(window["webpackJsonp"] = window["webpackJsonp"] || []).push([[249,5,7,10],{

/***/ "+NIl":
/*!***************************************************!*\
  !*** ./node_modules/codemirror/mode/stex/stex.js ***!
  \***************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://codemirror.net/LICENSE

/*
 * Author: Constantin Jucovschi (c.jucovschi@jacobs-university.de)
 * Licence: MIT
 */

(function(mod) {
  if (true) // CommonJS
    mod(__webpack_require__(/*! ../../lib/codemirror */ "VrN/"));
  else {}
})(function(CodeMirror) {
  "use strict";

  CodeMirror.defineMode("stex", function(_config, parserConfig) {
    "use strict";

    function pushCommand(state, command) {
      state.cmdState.push(command);
    }

    function peekCommand(state) {
      if (state.cmdState.length > 0) {
        return state.cmdState[state.cmdState.length - 1];
      } else {
        return null;
      }
    }

    function popCommand(state) {
      var plug = state.cmdState.pop();
      if (plug) {
        plug.closeBracket();
      }
    }

    // returns the non-default plugin closest to the end of the list
    function getMostPowerful(state) {
      var context = state.cmdState;
      for (var i = context.length - 1; i >= 0; i--) {
        var plug = context[i];
        if (plug.name == "DEFAULT") {
          continue;
        }
        return plug;
      }
      return { styleIdentifier: function() { return null; } };
    }

    function addPluginPattern(pluginName, cmdStyle, styles) {
      return function () {
        this.name = pluginName;
        this.bracketNo = 0;
        this.style = cmdStyle;
        this.styles = styles;
        this.argument = null;   // \begin and \end have arguments that follow. These are stored in the plugin

        this.styleIdentifier = function() {
          return this.styles[this.bracketNo - 1] || null;
        };
        this.openBracket = function() {
          this.bracketNo++;
          return "bracket";
        };
        this.closeBracket = function() {};
      };
    }

    var plugins = {};

    plugins["importmodule"] = addPluginPattern("importmodule", "tag", ["string", "builtin"]);
    plugins["documentclass"] = addPluginPattern("documentclass", "tag", ["", "atom"]);
    plugins["usepackage"] = addPluginPattern("usepackage", "tag", ["atom"]);
    plugins["begin"] = addPluginPattern("begin", "tag", ["atom"]);
    plugins["end"] = addPluginPattern("end", "tag", ["atom"]);

    plugins["label"    ] = addPluginPattern("label"    , "tag", ["atom"]);
    plugins["ref"      ] = addPluginPattern("ref"      , "tag", ["atom"]);
    plugins["eqref"    ] = addPluginPattern("eqref"    , "tag", ["atom"]);
    plugins["cite"     ] = addPluginPattern("cite"     , "tag", ["atom"]);
    plugins["bibitem"  ] = addPluginPattern("bibitem"  , "tag", ["atom"]);
    plugins["Bibitem"  ] = addPluginPattern("Bibitem"  , "tag", ["atom"]);
    plugins["RBibitem" ] = addPluginPattern("RBibitem" , "tag", ["atom"]);

    plugins["DEFAULT"] = function () {
      this.name = "DEFAULT";
      this.style = "tag";

      this.styleIdentifier = this.openBracket = this.closeBracket = function() {};
    };

    function setState(state, f) {
      state.f = f;
    }

    // called when in a normal (no environment) context
    function normal(source, state) {
      var plug;
      // Do we look like '\command' ?  If so, attempt to apply the plugin 'command'
      if (source.match(/^\\[a-zA-Z@]+/)) {
        var cmdName = source.current().slice(1);
        plug = plugins.hasOwnProperty(cmdName) ? plugins[cmdName] : plugins["DEFAULT"];
        plug = new plug();
        pushCommand(state, plug);
        setState(state, beginParams);
        return plug.style;
      }

      // escape characters
      if (source.match(/^\\[$&%#{}_]/)) {
        return "tag";
      }

      // white space control characters
      if (source.match(/^\\[,;!\/\\]/)) {
        return "tag";
      }

      // find if we're starting various math modes
      if (source.match("\\[")) {
        setState(state, function(source, state){ return inMathMode(source, state, "\\]"); });
        return "keyword";
      }
      if (source.match("\\(")) {
        setState(state, function(source, state){ return inMathMode(source, state, "\\)"); });
        return "keyword";
      }
      if (source.match("$$")) {
        setState(state, function(source, state){ return inMathMode(source, state, "$$"); });
        return "keyword";
      }
      if (source.match("$")) {
        setState(state, function(source, state){ return inMathMode(source, state, "$"); });
        return "keyword";
      }

      var ch = source.next();
      if (ch == "%") {
        source.skipToEnd();
        return "comment";
      } else if (ch == '}' || ch == ']') {
        plug = peekCommand(state);
        if (plug) {
          plug.closeBracket(ch);
          setState(state, beginParams);
        } else {
          return "error";
        }
        return "bracket";
      } else if (ch == '{' || ch == '[') {
        plug = plugins["DEFAULT"];
        plug = new plug();
        pushCommand(state, plug);
        return "bracket";
      } else if (/\d/.test(ch)) {
        source.eatWhile(/[\w.%]/);
        return "atom";
      } else {
        source.eatWhile(/[\w\-_]/);
        plug = getMostPowerful(state);
        if (plug.name == 'begin') {
          plug.argument = source.current();
        }
        return plug.styleIdentifier();
      }
    }

    function inMathMode(source, state, endModeSeq) {
      if (source.eatSpace()) {
        return null;
      }
      if (endModeSeq && source.match(endModeSeq)) {
        setState(state, normal);
        return "keyword";
      }
      if (source.match(/^\\[a-zA-Z@]+/)) {
        return "tag";
      }
      if (source.match(/^[a-zA-Z]+/)) {
        return "variable-2";
      }
      // escape characters
      if (source.match(/^\\[$&%#{}_]/)) {
        return "tag";
      }
      // white space control characters
      if (source.match(/^\\[,;!\/]/)) {
        return "tag";
      }
      // special math-mode characters
      if (source.match(/^[\^_&]/)) {
        return "tag";
      }
      // non-special characters
      if (source.match(/^[+\-<>|=,\/@!*:;'"`~#?]/)) {
        return null;
      }
      if (source.match(/^(\d+\.\d*|\d*\.\d+|\d+)/)) {
        return "number";
      }
      var ch = source.next();
      if (ch == "{" || ch == "}" || ch == "[" || ch == "]" || ch == "(" || ch == ")") {
        return "bracket";
      }

      if (ch == "%") {
        source.skipToEnd();
        return "comment";
      }
      return "error";
    }

    function beginParams(source, state) {
      var ch = source.peek(), lastPlug;
      if (ch == '{' || ch == '[') {
        lastPlug = peekCommand(state);
        lastPlug.openBracket(ch);
        source.eat(ch);
        setState(state, normal);
        return "bracket";
      }
      if (/[ \t\r]/.test(ch)) {
        source.eat(ch);
        return null;
      }
      setState(state, normal);
      popCommand(state);

      return normal(source, state);
    }

    return {
      startState: function() {
        var f = parserConfig.inMathMode ? function(source, state){ return inMathMode(source, state); } : normal;
        return {
          cmdState: [],
          f: f
        };
      },
      copyState: function(s) {
        return {
          cmdState: s.cmdState.slice(),
          f: s.f
        };
      },
      token: function(stream, state) {
        return state.f(stream, state);
      },
      blankLine: function(state) {
        state.f = normal;
        state.cmdState.length = 0;
      },
      lineComment: "%"
    };
  });

  CodeMirror.defineMIME("text/x-stex", "stex");
  CodeMirror.defineMIME("text/x-latex", "stex");

});


/***/ }),

/***/ "19Vz":
/*!**************************************************************!*\
  !*** ./node_modules/codemirror/addon/display/placeholder.js ***!
  \**************************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://codemirror.net/LICENSE

(function(mod) {
  if (true) // CommonJS
    mod(__webpack_require__(/*! ../../lib/codemirror */ "VrN/"));
  else {}
})(function(CodeMirror) {
  CodeMirror.defineOption("placeholder", "", function(cm, val, old) {
    var prev = old && old != CodeMirror.Init;
    if (val && !prev) {
      cm.on("blur", onBlur);
      cm.on("change", onChange);
      cm.on("swapDoc", onChange);
      CodeMirror.on(cm.getInputField(), "compositionupdate", cm.state.placeholderCompose = function() { onComposition(cm) })
      onChange(cm);
    } else if (!val && prev) {
      cm.off("blur", onBlur);
      cm.off("change", onChange);
      cm.off("swapDoc", onChange);
      CodeMirror.off(cm.getInputField(), "compositionupdate", cm.state.placeholderCompose)
      clearPlaceholder(cm);
      var wrapper = cm.getWrapperElement();
      wrapper.className = wrapper.className.replace(" CodeMirror-empty", "");
    }

    if (val && !cm.hasFocus()) onBlur(cm);
  });

  function clearPlaceholder(cm) {
    if (cm.state.placeholder) {
      cm.state.placeholder.parentNode.removeChild(cm.state.placeholder);
      cm.state.placeholder = null;
    }
  }
  function setPlaceholder(cm) {
    clearPlaceholder(cm);
    var elt = cm.state.placeholder = document.createElement("pre");
    elt.style.cssText = "height: 0; overflow: visible";
    elt.style.direction = cm.getOption("direction");
    elt.className = "CodeMirror-placeholder CodeMirror-line-like";
    var placeHolder = cm.getOption("placeholder")
    if (typeof placeHolder == "string") placeHolder = document.createTextNode(placeHolder)
    elt.appendChild(placeHolder)
    cm.display.lineSpace.insertBefore(elt, cm.display.lineSpace.firstChild);
  }

  function onComposition(cm) {
    setTimeout(function() {
      var empty = false, input = cm.getInputField()
      if (input.nodeName == "TEXTAREA")
        empty = !input.value
      else if (cm.lineCount() == 1)
        empty = !/[^\u200b]/.test(input.querySelector(".CodeMirror-line").textContent)
      if (empty) setPlaceholder(cm)
      else clearPlaceholder(cm)
    }, 20)
  }

  function onBlur(cm) {
    if (isEmpty(cm)) setPlaceholder(cm);
  }
  function onChange(cm) {
    var wrapper = cm.getWrapperElement(), empty = isEmpty(cm);
    wrapper.className = wrapper.className.replace(" CodeMirror-empty", "") + (empty ? " CodeMirror-empty" : "");

    if (empty) setPlaceholder(cm);
    else clearPlaceholder(cm);
  }

  function isEmpty(cm) {
    return (cm.lineCount() === 1) && (cm.getLine(0) === "");
  }
});


/***/ }),

/***/ "1eCo":
/*!*************************************************!*\
  !*** ./node_modules/codemirror/mode/xml/xml.js ***!
  \*************************************************/
/*! no static exports found */
/*! all exports used */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://codemirror.net/LICENSE

(function(mod) {
  if (true) // CommonJS
    mod(__webpack_require__(/*! ../../lib/codemirror */ "VrN/"));
  else {}
})(function(CodeMirror) {
"use strict";

var htmlConfig = {
  autoSelfClosers: {'area': true, 'base': true, 'br': true, 'col': true, 'command': true,
                    'embed': true, 'frame': true, 'hr': true, 'img': true, 'input': true,
                    'keygen': true, 'link': true, 'meta': true, 'param': true, 'source': true,
                    'track': true, 'wbr': true, 'menuitem': true},
  implicitlyClosed: {'dd': true, 'li': true, 'optgroup': true, 'option': true, 'p': true,
                     'rp': true, 'rt': true, 'tbody': true, 'td': true, 'tfoot': true,
                     'th': true, 'tr': true},
  contextGrabbers: {
    'dd': {'dd': true, 'dt': true},
    'dt': {'dd': true, 'dt': true},
    'li': {'li': true},
    'option': {'option': true, 'optgroup': true},
    'optgroup': {'optgroup': true},
    'p': {'address': true, 'article': true, 'aside': true, 'blockquote': true, 'dir': true,
          'div': true, 'dl': true, 'fieldset': true, 'footer': true, 'form': true,
          'h1': true, 'h2': true, 'h3': true, 'h4': true, 'h5': true, 'h6': true,
          'header': true, 'hgroup': true, 'hr': true, 'menu': true, 'nav': true, 'ol': true,
          'p': true, 'pre': true, 'section': true, 'table': true, 'ul': true},
    'rp': {'rp': true, 'rt': true},
    'rt': {'rp': true, 'rt': true},
    'tbody': {'tbody': true, 'tfoot': true},
    'td': {'td': true, 'th': true},
    'tfoot': {'tbody': true},
    'th': {'td': true, 'th': true},
    'thead': {'tbody': true, 'tfoot': true},
    'tr': {'tr': true}
  },
  doNotIndent: {"pre": true},
  allowUnquoted: true,
  allowMissing: true,
  caseFold: true
}

var xmlConfig = {
  autoSelfClosers: {},
  implicitlyClosed: {},
  contextGrabbers: {},
  doNotIndent: {},
  allowUnquoted: false,
  allowMissing: false,
  allowMissingTagName: false,
  caseFold: false
}

CodeMirror.defineMode("xml", function(editorConf, config_) {
  var indentUnit = editorConf.indentUnit
  var config = {}
  var defaults = config_.htmlMode ? htmlConfig : xmlConfig
  for (var prop in defaults) config[prop] = defaults[prop]
  for (var prop in config_) config[prop] = config_[prop]

  // Return variables for tokenizers
  var type, setStyle;

  function inText(stream, state) {
    function chain(parser) {
      state.tokenize = parser;
      return parser(stream, state);
    }

    var ch = stream.next();
    if (ch == "<") {
      if (stream.eat("!")) {
        if (stream.eat("[")) {
          if (stream.match("CDATA[")) return chain(inBlock("atom", "]]>"));
          else return null;
        } else if (stream.match("--")) {
          return chain(inBlock("comment", "-->"));
        } else if (stream.match("DOCTYPE", true, true)) {
          stream.eatWhile(/[\w\._\-]/);
          return chain(doctype(1));
        } else {
          return null;
        }
      } else if (stream.eat("?")) {
        stream.eatWhile(/[\w\._\-]/);
        state.tokenize = inBlock("meta", "?>");
        return "meta";
      } else {
        type = stream.eat("/") ? "closeTag" : "openTag";
        state.tokenize = inTag;
        return "tag bracket";
      }
    } else if (ch == "&") {
      var ok;
      if (stream.eat("#")) {
        if (stream.eat("x")) {
          ok = stream.eatWhile(/[a-fA-F\d]/) && stream.eat(";");
        } else {
          ok = stream.eatWhile(/[\d]/) && stream.eat(";");
        }
      } else {
        ok = stream.eatWhile(/[\w\.\-:]/) && stream.eat(";");
      }
      return ok ? "atom" : "error";
    } else {
      stream.eatWhile(/[^&<]/);
      return null;
    }
  }
  inText.isInText = true;

  function inTag(stream, state) {
    var ch = stream.next();
    if (ch == ">" || (ch == "/" && stream.eat(">"))) {
      state.tokenize = inText;
      type = ch == ">" ? "endTag" : "selfcloseTag";
      return "tag bracket";
    } else if (ch == "=") {
      type = "equals";
      return null;
    } else if (ch == "<") {
      state.tokenize = inText;
      state.state = baseState;
      state.tagName = state.tagStart = null;
      var next = state.tokenize(stream, state);
      return next ? next + " tag error" : "tag error";
    } else if (/[\'\"]/.test(ch)) {
      state.tokenize = inAttribute(ch);
      state.stringStartCol = stream.column();
      return state.tokenize(stream, state);
    } else {
      stream.match(/^[^\s\u00a0=<>\"\']*[^\s\u00a0=<>\"\'\/]/);
      return "word";
    }
  }

  function inAttribute(quote) {
    var closure = function(stream, state) {
      while (!stream.eol()) {
        if (stream.next() == quote) {
          state.tokenize = inTag;
          break;
        }
      }
      return "string";
    };
    closure.isInAttribute = true;
    return closure;
  }

  function inBlock(style, terminator) {
    return function(stream, state) {
      while (!stream.eol()) {
        if (stream.match(terminator)) {
          state.tokenize = inText;
          break;
        }
        stream.next();
      }
      return style;
    }
  }

  function doctype(depth) {
    return function(stream, state) {
      var ch;
      while ((ch = stream.next()) != null) {
        if (ch == "<") {
          state.tokenize = doctype(depth + 1);
          return state.tokenize(stream, state);
        } else if (ch == ">") {
          if (depth == 1) {
            state.tokenize = inText;
            break;
          } else {
            state.tokenize = doctype(depth - 1);
            return state.tokenize(stream, state);
          }
        }
      }
      return "meta";
    };
  }

  function Context(state, tagName, startOfLine) {
    this.prev = state.context;
    this.tagName = tagName;
    this.indent = state.indented;
    this.startOfLine = startOfLine;
    if (config.doNotIndent.hasOwnProperty(tagName) || (state.context && state.context.noIndent))
      this.noIndent = true;
  }
  function popContext(state) {
    if (state.context) state.context = state.context.prev;
  }
  function maybePopContext(state, nextTagName) {
    var parentTagName;
    while (true) {
      if (!state.context) {
        return;
      }
      parentTagName = state.context.tagName;
      if (!config.contextGrabbers.hasOwnProperty(parentTagName) ||
          !config.contextGrabbers[parentTagName].hasOwnProperty(nextTagName)) {
        return;
      }
      popContext(state);
    }
  }

  function baseState(type, stream, state) {
    if (type == "openTag") {
      state.tagStart = stream.column();
      return tagNameState;
    } else if (type == "closeTag") {
      return closeTagNameState;
    } else {
      return baseState;
    }
  }
  function tagNameState(type, stream, state) {
    if (type == "word") {
      state.tagName = stream.current();
      setStyle = "tag";
      return attrState;
    } else if (config.allowMissingTagName && type == "endTag") {
      setStyle = "tag bracket";
      return attrState(type, stream, state);
    } else {
      setStyle = "error";
      return tagNameState;
    }
  }
  function closeTagNameState(type, stream, state) {
    if (type == "word") {
      var tagName = stream.current();
      if (state.context && state.context.tagName != tagName &&
          config.implicitlyClosed.hasOwnProperty(state.context.tagName))
        popContext(state);
      if ((state.context && state.context.tagName == tagName) || config.matchClosing === false) {
        setStyle = "tag";
        return closeState;
      } else {
        setStyle = "tag error";
        return closeStateErr;
      }
    } else if (config.allowMissingTagName && type == "endTag") {
      setStyle = "tag bracket";
      return closeState(type, stream, state);
    } else {
      setStyle = "error";
      return closeStateErr;
    }
  }

  function closeState(type, _stream, state) {
    if (type != "endTag") {
      setStyle = "error";
      return closeState;
    }
    popContext(state);
    return baseState;
  }
  function closeStateErr(type, stream, state) {
    setStyle = "error";
    return closeState(type, stream, state);
  }

  function attrState(type, _stream, state) {
    if (type == "word") {
      setStyle = "attribute";
      return attrEqState;
    } else if (type == "endTag" || type == "selfcloseTag") {
      var tagName = state.tagName, tagStart = state.tagStart;
      state.tagName = state.tagStart = null;
      if (type == "selfcloseTag" ||
          config.autoSelfClosers.hasOwnProperty(tagName)) {
        maybePopContext(state, tagName);
      } else {
        maybePopContext(state, tagName);
        state.context = new Context(state, tagName, tagStart == state.indented);
      }
      return baseState;
    }
    setStyle = "error";
    return attrState;
  }
  function attrEqState(type, stream, state) {
    if (type == "equals") return attrValueState;
    if (!config.allowMissing) setStyle = "error";
    return attrState(type, stream, state);
  }
  function attrValueState(type, stream, state) {
    if (type == "string") return attrContinuedState;
    if (type == "word" && config.allowUnquoted) {setStyle = "string"; return attrState;}
    setStyle = "error";
    return attrState(type, stream, state);
  }
  function attrContinuedState(type, stream, state) {
    if (type == "string") return attrContinuedState;
    return attrState(type, stream, state);
  }

  return {
    startState: function(baseIndent) {
      var state = {tokenize: inText,
                   state: baseState,
                   indented: baseIndent || 0,
                   tagName: null, tagStart: null,
                   context: null}
      if (baseIndent != null) state.baseIndent = baseIndent
      return state
    },

    token: function(stream, state) {
      if (!state.tagName && stream.sol())
        state.indented = stream.indentation();

      if (stream.eatSpace()) return null;
      type = null;
      var style = state.tokenize(stream, state);
      if ((style || type) && style != "comment") {
        setStyle = null;
        state.state = state.state(type || style, stream, state);
        if (setStyle)
          style = setStyle == "error" ? style + " error" : setStyle;
      }
      return style;
    },

    indent: function(state, textAfter, fullLine) {
      var context = state.context;
      // Indent multi-line strings (e.g. css).
      if (state.tokenize.isInAttribute) {
        if (state.tagStart == state.indented)
          return state.stringStartCol + 1;
        else
          return state.indented + indentUnit;
      }
      if (context && context.noIndent) return CodeMirror.Pass;
      if (state.tokenize != inTag && state.tokenize != inText)
        return fullLine ? fullLine.match(/^(\s*)/)[0].length : 0;
      // Indent the starts of attribute names.
      if (state.tagName) {
        if (config.multilineTagIndentPastTag !== false)
          return state.tagStart + state.tagName.length + 2;
        else
          return state.tagStart + indentUnit * (config.multilineTagIndentFactor || 1);
      }
      if (config.alignCDATA && /<!\[CDATA\[/.test(textAfter)) return 0;
      var tagAfter = textAfter && /^<(\/)?([\w_:\.-]*)/.exec(textAfter);
      if (tagAfter && tagAfter[1]) { // Closing tag spotted
        while (context) {
          if (context.tagName == tagAfter[2]) {
            context = context.prev;
            break;
          } else if (config.implicitlyClosed.hasOwnProperty(context.tagName)) {
            context = context.prev;
          } else {
            break;
          }
        }
      } else if (tagAfter) { // Opening tag spotted
        while (context) {
          var grabbers = config.contextGrabbers[context.tagName];
          if (grabbers && grabbers.hasOwnProperty(tagAfter[2]))
            context = context.prev;
          else
            break;
        }
      }
      while (context && context.prev && !context.startOfLine)
        context = context.prev;
      if (context) return context.indent + indentUnit;
      else return state.baseIndent || 0;
    },

    electricInput: /<\/[\s\w:]+>$/,
    blockCommentStart: "<!--",
    blockCommentEnd: "-->",

    configuration: config.htmlMode ? "html" : "xml",
    helperType: config.htmlMode ? "html" : "xml",

    skipAttribute: function(state) {
      if (state.state == attrValueState)
        state.state = attrState
    },

    xmlCurrentTag: function(state) {
      return state.tagName ? {name: state.tagName, close: state.type == "closeTag"} : null
    },

    xmlCurrentContext: function(state) {
      var context = []
      for (var cx = state.context; cx; cx = cx.prev)
        if (cx.tagName) context.push(cx.tagName)
      return context.reverse()
    }
  };
});

CodeMirror.defineMIME("text/xml", "xml");
CodeMirror.defineMIME("application/xml", "xml");
if (!CodeMirror.mimeModes.hasOwnProperty("text/html"))
  CodeMirror.defineMIME("text/html", {name: "xml", htmlMode: true});

});


/***/ }),

/***/ "55Ip":
/*!***************************************************************!*\
  !*** ./node_modules/react-router-dom/esm/react-router-dom.js ***!
  \***************************************************************/
/*! exports provided: MemoryRouter, Prompt, Redirect, Route, Router, StaticRouter, Switch, generatePath, matchPath, useHistory, useLocation, useParams, useRouteMatch, withRouter, BrowserRouter, HashRouter, Link, NavLink */
/*! exports used: Link, NavLink */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* unused harmony export BrowserRouter */
/* unused harmony export HashRouter */
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return Link; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "b", function() { return NavLink; });
/* harmony import */ var react_router__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! react-router */ "Ty5D");
/* harmony import */ var _babel_runtime_helpers_esm_inheritsLoose__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! @babel/runtime/helpers/esm/inheritsLoose */ "dI71");
/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! react */ "cDcd");
/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_2___default = /*#__PURE__*/__webpack_require__.n(react__WEBPACK_IMPORTED_MODULE_2__);
/* harmony import */ var history__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! history */ "YS25");
/* harmony import */ var prop_types__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! prop-types */ "17x9");
/* harmony import */ var prop_types__WEBPACK_IMPORTED_MODULE_4___default = /*#__PURE__*/__webpack_require__.n(prop_types__WEBPACK_IMPORTED_MODULE_4__);
/* harmony import */ var _babel_runtime_helpers_esm_extends__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! @babel/runtime/helpers/esm/extends */ "wx14");
/* harmony import */ var _babel_runtime_helpers_esm_objectWithoutPropertiesLoose__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! @babel/runtime/helpers/esm/objectWithoutPropertiesLoose */ "zLVn");
/* harmony import */ var tiny_invariant__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! tiny-invariant */ "9R94");











/**
 * The public API for a <Router> that uses HTML5 history.
 */

var BrowserRouter =
/*#__PURE__*/
function (_React$Component) {
  Object(_babel_runtime_helpers_esm_inheritsLoose__WEBPACK_IMPORTED_MODULE_1__[/* default */ "a"])(BrowserRouter, _React$Component);

  function BrowserRouter() {
    var _this;

    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    _this = _React$Component.call.apply(_React$Component, [this].concat(args)) || this;
    _this.history = Object(history__WEBPACK_IMPORTED_MODULE_3__[/* createBrowserHistory */ "a"])(_this.props);
    return _this;
  }

  var _proto = BrowserRouter.prototype;

  _proto.render = function render() {
    return react__WEBPACK_IMPORTED_MODULE_2___default.a.createElement(react_router__WEBPACK_IMPORTED_MODULE_0__[/* Router */ "c"], {
      history: this.history,
      children: this.props.children
    });
  };

  return BrowserRouter;
}(react__WEBPACK_IMPORTED_MODULE_2___default.a.Component);

if (false) {}

/**
 * The public API for a <Router> that uses window.location.hash.
 */

var HashRouter =
/*#__PURE__*/
function (_React$Component) {
  Object(_babel_runtime_helpers_esm_inheritsLoose__WEBPACK_IMPORTED_MODULE_1__[/* default */ "a"])(HashRouter, _React$Component);

  function HashRouter() {
    var _this;

    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    _this = _React$Component.call.apply(_React$Component, [this].concat(args)) || this;
    _this.history = Object(history__WEBPACK_IMPORTED_MODULE_3__[/* createHashHistory */ "b"])(_this.props);
    return _this;
  }

  var _proto = HashRouter.prototype;

  _proto.render = function render() {
    return react__WEBPACK_IMPORTED_MODULE_2___default.a.createElement(react_router__WEBPACK_IMPORTED_MODULE_0__[/* Router */ "c"], {
      history: this.history,
      children: this.props.children
    });
  };

  return HashRouter;
}(react__WEBPACK_IMPORTED_MODULE_2___default.a.Component);

if (false) {}

var resolveToLocation = function resolveToLocation(to, currentLocation) {
  return typeof to === "function" ? to(currentLocation) : to;
};
var normalizeToLocation = function normalizeToLocation(to, currentLocation) {
  return typeof to === "string" ? Object(history__WEBPACK_IMPORTED_MODULE_3__[/* createLocation */ "c"])(to, null, null, currentLocation) : to;
};

var forwardRefShim = function forwardRefShim(C) {
  return C;
};

var forwardRef = react__WEBPACK_IMPORTED_MODULE_2___default.a.forwardRef;

if (typeof forwardRef === "undefined") {
  forwardRef = forwardRefShim;
}

function isModifiedEvent(event) {
  return !!(event.metaKey || event.altKey || event.ctrlKey || event.shiftKey);
}

var LinkAnchor = forwardRef(function (_ref, forwardedRef) {
  var innerRef = _ref.innerRef,
      navigate = _ref.navigate,
      _onClick = _ref.onClick,
      rest = Object(_babel_runtime_helpers_esm_objectWithoutPropertiesLoose__WEBPACK_IMPORTED_MODULE_6__[/* default */ "a"])(_ref, ["innerRef", "navigate", "onClick"]);

  var target = rest.target;

  var props = Object(_babel_runtime_helpers_esm_extends__WEBPACK_IMPORTED_MODULE_5__[/* default */ "a"])({}, rest, {
    onClick: function onClick(event) {
      try {
        if (_onClick) _onClick(event);
      } catch (ex) {
        event.preventDefault();
        throw ex;
      }

      if (!event.defaultPrevented && // onClick prevented default
      event.button === 0 && ( // ignore everything but left clicks
      !target || target === "_self") && // let browser handle "target=_blank" etc.
      !isModifiedEvent(event) // ignore clicks with modifier keys
      ) {
          event.preventDefault();
          navigate();
        }
    }
  }); // React 15 compat


  if (forwardRefShim !== forwardRef) {
    props.ref = forwardedRef || innerRef;
  } else {
    props.ref = innerRef;
  }
  /* eslint-disable-next-line jsx-a11y/anchor-has-content */


  return react__WEBPACK_IMPORTED_MODULE_2___default.a.createElement("a", props);
});

if (false) {}
/**
 * The public API for rendering a history-aware <a>.
 */


var Link = forwardRef(function (_ref2, forwardedRef) {
  var _ref2$component = _ref2.component,
      component = _ref2$component === void 0 ? LinkAnchor : _ref2$component,
      replace = _ref2.replace,
      to = _ref2.to,
      innerRef = _ref2.innerRef,
      rest = Object(_babel_runtime_helpers_esm_objectWithoutPropertiesLoose__WEBPACK_IMPORTED_MODULE_6__[/* default */ "a"])(_ref2, ["component", "replace", "to", "innerRef"]);

  return react__WEBPACK_IMPORTED_MODULE_2___default.a.createElement(react_router__WEBPACK_IMPORTED_MODULE_0__[/* __RouterContext */ "e"].Consumer, null, function (context) {
    !context ?  false ? undefined : Object(tiny_invariant__WEBPACK_IMPORTED_MODULE_7__[/* default */ "a"])(false) : void 0;
    var history = context.history;
    var location = normalizeToLocation(resolveToLocation(to, context.location), context.location);
    var href = location ? history.createHref(location) : "";

    var props = Object(_babel_runtime_helpers_esm_extends__WEBPACK_IMPORTED_MODULE_5__[/* default */ "a"])({}, rest, {
      href: href,
      navigate: function navigate() {
        var location = resolveToLocation(to, context.location);
        var method = replace ? history.replace : history.push;
        method(location);
      }
    }); // React 15 compat


    if (forwardRefShim !== forwardRef) {
      props.ref = forwardedRef || innerRef;
    } else {
      props.innerRef = innerRef;
    }

    return react__WEBPACK_IMPORTED_MODULE_2___default.a.createElement(component, props);
  });
});

if (false) { var refType, toType; }

var forwardRefShim$1 = function forwardRefShim(C) {
  return C;
};

var forwardRef$1 = react__WEBPACK_IMPORTED_MODULE_2___default.a.forwardRef;

if (typeof forwardRef$1 === "undefined") {
  forwardRef$1 = forwardRefShim$1;
}

function joinClassnames() {
  for (var _len = arguments.length, classnames = new Array(_len), _key = 0; _key < _len; _key++) {
    classnames[_key] = arguments[_key];
  }

  return classnames.filter(function (i) {
    return i;
  }).join(" ");
}
/**
 * A <Link> wrapper that knows if it's "active" or not.
 */


var NavLink = forwardRef$1(function (_ref, forwardedRef) {
  var _ref$ariaCurrent = _ref["aria-current"],
      ariaCurrent = _ref$ariaCurrent === void 0 ? "page" : _ref$ariaCurrent,
      _ref$activeClassName = _ref.activeClassName,
      activeClassName = _ref$activeClassName === void 0 ? "active" : _ref$activeClassName,
      activeStyle = _ref.activeStyle,
      classNameProp = _ref.className,
      exact = _ref.exact,
      isActiveProp = _ref.isActive,
      locationProp = _ref.location,
      sensitive = _ref.sensitive,
      strict = _ref.strict,
      styleProp = _ref.style,
      to = _ref.to,
      innerRef = _ref.innerRef,
      rest = Object(_babel_runtime_helpers_esm_objectWithoutPropertiesLoose__WEBPACK_IMPORTED_MODULE_6__[/* default */ "a"])(_ref, ["aria-current", "activeClassName", "activeStyle", "className", "exact", "isActive", "location", "sensitive", "strict", "style", "to", "innerRef"]);

  return react__WEBPACK_IMPORTED_MODULE_2___default.a.createElement(react_router__WEBPACK_IMPORTED_MODULE_0__[/* __RouterContext */ "e"].Consumer, null, function (context) {
    !context ?  false ? undefined : Object(tiny_invariant__WEBPACK_IMPORTED_MODULE_7__[/* default */ "a"])(false) : void 0;
    var currentLocation = locationProp || context.location;
    var toLocation = normalizeToLocation(resolveToLocation(to, currentLocation), currentLocation);
    var path = toLocation.pathname; // Regex taken from: https://github.com/pillarjs/path-to-regexp/blob/master/index.js#L202

    var escapedPath = path && path.replace(/([.+*?=^!:${}()[\]|/\\])/g, "\\$1");
    var match = escapedPath ? Object(react_router__WEBPACK_IMPORTED_MODULE_0__[/* matchPath */ "f"])(currentLocation.pathname, {
      path: escapedPath,
      exact: exact,
      sensitive: sensitive,
      strict: strict
    }) : null;
    var isActive = !!(isActiveProp ? isActiveProp(match, currentLocation) : match);
    var className = isActive ? joinClassnames(classNameProp, activeClassName) : classNameProp;
    var style = isActive ? Object(_babel_runtime_helpers_esm_extends__WEBPACK_IMPORTED_MODULE_5__[/* default */ "a"])({}, styleProp, {}, activeStyle) : styleProp;

    var props = Object(_babel_runtime_helpers_esm_extends__WEBPACK_IMPORTED_MODULE_5__[/* default */ "a"])({
      "aria-current": isActive && ariaCurrent || null,
      className: className,
      style: style,
      to: toLocation
    }, rest); // React 15 compat


    if (forwardRefShim$1 !== forwardRef$1) {
      props.ref = forwardedRef || innerRef;
    } else {
      props.innerRef = innerRef;
    }

    return react__WEBPACK_IMPORTED_MODULE_2___default.a.createElement(Link, props);
  });
});

if (false) { var ariaCurrentType; }


//# sourceMappingURL=react-router-dom.js.map


/***/ }),

/***/ "7ahc":
/*!*************************************************************!*\
  !*** ./src/components/markdown-editor/code-block/index.tsx ***!
  \*************************************************************/
/*! exports provided: default, MyCodeMirror */
/*! exports used: MyCodeMirror, default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return MyCodeMirror; });
/* harmony import */ var _Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_objectSpread2__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/objectSpread2 */ "k1fw");
/* harmony import */ var _Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_extends__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/extends */ "0Owb");
/* harmony import */ var antd_es_button_style__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! antd/es/button/style */ "+L6B");
/* harmony import */ var antd_es_button__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! antd/es/button */ "2/Rp");
/* harmony import */ var antd_es_form_style__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! antd/es/form/style */ "y8nQ");
/* harmony import */ var antd_es_form__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! antd/es/form */ "Vl3Y");
/* harmony import */ var _Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_slicedToArray__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/slicedToArray */ "tJVT");
/* harmony import */ var antd_es_select_style__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! antd/es/select/style */ "OaEy");
/* harmony import */ var antd_es_select__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! antd/es/select */ "2fM7");
/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(/*! react */ "cDcd");
/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_9___default = /*#__PURE__*/__webpack_require__.n(react__WEBPACK_IMPORTED_MODULE_9__);
/* harmony import */ var codemirror__WEBPACK_IMPORTED_MODULE_10__ = __webpack_require__(/*! codemirror */ "VrN/");
/* harmony import */ var codemirror__WEBPACK_IMPORTED_MODULE_10___default = /*#__PURE__*/__webpack_require__.n(codemirror__WEBPACK_IMPORTED_MODULE_10__);
/* harmony import */ var codemirror_lib_codemirror_css__WEBPACK_IMPORTED_MODULE_11__ = __webpack_require__(/*! codemirror/lib/codemirror.css */ "p77/");
/* harmony import */ var codemirror_lib_codemirror_css__WEBPACK_IMPORTED_MODULE_11___default = /*#__PURE__*/__webpack_require__.n(codemirror_lib_codemirror_css__WEBPACK_IMPORTED_MODULE_11__);
/* harmony import */ var codemirror_theme_blackboard_css__WEBPACK_IMPORTED_MODULE_12__ = __webpack_require__(/*! codemirror/theme/blackboard.css */ "c5Ni");
/* harmony import */ var codemirror_theme_blackboard_css__WEBPACK_IMPORTED_MODULE_12___default = /*#__PURE__*/__webpack_require__.n(codemirror_theme_blackboard_css__WEBPACK_IMPORTED_MODULE_12__);













var Option = antd_es_select__WEBPACK_IMPORTED_MODULE_8__[/* default */ "a"].Option; //https://github.com/codemirror/CodeMirror/issues/4838

var formItemLayout = {
  labelCol: {
    span: 4
  },
  wrapperCol: {
    span: 20
  }
};
var LanguageDesc = {
  asp: ['ASP', 'vbscript'],
  actionscript: ['ActionScript(3.0)/Flash/Flex', 'clike'],
  bash: ['Bash/Bat', 'shell'],
  css: ['CSS', 'css'],
  c: ['C', 'clike'],
  cpp: ['C++', 'clike'],
  csharp: ['C#', 'clike'],
  coffeescript: ['CoffeeScript', 'coffeescript'],
  d: ['D', 'd'],
  dart: ['Dart', 'dart'],
  delphi: ['Delphi/Pascal', 'pascal'],
  erlang: ['Erlang', 'erlang'],
  go: ['Golang', 'go'],
  groovy: ['Groovy', 'groovy'],
  html: ['HTML', 'text/html'],
  java: ['Java', 'clike'],
  json: ['JSON', 'text/json'],
  javascript: ['Javascript', 'javascript'],
  lua: ['Lua', 'lua'],
  less: ['LESS', 'css'],
  markdown: ['Markdown', 'gfm'],
  'objective-c': ['Objective-C', 'clike'],
  php: ['PHP', 'php'],
  perl: ['Perl', 'perl'],
  python: ['Python', 'python'],
  r: ['R', 'r'],
  rst: ['reStructedText', 'rst'],
  ruby: ['Ruby', 'ruby'],
  sql: ['SQL', 'sql'],
  sass: ['SASS/SCSS', 'sass'],
  shell: ['Shell', 'shell'],
  scala: ['Scala', 'clike'],
  swift: ['Swift', 'clike'],
  vb: ['VB/VBScript', 'vb'],
  xml: ['XML', 'text/xml'],
  yaml: ['YAML', 'yaml']
};
/* harmony default export */ __webpack_exports__["b"] = (function (_ref) {
  var callback = _ref.callback,
      onCancel = _ref.onCancel;

  var _useState = Object(react__WEBPACK_IMPORTED_MODULE_9__["useState"])('python'),
      _useState2 = Object(_Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_slicedToArray__WEBPACK_IMPORTED_MODULE_6__[/* default */ "a"])(_useState, 2),
      mode = _useState2[0],
      setMode = _useState2[1];

  function onSetMode(value) {
    setMode(LanguageDesc[value][1]);
  }

  function onSubmit(values) {
    callback(values);
  }

  return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_9___default.a.createElement(antd_es_form__WEBPACK_IMPORTED_MODULE_5__[/* default */ "a"], Object(_Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_extends__WEBPACK_IMPORTED_MODULE_1__[/* default */ "a"])({}, formItemLayout, {
    className: "code-block-panel",
    initialValues: {
      language: 'python',
      content: ''
    },
    onFinish: onSubmit
  }), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_9___default.a.createElement(antd_es_form__WEBPACK_IMPORTED_MODULE_5__[/* default */ "a"].Item, {
    label: "\u4EE3\u7801\u8BED\u8A00",
    name: "language"
  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_9___default.a.createElement(antd_es_select__WEBPACK_IMPORTED_MODULE_8__[/* default */ "a"], {
    onChange: onSetMode
  }, Object.keys(LanguageDesc).map(function (item) {
    return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_9___default.a.createElement(Option, {
      key: item,
      value: item
    }, LanguageDesc[item][0]);
  }))), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_9___default.a.createElement(antd_es_form__WEBPACK_IMPORTED_MODULE_5__[/* default */ "a"].Item, {
    label: "\u4EE3\u7801\u5185\u5BB9",
    name: "content",
    rules: [{
      required: true,
      message: '请输入代码内容'
    }]
  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_9___default.a.createElement(MyCodeMirror, {
    mode: mode
  })), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_9___default.a.createElement("div", {
    className: "flex-container flex-end"
  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_9___default.a.createElement(antd_es_button__WEBPACK_IMPORTED_MODULE_3__[/* default */ "a"], {
    type: "primary",
    htmlType: "submit",
    style: {
      marginRight: 10
    }
  }, "\u786E\u5B9A"), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_9___default.a.createElement(antd_es_button__WEBPACK_IMPORTED_MODULE_3__[/* default */ "a"], {
    type: "ghost",
    onClick: onCancel
  }, "\u53D6\u6D88")));
});
function MyCodeMirror(_ref2) {
  var value = _ref2.value,
      onChange = _ref2.onChange,
      mode = _ref2.mode,
      _ref2$options = _ref2.options,
      options = _ref2$options === void 0 ? {} : _ref2$options;
  var el = Object(react__WEBPACK_IMPORTED_MODULE_9__["useRef"])();

  var _useState3 = Object(react__WEBPACK_IMPORTED_MODULE_9__["useState"])(),
      _useState4 = Object(_Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_slicedToArray__WEBPACK_IMPORTED_MODULE_6__[/* default */ "a"])(_useState3, 2),
      cm = _useState4[0],
      setCm = _useState4[1];

  Object(react__WEBPACK_IMPORTED_MODULE_9__["useEffect"])(function () {
    if (cm) {
      function onChangeHandler(cm) {
        var content = cm.getValue();
        onChange && onChange(content);
      }

      cm.on('change', onChangeHandler);
      return function () {
        cm.off('change', onChangeHandler);
      };
    }
  }, [cm, onChange]);
  Object(react__WEBPACK_IMPORTED_MODULE_9__["useEffect"])(function () {
    if (cm) {
      cm.setOption('mode', mode);
    }
  }, [cm, mode]);
  Object(react__WEBPACK_IMPORTED_MODULE_9__["useEffect"])(function () {
    if (cm) {
      if (value !== cm.getValue() || value === '') {
        setTimeout(function () {
          cm.setValue(value || ' ');
        }, 300);
      }
    }
  }, [cm, value]);
  Object(react__WEBPACK_IMPORTED_MODULE_9__["useEffect"])(function () {
    if (el.current && !cm) {
      var instance = codemirror__WEBPACK_IMPORTED_MODULE_10___default.a.fromTextArea(el.current, Object(_Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_objectSpread2__WEBPACK_IMPORTED_MODULE_0__[/* default */ "a"])({
        mode: mode,
        lineNumbers: true,
        lineWrapping: true,
        autoCloseBrackets: true,
        tabSize: 4,
        autofocus: true,
        autoCloseTags: true,
        matchBrackets: true,
        styleActiveLine: true
      }, options));
      setCm(instance);
    }
  }, [el.current, cm]);
  return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_9___default.a.createElement("div", {
    className: "my-codemirror-container"
  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_9___default.a.createElement("textarea", {
    ref: el
  }));
}

/***/ }),

/***/ "7qnI":
/*!********************************************************!*\
  !*** ./src/components/Editor/NullChildEditor/index.js ***!
  \********************************************************/
/*! exports provided: default */
/*! exports used: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony import */ var antd_es_tooltip_style__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! antd/es/tooltip/style */ "5Dmo");
/* harmony import */ var antd_es_tooltip__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! antd/es/tooltip */ "3S7+");
/* harmony import */ var _Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_classCallCheck__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/classCallCheck */ "fWQN");
/* harmony import */ var _Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_createClass__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/createClass */ "mtLc");
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/* harmony import */ var _Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_createSuper__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/createSuper */ "879j");
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var TextArea = antd_es_input__WEBPACK_IMPORTED_MODULE_7__[/* default */ "a"].TextArea;

var NullChildEditor = /*#__PURE__*/function (_Component) {
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  function NullChildEditor() {
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    return _super.apply(this, arguments);
  }

  Object(_Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_createClass__WEBPACK_IMPORTED_MODULE_3__[/* default */ "a"])(NullChildEditor, [{
    key: "render",
    value: function render() {
      var _this = this;

      var _this$props = this.props,
          index = _this$props.index,
          onAnswerChange = _this$props.onAnswerChange,
          addChildAnswer = _this$props.addChildAnswer,
          exerciseIsPublish = _this$props.exerciseIsPublish,
          answers = _this$props.answers,
          activeOptionErrorIndex = _this$props.activeOptionErrorIndex,
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        style: {
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          spellCheck: false,
          rows: 4,
          value: item || '',
          defaultValue: "\u8BF7\u8F93\u5165\u53C2\u8003\u7B54\u6848".concat(itemIndex == 0 ? '' : '(可选)'),
          onChange: function onChange(event) {
            return onAnswerChange(index, itemIndex, event.target.value);
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          style: {
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          onClick: function onClick() {
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          onClick: function onClick() {
            return addChildAnswer(index);
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          style: {
            float: 'right',
            visibility: itemIndex == answers.length - 1 ? '' : 'hidden'
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        }))));
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  return NullChildEditor;
}(react__WEBPACK_IMPORTED_MODULE_8__["Component"]);

/* harmony default export */ __webpack_exports__["a"] = (NullChildEditor);

/***/ }),

/***/ "8EBN":
/*!**********************************************!*\
  !*** ./node_modules/codemirror/mode/meta.js ***!
  \**********************************************/
/*! no static exports found */
/*! all exports used */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://codemirror.net/LICENSE

(function(mod) {
  if (true) // CommonJS
    mod(__webpack_require__(/*! ../lib/codemirror */ "VrN/"));
  else {}
})(function(CodeMirror) {
  "use strict";

  CodeMirror.modeInfo = [
    {name: "APL", mime: "text/apl", mode: "apl", ext: ["dyalog", "apl"]},
    {name: "PGP", mimes: ["application/pgp", "application/pgp-encrypted", "application/pgp-keys", "application/pgp-signature"], mode: "asciiarmor", ext: ["asc", "pgp", "sig"]},
    {name: "ASN.1", mime: "text/x-ttcn-asn", mode: "asn.1", ext: ["asn", "asn1"]},
    {name: "Asterisk", mime: "text/x-asterisk", mode: "asterisk", file: /^extensions\.conf$/i},
    {name: "Brainfuck", mime: "text/x-brainfuck", mode: "brainfuck", ext: ["b", "bf"]},
    {name: "C", mime: "text/x-csrc", mode: "clike", ext: ["c", "h", "ino"]},
    {name: "C++", mime: "text/x-c++src", mode: "clike", ext: ["cpp", "c++", "cc", "cxx", "hpp", "h++", "hh", "hxx"], alias: ["cpp"]},
    {name: "Cobol", mime: "text/x-cobol", mode: "cobol", ext: ["cob", "cpy"]},
    {name: "C#", mime: "text/x-csharp", mode: "clike", ext: ["cs"], alias: ["csharp", "cs"]},
    {name: "Clojure", mime: "text/x-clojure", mode: "clojure", ext: ["clj", "cljc", "cljx"]},
    {name: "ClojureScript", mime: "text/x-clojurescript", mode: "clojure", ext: ["cljs"]},
    {name: "Closure Stylesheets (GSS)", mime: "text/x-gss", mode: "css", ext: ["gss"]},
    {name: "CMake", mime: "text/x-cmake", mode: "cmake", ext: ["cmake", "cmake.in"], file: /^CMakeLists\.txt$/},
    {name: "CoffeeScript", mimes: ["application/vnd.coffeescript", "text/coffeescript", "text/x-coffeescript"], mode: "coffeescript", ext: ["coffee"], alias: ["coffee", "coffee-script"]},
    {name: "Common Lisp", mime: "text/x-common-lisp", mode: "commonlisp", ext: ["cl", "lisp", "el"], alias: ["lisp"]},
    {name: "Cypher", mime: "application/x-cypher-query", mode: "cypher", ext: ["cyp", "cypher"]},
    {name: "Cython", mime: "text/x-cython", mode: "python", ext: ["pyx", "pxd", "pxi"]},
    {name: "Crystal", mime: "text/x-crystal", mode: "crystal", ext: ["cr"]},
    {name: "CSS", mime: "text/css", mode: "css", ext: ["css"]},
    {name: "CQL", mime: "text/x-cassandra", mode: "sql", ext: ["cql"]},
    {name: "D", mime: "text/x-d", mode: "d", ext: ["d"]},
    {name: "Dart", mimes: ["application/dart", "text/x-dart"], mode: "dart", ext: ["dart"]},
    {name: "diff", mime: "text/x-diff", mode: "diff", ext: ["diff", "patch"]},
    {name: "Django", mime: "text/x-django", mode: "django"},
    {name: "Dockerfile", mime: "text/x-dockerfile", mode: "dockerfile", file: /^Dockerfile$/},
    {name: "DTD", mime: "application/xml-dtd", mode: "dtd", ext: ["dtd"]},
    {name: "Dylan", mime: "text/x-dylan", mode: "dylan", ext: ["dylan", "dyl", "intr"]},
    {name: "EBNF", mime: "text/x-ebnf", mode: "ebnf"},
    {name: "ECL", mime: "text/x-ecl", mode: "ecl", ext: ["ecl"]},
    {name: "edn", mime: "application/edn", mode: "clojure", ext: ["edn"]},
    {name: "Eiffel", mime: "text/x-eiffel", mode: "eiffel", ext: ["e"]},
    {name: "Elm", mime: "text/x-elm", mode: "elm", ext: ["elm"]},
    {name: "Embedded Javascript", mime: "application/x-ejs", mode: "htmlembedded", ext: ["ejs"]},
    {name: "Embedded Ruby", mime: "application/x-erb", mode: "htmlembedded", ext: ["erb"]},
    {name: "Erlang", mime: "text/x-erlang", mode: "erlang", ext: ["erl"]},
    {name: "Esper", mime: "text/x-esper", mode: "sql"},
    {name: "Factor", mime: "text/x-factor", mode: "factor", ext: ["factor"]},
    {name: "FCL", mime: "text/x-fcl", mode: "fcl"},
    {name: "Forth", mime: "text/x-forth", mode: "forth", ext: ["forth", "fth", "4th"]},
    {name: "Fortran", mime: "text/x-fortran", mode: "fortran", ext: ["f", "for", "f77", "f90", "f95"]},
    {name: "F#", mime: "text/x-fsharp", mode: "mllike", ext: ["fs"], alias: ["fsharp"]},
    {name: "Gas", mime: "text/x-gas", mode: "gas", ext: ["s"]},
    {name: "Gherkin", mime: "text/x-feature", mode: "gherkin", ext: ["feature"]},
    {name: "GitHub Flavored Markdown", mime: "text/x-gfm", mode: "gfm", file: /^(readme|contributing|history)\.md$/i},
    {name: "Go", mime: "text/x-go", mode: "go", ext: ["go"]},
    {name: "Groovy", mime: "text/x-groovy", mode: "groovy", ext: ["groovy", "gradle"], file: /^Jenkinsfile$/},
    {name: "HAML", mime: "text/x-haml", mode: "haml", ext: ["haml"]},
    {name: "Haskell", mime: "text/x-haskell", mode: "haskell", ext: ["hs"]},
    {name: "Haskell (Literate)", mime: "text/x-literate-haskell", mode: "haskell-literate", ext: ["lhs"]},
    {name: "Haxe", mime: "text/x-haxe", mode: "haxe", ext: ["hx"]},
    {name: "HXML", mime: "text/x-hxml", mode: "haxe", ext: ["hxml"]},
    {name: "ASP.NET", mime: "application/x-aspx", mode: "htmlembedded", ext: ["aspx"], alias: ["asp", "aspx"]},
    {name: "HTML", mime: "text/html", mode: "htmlmixed", ext: ["html", "htm", "handlebars", "hbs"], alias: ["xhtml"]},
    {name: "HTTP", mime: "message/http", mode: "http"},
    {name: "IDL", mime: "text/x-idl", mode: "idl", ext: ["pro"]},
    {name: "Pug", mime: "text/x-pug", mode: "pug", ext: ["jade", "pug"], alias: ["jade"]},
    {name: "Java", mime: "text/x-java", mode: "clike", ext: ["java"]},
    {name: "Java Server Pages", mime: "application/x-jsp", mode: "htmlembedded", ext: ["jsp"], alias: ["jsp"]},
    {name: "JavaScript", mimes: ["text/javascript", "text/ecmascript", "application/javascript", "application/x-javascript", "application/ecmascript"],
     mode: "javascript", ext: ["js"], alias: ["ecmascript", "js", "node"]},
    {name: "JSON", mimes: ["application/json", "application/x-json"], mode: "javascript", ext: ["json", "map"], alias: ["json5"]},
    {name: "JSON-LD", mime: "application/ld+json", mode: "javascript", ext: ["jsonld"], alias: ["jsonld"]},
    {name: "JSX", mime: "text/jsx", mode: "jsx", ext: ["jsx"]},
    {name: "Jinja2", mime: "text/jinja2", mode: "jinja2", ext: ["j2", "jinja", "jinja2"]},
    {name: "Julia", mime: "text/x-julia", mode: "julia", ext: ["jl"]},
    {name: "Kotlin", mime: "text/x-kotlin", mode: "clike", ext: ["kt"]},
    {name: "LESS", mime: "text/x-less", mode: "css", ext: ["less"]},
    {name: "LiveScript", mime: "text/x-livescript", mode: "livescript", ext: ["ls"], alias: ["ls"]},
    {name: "Lua", mime: "text/x-lua", mode: "lua", ext: ["lua"]},
    {name: "Markdown", mime: "text/x-markdown", mode: "markdown", ext: ["markdown", "md", "mkd"]},
    {name: "mIRC", mime: "text/mirc", mode: "mirc"},
    {name: "MariaDB SQL", mime: "text/x-mariadb", mode: "sql"},
    {name: "Mathematica", mime: "text/x-mathematica", mode: "mathematica", ext: ["m", "nb", "wl", "wls"]},
    {name: "Modelica", mime: "text/x-modelica", mode: "modelica", ext: ["mo"]},
    {name: "MUMPS", mime: "text/x-mumps", mode: "mumps", ext: ["mps"]},
    {name: "MS SQL", mime: "text/x-mssql", mode: "sql"},
    {name: "mbox", mime: "application/mbox", mode: "mbox", ext: ["mbox"]},
    {name: "MySQL", mime: "text/x-mysql", mode: "sql"},
    {name: "Nginx", mime: "text/x-nginx-conf", mode: "nginx", file: /nginx.*\.conf$/i},
    {name: "NSIS", mime: "text/x-nsis", mode: "nsis", ext: ["nsh", "nsi"]},
    {name: "NTriples", mimes: ["application/n-triples", "application/n-quads", "text/n-triples"],
     mode: "ntriples", ext: ["nt", "nq"]},
    {name: "Objective-C", mime: "text/x-objectivec", mode: "clike", ext: ["m"], alias: ["objective-c", "objc"]},
    {name: "Objective-C++", mime: "text/x-objectivec++", mode: "clike", ext: ["mm"], alias: ["objective-c++", "objc++"]},
    {name: "OCaml", mime: "text/x-ocaml", mode: "mllike", ext: ["ml", "mli", "mll", "mly"]},
    {name: "Octave", mime: "text/x-octave", mode: "octave", ext: ["m"]},
    {name: "Oz", mime: "text/x-oz", mode: "oz", ext: ["oz"]},
    {name: "Pascal", mime: "text/x-pascal", mode: "pascal", ext: ["p", "pas"]},
    {name: "PEG.js", mime: "null", mode: "pegjs", ext: ["jsonld"]},
    {name: "Perl", mime: "text/x-perl", mode: "perl", ext: ["pl", "pm"]},
    {name: "PHP", mimes: ["text/x-php", "application/x-httpd-php", "application/x-httpd-php-open"], mode: "php", ext: ["php", "php3", "php4", "php5", "php7", "phtml"]},
    {name: "Pig", mime: "text/x-pig", mode: "pig", ext: ["pig"]},
    {name: "Plain Text", mime: "text/plain", mode: "null", ext: ["txt", "text", "conf", "def", "list", "log"]},
    {name: "PLSQL", mime: "text/x-plsql", mode: "sql", ext: ["pls"]},
    {name: "PostgreSQL", mime: "text/x-pgsql", mode: "sql"},
    {name: "PowerShell", mime: "application/x-powershell", mode: "powershell", ext: ["ps1", "psd1", "psm1"]},
    {name: "Properties files", mime: "text/x-properties", mode: "properties", ext: ["properties", "ini", "in"], alias: ["ini", "properties"]},
    {name: "ProtoBuf", mime: "text/x-protobuf", mode: "protobuf", ext: ["proto"]},
    {name: "Python", mime: "text/x-python", mode: "python", ext: ["BUILD", "bzl", "py", "pyw"], file: /^(BUCK|BUILD)$/},
    {name: "Puppet", mime: "text/x-puppet", mode: "puppet", ext: ["pp"]},
    {name: "Q", mime: "text/x-q", mode: "q", ext: ["q"]},
    {name: "R", mime: "text/x-rsrc", mode: "r", ext: ["r", "R"], alias: ["rscript"]},
    {name: "reStructuredText", mime: "text/x-rst", mode: "rst", ext: ["rst"], alias: ["rst"]},
    {name: "RPM Changes", mime: "text/x-rpm-changes", mode: "rpm"},
    {name: "RPM Spec", mime: "text/x-rpm-spec", mode: "rpm", ext: ["spec"]},
    {name: "Ruby", mime: "text/x-ruby", mode: "ruby", ext: ["rb"], alias: ["jruby", "macruby", "rake", "rb", "rbx"]},
    {name: "Rust", mime: "text/x-rustsrc", mode: "rust", ext: ["rs"]},
    {name: "SAS", mime: "text/x-sas", mode: "sas", ext: ["sas"]},
    {name: "Sass", mime: "text/x-sass", mode: "sass", ext: ["sass"]},
    {name: "Scala", mime: "text/x-scala", mode: "clike", ext: ["scala"]},
    {name: "Scheme", mime: "text/x-scheme", mode: "scheme", ext: ["scm", "ss"]},
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    {name: "Shell", mimes: ["text/x-sh", "application/x-sh"], mode: "shell", ext: ["sh", "ksh", "bash"], alias: ["bash", "sh", "zsh"], file: /^PKGBUILD$/},
    {name: "Sieve", mime: "application/sieve", mode: "sieve", ext: ["siv", "sieve"]},
    {name: "Slim", mimes: ["text/x-slim", "application/x-slim"], mode: "slim", ext: ["slim"]},
    {name: "Smalltalk", mime: "text/x-stsrc", mode: "smalltalk", ext: ["st"]},
    {name: "Smarty", mime: "text/x-smarty", mode: "smarty", ext: ["tpl"]},
    {name: "Solr", mime: "text/x-solr", mode: "solr"},
    {name: "SML", mime: "text/x-sml", mode: "mllike", ext: ["sml", "sig", "fun", "smackspec"]},
    {name: "Soy", mime: "text/x-soy", mode: "soy", ext: ["soy"], alias: ["closure template"]},
    {name: "SPARQL", mime: "application/sparql-query", mode: "sparql", ext: ["rq", "sparql"], alias: ["sparul"]},
    {name: "Spreadsheet", mime: "text/x-spreadsheet", mode: "spreadsheet", alias: ["excel", "formula"]},
    {name: "SQL", mime: "text/x-sql", mode: "sql", ext: ["sql"]},
    {name: "SQLite", mime: "text/x-sqlite", mode: "sql"},
    {name: "Squirrel", mime: "text/x-squirrel", mode: "clike", ext: ["nut"]},
    {name: "Stylus", mime: "text/x-styl", mode: "stylus", ext: ["styl"]},
    {name: "Swift", mime: "text/x-swift", mode: "swift", ext: ["swift"]},
    {name: "sTeX", mime: "text/x-stex", mode: "stex"},
    {name: "LaTeX", mime: "text/x-latex", mode: "stex", ext: ["text", "ltx", "tex"], alias: ["tex"]},
    {name: "SystemVerilog", mime: "text/x-systemverilog", mode: "verilog", ext: ["v", "sv", "svh"]},
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    {name: "Tiki wiki", mime: "text/tiki", mode: "tiki"},
    {name: "TOML", mime: "text/x-toml", mode: "toml", ext: ["toml"]},
    {name: "Tornado", mime: "text/x-tornado", mode: "tornado"},
    {name: "troff", mime: "text/troff", mode: "troff", ext: ["1", "2", "3", "4", "5", "6", "7", "8", "9"]},
    {name: "TTCN", mime: "text/x-ttcn", mode: "ttcn", ext: ["ttcn", "ttcn3", "ttcnpp"]},
    {name: "TTCN_CFG", mime: "text/x-ttcn-cfg", mode: "ttcn-cfg", ext: ["cfg"]},
    {name: "Turtle", mime: "text/turtle", mode: "turtle", ext: ["ttl"]},
    {name: "TypeScript", mime: "application/typescript", mode: "javascript", ext: ["ts"], alias: ["ts"]},
    {name: "TypeScript-JSX", mime: "text/typescript-jsx", mode: "jsx", ext: ["tsx"], alias: ["tsx"]},
    {name: "Twig", mime: "text/x-twig", mode: "twig"},
    {name: "Web IDL", mime: "text/x-webidl", mode: "webidl", ext: ["webidl"]},
    {name: "VB.NET", mime: "text/x-vb", mode: "vb", ext: ["vb"]},
    {name: "VBScript", mime: "text/vbscript", mode: "vbscript", ext: ["vbs"]},
    {name: "Velocity", mime: "text/velocity", mode: "velocity", ext: ["vtl"]},
    {name: "Verilog", mime: "text/x-verilog", mode: "verilog", ext: ["v"]},
    {name: "VHDL", mime: "text/x-vhdl", mode: "vhdl", ext: ["vhd", "vhdl"]},
    {name: "Vue.js Component", mimes: ["script/x-vue", "text/x-vue"], mode: "vue", ext: ["vue"]},
    {name: "XML", mimes: ["application/xml", "text/xml"], mode: "xml", ext: ["xml", "xsl", "xsd", "svg"], alias: ["rss", "wsdl", "xsd"]},
    {name: "XQuery", mime: "application/xquery", mode: "xquery", ext: ["xy", "xquery"]},
    {name: "Yacas", mime: "text/x-yacas", mode: "yacas", ext: ["ys"]},
    {name: "YAML", mimes: ["text/x-yaml", "text/yaml"], mode: "yaml", ext: ["yaml", "yml"], alias: ["yml"]},
    {name: "Z80", mime: "text/x-z80", mode: "z80", ext: ["z80"]},
    {name: "mscgen", mime: "text/x-mscgen", mode: "mscgen", ext: ["mscgen", "mscin", "msc"]},
    {name: "xu", mime: "text/x-xu", mode: "mscgen", ext: ["xu"]},
    {name: "msgenny", mime: "text/x-msgenny", mode: "mscgen", ext: ["msgenny"]},
    {name: "WebAssembly", mime: "text/webassembly", mode: "wast", ext: ["wat", "wast"]},
  ];
  // Ensure all modes have a mime property for backwards compatibility
  for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
    var info = CodeMirror.modeInfo[i];
    if (info.mimes) info.mime = info.mimes[0];
  }

  CodeMirror.findModeByMIME = function(mime) {
    mime = mime.toLowerCase();
    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
      var info = CodeMirror.modeInfo[i];
      if (info.mime == mime) return info;
      if (info.mimes) for (var j = 0; j < info.mimes.length; j++)
        if (info.mimes[j] == mime) return info;
    }
    if (/\+xml$/.test(mime)) return CodeMirror.findModeByMIME("application/xml")
    if (/\+json$/.test(mime)) return CodeMirror.findModeByMIME("application/json")
  };

  CodeMirror.findModeByExtension = function(ext) {
    ext = ext.toLowerCase();
    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
      var info = CodeMirror.modeInfo[i];
      if (info.ext) for (var j = 0; j < info.ext.length; j++)
        if (info.ext[j] == ext) return info;
    }
  };

  CodeMirror.findModeByFileName = function(filename) {
    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
      var info = CodeMirror.modeInfo[i];
      if (info.file && info.file.test(filename)) return info;
    }
    var dot = filename.lastIndexOf(".");
    var ext = dot > -1 && filename.substring(dot + 1, filename.length);
    if (ext) return CodeMirror.findModeByExtension(ext);
  };

  CodeMirror.findModeByName = function(name) {
    name = name.toLowerCase();
    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
      var info = CodeMirror.modeInfo[i];
      if (info.name.toLowerCase() == name) return info;
      if (info.alias) for (var j = 0; j < info.alias.length; j++)
        if (info.alias[j].toLowerCase() == name) return info;
    }
  };
});


/***/ }),

/***/ "9Bee":
/*!*********************************************************!*\
  !*** ./src/components/RenderHtml/index.tsx + 1 modules ***!
  \*********************************************************/
/*! exports provided: default */
/*! exports used: default */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/objectSpread2.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/slicedToArray.js */
/*! ModuleConcatenation bailout: Cannot concat with ./src/components/PreviewAll/index.tsx */
/*! ModuleConcatenation bailout: Cannot concat with ./src/utils/env.ts */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/hls.js/dist/hls.js (<- Module is not an ECMAScript module) */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/katex/dist/katex.js (<- Module is not an ECMAScript module) */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/marked/lib/marked.js (<- Module is not an ECMAScript module) */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/marked/src/helpers.js (<- Module is not an ECMAScript module) */
/*! ModuleConcatenation bailout: Cannot concat with external "window.React" (<- Module is not an ECMAScript module) */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";

// EXTERNAL MODULE: ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/objectSpread2.js
var objectSpread2 = __webpack_require__("k1fw");

// EXTERNAL MODULE: ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/slicedToArray.js + 1 modules
var slicedToArray = __webpack_require__("tJVT");

// EXTERNAL MODULE: external "window.React"
var external_window_React_ = __webpack_require__("cDcd");
var external_window_React_default = /*#__PURE__*/__webpack_require__.n(external_window_React_);

// EXTERNAL MODULE: ./node_modules/katex/dist/katex.min.css
var katex_min = __webpack_require__("vg9a");

// EXTERNAL MODULE: ./node_modules/marked/lib/marked.js
var marked = __webpack_require__("DlQD");
var marked_default = /*#__PURE__*/__webpack_require__.n(marked);

// EXTERNAL MODULE: ./node_modules/marked/src/helpers.js
var helpers = __webpack_require__("rUJ1");

// CONCATENATED MODULE: ./src/utils/marked.ts




function indentCodeCompensation(raw, text) {
  var matchIndentToCode = raw.match(/^(\s+)(?:```)/);

  if (matchIndentToCode === null) {
    return text;
  }

  var indentToCode = matchIndentToCode[1];
  return text.split('\n').map(function (node) {
    var matchIndentInNode = node.match(/^\s+/);

    if (matchIndentInNode === null) {
      return node;
    }

    var _matchIndentInNode = Object(slicedToArray["a" /* default */])(matchIndentInNode, 1),
        indentInNode = _matchIndentInNode[0];

    if (indentInNode.length >= indentToCode.length) {
      return node.slice(indentToCode.length);
    }

    return node;
  }).join('\n');
}

//兼容之前的 ##标题式写法
var toc = [];
var ctx = ["<ul>"];
var renderer = new marked_default.a.Renderer();
var headingRegex = /^ *(#{1,6}) *([^\n]+?) *(?:#+ *)?(?:\n+|$)/;
function cleanToc() {
  toc.length = 0;
  ctx = ["<ul>"];
}
var lines = {
  overflow: "hidden",
  WebkitBoxOrient: "vertical",
  display: "-webkit-box",
  WebkitLineClamp: 2
};

function buildToc(coll, k, level, ctx) {
  if (k >= coll.length || coll[k].level <= level) {
    return k;
  }

  var node = coll[k];
  ctx.push("<li><a href='#" + node.anchor + "'>" + node.text + "</a>");
  k++;
  var childCtx = [];
  k = buildToc(coll, k, node.level, childCtx);

  if (childCtx.length > 0) {
    ctx.push("<ul>");
    childCtx.forEach(function (idm) {
      ctx.push(idm);
    });
    ctx.push("</ul>");
  }

  ctx.push("</li>");
  k = buildToc(coll, k, level, ctx);
  return k;
}

function getTocContent() {
  buildToc(toc, 0, 0, ctx);
  ctx.push("</ul>");
  return ctx.join("");
}
var tokenizer = {
  heading: function heading(src) {
    var cap = headingRegex.exec(src);

    if (cap) {
      return {
        type: 'heading',
        raw: cap[0],
        depth: cap[1].length,
        text: cap[2]
      };
    }
  },
  fences: function fences(src) {
    var cap = this.rules.block.fences.exec(src);

    if (cap) {
      var raw = cap[0];
      var text = indentCodeCompensation(raw, cap[3] || '');
      var lang = cap[2] ? cap[2].trim() : cap[2];

      if (['latex', 'katex', 'math'].indexOf(lang) >= 0) {
        var id = next_id();
        var expression = text;
        text = id;
        marked_math_expressions[id] = {
          type: 'block',
          expression: expression
        };
      }

      return {
        type: 'code',
        raw: raw,
        lang: lang,
        text: text
      };
    }
  }
};
var latexRegex = /(?:\${2})([^\n`]+?)(?:\${2})/gi;
var katex_count = 0;

var next_id = function next_id() {
  return "__special_katext_id_".concat(katex_count++, "__");
};

var marked_math_expressions = {};
function getMathExpressions() {
  return marked_math_expressions;
}
function resetMathExpressions() {
  katex_count = 0;
  marked_math_expressions = {};
}

function replace_math_with_ids(text) {
  text = text.replace(latexRegex, function (_match, expression) {
    var id = next_id();
    marked_math_expressions[id] = {
      type: 'inline',
      expression: expression
    };
    return id;
  });
  return text;
}

var original_listitem = renderer.listitem;

renderer.listitem = function (text) {
  return original_listitem(replace_math_with_ids(text));
};

var original_paragraph = renderer.paragraph;

renderer.paragraph = function (text) {
  return original_paragraph(replace_math_with_ids(text));
};

var original_tablecell = renderer.tablecell;

renderer.tablecell = function (content, flags) {
  return original_tablecell(replace_math_with_ids(content), flags);
};

renderer.code = function (code, infostring, escaped) {
  var lang = (infostring || '').match(/\S*/)[0];

  if (!lang) {
    return '<pre class="prettyprint linenums"><code>' + (escaped ? code : Object(helpers["escape"])(code, true)) + '</code></pre>';
  }

  if (['latex', 'katex', 'math'].indexOf(lang) >= 0) {
    return "<p class='editormd-tex'>".concat(code, "</p>");
  } else {
    return "<pre class=\"prettyprint linenums\"><code class=\"language-".concat(infostring, "\">").concat(escaped ? code : Object(helpers["escape"])(code, true), "</code></pre>\n");
  }
};

renderer.heading = function (text, level, raw) {
  var anchor = this.options.headerPrefix + raw.toLowerCase().replace(/[^\w\\u4e00-\\u9fa5]]+/g, '-');
  toc.push({
    anchor: anchor,
    level: level,
    text: text
  });
  return '<h' + level + ' id="' + anchor + '">' + text + '</h' + level + '>';
};

marked_default.a.setOptions({
  silent: true,
  gfm: true,
  pedantic: false
});
marked_default.a.use({
  tokenizer: tokenizer,
  renderer: renderer
});
/* harmony default export */ var utils_marked = (marked_default.a);
// EXTERNAL MODULE: ./node_modules/code-prettify/src/prettify.js
var prettify = __webpack_require__("SJMd");

// EXTERNAL MODULE: ./node_modules/hls.js/dist/hls.js
var dist_hls = __webpack_require__("ulZh");
var hls_default = /*#__PURE__*/__webpack_require__.n(dist_hls);

// EXTERNAL MODULE: ./src/utils/env.ts + 1 modules
var env = __webpack_require__("m3rI");

// EXTERNAL MODULE: ./node_modules/katex/dist/katex.js
var katex = __webpack_require__("Oy/b");

// EXTERNAL MODULE: ./src/components/PreviewAll/index.tsx
var PreviewAll = __webpack_require__("p5ED");

// CONCATENATED MODULE: ./src/components/RenderHtml/index.tsx










var preRegex = /<pre[^>]*>/g;

function _unescape(str) {
  var div = document.createElement('div');
  div.innerHTML = str;
  return div.childNodes.length === 0 ? '' : div.childNodes[0].nodeValue;
}

/* harmony default export */ var RenderHtml = __webpack_exports__["a"] = (function (_ref) {
  var _ref$value = _ref.value,
      value = _ref$value === void 0 ? '' : _ref$value,
      className = _ref.className,
      showTextOnly = _ref.showTextOnly,
      showLines = _ref.showLines,
      _ref$style = _ref.style,
      style = _ref$style === void 0 ? {} : _ref$style,
      _ref$stylesPrev = _ref.stylesPrev,
      stylesPrev = _ref$stylesPrev === void 0 ? {} : _ref$stylesPrev;
  var str = String(value);

  var _useState = Object(external_window_React_["useState"])(""),
      _useState2 = Object(slicedToArray["a" /* default */])(_useState, 2),
      data = _useState2[0],
      setData = _useState2[1];

  var html = Object(external_window_React_["useMemo"])(function () {
    try {
      var reg = /\(\s+\/api\/attachments\/|\(\/api\/attachments\/|\(\/attachments\/download\//g;
      var reg2 = /\"\/api\/attachments\/|\"\/attachments\/download\//g;
      var reg3 = /\(\s+\/files\/uploads\/|\"\/files\/uploads\//g;
      str = str.replace(reg, "(" + env["a" /* default */].API_SERVER + "/api/attachments/").replace(reg2, '"' + env["a" /* default */].API_SERVER + "/api/attachments/").replace(reg3, '"' + env["a" /* default */].API_SERVER + "/files/uploads/").replaceAll("http://video.educoder", "https://video.educoder").replaceAll("http://www.educoder.net/api", "https://data.educoder.net/api").replaceAll("https://www.educoder.net/api", "https://data.educoder.net/api").replace(/\r\n/g, "\n");
      str = str.replace(new RegExp("(?<!\\n)\\n(?!\\n)", "g"), "  \n");
    } catch (e) {}

    ;
    var rs = utils_marked(str);
    var math_expressions = getMathExpressions();

    if (str.match(/\[TOC\]/)) {
      rs = rs.replace('<p>[TOC]</p>', getTocContent());
      cleanToc();
    }

    rs = rs.replace(/(__special_katext_id_\d+__)/g, function (_match, capture) {
      var _math_expressions$cap = math_expressions[capture],
          type = _math_expressions$cap.type,
          expression = _math_expressions$cap.expression;
      return Object(katex["renderToString"])(_unescape(expression) || '', {
        displayMode: type === 'block',
        throwOnError: false,
        output: 'html'
      });
    });
    rs = rs.replace(/▁/g, '▁▁▁');
    resetMathExpressions(); // return dompurify.sanitize(rs)

    if (showTextOnly) {
      var dom = document.createElement('div');
      dom.innerHTML = rs;
      return dom.innerText;
    }

    setTimeout(function () {
      return onLoad();
    }, 500);
    return rs;
  }, [str]);
  var el = Object(external_window_React_["useRef"])();
  lines['WebkitLineClamp'] = showLines;

  if (showLines) {
    style = Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, style), lines);
  }

  function onAncherHandler(e) {
    var target = e.target;

    if (target.tagName.toUpperCase() === 'A') {
      var ancher = target.getAttribute('href');

      if (ancher.indexOf("office") > -1) {
        e.preventDefault();
        setData(ancher);
      } else if (ancher.startsWith('#')) {
        e.preventDefault();
        var viewEl = document.getElementById(ancher.replace('#', ''));

        if (viewEl) {
          viewEl.scrollIntoView(true);
        }
      }
    }
  }

  var onLoad = function onLoad() {
    var _el$current;

    var videoElement = (_el$current = el.current) === null || _el$current === void 0 ? void 0 : _el$current.querySelectorAll('video');
    videoElement === null || videoElement === void 0 ? void 0 : videoElement.forEach(function (item) {
      item.oncontextmenu = function () {
        return false;
      };

      if (item.src.indexOf('.m3u8') > -1) {
        if (item.canPlayType('application/vnd.apple.mpegurl')) {} else if (hls_default.a.isSupported()) {
          var hls = new hls_default.a();
          hls.loadSource(item.src);
          hls.attachMedia(item);
        }
      }
    });
  };

  Object(external_window_React_["useEffect"])(function () {
    if (el.current && html) {
      if (html.match(preRegex)) {
        window.PR.prettyPrint();
      }
    }

    if (el.current) {
      el.current.addEventListener('click', onAncherHandler);
      return function () {
        el.current.removeEventListener('click', onAncherHandler);
        resetMathExpressions();
        cleanToc();
      };
    }
  }, [html, el.current, onAncherHandler]);
  return /*#__PURE__*/external_window_React_default.a.createElement(external_window_React_default.a.Fragment, null, /*#__PURE__*/external_window_React_default.a.createElement("div", {
    ref: el,
    style: Object(objectSpread2["a" /* default */])({}, style),
    className: "".concat(className ? className : '', " markdown-body "),
    dangerouslySetInnerHTML: {
      __html: html
    }
  }), /*#__PURE__*/external_window_React_default.a.createElement(PreviewAll["a" /* default */], {
    close: true,
    data: data,
    type: !!(data !== null && data !== void 0 && data.length) ? "office" : "",
    style: Object(objectSpread2["a" /* default */])({}, stylesPrev),
    onClose: function onClose() {
      return setData("");
    }
  }));
});

/***/ }),

/***/ "9VGf":
/*!****************************************!*\
  !*** ./src/components/useInterval.tsx ***!
  \****************************************/
/*! exports provided: default */
/*! exports used: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return useInterval; });
/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! react */ "cDcd");
/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(react__WEBPACK_IMPORTED_MODULE_0__);

function useInterval(callback, delay) {
  var savedCallback = Object(react__WEBPACK_IMPORTED_MODULE_0__["useRef"])(); // 保存新回调

  Object(react__WEBPACK_IMPORTED_MODULE_0__["useEffect"])(function () {
    savedCallback.current = callback;
  }); // 建立 interval

  Object(react__WEBPACK_IMPORTED_MODULE_0__["useEffect"])(function () {
    function tick() {
      savedCallback.current();
    }

    if (delay !== null) {
      var id = setInterval(tick, delay);
      return function () {
        return clearInterval(id);
      };
    }
  }, [delay]);
}

/***/ }),

/***/ "BU3w":
/*!***************************************************!*\
  !*** ./node_modules/rc-util/es/Dom/dynamicCSS.js ***!
  \***************************************************/
/*! exports provided: injectCSS, updateCSS */
/*! exports used: updateCSS */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* unused harmony export injectCSS */
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return updateCSS; });
/* harmony import */ var _canUseDom__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./canUseDom */ "MNnm");

var MARK_KEY = "rc-util-key";

function getContainer(option) {
  if (option.attachTo) {
    return option.attachTo;
  }

  var head = document.querySelector('head');
  return head || document.body;
}

function injectCSS(css) {
  var _option$csp;

  var option = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

  if (!Object(_canUseDom__WEBPACK_IMPORTED_MODULE_0__[/* default */ "a"])()) {
    return null;
  }

  var styleNode = document.createElement('style');

  if ((_option$csp = option.csp) === null || _option$csp === void 0 ? void 0 : _option$csp.nonce) {
    var _option$csp2;

    styleNode.nonce = (_option$csp2 = option.csp) === null || _option$csp2 === void 0 ? void 0 : _option$csp2.nonce;
  }

  styleNode.innerHTML = css;
  var container = getContainer(option);
  var firstChild = container.firstChild;

  if (option.prepend && container.prepend) {
    // Use `prepend` first
    container.prepend(styleNode);
  } else if (option.prepend && firstChild) {
    // Fallback to `insertBefore` like IE not support `prepend`
    container.insertBefore(styleNode, firstChild);
  } else {
    container.appendChild(styleNode);
  }

  return styleNode;
}
var containerCache = new Map();
function updateCSS(css, key) {
  var option = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
  var container = getContainer(option); // Get real parent

  if (!containerCache.has(container)) {
    var placeholderStyle = injectCSS('', option);
    var parentNode = placeholderStyle.parentNode;
    containerCache.set(container, parentNode);
    parentNode.removeChild(placeholderStyle);
  }

  var existNode = Array.from(containerCache.get(container).children).find(function (node) {
    return node.tagName === 'STYLE' && node[MARK_KEY] === key;
  });

  if (existNode) {
    var _option$csp3, _option$csp4;

    if (((_option$csp3 = option.csp) === null || _option$csp3 === void 0 ? void 0 : _option$csp3.nonce) && existNode.nonce !== ((_option$csp4 = option.csp) === null || _option$csp4 === void 0 ? void 0 : _option$csp4.nonce)) {
      var _option$csp5;

      existNode.nonce = (_option$csp5 = option.csp) === null || _option$csp5 === void 0 ? void 0 : _option$csp5.nonce;
    }

    if (existNode.innerHTML !== css) {
      existNode.innerHTML = css;
    }

    return existNode;
  }

  var newNode = injectCSS(css, option);
  newNode[MARK_KEY] = key;
  return newNode;
}

/***/ }),

/***/ "Bd2K":
/*!********************************************************!*\
  !*** ./node_modules/codemirror/addon/edit/closetag.js ***!
  \********************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://codemirror.net/LICENSE

/**
 * Tag-closer extension for CodeMirror.
 *
 * This extension adds an "autoCloseTags" option that can be set to
 * either true to get the default behavior, or an object to further
 * configure its behavior.
 *
 * These are supported options:
 *
 * `whenClosing` (default true)
 *   Whether to autoclose when the '/' of a closing tag is typed.
 * `whenOpening` (default true)
 *   Whether to autoclose the tag when the final '>' of an opening
 *   tag is typed.
 * `dontCloseTags` (default is empty tags for HTML, none for XML)
 *   An array of tag names that should not be autoclosed.
 * `indentTags` (default is block tags for HTML, none for XML)
 *   An array of tag names that should, when opened, cause a
 *   blank line to be added inside the tag, and the blank line and
 *   closing line to be indented.
 * `emptyTags` (default is none)
 *   An array of XML tag names that should be autoclosed with '/>'.
 *
 * See demos/closetag.html for a usage example.
 */

(function(mod) {
  if (true) // CommonJS
    mod(__webpack_require__(/*! ../../lib/codemirror */ "VrN/"), __webpack_require__(/*! ../fold/xml-fold */ "osHv"));
  else {}
})(function(CodeMirror) {
  CodeMirror.defineOption("autoCloseTags", false, function(cm, val, old) {
    if (old != CodeMirror.Init && old)
      cm.removeKeyMap("autoCloseTags");
    if (!val) return;
    var map = {name: "autoCloseTags"};
    if (typeof val != "object" || val.whenClosing !== false)
      map["'/'"] = function(cm) { return autoCloseSlash(cm); };
    if (typeof val != "object" || val.whenOpening !== false)
      map["'>'"] = function(cm) { return autoCloseGT(cm); };
    cm.addKeyMap(map);
  });

  var htmlDontClose = ["area", "base", "br", "col", "command", "embed", "hr", "img", "input", "keygen", "link", "meta", "param",
                       "source", "track", "wbr"];
  var htmlIndent = ["applet", "blockquote", "body", "button", "div", "dl", "fieldset", "form", "frameset", "h1", "h2", "h3", "h4",
                    "h5", "h6", "head", "html", "iframe", "layer", "legend", "object", "ol", "p", "select", "table", "ul"];

  function autoCloseGT(cm) {
    if (cm.getOption("disableInput")) return CodeMirror.Pass;
    var ranges = cm.listSelections(), replacements = [];
    var opt = cm.getOption("autoCloseTags");
    for (var i = 0; i < ranges.length; i++) {
      if (!ranges[i].empty()) return CodeMirror.Pass;
      var pos = ranges[i].head, tok = cm.getTokenAt(pos);
      var inner = CodeMirror.innerMode(cm.getMode(), tok.state), state = inner.state;
      var tagInfo = inner.mode.xmlCurrentTag && inner.mode.xmlCurrentTag(state)
      var tagName = tagInfo && tagInfo.name
      if (!tagName) return CodeMirror.Pass

      var html = inner.mode.configuration == "html";
      var dontCloseTags = (typeof opt == "object" && opt.dontCloseTags) || (html && htmlDontClose);
      var indentTags = (typeof opt == "object" && opt.indentTags) || (html && htmlIndent);

      if (tok.end > pos.ch) tagName = tagName.slice(0, tagName.length - tok.end + pos.ch);
      var lowerTagName = tagName.toLowerCase();
      // Don't process the '>' at the end of an end-tag or self-closing tag
      if (!tagName ||
          tok.type == "string" && (tok.end != pos.ch || !/[\"\']/.test(tok.string.charAt(tok.string.length - 1)) || tok.string.length == 1) ||
          tok.type == "tag" && tagInfo.close ||
          tok.string.indexOf("/") == (pos.ch - tok.start - 1) || // match something like <someTagName />
          dontCloseTags && indexOf(dontCloseTags, lowerTagName) > -1 ||
          closingTagExists(cm, inner.mode.xmlCurrentContext && inner.mode.xmlCurrentContext(state) || [], tagName, pos, true))
        return CodeMirror.Pass;

      var emptyTags = typeof opt == "object" && opt.emptyTags;
      if (emptyTags && indexOf(emptyTags, tagName) > -1) {
        replacements[i] = { text: "/>", newPos: CodeMirror.Pos(pos.line, pos.ch + 2) };
        continue;
      }

      var indent = indentTags && indexOf(indentTags, lowerTagName) > -1;
      replacements[i] = {indent: indent,
                         text: ">" + (indent ? "\n\n" : "") + "</" + tagName + ">",
                         newPos: indent ? CodeMirror.Pos(pos.line + 1, 0) : CodeMirror.Pos(pos.line, pos.ch + 1)};
    }

    var dontIndentOnAutoClose = (typeof opt == "object" && opt.dontIndentOnAutoClose);
    for (var i = ranges.length - 1; i >= 0; i--) {
      var info = replacements[i];
      cm.replaceRange(info.text, ranges[i].head, ranges[i].anchor, "+insert");
      var sel = cm.listSelections().slice(0);
      sel[i] = {head: info.newPos, anchor: info.newPos};
      cm.setSelections(sel);
      if (!dontIndentOnAutoClose && info.indent) {
        cm.indentLine(info.newPos.line, null, true);
        cm.indentLine(info.newPos.line + 1, null, true);
      }
    }
  }

  function autoCloseCurrent(cm, typingSlash) {
    var ranges = cm.listSelections(), replacements = [];
    var head = typingSlash ? "/" : "</";
    var opt = cm.getOption("autoCloseTags");
    var dontIndentOnAutoClose = (typeof opt == "object" && opt.dontIndentOnSlash);
    for (var i = 0; i < ranges.length; i++) {
      if (!ranges[i].empty()) return CodeMirror.Pass;
      var pos = ranges[i].head, tok = cm.getTokenAt(pos);
      var inner = CodeMirror.innerMode(cm.getMode(), tok.state), state = inner.state;
      if (typingSlash && (tok.type == "string" || tok.string.charAt(0) != "<" ||
                          tok.start != pos.ch - 1))
        return CodeMirror.Pass;
      // Kludge to get around the fact that we are not in XML mode
      // when completing in JS/CSS snippet in htmlmixed mode. Does not
      // work for other XML embedded languages (there is no general
      // way to go from a mixed mode to its current XML state).
      var replacement, mixed = inner.mode.name != "xml" && cm.getMode().name == "htmlmixed"
      if (mixed && inner.mode.name == "javascript") {
        replacement = head + "script";
      } else if (mixed && inner.mode.name == "css") {
        replacement = head + "style";
      } else {
        var context = inner.mode.xmlCurrentContext && inner.mode.xmlCurrentContext(state)
        if (!context || (context.length && closingTagExists(cm, context, context[context.length - 1], pos)))
          return CodeMirror.Pass;
        replacement = head + context[context.length - 1]
      }
      if (cm.getLine(pos.line).charAt(tok.end) != ">") replacement += ">";
      replacements[i] = replacement;
    }
    cm.replaceSelections(replacements);
    ranges = cm.listSelections();
    if (!dontIndentOnAutoClose) {
        for (var i = 0; i < ranges.length; i++)
            if (i == ranges.length - 1 || ranges[i].head.line < ranges[i + 1].head.line)
                cm.indentLine(ranges[i].head.line);
    }
  }

  function autoCloseSlash(cm) {
    if (cm.getOption("disableInput")) return CodeMirror.Pass;
    return autoCloseCurrent(cm, true);
  }

  CodeMirror.commands.closeTag = function(cm) { return autoCloseCurrent(cm); };

  function indexOf(collection, elt) {
    if (collection.indexOf) return collection.indexOf(elt);
    for (var i = 0, e = collection.length; i < e; ++i)
      if (collection[i] == elt) return i;
    return -1;
  }

  // If xml-fold is loaded, we use its functionality to try and verify
  // whether a given tag is actually unclosed.
  function closingTagExists(cm, context, tagName, pos, newTag) {
    if (!CodeMirror.scanForClosingTag) return false;
    var end = Math.min(cm.lastLine() + 1, pos.line + 500);
    var nextClose = CodeMirror.scanForClosingTag(cm, pos, null, end);
    if (!nextClose || nextClose.tag != tagName) return false;
    // If the immediate wrapping context contains onCx instances of
    // the same tag, a closing tag only exists if there are at least
    // that many closing tags of that type following.
    var onCx = newTag ? 1 : 0
    for (var i = context.length - 1; i >= 0; i--) {
      if (context[i] == tagName) ++onCx
      else break
    }
    pos = nextClose.to;
    for (var i = 1; i < onCx; i++) {
      var next = CodeMirror.scanForClosingTag(cm, pos, null, end);
      if (!next || next.tag != tagName) return false;
      pos = next.to;
    }
    return true;
  }
});


/***/ }),

/***/ "BdwD":
/*!*****************************************!*\
  !*** ./src/components/NoData/index.tsx ***!
  \*****************************************/
/*! exports provided: default */
/*! exports used: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony import */ var antd_es_button_style__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! antd/es/button/style */ "+L6B");
/* harmony import */ var antd_es_button__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! antd/es/button */ "2/Rp");
/* harmony import */ var _Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_extends__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/extends */ "0Owb");
/* harmony import */ var _Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_objectSpread2__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/objectSpread2 */ "k1fw");
/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! react */ "cDcd");
/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_4___default = /*#__PURE__*/__webpack_require__.n(react__WEBPACK_IMPORTED_MODULE_4__);
/* harmony import */ var _assets_images_icons_nodata_png__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! @/assets/images/icons/nodata.png */ "FOrL");
/* harmony import */ var _assets_images_icons_nodata_png__WEBPACK_IMPORTED_MODULE_5___default = /*#__PURE__*/__webpack_require__.n(_assets_images_icons_nodata_png__WEBPACK_IMPORTED_MODULE_5__);







var noData = function noData(_ref) {
  var _ref$buttonProps = _ref.buttonProps,
      buttonProps = _ref$buttonProps === void 0 ? {} : _ref$buttonProps,
      _ref$styles = _ref.styles,
      styles = _ref$styles === void 0 ? {} : _ref$styles,
      customText = _ref.customText,
      ButtonText = _ref.ButtonText,
      ButtonClick = _ref.ButtonClick,
      Buttonclass = _ref.Buttonclass,
      ButtonTwo = _ref.ButtonTwo;
  return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_4___default.a.createElement("section", {
    className: "tc animated fadeIn",
    style: Object(_Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_objectSpread2__WEBPACK_IMPORTED_MODULE_3__[/* default */ "a"])(Object(_Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_objectSpread2__WEBPACK_IMPORTED_MODULE_3__[/* default */ "a"])({}, {
      color: '#999',
      margin: '200px auto'
    }), styles)
  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_4___default.a.createElement("img", {
    src: _assets_images_icons_nodata_png__WEBPACK_IMPORTED_MODULE_5___default.a
  }), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_4___default.a.createElement("p", {
    className: "mt20 font14"
  }, customText || '暂时还没有相关数据哦!'), ButtonText && /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_4___default.a.createElement(antd_es_button__WEBPACK_IMPORTED_MODULE_1__[/* default */ "a"], Object(_Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_extends__WEBPACK_IMPORTED_MODULE_2__[/* default */ "a"])({
    className: Buttonclass,
    onClick: ButtonClick
  }, buttonProps), ButtonText), ButtonTwo && ButtonTwo);
};

/* harmony default export */ __webpack_exports__["a"] = (noData);

/***/ }),

/***/ "BjJ7":
/*!*********************************!*\
  !*** ./src/pages/tasks/util.js ***!
  \*********************************/
/*! exports provided: isCompileOk, getTreeData, processTreeData, debounce, isProd, apiPref */
/*! exports used: apiPref, debounce, getTreeData, isCompileOk, processTreeData */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "d", function() { return isCompileOk; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "c", function() { return getTreeData; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "e", function() { return processTreeData; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "b", function() { return debounce; });
/* unused harmony export isProd */
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return apiPref; });
/* harmony import */ var _utils_env__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! @/utils/env */ "m3rI");

function isCompileOk(rs) {
  var flag = true;

  if (rs.length > 0) {
    for (var i = 0; i < rs.length; i++) {
      if (rs[i].compile_success == 0 || !rs[i].compile_success) {
        flag = false;
        break;
      }
    }
  } else {
    flag = false;
  }

  return flag;
}
function getTreeData(data) {
  var parentKey = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '';
  var result = [];

  for (var i = 0; i < data.length; i++) {
    var item = data[i];
    var key = parentKey ? "".concat(parentKey, "/").concat(item.name) : "".concat(item.name);
    result.push({
      title: item.name,
      isLeaf: item.type === 'tree' ? false : true,
      key: key
    });
  }

  return result;
}
function processTreeData(repos, key, newData) {
  for (var i = 0; i < repos.length; i++) {
    var item = repos[i];

    if (item.key === key) {
      item.children = newData;
      break;
    }

    if (item.children) {
      processTreeData(item.children, key, newData);
    }
  }

  return repos;
}
function debounce(func, wait, immediate) {
  var timeout;
  return function () {
    var context = this,
        args = arguments;

    var later = function later() {
      timeout = null;
      if (!immediate) func.apply(context, args);
    };

    var callNow = immediate && !timeout;
    clearTimeout(timeout);
    timeout = setTimeout(later, wait);
    if (callNow) func.apply(context, args);
  };
}
var isProd = true;
var apiPref = _utils_env__WEBPACK_IMPORTED_MODULE_0__[/* default */ "a"].API_SERVER; // export const isProd =
//   window.location.href.indexOf('test-') > 0 ||
//   window.location.href.indexOf('localhost') > 0
//     ? false
//     : true;
// export const apiPref = isProd
//   ? 'https://www.educoder.net'
//   : 'https://test-newweb.educoder.net';

/***/ }),

/***/ "C+DQ":
/*!*********************************************************!*\
  !*** ./src/components/markdown-editor/css/iconfont.css ***!
  \*********************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

// extracted by mini-css-extract-plugin

/***/ }),

/***/ "DlQD":
/*!*******************************************!*\
  !*** ./node_modules/marked/lib/marked.js ***!
  \*******************************************/
/*! no static exports found */
/*! exports used: default */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

/**
 * marked - a markdown parser
 * Copyright (c) 2011-2020, Christopher Jeffrey. (MIT Licensed)
 * https://github.com/markedjs/marked
 */

/**
 * DO NOT EDIT THIS FILE
 * The code in this file is generated from files in ./src/
 */

(function (global, factory) {
   true ? module.exports = factory() :
  undefined;
}(this, (function () { 'use strict';

  function _defineProperties(target, props) {
    for (var i = 0; i < props.length; i++) {
      var descriptor = props[i];
      descriptor.enumerable = descriptor.enumerable || false;
      descriptor.configurable = true;
      if ("value" in descriptor) descriptor.writable = true;
      Object.defineProperty(target, descriptor.key, descriptor);
    }
  }

  function _createClass(Constructor, protoProps, staticProps) {
    if (protoProps) _defineProperties(Constructor.prototype, protoProps);
    if (staticProps) _defineProperties(Constructor, staticProps);
    return Constructor;
  }

  function _unsupportedIterableToArray(o, minLen) {
    if (!o) return;
    if (typeof o === "string") return _arrayLikeToArray(o, minLen);
    var n = Object.prototype.toString.call(o).slice(8, -1);
    if (n === "Object" && o.constructor) n = o.constructor.name;
    if (n === "Map" || n === "Set") return Array.from(o);
    if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen);
  }

  function _arrayLikeToArray(arr, len) {
    if (len == null || len > arr.length) len = arr.length;

    for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];

    return arr2;
  }

  function _createForOfIteratorHelperLoose(o, allowArrayLike) {
    var it;

    if (typeof Symbol === "undefined" || o[Symbol.iterator] == null) {
      if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") {
        if (it) o = it;
        var i = 0;
        return function () {
          if (i >= o.length) return {
            done: true
          };
          return {
            done: false,
            value: o[i++]
          };
        };
      }

      throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
    }

    it = o[Symbol.iterator]();
    return it.next.bind(it);
  }

  function createCommonjsModule(fn, module) {
  	return module = { exports: {} }, fn(module, module.exports), module.exports;
  }

  var defaults = createCommonjsModule(function (module) {
    function getDefaults() {
      return {
        baseUrl: null,
        breaks: false,
        gfm: true,
        headerIds: true,
        headerPrefix: '',
        highlight: null,
        langPrefix: 'language-',
        mangle: true,
        pedantic: false,
        renderer: null,
        sanitize: false,
        sanitizer: null,
        silent: false,
        smartLists: false,
        smartypants: false,
        tokenizer: null,
        walkTokens: null,
        xhtml: false
      };
    }

    function changeDefaults(newDefaults) {
      module.exports.defaults = newDefaults;
    }

    module.exports = {
      defaults: getDefaults(),
      getDefaults: getDefaults,
      changeDefaults: changeDefaults
    };
  });
  var defaults_1 = defaults.defaults;
  var defaults_2 = defaults.getDefaults;
  var defaults_3 = defaults.changeDefaults;

  /**
   * Helpers
   */
  var escapeTest = /[&<>"']/;
  var escapeReplace = /[&<>"']/g;
  var escapeTestNoEncode = /[<>"']|&(?!#?\w+;)/;
  var escapeReplaceNoEncode = /[<>"']|&(?!#?\w+;)/g;
  var escapeReplacements = {
    '&': '&amp;',
    '<': '&lt;',
    '>': '&gt;',
    '"': '&quot;',
    "'": '&#39;'
  };

  var getEscapeReplacement = function getEscapeReplacement(ch) {
    return escapeReplacements[ch];
  };

  function escape(html, encode) {
    if (encode) {
      if (escapeTest.test(html)) {
        return html.replace(escapeReplace, getEscapeReplacement);
      }
    } else {
      if (escapeTestNoEncode.test(html)) {
        return html.replace(escapeReplaceNoEncode, getEscapeReplacement);
      }
    }

    return html;
  }

  var unescapeTest = /&(#(?:\d+)|(?:#x[0-9A-Fa-f]+)|(?:\w+));?/ig;

  function unescape(html) {
    // explicitly match decimal, hex, and named HTML entities
    return html.replace(unescapeTest, function (_, n) {
      n = n.toLowerCase();
      if (n === 'colon') return ':';

      if (n.charAt(0) === '#') {
        return n.charAt(1) === 'x' ? String.fromCharCode(parseInt(n.substring(2), 16)) : String.fromCharCode(+n.substring(1));
      }

      return '';
    });
  }

  var caret = /(^|[^\[])\^/g;

  function edit(regex, opt) {
    regex = regex.source || regex;
    opt = opt || '';
    var obj = {
      replace: function replace(name, val) {
        val = val.source || val;
        val = val.replace(caret, '$1');
        regex = regex.replace(name, val);
        return obj;
      },
      getRegex: function getRegex() {
        return new RegExp(regex, opt);
      }
    };
    return obj;
  }

  var nonWordAndColonTest = /[^\w:]/g;
  var originIndependentUrl = /^$|^[a-z][a-z0-9+.-]*:|^[?#]/i;

  function cleanUrl(sanitize, base, href) {
    if (sanitize) {
      var prot;

      try {
        prot = decodeURIComponent(unescape(href)).replace(nonWordAndColonTest, '').toLowerCase();
      } catch (e) {
        return null;
      }

      if (prot.indexOf('javascript:') === 0 || prot.indexOf('vbscript:') === 0 || prot.indexOf('data:') === 0) {
        return null;
      }
    }

    if (base && !originIndependentUrl.test(href)) {
      href = resolveUrl(base, href);
    }

    try {
      href = encodeURI(href).replace(/%25/g, '%');
    } catch (e) {
      return null;
    }

    return href;
  }

  var baseUrls = {};
  var justDomain = /^[^:]+:\/*[^/]*$/;
  var protocol = /^([^:]+:)[\s\S]*$/;
  var domain = /^([^:]+:\/*[^/]*)[\s\S]*$/;

  function resolveUrl(base, href) {
    if (!baseUrls[' ' + base]) {
      // we can ignore everything in base after the last slash of its path component,
      // but we might need to add _that_
      // https://tools.ietf.org/html/rfc3986#section-3
      if (justDomain.test(base)) {
        baseUrls[' ' + base] = base + '/';
      } else {
        baseUrls[' ' + base] = rtrim(base, '/', true);
      }
    }

    base = baseUrls[' ' + base];
    var relativeBase = base.indexOf(':') === -1;

    if (href.substring(0, 2) === '//') {
      if (relativeBase) {
        return href;
      }

      return base.replace(protocol, '$1') + href;
    } else if (href.charAt(0) === '/') {
      if (relativeBase) {
        return href;
      }

      return base.replace(domain, '$1') + href;
    } else {
      return base + href;
    }
  }

  var noopTest = {
    exec: function noopTest() {}
  };

  function merge(obj) {
    var i = 1,
        target,
        key;

    for (; i < arguments.length; i++) {
      target = arguments[i];

      for (key in target) {
        if (Object.prototype.hasOwnProperty.call(target, key)) {
          obj[key] = target[key];
        }
      }
    }

    return obj;
  }

  function splitCells(tableRow, count) {
    // ensure that every cell-delimiting pipe has a space
    // before it to distinguish it from an escaped pipe
    var row = tableRow.replace(/\|/g, function (match, offset, str) {
      var escaped = false,
          curr = offset;

      while (--curr >= 0 && str[curr] === '\\') {
        escaped = !escaped;
      }

      if (escaped) {
        // odd number of slashes means | is escaped
        // so we leave it alone
        return '|';
      } else {
        // add space before unescaped |
        return ' |';
      }
    }),
        cells = row.split(/ \|/);
    var i = 0;

    if (cells.length > count) {
      cells.splice(count);
    } else {
      while (cells.length < count) {
        cells.push('');
      }
    }

    for (; i < cells.length; i++) {
      // leading or trailing whitespace is ignored per the gfm spec
      cells[i] = cells[i].trim().replace(/\\\|/g, '|');
    }

    return cells;
  } // Remove trailing 'c's. Equivalent to str.replace(/c*$/, '').
  // /c*$/ is vulnerable to REDOS.
  // invert: Remove suffix of non-c chars instead. Default falsey.


  function rtrim(str, c, invert) {
    var l = str.length;

    if (l === 0) {
      return '';
    } // Length of suffix matching the invert condition.


    var suffLen = 0; // Step left until we fail to match the invert condition.

    while (suffLen < l) {
      var currChar = str.charAt(l - suffLen - 1);

      if (currChar === c && !invert) {
        suffLen++;
      } else if (currChar !== c && invert) {
        suffLen++;
      } else {
        break;
      }
    }

    return str.substr(0, l - suffLen);
  }

  function findClosingBracket(str, b) {
    if (str.indexOf(b[1]) === -1) {
      return -1;
    }

    var l = str.length;
    var level = 0,
        i = 0;

    for (; i < l; i++) {
      if (str[i] === '\\') {
        i++;
      } else if (str[i] === b[0]) {
        level++;
      } else if (str[i] === b[1]) {
        level--;

        if (level < 0) {
          return i;
        }
      }
    }

    return -1;
  }

  function checkSanitizeDeprecation(opt) {
    if (opt && opt.sanitize && !opt.silent) {
      console.warn('marked(): sanitize and sanitizer parameters are deprecated since version 0.7.0, should not be used and will be removed in the future. Read more here: https://marked.js.org/#/USING_ADVANCED.md#options');
    }
  }

  var helpers = {
    escape: escape,
    unescape: unescape,
    edit: edit,
    cleanUrl: cleanUrl,
    resolveUrl: resolveUrl,
    noopTest: noopTest,
    merge: merge,
    splitCells: splitCells,
    rtrim: rtrim,
    findClosingBracket: findClosingBracket,
    checkSanitizeDeprecation: checkSanitizeDeprecation
  };

  var defaults$1 = defaults.defaults;
  var rtrim$1 = helpers.rtrim,
      splitCells$1 = helpers.splitCells,
      _escape = helpers.escape,
      findClosingBracket$1 = helpers.findClosingBracket;

  function outputLink(cap, link, raw) {
    var href = link.href;
    var title = link.title ? _escape(link.title) : null;
    var text = cap[1].replace(/\\([\[\]])/g, '$1');

    if (cap[0].charAt(0) !== '!') {
      return {
        type: 'link',
        raw: raw,
        href: href,
        title: title,
        text: text
      };
    } else {
      return {
        type: 'image',
        raw: raw,
        href: href,
        title: title,
        text: _escape(text)
      };
    }
  }

  function indentCodeCompensation(raw, text) {
    var matchIndentToCode = raw.match(/^(\s+)(?:```)/);

    if (matchIndentToCode === null) {
      return text;
    }

    var indentToCode = matchIndentToCode[1];
    return text.split('\n').map(function (node) {
      var matchIndentInNode = node.match(/^\s+/);

      if (matchIndentInNode === null) {
        return node;
      }

      var indentInNode = matchIndentInNode[0];

      if (indentInNode.length >= indentToCode.length) {
        return node.slice(indentToCode.length);
      }

      return node;
    }).join('\n');
  }
  /**
   * Tokenizer
   */


  var Tokenizer_1 = /*#__PURE__*/function () {
    function Tokenizer(options) {
      this.options = options || defaults$1;
    }

    var _proto = Tokenizer.prototype;

    _proto.space = function space(src) {
      var cap = this.rules.block.newline.exec(src);

      if (cap) {
        if (cap[0].length > 1) {
          return {
            type: 'space',
            raw: cap[0]
          };
        }

        return {
          raw: '\n'
        };
      }
    };

    _proto.code = function code(src, tokens) {
      var cap = this.rules.block.code.exec(src);

      if (cap) {
        var lastToken = tokens[tokens.length - 1]; // An indented code block cannot interrupt a paragraph.

        if (lastToken && lastToken.type === 'paragraph') {
          return {
            raw: cap[0],
            text: cap[0].trimRight()
          };
        }

        var text = cap[0].replace(/^ {4}/gm, '');
        return {
          type: 'code',
          raw: cap[0],
          codeBlockStyle: 'indented',
          text: !this.options.pedantic ? rtrim$1(text, '\n') : text
        };
      }
    };

    _proto.fences = function fences(src) {
      var cap = this.rules.block.fences.exec(src);

      if (cap) {
        var raw = cap[0];
        var text = indentCodeCompensation(raw, cap[3] || '');
        return {
          type: 'code',
          raw: raw,
          lang: cap[2] ? cap[2].trim() : cap[2],
          text: text
        };
      }
    };

    _proto.heading = function heading(src) {
      var cap = this.rules.block.heading.exec(src);

      if (cap) {
        return {
          type: 'heading',
          raw: cap[0],
          depth: cap[1].length,
          text: cap[2]
        };
      }
    };

    _proto.nptable = function nptable(src) {
      var cap = this.rules.block.nptable.exec(src);

      if (cap) {
        var item = {
          type: 'table',
          header: splitCells$1(cap[1].replace(/^ *| *\| *$/g, '')),
          align: cap[2].replace(/^ *|\| *$/g, '').split(/ *\| */),
          cells: cap[3] ? cap[3].replace(/\n$/, '').split('\n') : [],
          raw: cap[0]
        };

        if (item.header.length === item.align.length) {
          var l = item.align.length;
          var i;

          for (i = 0; i < l; i++) {
            if (/^ *-+: *$/.test(item.align[i])) {
              item.align[i] = 'right';
            } else if (/^ *:-+: *$/.test(item.align[i])) {
              item.align[i] = 'center';
            } else if (/^ *:-+ *$/.test(item.align[i])) {
              item.align[i] = 'left';
            } else {
              item.align[i] = null;
            }
          }

          l = item.cells.length;

          for (i = 0; i < l; i++) {
            item.cells[i] = splitCells$1(item.cells[i], item.header.length);
          }

          return item;
        }
      }
    };

    _proto.hr = function hr(src) {
      var cap = this.rules.block.hr.exec(src);

      if (cap) {
        return {
          type: 'hr',
          raw: cap[0]
        };
      }
    };

    _proto.blockquote = function blockquote(src) {
      var cap = this.rules.block.blockquote.exec(src);

      if (cap) {
        var text = cap[0].replace(/^ *> ?/gm, '');
        return {
          type: 'blockquote',
          raw: cap[0],
          text: text
        };
      }
    };

    _proto.list = function list(src) {
      var cap = this.rules.block.list.exec(src);

      if (cap) {
        var raw = cap[0];
        var bull = cap[2];
        var isordered = bull.length > 1;
        var isparen = bull[bull.length - 1] === ')';
        var list = {
          type: 'list',
          raw: raw,
          ordered: isordered,
          start: isordered ? +bull.slice(0, -1) : '',
          loose: false,
          items: []
        }; // Get each top-level item.

        var itemMatch = cap[0].match(this.rules.block.item);
        var next = false,
            item,
            space,
            b,
            addBack,
            loose,
            istask,
            ischecked;
        var l = itemMatch.length;

        for (var i = 0; i < l; i++) {
          item = itemMatch[i];
          raw = item; // Remove the list item's bullet
          // so it is seen as the next token.

          space = item.length;
          item = item.replace(/^ *([*+-]|\d+[.)]) */, ''); // Outdent whatever the
          // list item contains. Hacky.

          if (~item.indexOf('\n ')) {
            space -= item.length;
            item = !this.options.pedantic ? item.replace(new RegExp('^ {1,' + space + '}', 'gm'), '') : item.replace(/^ {1,4}/gm, '');
          } // Determine whether the next list item belongs here.
          // Backpedal if it does not belong in this list.


          if (i !== l - 1) {
            b = this.rules.block.bullet.exec(itemMatch[i + 1])[0];

            if (isordered ? b.length === 1 || !isparen && b[b.length - 1] === ')' : b.length > 1 || this.options.smartLists && b !== bull) {
              addBack = itemMatch.slice(i + 1).join('\n');
              list.raw = list.raw.substring(0, list.raw.length - addBack.length);
              i = l - 1;
            }
          } // Determine whether item is loose or not.
          // Use: /(^|\n)(?! )[^\n]+\n\n(?!\s*$)/
          // for discount behavior.


          loose = next || /\n\n(?!\s*$)/.test(item);

          if (i !== l - 1) {
            next = item.charAt(item.length - 1) === '\n';
            if (!loose) loose = next;
          }

          if (loose) {
            list.loose = true;
          } // Check for task list items


          istask = /^\[[ xX]\] /.test(item);
          ischecked = undefined;

          if (istask) {
            ischecked = item[1] !== ' ';
            item = item.replace(/^\[[ xX]\] +/, '');
          }

          list.items.push({
            type: 'list_item',
            raw: raw,
            task: istask,
            checked: ischecked,
            loose: loose,
            text: item
          });
        }

        return list;
      }
    };

    _proto.html = function html(src) {
      var cap = this.rules.block.html.exec(src);

      if (cap) {
        return {
          type: this.options.sanitize ? 'paragraph' : 'html',
          raw: cap[0],
          pre: !this.options.sanitizer && (cap[1] === 'pre' || cap[1] === 'script' || cap[1] === 'style'),
          text: this.options.sanitize ? this.options.sanitizer ? this.options.sanitizer(cap[0]) : _escape(cap[0]) : cap[0]
        };
      }
    };

    _proto.def = function def(src) {
      var cap = this.rules.block.def.exec(src);

      if (cap) {
        if (cap[3]) cap[3] = cap[3].substring(1, cap[3].length - 1);
        var tag = cap[1].toLowerCase().replace(/\s+/g, ' ');
        return {
          tag: tag,
          raw: cap[0],
          href: cap[2],
          title: cap[3]
        };
      }
    };

    _proto.table = function table(src) {
      var cap = this.rules.block.table.exec(src);

      if (cap) {
        var item = {
          type: 'table',
          header: splitCells$1(cap[1].replace(/^ *| *\| *$/g, '')),
          align: cap[2].replace(/^ *|\| *$/g, '').split(/ *\| */),
          cells: cap[3] ? cap[3].replace(/\n$/, '').split('\n') : []
        };

        if (item.header.length === item.align.length) {
          item.raw = cap[0];
          var l = item.align.length;
          var i;

          for (i = 0; i < l; i++) {
            if (/^ *-+: *$/.test(item.align[i])) {
              item.align[i] = 'right';
            } else if (/^ *:-+: *$/.test(item.align[i])) {
              item.align[i] = 'center';
            } else if (/^ *:-+ *$/.test(item.align[i])) {
              item.align[i] = 'left';
            } else {
              item.align[i] = null;
            }
          }

          l = item.cells.length;

          for (i = 0; i < l; i++) {
            item.cells[i] = splitCells$1(item.cells[i].replace(/^ *\| *| *\| *$/g, ''), item.header.length);
          }

          return item;
        }
      }
    };

    _proto.lheading = function lheading(src) {
      var cap = this.rules.block.lheading.exec(src);

      if (cap) {
        return {
          type: 'heading',
          raw: cap[0],
          depth: cap[2].charAt(0) === '=' ? 1 : 2,
          text: cap[1]
        };
      }
    };

    _proto.paragraph = function paragraph(src) {
      var cap = this.rules.block.paragraph.exec(src);

      if (cap) {
        return {
          type: 'paragraph',
          raw: cap[0],
          text: cap[1].charAt(cap[1].length - 1) === '\n' ? cap[1].slice(0, -1) : cap[1]
        };
      }
    };

    _proto.text = function text(src, tokens) {
      var cap = this.rules.block.text.exec(src);

      if (cap) {
        var lastToken = tokens[tokens.length - 1];

        if (lastToken && lastToken.type === 'text') {
          return {
            raw: cap[0],
            text: cap[0]
          };
        }

        return {
          type: 'text',
          raw: cap[0],
          text: cap[0]
        };
      }
    };

    _proto.escape = function escape(src) {
      var cap = this.rules.inline.escape.exec(src);

      if (cap) {
        return {
          type: 'escape',
          raw: cap[0],
          text: _escape(cap[1])
        };
      }
    };

    _proto.tag = function tag(src, inLink, inRawBlock) {
      var cap = this.rules.inline.tag.exec(src);

      if (cap) {
        if (!inLink && /^<a /i.test(cap[0])) {
          inLink = true;
        } else if (inLink && /^<\/a>/i.test(cap[0])) {
          inLink = false;
        }

        if (!inRawBlock && /^<(pre|code|kbd|script)(\s|>)/i.test(cap[0])) {
          inRawBlock = true;
        } else if (inRawBlock && /^<\/(pre|code|kbd|script)(\s|>)/i.test(cap[0])) {
          inRawBlock = false;
        }

        return {
          type: this.options.sanitize ? 'text' : 'html',
          raw: cap[0],
          inLink: inLink,
          inRawBlock: inRawBlock,
          text: this.options.sanitize ? this.options.sanitizer ? this.options.sanitizer(cap[0]) : _escape(cap[0]) : cap[0]
        };
      }
    };

    _proto.link = function link(src) {
      var cap = this.rules.inline.link.exec(src);

      if (cap) {
        var lastParenIndex = findClosingBracket$1(cap[2], '()');

        if (lastParenIndex > -1) {
          var start = cap[0].indexOf('!') === 0 ? 5 : 4;
          var linkLen = start + cap[1].length + lastParenIndex;
          cap[2] = cap[2].substring(0, lastParenIndex);
          cap[0] = cap[0].substring(0, linkLen).trim();
          cap[3] = '';
        }

        var href = cap[2];
        var title = '';

        if (this.options.pedantic) {
          var link = /^([^'"]*[^\s])\s+(['"])(.*)\2/.exec(href);

          if (link) {
            href = link[1];
            title = link[3];
          } else {
            title = '';
          }
        } else {
          title = cap[3] ? cap[3].slice(1, -1) : '';
        }

        href = href.trim().replace(/^<([\s\S]*)>$/, '$1');
        var token = outputLink(cap, {
          href: href ? href.replace(this.rules.inline._escapes, '$1') : href,
          title: title ? title.replace(this.rules.inline._escapes, '$1') : title
        }, cap[0]);
        return token;
      }
    };

    _proto.reflink = function reflink(src, links) {
      var cap;

      if ((cap = this.rules.inline.reflink.exec(src)) || (cap = this.rules.inline.nolink.exec(src))) {
        var link = (cap[2] || cap[1]).replace(/\s+/g, ' ');
        link = links[link.toLowerCase()];

        if (!link || !link.href) {
          var text = cap[0].charAt(0);
          return {
            type: 'text',
            raw: text,
            text: text
          };
        }

        var token = outputLink(cap, link, cap[0]);
        return token;
      }
    };

    _proto.strong = function strong(src, maskedSrc, prevChar) {
      if (prevChar === void 0) {
        prevChar = '';
      }

      var match = this.rules.inline.strong.start.exec(src);

      if (match && (!match[1] || match[1] && (prevChar === '' || this.rules.inline.punctuation.exec(prevChar)))) {
        maskedSrc = maskedSrc.slice(-1 * src.length);
        var endReg = match[0] === '**' ? this.rules.inline.strong.endAst : this.rules.inline.strong.endUnd;
        endReg.lastIndex = 0;
        var cap;

        while ((match = endReg.exec(maskedSrc)) != null) {
          cap = this.rules.inline.strong.middle.exec(maskedSrc.slice(0, match.index + 3));

          if (cap) {
            return {
              type: 'strong',
              raw: src.slice(0, cap[0].length),
              text: src.slice(2, cap[0].length - 2)
            };
          }
        }
      }
    };

    _proto.em = function em(src, maskedSrc, prevChar) {
      if (prevChar === void 0) {
        prevChar = '';
      }

      var match = this.rules.inline.em.start.exec(src);

      if (match && (!match[1] || match[1] && (prevChar === '' || this.rules.inline.punctuation.exec(prevChar)))) {
        maskedSrc = maskedSrc.slice(-1 * src.length);
        var endReg = match[0] === '*' ? this.rules.inline.em.endAst : this.rules.inline.em.endUnd;
        endReg.lastIndex = 0;
        var cap;

        while ((match = endReg.exec(maskedSrc)) != null) {
          cap = this.rules.inline.em.middle.exec(maskedSrc.slice(0, match.index + 2));

          if (cap) {
            return {
              type: 'em',
              raw: src.slice(0, cap[0].length),
              text: src.slice(1, cap[0].length - 1)
            };
          }
        }
      }
    };

    _proto.codespan = function codespan(src) {
      var cap = this.rules.inline.code.exec(src);

      if (cap) {
        var text = cap[2].replace(/\n/g, ' ');
        var hasNonSpaceChars = /[^ ]/.test(text);
        var hasSpaceCharsOnBothEnds = text.startsWith(' ') && text.endsWith(' ');

        if (hasNonSpaceChars && hasSpaceCharsOnBothEnds) {
          text = text.substring(1, text.length - 1);
        }

        text = _escape(text, true);
        return {
          type: 'codespan',
          raw: cap[0],
          text: text
        };
      }
    };

    _proto.br = function br(src) {
      var cap = this.rules.inline.br.exec(src);

      if (cap) {
        return {
          type: 'br',
          raw: cap[0]
        };
      }
    };

    _proto.del = function del(src) {
      var cap = this.rules.inline.del.exec(src);

      if (cap) {
        return {
          type: 'del',
          raw: cap[0],
          text: cap[1]
        };
      }
    };

    _proto.autolink = function autolink(src, mangle) {
      var cap = this.rules.inline.autolink.exec(src);

      if (cap) {
        var text, href;

        if (cap[2] === '@') {
          text = _escape(this.options.mangle ? mangle(cap[1]) : cap[1]);
          href = 'mailto:' + text;
        } else {
          text = _escape(cap[1]);
          href = text;
        }

        return {
          type: 'link',
          raw: cap[0],
          text: text,
          href: href,
          tokens: [{
            type: 'text',
            raw: text,
            text: text
          }]
        };
      }
    };

    _proto.url = function url(src, mangle) {
      var cap;

      if (cap = this.rules.inline.url.exec(src)) {
        var text, href;

        if (cap[2] === '@') {
          text = _escape(this.options.mangle ? mangle(cap[0]) : cap[0]);
          href = 'mailto:' + text;
        } else {
          // do extended autolink path validation
          var prevCapZero;

          do {
            prevCapZero = cap[0];
            cap[0] = this.rules.inline._backpedal.exec(cap[0])[0];
          } while (prevCapZero !== cap[0]);

          text = _escape(cap[0]);

          if (cap[1] === 'www.') {
            href = 'http://' + text;
          } else {
            href = text;
          }
        }

        return {
          type: 'link',
          raw: cap[0],
          text: text,
          href: href,
          tokens: [{
            type: 'text',
            raw: text,
            text: text
          }]
        };
      }
    };

    _proto.inlineText = function inlineText(src, inRawBlock, smartypants) {
      var cap = this.rules.inline.text.exec(src);

      if (cap) {
        var text;

        if (inRawBlock) {
          text = this.options.sanitize ? this.options.sanitizer ? this.options.sanitizer(cap[0]) : _escape(cap[0]) : cap[0];
        } else {
          text = _escape(this.options.smartypants ? smartypants(cap[0]) : cap[0]);
        }

        return {
          type: 'text',
          raw: cap[0],
          text: text
        };
      }
    };

    return Tokenizer;
  }();

  var noopTest$1 = helpers.noopTest,
      edit$1 = helpers.edit,
      merge$1 = helpers.merge;
  /**
   * Block-Level Grammar
   */

  var block = {
    newline: /^\n+/,
    code: /^( {4}[^\n]+\n*)+/,
    fences: /^ {0,3}(`{3,}(?=[^`\n]*\n)|~{3,})([^\n]*)\n(?:|([\s\S]*?)\n)(?: {0,3}\1[~`]* *(?:\n+|$)|$)/,
    hr: /^ {0,3}((?:- *){3,}|(?:_ *){3,}|(?:\* *){3,})(?:\n+|$)/,
    heading: /^ {0,3}(#{1,6}) +([^\n]*?)(?: +#+)? *(?:\n+|$)/,
    blockquote: /^( {0,3}> ?(paragraph|[^\n]*)(?:\n|$))+/,
    list: /^( {0,3})(bull) [\s\S]+?(?:hr|def|\n{2,}(?! )(?!\1bull )\n*|\s*$)/,
    html: '^ {0,3}(?:' // optional indentation
    + '<(script|pre|style)[\\s>][\\s\\S]*?(?:</\\1>[^\\n]*\\n+|$)' // (1)
    + '|comment[^\\n]*(\\n+|$)' // (2)
    + '|<\\?[\\s\\S]*?\\?>\\n*' // (3)
    + '|<![A-Z][\\s\\S]*?>\\n*' // (4)
    + '|<!\\[CDATA\\[[\\s\\S]*?\\]\\]>\\n*' // (5)
    + '|</?(tag)(?: +|\\n|/?>)[\\s\\S]*?(?:\\n{2,}|$)' // (6)
    + '|<(?!script|pre|style)([a-z][\\w-]*)(?:attribute)*? */?>(?=[ \\t]*(?:\\n|$))[\\s\\S]*?(?:\\n{2,}|$)' // (7) open tag
    + '|</(?!script|pre|style)[a-z][\\w-]*\\s*>(?=[ \\t]*(?:\\n|$))[\\s\\S]*?(?:\\n{2,}|$)' // (7) closing tag
    + ')',
    def: /^ {0,3}\[(label)\]: *\n? *<?([^\s>]+)>?(?:(?: +\n? *| *\n *)(title))? *(?:\n+|$)/,
    nptable: noopTest$1,
    table: noopTest$1,
    lheading: /^([^\n]+)\n {0,3}(=+|-+) *(?:\n+|$)/,
    // regex template, placeholders will be replaced according to different paragraph
    // interruption rules of commonmark and the original markdown spec:
    _paragraph: /^([^\n]+(?:\n(?!hr|heading|lheading|blockquote|fences|list|html)[^\n]+)*)/,
    text: /^[^\n]+/
  };
  block._label = /(?!\s*\])(?:\\[\[\]]|[^\[\]])+/;
  block._title = /(?:"(?:\\"?|[^"\\])*"|'[^'\n]*(?:\n[^'\n]+)*\n?'|\([^()]*\))/;
  block.def = edit$1(block.def).replace('label', block._label).replace('title', block._title).getRegex();
  block.bullet = /(?:[*+-]|\d{1,9}[.)])/;
  block.item = /^( *)(bull) ?[^\n]*(?:\n(?!\1bull ?)[^\n]*)*/;
  block.item = edit$1(block.item, 'gm').replace(/bull/g, block.bullet).getRegex();
  block.list = edit$1(block.list).replace(/bull/g, block.bullet).replace('hr', '\\n+(?=\\1?(?:(?:- *){3,}|(?:_ *){3,}|(?:\\* *){3,})(?:\\n+|$))').replace('def', '\\n+(?=' + block.def.source + ')').getRegex();
  block._tag = 'address|article|aside|base|basefont|blockquote|body|caption' + '|center|col|colgroup|dd|details|dialog|dir|div|dl|dt|fieldset|figcaption' + '|figure|footer|form|frame|frameset|h[1-6]|head|header|hr|html|iframe' + '|legend|li|link|main|menu|menuitem|meta|nav|noframes|ol|optgroup|option' + '|p|param|section|source|summary|table|tbody|td|tfoot|th|thead|title|tr' + '|track|ul';
  block._comment = /<!--(?!-?>)[\s\S]*?-->/;
  block.html = edit$1(block.html, 'i').replace('comment', block._comment).replace('tag', block._tag).replace('attribute', / +[a-zA-Z:_][\w.:-]*(?: *= *"[^"\n]*"| *= *'[^'\n]*'| *= *[^\s"'=<>`]+)?/).getRegex();
  block.paragraph = edit$1(block._paragraph).replace('hr', block.hr).replace('heading', ' {0,3}#{1,6} ').replace('|lheading', '') // setex headings don't interrupt commonmark paragraphs
  .replace('blockquote', ' {0,3}>').replace('fences', ' {0,3}(?:`{3,}(?=[^`\\n]*\\n)|~{3,})[^\\n]*\\n').replace('list', ' {0,3}(?:[*+-]|1[.)]) ') // only lists starting from 1 can interrupt
  .replace('html', '</?(?:tag)(?: +|\\n|/?>)|<(?:script|pre|style|!--)').replace('tag', block._tag) // pars can be interrupted by type (6) html blocks
  .getRegex();
  block.blockquote = edit$1(block.blockquote).replace('paragraph', block.paragraph).getRegex();
  /**
   * Normal Block Grammar
   */

  block.normal = merge$1({}, block);
  /**
   * GFM Block Grammar
   */

  block.gfm = merge$1({}, block.normal, {
    nptable: '^ *([^|\\n ].*\\|.*)\\n' // Header
    + ' *([-:]+ *\\|[-| :]*)' // Align
    + '(?:\\n((?:(?!\\n|hr|heading|blockquote|code|fences|list|html).*(?:\\n|$))*)\\n*|$)',
    // Cells
    table: '^ *\\|(.+)\\n' // Header
    + ' *\\|?( *[-:]+[-| :]*)' // Align
    + '(?:\\n *((?:(?!\\n|hr|heading|blockquote|code|fences|list|html).*(?:\\n|$))*)\\n*|$)' // Cells

  });
  block.gfm.nptable = edit$1(block.gfm.nptable).replace('hr', block.hr).replace('heading', ' {0,3}#{1,6} ').replace('blockquote', ' {0,3}>').replace('code', ' {4}[^\\n]').replace('fences', ' {0,3}(?:`{3,}(?=[^`\\n]*\\n)|~{3,})[^\\n]*\\n').replace('list', ' {0,3}(?:[*+-]|1[.)]) ') // only lists starting from 1 can interrupt
  .replace('html', '</?(?:tag)(?: +|\\n|/?>)|<(?:script|pre|style|!--)').replace('tag', block._tag) // tables can be interrupted by type (6) html blocks
  .getRegex();
  block.gfm.table = edit$1(block.gfm.table).replace('hr', block.hr).replace('heading', ' {0,3}#{1,6} ').replace('blockquote', ' {0,3}>').replace('code', ' {4}[^\\n]').replace('fences', ' {0,3}(?:`{3,}(?=[^`\\n]*\\n)|~{3,})[^\\n]*\\n').replace('list', ' {0,3}(?:[*+-]|1[.)]) ') // only lists starting from 1 can interrupt
  .replace('html', '</?(?:tag)(?: +|\\n|/?>)|<(?:script|pre|style|!--)').replace('tag', block._tag) // tables can be interrupted by type (6) html blocks
  .getRegex();
  /**
   * Pedantic grammar (original John Gruber's loose markdown specification)
   */

  block.pedantic = merge$1({}, block.normal, {
    html: edit$1('^ *(?:comment *(?:\\n|\\s*$)' + '|<(tag)[\\s\\S]+?</\\1> *(?:\\n{2,}|\\s*$)' // closed tag
    + '|<tag(?:"[^"]*"|\'[^\']*\'|\\s[^\'"/>\\s]*)*?/?> *(?:\\n{2,}|\\s*$))').replace('comment', block._comment).replace(/tag/g, '(?!(?:' + 'a|em|strong|small|s|cite|q|dfn|abbr|data|time|code|var|samp|kbd|sub' + '|sup|i|b|u|mark|ruby|rt|rp|bdi|bdo|span|br|wbr|ins|del|img)' + '\\b)\\w+(?!:|[^\\w\\s@]*@)\\b').getRegex(),
    def: /^ *\[([^\]]+)\]: *<?([^\s>]+)>?(?: +(["(][^\n]+[")]))? *(?:\n+|$)/,
    heading: /^ *(#{1,6}) *([^\n]+?) *(?:#+ *)?(?:\n+|$)/,
    fences: noopTest$1,
    // fences not supported
    paragraph: edit$1(block.normal._paragraph).replace('hr', block.hr).replace('heading', ' *#{1,6} *[^\n]').replace('lheading', block.lheading).replace('blockquote', ' {0,3}>').replace('|fences', '').replace('|list', '').replace('|html', '').getRegex()
  });
  /**
   * Inline-Level Grammar
   */

  var inline = {
    escape: /^\\([!"#$%&'()*+,\-./:;<=>?@\[\]\\^_`{|}~])/,
    autolink: /^<(scheme:[^\s\x00-\x1f<>]*|email)>/,
    url: noopTest$1,
    tag: '^comment' + '|^</[a-zA-Z][\\w:-]*\\s*>' // self-closing tag
    + '|^<[a-zA-Z][\\w-]*(?:attribute)*?\\s*/?>' // open tag
    + '|^<\\?[\\s\\S]*?\\?>' // processing instruction, e.g. <?php ?>
    + '|^<![a-zA-Z]+\\s[\\s\\S]*?>' // declaration, e.g. <!DOCTYPE html>
    + '|^<!\\[CDATA\\[[\\s\\S]*?\\]\\]>',
    // CDATA section
    link: /^!?\[(label)\]\(\s*(href)(?:\s+(title))?\s*\)/,
    reflink: /^!?\[(label)\]\[(?!\s*\])((?:\\[\[\]]?|[^\[\]\\])+)\]/,
    nolink: /^!?\[(?!\s*\])((?:\[[^\[\]]*\]|\\[\[\]]|[^\[\]])*)\](?:\[\])?/,
    reflinkSearch: 'reflink|nolink(?!\\()',
    strong: {
      start: /^(?:(\*\*(?=[*punctuation]))|\*\*)(?![\s])|__/,
      // (1) returns if starts w/ punctuation
      middle: /^\*\*(?:(?:(?!overlapSkip)(?:[^*]|\\\*)|overlapSkip)|\*(?:(?!overlapSkip)(?:[^*]|\\\*)|overlapSkip)*?\*)+?\*\*$|^__(?![\s])((?:(?:(?!overlapSkip)(?:[^_]|\\_)|overlapSkip)|_(?:(?!overlapSkip)(?:[^_]|\\_)|overlapSkip)*?_)+?)__$/,
      endAst: /[^punctuation\s]\*\*(?!\*)|[punctuation]\*\*(?!\*)(?:(?=[punctuation\s]|$))/,
      // last char can't be punct, or final * must also be followed by punct (or endline)
      endUnd: /[^\s]__(?!_)(?:(?=[punctuation\s])|$)/ // last char can't be a space, and final _ must preceed punct or \s (or endline)

    },
    em: {
      start: /^(?:(\*(?=[punctuation]))|\*)(?![*\s])|_/,
      // (1) returns if starts w/ punctuation
      middle: /^\*(?:(?:(?!overlapSkip)(?:[^*]|\\\*)|overlapSkip)|\*(?:(?!overlapSkip)(?:[^*]|\\\*)|overlapSkip)*?\*)+?\*$|^_(?![_\s])(?:(?:(?!overlapSkip)(?:[^_]|\\_)|overlapSkip)|_(?:(?!overlapSkip)(?:[^_]|\\_)|overlapSkip)*?_)+?_$/,
      endAst: /[^punctuation\s]\*(?!\*)|[punctuation]\*(?!\*)(?:(?=[punctuation\s]|$))/,
      // last char can't be punct, or final * must also be followed by punct (or endline)
      endUnd: /[^\s]_(?!_)(?:(?=[punctuation\s])|$)/ // last char can't be a space, and final _ must preceed punct or \s (or endline)

    },
    code: /^(`+)([^`]|[^`][\s\S]*?[^`])\1(?!`)/,
    br: /^( {2,}|\\)\n(?!\s*$)/,
    del: noopTest$1,
    text: /^(`+|[^`])(?:[\s\S]*?(?:(?=[\\<!\[`*]|\b_|$)|[^ ](?= {2,}\n))|(?= {2,}\n))/,
    punctuation: /^([\s*punctuation])/
  }; // list of punctuation marks from common mark spec
  // without * and _ to workaround cases with double emphasis

  inline._punctuation = '!"#$%&\'()+\\-.,/:;<=>?@\\[\\]`^{|}~';
  inline.punctuation = edit$1(inline.punctuation).replace(/punctuation/g, inline._punctuation).getRegex(); // sequences em should skip over [title](link), `code`, <html>

  inline._blockSkip = '\\[[^\\]]*?\\]\\([^\\)]*?\\)|`[^`]*?`|<[^>]*?>';
  inline._overlapSkip = '__[^_]*?__|\\*\\*\\[^\\*\\]*?\\*\\*';
  inline.em.start = edit$1(inline.em.start).replace(/punctuation/g, inline._punctuation).getRegex();
  inline.em.middle = edit$1(inline.em.middle).replace(/punctuation/g, inline._punctuation).replace(/overlapSkip/g, inline._overlapSkip).getRegex();
  inline.em.endAst = edit$1(inline.em.endAst, 'g').replace(/punctuation/g, inline._punctuation).getRegex();
  inline.em.endUnd = edit$1(inline.em.endUnd, 'g').replace(/punctuation/g, inline._punctuation).getRegex();
  inline.strong.start = edit$1(inline.strong.start).replace(/punctuation/g, inline._punctuation).getRegex();
  inline.strong.middle = edit$1(inline.strong.middle).replace(/punctuation/g, inline._punctuation).replace(/blockSkip/g, inline._blockSkip).getRegex();
  inline.strong.endAst = edit$1(inline.strong.endAst, 'g').replace(/punctuation/g, inline._punctuation).getRegex();
  inline.strong.endUnd = edit$1(inline.strong.endUnd, 'g').replace(/punctuation/g, inline._punctuation).getRegex();
  inline.blockSkip = edit$1(inline._blockSkip, 'g').getRegex();
  inline.overlapSkip = edit$1(inline._overlapSkip, 'g').getRegex();
  inline._escapes = /\\([!"#$%&'()*+,\-./:;<=>?@\[\]\\^_`{|}~])/g;
  inline._scheme = /[a-zA-Z][a-zA-Z0-9+.-]{1,31}/;
  inline._email = /[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+(@)[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)+(?![-_])/;
  inline.autolink = edit$1(inline.autolink).replace('scheme', inline._scheme).replace('email', inline._email).getRegex();
  inline._attribute = /\s+[a-zA-Z:_][\w.:-]*(?:\s*=\s*"[^"]*"|\s*=\s*'[^']*'|\s*=\s*[^\s"'=<>`]+)?/;
  inline.tag = edit$1(inline.tag).replace('comment', block._comment).replace('attribute', inline._attribute).getRegex();
  inline._label = /(?:\[(?:\\.|[^\[\]\\])*\]|\\.|`[^`]*`|[^\[\]\\`])*?/;
  inline._href = /<(?:\\[<>]?|[^\s<>\\])*>|[^\s\x00-\x1f]*/;
  inline._title = /"(?:\\"?|[^"\\])*"|'(?:\\'?|[^'\\])*'|\((?:\\\)?|[^)\\])*\)/;
  inline.link = edit$1(inline.link).replace('label', inline._label).replace('href', inline._href).replace('title', inline._title).getRegex();
  inline.reflink = edit$1(inline.reflink).replace('label', inline._label).getRegex();
  inline.reflinkSearch = edit$1(inline.reflinkSearch, 'g').replace('reflink', inline.reflink).replace('nolink', inline.nolink).getRegex();
  /**
   * Normal Inline Grammar
   */

  inline.normal = merge$1({}, inline);
  /**
   * Pedantic Inline Grammar
   */

  inline.pedantic = merge$1({}, inline.normal, {
    strong: {
      start: /^__|\*\*/,
      middle: /^__(?=\S)([\s\S]*?\S)__(?!_)|^\*\*(?=\S)([\s\S]*?\S)\*\*(?!\*)/,
      endAst: /\*\*(?!\*)/g,
      endUnd: /__(?!_)/g
    },
    em: {
      start: /^_|\*/,
      middle: /^()\*(?=\S)([\s\S]*?\S)\*(?!\*)|^_(?=\S)([\s\S]*?\S)_(?!_)/,
      endAst: /\*(?!\*)/g,
      endUnd: /_(?!_)/g
    },
    link: edit$1(/^!?\[(label)\]\((.*?)\)/).replace('label', inline._label).getRegex(),
    reflink: edit$1(/^!?\[(label)\]\s*\[([^\]]*)\]/).replace('label', inline._label).getRegex()
  });
  /**
   * GFM Inline Grammar
   */

  inline.gfm = merge$1({}, inline.normal, {
    escape: edit$1(inline.escape).replace('])', '~|])').getRegex(),
    _extended_email: /[A-Za-z0-9._+-]+(@)[a-zA-Z0-9-_]+(?:\.[a-zA-Z0-9-_]*[a-zA-Z0-9])+(?![-_])/,
    url: /^((?:ftp|https?):\/\/|www\.)(?:[a-zA-Z0-9\-]+\.?)+[^\s<]*|^email/,
    _backpedal: /(?:[^?!.,:;*_~()&]+|\([^)]*\)|&(?![a-zA-Z0-9]+;$)|[?!.,:;*_~)]+(?!$))+/,
    del: /^~+(?=\S)([\s\S]*?\S)~+/,
    text: /^(`+|[^`])(?:[\s\S]*?(?:(?=[\\<!\[`*~]|\b_|https?:\/\/|ftp:\/\/|www\.|$)|[^ ](?= {2,}\n)|[^a-zA-Z0-9.!#$%&'*+\/=?_`{\|}~-](?=[a-zA-Z0-9.!#$%&'*+\/=?_`{\|}~-]+@))|(?= {2,}\n|[a-zA-Z0-9.!#$%&'*+\/=?_`{\|}~-]+@))/
  });
  inline.gfm.url = edit$1(inline.gfm.url, 'i').replace('email', inline.gfm._extended_email).getRegex();
  /**
   * GFM + Line Breaks Inline Grammar
   */

  inline.breaks = merge$1({}, inline.gfm, {
    br: edit$1(inline.br).replace('{2,}', '*').getRegex(),
    text: edit$1(inline.gfm.text).replace('\\b_', '\\b_| {2,}\\n').replace(/\{2,\}/g, '*').getRegex()
  });
  var rules = {
    block: block,
    inline: inline
  };

  var defaults$2 = defaults.defaults;
  var block$1 = rules.block,
      inline$1 = rules.inline;
  /**
   * smartypants text replacement
   */

  function smartypants(text) {
    return text // em-dashes
    .replace(/---/g, "\u2014") // en-dashes
    .replace(/--/g, "\u2013") // opening singles
    .replace(/(^|[-\u2014/(\[{"\s])'/g, "$1\u2018") // closing singles & apostrophes
    .replace(/'/g, "\u2019") // opening doubles
    .replace(/(^|[-\u2014/(\[{\u2018\s])"/g, "$1\u201C") // closing doubles
    .replace(/"/g, "\u201D") // ellipses
    .replace(/\.{3}/g, "\u2026");
  }
  /**
   * mangle email addresses
   */


  function mangle(text) {
    var out = '',
        i,
        ch;
    var l = text.length;

    for (i = 0; i < l; i++) {
      ch = text.charCodeAt(i);

      if (Math.random() > 0.5) {
        ch = 'x' + ch.toString(16);
      }

      out += '&#' + ch + ';';
    }

    return out;
  }
  /**
   * Block Lexer
   */


  var Lexer_1 = /*#__PURE__*/function () {
    function Lexer(options) {
      this.tokens = [];
      this.tokens.links = Object.create(null);
      this.options = options || defaults$2;
      this.options.tokenizer = this.options.tokenizer || new Tokenizer_1();
      this.tokenizer = this.options.tokenizer;
      this.tokenizer.options = this.options;
      var rules = {
        block: block$1.normal,
        inline: inline$1.normal
      };

      if (this.options.pedantic) {
        rules.block = block$1.pedantic;
        rules.inline = inline$1.pedantic;
      } else if (this.options.gfm) {
        rules.block = block$1.gfm;

        if (this.options.breaks) {
          rules.inline = inline$1.breaks;
        } else {
          rules.inline = inline$1.gfm;
        }
      }

      this.tokenizer.rules = rules;
    }
    /**
     * Expose Rules
     */


    /**
     * Static Lex Method
     */
    Lexer.lex = function lex(src, options) {
      var lexer = new Lexer(options);
      return lexer.lex(src);
    }
    /**
     * Preprocessing
     */
    ;

    var _proto = Lexer.prototype;

    _proto.lex = function lex(src) {
      src = src.replace(/\r\n|\r/g, '\n').replace(/\t/g, '    ');
      this.blockTokens(src, this.tokens, true);
      this.inline(this.tokens);
      return this.tokens;
    }
    /**
     * Lexing
     */
    ;

    _proto.blockTokens = function blockTokens(src, tokens, top) {
      if (tokens === void 0) {
        tokens = [];
      }

      if (top === void 0) {
        top = true;
      }

      src = src.replace(/^ +$/gm, '');
      var token, i, l, lastToken;

      while (src) {
        // newline
        if (token = this.tokenizer.space(src)) {
          src = src.substring(token.raw.length);

          if (token.type) {
            tokens.push(token);
          }

          continue;
        } // code


        if (token = this.tokenizer.code(src, tokens)) {
          src = src.substring(token.raw.length);

          if (token.type) {
            tokens.push(token);
          } else {
            lastToken = tokens[tokens.length - 1];
            lastToken.raw += '\n' + token.raw;
            lastToken.text += '\n' + token.text;
          }

          continue;
        } // fences


        if (token = this.tokenizer.fences(src)) {
          src = src.substring(token.raw.length);
          tokens.push(token);
          continue;
        } // heading


        if (token = this.tokenizer.heading(src)) {
          src = src.substring(token.raw.length);
          tokens.push(token);
          continue;
        } // table no leading pipe (gfm)


        if (token = this.tokenizer.nptable(src)) {
          src = src.substring(token.raw.length);
          tokens.push(token);
          continue;
        } // hr


        if (token = this.tokenizer.hr(src)) {
          src = src.substring(token.raw.length);
          tokens.push(token);
          continue;
        } // blockquote


        if (token = this.tokenizer.blockquote(src)) {
          src = src.substring(token.raw.length);
          token.tokens = this.blockTokens(token.text, [], top);
          tokens.push(token);
          continue;
        } // list


        if (token = this.tokenizer.list(src)) {
          src = src.substring(token.raw.length);
          l = token.items.length;

          for (i = 0; i < l; i++) {
            token.items[i].tokens = this.blockTokens(token.items[i].text, [], false);
          }

          tokens.push(token);
          continue;
        } // html


        if (token = this.tokenizer.html(src)) {
          src = src.substring(token.raw.length);
          tokens.push(token);
          continue;
        } // def


        if (top && (token = this.tokenizer.def(src))) {
          src = src.substring(token.raw.length);

          if (!this.tokens.links[token.tag]) {
            this.tokens.links[token.tag] = {
              href: token.href,
              title: token.title
            };
          }

          continue;
        } // table (gfm)


        if (token = this.tokenizer.table(src)) {
          src = src.substring(token.raw.length);
          tokens.push(token);
          continue;
        } // lheading


        if (token = this.tokenizer.lheading(src)) {
          src = src.substring(token.raw.length);
          tokens.push(token);
          continue;
        } // top-level paragraph


        if (top && (token = this.tokenizer.paragraph(src))) {
          src = src.substring(token.raw.length);
          tokens.push(token);
          continue;
        } // text


        if (token = this.tokenizer.text(src, tokens)) {
          src = src.substring(token.raw.length);

          if (token.type) {
            tokens.push(token);
          } else {
            lastToken = tokens[tokens.length - 1];
            lastToken.raw += '\n' + token.raw;
            lastToken.text += '\n' + token.text;
          }

          continue;
        }

        if (src) {
          var errMsg = 'Infinite loop on byte: ' + src.charCodeAt(0);

          if (this.options.silent) {
            console.error(errMsg);
            break;
          } else {
            throw new Error(errMsg);
          }
        }
      }

      return tokens;
    };

    _proto.inline = function inline(tokens) {
      var i, j, k, l2, row, token;
      var l = tokens.length;

      for (i = 0; i < l; i++) {
        token = tokens[i];

        switch (token.type) {
          case 'paragraph':
          case 'text':
          case 'heading':
            {
              token.tokens = [];
              this.inlineTokens(token.text, token.tokens);
              break;
            }

          case 'table':
            {
              token.tokens = {
                header: [],
                cells: []
              }; // header

              l2 = token.header.length;

              for (j = 0; j < l2; j++) {
                token.tokens.header[j] = [];
                this.inlineTokens(token.header[j], token.tokens.header[j]);
              } // cells


              l2 = token.cells.length;

              for (j = 0; j < l2; j++) {
                row = token.cells[j];
                token.tokens.cells[j] = [];

                for (k = 0; k < row.length; k++) {
                  token.tokens.cells[j][k] = [];
                  this.inlineTokens(row[k], token.tokens.cells[j][k]);
                }
              }

              break;
            }

          case 'blockquote':
            {
              this.inline(token.tokens);
              break;
            }

          case 'list':
            {
              l2 = token.items.length;

              for (j = 0; j < l2; j++) {
                this.inline(token.items[j].tokens);
              }

              break;
            }
        }
      }

      return tokens;
    }
    /**
     * Lexing/Compiling
     */
    ;

    _proto.inlineTokens = function inlineTokens(src, tokens, inLink, inRawBlock, prevChar) {
      if (tokens === void 0) {
        tokens = [];
      }

      if (inLink === void 0) {
        inLink = false;
      }

      if (inRawBlock === void 0) {
        inRawBlock = false;
      }

      if (prevChar === void 0) {
        prevChar = '';
      }

      var token; // String with links masked to avoid interference with em and strong

      var maskedSrc = src;
      var match; // Mask out reflinks

      if (this.tokens.links) {
        var links = Object.keys(this.tokens.links);

        if (links.length > 0) {
          while ((match = this.tokenizer.rules.inline.reflinkSearch.exec(maskedSrc)) != null) {
            if (links.includes(match[0].slice(match[0].lastIndexOf('[') + 1, -1))) {
              maskedSrc = maskedSrc.slice(0, match.index) + '[' + 'a'.repeat(match[0].length - 2) + ']' + maskedSrc.slice(this.tokenizer.rules.inline.reflinkSearch.lastIndex);
            }
          }
        }
      } // Mask out other blocks


      while ((match = this.tokenizer.rules.inline.blockSkip.exec(maskedSrc)) != null) {
        maskedSrc = maskedSrc.slice(0, match.index) + '[' + 'a'.repeat(match[0].length - 2) + ']' + maskedSrc.slice(this.tokenizer.rules.inline.blockSkip.lastIndex);
      }

      while (src) {
        // escape
        if (token = this.tokenizer.escape(src)) {
          src = src.substring(token.raw.length);
          tokens.push(token);
          continue;
        } // tag


        if (token = this.tokenizer.tag(src, inLink, inRawBlock)) {
          src = src.substring(token.raw.length);
          inLink = token.inLink;
          inRawBlock = token.inRawBlock;
          tokens.push(token);
          continue;
        } // link


        if (token = this.tokenizer.link(src)) {
          src = src.substring(token.raw.length);

          if (token.type === 'link') {
            token.tokens = this.inlineTokens(token.text, [], true, inRawBlock);
          }

          tokens.push(token);
          continue;
        } // reflink, nolink


        if (token = this.tokenizer.reflink(src, this.tokens.links)) {
          src = src.substring(token.raw.length);

          if (token.type === 'link') {
            token.tokens = this.inlineTokens(token.text, [], true, inRawBlock);
          }

          tokens.push(token);
          continue;
        } // strong


        if (token = this.tokenizer.strong(src, maskedSrc, prevChar)) {
          src = src.substring(token.raw.length);
          token.tokens = this.inlineTokens(token.text, [], inLink, inRawBlock);
          tokens.push(token);
          continue;
        } // em


        if (token = this.tokenizer.em(src, maskedSrc, prevChar)) {
          src = src.substring(token.raw.length);
          token.tokens = this.inlineTokens(token.text, [], inLink, inRawBlock);
          tokens.push(token);
          continue;
        } // code


        if (token = this.tokenizer.codespan(src)) {
          src = src.substring(token.raw.length);
          tokens.push(token);
          continue;
        } // br


        if (token = this.tokenizer.br(src)) {
          src = src.substring(token.raw.length);
          tokens.push(token);
          continue;
        } // del (gfm)


        if (token = this.tokenizer.del(src)) {
          src = src.substring(token.raw.length);
          token.tokens = this.inlineTokens(token.text, [], inLink, inRawBlock);
          tokens.push(token);
          continue;
        } // autolink


        if (token = this.tokenizer.autolink(src, mangle)) {
          src = src.substring(token.raw.length);
          tokens.push(token);
          continue;
        } // url (gfm)


        if (!inLink && (token = this.tokenizer.url(src, mangle))) {
          src = src.substring(token.raw.length);
          tokens.push(token);
          continue;
        } // text


        if (token = this.tokenizer.inlineText(src, inRawBlock, smartypants)) {
          src = src.substring(token.raw.length);
          prevChar = token.raw.slice(-1);
          tokens.push(token);
          continue;
        }

        if (src) {
          var errMsg = 'Infinite loop on byte: ' + src.charCodeAt(0);

          if (this.options.silent) {
            console.error(errMsg);
            break;
          } else {
            throw new Error(errMsg);
          }
        }
      }

      return tokens;
    };

    _createClass(Lexer, null, [{
      key: "rules",
      get: function get() {
        return {
          block: block$1,
          inline: inline$1
        };
      }
    }]);

    return Lexer;
  }();

  var defaults$3 = defaults.defaults;
  var cleanUrl$1 = helpers.cleanUrl,
      escape$1 = helpers.escape;
  /**
   * Renderer
   */

  var Renderer_1 = /*#__PURE__*/function () {
    function Renderer(options) {
      this.options = options || defaults$3;
    }

    var _proto = Renderer.prototype;

    _proto.code = function code(_code, infostring, escaped) {
      var lang = (infostring || '').match(/\S*/)[0];

      if (this.options.highlight) {
        var out = this.options.highlight(_code, lang);

        if (out != null && out !== _code) {
          escaped = true;
          _code = out;
        }
      }

      if (!lang) {
        return '<pre><code>' + (escaped ? _code : escape$1(_code, true)) + '</code></pre>\n';
      }

      return '<pre><code class="' + this.options.langPrefix + escape$1(lang, true) + '">' + (escaped ? _code : escape$1(_code, true)) + '</code></pre>\n';
    };

    _proto.blockquote = function blockquote(quote) {
      return '<blockquote>\n' + quote + '</blockquote>\n';
    };

    _proto.html = function html(_html) {
      return _html;
    };

    _proto.heading = function heading(text, level, raw, slugger) {
      if (this.options.headerIds) {
        return '<h' + level + ' id="' + this.options.headerPrefix + slugger.slug(raw) + '">' + text + '</h' + level + '>\n';
      } // ignore IDs


      return '<h' + level + '>' + text + '</h' + level + '>\n';
    };

    _proto.hr = function hr() {
      return this.options.xhtml ? '<hr/>\n' : '<hr>\n';
    };

    _proto.list = function list(body, ordered, start) {
      var type = ordered ? 'ol' : 'ul',
          startatt = ordered && start !== 1 ? ' start="' + start + '"' : '';
      return '<' + type + startatt + '>\n' + body + '</' + type + '>\n';
    };

    _proto.listitem = function listitem(text) {
      return '<li>' + text + '</li>\n';
    };

    _proto.checkbox = function checkbox(checked) {
      return '<input ' + (checked ? 'checked="" ' : '') + 'disabled="" type="checkbox"' + (this.options.xhtml ? ' /' : '') + '> ';
    };

    _proto.paragraph = function paragraph(text) {
      return '<p>' + text + '</p>\n';
    };

    _proto.table = function table(header, body) {
      if (body) body = '<tbody>' + body + '</tbody>';
      return '<table>\n' + '<thead>\n' + header + '</thead>\n' + body + '</table>\n';
    };

    _proto.tablerow = function tablerow(content) {
      return '<tr>\n' + content + '</tr>\n';
    };

    _proto.tablecell = function tablecell(content, flags) {
      var type = flags.header ? 'th' : 'td';
      var tag = flags.align ? '<' + type + ' align="' + flags.align + '">' : '<' + type + '>';
      return tag + content + '</' + type + '>\n';
    } // span level renderer
    ;

    _proto.strong = function strong(text) {
      return '<strong>' + text + '</strong>';
    };

    _proto.em = function em(text) {
      return '<em>' + text + '</em>';
    };

    _proto.codespan = function codespan(text) {
      return '<code>' + text + '</code>';
    };

    _proto.br = function br() {
      return this.options.xhtml ? '<br/>' : '<br>';
    };

    _proto.del = function del(text) {
      return '<del>' + text + '</del>';
    };

    _proto.link = function link(href, title, text) {
      href = cleanUrl$1(this.options.sanitize, this.options.baseUrl, href);

      if (href === null) {
        return text;
      }

      var out = '<a href="' + escape$1(href) + '"';

      if (title) {
        out += ' title="' + title + '"';
      }

      out += '>' + text + '</a>';
      return out;
    };

    _proto.image = function image(href, title, text) {
      href = cleanUrl$1(this.options.sanitize, this.options.baseUrl, href);

      if (href === null) {
        return text;
      }

      var out = '<img src="' + href + '" alt="' + text + '"';

      if (title) {
        out += ' title="' + title + '"';
      }

      out += this.options.xhtml ? '/>' : '>';
      return out;
    };

    _proto.text = function text(_text) {
      return _text;
    };

    return Renderer;
  }();

  /**
   * TextRenderer
   * returns only the textual part of the token
   */
  var TextRenderer_1 = /*#__PURE__*/function () {
    function TextRenderer() {}

    var _proto = TextRenderer.prototype;

    // no need for block level renderers
    _proto.strong = function strong(text) {
      return text;
    };

    _proto.em = function em(text) {
      return text;
    };

    _proto.codespan = function codespan(text) {
      return text;
    };

    _proto.del = function del(text) {
      return text;
    };

    _proto.html = function html(text) {
      return text;
    };

    _proto.text = function text(_text) {
      return _text;
    };

    _proto.link = function link(href, title, text) {
      return '' + text;
    };

    _proto.image = function image(href, title, text) {
      return '' + text;
    };

    _proto.br = function br() {
      return '';
    };

    return TextRenderer;
  }();

  /**
   * Slugger generates header id
   */
  var Slugger_1 = /*#__PURE__*/function () {
    function Slugger() {
      this.seen = {};
    }
    /**
     * Convert string to unique id
     */


    var _proto = Slugger.prototype;

    _proto.slug = function slug(value) {
      var slug = value.toLowerCase().trim() // remove html tags
      .replace(/<[!\/a-z].*?>/ig, '') // remove unwanted chars
      .replace(/[\u2000-\u206F\u2E00-\u2E7F\\'!"#$%&()*+,./:;<=>?@[\]^`{|}~]/g, '').replace(/\s/g, '-');

      if (this.seen.hasOwnProperty(slug)) {
        var originalSlug = slug;

        do {
          this.seen[originalSlug]++;
          slug = originalSlug + '-' + this.seen[originalSlug];
        } while (this.seen.hasOwnProperty(slug));
      }

      this.seen[slug] = 0;
      return slug;
    };

    return Slugger;
  }();

  var defaults$4 = defaults.defaults;
  var unescape$1 = helpers.unescape;
  /**
   * Parsing & Compiling
   */

  var Parser_1 = /*#__PURE__*/function () {
    function Parser(options) {
      this.options = options || defaults$4;
      this.options.renderer = this.options.renderer || new Renderer_1();
      this.renderer = this.options.renderer;
      this.renderer.options = this.options;
      this.textRenderer = new TextRenderer_1();
      this.slugger = new Slugger_1();
    }
    /**
     * Static Parse Method
     */


    Parser.parse = function parse(tokens, options) {
      var parser = new Parser(options);
      return parser.parse(tokens);
    }
    /**
     * Parse Loop
     */
    ;

    var _proto = Parser.prototype;

    _proto.parse = function parse(tokens, top) {
      if (top === void 0) {
        top = true;
      }

      var out = '',
          i,
          j,
          k,
          l2,
          l3,
          row,
          cell,
          header,
          body,
          token,
          ordered,
          start,
          loose,
          itemBody,
          item,
          checked,
          task,
          checkbox;
      var l = tokens.length;

      for (i = 0; i < l; i++) {
        token = tokens[i];

        switch (token.type) {
          case 'space':
            {
              continue;
            }

          case 'hr':
            {
              out += this.renderer.hr();
              continue;
            }

          case 'heading':
            {
              out += this.renderer.heading(this.parseInline(token.tokens), token.depth, unescape$1(this.parseInline(token.tokens, this.textRenderer)), this.slugger);
              continue;
            }

          case 'code':
            {
              out += this.renderer.code(token.text, token.lang, token.escaped);
              continue;
            }

          case 'table':
            {
              header = ''; // header

              cell = '';
              l2 = token.header.length;

              for (j = 0; j < l2; j++) {
                cell += this.renderer.tablecell(this.parseInline(token.tokens.header[j]), {
                  header: true,
                  align: token.align[j]
                });
              }

              header += this.renderer.tablerow(cell);
              body = '';
              l2 = token.cells.length;

              for (j = 0; j < l2; j++) {
                row = token.tokens.cells[j];
                cell = '';
                l3 = row.length;

                for (k = 0; k < l3; k++) {
                  cell += this.renderer.tablecell(this.parseInline(row[k]), {
                    header: false,
                    align: token.align[k]
                  });
                }

                body += this.renderer.tablerow(cell);
              }

              out += this.renderer.table(header, body);
              continue;
            }

          case 'blockquote':
            {
              body = this.parse(token.tokens);
              out += this.renderer.blockquote(body);
              continue;
            }

          case 'list':
            {
              ordered = token.ordered;
              start = token.start;
              loose = token.loose;
              l2 = token.items.length;
              body = '';

              for (j = 0; j < l2; j++) {
                item = token.items[j];
                checked = item.checked;
                task = item.task;
                itemBody = '';

                if (item.task) {
                  checkbox = this.renderer.checkbox(checked);

                  if (loose) {
                    if (item.tokens.length > 0 && item.tokens[0].type === 'text') {
                      item.tokens[0].text = checkbox + ' ' + item.tokens[0].text;

                      if (item.tokens[0].tokens && item.tokens[0].tokens.length > 0 && item.tokens[0].tokens[0].type === 'text') {
                        item.tokens[0].tokens[0].text = checkbox + ' ' + item.tokens[0].tokens[0].text;
                      }
                    } else {
                      item.tokens.unshift({
                        type: 'text',
                        text: checkbox
                      });
                    }
                  } else {
                    itemBody += checkbox;
                  }
                }

                itemBody += this.parse(item.tokens, loose);
                body += this.renderer.listitem(itemBody, task, checked);
              }

              out += this.renderer.list(body, ordered, start);
              continue;
            }

          case 'html':
            {
              // TODO parse inline content if parameter markdown=1
              out += this.renderer.html(token.text);
              continue;
            }

          case 'paragraph':
            {
              out += this.renderer.paragraph(this.parseInline(token.tokens));
              continue;
            }

          case 'text':
            {
              body = token.tokens ? this.parseInline(token.tokens) : token.text;

              while (i + 1 < l && tokens[i + 1].type === 'text') {
                token = tokens[++i];
                body += '\n' + (token.tokens ? this.parseInline(token.tokens) : token.text);
              }

              out += top ? this.renderer.paragraph(body) : body;
              continue;
            }

          default:
            {
              var errMsg = 'Token with "' + token.type + '" type was not found.';

              if (this.options.silent) {
                console.error(errMsg);
                return;
              } else {
                throw new Error(errMsg);
              }
            }
        }
      }

      return out;
    }
    /**
     * Parse Inline Tokens
     */
    ;

    _proto.parseInline = function parseInline(tokens, renderer) {
      renderer = renderer || this.renderer;
      var out = '',
          i,
          token;
      var l = tokens.length;

      for (i = 0; i < l; i++) {
        token = tokens[i];

        switch (token.type) {
          case 'escape':
            {
              out += renderer.text(token.text);
              break;
            }

          case 'html':
            {
              out += renderer.html(token.text);
              break;
            }

          case 'link':
            {
              out += renderer.link(token.href, token.title, this.parseInline(token.tokens, renderer));
              break;
            }

          case 'image':
            {
              out += renderer.image(token.href, token.title, token.text);
              break;
            }

          case 'strong':
            {
              out += renderer.strong(this.parseInline(token.tokens, renderer));
              break;
            }

          case 'em':
            {
              out += renderer.em(this.parseInline(token.tokens, renderer));
              break;
            }

          case 'codespan':
            {
              out += renderer.codespan(token.text);
              break;
            }

          case 'br':
            {
              out += renderer.br();
              break;
            }

          case 'del':
            {
              out += renderer.del(this.parseInline(token.tokens, renderer));
              break;
            }

          case 'text':
            {
              out += renderer.text(token.text);
              break;
            }

          default:
            {
              var errMsg = 'Token with "' + token.type + '" type was not found.';

              if (this.options.silent) {
                console.error(errMsg);
                return;
              } else {
                throw new Error(errMsg);
              }
            }
        }
      }

      return out;
    };

    return Parser;
  }();

  var merge$2 = helpers.merge,
      checkSanitizeDeprecation$1 = helpers.checkSanitizeDeprecation,
      escape$2 = helpers.escape;
  var getDefaults = defaults.getDefaults,
      changeDefaults = defaults.changeDefaults,
      defaults$5 = defaults.defaults;
  /**
   * Marked
   */

  function marked(src, opt, callback) {
    // throw error in case of non string input
    if (typeof src === 'undefined' || src === null) {
      throw new Error('marked(): input parameter is undefined or null');
    }

    if (typeof src !== 'string') {
      throw new Error('marked(): input parameter is of type ' + Object.prototype.toString.call(src) + ', string expected');
    }

    if (typeof opt === 'function') {
      callback = opt;
      opt = null;
    }

    opt = merge$2({}, marked.defaults, opt || {});
    checkSanitizeDeprecation$1(opt);

    if (callback) {
      var highlight = opt.highlight;
      var tokens;

      try {
        tokens = Lexer_1.lex(src, opt);
      } catch (e) {
        return callback(e);
      }

      var done = function done(err) {
        var out;

        if (!err) {
          try {
            out = Parser_1.parse(tokens, opt);
          } catch (e) {
            err = e;
          }
        }

        opt.highlight = highlight;
        return err ? callback(err) : callback(null, out);
      };

      if (!highlight || highlight.length < 3) {
        return done();
      }

      delete opt.highlight;
      if (!tokens.length) return done();
      var pending = 0;
      marked.walkTokens(tokens, function (token) {
        if (token.type === 'code') {
          pending++;
          setTimeout(function () {
            highlight(token.text, token.lang, function (err, code) {
              if (err) {
                return done(err);
              }

              if (code != null && code !== token.text) {
                token.text = code;
                token.escaped = true;
              }

              pending--;

              if (pending === 0) {
                done();
              }
            });
          }, 0);
        }
      });

      if (pending === 0) {
        done();
      }

      return;
    }

    try {
      var _tokens = Lexer_1.lex(src, opt);

      if (opt.walkTokens) {
        marked.walkTokens(_tokens, opt.walkTokens);
      }

      return Parser_1.parse(_tokens, opt);
    } catch (e) {
      e.message += '\nPlease report this to https://github.com/markedjs/marked.';

      if (opt.silent) {
        return '<p>An error occurred:</p><pre>' + escape$2(e.message + '', true) + '</pre>';
      }

      throw e;
    }
  }
  /**
   * Options
   */


  marked.options = marked.setOptions = function (opt) {
    merge$2(marked.defaults, opt);
    changeDefaults(marked.defaults);
    return marked;
  };

  marked.getDefaults = getDefaults;
  marked.defaults = defaults$5;
  /**
   * Use Extension
   */

  marked.use = function (extension) {
    var opts = merge$2({}, extension);

    if (extension.renderer) {
      (function () {
        var renderer = marked.defaults.renderer || new Renderer_1();

        var _loop = function _loop(prop) {
          var prevRenderer = renderer[prop];

          renderer[prop] = function () {
            for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
              args[_key] = arguments[_key];
            }

            var ret = extension.renderer[prop].apply(renderer, args);

            if (ret === false) {
              ret = prevRenderer.apply(renderer, args);
            }

            return ret;
          };
        };

        for (var prop in extension.renderer) {
          _loop(prop);
        }

        opts.renderer = renderer;
      })();
    }

    if (extension.tokenizer) {
      (function () {
        var tokenizer = marked.defaults.tokenizer || new Tokenizer_1();

        var _loop2 = function _loop2(prop) {
          var prevTokenizer = tokenizer[prop];

          tokenizer[prop] = function () {
            for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
              args[_key2] = arguments[_key2];
            }

            var ret = extension.tokenizer[prop].apply(tokenizer, args);

            if (ret === false) {
              ret = prevTokenizer.apply(tokenizer, args);
            }

            return ret;
          };
        };

        for (var prop in extension.tokenizer) {
          _loop2(prop);
        }

        opts.tokenizer = tokenizer;
      })();
    }

    if (extension.walkTokens) {
      var walkTokens = marked.defaults.walkTokens;

      opts.walkTokens = function (token) {
        extension.walkTokens(token);

        if (walkTokens) {
          walkTokens(token);
        }
      };
    }

    marked.setOptions(opts);
  };
  /**
   * Run callback for every token
   */


  marked.walkTokens = function (tokens, callback) {
    for (var _iterator = _createForOfIteratorHelperLoose(tokens), _step; !(_step = _iterator()).done;) {
      var token = _step.value;
      callback(token);

      switch (token.type) {
        case 'table':
          {
            for (var _iterator2 = _createForOfIteratorHelperLoose(token.tokens.header), _step2; !(_step2 = _iterator2()).done;) {
              var cell = _step2.value;
              marked.walkTokens(cell, callback);
            }

            for (var _iterator3 = _createForOfIteratorHelperLoose(token.tokens.cells), _step3; !(_step3 = _iterator3()).done;) {
              var row = _step3.value;

              for (var _iterator4 = _createForOfIteratorHelperLoose(row), _step4; !(_step4 = _iterator4()).done;) {
                var _cell = _step4.value;
                marked.walkTokens(_cell, callback);
              }
            }

            break;
          }

        case 'list':
          {
            marked.walkTokens(token.items, callback);
            break;
          }

        default:
          {
            if (token.tokens) {
              marked.walkTokens(token.tokens, callback);
            }
          }
      }
    }
  };
  /**
   * Expose
   */


  marked.Parser = Parser_1;
  marked.parser = Parser_1.parse;
  marked.Renderer = Renderer_1;
  marked.TextRenderer = TextRenderer_1;
  marked.Lexer = Lexer_1;
  marked.lexer = Lexer_1.lex;
  marked.Tokenizer = Tokenizer_1;
  marked.Slugger = Slugger_1;
  marked.parse = marked;
  var marked_1 = marked;

  return marked_1;

})));


/***/ }),

/***/ "ELLl":
/*!*************************************************************!*\
  !*** ./node_modules/codemirror/addon/edit/closebrackets.js ***!
  \*************************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://codemirror.net/LICENSE

(function(mod) {
  if (true) // CommonJS
    mod(__webpack_require__(/*! ../../lib/codemirror */ "VrN/"));
  else {}
})(function(CodeMirror) {
  var defaults = {
    pairs: "()[]{}''\"\"",
    closeBefore: ")]}'\":;>",
    triples: "",
    explode: "[]{}"
  };

  var Pos = CodeMirror.Pos;

  CodeMirror.defineOption("autoCloseBrackets", false, function(cm, val, old) {
    if (old && old != CodeMirror.Init) {
      cm.removeKeyMap(keyMap);
      cm.state.closeBrackets = null;
    }
    if (val) {
      ensureBound(getOption(val, "pairs"))
      cm.state.closeBrackets = val;
      cm.addKeyMap(keyMap);
    }
  });

  function getOption(conf, name) {
    if (name == "pairs" && typeof conf == "string") return conf;
    if (typeof conf == "object" && conf[name] != null) return conf[name];
    return defaults[name];
  }

  var keyMap = {Backspace: handleBackspace, Enter: handleEnter};
  function ensureBound(chars) {
    for (var i = 0; i < chars.length; i++) {
      var ch = chars.charAt(i), key = "'" + ch + "'"
      if (!keyMap[key]) keyMap[key] = handler(ch)
    }
  }
  ensureBound(defaults.pairs + "`")

  function handler(ch) {
    return function(cm) { return handleChar(cm, ch); };
  }

  function getConfig(cm) {
    var deflt = cm.state.closeBrackets;
    if (!deflt || deflt.override) return deflt;
    var mode = cm.getModeAt(cm.getCursor());
    return mode.closeBrackets || deflt;
  }

  function handleBackspace(cm) {
    var conf = getConfig(cm);
    if (!conf || cm.getOption("disableInput")) return CodeMirror.Pass;

    var pairs = getOption(conf, "pairs");
    var ranges = cm.listSelections();
    for (var i = 0; i < ranges.length; i++) {
      if (!ranges[i].empty()) return CodeMirror.Pass;
      var around = charsAround(cm, ranges[i].head);
      if (!around || pairs.indexOf(around) % 2 != 0) return CodeMirror.Pass;
    }
    for (var i = ranges.length - 1; i >= 0; i--) {
      var cur = ranges[i].head;
      cm.replaceRange("", Pos(cur.line, cur.ch - 1), Pos(cur.line, cur.ch + 1), "+delete");
    }
  }

  function handleEnter(cm) {
    var conf = getConfig(cm);
    var explode = conf && getOption(conf, "explode");
    if (!explode || cm.getOption("disableInput")) return CodeMirror.Pass;

    var ranges = cm.listSelections();
    for (var i = 0; i < ranges.length; i++) {
      if (!ranges[i].empty()) return CodeMirror.Pass;
      var around = charsAround(cm, ranges[i].head);
      if (!around || explode.indexOf(around) % 2 != 0) return CodeMirror.Pass;
    }
    cm.operation(function() {
      var linesep = cm.lineSeparator() || "\n";
      cm.replaceSelection(linesep + linesep, null);
      cm.execCommand("goCharLeft");
      ranges = cm.listSelections();
      for (var i = 0; i < ranges.length; i++) {
        var line = ranges[i].head.line;
        cm.indentLine(line, null, true);
        cm.indentLine(line + 1, null, true);
      }
    });
  }

  function contractSelection(sel) {
    var inverted = CodeMirror.cmpPos(sel.anchor, sel.head) > 0;
    return {anchor: new Pos(sel.anchor.line, sel.anchor.ch + (inverted ? -1 : 1)),
            head: new Pos(sel.head.line, sel.head.ch + (inverted ? 1 : -1))};
  }

  function handleChar(cm, ch) {
    var conf = getConfig(cm);
    if (!conf || cm.getOption("disableInput")) return CodeMirror.Pass;

    var pairs = getOption(conf, "pairs");
    var pos = pairs.indexOf(ch);
    if (pos == -1) return CodeMirror.Pass;

    var closeBefore = getOption(conf,"closeBefore");

    var triples = getOption(conf, "triples");

    var identical = pairs.charAt(pos + 1) == ch;
    var ranges = cm.listSelections();
    var opening = pos % 2 == 0;

    var type;
    for (var i = 0; i < ranges.length; i++) {
      var range = ranges[i], cur = range.head, curType;
      var next = cm.getRange(cur, Pos(cur.line, cur.ch + 1));
      if (opening && !range.empty()) {
        curType = "surround";
      } else if ((identical || !opening) && next == ch) {
        if (identical && stringStartsAfter(cm, cur))
          curType = "both";
        else if (triples.indexOf(ch) >= 0 && cm.getRange(cur, Pos(cur.line, cur.ch + 3)) == ch + ch + ch)
          curType = "skipThree";
        else
          curType = "skip";
      } else if (identical && cur.ch > 1 && triples.indexOf(ch) >= 0 &&
                 cm.getRange(Pos(cur.line, cur.ch - 2), cur) == ch + ch) {
        if (cur.ch > 2 && /\bstring/.test(cm.getTokenTypeAt(Pos(cur.line, cur.ch - 2)))) return CodeMirror.Pass;
        curType = "addFour";
      } else if (identical) {
        var prev = cur.ch == 0 ? " " : cm.getRange(Pos(cur.line, cur.ch - 1), cur)
        if (!CodeMirror.isWordChar(next) && prev != ch && !CodeMirror.isWordChar(prev)) curType = "both";
        else return CodeMirror.Pass;
      } else if (opening && (next.length === 0 || /\s/.test(next) || closeBefore.indexOf(next) > -1)) {
        curType = "both";
      } else {
        return CodeMirror.Pass;
      }
      if (!type) type = curType;
      else if (type != curType) return CodeMirror.Pass;
    }

    var left = pos % 2 ? pairs.charAt(pos - 1) : ch;
    var right = pos % 2 ? ch : pairs.charAt(pos + 1);
    cm.operation(function() {
      if (type == "skip") {
        cm.execCommand("goCharRight");
      } else if (type == "skipThree") {
        for (var i = 0; i < 3; i++)
          cm.execCommand("goCharRight");
      } else if (type == "surround") {
        var sels = cm.getSelections();
        for (var i = 0; i < sels.length; i++)
          sels[i] = left + sels[i] + right;
        cm.replaceSelections(sels, "around");
        sels = cm.listSelections().slice();
        for (var i = 0; i < sels.length; i++)
          sels[i] = contractSelection(sels[i]);
        cm.setSelections(sels);
      } else if (type == "both") {
        cm.replaceSelection(left + right, null);
        cm.triggerElectric(left + right);
        cm.execCommand("goCharLeft");
      } else if (type == "addFour") {
        cm.replaceSelection(left + left + left + left, "before");
        cm.execCommand("goCharRight");
      }
    });
  }

  function charsAround(cm, pos) {
    var str = cm.getRange(Pos(pos.line, pos.ch - 1),
                          Pos(pos.line, pos.ch + 1));
    return str.length == 2 ? str : null;
  }

  function stringStartsAfter(cm, pos) {
    var token = cm.getTokenAt(Pos(pos.line, pos.ch + 1))
    return /\bstring/.test(token.type) && token.start == pos.ch &&
      (pos.ch == 0 || !/\bstring/.test(cm.getTokenTypeAt(pos)))
  }
});


/***/ }),

/***/ "FOrL":
/*!********************************************!*\
  !*** ./src/assets/images/icons/nodata.png ***!
  \********************************************/
/*! no static exports found */
/*! exports used: default */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

module.exports = __webpack_require__.p + "static/nodata.a6b3f948.png";

/***/ }),

/***/ "HmJG":
/*!****************************************************************!*\
  !*** ./src/components/markdown-editor/upload-image/index.less ***!
  \****************************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

// extracted by mini-css-extract-plugin

/***/ }),

/***/ "LdHM":
/*!********************************************************!*\
  !*** ./node_modules/rc-select/es/index.js + 6 modules ***!
  \********************************************************/
/*! exports provided: Option, OptGroup, default */
/*! exports used: OptGroup, Option, default */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/classCallCheck.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/createClass.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/createSuper.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/defineProperty.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/inherits.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/objectSpread2.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/objectWithoutProperties.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/slicedToArray.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/typeof.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/classnames/index.js (<- Module is not an ECMAScript module) */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/rc-select/es/TransBtn.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/rc-select/es/generate.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/rc-select/es/utils/commonUtil.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/rc-select/es/utils/valueUtil.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/rc-util/es/Children/toArray.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/rc-util/es/KeyCode.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/rc-util/es/hooks/useMemo.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/rc-util/es/pickAttrs.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/rc-util/es/warning.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/rc-virtual-list/es/index.js */
/*! ModuleConcatenation bailout: Cannot concat with external "window.React" (<- Module is not an ECMAScript module) */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";

// EXPORTS
__webpack_require__.d(__webpack_exports__, "b", function() { return /* reexport */ es_Option; });
__webpack_require__.d(__webpack_exports__, "a", function() { return /* reexport */ es_OptGroup; });

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/classCallCheck.js
var classCallCheck = __webpack_require__("1OyB");

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/createClass.js
var createClass = __webpack_require__("vuIU");

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/inherits.js
var inherits = __webpack_require__("Ji7U");

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/createSuper.js + 1 modules
var createSuper = __webpack_require__("LK+K");

// EXTERNAL MODULE: external "window.React"
var external_window_React_ = __webpack_require__("cDcd");

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/defineProperty.js
var defineProperty = __webpack_require__("rePB");

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/objectWithoutProperties.js
var objectWithoutProperties = __webpack_require__("Ff2n");

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/slicedToArray.js + 1 modules
var slicedToArray = __webpack_require__("ODXe");

// EXTERNAL MODULE: ./node_modules/rc-util/es/KeyCode.js
var KeyCode = __webpack_require__("4IlW");

// EXTERNAL MODULE: ./node_modules/rc-util/es/pickAttrs.js
var pickAttrs = __webpack_require__("bX4T");

// EXTERNAL MODULE: ./node_modules/rc-util/es/hooks/useMemo.js
var useMemo = __webpack_require__("YrtM");

// EXTERNAL MODULE: ./node_modules/classnames/index.js
var classnames = __webpack_require__("TSYQ");
var classnames_default = /*#__PURE__*/__webpack_require__.n(classnames);

// EXTERNAL MODULE: ./node_modules/rc-virtual-list/es/index.js + 19 modules
var es = __webpack_require__("+nKL");

// EXTERNAL MODULE: ./node_modules/rc-select/es/TransBtn.js
var TransBtn = __webpack_require__("8OUc");

// CONCATENATED MODULE: ./node_modules/rc-select/es/OptionList.js










/**
 * Using virtual list of option display.
 * Will fallback to dom if use customize render.
 */

var OptionList_OptionList = function OptionList(_ref, ref) {
  var prefixCls = _ref.prefixCls,
      id = _ref.id,
      flattenOptions = _ref.flattenOptions,
      childrenAsData = _ref.childrenAsData,
      values = _ref.values,
      searchValue = _ref.searchValue,
      multiple = _ref.multiple,
      defaultActiveFirstOption = _ref.defaultActiveFirstOption,
      height = _ref.height,
      itemHeight = _ref.itemHeight,
      notFoundContent = _ref.notFoundContent,
      open = _ref.open,
      menuItemSelectedIcon = _ref.menuItemSelectedIcon,
      virtual = _ref.virtual,
      onSelect = _ref.onSelect,
      onToggleOpen = _ref.onToggleOpen,
      onActiveValue = _ref.onActiveValue,
      onScroll = _ref.onScroll,
      onMouseEnter = _ref.onMouseEnter;
  var itemPrefixCls = "".concat(prefixCls, "-item");
  var memoFlattenOptions = Object(useMemo["a" /* default */])(function () {
    return flattenOptions;
  }, [open, flattenOptions], function (prev, next) {
    return next[0] && prev[1] !== next[1];
  }); // =========================== List ===========================

  var listRef = external_window_React_["useRef"](null);

  var onListMouseDown = function onListMouseDown(event) {
    event.preventDefault();
  };

  var scrollIntoView = function scrollIntoView(index) {
    if (listRef.current) {
      listRef.current.scrollTo({
        index: index
      });
    }
  }; // ========================== Active ==========================


  var getEnabledActiveIndex = function getEnabledActiveIndex(index) {
    var offset = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1;
    var len = memoFlattenOptions.length;

    for (var i = 0; i < len; i += 1) {
      var current = (index + i * offset + len) % len;
      var _memoFlattenOptions$c = memoFlattenOptions[current],
          group = _memoFlattenOptions$c.group,
          data = _memoFlattenOptions$c.data;

      if (!group && !data.disabled) {
        return current;
      }
    }

    return -1;
  };

  var _React$useState = external_window_React_["useState"](function () {
    return getEnabledActiveIndex(0);
  }),
      _React$useState2 = Object(slicedToArray["a" /* default */])(_React$useState, 2),
      activeIndex = _React$useState2[0],
      setActiveIndex = _React$useState2[1];

  var setActive = function setActive(index) {
    setActiveIndex(index); // Trigger active event

    var flattenItem = memoFlattenOptions[index];

    if (!flattenItem) {
      onActiveValue(null, -1);
      return;
    }

    onActiveValue(flattenItem.data.value, index);
  }; // Auto active first item when list length or searchValue changed


  external_window_React_["useEffect"](function () {
    setActive(defaultActiveFirstOption !== false ? getEnabledActiveIndex(0) : -1);
  }, [memoFlattenOptions.length, searchValue]); // Auto scroll to item position in single mode

  external_window_React_["useEffect"](function () {
    /**
     * React will skip `onChange` when component update.
     * `setActive` function will call root accessibility state update which makes re-render.
     * So we need to delay to let Input component trigger onChange first.
     */
    var timeoutId = setTimeout(function () {
      if (!multiple && open && values.size === 1) {
        var value = Array.from(values)[0];
        var index = memoFlattenOptions.findIndex(function (_ref2) {
          var data = _ref2.data;
          return data.value === value;
        });
        setActive(index);
        scrollIntoView(index);
      }
    });
    return function () {
      return clearTimeout(timeoutId);
    };
  }, [open]); // ========================== Values ==========================

  var onSelectValue = function onSelectValue(value) {
    if (value !== undefined) {
      onSelect(value, {
        selected: !values.has(value)
      });
    } // Single mode should always close by select


    if (!multiple) {
      onToggleOpen(false);
    }
  }; // ========================= Keyboard =========================


  external_window_React_["useImperativeHandle"](ref, function () {
    return {
      onKeyDown: function onKeyDown(event) {
        var which = event.which;

        switch (which) {
          // >>> Arrow keys
          case KeyCode["a" /* default */].UP:
          case KeyCode["a" /* default */].DOWN:
            {
              var offset = 0;

              if (which === KeyCode["a" /* default */].UP) {
                offset = -1;
              } else if (which === KeyCode["a" /* default */].DOWN) {
                offset = 1;
              }

              if (offset !== 0) {
                var nextActiveIndex = getEnabledActiveIndex(activeIndex + offset, offset);
                scrollIntoView(nextActiveIndex);
                setActive(nextActiveIndex);
              }

              break;
            }
          // >>> Select

          case KeyCode["a" /* default */].ENTER:
            {
              // value
              var item = memoFlattenOptions[activeIndex];

              if (item && !item.data.disabled) {
                onSelectValue(item.data.value);
              } else {
                onSelectValue(undefined);
              }

              if (open) {
                event.preventDefault();
              }

              break;
            }
          // >>> Close

          case KeyCode["a" /* default */].ESC:
            {
              onToggleOpen(false);
            }
        }
      },
      onKeyUp: function onKeyUp() {},
      scrollTo: function scrollTo(index) {
        scrollIntoView(index);
      }
    };
  }); // ========================== Render ==========================

  if (memoFlattenOptions.length === 0) {
    return external_window_React_["createElement"]("div", {
      role: "listbox",
      id: "".concat(id, "_list"),
      className: "".concat(itemPrefixCls, "-empty"),
      onMouseDown: onListMouseDown
    }, notFoundContent);
  }

  function renderItem(index) {
    var item = memoFlattenOptions[index];
    if (!item) return null;
    var itemData = item.data || {};
    var value = itemData.value,
        label = itemData.label,
        children = itemData.children;
    var attrs = Object(pickAttrs["a" /* default */])(itemData, true);
    var mergedLabel = childrenAsData ? children : label;
    return item ? external_window_React_["createElement"]("div", Object.assign({
      "aria-label": typeof mergedLabel === 'string' ? mergedLabel : null
    }, attrs, {
      key: index,
      role: "option",
      id: "".concat(id, "_list_").concat(index),
      "aria-selected": values.has(value)
    }), value) : null;
  }

  return external_window_React_["createElement"](external_window_React_["Fragment"], null, external_window_React_["createElement"]("div", {
    role: "listbox",
    id: "".concat(id, "_list"),
    style: {
      height: 0,
      width: 0,
      overflow: 'hidden'
    }
  }, renderItem(activeIndex - 1), renderItem(activeIndex), renderItem(activeIndex + 1)), external_window_React_["createElement"](es["a" /* default */], {
    itemKey: "key",
    ref: listRef,
    data: memoFlattenOptions,
    height: height,
    itemHeight: itemHeight,
    fullHeight: false,
    onMouseDown: onListMouseDown,
    onScroll: onScroll,
    virtual: virtual,
    onMouseEnter: onMouseEnter
  }, function (_ref3, itemIndex) {
    var _classNames;

    var group = _ref3.group,
        groupOption = _ref3.groupOption,
        data = _ref3.data;
    var label = data.label,
        key = data.key; // Group

    if (group) {
      return external_window_React_["createElement"]("div", {
        className: classnames_default()(itemPrefixCls, "".concat(itemPrefixCls, "-group"))
      }, label !== undefined ? label : key);
    }

    var disabled = data.disabled,
        value = data.value,
        title = data.title,
        children = data.children,
        style = data.style,
        className = data.className,
        otherProps = Object(objectWithoutProperties["a" /* default */])(data, ["disabled", "value", "title", "children", "style", "className"]); // Option


    var selected = values.has(value);
    var optionPrefixCls = "".concat(itemPrefixCls, "-option");
    var optionClassName = classnames_default()(itemPrefixCls, optionPrefixCls, className, (_classNames = {}, Object(defineProperty["a" /* default */])(_classNames, "".concat(optionPrefixCls, "-grouped"), groupOption), Object(defineProperty["a" /* default */])(_classNames, "".concat(optionPrefixCls, "-active"), activeIndex === itemIndex && !disabled), Object(defineProperty["a" /* default */])(_classNames, "".concat(optionPrefixCls, "-disabled"), disabled), Object(defineProperty["a" /* default */])(_classNames, "".concat(optionPrefixCls, "-selected"), selected), _classNames));
    var mergedLabel = childrenAsData ? children : label;
    var iconVisible = !menuItemSelectedIcon || typeof menuItemSelectedIcon === 'function' || selected;
    return external_window_React_["createElement"]("div", Object.assign({}, otherProps, {
      "aria-selected": selected,
      className: optionClassName,
      title: title,
      onMouseMove: function onMouseMove() {
        if (activeIndex === itemIndex || disabled) {
          return;
        }

        setActive(itemIndex);
      },
      onClick: function onClick() {
        if (!disabled) {
          onSelectValue(value);
        }
      },
      style: style
    }), external_window_React_["createElement"]("div", {
      className: "".concat(optionPrefixCls, "-content")
    }, mergedLabel || value), external_window_React_["isValidElement"](menuItemSelectedIcon) || selected, iconVisible && external_window_React_["createElement"](TransBtn["a" /* default */], {
      className: "".concat(itemPrefixCls, "-option-state"),
      customizeIcon: menuItemSelectedIcon,
      customizeIconProps: {
        isSelected: selected
      }
    }, selected ? '✓' : null));
  }));
};

var RefOptionList = external_window_React_["forwardRef"](OptionList_OptionList);
RefOptionList.displayName = 'OptionList';
/* harmony default export */ var es_OptionList = (RefOptionList);
// CONCATENATED MODULE: ./node_modules/rc-select/es/Option.js
/** This is a placeholder, not real render in dom */
var Option = function Option() {
  return null;
};

Option.isSelectOption = true;
/* harmony default export */ var es_Option = (Option);
// CONCATENATED MODULE: ./node_modules/rc-select/es/OptGroup.js
/** This is a placeholder, not real render in dom */
var OptGroup = function OptGroup() {
  return null;
};

OptGroup.isSelectOptGroup = true;
/* harmony default export */ var es_OptGroup = (OptGroup);
// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/objectSpread2.js
var objectSpread2 = __webpack_require__("VTBJ");

// EXTERNAL MODULE: ./node_modules/rc-util/es/Children/toArray.js
var toArray = __webpack_require__("Zm9Q");

// CONCATENATED MODULE: ./node_modules/rc-select/es/utils/legacyUtil.js





function convertNodeToOption(node) {
  var key = node.key,
      _node$props = node.props,
      children = _node$props.children,
      value = _node$props.value,
      restProps = Object(objectWithoutProperties["a" /* default */])(_node$props, ["children", "value"]);

  return Object(objectSpread2["a" /* default */])({
    key: key,
    value: value !== undefined ? value : key,
    children: children
  }, restProps);
}

function convertChildrenToData(nodes) {
  var optionOnly = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
  return Object(toArray["a" /* default */])(nodes).map(function (node, index) {
    if (!external_window_React_["isValidElement"](node) || !node.type) {
      return null;
    }

    var isSelectOptGroup = node.type.isSelectOptGroup,
        key = node.key,
        _node$props2 = node.props,
        children = _node$props2.children,
        restProps = Object(objectWithoutProperties["a" /* default */])(_node$props2, ["children"]);

    if (optionOnly || !isSelectOptGroup) {
      return convertNodeToOption(node);
    }

    return Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({
      key: "__RC_SELECT_GRP__".concat(key === null ? index : key, "__"),
      label: key
    }, restProps), {}, {
      options: convertChildrenToData(children)
    });
  }).filter(function (data) {
    return data;
  });
}
// EXTERNAL MODULE: ./node_modules/rc-select/es/utils/valueUtil.js
var valueUtil = __webpack_require__("2Qr1");

// EXTERNAL MODULE: ./node_modules/rc-select/es/generate.js + 11 modules
var generate = __webpack_require__("qNPg");

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/typeof.js
var esm_typeof = __webpack_require__("U8pU");

// EXTERNAL MODULE: ./node_modules/rc-util/es/warning.js
var warning = __webpack_require__("Kwbf");

// EXTERNAL MODULE: ./node_modules/rc-select/es/utils/commonUtil.js
var commonUtil = __webpack_require__("WKfj");

// CONCATENATED MODULE: ./node_modules/rc-select/es/utils/warningPropsUtil.js







function warningProps(props) {
  var mode = props.mode,
      options = props.options,
      children = props.children,
      backfill = props.backfill,
      allowClear = props.allowClear,
      placeholder = props.placeholder,
      getInputElement = props.getInputElement,
      showSearch = props.showSearch,
      onSearch = props.onSearch,
      defaultOpen = props.defaultOpen,
      autoFocus = props.autoFocus,
      labelInValue = props.labelInValue,
      value = props.value,
      inputValue = props.inputValue,
      optionLabelProp = props.optionLabelProp;
  var multiple = mode === 'multiple' || mode === 'tags';
  var mergedShowSearch = showSearch !== undefined ? showSearch : multiple || mode === 'combobox';
  var mergedOptions = options || convertChildrenToData(children); // `tags` should not set option as disabled

  Object(warning["a" /* default */])(mode !== 'tags' || mergedOptions.every(function (opt) {
    return !opt.disabled;
  }), 'Please avoid setting option to disabled in tags mode since user can always type text as tag.'); // `combobox` & `tags` should option be `string` type

  if (mode === 'tags' || mode === 'combobox') {
    var hasNumberValue = mergedOptions.some(function (item) {
      if (item.options) {
        return item.options.some(function (opt) {
          return typeof ('value' in opt ? opt.value : opt.key) === 'number';
        });
      }

      return typeof ('value' in item ? item.value : item.key) === 'number';
    });
    Object(warning["a" /* default */])(!hasNumberValue, '`value` of Option should not use number type when `mode` is `tags` or `combobox`.');
  } // `combobox` should not use `optionLabelProp`


  Object(warning["a" /* default */])(mode !== 'combobox' || !optionLabelProp, '`combobox` mode not support `optionLabelProp`. Please set `value` on Option directly.'); // Only `combobox` support `backfill`

  Object(warning["a" /* default */])(mode === 'combobox' || !backfill, '`backfill` only works with `combobox` mode.'); // Only `combobox` support `getInputElement`

  Object(warning["a" /* default */])(mode === 'combobox' || !getInputElement, '`getInputElement` only work with `combobox` mode.'); // Customize `getInputElement` should not use `allowClear` & `placeholder`

  Object(warning["b" /* noteOnce */])(mode !== 'combobox' || !getInputElement || !allowClear || !placeholder, 'Customize `getInputElement` should customize clear and placeholder logic instead of configuring `allowClear` and `placeholder`.'); // `onSearch` should use in `combobox` or `showSearch`

  if (onSearch && !mergedShowSearch && mode !== 'combobox' && mode !== 'tags') {
    Object(warning["a" /* default */])(false, '`onSearch` should work with `showSearch` instead of use alone.');
  }

  Object(warning["b" /* noteOnce */])(!defaultOpen || autoFocus, '`defaultOpen` makes Select open without focus which means it will not close by click outside. You can set `autoFocus` if needed.');

  if (value !== undefined && value !== null) {
    var values = Object(commonUtil["d" /* toArray */])(value);
    Object(warning["a" /* default */])(!labelInValue || values.every(function (val) {
      return Object(esm_typeof["a" /* default */])(val) === 'object' && ('key' in val || 'value' in val);
    }), '`value` should in shape of `{ value: string | number, label?: ReactNode }` when you set `labelInValue` to `true`');
    Object(warning["a" /* default */])(!multiple || Array.isArray(value), '`value` should be array when `mode` is `multiple` or `tags`');
  } // Syntactic sugar should use correct children type


  if (children) {
    var invalidateChildType = null;
    Object(toArray["a" /* default */])(children).some(function (node) {
      if (!external_window_React_["isValidElement"](node) || !node.type) {
        return false;
      }

      var type = node.type;

      if (type.isSelectOption) {
        return false;
      }

      if (type.isSelectOptGroup) {
        var allChildrenValid = Object(toArray["a" /* default */])(node.props.children).every(function (subNode) {
          if (!external_window_React_["isValidElement"](subNode) || !node.type || subNode.type.isSelectOption) {
            return true;
          }

          invalidateChildType = subNode.type;
          return false;
        });

        if (allChildrenValid) {
          return false;
        }

        return true;
      }

      invalidateChildType = type;
      return true;
    });

    if (invalidateChildType) {
      Object(warning["a" /* default */])(false, "`children` should be `Select.Option` or `Select.OptGroup` instead of `".concat(invalidateChildType.displayName || invalidateChildType.name || invalidateChildType, "`."));
    }

    Object(warning["a" /* default */])(inputValue === undefined, '`inputValue` is deprecated, please use `searchValue` instead.');
  }
}

/* harmony default export */ var warningPropsUtil = (warningProps);
// CONCATENATED MODULE: ./node_modules/rc-select/es/Select.js





/**
 * To match accessibility requirement, we always provide an input in the component.
 * Other element will not set `tabIndex` to avoid `onBlur` sequence problem.
 * For focused select, we set `aria-live="polite"` to update the accessibility content.
 *
 * ref:
 * - keyboard: https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/Roles/listbox_role#Keyboard_interactions
 *
 * New api:
 * - listHeight
 * - listItemHeight
 * - component
 *
 * Remove deprecated api:
 * - multiple
 * - tags
 * - combobox
 * - firstActiveValue
 * - dropdownMenuStyle
 * - openClassName (Not list in api)
 *
 * Update:
 * - `backfill` only support `combobox` mode
 * - `combobox` mode not support `labelInValue` since it's meaningless
 * - `getInputElement` only support `combobox` mode
 * - `onChange` return OptionData instead of ReactNode
 * - `filterOption` `onChange` `onSelect` accept OptionData instead of ReactNode
 * - `combobox` mode trigger `onChange` will get `undefined` if no `value` match in Option
 * - `combobox` mode not support `optionLabelProp`
 */








var RefSelect = Object(generate["a" /* default */])({
  prefixCls: 'rc-select',
  components: {
    optionList: es_OptionList
  },
  convertChildrenToData: convertChildrenToData,
  flattenOptions: valueUtil["d" /* flattenOptions */],
  getLabeledValue: valueUtil["e" /* getLabeledValue */],
  filterOptions: valueUtil["b" /* filterOptions */],
  isValueDisabled: valueUtil["g" /* isValueDisabled */],
  findValueOption: valueUtil["c" /* findValueOption */],
  warningProps: warningPropsUtil,
  fillOptionsWithMissingValue: valueUtil["a" /* fillOptionsWithMissingValue */]
});
/**
 * Typescript not support generic with function component,
 * we have to wrap an class component to handle this.
 */

var Select_Select = /*#__PURE__*/function (_React$Component) {
  Object(inherits["a" /* default */])(Select, _React$Component);

  var _super = Object(createSuper["a" /* default */])(Select);

  function Select() {
    var _this;

    Object(classCallCheck["a" /* default */])(this, Select);

    _this = _super.apply(this, arguments);
    _this.selectRef = external_window_React_["createRef"]();

    _this.focus = function () {
      _this.selectRef.current.focus();
    };

    _this.blur = function () {
      _this.selectRef.current.blur();
    };

    return _this;
  }

  Object(createClass["a" /* default */])(Select, [{
    key: "render",
    value: function render() {
      return external_window_React_["createElement"](RefSelect, Object.assign({
        ref: this.selectRef
      }, this.props));
    }
  }]);

  return Select;
}(external_window_React_["Component"]);

Select_Select.Option = es_Option;
Select_Select.OptGroup = es_OptGroup;
/* harmony default export */ var es_Select = (Select_Select);
// CONCATENATED MODULE: ./node_modules/rc-select/es/index.js




/* harmony default export */ var rc_select_es = __webpack_exports__["c"] = (es_Select);

/***/ }),

/***/ "M8RZ":
/*!**********************************!*\
  !*** ./src/components/modal.tsx ***!
  \**********************************/
/*! exports provided: default */
/*! exports used: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return Dialog; });
/* harmony import */ var _Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_classCallCheck__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/classCallCheck */ "fWQN");
/* harmony import */ var _Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_createClass__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/createClass */ "mtLc");
/* harmony import */ var _Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_inherits__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/inherits */ "yKVA");
/* harmony import */ var _Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_createSuper__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/createSuper */ "879j");
/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! react */ "cDcd");
/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_4___default = /*#__PURE__*/__webpack_require__.n(react__WEBPACK_IMPORTED_MODULE_4__);
/* harmony import */ var react_dom__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! react-dom */ "faye");
/* harmony import */ var react_dom__WEBPACK_IMPORTED_MODULE_5___default = /*#__PURE__*/__webpack_require__.n(react_dom__WEBPACK_IMPORTED_MODULE_5__);







var Dialog = /*#__PURE__*/function (_React$Component) {
  Object(_Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_inherits__WEBPACK_IMPORTED_MODULE_2__[/* default */ "a"])(Dialog, _React$Component);

  var _super = Object(_Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_createSuper__WEBPACK_IMPORTED_MODULE_3__[/* default */ "a"])(Dialog);

  function Dialog(props) {
    var _this;

    Object(_Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_classCallCheck__WEBPACK_IMPORTED_MODULE_0__[/* default */ "a"])(this, Dialog);

    _this = _super.call(this, props);
    var doc = window.document;
    _this.node = doc.createElement('div');
    doc.body.appendChild(_this.node);
    return _this;
  }

  Object(_Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_createClass__WEBPACK_IMPORTED_MODULE_1__[/* default */ "a"])(Dialog, [{
    key: "render",
    value: function render() {
      var children = this.props.children;
      return /*#__PURE__*/Object(react_dom__WEBPACK_IMPORTED_MODULE_5__["createPortal"])(children, this.node);
    }
  }, {
    key: "componentWillUnmount",
    value: function componentWillUnmount() {
      window.document.body.removeChild(this.node);
    }
  }]);

  return Dialog;
}(react__WEBPACK_IMPORTED_MODULE_4___default.a.Component);



/***/ }),

/***/ "NcEG":
/*!****************************************************************************!*\
  !*** ./src/pages/User/Detail/Topics/Exercise/Detail/index.tsx + 6 modules ***!
  \****************************************************************************/
/*! exports provided: default */
/*! all exports used */
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/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/antd/es/divider/index.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/antd/es/divider/style/index.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/antd/es/form/index.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/antd/es/form/style/index.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/antd/es/input-number/index.js */
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/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/antd/es/input/index.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/antd/es/input/style/index.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/antd/es/layout/index.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/antd/es/layout/style/index.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/antd/es/menu/index.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/antd/es/menu/style/index.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/antd/es/message/index.js */
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/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/antd/es/radio/index.js */
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/*! ModuleConcatenation bailout: Cannot concat with external "window.React" (<- Module is not an ECMAScript module) */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
// ESM COMPAT FLAG
__webpack_require__.r(__webpack_exports__);

// EXTERNAL MODULE: ./node_modules/antd/es/button/style/index.js
var style = __webpack_require__("+L6B");

// EXTERNAL MODULE: ./node_modules/antd/es/button/index.js
var es_button = __webpack_require__("2/Rp");

// EXTERNAL MODULE: ./node_modules/antd/es/input/style/index.js
var input_style = __webpack_require__("5NDa");

// EXTERNAL MODULE: ./node_modules/antd/es/input/index.js + 3 modules
var input = __webpack_require__("5rEg");

// EXTERNAL MODULE: ./node_modules/antd/es/tabs/style/index.js
var tabs_style = __webpack_require__("Znn+");

// EXTERNAL MODULE: ./node_modules/antd/es/tabs/index.js
var tabs = __webpack_require__("ZTPi");

// EXTERNAL MODULE: ./node_modules/antd/es/modal/style/index.js
var modal_style = __webpack_require__("2qtc");

// EXTERNAL MODULE: ./node_modules/antd/es/modal/index.js + 7 modules
var modal = __webpack_require__("kLXV");

// EXTERNAL MODULE: ./node_modules/antd/es/row/style/index.js
var row_style = __webpack_require__("14J3");

// EXTERNAL MODULE: ./node_modules/antd/es/row/index.js
var row = __webpack_require__("BMrR");

// EXTERNAL MODULE: ./node_modules/antd/es/col/style/index.js
var col_style = __webpack_require__("jCWc");

// EXTERNAL MODULE: ./node_modules/antd/es/col/index.js
var col = __webpack_require__("kPKH");

// EXTERNAL MODULE: ./node_modules/antd/es/breadcrumb/style/index.js
var breadcrumb_style = __webpack_require__("sPJy");

// EXTERNAL MODULE: ./node_modules/antd/es/breadcrumb/index.js + 3 modules
var breadcrumb = __webpack_require__("bE4q");

// EXTERNAL MODULE: ./node_modules/antd/es/divider/style/index.js
var divider_style = __webpack_require__("/zsF");

// EXTERNAL MODULE: ./node_modules/antd/es/divider/index.js
var divider = __webpack_require__("PArb");

// EXTERNAL MODULE: ./node_modules/antd/es/message/style/index.js
var message_style = __webpack_require__("miYZ");

// EXTERNAL MODULE: ./node_modules/antd/es/message/index.js + 1 modules
var message = __webpack_require__("tsqr");

// EXTERNAL MODULE: ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/asyncToGenerator.js
var asyncToGenerator = __webpack_require__("9og8");

// EXTERNAL MODULE: ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/objectSpread2.js
var objectSpread2 = __webpack_require__("k1fw");

// EXTERNAL MODULE: ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/toConsumableArray.js + 2 modules
var toConsumableArray = __webpack_require__("oBTY");

// EXTERNAL MODULE: ./node_modules/antd/es/form/style/index.js
var form_style = __webpack_require__("y8nQ");

// EXTERNAL MODULE: ./node_modules/antd/es/form/index.js + 11 modules
var es_form = __webpack_require__("Vl3Y");

// EXTERNAL MODULE: ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/slicedToArray.js + 1 modules
var slicedToArray = __webpack_require__("tJVT");

// EXTERNAL MODULE: ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/objectWithoutProperties.js + 1 modules
var objectWithoutProperties = __webpack_require__("PpiC");

// EXTERNAL MODULE: ./node_modules/antd/es/layout/style/index.js
var layout_style = __webpack_require__("B9cy");

// EXTERNAL MODULE: ./node_modules/antd/es/layout/index.js
var layout = __webpack_require__("Ol7k");

// EXTERNAL MODULE: ./node_modules/antd/es/menu/style/index.js
var menu_style = __webpack_require__("lUTK");

// EXTERNAL MODULE: ./node_modules/antd/es/menu/index.js + 3 modules
var menu = __webpack_require__("BvKs");

// EXTERNAL MODULE: ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/regenerator/index.js
var regenerator = __webpack_require__("WmNS");
var regenerator_default = /*#__PURE__*/__webpack_require__.n(regenerator);

// EXTERNAL MODULE: external "window.React"
var external_window_React_ = __webpack_require__("cDcd");
var external_window_React_default = /*#__PURE__*/__webpack_require__.n(external_window_React_);

// EXTERNAL MODULE: ./node_modules/react-router/esm/react-router.js
var react_router = __webpack_require__("Ty5D");

// EXTERNAL MODULE: ./node_modules/react-router-dom/esm/react-router-dom.js
var react_router_dom = __webpack_require__("55Ip");

// EXTERNAL MODULE: ./src/.umi-production/core/umiExports.ts + 17 modules
var umiExports = __webpack_require__("9kvl");

// EXTERNAL MODULE: ./src/service/polls.ts
var service_polls = __webpack_require__("tgas");

// EXTERNAL MODULE: ./src/service/user.ts
var service_user = __webpack_require__("jb+D");

// EXTERNAL MODULE: ./src/components/NoData/index.tsx
var NoData = __webpack_require__("BdwD");

// EXTERNAL MODULE: ./node_modules/antd/es/input-number/style/index.js
var input_number_style = __webpack_require__("giR+");

// EXTERNAL MODULE: ./node_modules/antd/es/input-number/index.js
var input_number = __webpack_require__("fyUT");

// EXTERNAL MODULE: ./node_modules/antd/es/checkbox/style/index.js
var checkbox_style = __webpack_require__("sRBo");

// EXTERNAL MODULE: ./node_modules/antd/es/checkbox/index.js + 2 modules
var es_checkbox = __webpack_require__("kaz8");

// EXTERNAL MODULE: ./node_modules/antd/es/tooltip/style/index.js
var tooltip_style = __webpack_require__("5Dmo");

// EXTERNAL MODULE: ./node_modules/antd/es/tooltip/index.js + 1 modules
var tooltip = __webpack_require__("3S7+");

// EXTERNAL MODULE: ./src/service/exercise.ts
var exercise = __webpack_require__("V0Rq");

// EXTERNAL MODULE: ./src/components/markdown-editor/index.tsx + 6 modules
var markdown_editor = __webpack_require__("Ot1p");

// EXTERNAL MODULE: ./src/components/RenderHtml/index.tsx + 1 modules
var RenderHtml = __webpack_require__("9Bee");

// EXTERNAL MODULE: ./src/pages/User/Detail/Topics/Exercise/Detail/components/editor.less?modules
var editormodules = __webpack_require__("xvzu");
var editormodules_default = /*#__PURE__*/__webpack_require__.n(editormodules);

// CONCATENATED MODULE: ./src/pages/User/Detail/Topics/Exercise/Detail/components/MultipleEditor/index.tsx




























var tagList = ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'];

var MultipleEditor_SingleEditor = function SingleEditor(_ref, ref) {
  var problemset = _ref.problemset,
      globalSetting = _ref.globalSetting,
      loading = _ref.loading,
      dispatch = _ref.dispatch,
      _ref$onRef = _ref.onRef,
      onRef = _ref$onRef === void 0 ? function () {} : _ref$onRef,
      editData = _ref.editData,
      props = Object(objectWithoutProperties["a" /* default */])(_ref, ["problemset", "globalSetting", "loading", "dispatch", "onRef", "editData"]);

  var _useState = Object(external_window_React_["useState"])([]),
      _useState2 = Object(slicedToArray["a" /* default */])(_useState, 2),
      questionChoiceList = _useState2[0],
      setQuestionChoiceList = _useState2[1];

  var _useState3 = Object(external_window_React_["useState"])(),
      _useState4 = Object(slicedToArray["a" /* default */])(_useState3, 2),
      activeEditor = _useState4[0],
      setActiveEditor = _useState4[1];

  var _useState5 = Object(external_window_React_["useState"])([]),
      _useState6 = Object(slicedToArray["a" /* default */])(_useState5, 2),
      activeAnswer = _useState6[0],
      setActiveAnswer = _useState6[1];

  var _useState7 = Object(external_window_React_["useState"])(''),
      _useState8 = Object(slicedToArray["a" /* default */])(_useState7, 2),
      title = _useState8[0],
      setTitle = _useState8[1];

  var _useState9 = Object(external_window_React_["useState"])(5),
      _useState10 = Object(slicedToArray["a" /* default */])(_useState9, 2),
      score = _useState10[0],
      setScore = _useState10[1];

  var _useState11 = Object(external_window_React_["useState"])(false),
      _useState12 = Object(slicedToArray["a" /* default */])(_useState11, 2),
      isEdit = _useState12[0],
      setIsEdit = _useState12[1];

  var params = Object(react_router["i" /* useParams */])();
  Object(external_window_React_["useEffect"])(function () {
    setQuestionChoiceList(['', '', '', '']);
  }, []);
  Object(external_window_React_["useEffect"])(function () {
    if (!(editData !== null && editData !== void 0 && editData.question_choices)) {
      setIsEdit(true);
      return;
    }

    setTitle(editData === null || editData === void 0 ? void 0 : editData.question_title);
    setScore(parseInt(editData === null || editData === void 0 ? void 0 : editData.question_score));
    setQuestionChoiceList(editData === null || editData === void 0 ? void 0 : editData.question_choices.map(function (item) {
      return item.choice_text;
    }));
    var answerIndexs = [];
    editData === null || editData === void 0 ? void 0 : editData.standard_answer.map(function (item, index) {
      answerIndexs.push(item - 1);
    });
    setActiveAnswer(answerIndexs);
  }, [editData]);
  Object(external_window_React_["useImperativeHandle"])(ref, function () {
    return {
      onSave: onSave,
      isEdit: isEdit
    };
  });

  var onSave = /*#__PURE__*/function () {
    var _ref2 = Object(asyncToGenerator["a" /* default */])( /*#__PURE__*/regenerator_default.a.mark(function _callee() {
      var findNotAnswerIndex, choices, res;
      return regenerator_default.a.wrap(function _callee$(_context) {
        while (1) {
          switch (_context.prev = _context.next) {
            case 0:
              if (title) {
                _context.next = 3;
                break;
              }

              message["b" /* default */].info("请您输入题目");

              return _context.abrupt("return", false);

            case 3:
              findNotAnswerIndex = questionChoiceList.findIndex(function (item) {
                return !item;
              });

              if (!(findNotAnswerIndex > -1)) {
                _context.next = 7;
                break;
              }

              message["b" /* default */].info("\u8BF7\u5148\u8F93\u5165 ".concat(tagList[findNotAnswerIndex], " \u9009\u9879\u7684\u5185\u5BB9"));

              return _context.abrupt("return", false);

            case 7:
              if (activeAnswer.length) {
                _context.next = 10;
                break;
              }

              message["b" /* default */].info("请设置本题的正确答案，点击选项A/B...即可完成设置");

              return _context.abrupt("return", false);

            case 10:
              if (!(activeAnswer.length < 1)) {
                _context.next = 13;
                break;
              }

              message["b" /* default */].info("请选择答案");

              return _context.abrupt("return", false);

            case 13:
              choices = questionChoiceList.map(function (item, index) {
                return {
                  choice_text: item,
                  is_answer: activeAnswer.includes(index) ? index + 1 : 0
                };
              });

              if (!editData.question_id) {
                _context.next = 20;
                break;
              }

              _context.next = 17;
              return dispatch({
                type: "exercise/editExerciseQuestion",
                payload: {
                  "id": editData.question_id,
                  "question_title": title,
                  "question_type": 1,
                  "question_score": "5.0",
                  "question_choices": choices.map(function (item) {
                    return item.choice_text;
                  }),
                  "standard_answers": choices.filter(function (item) {
                    return item.is_answer;
                  }).map(function (item) {
                    return item.is_answer;
                  })
                }
              });

            case 17:
              res = _context.sent;
              _context.next = 23;
              break;

            case 20:
              _context.next = 22;
              return dispatch({
                type: "exercise/addExerciseQuestion",
                payload: {
                  "categoryId": params.categoryId,
                  "question_title": title,
                  "question_type": 1,
                  "question_score": "5.0",
                  "question_choices": choices.map(function (item) {
                    return item.choice_text;
                  }),
                  "standard_answers": choices.filter(function (item) {
                    return item.is_answer;
                  }).map(function (item) {
                    return item.is_answer;
                  })
                }
              });

            case 22:
              res = _context.sent;

            case 23:
              if (res.status === 0) {
                message["b" /* default */].success("保存成功");

                setIsEdit(false);
                dispatch({
                  type: "exercise/editExercise",
                  payload: Object(objectSpread2["a" /* default */])({}, params)
                });
              }

            case 24:
            case "end":
              return _context.stop();
          }
        }
      }, _callee);
    }));

    return function onSave() {
      return _ref2.apply(this, arguments);
    };
  }();

  var actionArr = [{
    name: "删除",
    icon: "iconfont c-light-black ml30 icon-shanchu",
    id: "del"
  }, {
    name: "上移",
    icon: "iconfont c-green ml30 icon-shangyi_Hover",
    id: "up"
  }, {
    name: "下移",
    icon: "iconfont c-green ml30 icon-xiayi_moren",
    id: "down"
  }, {
    name: "编辑",
    icon: "iconfont c-green ml30 icon-bianjishijuan3x",
    id: "edit"
  }];

  var actionClick = /*#__PURE__*/function () {
    var _ref3 = Object(asyncToGenerator["a" /* default */])( /*#__PURE__*/regenerator_default.a.mark(function _callee3(item) {
      return regenerator_default.a.wrap(function _callee3$(_context3) {
        while (1) {
          switch (_context3.prev = _context3.next) {
            case 0:
              _context3.t0 = item.id;
              _context3.next = _context3.t0 === "del" ? 3 : _context3.t0 === "up" ? 5 : _context3.t0 === "down" ? 5 : _context3.t0 === "edit" ? 9 : 11;
              break;

            case 3:
              modal["a" /* default */].confirm({
                centered: true,
                okText: '确定',
                cancelText: '取消',
                title: '确认要删除这个问题吗？',
                onOk: function onOk() {
                  return Object(asyncToGenerator["a" /* default */])( /*#__PURE__*/regenerator_default.a.mark(function _callee2() {
                    return regenerator_default.a.wrap(function _callee2$(_context2) {
                      while (1) {
                        switch (_context2.prev = _context2.next) {
                          case 0:
                            _context2.next = 2;
                            return Object(exercise["m" /* exeriseQuestionDelete */])({
                              id: editData.question_id
                            });

                          case 2:
                            dispatch({
                              type: "exercise/editExercise",
                              payload: Object(objectSpread2["a" /* default */])({}, params)
                            });

                          case 3:
                          case "end":
                            return _context2.stop();
                        }
                      }
                    }, _callee2);
                  }))();
                }
              });

              return _context3.abrupt("break", 11);

            case 5:
              _context3.next = 7;
              return dispatch({
                type: "exercise/exeriseMoveUpDown",
                payload: {
                  id: editData.question_id,
                  opr: item.id
                }
              });

            case 7:
              dispatch({
                type: "exercise/editExercise",
                payload: Object(objectSpread2["a" /* default */])({}, params)
              });
              return _context3.abrupt("break", 11);

            case 9:
              setIsEdit(true);
              return _context3.abrupt("break", 11);

            case 11:
            case "end":
              return _context3.stop();
          }
        }
      }, _callee3);
    }));

    return function actionClick(_x) {
      return _ref3.apply(this, arguments);
    };
  }();

  var showList = function showList() {
    var _editData$question_ch;

    return /*#__PURE__*/external_window_React_default.a.createElement("aside", null, /*#__PURE__*/external_window_React_default.a.createElement("div", {
      className: editormodules_default.a.questionType
    }, /*#__PURE__*/external_window_React_default.a.createElement("div", null, /*#__PURE__*/external_window_React_default.a.createElement("span", {
      className: "font16 c-blue"
    }, editData.key, "\u3001\u591A\u9009\u9898"), "\uFF08", editData.question_score, "\u5206\uFF09"), !editData.hideAction && actionArr.map(function (item, index) {
      if (item.id === "up" && editData.key === 1) return null;
      if (item.id === "down" && editData.key === editData.len) return null;
      return /*#__PURE__*/external_window_React_default.a.createElement(tooltip["a" /* default */], {
        key: index,
        placement: "bottom",
        title: item.name
      }, /*#__PURE__*/external_window_React_default.a.createElement("span", {
        onClick: function onClick() {
          return actionClick(item);
        },
        className: item.icon
      }));
    })), /*#__PURE__*/external_window_React_default.a.createElement("div", {
      className: "mt5"
    }, /*#__PURE__*/external_window_React_default.a.createElement(RenderHtml["a" /* default */], {
      value: editData.question_title
    })), /*#__PURE__*/external_window_React_default.a.createElement("div", {
      className: editormodules_default.a.questionChoices
    }, editData === null || editData === void 0 ? void 0 : (_editData$question_ch = editData.question_choices) === null || _editData$question_ch === void 0 ? void 0 : _editData$question_ch.map(function (item, index) {
      return /*#__PURE__*/external_window_React_default.a.createElement(row["a" /* default */], null, /*#__PURE__*/external_window_React_default.a.createElement(col["a" /* default */], null, /*#__PURE__*/external_window_React_default.a.createElement(es_checkbox["a" /* default */], {
        key: index,
        checked: editData.standard_answer.includes(index + 1),
        disabled: true
      }, tagList[index], ".")), /*#__PURE__*/external_window_React_default.a.createElement(col["a" /* default */], {
        flex: "1"
      }, /*#__PURE__*/external_window_React_default.a.createElement("span", {
        className: "c-black font14"
      }, /*#__PURE__*/external_window_React_default.a.createElement(RenderHtml["a" /* default */], {
        value: item.choice_text
      }))));
    })));
  };

  var showEdit = function showEdit() {
    return /*#__PURE__*/external_window_React_default.a.createElement("aside", null, /*#__PURE__*/external_window_React_default.a.createElement("div", {
      className: editormodules_default.a.questionType
    }, /*#__PURE__*/external_window_React_default.a.createElement("div", null, /*#__PURE__*/external_window_React_default.a.createElement("span", {
      className: "font16 c-blue"
    }, "\u9009\u62E9\u9898"), "\uFF08\u5BA2\u89C2\u9898\uFF0C\u7531\u7CFB\u7EDF\u81EA\u52A8\u8BC4\u5206\uFF0C\u8BF7\u8BBE\u7F6E\u6807\u51C6\u7B54\u6848\uFF09")), /*#__PURE__*/external_window_React_default.a.createElement("p", {
      className: editormodules_default.a.titleWrap
    }, /*#__PURE__*/external_window_React_default.a.createElement("span", {
      className: editormodules_default.a.required
    }, "*"), /*#__PURE__*/external_window_React_default.a.createElement("span", {
      className: editormodules_default.a.title
    }, "\u9898\u5E72\uFF1A")), /*#__PURE__*/external_window_React_default.a.createElement(markdown_editor["a" /* default */], {
      id: "single-question-title",
      watch: true,
      height: 155,
      placeholder: "\u8BF7\u60A8\u8F93\u5165\u9898\u5E72",
      defaultValue: title,
      onChange: function onChange(value) {
        return setTitle(value);
      }
    }), /*#__PURE__*/external_window_React_default.a.createElement("p", {
      className: editormodules_default.a.titleWrap
    }, /*#__PURE__*/external_window_React_default.a.createElement("span", {
      className: editormodules_default.a.required
    }, "*"), /*#__PURE__*/external_window_React_default.a.createElement("span", {
      className: editormodules_default.a.title
    }, "\u7B54\u6848\u9009\u9879\uFF1A", /*#__PURE__*/external_window_React_default.a.createElement("span", {
      className: editormodules_default.a.colorGray
    }, "\u70B9\u51FB\u9009\u9879\u53EF\u8BBE\u7F6E\u6B63\u786E\u7B54\u6848"))), questionChoiceList.map(function (item, index) {
      return /*#__PURE__*/external_window_React_default.a.createElement("div", {
        className: editormodules_default.a.choiceWrap,
        key: index
      }, /*#__PURE__*/external_window_React_default.a.createElement(tooltip["a" /* default */], {
        title: "\u70B9\u51FB\u8BBE\u7F6E\u4E3A\u6807\u51C6\u7B54\u6848",
        placement: "left"
      }, /*#__PURE__*/external_window_React_default.a.createElement("div", {
        className: "".concat(editormodules_default.a.answer, " ").concat(activeAnswer.includes(index) ? editormodules_default.a.activeAnswer : ''),
        onClick: function onClick() {
          if (activeAnswer.includes(index)) {
            setActiveAnswer(activeAnswer.filter(function (item) {
              return item !== index;
            }));
          } else {
            setActiveAnswer([].concat(Object(toConsumableArray["a" /* default */])(activeAnswer), [index]));
          }
        }
      }, tagList[index])), /*#__PURE__*/external_window_React_default.a.createElement("div", {
        className: editormodules_default.a.editorWrap
      }, activeEditor === index ? /*#__PURE__*/external_window_React_default.a.createElement(markdown_editor["a" /* default */], {
        id: "single-question-option-".concat(index),
        watch: true,
        height: 155,
        placeholder: "\u8BF7\u60A8\u8F93\u5165\u9009\u9879",
        defaultValue: item,
        onChange: function onChange(value) {
          questionChoiceList[index] = value;
          setQuestionChoiceList(questionChoiceList);
        }
      }) : /*#__PURE__*/external_window_React_default.a.createElement("div", {
        className: editormodules_default.a.htmlWrap,
        onClick: function onClick() {
          return setActiveEditor(index);
        }
      }, /*#__PURE__*/external_window_React_default.a.createElement(RenderHtml["a" /* default */], {
        value: item
      }))), index > 1 && /*#__PURE__*/external_window_React_default.a.createElement(tooltip["a" /* default */], {
        title: "\u5220\u9664"
      }, /*#__PURE__*/external_window_React_default.a.createElement("i", {
        className: "".concat(editormodules_default.a.deleteIcon, " iconfont icon-htmal5icon19"),
        onClick: function onClick() {
          return setQuestionChoiceList(questionChoiceList.filter(function (_, key) {
            return key !== index;
          }));
        }
      })), index < 7 && index === questionChoiceList.length - 1 && /*#__PURE__*/external_window_React_default.a.createElement(tooltip["a" /* default */], {
        title: "\u65B0\u589E\u53C2\u8003\u7B54\u6848"
      }, /*#__PURE__*/external_window_React_default.a.createElement("i", {
        className: "".concat(editormodules_default.a.addIcon, " iconfont icon-roundaddfill ml6"),
        onClick: function onClick() {
          return setQuestionChoiceList([].concat(Object(toConsumableArray["a" /* default */])(questionChoiceList), ['']));
        }
      })));
    }), /*#__PURE__*/external_window_React_default.a.createElement("p", {
      className: "c-orange"
    }, "\u6E29\u99A8\u63D0\u793A\uFF1A\u70B9\u51FB\u9009\u9879\u8F93\u5165\u6846\u53EF\u8BBE\u7F6E\u7B54\u6848\uFF1B\u9009\u4E2D\u7684\u9009\u9879\u5373\u4E3A\u6B63\u786E\u7B54\u6848\uFF0C\u9009\u62E9\u591A\u4E2A\u7B54\u6848\u5373\u4E3A\u591A\u9009\u9898"), /*#__PURE__*/external_window_React_default.a.createElement("p", {
      className: ""
    }, "\u5206\u503C\uFF1A", /*#__PURE__*/external_window_React_default.a.createElement(input_number["a" /* default */], {
      value: score,
      max: 10000,
      min: -1,
      onChange: function onChange(value) {
        setScore(value);
      }
    }), " \u5206"), /*#__PURE__*/external_window_React_default.a.createElement("aside", {
      className: "tr"
    }, editData.question_id && /*#__PURE__*/external_window_React_default.a.createElement(es_button["a" /* default */], {
      type: "default",
      onClick: function onClick() {
        return setIsEdit(false);
      }
    }, "\u53D6\u6D88"), /*#__PURE__*/external_window_React_default.a.createElement(es_button["a" /* default */], {
      className: "ml20",
      type: "primary",
      onClick: function onClick() {
        return onSave();
      }
    }, "\u4FDD\u5B58")));
  };

  return /*#__PURE__*/external_window_React_default.a.createElement("section", {
    className: editormodules_default.a.wrap
  }, !isEdit && showList(), isEdit && showEdit());
};

/* harmony default export */ var MultipleEditor = (Object(umiExports["a" /* connect */])(function (_ref4) {
  var problemset = _ref4.problemset,
      loading = _ref4.loading,
      globalSetting = _ref4.globalSetting;
  return {
    problemset: problemset,
    globalSetting: globalSetting,
    loading: loading.effects
  };
}, null, null, {
  forwardRef: true
})( /*#__PURE__*/Object(external_window_React_["forwardRef"])(MultipleEditor_SingleEditor)));
// EXTERNAL MODULE: ./node_modules/antd/es/radio/style/index.js
var radio_style = __webpack_require__("7Kak");

// EXTERNAL MODULE: ./node_modules/antd/es/radio/index.js + 4 modules
var es_radio = __webpack_require__("9yH6");

// CONCATENATED MODULE: ./src/pages/User/Detail/Topics/Exercise/Detail/components/SingleEditor/index.tsx




























var SingleEditor_tagList = ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'];

var SingleEditor_SingleEditor = function SingleEditor(_ref, ref) {
  var problemset = _ref.problemset,
      globalSetting = _ref.globalSetting,
      loading = _ref.loading,
      dispatch = _ref.dispatch,
      _ref$onRef = _ref.onRef,
      onRef = _ref$onRef === void 0 ? function () {} : _ref$onRef,
      editData = _ref.editData,
      props = Object(objectWithoutProperties["a" /* default */])(_ref, ["problemset", "globalSetting", "loading", "dispatch", "onRef", "editData"]);

  var _useState = Object(external_window_React_["useState"])([]),
      _useState2 = Object(slicedToArray["a" /* default */])(_useState, 2),
      questionChoiceList = _useState2[0],
      setQuestionChoiceList = _useState2[1];

  var _useState3 = Object(external_window_React_["useState"])(),
      _useState4 = Object(slicedToArray["a" /* default */])(_useState3, 2),
      activeEditor = _useState4[0],
      setActiveEditor = _useState4[1];

  var _useState5 = Object(external_window_React_["useState"])([]),
      _useState6 = Object(slicedToArray["a" /* default */])(_useState5, 2),
      activeAnswer = _useState6[0],
      setActiveAnswer = _useState6[1];

  var _useState7 = Object(external_window_React_["useState"])(''),
      _useState8 = Object(slicedToArray["a" /* default */])(_useState7, 2),
      title = _useState8[0],
      setTitle = _useState8[1];

  var _useState9 = Object(external_window_React_["useState"])(0),
      _useState10 = Object(slicedToArray["a" /* default */])(_useState9, 2),
      score = _useState10[0],
      setScore = _useState10[1];

  var _useState11 = Object(external_window_React_["useState"])(false),
      _useState12 = Object(slicedToArray["a" /* default */])(_useState11, 2),
      isEdit = _useState12[0],
      setIsEdit = _useState12[1];

  var params = Object(react_router["i" /* useParams */])();
  Object(external_window_React_["useEffect"])(function () {
    setQuestionChoiceList(['', '', '', '']);
  }, []);
  Object(external_window_React_["useEffect"])(function () {
    if (!(editData !== null && editData !== void 0 && editData.question_choices)) {
      setIsEdit(true);
      return;
    }

    setTitle(editData === null || editData === void 0 ? void 0 : editData.question_title);
    setScore(parseInt(editData === null || editData === void 0 ? void 0 : editData.question_score));
    setQuestionChoiceList(editData === null || editData === void 0 ? void 0 : editData.question_choices.map(function (item) {
      return item.choice_text;
    }));
    var answerIndexs = [];
    editData === null || editData === void 0 ? void 0 : editData.standard_answer.map(function (item, index) {
      answerIndexs.push(item - 1);
    });
    setActiveAnswer(answerIndexs);
  }, [editData]);
  Object(external_window_React_["useImperativeHandle"])(ref, function () {
    return {
      onSave: onSave,
      isEdit: isEdit
    };
  });

  var onSave = /*#__PURE__*/function () {
    var _ref2 = Object(asyncToGenerator["a" /* default */])( /*#__PURE__*/regenerator_default.a.mark(function _callee() {
      var findNotAnswerIndex, choices, res;
      return regenerator_default.a.wrap(function _callee$(_context) {
        while (1) {
          switch (_context.prev = _context.next) {
            case 0:
              if (title) {
                _context.next = 3;
                break;
              }

              message["b" /* default */].info("请您输入题目");

              return _context.abrupt("return", false);

            case 3:
              findNotAnswerIndex = questionChoiceList.findIndex(function (item) {
                return !item;
              });

              if (!(findNotAnswerIndex > -1)) {
                _context.next = 7;
                break;
              }

              message["b" /* default */].info("\u8BF7\u5148\u8F93\u5165 ".concat(SingleEditor_tagList[findNotAnswerIndex], " \u9009\u9879\u7684\u5185\u5BB9"));

              return _context.abrupt("return", false);

            case 7:
              if (activeAnswer.length) {
                _context.next = 10;
                break;
              }

              message["b" /* default */].info("请设置本题的正确答案，点击选项A/B...即可完成设置");

              return _context.abrupt("return", false);

            case 10:
              if (!(activeAnswer.length < 1)) {
                _context.next = 13;
                break;
              }

              message["b" /* default */].info("请选择答案");

              return _context.abrupt("return", false);

            case 13:
              choices = questionChoiceList.map(function (item, index) {
                return {
                  choice_text: item,
                  is_answer: activeAnswer.includes(index) ? index + 1 : 0
                };
              });

              if (!editData.question_id) {
                _context.next = 20;
                break;
              }

              _context.next = 17;
              return Object(service_polls["u" /* putExerciseBankQuestions */])({
                "id": editData.question_id,
                "question_title": title,
                "question_type": 1,
                "question_score": score,
                "question_choices": choices.map(function (item) {
                  return item.choice_text;
                }),
                "standard_answers": choices.filter(function (item) {
                  return item.is_answer;
                }).map(function (item) {
                  return item.is_answer;
                })
              });

            case 17:
              res = _context.sent;
              _context.next = 23;
              break;

            case 20:
              _context.next = 22;
              return Object(service_polls["a" /* addExerciseBankQuestions */])({
                "exercise_bank_id": params.topicId,
                "question_title": title,
                "question_type": 1,
                "question_score": "5.0",
                "question_choices": choices.map(function (item) {
                  return item.choice_text;
                }),
                "standard_answers": choices.filter(function (item) {
                  return item.is_answer;
                }).map(function (item) {
                  return item.is_answer;
                })
              });

            case 22:
              res = _context.sent;

            case 23:
              if (res.status === 0) {
                message["b" /* default */].success("保存成功");

                setIsEdit(false);
              }

              _context.next = 26;
              return dispatch({
                type: "polls/getExerciseBanks",
                payload: Object(objectSpread2["a" /* default */])({}, params)
              });

            case 26:
            case "end":
              return _context.stop();
          }
        }
      }, _callee);
    }));

    return function onSave() {
      return _ref2.apply(this, arguments);
    };
  }();

  var actionArr = [{
    name: "删除",
    icon: "iconfont c-light-black ml30 icon-shanchu",
    id: "del"
  }, {
    name: "上移",
    icon: "iconfont c-green ml30 icon-shangyi_Hover",
    id: "up"
  }, {
    name: "下移",
    icon: "iconfont c-green ml30 icon-xiayi_moren",
    id: "down"
  }, {
    name: "编辑",
    icon: "iconfont c-green ml30 icon-bianjishijuan3x",
    id: "edit"
  }];

  var actionClick = /*#__PURE__*/function () {
    var _ref3 = Object(asyncToGenerator["a" /* default */])( /*#__PURE__*/regenerator_default.a.mark(function _callee3(item) {
      return regenerator_default.a.wrap(function _callee3$(_context3) {
        while (1) {
          switch (_context3.prev = _context3.next) {
            case 0:
              _context3.t0 = item.id;
              _context3.next = _context3.t0 === "del" ? 3 : _context3.t0 === "up" ? 5 : _context3.t0 === "down" ? 5 : _context3.t0 === "edit" ? 9 : 11;
              break;

            case 3:
              modal["a" /* default */].confirm({
                centered: true,
                okText: '确定',
                cancelText: '取消',
                title: '确认要删除这个问题吗？',
                onOk: function onOk() {
                  return Object(asyncToGenerator["a" /* default */])( /*#__PURE__*/regenerator_default.a.mark(function _callee2() {
                    return regenerator_default.a.wrap(function _callee2$(_context2) {
                      while (1) {
                        switch (_context2.prev = _context2.next) {
                          case 0:
                            _context2.next = 2;
                            return Object(service_polls["e" /* deleteExerciseBanksQuestion */])({
                              pollsId: editData.question_id
                            });

                          case 2:
                            dispatch({
                              type: "polls/getExerciseBanks",
                              payload: Object(objectSpread2["a" /* default */])({}, params)
                            });

                          case 3:
                          case "end":
                            return _context2.stop();
                        }
                      }
                    }, _callee2);
                  }))();
                }
              });

              return _context3.abrupt("break", 11);

            case 5:
              _context3.next = 7;
              return Object(service_polls["j" /* exercisesBanksMoveUpDown */])({
                exerciseId: editData === null || editData === void 0 ? void 0 : editData.question_id,
                opr: item.id
              });

            case 7:
              dispatch({
                type: "polls/getExerciseBanks",
                payload: Object(objectSpread2["a" /* default */])({}, params)
              });
              return _context3.abrupt("break", 11);

            case 9:
              setIsEdit(true);
              return _context3.abrupt("break", 11);

            case 11:
            case "end":
              return _context3.stop();
          }
        }
      }, _callee3);
    }));

    return function actionClick(_x) {
      return _ref3.apply(this, arguments);
    };
  }();

  var showList = function showList() {
    var _editData$question_ch;

    return /*#__PURE__*/external_window_React_default.a.createElement("aside", null, /*#__PURE__*/external_window_React_default.a.createElement("div", {
      className: editormodules_default.a.questionType
    }, /*#__PURE__*/external_window_React_default.a.createElement("div", null, /*#__PURE__*/external_window_React_default.a.createElement("span", {
      className: "font16 c-blue"
    }, editData.key, "\u3001\u5355\u9009\u9898"), "\uFF08", editData.question_score, "\u5206\uFF09"), !editData.hideAction && actionArr.map(function (item, index) {
      if (item.id === "up" && editData.key === 1) return null;
      if (item.id === "down" && editData.key === editData.len) return null;
      return /*#__PURE__*/external_window_React_default.a.createElement(tooltip["a" /* default */], {
        key: index,
        placement: "bottom",
        title: item.name
      }, /*#__PURE__*/external_window_React_default.a.createElement("span", {
        onClick: function onClick() {
          return actionClick(item);
        },
        className: item.icon
      }));
    })), /*#__PURE__*/external_window_React_default.a.createElement("div", {
      className: "mt5"
    }, /*#__PURE__*/external_window_React_default.a.createElement(RenderHtml["a" /* default */], {
      value: editData.question_title
    })), /*#__PURE__*/external_window_React_default.a.createElement("div", {
      className: editormodules_default.a.questionChoices
    }, editData === null || editData === void 0 ? void 0 : (_editData$question_ch = editData.question_choices) === null || _editData$question_ch === void 0 ? void 0 : _editData$question_ch.map(function (item, index) {
      return /*#__PURE__*/external_window_React_default.a.createElement(row["a" /* default */], null, /*#__PURE__*/external_window_React_default.a.createElement(col["a" /* default */], null, /*#__PURE__*/external_window_React_default.a.createElement(es_radio["a" /* default */], {
        key: index,
        checked: editData.standard_answer.includes(index + 1),
        disabled: true
      }, SingleEditor_tagList[index], ".")), /*#__PURE__*/external_window_React_default.a.createElement(col["a" /* default */], {
        flex: "1"
      }, /*#__PURE__*/external_window_React_default.a.createElement("span", {
        className: "c-black font14"
      }, /*#__PURE__*/external_window_React_default.a.createElement(RenderHtml["a" /* default */], {
        value: item.choice_text
      }))));
    })));
  };

  var showEdit = function showEdit() {
    return /*#__PURE__*/external_window_React_default.a.createElement("aside", null, /*#__PURE__*/external_window_React_default.a.createElement("div", {
      className: editormodules_default.a.questionType
    }, /*#__PURE__*/external_window_React_default.a.createElement("div", null, /*#__PURE__*/external_window_React_default.a.createElement("span", {
      className: "font16 c-blue"
    }, "\u9009\u62E9\u9898"), "\uFF08\u5BA2\u89C2\u9898\uFF0C\u7531\u7CFB\u7EDF\u81EA\u52A8\u8BC4\u5206\uFF0C\u8BF7\u8BBE\u7F6E\u6807\u51C6\u7B54\u6848\uFF09")), /*#__PURE__*/external_window_React_default.a.createElement("p", {
      className: editormodules_default.a.titleWrap
    }, /*#__PURE__*/external_window_React_default.a.createElement("span", {
      className: editormodules_default.a.required
    }, "*"), /*#__PURE__*/external_window_React_default.a.createElement("span", {
      className: editormodules_default.a.title
    }, "\u9898\u5E72\uFF1A")), /*#__PURE__*/external_window_React_default.a.createElement(markdown_editor["a" /* default */], {
      id: "single-question-title",
      watch: true,
      height: 155,
      placeholder: "\u8BF7\u60A8\u8F93\u5165\u9898\u5E72",
      defaultValue: title,
      onChange: function onChange(value) {
        return setTitle(value);
      }
    }), /*#__PURE__*/external_window_React_default.a.createElement("p", {
      className: editormodules_default.a.titleWrap
    }, /*#__PURE__*/external_window_React_default.a.createElement("span", {
      className: editormodules_default.a.required
    }, "*"), /*#__PURE__*/external_window_React_default.a.createElement("span", {
      className: editormodules_default.a.title
    }, "\u7B54\u6848\u9009\u9879\uFF1A", /*#__PURE__*/external_window_React_default.a.createElement("span", {
      className: editormodules_default.a.colorGray
    }, "\u70B9\u51FB\u9009\u9879\u53EF\u8BBE\u7F6E\u6B63\u786E\u7B54\u6848"))), questionChoiceList.map(function (item, index) {
      return /*#__PURE__*/external_window_React_default.a.createElement("div", {
        className: editormodules_default.a.choiceWrap,
        key: index
      }, /*#__PURE__*/external_window_React_default.a.createElement(tooltip["a" /* default */], {
        title: "\u70B9\u51FB\u8BBE\u7F6E\u4E3A\u6807\u51C6\u7B54\u6848",
        placement: "left"
      }, /*#__PURE__*/external_window_React_default.a.createElement("div", {
        className: "".concat(editormodules_default.a.answer, " ").concat(activeAnswer.includes(index) ? editormodules_default.a.activeAnswer : ''),
        onClick: function onClick() {
          if (activeAnswer.includes(index)) {
            setActiveAnswer(activeAnswer.filter(function (item) {
              return item !== index;
            }));
          } else {
            setActiveAnswer([].concat(Object(toConsumableArray["a" /* default */])(activeAnswer), [index]));
          }
        }
      }, SingleEditor_tagList[index])), /*#__PURE__*/external_window_React_default.a.createElement("div", {
        className: editormodules_default.a.editorWrap
      }, activeEditor === index ? /*#__PURE__*/external_window_React_default.a.createElement(markdown_editor["a" /* default */], {
        id: "single-question-option-".concat(index),
        watch: true,
        height: 155,
        placeholder: "\u8BF7\u60A8\u8F93\u5165\u9009\u9879",
        defaultValue: item,
        onChange: function onChange(value) {
          questionChoiceList[index] = value;
          setQuestionChoiceList(questionChoiceList);
        }
      }) : /*#__PURE__*/external_window_React_default.a.createElement("div", {
        className: editormodules_default.a.htmlWrap,
        onClick: function onClick() {
          return setActiveEditor(index);
        }
      }, /*#__PURE__*/external_window_React_default.a.createElement(RenderHtml["a" /* default */], {
        value: item
      }))), index > 1 && /*#__PURE__*/external_window_React_default.a.createElement(tooltip["a" /* default */], {
        title: "\u5220\u9664"
      }, /*#__PURE__*/external_window_React_default.a.createElement("i", {
        className: "".concat(editormodules_default.a.deleteIcon, " iconfont icon-htmal5icon19"),
        onClick: function onClick() {
          return setQuestionChoiceList(questionChoiceList.filter(function (_, key) {
            return key !== index;
          }));
        }
      })), index < 7 && index === questionChoiceList.length - 1 && /*#__PURE__*/external_window_React_default.a.createElement(tooltip["a" /* default */], {
        title: "\u65B0\u589E\u53C2\u8003\u7B54\u6848"
      }, /*#__PURE__*/external_window_React_default.a.createElement("i", {
        className: "".concat(editormodules_default.a.addIcon, " iconfont icon-roundaddfill ml6"),
        onClick: function onClick() {
          return setQuestionChoiceList([].concat(Object(toConsumableArray["a" /* default */])(questionChoiceList), ['']));
        }
      })));
    }), /*#__PURE__*/external_window_React_default.a.createElement("p", {
      className: "c-orange"
    }, "\u6E29\u99A8\u63D0\u793A\uFF1A\u70B9\u51FB\u9009\u9879\u8F93\u5165\u6846\u53EF\u8BBE\u7F6E\u7B54\u6848\uFF1B\u9009\u4E2D\u7684\u9009\u9879\u5373\u4E3A\u6B63\u786E\u7B54\u6848\uFF0C\u9009\u62E9\u591A\u4E2A\u7B54\u6848\u5373\u4E3A\u591A\u9009\u9898"), /*#__PURE__*/external_window_React_default.a.createElement("p", {
      className: ""
    }, "\u5206\u503C\uFF1A", /*#__PURE__*/external_window_React_default.a.createElement(input_number["a" /* default */], {
      value: score,
      max: 10000,
      min: -1,
      onChange: function onChange(value) {
        setScore(value);
      }
    }), " \u5206"), /*#__PURE__*/external_window_React_default.a.createElement("aside", {
      className: "tr"
    }, editData.question_id && /*#__PURE__*/external_window_React_default.a.createElement(es_button["a" /* default */], {
      type: "default",
      onClick: function onClick() {
        return setIsEdit(false);
      }
    }, "\u53D6\u6D88"), /*#__PURE__*/external_window_React_default.a.createElement(es_button["a" /* default */], {
      className: "ml20",
      type: "primary",
      onClick: function onClick() {
        return onSave();
      }
    }, "\u4FDD\u5B58")));
  };

  return /*#__PURE__*/external_window_React_default.a.createElement("section", {
    className: editormodules_default.a.wrap
  }, !isEdit && showList(), isEdit && showEdit());
};

/* harmony default export */ var components_SingleEditor = (Object(umiExports["a" /* connect */])(function (_ref4) {
  var problemset = _ref4.problemset,
      loading = _ref4.loading,
      globalSetting = _ref4.globalSetting;
  return {
    problemset: problemset,
    globalSetting: globalSetting,
    loading: loading.effects
  };
}, null, null, {
  forwardRef: true
})( /*#__PURE__*/Object(external_window_React_["forwardRef"])(SingleEditor_SingleEditor)));
// CONCATENATED MODULE: ./src/pages/User/Detail/Topics/Exercise/Detail/components/JudgmentEditor/index.tsx






















var JudgmentEditor_tagList = ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'];

var JudgmentEditor_JudgmentEditor = function JudgmentEditor(_ref, ref) {
  var problemset = _ref.problemset,
      globalSetting = _ref.globalSetting,
      loading = _ref.loading,
      dispatch = _ref.dispatch,
      _ref$onRef = _ref.onRef,
      onRef = _ref$onRef === void 0 ? function () {} : _ref$onRef,
      editData = _ref.editData,
      props = Object(objectWithoutProperties["a" /* default */])(_ref, ["problemset", "globalSetting", "loading", "dispatch", "onRef", "editData"]);

  var _useState = Object(external_window_React_["useState"])(),
      _useState2 = Object(slicedToArray["a" /* default */])(_useState, 2),
      activeAnswer = _useState2[0],
      setActiveAnswer = _useState2[1];

  var _useState3 = Object(external_window_React_["useState"])(''),
      _useState4 = Object(slicedToArray["a" /* default */])(_useState3, 2),
      title = _useState4[0],
      setTitle = _useState4[1];

  var _useState5 = Object(external_window_React_["useState"])(false),
      _useState6 = Object(slicedToArray["a" /* default */])(_useState5, 2),
      isEdit = _useState6[0],
      setIsEdit = _useState6[1];

  var _useState7 = Object(external_window_React_["useState"])(5),
      _useState8 = Object(slicedToArray["a" /* default */])(_useState7, 2),
      score = _useState8[0],
      setScore = _useState8[1];

  var params = Object(react_router["i" /* useParams */])();
  Object(external_window_React_["useEffect"])(function () {
    if (!(editData !== null && editData !== void 0 && editData.question_choices)) {
      setIsEdit(true);
      return;
    }

    setTitle(editData === null || editData === void 0 ? void 0 : editData.question_title);
    setScore(editData === null || editData === void 0 ? void 0 : editData.question_score); // const answer = editData?.question_choices.find(item => item.is_answer);

    setActiveAnswer(editData.standard_answer[0] + '');
  }, [editData]);
  Object(external_window_React_["useImperativeHandle"])(ref, function () {
    return {
      onSave: onSave,
      isEdit: isEdit
    };
  });

  var onSave = /*#__PURE__*/function () {
    var _ref2 = Object(asyncToGenerator["a" /* default */])( /*#__PURE__*/regenerator_default.a.mark(function _callee() {
      var choices, res;
      return regenerator_default.a.wrap(function _callee$(_context) {
        while (1) {
          switch (_context.prev = _context.next) {
            case 0:
              if (title) {
                _context.next = 3;
                break;
              }

              message["b" /* default */].info("请您输入题干");

              return _context.abrupt("return", false);

            case 3:
              if (activeAnswer) {
                _context.next = 6;
                break;
              }

              message["b" /* default */].info("请先点击选择本选择题的正确选项");

              return _context.abrupt("return", false);

            case 6:
              choices = [{
                choice_text: "正确",
                is_answer: activeAnswer === "1" ? 1 : 0
              }, {
                choice_text: "错误",
                is_answer: activeAnswer === "2" ? 2 : 0
              }];

              if (!editData.question_id) {
                _context.next = 13;
                break;
              }

              _context.next = 10;
              return Object(service_polls["u" /* putExerciseBankQuestions */])({
                "id": editData.question_id,
                "question_title": title,
                "question_type": 2,
                "question_score": score,
                "question_choices": choices.map(function (item) {
                  return item.choice_text;
                }),
                "standard_answers": choices.filter(function (item) {
                  return item.is_answer;
                }).map(function (item) {
                  return item.is_answer;
                })
              });

            case 10:
              res = _context.sent;
              _context.next = 16;
              break;

            case 13:
              _context.next = 15;
              return Object(service_polls["a" /* addExerciseBankQuestions */])({
                "exercise_bank_id": params.topicId,
                "question_title": title,
                "question_type": 2,
                "question_score": score,
                "question_choices": choices.map(function (item) {
                  return item.choice_text;
                }),
                "standard_answers": choices.filter(function (item) {
                  return item.is_answer;
                }).map(function (item) {
                  return item.is_answer;
                })
              });

            case 15:
              res = _context.sent;

            case 16:
              if (res.status === 0) {
                message["b" /* default */].success("保存成功");

                setIsEdit(false);
              }

              dispatch({
                type: "polls/getExerciseBanks",
                payload: Object(objectSpread2["a" /* default */])({}, params)
              });
              return _context.abrupt("return", {
                name: title,
                choices: choices
              });

            case 19:
            case "end":
              return _context.stop();
          }
        }
      }, _callee);
    }));

    return function onSave() {
      return _ref2.apply(this, arguments);
    };
  }();

  var actionArr = [{
    name: "删除",
    icon: "iconfont c-light-black ml30 icon-shanchu",
    id: "del"
  }, {
    name: "上移",
    icon: "iconfont c-green ml30 icon-shangyi_Hover",
    id: "up"
  }, {
    name: "下移",
    icon: "iconfont c-green ml30 icon-xiayi_moren",
    id: "down"
  }, {
    name: "编辑",
    icon: "iconfont c-green ml30 icon-bianjishijuan3x",
    id: "edit"
  }];

  var actionClick = /*#__PURE__*/function () {
    var _ref3 = Object(asyncToGenerator["a" /* default */])( /*#__PURE__*/regenerator_default.a.mark(function _callee3(item) {
      return regenerator_default.a.wrap(function _callee3$(_context3) {
        while (1) {
          switch (_context3.prev = _context3.next) {
            case 0:
              _context3.t0 = item.id;
              _context3.next = _context3.t0 === "del" ? 3 : _context3.t0 === "up" ? 5 : _context3.t0 === "down" ? 5 : _context3.t0 === "edit" ? 9 : 11;
              break;

            case 3:
              modal["a" /* default */].confirm({
                centered: true,
                okText: '确定',
                cancelText: '取消',
                title: '确认要删除这个问题吗？',
                onOk: function onOk() {
                  return Object(asyncToGenerator["a" /* default */])( /*#__PURE__*/regenerator_default.a.mark(function _callee2() {
                    return regenerator_default.a.wrap(function _callee2$(_context2) {
                      while (1) {
                        switch (_context2.prev = _context2.next) {
                          case 0:
                            _context2.next = 2;
                            return Object(service_polls["e" /* deleteExerciseBanksQuestion */])({
                              pollsId: editData.question_id
                            });

                          case 2:
                            dispatch({
                              type: "polls/getExerciseBanks",
                              payload: Object(objectSpread2["a" /* default */])({}, params)
                            });

                          case 3:
                          case "end":
                            return _context2.stop();
                        }
                      }
                    }, _callee2);
                  }))();
                }
              });

              return _context3.abrupt("break", 11);

            case 5:
              _context3.next = 7;
              return Object(service_polls["j" /* exercisesBanksMoveUpDown */])({
                exerciseId: editData === null || editData === void 0 ? void 0 : editData.question_id,
                opr: item.id
              });

            case 7:
              dispatch({
                type: "polls/getExerciseBanks",
                payload: Object(objectSpread2["a" /* default */])({}, params)
              });
              return _context3.abrupt("break", 11);

            case 9:
              setIsEdit(true);
              return _context3.abrupt("break", 11);

            case 11:
            case "end":
              return _context3.stop();
          }
        }
      }, _callee3);
    }));

    return function actionClick(_x) {
      return _ref3.apply(this, arguments);
    };
  }();

  var showList = function showList() {
    var _editData$question_ch;

    return /*#__PURE__*/external_window_React_default.a.createElement("aside", null, /*#__PURE__*/external_window_React_default.a.createElement("div", {
      className: editormodules_default.a.questionType
    }, /*#__PURE__*/external_window_React_default.a.createElement("div", null, /*#__PURE__*/external_window_React_default.a.createElement("span", {
      className: "font16 c-blue"
    }, editData.key, "\u3001\u5224\u65AD\u9898"), "\uFF08", editData.question_score, "\u5206\uFF09"), !editData.hideAction && actionArr.map(function (item, index) {
      if (item.id === "up" && editData.key === 1) return null;
      if (item.id === "down" && editData.key === editData.len) return null;
      return /*#__PURE__*/external_window_React_default.a.createElement(tooltip["a" /* default */], {
        key: index,
        placement: "bottom",
        title: item.name
      }, /*#__PURE__*/external_window_React_default.a.createElement("span", {
        onClick: function onClick() {
          return actionClick(item);
        },
        className: item.icon
      }));
    })), /*#__PURE__*/external_window_React_default.a.createElement("div", {
      className: "mt5"
    }, editData.question_title), /*#__PURE__*/external_window_React_default.a.createElement("div", {
      className: editormodules_default.a.questionChoices
    }, editData === null || editData === void 0 ? void 0 : (_editData$question_ch = editData.question_choices) === null || _editData$question_ch === void 0 ? void 0 : _editData$question_ch.map(function (item, index) {
      return /*#__PURE__*/external_window_React_default.a.createElement(es_radio["a" /* default */], {
        key: index,
        checked: editData.standard_answer.includes(index + 1),
        disabled: true
      }, JudgmentEditor_tagList[index], ". ", /*#__PURE__*/external_window_React_default.a.createElement("span", {
        className: "c-black font14"
      }, item.choice_text));
    })));
  };

  var showEdit = function showEdit() {
    return /*#__PURE__*/external_window_React_default.a.createElement("aside", null, /*#__PURE__*/external_window_React_default.a.createElement("div", null, /*#__PURE__*/external_window_React_default.a.createElement("span", {
      className: "font16 c-blue"
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      className: editormodules_default.a.titleWrap
    }, /*#__PURE__*/external_window_React_default.a.createElement("span", {
      className: editormodules_default.a.required
    }, "*"), /*#__PURE__*/external_window_React_default.a.createElement("span", {
      className: editormodules_default.a.title
    }, "\u9898\u5E72\uFF1A")), /*#__PURE__*/external_window_React_default.a.createElement(markdown_editor["a" /* default */], {
      id: "single-question-title",
      watch: true,
      height: 155,
      placeholder: "\u8BF7\u60A8\u8F93\u5165\u9898\u5E72",
      defaultValue: title,
      onChange: function onChange(value) {
        return setTitle(value);
      }
    }), /*#__PURE__*/external_window_React_default.a.createElement("p", {
      className: editormodules_default.a.titleWrap
    }, /*#__PURE__*/external_window_React_default.a.createElement("span", {
      className: editormodules_default.a.required
    }, "*"), /*#__PURE__*/external_window_React_default.a.createElement("span", {
      className: editormodules_default.a.title
    }, "\u7B54\u6848\u9009\u9879\uFF1A", /*#__PURE__*/external_window_React_default.a.createElement("span", {
      className: editormodules_default.a.colorGray
    }, "\u70B9\u51FB\u9009\u9879\u53EF\u8BBE\u7F6E\u6B63\u786E\u7B54\u6848"))), /*#__PURE__*/external_window_React_default.a.createElement(es_radio["a" /* default */].Group, {
      buttonStyle: "solid",
      value: activeAnswer,
      onChange: function onChange(e) {
        return setActiveAnswer(e.target.value);
      }
    }, /*#__PURE__*/external_window_React_default.a.createElement(es_radio["a" /* default */].Button, {
      value: "1",
      className: "".concat(editormodules_default.a.radio, " mr40")
    }, "\u6B63\u786E"), /*#__PURE__*/external_window_React_default.a.createElement(es_radio["a" /* default */].Button, {
      value: "2",
      className: editormodules_default.a.radio
    }, "\u9519\u8BEF")), /*#__PURE__*/external_window_React_default.a.createElement("p", {
      className: "c-orange"
    }, "\u6E29\u99A8\u63D0\u793A\uFF1A\u70B9\u51FB\u9009\u9879\uFF0C\u53EF\u4EE5\u76F4\u63A5\u8BBE\u7F6E\u6807\u51C6\u7B54\u6848"), /*#__PURE__*/external_window_React_default.a.createElement("p", {
      className: ""
    }, "\u5206\u503C\uFF1A", /*#__PURE__*/external_window_React_default.a.createElement(input_number["a" /* default */], {
      value: score,
      max: 10000,
      min: -1,
      onChange: function onChange(value) {
        setScore(value);
      }
    }), " \u5206"), /*#__PURE__*/external_window_React_default.a.createElement("aside", {
      className: "tr"
    }, editData.question_id && /*#__PURE__*/external_window_React_default.a.createElement(es_button["a" /* default */], {
      type: "default",
      onClick: function onClick() {
        return setIsEdit(false);
      }
    }, "\u53D6\u6D88"), /*#__PURE__*/external_window_React_default.a.createElement(es_button["a" /* default */], {
      className: "ml20",
      type: "primary",
      onClick: function onClick() {
        return onSave();
      }
    }, "\u4FDD\u5B58")));
  };

  return /*#__PURE__*/external_window_React_default.a.createElement("section", {
    className: editormodules_default.a.wrap
  }, !isEdit && showList(), isEdit && showEdit());
};

/* harmony default export */ var components_JudgmentEditor = (Object(umiExports["a" /* connect */])(function (_ref4) {
  var problemset = _ref4.problemset,
      loading = _ref4.loading,
      globalSetting = _ref4.globalSetting;
  return {
    problemset: problemset,
    globalSetting: globalSetting,
    loading: loading.effects
  };
}, null, null, {
  forwardRef: true
})( /*#__PURE__*/Object(external_window_React_["forwardRef"])(JudgmentEditor_JudgmentEditor)));
// EXTERNAL MODULE: ./src/components/Editor/NullMDEditor.js
var NullMDEditor = __webpack_require__("kqOp");

// EXTERNAL MODULE: ./src/components/Editor/NullChildEditor/index.js
var NullChildEditor = __webpack_require__("7qnI");

// EXTERNAL MODULE: ./src/utils/util.tsx + 1 modules
var util = __webpack_require__("1vsH");

// CONCATENATED MODULE: ./src/pages/User/Detail/Topics/Exercise/Detail/components/CompletionEditor/index.tsx































var CompletionEditor_tagList = ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'];

var CompletionEditor_CompletionEditor = function CompletionEditor(_ref, ref) {
  var problemset = _ref.problemset,
      globalSetting = _ref.globalSetting,
      loading = _ref.loading,
      dispatch = _ref.dispatch,
      editData = _ref.editData,
      props = Object(objectWithoutProperties["a" /* default */])(_ref, ["problemset", "globalSetting", "loading", "dispatch", "editData"]);

  var _useState = Object(external_window_React_["useState"])(''),
      _useState2 = Object(slicedToArray["a" /* default */])(_useState, 2),
      title = _useState2[0],
      setTitle = _useState2[1];

  var _useState3 = Object(external_window_React_["useState"])(''),
      _useState4 = Object(slicedToArray["a" /* default */])(_useState3, 2),
      analysis = _useState4[0],
      setAnalysis = _useState4[1];

  var _useState5 = Object(external_window_React_["useState"])([]),
      _useState6 = Object(slicedToArray["a" /* default */])(_useState5, 2),
      answerList = _useState6[0],
      setAnswerList = _useState6[1];

  var _useState7 = Object(external_window_React_["useState"])(''),
      _useState8 = Object(slicedToArray["a" /* default */])(_useState7, 2),
      activeOptionErrorIndex = _useState8[0],
      setActiveOptionErrorIndex = _useState8[1];

  var _useState9 = Object(external_window_React_["useState"])(),
      _useState10 = Object(slicedToArray["a" /* default */])(_useState9, 2),
      checked = _useState10[0],
      setChecked = _useState10[1];

  var _useState11 = Object(external_window_React_["useState"])(false),
      _useState12 = Object(slicedToArray["a" /* default */])(_useState11, 2),
      firstSetAnswerFlag = _useState12[0],
      setFirstSetAnswerFlag = _useState12[1];

  var _useState13 = Object(external_window_React_["useState"])(5),
      _useState14 = Object(slicedToArray["a" /* default */])(_useState13, 2),
      score = _useState14[0],
      setScore = _useState14[1];

  var _useState15 = Object(external_window_React_["useState"])(false),
      _useState16 = Object(slicedToArray["a" /* default */])(_useState15, 2),
      isEdit = _useState16[0],
      setIsEdit = _useState16[1];

  var params = Object(react_router["i" /* useParams */])();
  Object(external_window_React_["useEffect"])(function () {
    if (!(editData !== null && editData !== void 0 && editData.question_title)) {
      setIsEdit(true);
      return;
    }

    setTitle(editData === null || editData === void 0 ? void 0 : editData.question_title);
    setChecked(editData === null || editData === void 0 ? void 0 : editData.is_ordered);
    setScore(editData === null || editData === void 0 ? void 0 : editData.question_score);
    var answer = editData === null || editData === void 0 ? void 0 : editData.standard_answer.map(function (item) {
      return item.answer_text;
    });
    setAnswerList(answer);
  }, [problemset.editData]);
  Object(external_window_React_["useEffect"])(function () {
    setFirstSetAnswerFlag(false);
  }, [isEdit]);
  Object(external_window_React_["useImperativeHandle"])(ref, function () {
    return {
      onSave: onSave,
      isEdit: isEdit
    };
  });

  var onSave = /*#__PURE__*/function () {
    var _ref2 = Object(asyncToGenerator["a" /* default */])( /*#__PURE__*/regenerator_default.a.mark(function _callee() {
      var answerArray, isEmpty, res;
      return regenerator_default.a.wrap(function _callee$(_context) {
        while (1) {
          switch (_context.prev = _context.next) {
            case 0:
              answerArray = [];
              isEmpty = false;
              answerList.forEach(function (answers, index) {
                answerArray.push({
                  choice_id: index + 1,
                  answer_text: []
                });
                answers.forEach(function (item, itemIndex) {
                  answerArray[index].answer_text.push(item);

                  if (!item || !Object(util["bb" /* validateLength */])(item, 10000)) {
                    setActiveOptionErrorIndex("".concat(index, "-").concat(itemIndex));

                    message["b" /* default */].info(!item ? "\u7B54\u6848\uFF1A\u4E0D\u80FD\u4E3A\u7A7A" : "答案不能超过10000字符");

                    isEmpty = true;
                  }
                });
              });

              if (!isEmpty) {
                _context.next = 5;
                break;
              }

              return _context.abrupt("return", false);

            case 5:
              if (!editData.question_id) {
                _context.next = 11;
                break;
              }

              _context.next = 8;
              return Object(service_polls["u" /* putExerciseBankQuestions */])({
                "id": editData.question_id,
                "question_title": title,
                "question_type": 3,
                "question_score": score,
                "is_ordered": checked,
                "standard_answers": answerArray
              });

            case 8:
              res = _context.sent;
              _context.next = 14;
              break;

            case 11:
              _context.next = 13;
              return Object(service_polls["a" /* addExerciseBankQuestions */])({
                "exercise_bank_id": params.topicId,
                "question_title": title,
                "question_type": 3,
                "question_score": score,
                "is_ordered": checked,
                "standard_answers": answerArray
              });

            case 13:
              res = _context.sent;

            case 14:
              if (res.status === 0) {
                message["b" /* default */].success("保存成功");

                setIsEdit(false);
              }

              dispatch({
                type: "polls/getExerciseBanks",
                payload: Object(objectSpread2["a" /* default */])({}, params)
              });
              return _context.abrupt("return", {
                name: title,
                analysis: analysis,
                standard_answers: answerArray,
                is_ordered: checked
              });

            case 17:
            case "end":
              return _context.stop();
          }
        }
      }, _callee);
    }));

    return function onSave() {
      return _ref2.apply(this, arguments);
    };
  }();

  var handlePlaceholderChange = function handlePlaceholderChange(placeholderCountBefore, placeholderCountInRange, totalPlaceholderCount) {
    var newStandardAnswers = answerList.slice();

    if (placeholderCountInRange) {
      newStandardAnswers.splice(placeholderCountBefore, placeholderCountInRange);
    }

    if (totalPlaceholderCount && firstSetAnswerFlag) {
      for (var i = 0; i < totalPlaceholderCount; i++) {
        newStandardAnswers.splice(placeholderCountBefore + i, 0, [""]);
      }
    }

    setFirstSetAnswerFlag(true);
    setAnswerList(newStandardAnswers);
  };

  var handleAnswerChange = function handleAnswerChange(index, itemIndex, val) {
    setActiveOptionErrorIndex('');
    var newStandardAnswers = answerList.slice();
    newStandardAnswers[index][itemIndex] = val;
    setAnswerList(newStandardAnswers);
  };

  var handleAddChildAnswer = function handleAddChildAnswer(index) {
    var newStandardAnswers = answerList.slice();
    newStandardAnswers[index] = [].concat(Object(toConsumableArray["a" /* default */])(newStandardAnswers[index]), ['']);
    setAnswerList(newStandardAnswers);
  };

  var handleDeleteChildAnswer = function handleDeleteChildAnswer(index, childIndex) {
    var newStandardAnswers = answerList.slice();

    if (!newStandardAnswers[index][childIndex]) {
      newStandardAnswers[index] = newStandardAnswers[index].filter(function (_, key) {
        return key !== childIndex;
      });
      setAnswerList(newStandardAnswers);
      return;
    }

    modal["a" /* default */].confirm({
      centered: true,
      okText: '确定',
      cancelText: '取消',
      title: '提示',
      content: '确认要删除这个参考答案吗？',
      className: editormodules_default.a.modal,
      onOk: function onOk() {
        newStandardAnswers[index] = newStandardAnswers[index].filter(function (_, key) {
          return key !== childIndex;
        });
        setAnswerList(newStandardAnswers);
      }
    });
  };

  var handleDeleteChildAnswermain = function handleDeleteChildAnswermain(index) {
    modal["a" /* default */].confirm({
      centered: true,
      okText: '确定',
      cancelText: '取消',
      title: '提示',
      content: '确认要删除这个参考答案吗？',
      className: editormodules_default.a.modal,
      onOk: function onOk() {
        var newStandardAnswers = answerList.slice();
        newStandardAnswers = answerList.filter(function (_, key) {
          return index !== key;
        });
        setAnswerList(newStandardAnswers);
      }
    });
  };

  var showEdit = function showEdit() {
    return /*#__PURE__*/external_window_React_default.a.createElement("aside", null, /*#__PURE__*/external_window_React_default.a.createElement("div", {
      className: editormodules_default.a.questionType
    }, /*#__PURE__*/external_window_React_default.a.createElement("div", null, /*#__PURE__*/external_window_React_default.a.createElement("span", {
      className: "font16 c-blue"
    }, "\u586B\u7A7A\u9898"), "\uFF08\u5BA2\u89C2\u9898\uFF0C\u7531\u7CFB\u7EDF\u81EA\u52A8\u8BC4\u5206\uFF0C\u5141\u8BB8\u624B\u52A8\u8C03\u5206\uFF0C\u8BF7\u8BBE\u7F6E\u6807\u51C6\u7B54\u6848 \uFF1B\u652F\u6301\u6700\u591A5\u4E2A\u7A7A\uFF0C\u6BCF\u7A7A\u5F97\u5206\u6309\u7167\u672C\u9898\u7684\u603B\u5206\u5E73\u5747\u8BA1\u7B97\uFF09")), /*#__PURE__*/external_window_React_default.a.createElement("div", null, /*#__PURE__*/external_window_React_default.a.createElement(NullMDEditor["a" /* default */], {
      id: "completion-question-tittle",
      placeholder: "\u8BF7\u60A8\u8F93\u5165\u9898\u76EE",
      height: 155,
      defaultValue: title,
      onChange: function onChange(value) {
        return setTitle(value);
      },
      showNullButton: true,
      onPlaceholderChange: handlePlaceholderChange
    })), /*#__PURE__*/external_window_React_default.a.createElement("div", {
      className: "mt20"
    }, answerList.map(function (answers, index) {
      return /*#__PURE__*/external_window_React_default.a.createElement(NullChildEditor["a" /* default */], {
        key: index,
        answers: answers,
        index: index,
        is_md: true,
        activeOptionErrorIndex: activeOptionErrorIndex,
        onAnswerChange: handleAnswerChange,
        addChildAnswer: handleAddChildAnswer,
        deleteChildAnswer: handleDeleteChildAnswer,
        deleteChildAnswermain: handleDeleteChildAnswermain
      });
    })), /*#__PURE__*/external_window_React_default.a.createElement("div", {
      className: "mt20"
    }, answerList.length > 1 && /*#__PURE__*/external_window_React_default.a.createElement("span", null, /*#__PURE__*/external_window_React_default.a.createElement(es_checkbox["a" /* default */], {
      checked: checked,
      onChange: function onChange(e) {
        return setChecked(e.target.checked);
      },
      className: "".concat(editormodules_default.a.color333, " font14")
    }, "\u591A\u4E2A\u586B\u7A7A\u7684\u7B54\u6848\u6709\u987A\u5E8F\u8981\u6C42"), /*#__PURE__*/external_window_React_default.a.createElement("span", {
      className: "".concat(editormodules_default.a.color999, " font12")
    }, "\uFF08\u9009\u4E2D\uFF0C\u6BCF\u4E2A\u586B\u7A7A\u7684\u7B54\u6848\u987A\u5E8F\u5FC5\u987B\u4E0E\u53C2\u8003\u7B54\u6848\u4E00\u81F4\uFF09"))), /*#__PURE__*/external_window_React_default.a.createElement("p", {
      className: ""
    }, "\u5206\u503C\uFF1A", /*#__PURE__*/external_window_React_default.a.createElement(input_number["a" /* default */], {
      value: score,
      max: 10000,
      min: -1,
      onChange: function onChange(value) {
        setScore(value);
      }
    }), " \u5206"), /*#__PURE__*/external_window_React_default.a.createElement("aside", {
      className: "tr"
    }, editData.question_id && /*#__PURE__*/external_window_React_default.a.createElement(es_button["a" /* default */], {
      type: "default",
      onClick: function onClick() {
        return setIsEdit(false);
      }
    }, "\u53D6\u6D88"), /*#__PURE__*/external_window_React_default.a.createElement(es_button["a" /* default */], {
      className: "ml20",
      type: "primary",
      onClick: function onClick() {
        return onSave();
      }
    }, "\u4FDD\u5B58")));
  };

  var actionArr = [{
    name: "删除",
    icon: "iconfont c-light-black ml30 icon-shanchu",
    id: "del"
  }, {
    name: "上移",
    icon: "iconfont c-green ml30 icon-shangyi_Hover",
    id: "up"
  }, {
    name: "下移",
    icon: "iconfont c-green ml30 icon-xiayi_moren",
    id: "down"
  }, {
    name: "编辑",
    icon: "iconfont c-green ml30 icon-bianjishijuan3x",
    id: "edit"
  }];

  var actionClick = /*#__PURE__*/function () {
    var _ref3 = Object(asyncToGenerator["a" /* default */])( /*#__PURE__*/regenerator_default.a.mark(function _callee3(item) {
      return regenerator_default.a.wrap(function _callee3$(_context3) {
        while (1) {
          switch (_context3.prev = _context3.next) {
            case 0:
              _context3.t0 = item.id;
              _context3.next = _context3.t0 === "del" ? 3 : _context3.t0 === "up" ? 5 : _context3.t0 === "down" ? 5 : _context3.t0 === "edit" ? 9 : 11;
              break;

            case 3:
              modal["a" /* default */].confirm({
                centered: true,
                okText: '确定',
                cancelText: '取消',
                title: '确认要删除这个问题吗？',
                onOk: function onOk() {
                  return Object(asyncToGenerator["a" /* default */])( /*#__PURE__*/regenerator_default.a.mark(function _callee2() {
                    return regenerator_default.a.wrap(function _callee2$(_context2) {
                      while (1) {
                        switch (_context2.prev = _context2.next) {
                          case 0:
                            _context2.next = 2;
                            return Object(service_polls["e" /* deleteExerciseBanksQuestion */])({
                              pollsId: editData.question_id
                            });

                          case 2:
                            dispatch({
                              type: "polls/getExerciseBanks",
                              payload: Object(objectSpread2["a" /* default */])({}, params)
                            });

                          case 3:
                          case "end":
                            return _context2.stop();
                        }
                      }
                    }, _callee2);
                  }))();
                }
              });

              return _context3.abrupt("break", 11);

            case 5:
              _context3.next = 7;
              return Object(service_polls["j" /* exercisesBanksMoveUpDown */])({
                exerciseId: editData === null || editData === void 0 ? void 0 : editData.question_id,
                opr: item.id
              });

            case 7:
              dispatch({
                type: "polls/getExerciseBanks",
                payload: Object(objectSpread2["a" /* default */])({}, params)
              });
              return _context3.abrupt("break", 11);

            case 9:
              setIsEdit(true);
              return _context3.abrupt("break", 11);

            case 11:
            case "end":
              return _context3.stop();
          }
        }
      }, _callee3);
    }));

    return function actionClick(_x) {
      return _ref3.apply(this, arguments);
    };
  }();

  var showList = function showList() {
    var _editData$standard_an;

    return /*#__PURE__*/external_window_React_default.a.createElement("aside", null, /*#__PURE__*/external_window_React_default.a.createElement("div", {
      className: editormodules_default.a.questionType
    }, /*#__PURE__*/external_window_React_default.a.createElement("div", null, /*#__PURE__*/external_window_React_default.a.createElement("span", {
      className: "font16 c-blue"
    }, editData.key, "\u3001\u586B\u7A7A\u9898"), "\uFF08", editData.question_score, "\u5206\uFF09"), !editData.hideAction && actionArr.map(function (item, index) {
      if (item.id === "up" && editData.key === 1) return null;
      if (item.id === "down" && editData.key === editData.len) return null;
      return /*#__PURE__*/external_window_React_default.a.createElement(tooltip["a" /* default */], {
        key: index,
        placement: "bottom",
        title: item.name
      }, /*#__PURE__*/external_window_React_default.a.createElement("span", {
        onClick: function onClick() {
          return actionClick(item);
        },
        className: item.icon
      }));
    })), /*#__PURE__*/external_window_React_default.a.createElement("div", {
      className: "mt5"
    }, editData.question_title), /*#__PURE__*/external_window_React_default.a.createElement("div", {
      className: editormodules_default.a.questionChoices
    }, editData === null || editData === void 0 ? void 0 : (_editData$standard_an = editData.standard_answer) === null || _editData$standard_an === void 0 ? void 0 : _editData$standard_an.map(function (item, index) {
      return /*#__PURE__*/external_window_React_default.a.createElement(row["a" /* default */], null, /*#__PURE__*/external_window_React_default.a.createElement(col["a" /* default */], null, "\u7B54\u6848\uFF08\u586B\u7A7A", item.choice_id, "\uFF09\uFF1A"), /*#__PURE__*/external_window_React_default.a.createElement(col["a" /* default */], {
        flex: "1"
      }, /*#__PURE__*/external_window_React_default.a.createElement(input["a" /* default */], {
        key: index,
        checked: editData.standard_answer.includes(index),
        disabled: true,
        value: item.answer_text
      })));
    })));
  };

  return /*#__PURE__*/external_window_React_default.a.createElement("section", {
    className: editormodules_default.a.wrap
  }, !isEdit && showList(), isEdit && showEdit());
};

/* harmony default export */ var components_CompletionEditor = (Object(umiExports["a" /* connect */])(function (_ref4) {
  var problemset = _ref4.problemset,
      loading = _ref4.loading,
      globalSetting = _ref4.globalSetting;
  return {
    problemset: problemset,
    globalSetting: globalSetting,
    loading: loading.effects
  };
}, null, null, {
  forwardRef: true
})( /*#__PURE__*/Object(external_window_React_["forwardRef"])(CompletionEditor_CompletionEditor)));
// CONCATENATED MODULE: ./src/pages/User/Detail/Topics/Exercise/Detail/components/SubjectiveEditor/index.tsx





















var SubjectiveEditor_tagList = ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'];

var SubjectiveEditor_SubjectiveEditor = function SubjectiveEditor(_ref, ref) {
  var problemset = _ref.problemset,
      globalSetting = _ref.globalSetting,
      loading = _ref.loading,
      dispatch = _ref.dispatch,
      _ref$onRef = _ref.onRef,
      onRef = _ref$onRef === void 0 ? function () {} : _ref$onRef,
      editData = _ref.editData,
      props = Object(objectWithoutProperties["a" /* default */])(_ref, ["problemset", "globalSetting", "loading", "dispatch", "onRef", "editData"]);

  var _useState = Object(external_window_React_["useState"])(''),
      _useState2 = Object(slicedToArray["a" /* default */])(_useState, 2),
      title = _useState2[0],
      setTitle = _useState2[1];

  var _useState3 = Object(external_window_React_["useState"])(''),
      _useState4 = Object(slicedToArray["a" /* default */])(_useState3, 2),
      analysis = _useState4[0],
      setAnalysis = _useState4[1];

  var _useState5 = Object(external_window_React_["useState"])(''),
      _useState6 = Object(slicedToArray["a" /* default */])(_useState5, 2),
      answer = _useState6[0],
      setAnswer = _useState6[1];

  var _useState7 = Object(external_window_React_["useState"])(5),
      _useState8 = Object(slicedToArray["a" /* default */])(_useState7, 2),
      score = _useState8[0],
      setScore = _useState8[1];

  var _useState9 = Object(external_window_React_["useState"])(false),
      _useState10 = Object(slicedToArray["a" /* default */])(_useState9, 2),
      isEdit = _useState10[0],
      setIsEdit = _useState10[1];

  var params = Object(react_router["i" /* useParams */])();
  Object(external_window_React_["useEffect"])(function () {
    var _editData$standard_an;

    if (!(editData !== null && editData !== void 0 && editData.question_title)) {
      setIsEdit(true);
      return;
    }

    setTitle(editData === null || editData === void 0 ? void 0 : editData.question_title);
    setAnswer(editData === null || editData === void 0 ? void 0 : (_editData$standard_an = editData.standard_answer) === null || _editData$standard_an === void 0 ? void 0 : _editData$standard_an[0]);
    setScore(editData === null || editData === void 0 ? void 0 : editData.question_score);
  }, [problemset.editData]);
  Object(external_window_React_["useImperativeHandle"])(ref, function () {
    return {
      onSave: onSave,
      isEdit: isEdit
    };
  });

  var onSave = /*#__PURE__*/function () {
    var _ref2 = Object(asyncToGenerator["a" /* default */])( /*#__PURE__*/regenerator_default.a.mark(function _callee() {
      var res;
      return regenerator_default.a.wrap(function _callee$(_context) {
        while (1) {
          switch (_context.prev = _context.next) {
            case 0:
              if (title) {
                _context.next = 3;
                break;
              }

              message["b" /* default */].info("请您输入题干");

              return _context.abrupt("return", false);

            case 3:
              if (!editData.question_id) {
                _context.next = 9;
                break;
              }

              _context.next = 6;
              return Object(service_polls["u" /* putExerciseBankQuestions */])({
                "id": editData.question_id,
                "question_title": title,
                "question_type": 4,
                "question_score": score,
                "standard_answers": [answer]
              });

            case 6:
              res = _context.sent;
              _context.next = 12;
              break;

            case 9:
              _context.next = 11;
              return Object(service_polls["a" /* addExerciseBankQuestions */])({
                "exercise_bank_id": params.topicId,
                "question_title": title,
                "question_type": 4,
                "question_score": score,
                "standard_answers": [answer]
              });

            case 11:
              res = _context.sent;

            case 12:
              if (res.status === 0) {
                message["b" /* default */].success("保存成功");

                setIsEdit(false);
                dispatch({
                  type: "polls/getExerciseBanks",
                  payload: Object(objectSpread2["a" /* default */])({}, params)
                });
              }

              return _context.abrupt("return", {
                name: title,
                answer_texts: [answer],
                analysis: analysis
              });

            case 14:
            case "end":
              return _context.stop();
          }
        }
      }, _callee);
    }));

    return function onSave() {
      return _ref2.apply(this, arguments);
    };
  }();

  var showEdit = function showEdit() {
    return /*#__PURE__*/external_window_React_default.a.createElement("aside", null, /*#__PURE__*/external_window_React_default.a.createElement("div", {
      className: editormodules_default.a.questionType
    }, /*#__PURE__*/external_window_React_default.a.createElement("div", null, /*#__PURE__*/external_window_React_default.a.createElement("span", {
      className: "font16 c-blue"
    }, "\u7B80\u7B54\u9898"), "\uFF08\u4E3B\u89C2\u9898\uFF0C\u672A\u4F5C\u7B54\u7684\u60C5\u51B5\u4E0B\u81EA\u52A8\u8BC4\u4E3A\u96F6\u5206\uFF09")), /*#__PURE__*/external_window_React_default.a.createElement(markdown_editor["a" /* default */], {
      id: "single-question-title",
      watch: true,
      height: 155,
      placeholder: "\u8BF7\u60A8\u8F93\u5165\u9898\u5E72",
      defaultValue: title,
      onChange: function onChange(value) {
        return setTitle(value);
      }
    }), /*#__PURE__*/external_window_React_default.a.createElement("p", {
      className: editormodules_default.a.titleWrap
    }, /*#__PURE__*/external_window_React_default.a.createElement("span", {
      className: editormodules_default.a.title
    }, "\u53C2\u8003\u7B54\u6848\uFF1A")), /*#__PURE__*/external_window_React_default.a.createElement(markdown_editor["a" /* default */], {
      id: "single-question-reference-answer",
      watch: true,
      height: 155,
      placeholder: "\u8BF7\u60A8\u8F93\u5165\u53C2\u8003\u7B54\u6848",
      defaultValue: answer,
      onChange: function onChange(value) {
        return setAnswer(value);
      }
    }), /*#__PURE__*/external_window_React_default.a.createElement("p", {
      className: ""
    }, "\u5206\u503C\uFF1A", /*#__PURE__*/external_window_React_default.a.createElement(input_number["a" /* default */], {
      value: score,
      max: 10000,
      min: -1,
      onChange: function onChange(value) {
        setScore(value);
      }
    }), " \u5206"), /*#__PURE__*/external_window_React_default.a.createElement("aside", {
      className: "tr"
    }, editData.question_id && /*#__PURE__*/external_window_React_default.a.createElement(es_button["a" /* default */], {
      type: "default",
      onClick: function onClick() {
        return setIsEdit(false);
      }
    }, "\u53D6\u6D88"), /*#__PURE__*/external_window_React_default.a.createElement(es_button["a" /* default */], {
      className: "ml20",
      type: "primary",
      onClick: function onClick() {
        return onSave();
      }
    }, "\u4FDD\u5B58")));
  };

  var actionArr = [{
    name: "删除",
    icon: "iconfont c-light-black ml30 icon-shanchu",
    id: "del"
  }, {
    name: "上移",
    icon: "iconfont c-green ml30 icon-shangyi_Hover",
    id: "up"
  }, {
    name: "下移",
    icon: "iconfont c-green ml30 icon-xiayi_moren",
    id: "down"
  }, {
    name: "编辑",
    icon: "iconfont c-green ml30 icon-bianjishijuan3x",
    id: "edit"
  }];

  var actionClick = /*#__PURE__*/function () {
    var _ref3 = Object(asyncToGenerator["a" /* default */])( /*#__PURE__*/regenerator_default.a.mark(function _callee3(item) {
      return regenerator_default.a.wrap(function _callee3$(_context3) {
        while (1) {
          switch (_context3.prev = _context3.next) {
            case 0:
              _context3.t0 = item.id;
              _context3.next = _context3.t0 === "del" ? 3 : _context3.t0 === "up" ? 5 : _context3.t0 === "down" ? 5 : _context3.t0 === "edit" ? 9 : 11;
              break;

            case 3:
              modal["a" /* default */].confirm({
                centered: true,
                okText: '确定',
                cancelText: '取消',
                title: '确认要删除这个问题吗？',
                onOk: function onOk() {
                  return Object(asyncToGenerator["a" /* default */])( /*#__PURE__*/regenerator_default.a.mark(function _callee2() {
                    return regenerator_default.a.wrap(function _callee2$(_context2) {
                      while (1) {
                        switch (_context2.prev = _context2.next) {
                          case 0:
                            _context2.next = 2;
                            return Object(service_polls["e" /* deleteExerciseBanksQuestion */])({
                              pollsId: editData.question_id
                            });

                          case 2:
                            dispatch({
                              type: "polls/getExerciseBanks",
                              payload: Object(objectSpread2["a" /* default */])({}, params)
                            });

                          case 3:
                          case "end":
                            return _context2.stop();
                        }
                      }
                    }, _callee2);
                  }))();
                }
              });

              return _context3.abrupt("break", 11);

            case 5:
              _context3.next = 7;
              return Object(service_polls["j" /* exercisesBanksMoveUpDown */])({
                exerciseId: editData === null || editData === void 0 ? void 0 : editData.question_id,
                opr: item.id
              });

            case 7:
              dispatch({
                type: "polls/getExerciseBanks",
                payload: Object(objectSpread2["a" /* default */])({}, params)
              });
              return _context3.abrupt("break", 11);

            case 9:
              setIsEdit(true);
              return _context3.abrupt("break", 11);

            case 11:
            case "end":
              return _context3.stop();
          }
        }
      }, _callee3);
    }));

    return function actionClick(_x) {
      return _ref3.apply(this, arguments);
    };
  }();

  var showList = function showList() {
    return /*#__PURE__*/external_window_React_default.a.createElement("aside", null, /*#__PURE__*/external_window_React_default.a.createElement("div", {
      className: editormodules_default.a.questionType
    }, /*#__PURE__*/external_window_React_default.a.createElement("div", null, /*#__PURE__*/external_window_React_default.a.createElement("span", {
      className: "font16 c-blue"
    }, editData.key, "\u3001\u7B80\u7B54\u9898"), "\uFF08", editData.question_score, "\u5206\uFF09"), !editData.hideAction && actionArr.map(function (item, index) {
      if (item.id === "up" && editData.key === 1) return null;
      if (item.id === "down" && editData.key === editData.len) return null;
      return /*#__PURE__*/external_window_React_default.a.createElement(tooltip["a" /* default */], {
        key: index,
        placement: "bottom",
        title: item.name
      }, /*#__PURE__*/external_window_React_default.a.createElement("span", {
        onClick: function onClick() {
          return actionClick(item);
        },
        className: item.icon
      }));
    })), /*#__PURE__*/external_window_React_default.a.createElement("div", {
      className: "mt5"
    }, editData.question_title), /*#__PURE__*/external_window_React_default.a.createElement("div", {
      className: editormodules_default.a.questionChoices
    }, /*#__PURE__*/external_window_React_default.a.createElement("p", null, /*#__PURE__*/external_window_React_default.a.createElement("strong", null, "\u53C2\u8003\u7B54\u6848\uFF1A")), /*#__PURE__*/external_window_React_default.a.createElement(RenderHtml["a" /* default */], {
      value: answer
    })));
  };

  return /*#__PURE__*/external_window_React_default.a.createElement("section", {
    className: editormodules_default.a.wrap
  }, !isEdit && showList(), isEdit && showEdit());
};

/* harmony default export */ var components_SubjectiveEditor = (Object(umiExports["a" /* connect */])(function (_ref4) {
  var problemset = _ref4.problemset,
      loading = _ref4.loading,
      globalSetting = _ref4.globalSetting;
  return {
    problemset: problemset,
    globalSetting: globalSetting,
    loading: loading.effects
  };
}, null, null, {
  forwardRef: true
})( /*#__PURE__*/Object(external_window_React_["forwardRef"])(SubjectiveEditor_SubjectiveEditor)));
// CONCATENATED MODULE: ./src/pages/User/Detail/Topics/Exercise/Detail/components/ShixunEditor/index.tsx




























var ShixunEditor_tagList = ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'];

var ShixunEditor_ShixunEditor = function ShixunEditor(_ref, ref) {
  var problemset = _ref.problemset,
      globalSetting = _ref.globalSetting,
      loading = _ref.loading,
      dispatch = _ref.dispatch,
      editData = _ref.editData,
      props = Object(objectWithoutProperties["a" /* default */])(_ref, ["problemset", "globalSetting", "loading", "dispatch", "editData"]);

  var _useState = Object(external_window_React_["useState"])(''),
      _useState2 = Object(slicedToArray["a" /* default */])(_useState, 2),
      name = _useState2[0],
      setName = _useState2[1];

  var _useState3 = Object(external_window_React_["useState"])(''),
      _useState4 = Object(slicedToArray["a" /* default */])(_useState3, 2),
      title = _useState4[0],
      setTitle = _useState4[1];

  var _useState5 = Object(external_window_React_["useState"])(''),
      _useState6 = Object(slicedToArray["a" /* default */])(_useState5, 2),
      analysis = _useState6[0],
      setAnalysis = _useState6[1];

  var _useState7 = Object(external_window_React_["useState"])([]),
      _useState8 = Object(slicedToArray["a" /* default */])(_useState7, 2),
      answerList = _useState8[0],
      setAnswerList = _useState8[1];

  var _useState9 = Object(external_window_React_["useState"])(''),
      _useState10 = Object(slicedToArray["a" /* default */])(_useState9, 2),
      activeOptionErrorIndex = _useState10[0],
      setActiveOptionErrorIndex = _useState10[1];

  var _useState11 = Object(external_window_React_["useState"])(),
      _useState12 = Object(slicedToArray["a" /* default */])(_useState11, 2),
      checked = _useState12[0],
      setChecked = _useState12[1];

  var _useState13 = Object(external_window_React_["useState"])(false),
      _useState14 = Object(slicedToArray["a" /* default */])(_useState13, 2),
      firstSetAnswerFlag = _useState14[0],
      setFirstSetAnswerFlag = _useState14[1];

  var _useState15 = Object(external_window_React_["useState"])([]),
      _useState16 = Object(slicedToArray["a" /* default */])(_useState15, 2),
      score = _useState16[0],
      setScore = _useState16[1];

  var _useState17 = Object(external_window_React_["useState"])(false),
      _useState18 = Object(slicedToArray["a" /* default */])(_useState17, 2),
      isEdit = _useState18[0],
      setIsEdit = _useState18[1];

  var params = Object(react_router["i" /* useParams */])();
  Object(external_window_React_["useEffect"])(function () {
    var _editData$shixun;

    if (editData.edit) {
      setIsEdit(true);
    }

    setName(editData.shixun_name);
    setTitle(editData.question_title);
    var arr = [];
    (_editData$shixun = editData.shixun) === null || _editData$shixun === void 0 ? void 0 : _editData$shixun.map(function (item) {
      arr.push(item.challenge_score);
    });
    setScore(arr);
  }, [editData]);
  Object(external_window_React_["useEffect"])(function () {
    setFirstSetAnswerFlag(false);
  }, [isEdit]);
  Object(external_window_React_["useImperativeHandle"])(ref, function () {
    return {
      onSave: onSave,
      isEdit: isEdit
    };
  });

  var onSave = /*#__PURE__*/function () {
    var _ref2 = Object(asyncToGenerator["a" /* default */])( /*#__PURE__*/regenerator_default.a.mark(function _callee() {
      var answerArray, isEmpty, res;
      return regenerator_default.a.wrap(function _callee$(_context) {
        while (1) {
          switch (_context.prev = _context.next) {
            case 0:
              answerArray = [];
              isEmpty = false;

              if (!isEmpty) {
                _context.next = 4;
                break;
              }

              return _context.abrupt("return", false);

            case 4:
              if (!editData.question_id) {
                _context.next = 10;
                break;
              }

              _context.next = 7;
              return Object(service_polls["u" /* putExerciseBankQuestions */])({
                "id": editData.question_id,
                "question_title": title,
                "shixun_name": name,
                "shixun_id": editData.shixun_id,
                "question_type": 5,
                "question_scores": score
              });

            case 7:
              res = _context.sent;
              _context.next = 13;
              break;

            case 10:
              _context.next = 12;
              return Object(service_polls["a" /* addExerciseBankQuestions */])({
                "exercise_bank_id": params.topicId,
                "question_title": title,
                "shixun_name": name,
                "shixun_id": editData.shixun_id,
                "question_type": 5,
                "question_scores": score
              });

            case 12:
              res = _context.sent;

            case 13:
              if (res.status === 0) {
                message["b" /* default */].success("保存成功");

                setIsEdit(false);
              }

              _context.next = 16;
              return dispatch({
                type: "polls/getExerciseBanks",
                payload: Object(objectSpread2["a" /* default */])({}, params)
              });

            case 16:
              return _context.abrupt("return", {
                name: title,
                analysis: analysis,
                standard_answers: answerArray,
                is_ordered: checked
              });

            case 17:
            case "end":
              return _context.stop();
          }
        }
      }, _callee);
    }));

    return function onSave() {
      return _ref2.apply(this, arguments);
    };
  }();

  var showEdit = function showEdit() {
    var _editData$shixun2;

    return /*#__PURE__*/external_window_React_default.a.createElement("aside", null, /*#__PURE__*/external_window_React_default.a.createElement("div", {
      className: editormodules_default.a.questionType
    }, /*#__PURE__*/external_window_React_default.a.createElement("div", null, /*#__PURE__*/external_window_React_default.a.createElement("span", {
      className: "font16 c-blue"
    }, "\u5B9E\u8BAD\u9898"), "\uFF08\u5BA2\u89C2\u9898\uFF0C\u7531\u7CFB\u7EDF\u81EA\u52A8\u8BC4\u5206\uFF0C\u5141\u8BB8\u624B\u52A8\u8C03\u5206\uFF09")), /*#__PURE__*/external_window_React_default.a.createElement("div", {
      className: "mt10"
    }, /*#__PURE__*/external_window_React_default.a.createElement(input["a" /* default */], {
      defaultValue: name,
      onChange: function onChange(e) {
        ;
        setName(e.target.value);
      }
    })), /*#__PURE__*/external_window_React_default.a.createElement("div", {
      className: "mt10"
    }, /*#__PURE__*/external_window_React_default.a.createElement(markdown_editor["a" /* default */], {
      id: "single-question-option-0",
      height: 155,
      placeholder: "\u8BF7\u8F93\u5165\u5B9E\u8BAD\u9898\u5B8C\u6210\u8981\u6C42",
      defaultValue: title,
      onChange: function onChange(value) {
        setTitle(value);
      }
    })), /*#__PURE__*/external_window_React_default.a.createElement("div", {
      className: "mt20"
    }, (_editData$shixun2 = editData.shixun) === null || _editData$shixun2 === void 0 ? void 0 : _editData$shixun2.map(function (item, index) {
      return /*#__PURE__*/external_window_React_default.a.createElement(row["a" /* default */], {
        gutter: [20, 20]
      }, /*#__PURE__*/external_window_React_default.a.createElement(col["a" /* default */], {
        flex: "1"
      }, index + 1, ".", item.challenge_name), /*#__PURE__*/external_window_React_default.a.createElement(col["a" /* default */], null, /*#__PURE__*/external_window_React_default.a.createElement(input_number["a" /* default */], {
        defaultValue: score[index],
        onChange: function onChange(value) {
          score[index] = value;
          setScore(score);
          console.log("srore:L", score[index]);
        }
      })));
    })), /*#__PURE__*/external_window_React_default.a.createElement("div", {
      className: "mt20"
    }, answerList.length > 1 && /*#__PURE__*/external_window_React_default.a.createElement("span", null, /*#__PURE__*/external_window_React_default.a.createElement(es_checkbox["a" /* default */], {
      checked: checked,
      onChange: function onChange(e) {
        return setChecked(e.target.checked);
      },
      className: "".concat(editormodules_default.a.color333, " font14")
    }, "\u591A\u4E2A\u586B\u7A7A\u7684\u7B54\u6848\u6709\u987A\u5E8F\u8981\u6C42"), /*#__PURE__*/external_window_React_default.a.createElement("span", {
      className: "".concat(editormodules_default.a.color999, " font12")
    }, "\uFF08\u9009\u4E2D\uFF0C\u6BCF\u4E2A\u586B\u7A7A\u7684\u7B54\u6848\u987A\u5E8F\u5FC5\u987B\u4E0E\u53C2\u8003\u7B54\u6848\u4E00\u81F4\uFF09"))), /*#__PURE__*/external_window_React_default.a.createElement("aside", {
      className: "tr"
    }, !(editData !== null && editData !== void 0 && editData.edit) && /*#__PURE__*/external_window_React_default.a.createElement(es_button["a" /* default */], {
      type: "default",
      onClick: function onClick() {
        return setIsEdit(false);
      }
    }, "\u53D6\u6D88"), /*#__PURE__*/external_window_React_default.a.createElement(es_button["a" /* default */], {
      className: "ml20",
      type: "primary",
      onClick: function onClick() {
        return onSave();
      }
    }, "\u4FDD\u5B58")));
  };

  var actionArr = [{
    name: "删除",
    icon: "iconfont c-light-black ml30 icon-shanchu",
    id: "del"
  }, {
    name: "上移",
    icon: "iconfont c-green ml30 icon-shangyi_Hover",
    id: "up"
  }, {
    name: "下移",
    icon: "iconfont c-green ml30 icon-xiayi_moren",
    id: "down"
  }, {
    name: "编辑",
    icon: "iconfont c-green ml30 icon-bianjishijuan3x",
    id: "edit"
  }];

  var actionClick = /*#__PURE__*/function () {
    var _ref3 = Object(asyncToGenerator["a" /* default */])( /*#__PURE__*/regenerator_default.a.mark(function _callee3(item) {
      return regenerator_default.a.wrap(function _callee3$(_context3) {
        while (1) {
          switch (_context3.prev = _context3.next) {
            case 0:
              _context3.t0 = item.id;
              _context3.next = _context3.t0 === "del" ? 3 : _context3.t0 === "up" ? 5 : _context3.t0 === "down" ? 5 : _context3.t0 === "edit" ? 9 : 11;
              break;

            case 3:
              modal["a" /* default */].confirm({
                centered: true,
                okText: '确定',
                cancelText: '取消',
                title: '确认要删除这个问题吗？',
                onOk: function onOk() {
                  return Object(asyncToGenerator["a" /* default */])( /*#__PURE__*/regenerator_default.a.mark(function _callee2() {
                    return regenerator_default.a.wrap(function _callee2$(_context2) {
                      while (1) {
                        switch (_context2.prev = _context2.next) {
                          case 0:
                            _context2.next = 2;
                            return Object(service_polls["e" /* deleteExerciseBanksQuestion */])({
                              pollsId: editData.question_id
                            });

                          case 2:
                            dispatch({
                              type: "polls/getExerciseBanks",
                              payload: Object(objectSpread2["a" /* default */])({}, params)
                            });

                          case 3:
                          case "end":
                            return _context2.stop();
                        }
                      }
                    }, _callee2);
                  }))();
                }
              });

              return _context3.abrupt("break", 11);

            case 5:
              _context3.next = 7;
              return Object(service_polls["j" /* exercisesBanksMoveUpDown */])({
                exerciseId: editData === null || editData === void 0 ? void 0 : editData.question_id,
                opr: item.id
              });

            case 7:
              dispatch({
                type: "polls/getExerciseBanks",
                payload: Object(objectSpread2["a" /* default */])({}, params)
              });
              return _context3.abrupt("break", 11);

            case 9:
              setIsEdit(true);
              return _context3.abrupt("break", 11);

            case 11:
            case "end":
              return _context3.stop();
          }
        }
      }, _callee3);
    }));

    return function actionClick(_x) {
      return _ref3.apply(this, arguments);
    };
  }();

  var showList = function showList() {
    var _editData$shixun3;

    return /*#__PURE__*/external_window_React_default.a.createElement("aside", null, /*#__PURE__*/external_window_React_default.a.createElement("div", {
      className: editormodules_default.a.questionType
    }, /*#__PURE__*/external_window_React_default.a.createElement("div", null, /*#__PURE__*/external_window_React_default.a.createElement("span", {
      className: "font16 c-blue"
    }, editData.key, "\u3001\u5B9E\u8BAD\u9898"), "\uFF08", editData.question_score, "\u5206\uFF09"), /*#__PURE__*/external_window_React_default.a.createElement("div", {
      className: "tr"
    }, /*#__PURE__*/external_window_React_default.a.createElement(react_router_dom["a" /* Link */], {
      target: "_blank",
      to: "/shixuns/".concat(editData.shixun_identifier, "/challenges")
    }, "\u5B9E\u8BAD\u8BE6\u60C5"), !editData.hideAction && actionArr.map(function (item, index) {
      if (item.id === "up" && editData.key === 1) return null;
      if (item.id === "down" && editData.key === editData.len) return null;
      return /*#__PURE__*/external_window_React_default.a.createElement(tooltip["a" /* default */], {
        key: index,
        placement: "bottom",
        title: item.name
      }, /*#__PURE__*/external_window_React_default.a.createElement("span", {
        onClick: function onClick() {
          return actionClick(item);
        },
        className: item.icon
      }));
    }))), /*#__PURE__*/external_window_React_default.a.createElement("div", {
      className: "font16"
    }, editData.shixun_name), /*#__PURE__*/external_window_React_default.a.createElement("div", {
      className: "mt30"
    }), (_editData$shixun3 = editData.shixun) === null || _editData$shixun3 === void 0 ? void 0 : _editData$shixun3.map(function (item, index) {
      return /*#__PURE__*/external_window_React_default.a.createElement("div", {
        key: index
      }, "\u7B2C", index + 1, "\u5173 ", /*#__PURE__*/external_window_React_default.a.createElement("span", {
        className: "ml10"
      }, item.challenge_name), " ", /*#__PURE__*/external_window_React_default.a.createElement("span", {
        className: "ml10"
      }, item.challenge_score));
    }));
  };

  return /*#__PURE__*/external_window_React_default.a.createElement("section", {
    className: editormodules_default.a.wrap
  }, !isEdit && showList(), isEdit && showEdit());
}; // export default connect(
//   ({
//     problemset,
//     loading,
//     globalSetting,
//   }: {
//     problemset: ProblemsetModelState;
//     loading: Loading;
//     globalSetting: GlobalSettingModelState;
//   }) => ({
//     problemset,
//     globalSetting,
//     loading: loading.effects,
//   }),
// )(ShixunEditor);


/* harmony default export */ var components_ShixunEditor = (Object(umiExports["a" /* connect */])(function (_ref4) {
  var problemset = _ref4.problemset,
      loading = _ref4.loading,
      globalSetting = _ref4.globalSetting;
  return {
    problemset: problemset,
    globalSetting: globalSetting,
    loading: loading.effects
  };
}, null, null, {
  forwardRef: true
})( /*#__PURE__*/Object(external_window_React_["forwardRef"])(ShixunEditor_ShixunEditor)));
// EXTERNAL MODULE: ./src/pages/User/Detail/Topics/Exercise/Detail/index.less?modules
var Detailmodules = __webpack_require__("UU91");
var Detailmodules_default = /*#__PURE__*/__webpack_require__.n(Detailmodules);

// EXTERNAL MODULE: ./src/pages/User/Detail/Topics/components/SendToClassModal.tsx
var SendToClassModal = __webpack_require__("fJjg");

// CONCATENATED MODULE: ./src/pages/User/Detail/Topics/Exercise/Detail/index.tsx












































var SubMenu = menu["a" /* default */].SubMenu;
var Content = layout["a" /* default */].Content,
    Sider = layout["a" /* default */].Sider;

var Detail_ShixunsListPage = function ShixunsListPage(_ref) {
  var _polls$exerciseBanks9, _polls$exerciseBanks10, _polls$exerciseBanks11, _polls$exerciseBanks12, _polls$exerciseBanks13, _polls$exerciseBanks14, _polls$exerciseBanks15, _polls$exerciseBanks16, _polls$exerciseBanks17, _polls$exerciseBanks18, _polls$exerciseBanks19, _polls$exerciseBanks20, _polls$exerciseBanks21, _polls$exerciseBanks22, _polls$exerciseBanks23, _polls$exerciseBanks24, _polls$exerciseBanks25, _polls$exerciseBanks26, _polls$exerciseBanks27, _polls$exerciseBanks28, _polls$exerciseBanks29, _polls$exerciseBanks30, _polls$exerciseBanks31, _polls$exerciseBanks32, _polls$exerciseBanks33, _polls$exerciseBanks34, _polls$exerciseBanks35, _polls$exerciseBanks36, _polls$exerciseBanks37, _polls$exerciseBanks38, _polls$exerciseBanks39, _polls$exerciseBanks40, _polls$exerciseBanks41, _polls$exerciseBanks42, _polls$exerciseBanks43, _polls$exerciseBanks44, _polls$exerciseBanks45, _polls$exerciseBanks46, _polls$exerciseBanks47, _polls$exerciseBanks48, _polls$exerciseBanks49, _polls$exerciseBanks50, _polls$exerciseBanks51, _polls$exerciseBanks52, _polls$exerciseBanks53, _polls$exerciseBanks54, _polls$exerciseBanks55, _polls$exerciseBanks56, _polls$exerciseBanks57, _polls$exerciseBanks58, _polls$exerciseBanks59, _polls$exerciseBanks60, _polls$exerciseBanks61, _polls$exerciseBanks62, _polls$exerciseBanks63, _polls$exerciseBanks64, _polls$exerciseBanks65;

  var polls = _ref.polls,
      globalSetting = _ref.globalSetting,
      loading = _ref.loading,
      user = _ref.user,
      dispatch = _ref.dispatch,
      props = Object(objectWithoutProperties["a" /* default */])(_ref, ["polls", "globalSetting", "loading", "user", "dispatch"]);

  var params = Object(react_router["i" /* useParams */])();
  var location = Object(react_router["h" /* useLocation */])();
  var userInfo = user.userInfo;

  var _Form$useForm = es_form["a" /* default */].useForm(),
      _Form$useForm2 = Object(slicedToArray["a" /* default */])(_Form$useForm, 1),
      form = _Form$useForm2[0];

  var _useState = Object(external_window_React_["useState"])([]),
      _useState2 = Object(slicedToArray["a" /* default */])(_useState, 2),
      editData = _useState2[0],
      setEditData = _useState2[1];

  var _useState3 = Object(external_window_React_["useState"])(false),
      _useState4 = Object(slicedToArray["a" /* default */])(_useState3, 2),
      isEdit = _useState4[0],
      setIsEdit = _useState4[1];

  var questionType = [{
    name: "选择题",
    id: 0
  }, {
    name: "判断题",
    id: 2
  }, {
    name: "填空题",
    id: 3
  }, {
    name: "简答题",
    id: 4
  }, {
    name: "实训题",
    id: 5
  }];
  var childrenRef = Object(external_window_React_["useRef"])();
  Object(external_window_React_["useEffect"])(function () {
    var _polls$exerciseBanks;

    if ((_polls$exerciseBanks = polls.exerciseBanks) !== null && _polls$exerciseBanks !== void 0 && _polls$exerciseBanks.exercise_questions) {
      var _polls$exerciseBanks2, _polls$exerciseBanks3, _polls$exerciseBanks4, _polls$exerciseBanks5, _polls$exerciseBanks6;

      setEditData(Object(toConsumableArray["a" /* default */])((_polls$exerciseBanks2 = polls.exerciseBanks) === null || _polls$exerciseBanks2 === void 0 ? void 0 : _polls$exerciseBanks2.exercise_questions));
      form.setFieldsValue({
        exercise_name: (_polls$exerciseBanks3 = polls.exerciseBanks) === null || _polls$exerciseBanks3 === void 0 ? void 0 : (_polls$exerciseBanks4 = _polls$exerciseBanks3.exercise) === null || _polls$exerciseBanks4 === void 0 ? void 0 : _polls$exerciseBanks4.exercise_name,
        exercise_description: (_polls$exerciseBanks5 = polls.exerciseBanks) === null || _polls$exerciseBanks5 === void 0 ? void 0 : (_polls$exerciseBanks6 = _polls$exerciseBanks5.exercise) === null || _polls$exerciseBanks6 === void 0 ? void 0 : _polls$exerciseBanks6.exercise_description
      });
    }
  }, [polls.exerciseBanks]);
  Object(external_window_React_["useEffect"])(function () {
    dispatch({
      type: "polls/getExerciseBanks",
      payload: Object(objectSpread2["a" /* default */])({}, params)
    });
  }, [params.categoryId]);

  var save = /*#__PURE__*/function () {
    var _ref2 = Object(asyncToGenerator["a" /* default */])( /*#__PURE__*/regenerator_default.a.mark(function _callee() {
      var _polls$exerciseBanks7, _polls$exerciseBanks8;

      var value;
      return regenerator_default.a.wrap(function _callee$(_context) {
        while (1) {
          switch (_context.prev = _context.next) {
            case 0:
              _context.next = 2;
              return form.validateFields();

            case 2:
              value = form.getFieldValue();
              value.is_md = true;
              value.topicId = (_polls$exerciseBanks7 = polls.exerciseBanks) === null || _polls$exerciseBanks7 === void 0 ? void 0 : (_polls$exerciseBanks8 = _polls$exerciseBanks7.exercise) === null || _polls$exerciseBanks8 === void 0 ? void 0 : _polls$exerciseBanks8.id;
              setIsEdit(false);
              _context.next = 8;
              return Object(service_polls["v" /* putExerciseBanks */])(Object(objectSpread2["a" /* default */])({}, value));

            case 8:
              dispatch({
                type: "polls/getExerciseBanks",
                payload: Object(objectSpread2["a" /* default */])({}, params)
              });

            case 9:
            case "end":
              return _context.stop();
          }
        }
      }, _callee);
    }));

    return function save() {
      return _ref2.apply(this, arguments);
    };
  }();

  var addQuestion = /*#__PURE__*/function () {
    var _ref3 = Object(asyncToGenerator["a" /* default */])( /*#__PURE__*/regenerator_default.a.mark(function _callee2(type) {
      var d;
      return regenerator_default.a.wrap(function _callee2$(_context2) {
        while (1) {
          switch (_context2.prev = _context2.next) {
            case 0:
              _context2.next = 2;
              return childrenRef === null || childrenRef === void 0 ? void 0 : childrenRef.current;

            case 2:
              d = _context2.sent;

              if (!(d !== null && d !== void 0 && d.isEdit)) {
                _context2.next = 6;
                break;
              }

              message["b" /* default */].error("不能同时编辑两题");

              return _context2.abrupt("return");

            case 6:
              if (type === 5) {
                dispatch({
                  type: "classroomList/setActionTabs",
                  payload: {
                    key: "选用实践项目"
                  }
                });
              } else {
                setEditData([].concat(Object(toConsumableArray["a" /* default */])(editData), [{
                  question_type: type
                }]));
              }

            case 7:
            case "end":
              return _context2.stop();
          }
        }
      }, _callee2);
    }));

    return function addQuestion(_x) {
      return _ref3.apply(this, arguments);
    };
  }();

  var handleSend = function handleSend() {
    dispatch({
      type: 'userDetail/setActionTabs',
      payload: {
        key: 'UserDetail-SendToClass',
        params: {
          object_id: [params.topicId],
          object_type: 'exercise'
        }
      }
    });
  };

  var renderQuestion = function renderQuestion() {
    return editData === null || editData === void 0 ? void 0 : editData.map(function (v, k) {
      v.key = k + 1;
      v.len = editData.length;

      if (v.question_type === 0) {
        return /*#__PURE__*/external_window_React_default.a.createElement("aside", null, /*#__PURE__*/external_window_React_default.a.createElement(components_SingleEditor, {
          ref: childrenRef,
          editData: v
        }), /*#__PURE__*/external_window_React_default.a.createElement(divider["a" /* default */], null));
      }

      if (v.question_type === 1) {
        return /*#__PURE__*/external_window_React_default.a.createElement("aside", null, /*#__PURE__*/external_window_React_default.a.createElement(MultipleEditor, {
          ref: childrenRef,
          editData: v
        }), /*#__PURE__*/external_window_React_default.a.createElement(divider["a" /* default */], null));
      }

      if (v.question_type === 2) {
        return /*#__PURE__*/external_window_React_default.a.createElement("aside", null, /*#__PURE__*/external_window_React_default.a.createElement(components_JudgmentEditor, {
          ref: childrenRef,
          editData: v
        }), /*#__PURE__*/external_window_React_default.a.createElement(divider["a" /* default */], null));
      }

      if (v.question_type === 3) {
        return /*#__PURE__*/external_window_React_default.a.createElement("aside", null, /*#__PURE__*/external_window_React_default.a.createElement(components_CompletionEditor, {
          editData: v
        }), /*#__PURE__*/external_window_React_default.a.createElement(divider["a" /* default */], null));
      }

      if (v.question_type === 4) {
        return /*#__PURE__*/external_window_React_default.a.createElement("aside", null, /*#__PURE__*/external_window_React_default.a.createElement(components_SubjectiveEditor, {
          editData: v
        }), /*#__PURE__*/external_window_React_default.a.createElement(divider["a" /* default */], null));
      }

      if (v.question_type === 5) {
        return /*#__PURE__*/external_window_React_default.a.createElement("aside", null, /*#__PURE__*/external_window_React_default.a.createElement(components_ShixunEditor, {
          editData: v
        }), /*#__PURE__*/external_window_React_default.a.createElement(divider["a" /* default */], null));
      }
    });
  };

  return /*#__PURE__*/external_window_React_default.a.createElement("section", {
    className: "edu-container"
  }, /*#__PURE__*/external_window_React_default.a.createElement("section", {
    className: "animated fadeIn"
  }, /*#__PURE__*/external_window_React_default.a.createElement("aside", {
    className: "mt10"
  }, userInfo && /*#__PURE__*/external_window_React_default.a.createElement(breadcrumb["a" /* default */], {
    separator: ">"
  }, /*#__PURE__*/external_window_React_default.a.createElement(breadcrumb["a" /* default */].Item, null, /*#__PURE__*/external_window_React_default.a.createElement(react_router_dom["a" /* Link */], {
    to: "/users/".concat(params.username, "/").concat(params.topictype === 'personal' ? 'topics' : 'topicbank', "/").concat(params.topictype)
  }, params.topictype === 'personal' ? '我的题库' : '公共题库')), /*#__PURE__*/external_window_React_default.a.createElement(breadcrumb["a" /* default */].Item, null, "\u8BE6\u60C5"))), /*#__PURE__*/external_window_React_default.a.createElement("aside", {
    className: [Detailmodules_default.a.title, 'mt20'].join(' ')
  }, /*#__PURE__*/external_window_React_default.a.createElement(row["a" /* default */], {
    style: {
      width: "100%"
    },
    align: "middle"
  }, /*#__PURE__*/external_window_React_default.a.createElement(col["a" /* default */], {
    flex: "1"
  }, /*#__PURE__*/external_window_React_default.a.createElement("strong", {
    className: "font20 ml5"
  }, (_polls$exerciseBanks9 = polls.exerciseBanks) === null || _polls$exerciseBanks9 === void 0 ? void 0 : (_polls$exerciseBanks10 = _polls$exerciseBanks9.exercise) === null || _polls$exerciseBanks10 === void 0 ? void 0 : _polls$exerciseBanks10.exercise_name), /*#__PURE__*/external_window_React_default.a.createElement(util["k" /* StatusClassroomsTags */], {
    status: [(_polls$exerciseBanks11 = polls.exerciseBanks) !== null && _polls$exerciseBanks11 !== void 0 && (_polls$exerciseBanks12 = _polls$exerciseBanks11.exercise) !== null && _polls$exerciseBanks12 !== void 0 && _polls$exerciseBanks12.is_public ? "公开" : "私有"]
  })), /*#__PURE__*/external_window_React_default.a.createElement(col["a" /* default */], null, /*#__PURE__*/external_window_React_default.a.createElement(react_router_dom["a" /* Link */], {
    className: "font16 c-light-black",
    to: "/users/".concat(userInfo.login, "/topics/").concat(params.topictype)
  }, "\u8FD4\u56DE"))))), /*#__PURE__*/external_window_React_default.a.createElement("section", {
    className: [Detailmodules_default.a.bg, 'pl30', 'pr30', 'pb30', 'mt20 relative'].join(' ')
  }, /*#__PURE__*/external_window_React_default.a.createElement("div", {
    className: Detailmodules_default.a.export
  }, ((_polls$exerciseBanks13 = polls.exerciseBanks) === null || _polls$exerciseBanks13 === void 0 ? void 0 : _polls$exerciseBanks13.authorize) && /*#__PURE__*/external_window_React_default.a.createElement(external_window_React_default.a.Fragment, null, /*#__PURE__*/external_window_React_default.a.createElement("a", {
    onClick: function onClick(e) {
      e.preventDefault();

      modal["a" /* default */].confirm({
        centered: true,
        okText: '确定',
        cancelText: '取消',
        title: "提示",
        content: "是否确认删除?",
        onOk: function () {
          var _onOk = Object(asyncToGenerator["a" /* default */])( /*#__PURE__*/regenerator_default.a.mark(function _callee3() {
            var res;
            return regenerator_default.a.wrap(function _callee3$(_context3) {
              while (1) {
                switch (_context3.prev = _context3.next) {
                  case 0:
                    _context3.next = 2;
                    return Object(service_user["g" /* deleteQuestionBanks */])({
                      object_type: "normal",
                      object_id: [params.topicId]
                    });

                  case 2:
                    res = _context3.sent;

                    if (res.status === 0) {
                      umiExports["d" /* history */].push("/users/".concat(params.username, "/topics/personal"));
                    }

                  case 4:
                  case "end":
                    return _context3.stop();
                }
              }
            }, _callee3);
          }));

          function onOk() {
            return _onOk.apply(this, arguments);
          }

          return onOk;
        }()
      });
    }
  }, "\u5220\u9664"), /*#__PURE__*/external_window_React_default.a.createElement(react_router_dom["a" /* Link */], {
    to: "/users/".concat(userInfo.login, "/topics/").concat(params.topicId, "/").concat(params.topictype, "/exercise/edit")
  }, "\u7F16\u8F91")), /*#__PURE__*/external_window_React_default.a.createElement("a", {
    onClick: function onClick(e) {
      e.preventDefault();
      handleSend();
    }
  }, "\u53D1\u9001")), /*#__PURE__*/external_window_React_default.a.createElement(tabs["a" /* default */], {
    className: Detailmodules_default.a.tabs
  }, /*#__PURE__*/external_window_React_default.a.createElement(tabs["a" /* default */].TabPane, {
    tab: /*#__PURE__*/external_window_React_default.a.createElement("span", {
      className: "font16 pt10 pb12"
    }, "\u5185\u5BB9\u8BE6\u60C5"),
    key: "1"
  }, /*#__PURE__*/external_window_React_default.a.createElement("div", {
    className: "c-light-black"
  }, (_polls$exerciseBanks14 = polls.exerciseBanks) === null || _polls$exerciseBanks14 === void 0 ? void 0 : (_polls$exerciseBanks15 = _polls$exerciseBanks14.exercise) === null || _polls$exerciseBanks15 === void 0 ? void 0 : _polls$exerciseBanks15.exercise_description))), isEdit && /*#__PURE__*/external_window_React_default.a.createElement(es_form["a" /* default */], {
    layout: "vertical",
    form: form
  }, /*#__PURE__*/external_window_React_default.a.createElement(es_form["a" /* default */].Item, {
    name: "exercise_name",
    label: "\u8BD5\u5377\u6807\u9898\uFF1A",
    rules: [{
      required: true,
      message: "请填写试卷标题"
    }]
  }, /*#__PURE__*/external_window_React_default.a.createElement(input["a" /* default */], {
    maxLength: 60,
    placeholder: "\u8BD5\u5377\u6807\u9898\uFF0C\u6700\u5927\u9650\u523660\u4E2A\u5B57\u7B26"
  })), /*#__PURE__*/external_window_React_default.a.createElement(es_form["a" /* default */].Item, {
    label: "\u8BD5\u5377\u987B\u77E5\uFF1A",
    name: "exercise_description"
  }, /*#__PURE__*/external_window_React_default.a.createElement(input["a" /* default */].TextArea, {
    rows: 6,
    placeholder: "\u8BF7\u5728\u6B64\u8F93\u5165\u672C\u6B21\u8BD5\u5377\u7B54\u9898\u7684\u76F8\u5173\u8BF4\u660E\uFF0C\u6700\u5927\u9650\u5236100\u4E2A\u5B57\u7B26"
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    className: "tr"
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    className: "color-blue"
  }, (_polls$exerciseBanks60 = polls.exerciseBanks) === null || _polls$exerciseBanks60 === void 0 ? void 0 : (_polls$exerciseBanks61 = _polls$exerciseBanks60.exercise_types) === null || _polls$exerciseBanks61 === void 0 ? void 0 : _polls$exerciseBanks61.q_counts), " \u9898\uFF0C \u5171 ", /*#__PURE__*/external_window_React_default.a.createElement("span", {
    className: "".concat(((_polls$exerciseBanks62 = polls.exerciseBanks) === null || _polls$exerciseBanks62 === void 0 ? void 0 : (_polls$exerciseBanks63 = _polls$exerciseBanks62.exercise_types) === null || _polls$exerciseBanks63 === void 0 ? void 0 : _polls$exerciseBanks63.q_scores) > 100 ? 'color-red font-bd' : 'color-orange')
  }, (_polls$exerciseBanks64 = polls.exerciseBanks) === null || _polls$exerciseBanks64 === void 0 ? void 0 : (_polls$exerciseBanks65 = _polls$exerciseBanks64.exercise_types) === null || _polls$exerciseBanks65 === void 0 ? void 0 : _polls$exerciseBanks65.q_scores), " \u5206"))), /*#__PURE__*/external_window_React_default.a.createElement("section", {
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};

/* harmony default export */ var Detail = __webpack_exports__["default"] = (Object(umiExports["a" /* connect */])(function (_ref4) {
  var polls = _ref4.polls,
      loading = _ref4.loading,
      user = _ref4.user,
      globalSetting = _ref4.globalSetting;
  return {
    polls: polls,
    globalSetting: globalSetting,
    user: user,
    loading: loading.effects
  };
})(Detail_ShixunsListPage));

/***/ }),

/***/ "Nska":
/*!*******************************************************************************!*\
  !*** ./src/pages/User/Detail/Topics/components/SendToClassModal.less?modules ***!
  \*******************************************************************************/
/*! no static exports found */
/*! exports used: default */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

// extracted by mini-css-extract-plugin
module.exports = {"wrap":"wrap___1qNoS","title":"title___18s87","radioWrap":"radioWrap___3ZobS","radio":"radio___19YEl","colorFF0000":"colorFF0000___2BuLq","pagination":"pagination___18hXH"};

/***/ }),

/***/ "O2Wb":
/*!******************************************************************!*\
  !*** ./src/components/Editor/NullChildEditor/index.less?modules ***!
  \******************************************************************/
/*! no static exports found */
/*! exports used: default */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

// extracted by mini-css-extract-plugin
module.exports = {"flex":"flex___2gmSR","flex1":"flex1___3Tu1g","color666":"color666___2uyGL","error":"error___yJ86W","deleteIcon":"deleteIcon___1D2tg","addIcon":"addIcon___2VIYB"};

/***/ }),

/***/ "Ot1p":
/*!**************************************************************!*\
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  \**************************************************************/
/*! exports provided: default */
/*! exports used: default */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/createForOfIteratorHelper.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/defineProperty.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/extends.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/slicedToArray.js */
/*! ModuleConcatenation bailout: Cannot concat with ./src/components/RenderHtml/index.tsx */
/*! ModuleConcatenation bailout: Cannot concat with ./src/components/markdown-editor/code-block/index.tsx */
/*! ModuleConcatenation bailout: Cannot concat with ./src/components/modal.tsx */
/*! ModuleConcatenation bailout: Cannot concat with ./src/components/useInterval.tsx */
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/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/antd/es/input-number/index.js */
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/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/antd/es/input/index.js */
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/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/antd/es/modal/index.js */
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/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/antd/es/radio/index.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/antd/es/radio/style/index.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/codemirror/lib/codemirror.js (<- Module is not an ECMAScript module) */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/resize-observer-polyfill/dist/ResizeObserver.es.js (<- Module uses injected variables (global)) */
/*! ModuleConcatenation bailout: Cannot concat with external "window.React" (<- Module is not an ECMAScript module) */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";

// EXTERNAL MODULE: ./node_modules/antd/es/modal/style/index.js
var modal_style = __webpack_require__("2qtc");

// EXTERNAL MODULE: ./node_modules/antd/es/modal/index.js + 7 modules
var modal = __webpack_require__("kLXV");

// EXTERNAL MODULE: ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/createForOfIteratorHelper.js
var createForOfIteratorHelper = __webpack_require__("rAM+");

// EXTERNAL MODULE: ./node_modules/antd/es/message/style/index.js
var message_style = __webpack_require__("miYZ");

// EXTERNAL MODULE: ./node_modules/antd/es/message/index.js + 1 modules
var message = __webpack_require__("tsqr");

// EXTERNAL MODULE: ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/slicedToArray.js + 1 modules
var slicedToArray = __webpack_require__("tJVT");

// EXTERNAL MODULE: ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/defineProperty.js
var defineProperty = __webpack_require__("jrin");

// EXTERNAL MODULE: external "window.React"
var external_window_React_ = __webpack_require__("cDcd");
var external_window_React_default = /*#__PURE__*/__webpack_require__.n(external_window_React_);

// EXTERNAL MODULE: ./node_modules/codemirror/lib/codemirror.js
var codemirror = __webpack_require__("VrN/");
var codemirror_default = /*#__PURE__*/__webpack_require__.n(codemirror);

// EXTERNAL MODULE: ./node_modules/resize-observer-polyfill/dist/ResizeObserver.es.js
var ResizeObserver_es = __webpack_require__("bdgK");

// EXTERNAL MODULE: ./node_modules/codemirror/lib/codemirror.css
var lib_codemirror = __webpack_require__("p77/");

// EXTERNAL MODULE: ./node_modules/codemirror/addon/edit/closetag.js
var closetag = __webpack_require__("Bd2K");

// EXTERNAL MODULE: ./node_modules/codemirror/addon/edit/closebrackets.js
var closebrackets = __webpack_require__("ELLl");

// EXTERNAL MODULE: ./node_modules/codemirror/addon/display/placeholder.js
var display_placeholder = __webpack_require__("19Vz");

// EXTERNAL MODULE: ./node_modules/codemirror/mode/markdown/markdown.js
var markdown = __webpack_require__("lZu9");

// EXTERNAL MODULE: ./node_modules/codemirror/mode/stex/stex.js
var stex = __webpack_require__("+NIl");

// EXTERNAL MODULE: ./src/components/markdown-editor/index.less
var markdown_editor = __webpack_require__("kSUc");

// EXTERNAL MODULE: ./src/components/RenderHtml/index.tsx + 1 modules
var RenderHtml = __webpack_require__("9Bee");

// CONCATENATED MODULE: ./src/components/RenderHtml/stex.tsx
 // const latexjs = require('latex-l.js/dist/latex.js'); 
// import "latex-l.js/dist/css/base.css"

/* harmony default export */ var RenderHtml_stex = (function (_ref) {
  var _ref$value = _ref.value,
      value = _ref$value === void 0 ? '' : _ref$value,
      className = _ref.className,
      showTextOnly = _ref.showTextOnly,
      showLines = _ref.showLines,
      _ref$style = _ref.style,
      style = _ref$style === void 0 ? {} : _ref$style;
  var html = Object(external_window_React_["useMemo"])(function () {
    // try {
    //   const latex = value || 'This is some text';
    //   let generator = new latexjs.default.HtmlGenerator({ hyphenate: true })
    //   let doc = latexjs.default.parse(latex, { generator: generator }).htmlDocument()
    //   return doc.body.innerHTML
    // }catch(e){
    //   console.log("e:",e)
    //   return "错误的latex语法，请检查"
    // }
    return "";
  }, [value]);
  return /*#__PURE__*/external_window_React_default.a.createElement(external_window_React_default.a.Fragment, null, /*#__PURE__*/external_window_React_default.a.createElement("div", {
    dangerouslySetInnerHTML: {
      __html: html
    }
  }));
});
// EXTERNAL MODULE: ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/extends.js
var esm_extends = __webpack_require__("0Owb");

// EXTERNAL MODULE: ./src/components/markdown-editor/toolbar/index.less
var toolbar = __webpack_require__("dejd");

// EXTERNAL MODULE: ./src/components/markdown-editor/css/iconfont.css
var iconfont = __webpack_require__("C+DQ");

// CONCATENATED MODULE: ./src/components/markdown-editor/toolbar/index.tsx




var DEFAULTICONS = [{
  title: '粗体',
  icon: 'icon-bold',
  actionName: 'bold'
}, {
  title: '斜体',
  icon: 'icon-italic',
  actionName: 'italic'
}, '|', {
  title: '无序列表',
  icon: 'icon-unorder-list',
  actionName: 'list-ul'
}, {
  title: '有序列表',
  icon: 'icon-order-list',
  actionName: 'list-ol'
}, '|', {
  title: '行内代码',
  icon: 'icon-code',
  actionName: 'code'
}, {
  title: '代码块（多语言风格）',
  icon: 'icon-file-code',
  actionName: 'code-block'
}, {
  title: '链接',
  icon: 'icon-link',
  actionName: 'link'
}, '|', {
  title: '行内公式',
  icon: 'icon-sum',
  actionName: 'inline-latex'
}, {
  title: '多行公式',
  icon: 'icon-formula',
  actionName: 'latex'
}, '|', {
  title: '添加图片',
  icon: 'icon-picture',
  actionName: 'upload-image'
}, {
  title: '表格',
  icon: 'icon-table',
  actionName: 'add-table'
}, '|', {
  title: '换行',
  icon: 'icon-minus',
  actionName: 'line-break'
}, {
  title: '清空',
  icon: 'icon-eraser',
  actionName: 'eraser'
}];

function AButton(_ref) {
  var onActionCallback = _ref.onActionCallback,
      title = _ref.title,
      icon = _ref.icon,
      actionName = _ref.actionName,
      _ref$className = _ref.className,
      className = _ref$className === void 0 ? '' : _ref$className,
      children = _ref.children;

  function onAction() {
    onActionCallback(actionName);
  }

  return /*#__PURE__*/external_window_React_default.a.createElement("a", {
    title: title,
    className: className,
    onClick: onAction
  }, /*#__PURE__*/external_window_React_default.a.createElement("i", {
    className: "md-iconfont ".concat(icon)
  }), children);
}

/* harmony default export */ var markdown_editor_toolbar = (function (_ref2) {
  var watch = _ref2.watch,
      showNullButton = _ref2.showNullButton,
      onActionCallback = _ref2.onActionCallback,
      fullScreen = _ref2.fullScreen,
      insertTemp = _ref2.insertTemp,
      hidetoolBar = _ref2.hidetoolBar;
  var icons = [].concat(DEFAULTICONS, [{
    title: "".concat(watch ? '关闭实时预览' : '开启实时预览'),
    icon: "".concat(watch ? 'icon-eye-slash' : 'icon-eye'),
    actionName: 'trigger-watch'
  }]);
  return /*#__PURE__*/external_window_React_default.a.createElement("ul", {
    className: "markdown-toolbar-container"
  }, !hidetoolBar && icons.map(function (item, index) {
    return /*#__PURE__*/external_window_React_default.a.createElement("li", {
      key: index
    }, item.actionName ? /*#__PURE__*/external_window_React_default.a.createElement(AButton, Object(esm_extends["a" /* default */])({}, item, {
      onActionCallback: onActionCallback
    })) : /*#__PURE__*/external_window_React_default.a.createElement("span", {
      className: "v-line"
    }));
  }), showNullButton ? /*#__PURE__*/external_window_React_default.a.createElement("li", null, /*#__PURE__*/external_window_React_default.a.createElement(AButton, {
    icon: "icon-edit",
    className: "btn-null",
    title: "\u589E\u52A0\u586B\u7A7A",
    actionName: "add-null-ch",
    onActionCallback: onActionCallback
  }, /*#__PURE__*/external_window_React_default.a.createElement("span", {
    className: "fill-tip"
  }, "\u70B9\u51FB\u63D2\u5165\b\u586B\u7A7A\u9879"))) : null, insertTemp && /*#__PURE__*/external_window_React_default.a.createElement("li", null, /*#__PURE__*/external_window_React_default.a.createElement(AButton, {
    icon: "icon-edit",
    className: "btn-null",
    title: "\u63D2\u5165\u6A21\u677F",
    actionName: "inster-template-".concat(insertTemp),
    onActionCallback: onActionCallback
  }, /*#__PURE__*/external_window_React_default.a.createElement("span", {
    className: "fill-tip"
  }, "\u63D2\u5165\u6A21\u677F"))), /*#__PURE__*/external_window_React_default.a.createElement("li", {
    className: "btn-full-screen"
  }, /*#__PURE__*/external_window_React_default.a.createElement(AButton, {
    icon: "".concat(fullScreen ? 'icon-shrink' : 'icon-enlarge'),
    title: fullScreen ? '关闭全屏' : '开启全屏',
    actionName: "trigger-full-screen",
    onActionCallback: onActionCallback
  })));
});
// EXTERNAL MODULE: ./src/components/modal.tsx
var components_modal = __webpack_require__("M8RZ");

// EXTERNAL MODULE: ./node_modules/antd/es/button/style/index.js
var button_style = __webpack_require__("+L6B");

// EXTERNAL MODULE: ./node_modules/antd/es/button/index.js
var es_button = __webpack_require__("2/Rp");

// EXTERNAL MODULE: ./node_modules/antd/es/form/style/index.js
var form_style = __webpack_require__("y8nQ");

// EXTERNAL MODULE: ./node_modules/antd/es/form/index.js + 11 modules
var es_form = __webpack_require__("Vl3Y");

// EXTERNAL MODULE: ./node_modules/antd/es/input/style/index.js
var input_style = __webpack_require__("5NDa");

// EXTERNAL MODULE: ./node_modules/antd/es/input/index.js + 3 modules
var input = __webpack_require__("5rEg");

// CONCATENATED MODULE: ./src/components/markdown-editor/link/index.tsx








var formItemLayout = {
  labelCol: {
    span: 4
  },
  wrapperCol: {
    span: 20
  }
};
/* harmony default export */ var markdown_editor_link = (function (_ref) {
  var callback = _ref.callback,
      onCancel = _ref.onCancel;

  function onSubmit(values) {
    callback(values);
  }

  return /*#__PURE__*/external_window_React_default.a.createElement(es_form["a" /* default */], Object(esm_extends["a" /* default */])({}, formItemLayout, {
    initialValues: {
      link: 'http://',
      title: ''
    },
    className: "link-panel",
    onFinish: onSubmit
  }), /*#__PURE__*/external_window_React_default.a.createElement(es_form["a" /* default */].Item, {
    label: "\u94FE\u63A5\u5730\u5740",
    name: "link",
    rules: [{
      required: true,
      message: '请输入链接地址'
    }]
  }, /*#__PURE__*/external_window_React_default.a.createElement(input["a" /* default */], null)), /*#__PURE__*/external_window_React_default.a.createElement(es_form["a" /* default */].Item, {
    label: "\u94FE\u63A5\u6807\u9898",
    name: "title",
    rules: [{
      required: true,
      message: '请输入链接标题'
    }]
  }, /*#__PURE__*/external_window_React_default.a.createElement(input["a" /* default */], null)), /*#__PURE__*/external_window_React_default.a.createElement("div", {
    className: "flex-container flex-end"
  }, /*#__PURE__*/external_window_React_default.a.createElement(es_button["a" /* default */], {
    type: "primary",
    htmlType: "submit",
    style: {
      marginRight: 10
    }
  }, "\u786E\u5B9A"), /*#__PURE__*/external_window_React_default.a.createElement(es_button["a" /* default */], {
    type: "ghost",
    onClick: onCancel
  }, "\u53D6\u6D88")));
});
// EXTERNAL MODULE: ./src/components/markdown-editor/code-block/index.tsx
var code_block = __webpack_require__("7ahc");

// EXTERNAL MODULE: ./src/components/markdown-editor/upload-image/index.less
var upload_image = __webpack_require__("HmJG");

// EXTERNAL MODULE: ./src/pages/tasks/util.js
var util = __webpack_require__("BjJ7");

// CONCATENATED MODULE: ./src/components/markdown-editor/upload-image/index.tsx











var useForm = es_form["a" /* default */].useForm;
var upload_image_style = {
  width: 280,
  marginRight: 10
};
var upload_image_formItemLayout = {
  labelCol: {
    span: 5
  },
  wrapperCol: {
    span: 19
  }
};
/* harmony default export */ var markdown_editor_upload_image = (function (_ref) {
  var callback = _ref.callback,
      onCancel = _ref.onCancel;

  var _useForm = useForm(),
      _useForm2 = Object(slicedToArray["a" /* default */])(_useForm, 1),
      form = _useForm2[0];

  function onSubmit(values) {
    callback(values);
  }

  function onAddUrl(data, file) {
    form.setFieldsValue({
      src: "/api/attachments/".concat(data.id),
      type: file.type
    });
  }

  function onFileChange(e) {
    var file = e.target.files[0];
    uploadImage(file, onAddUrl);
  }

  return /*#__PURE__*/external_window_React_default.a.createElement(es_form["a" /* default */], Object(esm_extends["a" /* default */])({
    form: form
  }, upload_image_formItemLayout, {
    className: "upload-image-panel",
    onFinish: onSubmit
  }), /*#__PURE__*/external_window_React_default.a.createElement(es_form["a" /* default */].Item, {
    label: "\u56FE\u7247\u5730\u5740",
    required: true
  }, /*#__PURE__*/external_window_React_default.a.createElement("div", {
    className: "flex-container"
  }, /*#__PURE__*/external_window_React_default.a.createElement(es_form["a" /* default */].Item, {
    noStyle: true,
    name: "src",
    rules: [{
      required: true,
      message: '请输入图片地址'
    }]
  }, /*#__PURE__*/external_window_React_default.a.createElement(input["a" /* default */], {
    style: upload_image_style
  })), /*#__PURE__*/external_window_React_default.a.createElement(UploadButton, {
    onFileChange: onFileChange
  }))), /*#__PURE__*/external_window_React_default.a.createElement(es_form["a" /* default */].Item, {
    label: "\u56FE\u7247\u63CF\u8FF0",
    name: "alt",
    rules: [{
      required: true,
      message: '请输入图片描述'
    }]
  }, /*#__PURE__*/external_window_React_default.a.createElement(input["a" /* default */], {
    style: {
      width: 264
    }
  })), /*#__PURE__*/external_window_React_default.a.createElement(es_form["a" /* default */].Item, {
    style: {
      textAlign: "right"
    }
  }, /*#__PURE__*/external_window_React_default.a.createElement(es_button["a" /* default */], {
    type: "primary",
    htmlType: "submit",
    style: {
      marginRight: 10
    }
  }, "\u786E\u5B9A"), /*#__PURE__*/external_window_React_default.a.createElement(es_button["a" /* default */], {
    type: "ghost",
    onClick: onCancel
  }, "\u53D6\u6D88")));
});

function UploadButton(_ref2) {
  var onFileChange = _ref2.onFileChange;
  return /*#__PURE__*/external_window_React_default.a.createElement("a", {
    className: "upload-button"
  }, "\u672C\u5730\u4E0A\u4F20", /*#__PURE__*/external_window_React_default.a.createElement("input", {
    type: "file",
    onChange: onFileChange
  }));
}

function uploadImage(file, callback) {
  if (!file) {
    throw new String('没有文件');
    return;
  }

  var formData = new FormData();
  formData.append('editormd-image-file', file);
  formData.append('file_param_name', 'editormd-image-file');
  formData.append('byxhr', 'true');
  var xhr = new window.XMLHttpRequest();
  xhr.withCredentials = true;
  xhr.addEventListener('load', function (response) {
    callback(JSON.parse(response.target.responseText), file);
  }, false);
  xhr.addEventListener('error', function (error) {
    console.error(error);
  }, false);
  xhr.open('POST', "".concat(util["a" /* apiPref */], "/api/attachments.json"));
  xhr.send(formData);
}
// EXTERNAL MODULE: ./node_modules/antd/es/input-number/style/index.js
var input_number_style = __webpack_require__("giR+");

// EXTERNAL MODULE: ./node_modules/antd/es/input-number/index.js
var input_number = __webpack_require__("fyUT");

// EXTERNAL MODULE: ./node_modules/antd/es/radio/style/index.js
var radio_style = __webpack_require__("7Kak");

// EXTERNAL MODULE: ./node_modules/antd/es/radio/index.js + 4 modules
var es_radio = __webpack_require__("9yH6");

// CONCATENATED MODULE: ./src/components/markdown-editor/add-table-panel/index.tsx









var RadioGroup = es_radio["a" /* default */].Group;
var add_table_panel_style = {
  margin: '0 8px'
};
/* harmony default export */ var add_table_panel = (function (_ref) {
  var callback = _ref.callback,
      onCancel = _ref.onCancel;

  function onSubmit(values) {
    callback(values);
  }

  return /*#__PURE__*/external_window_React_default.a.createElement(es_form["a" /* default */], {
    className: "add-table-panel",
    initialValues: {
      row: 3,
      col: 2,
      align: 'default'
    },
    onFinish: onSubmit
  }, /*#__PURE__*/external_window_React_default.a.createElement("div", {
    className: "flex-container"
  }, /*#__PURE__*/external_window_React_default.a.createElement("span", {
    style: add_table_panel_style
  }, "\u5355\u5143\u683C\u6570\uFF1A"), /*#__PURE__*/external_window_React_default.a.createElement("span", {
    style: add_table_panel_style
  }, "\u884C\u6570"), /*#__PURE__*/external_window_React_default.a.createElement(es_form["a" /* default */].Item, {
    name: "row",
    rules: [{
      required: true,
      message: '请输入行数'
    }]
  }, /*#__PURE__*/external_window_React_default.a.createElement(input_number["a" /* default */], null)), /*#__PURE__*/external_window_React_default.a.createElement("span", {
    style: add_table_panel_style
  }, "\u5217\u6570"), /*#__PURE__*/external_window_React_default.a.createElement(es_form["a" /* default */].Item, {
    name: "col",
    rules: [{
      required: true,
      message: '请输入列数'
    }]
  }, /*#__PURE__*/external_window_React_default.a.createElement(input_number["a" /* default */], null))), /*#__PURE__*/external_window_React_default.a.createElement("div", {
    className: "flex-container",
    style: {
      marginTop: 12
    }
  }, /*#__PURE__*/external_window_React_default.a.createElement("span", {
    style: add_table_panel_style
  }, "\u5BF9\u9F50\u65B9\u5F0F\uFF1A"), /*#__PURE__*/external_window_React_default.a.createElement(es_form["a" /* default */].Item, {
    name: "align"
  }, /*#__PURE__*/external_window_React_default.a.createElement(RadioGroup, null, /*#__PURE__*/external_window_React_default.a.createElement(es_radio["a" /* default */], {
    value: "default"
  }, /*#__PURE__*/external_window_React_default.a.createElement("i", {
    className: "fa fa-align-justify"
  })), /*#__PURE__*/external_window_React_default.a.createElement(es_radio["a" /* default */], {
    value: "left"
  }, /*#__PURE__*/external_window_React_default.a.createElement("i", {
    className: "fa fa-align-left"
  })), /*#__PURE__*/external_window_React_default.a.createElement(es_radio["a" /* default */], {
    value: "center"
  }, /*#__PURE__*/external_window_React_default.a.createElement("i", {
    className: "fa fa-align-center"
  })), /*#__PURE__*/external_window_React_default.a.createElement(es_radio["a" /* default */], {
    value: "right"
  }, /*#__PURE__*/external_window_React_default.a.createElement("i", {
    className: "fa fa-align-right"
  }))))), /*#__PURE__*/external_window_React_default.a.createElement("div", {
    className: "flex-container flex-end"
  }, /*#__PURE__*/external_window_React_default.a.createElement(es_button["a" /* default */], {
    type: "primary",
    htmlType: "submit",
    style: {
      marginRight: 10
    }
  }, "\u786E\u5B9A"), /*#__PURE__*/external_window_React_default.a.createElement(es_button["a" /* default */], {
    type: "ghost",
    onClick: onCancel
  }, "\u53D6\u6D88")));
});
// EXTERNAL MODULE: ./src/utils/env.ts + 1 modules
var env = __webpack_require__("m3rI");

// CONCATENATED MODULE: ./src/components/markdown-editor/constant.ts
var LINK = 'link';
var UPLOAD_IMAGE = 'upload-image';
var CODE_BLOCK = 'code-block';
var ADD_TABLE = 'add-table';
var HRLINE = '------------';
var ALIGNSIGN = {
  default: HRLINE,
  left: ":".concat(HRLINE),
  center: ":".concat(HRLINE, ":"),
  right: "".concat(HRLINE, ":")
};
// EXTERNAL MODULE: ./src/components/useInterval.tsx
var useInterval = __webpack_require__("9VGf");

// CONCATENATED MODULE: ./src/components/markdown-editor/index.tsx








var _DEFAULTKEYMAP, _TitleDesc;























function noop() {}

var pending = 0;
var StorageTimeTicket = 10000;
var NULL_CH = '▁';
var TEMP1 = '\n**模板标题**\n模板正文内容，可输入文本内容和粘贴图片等操作'; //课程须知模板

function processSize(size) {
  return !/^\d+$/.test(size) ? size : "".concat(size, "px");
}

var isMac = navigator.platform.toUpperCase().indexOf('MAC') >= 0;
var key = isMac ? 'Cmd' : 'Ctrl';
var DEFAULTKEYMAP = (_DEFAULTKEYMAP = {}, Object(defineProperty["a" /* default */])(_DEFAULTKEYMAP, key + '-B', 'bold'), Object(defineProperty["a" /* default */])(_DEFAULTKEYMAP, key + '-I', 'italic'), _DEFAULTKEYMAP);
var TitleDesc = (_TitleDesc = {}, Object(defineProperty["a" /* default */])(_TitleDesc, LINK, '添加链接'), Object(defineProperty["a" /* default */])(_TitleDesc, CODE_BLOCK, '添加代码块'), Object(defineProperty["a" /* default */])(_TitleDesc, UPLOAD_IMAGE, '添加图片'), Object(defineProperty["a" /* default */])(_TitleDesc, ADD_TABLE, '添加表格'), _TitleDesc); //https://codemirror.net/demo
//The height can be set through CSS (by giving the .CodeMirror class a height property), or by calling the cm's setSize method.

/* harmony default export */ var components_markdown_editor = __webpack_exports__["a"] = (function (_ref) {
  var _ref$defaultValue = _ref.defaultValue,
      defaultValue = _ref$defaultValue === void 0 ? '' : _ref$defaultValue,
      onChange = _ref.onChange,
      _ref$width = _ref.width,
      width = _ref$width === void 0 ? '100%' : _ref$width,
      _ref$height = _ref.height,
      height = _ref$height === void 0 ? 400 : _ref$height,
      _ref$miniToolbar = _ref.miniToolbar,
      miniToolbar = _ref$miniToolbar === void 0 ? false : _ref$miniToolbar,
      _ref$isFocus = _ref.isFocus,
      isFocus = _ref$isFocus === void 0 ? false : _ref$isFocus,
      watch = _ref.watch,
      insertTemp = _ref.insertTemp,
      _ref$mode = _ref.mode,
      mode = _ref$mode === void 0 ? "markdown" : _ref$mode,
      _ref$id = _ref.id,
      id = _ref$id === void 0 ? 'markdown-editor-id' : _ref$id,
      _ref$showResizeBar = _ref.showResizeBar,
      showResizeBar = _ref$showResizeBar === void 0 ? false : _ref$showResizeBar,
      _ref$noStorage = _ref.noStorage,
      noStorage = _ref$noStorage === void 0 ? false : _ref$noStorage,
      _ref$showNullButton = _ref.showNullButton,
      showNullButton = _ref$showNullButton === void 0 ? false : _ref$showNullButton,
      _ref$hidetoolBar = _ref.hidetoolBar,
      hidetoolBar = _ref$hidetoolBar === void 0 ? false : _ref$hidetoolBar,
      _ref$fullScreen = _ref.fullScreen,
      fullScreen = _ref$fullScreen === void 0 ? false : _ref$fullScreen,
      onBlur = _ref.onBlur,
      onCMBeforeChange = _ref.onCMBeforeChange,
      onFullScreen = _ref.onFullScreen,
      _ref$className = _ref.className,
      className = _ref$className === void 0 ? '' : _ref$className,
      _ref$disablePaste = _ref.disablePaste,
      disablePaste = _ref$disablePaste === void 0 ? false : _ref$disablePaste,
      _ref$placeholder = _ref.placeholder,
      placeholder = _ref$placeholder === void 0 ? '' : _ref$placeholder,
      _ref$values = _ref.values,
      values = _ref$values === void 0 ? '' : _ref$values;

  var _useState = Object(external_window_React_["useState"])(null),
      _useState2 = Object(slicedToArray["a" /* default */])(_useState, 2),
      cm = _useState2[0],
      setCm = _useState2[1];

  var _useState3 = Object(external_window_React_["useState"])(defaultValue),
      _useState4 = Object(slicedToArray["a" /* default */])(_useState3, 2),
      value = _useState4[0],
      setValue = _useState4[1];

  var _useState5 = Object(external_window_React_["useState"])(watch),
      _useState6 = Object(slicedToArray["a" /* default */])(_useState5, 2),
      preview = _useState6[0],
      setPreview = _useState6[1];

  var _useState7 = Object(external_window_React_["useState"])(fullScreen),
      _useState8 = Object(slicedToArray["a" /* default */])(_useState7, 2),
      isFull = _useState8[0],
      setIsFull = _useState8[1];

  var _useState9 = Object(external_window_React_["useState"])(''),
      _useState10 = Object(slicedToArray["a" /* default */])(_useState9, 2),
      action = _useState10[0],
      setAction = _useState10[1];

  var _useState11 = Object(external_window_React_["useState"])(0),
      _useState12 = Object(slicedToArray["a" /* default */])(_useState11, 2),
      lastedUpdateTime = _useState12[0],
      setLastedUpdateTime = _useState12[1];

  var _useState13 = Object(external_window_React_["useState"])(height),
      _useState14 = Object(slicedToArray["a" /* default */])(_useState13, 2),
      h = _useState14[0],
      setH = _useState14[1];

  var _useState15 = Object(external_window_React_["useState"])(false),
      _useState16 = Object(slicedToArray["a" /* default */])(_useState15, 2),
      tip = _useState16[0],
      setTip = _useState16[1];

  var cmEl = Object(external_window_React_["useRef"])();
  var containerEl = Object(external_window_React_["useRef"])();
  var resizeBarEl = Object(external_window_React_["useRef"])();
  var previewEl = Object(external_window_React_["useRef"])(); // useEffect(() => {
  //   setValue(defaultValue)
  //   cm?.setValue(defaultValue)
  // },[])

  Object(external_window_React_["useEffect"])(function () {
    setValue(values);
    cm === null || cm === void 0 ? void 0 : cm.setValue(values);
  }, [values]);
  Object(external_window_React_["useEffect"])(function () {
    onFullScreen === null || onFullScreen === void 0 ? void 0 : onFullScreen(isFull);
  }, [isFull]);
  Object(external_window_React_["useEffect"])(function () {
    if (cmEl.current) {
      var instance = codemirror_default.a.fromTextArea(cmEl.current, {
        mode: mode,
        // inputStyle: 'contenteditable',
        lineNumbers: miniToolbar ? false : true,
        lineWrapping: true,
        value: defaultValue,
        autoCloseTags: true,
        autoCloseBrackets: true
      });
      isFocus && instance.focus();

      function onPaste(_, e) {
        if (disablePaste) {
          e.preventDefault();
          return;
        }

        var clipboardData = e.clipboardData;

        if (clipboardData) {
          var types = clipboardData.types.toString();
          var items = clipboardData.items;
          var officeSix = ["pptm", "pptx", "ppt", "pot", "pps", "ppa", "potx", "ppsx", "ppam", "pptm", "potm", "ppsm", "doc", "docx", "dot", "dotx", "docm", "dotm", "xls", "xlsx", "csv", "xlt", "xla", "xltx", "xlsm", "xltm", "xlam", "xlsb"];

          if (types === 'Files' || clipboardData.types.indexOf("Files") > -1) {
            e.preventDefault();
            if (mode == "stex") return;

            try {
              var _items$;

              var item = items[1];

              if (((_items$ = items[0]) === null || _items$ === void 0 ? void 0 : _items$.kind) === 'file') {
                item = items[0];
              }

              var file = item.getAsFile();
              var fileSix = file.name.split(".").pop(); // console.log("item:", item, file, item?.type?.match(/^video\//i))

              uploadImage(file, function (data) {
                if (data.id) {
                  var _file$type, _file$type2, _file$type3;

                  if ((file === null || file === void 0 ? void 0 : (_file$type = file.type) === null || _file$type === void 0 ? void 0 : _file$type.indexOf("image")) > -1) {
                    instance.replaceSelection("![,](/api/attachments/".concat(data.id, "?type=").concat(data.content_type, ")"));
                  } else if ((file === null || file === void 0 ? void 0 : (_file$type2 = file.type) === null || _file$type2 === void 0 ? void 0 : _file$type2.indexOf("video")) > -1) {
                    instance.replaceSelection("<video width=\"100%\" controls src=\"".concat(env["a" /* default */].API_SERVER, "/api/attachments/").concat(data.id, "\"></video>"));
                  } else if ((file === null || file === void 0 ? void 0 : (_file$type3 = file.type) === null || _file$type3 === void 0 ? void 0 : _file$type3.indexOf("pdf")) > -1) {
                    instance.replaceSelection("<a href=\"".concat(env["a" /* default */].API_SERVER, "/api/attachments/").concat(data.id, "?type=").concat(file.type, "&disposition=inline\" target=\"_blank\">").concat(file.name, "</a>"));
                  } else if (officeSix.includes(fileSix)) {
                    instance.replaceSelection("<a href=\"".concat(env["a" /* default */].API_SERVER, "/api/attachments/").concat(data.id, "?type=office&disposition=inline\" target=\"_blank\">").concat(file.name, "</a>"));
                  } else {
                    instance.replaceSelection("[".concat(file.name, "](").concat(env["a" /* default */].API_SERVER, "/api/attachments/").concat(data.id, "?type=").concat(data.content_type, ")"));
                  }
                } else {
                  if ((data === null || data === void 0 ? void 0 : data.status) === 401) document.location.href = '/user/login';
                }
              });
            } catch (e) {
              message["b" /* default */].warn("请使用chrome浏览器粘贴");
            }

            return true;
          } else {
            //toMarkdown ?
            // let html = clipboardData.getData('text/html')
            return true;
          }
        }

        return true;
      }

      instance.on('paste', onPaste);
      setCm(instance);
      return function () {
        instance.off('paste', onPaste);
      };
    }
  }, []);
  var resizeEditorBodyHeight = Object(external_window_React_["useCallback"])(function () {
    if (containerEl.current) {
      try {// let toolH = containerEl.current.getElementsByClassName('markdown-toolbar-container')[0].offsetHeight
        // let mdBody = containerEl.current.getElementsByClassName('markdown-editor-body')[0]
        // if (!isFull) {
        //   mdBody.style.height = `${h - toolH}px`
        // } else {
        //   mdBody.style.height = `calc(100vh - ${toolH}px)`
        // }
      } catch (error) {
        console.log(error, '---- to set md editor body height');
      }
    }
  }, [h, containerEl, isFull]);
  Object(external_window_React_["useEffect"])(function () {
    function onLayout() {
      var ro = new ResizeObserver_es["default"](function (entries) {
        var _iterator = Object(createForOfIteratorHelper["a" /* default */])(entries),
            _step;

        try {
          for (_iterator.s(); !(_step = _iterator.n()).done;) {
            var entry = _step.value;

            if (entry.target.offsetHeight > 0 || entry.target.offsetWidth > 0) {
              resizeEditorBodyHeight();
              cm.setSize('100%', '100%');
              cm.refresh();
            }
          }
        } catch (err) {
          _iterator.e(err);
        } finally {
          _iterator.f();
        }
      });
      ro.observe(cmEl.current.parentElement);
      return ro;
    }

    if (cm) {
      var ro = onLayout();
      return function () {
        ro.unobserve(cmEl.current.parentElement);
      };
    }
  }, [cm, resizeEditorBodyHeight]); //keymap

  Object(external_window_React_["useEffect"])(function () {
    if (cm) {
      var keymap = [];

      var _loop = function _loop() {
        var _ref2 = _Object$entries[_i];
        _ref3 = Object(slicedToArray["a" /* default */])(_ref2, 2);
        var k = _ref3[0];
        var value = _ref3[1];

        var map = Object(defineProperty["a" /* default */])({}, k, function () {
          onActionCallback(value);
        });

        keymap.push(map);
        cm.addKeyMap(map);
      };

      for (var _i = 0, _Object$entries = Object.entries(DEFAULTKEYMAP); _i < _Object$entries.length; _i++) {
        var _ref3;

        _loop();
      }

      return function () {
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    setTip(false);
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/***/ }),

/***/ "SJMd":
/*!****************************************************!*\
  !*** ./node_modules/code-prettify/src/prettify.js ***!
  \****************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports) {

/**
 * @license
 * Copyright (C) 2006 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * @fileoverview
 * some functions for browser-side pretty printing of code contained in html.
 *
 * <p>
 * For a fairly comprehensive set of languages see the
 * <a href="https://github.com/google/code-prettify#for-which-languages-does-it-work">README</a>
 * file that came with this source.  At a minimum, the lexer should work on a
 * number of languages including C and friends, Java, Python, Bash, SQL, HTML,
 * XML, CSS, Javascript, and Makefiles.  It works passably on Ruby, PHP and Awk
 * and a subset of Perl, but, because of commenting conventions, doesn't work on
 * Smalltalk, Lisp-like, or CAML-like languages without an explicit lang class.
 * <p>
 * Usage: <ol>
 * <li> include this source file in an html page via
 *   {@code <script type="text/javascript" src="/path/to/prettify.js"></script>}
 * <li> define style rules.  See the example page for examples.
 * <li> mark the {@code <pre>} and {@code <code>} tags in your source with
 *    {@code class=prettyprint.}
 *    You can also use the (html deprecated) {@code <xmp>} tag, but the pretty
 *    printer needs to do more substantial DOM manipulations to support that, so
 *    some css styles may not be preserved.
 * </ol>
 * That's it.  I wanted to keep the API as simple as possible, so there's no
 * need to specify which language the code is in, but if you wish, you can add
 * another class to the {@code <pre>} or {@code <code>} element to specify the
 * language, as in {@code <pre class="prettyprint lang-java">}.  Any class that
 * starts with "lang-" followed by a file extension, specifies the file type.
 * See the "lang-*.js" files in this directory for code that implements
 * per-language file handlers.
 * <p>
 * Change log:<br>
 * cbeust, 2006/08/22
 * <blockquote>
 *   Java annotations (start with "@") are now captured as literals ("lit")
 * </blockquote>
 * @requires console
 */

// JSLint declarations
/*global console, document, navigator, setTimeout, window, define */


/**
* @typedef {!Array.<number|string>}
* Alternating indices and the decorations that should be inserted there.
* The indices are monotonically increasing.
*/
var DecorationsT;

/**
* @typedef {!{
*   sourceNode: !Element,
*   pre: !(number|boolean),
*   langExtension: ?string,
*   numberLines: ?(number|boolean),
*   sourceCode: ?string,
*   spans: ?(Array.<number|Node>),
*   basePos: ?number,
*   decorations: ?DecorationsT
* }}
* <dl>
*  <dt>sourceNode<dd>the element containing the source
*  <dt>sourceCode<dd>source as plain text
*  <dt>pre<dd>truthy if white-space in text nodes
*     should be considered significant.
*  <dt>spans<dd> alternating span start indices into source
*     and the text node or element (e.g. {@code <BR>}) corresponding to that
*     span.
*  <dt>decorations<dd>an array of style classes preceded
*     by the position at which they start in job.sourceCode in order
*  <dt>basePos<dd>integer position of this.sourceCode in the larger chunk of
*     source.
* </dl>
*/
var JobT;

/**
* @typedef {!{
*   sourceCode: string,
*   spans: !(Array.<number|Node>)
* }}
* <dl>
*  <dt>sourceCode<dd>source as plain text
*  <dt>spans<dd> alternating span start indices into source
*     and the text node or element (e.g. {@code <BR>}) corresponding to that
*     span.
* </dl>
*/
var SourceSpansT;

/** @define {boolean} */
var IN_GLOBAL_SCOPE = false;

var HACK_TO_FIX_JS_INCLUDE_PL;

/**
 * {@type !{
 *   'createSimpleLexer': function (Array, Array): (function (JobT)),
 *   'registerLangHandler': function (function (JobT), Array.<string>),
 *   'PR_ATTRIB_NAME': string,
 *   'PR_ATTRIB_NAME': string,
 *   'PR_ATTRIB_VALUE': string,
 *   'PR_COMMENT': string,
 *   'PR_DECLARATION': string,
 *   'PR_KEYWORD': string,
 *   'PR_LITERAL': string,
 *   'PR_NOCODE': string,
 *   'PR_PLAIN': string,
 *   'PR_PUNCTUATION': string,
 *   'PR_SOURCE': string,
 *   'PR_STRING': string,
 *   'PR_TAG': string,
 *   'PR_TYPE': string,
 *   'prettyPrintOne': function (string, string, number|boolean),
 *   'prettyPrint': function (?function, ?(HTMLElement|HTMLDocument))
 * }}
 * @const
 */
var PR;

/**
 * Split {@code prettyPrint} into multiple timeouts so as not to interfere with
 * UI events.
 * If set to {@code false}, {@code prettyPrint()} is synchronous.
 */
window['PR_SHOULD_USE_CONTINUATION'] = true;

/**
 * Pretty print a chunk of code.
 * @param {string} sourceCodeHtml The HTML to pretty print.
 * @param {string} opt_langExtension The language name to use.
 *     Typically, a filename extension like 'cpp' or 'java'.
 * @param {number|boolean} opt_numberLines True to number lines,
 *     or the 1-indexed number of the first line in sourceCodeHtml.
 * @return {string} code as html, but prettier
 */
var prettyPrintOne;
/**
 * Find all the {@code <pre>} and {@code <code>} tags in the DOM with
 * {@code class=prettyprint} and prettify them.
 *
 * @param {Function} opt_whenDone called when prettifying is done.
 * @param {HTMLElement|HTMLDocument} opt_root an element or document
 *   containing all the elements to pretty print.
 *   Defaults to {@code document.body}.
 */
var prettyPrint;


(function () {
  var win = window;
  // Keyword lists for various languages.
  // We use things that coerce to strings to make them compact when minified
  // and to defeat aggressive optimizers that fold large string constants.
  var FLOW_CONTROL_KEYWORDS = ["break,continue,do,else,for,if,return,while"];
  var C_KEYWORDS = [FLOW_CONTROL_KEYWORDS,"auto,case,char,const,default," +
      "double,enum,extern,float,goto,inline,int,long,register,restrict,short,signed," +
      "sizeof,static,struct,switch,typedef,union,unsigned,void,volatile"];
  var COMMON_KEYWORDS = [C_KEYWORDS,"catch,class,delete,false,import," +
      "new,operator,private,protected,public,this,throw,true,try,typeof"];
  var CPP_KEYWORDS = [COMMON_KEYWORDS,"alignas,alignof,align_union,asm,axiom,bool," +
      "concept,concept_map,const_cast,constexpr,decltype,delegate," +
      "dynamic_cast,explicit,export,friend,generic,late_check," +
      "mutable,namespace,noexcept,noreturn,nullptr,property,reinterpret_cast,static_assert," +
      "static_cast,template,typeid,typename,using,virtual,where"];
  var JAVA_KEYWORDS = [COMMON_KEYWORDS,
      "abstract,assert,boolean,byte,extends,finally,final,implements,import," +
      "instanceof,interface,null,native,package,strictfp,super,synchronized," +
      "throws,transient"];
  var CSHARP_KEYWORDS = [COMMON_KEYWORDS,
      "abstract,add,alias,as,ascending,async,await,base,bool,by,byte,checked,decimal,delegate,descending," +
      "dynamic,event,finally,fixed,foreach,from,get,global,group,implicit,in,interface," +
      "internal,into,is,join,let,lock,null,object,out,override,orderby,params," +
      "partial,readonly,ref,remove,sbyte,sealed,select,set,stackalloc,string,select,uint,ulong," +
      "unchecked,unsafe,ushort,value,var,virtual,where,yield"];
  var COFFEE_KEYWORDS = "all,and,by,catch,class,else,extends,false,finally," +
      "for,if,in,is,isnt,loop,new,no,not,null,of,off,on,or,return,super,then," +
      "throw,true,try,unless,until,when,while,yes";
  var JSCRIPT_KEYWORDS = [COMMON_KEYWORDS,
      "abstract,async,await,constructor,debugger,enum,eval,export,function," +
      "get,implements,instanceof,interface,let,null,set,undefined,var,with," +
      "yield,Infinity,NaN"];
  var PERL_KEYWORDS = "caller,delete,die,do,dump,elsif,eval,exit,foreach,for," +
      "goto,if,import,last,local,my,next,no,our,print,package,redo,require," +
      "sub,undef,unless,until,use,wantarray,while,BEGIN,END";
  var PYTHON_KEYWORDS = [FLOW_CONTROL_KEYWORDS, "and,as,assert,class,def,del," +
      "elif,except,exec,finally,from,global,import,in,is,lambda," +
      "nonlocal,not,or,pass,print,raise,try,with,yield," +
      "False,True,None"];
  var RUBY_KEYWORDS = [FLOW_CONTROL_KEYWORDS, "alias,and,begin,case,class," +
      "def,defined,elsif,end,ensure,false,in,module,next,nil,not,or,redo," +
      "rescue,retry,self,super,then,true,undef,unless,until,when,yield," +
      "BEGIN,END"];
  var SH_KEYWORDS = [FLOW_CONTROL_KEYWORDS, "case,done,elif,esac,eval,fi," +
      "function,in,local,set,then,until"];
  var ALL_KEYWORDS = [
      CPP_KEYWORDS, CSHARP_KEYWORDS, JAVA_KEYWORDS, JSCRIPT_KEYWORDS,
      PERL_KEYWORDS, PYTHON_KEYWORDS, RUBY_KEYWORDS, SH_KEYWORDS];
  var C_TYPES = /^(DIR|FILE|array|vector|(de|priority_)?queue|(forward_)?list|stack|(const_)?(reverse_)?iterator|(unordered_)?(multi)?(set|map)|bitset|u?(int|float)\d*)\b/;

  // token style names.  correspond to css classes
  /**
   * token style for a string literal
   * @const
   */
  var PR_STRING = 'str';
  /**
   * token style for a keyword
   * @const
   */
  var PR_KEYWORD = 'kwd';
  /**
   * token style for a comment
   * @const
   */
  var PR_COMMENT = 'com';
  /**
   * token style for a type
   * @const
   */
  var PR_TYPE = 'typ';
  /**
   * token style for a literal value.  e.g. 1, null, true.
   * @const
   */
  var PR_LITERAL = 'lit';
  /**
   * token style for a punctuation string.
   * @const
   */
  var PR_PUNCTUATION = 'pun';
  /**
   * token style for plain text.
   * @const
   */
  var PR_PLAIN = 'pln';

  /**
   * token style for an sgml tag.
   * @const
   */
  var PR_TAG = 'tag';
  /**
   * token style for a markup declaration such as a DOCTYPE.
   * @const
   */
  var PR_DECLARATION = 'dec';
  /**
   * token style for embedded source.
   * @const
   */
  var PR_SOURCE = 'src';
  /**
   * token style for an sgml attribute name.
   * @const
   */
  var PR_ATTRIB_NAME = 'atn';
  /**
   * token style for an sgml attribute value.
   * @const
   */
  var PR_ATTRIB_VALUE = 'atv';

  /**
   * A class that indicates a section of markup that is not code, e.g. to allow
   * embedding of line numbers within code listings.
   * @const
   */
  var PR_NOCODE = 'nocode';

  
  
  /**
   * A set of tokens that can precede a regular expression literal in
   * javascript
   * http://web.archive.org/web/20070717142515/http://www.mozilla.org/js/language/js20/rationale/syntax.html
   * has the full list, but I've removed ones that might be problematic when
   * seen in languages that don't support regular expression literals.
   *
   * <p>Specifically, I've removed any keywords that can't precede a regexp
   * literal in a syntactically legal javascript program, and I've removed the
   * "in" keyword since it's not a keyword in many languages, and might be used
   * as a count of inches.
   *
   * <p>The link above does not accurately describe EcmaScript rules since
   * it fails to distinguish between (a=++/b/i) and (a++/b/i) but it works
   * very well in practice.
   *
   * @private
   * @const
   */
  var REGEXP_PRECEDER_PATTERN = '(?:^^\\.?|[+-]|[!=]=?=?|\\#|%=?|&&?=?|\\(|\\*=?|[+\\-]=|->|\\/=?|::?|<<?=?|>>?>?=?|,|;|\\?|@|\\[|~|{|\\^\\^?=?|\\|\\|?=?|break|case|continue|delete|do|else|finally|instanceof|return|throw|try|typeof)\\s*';
  
  // CAVEAT: this does not properly handle the case where a regular
  // expression immediately follows another since a regular expression may
  // have flags for case-sensitivity and the like.  Having regexp tokens
  // adjacent is not valid in any language I'm aware of, so I'm punting.
  // TODO: maybe style special characters inside a regexp as punctuation.

  /**
   * Given a group of {@link RegExp}s, returns a {@code RegExp} that globally
   * matches the union of the sets of strings matched by the input RegExp.
   * Since it matches globally, if the input strings have a start-of-input
   * anchor (/^.../), it is ignored for the purposes of unioning.
   * @param {Array.<RegExp>} regexs non multiline, non-global regexs.
   * @return {RegExp} a global regex.
   */
  function combinePrefixPatterns(regexs) {
    var capturedGroupIndex = 0;
  
    var needToFoldCase = false;
    var ignoreCase = false;
    for (var i = 0, n = regexs.length; i < n; ++i) {
      var regex = regexs[i];
      if (regex.ignoreCase) {
        ignoreCase = true;
      } else if (/[a-z]/i.test(regex.source.replace(
                     /\\u[0-9a-f]{4}|\\x[0-9a-f]{2}|\\[^ux]/gi, ''))) {
        needToFoldCase = true;
        ignoreCase = false;
        break;
      }
    }
  
    var escapeCharToCodeUnit = {
      'b': 8,
      't': 9,
      'n': 0xa,
      'v': 0xb,
      'f': 0xc,
      'r': 0xd
    };
  
    function decodeEscape(charsetPart) {
      var cc0 = charsetPart.charCodeAt(0);
      if (cc0 !== 92 /* \\ */) {
        return cc0;
      }
      var c1 = charsetPart.charAt(1);
      cc0 = escapeCharToCodeUnit[c1];
      if (cc0) {
        return cc0;
      } else if ('0' <= c1 && c1 <= '7') {
        return parseInt(charsetPart.substring(1), 8);
      } else if (c1 === 'u' || c1 === 'x') {
        return parseInt(charsetPart.substring(2), 16);
      } else {
        return charsetPart.charCodeAt(1);
      }
    }
  
    function encodeEscape(charCode) {
      if (charCode < 0x20) {
        return (charCode < 0x10 ? '\\x0' : '\\x') + charCode.toString(16);
      }
      var ch = String.fromCharCode(charCode);
      return (ch === '\\' || ch === '-' || ch === ']' || ch === '^')
          ? "\\" + ch : ch;
    }
  
    function caseFoldCharset(charSet) {
      var charsetParts = charSet.substring(1, charSet.length - 1).match(
          new RegExp(
              '\\\\u[0-9A-Fa-f]{4}'
              + '|\\\\x[0-9A-Fa-f]{2}'
              + '|\\\\[0-3][0-7]{0,2}'
              + '|\\\\[0-7]{1,2}'
              + '|\\\\[\\s\\S]'
              + '|-'
              + '|[^-\\\\]',
              'g'));
      var ranges = [];
      var inverse = charsetParts[0] === '^';
  
      var out = ['['];
      if (inverse) { out.push('^'); }
  
      for (var i = inverse ? 1 : 0, n = charsetParts.length; i < n; ++i) {
        var p = charsetParts[i];
        if (/\\[bdsw]/i.test(p)) {  // Don't muck with named groups.
          out.push(p);
        } else {
          var start = decodeEscape(p);
          var end;
          if (i + 2 < n && '-' === charsetParts[i + 1]) {
            end = decodeEscape(charsetParts[i + 2]);
            i += 2;
          } else {
            end = start;
          }
          ranges.push([start, end]);
          // If the range might intersect letters, then expand it.
          // This case handling is too simplistic.
          // It does not deal with non-latin case folding.
          // It works for latin source code identifiers though.
          if (!(end < 65 || start > 122)) {
            if (!(end < 65 || start > 90)) {
              ranges.push([Math.max(65, start) | 32, Math.min(end, 90) | 32]);
            }
            if (!(end < 97 || start > 122)) {
              ranges.push([Math.max(97, start) & ~32, Math.min(end, 122) & ~32]);
            }
          }
        }
      }
  
      // [[1, 10], [3, 4], [8, 12], [14, 14], [16, 16], [17, 17]]
      // -> [[1, 12], [14, 14], [16, 17]]
      ranges.sort(function (a, b) { return (a[0] - b[0]) || (b[1]  - a[1]); });
      var consolidatedRanges = [];
      var lastRange = [];
      for (var i = 0; i < ranges.length; ++i) {
        var range = ranges[i];
        if (range[0] <= lastRange[1] + 1) {
          lastRange[1] = Math.max(lastRange[1], range[1]);
        } else {
          consolidatedRanges.push(lastRange = range);
        }
      }
  
      for (var i = 0; i < consolidatedRanges.length; ++i) {
        var range = consolidatedRanges[i];
        out.push(encodeEscape(range[0]));
        if (range[1] > range[0]) {
          if (range[1] + 1 > range[0]) { out.push('-'); }
          out.push(encodeEscape(range[1]));
        }
      }
      out.push(']');
      return out.join('');
    }
  
    function allowAnywhereFoldCaseAndRenumberGroups(regex) {
      // Split into character sets, escape sequences, punctuation strings
      // like ('(', '(?:', ')', '^'), and runs of characters that do not
      // include any of the above.
      var parts = regex.source.match(
          new RegExp(
              '(?:'
              + '\\[(?:[^\\x5C\\x5D]|\\\\[\\s\\S])*\\]'  // a character set
              + '|\\\\u[A-Fa-f0-9]{4}'  // a unicode escape
              + '|\\\\x[A-Fa-f0-9]{2}'  // a hex escape
              + '|\\\\[0-9]+'  // a back-reference or octal escape
              + '|\\\\[^ux0-9]'  // other escape sequence
              + '|\\(\\?[:!=]'  // start of a non-capturing group
              + '|[\\(\\)\\^]'  // start/end of a group, or line start
              + '|[^\\x5B\\x5C\\(\\)\\^]+'  // run of other characters
              + ')',
              'g'));
      var n = parts.length;
  
      // Maps captured group numbers to the number they will occupy in
      // the output or to -1 if that has not been determined, or to
      // undefined if they need not be capturing in the output.
      var capturedGroups = [];
  
      // Walk over and identify back references to build the capturedGroups
      // mapping.
      for (var i = 0, groupIndex = 0; i < n; ++i) {
        var p = parts[i];
        if (p === '(') {
          // groups are 1-indexed, so max group index is count of '('
          ++groupIndex;
        } else if ('\\' === p.charAt(0)) {
          var decimalValue = +p.substring(1);
          if (decimalValue) {
            if (decimalValue <= groupIndex) {
              capturedGroups[decimalValue] = -1;
            } else {
              // Replace with an unambiguous escape sequence so that
              // an octal escape sequence does not turn into a backreference
              // to a capturing group from an earlier regex.
              parts[i] = encodeEscape(decimalValue);
            }
          }
        }
      }
  
      // Renumber groups and reduce capturing groups to non-capturing groups
      // where possible.
      for (var i = 1; i < capturedGroups.length; ++i) {
        if (-1 === capturedGroups[i]) {
          capturedGroups[i] = ++capturedGroupIndex;
        }
      }
      for (var i = 0, groupIndex = 0; i < n; ++i) {
        var p = parts[i];
        if (p === '(') {
          ++groupIndex;
          if (!capturedGroups[groupIndex]) {
            parts[i] = '(?:';
          }
        } else if ('\\' === p.charAt(0)) {
          var decimalValue = +p.substring(1);
          if (decimalValue && decimalValue <= groupIndex) {
            parts[i] = '\\' + capturedGroups[decimalValue];
          }
        }
      }
  
      // Remove any prefix anchors so that the output will match anywhere.
      // ^^ really does mean an anchored match though.
      for (var i = 0; i < n; ++i) {
        if ('^' === parts[i] && '^' !== parts[i + 1]) { parts[i] = ''; }
      }
  
      // Expand letters to groups to handle mixing of case-sensitive and
      // case-insensitive patterns if necessary.
      if (regex.ignoreCase && needToFoldCase) {
        for (var i = 0; i < n; ++i) {
          var p = parts[i];
          var ch0 = p.charAt(0);
          if (p.length >= 2 && ch0 === '[') {
            parts[i] = caseFoldCharset(p);
          } else if (ch0 !== '\\') {
            // TODO: handle letters in numeric escapes.
            parts[i] = p.replace(
                /[a-zA-Z]/g,
                function (ch) {
                  var cc = ch.charCodeAt(0);
                  return '[' + String.fromCharCode(cc & ~32, cc | 32) + ']';
                });
          }
        }
      }
  
      return parts.join('');
    }
  
    var rewritten = [];
    for (var i = 0, n = regexs.length; i < n; ++i) {
      var regex = regexs[i];
      if (regex.global || regex.multiline) { throw new Error('' + regex); }
      rewritten.push(
          '(?:' + allowAnywhereFoldCaseAndRenumberGroups(regex) + ')');
    }
  
    return new RegExp(rewritten.join('|'), ignoreCase ? 'gi' : 'g');
  }

  /**
   * Split markup into a string of source code and an array mapping ranges in
   * that string to the text nodes in which they appear.
   *
   * <p>
   * The HTML DOM structure:</p>
   * <pre>
   * (Element   "p"
   *   (Element "b"
   *     (Text  "print "))       ; #1
   *   (Text    "'Hello '")      ; #2
   *   (Element "br")            ; #3
   *   (Text    "  + 'World';")) ; #4
   * </pre>
   * <p>
   * corresponds to the HTML
   * {@code <p><b>print </b>'Hello '<br>  + 'World';</p>}.</p>
   *
   * <p>
   * It will produce the output:</p>
   * <pre>
   * {
   *   sourceCode: "print 'Hello '\n  + 'World';",
   *   //                     1          2
   *   //           012345678901234 5678901234567
   *   spans: [0, #1, 6, #2, 14, #3, 15, #4]
   * }
   * </pre>
   * <p>
   * where #1 is a reference to the {@code "print "} text node above, and so
   * on for the other text nodes.
   * </p>
   *
   * <p>
   * The {@code} spans array is an array of pairs.  Even elements are the start
   * indices of substrings, and odd elements are the text nodes (or BR elements)
   * that contain the text for those substrings.
   * Substrings continue until the next index or the end of the source.
   * </p>
   *
   * @param {Node} node an HTML DOM subtree containing source-code.
   * @param {boolean|number} isPreformatted truthy if white-space in
   *    text nodes should be considered significant.
   * @return {SourceSpansT} source code and the nodes in which they occur.
   */
  function extractSourceSpans(node, isPreformatted) {
    var nocode = /(?:^|\s)nocode(?:\s|$)/;
  
    var chunks = [];
    var length = 0;
    var spans = [];
    var k = 0;
  
    function walk(node) {
      var type = node.nodeType;
      if (type == 1) {  // Element
        if (nocode.test(node.className)) { return; }
        for (var child = node.firstChild; child; child = child.nextSibling) {
          walk(child);
        }
        var nodeName = node.nodeName.toLowerCase();
        if ('br' === nodeName || 'li' === nodeName) {
          chunks[k] = '\n';
          spans[k << 1] = length++;
          spans[(k++ << 1) | 1] = node;
        }
      } else if (type == 3 || type == 4) {  // Text
        var text = node.nodeValue;
        if (text.length) {
          if (!isPreformatted) {
            text = text.replace(/[ \t\r\n]+/g, ' ');
          } else {
            text = text.replace(/\r\n?/g, '\n');  // Normalize newlines.
          }
          // TODO: handle tabs here?
          chunks[k] = text;
          spans[k << 1] = length;
          length += text.length;
          spans[(k++ << 1) | 1] = node;
        }
      }
    }
  
    walk(node);
  
    return {
      sourceCode: chunks.join('').replace(/\n$/, ''),
      spans: spans
    };
  }

  /**
   * Apply the given language handler to sourceCode and add the resulting
   * decorations to out.
   * @param {!Element} sourceNode
   * @param {number} basePos the index of sourceCode within the chunk of source
   *    whose decorations are already present on out.
   * @param {string} sourceCode
   * @param {function(JobT)} langHandler
   * @param {DecorationsT} out
   */
  function appendDecorations(
      sourceNode, basePos, sourceCode, langHandler, out) {
    if (!sourceCode) { return; }
    /** @type {JobT} */
    var job = {
      sourceNode: sourceNode,
      pre: 1,
      langExtension: null,
      numberLines: null,
      sourceCode: sourceCode,
      spans: null,
      basePos: basePos,
      decorations: null
    };
    langHandler(job);
    out.push.apply(out, job.decorations);
  }

  var notWs = /\S/;

  /**
   * Given an element, if it contains only one child element and any text nodes
   * it contains contain only space characters, return the sole child element.
   * Otherwise returns undefined.
   * <p>
   * This is meant to return the CODE element in {@code <pre><code ...>} when
   * there is a single child element that contains all the non-space textual
   * content, but not to return anything where there are multiple child elements
   * as in {@code <pre><code>...</code><code>...</code></pre>} or when there
   * is textual content.
   */
  function childContentWrapper(element) {
    var wrapper = undefined;
    for (var c = element.firstChild; c; c = c.nextSibling) {
      var type = c.nodeType;
      wrapper = (type === 1)  // Element Node
          ? (wrapper ? element : c)
          : (type === 3)  // Text Node
          ? (notWs.test(c.nodeValue) ? element : wrapper)
          : wrapper;
    }
    return wrapper === element ? undefined : wrapper;
  }

  /** Given triples of [style, pattern, context] returns a lexing function,
    * The lexing function interprets the patterns to find token boundaries and
    * returns a decoration list of the form
    * [index_0, style_0, index_1, style_1, ..., index_n, style_n]
    * where index_n is an index into the sourceCode, and style_n is a style
    * constant like PR_PLAIN.  index_n-1 <= index_n, and style_n-1 applies to
    * all characters in sourceCode[index_n-1:index_n].
    *
    * The stylePatterns is a list whose elements have the form
    * [style : string, pattern : RegExp, DEPRECATED, shortcut : string].
    *
    * Style is a style constant like PR_PLAIN, or can be a string of the
    * form 'lang-FOO', where FOO is a language extension describing the
    * language of the portion of the token in $1 after pattern executes.
    * E.g., if style is 'lang-lisp', and group 1 contains the text
    * '(hello (world))', then that portion of the token will be passed to the
    * registered lisp handler for formatting.
    * The text before and after group 1 will be restyled using this decorator
    * so decorators should take care that this doesn't result in infinite
    * recursion.  For example, the HTML lexer rule for SCRIPT elements looks
    * something like ['lang-js', /<[s]cript>(.+?)<\/script>/].  This may match
    * '<script>foo()<\/script>', which would cause the current decorator to
    * be called with '<script>' which would not match the same rule since
    * group 1 must not be empty, so it would be instead styled as PR_TAG by
    * the generic tag rule.  The handler registered for the 'js' extension would
    * then be called with 'foo()', and finally, the current decorator would
    * be called with '<\/script>' which would not match the original rule and
    * so the generic tag rule would identify it as a tag.
    *
    * Pattern must only match prefixes, and if it matches a prefix, then that
    * match is considered a token with the same style.
    *
    * Context is applied to the last non-whitespace, non-comment token
    * recognized.
    *
    * Shortcut is an optional string of characters, any of which, if the first
    * character, gurantee that this pattern and only this pattern matches.
    *
    * @param {Array} shortcutStylePatterns patterns that always start with
    *   a known character.  Must have a shortcut string.
    * @param {Array} fallthroughStylePatterns patterns that will be tried in
    *   order if the shortcut ones fail.  May have shortcuts.
    *
    * @return {function (JobT)} a function that takes an undecorated job and
    *   attaches a list of decorations.
    */
  function createSimpleLexer(shortcutStylePatterns, fallthroughStylePatterns) {
    var shortcuts = {};
    var tokenizer;
    (function () {
      var allPatterns = shortcutStylePatterns.concat(fallthroughStylePatterns);
      var allRegexs = [];
      var regexKeys = {};
      for (var i = 0, n = allPatterns.length; i < n; ++i) {
        var patternParts = allPatterns[i];
        var shortcutChars = patternParts[3];
        if (shortcutChars) {
          for (var c = shortcutChars.length; --c >= 0;) {
            shortcuts[shortcutChars.charAt(c)] = patternParts;
          }
        }
        var regex = patternParts[1];
        var k = '' + regex;
        if (!regexKeys.hasOwnProperty(k)) {
          allRegexs.push(regex);
          regexKeys[k] = null;
        }
      }
      allRegexs.push(/[\0-\uffff]/);
      tokenizer = combinePrefixPatterns(allRegexs);
    })();

    var nPatterns = fallthroughStylePatterns.length;

    /**
     * Lexes job.sourceCode and attaches an output array job.decorations of
     * style classes preceded by the position at which they start in
     * job.sourceCode in order.
     *
     * @type{function (JobT)}
     */
    var decorate = function (job) {
      var sourceCode = job.sourceCode, basePos = job.basePos;
      var sourceNode = job.sourceNode;
      /** Even entries are positions in source in ascending order.  Odd enties
        * are style markers (e.g., PR_COMMENT) that run from that position until
        * the end.
        * @type {DecorationsT}
        */
      var decorations = [basePos, PR_PLAIN];
      var pos = 0;  // index into sourceCode
      var tokens = sourceCode.match(tokenizer) || [];
      var styleCache = {};

      for (var ti = 0, nTokens = tokens.length; ti < nTokens; ++ti) {
        var token = tokens[ti];
        var style = styleCache[token];
        var match = void 0;

        var isEmbedded;
        if (typeof style === 'string') {
          isEmbedded = false;
        } else {
          var patternParts = shortcuts[token.charAt(0)];
          if (patternParts) {
            match = token.match(patternParts[1]);
            style = patternParts[0];
          } else {
            for (var i = 0; i < nPatterns; ++i) {
              patternParts = fallthroughStylePatterns[i];
              match = token.match(patternParts[1]);
              if (match) {
                style = patternParts[0];
                break;
              }
            }

            if (!match) {  // make sure that we make progress
              style = PR_PLAIN;
            }
          }

          isEmbedded = style.length >= 5 && 'lang-' === style.substring(0, 5);
          if (isEmbedded && !(match && typeof match[1] === 'string')) {
            isEmbedded = false;
            style = PR_SOURCE;
          }

          if (!isEmbedded) { styleCache[token] = style; }
        }

        var tokenStart = pos;
        pos += token.length;

        if (!isEmbedded) {
          decorations.push(basePos + tokenStart, style);
        } else {  // Treat group 1 as an embedded block of source code.
          var embeddedSource = match[1];
          var embeddedSourceStart = token.indexOf(embeddedSource);
          var embeddedSourceEnd = embeddedSourceStart + embeddedSource.length;
          if (match[2]) {
            // If embeddedSource can be blank, then it would match at the
            // beginning which would cause us to infinitely recurse on the
            // entire token, so we catch the right context in match[2].
            embeddedSourceEnd = token.length - match[2].length;
            embeddedSourceStart = embeddedSourceEnd - embeddedSource.length;
          }
          var lang = style.substring(5);
          // Decorate the left of the embedded source
          appendDecorations(
              sourceNode,
              basePos + tokenStart,
              token.substring(0, embeddedSourceStart),
              decorate, decorations);
          // Decorate the embedded source
          appendDecorations(
              sourceNode,
              basePos + tokenStart + embeddedSourceStart,
              embeddedSource,
              langHandlerForExtension(lang, embeddedSource),
              decorations);
          // Decorate the right of the embedded section
          appendDecorations(
              sourceNode,
              basePos + tokenStart + embeddedSourceEnd,
              token.substring(embeddedSourceEnd),
              decorate, decorations);
        }
      }
      job.decorations = decorations;
    };
    return decorate;
  }

  /** returns a function that produces a list of decorations from source text.
    *
    * This code treats ", ', and ` as string delimiters, and \ as a string
    * escape.  It does not recognize perl's qq() style strings.
    * It has no special handling for double delimiter escapes as in basic, or
    * the tripled delimiters used in python, but should work on those regardless
    * although in those cases a single string literal may be broken up into
    * multiple adjacent string literals.
    *
    * It recognizes C, C++, and shell style comments.
    *
    * @param {Object} options a set of optional parameters.
    * @return {function (JobT)} a function that examines the source code
    *     in the input job and builds a decoration list which it attaches to
    *     the job.
    */
  function sourceDecorator(options) {
    var shortcutStylePatterns = [], fallthroughStylePatterns = [];
    if (options['tripleQuotedStrings']) {
      // '''multi-line-string''', 'single-line-string', and double-quoted
      shortcutStylePatterns.push(
          [PR_STRING,  /^(?:\'\'\'(?:[^\'\\]|\\[\s\S]|\'{1,2}(?=[^\']))*(?:\'\'\'|$)|\"\"\"(?:[^\"\\]|\\[\s\S]|\"{1,2}(?=[^\"]))*(?:\"\"\"|$)|\'(?:[^\\\']|\\[\s\S])*(?:\'|$)|\"(?:[^\\\"]|\\[\s\S])*(?:\"|$))/,
           null, '\'"']);
    } else if (options['multiLineStrings']) {
      // 'multi-line-string', "multi-line-string"
      shortcutStylePatterns.push(
          [PR_STRING,  /^(?:\'(?:[^\\\']|\\[\s\S])*(?:\'|$)|\"(?:[^\\\"]|\\[\s\S])*(?:\"|$)|\`(?:[^\\\`]|\\[\s\S])*(?:\`|$))/,
           null, '\'"`']);
    } else {
      // 'single-line-string', "single-line-string"
      shortcutStylePatterns.push(
          [PR_STRING,
           /^(?:\'(?:[^\\\'\r\n]|\\.)*(?:\'|$)|\"(?:[^\\\"\r\n]|\\.)*(?:\"|$))/,
           null, '"\'']);
    }
    if (options['verbatimStrings']) {
      // verbatim-string-literal production from the C# grammar.  See issue 93.
      fallthroughStylePatterns.push(
          [PR_STRING, /^@\"(?:[^\"]|\"\")*(?:\"|$)/, null]);
    }
    var hc = options['hashComments'];
    if (hc) {
      if (options['cStyleComments']) {
        if (hc > 1) {  // multiline hash comments
          shortcutStylePatterns.push(
              [PR_COMMENT, /^#(?:##(?:[^#]|#(?!##))*(?:###|$)|.*)/, null, '#']);
        } else {
          // Stop C preprocessor declarations at an unclosed open comment
          shortcutStylePatterns.push(
              [PR_COMMENT, /^#(?:(?:define|e(?:l|nd)if|else|error|ifn?def|include|line|pragma|undef|warning)\b|[^\r\n]*)/,
               null, '#']);
        }
        // #include <stdio.h>
        fallthroughStylePatterns.push(
            [PR_STRING,
             /^<(?:(?:(?:\.\.\/)*|\/?)(?:[\w-]+(?:\/[\w-]+)+)?[\w-]+\.h(?:h|pp|\+\+)?|[a-z]\w*)>/,
             null]);
      } else {
        shortcutStylePatterns.push([PR_COMMENT, /^#[^\r\n]*/, null, '#']);
      }
    }
    if (options['cStyleComments']) {
      fallthroughStylePatterns.push([PR_COMMENT, /^\/\/[^\r\n]*/, null]);
      fallthroughStylePatterns.push(
          [PR_COMMENT, /^\/\*[\s\S]*?(?:\*\/|$)/, null]);
    }
    var regexLiterals = options['regexLiterals'];
    if (regexLiterals) {
      /**
       * @const
       */
      var regexExcls = regexLiterals > 1
        ? ''  // Multiline regex literals
        : '\n\r';
      /**
       * @const
       */
      var regexAny = regexExcls ? '.' : '[\\S\\s]';
      /**
       * @const
       */
      var REGEX_LITERAL = (
          // A regular expression literal starts with a slash that is
          // not followed by * or / so that it is not confused with
          // comments.
          '/(?=[^/*' + regexExcls + '])'
          // and then contains any number of raw characters,
          + '(?:[^/\\x5B\\x5C' + regexExcls + ']'
          // escape sequences (\x5C),
          +    '|\\x5C' + regexAny
          // or non-nesting character sets (\x5B\x5D);
          +    '|\\x5B(?:[^\\x5C\\x5D' + regexExcls + ']'
          +             '|\\x5C' + regexAny + ')*(?:\\x5D|$))+'
          // finally closed by a /.
          + '/');
      fallthroughStylePatterns.push(
          ['lang-regex',
           RegExp('^' + REGEXP_PRECEDER_PATTERN + '(' + REGEX_LITERAL + ')')
           ]);
    }

    var types = options['types'];
    if (types) {
      fallthroughStylePatterns.push([PR_TYPE, types]);
    }

    var keywords = ("" + options['keywords']).replace(/^ | $/g, '');
    if (keywords.length) {
      fallthroughStylePatterns.push(
          [PR_KEYWORD,
           new RegExp('^(?:' + keywords.replace(/[\s,]+/g, '|') + ')\\b'),
           null]);
    }

    shortcutStylePatterns.push([PR_PLAIN,       /^\s+/, null, ' \r\n\t\xA0']);

    var punctuation =
      // The Bash man page says

      // A word is a sequence of characters considered as a single
      // unit by GRUB. Words are separated by metacharacters,
      // which are the following plus space, tab, and newline: { }
      // | & $ ; < >
      // ...

      // A word beginning with # causes that word and all remaining
      // characters on that line to be ignored.

      // which means that only a '#' after /(?:^|[{}|&$;<>\s])/ starts a
      // comment but empirically
      // $ echo {#}
      // {#}
      // $ echo \$#
      // $#
      // $ echo }#
      // }#

      // so /(?:^|[|&;<>\s])/ is more appropriate.

      // http://gcc.gnu.org/onlinedocs/gcc-2.95.3/cpp_1.html#SEC3
      // suggests that this definition is compatible with a
      // default mode that tries to use a single token definition
      // to recognize both bash/python style comments and C
      // preprocessor directives.

      // This definition of punctuation does not include # in the list of
      // follow-on exclusions, so # will not be broken before if preceeded
      // by a punctuation character.  We could try to exclude # after
      // [|&;<>] but that doesn't seem to cause many major problems.
      // If that does turn out to be a problem, we should change the below
      // when hc is truthy to include # in the run of punctuation characters
      // only when not followint [|&;<>].
      '^.[^\\s\\w.$@\'"`/\\\\]*';
    if (options['regexLiterals']) {
      punctuation += '(?!\s*\/)';
    }

    fallthroughStylePatterns.push(
        // TODO(mikesamuel): recognize non-latin letters and numerals in idents
        [PR_LITERAL,     /^@[a-z_$][a-z_$@0-9]*/i, null],
        [PR_TYPE,        /^(?:[@_]?[A-Z]+[a-z][A-Za-z_$@0-9]*|\w+_t\b)/, null],
        [PR_PLAIN,       /^[a-z_$][a-z_$@0-9]*/i, null],
        [PR_LITERAL,
         new RegExp(
             '^(?:'
             // A hex number
             + '0x[a-f0-9]+'
             // or an octal or decimal number,
             + '|(?:\\d(?:_\\d+)*\\d*(?:\\.\\d*)?|\\.\\d\\+)'
             // possibly in scientific notation
             + '(?:e[+\\-]?\\d+)?'
             + ')'
             // with an optional modifier like UL for unsigned long
             + '[a-z]*', 'i'),
         null, '0123456789'],
        // Don't treat escaped quotes in bash as starting strings.
        // See issue 144.
        [PR_PLAIN,       /^\\[\s\S]?/, null],
        [PR_PUNCTUATION, new RegExp(punctuation), null]);

    return createSimpleLexer(shortcutStylePatterns, fallthroughStylePatterns);
  }

  var decorateSource = sourceDecorator({
        'keywords': ALL_KEYWORDS,
        'hashComments': true,
        'cStyleComments': true,
        'multiLineStrings': true,
        'regexLiterals': true
      });

  /**
   * Given a DOM subtree, wraps it in a list, and puts each line into its own
   * list item.
   *
   * @param {Node} node modified in place.  Its content is pulled into an
   *     HTMLOListElement, and each line is moved into a separate list item.
   *     This requires cloning elements, so the input might not have unique
   *     IDs after numbering.
   * @param {number|null|boolean} startLineNum
   *     If truthy, coerced to an integer which is the 1-indexed line number
   *     of the first line of code.  The number of the first line will be
   *     attached to the list.
   * @param {boolean} isPreformatted true iff white-space in text nodes should
   *     be treated as significant.
   */
  function numberLines(node, startLineNum, isPreformatted) {
    var nocode = /(?:^|\s)nocode(?:\s|$)/;
    var lineBreak = /\r\n?|\n/;
  
    var document = node.ownerDocument;
  
    var li = document.createElement('li');
    while (node.firstChild) {
      li.appendChild(node.firstChild);
    }
    // An array of lines.  We split below, so this is initialized to one
    // un-split line.
    var listItems = [li];
  
    function walk(node) {
      var type = node.nodeType;
      if (type == 1 && !nocode.test(node.className)) {  // Element
        if ('br' === node.nodeName) {
          breakAfter(node);
          // Discard the <BR> since it is now flush against a </LI>.
          if (node.parentNode) {
            node.parentNode.removeChild(node);
          }
        } else {
          for (var child = node.firstChild; child; child = child.nextSibling) {
            walk(child);
          }
        }
      } else if ((type == 3 || type == 4) && isPreformatted) {  // Text
        var text = node.nodeValue;
        var match = text.match(lineBreak);
        if (match) {
          var firstLine = text.substring(0, match.index);
          node.nodeValue = firstLine;
          var tail = text.substring(match.index + match[0].length);
          if (tail) {
            var parent = node.parentNode;
            parent.insertBefore(
              document.createTextNode(tail), node.nextSibling);
          }
          breakAfter(node);
          if (!firstLine) {
            // Don't leave blank text nodes in the DOM.
            node.parentNode.removeChild(node);
          }
        }
      }
    }
  
    // Split a line after the given node.
    function breakAfter(lineEndNode) {
      // If there's nothing to the right, then we can skip ending the line
      // here, and move root-wards since splitting just before an end-tag
      // would require us to create a bunch of empty copies.
      while (!lineEndNode.nextSibling) {
        lineEndNode = lineEndNode.parentNode;
        if (!lineEndNode) { return; }
      }
  
      function breakLeftOf(limit, copy) {
        // Clone shallowly if this node needs to be on both sides of the break.
        var rightSide = copy ? limit.cloneNode(false) : limit;
        var parent = limit.parentNode;
        if (parent) {
          // We clone the parent chain.
          // This helps us resurrect important styling elements that cross lines.
          // E.g. in <i>Foo<br>Bar</i>
          // should be rewritten to <li><i>Foo</i></li><li><i>Bar</i></li>.
          var parentClone = breakLeftOf(parent, 1);
          // Move the clone and everything to the right of the original
          // onto the cloned parent.
          var next = limit.nextSibling;
          parentClone.appendChild(rightSide);
          for (var sibling = next; sibling; sibling = next) {
            next = sibling.nextSibling;
            parentClone.appendChild(sibling);
          }
        }
        return rightSide;
      }
  
      var copiedListItem = breakLeftOf(lineEndNode.nextSibling, 0);
  
      // Walk the parent chain until we reach an unattached LI.
      for (var parent;
           // Check nodeType since IE invents document fragments.
           (parent = copiedListItem.parentNode) && parent.nodeType === 1;) {
        copiedListItem = parent;
      }
      // Put it on the list of lines for later processing.
      listItems.push(copiedListItem);
    }
  
    // Split lines while there are lines left to split.
    for (var i = 0;  // Number of lines that have been split so far.
         i < listItems.length;  // length updated by breakAfter calls.
         ++i) {
      walk(listItems[i]);
    }
  
    // Make sure numeric indices show correctly.
    if (startLineNum === (startLineNum|0)) {
      listItems[0].setAttribute('value', startLineNum);
    }
  
    var ol = document.createElement('ol');
    ol.className = 'linenums';
    var offset = Math.max(0, ((startLineNum - 1 /* zero index */)) | 0) || 0;
    for (var i = 0, n = listItems.length; i < n; ++i) {
      li = listItems[i];
      // Stick a class on the LIs so that stylesheets can
      // color odd/even rows, or any other row pattern that
      // is co-prime with 10.
      li.className = 'L' + ((i + offset) % 10);
      if (!li.firstChild) {
        li.appendChild(document.createTextNode('\xA0'));
      }
      ol.appendChild(li);
    }
  
    node.appendChild(ol);
  }

  /**
   * Breaks {@code job.sourceCode} around style boundaries in
   * {@code job.decorations} and modifies {@code job.sourceNode} in place.
   * @param {JobT} job
   * @private
   */
  function recombineTagsAndDecorations(job) {
    var isIE8OrEarlier = /\bMSIE\s(\d+)/.exec(navigator.userAgent);
    isIE8OrEarlier = isIE8OrEarlier && +isIE8OrEarlier[1] <= 8;
    var newlineRe = /\n/g;
  
    var source = job.sourceCode;
    var sourceLength = source.length;
    // Index into source after the last code-unit recombined.
    var sourceIndex = 0;
  
    var spans = job.spans;
    var nSpans = spans.length;
    // Index into spans after the last span which ends at or before sourceIndex.
    var spanIndex = 0;
  
    var decorations = job.decorations;
    var nDecorations = decorations.length;
    // Index into decorations after the last decoration which ends at or before
    // sourceIndex.
    var decorationIndex = 0;
  
    // Remove all zero-length decorations.
    decorations[nDecorations] = sourceLength;
    var decPos, i;
    for (i = decPos = 0; i < nDecorations;) {
      if (decorations[i] !== decorations[i + 2]) {
        decorations[decPos++] = decorations[i++];
        decorations[decPos++] = decorations[i++];
      } else {
        i += 2;
      }
    }
    nDecorations = decPos;
  
    // Simplify decorations.
    for (i = decPos = 0; i < nDecorations;) {
      var startPos = decorations[i];
      // Conflate all adjacent decorations that use the same style.
      var startDec = decorations[i + 1];
      var end = i + 2;
      while (end + 2 <= nDecorations && decorations[end + 1] === startDec) {
        end += 2;
      }
      decorations[decPos++] = startPos;
      decorations[decPos++] = startDec;
      i = end;
    }
  
    nDecorations = decorations.length = decPos;
  
    var sourceNode = job.sourceNode;
    var oldDisplay = "";
    if (sourceNode) {
      oldDisplay = sourceNode.style.display;
      sourceNode.style.display = 'none';
    }
    try {
      var decoration = null;
      while (spanIndex < nSpans) {
        var spanStart = spans[spanIndex];
        var spanEnd = /** @type{number} */ (spans[spanIndex + 2])
            || sourceLength;
  
        var decEnd = decorations[decorationIndex + 2] || sourceLength;
  
        var end = Math.min(spanEnd, decEnd);
  
        var textNode = /** @type{Node} */ (spans[spanIndex + 1]);
        var styledText;
        if (textNode.nodeType !== 1  // Don't muck with <BR>s or <LI>s
            // Don't introduce spans around empty text nodes.
            && (styledText = source.substring(sourceIndex, end))) {
          // This may seem bizarre, and it is.  Emitting LF on IE causes the
          // code to display with spaces instead of line breaks.
          // Emitting Windows standard issue linebreaks (CRLF) causes a blank
          // space to appear at the beginning of every line but the first.
          // Emitting an old Mac OS 9 line separator makes everything spiffy.
          if (isIE8OrEarlier) {
            styledText = styledText.replace(newlineRe, '\r');
          }
          textNode.nodeValue = styledText;
          var document = textNode.ownerDocument;
          var span = document.createElement('span');
          span.className = decorations[decorationIndex + 1];
          var parentNode = textNode.parentNode;
          parentNode.replaceChild(span, textNode);
          span.appendChild(textNode);
          if (sourceIndex < spanEnd) {  // Split off a text node.
            spans[spanIndex + 1] = textNode
                // TODO: Possibly optimize by using '' if there's no flicker.
                = document.createTextNode(source.substring(end, spanEnd));
            parentNode.insertBefore(textNode, span.nextSibling);
          }
        }
  
        sourceIndex = end;
  
        if (sourceIndex >= spanEnd) {
          spanIndex += 2;
        }
        if (sourceIndex >= decEnd) {
          decorationIndex += 2;
        }
      }
    } finally {
      if (sourceNode) {
        sourceNode.style.display = oldDisplay;
      }
    }
  }

  /** Maps language-specific file extensions to handlers. */
  var langHandlerRegistry = {};
  /** Register a language handler for the given file extensions.
    * @param {function (JobT)} handler a function from source code to a list
    *      of decorations.  Takes a single argument job which describes the
    *      state of the computation and attaches the decorations to it.
    * @param {Array.<string>} fileExtensions
    */
  function registerLangHandler(handler, fileExtensions) {
    for (var i = fileExtensions.length; --i >= 0;) {
      var ext = fileExtensions[i];
      if (!langHandlerRegistry.hasOwnProperty(ext)) {
        langHandlerRegistry[ext] = handler;
      } else if (win['console']) {
        console['warn']('cannot override language handler %s', ext);
      }
    }
  }
  function langHandlerForExtension(extension, source) {
    if (!(extension && langHandlerRegistry.hasOwnProperty(extension))) {
      // Treat it as markup if the first non whitespace character is a < and
      // the last non-whitespace character is a >.
      extension = /^\s*</.test(source)
          ? 'default-markup'
          : 'default-code';
    }
    return langHandlerRegistry[extension];
  }
  registerLangHandler(decorateSource, ['default-code']);
  registerLangHandler(
      createSimpleLexer(
          [],
          [
           [PR_PLAIN,       /^[^<?]+/],
           [PR_DECLARATION, /^<!\w[^>]*(?:>|$)/],
           [PR_COMMENT,     /^<\!--[\s\S]*?(?:-\->|$)/],
           // Unescaped content in an unknown language
           ['lang-',        /^<\?([\s\S]+?)(?:\?>|$)/],
           ['lang-',        /^<%([\s\S]+?)(?:%>|$)/],
           [PR_PUNCTUATION, /^(?:<[%?]|[%?]>)/],
           ['lang-',        /^<xmp\b[^>]*>([\s\S]+?)<\/xmp\b[^>]*>/i],
           // Unescaped content in javascript.  (Or possibly vbscript).
           ['lang-js',      /^<script\b[^>]*>([\s\S]*?)(<\/script\b[^>]*>)/i],
           // Contains unescaped stylesheet content
           ['lang-css',     /^<style\b[^>]*>([\s\S]*?)(<\/style\b[^>]*>)/i],
           ['lang-in.tag',  /^(<\/?[a-z][^<>]*>)/i]
          ]),
      ['default-markup', 'htm', 'html', 'mxml', 'xhtml', 'xml', 'xsl']);
  registerLangHandler(
      createSimpleLexer(
          [
           [PR_PLAIN,        /^[\s]+/, null, ' \t\r\n'],
           [PR_ATTRIB_VALUE, /^(?:\"[^\"]*\"?|\'[^\']*\'?)/, null, '\"\'']
           ],
          [
           [PR_TAG,          /^^<\/?[a-z](?:[\w.:-]*\w)?|\/?>$/i],
           [PR_ATTRIB_NAME,  /^(?!style[\s=]|on)[a-z](?:[\w:-]*\w)?/i],
           ['lang-uq.val',   /^=\s*([^>\'\"\s]*(?:[^>\'\"\s\/]|\/(?=\s)))/],
           [PR_PUNCTUATION,  /^[=<>\/]+/],
           ['lang-js',       /^on\w+\s*=\s*\"([^\"]+)\"/i],
           ['lang-js',       /^on\w+\s*=\s*\'([^\']+)\'/i],
           ['lang-js',       /^on\w+\s*=\s*([^\"\'>\s]+)/i],
           ['lang-css',      /^style\s*=\s*\"([^\"]+)\"/i],
           ['lang-css',      /^style\s*=\s*\'([^\']+)\'/i],
           ['lang-css',      /^style\s*=\s*([^\"\'>\s]+)/i]
           ]),
      ['in.tag']);
  registerLangHandler(
      createSimpleLexer([], [[PR_ATTRIB_VALUE, /^[\s\S]+/]]), ['uq.val']);
  registerLangHandler(sourceDecorator({
          'keywords': CPP_KEYWORDS,
          'hashComments': true,
          'cStyleComments': true,
          'types': C_TYPES
        }), ['c', 'cc', 'cpp', 'cxx', 'cyc', 'm']);
  registerLangHandler(sourceDecorator({
          'keywords': 'null,true,false'
        }), ['json']);
  registerLangHandler(sourceDecorator({
          'keywords': CSHARP_KEYWORDS,
          'hashComments': true,
          'cStyleComments': true,
          'verbatimStrings': true,
          'types': C_TYPES
        }), ['cs']);
  registerLangHandler(sourceDecorator({
          'keywords': JAVA_KEYWORDS,
          'cStyleComments': true
        }), ['java']);
  registerLangHandler(sourceDecorator({
          'keywords': SH_KEYWORDS,
          'hashComments': true,
          'multiLineStrings': true
        }), ['bash', 'bsh', 'csh', 'sh']);
  registerLangHandler(sourceDecorator({
          'keywords': PYTHON_KEYWORDS,
          'hashComments': true,
          'multiLineStrings': true,
          'tripleQuotedStrings': true
        }), ['cv', 'py', 'python']);
  registerLangHandler(sourceDecorator({
          'keywords': PERL_KEYWORDS,
          'hashComments': true,
          'multiLineStrings': true,
          'regexLiterals': 2  // multiline regex literals
        }), ['perl', 'pl', 'pm']);
  registerLangHandler(sourceDecorator({
          'keywords': RUBY_KEYWORDS,
          'hashComments': true,
          'multiLineStrings': true,
          'regexLiterals': true
        }), ['rb', 'ruby']);
  registerLangHandler(sourceDecorator({
          'keywords': JSCRIPT_KEYWORDS,
          'cStyleComments': true,
          'regexLiterals': true
        }), ['javascript', 'js', 'ts', 'typescript']);
  registerLangHandler(sourceDecorator({
          'keywords': COFFEE_KEYWORDS,
          'hashComments': 3,  // ### style block comments
          'cStyleComments': true,
          'multilineStrings': true,
          'tripleQuotedStrings': true,
          'regexLiterals': true
        }), ['coffee']);
  registerLangHandler(
      createSimpleLexer([], [[PR_STRING, /^[\s\S]+/]]), ['regex']);

  /** @param {JobT} job */
  function applyDecorator(job) {
    var opt_langExtension = job.langExtension;

    try {
      // Extract tags, and convert the source code to plain text.
      var sourceAndSpans = extractSourceSpans(job.sourceNode, job.pre);
      /** Plain text. @type {string} */
      var source = sourceAndSpans.sourceCode;
      job.sourceCode = source;
      job.spans = sourceAndSpans.spans;
      job.basePos = 0;

      // Apply the appropriate language handler
      langHandlerForExtension(opt_langExtension, source)(job);

      // Integrate the decorations and tags back into the source code,
      // modifying the sourceNode in place.
      recombineTagsAndDecorations(job);
    } catch (e) {
      if (win['console']) {
        console['log'](e && e['stack'] || e);
      }
    }
  }

  /**
   * Pretty print a chunk of code.
   * @param sourceCodeHtml {string} The HTML to pretty print.
   * @param opt_langExtension {string} The language name to use.
   *     Typically, a filename extension like 'cpp' or 'java'.
   * @param opt_numberLines {number|boolean} True to number lines,
   *     or the 1-indexed number of the first line in sourceCodeHtml.
   */
  function $prettyPrintOne(sourceCodeHtml, opt_langExtension, opt_numberLines) {
    /** @type{number|boolean} */
    var nl = opt_numberLines || false;
    /** @type{string|null} */
    var langExtension = opt_langExtension || null;
    /** @type{!Element} */
    var container = document.createElement('div');
    // This could cause images to load and onload listeners to fire.
    // E.g. <img onerror="alert(1337)" src="nosuchimage.png">.
    // We assume that the inner HTML is from a trusted source.
    // The pre-tag is required for IE8 which strips newlines from innerHTML
    // when it is injected into a <pre> tag.
    // http://stackoverflow.com/questions/451486/pre-tag-loses-line-breaks-when-setting-innerhtml-in-ie
    // http://stackoverflow.com/questions/195363/inserting-a-newline-into-a-pre-tag-ie-javascript
    container.innerHTML = '<pre>' + sourceCodeHtml + '</pre>';
    container = /** @type{!Element} */(container.firstChild);
    if (nl) {
      numberLines(container, nl, true);
    }

    /** @type{JobT} */
    var job = {
      langExtension: langExtension,
      numberLines: nl,
      sourceNode: container,
      pre: 1,
      sourceCode: null,
      basePos: null,
      spans: null,
      decorations: null
    };
    applyDecorator(job);
    return container.innerHTML;
  }

   /**
    * Find all the {@code <pre>} and {@code <code>} tags in the DOM with
    * {@code class=prettyprint} and prettify them.
    *
    * @param {Function} opt_whenDone called when prettifying is done.
    * @param {HTMLElement|HTMLDocument} opt_root an element or document
    *   containing all the elements to pretty print.
    *   Defaults to {@code document.body}.
    */
  function $prettyPrint(opt_whenDone, opt_root) {
    var root = opt_root || document.body;
    var doc = root.ownerDocument || document;
    function byTagName(tn) { return root.getElementsByTagName(tn); }
    // fetch a list of nodes to rewrite
    var codeSegments = [byTagName('pre'), byTagName('code'), byTagName('xmp')];
    var elements = [];
    for (var i = 0; i < codeSegments.length; ++i) {
      for (var j = 0, n = codeSegments[i].length; j < n; ++j) {
        elements.push(codeSegments[i][j]);
      }
    }
    codeSegments = null;

    var clock = Date;
    if (!clock['now']) {
      clock = { 'now': function () { return +(new Date); } };
    }

    // The loop is broken into a series of continuations to make sure that we
    // don't make the browser unresponsive when rewriting a large page.
    var k = 0;

    var langExtensionRe = /\blang(?:uage)?-([\w.]+)(?!\S)/;
    var prettyPrintRe = /\bprettyprint\b/;
    var prettyPrintedRe = /\bprettyprinted\b/;
    var preformattedTagNameRe = /pre|xmp/i;
    var codeRe = /^code$/i;
    var preCodeXmpRe = /^(?:pre|code|xmp)$/i;
    var EMPTY = {};

    function doWork() {
      var endTime = (win['PR_SHOULD_USE_CONTINUATION'] ?
                     clock['now']() + 250 /* ms */ :
                     Infinity);
      for (; k < elements.length && clock['now']() < endTime; k++) {
        var cs = elements[k];

        // Look for a preceding comment like
        // <?prettify lang="..." linenums="..."?>
        var attrs = EMPTY;
        {
          for (var preceder = cs; (preceder = preceder.previousSibling);) {
            var nt = preceder.nodeType;
            // <?foo?> is parsed by HTML 5 to a comment node (8)
            // like <!--?foo?-->, but in XML is a processing instruction
            var value = (nt === 7 || nt === 8) && preceder.nodeValue;
            if (value
                ? !/^\??prettify\b/.test(value)
                : (nt !== 3 || /\S/.test(preceder.nodeValue))) {
              // Skip over white-space text nodes but not others.
              break;
            }
            if (value) {
              attrs = {};
              value.replace(
                  /\b(\w+)=([\w:.%+-]+)/g,
                function (_, name, value) { attrs[name] = value; });
              break;
            }
          }
        }

        var className = cs.className;
        if ((attrs !== EMPTY || prettyPrintRe.test(className))
            // Don't redo this if we've already done it.
            // This allows recalling pretty print to just prettyprint elements
            // that have been added to the page since last call.
            && !prettyPrintedRe.test(className)) {

          // make sure this is not nested in an already prettified element
          var nested = false;
          for (var p = cs.parentNode; p; p = p.parentNode) {
            var tn = p.tagName;
            if (preCodeXmpRe.test(tn)
                && p.className && prettyPrintRe.test(p.className)) {
              nested = true;
              break;
            }
          }
          if (!nested) {
            // Mark done.  If we fail to prettyprint for whatever reason,
            // we shouldn't try again.
            cs.className += ' prettyprinted';

            // If the classes includes a language extensions, use it.
            // Language extensions can be specified like
            //     <pre class="prettyprint lang-cpp">
            // the language extension "cpp" is used to find a language handler
            // as passed to PR.registerLangHandler.
            // HTML5 recommends that a language be specified using "language-"
            // as the prefix instead.  Google Code Prettify supports both.
            // http://dev.w3.org/html5/spec-author-view/the-code-element.html
            var langExtension = attrs['lang'];
            if (!langExtension) {
              langExtension = className.match(langExtensionRe);
              // Support <pre class="prettyprint"><code class="language-c">
              var wrapper;
              if (!langExtension && (wrapper = childContentWrapper(cs))
                  && codeRe.test(wrapper.tagName)) {
                langExtension = wrapper.className.match(langExtensionRe);
              }

              if (langExtension) { langExtension = langExtension[1]; }
            }

            var preformatted;
            if (preformattedTagNameRe.test(cs.tagName)) {
              preformatted = 1;
            } else {
              var currentStyle = cs['currentStyle'];
              var defaultView = doc.defaultView;
              var whitespace = (
                  currentStyle
                  ? currentStyle['whiteSpace']
                  : (defaultView
                     && defaultView.getComputedStyle)
                  ? defaultView.getComputedStyle(cs, null)
                  .getPropertyValue('white-space')
                  : 0);
              preformatted = whitespace
                  && 'pre' === whitespace.substring(0, 3);
            }

            // Look for a class like linenums or linenums:<n> where <n> is the
            // 1-indexed number of the first line.
            var lineNums = attrs['linenums'];
            if (!(lineNums = lineNums === 'true' || +lineNums)) {
              lineNums = className.match(/\blinenums\b(?::(\d+))?/);
              lineNums =
                lineNums
                ? lineNums[1] && lineNums[1].length
                  ? +lineNums[1] : true
                : false;
            }
            if (lineNums) { numberLines(cs, lineNums, preformatted); }

            // do the pretty printing
            var prettyPrintingJob = {
              langExtension: langExtension,
              sourceNode: cs,
              numberLines: lineNums,
              pre: preformatted,
              sourceCode: null,
              basePos: null,
              spans: null,
              decorations: null
            };
            applyDecorator(prettyPrintingJob);
          }
        }
      }
      if (k < elements.length) {
        // finish up in a continuation
        win.setTimeout(doWork, 250);
      } else if ('function' === typeof opt_whenDone) {
        opt_whenDone();
      }
    }

    doWork();
  }

  /**
   * Contains functions for creating and registering new language handlers.
   * @type {Object}
   */
  var PR = win['PR'] = {
        'createSimpleLexer': createSimpleLexer,
        'registerLangHandler': registerLangHandler,
        'sourceDecorator': sourceDecorator,
        'PR_ATTRIB_NAME': PR_ATTRIB_NAME,
        'PR_ATTRIB_VALUE': PR_ATTRIB_VALUE,
        'PR_COMMENT': PR_COMMENT,
        'PR_DECLARATION': PR_DECLARATION,
        'PR_KEYWORD': PR_KEYWORD,
        'PR_LITERAL': PR_LITERAL,
        'PR_NOCODE': PR_NOCODE,
        'PR_PLAIN': PR_PLAIN,
        'PR_PUNCTUATION': PR_PUNCTUATION,
        'PR_SOURCE': PR_SOURCE,
        'PR_STRING': PR_STRING,
        'PR_TAG': PR_TAG,
        'PR_TYPE': PR_TYPE,
        'prettyPrintOne':
           IN_GLOBAL_SCOPE
             ? (win['prettyPrintOne'] = $prettyPrintOne)
             : (prettyPrintOne = $prettyPrintOne),
        'prettyPrint': prettyPrint =
           IN_GLOBAL_SCOPE
             ? (win['prettyPrint'] = $prettyPrint)
             : (prettyPrint = $prettyPrint)
      };

  // Make PR available via the Asynchronous Module Definition (AMD) API.
  // Per https://github.com/amdjs/amdjs-api/wiki/AMD:
  // The Asynchronous Module Definition (AMD) API specifies a
  // mechanism for defining modules such that the module and its
  // dependencies can be asynchronously loaded.
  // ...
  // To allow a clear indicator that a global define function (as
  // needed for script src browser loading) conforms to the AMD API,
  // any global define function SHOULD have a property called "amd"
  // whose value is an object. This helps avoid conflict with any
  // other existing JavaScript code that could have defined a define()
  // function that does not conform to the AMD API.
  var define = win['define'];
  if (typeof define === "function" && define['amd']) {
    define("google-code-prettify", [], function () {
      return PR;
    });
  }
})();


/***/ }),

/***/ "UU91":
/*!*************************************************************************!*\
  !*** ./src/pages/User/Detail/Topics/Exercise/Detail/index.less?modules ***!
  \*************************************************************************/
/*! no static exports found */
/*! exports used: default */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

// extracted by mini-css-extract-plugin
module.exports = {"flex_box_center":"flex_box_center___W-luD","flex_space_between":"flex_space_between___MDZOl","flex_box_vertical_center":"flex_box_vertical_center___GF3w8","flex_box_center_end":"flex_box_center_end___UZLKo","flex_box_column":"flex_box_column___26ZEG","bg":"bg___Lrg3h","containerTitle":"containerTitle___36aFc","containerDesc":"containerDesc___1ITIo","listItem":"listItem___3yIgk","info":"info___1J349","title":"title___1poFp","titleLeft":"titleLeft___1G4yJ","titleRight":"titleRight___3ZAtk","acitons":"acitons___rsUze","export":"export___23Ina"};

/***/ }),

/***/ "VrN/":
/*!***************************************************!*\
  !*** ./node_modules/codemirror/lib/codemirror.js ***!
  \***************************************************/
/*! no static exports found */
/*! all exports used */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://codemirror.net/LICENSE

// This is CodeMirror (https://codemirror.net), a code editor
// implemented in JavaScript on top of the browser's DOM.
//
// You can find some technical background for some of the code below
// at http://marijnhaverbeke.nl/blog/#cm-internals .

(function (global, factory) {
   true ? module.exports = factory() :
  undefined;
}(this, (function () { 'use strict';

  // Kludges for bugs and behavior differences that can't be feature
  // detected are enabled based on userAgent etc sniffing.
  var userAgent = navigator.userAgent;
  var platform = navigator.platform;

  var gecko = /gecko\/\d/i.test(userAgent);
  var ie_upto10 = /MSIE \d/.test(userAgent);
  var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(userAgent);
  var edge = /Edge\/(\d+)/.exec(userAgent);
  var ie = ie_upto10 || ie_11up || edge;
  var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : +(edge || ie_11up)[1]);
  var webkit = !edge && /WebKit\//.test(userAgent);
  var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(userAgent);
  var chrome = !edge && /Chrome\//.test(userAgent);
  var presto = /Opera\//.test(userAgent);
  var safari = /Apple Computer/.test(navigator.vendor);
  var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(userAgent);
  var phantom = /PhantomJS/.test(userAgent);

  var ios = !edge && /AppleWebKit/.test(userAgent) && /Mobile\/\w+/.test(userAgent);
  var android = /Android/.test(userAgent);
  // This is woefully incomplete. Suggestions for alternative methods welcome.
  var mobile = ios || android || /webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent);
  var mac = ios || /Mac/.test(platform);
  var chromeOS = /\bCrOS\b/.test(userAgent);
  var windows = /win/i.test(platform);

  var presto_version = presto && userAgent.match(/Version\/(\d*\.\d*)/);
  if (presto_version) { presto_version = Number(presto_version[1]); }
  if (presto_version && presto_version >= 15) { presto = false; webkit = true; }
  // Some browsers use the wrong event properties to signal cmd/ctrl on OS X
  var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11));
  var captureRightClick = gecko || (ie && ie_version >= 9);

  function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*") }

  var rmClass = function(node, cls) {
    var current = node.className;
    var match = classTest(cls).exec(current);
    if (match) {
      var after = current.slice(match.index + match[0].length);
      node.className = current.slice(0, match.index) + (after ? match[1] + after : "");
    }
  };

  function removeChildren(e) {
    for (var count = e.childNodes.length; count > 0; --count)
      { e.removeChild(e.firstChild); }
    return e
  }

  function removeChildrenAndAdd(parent, e) {
    return removeChildren(parent).appendChild(e)
  }

  function elt(tag, content, className, style) {
    var e = document.createElement(tag);
    if (className) { e.className = className; }
    if (style) { e.style.cssText = style; }
    if (typeof content == "string") { e.appendChild(document.createTextNode(content)); }
    else if (content) { for (var i = 0; i < content.length; ++i) { e.appendChild(content[i]); } }
    return e
  }
  // wrapper for elt, which removes the elt from the accessibility tree
  function eltP(tag, content, className, style) {
    var e = elt(tag, content, className, style);
    e.setAttribute("role", "presentation");
    return e
  }

  var range;
  if (document.createRange) { range = function(node, start, end, endNode) {
    var r = document.createRange();
    r.setEnd(endNode || node, end);
    r.setStart(node, start);
    return r
  }; }
  else { range = function(node, start, end) {
    var r = document.body.createTextRange();
    try { r.moveToElementText(node.parentNode); }
    catch(e) { return r }
    r.collapse(true);
    r.moveEnd("character", end);
    r.moveStart("character", start);
    return r
  }; }

  function contains(parent, child) {
    if (child.nodeType == 3) // Android browser always returns false when child is a textnode
      { child = child.parentNode; }
    if (parent.contains)
      { return parent.contains(child) }
    do {
      if (child.nodeType == 11) { child = child.host; }
      if (child == parent) { return true }
    } while (child = child.parentNode)
  }

  function activeElt() {
    // IE and Edge may throw an "Unspecified Error" when accessing document.activeElement.
    // IE < 10 will throw when accessed while the page is loading or in an iframe.
    // IE > 9 and Edge will throw when accessed in an iframe if document.body is unavailable.
    var activeElement;
    try {
      activeElement = document.activeElement;
    } catch(e) {
      activeElement = document.body || null;
    }
    while (activeElement && activeElement.shadowRoot && activeElement.shadowRoot.activeElement)
      { activeElement = activeElement.shadowRoot.activeElement; }
    return activeElement
  }

  function addClass(node, cls) {
    var current = node.className;
    if (!classTest(cls).test(current)) { node.className += (current ? " " : "") + cls; }
  }
  function joinClasses(a, b) {
    var as = a.split(" ");
    for (var i = 0; i < as.length; i++)
      { if (as[i] && !classTest(as[i]).test(b)) { b += " " + as[i]; } }
    return b
  }

  var selectInput = function(node) { node.select(); };
  if (ios) // Mobile Safari apparently has a bug where select() is broken.
    { selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; }; }
  else if (ie) // Suppress mysterious IE10 errors
    { selectInput = function(node) { try { node.select(); } catch(_e) {} }; }

  function bind(f) {
    var args = Array.prototype.slice.call(arguments, 1);
    return function(){return f.apply(null, args)}
  }

  function copyObj(obj, target, overwrite) {
    if (!target) { target = {}; }
    for (var prop in obj)
      { if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))
        { target[prop] = obj[prop]; } }
    return target
  }

  // Counts the column offset in a string, taking tabs into account.
  // Used mostly to find indentation.
  function countColumn(string, end, tabSize, startIndex, startValue) {
    if (end == null) {
      end = string.search(/[^\s\u00a0]/);
      if (end == -1) { end = string.length; }
    }
    for (var i = startIndex || 0, n = startValue || 0;;) {
      var nextTab = string.indexOf("\t", i);
      if (nextTab < 0 || nextTab >= end)
        { return n + (end - i) }
      n += nextTab - i;
      n += tabSize - (n % tabSize);
      i = nextTab + 1;
    }
  }

  var Delayed = function() {
    this.id = null;
    this.f = null;
    this.time = 0;
    this.handler = bind(this.onTimeout, this);
  };
  Delayed.prototype.onTimeout = function (self) {
    self.id = 0;
    if (self.time <= +new Date) {
      self.f();
    } else {
      setTimeout(self.handler, self.time - +new Date);
    }
  };
  Delayed.prototype.set = function (ms, f) {
    this.f = f;
    var time = +new Date + ms;
    if (!this.id || time < this.time) {
      clearTimeout(this.id);
      this.id = setTimeout(this.handler, ms);
      this.time = time;
    }
  };

  function indexOf(array, elt) {
    for (var i = 0; i < array.length; ++i)
      { if (array[i] == elt) { return i } }
    return -1
  }

  // Number of pixels added to scroller and sizer to hide scrollbar
  var scrollerGap = 50;

  // Returned or thrown by various protocols to signal 'I'm not
  // handling this'.
  var Pass = {toString: function(){return "CodeMirror.Pass"}};

  // Reused option objects for setSelection & friends
  var sel_dontScroll = {scroll: false}, sel_mouse = {origin: "*mouse"}, sel_move = {origin: "+move"};

  // The inverse of countColumn -- find the offset that corresponds to
  // a particular column.
  function findColumn(string, goal, tabSize) {
    for (var pos = 0, col = 0;;) {
      var nextTab = string.indexOf("\t", pos);
      if (nextTab == -1) { nextTab = string.length; }
      var skipped = nextTab - pos;
      if (nextTab == string.length || col + skipped >= goal)
        { return pos + Math.min(skipped, goal - col) }
      col += nextTab - pos;
      col += tabSize - (col % tabSize);
      pos = nextTab + 1;
      if (col >= goal) { return pos }
    }
  }

  var spaceStrs = [""];
  function spaceStr(n) {
    while (spaceStrs.length <= n)
      { spaceStrs.push(lst(spaceStrs) + " "); }
    return spaceStrs[n]
  }

  function lst(arr) { return arr[arr.length-1] }

  function map(array, f) {
    var out = [];
    for (var i = 0; i < array.length; i++) { out[i] = f(array[i], i); }
    return out
  }

  function insertSorted(array, value, score) {
    var pos = 0, priority = score(value);
    while (pos < array.length && score(array[pos]) <= priority) { pos++; }
    array.splice(pos, 0, value);
  }

  function nothing() {}

  function createObj(base, props) {
    var inst;
    if (Object.create) {
      inst = Object.create(base);
    } else {
      nothing.prototype = base;
      inst = new nothing();
    }
    if (props) { copyObj(props, inst); }
    return inst
  }

  var nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/;
  function isWordCharBasic(ch) {
    return /\w/.test(ch) || ch > "\x80" &&
      (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch))
  }
  function isWordChar(ch, helper) {
    if (!helper) { return isWordCharBasic(ch) }
    if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) { return true }
    return helper.test(ch)
  }

  function isEmpty(obj) {
    for (var n in obj) { if (obj.hasOwnProperty(n) && obj[n]) { return false } }
    return true
  }

  // Extending unicode characters. A series of a non-extending char +
  // any number of extending chars is treated as a single unit as far
  // as editing and measuring is concerned. This is not fully correct,
  // since some scripts/fonts/browsers also treat other configurations
  // of code points as a group.
  var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/;
  function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch) }

  // Returns a number from the range [`0`; `str.length`] unless `pos` is outside that range.
  function skipExtendingChars(str, pos, dir) {
    while ((dir < 0 ? pos > 0 : pos < str.length) && isExtendingChar(str.charAt(pos))) { pos += dir; }
    return pos
  }

  // Returns the value from the range [`from`; `to`] that satisfies
  // `pred` and is closest to `from`. Assumes that at least `to`
  // satisfies `pred`. Supports `from` being greater than `to`.
  function findFirst(pred, from, to) {
    // At any point we are certain `to` satisfies `pred`, don't know
    // whether `from` does.
    var dir = from > to ? -1 : 1;
    for (;;) {
      if (from == to) { return from }
      var midF = (from + to) / 2, mid = dir < 0 ? Math.ceil(midF) : Math.floor(midF);
      if (mid == from) { return pred(mid) ? from : to }
      if (pred(mid)) { to = mid; }
      else { from = mid + dir; }
    }
  }

  // BIDI HELPERS

  function iterateBidiSections(order, from, to, f) {
    if (!order) { return f(from, to, "ltr", 0) }
    var found = false;
    for (var i = 0; i < order.length; ++i) {
      var part = order[i];
      if (part.from < to && part.to > from || from == to && part.to == from) {
        f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr", i);
        found = true;
      }
    }
    if (!found) { f(from, to, "ltr"); }
  }

  var bidiOther = null;
  function getBidiPartAt(order, ch, sticky) {
    var found;
    bidiOther = null;
    for (var i = 0; i < order.length; ++i) {
      var cur = order[i];
      if (cur.from < ch && cur.to > ch) { return i }
      if (cur.to == ch) {
        if (cur.from != cur.to && sticky == "before") { found = i; }
        else { bidiOther = i; }
      }
      if (cur.from == ch) {
        if (cur.from != cur.to && sticky != "before") { found = i; }
        else { bidiOther = i; }
      }
    }
    return found != null ? found : bidiOther
  }

  // Bidirectional ordering algorithm
  // See http://unicode.org/reports/tr9/tr9-13.html for the algorithm
  // that this (partially) implements.

  // One-char codes used for character types:
  // L (L):   Left-to-Right
  // R (R):   Right-to-Left
  // r (AL):  Right-to-Left Arabic
  // 1 (EN):  European Number
  // + (ES):  European Number Separator
  // % (ET):  European Number Terminator
  // n (AN):  Arabic Number
  // , (CS):  Common Number Separator
  // m (NSM): Non-Spacing Mark
  // b (BN):  Boundary Neutral
  // s (B):   Paragraph Separator
  // t (S):   Segment Separator
  // w (WS):  Whitespace
  // N (ON):  Other Neutrals

  // Returns null if characters are ordered as they appear
  // (left-to-right), or an array of sections ({from, to, level}
  // objects) in the order in which they occur visually.
  var bidiOrdering = (function() {
    // Character types for codepoints 0 to 0xff
    var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN";
    // Character types for codepoints 0x600 to 0x6f9
    var arabicTypes = "nnnnnnNNr%%r,rNNmmmmmmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmmmnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmnNmmmmmmrrmmNmmmmrr1111111111";
    function charType(code) {
      if (code <= 0xf7) { return lowTypes.charAt(code) }
      else if (0x590 <= code && code <= 0x5f4) { return "R" }
      else if (0x600 <= code && code <= 0x6f9) { return arabicTypes.charAt(code - 0x600) }
      else if (0x6ee <= code && code <= 0x8ac) { return "r" }
      else if (0x2000 <= code && code <= 0x200b) { return "w" }
      else if (code == 0x200c) { return "b" }
      else { return "L" }
    }

    var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/;
    var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/;

    function BidiSpan(level, from, to) {
      this.level = level;
      this.from = from; this.to = to;
    }

    return function(str, direction) {
      var outerType = direction == "ltr" ? "L" : "R";

      if (str.length == 0 || direction == "ltr" && !bidiRE.test(str)) { return false }
      var len = str.length, types = [];
      for (var i = 0; i < len; ++i)
        { types.push(charType(str.charCodeAt(i))); }

      // W1. Examine each non-spacing mark (NSM) in the level run, and
      // change the type of the NSM to the type of the previous
      // character. If the NSM is at the start of the level run, it will
      // get the type of sor.
      for (var i$1 = 0, prev = outerType; i$1 < len; ++i$1) {
        var type = types[i$1];
        if (type == "m") { types[i$1] = prev; }
        else { prev = type; }
      }

      // W2. Search backwards from each instance of a European number
      // until the first strong type (R, L, AL, or sor) is found. If an
      // AL is found, change the type of the European number to Arabic
      // number.
      // W3. Change all ALs to R.
      for (var i$2 = 0, cur = outerType; i$2 < len; ++i$2) {
        var type$1 = types[i$2];
        if (type$1 == "1" && cur == "r") { types[i$2] = "n"; }
        else if (isStrong.test(type$1)) { cur = type$1; if (type$1 == "r") { types[i$2] = "R"; } }
      }

      // W4. A single European separator between two European numbers
      // changes to a European number. A single common separator between
      // two numbers of the same type changes to that type.
      for (var i$3 = 1, prev$1 = types[0]; i$3 < len - 1; ++i$3) {
        var type$2 = types[i$3];
        if (type$2 == "+" && prev$1 == "1" && types[i$3+1] == "1") { types[i$3] = "1"; }
        else if (type$2 == "," && prev$1 == types[i$3+1] &&
                 (prev$1 == "1" || prev$1 == "n")) { types[i$3] = prev$1; }
        prev$1 = type$2;
      }

      // W5. A sequence of European terminators adjacent to European
      // numbers changes to all European numbers.
      // W6. Otherwise, separators and terminators change to Other
      // Neutral.
      for (var i$4 = 0; i$4 < len; ++i$4) {
        var type$3 = types[i$4];
        if (type$3 == ",") { types[i$4] = "N"; }
        else if (type$3 == "%") {
          var end = (void 0);
          for (end = i$4 + 1; end < len && types[end] == "%"; ++end) {}
          var replace = (i$4 && types[i$4-1] == "!") || (end < len && types[end] == "1") ? "1" : "N";
          for (var j = i$4; j < end; ++j) { types[j] = replace; }
          i$4 = end - 1;
        }
      }

      // W7. Search backwards from each instance of a European number
      // until the first strong type (R, L, or sor) is found. If an L is
      // found, then change the type of the European number to L.
      for (var i$5 = 0, cur$1 = outerType; i$5 < len; ++i$5) {
        var type$4 = types[i$5];
        if (cur$1 == "L" && type$4 == "1") { types[i$5] = "L"; }
        else if (isStrong.test(type$4)) { cur$1 = type$4; }
      }

      // N1. A sequence of neutrals takes the direction of the
      // surrounding strong text if the text on both sides has the same
      // direction. European and Arabic numbers act as if they were R in
      // terms of their influence on neutrals. Start-of-level-run (sor)
      // and end-of-level-run (eor) are used at level run boundaries.
      // N2. Any remaining neutrals take the embedding direction.
      for (var i$6 = 0; i$6 < len; ++i$6) {
        if (isNeutral.test(types[i$6])) {
          var end$1 = (void 0);
          for (end$1 = i$6 + 1; end$1 < len && isNeutral.test(types[end$1]); ++end$1) {}
          var before = (i$6 ? types[i$6-1] : outerType) == "L";
          var after = (end$1 < len ? types[end$1] : outerType) == "L";
          var replace$1 = before == after ? (before ? "L" : "R") : outerType;
          for (var j$1 = i$6; j$1 < end$1; ++j$1) { types[j$1] = replace$1; }
          i$6 = end$1 - 1;
        }
      }

      // Here we depart from the documented algorithm, in order to avoid
      // building up an actual levels array. Since there are only three
      // levels (0, 1, 2) in an implementation that doesn't take
      // explicit embedding into account, we can build up the order on
      // the fly, without following the level-based algorithm.
      var order = [], m;
      for (var i$7 = 0; i$7 < len;) {
        if (countsAsLeft.test(types[i$7])) {
          var start = i$7;
          for (++i$7; i$7 < len && countsAsLeft.test(types[i$7]); ++i$7) {}
          order.push(new BidiSpan(0, start, i$7));
        } else {
          var pos = i$7, at = order.length, isRTL = direction == "rtl" ? 1 : 0;
          for (++i$7; i$7 < len && types[i$7] != "L"; ++i$7) {}
          for (var j$2 = pos; j$2 < i$7;) {
            if (countsAsNum.test(types[j$2])) {
              if (pos < j$2) { order.splice(at, 0, new BidiSpan(1, pos, j$2)); at += isRTL; }
              var nstart = j$2;
              for (++j$2; j$2 < i$7 && countsAsNum.test(types[j$2]); ++j$2) {}
              order.splice(at, 0, new BidiSpan(2, nstart, j$2));
              at += isRTL;
              pos = j$2;
            } else { ++j$2; }
          }
          if (pos < i$7) { order.splice(at, 0, new BidiSpan(1, pos, i$7)); }
        }
      }
      if (direction == "ltr") {
        if (order[0].level == 1 && (m = str.match(/^\s+/))) {
          order[0].from = m[0].length;
          order.unshift(new BidiSpan(0, 0, m[0].length));
        }
        if (lst(order).level == 1 && (m = str.match(/\s+$/))) {
          lst(order).to -= m[0].length;
          order.push(new BidiSpan(0, len - m[0].length, len));
        }
      }

      return direction == "rtl" ? order.reverse() : order
    }
  })();

  // Get the bidi ordering for the given line (and cache it). Returns
  // false for lines that are fully left-to-right, and an array of
  // BidiSpan objects otherwise.
  function getOrder(line, direction) {
    var order = line.order;
    if (order == null) { order = line.order = bidiOrdering(line.text, direction); }
    return order
  }

  // EVENT HANDLING

  // Lightweight event framework. on/off also work on DOM nodes,
  // registering native DOM handlers.

  var noHandlers = [];

  var on = function(emitter, type, f) {
    if (emitter.addEventListener) {
      emitter.addEventListener(type, f, false);
    } else if (emitter.attachEvent) {
      emitter.attachEvent("on" + type, f);
    } else {
      var map = emitter._handlers || (emitter._handlers = {});
      map[type] = (map[type] || noHandlers).concat(f);
    }
  };

  function getHandlers(emitter, type) {
    return emitter._handlers && emitter._handlers[type] || noHandlers
  }

  function off(emitter, type, f) {
    if (emitter.removeEventListener) {
      emitter.removeEventListener(type, f, false);
    } else if (emitter.detachEvent) {
      emitter.detachEvent("on" + type, f);
    } else {
      var map = emitter._handlers, arr = map && map[type];
      if (arr) {
        var index = indexOf(arr, f);
        if (index > -1)
          { map[type] = arr.slice(0, index).concat(arr.slice(index + 1)); }
      }
    }
  }

  function signal(emitter, type /*, values...*/) {
    var handlers = getHandlers(emitter, type);
    if (!handlers.length) { return }
    var args = Array.prototype.slice.call(arguments, 2);
    for (var i = 0; i < handlers.length; ++i) { handlers[i].apply(null, args); }
  }

  // The DOM events that CodeMirror handles can be overridden by
  // registering a (non-DOM) handler on the editor for the event name,
  // and preventDefault-ing the event in that handler.
  function signalDOMEvent(cm, e, override) {
    if (typeof e == "string")
      { e = {type: e, preventDefault: function() { this.defaultPrevented = true; }}; }
    signal(cm, override || e.type, cm, e);
    return e_defaultPrevented(e) || e.codemirrorIgnore
  }

  function signalCursorActivity(cm) {
    var arr = cm._handlers && cm._handlers.cursorActivity;
    if (!arr) { return }
    var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []);
    for (var i = 0; i < arr.length; ++i) { if (indexOf(set, arr[i]) == -1)
      { set.push(arr[i]); } }
  }

  function hasHandler(emitter, type) {
    return getHandlers(emitter, type).length > 0
  }

  // Add on and off methods to a constructor's prototype, to make
  // registering events on such objects more convenient.
  function eventMixin(ctor) {
    ctor.prototype.on = function(type, f) {on(this, type, f);};
    ctor.prototype.off = function(type, f) {off(this, type, f);};
  }

  // Due to the fact that we still support jurassic IE versions, some
  // compatibility wrappers are needed.

  function e_preventDefault(e) {
    if (e.preventDefault) { e.preventDefault(); }
    else { e.returnValue = false; }
  }
  function e_stopPropagation(e) {
    if (e.stopPropagation) { e.stopPropagation(); }
    else { e.cancelBubble = true; }
  }
  function e_defaultPrevented(e) {
    return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false
  }
  function e_stop(e) {e_preventDefault(e); e_stopPropagation(e);}

  function e_target(e) {return e.target || e.srcElement}
  function e_button(e) {
    var b = e.which;
    if (b == null) {
      if (e.button & 1) { b = 1; }
      else if (e.button & 2) { b = 3; }
      else if (e.button & 4) { b = 2; }
    }
    if (mac && e.ctrlKey && b == 1) { b = 3; }
    return b
  }

  // Detect drag-and-drop
  var dragAndDrop = function() {
    // There is *some* kind of drag-and-drop support in IE6-8, but I
    // couldn't get it to work yet.
    if (ie && ie_version < 9) { return false }
    var div = elt('div');
    return "draggable" in div || "dragDrop" in div
  }();

  var zwspSupported;
  function zeroWidthElement(measure) {
    if (zwspSupported == null) {
      var test = elt("span", "\u200b");
      removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")]));
      if (measure.firstChild.offsetHeight != 0)
        { zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8); }
    }
    var node = zwspSupported ? elt("span", "\u200b") :
      elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px");
    node.setAttribute("cm-text", "");
    return node
  }

  // Feature-detect IE's crummy client rect reporting for bidi text
  var badBidiRects;
  function hasBadBidiRects(measure) {
    if (badBidiRects != null) { return badBidiRects }
    var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA"));
    var r0 = range(txt, 0, 1).getBoundingClientRect();
    var r1 = range(txt, 1, 2).getBoundingClientRect();
    removeChildren(measure);
    if (!r0 || r0.left == r0.right) { return false } // Safari returns null in some cases (#2780)
    return badBidiRects = (r1.right - r0.right < 3)
  }

  // See if "".split is the broken IE version, if so, provide an
  // alternative way to split lines.
  var splitLinesAuto = "\n\nb".split(/\n/).length != 3 ? function (string) {
    var pos = 0, result = [], l = string.length;
    while (pos <= l) {
      var nl = string.indexOf("\n", pos);
      if (nl == -1) { nl = string.length; }
      var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl);
      var rt = line.indexOf("\r");
      if (rt != -1) {
        result.push(line.slice(0, rt));
        pos += rt + 1;
      } else {
        result.push(line);
        pos = nl + 1;
      }
    }
    return result
  } : function (string) { return string.split(/\r\n?|\n/); };

  var hasSelection = window.getSelection ? function (te) {
    try { return te.selectionStart != te.selectionEnd }
    catch(e) { return false }
  } : function (te) {
    var range;
    try {range = te.ownerDocument.selection.createRange();}
    catch(e) {}
    if (!range || range.parentElement() != te) { return false }
    return range.compareEndPoints("StartToEnd", range) != 0
  };

  var hasCopyEvent = (function () {
    var e = elt("div");
    if ("oncopy" in e) { return true }
    e.setAttribute("oncopy", "return;");
    return typeof e.oncopy == "function"
  })();

  var badZoomedRects = null;
  function hasBadZoomedRects(measure) {
    if (badZoomedRects != null) { return badZoomedRects }
    var node = removeChildrenAndAdd(measure, elt("span", "x"));
    var normal = node.getBoundingClientRect();
    var fromRange = range(node, 0, 1).getBoundingClientRect();
    return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1
  }

  // Known modes, by name and by MIME
  var modes = {}, mimeModes = {};

  // Extra arguments are stored as the mode's dependencies, which is
  // used by (legacy) mechanisms like loadmode.js to automatically
  // load a mode. (Preferred mechanism is the require/define calls.)
  function defineMode(name, mode) {
    if (arguments.length > 2)
      { mode.dependencies = Array.prototype.slice.call(arguments, 2); }
    modes[name] = mode;
  }

  function defineMIME(mime, spec) {
    mimeModes[mime] = spec;
  }

  // Given a MIME type, a {name, ...options} config object, or a name
  // string, return a mode config object.
  function resolveMode(spec) {
    if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) {
      spec = mimeModes[spec];
    } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) {
      var found = mimeModes[spec.name];
      if (typeof found == "string") { found = {name: found}; }
      spec = createObj(found, spec);
      spec.name = found.name;
    } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) {
      return resolveMode("application/xml")
    } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+json$/.test(spec)) {
      return resolveMode("application/json")
    }
    if (typeof spec == "string") { return {name: spec} }
    else { return spec || {name: "null"} }
  }

  // Given a mode spec (anything that resolveMode accepts), find and
  // initialize an actual mode object.
  function getMode(options, spec) {
    spec = resolveMode(spec);
    var mfactory = modes[spec.name];
    if (!mfactory) { return getMode(options, "text/plain") }
    var modeObj = mfactory(options, spec);
    if (modeExtensions.hasOwnProperty(spec.name)) {
      var exts = modeExtensions[spec.name];
      for (var prop in exts) {
        if (!exts.hasOwnProperty(prop)) { continue }
        if (modeObj.hasOwnProperty(prop)) { modeObj["_" + prop] = modeObj[prop]; }
        modeObj[prop] = exts[prop];
      }
    }
    modeObj.name = spec.name;
    if (spec.helperType) { modeObj.helperType = spec.helperType; }
    if (spec.modeProps) { for (var prop$1 in spec.modeProps)
      { modeObj[prop$1] = spec.modeProps[prop$1]; } }

    return modeObj
  }

  // This can be used to attach properties to mode objects from
  // outside the actual mode definition.
  var modeExtensions = {};
  function extendMode(mode, properties) {
    var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {});
    copyObj(properties, exts);
  }

  function copyState(mode, state) {
    if (state === true) { return state }
    if (mode.copyState) { return mode.copyState(state) }
    var nstate = {};
    for (var n in state) {
      var val = state[n];
      if (val instanceof Array) { val = val.concat([]); }
      nstate[n] = val;
    }
    return nstate
  }

  // Given a mode and a state (for that mode), find the inner mode and
  // state at the position that the state refers to.
  function innerMode(mode, state) {
    var info;
    while (mode.innerMode) {
      info = mode.innerMode(state);
      if (!info || info.mode == mode) { break }
      state = info.state;
      mode = info.mode;
    }
    return info || {mode: mode, state: state}
  }

  function startState(mode, a1, a2) {
    return mode.startState ? mode.startState(a1, a2) : true
  }

  // STRING STREAM

  // Fed to the mode parsers, provides helper functions to make
  // parsers more succinct.

  var StringStream = function(string, tabSize, lineOracle) {
    this.pos = this.start = 0;
    this.string = string;
    this.tabSize = tabSize || 8;
    this.lastColumnPos = this.lastColumnValue = 0;
    this.lineStart = 0;
    this.lineOracle = lineOracle;
  };

  StringStream.prototype.eol = function () {return this.pos >= this.string.length};
  StringStream.prototype.sol = function () {return this.pos == this.lineStart};
  StringStream.prototype.peek = function () {return this.string.charAt(this.pos) || undefined};
  StringStream.prototype.next = function () {
    if (this.pos < this.string.length)
      { return this.string.charAt(this.pos++) }
  };
  StringStream.prototype.eat = function (match) {
    var ch = this.string.charAt(this.pos);
    var ok;
    if (typeof match == "string") { ok = ch == match; }
    else { ok = ch && (match.test ? match.test(ch) : match(ch)); }
    if (ok) {++this.pos; return ch}
  };
  StringStream.prototype.eatWhile = function (match) {
    var start = this.pos;
    while (this.eat(match)){}
    return this.pos > start
  };
  StringStream.prototype.eatSpace = function () {
    var start = this.pos;
    while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) { ++this.pos; }
    return this.pos > start
  };
  StringStream.prototype.skipToEnd = function () {this.pos = this.string.length;};
  StringStream.prototype.skipTo = function (ch) {
    var found = this.string.indexOf(ch, this.pos);
    if (found > -1) {this.pos = found; return true}
  };
  StringStream.prototype.backUp = function (n) {this.pos -= n;};
  StringStream.prototype.column = function () {
    if (this.lastColumnPos < this.start) {
      this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue);
      this.lastColumnPos = this.start;
    }
    return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
  };
  StringStream.prototype.indentation = function () {
    return countColumn(this.string, null, this.tabSize) -
      (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
  };
  StringStream.prototype.match = function (pattern, consume, caseInsensitive) {
    if (typeof pattern == "string") {
      var cased = function (str) { return caseInsensitive ? str.toLowerCase() : str; };
      var substr = this.string.substr(this.pos, pattern.length);
      if (cased(substr) == cased(pattern)) {
        if (consume !== false) { this.pos += pattern.length; }
        return true
      }
    } else {
      var match = this.string.slice(this.pos).match(pattern);
      if (match && match.index > 0) { return null }
      if (match && consume !== false) { this.pos += match[0].length; }
      return match
    }
  };
  StringStream.prototype.current = function (){return this.string.slice(this.start, this.pos)};
  StringStream.prototype.hideFirstChars = function (n, inner) {
    this.lineStart += n;
    try { return inner() }
    finally { this.lineStart -= n; }
  };
  StringStream.prototype.lookAhead = function (n) {
    var oracle = this.lineOracle;
    return oracle && oracle.lookAhead(n)
  };
  StringStream.prototype.baseToken = function () {
    var oracle = this.lineOracle;
    return oracle && oracle.baseToken(this.pos)
  };

  // Find the line object corresponding to the given line number.
  function getLine(doc, n) {
    n -= doc.first;
    if (n < 0 || n >= doc.size) { throw new Error("There is no line " + (n + doc.first) + " in the document.") }
    var chunk = doc;
    while (!chunk.lines) {
      for (var i = 0;; ++i) {
        var child = chunk.children[i], sz = child.chunkSize();
        if (n < sz) { chunk = child; break }
        n -= sz;
      }
    }
    return chunk.lines[n]
  }

  // Get the part of a document between two positions, as an array of
  // strings.
  function getBetween(doc, start, end) {
    var out = [], n = start.line;
    doc.iter(start.line, end.line + 1, function (line) {
      var text = line.text;
      if (n == end.line) { text = text.slice(0, end.ch); }
      if (n == start.line) { text = text.slice(start.ch); }
      out.push(text);
      ++n;
    });
    return out
  }
  // Get the lines between from and to, as array of strings.
  function getLines(doc, from, to) {
    var out = [];
    doc.iter(from, to, function (line) { out.push(line.text); }); // iter aborts when callback returns truthy value
    return out
  }

  // Update the height of a line, propagating the height change
  // upwards to parent nodes.
  function updateLineHeight(line, height) {
    var diff = height - line.height;
    if (diff) { for (var n = line; n; n = n.parent) { n.height += diff; } }
  }

  // Given a line object, find its line number by walking up through
  // its parent links.
  function lineNo(line) {
    if (line.parent == null) { return null }
    var cur = line.parent, no = indexOf(cur.lines, line);
    for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
      for (var i = 0;; ++i) {
        if (chunk.children[i] == cur) { break }
        no += chunk.children[i].chunkSize();
      }
    }
    return no + cur.first
  }

  // Find the line at the given vertical position, using the height
  // information in the document tree.
  function lineAtHeight(chunk, h) {
    var n = chunk.first;
    outer: do {
      for (var i$1 = 0; i$1 < chunk.children.length; ++i$1) {
        var child = chunk.children[i$1], ch = child.height;
        if (h < ch) { chunk = child; continue outer }
        h -= ch;
        n += child.chunkSize();
      }
      return n
    } while (!chunk.lines)
    var i = 0;
    for (; i < chunk.lines.length; ++i) {
      var line = chunk.lines[i], lh = line.height;
      if (h < lh) { break }
      h -= lh;
    }
    return n + i
  }

  function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size}

  function lineNumberFor(options, i) {
    return String(options.lineNumberFormatter(i + options.firstLineNumber))
  }

  // A Pos instance represents a position within the text.
  function Pos(line, ch, sticky) {
    if ( sticky === void 0 ) sticky = null;

    if (!(this instanceof Pos)) { return new Pos(line, ch, sticky) }
    this.line = line;
    this.ch = ch;
    this.sticky = sticky;
  }

  // Compare two positions, return 0 if they are the same, a negative
  // number when a is less, and a positive number otherwise.
  function cmp(a, b) { return a.line - b.line || a.ch - b.ch }

  function equalCursorPos(a, b) { return a.sticky == b.sticky && cmp(a, b) == 0 }

  function copyPos(x) {return Pos(x.line, x.ch)}
  function maxPos(a, b) { return cmp(a, b) < 0 ? b : a }
  function minPos(a, b) { return cmp(a, b) < 0 ? a : b }

  // Most of the external API clips given positions to make sure they
  // actually exist within the document.
  function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1))}
  function clipPos(doc, pos) {
    if (pos.line < doc.first) { return Pos(doc.first, 0) }
    var last = doc.first + doc.size - 1;
    if (pos.line > last) { return Pos(last, getLine(doc, last).text.length) }
    return clipToLen(pos, getLine(doc, pos.line).text.length)
  }
  function clipToLen(pos, linelen) {
    var ch = pos.ch;
    if (ch == null || ch > linelen) { return Pos(pos.line, linelen) }
    else if (ch < 0) { return Pos(pos.line, 0) }
    else { return pos }
  }
  function clipPosArray(doc, array) {
    var out = [];
    for (var i = 0; i < array.length; i++) { out[i] = clipPos(doc, array[i]); }
    return out
  }

  var SavedContext = function(state, lookAhead) {
    this.state = state;
    this.lookAhead = lookAhead;
  };

  var Context = function(doc, state, line, lookAhead) {
    this.state = state;
    this.doc = doc;
    this.line = line;
    this.maxLookAhead = lookAhead || 0;
    this.baseTokens = null;
    this.baseTokenPos = 1;
  };

  Context.prototype.lookAhead = function (n) {
    var line = this.doc.getLine(this.line + n);
    if (line != null && n > this.maxLookAhead) { this.maxLookAhead = n; }
    return line
  };

  Context.prototype.baseToken = function (n) {
    if (!this.baseTokens) { return null }
    while (this.baseTokens[this.baseTokenPos] <= n)
      { this.baseTokenPos += 2; }
    var type = this.baseTokens[this.baseTokenPos + 1];
    return {type: type && type.replace(/( |^)overlay .*/, ""),
            size: this.baseTokens[this.baseTokenPos] - n}
  };

  Context.prototype.nextLine = function () {
    this.line++;
    if (this.maxLookAhead > 0) { this.maxLookAhead--; }
  };

  Context.fromSaved = function (doc, saved, line) {
    if (saved instanceof SavedContext)
      { return new Context(doc, copyState(doc.mode, saved.state), line, saved.lookAhead) }
    else
      { return new Context(doc, copyState(doc.mode, saved), line) }
  };

  Context.prototype.save = function (copy) {
    var state = copy !== false ? copyState(this.doc.mode, this.state) : this.state;
    return this.maxLookAhead > 0 ? new SavedContext(state, this.maxLookAhead) : state
  };


  // Compute a style array (an array starting with a mode generation
  // -- for invalidation -- followed by pairs of end positions and
  // style strings), which is used to highlight the tokens on the
  // line.
  function highlightLine(cm, line, context, forceToEnd) {
    // A styles array always starts with a number identifying the
    // mode/overlays that it is based on (for easy invalidation).
    var st = [cm.state.modeGen], lineClasses = {};
    // Compute the base array of styles
    runMode(cm, line.text, cm.doc.mode, context, function (end, style) { return st.push(end, style); },
            lineClasses, forceToEnd);
    var state = context.state;

    // Run overlays, adjust style array.
    var loop = function ( o ) {
      context.baseTokens = st;
      var overlay = cm.state.overlays[o], i = 1, at = 0;
      context.state = true;
      runMode(cm, line.text, overlay.mode, context, function (end, style) {
        var start = i;
        // Ensure there's a token end at the current position, and that i points at it
        while (at < end) {
          var i_end = st[i];
          if (i_end > end)
            { st.splice(i, 1, end, st[i+1], i_end); }
          i += 2;
          at = Math.min(end, i_end);
        }
        if (!style) { return }
        if (overlay.opaque) {
          st.splice(start, i - start, end, "overlay " + style);
          i = start + 2;
        } else {
          for (; start < i; start += 2) {
            var cur = st[start+1];
            st[start+1] = (cur ? cur + " " : "") + "overlay " + style;
          }
        }
      }, lineClasses);
      context.state = state;
      context.baseTokens = null;
      context.baseTokenPos = 1;
    };

    for (var o = 0; o < cm.state.overlays.length; ++o) loop( o );

    return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null}
  }

  function getLineStyles(cm, line, updateFrontier) {
    if (!line.styles || line.styles[0] != cm.state.modeGen) {
      var context = getContextBefore(cm, lineNo(line));
      var resetState = line.text.length > cm.options.maxHighlightLength && copyState(cm.doc.mode, context.state);
      var result = highlightLine(cm, line, context);
      if (resetState) { context.state = resetState; }
      line.stateAfter = context.save(!resetState);
      line.styles = result.styles;
      if (result.classes) { line.styleClasses = result.classes; }
      else if (line.styleClasses) { line.styleClasses = null; }
      if (updateFrontier === cm.doc.highlightFrontier)
        { cm.doc.modeFrontier = Math.max(cm.doc.modeFrontier, ++cm.doc.highlightFrontier); }
    }
    return line.styles
  }

  function getContextBefore(cm, n, precise) {
    var doc = cm.doc, display = cm.display;
    if (!doc.mode.startState) { return new Context(doc, true, n) }
    var start = findStartLine(cm, n, precise);
    var saved = start > doc.first && getLine(doc, start - 1).stateAfter;
    var context = saved ? Context.fromSaved(doc, saved, start) : new Context(doc, startState(doc.mode), start);

    doc.iter(start, n, function (line) {
      processLine(cm, line.text, context);
      var pos = context.line;
      line.stateAfter = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo ? context.save() : null;
      context.nextLine();
    });
    if (precise) { doc.modeFrontier = context.line; }
    return context
  }

  // Lightweight form of highlight -- proceed over this line and
  // update state, but don't save a style array. Used for lines that
  // aren't currently visible.
  function processLine(cm, text, context, startAt) {
    var mode = cm.doc.mode;
    var stream = new StringStream(text, cm.options.tabSize, context);
    stream.start = stream.pos = startAt || 0;
    if (text == "") { callBlankLine(mode, context.state); }
    while (!stream.eol()) {
      readToken(mode, stream, context.state);
      stream.start = stream.pos;
    }
  }

  function callBlankLine(mode, state) {
    if (mode.blankLine) { return mode.blankLine(state) }
    if (!mode.innerMode) { return }
    var inner = innerMode(mode, state);
    if (inner.mode.blankLine) { return inner.mode.blankLine(inner.state) }
  }

  function readToken(mode, stream, state, inner) {
    for (var i = 0; i < 10; i++) {
      if (inner) { inner[0] = innerMode(mode, state).mode; }
      var style = mode.token(stream, state);
      if (stream.pos > stream.start) { return style }
    }
    throw new Error("Mode " + mode.name + " failed to advance stream.")
  }

  var Token = function(stream, type, state) {
    this.start = stream.start; this.end = stream.pos;
    this.string = stream.current();
    this.type = type || null;
    this.state = state;
  };

  // Utility for getTokenAt and getLineTokens
  function takeToken(cm, pos, precise, asArray) {
    var doc = cm.doc, mode = doc.mode, style;
    pos = clipPos(doc, pos);
    var line = getLine(doc, pos.line), context = getContextBefore(cm, pos.line, precise);
    var stream = new StringStream(line.text, cm.options.tabSize, context), tokens;
    if (asArray) { tokens = []; }
    while ((asArray || stream.pos < pos.ch) && !stream.eol()) {
      stream.start = stream.pos;
      style = readToken(mode, stream, context.state);
      if (asArray) { tokens.push(new Token(stream, style, copyState(doc.mode, context.state))); }
    }
    return asArray ? tokens : new Token(stream, style, context.state)
  }

  function extractLineClasses(type, output) {
    if (type) { for (;;) {
      var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/);
      if (!lineClass) { break }
      type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length);
      var prop = lineClass[1] ? "bgClass" : "textClass";
      if (output[prop] == null)
        { output[prop] = lineClass[2]; }
      else if (!(new RegExp("(?:^|\\s)" + lineClass[2] + "(?:$|\\s)")).test(output[prop]))
        { output[prop] += " " + lineClass[2]; }
    } }
    return type
  }

  // Run the given mode's parser over a line, calling f for each token.
  function runMode(cm, text, mode, context, f, lineClasses, forceToEnd) {
    var flattenSpans = mode.flattenSpans;
    if (flattenSpans == null) { flattenSpans = cm.options.flattenSpans; }
    var curStart = 0, curStyle = null;
    var stream = new StringStream(text, cm.options.tabSize, context), style;
    var inner = cm.options.addModeClass && [null];
    if (text == "") { extractLineClasses(callBlankLine(mode, context.state), lineClasses); }
    while (!stream.eol()) {
      if (stream.pos > cm.options.maxHighlightLength) {
        flattenSpans = false;
        if (forceToEnd) { processLine(cm, text, context, stream.pos); }
        stream.pos = text.length;
        style = null;
      } else {
        style = extractLineClasses(readToken(mode, stream, context.state, inner), lineClasses);
      }
      if (inner) {
        var mName = inner[0].name;
        if (mName) { style = "m-" + (style ? mName + " " + style : mName); }
      }
      if (!flattenSpans || curStyle != style) {
        while (curStart < stream.start) {
          curStart = Math.min(stream.start, curStart + 5000);
          f(curStart, curStyle);
        }
        curStyle = style;
      }
      stream.start = stream.pos;
    }
    while (curStart < stream.pos) {
      // Webkit seems to refuse to render text nodes longer than 57444
      // characters, and returns inaccurate measurements in nodes
      // starting around 5000 chars.
      var pos = Math.min(stream.pos, curStart + 5000);
      f(pos, curStyle);
      curStart = pos;
    }
  }

  // Finds the line to start with when starting a parse. Tries to
  // find a line with a stateAfter, so that it can start with a
  // valid state. If that fails, it returns the line with the
  // smallest indentation, which tends to need the least context to
  // parse correctly.
  function findStartLine(cm, n, precise) {
    var minindent, minline, doc = cm.doc;
    var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100);
    for (var search = n; search > lim; --search) {
      if (search <= doc.first) { return doc.first }
      var line = getLine(doc, search - 1), after = line.stateAfter;
      if (after && (!precise || search + (after instanceof SavedContext ? after.lookAhead : 0) <= doc.modeFrontier))
        { return search }
      var indented = countColumn(line.text, null, cm.options.tabSize);
      if (minline == null || minindent > indented) {
        minline = search - 1;
        minindent = indented;
      }
    }
    return minline
  }

  function retreatFrontier(doc, n) {
    doc.modeFrontier = Math.min(doc.modeFrontier, n);
    if (doc.highlightFrontier < n - 10) { return }
    var start = doc.first;
    for (var line = n - 1; line > start; line--) {
      var saved = getLine(doc, line).stateAfter;
      // change is on 3
      // state on line 1 looked ahead 2 -- so saw 3
      // test 1 + 2 < 3 should cover this
      if (saved && (!(saved instanceof SavedContext) || line + saved.lookAhead < n)) {
        start = line + 1;
        break
      }
    }
    doc.highlightFrontier = Math.min(doc.highlightFrontier, start);
  }

  // Optimize some code when these features are not used.
  var sawReadOnlySpans = false, sawCollapsedSpans = false;

  function seeReadOnlySpans() {
    sawReadOnlySpans = true;
  }

  function seeCollapsedSpans() {
    sawCollapsedSpans = true;
  }

  // TEXTMARKER SPANS

  function MarkedSpan(marker, from, to) {
    this.marker = marker;
    this.from = from; this.to = to;
  }

  // Search an array of spans for a span matching the given marker.
  function getMarkedSpanFor(spans, marker) {
    if (spans) { for (var i = 0; i < spans.length; ++i) {
      var span = spans[i];
      if (span.marker == marker) { return span }
    } }
  }
  // Remove a span from an array, returning undefined if no spans are
  // left (we don't store arrays for lines without spans).
  function removeMarkedSpan(spans, span) {
    var r;
    for (var i = 0; i < spans.length; ++i)
      { if (spans[i] != span) { (r || (r = [])).push(spans[i]); } }
    return r
  }
  // Add a span to a line.
  function addMarkedSpan(line, span) {
    line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span];
    span.marker.attachLine(line);
  }

  // Used for the algorithm that adjusts markers for a change in the
  // document. These functions cut an array of spans at a given
  // character position, returning an array of remaining chunks (or
  // undefined if nothing remains).
  function markedSpansBefore(old, startCh, isInsert) {
    var nw;
    if (old) { for (var i = 0; i < old.length; ++i) {
      var span = old[i], marker = span.marker;
      var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh);
      if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) {
        var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh)
        ;(nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to));
      }
    } }
    return nw
  }
  function markedSpansAfter(old, endCh, isInsert) {
    var nw;
    if (old) { for (var i = 0; i < old.length; ++i) {
      var span = old[i], marker = span.marker;
      var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh);
      if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) {
        var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh)
        ;(nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh,
                                              span.to == null ? null : span.to - endCh));
      }
    } }
    return nw
  }

  // Given a change object, compute the new set of marker spans that
  // cover the line in which the change took place. Removes spans
  // entirely within the change, reconnects spans belonging to the
  // same marker that appear on both sides of the change, and cuts off
  // spans partially within the change. Returns an array of span
  // arrays with one element for each line in (after) the change.
  function stretchSpansOverChange(doc, change) {
    if (change.full) { return null }
    var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans;
    var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans;
    if (!oldFirst && !oldLast) { return null }

    var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0;
    // Get the spans that 'stick out' on both sides
    var first = markedSpansBefore(oldFirst, startCh, isInsert);
    var last = markedSpansAfter(oldLast, endCh, isInsert);

    // Next, merge those two ends
    var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0);
    if (first) {
      // Fix up .to properties of first
      for (var i = 0; i < first.length; ++i) {
        var span = first[i];
        if (span.to == null) {
          var found = getMarkedSpanFor(last, span.marker);
          if (!found) { span.to = startCh; }
          else if (sameLine) { span.to = found.to == null ? null : found.to + offset; }
        }
      }
    }
    if (last) {
      // Fix up .from in last (or move them into first in case of sameLine)
      for (var i$1 = 0; i$1 < last.length; ++i$1) {
        var span$1 = last[i$1];
        if (span$1.to != null) { span$1.to += offset; }
        if (span$1.from == null) {
          var found$1 = getMarkedSpanFor(first, span$1.marker);
          if (!found$1) {
            span$1.from = offset;
            if (sameLine) { (first || (first = [])).push(span$1); }
          }
        } else {
          span$1.from += offset;
          if (sameLine) { (first || (first = [])).push(span$1); }
        }
      }
    }
    // Make sure we didn't create any zero-length spans
    if (first) { first = clearEmptySpans(first); }
    if (last && last != first) { last = clearEmptySpans(last); }

    var newMarkers = [first];
    if (!sameLine) {
      // Fill gap with whole-line-spans
      var gap = change.text.length - 2, gapMarkers;
      if (gap > 0 && first)
        { for (var i$2 = 0; i$2 < first.length; ++i$2)
          { if (first[i$2].to == null)
            { (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i$2].marker, null, null)); } } }
      for (var i$3 = 0; i$3 < gap; ++i$3)
        { newMarkers.push(gapMarkers); }
      newMarkers.push(last);
    }
    return newMarkers
  }

  // Remove spans that are empty and don't have a clearWhenEmpty
  // option of false.
  function clearEmptySpans(spans) {
    for (var i = 0; i < spans.length; ++i) {
      var span = spans[i];
      if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false)
        { spans.splice(i--, 1); }
    }
    if (!spans.length) { return null }
    return spans
  }

  // Used to 'clip' out readOnly ranges when making a change.
  function removeReadOnlyRanges(doc, from, to) {
    var markers = null;
    doc.iter(from.line, to.line + 1, function (line) {
      if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {
        var mark = line.markedSpans[i].marker;
        if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))
          { (markers || (markers = [])).push(mark); }
      } }
    });
    if (!markers) { return null }
    var parts = [{from: from, to: to}];
    for (var i = 0; i < markers.length; ++i) {
      var mk = markers[i], m = mk.find(0);
      for (var j = 0; j < parts.length; ++j) {
        var p = parts[j];
        if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) { continue }
        var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to);
        if (dfrom < 0 || !mk.inclusiveLeft && !dfrom)
          { newParts.push({from: p.from, to: m.from}); }
        if (dto > 0 || !mk.inclusiveRight && !dto)
          { newParts.push({from: m.to, to: p.to}); }
        parts.splice.apply(parts, newParts);
        j += newParts.length - 3;
      }
    }
    return parts
  }

  // Connect or disconnect spans from a line.
  function detachMarkedSpans(line) {
    var spans = line.markedSpans;
    if (!spans) { return }
    for (var i = 0; i < spans.length; ++i)
      { spans[i].marker.detachLine(line); }
    line.markedSpans = null;
  }
  function attachMarkedSpans(line, spans) {
    if (!spans) { return }
    for (var i = 0; i < spans.length; ++i)
      { spans[i].marker.attachLine(line); }
    line.markedSpans = spans;
  }

  // Helpers used when computing which overlapping collapsed span
  // counts as the larger one.
  function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0 }
  function extraRight(marker) { return marker.inclusiveRight ? 1 : 0 }

  // Returns a number indicating which of two overlapping collapsed
  // spans is larger (and thus includes the other). Falls back to
  // comparing ids when the spans cover exactly the same range.
  function compareCollapsedMarkers(a, b) {
    var lenDiff = a.lines.length - b.lines.length;
    if (lenDiff != 0) { return lenDiff }
    var aPos = a.find(), bPos = b.find();
    var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b);
    if (fromCmp) { return -fromCmp }
    var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b);
    if (toCmp) { return toCmp }
    return b.id - a.id
  }

  // Find out whether a line ends or starts in a collapsed span. If
  // so, return the marker for that span.
  function collapsedSpanAtSide(line, start) {
    var sps = sawCollapsedSpans && line.markedSpans, found;
    if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {
      sp = sps[i];
      if (sp.marker.collapsed && (start ? sp.from : sp.to) == null &&
          (!found || compareCollapsedMarkers(found, sp.marker) < 0))
        { found = sp.marker; }
    } }
    return found
  }
  function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true) }
  function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false) }

  function collapsedSpanAround(line, ch) {
    var sps = sawCollapsedSpans && line.markedSpans, found;
    if (sps) { for (var i = 0; i < sps.length; ++i) {
      var sp = sps[i];
      if (sp.marker.collapsed && (sp.from == null || sp.from < ch) && (sp.to == null || sp.to > ch) &&
          (!found || compareCollapsedMarkers(found, sp.marker) < 0)) { found = sp.marker; }
    } }
    return found
  }

  // Test whether there exists a collapsed span that partially
  // overlaps (covers the start or end, but not both) of a new span.
  // Such overlap is not allowed.
  function conflictingCollapsedRange(doc, lineNo, from, to, marker) {
    var line = getLine(doc, lineNo);
    var sps = sawCollapsedSpans && line.markedSpans;
    if (sps) { for (var i = 0; i < sps.length; ++i) {
      var sp = sps[i];
      if (!sp.marker.collapsed) { continue }
      var found = sp.marker.find(0);
      var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker);
      var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker);
      if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) { continue }
      if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) ||
          fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0))
        { return true }
    } }
  }

  // A visual line is a line as drawn on the screen. Folding, for
  // example, can cause multiple logical lines to appear on the same
  // visual line. This finds the start of the visual line that the
  // given line is part of (usually that is the line itself).
  function visualLine(line) {
    var merged;
    while (merged = collapsedSpanAtStart(line))
      { line = merged.find(-1, true).line; }
    return line
  }

  function visualLineEnd(line) {
    var merged;
    while (merged = collapsedSpanAtEnd(line))
      { line = merged.find(1, true).line; }
    return line
  }

  // Returns an array of logical lines that continue the visual line
  // started by the argument, or undefined if there are no such lines.
  function visualLineContinued(line) {
    var merged, lines;
    while (merged = collapsedSpanAtEnd(line)) {
      line = merged.find(1, true).line
      ;(lines || (lines = [])).push(line);
    }
    return lines
  }

  // Get the line number of the start of the visual line that the
  // given line number is part of.
  function visualLineNo(doc, lineN) {
    var line = getLine(doc, lineN), vis = visualLine(line);
    if (line == vis) { return lineN }
    return lineNo(vis)
  }

  // Get the line number of the start of the next visual line after
  // the given line.
  function visualLineEndNo(doc, lineN) {
    if (lineN > doc.lastLine()) { return lineN }
    var line = getLine(doc, lineN), merged;
    if (!lineIsHidden(doc, line)) { return lineN }
    while (merged = collapsedSpanAtEnd(line))
      { line = merged.find(1, true).line; }
    return lineNo(line) + 1
  }

  // Compute whether a line is hidden. Lines count as hidden when they
  // are part of a visual line that starts with another line, or when
  // they are entirely covered by collapsed, non-widget span.
  function lineIsHidden(doc, line) {
    var sps = sawCollapsedSpans && line.markedSpans;
    if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {
      sp = sps[i];
      if (!sp.marker.collapsed) { continue }
      if (sp.from == null) { return true }
      if (sp.marker.widgetNode) { continue }
      if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp))
        { return true }
    } }
  }
  function lineIsHiddenInner(doc, line, span) {
    if (span.to == null) {
      var end = span.marker.find(1, true);
      return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker))
    }
    if (span.marker.inclusiveRight && span.to == line.text.length)
      { return true }
    for (var sp = (void 0), i = 0; i < line.markedSpans.length; ++i) {
      sp = line.markedSpans[i];
      if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to &&
          (sp.to == null || sp.to != span.from) &&
          (sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&
          lineIsHiddenInner(doc, line, sp)) { return true }
    }
  }

  // Find the height above the given line.
  function heightAtLine(lineObj) {
    lineObj = visualLine(lineObj);

    var h = 0, chunk = lineObj.parent;
    for (var i = 0; i < chunk.lines.length; ++i) {
      var line = chunk.lines[i];
      if (line == lineObj) { break }
      else { h += line.height; }
    }
    for (var p = chunk.parent; p; chunk = p, p = chunk.parent) {
      for (var i$1 = 0; i$1 < p.children.length; ++i$1) {
        var cur = p.children[i$1];
        if (cur == chunk) { break }
        else { h += cur.height; }
      }
    }
    return h
  }

  // Compute the character length of a line, taking into account
  // collapsed ranges (see markText) that might hide parts, and join
  // other lines onto it.
  function lineLength(line) {
    if (line.height == 0) { return 0 }
    var len = line.text.length, merged, cur = line;
    while (merged = collapsedSpanAtStart(cur)) {
      var found = merged.find(0, true);
      cur = found.from.line;
      len += found.from.ch - found.to.ch;
    }
    cur = line;
    while (merged = collapsedSpanAtEnd(cur)) {
      var found$1 = merged.find(0, true);
      len -= cur.text.length - found$1.from.ch;
      cur = found$1.to.line;
      len += cur.text.length - found$1.to.ch;
    }
    return len
  }

  // Find the longest line in the document.
  function findMaxLine(cm) {
    var d = cm.display, doc = cm.doc;
    d.maxLine = getLine(doc, doc.first);
    d.maxLineLength = lineLength(d.maxLine);
    d.maxLineChanged = true;
    doc.iter(function (line) {
      var len = lineLength(line);
      if (len > d.maxLineLength) {
        d.maxLineLength = len;
        d.maxLine = line;
      }
    });
  }

  // LINE DATA STRUCTURE

  // Line objects. These hold state related to a line, including
  // highlighting info (the styles array).
  var Line = function(text, markedSpans, estimateHeight) {
    this.text = text;
    attachMarkedSpans(this, markedSpans);
    this.height = estimateHeight ? estimateHeight(this) : 1;
  };

  Line.prototype.lineNo = function () { return lineNo(this) };
  eventMixin(Line);

  // Change the content (text, markers) of a line. Automatically
  // invalidates cached information and tries to re-estimate the
  // line's height.
  function updateLine(line, text, markedSpans, estimateHeight) {
    line.text = text;
    if (line.stateAfter) { line.stateAfter = null; }
    if (line.styles) { line.styles = null; }
    if (line.order != null) { line.order = null; }
    detachMarkedSpans(line);
    attachMarkedSpans(line, markedSpans);
    var estHeight = estimateHeight ? estimateHeight(line) : 1;
    if (estHeight != line.height) { updateLineHeight(line, estHeight); }
  }

  // Detach a line from the document tree and its markers.
  function cleanUpLine(line) {
    line.parent = null;
    detachMarkedSpans(line);
  }

  // Convert a style as returned by a mode (either null, or a string
  // containing one or more styles) to a CSS style. This is cached,
  // and also looks for line-wide styles.
  var styleToClassCache = {}, styleToClassCacheWithMode = {};
  function interpretTokenStyle(style, options) {
    if (!style || /^\s*$/.test(style)) { return null }
    var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache;
    return cache[style] ||
      (cache[style] = style.replace(/\S+/g, "cm-$&"))
  }

  // Render the DOM representation of the text of a line. Also builds
  // up a 'line map', which points at the DOM nodes that represent
  // specific stretches of text, and is used by the measuring code.
  // The returned object contains the DOM node, this map, and
  // information about line-wide styles that were set by the mode.
  function buildLineContent(cm, lineView) {
    // The padding-right forces the element to have a 'border', which
    // is needed on Webkit to be able to get line-level bounding
    // rectangles for it (in measureChar).
    var content = eltP("span", null, null, webkit ? "padding-right: .1px" : null);
    var builder = {pre: eltP("pre", [content], "CodeMirror-line"), content: content,
                   col: 0, pos: 0, cm: cm,
                   trailingSpace: false,
                   splitSpaces: cm.getOption("lineWrapping")};
    lineView.measure = {};

    // Iterate over the logical lines that make up this visual line.
    for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) {
      var line = i ? lineView.rest[i - 1] : lineView.line, order = (void 0);
      builder.pos = 0;
      builder.addToken = buildToken;
      // Optionally wire in some hacks into the token-rendering
      // algorithm, to deal with browser quirks.
      if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line, cm.doc.direction)))
        { builder.addToken = buildTokenBadBidi(builder.addToken, order); }
      builder.map = [];
      var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line);
      insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate));
      if (line.styleClasses) {
        if (line.styleClasses.bgClass)
          { builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || ""); }
        if (line.styleClasses.textClass)
          { builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || ""); }
      }

      // Ensure at least a single node is present, for measuring.
      if (builder.map.length == 0)
        { builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure))); }

      // Store the map and a cache object for the current logical line
      if (i == 0) {
        lineView.measure.map = builder.map;
        lineView.measure.cache = {};
      } else {
  (lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map)
        ;(lineView.measure.caches || (lineView.measure.caches = [])).push({});
      }
    }

    // See issue #2901
    if (webkit) {
      var last = builder.content.lastChild;
      if (/\bcm-tab\b/.test(last.className) || (last.querySelector && last.querySelector(".cm-tab")))
        { builder.content.className = "cm-tab-wrap-hack"; }
    }

    signal(cm, "renderLine", cm, lineView.line, builder.pre);
    if (builder.pre.className)
      { builder.textClass = joinClasses(builder.pre.className, builder.textClass || ""); }

    return builder
  }

  function defaultSpecialCharPlaceholder(ch) {
    var token = elt("span", "\u2022", "cm-invalidchar");
    token.title = "\\u" + ch.charCodeAt(0).toString(16);
    token.setAttribute("aria-label", token.title);
    return token
  }

  // Build up the DOM representation for a single token, and add it to
  // the line map. Takes care to render special characters separately.
  function buildToken(builder, text, style, startStyle, endStyle, css, attributes) {
    if (!text) { return }
    var displayText = builder.splitSpaces ? splitSpaces(text, builder.trailingSpace) : text;
    var special = builder.cm.state.specialChars, mustWrap = false;
    var content;
    if (!special.test(text)) {
      builder.col += text.length;
      content = document.createTextNode(displayText);
      builder.map.push(builder.pos, builder.pos + text.length, content);
      if (ie && ie_version < 9) { mustWrap = true; }
      builder.pos += text.length;
    } else {
      content = document.createDocumentFragment();
      var pos = 0;
      while (true) {
        special.lastIndex = pos;
        var m = special.exec(text);
        var skipped = m ? m.index - pos : text.length - pos;
        if (skipped) {
          var txt = document.createTextNode(displayText.slice(pos, pos + skipped));
          if (ie && ie_version < 9) { content.appendChild(elt("span", [txt])); }
          else { content.appendChild(txt); }
          builder.map.push(builder.pos, builder.pos + skipped, txt);
          builder.col += skipped;
          builder.pos += skipped;
        }
        if (!m) { break }
        pos += skipped + 1;
        var txt$1 = (void 0);
        if (m[0] == "\t") {
          var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize;
          txt$1 = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab"));
          txt$1.setAttribute("role", "presentation");
          txt$1.setAttribute("cm-text", "\t");
          builder.col += tabWidth;
        } else if (m[0] == "\r" || m[0] == "\n") {
          txt$1 = content.appendChild(elt("span", m[0] == "\r" ? "\u240d" : "\u2424", "cm-invalidchar"));
          txt$1.setAttribute("cm-text", m[0]);
          builder.col += 1;
        } else {
          txt$1 = builder.cm.options.specialCharPlaceholder(m[0]);
          txt$1.setAttribute("cm-text", m[0]);
          if (ie && ie_version < 9) { content.appendChild(elt("span", [txt$1])); }
          else { content.appendChild(txt$1); }
          builder.col += 1;
        }
        builder.map.push(builder.pos, builder.pos + 1, txt$1);
        builder.pos++;
      }
    }
    builder.trailingSpace = displayText.charCodeAt(text.length - 1) == 32;
    if (style || startStyle || endStyle || mustWrap || css || attributes) {
      var fullStyle = style || "";
      if (startStyle) { fullStyle += startStyle; }
      if (endStyle) { fullStyle += endStyle; }
      var token = elt("span", [content], fullStyle, css);
      if (attributes) {
        for (var attr in attributes) { if (attributes.hasOwnProperty(attr) && attr != "style" && attr != "class")
          { token.setAttribute(attr, attributes[attr]); } }
      }
      return builder.content.appendChild(token)
    }
    builder.content.appendChild(content);
  }

  // Change some spaces to NBSP to prevent the browser from collapsing
  // trailing spaces at the end of a line when rendering text (issue #1362).
  function splitSpaces(text, trailingBefore) {
    if (text.length > 1 && !/  /.test(text)) { return text }
    var spaceBefore = trailingBefore, result = "";
    for (var i = 0; i < text.length; i++) {
      var ch = text.charAt(i);
      if (ch == " " && spaceBefore && (i == text.length - 1 || text.charCodeAt(i + 1) == 32))
        { ch = "\u00a0"; }
      result += ch;
      spaceBefore = ch == " ";
    }
    return result
  }

  // Work around nonsense dimensions being reported for stretches of
  // right-to-left text.
  function buildTokenBadBidi(inner, order) {
    return function (builder, text, style, startStyle, endStyle, css, attributes) {
      style = style ? style + " cm-force-border" : "cm-force-border";
      var start = builder.pos, end = start + text.length;
      for (;;) {
        // Find the part that overlaps with the start of this text
        var part = (void 0);
        for (var i = 0; i < order.length; i++) {
          part = order[i];
          if (part.to > start && part.from <= start) { break }
        }
        if (part.to >= end) { return inner(builder, text, style, startStyle, endStyle, css, attributes) }
        inner(builder, text.slice(0, part.to - start), style, startStyle, null, css, attributes);
        startStyle = null;
        text = text.slice(part.to - start);
        start = part.to;
      }
    }
  }

  function buildCollapsedSpan(builder, size, marker, ignoreWidget) {
    var widget = !ignoreWidget && marker.widgetNode;
    if (widget) { builder.map.push(builder.pos, builder.pos + size, widget); }
    if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) {
      if (!widget)
        { widget = builder.content.appendChild(document.createElement("span")); }
      widget.setAttribute("cm-marker", marker.id);
    }
    if (widget) {
      builder.cm.display.input.setUneditable(widget);
      builder.content.appendChild(widget);
    }
    builder.pos += size;
    builder.trailingSpace = false;
  }

  // Outputs a number of spans to make up a line, taking highlighting
  // and marked text into account.
  function insertLineContent(line, builder, styles) {
    var spans = line.markedSpans, allText = line.text, at = 0;
    if (!spans) {
      for (var i$1 = 1; i$1 < styles.length; i$1+=2)
        { builder.addToken(builder, allText.slice(at, at = styles[i$1]), interpretTokenStyle(styles[i$1+1], builder.cm.options)); }
      return
    }

    var len = allText.length, pos = 0, i = 1, text = "", style, css;
    var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, collapsed, attributes;
    for (;;) {
      if (nextChange == pos) { // Update current marker set
        spanStyle = spanEndStyle = spanStartStyle = css = "";
        attributes = null;
        collapsed = null; nextChange = Infinity;
        var foundBookmarks = [], endStyles = (void 0);
        for (var j = 0; j < spans.length; ++j) {
          var sp = spans[j], m = sp.marker;
          if (m.type == "bookmark" && sp.from == pos && m.widgetNode) {
            foundBookmarks.push(m);
          } else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) {
            if (sp.to != null && sp.to != pos && nextChange > sp.to) {
              nextChange = sp.to;
              spanEndStyle = "";
            }
            if (m.className) { spanStyle += " " + m.className; }
            if (m.css) { css = (css ? css + ";" : "") + m.css; }
            if (m.startStyle && sp.from == pos) { spanStartStyle += " " + m.startStyle; }
            if (m.endStyle && sp.to == nextChange) { (endStyles || (endStyles = [])).push(m.endStyle, sp.to); }
            // support for the old title property
            // https://github.com/codemirror/CodeMirror/pull/5673
            if (m.title) { (attributes || (attributes = {})).title = m.title; }
            if (m.attributes) {
              for (var attr in m.attributes)
                { (attributes || (attributes = {}))[attr] = m.attributes[attr]; }
            }
            if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0))
              { collapsed = sp; }
          } else if (sp.from > pos && nextChange > sp.from) {
            nextChange = sp.from;
          }
        }
        if (endStyles) { for (var j$1 = 0; j$1 < endStyles.length; j$1 += 2)
          { if (endStyles[j$1 + 1] == nextChange) { spanEndStyle += " " + endStyles[j$1]; } } }

        if (!collapsed || collapsed.from == pos) { for (var j$2 = 0; j$2 < foundBookmarks.length; ++j$2)
          { buildCollapsedSpan(builder, 0, foundBookmarks[j$2]); } }
        if (collapsed && (collapsed.from || 0) == pos) {
          buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos,
                             collapsed.marker, collapsed.from == null);
          if (collapsed.to == null) { return }
          if (collapsed.to == pos) { collapsed = false; }
        }
      }
      if (pos >= len) { break }

      var upto = Math.min(len, nextChange);
      while (true) {
        if (text) {
          var end = pos + text.length;
          if (!collapsed) {
            var tokenText = end > upto ? text.slice(0, upto - pos) : text;
            builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle,
                             spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", css, attributes);
          }
          if (end >= upto) {text = text.slice(upto - pos); pos = upto; break}
          pos = end;
          spanStartStyle = "";
        }
        text = allText.slice(at, at = styles[i++]);
        style = interpretTokenStyle(styles[i++], builder.cm.options);
      }
    }
  }


  // These objects are used to represent the visible (currently drawn)
  // part of the document. A LineView may correspond to multiple
  // logical lines, if those are connected by collapsed ranges.
  function LineView(doc, line, lineN) {
    // The starting line
    this.line = line;
    // Continuing lines, if any
    this.rest = visualLineContinued(line);
    // Number of logical lines in this visual line
    this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1;
    this.node = this.text = null;
    this.hidden = lineIsHidden(doc, line);
  }

  // Create a range of LineView objects for the given lines.
  function buildViewArray(cm, from, to) {
    var array = [], nextPos;
    for (var pos = from; pos < to; pos = nextPos) {
      var view = new LineView(cm.doc, getLine(cm.doc, pos), pos);
      nextPos = pos + view.size;
      array.push(view);
    }
    return array
  }

  var operationGroup = null;

  function pushOperation(op) {
    if (operationGroup) {
      operationGroup.ops.push(op);
    } else {
      op.ownsGroup = operationGroup = {
        ops: [op],
        delayedCallbacks: []
      };
    }
  }

  function fireCallbacksForOps(group) {
    // Calls delayed callbacks and cursorActivity handlers until no
    // new ones appear
    var callbacks = group.delayedCallbacks, i = 0;
    do {
      for (; i < callbacks.length; i++)
        { callbacks[i].call(null); }
      for (var j = 0; j < group.ops.length; j++) {
        var op = group.ops[j];
        if (op.cursorActivityHandlers)
          { while (op.cursorActivityCalled < op.cursorActivityHandlers.length)
            { op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm); } }
      }
    } while (i < callbacks.length)
  }

  function finishOperation(op, endCb) {
    var group = op.ownsGroup;
    if (!group) { return }

    try { fireCallbacksForOps(group); }
    finally {
      operationGroup = null;
      endCb(group);
    }
  }

  var orphanDelayedCallbacks = null;

  // Often, we want to signal events at a point where we are in the
  // middle of some work, but don't want the handler to start calling
  // other methods on the editor, which might be in an inconsistent
  // state or simply not expect any other events to happen.
  // signalLater looks whether there are any handlers, and schedules
  // them to be executed when the last operation ends, or, if no
  // operation is active, when a timeout fires.
  function signalLater(emitter, type /*, values...*/) {
    var arr = getHandlers(emitter, type);
    if (!arr.length) { return }
    var args = Array.prototype.slice.call(arguments, 2), list;
    if (operationGroup) {
      list = operationGroup.delayedCallbacks;
    } else if (orphanDelayedCallbacks) {
      list = orphanDelayedCallbacks;
    } else {
      list = orphanDelayedCallbacks = [];
      setTimeout(fireOrphanDelayed, 0);
    }
    var loop = function ( i ) {
      list.push(function () { return arr[i].apply(null, args); });
    };

    for (var i = 0; i < arr.length; ++i)
      loop( i );
  }

  function fireOrphanDelayed() {
    var delayed = orphanDelayedCallbacks;
    orphanDelayedCallbacks = null;
    for (var i = 0; i < delayed.length; ++i) { delayed[i](); }
  }

  // When an aspect of a line changes, a string is added to
  // lineView.changes. This updates the relevant part of the line's
  // DOM structure.
  function updateLineForChanges(cm, lineView, lineN, dims) {
    for (var j = 0; j < lineView.changes.length; j++) {
      var type = lineView.changes[j];
      if (type == "text") { updateLineText(cm, lineView); }
      else if (type == "gutter") { updateLineGutter(cm, lineView, lineN, dims); }
      else if (type == "class") { updateLineClasses(cm, lineView); }
      else if (type == "widget") { updateLineWidgets(cm, lineView, dims); }
    }
    lineView.changes = null;
  }

  // Lines with gutter elements, widgets or a background class need to
  // be wrapped, and have the extra elements added to the wrapper div
  function ensureLineWrapped(lineView) {
    if (lineView.node == lineView.text) {
      lineView.node = elt("div", null, null, "position: relative");
      if (lineView.text.parentNode)
        { lineView.text.parentNode.replaceChild(lineView.node, lineView.text); }
      lineView.node.appendChild(lineView.text);
      if (ie && ie_version < 8) { lineView.node.style.zIndex = 2; }
    }
    return lineView.node
  }

  function updateLineBackground(cm, lineView) {
    var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass;
    if (cls) { cls += " CodeMirror-linebackground"; }
    if (lineView.background) {
      if (cls) { lineView.background.className = cls; }
      else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; }
    } else if (cls) {
      var wrap = ensureLineWrapped(lineView);
      lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild);
      cm.display.input.setUneditable(lineView.background);
    }
  }

  // Wrapper around buildLineContent which will reuse the structure
  // in display.externalMeasured when possible.
  function getLineContent(cm, lineView) {
    var ext = cm.display.externalMeasured;
    if (ext && ext.line == lineView.line) {
      cm.display.externalMeasured = null;
      lineView.measure = ext.measure;
      return ext.built
    }
    return buildLineContent(cm, lineView)
  }

  // Redraw the line's text. Interacts with the background and text
  // classes because the mode may output tokens that influence these
  // classes.
  function updateLineText(cm, lineView) {
    var cls = lineView.text.className;
    var built = getLineContent(cm, lineView);
    if (lineView.text == lineView.node) { lineView.node = built.pre; }
    lineView.text.parentNode.replaceChild(built.pre, lineView.text);
    lineView.text = built.pre;
    if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) {
      lineView.bgClass = built.bgClass;
      lineView.textClass = built.textClass;
      updateLineClasses(cm, lineView);
    } else if (cls) {
      lineView.text.className = cls;
    }
  }

  function updateLineClasses(cm, lineView) {
    updateLineBackground(cm, lineView);
    if (lineView.line.wrapClass)
      { ensureLineWrapped(lineView).className = lineView.line.wrapClass; }
    else if (lineView.node != lineView.text)
      { lineView.node.className = ""; }
    var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass;
    lineView.text.className = textClass || "";
  }

  function updateLineGutter(cm, lineView, lineN, dims) {
    if (lineView.gutter) {
      lineView.node.removeChild(lineView.gutter);
      lineView.gutter = null;
    }
    if (lineView.gutterBackground) {
      lineView.node.removeChild(lineView.gutterBackground);
      lineView.gutterBackground = null;
    }
    if (lineView.line.gutterClass) {
      var wrap = ensureLineWrapped(lineView);
      lineView.gutterBackground = elt("div", null, "CodeMirror-gutter-background " + lineView.line.gutterClass,
                                      ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px; width: " + (dims.gutterTotalWidth) + "px"));
      cm.display.input.setUneditable(lineView.gutterBackground);
      wrap.insertBefore(lineView.gutterBackground, lineView.text);
    }
    var markers = lineView.line.gutterMarkers;
    if (cm.options.lineNumbers || markers) {
      var wrap$1 = ensureLineWrapped(lineView);
      var gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px"));
      cm.display.input.setUneditable(gutterWrap);
      wrap$1.insertBefore(gutterWrap, lineView.text);
      if (lineView.line.gutterClass)
        { gutterWrap.className += " " + lineView.line.gutterClass; }
      if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"]))
        { lineView.lineNumber = gutterWrap.appendChild(
          elt("div", lineNumberFor(cm.options, lineN),
              "CodeMirror-linenumber CodeMirror-gutter-elt",
              ("left: " + (dims.gutterLeft["CodeMirror-linenumbers"]) + "px; width: " + (cm.display.lineNumInnerWidth) + "px"))); }
      if (markers) { for (var k = 0; k < cm.display.gutterSpecs.length; ++k) {
        var id = cm.display.gutterSpecs[k].className, found = markers.hasOwnProperty(id) && markers[id];
        if (found)
          { gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt",
                                     ("left: " + (dims.gutterLeft[id]) + "px; width: " + (dims.gutterWidth[id]) + "px"))); }
      } }
    }
  }

  function updateLineWidgets(cm, lineView, dims) {
    if (lineView.alignable) { lineView.alignable = null; }
    var isWidget = classTest("CodeMirror-linewidget");
    for (var node = lineView.node.firstChild, next = (void 0); node; node = next) {
      next = node.nextSibling;
      if (isWidget.test(node.className)) { lineView.node.removeChild(node); }
    }
    insertLineWidgets(cm, lineView, dims);
  }

  // Build a line's DOM representation from scratch
  function buildLineElement(cm, lineView, lineN, dims) {
    var built = getLineContent(cm, lineView);
    lineView.text = lineView.node = built.pre;
    if (built.bgClass) { lineView.bgClass = built.bgClass; }
    if (built.textClass) { lineView.textClass = built.textClass; }

    updateLineClasses(cm, lineView);
    updateLineGutter(cm, lineView, lineN, dims);
    insertLineWidgets(cm, lineView, dims);
    return lineView.node
  }

  // A lineView may contain multiple logical lines (when merged by
  // collapsed spans). The widgets for all of them need to be drawn.
  function insertLineWidgets(cm, lineView, dims) {
    insertLineWidgetsFor(cm, lineView.line, lineView, dims, true);
    if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)
      { insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false); } }
  }

  function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) {
    if (!line.widgets) { return }
    var wrap = ensureLineWrapped(lineView);
    for (var i = 0, ws = line.widgets; i < ws.length; ++i) {
      var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget" + (widget.className ? " " + widget.className : ""));
      if (!widget.handleMouseEvents) { node.setAttribute("cm-ignore-events", "true"); }
      positionLineWidget(widget, node, lineView, dims);
      cm.display.input.setUneditable(node);
      if (allowAbove && widget.above)
        { wrap.insertBefore(node, lineView.gutter || lineView.text); }
      else
        { wrap.appendChild(node); }
      signalLater(widget, "redraw");
    }
  }

  function positionLineWidget(widget, node, lineView, dims) {
    if (widget.noHScroll) {
  (lineView.alignable || (lineView.alignable = [])).push(node);
      var width = dims.wrapperWidth;
      node.style.left = dims.fixedPos + "px";
      if (!widget.coverGutter) {
        width -= dims.gutterTotalWidth;
        node.style.paddingLeft = dims.gutterTotalWidth + "px";
      }
      node.style.width = width + "px";
    }
    if (widget.coverGutter) {
      node.style.zIndex = 5;
      node.style.position = "relative";
      if (!widget.noHScroll) { node.style.marginLeft = -dims.gutterTotalWidth + "px"; }
    }
  }

  function widgetHeight(widget) {
    if (widget.height != null) { return widget.height }
    var cm = widget.doc.cm;
    if (!cm) { return 0 }
    if (!contains(document.body, widget.node)) {
      var parentStyle = "position: relative;";
      if (widget.coverGutter)
        { parentStyle += "margin-left: -" + cm.display.gutters.offsetWidth + "px;"; }
      if (widget.noHScroll)
        { parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;"; }
      removeChildrenAndAdd(cm.display.measure, elt("div", [widget.node], null, parentStyle));
    }
    return widget.height = widget.node.parentNode.offsetHeight
  }

  // Return true when the given mouse event happened in a widget
  function eventInWidget(display, e) {
    for (var n = e_target(e); n != display.wrapper; n = n.parentNode) {
      if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") ||
          (n.parentNode == display.sizer && n != display.mover))
        { return true }
    }
  }

  // POSITION MEASUREMENT

  function paddingTop(display) {return display.lineSpace.offsetTop}
  function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight}
  function paddingH(display) {
    if (display.cachedPaddingH) { return display.cachedPaddingH }
    var e = removeChildrenAndAdd(display.measure, elt("pre", "x", "CodeMirror-line-like"));
    var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle;
    var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)};
    if (!isNaN(data.left) && !isNaN(data.right)) { display.cachedPaddingH = data; }
    return data
  }

  function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth }
  function displayWidth(cm) {
    return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth
  }
  function displayHeight(cm) {
    return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight
  }

  // Ensure the lineView.wrapping.heights array is populated. This is
  // an array of bottom offsets for the lines that make up a drawn
  // line. When lineWrapping is on, there might be more than one
  // height.
  function ensureLineHeights(cm, lineView, rect) {
    var wrapping = cm.options.lineWrapping;
    var curWidth = wrapping && displayWidth(cm);
    if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) {
      var heights = lineView.measure.heights = [];
      if (wrapping) {
        lineView.measure.width = curWidth;
        var rects = lineView.text.firstChild.getClientRects();
        for (var i = 0; i < rects.length - 1; i++) {
          var cur = rects[i], next = rects[i + 1];
          if (Math.abs(cur.bottom - next.bottom) > 2)
            { heights.push((cur.bottom + next.top) / 2 - rect.top); }
        }
      }
      heights.push(rect.bottom - rect.top);
    }
  }

  // Find a line map (mapping character offsets to text nodes) and a
  // measurement cache for the given line number. (A line view might
  // contain multiple lines when collapsed ranges are present.)
  function mapFromLineView(lineView, line, lineN) {
    if (lineView.line == line)
      { return {map: lineView.measure.map, cache: lineView.measure.cache} }
    for (var i = 0; i < lineView.rest.length; i++)
      { if (lineView.rest[i] == line)
        { return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]} } }
    for (var i$1 = 0; i$1 < lineView.rest.length; i$1++)
      { if (lineNo(lineView.rest[i$1]) > lineN)
        { return {map: lineView.measure.maps[i$1], cache: lineView.measure.caches[i$1], before: true} } }
  }

  // Render a line into the hidden node display.externalMeasured. Used
  // when measurement is needed for a line that's not in the viewport.
  function updateExternalMeasurement(cm, line) {
    line = visualLine(line);
    var lineN = lineNo(line);
    var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN);
    view.lineN = lineN;
    var built = view.built = buildLineContent(cm, view);
    view.text = built.pre;
    removeChildrenAndAdd(cm.display.lineMeasure, built.pre);
    return view
  }

  // Get a {top, bottom, left, right} box (in line-local coordinates)
  // for a given character.
  function measureChar(cm, line, ch, bias) {
    return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias)
  }

  // Find a line view that corresponds to the given line number.
  function findViewForLine(cm, lineN) {
    if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo)
      { return cm.display.view[findViewIndex(cm, lineN)] }
    var ext = cm.display.externalMeasured;
    if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size)
      { return ext }
  }

  // Measurement can be split in two steps, the set-up work that
  // applies to the whole line, and the measurement of the actual
  // character. Functions like coordsChar, that need to do a lot of
  // measurements in a row, can thus ensure that the set-up work is
  // only done once.
  function prepareMeasureForLine(cm, line) {
    var lineN = lineNo(line);
    var view = findViewForLine(cm, lineN);
    if (view && !view.text) {
      view = null;
    } else if (view && view.changes) {
      updateLineForChanges(cm, view, lineN, getDimensions(cm));
      cm.curOp.forceUpdate = true;
    }
    if (!view)
      { view = updateExternalMeasurement(cm, line); }

    var info = mapFromLineView(view, line, lineN);
    return {
      line: line, view: view, rect: null,
      map: info.map, cache: info.cache, before: info.before,
      hasHeights: false
    }
  }

  // Given a prepared measurement object, measures the position of an
  // actual character (or fetches it from the cache).
  function measureCharPrepared(cm, prepared, ch, bias, varHeight) {
    if (prepared.before) { ch = -1; }
    var key = ch + (bias || ""), found;
    if (prepared.cache.hasOwnProperty(key)) {
      found = prepared.cache[key];
    } else {
      if (!prepared.rect)
        { prepared.rect = prepared.view.text.getBoundingClientRect(); }
      if (!prepared.hasHeights) {
        ensureLineHeights(cm, prepared.view, prepared.rect);
        prepared.hasHeights = true;
      }
      found = measureCharInner(cm, prepared, ch, bias);
      if (!found.bogus) { prepared.cache[key] = found; }
    }
    return {left: found.left, right: found.right,
            top: varHeight ? found.rtop : found.top,
            bottom: varHeight ? found.rbottom : found.bottom}
  }

  var nullRect = {left: 0, right: 0, top: 0, bottom: 0};

  function nodeAndOffsetInLineMap(map, ch, bias) {
    var node, start, end, collapse, mStart, mEnd;
    // First, search the line map for the text node corresponding to,
    // or closest to, the target character.
    for (var i = 0; i < map.length; i += 3) {
      mStart = map[i];
      mEnd = map[i + 1];
      if (ch < mStart) {
        start = 0; end = 1;
        collapse = "left";
      } else if (ch < mEnd) {
        start = ch - mStart;
        end = start + 1;
      } else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) {
        end = mEnd - mStart;
        start = end - 1;
        if (ch >= mEnd) { collapse = "right"; }
      }
      if (start != null) {
        node = map[i + 2];
        if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right"))
          { collapse = bias; }
        if (bias == "left" && start == 0)
          { while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) {
            node = map[(i -= 3) + 2];
            collapse = "left";
          } }
        if (bias == "right" && start == mEnd - mStart)
          { while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) {
            node = map[(i += 3) + 2];
            collapse = "right";
          } }
        break
      }
    }
    return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd}
  }

  function getUsefulRect(rects, bias) {
    var rect = nullRect;
    if (bias == "left") { for (var i = 0; i < rects.length; i++) {
      if ((rect = rects[i]).left != rect.right) { break }
    } } else { for (var i$1 = rects.length - 1; i$1 >= 0; i$1--) {
      if ((rect = rects[i$1]).left != rect.right) { break }
    } }
    return rect
  }

  function measureCharInner(cm, prepared, ch, bias) {
    var place = nodeAndOffsetInLineMap(prepared.map, ch, bias);
    var node = place.node, start = place.start, end = place.end, collapse = place.collapse;

    var rect;
    if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates.
      for (var i$1 = 0; i$1 < 4; i$1++) { // Retry a maximum of 4 times when nonsense rectangles are returned
        while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) { --start; }
        while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) { ++end; }
        if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart)
          { rect = node.parentNode.getBoundingClientRect(); }
        else
          { rect = getUsefulRect(range(node, start, end).getClientRects(), bias); }
        if (rect.left || rect.right || start == 0) { break }
        end = start;
        start = start - 1;
        collapse = "right";
      }
      if (ie && ie_version < 11) { rect = maybeUpdateRectForZooming(cm.display.measure, rect); }
    } else { // If it is a widget, simply get the box for the whole widget.
      if (start > 0) { collapse = bias = "right"; }
      var rects;
      if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1)
        { rect = rects[bias == "right" ? rects.length - 1 : 0]; }
      else
        { rect = node.getBoundingClientRect(); }
    }
    if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) {
      var rSpan = node.parentNode.getClientRects()[0];
      if (rSpan)
        { rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom}; }
      else
        { rect = nullRect; }
    }

    var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top;
    var mid = (rtop + rbot) / 2;
    var heights = prepared.view.measure.heights;
    var i = 0;
    for (; i < heights.length - 1; i++)
      { if (mid < heights[i]) { break } }
    var top = i ? heights[i - 1] : 0, bot = heights[i];
    var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left,
                  right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left,
                  top: top, bottom: bot};
    if (!rect.left && !rect.right) { result.bogus = true; }
    if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot; }

    return result
  }

  // Work around problem with bounding client rects on ranges being
  // returned incorrectly when zoomed on IE10 and below.
  function maybeUpdateRectForZooming(measure, rect) {
    if (!window.screen || screen.logicalXDPI == null ||
        screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure))
      { return rect }
    var scaleX = screen.logicalXDPI / screen.deviceXDPI;
    var scaleY = screen.logicalYDPI / screen.deviceYDPI;
    return {left: rect.left * scaleX, right: rect.right * scaleX,
            top: rect.top * scaleY, bottom: rect.bottom * scaleY}
  }

  function clearLineMeasurementCacheFor(lineView) {
    if (lineView.measure) {
      lineView.measure.cache = {};
      lineView.measure.heights = null;
      if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)
        { lineView.measure.caches[i] = {}; } }
    }
  }

  function clearLineMeasurementCache(cm) {
    cm.display.externalMeasure = null;
    removeChildren(cm.display.lineMeasure);
    for (var i = 0; i < cm.display.view.length; i++)
      { clearLineMeasurementCacheFor(cm.display.view[i]); }
  }

  function clearCaches(cm) {
    clearLineMeasurementCache(cm);
    cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null;
    if (!cm.options.lineWrapping) { cm.display.maxLineChanged = true; }
    cm.display.lineNumChars = null;
  }

  function pageScrollX() {
    // Work around https://bugs.chromium.org/p/chromium/issues/detail?id=489206
    // which causes page_Offset and bounding client rects to use
    // different reference viewports and invalidate our calculations.
    if (chrome && android) { return -(document.body.getBoundingClientRect().left - parseInt(getComputedStyle(document.body).marginLeft)) }
    return window.pageXOffset || (document.documentElement || document.body).scrollLeft
  }
  function pageScrollY() {
    if (chrome && android) { return -(document.body.getBoundingClientRect().top - parseInt(getComputedStyle(document.body).marginTop)) }
    return window.pageYOffset || (document.documentElement || document.body).scrollTop
  }

  function widgetTopHeight(lineObj) {
    var height = 0;
    if (lineObj.widgets) { for (var i = 0; i < lineObj.widgets.length; ++i) { if (lineObj.widgets[i].above)
      { height += widgetHeight(lineObj.widgets[i]); } } }
    return height
  }

  // Converts a {top, bottom, left, right} box from line-local
  // coordinates into another coordinate system. Context may be one of
  // "line", "div" (display.lineDiv), "local"./null (editor), "window",
  // or "page".
  function intoCoordSystem(cm, lineObj, rect, context, includeWidgets) {
    if (!includeWidgets) {
      var height = widgetTopHeight(lineObj);
      rect.top += height; rect.bottom += height;
    }
    if (context == "line") { return rect }
    if (!context) { context = "local"; }
    var yOff = heightAtLine(lineObj);
    if (context == "local") { yOff += paddingTop(cm.display); }
    else { yOff -= cm.display.viewOffset; }
    if (context == "page" || context == "window") {
      var lOff = cm.display.lineSpace.getBoundingClientRect();
      yOff += lOff.top + (context == "window" ? 0 : pageScrollY());
      var xOff = lOff.left + (context == "window" ? 0 : pageScrollX());
      rect.left += xOff; rect.right += xOff;
    }
    rect.top += yOff; rect.bottom += yOff;
    return rect
  }

  // Coverts a box from "div" coords to another coordinate system.
  // Context may be "window", "page", "div", or "local"./null.
  function fromCoordSystem(cm, coords, context) {
    if (context == "div") { return coords }
    var left = coords.left, top = coords.top;
    // First move into "page" coordinate system
    if (context == "page") {
      left -= pageScrollX();
      top -= pageScrollY();
    } else if (context == "local" || !context) {
      var localBox = cm.display.sizer.getBoundingClientRect();
      left += localBox.left;
      top += localBox.top;
    }

    var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect();
    return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top}
  }

  function charCoords(cm, pos, context, lineObj, bias) {
    if (!lineObj) { lineObj = getLine(cm.doc, pos.line); }
    return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context)
  }

  // Returns a box for a given cursor position, which may have an
  // 'other' property containing the position of the secondary cursor
  // on a bidi boundary.
  // A cursor Pos(line, char, "before") is on the same visual line as `char - 1`
  // and after `char - 1` in writing order of `char - 1`
  // A cursor Pos(line, char, "after") is on the same visual line as `char`
  // and before `char` in writing order of `char`
  // Examples (upper-case letters are RTL, lower-case are LTR):
  //     Pos(0, 1, ...)
  //     before   after
  // ab     a|b     a|b
  // aB     a|B     aB|
  // Ab     |Ab     A|b
  // AB     B|A     B|A
  // Every position after the last character on a line is considered to stick
  // to the last character on the line.
  function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) {
    lineObj = lineObj || getLine(cm.doc, pos.line);
    if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); }
    function get(ch, right) {
      var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight);
      if (right) { m.left = m.right; } else { m.right = m.left; }
      return intoCoordSystem(cm, lineObj, m, context)
    }
    var order = getOrder(lineObj, cm.doc.direction), ch = pos.ch, sticky = pos.sticky;
    if (ch >= lineObj.text.length) {
      ch = lineObj.text.length;
      sticky = "before";
    } else if (ch <= 0) {
      ch = 0;
      sticky = "after";
    }
    if (!order) { return get(sticky == "before" ? ch - 1 : ch, sticky == "before") }

    function getBidi(ch, partPos, invert) {
      var part = order[partPos], right = part.level == 1;
      return get(invert ? ch - 1 : ch, right != invert)
    }
    var partPos = getBidiPartAt(order, ch, sticky);
    var other = bidiOther;
    var val = getBidi(ch, partPos, sticky == "before");
    if (other != null) { val.other = getBidi(ch, other, sticky != "before"); }
    return val
  }

  // Used to cheaply estimate the coordinates for a position. Used for
  // intermediate scroll updates.
  function estimateCoords(cm, pos) {
    var left = 0;
    pos = clipPos(cm.doc, pos);
    if (!cm.options.lineWrapping) { left = charWidth(cm.display) * pos.ch; }
    var lineObj = getLine(cm.doc, pos.line);
    var top = heightAtLine(lineObj) + paddingTop(cm.display);
    return {left: left, right: left, top: top, bottom: top + lineObj.height}
  }

  // Positions returned by coordsChar contain some extra information.
  // xRel is the relative x position of the input coordinates compared
  // to the found position (so xRel > 0 means the coordinates are to
  // the right of the character position, for example). When outside
  // is true, that means the coordinates lie outside the line's
  // vertical range.
  function PosWithInfo(line, ch, sticky, outside, xRel) {
    var pos = Pos(line, ch, sticky);
    pos.xRel = xRel;
    if (outside) { pos.outside = outside; }
    return pos
  }

  // Compute the character position closest to the given coordinates.
  // Input must be lineSpace-local ("div" coordinate system).
  function coordsChar(cm, x, y) {
    var doc = cm.doc;
    y += cm.display.viewOffset;
    if (y < 0) { return PosWithInfo(doc.first, 0, null, -1, -1) }
    var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1;
    if (lineN > last)
      { return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, null, 1, 1) }
    if (x < 0) { x = 0; }

    var lineObj = getLine(doc, lineN);
    for (;;) {
      var found = coordsCharInner(cm, lineObj, lineN, x, y);
      var collapsed = collapsedSpanAround(lineObj, found.ch + (found.xRel > 0 || found.outside > 0 ? 1 : 0));
      if (!collapsed) { return found }
      var rangeEnd = collapsed.find(1);
      if (rangeEnd.line == lineN) { return rangeEnd }
      lineObj = getLine(doc, lineN = rangeEnd.line);
    }
  }

  function wrappedLineExtent(cm, lineObj, preparedMeasure, y) {
    y -= widgetTopHeight(lineObj);
    var end = lineObj.text.length;
    var begin = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch - 1).bottom <= y; }, end, 0);
    end = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch).top > y; }, begin, end);
    return {begin: begin, end: end}
  }

  function wrappedLineExtentChar(cm, lineObj, preparedMeasure, target) {
    if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); }
    var targetTop = intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, target), "line").top;
    return wrappedLineExtent(cm, lineObj, preparedMeasure, targetTop)
  }

  // Returns true if the given side of a box is after the given
  // coordinates, in top-to-bottom, left-to-right order.
  function boxIsAfter(box, x, y, left) {
    return box.bottom <= y ? false : box.top > y ? true : (left ? box.left : box.right) > x
  }

  function coordsCharInner(cm, lineObj, lineNo, x, y) {
    // Move y into line-local coordinate space
    y -= heightAtLine(lineObj);
    var preparedMeasure = prepareMeasureForLine(cm, lineObj);
    // When directly calling `measureCharPrepared`, we have to adjust
    // for the widgets at this line.
    var widgetHeight = widgetTopHeight(lineObj);
    var begin = 0, end = lineObj.text.length, ltr = true;

    var order = getOrder(lineObj, cm.doc.direction);
    // If the line isn't plain left-to-right text, first figure out
    // which bidi section the coordinates fall into.
    if (order) {
      var part = (cm.options.lineWrapping ? coordsBidiPartWrapped : coordsBidiPart)
                   (cm, lineObj, lineNo, preparedMeasure, order, x, y);
      ltr = part.level != 1;
      // The awkward -1 offsets are needed because findFirst (called
      // on these below) will treat its first bound as inclusive,
      // second as exclusive, but we want to actually address the
      // characters in the part's range
      begin = ltr ? part.from : part.to - 1;
      end = ltr ? part.to : part.from - 1;
    }

    // A binary search to find the first character whose bounding box
    // starts after the coordinates. If we run across any whose box wrap
    // the coordinates, store that.
    var chAround = null, boxAround = null;
    var ch = findFirst(function (ch) {
      var box = measureCharPrepared(cm, preparedMeasure, ch);
      box.top += widgetHeight; box.bottom += widgetHeight;
      if (!boxIsAfter(box, x, y, false)) { return false }
      if (box.top <= y && box.left <= x) {
        chAround = ch;
        boxAround = box;
      }
      return true
    }, begin, end);

    var baseX, sticky, outside = false;
    // If a box around the coordinates was found, use that
    if (boxAround) {
      // Distinguish coordinates nearer to the left or right side of the box
      var atLeft = x - boxAround.left < boxAround.right - x, atStart = atLeft == ltr;
      ch = chAround + (atStart ? 0 : 1);
      sticky = atStart ? "after" : "before";
      baseX = atLeft ? boxAround.left : boxAround.right;
    } else {
      // (Adjust for extended bound, if necessary.)
      if (!ltr && (ch == end || ch == begin)) { ch++; }
      // To determine which side to associate with, get the box to the
      // left of the character and compare it's vertical position to the
      // coordinates
      sticky = ch == 0 ? "after" : ch == lineObj.text.length ? "before" :
        (measureCharPrepared(cm, preparedMeasure, ch - (ltr ? 1 : 0)).bottom + widgetHeight <= y) == ltr ?
        "after" : "before";
      // Now get accurate coordinates for this place, in order to get a
      // base X position
      var coords = cursorCoords(cm, Pos(lineNo, ch, sticky), "line", lineObj, preparedMeasure);
      baseX = coords.left;
      outside = y < coords.top ? -1 : y >= coords.bottom ? 1 : 0;
    }

    ch = skipExtendingChars(lineObj.text, ch, 1);
    return PosWithInfo(lineNo, ch, sticky, outside, x - baseX)
  }

  function coordsBidiPart(cm, lineObj, lineNo, preparedMeasure, order, x, y) {
    // Bidi parts are sorted left-to-right, and in a non-line-wrapping
    // situation, we can take this ordering to correspond to the visual
    // ordering. This finds the first part whose end is after the given
    // coordinates.
    var index = findFirst(function (i) {
      var part = order[i], ltr = part.level != 1;
      return boxIsAfter(cursorCoords(cm, Pos(lineNo, ltr ? part.to : part.from, ltr ? "before" : "after"),
                                     "line", lineObj, preparedMeasure), x, y, true)
    }, 0, order.length - 1);
    var part = order[index];
    // If this isn't the first part, the part's start is also after
    // the coordinates, and the coordinates aren't on the same line as
    // that start, move one part back.
    if (index > 0) {
      var ltr = part.level != 1;
      var start = cursorCoords(cm, Pos(lineNo, ltr ? part.from : part.to, ltr ? "after" : "before"),
                               "line", lineObj, preparedMeasure);
      if (boxIsAfter(start, x, y, true) && start.top > y)
        { part = order[index - 1]; }
    }
    return part
  }

  function coordsBidiPartWrapped(cm, lineObj, _lineNo, preparedMeasure, order, x, y) {
    // In a wrapped line, rtl text on wrapping boundaries can do things
    // that don't correspond to the ordering in our `order` array at
    // all, so a binary search doesn't work, and we want to return a
    // part that only spans one line so that the binary search in
    // coordsCharInner is safe. As such, we first find the extent of the
    // wrapped line, and then do a flat search in which we discard any
    // spans that aren't on the line.
    var ref = wrappedLineExtent(cm, lineObj, preparedMeasure, y);
    var begin = ref.begin;
    var end = ref.end;
    if (/\s/.test(lineObj.text.charAt(end - 1))) { end--; }
    var part = null, closestDist = null;
    for (var i = 0; i < order.length; i++) {
      var p = order[i];
      if (p.from >= end || p.to <= begin) { continue }
      var ltr = p.level != 1;
      var endX = measureCharPrepared(cm, preparedMeasure, ltr ? Math.min(end, p.to) - 1 : Math.max(begin, p.from)).right;
      // Weigh against spans ending before this, so that they are only
      // picked if nothing ends after
      var dist = endX < x ? x - endX + 1e9 : endX - x;
      if (!part || closestDist > dist) {
        part = p;
        closestDist = dist;
      }
    }
    if (!part) { part = order[order.length - 1]; }
    // Clip the part to the wrapped line.
    if (part.from < begin) { part = {from: begin, to: part.to, level: part.level}; }
    if (part.to > end) { part = {from: part.from, to: end, level: part.level}; }
    return part
  }

  var measureText;
  // Compute the default text height.
  function textHeight(display) {
    if (display.cachedTextHeight != null) { return display.cachedTextHeight }
    if (measureText == null) {
      measureText = elt("pre", null, "CodeMirror-line-like");
      // Measure a bunch of lines, for browsers that compute
      // fractional heights.
      for (var i = 0; i < 49; ++i) {
        measureText.appendChild(document.createTextNode("x"));
        measureText.appendChild(elt("br"));
      }
      measureText.appendChild(document.createTextNode("x"));
    }
    removeChildrenAndAdd(display.measure, measureText);
    var height = measureText.offsetHeight / 50;
    if (height > 3) { display.cachedTextHeight = height; }
    removeChildren(display.measure);
    return height || 1
  }

  // Compute the default character width.
  function charWidth(display) {
    if (display.cachedCharWidth != null) { return display.cachedCharWidth }
    var anchor = elt("span", "xxxxxxxxxx");
    var pre = elt("pre", [anchor], "CodeMirror-line-like");
    removeChildrenAndAdd(display.measure, pre);
    var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10;
    if (width > 2) { display.cachedCharWidth = width; }
    return width || 10
  }

  // Do a bulk-read of the DOM positions and sizes needed to draw the
  // view, so that we don't interleave reading and writing to the DOM.
  function getDimensions(cm) {
    var d = cm.display, left = {}, width = {};
    var gutterLeft = d.gutters.clientLeft;
    for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {
      var id = cm.display.gutterSpecs[i].className;
      left[id] = n.offsetLeft + n.clientLeft + gutterLeft;
      width[id] = n.clientWidth;
    }
    return {fixedPos: compensateForHScroll(d),
            gutterTotalWidth: d.gutters.offsetWidth,
            gutterLeft: left,
            gutterWidth: width,
            wrapperWidth: d.wrapper.clientWidth}
  }

  // Computes display.scroller.scrollLeft + display.gutters.offsetWidth,
  // but using getBoundingClientRect to get a sub-pixel-accurate
  // result.
  function compensateForHScroll(display) {
    return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left
  }

  // Returns a function that estimates the height of a line, to use as
  // first approximation until the line becomes visible (and is thus
  // properly measurable).
  function estimateHeight(cm) {
    var th = textHeight(cm.display), wrapping = cm.options.lineWrapping;
    var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3);
    return function (line) {
      if (lineIsHidden(cm.doc, line)) { return 0 }

      var widgetsHeight = 0;
      if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) {
        if (line.widgets[i].height) { widgetsHeight += line.widgets[i].height; }
      } }

      if (wrapping)
        { return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th }
      else
        { return widgetsHeight + th }
    }
  }

  function estimateLineHeights(cm) {
    var doc = cm.doc, est = estimateHeight(cm);
    doc.iter(function (line) {
      var estHeight = est(line);
      if (estHeight != line.height) { updateLineHeight(line, estHeight); }
    });
  }

  // Given a mouse event, find the corresponding position. If liberal
  // is false, it checks whether a gutter or scrollbar was clicked,
  // and returns null if it was. forRect is used by rectangular
  // selections, and tries to estimate a character position even for
  // coordinates beyond the right of the text.
  function posFromMouse(cm, e, liberal, forRect) {
    var display = cm.display;
    if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") { return null }

    var x, y, space = display.lineSpace.getBoundingClientRect();
    // Fails unpredictably on IE[67] when mouse is dragged around quickly.
    try { x = e.clientX - space.left; y = e.clientY - space.top; }
    catch (e$1) { return null }
    var coords = coordsChar(cm, x, y), line;
    if (forRect && coords.xRel > 0 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {
      var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length;
      coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff));
    }
    return coords
  }

  // Find the view element corresponding to a given line. Return null
  // when the line isn't visible.
  function findViewIndex(cm, n) {
    if (n >= cm.display.viewTo) { return null }
    n -= cm.display.viewFrom;
    if (n < 0) { return null }
    var view = cm.display.view;
    for (var i = 0; i < view.length; i++) {
      n -= view[i].size;
      if (n < 0) { return i }
    }
  }

  // Updates the display.view data structure for a given change to the
  // document. From and to are in pre-change coordinates. Lendiff is
  // the amount of lines added or subtracted by the change. This is
  // used for changes that span multiple lines, or change the way
  // lines are divided into visual lines. regLineChange (below)
  // registers single-line changes.
  function regChange(cm, from, to, lendiff) {
    if (from == null) { from = cm.doc.first; }
    if (to == null) { to = cm.doc.first + cm.doc.size; }
    if (!lendiff) { lendiff = 0; }

    var display = cm.display;
    if (lendiff && to < display.viewTo &&
        (display.updateLineNumbers == null || display.updateLineNumbers > from))
      { display.updateLineNumbers = from; }

    cm.curOp.viewChanged = true;

    if (from >= display.viewTo) { // Change after
      if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo)
        { resetView(cm); }
    } else if (to <= display.viewFrom) { // Change before
      if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) {
        resetView(cm);
      } else {
        display.viewFrom += lendiff;
        display.viewTo += lendiff;
      }
    } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap
      resetView(cm);
    } else if (from <= display.viewFrom) { // Top overlap
      var cut = viewCuttingPoint(cm, to, to + lendiff, 1);
      if (cut) {
        display.view = display.view.slice(cut.index);
        display.viewFrom = cut.lineN;
        display.viewTo += lendiff;
      } else {
        resetView(cm);
      }
    } else if (to >= display.viewTo) { // Bottom overlap
      var cut$1 = viewCuttingPoint(cm, from, from, -1);
      if (cut$1) {
        display.view = display.view.slice(0, cut$1.index);
        display.viewTo = cut$1.lineN;
      } else {
        resetView(cm);
      }
    } else { // Gap in the middle
      var cutTop = viewCuttingPoint(cm, from, from, -1);
      var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1);
      if (cutTop && cutBot) {
        display.view = display.view.slice(0, cutTop.index)
          .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN))
          .concat(display.view.slice(cutBot.index));
        display.viewTo += lendiff;
      } else {
        resetView(cm);
      }
    }

    var ext = display.externalMeasured;
    if (ext) {
      if (to < ext.lineN)
        { ext.lineN += lendiff; }
      else if (from < ext.lineN + ext.size)
        { display.externalMeasured = null; }
    }
  }

  // Register a change to a single line. Type must be one of "text",
  // "gutter", "class", "widget"
  function regLineChange(cm, line, type) {
    cm.curOp.viewChanged = true;
    var display = cm.display, ext = cm.display.externalMeasured;
    if (ext && line >= ext.lineN && line < ext.lineN + ext.size)
      { display.externalMeasured = null; }

    if (line < display.viewFrom || line >= display.viewTo) { return }
    var lineView = display.view[findViewIndex(cm, line)];
    if (lineView.node == null) { return }
    var arr = lineView.changes || (lineView.changes = []);
    if (indexOf(arr, type) == -1) { arr.push(type); }
  }

  // Clear the view.
  function resetView(cm) {
    cm.display.viewFrom = cm.display.viewTo = cm.doc.first;
    cm.display.view = [];
    cm.display.viewOffset = 0;
  }

  function viewCuttingPoint(cm, oldN, newN, dir) {
    var index = findViewIndex(cm, oldN), diff, view = cm.display.view;
    if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size)
      { return {index: index, lineN: newN} }
    var n = cm.display.viewFrom;
    for (var i = 0; i < index; i++)
      { n += view[i].size; }
    if (n != oldN) {
      if (dir > 0) {
        if (index == view.length - 1) { return null }
        diff = (n + view[index].size) - oldN;
        index++;
      } else {
        diff = n - oldN;
      }
      oldN += diff; newN += diff;
    }
    while (visualLineNo(cm.doc, newN) != newN) {
      if (index == (dir < 0 ? 0 : view.length - 1)) { return null }
      newN += dir * view[index - (dir < 0 ? 1 : 0)].size;
      index += dir;
    }
    return {index: index, lineN: newN}
  }

  // Force the view to cover a given range, adding empty view element
  // or clipping off existing ones as needed.
  function adjustView(cm, from, to) {
    var display = cm.display, view = display.view;
    if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) {
      display.view = buildViewArray(cm, from, to);
      display.viewFrom = from;
    } else {
      if (display.viewFrom > from)
        { display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view); }
      else if (display.viewFrom < from)
        { display.view = display.view.slice(findViewIndex(cm, from)); }
      display.viewFrom = from;
      if (display.viewTo < to)
        { display.view = display.view.concat(buildViewArray(cm, display.viewTo, to)); }
      else if (display.viewTo > to)
        { display.view = display.view.slice(0, findViewIndex(cm, to)); }
    }
    display.viewTo = to;
  }

  // Count the number of lines in the view whose DOM representation is
  // out of date (or nonexistent).
  function countDirtyView(cm) {
    var view = cm.display.view, dirty = 0;
    for (var i = 0; i < view.length; i++) {
      var lineView = view[i];
      if (!lineView.hidden && (!lineView.node || lineView.changes)) { ++dirty; }
    }
    return dirty
  }

  function updateSelection(cm) {
    cm.display.input.showSelection(cm.display.input.prepareSelection());
  }

  function prepareSelection(cm, primary) {
    if ( primary === void 0 ) primary = true;

    var doc = cm.doc, result = {};
    var curFragment = result.cursors = document.createDocumentFragment();
    var selFragment = result.selection = document.createDocumentFragment();

    for (var i = 0; i < doc.sel.ranges.length; i++) {
      if (!primary && i == doc.sel.primIndex) { continue }
      var range = doc.sel.ranges[i];
      if (range.from().line >= cm.display.viewTo || range.to().line < cm.display.viewFrom) { continue }
      var collapsed = range.empty();
      if (collapsed || cm.options.showCursorWhenSelecting)
        { drawSelectionCursor(cm, range.head, curFragment); }
      if (!collapsed)
        { drawSelectionRange(cm, range, selFragment); }
    }
    return result
  }

  // Draws a cursor for the given range
  function drawSelectionCursor(cm, head, output) {
    var pos = cursorCoords(cm, head, "div", null, null, !cm.options.singleCursorHeightPerLine);

    var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor"));
    cursor.style.left = pos.left + "px";
    cursor.style.top = pos.top + "px";
    cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px";

    if (pos.other) {
      // Secondary cursor, shown when on a 'jump' in bi-directional text
      var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor"));
      otherCursor.style.display = "";
      otherCursor.style.left = pos.other.left + "px";
      otherCursor.style.top = pos.other.top + "px";
      otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px";
    }
  }

  function cmpCoords(a, b) { return a.top - b.top || a.left - b.left }

  // Draws the given range as a highlighted selection
  function drawSelectionRange(cm, range, output) {
    var display = cm.display, doc = cm.doc;
    var fragment = document.createDocumentFragment();
    var padding = paddingH(cm.display), leftSide = padding.left;
    var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right;
    var docLTR = doc.direction == "ltr";

    function add(left, top, width, bottom) {
      if (top < 0) { top = 0; }
      top = Math.round(top);
      bottom = Math.round(bottom);
      fragment.appendChild(elt("div", null, "CodeMirror-selected", ("position: absolute; left: " + left + "px;\n                             top: " + top + "px; width: " + (width == null ? rightSide - left : width) + "px;\n                             height: " + (bottom - top) + "px")));
    }

    function drawForLine(line, fromArg, toArg) {
      var lineObj = getLine(doc, line);
      var lineLen = lineObj.text.length;
      var start, end;
      function coords(ch, bias) {
        return charCoords(cm, Pos(line, ch), "div", lineObj, bias)
      }

      function wrapX(pos, dir, side) {
        var extent = wrappedLineExtentChar(cm, lineObj, null, pos);
        var prop = (dir == "ltr") == (side == "after") ? "left" : "right";
        var ch = side == "after" ? extent.begin : extent.end - (/\s/.test(lineObj.text.charAt(extent.end - 1)) ? 2 : 1);
        return coords(ch, prop)[prop]
      }

      var order = getOrder(lineObj, doc.direction);
      iterateBidiSections(order, fromArg || 0, toArg == null ? lineLen : toArg, function (from, to, dir, i) {
        var ltr = dir == "ltr";
        var fromPos = coords(from, ltr ? "left" : "right");
        var toPos = coords(to - 1, ltr ? "right" : "left");

        var openStart = fromArg == null && from == 0, openEnd = toArg == null && to == lineLen;
        var first = i == 0, last = !order || i == order.length - 1;
        if (toPos.top - fromPos.top <= 3) { // Single line
          var openLeft = (docLTR ? openStart : openEnd) && first;
          var openRight = (docLTR ? openEnd : openStart) && last;
          var left = openLeft ? leftSide : (ltr ? fromPos : toPos).left;
          var right = openRight ? rightSide : (ltr ? toPos : fromPos).right;
          add(left, fromPos.top, right - left, fromPos.bottom);
        } else { // Multiple lines
          var topLeft, topRight, botLeft, botRight;
          if (ltr) {
            topLeft = docLTR && openStart && first ? leftSide : fromPos.left;
            topRight = docLTR ? rightSide : wrapX(from, dir, "before");
            botLeft = docLTR ? leftSide : wrapX(to, dir, "after");
            botRight = docLTR && openEnd && last ? rightSide : toPos.right;
          } else {
            topLeft = !docLTR ? leftSide : wrapX(from, dir, "before");
            topRight = !docLTR && openStart && first ? rightSide : fromPos.right;
            botLeft = !docLTR && openEnd && last ? leftSide : toPos.left;
            botRight = !docLTR ? rightSide : wrapX(to, dir, "after");
          }
          add(topLeft, fromPos.top, topRight - topLeft, fromPos.bottom);
          if (fromPos.bottom < toPos.top) { add(leftSide, fromPos.bottom, null, toPos.top); }
          add(botLeft, toPos.top, botRight - botLeft, toPos.bottom);
        }

        if (!start || cmpCoords(fromPos, start) < 0) { start = fromPos; }
        if (cmpCoords(toPos, start) < 0) { start = toPos; }
        if (!end || cmpCoords(fromPos, end) < 0) { end = fromPos; }
        if (cmpCoords(toPos, end) < 0) { end = toPos; }
      });
      return {start: start, end: end}
    }

    var sFrom = range.from(), sTo = range.to();
    if (sFrom.line == sTo.line) {
      drawForLine(sFrom.line, sFrom.ch, sTo.ch);
    } else {
      var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line);
      var singleVLine = visualLine(fromLine) == visualLine(toLine);
      var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end;
      var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start;
      if (singleVLine) {
        if (leftEnd.top < rightStart.top - 2) {
          add(leftEnd.right, leftEnd.top, null, leftEnd.bottom);
          add(leftSide, rightStart.top, rightStart.left, rightStart.bottom);
        } else {
          add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom);
        }
      }
      if (leftEnd.bottom < rightStart.top)
        { add(leftSide, leftEnd.bottom, null, rightStart.top); }
    }

    output.appendChild(fragment);
  }

  // Cursor-blinking
  function restartBlink(cm) {
    if (!cm.state.focused) { return }
    var display = cm.display;
    clearInterval(display.blinker);
    var on = true;
    display.cursorDiv.style.visibility = "";
    if (cm.options.cursorBlinkRate > 0)
      { display.blinker = setInterval(function () {
        if (!cm.hasFocus()) { onBlur(cm); }
        display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden";
      }, cm.options.cursorBlinkRate); }
    else if (cm.options.cursorBlinkRate < 0)
      { display.cursorDiv.style.visibility = "hidden"; }
  }

  function ensureFocus(cm) {
    if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm); }
  }

  function delayBlurEvent(cm) {
    cm.state.delayingBlurEvent = true;
    setTimeout(function () { if (cm.state.delayingBlurEvent) {
      cm.state.delayingBlurEvent = false;
      onBlur(cm);
    } }, 100);
  }

  function onFocus(cm, e) {
    if (cm.state.delayingBlurEvent) { cm.state.delayingBlurEvent = false; }

    if (cm.options.readOnly == "nocursor") { return }
    if (!cm.state.focused) {
      signal(cm, "focus", cm, e);
      cm.state.focused = true;
      addClass(cm.display.wrapper, "CodeMirror-focused");
      // This test prevents this from firing when a context
      // menu is closed (since the input reset would kill the
      // select-all detection hack)
      if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) {
        cm.display.input.reset();
        if (webkit) { setTimeout(function () { return cm.display.input.reset(true); }, 20); } // Issue #1730
      }
      cm.display.input.receivedFocus();
    }
    restartBlink(cm);
  }
  function onBlur(cm, e) {
    if (cm.state.delayingBlurEvent) { return }

    if (cm.state.focused) {
      signal(cm, "blur", cm, e);
      cm.state.focused = false;
      rmClass(cm.display.wrapper, "CodeMirror-focused");
    }
    clearInterval(cm.display.blinker);
    setTimeout(function () { if (!cm.state.focused) { cm.display.shift = false; } }, 150);
  }

  // Read the actual heights of the rendered lines, and update their
  // stored heights to match.
  function updateHeightsInViewport(cm) {
    var display = cm.display;
    var prevBottom = display.lineDiv.offsetTop;
    for (var i = 0; i < display.view.length; i++) {
      var cur = display.view[i], wrapping = cm.options.lineWrapping;
      var height = (void 0), width = 0;
      if (cur.hidden) { continue }
      if (ie && ie_version < 8) {
        var bot = cur.node.offsetTop + cur.node.offsetHeight;
        height = bot - prevBottom;
        prevBottom = bot;
      } else {
        var box = cur.node.getBoundingClientRect();
        height = box.bottom - box.top;
        // Check that lines don't extend past the right of the current
        // editor width
        if (!wrapping && cur.text.firstChild)
          { width = cur.text.firstChild.getBoundingClientRect().right - box.left - 1; }
      }
      var diff = cur.line.height - height;
      if (diff > .005 || diff < -.005) {
        updateLineHeight(cur.line, height);
        updateWidgetHeight(cur.line);
        if (cur.rest) { for (var j = 0; j < cur.rest.length; j++)
          { updateWidgetHeight(cur.rest[j]); } }
      }
      if (width > cm.display.sizerWidth) {
        var chWidth = Math.ceil(width / charWidth(cm.display));
        if (chWidth > cm.display.maxLineLength) {
          cm.display.maxLineLength = chWidth;
          cm.display.maxLine = cur.line;
          cm.display.maxLineChanged = true;
        }
      }
    }
  }

  // Read and store the height of line widgets associated with the
  // given line.
  function updateWidgetHeight(line) {
    if (line.widgets) { for (var i = 0; i < line.widgets.length; ++i) {
      var w = line.widgets[i], parent = w.node.parentNode;
      if (parent) { w.height = parent.offsetHeight; }
    } }
  }

  // Compute the lines that are visible in a given viewport (defaults
  // the the current scroll position). viewport may contain top,
  // height, and ensure (see op.scrollToPos) properties.
  function visibleLines(display, doc, viewport) {
    var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop;
    top = Math.floor(top - paddingTop(display));
    var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight;

    var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom);
    // Ensure is a {from: {line, ch}, to: {line, ch}} object, and
    // forces those lines into the viewport (if possible).
    if (viewport && viewport.ensure) {
      var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line;
      if (ensureFrom < from) {
        from = ensureFrom;
        to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight);
      } else if (Math.min(ensureTo, doc.lastLine()) >= to) {
        from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight);
        to = ensureTo;
      }
    }
    return {from: from, to: Math.max(to, from + 1)}
  }

  // SCROLLING THINGS INTO VIEW

  // If an editor sits on the top or bottom of the window, partially
  // scrolled out of view, this ensures that the cursor is visible.
  function maybeScrollWindow(cm, rect) {
    if (signalDOMEvent(cm, "scrollCursorIntoView")) { return }

    var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null;
    if (rect.top + box.top < 0) { doScroll = true; }
    else if (rect.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) { doScroll = false; }
    if (doScroll != null && !phantom) {
      var scrollNode = elt("div", "\u200b", null, ("position: absolute;\n                         top: " + (rect.top - display.viewOffset - paddingTop(cm.display)) + "px;\n                         height: " + (rect.bottom - rect.top + scrollGap(cm) + display.barHeight) + "px;\n                         left: " + (rect.left) + "px; width: " + (Math.max(2, rect.right - rect.left)) + "px;"));
      cm.display.lineSpace.appendChild(scrollNode);
      scrollNode.scrollIntoView(doScroll);
      cm.display.lineSpace.removeChild(scrollNode);
    }
  }

  // Scroll a given position into view (immediately), verifying that
  // it actually became visible (as line heights are accurately
  // measured, the position of something may 'drift' during drawing).
  function scrollPosIntoView(cm, pos, end, margin) {
    if (margin == null) { margin = 0; }
    var rect;
    if (!cm.options.lineWrapping && pos == end) {
      // Set pos and end to the cursor positions around the character pos sticks to
      // If pos.sticky == "before", that is around pos.ch - 1, otherwise around pos.ch
      // If pos == Pos(_, 0, "before"), pos and end are unchanged
      pos = pos.ch ? Pos(pos.line, pos.sticky == "before" ? pos.ch - 1 : pos.ch, "after") : pos;
      end = pos.sticky == "before" ? Pos(pos.line, pos.ch + 1, "before") : pos;
    }
    for (var limit = 0; limit < 5; limit++) {
      var changed = false;
      var coords = cursorCoords(cm, pos);
      var endCoords = !end || end == pos ? coords : cursorCoords(cm, end);
      rect = {left: Math.min(coords.left, endCoords.left),
              top: Math.min(coords.top, endCoords.top) - margin,
              right: Math.max(coords.left, endCoords.left),
              bottom: Math.max(coords.bottom, endCoords.bottom) + margin};
      var scrollPos = calculateScrollPos(cm, rect);
      var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft;
      if (scrollPos.scrollTop != null) {
        updateScrollTop(cm, scrollPos.scrollTop);
        if (Math.abs(cm.doc.scrollTop - startTop) > 1) { changed = true; }
      }
      if (scrollPos.scrollLeft != null) {
        setScrollLeft(cm, scrollPos.scrollLeft);
        if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) { changed = true; }
      }
      if (!changed) { break }
    }
    return rect
  }

  // Scroll a given set of coordinates into view (immediately).
  function scrollIntoView(cm, rect) {
    var scrollPos = calculateScrollPos(cm, rect);
    if (scrollPos.scrollTop != null) { updateScrollTop(cm, scrollPos.scrollTop); }
    if (scrollPos.scrollLeft != null) { setScrollLeft(cm, scrollPos.scrollLeft); }
  }

  // Calculate a new scroll position needed to scroll the given
  // rectangle into view. Returns an object with scrollTop and
  // scrollLeft properties. When these are undefined, the
  // vertical/horizontal position does not need to be adjusted.
  function calculateScrollPos(cm, rect) {
    var display = cm.display, snapMargin = textHeight(cm.display);
    if (rect.top < 0) { rect.top = 0; }
    var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop;
    var screen = displayHeight(cm), result = {};
    if (rect.bottom - rect.top > screen) { rect.bottom = rect.top + screen; }
    var docBottom = cm.doc.height + paddingVert(display);
    var atTop = rect.top < snapMargin, atBottom = rect.bottom > docBottom - snapMargin;
    if (rect.top < screentop) {
      result.scrollTop = atTop ? 0 : rect.top;
    } else if (rect.bottom > screentop + screen) {
      var newTop = Math.min(rect.top, (atBottom ? docBottom : rect.bottom) - screen);
      if (newTop != screentop) { result.scrollTop = newTop; }
    }

    var gutterSpace = cm.options.fixedGutter ? 0 : display.gutters.offsetWidth;
    var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft - gutterSpace;
    var screenw = displayWidth(cm) - display.gutters.offsetWidth;
    var tooWide = rect.right - rect.left > screenw;
    if (tooWide) { rect.right = rect.left + screenw; }
    if (rect.left < 10)
      { result.scrollLeft = 0; }
    else if (rect.left < screenleft)
      { result.scrollLeft = Math.max(0, rect.left + gutterSpace - (tooWide ? 0 : 10)); }
    else if (rect.right > screenw + screenleft - 3)
      { result.scrollLeft = rect.right + (tooWide ? 0 : 10) - screenw; }
    return result
  }

  // Store a relative adjustment to the scroll position in the current
  // operation (to be applied when the operation finishes).
  function addToScrollTop(cm, top) {
    if (top == null) { return }
    resolveScrollToPos(cm);
    cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top;
  }

  // Make sure that at the end of the operation the current cursor is
  // shown.
  function ensureCursorVisible(cm) {
    resolveScrollToPos(cm);
    var cur = cm.getCursor();
    cm.curOp.scrollToPos = {from: cur, to: cur, margin: cm.options.cursorScrollMargin};
  }

  function scrollToCoords(cm, x, y) {
    if (x != null || y != null) { resolveScrollToPos(cm); }
    if (x != null) { cm.curOp.scrollLeft = x; }
    if (y != null) { cm.curOp.scrollTop = y; }
  }

  function scrollToRange(cm, range) {
    resolveScrollToPos(cm);
    cm.curOp.scrollToPos = range;
  }

  // When an operation has its scrollToPos property set, and another
  // scroll action is applied before the end of the operation, this
  // 'simulates' scrolling that position into view in a cheap way, so
  // that the effect of intermediate scroll commands is not ignored.
  function resolveScrollToPos(cm) {
    var range = cm.curOp.scrollToPos;
    if (range) {
      cm.curOp.scrollToPos = null;
      var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to);
      scrollToCoordsRange(cm, from, to, range.margin);
    }
  }

  function scrollToCoordsRange(cm, from, to, margin) {
    var sPos = calculateScrollPos(cm, {
      left: Math.min(from.left, to.left),
      top: Math.min(from.top, to.top) - margin,
      right: Math.max(from.right, to.right),
      bottom: Math.max(from.bottom, to.bottom) + margin
    });
    scrollToCoords(cm, sPos.scrollLeft, sPos.scrollTop);
  }

  // Sync the scrollable area and scrollbars, ensure the viewport
  // covers the visible area.
  function updateScrollTop(cm, val) {
    if (Math.abs(cm.doc.scrollTop - val) < 2) { return }
    if (!gecko) { updateDisplaySimple(cm, {top: val}); }
    setScrollTop(cm, val, true);
    if (gecko) { updateDisplaySimple(cm); }
    startWorker(cm, 100);
  }

  function setScrollTop(cm, val, forceScroll) {
    val = Math.max(0, Math.min(cm.display.scroller.scrollHeight - cm.display.scroller.clientHeight, val));
    if (cm.display.scroller.scrollTop == val && !forceScroll) { return }
    cm.doc.scrollTop = val;
    cm.display.scrollbars.setScrollTop(val);
    if (cm.display.scroller.scrollTop != val) { cm.display.scroller.scrollTop = val; }
  }

  // Sync scroller and scrollbar, ensure the gutter elements are
  // aligned.
  function setScrollLeft(cm, val, isScroller, forceScroll) {
    val = Math.max(0, Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth));
    if ((isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) && !forceScroll) { return }
    cm.doc.scrollLeft = val;
    alignHorizontally(cm);
    if (cm.display.scroller.scrollLeft != val) { cm.display.scroller.scrollLeft = val; }
    cm.display.scrollbars.setScrollLeft(val);
  }

  // SCROLLBARS

  // Prepare DOM reads needed to update the scrollbars. Done in one
  // shot to minimize update/measure roundtrips.
  function measureForScrollbars(cm) {
    var d = cm.display, gutterW = d.gutters.offsetWidth;
    var docH = Math.round(cm.doc.height + paddingVert(cm.display));
    return {
      clientHeight: d.scroller.clientHeight,
      viewHeight: d.wrapper.clientHeight,
      scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth,
      viewWidth: d.wrapper.clientWidth,
      barLeft: cm.options.fixedGutter ? gutterW : 0,
      docHeight: docH,
      scrollHeight: docH + scrollGap(cm) + d.barHeight,
      nativeBarWidth: d.nativeBarWidth,
      gutterWidth: gutterW
    }
  }

  var NativeScrollbars = function(place, scroll, cm) {
    this.cm = cm;
    var vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar");
    var horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar");
    vert.tabIndex = horiz.tabIndex = -1;
    place(vert); place(horiz);

    on(vert, "scroll", function () {
      if (vert.clientHeight) { scroll(vert.scrollTop, "vertical"); }
    });
    on(horiz, "scroll", function () {
      if (horiz.clientWidth) { scroll(horiz.scrollLeft, "horizontal"); }
    });

    this.checkedZeroWidth = false;
    // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).
    if (ie && ie_version < 8) { this.horiz.style.minHeight = this.vert.style.minWidth = "18px"; }
  };

  NativeScrollbars.prototype.update = function (measure) {
    var needsH = measure.scrollWidth > measure.clientWidth + 1;
    var needsV = measure.scrollHeight > measure.clientHeight + 1;
    var sWidth = measure.nativeBarWidth;

    if (needsV) {
      this.vert.style.display = "block";
      this.vert.style.bottom = needsH ? sWidth + "px" : "0";
      var totalHeight = measure.viewHeight - (needsH ? sWidth : 0);
      // A bug in IE8 can cause this value to be negative, so guard it.
      this.vert.firstChild.style.height =
        Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px";
    } else {
      this.vert.style.display = "";
      this.vert.firstChild.style.height = "0";
    }

    if (needsH) {
      this.horiz.style.display = "block";
      this.horiz.style.right = needsV ? sWidth + "px" : "0";
      this.horiz.style.left = measure.barLeft + "px";
      var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0);
      this.horiz.firstChild.style.width =
        Math.max(0, measure.scrollWidth - measure.clientWidth + totalWidth) + "px";
    } else {
      this.horiz.style.display = "";
      this.horiz.firstChild.style.width = "0";
    }

    if (!this.checkedZeroWidth && measure.clientHeight > 0) {
      if (sWidth == 0) { this.zeroWidthHack(); }
      this.checkedZeroWidth = true;
    }

    return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0}
  };

  NativeScrollbars.prototype.setScrollLeft = function (pos) {
    if (this.horiz.scrollLeft != pos) { this.horiz.scrollLeft = pos; }
    if (this.disableHoriz) { this.enableZeroWidthBar(this.horiz, this.disableHoriz, "horiz"); }
  };

  NativeScrollbars.prototype.setScrollTop = function (pos) {
    if (this.vert.scrollTop != pos) { this.vert.scrollTop = pos; }
    if (this.disableVert) { this.enableZeroWidthBar(this.vert, this.disableVert, "vert"); }
  };

  NativeScrollbars.prototype.zeroWidthHack = function () {
    var w = mac && !mac_geMountainLion ? "12px" : "18px";
    this.horiz.style.height = this.vert.style.width = w;
    this.horiz.style.pointerEvents = this.vert.style.pointerEvents = "none";
    this.disableHoriz = new Delayed;
    this.disableVert = new Delayed;
  };

  NativeScrollbars.prototype.enableZeroWidthBar = function (bar, delay, type) {
    bar.style.pointerEvents = "auto";
    function maybeDisable() {
      // To find out whether the scrollbar is still visible, we
      // check whether the element under the pixel in the bottom
      // right corner of the scrollbar box is the scrollbar box
      // itself (when the bar is still visible) or its filler child
      // (when the bar is hidden). If it is still visible, we keep
      // it enabled, if it's hidden, we disable pointer events.
      var box = bar.getBoundingClientRect();
      var elt = type == "vert" ? document.elementFromPoint(box.right - 1, (box.top + box.bottom) / 2)
          : document.elementFromPoint((box.right + box.left) / 2, box.bottom - 1);
      if (elt != bar) { bar.style.pointerEvents = "none"; }
      else { delay.set(1000, maybeDisable); }
    }
    delay.set(1000, maybeDisable);
  };

  NativeScrollbars.prototype.clear = function () {
    var parent = this.horiz.parentNode;
    parent.removeChild(this.horiz);
    parent.removeChild(this.vert);
  };

  var NullScrollbars = function () {};

  NullScrollbars.prototype.update = function () { return {bottom: 0, right: 0} };
  NullScrollbars.prototype.setScrollLeft = function () {};
  NullScrollbars.prototype.setScrollTop = function () {};
  NullScrollbars.prototype.clear = function () {};

  function updateScrollbars(cm, measure) {
    if (!measure) { measure = measureForScrollbars(cm); }
    var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight;
    updateScrollbarsInner(cm, measure);
    for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) {
      if (startWidth != cm.display.barWidth && cm.options.lineWrapping)
        { updateHeightsInViewport(cm); }
      updateScrollbarsInner(cm, measureForScrollbars(cm));
      startWidth = cm.display.barWidth; startHeight = cm.display.barHeight;
    }
  }

  // Re-synchronize the fake scrollbars with the actual size of the
  // content.
  function updateScrollbarsInner(cm, measure) {
    var d = cm.display;
    var sizes = d.scrollbars.update(measure);

    d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px";
    d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px";
    d.heightForcer.style.borderBottom = sizes.bottom + "px solid transparent";

    if (sizes.right && sizes.bottom) {
      d.scrollbarFiller.style.display = "block";
      d.scrollbarFiller.style.height = sizes.bottom + "px";
      d.scrollbarFiller.style.width = sizes.right + "px";
    } else { d.scrollbarFiller.style.display = ""; }
    if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) {
      d.gutterFiller.style.display = "block";
      d.gutterFiller.style.height = sizes.bottom + "px";
      d.gutterFiller.style.width = measure.gutterWidth + "px";
    } else { d.gutterFiller.style.display = ""; }
  }

  var scrollbarModel = {"native": NativeScrollbars, "null": NullScrollbars};

  function initScrollbars(cm) {
    if (cm.display.scrollbars) {
      cm.display.scrollbars.clear();
      if (cm.display.scrollbars.addClass)
        { rmClass(cm.display.wrapper, cm.display.scrollbars.addClass); }
    }

    cm.display.scrollbars = new scrollbarModel[cm.options.scrollbarStyle](function (node) {
      cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller);
      // Prevent clicks in the scrollbars from killing focus
      on(node, "mousedown", function () {
        if (cm.state.focused) { setTimeout(function () { return cm.display.input.focus(); }, 0); }
      });
      node.setAttribute("cm-not-content", "true");
    }, function (pos, axis) {
      if (axis == "horizontal") { setScrollLeft(cm, pos); }
      else { updateScrollTop(cm, pos); }
    }, cm);
    if (cm.display.scrollbars.addClass)
      { addClass(cm.display.wrapper, cm.display.scrollbars.addClass); }
  }

  // Operations are used to wrap a series of changes to the editor
  // state in such a way that each change won't have to update the
  // cursor and display (which would be awkward, slow, and
  // error-prone). Instead, display updates are batched and then all
  // combined and executed at once.

  var nextOpId = 0;
  // Start a new operation.
  function startOperation(cm) {
    cm.curOp = {
      cm: cm,
      viewChanged: false,      // Flag that indicates that lines might need to be redrawn
      startHeight: cm.doc.height, // Used to detect need to update scrollbar
      forceUpdate: false,      // Used to force a redraw
      updateInput: 0,       // Whether to reset the input textarea
      typing: false,           // Whether this reset should be careful to leave existing text (for compositing)
      changeObjs: null,        // Accumulated changes, for firing change events
      cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on
      cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already
      selectionChanged: false, // Whether the selection needs to be redrawn
      updateMaxLine: false,    // Set when the widest line needs to be determined anew
      scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet
      scrollToPos: null,       // Used to scroll to a specific position
      focus: false,
      id: ++nextOpId           // Unique ID
    };
    pushOperation(cm.curOp);
  }

  // Finish an operation, updating the display and signalling delayed events
  function endOperation(cm) {
    var op = cm.curOp;
    if (op) { finishOperation(op, function (group) {
      for (var i = 0; i < group.ops.length; i++)
        { group.ops[i].cm.curOp = null; }
      endOperations(group);
    }); }
  }

  // The DOM updates done when an operation finishes are batched so
  // that the minimum number of relayouts are required.
  function endOperations(group) {
    var ops = group.ops;
    for (var i = 0; i < ops.length; i++) // Read DOM
      { endOperation_R1(ops[i]); }
    for (var i$1 = 0; i$1 < ops.length; i$1++) // Write DOM (maybe)
      { endOperation_W1(ops[i$1]); }
    for (var i$2 = 0; i$2 < ops.length; i$2++) // Read DOM
      { endOperation_R2(ops[i$2]); }
    for (var i$3 = 0; i$3 < ops.length; i$3++) // Write DOM (maybe)
      { endOperation_W2(ops[i$3]); }
    for (var i$4 = 0; i$4 < ops.length; i$4++) // Read DOM
      { endOperation_finish(ops[i$4]); }
  }

  function endOperation_R1(op) {
    var cm = op.cm, display = cm.display;
    maybeClipScrollbars(cm);
    if (op.updateMaxLine) { findMaxLine(cm); }

    op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null ||
      op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom ||
                         op.scrollToPos.to.line >= display.viewTo) ||
      display.maxLineChanged && cm.options.lineWrapping;
    op.update = op.mustUpdate &&
      new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate);
  }

  function endOperation_W1(op) {
    op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update);
  }

  function endOperation_R2(op) {
    var cm = op.cm, display = cm.display;
    if (op.updatedDisplay) { updateHeightsInViewport(cm); }

    op.barMeasure = measureForScrollbars(cm);

    // If the max line changed since it was last measured, measure it,
    // and ensure the document's width matches it.
    // updateDisplay_W2 will use these properties to do the actual resizing
    if (display.maxLineChanged && !cm.options.lineWrapping) {
      op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3;
      cm.display.sizerWidth = op.adjustWidthTo;
      op.barMeasure.scrollWidth =
        Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth);
      op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm));
    }

    if (op.updatedDisplay || op.selectionChanged)
      { op.preparedSelection = display.input.prepareSelection(); }
  }

  function endOperation_W2(op) {
    var cm = op.cm;

    if (op.adjustWidthTo != null) {
      cm.display.sizer.style.minWidth = op.adjustWidthTo + "px";
      if (op.maxScrollLeft < cm.doc.scrollLeft)
        { setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true); }
      cm.display.maxLineChanged = false;
    }

    var takeFocus = op.focus && op.focus == activeElt();
    if (op.preparedSelection)
      { cm.display.input.showSelection(op.preparedSelection, takeFocus); }
    if (op.updatedDisplay || op.startHeight != cm.doc.height)
      { updateScrollbars(cm, op.barMeasure); }
    if (op.updatedDisplay)
      { setDocumentHeight(cm, op.barMeasure); }

    if (op.selectionChanged) { restartBlink(cm); }

    if (cm.state.focused && op.updateInput)
      { cm.display.input.reset(op.typing); }
    if (takeFocus) { ensureFocus(op.cm); }
  }

  function endOperation_finish(op) {
    var cm = op.cm, display = cm.display, doc = cm.doc;

    if (op.updatedDisplay) { postUpdateDisplay(cm, op.update); }

    // Abort mouse wheel delta measurement, when scrolling explicitly
    if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos))
      { display.wheelStartX = display.wheelStartY = null; }

    // Propagate the scroll position to the actual DOM scroller
    if (op.scrollTop != null) { setScrollTop(cm, op.scrollTop, op.forceScroll); }

    if (op.scrollLeft != null) { setScrollLeft(cm, op.scrollLeft, true, true); }
    // If we need to scroll a specific position into view, do so.
    if (op.scrollToPos) {
      var rect = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from),
                                   clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin);
      maybeScrollWindow(cm, rect);
    }

    // Fire events for markers that are hidden/unidden by editing or
    // undoing
    var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers;
    if (hidden) { for (var i = 0; i < hidden.length; ++i)
      { if (!hidden[i].lines.length) { signal(hidden[i], "hide"); } } }
    if (unhidden) { for (var i$1 = 0; i$1 < unhidden.length; ++i$1)
      { if (unhidden[i$1].lines.length) { signal(unhidden[i$1], "unhide"); } } }

    if (display.wrapper.offsetHeight)
      { doc.scrollTop = cm.display.scroller.scrollTop; }

    // Fire change events, and delayed event handlers
    if (op.changeObjs)
      { signal(cm, "changes", cm, op.changeObjs); }
    if (op.update)
      { op.update.finish(); }
  }

  // Run the given function in an operation
  function runInOp(cm, f) {
    if (cm.curOp) { return f() }
    startOperation(cm);
    try { return f() }
    finally { endOperation(cm); }
  }
  // Wraps a function in an operation. Returns the wrapped function.
  function operation(cm, f) {
    return function() {
      if (cm.curOp) { return f.apply(cm, arguments) }
      startOperation(cm);
      try { return f.apply(cm, arguments) }
      finally { endOperation(cm); }
    }
  }
  // Used to add methods to editor and doc instances, wrapping them in
  // operations.
  function methodOp(f) {
    return function() {
      if (this.curOp) { return f.apply(this, arguments) }
      startOperation(this);
      try { return f.apply(this, arguments) }
      finally { endOperation(this); }
    }
  }
  function docMethodOp(f) {
    return function() {
      var cm = this.cm;
      if (!cm || cm.curOp) { return f.apply(this, arguments) }
      startOperation(cm);
      try { return f.apply(this, arguments) }
      finally { endOperation(cm); }
    }
  }

  // HIGHLIGHT WORKER

  function startWorker(cm, time) {
    if (cm.doc.highlightFrontier < cm.display.viewTo)
      { cm.state.highlight.set(time, bind(highlightWorker, cm)); }
  }

  function highlightWorker(cm) {
    var doc = cm.doc;
    if (doc.highlightFrontier >= cm.display.viewTo) { return }
    var end = +new Date + cm.options.workTime;
    var context = getContextBefore(cm, doc.highlightFrontier);
    var changedLines = [];

    doc.iter(context.line, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function (line) {
      if (context.line >= cm.display.viewFrom) { // Visible
        var oldStyles = line.styles;
        var resetState = line.text.length > cm.options.maxHighlightLength ? copyState(doc.mode, context.state) : null;
        var highlighted = highlightLine(cm, line, context, true);
        if (resetState) { context.state = resetState; }
        line.styles = highlighted.styles;
        var oldCls = line.styleClasses, newCls = highlighted.classes;
        if (newCls) { line.styleClasses = newCls; }
        else if (oldCls) { line.styleClasses = null; }
        var ischange = !oldStyles || oldStyles.length != line.styles.length ||
          oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass);
        for (var i = 0; !ischange && i < oldStyles.length; ++i) { ischange = oldStyles[i] != line.styles[i]; }
        if (ischange) { changedLines.push(context.line); }
        line.stateAfter = context.save();
        context.nextLine();
      } else {
        if (line.text.length <= cm.options.maxHighlightLength)
          { processLine(cm, line.text, context); }
        line.stateAfter = context.line % 5 == 0 ? context.save() : null;
        context.nextLine();
      }
      if (+new Date > end) {
        startWorker(cm, cm.options.workDelay);
        return true
      }
    });
    doc.highlightFrontier = context.line;
    doc.modeFrontier = Math.max(doc.modeFrontier, context.line);
    if (changedLines.length) { runInOp(cm, function () {
      for (var i = 0; i < changedLines.length; i++)
        { regLineChange(cm, changedLines[i], "text"); }
    }); }
  }

  // DISPLAY DRAWING

  var DisplayUpdate = function(cm, viewport, force) {
    var display = cm.display;

    this.viewport = viewport;
    // Store some values that we'll need later (but don't want to force a relayout for)
    this.visible = visibleLines(display, cm.doc, viewport);
    this.editorIsHidden = !display.wrapper.offsetWidth;
    this.wrapperHeight = display.wrapper.clientHeight;
    this.wrapperWidth = display.wrapper.clientWidth;
    this.oldDisplayWidth = displayWidth(cm);
    this.force = force;
    this.dims = getDimensions(cm);
    this.events = [];
  };

  DisplayUpdate.prototype.signal = function (emitter, type) {
    if (hasHandler(emitter, type))
      { this.events.push(arguments); }
  };
  DisplayUpdate.prototype.finish = function () {
    for (var i = 0; i < this.events.length; i++)
      { signal.apply(null, this.events[i]); }
  };

  function maybeClipScrollbars(cm) {
    var display = cm.display;
    if (!display.scrollbarsClipped && display.scroller.offsetWidth) {
      display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth;
      display.heightForcer.style.height = scrollGap(cm) + "px";
      display.sizer.style.marginBottom = -display.nativeBarWidth + "px";
      display.sizer.style.borderRightWidth = scrollGap(cm) + "px";
      display.scrollbarsClipped = true;
    }
  }

  function selectionSnapshot(cm) {
    if (cm.hasFocus()) { return null }
    var active = activeElt();
    if (!active || !contains(cm.display.lineDiv, active)) { return null }
    var result = {activeElt: active};
    if (window.getSelection) {
      var sel = window.getSelection();
      if (sel.anchorNode && sel.extend && contains(cm.display.lineDiv, sel.anchorNode)) {
        result.anchorNode = sel.anchorNode;
        result.anchorOffset = sel.anchorOffset;
        result.focusNode = sel.focusNode;
        result.focusOffset = sel.focusOffset;
      }
    }
    return result
  }

  function restoreSelection(snapshot) {
    if (!snapshot || !snapshot.activeElt || snapshot.activeElt == activeElt()) { return }
    snapshot.activeElt.focus();
    if (!/^(INPUT|TEXTAREA)$/.test(snapshot.activeElt.nodeName) &&
        snapshot.anchorNode && contains(document.body, snapshot.anchorNode) && contains(document.body, snapshot.focusNode)) {
      var sel = window.getSelection(), range = document.createRange();
      range.setEnd(snapshot.anchorNode, snapshot.anchorOffset);
      range.collapse(false);
      sel.removeAllRanges();
      sel.addRange(range);
      sel.extend(snapshot.focusNode, snapshot.focusOffset);
    }
  }

  // Does the actual updating of the line display. Bails out
  // (returning false) when there is nothing to be done and forced is
  // false.
  function updateDisplayIfNeeded(cm, update) {
    var display = cm.display, doc = cm.doc;

    if (update.editorIsHidden) {
      resetView(cm);
      return false
    }

    // Bail out if the visible area is already rendered and nothing changed.
    if (!update.force &&
        update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo &&
        (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) &&
        display.renderedView == display.view && countDirtyView(cm) == 0)
      { return false }

    if (maybeUpdateLineNumberWidth(cm)) {
      resetView(cm);
      update.dims = getDimensions(cm);
    }

    // Compute a suitable new viewport (from & to)
    var end = doc.first + doc.size;
    var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first);
    var to = Math.min(end, update.visible.to + cm.options.viewportMargin);
    if (display.viewFrom < from && from - display.viewFrom < 20) { from = Math.max(doc.first, display.viewFrom); }
    if (display.viewTo > to && display.viewTo - to < 20) { to = Math.min(end, display.viewTo); }
    if (sawCollapsedSpans) {
      from = visualLineNo(cm.doc, from);
      to = visualLineEndNo(cm.doc, to);
    }

    var different = from != display.viewFrom || to != display.viewTo ||
      display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth;
    adjustView(cm, from, to);

    display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom));
    // Position the mover div to align with the current scroll position
    cm.display.mover.style.top = display.viewOffset + "px";

    var toUpdate = countDirtyView(cm);
    if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view &&
        (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo))
      { return false }

    // For big changes, we hide the enclosing element during the
    // update, since that speeds up the operations on most browsers.
    var selSnapshot = selectionSnapshot(cm);
    if (toUpdate > 4) { display.lineDiv.style.display = "none"; }
    patchDisplay(cm, display.updateLineNumbers, update.dims);
    if (toUpdate > 4) { display.lineDiv.style.display = ""; }
    display.renderedView = display.view;
    // There might have been a widget with a focused element that got
    // hidden or updated, if so re-focus it.
    restoreSelection(selSnapshot);

    // Prevent selection and cursors from interfering with the scroll
    // width and height.
    removeChildren(display.cursorDiv);
    removeChildren(display.selectionDiv);
    display.gutters.style.height = display.sizer.style.minHeight = 0;

    if (different) {
      display.lastWrapHeight = update.wrapperHeight;
      display.lastWrapWidth = update.wrapperWidth;
      startWorker(cm, 400);
    }

    display.updateLineNumbers = null;

    return true
  }

  function postUpdateDisplay(cm, update) {
    var viewport = update.viewport;

    for (var first = true;; first = false) {
      if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) {
        // Clip forced viewport to actual scrollable area.
        if (viewport && viewport.top != null)
          { viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)}; }
        // Updated line heights might result in the drawn area not
        // actually covering the viewport. Keep looping until it does.
        update.visible = visibleLines(cm.display, cm.doc, viewport);
        if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo)
          { break }
      } else if (first) {
        update.visible = visibleLines(cm.display, cm.doc, viewport);
      }
      if (!updateDisplayIfNeeded(cm, update)) { break }
      updateHeightsInViewport(cm);
      var barMeasure = measureForScrollbars(cm);
      updateSelection(cm);
      updateScrollbars(cm, barMeasure);
      setDocumentHeight(cm, barMeasure);
      update.force = false;
    }

    update.signal(cm, "update", cm);
    if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) {
      update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo);
      cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo;
    }
  }

  function updateDisplaySimple(cm, viewport) {
    var update = new DisplayUpdate(cm, viewport);
    if (updateDisplayIfNeeded(cm, update)) {
      updateHeightsInViewport(cm);
      postUpdateDisplay(cm, update);
      var barMeasure = measureForScrollbars(cm);
      updateSelection(cm);
      updateScrollbars(cm, barMeasure);
      setDocumentHeight(cm, barMeasure);
      update.finish();
    }
  }

  // Sync the actual display DOM structure with display.view, removing
  // nodes for lines that are no longer in view, and creating the ones
  // that are not there yet, and updating the ones that are out of
  // date.
  function patchDisplay(cm, updateNumbersFrom, dims) {
    var display = cm.display, lineNumbers = cm.options.lineNumbers;
    var container = display.lineDiv, cur = container.firstChild;

    function rm(node) {
      var next = node.nextSibling;
      // Works around a throw-scroll bug in OS X Webkit
      if (webkit && mac && cm.display.currentWheelTarget == node)
        { node.style.display = "none"; }
      else
        { node.parentNode.removeChild(node); }
      return next
    }

    var view = display.view, lineN = display.viewFrom;
    // Loop over the elements in the view, syncing cur (the DOM nodes
    // in display.lineDiv) with the view as we go.
    for (var i = 0; i < view.length; i++) {
      var lineView = view[i];
      if (lineView.hidden) ; else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet
        var node = buildLineElement(cm, lineView, lineN, dims);
        container.insertBefore(node, cur);
      } else { // Already drawn
        while (cur != lineView.node) { cur = rm(cur); }
        var updateNumber = lineNumbers && updateNumbersFrom != null &&
          updateNumbersFrom <= lineN && lineView.lineNumber;
        if (lineView.changes) {
          if (indexOf(lineView.changes, "gutter") > -1) { updateNumber = false; }
          updateLineForChanges(cm, lineView, lineN, dims);
        }
        if (updateNumber) {
          removeChildren(lineView.lineNumber);
          lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN)));
        }
        cur = lineView.node.nextSibling;
      }
      lineN += lineView.size;
    }
    while (cur) { cur = rm(cur); }
  }

  function updateGutterSpace(display) {
    var width = display.gutters.offsetWidth;
    display.sizer.style.marginLeft = width + "px";
  }

  function setDocumentHeight(cm, measure) {
    cm.display.sizer.style.minHeight = measure.docHeight + "px";
    cm.display.heightForcer.style.top = measure.docHeight + "px";
    cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + "px";
  }

  // Re-align line numbers and gutter marks to compensate for
  // horizontal scrolling.
  function alignHorizontally(cm) {
    var display = cm.display, view = display.view;
    if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) { return }
    var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft;
    var gutterW = display.gutters.offsetWidth, left = comp + "px";
    for (var i = 0; i < view.length; i++) { if (!view[i].hidden) {
      if (cm.options.fixedGutter) {
        if (view[i].gutter)
          { view[i].gutter.style.left = left; }
        if (view[i].gutterBackground)
          { view[i].gutterBackground.style.left = left; }
      }
      var align = view[i].alignable;
      if (align) { for (var j = 0; j < align.length; j++)
        { align[j].style.left = left; } }
    } }
    if (cm.options.fixedGutter)
      { display.gutters.style.left = (comp + gutterW) + "px"; }
  }

  // Used to ensure that the line number gutter is still the right
  // size for the current document size. Returns true when an update
  // is needed.
  function maybeUpdateLineNumberWidth(cm) {
    if (!cm.options.lineNumbers) { return false }
    var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display;
    if (last.length != display.lineNumChars) {
      var test = display.measure.appendChild(elt("div", [elt("div", last)],
                                                 "CodeMirror-linenumber CodeMirror-gutter-elt"));
      var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW;
      display.lineGutter.style.width = "";
      display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1;
      display.lineNumWidth = display.lineNumInnerWidth + padding;
      display.lineNumChars = display.lineNumInnerWidth ? last.length : -1;
      display.lineGutter.style.width = display.lineNumWidth + "px";
      updateGutterSpace(cm.display);
      return true
    }
    return false
  }

  function getGutters(gutters, lineNumbers) {
    var result = [], sawLineNumbers = false;
    for (var i = 0; i < gutters.length; i++) {
      var name = gutters[i], style = null;
      if (typeof name != "string") { style = name.style; name = name.className; }
      if (name == "CodeMirror-linenumbers") {
        if (!lineNumbers) { continue }
        else { sawLineNumbers = true; }
      }
      result.push({className: name, style: style});
    }
    if (lineNumbers && !sawLineNumbers) { result.push({className: "CodeMirror-linenumbers", style: null}); }
    return result
  }

  // Rebuild the gutter elements, ensure the margin to the left of the
  // code matches their width.
  function renderGutters(display) {
    var gutters = display.gutters, specs = display.gutterSpecs;
    removeChildren(gutters);
    display.lineGutter = null;
    for (var i = 0; i < specs.length; ++i) {
      var ref = specs[i];
      var className = ref.className;
      var style = ref.style;
      var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + className));
      if (style) { gElt.style.cssText = style; }
      if (className == "CodeMirror-linenumbers") {
        display.lineGutter = gElt;
        gElt.style.width = (display.lineNumWidth || 1) + "px";
      }
    }
    gutters.style.display = specs.length ? "" : "none";
    updateGutterSpace(display);
  }

  function updateGutters(cm) {
    renderGutters(cm.display);
    regChange(cm);
    alignHorizontally(cm);
  }

  // The display handles the DOM integration, both for input reading
  // and content drawing. It holds references to DOM nodes and
  // display-related state.

  function Display(place, doc, input, options) {
    var d = this;
    this.input = input;

    // Covers bottom-right square when both scrollbars are present.
    d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler");
    d.scrollbarFiller.setAttribute("cm-not-content", "true");
    // Covers bottom of gutter when coverGutterNextToScrollbar is on
    // and h scrollbar is present.
    d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler");
    d.gutterFiller.setAttribute("cm-not-content", "true");
    // Will contain the actual code, positioned to cover the viewport.
    d.lineDiv = eltP("div", null, "CodeMirror-code");
    // Elements are added to these to represent selection and cursors.
    d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1");
    d.cursorDiv = elt("div", null, "CodeMirror-cursors");
    // A visibility: hidden element used to find the size of things.
    d.measure = elt("div", null, "CodeMirror-measure");
    // When lines outside of the viewport are measured, they are drawn in this.
    d.lineMeasure = elt("div", null, "CodeMirror-measure");
    // Wraps everything that needs to exist inside the vertically-padded coordinate system
    d.lineSpace = eltP("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv],
                      null, "position: relative; outline: none");
    var lines = eltP("div", [d.lineSpace], "CodeMirror-lines");
    // Moved around its parent to cover visible view.
    d.mover = elt("div", [lines], null, "position: relative");
    // Set to the height of the document, allowing scrolling.
    d.sizer = elt("div", [d.mover], "CodeMirror-sizer");
    d.sizerWidth = null;
    // Behavior of elts with overflow: auto and padding is
    // inconsistent across browsers. This is used to ensure the
    // scrollable area is big enough.
    d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;");
    // Will contain the gutters, if any.
    d.gutters = elt("div", null, "CodeMirror-gutters");
    d.lineGutter = null;
    // Actual scrollable element.
    d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll");
    d.scroller.setAttribute("tabIndex", "-1");
    // The element in which the editor lives.
    d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror");

    // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)
    if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; }
    if (!webkit && !(gecko && mobile)) { d.scroller.draggable = true; }

    if (place) {
      if (place.appendChild) { place.appendChild(d.wrapper); }
      else { place(d.wrapper); }
    }

    // Current rendered range (may be bigger than the view window).
    d.viewFrom = d.viewTo = doc.first;
    d.reportedViewFrom = d.reportedViewTo = doc.first;
    // Information about the rendered lines.
    d.view = [];
    d.renderedView = null;
    // Holds info about a single rendered line when it was rendered
    // for measurement, while not in view.
    d.externalMeasured = null;
    // Empty space (in pixels) above the view
    d.viewOffset = 0;
    d.lastWrapHeight = d.lastWrapWidth = 0;
    d.updateLineNumbers = null;

    d.nativeBarWidth = d.barHeight = d.barWidth = 0;
    d.scrollbarsClipped = false;

    // Used to only resize the line number gutter when necessary (when
    // the amount of lines crosses a boundary that makes its width change)
    d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null;
    // Set to true when a non-horizontal-scrolling line widget is
    // added. As an optimization, line widget aligning is skipped when
    // this is false.
    d.alignWidgets = false;

    d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;

    // Tracks the maximum line length so that the horizontal scrollbar
    // can be kept static when scrolling.
    d.maxLine = null;
    d.maxLineLength = 0;
    d.maxLineChanged = false;

    // Used for measuring wheel scrolling granularity
    d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null;

    // True when shift is held down.
    d.shift = false;

    // Used to track whether anything happened since the context menu
    // was opened.
    d.selForContextMenu = null;

    d.activeTouch = null;

    d.gutterSpecs = getGutters(options.gutters, options.lineNumbers);
    renderGutters(d);

    input.init(d);
  }

  // Since the delta values reported on mouse wheel events are
  // unstandardized between browsers and even browser versions, and
  // generally horribly unpredictable, this code starts by measuring
  // the scroll effect that the first few mouse wheel events have,
  // and, from that, detects the way it can convert deltas to pixel
  // offsets afterwards.
  //
  // The reason we want to know the amount a wheel event will scroll
  // is that it gives us a chance to update the display before the
  // actual scrolling happens, reducing flickering.

  var wheelSamples = 0, wheelPixelsPerUnit = null;
  // Fill in a browser-detected starting value on browsers where we
  // know one. These don't have to be accurate -- the result of them
  // being wrong would just be a slight flicker on the first wheel
  // scroll (if it is large enough).
  if (ie) { wheelPixelsPerUnit = -.53; }
  else if (gecko) { wheelPixelsPerUnit = 15; }
  else if (chrome) { wheelPixelsPerUnit = -.7; }
  else if (safari) { wheelPixelsPerUnit = -1/3; }

  function wheelEventDelta(e) {
    var dx = e.wheelDeltaX, dy = e.wheelDeltaY;
    if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) { dx = e.detail; }
    if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) { dy = e.detail; }
    else if (dy == null) { dy = e.wheelDelta; }
    return {x: dx, y: dy}
  }
  function wheelEventPixels(e) {
    var delta = wheelEventDelta(e);
    delta.x *= wheelPixelsPerUnit;
    delta.y *= wheelPixelsPerUnit;
    return delta
  }

  function onScrollWheel(cm, e) {
    var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y;

    var display = cm.display, scroll = display.scroller;
    // Quit if there's nothing to scroll here
    var canScrollX = scroll.scrollWidth > scroll.clientWidth;
    var canScrollY = scroll.scrollHeight > scroll.clientHeight;
    if (!(dx && canScrollX || dy && canScrollY)) { return }

    // Webkit browsers on OS X abort momentum scrolls when the target
    // of the scroll event is removed from the scrollable element.
    // This hack (see related code in patchDisplay) makes sure the
    // element is kept around.
    if (dy && mac && webkit) {
      outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) {
        for (var i = 0; i < view.length; i++) {
          if (view[i].node == cur) {
            cm.display.currentWheelTarget = cur;
            break outer
          }
        }
      }
    }

    // On some browsers, horizontal scrolling will cause redraws to
    // happen before the gutter has been realigned, causing it to
    // wriggle around in a most unseemly way. When we have an
    // estimated pixels/delta value, we just handle horizontal
    // scrolling entirely here. It'll be slightly off from native, but
    // better than glitching out.
    if (dx && !gecko && !presto && wheelPixelsPerUnit != null) {
      if (dy && canScrollY)
        { updateScrollTop(cm, Math.max(0, scroll.scrollTop + dy * wheelPixelsPerUnit)); }
      setScrollLeft(cm, Math.max(0, scroll.scrollLeft + dx * wheelPixelsPerUnit));
      // Only prevent default scrolling if vertical scrolling is
      // actually possible. Otherwise, it causes vertical scroll
      // jitter on OSX trackpads when deltaX is small and deltaY
      // is large (issue #3579)
      if (!dy || (dy && canScrollY))
        { e_preventDefault(e); }
      display.wheelStartX = null; // Abort measurement, if in progress
      return
    }

    // 'Project' the visible viewport to cover the area that is being
    // scrolled into view (if we know enough to estimate it).
    if (dy && wheelPixelsPerUnit != null) {
      var pixels = dy * wheelPixelsPerUnit;
      var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight;
      if (pixels < 0) { top = Math.max(0, top + pixels - 50); }
      else { bot = Math.min(cm.doc.height, bot + pixels + 50); }
      updateDisplaySimple(cm, {top: top, bottom: bot});
    }

    if (wheelSamples < 20) {
      if (display.wheelStartX == null) {
        display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop;
        display.wheelDX = dx; display.wheelDY = dy;
        setTimeout(function () {
          if (display.wheelStartX == null) { return }
          var movedX = scroll.scrollLeft - display.wheelStartX;
          var movedY = scroll.scrollTop - display.wheelStartY;
          var sample = (movedY && display.wheelDY && movedY / display.wheelDY) ||
            (movedX && display.wheelDX && movedX / display.wheelDX);
          display.wheelStartX = display.wheelStartY = null;
          if (!sample) { return }
          wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1);
          ++wheelSamples;
        }, 200);
      } else {
        display.wheelDX += dx; display.wheelDY += dy;
      }
    }
  }

  // Selection objects are immutable. A new one is created every time
  // the selection changes. A selection is one or more non-overlapping
  // (and non-touching) ranges, sorted, and an integer that indicates
  // which one is the primary selection (the one that's scrolled into
  // view, that getCursor returns, etc).
  var Selection = function(ranges, primIndex) {
    this.ranges = ranges;
    this.primIndex = primIndex;
  };

  Selection.prototype.primary = function () { return this.ranges[this.primIndex] };

  Selection.prototype.equals = function (other) {
    if (other == this) { return true }
    if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) { return false }
    for (var i = 0; i < this.ranges.length; i++) {
      var here = this.ranges[i], there = other.ranges[i];
      if (!equalCursorPos(here.anchor, there.anchor) || !equalCursorPos(here.head, there.head)) { return false }
    }
    return true
  };

  Selection.prototype.deepCopy = function () {
    var out = [];
    for (var i = 0; i < this.ranges.length; i++)
      { out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head)); }
    return new Selection(out, this.primIndex)
  };

  Selection.prototype.somethingSelected = function () {
    for (var i = 0; i < this.ranges.length; i++)
      { if (!this.ranges[i].empty()) { return true } }
    return false
  };

  Selection.prototype.contains = function (pos, end) {
    if (!end) { end = pos; }
    for (var i = 0; i < this.ranges.length; i++) {
      var range = this.ranges[i];
      if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)
        { return i }
    }
    return -1
  };

  var Range = function(anchor, head) {
    this.anchor = anchor; this.head = head;
  };

  Range.prototype.from = function () { return minPos(this.anchor, this.head) };
  Range.prototype.to = function () { return maxPos(this.anchor, this.head) };
  Range.prototype.empty = function () { return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch };

  // Take an unsorted, potentially overlapping set of ranges, and
  // build a selection out of it. 'Consumes' ranges array (modifying
  // it).
  function normalizeSelection(cm, ranges, primIndex) {
    var mayTouch = cm && cm.options.selectionsMayTouch;
    var prim = ranges[primIndex];
    ranges.sort(function (a, b) { return cmp(a.from(), b.from()); });
    primIndex = indexOf(ranges, prim);
    for (var i = 1; i < ranges.length; i++) {
      var cur = ranges[i], prev = ranges[i - 1];
      var diff = cmp(prev.to(), cur.from());
      if (mayTouch && !cur.empty() ? diff > 0 : diff >= 0) {
        var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to());
        var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head;
        if (i <= primIndex) { --primIndex; }
        ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to));
      }
    }
    return new Selection(ranges, primIndex)
  }

  function simpleSelection(anchor, head) {
    return new Selection([new Range(anchor, head || anchor)], 0)
  }

  // Compute the position of the end of a change (its 'to' property
  // refers to the pre-change end).
  function changeEnd(change) {
    if (!change.text) { return change.to }
    return Pos(change.from.line + change.text.length - 1,
               lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0))
  }

  // Adjust a position to refer to the post-change position of the
  // same text, or the end of the change if the change covers it.
  function adjustForChange(pos, change) {
    if (cmp(pos, change.from) < 0) { return pos }
    if (cmp(pos, change.to) <= 0) { return changeEnd(change) }

    var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch;
    if (pos.line == change.to.line) { ch += changeEnd(change).ch - change.to.ch; }
    return Pos(line, ch)
  }

  function computeSelAfterChange(doc, change) {
    var out = [];
    for (var i = 0; i < doc.sel.ranges.length; i++) {
      var range = doc.sel.ranges[i];
      out.push(new Range(adjustForChange(range.anchor, change),
                         adjustForChange(range.head, change)));
    }
    return normalizeSelection(doc.cm, out, doc.sel.primIndex)
  }

  function offsetPos(pos, old, nw) {
    if (pos.line == old.line)
      { return Pos(nw.line, pos.ch - old.ch + nw.ch) }
    else
      { return Pos(nw.line + (pos.line - old.line), pos.ch) }
  }

  // Used by replaceSelections to allow moving the selection to the
  // start or around the replaced test. Hint may be "start" or "around".
  function computeReplacedSel(doc, changes, hint) {
    var out = [];
    var oldPrev = Pos(doc.first, 0), newPrev = oldPrev;
    for (var i = 0; i < changes.length; i++) {
      var change = changes[i];
      var from = offsetPos(change.from, oldPrev, newPrev);
      var to = offsetPos(changeEnd(change), oldPrev, newPrev);
      oldPrev = change.to;
      newPrev = to;
      if (hint == "around") {
        var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0;
        out[i] = new Range(inv ? to : from, inv ? from : to);
      } else {
        out[i] = new Range(from, from);
      }
    }
    return new Selection(out, doc.sel.primIndex)
  }

  // Used to get the editor into a consistent state again when options change.

  function loadMode(cm) {
    cm.doc.mode = getMode(cm.options, cm.doc.modeOption);
    resetModeState(cm);
  }

  function resetModeState(cm) {
    cm.doc.iter(function (line) {
      if (line.stateAfter) { line.stateAfter = null; }
      if (line.styles) { line.styles = null; }
    });
    cm.doc.modeFrontier = cm.doc.highlightFrontier = cm.doc.first;
    startWorker(cm, 100);
    cm.state.modeGen++;
    if (cm.curOp) { regChange(cm); }
  }

  // DOCUMENT DATA STRUCTURE

  // By default, updates that start and end at the beginning of a line
  // are treated specially, in order to make the association of line
  // widgets and marker elements with the text behave more intuitive.
  function isWholeLineUpdate(doc, change) {
    return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" &&
      (!doc.cm || doc.cm.options.wholeLineUpdateBefore)
  }

  // Perform a change on the document data structure.
  function updateDoc(doc, change, markedSpans, estimateHeight) {
    function spansFor(n) {return markedSpans ? markedSpans[n] : null}
    function update(line, text, spans) {
      updateLine(line, text, spans, estimateHeight);
      signalLater(line, "change", line, change);
    }
    function linesFor(start, end) {
      var result = [];
      for (var i = start; i < end; ++i)
        { result.push(new Line(text[i], spansFor(i), estimateHeight)); }
      return result
    }

    var from = change.from, to = change.to, text = change.text;
    var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line);
    var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line;

    // Adjust the line structure
    if (change.full) {
      doc.insert(0, linesFor(0, text.length));
      doc.remove(text.length, doc.size - text.length);
    } else if (isWholeLineUpdate(doc, change)) {
      // This is a whole-line replace. Treated specially to make
      // sure line objects move the way they are supposed to.
      var added = linesFor(0, text.length - 1);
      update(lastLine, lastLine.text, lastSpans);
      if (nlines) { doc.remove(from.line, nlines); }
      if (added.length) { doc.insert(from.line, added); }
    } else if (firstLine == lastLine) {
      if (text.length == 1) {
        update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans);
      } else {
        var added$1 = linesFor(1, text.length - 1);
        added$1.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight));
        update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
        doc.insert(from.line + 1, added$1);
      }
    } else if (text.length == 1) {
      update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0));
      doc.remove(from.line + 1, nlines);
    } else {
      update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
      update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans);
      var added$2 = linesFor(1, text.length - 1);
      if (nlines > 1) { doc.remove(from.line + 1, nlines - 1); }
      doc.insert(from.line + 1, added$2);
    }

    signalLater(doc, "change", doc, change);
  }

  // Call f for all linked documents.
  function linkedDocs(doc, f, sharedHistOnly) {
    function propagate(doc, skip, sharedHist) {
      if (doc.linked) { for (var i = 0; i < doc.linked.length; ++i) {
        var rel = doc.linked[i];
        if (rel.doc == skip) { continue }
        var shared = sharedHist && rel.sharedHist;
        if (sharedHistOnly && !shared) { continue }
        f(rel.doc, shared);
        propagate(rel.doc, doc, shared);
      } }
    }
    propagate(doc, null, true);
  }

  // Attach a document to an editor.
  function attachDoc(cm, doc) {
    if (doc.cm) { throw new Error("This document is already in use.") }
    cm.doc = doc;
    doc.cm = cm;
    estimateLineHeights(cm);
    loadMode(cm);
    setDirectionClass(cm);
    if (!cm.options.lineWrapping) { findMaxLine(cm); }
    cm.options.mode = doc.modeOption;
    regChange(cm);
  }

  function setDirectionClass(cm) {
  (cm.doc.direction == "rtl" ? addClass : rmClass)(cm.display.lineDiv, "CodeMirror-rtl");
  }

  function directionChanged(cm) {
    runInOp(cm, function () {
      setDirectionClass(cm);
      regChange(cm);
    });
  }

  function History(startGen) {
    // Arrays of change events and selections. Doing something adds an
    // event to done and clears undo. Undoing moves events from done
    // to undone, redoing moves them in the other direction.
    this.done = []; this.undone = [];
    this.undoDepth = Infinity;
    // Used to track when changes can be merged into a single undo
    // event
    this.lastModTime = this.lastSelTime = 0;
    this.lastOp = this.lastSelOp = null;
    this.lastOrigin = this.lastSelOrigin = null;
    // Used by the isClean() method
    this.generation = this.maxGeneration = startGen || 1;
  }

  // Create a history change event from an updateDoc-style change
  // object.
  function historyChangeFromChange(doc, change) {
    var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)};
    attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);
    linkedDocs(doc, function (doc) { return attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); }, true);
    return histChange
  }

  // Pop all selection events off the end of a history array. Stop at
  // a change event.
  function clearSelectionEvents(array) {
    while (array.length) {
      var last = lst(array);
      if (last.ranges) { array.pop(); }
      else { break }
    }
  }

  // Find the top change event in the history. Pop off selection
  // events that are in the way.
  function lastChangeEvent(hist, force) {
    if (force) {
      clearSelectionEvents(hist.done);
      return lst(hist.done)
    } else if (hist.done.length && !lst(hist.done).ranges) {
      return lst(hist.done)
    } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) {
      hist.done.pop();
      return lst(hist.done)
    }
  }

  // Register a change in the history. Merges changes that are within
  // a single operation, or are close together with an origin that
  // allows merging (starting with "+") into a single event.
  function addChangeToHistory(doc, change, selAfter, opId) {
    var hist = doc.history;
    hist.undone.length = 0;
    var time = +new Date, cur;
    var last;

    if ((hist.lastOp == opId ||
         hist.lastOrigin == change.origin && change.origin &&
         ((change.origin.charAt(0) == "+" && hist.lastModTime > time - (doc.cm ? doc.cm.options.historyEventDelay : 500)) ||
          change.origin.charAt(0) == "*")) &&
        (cur = lastChangeEvent(hist, hist.lastOp == opId))) {
      // Merge this change into the last event
      last = lst(cur.changes);
      if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) {
        // Optimized case for simple insertion -- don't want to add
        // new changesets for every character typed
        last.to = changeEnd(change);
      } else {
        // Add new sub-event
        cur.changes.push(historyChangeFromChange(doc, change));
      }
    } else {
      // Can not be merged, start a new event.
      var before = lst(hist.done);
      if (!before || !before.ranges)
        { pushSelectionToHistory(doc.sel, hist.done); }
      cur = {changes: [historyChangeFromChange(doc, change)],
             generation: hist.generation};
      hist.done.push(cur);
      while (hist.done.length > hist.undoDepth) {
        hist.done.shift();
        if (!hist.done[0].ranges) { hist.done.shift(); }
      }
    }
    hist.done.push(selAfter);
    hist.generation = ++hist.maxGeneration;
    hist.lastModTime = hist.lastSelTime = time;
    hist.lastOp = hist.lastSelOp = opId;
    hist.lastOrigin = hist.lastSelOrigin = change.origin;

    if (!last) { signal(doc, "historyAdded"); }
  }

  function selectionEventCanBeMerged(doc, origin, prev, sel) {
    var ch = origin.charAt(0);
    return ch == "*" ||
      ch == "+" &&
      prev.ranges.length == sel.ranges.length &&
      prev.somethingSelected() == sel.somethingSelected() &&
      new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500)
  }

  // Called whenever the selection changes, sets the new selection as
  // the pending selection in the history, and pushes the old pending
  // selection into the 'done' array when it was significantly
  // different (in number of selected ranges, emptiness, or time).
  function addSelectionToHistory(doc, sel, opId, options) {
    var hist = doc.history, origin = options && options.origin;

    // A new event is started when the previous origin does not match
    // the current, or the origins don't allow matching. Origins
    // starting with * are always merged, those starting with + are
    // merged when similar and close together in time.
    if (opId == hist.lastSelOp ||
        (origin && hist.lastSelOrigin == origin &&
         (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin ||
          selectionEventCanBeMerged(doc, origin, lst(hist.done), sel))))
      { hist.done[hist.done.length - 1] = sel; }
    else
      { pushSelectionToHistory(sel, hist.done); }

    hist.lastSelTime = +new Date;
    hist.lastSelOrigin = origin;
    hist.lastSelOp = opId;
    if (options && options.clearRedo !== false)
      { clearSelectionEvents(hist.undone); }
  }

  function pushSelectionToHistory(sel, dest) {
    var top = lst(dest);
    if (!(top && top.ranges && top.equals(sel)))
      { dest.push(sel); }
  }

  // Used to store marked span information in the history.
  function attachLocalSpans(doc, change, from, to) {
    var existing = change["spans_" + doc.id], n = 0;
    doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function (line) {
      if (line.markedSpans)
        { (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans; }
      ++n;
    });
  }

  // When un/re-doing restores text containing marked spans, those
  // that have been explicitly cleared should not be restored.
  function removeClearedSpans(spans) {
    if (!spans) { return null }
    var out;
    for (var i = 0; i < spans.length; ++i) {
      if (spans[i].marker.explicitlyCleared) { if (!out) { out = spans.slice(0, i); } }
      else if (out) { out.push(spans[i]); }
    }
    return !out ? spans : out.length ? out : null
  }

  // Retrieve and filter the old marked spans stored in a change event.
  function getOldSpans(doc, change) {
    var found = change["spans_" + doc.id];
    if (!found) { return null }
    var nw = [];
    for (var i = 0; i < change.text.length; ++i)
      { nw.push(removeClearedSpans(found[i])); }
    return nw
  }

  // Used for un/re-doing changes from the history. Combines the
  // result of computing the existing spans with the set of spans that
  // existed in the history (so that deleting around a span and then
  // undoing brings back the span).
  function mergeOldSpans(doc, change) {
    var old = getOldSpans(doc, change);
    var stretched = stretchSpansOverChange(doc, change);
    if (!old) { return stretched }
    if (!stretched) { return old }

    for (var i = 0; i < old.length; ++i) {
      var oldCur = old[i], stretchCur = stretched[i];
      if (oldCur && stretchCur) {
        spans: for (var j = 0; j < stretchCur.length; ++j) {
          var span = stretchCur[j];
          for (var k = 0; k < oldCur.length; ++k)
            { if (oldCur[k].marker == span.marker) { continue spans } }
          oldCur.push(span);
        }
      } else if (stretchCur) {
        old[i] = stretchCur;
      }
    }
    return old
  }

  // Used both to provide a JSON-safe object in .getHistory, and, when
  // detaching a document, to split the history in two
  function copyHistoryArray(events, newGroup, instantiateSel) {
    var copy = [];
    for (var i = 0; i < events.length; ++i) {
      var event = events[i];
      if (event.ranges) {
        copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event);
        continue
      }
      var changes = event.changes, newChanges = [];
      copy.push({changes: newChanges});
      for (var j = 0; j < changes.length; ++j) {
        var change = changes[j], m = (void 0);
        newChanges.push({from: change.from, to: change.to, text: change.text});
        if (newGroup) { for (var prop in change) { if (m = prop.match(/^spans_(\d+)$/)) {
          if (indexOf(newGroup, Number(m[1])) > -1) {
            lst(newChanges)[prop] = change[prop];
            delete change[prop];
          }
        } } }
      }
    }
    return copy
  }

  // The 'scroll' parameter given to many of these indicated whether
  // the new cursor position should be scrolled into view after
  // modifying the selection.

  // If shift is held or the extend flag is set, extends a range to
  // include a given position (and optionally a second position).
  // Otherwise, simply returns the range between the given positions.
  // Used for cursor motion and such.
  function extendRange(range, head, other, extend) {
    if (extend) {
      var anchor = range.anchor;
      if (other) {
        var posBefore = cmp(head, anchor) < 0;
        if (posBefore != (cmp(other, anchor) < 0)) {
          anchor = head;
          head = other;
        } else if (posBefore != (cmp(head, other) < 0)) {
          head = other;
        }
      }
      return new Range(anchor, head)
    } else {
      return new Range(other || head, head)
    }
  }

  // Extend the primary selection range, discard the rest.
  function extendSelection(doc, head, other, options, extend) {
    if (extend == null) { extend = doc.cm && (doc.cm.display.shift || doc.extend); }
    setSelection(doc, new Selection([extendRange(doc.sel.primary(), head, other, extend)], 0), options);
  }

  // Extend all selections (pos is an array of selections with length
  // equal the number of selections)
  function extendSelections(doc, heads, options) {
    var out = [];
    var extend = doc.cm && (doc.cm.display.shift || doc.extend);
    for (var i = 0; i < doc.sel.ranges.length; i++)
      { out[i] = extendRange(doc.sel.ranges[i], heads[i], null, extend); }
    var newSel = normalizeSelection(doc.cm, out, doc.sel.primIndex);
    setSelection(doc, newSel, options);
  }

  // Updates a single range in the selection.
  function replaceOneSelection(doc, i, range, options) {
    var ranges = doc.sel.ranges.slice(0);
    ranges[i] = range;
    setSelection(doc, normalizeSelection(doc.cm, ranges, doc.sel.primIndex), options);
  }

  // Reset the selection to a single range.
  function setSimpleSelection(doc, anchor, head, options) {
    setSelection(doc, simpleSelection(anchor, head), options);
  }

  // Give beforeSelectionChange handlers a change to influence a
  // selection update.
  function filterSelectionChange(doc, sel, options) {
    var obj = {
      ranges: sel.ranges,
      update: function(ranges) {
        this.ranges = [];
        for (var i = 0; i < ranges.length; i++)
          { this.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),
                                     clipPos(doc, ranges[i].head)); }
      },
      origin: options && options.origin
    };
    signal(doc, "beforeSelectionChange", doc, obj);
    if (doc.cm) { signal(doc.cm, "beforeSelectionChange", doc.cm, obj); }
    if (obj.ranges != sel.ranges) { return normalizeSelection(doc.cm, obj.ranges, obj.ranges.length - 1) }
    else { return sel }
  }

  function setSelectionReplaceHistory(doc, sel, options) {
    var done = doc.history.done, last = lst(done);
    if (last && last.ranges) {
      done[done.length - 1] = sel;
      setSelectionNoUndo(doc, sel, options);
    } else {
      setSelection(doc, sel, options);
    }
  }

  // Set a new selection.
  function setSelection(doc, sel, options) {
    setSelectionNoUndo(doc, sel, options);
    addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options);
  }

  function setSelectionNoUndo(doc, sel, options) {
    if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange"))
      { sel = filterSelectionChange(doc, sel, options); }

    var bias = options && options.bias ||
      (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1);
    setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true));

    if (!(options && options.scroll === false) && doc.cm)
      { ensureCursorVisible(doc.cm); }
  }

  function setSelectionInner(doc, sel) {
    if (sel.equals(doc.sel)) { return }

    doc.sel = sel;

    if (doc.cm) {
      doc.cm.curOp.updateInput = 1;
      doc.cm.curOp.selectionChanged = true;
      signalCursorActivity(doc.cm);
    }
    signalLater(doc, "cursorActivity", doc);
  }

  // Verify that the selection does not partially select any atomic
  // marked ranges.
  function reCheckSelection(doc) {
    setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false));
  }

  // Return a selection that does not partially select any atomic
  // ranges.
  function skipAtomicInSelection(doc, sel, bias, mayClear) {
    var out;
    for (var i = 0; i < sel.ranges.length; i++) {
      var range = sel.ranges[i];
      var old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i];
      var newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear);
      var newHead = skipAtomic(doc, range.head, old && old.head, bias, mayClear);
      if (out || newAnchor != range.anchor || newHead != range.head) {
        if (!out) { out = sel.ranges.slice(0, i); }
        out[i] = new Range(newAnchor, newHead);
      }
    }
    return out ? normalizeSelection(doc.cm, out, sel.primIndex) : sel
  }

  function skipAtomicInner(doc, pos, oldPos, dir, mayClear) {
    var line = getLine(doc, pos.line);
    if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {
      var sp = line.markedSpans[i], m = sp.marker;

      // Determine if we should prevent the cursor being placed to the left/right of an atomic marker
      // Historically this was determined using the inclusiveLeft/Right option, but the new way to control it
      // is with selectLeft/Right
      var preventCursorLeft = ("selectLeft" in m) ? !m.selectLeft : m.inclusiveLeft;
      var preventCursorRight = ("selectRight" in m) ? !m.selectRight : m.inclusiveRight;

      if ((sp.from == null || (preventCursorLeft ? sp.from <= pos.ch : sp.from < pos.ch)) &&
          (sp.to == null || (preventCursorRight ? sp.to >= pos.ch : sp.to > pos.ch))) {
        if (mayClear) {
          signal(m, "beforeCursorEnter");
          if (m.explicitlyCleared) {
            if (!line.markedSpans) { break }
            else {--i; continue}
          }
        }
        if (!m.atomic) { continue }

        if (oldPos) {
          var near = m.find(dir < 0 ? 1 : -1), diff = (void 0);
          if (dir < 0 ? preventCursorRight : preventCursorLeft)
            { near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null); }
          if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0))
            { return skipAtomicInner(doc, near, pos, dir, mayClear) }
        }

        var far = m.find(dir < 0 ? -1 : 1);
        if (dir < 0 ? preventCursorLeft : preventCursorRight)
          { far = movePos(doc, far, dir, far.line == pos.line ? line : null); }
        return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null
      }
    } }
    return pos
  }

  // Ensure a given position is not inside an atomic range.
  function skipAtomic(doc, pos, oldPos, bias, mayClear) {
    var dir = bias || 1;
    var found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) ||
        (!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) ||
        skipAtomicInner(doc, pos, oldPos, -dir, mayClear) ||
        (!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true));
    if (!found) {
      doc.cantEdit = true;
      return Pos(doc.first, 0)
    }
    return found
  }

  function movePos(doc, pos, dir, line) {
    if (dir < 0 && pos.ch == 0) {
      if (pos.line > doc.first) { return clipPos(doc, Pos(pos.line - 1)) }
      else { return null }
    } else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) {
      if (pos.line < doc.first + doc.size - 1) { return Pos(pos.line + 1, 0) }
      else { return null }
    } else {
      return new Pos(pos.line, pos.ch + dir)
    }
  }

  function selectAll(cm) {
    cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll);
  }

  // UPDATING

  // Allow "beforeChange" event handlers to influence a change
  function filterChange(doc, change, update) {
    var obj = {
      canceled: false,
      from: change.from,
      to: change.to,
      text: change.text,
      origin: change.origin,
      cancel: function () { return obj.canceled = true; }
    };
    if (update) { obj.update = function (from, to, text, origin) {
      if (from) { obj.from = clipPos(doc, from); }
      if (to) { obj.to = clipPos(doc, to); }
      if (text) { obj.text = text; }
      if (origin !== undefined) { obj.origin = origin; }
    }; }
    signal(doc, "beforeChange", doc, obj);
    if (doc.cm) { signal(doc.cm, "beforeChange", doc.cm, obj); }

    if (obj.canceled) {
      if (doc.cm) { doc.cm.curOp.updateInput = 2; }
      return null
    }
    return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin}
  }

  // Apply a change to a document, and add it to the document's
  // history, and propagating it to all linked documents.
  function makeChange(doc, change, ignoreReadOnly) {
    if (doc.cm) {
      if (!doc.cm.curOp) { return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly) }
      if (doc.cm.state.suppressEdits) { return }
    }

    if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) {
      change = filterChange(doc, change, true);
      if (!change) { return }
    }

    // Possibly split or suppress the update based on the presence
    // of read-only spans in its range.
    var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to);
    if (split) {
      for (var i = split.length - 1; i >= 0; --i)
        { makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text, origin: change.origin}); }
    } else {
      makeChangeInner(doc, change);
    }
  }

  function makeChangeInner(doc, change) {
    if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) { return }
    var selAfter = computeSelAfterChange(doc, change);
    addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN);

    makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change));
    var rebased = [];

    linkedDocs(doc, function (doc, sharedHist) {
      if (!sharedHist && indexOf(rebased, doc.history) == -1) {
        rebaseHist(doc.history, change);
        rebased.push(doc.history);
      }
      makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change));
    });
  }

  // Revert a change stored in a document's history.
  function makeChangeFromHistory(doc, type, allowSelectionOnly) {
    var suppress = doc.cm && doc.cm.state.suppressEdits;
    if (suppress && !allowSelectionOnly) { return }

    var hist = doc.history, event, selAfter = doc.sel;
    var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done;

    // Verify that there is a useable event (so that ctrl-z won't
    // needlessly clear selection events)
    var i = 0;
    for (; i < source.length; i++) {
      event = source[i];
      if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges)
        { break }
    }
    if (i == source.length) { return }
    hist.lastOrigin = hist.lastSelOrigin = null;

    for (;;) {
      event = source.pop();
      if (event.ranges) {
        pushSelectionToHistory(event, dest);
        if (allowSelectionOnly && !event.equals(doc.sel)) {
          setSelection(doc, event, {clearRedo: false});
          return
        }
        selAfter = event;
      } else if (suppress) {
        source.push(event);
        return
      } else { break }
    }

    // Build up a reverse change object to add to the opposite history
    // stack (redo when undoing, and vice versa).
    var antiChanges = [];
    pushSelectionToHistory(selAfter, dest);
    dest.push({changes: antiChanges, generation: hist.generation});
    hist.generation = event.generation || ++hist.maxGeneration;

    var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange");

    var loop = function ( i ) {
      var change = event.changes[i];
      change.origin = type;
      if (filter && !filterChange(doc, change, false)) {
        source.length = 0;
        return {}
      }

      antiChanges.push(historyChangeFromChange(doc, change));

      var after = i ? computeSelAfterChange(doc, change) : lst(source);
      makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change));
      if (!i && doc.cm) { doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)}); }
      var rebased = [];

      // Propagate to the linked documents
      linkedDocs(doc, function (doc, sharedHist) {
        if (!sharedHist && indexOf(rebased, doc.history) == -1) {
          rebaseHist(doc.history, change);
          rebased.push(doc.history);
        }
        makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change));
      });
    };

    for (var i$1 = event.changes.length - 1; i$1 >= 0; --i$1) {
      var returned = loop( i$1 );

      if ( returned ) return returned.v;
    }
  }

  // Sub-views need their line numbers shifted when text is added
  // above or below them in the parent document.
  function shiftDoc(doc, distance) {
    if (distance == 0) { return }
    doc.first += distance;
    doc.sel = new Selection(map(doc.sel.ranges, function (range) { return new Range(
      Pos(range.anchor.line + distance, range.anchor.ch),
      Pos(range.head.line + distance, range.head.ch)
    ); }), doc.sel.primIndex);
    if (doc.cm) {
      regChange(doc.cm, doc.first, doc.first - distance, distance);
      for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++)
        { regLineChange(doc.cm, l, "gutter"); }
    }
  }

  // More lower-level change function, handling only a single document
  // (not linked ones).
  function makeChangeSingleDoc(doc, change, selAfter, spans) {
    if (doc.cm && !doc.cm.curOp)
      { return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans) }

    if (change.to.line < doc.first) {
      shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line));
      return
    }
    if (change.from.line > doc.lastLine()) { return }

    // Clip the change to the size of this doc
    if (change.from.line < doc.first) {
      var shift = change.text.length - 1 - (doc.first - change.from.line);
      shiftDoc(doc, shift);
      change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch),
                text: [lst(change.text)], origin: change.origin};
    }
    var last = doc.lastLine();
    if (change.to.line > last) {
      change = {from: change.from, to: Pos(last, getLine(doc, last).text.length),
                text: [change.text[0]], origin: change.origin};
    }

    change.removed = getBetween(doc, change.from, change.to);

    if (!selAfter) { selAfter = computeSelAfterChange(doc, change); }
    if (doc.cm) { makeChangeSingleDocInEditor(doc.cm, change, spans); }
    else { updateDoc(doc, change, spans); }
    setSelectionNoUndo(doc, selAfter, sel_dontScroll);

    if (doc.cantEdit && skipAtomic(doc, Pos(doc.firstLine(), 0)))
      { doc.cantEdit = false; }
  }

  // Handle the interaction of a change to a document with the editor
  // that this document is part of.
  function makeChangeSingleDocInEditor(cm, change, spans) {
    var doc = cm.doc, display = cm.display, from = change.from, to = change.to;

    var recomputeMaxLength = false, checkWidthStart = from.line;
    if (!cm.options.lineWrapping) {
      checkWidthStart = lineNo(visualLine(getLine(doc, from.line)));
      doc.iter(checkWidthStart, to.line + 1, function (line) {
        if (line == display.maxLine) {
          recomputeMaxLength = true;
          return true
        }
      });
    }

    if (doc.sel.contains(change.from, change.to) > -1)
      { signalCursorActivity(cm); }

    updateDoc(doc, change, spans, estimateHeight(cm));

    if (!cm.options.lineWrapping) {
      doc.iter(checkWidthStart, from.line + change.text.length, function (line) {
        var len = lineLength(line);
        if (len > display.maxLineLength) {
          display.maxLine = line;
          display.maxLineLength = len;
          display.maxLineChanged = true;
          recomputeMaxLength = false;
        }
      });
      if (recomputeMaxLength) { cm.curOp.updateMaxLine = true; }
    }

    retreatFrontier(doc, from.line);
    startWorker(cm, 400);

    var lendiff = change.text.length - (to.line - from.line) - 1;
    // Remember that these lines changed, for updating the display
    if (change.full)
      { regChange(cm); }
    else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change))
      { regLineChange(cm, from.line, "text"); }
    else
      { regChange(cm, from.line, to.line + 1, lendiff); }

    var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change");
    if (changeHandler || changesHandler) {
      var obj = {
        from: from, to: to,
        text: change.text,
        removed: change.removed,
        origin: change.origin
      };
      if (changeHandler) { signalLater(cm, "change", cm, obj); }
      if (changesHandler) { (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj); }
    }
    cm.display.selForContextMenu = null;
  }

  function replaceRange(doc, code, from, to, origin) {
    var assign;

    if (!to) { to = from; }
    if (cmp(to, from) < 0) { (assign = [to, from], from = assign[0], to = assign[1]); }
    if (typeof code == "string") { code = doc.splitLines(code); }
    makeChange(doc, {from: from, to: to, text: code, origin: origin});
  }

  // Rebasing/resetting history to deal with externally-sourced changes

  function rebaseHistSelSingle(pos, from, to, diff) {
    if (to < pos.line) {
      pos.line += diff;
    } else if (from < pos.line) {
      pos.line = from;
      pos.ch = 0;
    }
  }

  // Tries to rebase an array of history events given a change in the
  // document. If the change touches the same lines as the event, the
  // event, and everything 'behind' it, is discarded. If the change is
  // before the event, the event's positions are updated. Uses a
  // copy-on-write scheme for the positions, to avoid having to
  // reallocate them all on every rebase, but also avoid problems with
  // shared position objects being unsafely updated.
  function rebaseHistArray(array, from, to, diff) {
    for (var i = 0; i < array.length; ++i) {
      var sub = array[i], ok = true;
      if (sub.ranges) {
        if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; }
        for (var j = 0; j < sub.ranges.length; j++) {
          rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff);
          rebaseHistSelSingle(sub.ranges[j].head, from, to, diff);
        }
        continue
      }
      for (var j$1 = 0; j$1 < sub.changes.length; ++j$1) {
        var cur = sub.changes[j$1];
        if (to < cur.from.line) {
          cur.from = Pos(cur.from.line + diff, cur.from.ch);
          cur.to = Pos(cur.to.line + diff, cur.to.ch);
        } else if (from <= cur.to.line) {
          ok = false;
          break
        }
      }
      if (!ok) {
        array.splice(0, i + 1);
        i = 0;
      }
    }
  }

  function rebaseHist(hist, change) {
    var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1;
    rebaseHistArray(hist.done, from, to, diff);
    rebaseHistArray(hist.undone, from, to, diff);
  }

  // Utility for applying a change to a line by handle or number,
  // returning the number and optionally registering the line as
  // changed.
  function changeLine(doc, handle, changeType, op) {
    var no = handle, line = handle;
    if (typeof handle == "number") { line = getLine(doc, clipLine(doc, handle)); }
    else { no = lineNo(handle); }
    if (no == null) { return null }
    if (op(line, no) && doc.cm) { regLineChange(doc.cm, no, changeType); }
    return line
  }

  // The document is represented as a BTree consisting of leaves, with
  // chunk of lines in them, and branches, with up to ten leaves or
  // other branch nodes below them. The top node is always a branch
  // node, and is the document object itself (meaning it has
  // additional methods and properties).
  //
  // All nodes have parent links. The tree is used both to go from
  // line numbers to line objects, and to go from objects to numbers.
  // It also indexes by height, and is used to convert between height
  // and line object, and to find the total height of the document.
  //
  // See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html

  function LeafChunk(lines) {
    this.lines = lines;
    this.parent = null;
    var height = 0;
    for (var i = 0; i < lines.length; ++i) {
      lines[i].parent = this;
      height += lines[i].height;
    }
    this.height = height;
  }

  LeafChunk.prototype = {
    chunkSize: function() { return this.lines.length },

    // Remove the n lines at offset 'at'.
    removeInner: function(at, n) {
      for (var i = at, e = at + n; i < e; ++i) {
        var line = this.lines[i];
        this.height -= line.height;
        cleanUpLine(line);
        signalLater(line, "delete");
      }
      this.lines.splice(at, n);
    },

    // Helper used to collapse a small branch into a single leaf.
    collapse: function(lines) {
      lines.push.apply(lines, this.lines);
    },

    // Insert the given array of lines at offset 'at', count them as
    // having the given height.
    insertInner: function(at, lines, height) {
      this.height += height;
      this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));
      for (var i = 0; i < lines.length; ++i) { lines[i].parent = this; }
    },

    // Used to iterate over a part of the tree.
    iterN: function(at, n, op) {
      for (var e = at + n; at < e; ++at)
        { if (op(this.lines[at])) { return true } }
    }
  };

  function BranchChunk(children) {
    this.children = children;
    var size = 0, height = 0;
    for (var i = 0; i < children.length; ++i) {
      var ch = children[i];
      size += ch.chunkSize(); height += ch.height;
      ch.parent = this;
    }
    this.size = size;
    this.height = height;
    this.parent = null;
  }

  BranchChunk.prototype = {
    chunkSize: function() { return this.size },

    removeInner: function(at, n) {
      this.size -= n;
      for (var i = 0; i < this.children.length; ++i) {
        var child = this.children[i], sz = child.chunkSize();
        if (at < sz) {
          var rm = Math.min(n, sz - at), oldHeight = child.height;
          child.removeInner(at, rm);
          this.height -= oldHeight - child.height;
          if (sz == rm) { this.children.splice(i--, 1); child.parent = null; }
          if ((n -= rm) == 0) { break }
          at = 0;
        } else { at -= sz; }
      }
      // If the result is smaller than 25 lines, ensure that it is a
      // single leaf node.
      if (this.size - n < 25 &&
          (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) {
        var lines = [];
        this.collapse(lines);
        this.children = [new LeafChunk(lines)];
        this.children[0].parent = this;
      }
    },

    collapse: function(lines) {
      for (var i = 0; i < this.children.length; ++i) { this.children[i].collapse(lines); }
    },

    insertInner: function(at, lines, height) {
      this.size += lines.length;
      this.height += height;
      for (var i = 0; i < this.children.length; ++i) {
        var child = this.children[i], sz = child.chunkSize();
        if (at <= sz) {
          child.insertInner(at, lines, height);
          if (child.lines && child.lines.length > 50) {
            // To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced.
            // Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest.
            var remaining = child.lines.length % 25 + 25;
            for (var pos = remaining; pos < child.lines.length;) {
              var leaf = new LeafChunk(child.lines.slice(pos, pos += 25));
              child.height -= leaf.height;
              this.children.splice(++i, 0, leaf);
              leaf.parent = this;
            }
            child.lines = child.lines.slice(0, remaining);
            this.maybeSpill();
          }
          break
        }
        at -= sz;
      }
    },

    // When a node has grown, check whether it should be split.
    maybeSpill: function() {
      if (this.children.length <= 10) { return }
      var me = this;
      do {
        var spilled = me.children.splice(me.children.length - 5, 5);
        var sibling = new BranchChunk(spilled);
        if (!me.parent) { // Become the parent node
          var copy = new BranchChunk(me.children);
          copy.parent = me;
          me.children = [copy, sibling];
          me = copy;
       } else {
          me.size -= sibling.size;
          me.height -= sibling.height;
          var myIndex = indexOf(me.parent.children, me);
          me.parent.children.splice(myIndex + 1, 0, sibling);
        }
        sibling.parent = me.parent;
      } while (me.children.length > 10)
      me.parent.maybeSpill();
    },

    iterN: function(at, n, op) {
      for (var i = 0; i < this.children.length; ++i) {
        var child = this.children[i], sz = child.chunkSize();
        if (at < sz) {
          var used = Math.min(n, sz - at);
          if (child.iterN(at, used, op)) { return true }
          if ((n -= used) == 0) { break }
          at = 0;
        } else { at -= sz; }
      }
    }
  };

  // Line widgets are block elements displayed above or below a line.

  var LineWidget = function(doc, node, options) {
    if (options) { for (var opt in options) { if (options.hasOwnProperty(opt))
      { this[opt] = options[opt]; } } }
    this.doc = doc;
    this.node = node;
  };

  LineWidget.prototype.clear = function () {
    var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line);
    if (no == null || !ws) { return }
    for (var i = 0; i < ws.length; ++i) { if (ws[i] == this) { ws.splice(i--, 1); } }
    if (!ws.length) { line.widgets = null; }
    var height = widgetHeight(this);
    updateLineHeight(line, Math.max(0, line.height - height));
    if (cm) {
      runInOp(cm, function () {
        adjustScrollWhenAboveVisible(cm, line, -height);
        regLineChange(cm, no, "widget");
      });
      signalLater(cm, "lineWidgetCleared", cm, this, no);
    }
  };

  LineWidget.prototype.changed = function () {
      var this$1 = this;

    var oldH = this.height, cm = this.doc.cm, line = this.line;
    this.height = null;
    var diff = widgetHeight(this) - oldH;
    if (!diff) { return }
    if (!lineIsHidden(this.doc, line)) { updateLineHeight(line, line.height + diff); }
    if (cm) {
      runInOp(cm, function () {
        cm.curOp.forceUpdate = true;
        adjustScrollWhenAboveVisible(cm, line, diff);
        signalLater(cm, "lineWidgetChanged", cm, this$1, lineNo(line));
      });
    }
  };
  eventMixin(LineWidget);

  function adjustScrollWhenAboveVisible(cm, line, diff) {
    if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop))
      { addToScrollTop(cm, diff); }
  }

  function addLineWidget(doc, handle, node, options) {
    var widget = new LineWidget(doc, node, options);
    var cm = doc.cm;
    if (cm && widget.noHScroll) { cm.display.alignWidgets = true; }
    changeLine(doc, handle, "widget", function (line) {
      var widgets = line.widgets || (line.widgets = []);
      if (widget.insertAt == null) { widgets.push(widget); }
      else { widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget); }
      widget.line = line;
      if (cm && !lineIsHidden(doc, line)) {
        var aboveVisible = heightAtLine(line) < doc.scrollTop;
        updateLineHeight(line, line.height + widgetHeight(widget));
        if (aboveVisible) { addToScrollTop(cm, widget.height); }
        cm.curOp.forceUpdate = true;
      }
      return true
    });
    if (cm) { signalLater(cm, "lineWidgetAdded", cm, widget, typeof handle == "number" ? handle : lineNo(handle)); }
    return widget
  }

  // TEXTMARKERS

  // Created with markText and setBookmark methods. A TextMarker is a
  // handle that can be used to clear or find a marked position in the
  // document. Line objects hold arrays (markedSpans) containing
  // {from, to, marker} object pointing to such marker objects, and
  // indicating that such a marker is present on that line. Multiple
  // lines may point to the same marker when it spans across lines.
  // The spans will have null for their from/to properties when the
  // marker continues beyond the start/end of the line. Markers have
  // links back to the lines they currently touch.

  // Collapsed markers have unique ids, in order to be able to order
  // them, which is needed for uniquely determining an outer marker
  // when they overlap (they may nest, but not partially overlap).
  var nextMarkerId = 0;

  var TextMarker = function(doc, type) {
    this.lines = [];
    this.type = type;
    this.doc = doc;
    this.id = ++nextMarkerId;
  };

  // Clear the marker.
  TextMarker.prototype.clear = function () {
    if (this.explicitlyCleared) { return }
    var cm = this.doc.cm, withOp = cm && !cm.curOp;
    if (withOp) { startOperation(cm); }
    if (hasHandler(this, "clear")) {
      var found = this.find();
      if (found) { signalLater(this, "clear", found.from, found.to); }
    }
    var min = null, max = null;
    for (var i = 0; i < this.lines.length; ++i) {
      var line = this.lines[i];
      var span = getMarkedSpanFor(line.markedSpans, this);
      if (cm && !this.collapsed) { regLineChange(cm, lineNo(line), "text"); }
      else if (cm) {
        if (span.to != null) { max = lineNo(line); }
        if (span.from != null) { min = lineNo(line); }
      }
      line.markedSpans = removeMarkedSpan(line.markedSpans, span);
      if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm)
        { updateLineHeight(line, textHeight(cm.display)); }
    }
    if (cm && this.collapsed && !cm.options.lineWrapping) { for (var i$1 = 0; i$1 < this.lines.length; ++i$1) {
      var visual = visualLine(this.lines[i$1]), len = lineLength(visual);
      if (len > cm.display.maxLineLength) {
        cm.display.maxLine = visual;
        cm.display.maxLineLength = len;
        cm.display.maxLineChanged = true;
      }
    } }

    if (min != null && cm && this.collapsed) { regChange(cm, min, max + 1); }
    this.lines.length = 0;
    this.explicitlyCleared = true;
    if (this.atomic && this.doc.cantEdit) {
      this.doc.cantEdit = false;
      if (cm) { reCheckSelection(cm.doc); }
    }
    if (cm) { signalLater(cm, "markerCleared", cm, this, min, max); }
    if (withOp) { endOperation(cm); }
    if (this.parent) { this.parent.clear(); }
  };

  // Find the position of the marker in the document. Returns a {from,
  // to} object by default. Side can be passed to get a specific side
  // -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the
  // Pos objects returned contain a line object, rather than a line
  // number (used to prevent looking up the same line twice).
  TextMarker.prototype.find = function (side, lineObj) {
    if (side == null && this.type == "bookmark") { side = 1; }
    var from, to;
    for (var i = 0; i < this.lines.length; ++i) {
      var line = this.lines[i];
      var span = getMarkedSpanFor(line.markedSpans, this);
      if (span.from != null) {
        from = Pos(lineObj ? line : lineNo(line), span.from);
        if (side == -1) { return from }
      }
      if (span.to != null) {
        to = Pos(lineObj ? line : lineNo(line), span.to);
        if (side == 1) { return to }
      }
    }
    return from && {from: from, to: to}
  };

  // Signals that the marker's widget changed, and surrounding layout
  // should be recomputed.
  TextMarker.prototype.changed = function () {
      var this$1 = this;

    var pos = this.find(-1, true), widget = this, cm = this.doc.cm;
    if (!pos || !cm) { return }
    runInOp(cm, function () {
      var line = pos.line, lineN = lineNo(pos.line);
      var view = findViewForLine(cm, lineN);
      if (view) {
        clearLineMeasurementCacheFor(view);
        cm.curOp.selectionChanged = cm.curOp.forceUpdate = true;
      }
      cm.curOp.updateMaxLine = true;
      if (!lineIsHidden(widget.doc, line) && widget.height != null) {
        var oldHeight = widget.height;
        widget.height = null;
        var dHeight = widgetHeight(widget) - oldHeight;
        if (dHeight)
          { updateLineHeight(line, line.height + dHeight); }
      }
      signalLater(cm, "markerChanged", cm, this$1);
    });
  };

  TextMarker.prototype.attachLine = function (line) {
    if (!this.lines.length && this.doc.cm) {
      var op = this.doc.cm.curOp;
      if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)
        { (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this); }
    }
    this.lines.push(line);
  };

  TextMarker.prototype.detachLine = function (line) {
    this.lines.splice(indexOf(this.lines, line), 1);
    if (!this.lines.length && this.doc.cm) {
      var op = this.doc.cm.curOp
      ;(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this);
    }
  };
  eventMixin(TextMarker);

  // Create a marker, wire it up to the right lines, and
  function markText(doc, from, to, options, type) {
    // Shared markers (across linked documents) are handled separately
    // (markTextShared will call out to this again, once per
    // document).
    if (options && options.shared) { return markTextShared(doc, from, to, options, type) }
    // Ensure we are in an operation.
    if (doc.cm && !doc.cm.curOp) { return operation(doc.cm, markText)(doc, from, to, options, type) }

    var marker = new TextMarker(doc, type), diff = cmp(from, to);
    if (options) { copyObj(options, marker, false); }
    // Don't connect empty markers unless clearWhenEmpty is false
    if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false)
      { return marker }
    if (marker.replacedWith) {
      // Showing up as a widget implies collapsed (widget replaces text)
      marker.collapsed = true;
      marker.widgetNode = eltP("span", [marker.replacedWith], "CodeMirror-widget");
      if (!options.handleMouseEvents) { marker.widgetNode.setAttribute("cm-ignore-events", "true"); }
      if (options.insertLeft) { marker.widgetNode.insertLeft = true; }
    }
    if (marker.collapsed) {
      if (conflictingCollapsedRange(doc, from.line, from, to, marker) ||
          from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker))
        { throw new Error("Inserting collapsed marker partially overlapping an existing one") }
      seeCollapsedSpans();
    }

    if (marker.addToHistory)
      { addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN); }

    var curLine = from.line, cm = doc.cm, updateMaxLine;
    doc.iter(curLine, to.line + 1, function (line) {
      if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine)
        { updateMaxLine = true; }
      if (marker.collapsed && curLine != from.line) { updateLineHeight(line, 0); }
      addMarkedSpan(line, new MarkedSpan(marker,
                                         curLine == from.line ? from.ch : null,
                                         curLine == to.line ? to.ch : null));
      ++curLine;
    });
    // lineIsHidden depends on the presence of the spans, so needs a second pass
    if (marker.collapsed) { doc.iter(from.line, to.line + 1, function (line) {
      if (lineIsHidden(doc, line)) { updateLineHeight(line, 0); }
    }); }

    if (marker.clearOnEnter) { on(marker, "beforeCursorEnter", function () { return marker.clear(); }); }

    if (marker.readOnly) {
      seeReadOnlySpans();
      if (doc.history.done.length || doc.history.undone.length)
        { doc.clearHistory(); }
    }
    if (marker.collapsed) {
      marker.id = ++nextMarkerId;
      marker.atomic = true;
    }
    if (cm) {
      // Sync editor state
      if (updateMaxLine) { cm.curOp.updateMaxLine = true; }
      if (marker.collapsed)
        { regChange(cm, from.line, to.line + 1); }
      else if (marker.className || marker.startStyle || marker.endStyle || marker.css ||
               marker.attributes || marker.title)
        { for (var i = from.line; i <= to.line; i++) { regLineChange(cm, i, "text"); } }
      if (marker.atomic) { reCheckSelection(cm.doc); }
      signalLater(cm, "markerAdded", cm, marker);
    }
    return marker
  }

  // SHARED TEXTMARKERS

  // A shared marker spans multiple linked documents. It is
  // implemented as a meta-marker-object controlling multiple normal
  // markers.
  var SharedTextMarker = function(markers, primary) {
    this.markers = markers;
    this.primary = primary;
    for (var i = 0; i < markers.length; ++i)
      { markers[i].parent = this; }
  };

  SharedTextMarker.prototype.clear = function () {
    if (this.explicitlyCleared) { return }
    this.explicitlyCleared = true;
    for (var i = 0; i < this.markers.length; ++i)
      { this.markers[i].clear(); }
    signalLater(this, "clear");
  };

  SharedTextMarker.prototype.find = function (side, lineObj) {
    return this.primary.find(side, lineObj)
  };
  eventMixin(SharedTextMarker);

  function markTextShared(doc, from, to, options, type) {
    options = copyObj(options);
    options.shared = false;
    var markers = [markText(doc, from, to, options, type)], primary = markers[0];
    var widget = options.widgetNode;
    linkedDocs(doc, function (doc) {
      if (widget) { options.widgetNode = widget.cloneNode(true); }
      markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type));
      for (var i = 0; i < doc.linked.length; ++i)
        { if (doc.linked[i].isParent) { return } }
      primary = lst(markers);
    });
    return new SharedTextMarker(markers, primary)
  }

  function findSharedMarkers(doc) {
    return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), function (m) { return m.parent; })
  }

  function copySharedMarkers(doc, markers) {
    for (var i = 0; i < markers.length; i++) {
      var marker = markers[i], pos = marker.find();
      var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to);
      if (cmp(mFrom, mTo)) {
        var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type);
        marker.markers.push(subMark);
        subMark.parent = marker;
      }
    }
  }

  function detachSharedMarkers(markers) {
    var loop = function ( i ) {
      var marker = markers[i], linked = [marker.primary.doc];
      linkedDocs(marker.primary.doc, function (d) { return linked.push(d); });
      for (var j = 0; j < marker.markers.length; j++) {
        var subMarker = marker.markers[j];
        if (indexOf(linked, subMarker.doc) == -1) {
          subMarker.parent = null;
          marker.markers.splice(j--, 1);
        }
      }
    };

    for (var i = 0; i < markers.length; i++) loop( i );
  }

  var nextDocId = 0;
  var Doc = function(text, mode, firstLine, lineSep, direction) {
    if (!(this instanceof Doc)) { return new Doc(text, mode, firstLine, lineSep, direction) }
    if (firstLine == null) { firstLine = 0; }

    BranchChunk.call(this, [new LeafChunk([new Line("", null)])]);
    this.first = firstLine;
    this.scrollTop = this.scrollLeft = 0;
    this.cantEdit = false;
    this.cleanGeneration = 1;
    this.modeFrontier = this.highlightFrontier = firstLine;
    var start = Pos(firstLine, 0);
    this.sel = simpleSelection(start);
    this.history = new History(null);
    this.id = ++nextDocId;
    this.modeOption = mode;
    this.lineSep = lineSep;
    this.direction = (direction == "rtl") ? "rtl" : "ltr";
    this.extend = false;

    if (typeof text == "string") { text = this.splitLines(text); }
    updateDoc(this, {from: start, to: start, text: text});
    setSelection(this, simpleSelection(start), sel_dontScroll);
  };

  Doc.prototype = createObj(BranchChunk.prototype, {
    constructor: Doc,
    // Iterate over the document. Supports two forms -- with only one
    // argument, it calls that for each line in the document. With
    // three, it iterates over the range given by the first two (with
    // the second being non-inclusive).
    iter: function(from, to, op) {
      if (op) { this.iterN(from - this.first, to - from, op); }
      else { this.iterN(this.first, this.first + this.size, from); }
    },

    // Non-public interface for adding and removing lines.
    insert: function(at, lines) {
      var height = 0;
      for (var i = 0; i < lines.length; ++i) { height += lines[i].height; }
      this.insertInner(at - this.first, lines, height);
    },
    remove: function(at, n) { this.removeInner(at - this.first, n); },

    // From here, the methods are part of the public interface. Most
    // are also available from CodeMirror (editor) instances.

    getValue: function(lineSep) {
      var lines = getLines(this, this.first, this.first + this.size);
      if (lineSep === false) { return lines }
      return lines.join(lineSep || this.lineSeparator())
    },
    setValue: docMethodOp(function(code) {
      var top = Pos(this.first, 0), last = this.first + this.size - 1;
      makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length),
                        text: this.splitLines(code), origin: "setValue", full: true}, true);
      if (this.cm) { scrollToCoords(this.cm, 0, 0); }
      setSelection(this, simpleSelection(top), sel_dontScroll);
    }),
    replaceRange: function(code, from, to, origin) {
      from = clipPos(this, from);
      to = to ? clipPos(this, to) : from;
      replaceRange(this, code, from, to, origin);
    },
    getRange: function(from, to, lineSep) {
      var lines = getBetween(this, clipPos(this, from), clipPos(this, to));
      if (lineSep === false) { return lines }
      return lines.join(lineSep || this.lineSeparator())
    },

    getLine: function(line) {var l = this.getLineHandle(line); return l && l.text},

    getLineHandle: function(line) {if (isLine(this, line)) { return getLine(this, line) }},
    getLineNumber: function(line) {return lineNo(line)},

    getLineHandleVisualStart: function(line) {
      if (typeof line == "number") { line = getLine(this, line); }
      return visualLine(line)
    },

    lineCount: function() {return this.size},
    firstLine: function() {return this.first},
    lastLine: function() {return this.first + this.size - 1},

    clipPos: function(pos) {return clipPos(this, pos)},

    getCursor: function(start) {
      var range = this.sel.primary(), pos;
      if (start == null || start == "head") { pos = range.head; }
      else if (start == "anchor") { pos = range.anchor; }
      else if (start == "end" || start == "to" || start === false) { pos = range.to(); }
      else { pos = range.from(); }
      return pos
    },
    listSelections: function() { return this.sel.ranges },
    somethingSelected: function() {return this.sel.somethingSelected()},

    setCursor: docMethodOp(function(line, ch, options) {
      setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options);
    }),
    setSelection: docMethodOp(function(anchor, head, options) {
      setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options);
    }),
    extendSelection: docMethodOp(function(head, other, options) {
      extendSelection(this, clipPos(this, head), other && clipPos(this, other), options);
    }),
    extendSelections: docMethodOp(function(heads, options) {
      extendSelections(this, clipPosArray(this, heads), options);
    }),
    extendSelectionsBy: docMethodOp(function(f, options) {
      var heads = map(this.sel.ranges, f);
      extendSelections(this, clipPosArray(this, heads), options);
    }),
    setSelections: docMethodOp(function(ranges, primary, options) {
      if (!ranges.length) { return }
      var out = [];
      for (var i = 0; i < ranges.length; i++)
        { out[i] = new Range(clipPos(this, ranges[i].anchor),
                           clipPos(this, ranges[i].head)); }
      if (primary == null) { primary = Math.min(ranges.length - 1, this.sel.primIndex); }
      setSelection(this, normalizeSelection(this.cm, out, primary), options);
    }),
    addSelection: docMethodOp(function(anchor, head, options) {
      var ranges = this.sel.ranges.slice(0);
      ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor)));
      setSelection(this, normalizeSelection(this.cm, ranges, ranges.length - 1), options);
    }),

    getSelection: function(lineSep) {
      var ranges = this.sel.ranges, lines;
      for (var i = 0; i < ranges.length; i++) {
        var sel = getBetween(this, ranges[i].from(), ranges[i].to());
        lines = lines ? lines.concat(sel) : sel;
      }
      if (lineSep === false) { return lines }
      else { return lines.join(lineSep || this.lineSeparator()) }
    },
    getSelections: function(lineSep) {
      var parts = [], ranges = this.sel.ranges;
      for (var i = 0; i < ranges.length; i++) {
        var sel = getBetween(this, ranges[i].from(), ranges[i].to());
        if (lineSep !== false) { sel = sel.join(lineSep || this.lineSeparator()); }
        parts[i] = sel;
      }
      return parts
    },
    replaceSelection: function(code, collapse, origin) {
      var dup = [];
      for (var i = 0; i < this.sel.ranges.length; i++)
        { dup[i] = code; }
      this.replaceSelections(dup, collapse, origin || "+input");
    },
    replaceSelections: docMethodOp(function(code, collapse, origin) {
      var changes = [], sel = this.sel;
      for (var i = 0; i < sel.ranges.length; i++) {
        var range = sel.ranges[i];
        changes[i] = {from: range.from(), to: range.to(), text: this.splitLines(code[i]), origin: origin};
      }
      var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse);
      for (var i$1 = changes.length - 1; i$1 >= 0; i$1--)
        { makeChange(this, changes[i$1]); }
      if (newSel) { setSelectionReplaceHistory(this, newSel); }
      else if (this.cm) { ensureCursorVisible(this.cm); }
    }),
    undo: docMethodOp(function() {makeChangeFromHistory(this, "undo");}),
    redo: docMethodOp(function() {makeChangeFromHistory(this, "redo");}),
    undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true);}),
    redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true);}),

    setExtending: function(val) {this.extend = val;},
    getExtending: function() {return this.extend},

    historySize: function() {
      var hist = this.history, done = 0, undone = 0;
      for (var i = 0; i < hist.done.length; i++) { if (!hist.done[i].ranges) { ++done; } }
      for (var i$1 = 0; i$1 < hist.undone.length; i$1++) { if (!hist.undone[i$1].ranges) { ++undone; } }
      return {undo: done, redo: undone}
    },
    clearHistory: function() {
      var this$1 = this;

      this.history = new History(this.history.maxGeneration);
      linkedDocs(this, function (doc) { return doc.history = this$1.history; }, true);
    },

    markClean: function() {
      this.cleanGeneration = this.changeGeneration(true);
    },
    changeGeneration: function(forceSplit) {
      if (forceSplit)
        { this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null; }
      return this.history.generation
    },
    isClean: function (gen) {
      return this.history.generation == (gen || this.cleanGeneration)
    },

    getHistory: function() {
      return {done: copyHistoryArray(this.history.done),
              undone: copyHistoryArray(this.history.undone)}
    },
    setHistory: function(histData) {
      var hist = this.history = new History(this.history.maxGeneration);
      hist.done = copyHistoryArray(histData.done.slice(0), null, true);
      hist.undone = copyHistoryArray(histData.undone.slice(0), null, true);
    },

    setGutterMarker: docMethodOp(function(line, gutterID, value) {
      return changeLine(this, line, "gutter", function (line) {
        var markers = line.gutterMarkers || (line.gutterMarkers = {});
        markers[gutterID] = value;
        if (!value && isEmpty(markers)) { line.gutterMarkers = null; }
        return true
      })
    }),

    clearGutter: docMethodOp(function(gutterID) {
      var this$1 = this;

      this.iter(function (line) {
        if (line.gutterMarkers && line.gutterMarkers[gutterID]) {
          changeLine(this$1, line, "gutter", function () {
            line.gutterMarkers[gutterID] = null;
            if (isEmpty(line.gutterMarkers)) { line.gutterMarkers = null; }
            return true
          });
        }
      });
    }),

    lineInfo: function(line) {
      var n;
      if (typeof line == "number") {
        if (!isLine(this, line)) { return null }
        n = line;
        line = getLine(this, line);
        if (!line) { return null }
      } else {
        n = lineNo(line);
        if (n == null) { return null }
      }
      return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,
              textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass,
              widgets: line.widgets}
    },

    addLineClass: docMethodOp(function(handle, where, cls) {
      return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) {
        var prop = where == "text" ? "textClass"
                 : where == "background" ? "bgClass"
                 : where == "gutter" ? "gutterClass" : "wrapClass";
        if (!line[prop]) { line[prop] = cls; }
        else if (classTest(cls).test(line[prop])) { return false }
        else { line[prop] += " " + cls; }
        return true
      })
    }),
    removeLineClass: docMethodOp(function(handle, where, cls) {
      return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) {
        var prop = where == "text" ? "textClass"
                 : where == "background" ? "bgClass"
                 : where == "gutter" ? "gutterClass" : "wrapClass";
        var cur = line[prop];
        if (!cur) { return false }
        else if (cls == null) { line[prop] = null; }
        else {
          var found = cur.match(classTest(cls));
          if (!found) { return false }
          var end = found.index + found[0].length;
          line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null;
        }
        return true
      })
    }),

    addLineWidget: docMethodOp(function(handle, node, options) {
      return addLineWidget(this, handle, node, options)
    }),
    removeLineWidget: function(widget) { widget.clear(); },

    markText: function(from, to, options) {
      return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || "range")
    },
    setBookmark: function(pos, options) {
      var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options),
                      insertLeft: options && options.insertLeft,
                      clearWhenEmpty: false, shared: options && options.shared,
                      handleMouseEvents: options && options.handleMouseEvents};
      pos = clipPos(this, pos);
      return markText(this, pos, pos, realOpts, "bookmark")
    },
    findMarksAt: function(pos) {
      pos = clipPos(this, pos);
      var markers = [], spans = getLine(this, pos.line).markedSpans;
      if (spans) { for (var i = 0; i < spans.length; ++i) {
        var span = spans[i];
        if ((span.from == null || span.from <= pos.ch) &&
            (span.to == null || span.to >= pos.ch))
          { markers.push(span.marker.parent || span.marker); }
      } }
      return markers
    },
    findMarks: function(from, to, filter) {
      from = clipPos(this, from); to = clipPos(this, to);
      var found = [], lineNo = from.line;
      this.iter(from.line, to.line + 1, function (line) {
        var spans = line.markedSpans;
        if (spans) { for (var i = 0; i < spans.length; i++) {
          var span = spans[i];
          if (!(span.to != null && lineNo == from.line && from.ch >= span.to ||
                span.from == null && lineNo != from.line ||
                span.from != null && lineNo == to.line && span.from >= to.ch) &&
              (!filter || filter(span.marker)))
            { found.push(span.marker.parent || span.marker); }
        } }
        ++lineNo;
      });
      return found
    },
    getAllMarks: function() {
      var markers = [];
      this.iter(function (line) {
        var sps = line.markedSpans;
        if (sps) { for (var i = 0; i < sps.length; ++i)
          { if (sps[i].from != null) { markers.push(sps[i].marker); } } }
      });
      return markers
    },

    posFromIndex: function(off) {
      var ch, lineNo = this.first, sepSize = this.lineSeparator().length;
      this.iter(function (line) {
        var sz = line.text.length + sepSize;
        if (sz > off) { ch = off; return true }
        off -= sz;
        ++lineNo;
      });
      return clipPos(this, Pos(lineNo, ch))
    },
    indexFromPos: function (coords) {
      coords = clipPos(this, coords);
      var index = coords.ch;
      if (coords.line < this.first || coords.ch < 0) { return 0 }
      var sepSize = this.lineSeparator().length;
      this.iter(this.first, coords.line, function (line) { // iter aborts when callback returns a truthy value
        index += line.text.length + sepSize;
      });
      return index
    },

    copy: function(copyHistory) {
      var doc = new Doc(getLines(this, this.first, this.first + this.size),
                        this.modeOption, this.first, this.lineSep, this.direction);
      doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft;
      doc.sel = this.sel;
      doc.extend = false;
      if (copyHistory) {
        doc.history.undoDepth = this.history.undoDepth;
        doc.setHistory(this.getHistory());
      }
      return doc
    },

    linkedDoc: function(options) {
      if (!options) { options = {}; }
      var from = this.first, to = this.first + this.size;
      if (options.from != null && options.from > from) { from = options.from; }
      if (options.to != null && options.to < to) { to = options.to; }
      var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep, this.direction);
      if (options.sharedHist) { copy.history = this.history
      ; }(this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist});
      copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}];
      copySharedMarkers(copy, findSharedMarkers(this));
      return copy
    },
    unlinkDoc: function(other) {
      if (other instanceof CodeMirror) { other = other.doc; }
      if (this.linked) { for (var i = 0; i < this.linked.length; ++i) {
        var link = this.linked[i];
        if (link.doc != other) { continue }
        this.linked.splice(i, 1);
        other.unlinkDoc(this);
        detachSharedMarkers(findSharedMarkers(this));
        break
      } }
      // If the histories were shared, split them again
      if (other.history == this.history) {
        var splitIds = [other.id];
        linkedDocs(other, function (doc) { return splitIds.push(doc.id); }, true);
        other.history = new History(null);
        other.history.done = copyHistoryArray(this.history.done, splitIds);
        other.history.undone = copyHistoryArray(this.history.undone, splitIds);
      }
    },
    iterLinkedDocs: function(f) {linkedDocs(this, f);},

    getMode: function() {return this.mode},
    getEditor: function() {return this.cm},

    splitLines: function(str) {
      if (this.lineSep) { return str.split(this.lineSep) }
      return splitLinesAuto(str)
    },
    lineSeparator: function() { return this.lineSep || "\n" },

    setDirection: docMethodOp(function (dir) {
      if (dir != "rtl") { dir = "ltr"; }
      if (dir == this.direction) { return }
      this.direction = dir;
      this.iter(function (line) { return line.order = null; });
      if (this.cm) { directionChanged(this.cm); }
    })
  });

  // Public alias.
  Doc.prototype.eachLine = Doc.prototype.iter;

  // Kludge to work around strange IE behavior where it'll sometimes
  // re-fire a series of drag-related events right after the drop (#1551)
  var lastDrop = 0;

  function onDrop(e) {
    var cm = this;
    clearDragCursor(cm);
    if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e))
      { return }
    e_preventDefault(e);
    if (ie) { lastDrop = +new Date; }
    var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files;
    if (!pos || cm.isReadOnly()) { return }
    // Might be a file drop, in which case we simply extract the text
    // and insert it.
    if (files && files.length && window.FileReader && window.File) {
      var n = files.length, text = Array(n), read = 0;
      var markAsReadAndPasteIfAllFilesAreRead = function () {
        if (++read == n) {
          operation(cm, function () {
            pos = clipPos(cm.doc, pos);
            var change = {from: pos, to: pos,
                          text: cm.doc.splitLines(
                              text.filter(function (t) { return t != null; }).join(cm.doc.lineSeparator())),
                          origin: "paste"};
            makeChange(cm.doc, change);
            setSelectionReplaceHistory(cm.doc, simpleSelection(clipPos(cm.doc, pos), clipPos(cm.doc, changeEnd(change))));
          })();
        }
      };
      var readTextFromFile = function (file, i) {
        if (cm.options.allowDropFileTypes &&
            indexOf(cm.options.allowDropFileTypes, file.type) == -1) {
          markAsReadAndPasteIfAllFilesAreRead();
          return
        }
        var reader = new FileReader;
        reader.onerror = function () { return markAsReadAndPasteIfAllFilesAreRead(); };
        reader.onload = function () {
          var content = reader.result;
          if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) {
            markAsReadAndPasteIfAllFilesAreRead();
            return
          }
          text[i] = content;
          markAsReadAndPasteIfAllFilesAreRead();
        };
        reader.readAsText(file);
      };
      for (var i = 0; i < files.length; i++) { readTextFromFile(files[i], i); }
    } else { // Normal drop
      // Don't do a replace if the drop happened inside of the selected text.
      if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) {
        cm.state.draggingText(e);
        // Ensure the editor is re-focused
        setTimeout(function () { return cm.display.input.focus(); }, 20);
        return
      }
      try {
        var text$1 = e.dataTransfer.getData("Text");
        if (text$1) {
          var selected;
          if (cm.state.draggingText && !cm.state.draggingText.copy)
            { selected = cm.listSelections(); }
          setSelectionNoUndo(cm.doc, simpleSelection(pos, pos));
          if (selected) { for (var i$1 = 0; i$1 < selected.length; ++i$1)
            { replaceRange(cm.doc, "", selected[i$1].anchor, selected[i$1].head, "drag"); } }
          cm.replaceSelection(text$1, "around", "paste");
          cm.display.input.focus();
        }
      }
      catch(e$1){}
    }
  }

  function onDragStart(cm, e) {
    if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return }
    if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) { return }

    e.dataTransfer.setData("Text", cm.getSelection());
    e.dataTransfer.effectAllowed = "copyMove";

    // Use dummy image instead of default browsers image.
    // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.
    if (e.dataTransfer.setDragImage && !safari) {
      var img = elt("img", null, null, "position: fixed; left: 0; top: 0;");
      img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==";
      if (presto) {
        img.width = img.height = 1;
        cm.display.wrapper.appendChild(img);
        // Force a relayout, or Opera won't use our image for some obscure reason
        img._top = img.offsetTop;
      }
      e.dataTransfer.setDragImage(img, 0, 0);
      if (presto) { img.parentNode.removeChild(img); }
    }
  }

  function onDragOver(cm, e) {
    var pos = posFromMouse(cm, e);
    if (!pos) { return }
    var frag = document.createDocumentFragment();
    drawSelectionCursor(cm, pos, frag);
    if (!cm.display.dragCursor) {
      cm.display.dragCursor = elt("div", null, "CodeMirror-cursors CodeMirror-dragcursors");
      cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv);
    }
    removeChildrenAndAdd(cm.display.dragCursor, frag);
  }

  function clearDragCursor(cm) {
    if (cm.display.dragCursor) {
      cm.display.lineSpace.removeChild(cm.display.dragCursor);
      cm.display.dragCursor = null;
    }
  }

  // These must be handled carefully, because naively registering a
  // handler for each editor will cause the editors to never be
  // garbage collected.

  function forEachCodeMirror(f) {
    if (!document.getElementsByClassName) { return }
    var byClass = document.getElementsByClassName("CodeMirror"), editors = [];
    for (var i = 0; i < byClass.length; i++) {
      var cm = byClass[i].CodeMirror;
      if (cm) { editors.push(cm); }
    }
    if (editors.length) { editors[0].operation(function () {
      for (var i = 0; i < editors.length; i++) { f(editors[i]); }
    }); }
  }

  var globalsRegistered = false;
  function ensureGlobalHandlers() {
    if (globalsRegistered) { return }
    registerGlobalHandlers();
    globalsRegistered = true;
  }
  function registerGlobalHandlers() {
    // When the window resizes, we need to refresh active editors.
    var resizeTimer;
    on(window, "resize", function () {
      if (resizeTimer == null) { resizeTimer = setTimeout(function () {
        resizeTimer = null;
        forEachCodeMirror(onResize);
      }, 100); }
    });
    // When the window loses focus, we want to show the editor as blurred
    on(window, "blur", function () { return forEachCodeMirror(onBlur); });
  }
  // Called when the window resizes
  function onResize(cm) {
    var d = cm.display;
    // Might be a text scaling operation, clear size caches.
    d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
    d.scrollbarsClipped = false;
    cm.setSize();
  }

  var keyNames = {
    3: "Pause", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
    19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
    36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
    46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod",
    106: "*", 107: "=", 109: "-", 110: ".", 111: "/", 145: "ScrollLock",
    173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\",
    221: "]", 222: "'", 224: "Mod", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete",
    63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert"
  };

  // Number keys
  for (var i = 0; i < 10; i++) { keyNames[i + 48] = keyNames[i + 96] = String(i); }
  // Alphabetic keys
  for (var i$1 = 65; i$1 <= 90; i$1++) { keyNames[i$1] = String.fromCharCode(i$1); }
  // Function keys
  for (var i$2 = 1; i$2 <= 12; i$2++) { keyNames[i$2 + 111] = keyNames[i$2 + 63235] = "F" + i$2; }

  var keyMap = {};

  keyMap.basic = {
    "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
    "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
    "Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore",
    "Tab": "defaultTab", "Shift-Tab": "indentAuto",
    "Enter": "newlineAndIndent", "Insert": "toggleOverwrite",
    "Esc": "singleSelection"
  };
  // Note that the save and find-related commands aren't defined by
  // default. User code or addons can define them. Unknown commands
  // are simply ignored.
  keyMap.pcDefault = {
    "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
    "Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown",
    "Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
    "Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find",
    "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
    "Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
    "Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection",
    "fallthrough": "basic"
  };
  // Very basic readline/emacs-style bindings, which are standard on Mac.
  keyMap.emacsy = {
    "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
    "Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd",
    "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore",
    "Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars",
    "Ctrl-O": "openLine"
  };
  keyMap.macDefault = {
    "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
    "Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft",
    "Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore",
    "Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find",
    "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
    "Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight",
    "Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd",
    "fallthrough": ["basic", "emacsy"]
  };
  keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault;

  // KEYMAP DISPATCH

  function normalizeKeyName(name) {
    var parts = name.split(/-(?!$)/);
    name = parts[parts.length - 1];
    var alt, ctrl, shift, cmd;
    for (var i = 0; i < parts.length - 1; i++) {
      var mod = parts[i];
      if (/^(cmd|meta|m)$/i.test(mod)) { cmd = true; }
      else if (/^a(lt)?$/i.test(mod)) { alt = true; }
      else if (/^(c|ctrl|control)$/i.test(mod)) { ctrl = true; }
      else if (/^s(hift)?$/i.test(mod)) { shift = true; }
      else { throw new Error("Unrecognized modifier name: " + mod) }
    }
    if (alt) { name = "Alt-" + name; }
    if (ctrl) { name = "Ctrl-" + name; }
    if (cmd) { name = "Cmd-" + name; }
    if (shift) { name = "Shift-" + name; }
    return name
  }

  // This is a kludge to keep keymaps mostly working as raw objects
  // (backwards compatibility) while at the same time support features
  // like normalization and multi-stroke key bindings. It compiles a
  // new normalized keymap, and then updates the old object to reflect
  // this.
  function normalizeKeyMap(keymap) {
    var copy = {};
    for (var keyname in keymap) { if (keymap.hasOwnProperty(keyname)) {
      var value = keymap[keyname];
      if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) { continue }
      if (value == "...") { delete keymap[keyname]; continue }

      var keys = map(keyname.split(" "), normalizeKeyName);
      for (var i = 0; i < keys.length; i++) {
        var val = (void 0), name = (void 0);
        if (i == keys.length - 1) {
          name = keys.join(" ");
          val = value;
        } else {
          name = keys.slice(0, i + 1).join(" ");
          val = "...";
        }
        var prev = copy[name];
        if (!prev) { copy[name] = val; }
        else if (prev != val) { throw new Error("Inconsistent bindings for " + name) }
      }
      delete keymap[keyname];
    } }
    for (var prop in copy) { keymap[prop] = copy[prop]; }
    return keymap
  }

  function lookupKey(key, map, handle, context) {
    map = getKeyMap(map);
    var found = map.call ? map.call(key, context) : map[key];
    if (found === false) { return "nothing" }
    if (found === "...") { return "multi" }
    if (found != null && handle(found)) { return "handled" }

    if (map.fallthrough) {
      if (Object.prototype.toString.call(map.fallthrough) != "[object Array]")
        { return lookupKey(key, map.fallthrough, handle, context) }
      for (var i = 0; i < map.fallthrough.length; i++) {
        var result = lookupKey(key, map.fallthrough[i], handle, context);
        if (result) { return result }
      }
    }
  }

  // Modifier key presses don't count as 'real' key presses for the
  // purpose of keymap fallthrough.
  function isModifierKey(value) {
    var name = typeof value == "string" ? value : keyNames[value.keyCode];
    return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod"
  }

  function addModifierNames(name, event, noShift) {
    var base = name;
    if (event.altKey && base != "Alt") { name = "Alt-" + name; }
    if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") { name = "Ctrl-" + name; }
    if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Mod") { name = "Cmd-" + name; }
    if (!noShift && event.shiftKey && base != "Shift") { name = "Shift-" + name; }
    return name
  }

  // Look up the name of a key as indicated by an event object.
  function keyName(event, noShift) {
    if (presto && event.keyCode == 34 && event["char"]) { return false }
    var name = keyNames[event.keyCode];
    if (name == null || event.altGraphKey) { return false }
    // Ctrl-ScrollLock has keyCode 3, same as Ctrl-Pause,
    // so we'll use event.code when available (Chrome 48+, FF 38+, Safari 10.1+)
    if (event.keyCode == 3 && event.code) { name = event.code; }
    return addModifierNames(name, event, noShift)
  }

  function getKeyMap(val) {
    return typeof val == "string" ? keyMap[val] : val
  }

  // Helper for deleting text near the selection(s), used to implement
  // backspace, delete, and similar functionality.
  function deleteNearSelection(cm, compute) {
    var ranges = cm.doc.sel.ranges, kill = [];
    // Build up a set of ranges to kill first, merging overlapping
    // ranges.
    for (var i = 0; i < ranges.length; i++) {
      var toKill = compute(ranges[i]);
      while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) {
        var replaced = kill.pop();
        if (cmp(replaced.from, toKill.from) < 0) {
          toKill.from = replaced.from;
          break
        }
      }
      kill.push(toKill);
    }
    // Next, remove those actual ranges.
    runInOp(cm, function () {
      for (var i = kill.length - 1; i >= 0; i--)
        { replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete"); }
      ensureCursorVisible(cm);
    });
  }

  function moveCharLogically(line, ch, dir) {
    var target = skipExtendingChars(line.text, ch + dir, dir);
    return target < 0 || target > line.text.length ? null : target
  }

  function moveLogically(line, start, dir) {
    var ch = moveCharLogically(line, start.ch, dir);
    return ch == null ? null : new Pos(start.line, ch, dir < 0 ? "after" : "before")
  }

  function endOfLine(visually, cm, lineObj, lineNo, dir) {
    if (visually) {
      if (cm.doc.direction == "rtl") { dir = -dir; }
      var order = getOrder(lineObj, cm.doc.direction);
      if (order) {
        var part = dir < 0 ? lst(order) : order[0];
        var moveInStorageOrder = (dir < 0) == (part.level == 1);
        var sticky = moveInStorageOrder ? "after" : "before";
        var ch;
        // With a wrapped rtl chunk (possibly spanning multiple bidi parts),
        // it could be that the last bidi part is not on the last visual line,
        // since visual lines contain content order-consecutive chunks.
        // Thus, in rtl, we are looking for the first (content-order) character
        // in the rtl chunk that is on the last line (that is, the same line
        // as the last (content-order) character).
        if (part.level > 0 || cm.doc.direction == "rtl") {
          var prep = prepareMeasureForLine(cm, lineObj);
          ch = dir < 0 ? lineObj.text.length - 1 : 0;
          var targetTop = measureCharPrepared(cm, prep, ch).top;
          ch = findFirst(function (ch) { return measureCharPrepared(cm, prep, ch).top == targetTop; }, (dir < 0) == (part.level == 1) ? part.from : part.to - 1, ch);
          if (sticky == "before") { ch = moveCharLogically(lineObj, ch, 1); }
        } else { ch = dir < 0 ? part.to : part.from; }
        return new Pos(lineNo, ch, sticky)
      }
    }
    return new Pos(lineNo, dir < 0 ? lineObj.text.length : 0, dir < 0 ? "before" : "after")
  }

  function moveVisually(cm, line, start, dir) {
    var bidi = getOrder(line, cm.doc.direction);
    if (!bidi) { return moveLogically(line, start, dir) }
    if (start.ch >= line.text.length) {
      start.ch = line.text.length;
      start.sticky = "before";
    } else if (start.ch <= 0) {
      start.ch = 0;
      start.sticky = "after";
    }
    var partPos = getBidiPartAt(bidi, start.ch, start.sticky), part = bidi[partPos];
    if (cm.doc.direction == "ltr" && part.level % 2 == 0 && (dir > 0 ? part.to > start.ch : part.from < start.ch)) {
      // Case 1: We move within an ltr part in an ltr editor. Even with wrapped lines,
      // nothing interesting happens.
      return moveLogically(line, start, dir)
    }

    var mv = function (pos, dir) { return moveCharLogically(line, pos instanceof Pos ? pos.ch : pos, dir); };
    var prep;
    var getWrappedLineExtent = function (ch) {
      if (!cm.options.lineWrapping) { return {begin: 0, end: line.text.length} }
      prep = prep || prepareMeasureForLine(cm, line);
      return wrappedLineExtentChar(cm, line, prep, ch)
    };
    var wrappedLineExtent = getWrappedLineExtent(start.sticky == "before" ? mv(start, -1) : start.ch);

    if (cm.doc.direction == "rtl" || part.level == 1) {
      var moveInStorageOrder = (part.level == 1) == (dir < 0);
      var ch = mv(start, moveInStorageOrder ? 1 : -1);
      if (ch != null && (!moveInStorageOrder ? ch >= part.from && ch >= wrappedLineExtent.begin : ch <= part.to && ch <= wrappedLineExtent.end)) {
        // Case 2: We move within an rtl part or in an rtl editor on the same visual line
        var sticky = moveInStorageOrder ? "before" : "after";
        return new Pos(start.line, ch, sticky)
      }
    }

    // Case 3: Could not move within this bidi part in this visual line, so leave
    // the current bidi part

    var searchInVisualLine = function (partPos, dir, wrappedLineExtent) {
      var getRes = function (ch, moveInStorageOrder) { return moveInStorageOrder
        ? new Pos(start.line, mv(ch, 1), "before")
        : new Pos(start.line, ch, "after"); };

      for (; partPos >= 0 && partPos < bidi.length; partPos += dir) {
        var part = bidi[partPos];
        var moveInStorageOrder = (dir > 0) == (part.level != 1);
        var ch = moveInStorageOrder ? wrappedLineExtent.begin : mv(wrappedLineExtent.end, -1);
        if (part.from <= ch && ch < part.to) { return getRes(ch, moveInStorageOrder) }
        ch = moveInStorageOrder ? part.from : mv(part.to, -1);
        if (wrappedLineExtent.begin <= ch && ch < wrappedLineExtent.end) { return getRes(ch, moveInStorageOrder) }
      }
    };

    // Case 3a: Look for other bidi parts on the same visual line
    var res = searchInVisualLine(partPos + dir, dir, wrappedLineExtent);
    if (res) { return res }

    // Case 3b: Look for other bidi parts on the next visual line
    var nextCh = dir > 0 ? wrappedLineExtent.end : mv(wrappedLineExtent.begin, -1);
    if (nextCh != null && !(dir > 0 && nextCh == line.text.length)) {
      res = searchInVisualLine(dir > 0 ? 0 : bidi.length - 1, dir, getWrappedLineExtent(nextCh));
      if (res) { return res }
    }

    // Case 4: Nowhere to move
    return null
  }

  // Commands are parameter-less actions that can be performed on an
  // editor, mostly used for keybindings.
  var commands = {
    selectAll: selectAll,
    singleSelection: function (cm) { return cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll); },
    killLine: function (cm) { return deleteNearSelection(cm, function (range) {
      if (range.empty()) {
        var len = getLine(cm.doc, range.head.line).text.length;
        if (range.head.ch == len && range.head.line < cm.lastLine())
          { return {from: range.head, to: Pos(range.head.line + 1, 0)} }
        else
          { return {from: range.head, to: Pos(range.head.line, len)} }
      } else {
        return {from: range.from(), to: range.to()}
      }
    }); },
    deleteLine: function (cm) { return deleteNearSelection(cm, function (range) { return ({
      from: Pos(range.from().line, 0),
      to: clipPos(cm.doc, Pos(range.to().line + 1, 0))
    }); }); },
    delLineLeft: function (cm) { return deleteNearSelection(cm, function (range) { return ({
      from: Pos(range.from().line, 0), to: range.from()
    }); }); },
    delWrappedLineLeft: function (cm) { return deleteNearSelection(cm, function (range) {
      var top = cm.charCoords(range.head, "div").top + 5;
      var leftPos = cm.coordsChar({left: 0, top: top}, "div");
      return {from: leftPos, to: range.from()}
    }); },
    delWrappedLineRight: function (cm) { return deleteNearSelection(cm, function (range) {
      var top = cm.charCoords(range.head, "div").top + 5;
      var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div");
      return {from: range.from(), to: rightPos }
    }); },
    undo: function (cm) { return cm.undo(); },
    redo: function (cm) { return cm.redo(); },
    undoSelection: function (cm) { return cm.undoSelection(); },
    redoSelection: function (cm) { return cm.redoSelection(); },
    goDocStart: function (cm) { return cm.extendSelection(Pos(cm.firstLine(), 0)); },
    goDocEnd: function (cm) { return cm.extendSelection(Pos(cm.lastLine())); },
    goLineStart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStart(cm, range.head.line); },
      {origin: "+move", bias: 1}
    ); },
    goLineStartSmart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStartSmart(cm, range.head); },
      {origin: "+move", bias: 1}
    ); },
    goLineEnd: function (cm) { return cm.extendSelectionsBy(function (range) { return lineEnd(cm, range.head.line); },
      {origin: "+move", bias: -1}
    ); },
    goLineRight: function (cm) { return cm.extendSelectionsBy(function (range) {
      var top = cm.cursorCoords(range.head, "div").top + 5;
      return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div")
    }, sel_move); },
    goLineLeft: function (cm) { return cm.extendSelectionsBy(function (range) {
      var top = cm.cursorCoords(range.head, "div").top + 5;
      return cm.coordsChar({left: 0, top: top}, "div")
    }, sel_move); },
    goLineLeftSmart: function (cm) { return cm.extendSelectionsBy(function (range) {
      var top = cm.cursorCoords(range.head, "div").top + 5;
      var pos = cm.coordsChar({left: 0, top: top}, "div");
      if (pos.ch < cm.getLine(pos.line).search(/\S/)) { return lineStartSmart(cm, range.head) }
      return pos
    }, sel_move); },
    goLineUp: function (cm) { return cm.moveV(-1, "line"); },
    goLineDown: function (cm) { return cm.moveV(1, "line"); },
    goPageUp: function (cm) { return cm.moveV(-1, "page"); },
    goPageDown: function (cm) { return cm.moveV(1, "page"); },
    goCharLeft: function (cm) { return cm.moveH(-1, "char"); },
    goCharRight: function (cm) { return cm.moveH(1, "char"); },
    goColumnLeft: function (cm) { return cm.moveH(-1, "column"); },
    goColumnRight: function (cm) { return cm.moveH(1, "column"); },
    goWordLeft: function (cm) { return cm.moveH(-1, "word"); },
    goGroupRight: function (cm) { return cm.moveH(1, "group"); },
    goGroupLeft: function (cm) { return cm.moveH(-1, "group"); },
    goWordRight: function (cm) { return cm.moveH(1, "word"); },
    delCharBefore: function (cm) { return cm.deleteH(-1, "codepoint"); },
    delCharAfter: function (cm) { return cm.deleteH(1, "char"); },
    delWordBefore: function (cm) { return cm.deleteH(-1, "word"); },
    delWordAfter: function (cm) { return cm.deleteH(1, "word"); },
    delGroupBefore: function (cm) { return cm.deleteH(-1, "group"); },
    delGroupAfter: function (cm) { return cm.deleteH(1, "group"); },
    indentAuto: function (cm) { return cm.indentSelection("smart"); },
    indentMore: function (cm) { return cm.indentSelection("add"); },
    indentLess: function (cm) { return cm.indentSelection("subtract"); },
    insertTab: function (cm) { return cm.replaceSelection("\t"); },
    insertSoftTab: function (cm) {
      var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize;
      for (var i = 0; i < ranges.length; i++) {
        var pos = ranges[i].from();
        var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize);
        spaces.push(spaceStr(tabSize - col % tabSize));
      }
      cm.replaceSelections(spaces);
    },
    defaultTab: function (cm) {
      if (cm.somethingSelected()) { cm.indentSelection("add"); }
      else { cm.execCommand("insertTab"); }
    },
    // Swap the two chars left and right of each selection's head.
    // Move cursor behind the two swapped characters afterwards.
    //
    // Doesn't consider line feeds a character.
    // Doesn't scan more than one line above to find a character.
    // Doesn't do anything on an empty line.
    // Doesn't do anything with non-empty selections.
    transposeChars: function (cm) { return runInOp(cm, function () {
      var ranges = cm.listSelections(), newSel = [];
      for (var i = 0; i < ranges.length; i++) {
        if (!ranges[i].empty()) { continue }
        var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text;
        if (line) {
          if (cur.ch == line.length) { cur = new Pos(cur.line, cur.ch - 1); }
          if (cur.ch > 0) {
            cur = new Pos(cur.line, cur.ch + 1);
            cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2),
                            Pos(cur.line, cur.ch - 2), cur, "+transpose");
          } else if (cur.line > cm.doc.first) {
            var prev = getLine(cm.doc, cur.line - 1).text;
            if (prev) {
              cur = new Pos(cur.line, 1);
              cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() +
                              prev.charAt(prev.length - 1),
                              Pos(cur.line - 1, prev.length - 1), cur, "+transpose");
            }
          }
        }
        newSel.push(new Range(cur, cur));
      }
      cm.setSelections(newSel);
    }); },
    newlineAndIndent: function (cm) { return runInOp(cm, function () {
      var sels = cm.listSelections();
      for (var i = sels.length - 1; i >= 0; i--)
        { cm.replaceRange(cm.doc.lineSeparator(), sels[i].anchor, sels[i].head, "+input"); }
      sels = cm.listSelections();
      for (var i$1 = 0; i$1 < sels.length; i$1++)
        { cm.indentLine(sels[i$1].from().line, null, true); }
      ensureCursorVisible(cm);
    }); },
    openLine: function (cm) { return cm.replaceSelection("\n", "start"); },
    toggleOverwrite: function (cm) { return cm.toggleOverwrite(); }
  };


  function lineStart(cm, lineN) {
    var line = getLine(cm.doc, lineN);
    var visual = visualLine(line);
    if (visual != line) { lineN = lineNo(visual); }
    return endOfLine(true, cm, visual, lineN, 1)
  }
  function lineEnd(cm, lineN) {
    var line = getLine(cm.doc, lineN);
    var visual = visualLineEnd(line);
    if (visual != line) { lineN = lineNo(visual); }
    return endOfLine(true, cm, line, lineN, -1)
  }
  function lineStartSmart(cm, pos) {
    var start = lineStart(cm, pos.line);
    var line = getLine(cm.doc, start.line);
    var order = getOrder(line, cm.doc.direction);
    if (!order || order[0].level == 0) {
      var firstNonWS = Math.max(start.ch, line.text.search(/\S/));
      var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch;
      return Pos(start.line, inWS ? 0 : firstNonWS, start.sticky)
    }
    return start
  }

  // Run a handler that was bound to a key.
  function doHandleBinding(cm, bound, dropShift) {
    if (typeof bound == "string") {
      bound = commands[bound];
      if (!bound) { return false }
    }
    // Ensure previous input has been read, so that the handler sees a
    // consistent view of the document
    cm.display.input.ensurePolled();
    var prevShift = cm.display.shift, done = false;
    try {
      if (cm.isReadOnly()) { cm.state.suppressEdits = true; }
      if (dropShift) { cm.display.shift = false; }
      done = bound(cm) != Pass;
    } finally {
      cm.display.shift = prevShift;
      cm.state.suppressEdits = false;
    }
    return done
  }

  function lookupKeyForEditor(cm, name, handle) {
    for (var i = 0; i < cm.state.keyMaps.length; i++) {
      var result = lookupKey(name, cm.state.keyMaps[i], handle, cm);
      if (result) { return result }
    }
    return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm))
      || lookupKey(name, cm.options.keyMap, handle, cm)
  }

  // Note that, despite the name, this function is also used to check
  // for bound mouse clicks.

  var stopSeq = new Delayed;

  function dispatchKey(cm, name, e, handle) {
    var seq = cm.state.keySeq;
    if (seq) {
      if (isModifierKey(name)) { return "handled" }
      if (/\'$/.test(name))
        { cm.state.keySeq = null; }
      else
        { stopSeq.set(50, function () {
          if (cm.state.keySeq == seq) {
            cm.state.keySeq = null;
            cm.display.input.reset();
          }
        }); }
      if (dispatchKeyInner(cm, seq + " " + name, e, handle)) { return true }
    }
    return dispatchKeyInner(cm, name, e, handle)
  }

  function dispatchKeyInner(cm, name, e, handle) {
    var result = lookupKeyForEditor(cm, name, handle);

    if (result == "multi")
      { cm.state.keySeq = name; }
    if (result == "handled")
      { signalLater(cm, "keyHandled", cm, name, e); }

    if (result == "handled" || result == "multi") {
      e_preventDefault(e);
      restartBlink(cm);
    }

    return !!result
  }

  // Handle a key from the keydown event.
  function handleKeyBinding(cm, e) {
    var name = keyName(e, true);
    if (!name) { return false }

    if (e.shiftKey && !cm.state.keySeq) {
      // First try to resolve full name (including 'Shift-'). Failing
      // that, see if there is a cursor-motion command (starting with
      // 'go') bound to the keyname without 'Shift-'.
      return dispatchKey(cm, "Shift-" + name, e, function (b) { return doHandleBinding(cm, b, true); })
          || dispatchKey(cm, name, e, function (b) {
               if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion)
                 { return doHandleBinding(cm, b) }
             })
    } else {
      return dispatchKey(cm, name, e, function (b) { return doHandleBinding(cm, b); })
    }
  }

  // Handle a key from the keypress event
  function handleCharBinding(cm, e, ch) {
    return dispatchKey(cm, "'" + ch + "'", e, function (b) { return doHandleBinding(cm, b, true); })
  }

  var lastStoppedKey = null;
  function onKeyDown(e) {
    var cm = this;
    if (e.target && e.target != cm.display.input.getField()) { return }
    cm.curOp.focus = activeElt();
    if (signalDOMEvent(cm, e)) { return }
    // IE does strange things with escape.
    if (ie && ie_version < 11 && e.keyCode == 27) { e.returnValue = false; }
    var code = e.keyCode;
    cm.display.shift = code == 16 || e.shiftKey;
    var handled = handleKeyBinding(cm, e);
    if (presto) {
      lastStoppedKey = handled ? code : null;
      // Opera has no cut event... we try to at least catch the key combo
      if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey))
        { cm.replaceSelection("", null, "cut"); }
    }
    if (gecko && !mac && !handled && code == 46 && e.shiftKey && !e.ctrlKey && document.execCommand)
      { document.execCommand("cut"); }

    // Turn mouse into crosshair when Alt is held on Mac.
    if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className))
      { showCrossHair(cm); }
  }

  function showCrossHair(cm) {
    var lineDiv = cm.display.lineDiv;
    addClass(lineDiv, "CodeMirror-crosshair");

    function up(e) {
      if (e.keyCode == 18 || !e.altKey) {
        rmClass(lineDiv, "CodeMirror-crosshair");
        off(document, "keyup", up);
        off(document, "mouseover", up);
      }
    }
    on(document, "keyup", up);
    on(document, "mouseover", up);
  }

  function onKeyUp(e) {
    if (e.keyCode == 16) { this.doc.sel.shift = false; }
    signalDOMEvent(this, e);
  }

  function onKeyPress(e) {
    var cm = this;
    if (e.target && e.target != cm.display.input.getField()) { return }
    if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) { return }
    var keyCode = e.keyCode, charCode = e.charCode;
    if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return}
    if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) { return }
    var ch = String.fromCharCode(charCode == null ? keyCode : charCode);
    // Some browsers fire keypress events for backspace
    if (ch == "\x08") { return }
    if (handleCharBinding(cm, e, ch)) { return }
    cm.display.input.onKeyPress(e);
  }

  var DOUBLECLICK_DELAY = 400;

  var PastClick = function(time, pos, button) {
    this.time = time;
    this.pos = pos;
    this.button = button;
  };

  PastClick.prototype.compare = function (time, pos, button) {
    return this.time + DOUBLECLICK_DELAY > time &&
      cmp(pos, this.pos) == 0 && button == this.button
  };

  var lastClick, lastDoubleClick;
  function clickRepeat(pos, button) {
    var now = +new Date;
    if (lastDoubleClick && lastDoubleClick.compare(now, pos, button)) {
      lastClick = lastDoubleClick = null;
      return "triple"
    } else if (lastClick && lastClick.compare(now, pos, button)) {
      lastDoubleClick = new PastClick(now, pos, button);
      lastClick = null;
      return "double"
    } else {
      lastClick = new PastClick(now, pos, button);
      lastDoubleClick = null;
      return "single"
    }
  }

  // A mouse down can be a single click, double click, triple click,
  // start of selection drag, start of text drag, new cursor
  // (ctrl-click), rectangle drag (alt-drag), or xwin
  // middle-click-paste. Or it might be a click on something we should
  // not interfere with, such as a scrollbar or widget.
  function onMouseDown(e) {
    var cm = this, display = cm.display;
    if (signalDOMEvent(cm, e) || display.activeTouch && display.input.supportsTouch()) { return }
    display.input.ensurePolled();
    display.shift = e.shiftKey;

    if (eventInWidget(display, e)) {
      if (!webkit) {
        // Briefly turn off draggability, to allow widgets to do
        // normal dragging things.
        display.scroller.draggable = false;
        setTimeout(function () { return display.scroller.draggable = true; }, 100);
      }
      return
    }
    if (clickInGutter(cm, e)) { return }
    var pos = posFromMouse(cm, e), button = e_button(e), repeat = pos ? clickRepeat(pos, button) : "single";
    window.focus();

    // #3261: make sure, that we're not starting a second selection
    if (button == 1 && cm.state.selectingText)
      { cm.state.selectingText(e); }

    if (pos && handleMappedButton(cm, button, pos, repeat, e)) { return }

    if (button == 1) {
      if (pos) { leftButtonDown(cm, pos, repeat, e); }
      else if (e_target(e) == display.scroller) { e_preventDefault(e); }
    } else if (button == 2) {
      if (pos) { extendSelection(cm.doc, pos); }
      setTimeout(function () { return display.input.focus(); }, 20);
    } else if (button == 3) {
      if (captureRightClick) { cm.display.input.onContextMenu(e); }
      else { delayBlurEvent(cm); }
    }
  }

  function handleMappedButton(cm, button, pos, repeat, event) {
    var name = "Click";
    if (repeat == "double") { name = "Double" + name; }
    else if (repeat == "triple") { name = "Triple" + name; }
    name = (button == 1 ? "Left" : button == 2 ? "Middle" : "Right") + name;

    return dispatchKey(cm,  addModifierNames(name, event), event, function (bound) {
      if (typeof bound == "string") { bound = commands[bound]; }
      if (!bound) { return false }
      var done = false;
      try {
        if (cm.isReadOnly()) { cm.state.suppressEdits = true; }
        done = bound(cm, pos) != Pass;
      } finally {
        cm.state.suppressEdits = false;
      }
      return done
    })
  }

  function configureMouse(cm, repeat, event) {
    var option = cm.getOption("configureMouse");
    var value = option ? option(cm, repeat, event) : {};
    if (value.unit == null) {
      var rect = chromeOS ? event.shiftKey && event.metaKey : event.altKey;
      value.unit = rect ? "rectangle" : repeat == "single" ? "char" : repeat == "double" ? "word" : "line";
    }
    if (value.extend == null || cm.doc.extend) { value.extend = cm.doc.extend || event.shiftKey; }
    if (value.addNew == null) { value.addNew = mac ? event.metaKey : event.ctrlKey; }
    if (value.moveOnDrag == null) { value.moveOnDrag = !(mac ? event.altKey : event.ctrlKey); }
    return value
  }

  function leftButtonDown(cm, pos, repeat, event) {
    if (ie) { setTimeout(bind(ensureFocus, cm), 0); }
    else { cm.curOp.focus = activeElt(); }

    var behavior = configureMouse(cm, repeat, event);

    var sel = cm.doc.sel, contained;
    if (cm.options.dragDrop && dragAndDrop && !cm.isReadOnly() &&
        repeat == "single" && (contained = sel.contains(pos)) > -1 &&
        (cmp((contained = sel.ranges[contained]).from(), pos) < 0 || pos.xRel > 0) &&
        (cmp(contained.to(), pos) > 0 || pos.xRel < 0))
      { leftButtonStartDrag(cm, event, pos, behavior); }
    else
      { leftButtonSelect(cm, event, pos, behavior); }
  }

  // Start a text drag. When it ends, see if any dragging actually
  // happen, and treat as a click if it didn't.
  function leftButtonStartDrag(cm, event, pos, behavior) {
    var display = cm.display, moved = false;
    var dragEnd = operation(cm, function (e) {
      if (webkit) { display.scroller.draggable = false; }
      cm.state.draggingText = false;
      off(display.wrapper.ownerDocument, "mouseup", dragEnd);
      off(display.wrapper.ownerDocument, "mousemove", mouseMove);
      off(display.scroller, "dragstart", dragStart);
      off(display.scroller, "drop", dragEnd);
      if (!moved) {
        e_preventDefault(e);
        if (!behavior.addNew)
          { extendSelection(cm.doc, pos, null, null, behavior.extend); }
        // Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081)
        if ((webkit && !safari) || ie && ie_version == 9)
          { setTimeout(function () {display.wrapper.ownerDocument.body.focus({preventScroll: true}); display.input.focus();}, 20); }
        else
          { display.input.focus(); }
      }
    });
    var mouseMove = function(e2) {
      moved = moved || Math.abs(event.clientX - e2.clientX) + Math.abs(event.clientY - e2.clientY) >= 10;
    };
    var dragStart = function () { return moved = true; };
    // Let the drag handler handle this.
    if (webkit) { display.scroller.draggable = true; }
    cm.state.draggingText = dragEnd;
    dragEnd.copy = !behavior.moveOnDrag;
    // IE's approach to draggable
    if (display.scroller.dragDrop) { display.scroller.dragDrop(); }
    on(display.wrapper.ownerDocument, "mouseup", dragEnd);
    on(display.wrapper.ownerDocument, "mousemove", mouseMove);
    on(display.scroller, "dragstart", dragStart);
    on(display.scroller, "drop", dragEnd);

    delayBlurEvent(cm);
    setTimeout(function () { return display.input.focus(); }, 20);
  }

  function rangeForUnit(cm, pos, unit) {
    if (unit == "char") { return new Range(pos, pos) }
    if (unit == "word") { return cm.findWordAt(pos) }
    if (unit == "line") { return new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))) }
    var result = unit(cm, pos);
    return new Range(result.from, result.to)
  }

  // Normal selection, as opposed to text dragging.
  function leftButtonSelect(cm, event, start, behavior) {
    var display = cm.display, doc = cm.doc;
    e_preventDefault(event);

    var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges;
    if (behavior.addNew && !behavior.extend) {
      ourIndex = doc.sel.contains(start);
      if (ourIndex > -1)
        { ourRange = ranges[ourIndex]; }
      else
        { ourRange = new Range(start, start); }
    } else {
      ourRange = doc.sel.primary();
      ourIndex = doc.sel.primIndex;
    }

    if (behavior.unit == "rectangle") {
      if (!behavior.addNew) { ourRange = new Range(start, start); }
      start = posFromMouse(cm, event, true, true);
      ourIndex = -1;
    } else {
      var range = rangeForUnit(cm, start, behavior.unit);
      if (behavior.extend)
        { ourRange = extendRange(ourRange, range.anchor, range.head, behavior.extend); }
      else
        { ourRange = range; }
    }

    if (!behavior.addNew) {
      ourIndex = 0;
      setSelection(doc, new Selection([ourRange], 0), sel_mouse);
      startSel = doc.sel;
    } else if (ourIndex == -1) {
      ourIndex = ranges.length;
      setSelection(doc, normalizeSelection(cm, ranges.concat([ourRange]), ourIndex),
                   {scroll: false, origin: "*mouse"});
    } else if (ranges.length > 1 && ranges[ourIndex].empty() && behavior.unit == "char" && !behavior.extend) {
      setSelection(doc, normalizeSelection(cm, ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0),
                   {scroll: false, origin: "*mouse"});
      startSel = doc.sel;
    } else {
      replaceOneSelection(doc, ourIndex, ourRange, sel_mouse);
    }

    var lastPos = start;
    function extendTo(pos) {
      if (cmp(lastPos, pos) == 0) { return }
      lastPos = pos;

      if (behavior.unit == "rectangle") {
        var ranges = [], tabSize = cm.options.tabSize;
        var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize);
        var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize);
        var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol);
        for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line));
             line <= end; line++) {
          var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize);
          if (left == right)
            { ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos))); }
          else if (text.length > leftPos)
            { ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize)))); }
        }
        if (!ranges.length) { ranges.push(new Range(start, start)); }
        setSelection(doc, normalizeSelection(cm, startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex),
                     {origin: "*mouse", scroll: false});
        cm.scrollIntoView(pos);
      } else {
        var oldRange = ourRange;
        var range = rangeForUnit(cm, pos, behavior.unit);
        var anchor = oldRange.anchor, head;
        if (cmp(range.anchor, anchor) > 0) {
          head = range.head;
          anchor = minPos(oldRange.from(), range.anchor);
        } else {
          head = range.anchor;
          anchor = maxPos(oldRange.to(), range.head);
        }
        var ranges$1 = startSel.ranges.slice(0);
        ranges$1[ourIndex] = bidiSimplify(cm, new Range(clipPos(doc, anchor), head));
        setSelection(doc, normalizeSelection(cm, ranges$1, ourIndex), sel_mouse);
      }
    }

    var editorSize = display.wrapper.getBoundingClientRect();
    // Used to ensure timeout re-tries don't fire when another extend
    // happened in the meantime (clearTimeout isn't reliable -- at
    // least on Chrome, the timeouts still happen even when cleared,
    // if the clear happens after their scheduled firing time).
    var counter = 0;

    function extend(e) {
      var curCount = ++counter;
      var cur = posFromMouse(cm, e, true, behavior.unit == "rectangle");
      if (!cur) { return }
      if (cmp(cur, lastPos) != 0) {
        cm.curOp.focus = activeElt();
        extendTo(cur);
        var visible = visibleLines(display, doc);
        if (cur.line >= visible.to || cur.line < visible.from)
          { setTimeout(operation(cm, function () {if (counter == curCount) { extend(e); }}), 150); }
      } else {
        var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0;
        if (outside) { setTimeout(operation(cm, function () {
          if (counter != curCount) { return }
          display.scroller.scrollTop += outside;
          extend(e);
        }), 50); }
      }
    }

    function done(e) {
      cm.state.selectingText = false;
      counter = Infinity;
      // If e is null or undefined we interpret this as someone trying
      // to explicitly cancel the selection rather than the user
      // letting go of the mouse button.
      if (e) {
        e_preventDefault(e);
        display.input.focus();
      }
      off(display.wrapper.ownerDocument, "mousemove", move);
      off(display.wrapper.ownerDocument, "mouseup", up);
      doc.history.lastSelOrigin = null;
    }

    var move = operation(cm, function (e) {
      if (e.buttons === 0 || !e_button(e)) { done(e); }
      else { extend(e); }
    });
    var up = operation(cm, done);
    cm.state.selectingText = up;
    on(display.wrapper.ownerDocument, "mousemove", move);
    on(display.wrapper.ownerDocument, "mouseup", up);
  }

  // Used when mouse-selecting to adjust the anchor to the proper side
  // of a bidi jump depending on the visual position of the head.
  function bidiSimplify(cm, range) {
    var anchor = range.anchor;
    var head = range.head;
    var anchorLine = getLine(cm.doc, anchor.line);
    if (cmp(anchor, head) == 0 && anchor.sticky == head.sticky) { return range }
    var order = getOrder(anchorLine);
    if (!order) { return range }
    var index = getBidiPartAt(order, anchor.ch, anchor.sticky), part = order[index];
    if (part.from != anchor.ch && part.to != anchor.ch) { return range }
    var boundary = index + ((part.from == anchor.ch) == (part.level != 1) ? 0 : 1);
    if (boundary == 0 || boundary == order.length) { return range }

    // Compute the relative visual position of the head compared to the
    // anchor (<0 is to the left, >0 to the right)
    var leftSide;
    if (head.line != anchor.line) {
      leftSide = (head.line - anchor.line) * (cm.doc.direction == "ltr" ? 1 : -1) > 0;
    } else {
      var headIndex = getBidiPartAt(order, head.ch, head.sticky);
      var dir = headIndex - index || (head.ch - anchor.ch) * (part.level == 1 ? -1 : 1);
      if (headIndex == boundary - 1 || headIndex == boundary)
        { leftSide = dir < 0; }
      else
        { leftSide = dir > 0; }
    }

    var usePart = order[boundary + (leftSide ? -1 : 0)];
    var from = leftSide == (usePart.level == 1);
    var ch = from ? usePart.from : usePart.to, sticky = from ? "after" : "before";
    return anchor.ch == ch && anchor.sticky == sticky ? range : new Range(new Pos(anchor.line, ch, sticky), head)
  }


  // Determines whether an event happened in the gutter, and fires the
  // handlers for the corresponding event.
  function gutterEvent(cm, e, type, prevent) {
    var mX, mY;
    if (e.touches) {
      mX = e.touches[0].clientX;
      mY = e.touches[0].clientY;
    } else {
      try { mX = e.clientX; mY = e.clientY; }
      catch(e$1) { return false }
    }
    if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) { return false }
    if (prevent) { e_preventDefault(e); }

    var display = cm.display;
    var lineBox = display.lineDiv.getBoundingClientRect();

    if (mY > lineBox.bottom || !hasHandler(cm, type)) { return e_defaultPrevented(e) }
    mY -= lineBox.top - display.viewOffset;

    for (var i = 0; i < cm.display.gutterSpecs.length; ++i) {
      var g = display.gutters.childNodes[i];
      if (g && g.getBoundingClientRect().right >= mX) {
        var line = lineAtHeight(cm.doc, mY);
        var gutter = cm.display.gutterSpecs[i];
        signal(cm, type, cm, line, gutter.className, e);
        return e_defaultPrevented(e)
      }
    }
  }

  function clickInGutter(cm, e) {
    return gutterEvent(cm, e, "gutterClick", true)
  }

  // CONTEXT MENU HANDLING

  // To make the context menu work, we need to briefly unhide the
  // textarea (making it as unobtrusive as possible) to let the
  // right-click take effect on it.
  function onContextMenu(cm, e) {
    if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) { return }
    if (signalDOMEvent(cm, e, "contextmenu")) { return }
    if (!captureRightClick) { cm.display.input.onContextMenu(e); }
  }

  function contextMenuInGutter(cm, e) {
    if (!hasHandler(cm, "gutterContextMenu")) { return false }
    return gutterEvent(cm, e, "gutterContextMenu", false)
  }

  function themeChanged(cm) {
    cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") +
      cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-");
    clearCaches(cm);
  }

  var Init = {toString: function(){return "CodeMirror.Init"}};

  var defaults = {};
  var optionHandlers = {};

  function defineOptions(CodeMirror) {
    var optionHandlers = CodeMirror.optionHandlers;

    function option(name, deflt, handle, notOnInit) {
      CodeMirror.defaults[name] = deflt;
      if (handle) { optionHandlers[name] =
        notOnInit ? function (cm, val, old) {if (old != Init) { handle(cm, val, old); }} : handle; }
    }

    CodeMirror.defineOption = option;

    // Passed to option handlers when there is no old value.
    CodeMirror.Init = Init;

    // These two are, on init, called from the constructor because they
    // have to be initialized before the editor can start at all.
    option("value", "", function (cm, val) { return cm.setValue(val); }, true);
    option("mode", null, function (cm, val) {
      cm.doc.modeOption = val;
      loadMode(cm);
    }, true);

    option("indentUnit", 2, loadMode, true);
    option("indentWithTabs", false);
    option("smartIndent", true);
    option("tabSize", 4, function (cm) {
      resetModeState(cm);
      clearCaches(cm);
      regChange(cm);
    }, true);

    option("lineSeparator", null, function (cm, val) {
      cm.doc.lineSep = val;
      if (!val) { return }
      var newBreaks = [], lineNo = cm.doc.first;
      cm.doc.iter(function (line) {
        for (var pos = 0;;) {
          var found = line.text.indexOf(val, pos);
          if (found == -1) { break }
          pos = found + val.length;
          newBreaks.push(Pos(lineNo, found));
        }
        lineNo++;
      });
      for (var i = newBreaks.length - 1; i >= 0; i--)
        { replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length)); }
    });
    option("specialChars", /[\u0000-\u001f\u007f-\u009f\u00ad\u061c\u200b-\u200c\u200e\u200f\u2028\u2029\ufeff\ufff9-\ufffc]/g, function (cm, val, old) {
      cm.state.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g");
      if (old != Init) { cm.refresh(); }
    });
    option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function (cm) { return cm.refresh(); }, true);
    option("electricChars", true);
    option("inputStyle", mobile ? "contenteditable" : "textarea", function () {
      throw new Error("inputStyle can not (yet) be changed in a running editor") // FIXME
    }, true);
    option("spellcheck", false, function (cm, val) { return cm.getInputField().spellcheck = val; }, true);
    option("autocorrect", false, function (cm, val) { return cm.getInputField().autocorrect = val; }, true);
    option("autocapitalize", false, function (cm, val) { return cm.getInputField().autocapitalize = val; }, true);
    option("rtlMoveVisually", !windows);
    option("wholeLineUpdateBefore", true);

    option("theme", "default", function (cm) {
      themeChanged(cm);
      updateGutters(cm);
    }, true);
    option("keyMap", "default", function (cm, val, old) {
      var next = getKeyMap(val);
      var prev = old != Init && getKeyMap(old);
      if (prev && prev.detach) { prev.detach(cm, next); }
      if (next.attach) { next.attach(cm, prev || null); }
    });
    option("extraKeys", null);
    option("configureMouse", null);

    option("lineWrapping", false, wrappingChanged, true);
    option("gutters", [], function (cm, val) {
      cm.display.gutterSpecs = getGutters(val, cm.options.lineNumbers);
      updateGutters(cm);
    }, true);
    option("fixedGutter", true, function (cm, val) {
      cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0";
      cm.refresh();
    }, true);
    option("coverGutterNextToScrollbar", false, function (cm) { return updateScrollbars(cm); }, true);
    option("scrollbarStyle", "native", function (cm) {
      initScrollbars(cm);
      updateScrollbars(cm);
      cm.display.scrollbars.setScrollTop(cm.doc.scrollTop);
      cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft);
    }, true);
    option("lineNumbers", false, function (cm, val) {
      cm.display.gutterSpecs = getGutters(cm.options.gutters, val);
      updateGutters(cm);
    }, true);
    option("firstLineNumber", 1, updateGutters, true);
    option("lineNumberFormatter", function (integer) { return integer; }, updateGutters, true);
    option("showCursorWhenSelecting", false, updateSelection, true);

    option("resetSelectionOnContextMenu", true);
    option("lineWiseCopyCut", true);
    option("pasteLinesPerSelection", true);
    option("selectionsMayTouch", false);

    option("readOnly", false, function (cm, val) {
      if (val == "nocursor") {
        onBlur(cm);
        cm.display.input.blur();
      }
      cm.display.input.readOnlyChanged(val);
    });

    option("screenReaderLabel", null, function (cm, val) {
      val = (val === '') ? null : val;
      cm.display.input.screenReaderLabelChanged(val);
    });

    option("disableInput", false, function (cm, val) {if (!val) { cm.display.input.reset(); }}, true);
    option("dragDrop", true, dragDropChanged);
    option("allowDropFileTypes", null);

    option("cursorBlinkRate", 530);
    option("cursorScrollMargin", 0);
    option("cursorHeight", 1, updateSelection, true);
    option("singleCursorHeightPerLine", true, updateSelection, true);
    option("workTime", 100);
    option("workDelay", 100);
    option("flattenSpans", true, resetModeState, true);
    option("addModeClass", false, resetModeState, true);
    option("pollInterval", 100);
    option("undoDepth", 200, function (cm, val) { return cm.doc.history.undoDepth = val; });
    option("historyEventDelay", 1250);
    option("viewportMargin", 10, function (cm) { return cm.refresh(); }, true);
    option("maxHighlightLength", 10000, resetModeState, true);
    option("moveInputWithCursor", true, function (cm, val) {
      if (!val) { cm.display.input.resetPosition(); }
    });

    option("tabindex", null, function (cm, val) { return cm.display.input.getField().tabIndex = val || ""; });
    option("autofocus", null);
    option("direction", "ltr", function (cm, val) { return cm.doc.setDirection(val); }, true);
    option("phrases", null);
  }

  function dragDropChanged(cm, value, old) {
    var wasOn = old && old != Init;
    if (!value != !wasOn) {
      var funcs = cm.display.dragFunctions;
      var toggle = value ? on : off;
      toggle(cm.display.scroller, "dragstart", funcs.start);
      toggle(cm.display.scroller, "dragenter", funcs.enter);
      toggle(cm.display.scroller, "dragover", funcs.over);
      toggle(cm.display.scroller, "dragleave", funcs.leave);
      toggle(cm.display.scroller, "drop", funcs.drop);
    }
  }

  function wrappingChanged(cm) {
    if (cm.options.lineWrapping) {
      addClass(cm.display.wrapper, "CodeMirror-wrap");
      cm.display.sizer.style.minWidth = "";
      cm.display.sizerWidth = null;
    } else {
      rmClass(cm.display.wrapper, "CodeMirror-wrap");
      findMaxLine(cm);
    }
    estimateLineHeights(cm);
    regChange(cm);
    clearCaches(cm);
    setTimeout(function () { return updateScrollbars(cm); }, 100);
  }

  // A CodeMirror instance represents an editor. This is the object
  // that user code is usually dealing with.

  function CodeMirror(place, options) {
    var this$1 = this;

    if (!(this instanceof CodeMirror)) { return new CodeMirror(place, options) }

    this.options = options = options ? copyObj(options) : {};
    // Determine effective options based on given values and defaults.
    copyObj(defaults, options, false);

    var doc = options.value;
    if (typeof doc == "string") { doc = new Doc(doc, options.mode, null, options.lineSeparator, options.direction); }
    else if (options.mode) { doc.modeOption = options.mode; }
    this.doc = doc;

    var input = new CodeMirror.inputStyles[options.inputStyle](this);
    var display = this.display = new Display(place, doc, input, options);
    display.wrapper.CodeMirror = this;
    themeChanged(this);
    if (options.lineWrapping)
      { this.display.wrapper.className += " CodeMirror-wrap"; }
    initScrollbars(this);

    this.state = {
      keyMaps: [],  // stores maps added by addKeyMap
      overlays: [], // highlighting overlays, as added by addOverlay
      modeGen: 0,   // bumped when mode/overlay changes, used to invalidate highlighting info
      overwrite: false,
      delayingBlurEvent: false,
      focused: false,
      suppressEdits: false, // used to disable editing during key handlers when in readOnly mode
      pasteIncoming: -1, cutIncoming: -1, // help recognize paste/cut edits in input.poll
      selectingText: false,
      draggingText: false,
      highlight: new Delayed(), // stores highlight worker timeout
      keySeq: null,  // Unfinished key sequence
      specialChars: null
    };

    if (options.autofocus && !mobile) { display.input.focus(); }

    // Override magic textarea content restore that IE sometimes does
    // on our hidden textarea on reload
    if (ie && ie_version < 11) { setTimeout(function () { return this$1.display.input.reset(true); }, 20); }

    registerEventHandlers(this);
    ensureGlobalHandlers();

    startOperation(this);
    this.curOp.forceUpdate = true;
    attachDoc(this, doc);

    if ((options.autofocus && !mobile) || this.hasFocus())
      { setTimeout(function () {
        if (this$1.hasFocus() && !this$1.state.focused) { onFocus(this$1); }
      }, 20); }
    else
      { onBlur(this); }

    for (var opt in optionHandlers) { if (optionHandlers.hasOwnProperty(opt))
      { optionHandlers[opt](this, options[opt], Init); } }
    maybeUpdateLineNumberWidth(this);
    if (options.finishInit) { options.finishInit(this); }
    for (var i = 0; i < initHooks.length; ++i) { initHooks[i](this); }
    endOperation(this);
    // Suppress optimizelegibility in Webkit, since it breaks text
    // measuring on line wrapping boundaries.
    if (webkit && options.lineWrapping &&
        getComputedStyle(display.lineDiv).textRendering == "optimizelegibility")
      { display.lineDiv.style.textRendering = "auto"; }
  }

  // The default configuration options.
  CodeMirror.defaults = defaults;
  // Functions to run when options are changed.
  CodeMirror.optionHandlers = optionHandlers;

  // Attach the necessary event handlers when initializing the editor
  function registerEventHandlers(cm) {
    var d = cm.display;
    on(d.scroller, "mousedown", operation(cm, onMouseDown));
    // Older IE's will not fire a second mousedown for a double click
    if (ie && ie_version < 11)
      { on(d.scroller, "dblclick", operation(cm, function (e) {
        if (signalDOMEvent(cm, e)) { return }
        var pos = posFromMouse(cm, e);
        if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) { return }
        e_preventDefault(e);
        var word = cm.findWordAt(pos);
        extendSelection(cm.doc, word.anchor, word.head);
      })); }
    else
      { on(d.scroller, "dblclick", function (e) { return signalDOMEvent(cm, e) || e_preventDefault(e); }); }
    // Some browsers fire contextmenu *after* opening the menu, at
    // which point we can't mess with it anymore. Context menu is
    // handled in onMouseDown for these browsers.
    on(d.scroller, "contextmenu", function (e) { return onContextMenu(cm, e); });
    on(d.input.getField(), "contextmenu", function (e) {
      if (!d.scroller.contains(e.target)) { onContextMenu(cm, e); }
    });

    // Used to suppress mouse event handling when a touch happens
    var touchFinished, prevTouch = {end: 0};
    function finishTouch() {
      if (d.activeTouch) {
        touchFinished = setTimeout(function () { return d.activeTouch = null; }, 1000);
        prevTouch = d.activeTouch;
        prevTouch.end = +new Date;
      }
    }
    function isMouseLikeTouchEvent(e) {
      if (e.touches.length != 1) { return false }
      var touch = e.touches[0];
      return touch.radiusX <= 1 && touch.radiusY <= 1
    }
    function farAway(touch, other) {
      if (other.left == null) { return true }
      var dx = other.left - touch.left, dy = other.top - touch.top;
      return dx * dx + dy * dy > 20 * 20
    }
    on(d.scroller, "touchstart", function (e) {
      if (!signalDOMEvent(cm, e) && !isMouseLikeTouchEvent(e) && !clickInGutter(cm, e)) {
        d.input.ensurePolled();
        clearTimeout(touchFinished);
        var now = +new Date;
        d.activeTouch = {start: now, moved: false,
                         prev: now - prevTouch.end <= 300 ? prevTouch : null};
        if (e.touches.length == 1) {
          d.activeTouch.left = e.touches[0].pageX;
          d.activeTouch.top = e.touches[0].pageY;
        }
      }
    });
    on(d.scroller, "touchmove", function () {
      if (d.activeTouch) { d.activeTouch.moved = true; }
    });
    on(d.scroller, "touchend", function (e) {
      var touch = d.activeTouch;
      if (touch && !eventInWidget(d, e) && touch.left != null &&
          !touch.moved && new Date - touch.start < 300) {
        var pos = cm.coordsChar(d.activeTouch, "page"), range;
        if (!touch.prev || farAway(touch, touch.prev)) // Single tap
          { range = new Range(pos, pos); }
        else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap
          { range = cm.findWordAt(pos); }
        else // Triple tap
          { range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))); }
        cm.setSelection(range.anchor, range.head);
        cm.focus();
        e_preventDefault(e);
      }
      finishTouch();
    });
    on(d.scroller, "touchcancel", finishTouch);

    // Sync scrolling between fake scrollbars and real scrollable
    // area, ensure viewport is updated when scrolling.
    on(d.scroller, "scroll", function () {
      if (d.scroller.clientHeight) {
        updateScrollTop(cm, d.scroller.scrollTop);
        setScrollLeft(cm, d.scroller.scrollLeft, true);
        signal(cm, "scroll", cm);
      }
    });

    // Listen to wheel events in order to try and update the viewport on time.
    on(d.scroller, "mousewheel", function (e) { return onScrollWheel(cm, e); });
    on(d.scroller, "DOMMouseScroll", function (e) { return onScrollWheel(cm, e); });

    // Prevent wrapper from ever scrolling
    on(d.wrapper, "scroll", function () { return d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; });

    d.dragFunctions = {
      enter: function (e) {if (!signalDOMEvent(cm, e)) { e_stop(e); }},
      over: function (e) {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e); }},
      start: function (e) { return onDragStart(cm, e); },
      drop: operation(cm, onDrop),
      leave: function (e) {if (!signalDOMEvent(cm, e)) { clearDragCursor(cm); }}
    };

    var inp = d.input.getField();
    on(inp, "keyup", function (e) { return onKeyUp.call(cm, e); });
    on(inp, "keydown", operation(cm, onKeyDown));
    on(inp, "keypress", operation(cm, onKeyPress));
    on(inp, "focus", function (e) { return onFocus(cm, e); });
    on(inp, "blur", function (e) { return onBlur(cm, e); });
  }

  var initHooks = [];
  CodeMirror.defineInitHook = function (f) { return initHooks.push(f); };

  // Indent the given line. The how parameter can be "smart",
  // "add"/null, "subtract", or "prev". When aggressive is false
  // (typically set to true for forced single-line indents), empty
  // lines are not indented, and places where the mode returns Pass
  // are left alone.
  function indentLine(cm, n, how, aggressive) {
    var doc = cm.doc, state;
    if (how == null) { how = "add"; }
    if (how == "smart") {
      // Fall back to "prev" when the mode doesn't have an indentation
      // method.
      if (!doc.mode.indent) { how = "prev"; }
      else { state = getContextBefore(cm, n).state; }
    }

    var tabSize = cm.options.tabSize;
    var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize);
    if (line.stateAfter) { line.stateAfter = null; }
    var curSpaceString = line.text.match(/^\s*/)[0], indentation;
    if (!aggressive && !/\S/.test(line.text)) {
      indentation = 0;
      how = "not";
    } else if (how == "smart") {
      indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text);
      if (indentation == Pass || indentation > 150) {
        if (!aggressive) { return }
        how = "prev";
      }
    }
    if (how == "prev") {
      if (n > doc.first) { indentation = countColumn(getLine(doc, n-1).text, null, tabSize); }
      else { indentation = 0; }
    } else if (how == "add") {
      indentation = curSpace + cm.options.indentUnit;
    } else if (how == "subtract") {
      indentation = curSpace - cm.options.indentUnit;
    } else if (typeof how == "number") {
      indentation = curSpace + how;
    }
    indentation = Math.max(0, indentation);

    var indentString = "", pos = 0;
    if (cm.options.indentWithTabs)
      { for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";} }
    if (pos < indentation) { indentString += spaceStr(indentation - pos); }

    if (indentString != curSpaceString) {
      replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input");
      line.stateAfter = null;
      return true
    } else {
      // Ensure that, if the cursor was in the whitespace at the start
      // of the line, it is moved to the end of that space.
      for (var i$1 = 0; i$1 < doc.sel.ranges.length; i$1++) {
        var range = doc.sel.ranges[i$1];
        if (range.head.line == n && range.head.ch < curSpaceString.length) {
          var pos$1 = Pos(n, curSpaceString.length);
          replaceOneSelection(doc, i$1, new Range(pos$1, pos$1));
          break
        }
      }
    }
  }

  // This will be set to a {lineWise: bool, text: [string]} object, so
  // that, when pasting, we know what kind of selections the copied
  // text was made out of.
  var lastCopied = null;

  function setLastCopied(newLastCopied) {
    lastCopied = newLastCopied;
  }

  function applyTextInput(cm, inserted, deleted, sel, origin) {
    var doc = cm.doc;
    cm.display.shift = false;
    if (!sel) { sel = doc.sel; }

    var recent = +new Date - 200;
    var paste = origin == "paste" || cm.state.pasteIncoming > recent;
    var textLines = splitLinesAuto(inserted), multiPaste = null;
    // When pasting N lines into N selections, insert one line per selection
    if (paste && sel.ranges.length > 1) {
      if (lastCopied && lastCopied.text.join("\n") == inserted) {
        if (sel.ranges.length % lastCopied.text.length == 0) {
          multiPaste = [];
          for (var i = 0; i < lastCopied.text.length; i++)
            { multiPaste.push(doc.splitLines(lastCopied.text[i])); }
        }
      } else if (textLines.length == sel.ranges.length && cm.options.pasteLinesPerSelection) {
        multiPaste = map(textLines, function (l) { return [l]; });
      }
    }

    var updateInput = cm.curOp.updateInput;
    // Normal behavior is to insert the new text into every selection
    for (var i$1 = sel.ranges.length - 1; i$1 >= 0; i$1--) {
      var range = sel.ranges[i$1];
      var from = range.from(), to = range.to();
      if (range.empty()) {
        if (deleted && deleted > 0) // Handle deletion
          { from = Pos(from.line, from.ch - deleted); }
        else if (cm.state.overwrite && !paste) // Handle overwrite
          { to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length)); }
        else if (paste && lastCopied && lastCopied.lineWise && lastCopied.text.join("\n") == textLines.join("\n"))
          { from = to = Pos(from.line, 0); }
      }
      var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i$1 % multiPaste.length] : textLines,
                         origin: origin || (paste ? "paste" : cm.state.cutIncoming > recent ? "cut" : "+input")};
      makeChange(cm.doc, changeEvent);
      signalLater(cm, "inputRead", cm, changeEvent);
    }
    if (inserted && !paste)
      { triggerElectric(cm, inserted); }

    ensureCursorVisible(cm);
    if (cm.curOp.updateInput < 2) { cm.curOp.updateInput = updateInput; }
    cm.curOp.typing = true;
    cm.state.pasteIncoming = cm.state.cutIncoming = -1;
  }

  function handlePaste(e, cm) {
    var pasted = e.clipboardData && e.clipboardData.getData("Text");
    if (pasted) {
      e.preventDefault();
      if (!cm.isReadOnly() && !cm.options.disableInput)
        { runInOp(cm, function () { return applyTextInput(cm, pasted, 0, null, "paste"); }); }
      return true
    }
  }

  function triggerElectric(cm, inserted) {
    // When an 'electric' character is inserted, immediately trigger a reindent
    if (!cm.options.electricChars || !cm.options.smartIndent) { return }
    var sel = cm.doc.sel;

    for (var i = sel.ranges.length - 1; i >= 0; i--) {
      var range = sel.ranges[i];
      if (range.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range.head.line)) { continue }
      var mode = cm.getModeAt(range.head);
      var indented = false;
      if (mode.electricChars) {
        for (var j = 0; j < mode.electricChars.length; j++)
          { if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {
            indented = indentLine(cm, range.head.line, "smart");
            break
          } }
      } else if (mode.electricInput) {
        if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch)))
          { indented = indentLine(cm, range.head.line, "smart"); }
      }
      if (indented) { signalLater(cm, "electricInput", cm, range.head.line); }
    }
  }

  function copyableRanges(cm) {
    var text = [], ranges = [];
    for (var i = 0; i < cm.doc.sel.ranges.length; i++) {
      var line = cm.doc.sel.ranges[i].head.line;
      var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)};
      ranges.push(lineRange);
      text.push(cm.getRange(lineRange.anchor, lineRange.head));
    }
    return {text: text, ranges: ranges}
  }

  function disableBrowserMagic(field, spellcheck, autocorrect, autocapitalize) {
    field.setAttribute("autocorrect", autocorrect ? "" : "off");
    field.setAttribute("autocapitalize", autocapitalize ? "" : "off");
    field.setAttribute("spellcheck", !!spellcheck);
  }

  function hiddenTextarea() {
    var te = elt("textarea", null, null, "position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; outline: none");
    var div = elt("div", [te], null, "overflow: hidden; position: relative; width: 3px; height: 0px;");
    // The textarea is kept positioned near the cursor to prevent the
    // fact that it'll be scrolled into view on input from scrolling
    // our fake cursor out of view. On webkit, when wrap=off, paste is
    // very slow. So make the area wide instead.
    if (webkit) { te.style.width = "1000px"; }
    else { te.setAttribute("wrap", "off"); }
    // If border: 0; -- iOS fails to open keyboard (issue #1287)
    if (ios) { te.style.border = "1px solid black"; }
    disableBrowserMagic(te);
    return div
  }

  // The publicly visible API. Note that methodOp(f) means
  // 'wrap f in an operation, performed on its `this` parameter'.

  // This is not the complete set of editor methods. Most of the
  // methods defined on the Doc type are also injected into
  // CodeMirror.prototype, for backwards compatibility and
  // convenience.

  function addEditorMethods(CodeMirror) {
    var optionHandlers = CodeMirror.optionHandlers;

    var helpers = CodeMirror.helpers = {};

    CodeMirror.prototype = {
      constructor: CodeMirror,
      focus: function(){window.focus(); this.display.input.focus();},

      setOption: function(option, value) {
        var options = this.options, old = options[option];
        if (options[option] == value && option != "mode") { return }
        options[option] = value;
        if (optionHandlers.hasOwnProperty(option))
          { operation(this, optionHandlers[option])(this, value, old); }
        signal(this, "optionChange", this, option);
      },

      getOption: function(option) {return this.options[option]},
      getDoc: function() {return this.doc},

      addKeyMap: function(map, bottom) {
        this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map));
      },
      removeKeyMap: function(map) {
        var maps = this.state.keyMaps;
        for (var i = 0; i < maps.length; ++i)
          { if (maps[i] == map || maps[i].name == map) {
            maps.splice(i, 1);
            return true
          } }
      },

      addOverlay: methodOp(function(spec, options) {
        var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec);
        if (mode.startState) { throw new Error("Overlays may not be stateful.") }
        insertSorted(this.state.overlays,
                     {mode: mode, modeSpec: spec, opaque: options && options.opaque,
                      priority: (options && options.priority) || 0},
                     function (overlay) { return overlay.priority; });
        this.state.modeGen++;
        regChange(this);
      }),
      removeOverlay: methodOp(function(spec) {
        var overlays = this.state.overlays;
        for (var i = 0; i < overlays.length; ++i) {
          var cur = overlays[i].modeSpec;
          if (cur == spec || typeof spec == "string" && cur.name == spec) {
            overlays.splice(i, 1);
            this.state.modeGen++;
            regChange(this);
            return
          }
        }
      }),

      indentLine: methodOp(function(n, dir, aggressive) {
        if (typeof dir != "string" && typeof dir != "number") {
          if (dir == null) { dir = this.options.smartIndent ? "smart" : "prev"; }
          else { dir = dir ? "add" : "subtract"; }
        }
        if (isLine(this.doc, n)) { indentLine(this, n, dir, aggressive); }
      }),
      indentSelection: methodOp(function(how) {
        var ranges = this.doc.sel.ranges, end = -1;
        for (var i = 0; i < ranges.length; i++) {
          var range = ranges[i];
          if (!range.empty()) {
            var from = range.from(), to = range.to();
            var start = Math.max(end, from.line);
            end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1;
            for (var j = start; j < end; ++j)
              { indentLine(this, j, how); }
            var newRanges = this.doc.sel.ranges;
            if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0)
              { replaceOneSelection(this.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll); }
          } else if (range.head.line > end) {
            indentLine(this, range.head.line, how, true);
            end = range.head.line;
            if (i == this.doc.sel.primIndex) { ensureCursorVisible(this); }
          }
        }
      }),

      // Fetch the parser token for a given character. Useful for hacks
      // that want to inspect the mode state (say, for completion).
      getTokenAt: function(pos, precise) {
        return takeToken(this, pos, precise)
      },

      getLineTokens: function(line, precise) {
        return takeToken(this, Pos(line), precise, true)
      },

      getTokenTypeAt: function(pos) {
        pos = clipPos(this.doc, pos);
        var styles = getLineStyles(this, getLine(this.doc, pos.line));
        var before = 0, after = (styles.length - 1) / 2, ch = pos.ch;
        var type;
        if (ch == 0) { type = styles[2]; }
        else { for (;;) {
          var mid = (before + after) >> 1;
          if ((mid ? styles[mid * 2 - 1] : 0) >= ch) { after = mid; }
          else if (styles[mid * 2 + 1] < ch) { before = mid + 1; }
          else { type = styles[mid * 2 + 2]; break }
        } }
        var cut = type ? type.indexOf("overlay ") : -1;
        return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1)
      },

      getModeAt: function(pos) {
        var mode = this.doc.mode;
        if (!mode.innerMode) { return mode }
        return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode
      },

      getHelper: function(pos, type) {
        return this.getHelpers(pos, type)[0]
      },

      getHelpers: function(pos, type) {
        var found = [];
        if (!helpers.hasOwnProperty(type)) { return found }
        var help = helpers[type], mode = this.getModeAt(pos);
        if (typeof mode[type] == "string") {
          if (help[mode[type]]) { found.push(help[mode[type]]); }
        } else if (mode[type]) {
          for (var i = 0; i < mode[type].length; i++) {
            var val = help[mode[type][i]];
            if (val) { found.push(val); }
          }
        } else if (mode.helperType && help[mode.helperType]) {
          found.push(help[mode.helperType]);
        } else if (help[mode.name]) {
          found.push(help[mode.name]);
        }
        for (var i$1 = 0; i$1 < help._global.length; i$1++) {
          var cur = help._global[i$1];
          if (cur.pred(mode, this) && indexOf(found, cur.val) == -1)
            { found.push(cur.val); }
        }
        return found
      },

      getStateAfter: function(line, precise) {
        var doc = this.doc;
        line = clipLine(doc, line == null ? doc.first + doc.size - 1: line);
        return getContextBefore(this, line + 1, precise).state
      },

      cursorCoords: function(start, mode) {
        var pos, range = this.doc.sel.primary();
        if (start == null) { pos = range.head; }
        else if (typeof start == "object") { pos = clipPos(this.doc, start); }
        else { pos = start ? range.from() : range.to(); }
        return cursorCoords(this, pos, mode || "page")
      },

      charCoords: function(pos, mode) {
        return charCoords(this, clipPos(this.doc, pos), mode || "page")
      },

      coordsChar: function(coords, mode) {
        coords = fromCoordSystem(this, coords, mode || "page");
        return coordsChar(this, coords.left, coords.top)
      },

      lineAtHeight: function(height, mode) {
        height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top;
        return lineAtHeight(this.doc, height + this.display.viewOffset)
      },
      heightAtLine: function(line, mode, includeWidgets) {
        var end = false, lineObj;
        if (typeof line == "number") {
          var last = this.doc.first + this.doc.size - 1;
          if (line < this.doc.first) { line = this.doc.first; }
          else if (line > last) { line = last; end = true; }
          lineObj = getLine(this.doc, line);
        } else {
          lineObj = line;
        }
        return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page", includeWidgets || end).top +
          (end ? this.doc.height - heightAtLine(lineObj) : 0)
      },

      defaultTextHeight: function() { return textHeight(this.display) },
      defaultCharWidth: function() { return charWidth(this.display) },

      getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo}},

      addWidget: function(pos, node, scroll, vert, horiz) {
        var display = this.display;
        pos = cursorCoords(this, clipPos(this.doc, pos));
        var top = pos.bottom, left = pos.left;
        node.style.position = "absolute";
        node.setAttribute("cm-ignore-events", "true");
        this.display.input.setUneditable(node);
        display.sizer.appendChild(node);
        if (vert == "over") {
          top = pos.top;
        } else if (vert == "above" || vert == "near") {
          var vspace = Math.max(display.wrapper.clientHeight, this.doc.height),
          hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth);
          // Default to positioning above (if specified and possible); otherwise default to positioning below
          if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight)
            { top = pos.top - node.offsetHeight; }
          else if (pos.bottom + node.offsetHeight <= vspace)
            { top = pos.bottom; }
          if (left + node.offsetWidth > hspace)
            { left = hspace - node.offsetWidth; }
        }
        node.style.top = top + "px";
        node.style.left = node.style.right = "";
        if (horiz == "right") {
          left = display.sizer.clientWidth - node.offsetWidth;
          node.style.right = "0px";
        } else {
          if (horiz == "left") { left = 0; }
          else if (horiz == "middle") { left = (display.sizer.clientWidth - node.offsetWidth) / 2; }
          node.style.left = left + "px";
        }
        if (scroll)
          { scrollIntoView(this, {left: left, top: top, right: left + node.offsetWidth, bottom: top + node.offsetHeight}); }
      },

      triggerOnKeyDown: methodOp(onKeyDown),
      triggerOnKeyPress: methodOp(onKeyPress),
      triggerOnKeyUp: onKeyUp,
      triggerOnMouseDown: methodOp(onMouseDown),

      execCommand: function(cmd) {
        if (commands.hasOwnProperty(cmd))
          { return commands[cmd].call(null, this) }
      },

      triggerElectric: methodOp(function(text) { triggerElectric(this, text); }),

      findPosH: function(from, amount, unit, visually) {
        var dir = 1;
        if (amount < 0) { dir = -1; amount = -amount; }
        var cur = clipPos(this.doc, from);
        for (var i = 0; i < amount; ++i) {
          cur = findPosH(this.doc, cur, dir, unit, visually);
          if (cur.hitSide) { break }
        }
        return cur
      },

      moveH: methodOp(function(dir, unit) {
        var this$1 = this;

        this.extendSelectionsBy(function (range) {
          if (this$1.display.shift || this$1.doc.extend || range.empty())
            { return findPosH(this$1.doc, range.head, dir, unit, this$1.options.rtlMoveVisually) }
          else
            { return dir < 0 ? range.from() : range.to() }
        }, sel_move);
      }),

      deleteH: methodOp(function(dir, unit) {
        var sel = this.doc.sel, doc = this.doc;
        if (sel.somethingSelected())
          { doc.replaceSelection("", null, "+delete"); }
        else
          { deleteNearSelection(this, function (range) {
            var other = findPosH(doc, range.head, dir, unit, false);
            return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other}
          }); }
      }),

      findPosV: function(from, amount, unit, goalColumn) {
        var dir = 1, x = goalColumn;
        if (amount < 0) { dir = -1; amount = -amount; }
        var cur = clipPos(this.doc, from);
        for (var i = 0; i < amount; ++i) {
          var coords = cursorCoords(this, cur, "div");
          if (x == null) { x = coords.left; }
          else { coords.left = x; }
          cur = findPosV(this, coords, dir, unit);
          if (cur.hitSide) { break }
        }
        return cur
      },

      moveV: methodOp(function(dir, unit) {
        var this$1 = this;

        var doc = this.doc, goals = [];
        var collapse = !this.display.shift && !doc.extend && doc.sel.somethingSelected();
        doc.extendSelectionsBy(function (range) {
          if (collapse)
            { return dir < 0 ? range.from() : range.to() }
          var headPos = cursorCoords(this$1, range.head, "div");
          if (range.goalColumn != null) { headPos.left = range.goalColumn; }
          goals.push(headPos.left);
          var pos = findPosV(this$1, headPos, dir, unit);
          if (unit == "page" && range == doc.sel.primary())
            { addToScrollTop(this$1, charCoords(this$1, pos, "div").top - headPos.top); }
          return pos
        }, sel_move);
        if (goals.length) { for (var i = 0; i < doc.sel.ranges.length; i++)
          { doc.sel.ranges[i].goalColumn = goals[i]; } }
      }),

      // Find the word at the given position (as returned by coordsChar).
      findWordAt: function(pos) {
        var doc = this.doc, line = getLine(doc, pos.line).text;
        var start = pos.ch, end = pos.ch;
        if (line) {
          var helper = this.getHelper(pos, "wordChars");
          if ((pos.sticky == "before" || end == line.length) && start) { --start; } else { ++end; }
          var startChar = line.charAt(start);
          var check = isWordChar(startChar, helper)
            ? function (ch) { return isWordChar(ch, helper); }
            : /\s/.test(startChar) ? function (ch) { return /\s/.test(ch); }
            : function (ch) { return (!/\s/.test(ch) && !isWordChar(ch)); };
          while (start > 0 && check(line.charAt(start - 1))) { --start; }
          while (end < line.length && check(line.charAt(end))) { ++end; }
        }
        return new Range(Pos(pos.line, start), Pos(pos.line, end))
      },

      toggleOverwrite: function(value) {
        if (value != null && value == this.state.overwrite) { return }
        if (this.state.overwrite = !this.state.overwrite)
          { addClass(this.display.cursorDiv, "CodeMirror-overwrite"); }
        else
          { rmClass(this.display.cursorDiv, "CodeMirror-overwrite"); }

        signal(this, "overwriteToggle", this, this.state.overwrite);
      },
      hasFocus: function() { return this.display.input.getField() == activeElt() },
      isReadOnly: function() { return !!(this.options.readOnly || this.doc.cantEdit) },

      scrollTo: methodOp(function (x, y) { scrollToCoords(this, x, y); }),
      getScrollInfo: function() {
        var scroller = this.display.scroller;
        return {left: scroller.scrollLeft, top: scroller.scrollTop,
                height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight,
                width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth,
                clientHeight: displayHeight(this), clientWidth: displayWidth(this)}
      },

      scrollIntoView: methodOp(function(range, margin) {
        if (range == null) {
          range = {from: this.doc.sel.primary().head, to: null};
          if (margin == null) { margin = this.options.cursorScrollMargin; }
        } else if (typeof range == "number") {
          range = {from: Pos(range, 0), to: null};
        } else if (range.from == null) {
          range = {from: range, to: null};
        }
        if (!range.to) { range.to = range.from; }
        range.margin = margin || 0;

        if (range.from.line != null) {
          scrollToRange(this, range);
        } else {
          scrollToCoordsRange(this, range.from, range.to, range.margin);
        }
      }),

      setSize: methodOp(function(width, height) {
        var this$1 = this;

        var interpret = function (val) { return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val; };
        if (width != null) { this.display.wrapper.style.width = interpret(width); }
        if (height != null) { this.display.wrapper.style.height = interpret(height); }
        if (this.options.lineWrapping) { clearLineMeasurementCache(this); }
        var lineNo = this.display.viewFrom;
        this.doc.iter(lineNo, this.display.viewTo, function (line) {
          if (line.widgets) { for (var i = 0; i < line.widgets.length; i++)
            { if (line.widgets[i].noHScroll) { regLineChange(this$1, lineNo, "widget"); break } } }
          ++lineNo;
        });
        this.curOp.forceUpdate = true;
        signal(this, "refresh", this);
      }),

      operation: function(f){return runInOp(this, f)},
      startOperation: function(){return startOperation(this)},
      endOperation: function(){return endOperation(this)},

      refresh: methodOp(function() {
        var oldHeight = this.display.cachedTextHeight;
        regChange(this);
        this.curOp.forceUpdate = true;
        clearCaches(this);
        scrollToCoords(this, this.doc.scrollLeft, this.doc.scrollTop);
        updateGutterSpace(this.display);
        if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5 || this.options.lineWrapping)
          { estimateLineHeights(this); }
        signal(this, "refresh", this);
      }),

      swapDoc: methodOp(function(doc) {
        var old = this.doc;
        old.cm = null;
        // Cancel the current text selection if any (#5821)
        if (this.state.selectingText) { this.state.selectingText(); }
        attachDoc(this, doc);
        clearCaches(this);
        this.display.input.reset();
        scrollToCoords(this, doc.scrollLeft, doc.scrollTop);
        this.curOp.forceScroll = true;
        signalLater(this, "swapDoc", this, old);
        return old
      }),

      phrase: function(phraseText) {
        var phrases = this.options.phrases;
        return phrases && Object.prototype.hasOwnProperty.call(phrases, phraseText) ? phrases[phraseText] : phraseText
      },

      getInputField: function(){return this.display.input.getField()},
      getWrapperElement: function(){return this.display.wrapper},
      getScrollerElement: function(){return this.display.scroller},
      getGutterElement: function(){return this.display.gutters}
    };
    eventMixin(CodeMirror);

    CodeMirror.registerHelper = function(type, name, value) {
      if (!helpers.hasOwnProperty(type)) { helpers[type] = CodeMirror[type] = {_global: []}; }
      helpers[type][name] = value;
    };
    CodeMirror.registerGlobalHelper = function(type, name, predicate, value) {
      CodeMirror.registerHelper(type, name, value);
      helpers[type]._global.push({pred: predicate, val: value});
    };
  }

  // Used for horizontal relative motion. Dir is -1 or 1 (left or
  // right), unit can be "codepoint", "char", "column" (like char, but
  // doesn't cross line boundaries), "word" (across next word), or
  // "group" (to the start of next group of word or
  // non-word-non-whitespace chars). The visually param controls
  // whether, in right-to-left text, direction 1 means to move towards
  // the next index in the string, or towards the character to the right
  // of the current position. The resulting position will have a
  // hitSide=true property if it reached the end of the document.
  function findPosH(doc, pos, dir, unit, visually) {
    var oldPos = pos;
    var origDir = dir;
    var lineObj = getLine(doc, pos.line);
    var lineDir = visually && doc.direction == "rtl" ? -dir : dir;
    function findNextLine() {
      var l = pos.line + lineDir;
      if (l < doc.first || l >= doc.first + doc.size) { return false }
      pos = new Pos(l, pos.ch, pos.sticky);
      return lineObj = getLine(doc, l)
    }
    function moveOnce(boundToLine) {
      var next;
      if (unit == "codepoint") {
        var ch = lineObj.text.charCodeAt(pos.ch + (unit > 0 ? 0 : -1));
        if (isNaN(ch)) { next = null; }
        else { next = new Pos(pos.line, Math.max(0, Math.min(lineObj.text.length, pos.ch + dir * (ch >= 0xD800 && ch < 0xDC00 ? 2 : 1))),
                            -dir); }
      } else if (visually) {
        next = moveVisually(doc.cm, lineObj, pos, dir);
      } else {
        next = moveLogically(lineObj, pos, dir);
      }
      if (next == null) {
        if (!boundToLine && findNextLine())
          { pos = endOfLine(visually, doc.cm, lineObj, pos.line, lineDir); }
        else
          { return false }
      } else {
        pos = next;
      }
      return true
    }

    if (unit == "char" || unit == "codepoint") {
      moveOnce();
    } else if (unit == "column") {
      moveOnce(true);
    } else if (unit == "word" || unit == "group") {
      var sawType = null, group = unit == "group";
      var helper = doc.cm && doc.cm.getHelper(pos, "wordChars");
      for (var first = true;; first = false) {
        if (dir < 0 && !moveOnce(!first)) { break }
        var cur = lineObj.text.charAt(pos.ch) || "\n";
        var type = isWordChar(cur, helper) ? "w"
          : group && cur == "\n" ? "n"
          : !group || /\s/.test(cur) ? null
          : "p";
        if (group && !first && !type) { type = "s"; }
        if (sawType && sawType != type) {
          if (dir < 0) {dir = 1; moveOnce(); pos.sticky = "after";}
          break
        }

        if (type) { sawType = type; }
        if (dir > 0 && !moveOnce(!first)) { break }
      }
    }
    var result = skipAtomic(doc, pos, oldPos, origDir, true);
    if (equalCursorPos(oldPos, result)) { result.hitSide = true; }
    return result
  }

  // For relative vertical movement. Dir may be -1 or 1. Unit can be
  // "page" or "line". The resulting position will have a hitSide=true
  // property if it reached the end of the document.
  function findPosV(cm, pos, dir, unit) {
    var doc = cm.doc, x = pos.left, y;
    if (unit == "page") {
      var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight);
      var moveAmount = Math.max(pageSize - .5 * textHeight(cm.display), 3);
      y = (dir > 0 ? pos.bottom : pos.top) + dir * moveAmount;

    } else if (unit == "line") {
      y = dir > 0 ? pos.bottom + 3 : pos.top - 3;
    }
    var target;
    for (;;) {
      target = coordsChar(cm, x, y);
      if (!target.outside) { break }
      if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break }
      y += dir * 5;
    }
    return target
  }

  // CONTENTEDITABLE INPUT STYLE

  var ContentEditableInput = function(cm) {
    this.cm = cm;
    this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null;
    this.polling = new Delayed();
    this.composing = null;
    this.gracePeriod = false;
    this.readDOMTimeout = null;
  };

  ContentEditableInput.prototype.init = function (display) {
      var this$1 = this;

    var input = this, cm = input.cm;
    var div = input.div = display.lineDiv;
    disableBrowserMagic(div, cm.options.spellcheck, cm.options.autocorrect, cm.options.autocapitalize);

    function belongsToInput(e) {
      for (var t = e.target; t; t = t.parentNode) {
        if (t == div) { return true }
        if (/\bCodeMirror-(?:line)?widget\b/.test(t.className)) { break }
      }
      return false
    }

    on(div, "paste", function (e) {
      if (!belongsToInput(e) || signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }
      // IE doesn't fire input events, so we schedule a read for the pasted content in this way
      if (ie_version <= 11) { setTimeout(operation(cm, function () { return this$1.updateFromDOM(); }), 20); }
    });

    on(div, "compositionstart", function (e) {
      this$1.composing = {data: e.data, done: false};
    });
    on(div, "compositionupdate", function (e) {
      if (!this$1.composing) { this$1.composing = {data: e.data, done: false}; }
    });
    on(div, "compositionend", function (e) {
      if (this$1.composing) {
        if (e.data != this$1.composing.data) { this$1.readFromDOMSoon(); }
        this$1.composing.done = true;
      }
    });

    on(div, "touchstart", function () { return input.forceCompositionEnd(); });

    on(div, "input", function () {
      if (!this$1.composing) { this$1.readFromDOMSoon(); }
    });

    function onCopyCut(e) {
      if (!belongsToInput(e) || signalDOMEvent(cm, e)) { return }
      if (cm.somethingSelected()) {
        setLastCopied({lineWise: false, text: cm.getSelections()});
        if (e.type == "cut") { cm.replaceSelection("", null, "cut"); }
      } else if (!cm.options.lineWiseCopyCut) {
        return
      } else {
        var ranges = copyableRanges(cm);
        setLastCopied({lineWise: true, text: ranges.text});
        if (e.type == "cut") {
          cm.operation(function () {
            cm.setSelections(ranges.ranges, 0, sel_dontScroll);
            cm.replaceSelection("", null, "cut");
          });
        }
      }
      if (e.clipboardData) {
        e.clipboardData.clearData();
        var content = lastCopied.text.join("\n");
        // iOS exposes the clipboard API, but seems to discard content inserted into it
        e.clipboardData.setData("Text", content);
        if (e.clipboardData.getData("Text") == content) {
          e.preventDefault();
          return
        }
      }
      // Old-fashioned briefly-focus-a-textarea hack
      var kludge = hiddenTextarea(), te = kludge.firstChild;
      cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild);
      te.value = lastCopied.text.join("\n");
      var hadFocus = document.activeElement;
      selectInput(te);
      setTimeout(function () {
        cm.display.lineSpace.removeChild(kludge);
        hadFocus.focus();
        if (hadFocus == div) { input.showPrimarySelection(); }
      }, 50);
    }
    on(div, "copy", onCopyCut);
    on(div, "cut", onCopyCut);
  };

  ContentEditableInput.prototype.screenReaderLabelChanged = function (label) {
    // Label for screenreaders, accessibility
    if(label) {
      this.div.setAttribute('aria-label', label);
    } else {
      this.div.removeAttribute('aria-label');
    }
  };

  ContentEditableInput.prototype.prepareSelection = function () {
    var result = prepareSelection(this.cm, false);
    result.focus = document.activeElement == this.div;
    return result
  };

  ContentEditableInput.prototype.showSelection = function (info, takeFocus) {
    if (!info || !this.cm.display.view.length) { return }
    if (info.focus || takeFocus) { this.showPrimarySelection(); }
    this.showMultipleSelections(info);
  };

  ContentEditableInput.prototype.getSelection = function () {
    return this.cm.display.wrapper.ownerDocument.getSelection()
  };

  ContentEditableInput.prototype.showPrimarySelection = function () {
    var sel = this.getSelection(), cm = this.cm, prim = cm.doc.sel.primary();
    var from = prim.from(), to = prim.to();

    if (cm.display.viewTo == cm.display.viewFrom || from.line >= cm.display.viewTo || to.line < cm.display.viewFrom) {
      sel.removeAllRanges();
      return
    }

    var curAnchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);
    var curFocus = domToPos(cm, sel.focusNode, sel.focusOffset);
    if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad &&
        cmp(minPos(curAnchor, curFocus), from) == 0 &&
        cmp(maxPos(curAnchor, curFocus), to) == 0)
      { return }

    var view = cm.display.view;
    var start = (from.line >= cm.display.viewFrom && posToDOM(cm, from)) ||
        {node: view[0].measure.map[2], offset: 0};
    var end = to.line < cm.display.viewTo && posToDOM(cm, to);
    if (!end) {
      var measure = view[view.length - 1].measure;
      var map = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map;
      end = {node: map[map.length - 1], offset: map[map.length - 2] - map[map.length - 3]};
    }

    if (!start || !end) {
      sel.removeAllRanges();
      return
    }

    var old = sel.rangeCount && sel.getRangeAt(0), rng;
    try { rng = range(start.node, start.offset, end.offset, end.node); }
    catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible
    if (rng) {
      if (!gecko && cm.state.focused) {
        sel.collapse(start.node, start.offset);
        if (!rng.collapsed) {
          sel.removeAllRanges();
          sel.addRange(rng);
        }
      } else {
        sel.removeAllRanges();
        sel.addRange(rng);
      }
      if (old && sel.anchorNode == null) { sel.addRange(old); }
      else if (gecko) { this.startGracePeriod(); }
    }
    this.rememberSelection();
  };

  ContentEditableInput.prototype.startGracePeriod = function () {
      var this$1 = this;

    clearTimeout(this.gracePeriod);
    this.gracePeriod = setTimeout(function () {
      this$1.gracePeriod = false;
      if (this$1.selectionChanged())
        { this$1.cm.operation(function () { return this$1.cm.curOp.selectionChanged = true; }); }
    }, 20);
  };

  ContentEditableInput.prototype.showMultipleSelections = function (info) {
    removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors);
    removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection);
  };

  ContentEditableInput.prototype.rememberSelection = function () {
    var sel = this.getSelection();
    this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset;
    this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset;
  };

  ContentEditableInput.prototype.selectionInEditor = function () {
    var sel = this.getSelection();
    if (!sel.rangeCount) { return false }
    var node = sel.getRangeAt(0).commonAncestorContainer;
    return contains(this.div, node)
  };

  ContentEditableInput.prototype.focus = function () {
    if (this.cm.options.readOnly != "nocursor") {
      if (!this.selectionInEditor() || document.activeElement != this.div)
        { this.showSelection(this.prepareSelection(), true); }
      this.div.focus();
    }
  };
  ContentEditableInput.prototype.blur = function () { this.div.blur(); };
  ContentEditableInput.prototype.getField = function () { return this.div };

  ContentEditableInput.prototype.supportsTouch = function () { return true };

  ContentEditableInput.prototype.receivedFocus = function () {
    var input = this;
    if (this.selectionInEditor())
      { this.pollSelection(); }
    else
      { runInOp(this.cm, function () { return input.cm.curOp.selectionChanged = true; }); }

    function poll() {
      if (input.cm.state.focused) {
        input.pollSelection();
        input.polling.set(input.cm.options.pollInterval, poll);
      }
    }
    this.polling.set(this.cm.options.pollInterval, poll);
  };

  ContentEditableInput.prototype.selectionChanged = function () {
    var sel = this.getSelection();
    return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset ||
      sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset
  };

  ContentEditableInput.prototype.pollSelection = function () {
    if (this.readDOMTimeout != null || this.gracePeriod || !this.selectionChanged()) { return }
    var sel = this.getSelection(), cm = this.cm;
    // On Android Chrome (version 56, at least), backspacing into an
    // uneditable block element will put the cursor in that element,
    // and then, because it's not editable, hide the virtual keyboard.
    // Because Android doesn't allow us to actually detect backspace
    // presses in a sane way, this code checks for when that happens
    // and simulates a backspace press in this case.
    if (android && chrome && this.cm.display.gutterSpecs.length && isInGutter(sel.anchorNode)) {
      this.cm.triggerOnKeyDown({type: "keydown", keyCode: 8, preventDefault: Math.abs});
      this.blur();
      this.focus();
      return
    }
    if (this.composing) { return }
    this.rememberSelection();
    var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);
    var head = domToPos(cm, sel.focusNode, sel.focusOffset);
    if (anchor && head) { runInOp(cm, function () {
      setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll);
      if (anchor.bad || head.bad) { cm.curOp.selectionChanged = true; }
    }); }
  };

  ContentEditableInput.prototype.pollContent = function () {
    if (this.readDOMTimeout != null) {
      clearTimeout(this.readDOMTimeout);
      this.readDOMTimeout = null;
    }

    var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary();
    var from = sel.from(), to = sel.to();
    if (from.ch == 0 && from.line > cm.firstLine())
      { from = Pos(from.line - 1, getLine(cm.doc, from.line - 1).length); }
    if (to.ch == getLine(cm.doc, to.line).text.length && to.line < cm.lastLine())
      { to = Pos(to.line + 1, 0); }
    if (from.line < display.viewFrom || to.line > display.viewTo - 1) { return false }

    var fromIndex, fromLine, fromNode;
    if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) {
      fromLine = lineNo(display.view[0].line);
      fromNode = display.view[0].node;
    } else {
      fromLine = lineNo(display.view[fromIndex].line);
      fromNode = display.view[fromIndex - 1].node.nextSibling;
    }
    var toIndex = findViewIndex(cm, to.line);
    var toLine, toNode;
    if (toIndex == display.view.length - 1) {
      toLine = display.viewTo - 1;
      toNode = display.lineDiv.lastChild;
    } else {
      toLine = lineNo(display.view[toIndex + 1].line) - 1;
      toNode = display.view[toIndex + 1].node.previousSibling;
    }

    if (!fromNode) { return false }
    var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine));
    var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length));
    while (newText.length > 1 && oldText.length > 1) {
      if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine--; }
      else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++; }
      else { break }
    }

    var cutFront = 0, cutEnd = 0;
    var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length);
    while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront))
      { ++cutFront; }
    var newBot = lst(newText), oldBot = lst(oldText);
    var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0),
                             oldBot.length - (oldText.length == 1 ? cutFront : 0));
    while (cutEnd < maxCutEnd &&
           newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1))
      { ++cutEnd; }
    // Try to move start of change to start of selection if ambiguous
    if (newText.length == 1 && oldText.length == 1 && fromLine == from.line) {
      while (cutFront && cutFront > from.ch &&
             newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) {
        cutFront--;
        cutEnd++;
      }
    }

    newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd).replace(/^\u200b+/, "");
    newText[0] = newText[0].slice(cutFront).replace(/\u200b+$/, "");

    var chFrom = Pos(fromLine, cutFront);
    var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0);
    if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) {
      replaceRange(cm.doc, newText, chFrom, chTo, "+input");
      return true
    }
  };

  ContentEditableInput.prototype.ensurePolled = function () {
    this.forceCompositionEnd();
  };
  ContentEditableInput.prototype.reset = function () {
    this.forceCompositionEnd();
  };
  ContentEditableInput.prototype.forceCompositionEnd = function () {
    if (!this.composing) { return }
    clearTimeout(this.readDOMTimeout);
    this.composing = null;
    this.updateFromDOM();
    this.div.blur();
    this.div.focus();
  };
  ContentEditableInput.prototype.readFromDOMSoon = function () {
      var this$1 = this;

    if (this.readDOMTimeout != null) { return }
    this.readDOMTimeout = setTimeout(function () {
      this$1.readDOMTimeout = null;
      if (this$1.composing) {
        if (this$1.composing.done) { this$1.composing = null; }
        else { return }
      }
      this$1.updateFromDOM();
    }, 80);
  };

  ContentEditableInput.prototype.updateFromDOM = function () {
      var this$1 = this;

    if (this.cm.isReadOnly() || !this.pollContent())
      { runInOp(this.cm, function () { return regChange(this$1.cm); }); }
  };

  ContentEditableInput.prototype.setUneditable = function (node) {
    node.contentEditable = "false";
  };

  ContentEditableInput.prototype.onKeyPress = function (e) {
    if (e.charCode == 0 || this.composing) { return }
    e.preventDefault();
    if (!this.cm.isReadOnly())
      { operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0); }
  };

  ContentEditableInput.prototype.readOnlyChanged = function (val) {
    this.div.contentEditable = String(val != "nocursor");
  };

  ContentEditableInput.prototype.onContextMenu = function () {};
  ContentEditableInput.prototype.resetPosition = function () {};

  ContentEditableInput.prototype.needsContentAttribute = true;

  function posToDOM(cm, pos) {
    var view = findViewForLine(cm, pos.line);
    if (!view || view.hidden) { return null }
    var line = getLine(cm.doc, pos.line);
    var info = mapFromLineView(view, line, pos.line);

    var order = getOrder(line, cm.doc.direction), side = "left";
    if (order) {
      var partPos = getBidiPartAt(order, pos.ch);
      side = partPos % 2 ? "right" : "left";
    }
    var result = nodeAndOffsetInLineMap(info.map, pos.ch, side);
    result.offset = result.collapse == "right" ? result.end : result.start;
    return result
  }

  function isInGutter(node) {
    for (var scan = node; scan; scan = scan.parentNode)
      { if (/CodeMirror-gutter-wrapper/.test(scan.className)) { return true } }
    return false
  }

  function badPos(pos, bad) { if (bad) { pos.bad = true; } return pos }

  function domTextBetween(cm, from, to, fromLine, toLine) {
    var text = "", closing = false, lineSep = cm.doc.lineSeparator(), extraLinebreak = false;
    function recognizeMarker(id) { return function (marker) { return marker.id == id; } }
    function close() {
      if (closing) {
        text += lineSep;
        if (extraLinebreak) { text += lineSep; }
        closing = extraLinebreak = false;
      }
    }
    function addText(str) {
      if (str) {
        close();
        text += str;
      }
    }
    function walk(node) {
      if (node.nodeType == 1) {
        var cmText = node.getAttribute("cm-text");
        if (cmText) {
          addText(cmText);
          return
        }
        var markerID = node.getAttribute("cm-marker"), range;
        if (markerID) {
          var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID));
          if (found.length && (range = found[0].find(0)))
            { addText(getBetween(cm.doc, range.from, range.to).join(lineSep)); }
          return
        }
        if (node.getAttribute("contenteditable") == "false") { return }
        var isBlock = /^(pre|div|p|li|table|br)$/i.test(node.nodeName);
        if (!/^br$/i.test(node.nodeName) && node.textContent.length == 0) { return }

        if (isBlock) { close(); }
        for (var i = 0; i < node.childNodes.length; i++)
          { walk(node.childNodes[i]); }

        if (/^(pre|p)$/i.test(node.nodeName)) { extraLinebreak = true; }
        if (isBlock) { closing = true; }
      } else if (node.nodeType == 3) {
        addText(node.nodeValue.replace(/\u200b/g, "").replace(/\u00a0/g, " "));
      }
    }
    for (;;) {
      walk(from);
      if (from == to) { break }
      from = from.nextSibling;
      extraLinebreak = false;
    }
    return text
  }

  function domToPos(cm, node, offset) {
    var lineNode;
    if (node == cm.display.lineDiv) {
      lineNode = cm.display.lineDiv.childNodes[offset];
      if (!lineNode) { return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true) }
      node = null; offset = 0;
    } else {
      for (lineNode = node;; lineNode = lineNode.parentNode) {
        if (!lineNode || lineNode == cm.display.lineDiv) { return null }
        if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) { break }
      }
    }
    for (var i = 0; i < cm.display.view.length; i++) {
      var lineView = cm.display.view[i];
      if (lineView.node == lineNode)
        { return locateNodeInLineView(lineView, node, offset) }
    }
  }

  function locateNodeInLineView(lineView, node, offset) {
    var wrapper = lineView.text.firstChild, bad = false;
    if (!node || !contains(wrapper, node)) { return badPos(Pos(lineNo(lineView.line), 0), true) }
    if (node == wrapper) {
      bad = true;
      node = wrapper.childNodes[offset];
      offset = 0;
      if (!node) {
        var line = lineView.rest ? lst(lineView.rest) : lineView.line;
        return badPos(Pos(lineNo(line), line.text.length), bad)
      }
    }

    var textNode = node.nodeType == 3 ? node : null, topNode = node;
    if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) {
      textNode = node.firstChild;
      if (offset) { offset = textNode.nodeValue.length; }
    }
    while (topNode.parentNode != wrapper) { topNode = topNode.parentNode; }
    var measure = lineView.measure, maps = measure.maps;

    function find(textNode, topNode, offset) {
      for (var i = -1; i < (maps ? maps.length : 0); i++) {
        var map = i < 0 ? measure.map : maps[i];
        for (var j = 0; j < map.length; j += 3) {
          var curNode = map[j + 2];
          if (curNode == textNode || curNode == topNode) {
            var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]);
            var ch = map[j] + offset;
            if (offset < 0 || curNode != textNode) { ch = map[j + (offset ? 1 : 0)]; }
            return Pos(line, ch)
          }
        }
      }
    }
    var found = find(textNode, topNode, offset);
    if (found) { return badPos(found, bad) }

    // FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems
    for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) {
      found = find(after, after.firstChild, 0);
      if (found)
        { return badPos(Pos(found.line, found.ch - dist), bad) }
      else
        { dist += after.textContent.length; }
    }
    for (var before = topNode.previousSibling, dist$1 = offset; before; before = before.previousSibling) {
      found = find(before, before.firstChild, -1);
      if (found)
        { return badPos(Pos(found.line, found.ch + dist$1), bad) }
      else
        { dist$1 += before.textContent.length; }
    }
  }

  // TEXTAREA INPUT STYLE

  var TextareaInput = function(cm) {
    this.cm = cm;
    // See input.poll and input.reset
    this.prevInput = "";

    // Flag that indicates whether we expect input to appear real soon
    // now (after some event like 'keypress' or 'input') and are
    // polling intensively.
    this.pollingFast = false;
    // Self-resetting timeout for the poller
    this.polling = new Delayed();
    // Used to work around IE issue with selection being forgotten when focus moves away from textarea
    this.hasSelection = false;
    this.composing = null;
  };

  TextareaInput.prototype.init = function (display) {
      var this$1 = this;

    var input = this, cm = this.cm;
    this.createField(display);
    var te = this.textarea;

    display.wrapper.insertBefore(this.wrapper, display.wrapper.firstChild);

    // Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore)
    if (ios) { te.style.width = "0px"; }

    on(te, "input", function () {
      if (ie && ie_version >= 9 && this$1.hasSelection) { this$1.hasSelection = null; }
      input.poll();
    });

    on(te, "paste", function (e) {
      if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }

      cm.state.pasteIncoming = +new Date;
      input.fastPoll();
    });

    function prepareCopyCut(e) {
      if (signalDOMEvent(cm, e)) { return }
      if (cm.somethingSelected()) {
        setLastCopied({lineWise: false, text: cm.getSelections()});
      } else if (!cm.options.lineWiseCopyCut) {
        return
      } else {
        var ranges = copyableRanges(cm);
        setLastCopied({lineWise: true, text: ranges.text});
        if (e.type == "cut") {
          cm.setSelections(ranges.ranges, null, sel_dontScroll);
        } else {
          input.prevInput = "";
          te.value = ranges.text.join("\n");
          selectInput(te);
        }
      }
      if (e.type == "cut") { cm.state.cutIncoming = +new Date; }
    }
    on(te, "cut", prepareCopyCut);
    on(te, "copy", prepareCopyCut);

    on(display.scroller, "paste", function (e) {
      if (eventInWidget(display, e) || signalDOMEvent(cm, e)) { return }
      if (!te.dispatchEvent) {
        cm.state.pasteIncoming = +new Date;
        input.focus();
        return
      }

      // Pass the `paste` event to the textarea so it's handled by its event listener.
      var event = new Event("paste");
      event.clipboardData = e.clipboardData;
      te.dispatchEvent(event);
    });

    // Prevent normal selection in the editor (we handle our own)
    on(display.lineSpace, "selectstart", function (e) {
      if (!eventInWidget(display, e)) { e_preventDefault(e); }
    });

    on(te, "compositionstart", function () {
      var start = cm.getCursor("from");
      if (input.composing) { input.composing.range.clear(); }
      input.composing = {
        start: start,
        range: cm.markText(start, cm.getCursor("to"), {className: "CodeMirror-composing"})
      };
    });
    on(te, "compositionend", function () {
      if (input.composing) {
        input.poll();
        input.composing.range.clear();
        input.composing = null;
      }
    });
  };

  TextareaInput.prototype.createField = function (_display) {
    // Wraps and hides input textarea
    this.wrapper = hiddenTextarea();
    // The semihidden textarea that is focused when the editor is
    // focused, and receives input.
    this.textarea = this.wrapper.firstChild;
  };

  TextareaInput.prototype.screenReaderLabelChanged = function (label) {
    // Label for screenreaders, accessibility
    if(label) {
      this.textarea.setAttribute('aria-label', label);
    } else {
      this.textarea.removeAttribute('aria-label');
    }
  };

  TextareaInput.prototype.prepareSelection = function () {
    // Redraw the selection and/or cursor
    var cm = this.cm, display = cm.display, doc = cm.doc;
    var result = prepareSelection(cm);

    // Move the hidden textarea near the cursor to prevent scrolling artifacts
    if (cm.options.moveInputWithCursor) {
      var headPos = cursorCoords(cm, doc.sel.primary().head, "div");
      var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect();
      result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10,
                                          headPos.top + lineOff.top - wrapOff.top));
      result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10,
                                           headPos.left + lineOff.left - wrapOff.left));
    }

    return result
  };

  TextareaInput.prototype.showSelection = function (drawn) {
    var cm = this.cm, display = cm.display;
    removeChildrenAndAdd(display.cursorDiv, drawn.cursors);
    removeChildrenAndAdd(display.selectionDiv, drawn.selection);
    if (drawn.teTop != null) {
      this.wrapper.style.top = drawn.teTop + "px";
      this.wrapper.style.left = drawn.teLeft + "px";
    }
  };

  // Reset the input to correspond to the selection (or to be empty,
  // when not typing and nothing is selected)
  TextareaInput.prototype.reset = function (typing) {
    if (this.contextMenuPending || this.composing) { return }
    var cm = this.cm;
    if (cm.somethingSelected()) {
      this.prevInput = "";
      var content = cm.getSelection();
      this.textarea.value = content;
      if (cm.state.focused) { selectInput(this.textarea); }
      if (ie && ie_version >= 9) { this.hasSelection = content; }
    } else if (!typing) {
      this.prevInput = this.textarea.value = "";
      if (ie && ie_version >= 9) { this.hasSelection = null; }
    }
  };

  TextareaInput.prototype.getField = function () { return this.textarea };

  TextareaInput.prototype.supportsTouch = function () { return false };

  TextareaInput.prototype.focus = function () {
    if (this.cm.options.readOnly != "nocursor" && (!mobile || activeElt() != this.textarea)) {
      try { this.textarea.focus(); }
      catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM
    }
  };

  TextareaInput.prototype.blur = function () { this.textarea.blur(); };

  TextareaInput.prototype.resetPosition = function () {
    this.wrapper.style.top = this.wrapper.style.left = 0;
  };

  TextareaInput.prototype.receivedFocus = function () { this.slowPoll(); };

  // Poll for input changes, using the normal rate of polling. This
  // runs as long as the editor is focused.
  TextareaInput.prototype.slowPoll = function () {
      var this$1 = this;

    if (this.pollingFast) { return }
    this.polling.set(this.cm.options.pollInterval, function () {
      this$1.poll();
      if (this$1.cm.state.focused) { this$1.slowPoll(); }
    });
  };

  // When an event has just come in that is likely to add or change
  // something in the input textarea, we poll faster, to ensure that
  // the change appears on the screen quickly.
  TextareaInput.prototype.fastPoll = function () {
    var missed = false, input = this;
    input.pollingFast = true;
    function p() {
      var changed = input.poll();
      if (!changed && !missed) {missed = true; input.polling.set(60, p);}
      else {input.pollingFast = false; input.slowPoll();}
    }
    input.polling.set(20, p);
  };

  // Read input from the textarea, and update the document to match.
  // When something is selected, it is present in the textarea, and
  // selected (unless it is huge, in which case a placeholder is
  // used). When nothing is selected, the cursor sits after previously
  // seen text (can be empty), which is stored in prevInput (we must
  // not reset the textarea when typing, because that breaks IME).
  TextareaInput.prototype.poll = function () {
      var this$1 = this;

    var cm = this.cm, input = this.textarea, prevInput = this.prevInput;
    // Since this is called a *lot*, try to bail out as cheaply as
    // possible when it is clear that nothing happened. hasSelection
    // will be the case when there is a lot of text in the textarea,
    // in which case reading its value would be expensive.
    if (this.contextMenuPending || !cm.state.focused ||
        (hasSelection(input) && !prevInput && !this.composing) ||
        cm.isReadOnly() || cm.options.disableInput || cm.state.keySeq)
      { return false }

    var text = input.value;
    // If nothing changed, bail.
    if (text == prevInput && !cm.somethingSelected()) { return false }
    // Work around nonsensical selection resetting in IE9/10, and
    // inexplicable appearance of private area unicode characters on
    // some key combos in Mac (#2689).
    if (ie && ie_version >= 9 && this.hasSelection === text ||
        mac && /[\uf700-\uf7ff]/.test(text)) {
      cm.display.input.reset();
      return false
    }

    if (cm.doc.sel == cm.display.selForContextMenu) {
      var first = text.charCodeAt(0);
      if (first == 0x200b && !prevInput) { prevInput = "\u200b"; }
      if (first == 0x21da) { this.reset(); return this.cm.execCommand("undo") }
    }
    // Find the part of the input that is actually new
    var same = 0, l = Math.min(prevInput.length, text.length);
    while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) { ++same; }

    runInOp(cm, function () {
      applyTextInput(cm, text.slice(same), prevInput.length - same,
                     null, this$1.composing ? "*compose" : null);

      // Don't leave long text in the textarea, since it makes further polling slow
      if (text.length > 1000 || text.indexOf("\n") > -1) { input.value = this$1.prevInput = ""; }
      else { this$1.prevInput = text; }

      if (this$1.composing) {
        this$1.composing.range.clear();
        this$1.composing.range = cm.markText(this$1.composing.start, cm.getCursor("to"),
                                           {className: "CodeMirror-composing"});
      }
    });
    return true
  };

  TextareaInput.prototype.ensurePolled = function () {
    if (this.pollingFast && this.poll()) { this.pollingFast = false; }
  };

  TextareaInput.prototype.onKeyPress = function () {
    if (ie && ie_version >= 9) { this.hasSelection = null; }
    this.fastPoll();
  };

  TextareaInput.prototype.onContextMenu = function (e) {
    var input = this, cm = input.cm, display = cm.display, te = input.textarea;
    if (input.contextMenuPending) { input.contextMenuPending(); }
    var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop;
    if (!pos || presto) { return } // Opera is difficult.

    // Reset the current text selection only if the click is done outside of the selection
    // and 'resetSelectionOnContextMenu' option is true.
    var reset = cm.options.resetSelectionOnContextMenu;
    if (reset && cm.doc.sel.contains(pos) == -1)
      { operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll); }

    var oldCSS = te.style.cssText, oldWrapperCSS = input.wrapper.style.cssText;
    var wrapperBox = input.wrapper.offsetParent.getBoundingClientRect();
    input.wrapper.style.cssText = "position: static";
    te.style.cssText = "position: absolute; width: 30px; height: 30px;\n      top: " + (e.clientY - wrapperBox.top - 5) + "px; left: " + (e.clientX - wrapperBox.left - 5) + "px;\n      z-index: 1000; background: " + (ie ? "rgba(255, 255, 255, .05)" : "transparent") + ";\n      outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);";
    var oldScrollY;
    if (webkit) { oldScrollY = window.scrollY; } // Work around Chrome issue (#2712)
    display.input.focus();
    if (webkit) { window.scrollTo(null, oldScrollY); }
    display.input.reset();
    // Adds "Select all" to context menu in FF
    if (!cm.somethingSelected()) { te.value = input.prevInput = " "; }
    input.contextMenuPending = rehide;
    display.selForContextMenu = cm.doc.sel;
    clearTimeout(display.detectingSelectAll);

    // Select-all will be greyed out if there's nothing to select, so
    // this adds a zero-width space so that we can later check whether
    // it got selected.
    function prepareSelectAllHack() {
      if (te.selectionStart != null) {
        var selected = cm.somethingSelected();
        var extval = "\u200b" + (selected ? te.value : "");
        te.value = "\u21da"; // Used to catch context-menu undo
        te.value = extval;
        input.prevInput = selected ? "" : "\u200b";
        te.selectionStart = 1; te.selectionEnd = extval.length;
        // Re-set this, in case some other handler touched the
        // selection in the meantime.
        display.selForContextMenu = cm.doc.sel;
      }
    }
    function rehide() {
      if (input.contextMenuPending != rehide) { return }
      input.contextMenuPending = false;
      input.wrapper.style.cssText = oldWrapperCSS;
      te.style.cssText = oldCSS;
      if (ie && ie_version < 9) { display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos); }

      // Try to detect the user choosing select-all
      if (te.selectionStart != null) {
        if (!ie || (ie && ie_version < 9)) { prepareSelectAllHack(); }
        var i = 0, poll = function () {
          if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 &&
              te.selectionEnd > 0 && input.prevInput == "\u200b") {
            operation(cm, selectAll)(cm);
          } else if (i++ < 10) {
            display.detectingSelectAll = setTimeout(poll, 500);
          } else {
            display.selForContextMenu = null;
            display.input.reset();
          }
        };
        display.detectingSelectAll = setTimeout(poll, 200);
      }
    }

    if (ie && ie_version >= 9) { prepareSelectAllHack(); }
    if (captureRightClick) {
      e_stop(e);
      var mouseup = function () {
        off(window, "mouseup", mouseup);
        setTimeout(rehide, 20);
      };
      on(window, "mouseup", mouseup);
    } else {
      setTimeout(rehide, 50);
    }
  };

  TextareaInput.prototype.readOnlyChanged = function (val) {
    if (!val) { this.reset(); }
    this.textarea.disabled = val == "nocursor";
    this.textarea.readOnly = !!val;
  };

  TextareaInput.prototype.setUneditable = function () {};

  TextareaInput.prototype.needsContentAttribute = false;

  function fromTextArea(textarea, options) {
    options = options ? copyObj(options) : {};
    options.value = textarea.value;
    if (!options.tabindex && textarea.tabIndex)
      { options.tabindex = textarea.tabIndex; }
    if (!options.placeholder && textarea.placeholder)
      { options.placeholder = textarea.placeholder; }
    // Set autofocus to true if this textarea is focused, or if it has
    // autofocus and no other element is focused.
    if (options.autofocus == null) {
      var hasFocus = activeElt();
      options.autofocus = hasFocus == textarea ||
        textarea.getAttribute("autofocus") != null && hasFocus == document.body;
    }

    function save() {textarea.value = cm.getValue();}

    var realSubmit;
    if (textarea.form) {
      on(textarea.form, "submit", save);
      // Deplorable hack to make the submit method do the right thing.
      if (!options.leaveSubmitMethodAlone) {
        var form = textarea.form;
        realSubmit = form.submit;
        try {
          var wrappedSubmit = form.submit = function () {
            save();
            form.submit = realSubmit;
            form.submit();
            form.submit = wrappedSubmit;
          };
        } catch(e) {}
      }
    }

    options.finishInit = function (cm) {
      cm.save = save;
      cm.getTextArea = function () { return textarea; };
      cm.toTextArea = function () {
        cm.toTextArea = isNaN; // Prevent this from being ran twice
        save();
        textarea.parentNode.removeChild(cm.getWrapperElement());
        textarea.style.display = "";
        if (textarea.form) {
          off(textarea.form, "submit", save);
          if (!options.leaveSubmitMethodAlone && typeof textarea.form.submit == "function")
            { textarea.form.submit = realSubmit; }
        }
      };
    };

    textarea.style.display = "none";
    var cm = CodeMirror(function (node) { return textarea.parentNode.insertBefore(node, textarea.nextSibling); },
      options);
    return cm
  }

  function addLegacyProps(CodeMirror) {
    CodeMirror.off = off;
    CodeMirror.on = on;
    CodeMirror.wheelEventPixels = wheelEventPixels;
    CodeMirror.Doc = Doc;
    CodeMirror.splitLines = splitLinesAuto;
    CodeMirror.countColumn = countColumn;
    CodeMirror.findColumn = findColumn;
    CodeMirror.isWordChar = isWordCharBasic;
    CodeMirror.Pass = Pass;
    CodeMirror.signal = signal;
    CodeMirror.Line = Line;
    CodeMirror.changeEnd = changeEnd;
    CodeMirror.scrollbarModel = scrollbarModel;
    CodeMirror.Pos = Pos;
    CodeMirror.cmpPos = cmp;
    CodeMirror.modes = modes;
    CodeMirror.mimeModes = mimeModes;
    CodeMirror.resolveMode = resolveMode;
    CodeMirror.getMode = getMode;
    CodeMirror.modeExtensions = modeExtensions;
    CodeMirror.extendMode = extendMode;
    CodeMirror.copyState = copyState;
    CodeMirror.startState = startState;
    CodeMirror.innerMode = innerMode;
    CodeMirror.commands = commands;
    CodeMirror.keyMap = keyMap;
    CodeMirror.keyName = keyName;
    CodeMirror.isModifierKey = isModifierKey;
    CodeMirror.lookupKey = lookupKey;
    CodeMirror.normalizeKeyMap = normalizeKeyMap;
    CodeMirror.StringStream = StringStream;
    CodeMirror.SharedTextMarker = SharedTextMarker;
    CodeMirror.TextMarker = TextMarker;
    CodeMirror.LineWidget = LineWidget;
    CodeMirror.e_preventDefault = e_preventDefault;
    CodeMirror.e_stopPropagation = e_stopPropagation;
    CodeMirror.e_stop = e_stop;
    CodeMirror.addClass = addClass;
    CodeMirror.contains = contains;
    CodeMirror.rmClass = rmClass;
    CodeMirror.keyNames = keyNames;
  }

  // EDITOR CONSTRUCTOR

  defineOptions(CodeMirror);

  addEditorMethods(CodeMirror);

  // Set up methods on CodeMirror's prototype to redirect to the editor's document.
  var dontDelegate = "iter insert remove copy getEditor constructor".split(" ");
  for (var prop in Doc.prototype) { if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0)
    { CodeMirror.prototype[prop] = (function(method) {
      return function() {return method.apply(this.doc, arguments)}
    })(Doc.prototype[prop]); } }

  eventMixin(Doc);
  CodeMirror.inputStyles = {"textarea": TextareaInput, "contenteditable": ContentEditableInput};

  // Extra arguments are stored as the mode's dependencies, which is
  // used by (legacy) mechanisms like loadmode.js to automatically
  // load a mode. (Preferred mechanism is the require/define calls.)
  CodeMirror.defineMode = function(name/*, mode, …*/) {
    if (!CodeMirror.defaults.mode && name != "null") { CodeMirror.defaults.mode = name; }
    defineMode.apply(this, arguments);
  };

  CodeMirror.defineMIME = defineMIME;

  // Minimal default mode.
  CodeMirror.defineMode("null", function () { return ({token: function (stream) { return stream.skipToEnd(); }}); });
  CodeMirror.defineMIME("text/plain", "null");

  // EXTENSIONS

  CodeMirror.defineExtension = function (name, func) {
    CodeMirror.prototype[name] = func;
  };
  CodeMirror.defineDocExtension = function (name, func) {
    Doc.prototype[name] = func;
  };

  CodeMirror.fromTextArea = fromTextArea;

  addLegacyProps(CodeMirror);

  CodeMirror.version = "5.58.2";

  return CodeMirror;

})));


/***/ }),

/***/ "Y1PL":
/*!**********************************************************!*\
  !*** ./node_modules/rc-textarea/es/index.js + 7 modules ***!
  \**********************************************************/
/*! exports provided: ResizableTextArea, default */
/*! all exports used */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/classCallCheck.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/createClass.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/createSuper.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/defineProperty.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/extends.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/inherits.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/objectSpread2.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/classnames/index.js (<- Module is not an ECMAScript module) */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/rc-util/es/Children/toArray.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/rc-util/es/Dom/findDOMNode.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/rc-util/es/omit.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/rc-util/es/ref.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/rc-util/es/warning.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/resize-observer-polyfill/dist/ResizeObserver.es.js (<- Module uses injected variables (global)) */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/shallowequal/index.js (<- Module is not an ECMAScript module) */
/*! ModuleConcatenation bailout: Cannot concat with external "window.React" (<- Module is not an ECMAScript module) */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
// ESM COMPAT FLAG
__webpack_require__.r(__webpack_exports__);

// EXPORTS
__webpack_require__.d(__webpack_exports__, "ResizableTextArea", function() { return /* reexport */ es_ResizableTextArea; });

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/extends.js
var esm_extends = __webpack_require__("wx14");

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/classCallCheck.js
var classCallCheck = __webpack_require__("1OyB");

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/createClass.js
var createClass = __webpack_require__("vuIU");

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/inherits.js
var inherits = __webpack_require__("Ji7U");

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/createSuper.js + 1 modules
var createSuper = __webpack_require__("LK+K");

// EXTERNAL MODULE: external "window.React"
var external_window_React_ = __webpack_require__("cDcd");

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/objectSpread2.js
var objectSpread2 = __webpack_require__("VTBJ");

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/defineProperty.js
var defineProperty = __webpack_require__("rePB");

// EXTERNAL MODULE: ./node_modules/rc-util/es/Children/toArray.js
var toArray = __webpack_require__("Zm9Q");

// EXTERNAL MODULE: ./node_modules/rc-util/es/warning.js
var warning = __webpack_require__("Kwbf");

// EXTERNAL MODULE: ./node_modules/rc-util/es/ref.js
var ref = __webpack_require__("c+Xe");

// EXTERNAL MODULE: ./node_modules/rc-util/es/Dom/findDOMNode.js
var findDOMNode = __webpack_require__("m+aA");

// EXTERNAL MODULE: ./node_modules/resize-observer-polyfill/dist/ResizeObserver.es.js
var ResizeObserver_es = __webpack_require__("bdgK");

// CONCATENATED MODULE: ./node_modules/rc-textarea/node_modules/rc-resize-observer/es/utils/observerUtil.js
 // =============================== Const ===============================

var elementListeners = new Map();

function observerUtil_onResize(entities) {
  entities.forEach(function (entity) {
    var _elementListeners$get;

    var target = entity.target;
    (_elementListeners$get = elementListeners.get(target)) === null || _elementListeners$get === void 0 ? void 0 : _elementListeners$get.forEach(function (listener) {
      return listener(target);
    });
  });
} // Note: ResizeObserver polyfill not support option to measure border-box resize


var resizeObserver = new ResizeObserver_es["default"](observerUtil_onResize); // Dev env only

var _el =  false ? undefined : null; // eslint-disable-line

var _rs =  false ? undefined : null; // eslint-disable-line
// ============================== Observe ==============================

function observe(element, callback) {
  if (!elementListeners.has(element)) {
    elementListeners.set(element, new Set());
    resizeObserver.observe(element);
  }

  elementListeners.get(element).add(callback);
}
function unobserve(element, callback) {
  if (elementListeners.has(element)) {
    elementListeners.get(element).delete(callback);

    if (!elementListeners.get(element).size) {
      resizeObserver.unobserve(element);
      elementListeners.delete(element);
    }
  }
}
// CONCATENATED MODULE: ./node_modules/rc-textarea/node_modules/rc-resize-observer/es/SingleObserver/DomWrapper.js





/**
 * Fallback to findDOMNode if origin ref do not provide any dom element
 */

var DomWrapper_DomWrapper = /*#__PURE__*/function (_React$Component) {
  Object(inherits["a" /* default */])(DomWrapper, _React$Component);

  var _super = Object(createSuper["a" /* default */])(DomWrapper);

  function DomWrapper() {
    Object(classCallCheck["a" /* default */])(this, DomWrapper);

    return _super.apply(this, arguments);
  }

  Object(createClass["a" /* default */])(DomWrapper, [{
    key: "render",
    value: function render() {
      return this.props.children;
    }
  }]);

  return DomWrapper;
}(external_window_React_["Component"]);


// CONCATENATED MODULE: ./node_modules/rc-textarea/node_modules/rc-resize-observer/es/Collection.js

var CollectionContext = /*#__PURE__*/external_window_React_["createContext"](null);
/**
 * Collect all the resize event from children ResizeObserver
 */

function Collection(_ref) {
  var children = _ref.children,
      onBatchResize = _ref.onBatchResize;
  var resizeIdRef = external_window_React_["useRef"](0);
  var resizeInfosRef = external_window_React_["useRef"]([]);
  var onCollectionResize = external_window_React_["useContext"](CollectionContext);
  var onResize = external_window_React_["useCallback"](function (size, element, data) {
    resizeIdRef.current += 1;
    var currentId = resizeIdRef.current;
    resizeInfosRef.current.push({
      size: size,
      element: element,
      data: data
    });
    Promise.resolve().then(function () {
      if (currentId === resizeIdRef.current) {
        onBatchResize === null || onBatchResize === void 0 ? void 0 : onBatchResize(resizeInfosRef.current);
        resizeInfosRef.current = [];
      }
    }); // Continue bubbling if parent exist

    onCollectionResize === null || onCollectionResize === void 0 ? void 0 : onCollectionResize(size, element, data);
  }, [onBatchResize, onCollectionResize]);
  return /*#__PURE__*/external_window_React_["createElement"](CollectionContext.Provider, {
    value: onResize
  }, children);
}
// CONCATENATED MODULE: ./node_modules/rc-textarea/node_modules/rc-resize-observer/es/SingleObserver/index.js







function SingleObserver(props) {
  var children = props.children,
      disabled = props.disabled;
  var elementRef = external_window_React_["useRef"](null);
  var wrapperRef = external_window_React_["useRef"](null);
  var onCollectionResize = external_window_React_["useContext"](CollectionContext); // ============================= Size =============================

  var sizeRef = external_window_React_["useRef"]({
    width: -1,
    height: -1,
    offsetWidth: -1,
    offsetHeight: -1
  }); // ============================= Ref ==============================

  var canRef = /*#__PURE__*/external_window_React_["isValidElement"](children) && Object(ref["c" /* supportRef */])(children);
  var originRef = canRef ? children.ref : null;
  var mergedRef = external_window_React_["useMemo"](function () {
    return Object(ref["a" /* composeRef */])(originRef, elementRef);
  }, [originRef, elementRef]); // =========================== Observe ============================

  var propsRef = external_window_React_["useRef"](props);
  propsRef.current = props; // Handler

  var onInternalResize = external_window_React_["useCallback"](function (target) {
    var _propsRef$current = propsRef.current,
        onResize = _propsRef$current.onResize,
        data = _propsRef$current.data;

    var _target$getBoundingCl = target.getBoundingClientRect(),
        width = _target$getBoundingCl.width,
        height = _target$getBoundingCl.height;

    var offsetWidth = target.offsetWidth,
        offsetHeight = target.offsetHeight;
    /**
     * Resize observer trigger when content size changed.
     * In most case we just care about element size,
     * let's use `boundary` instead of `contentRect` here to avoid shaking.
     */

    var fixedWidth = Math.floor(width);
    var fixedHeight = Math.floor(height);

    if (sizeRef.current.width !== fixedWidth || sizeRef.current.height !== fixedHeight || sizeRef.current.offsetWidth !== offsetWidth || sizeRef.current.offsetHeight !== offsetHeight) {
      var size = {
        width: fixedWidth,
        height: fixedHeight,
        offsetWidth: offsetWidth,
        offsetHeight: offsetHeight
      };
      sizeRef.current = size; // IE is strange, right?

      var mergedOffsetWidth = offsetWidth === Math.round(width) ? width : offsetWidth;
      var mergedOffsetHeight = offsetHeight === Math.round(height) ? height : offsetHeight;

      var sizeInfo = Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, size), {}, {
        offsetWidth: mergedOffsetWidth,
        offsetHeight: mergedOffsetHeight
      }); // Let collection know what happened


      onCollectionResize === null || onCollectionResize === void 0 ? void 0 : onCollectionResize(sizeInfo, target, data);

      if (onResize) {
        // defer the callback but not defer to next frame
        Promise.resolve().then(function () {
          onResize(sizeInfo, target);
        });
      }
    }
  }, []); // Dynamic observe

  external_window_React_["useEffect"](function () {
    var currentElement = Object(findDOMNode["a" /* default */])(elementRef.current) || Object(findDOMNode["a" /* default */])(wrapperRef.current);

    if (currentElement && !disabled) {
      observe(currentElement, onInternalResize);
    }

    return function () {
      return unobserve(currentElement, onInternalResize);
    };
  }, [elementRef.current, disabled]); // ============================ Render ============================

  return /*#__PURE__*/external_window_React_["createElement"](DomWrapper_DomWrapper, {
    ref: wrapperRef
  }, canRef ? /*#__PURE__*/external_window_React_["cloneElement"](children, {
    ref: mergedRef
  }) : children);
}
// CONCATENATED MODULE: ./node_modules/rc-textarea/node_modules/rc-resize-observer/es/index.js






var INTERNAL_PREFIX_KEY = 'rc-observer-key';

function ResizeObserver(props) {
  var children = props.children;
  var childNodes = Object(toArray["a" /* default */])(children);

  if (false) {}

  return childNodes.map(function (child, index) {
    var key = (child === null || child === void 0 ? void 0 : child.key) || "".concat(INTERNAL_PREFIX_KEY, "-").concat(index);
    return /*#__PURE__*/external_window_React_["createElement"](SingleObserver, Object(esm_extends["a" /* default */])({}, props, {
      key: key
    }), child);
  });
}

ResizeObserver.Collection = Collection;
/* harmony default export */ var es = (ResizeObserver);
// EXTERNAL MODULE: ./node_modules/rc-util/es/omit.js
var omit = __webpack_require__("bT9E");

// EXTERNAL MODULE: ./node_modules/classnames/index.js
var classnames = __webpack_require__("TSYQ");
var classnames_default = /*#__PURE__*/__webpack_require__.n(classnames);

// CONCATENATED MODULE: ./node_modules/rc-textarea/es/calculateNodeHeight.js
// Thanks to https://github.com/andreypopp/react-textarea-autosize/

/**
 * calculateNodeHeight(uiTextNode, useCache = false)
 */
var HIDDEN_TEXTAREA_STYLE = "\n  min-height:0 !important;\n  max-height:none !important;\n  height:0 !important;\n  visibility:hidden !important;\n  overflow:hidden !important;\n  position:absolute !important;\n  z-index:-1000 !important;\n  top:0 !important;\n  right:0 !important\n";
var SIZING_STYLE = ['letter-spacing', 'line-height', 'padding-top', 'padding-bottom', 'font-family', 'font-weight', 'font-size', 'font-variant', 'text-rendering', 'text-transform', 'width', 'text-indent', 'padding-left', 'padding-right', 'border-width', 'box-sizing', 'word-break'];
var computedStyleCache = {};
var hiddenTextarea;
function calculateNodeStyling(node) {
  var useCache = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
  var nodeRef = node.getAttribute('id') || node.getAttribute('data-reactid') || node.getAttribute('name');

  if (useCache && computedStyleCache[nodeRef]) {
    return computedStyleCache[nodeRef];
  }

  var style = window.getComputedStyle(node);
  var boxSizing = style.getPropertyValue('box-sizing') || style.getPropertyValue('-moz-box-sizing') || style.getPropertyValue('-webkit-box-sizing');
  var paddingSize = parseFloat(style.getPropertyValue('padding-bottom')) + parseFloat(style.getPropertyValue('padding-top'));
  var borderSize = parseFloat(style.getPropertyValue('border-bottom-width')) + parseFloat(style.getPropertyValue('border-top-width'));
  var sizingStyle = SIZING_STYLE.map(function (name) {
    return "".concat(name, ":").concat(style.getPropertyValue(name));
  }).join(';');
  var nodeInfo = {
    sizingStyle: sizingStyle,
    paddingSize: paddingSize,
    borderSize: borderSize,
    boxSizing: boxSizing
  };

  if (useCache && nodeRef) {
    computedStyleCache[nodeRef] = nodeInfo;
  }

  return nodeInfo;
}
function calculateNodeHeight(uiTextNode) {
  var useCache = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
  var minRows = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
  var maxRows = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;

  if (!hiddenTextarea) {
    hiddenTextarea = document.createElement('textarea');
    hiddenTextarea.setAttribute('tab-index', '-1');
    hiddenTextarea.setAttribute('aria-hidden', 'true');
    document.body.appendChild(hiddenTextarea);
  } // Fix wrap="off" issue
  // https://github.com/ant-design/ant-design/issues/6577


  if (uiTextNode.getAttribute('wrap')) {
    hiddenTextarea.setAttribute('wrap', uiTextNode.getAttribute('wrap'));
  } else {
    hiddenTextarea.removeAttribute('wrap');
  } // Copy all CSS properties that have an impact on the height of the content in
  // the textbox


  var _calculateNodeStyling = calculateNodeStyling(uiTextNode, useCache),
      paddingSize = _calculateNodeStyling.paddingSize,
      borderSize = _calculateNodeStyling.borderSize,
      boxSizing = _calculateNodeStyling.boxSizing,
      sizingStyle = _calculateNodeStyling.sizingStyle; // Need to have the overflow attribute to hide the scrollbar otherwise
  // text-lines will not calculated properly as the shadow will technically be
  // narrower for content


  hiddenTextarea.setAttribute('style', "".concat(sizingStyle, ";").concat(HIDDEN_TEXTAREA_STYLE));
  hiddenTextarea.value = uiTextNode.value || uiTextNode.placeholder || '';
  var minHeight = Number.MIN_SAFE_INTEGER;
  var maxHeight = Number.MAX_SAFE_INTEGER;
  var height = hiddenTextarea.scrollHeight;
  var overflowY;

  if (boxSizing === 'border-box') {
    // border-box: add border, since height = content + padding + border
    height += borderSize;
  } else if (boxSizing === 'content-box') {
    // remove padding, since height = content
    height -= paddingSize;
  }

  if (minRows !== null || maxRows !== null) {
    // measure height of a textarea with a single row
    hiddenTextarea.value = ' ';
    var singleRowHeight = hiddenTextarea.scrollHeight - paddingSize;

    if (minRows !== null) {
      minHeight = singleRowHeight * minRows;

      if (boxSizing === 'border-box') {
        minHeight = minHeight + paddingSize + borderSize;
      }

      height = Math.max(minHeight, height);
    }

    if (maxRows !== null) {
      maxHeight = singleRowHeight * maxRows;

      if (boxSizing === 'border-box') {
        maxHeight = maxHeight + paddingSize + borderSize;
      }

      overflowY = height > maxHeight ? '' : 'hidden';
      height = Math.min(maxHeight, height);
    }
  }

  return {
    height: height,
    minHeight: minHeight,
    maxHeight: maxHeight,
    overflowY: overflowY,
    resize: 'none'
  };
}
// EXTERNAL MODULE: ./node_modules/shallowequal/index.js
var shallowequal = __webpack_require__("Gytx");
var shallowequal_default = /*#__PURE__*/__webpack_require__.n(shallowequal);

// CONCATENATED MODULE: ./node_modules/rc-textarea/es/ResizableTextArea.js












 // eslint-disable-next-line @typescript-eslint/naming-convention

var RESIZE_STATUS;

(function (RESIZE_STATUS) {
  RESIZE_STATUS[RESIZE_STATUS["NONE"] = 0] = "NONE";
  RESIZE_STATUS[RESIZE_STATUS["RESIZING"] = 1] = "RESIZING";
  RESIZE_STATUS[RESIZE_STATUS["RESIZED"] = 2] = "RESIZED";
})(RESIZE_STATUS || (RESIZE_STATUS = {}));

var ResizableTextArea_ResizableTextArea = /*#__PURE__*/function (_React$Component) {
  Object(inherits["a" /* default */])(ResizableTextArea, _React$Component);

  var _super = Object(createSuper["a" /* default */])(ResizableTextArea);

  function ResizableTextArea(props) {
    var _this;

    Object(classCallCheck["a" /* default */])(this, ResizableTextArea);

    _this = _super.call(this, props);
    _this.nextFrameActionId = void 0;
    _this.resizeFrameId = void 0;
    _this.textArea = void 0;

    _this.saveTextArea = function (textArea) {
      _this.textArea = textArea;
    };

    _this.handleResize = function (size) {
      var resizeStatus = _this.state.resizeStatus;
      var _this$props = _this.props,
          autoSize = _this$props.autoSize,
          onResize = _this$props.onResize;

      if (resizeStatus !== RESIZE_STATUS.NONE) {
        return;
      }

      if (typeof onResize === 'function') {
        onResize(size);
      }

      if (autoSize) {
        _this.resizeOnNextFrame();
      }
    };

    _this.resizeOnNextFrame = function () {
      cancelAnimationFrame(_this.nextFrameActionId);
      _this.nextFrameActionId = requestAnimationFrame(_this.resizeTextarea);
    };

    _this.resizeTextarea = function () {
      var autoSize = _this.props.autoSize;

      if (!autoSize || !_this.textArea) {
        return;
      }

      var minRows = autoSize.minRows,
          maxRows = autoSize.maxRows;
      var textareaStyles = calculateNodeHeight(_this.textArea, false, minRows, maxRows);

      _this.setState({
        textareaStyles: textareaStyles,
        resizeStatus: RESIZE_STATUS.RESIZING
      }, function () {
        cancelAnimationFrame(_this.resizeFrameId);
        _this.resizeFrameId = requestAnimationFrame(function () {
          _this.setState({
            resizeStatus: RESIZE_STATUS.RESIZED
          }, function () {
            _this.resizeFrameId = requestAnimationFrame(function () {
              _this.setState({
                resizeStatus: RESIZE_STATUS.NONE
              });

              _this.fixFirefoxAutoScroll();
            });
          });
        });
      });
    };

    _this.renderTextArea = function () {
      var _this$props2 = _this.props,
          _this$props2$prefixCl = _this$props2.prefixCls,
          prefixCls = _this$props2$prefixCl === void 0 ? 'rc-textarea' : _this$props2$prefixCl,
          autoSize = _this$props2.autoSize,
          onResize = _this$props2.onResize,
          className = _this$props2.className,
          disabled = _this$props2.disabled;
      var _this$state = _this.state,
          textareaStyles = _this$state.textareaStyles,
          resizeStatus = _this$state.resizeStatus;
      var otherProps = Object(omit["a" /* default */])(_this.props, ['prefixCls', 'onPressEnter', 'autoSize', 'defaultValue', 'onResize']);
      var cls = classnames_default()(prefixCls, className, Object(defineProperty["a" /* default */])({}, "".concat(prefixCls, "-disabled"), disabled)); // Fix https://github.com/ant-design/ant-design/issues/6776
      // Make sure it could be reset when using form.getFieldDecorator

      if ('value' in otherProps) {
        otherProps.value = otherProps.value || '';
      }

      var style = Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, _this.props.style), textareaStyles), resizeStatus === RESIZE_STATUS.RESIZING ? // React will warning when mix `overflow` & `overflowY`.
      // We need to define this separately.
      {
        overflowX: 'hidden',
        overflowY: 'hidden'
      } : null);

      return /*#__PURE__*/external_window_React_["createElement"](es, {
        onResize: _this.handleResize,
        disabled: !(autoSize || onResize)
      }, /*#__PURE__*/external_window_React_["createElement"]("textarea", Object(esm_extends["a" /* default */])({}, otherProps, {
        className: cls,
        style: style,
        ref: _this.saveTextArea
      })));
    };

    _this.state = {
      textareaStyles: {},
      resizeStatus: RESIZE_STATUS.NONE
    };
    return _this;
  }

  Object(createClass["a" /* default */])(ResizableTextArea, [{
    key: "componentDidUpdate",
    value: function componentDidUpdate(prevProps) {
      // Re-render with the new content or new autoSize property then recalculate the height as required.
      if (prevProps.value !== this.props.value || !shallowequal_default()(prevProps.autoSize, this.props.autoSize)) {
        this.resizeTextarea();
      }
    }
  }, {
    key: "componentWillUnmount",
    value: function componentWillUnmount() {
      cancelAnimationFrame(this.nextFrameActionId);
      cancelAnimationFrame(this.resizeFrameId);
    } // https://github.com/ant-design/ant-design/issues/21870

  }, {
    key: "fixFirefoxAutoScroll",
    value: function fixFirefoxAutoScroll() {
      try {
        if (document.activeElement === this.textArea) {
          var currentStart = this.textArea.selectionStart;
          var currentEnd = this.textArea.selectionEnd;
          this.textArea.setSelectionRange(currentStart, currentEnd);
        }
      } catch (e) {// Fix error in Chrome:
        // Failed to read the 'selectionStart' property from 'HTMLInputElement'
        // http://stackoverflow.com/q/21177489/3040605
      }
    }
  }, {
    key: "render",
    value: function render() {
      return this.renderTextArea();
    }
  }]);

  return ResizableTextArea;
}(external_window_React_["Component"]);

/* harmony default export */ var es_ResizableTextArea = (ResizableTextArea_ResizableTextArea);
// CONCATENATED MODULE: ./node_modules/rc-textarea/es/index.js








var es_TextArea = /*#__PURE__*/function (_React$Component) {
  Object(inherits["a" /* default */])(TextArea, _React$Component);

  var _super = Object(createSuper["a" /* default */])(TextArea);

  function TextArea(props) {
    var _this;

    Object(classCallCheck["a" /* default */])(this, TextArea);

    _this = _super.call(this, props);
    _this.resizableTextArea = void 0;

    _this.focus = function () {
      _this.resizableTextArea.textArea.focus();
    };

    _this.saveTextArea = function (resizableTextArea) {
      _this.resizableTextArea = resizableTextArea;
    };

    _this.handleChange = function (e) {
      var onChange = _this.props.onChange;

      _this.setValue(e.target.value, function () {
        _this.resizableTextArea.resizeTextarea();
      });

      if (onChange) {
        onChange(e);
      }
    };

    _this.handleKeyDown = function (e) {
      var _this$props = _this.props,
          onPressEnter = _this$props.onPressEnter,
          onKeyDown = _this$props.onKeyDown;

      if (e.keyCode === 13 && onPressEnter) {
        onPressEnter(e);
      }

      if (onKeyDown) {
        onKeyDown(e);
      }
    };

    var value = typeof props.value === 'undefined' || props.value === null ? props.defaultValue : props.value;
    _this.state = {
      value: value
    };
    return _this;
  }

  Object(createClass["a" /* default */])(TextArea, [{
    key: "setValue",
    value: function setValue(value, callback) {
      if (!('value' in this.props)) {
        this.setState({
          value: value
        }, callback);
      }
    }
  }, {
    key: "blur",
    value: function blur() {
      this.resizableTextArea.textArea.blur();
    }
  }, {
    key: "render",
    value: function render() {
      return /*#__PURE__*/external_window_React_["createElement"](es_ResizableTextArea, Object(esm_extends["a" /* default */])({}, this.props, {
        value: this.state.value,
        onKeyDown: this.handleKeyDown,
        onChange: this.handleChange,
        ref: this.saveTextArea
      }));
    }
  }], [{
    key: "getDerivedStateFromProps",
    value: function getDerivedStateFromProps(nextProps) {
      if ('value' in nextProps) {
        return {
          value: nextProps.value
        };
      }

      return null;
    }
  }]);

  return TextArea;
}(external_window_React_["Component"]);


/* harmony default export */ var rc_textarea_es = __webpack_exports__["default"] = (es_TextArea);

/***/ }),

/***/ "ZW9T":
/*!************************************************************!*\
  !*** ./src/components/monaco-editor/index.jsx + 1 modules ***!
  \************************************************************/
/*! exports provided: getLanguageByMirrorName, default, DiffEditor */
/*! exports used: DiffEditor, default */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/createForOfIteratorHelper.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/objectSpread2.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/objectWithoutProperties.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/slicedToArray.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/antd/es/message/index.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/antd/es/message/style/index.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/resize-observer-polyfill/dist/ResizeObserver.es.js (<- Module uses injected variables (global)) */
/*! ModuleConcatenation bailout: Cannot concat with external "window.React" (<- Module is not an ECMAScript module) */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";

// EXPORTS
__webpack_require__.d(__webpack_exports__, "a", function() { return /* binding */ DiffEditor; });

// UNUSED EXPORTS: getLanguageByMirrorName

// EXTERNAL MODULE: ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/objectSpread2.js
var objectSpread2 = __webpack_require__("k1fw");

// EXTERNAL MODULE: ./node_modules/antd/es/message/style/index.js
var message_style = __webpack_require__("miYZ");

// EXTERNAL MODULE: ./node_modules/antd/es/message/index.js + 1 modules
var message = __webpack_require__("tsqr");

// EXTERNAL MODULE: ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/createForOfIteratorHelper.js
var createForOfIteratorHelper = __webpack_require__("rAM+");

// EXTERNAL MODULE: ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/slicedToArray.js + 1 modules
var slicedToArray = __webpack_require__("tJVT");

// EXTERNAL MODULE: ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/objectWithoutProperties.js + 1 modules
var objectWithoutProperties = __webpack_require__("PpiC");

// EXTERNAL MODULE: external "window.React"
var external_window_React_ = __webpack_require__("cDcd");
var external_window_React_default = /*#__PURE__*/__webpack_require__.n(external_window_React_);

// EXTERNAL MODULE: ./node_modules/resize-observer-polyfill/dist/ResizeObserver.es.js
var ResizeObserver_es = __webpack_require__("bdgK");

// CONCATENATED MODULE: ./src/components/monaco-editor/monaco-suggest-config.tsx


function getSuggestions(monaco, model, position, keywords, snippts) {
  var word = model.getWordUntilPosition(position);
  var range = {
    startLineNumber: position.lineNumber,
    endLineNumber: position.lineNumber,
    startColumn: word.startColumn,
    endColumn: word.endColumn
  };
  var rs = keywords.map(function (item) {
    return {
      label: item,
      kind: monaco.languages.CompletionItemKind.Keyword,
      insertText: item,
      insertTextRules: monaco.languages.CompletionItemInsertTextRule.InsertAsSnippet,
      range: range
    };
  });
  snippts.map(function (item) {
    rs.push(Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, item), {}, {
      range: range
    }));
  });
  return rs;
}

/* harmony default export */ var monaco_suggest_config = (function (monaco) {
  var ifelse = {
    label: 'ifelse',
    kind: monaco.languages.CompletionItemKind.Method,
    insertText: ['if (${1:condition}) {', '\t$0', '} else {', '\t', '}'].join('\n'),
    insertTextRules: monaco.languages.CompletionItemInsertTextRule.InsertAsSnippet
  };
  var cKeywords = ['auto', 'break', 'case', 'char', 'const', 'continue', 'default', 'do', 'double', 'else', 'enum', 'extern', 'float', 'for', 'goto', 'if', 'int', 'long', 'register', 'return', 'short', 'signed', 'sizeof', 'static', 'struct', 'switch', 'typedef', 'union', 'unsigned', 'void', 'volatile', 'while', 'inline', 'restrict', '_Bool', '_Complex', '_Imaginary', '_Alignas', '_Alignof', '_Atomic', '_Static_assert', '_Noreturn', '_Thread_local', '_Generic'];
  monaco.languages.registerCompletionItemProvider('cpp', {
    provideCompletionItems: function provideCompletionItems(model, position) {
      var suggestions = getSuggestions(monaco, model, position, cKeywords, [ifelse]);
      return {
        suggestions: suggestions
      };
    }
  });
  var pythonkeywords = ['False', 'None', 'True', 'and', 'as', 'assert', 'break', 'class', 'continue', 'def', 'del', 'elif', 'else', 'except', 'finally', 'for', 'from', 'global', 'if', 'import', 'in', 'is', 'lambda', 'nonlocal', 'not', 'or', 'pass', 'raise', 'return', 'try', 'while', 'with', 'yield'];
  monaco.languages.registerCompletionItemProvider('python', {
    provideCompletionItems: function provideCompletionItems(model, position) {
      var snippets = [{
        label: 'print',
        kind: monaco.languages.CompletionItemKind.Snippet,
        insertText: ['print($0)'].join('\n'),
        insertTextRules: monaco.languages.CompletionItemInsertTextRule.InsertAsSnippet
      }];
      var suggestions = getSuggestions(monaco, model, position, pythonkeywords, snippets);
      return {
        suggestions: suggestions
      };
    }
  });
  var javaKeywords = ['abstract', 'assert', 'boolean', 'break', 'byte', 'case', 'catch', 'char', 'class', 'const', 'continue', 'default', 'do', 'double', 'else', 'enum', 'extends', 'final', 'finally', 'float', 'for', 'goto', 'if', 'implements', 'import', 'instance of', 'int', 'interface', 'long', 'native', 'new', 'package', 'private', 'protected', 'public', 'return', 'strictfp', 'short', 'static', 'super', 'switch', 'synchronized', 'this', 'throw', 'throws', 'transient', 'try', 'void', 'volatile', 'while'];
  monaco.languages.registerCompletionItemProvider('java', {
    provideCompletionItems: function provideCompletionItems(model, position) {
      var snippets = [ifelse, {
        label: 'main',
        kind: monaco.languages.CompletionItemKind.Snippet,
        insertText: ['public static void main(String[] args) {', '\t$0', '}'].join('\n'),
        insertTextRules: monaco.languages.CompletionItemInsertTextRule.InsertAsSnippet
      }, {
        label: 'System.out.print',
        kind: monaco.languages.CompletionItemKind.Snippet,
        insertText: ['System.out.print($0)'].join('\n'),
        insertTextRules: monaco.languages.CompletionItemInsertTextRule.InsertAsSnippet
      }];
      var suggestions = getSuggestions(monaco, model, position, javaKeywords, snippets);
      return {
        suggestions: suggestions
      };
    }
  });
});
var tipTxt = '该任务关卡设置了禁止复制粘贴，请手动输入代码。';
// EXTERNAL MODULE: ./node_modules/lodash/lodash.js
var lodash = __webpack_require__("LvDl");

// CONCATENATED MODULE: ./src/components/monaco-editor/index.jsx











function processSize(size) {
  return !/^\d+$/.test(size) ? size : "".concat(size, "px");
}

function noop() {}

var __prevent_trigger_change_event = false;
var DICT = {
  'Python3.6': 'python',
  'Python2.7': 'python',
  Dynamips: 'cpp',
  Java: 'java',
  Web: 'php',
  Html: 'html',
  Hive: 'sql',
  Hadoop: 'java',
  SDL: 'cpp',
  PHP: 'php',
  Matlab: 'python',
  Git: 'python',
  Python: 'python',
  'C/C++': 'cpp',
  'C++': 'cpp',
  C: 'cpp',
  Ruby: 'ruby',
  Shell: 'shell',
  JavaScript: 'javascript',
  Perl6: 'perl',
  Kotlin: 'kotlin',
  Elixir: 'elixir',
  Android: 'java',
  JavaWeb: 'java',
  Go: 'go',
  Spark: 'sql',
  MachineLearning: 'python',
  Verilog: 'xml',
  'Verilog/VNC': 'xml',
  Docker: 'dockerfile',
  'C#': 'csharp',
  SQLite3: 'sql',
  Oracle: 'sql',
  Vhdl: 'vhdl',
  R: 'r',
  Swift: 'swift',
  SQLServer: 'mysql',
  MySQL: 'mysql',
  Mongo: 'sql',
  PostgreSql: 'pgsql',
  Hbase: 'powershell',
  Sqoop: 'sql',
  Nasm: 'cpp',
  Kafka: 'java',
  Flink: 'java',
  Sml: 'javascript',
  OpenGL: 'cpp',
  Perl5: 'perl',
  Orange: 'python'
};
function getLanguageByMirrorName() {
  var mirror_name = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
  var lang = mirror_name;

  if (Array.isArray(mirror_name)) {
    for (var i = 0; i < mirror_name.length; i++) {
      var languageVal = DICT[mirror_name[i]];

      if (languageVal) {
        return languageVal;
      }
    }

    return lang[0];
  }

  return DICT[lang] || lang;
} //onCodeChange 必须是幂等的，因为只会注册一次，如果有变化，会响应旧的，产生脏数据

var monaco_editor_monaco = null;
/* harmony default export */ var monaco_editor = __webpack_exports__["b"] = (function (_ref) {
  var _ref$width = _ref.width,
      width = _ref$width === void 0 ? '100%' : _ref$width,
      _ref$height = _ref.height,
      height = _ref$height === void 0 ? '100%' : _ref$height,
      value = _ref.value,
      _ref$language = _ref.language,
      language = _ref$language === void 0 ? 'javascript' : _ref$language,
      _ref$style = _ref.style,
      style = _ref$style === void 0 ? {} : _ref$style,
      _ref$options = _ref.options,
      options = _ref$options === void 0 ? {} : _ref$options,
      _ref$overrideServices = _ref.overrideServices,
      overrideServices = _ref$overrideServices === void 0 ? {} : _ref$overrideServices,
      _ref$theme = _ref.theme,
      theme = _ref$theme === void 0 ? 'vs-dark' : _ref$theme,
      onEditBlur = _ref.onEditBlur,
      onSave = _ref.onSave,
      _ref$autoHeight = _ref.autoHeight,
      autoHeight = _ref$autoHeight === void 0 ? false : _ref$autoHeight,
      _ref$forbidCopy = _ref.forbidCopy,
      forbidCopy = _ref$forbidCopy === void 0 ? false : _ref$forbidCopy,
      _ref$onChange = _ref.onChange,
      onChange = _ref$onChange === void 0 ? noop : _ref$onChange,
      _ref$editorDidMount = _ref.editorDidMount,
      editorDidMount = _ref$editorDidMount === void 0 ? noop : _ref$editorDidMount,
      _ref$onFocus = _ref.onFocus,
      onFocus = _ref$onFocus === void 0 ? noop : _ref$onFocus,
      _ref$filename = _ref.filename,
      filename = _ref$filename === void 0 ? 'educoder.txt' : _ref$filename,
      props = Object(objectWithoutProperties["a" /* default */])(_ref, ["width", "height", "value", "language", "style", "options", "overrideServices", "theme", "onEditBlur", "onSave", "autoHeight", "forbidCopy", "onChange", "editorDidMount", "onFocus", "filename"]);

  var editorEl = Object(external_window_React_["useRef"])();
  var editor = Object(external_window_React_["useRef"])({});
  var timeRef = Object(external_window_React_["useRef"])();
  var inputLock = Object(external_window_React_["useRef"])(false);
  var inputLockTime = Object(external_window_React_["useRef"])();

  var _useState = Object(external_window_React_["useState"])(false),
      _useState2 = Object(slicedToArray["a" /* default */])(_useState, 2),
      init = _useState2[0],
      setInit = _useState2[1];

  function onLayout() {
    var ro;

    if (editorEl.current) {
      ro = new ResizeObserver_es["default"](function (entries) {
        var _iterator = Object(createForOfIteratorHelper["a" /* default */])(entries),
            _step;

        try {
          for (_iterator.s(); !(_step = _iterator.n()).done;) {
            var entry = _step.value;

            if (entry.target.offsetHeight > 0 || entry.target.offsetWidth > 0) {
              editor.current.instance.layout();
            }
          }
        } catch (err) {
          _iterator.e(err);
        } finally {
          _iterator.f();
        }
      });
      ro.observe(editorEl.current);
    }

    return ro;
  }

  function tipWarn() {
    message["b" /* default */].warn(decodeURIComponent(tipTxt));
  }

  var setCodeValue = function setCodeValue() {
    var instance = editor.current.instance;

    if (value != null && instance && init) {
      var model = instance.getModel();

      if (model && value !== model.getValue()) {
        __prevent_trigger_change_event = true;
        model.setValue(value);
        instance.layout();
        __prevent_trigger_change_event = false;
      }
    }
  };

  Object(external_window_React_["useEffect"])(function () {
    if (timeRef.current) clearTimeout(timeRef.current);
    timeRef.current = setTimeout(function () {
      setCodeValue();
    }, 500);
  }, [value, init, editor.current]);

  function onPaste() {
    var instance = editor.current.instance;

    if (instance) {
      var selection = instance.getSelection();
      var pastePos = editor.current.pastePos || {};
      var range = new monaco_editor_monaco.Range(pastePos.startLineNumber || selection.endLineNumber, pastePos.startColumn || selection.endColumn, pastePos.endLineNumber || selection.endLineNumber, pastePos.endColumn || selection.endColumn);
      setTimeout(function () {
        instance.executeEdits('', [{
          range: range,
          text: ''
        }]);
      }, 300);
    }
  }

  function onSaveHandler(e) {
    if ((window.navigator.platform.match('Mac') ? e.metaKey : e.ctrlKey) && e.keyCode == 83) {
      e.preventDefault();
      onSave();
    }
  }

  var autoCalcHeight = function autoCalcHeight() {
    if (autoHeight && editor.current.instance) {
      var _height = editor.current.instance.getContentHeight();

      setFixedHeight(_height < height ? height : _height);
    } else {
      setFixedHeight(height);
    }
  };

  function fakeClick(obj) {
    var ev = document.createEvent('MouseEvents');
    ev.initMouseEvent('click', true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);
    obj.dispatchEvent(ev);
  }

  function exportRaw(name, data) {
    var urlObject = window.URL || window.webkitURL || window;
    var export_blob = new Blob([data]);
    var save_link = document.createElementNS('http://www.w3.org/1999/xhtml', 'a');
    save_link.href = urlObject.createObjectURL(export_blob);
    save_link.download = name;
    fakeClick(save_link);
  }

  Object(external_window_React_["useEffect"])(function () {
    autoCalcHeight();
  }, [autoCalcHeight]);
  Object(external_window_React_["useEffect"])(function () {
    if (editorEl.current && !init) {
      undefined;

      undefined;

      __webpack_require__.e(/*! import() | monaco-editor */ 27).then(__webpack_require__.t.bind(null, /*! monaco-editor/esm/vs/editor/editor.api.js */ "M/lh", 7)).then(function (mod) {
        try {
          monaco_editor_monaco = mod;
          editor.current.instance = monaco_editor_monaco.editor.create(editorEl.current, {
            value: value,
            language: getLanguageByMirrorName(language),
            theme: theme,
            requireConfig: {
              'vs/nls': {
                availableLanguages: {
                  '*': 'zh-cn'
                }
              }
            },
            wordWrap: true
          }, overrideServices);
          var instance = editor.current.instance;
          editorDidMount(instance, monaco_editor_monaco);
          setTimeout(function () {
            autoCalcHeight();
            editor.current.instance.addAction({
              id: 'd123123',
              label: 'Download File',
              contextMenuGroupId: '9_cutcopypaste',
              run: function run() {
                exportRaw(filename || 'educoder.txt', instance.getValue());
              }
            });
          }, 500);
          editor.current.subscription = instance.onDidChangeModelContent(function (event) {
            if (!inputLock.current) {
              autoCalcHeight();
              onChange(instance.getValue(), event);
            } else {
              clearTimeout(inputLockTime.current);
            }

            inputLockTime.current = setTimeout(function () {
              inputLock.current = false;
            }, 500);
          });
          if (!window.Monaco) monaco_suggest_config(monaco_editor_monaco);

          if (forbidCopy) {
            instance.addCommand(monaco_editor_monaco.KeyMod.CtrlCmd | monaco_editor_monaco.KeyMod.Shift | monaco_editor_monaco.KeyCode.KEY_V, function () {
              tipWarn();
              return null;
            });
            instance.addCommand(monaco_editor_monaco.KeyMod.CtrlCmd | monaco_editor_monaco.KeyCode.KEY_C, function () {
              tipWarn();
              return null;
            });
          }

          window.Monaco = monaco_editor_monaco;

          if (onEditBlur) {
            instance.onDidBlurEditorWidget(function () {
              onEditBlur(instance.getValue());
            });
          }

          if (onFocus) {
            instance.onDidFocusEditorText(function () {
              onFocus(instance.getValue());
            });
          }

          if (forbidCopy) {
            instance.addCommand(monaco_editor_monaco.KeyMod.CtrlCmd | monaco_editor_monaco.KeyCode.KEY_V, function () {
              tipWarn();
              return null;
            });
            instance.onDidPaste(function (pos) {
              editor.current.pastePos = pos;
            });

            try {
              window.addEventListener('paste', onPaste);
            } catch (e) {}
          }

          var ro = onLayout();
          setInit(true);
          return function () {
            var el = editor.current.instance;
            el.dispose();
            var model = el.getModel();

            if (model) {
              model.dispose();
            }

            if (editor.current.subscription) {
              editor.current.subscription.dispose();
            }

            if (forbidCopy) {
              window.removeEventListener('paste', onPaste);
            }

            ro.unobserve(editorEl.current);
          };
        } catch (e) {//  ;
        }
      });
    }
  }, []);
  Object(external_window_React_["useEffect"])(function () {
    var instance = editor.current.instance;

    if (instance && init) {
      document.addEventListener('keydown', onSaveHandler, false);
      return function () {
        document.removeEventListener('keydown', onSaveHandler);
      };
    }
  }, [onSave, init]);
  Object(external_window_React_["useEffect"])(function () {
    var instance = editor.current.instance;

    if (instance && init) {
      var lang = getLanguageByMirrorName(language);
      monaco_editor_monaco.editor.setModelLanguage(instance.getModel(), lang);
      console.log('language:', language, instance.getModel(), lang);
    }
  }, [language, init]);
  Object(external_window_React_["useEffect"])(function () {
    var instance = editor.current.instance;

    if (instance && init) {
      monaco_editor_monaco.editor.setTheme(theme);
    }
  }, [theme, init]);
  Object(external_window_React_["useEffect"])(function () {
    var instance = editor.current.instance;

    if (instance && init) {
      instance.updateOptions(Object(objectSpread2["a" /* default */])({}, options));
      setTimeout(function () {
        instance.getModel().updateOptions(Object(objectSpread2["a" /* default */])({}, options));
      }, 200);
    }
  }, [JSON.stringify(options), init]);
  Object(external_window_React_["useEffect"])(function () {
    var instance = editor.current.instance;

    if (instance && init) {
      instance.layout();
    }
  }, [width, height, init]); // const fixedWidth = processSize(width);
  // const fixedHeight = processSize(height);

  var _useState3 = Object(external_window_React_["useState"])(processSize(width)),
      _useState4 = Object(slicedToArray["a" /* default */])(_useState3, 2),
      fixedWidth = _useState4[0],
      setFixedWidth = _useState4[1];

  var _useState5 = Object(external_window_React_["useState"])(processSize(height)),
      _useState6 = Object(slicedToArray["a" /* default */])(_useState5, 2),
      fixedHeight = _useState6[0],
      setFixedHeight = _useState6[1];

  var mergeStyle = Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, style), {}, {
    width: fixedWidth,
    height: fixedHeight
  });

  return /*#__PURE__*/external_window_React_default.a.createElement("div", {
    className: "my-monaco-editor",
    ref: editorEl,
    style: mergeStyle
  });
});
function DiffEditor(_ref2) {
  var _ref2$width = _ref2.width,
      width = _ref2$width === void 0 ? '100%' : _ref2$width,
      _ref2$height = _ref2.height,
      height = _ref2$height === void 0 ? '100%' : _ref2$height,
      original = _ref2.original,
      modified = _ref2.modified,
      language = _ref2.language,
      _ref2$options = _ref2.options,
      options = _ref2$options === void 0 ? {} : _ref2$options;
  var editorEl = Object(external_window_React_["useRef"])();

  var _useState7 = Object(external_window_React_["useState"])(null),
      _useState8 = Object(slicedToArray["a" /* default */])(_useState7, 2),
      instance = _useState8[0],
      setInstance = _useState8[1];

  function onLayout(instance) {
    var ro;

    if (editorEl.current) {
      ro = new ResizeObserver_es["default"](function (entries) {
        var _iterator2 = Object(createForOfIteratorHelper["a" /* default */])(entries),
            _step2;

        try {
          for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
            var entry = _step2.value;

            if (entry.target.offsetHeight > 0 || entry.target.offsetWidth > 0) {
              instance.layout();
            }
          }
        } catch (err) {
          _iterator2.e(err);
        } finally {
          _iterator2.f();
        }
      });
      ro.observe(editorEl.current);
    }

    return ro;
  }

  Object(external_window_React_["useEffect"])(function () {
    if (editorEl.current) {
      __webpack_require__.e(/*! import() | monaco-editor */ 27).then(__webpack_require__.t.bind(null, /*! monaco-editor/esm/vs/editor/editor.api.js */ "M/lh", 7)).then(function (mod) {
        monaco_editor_monaco = mod;
        var instance = monaco_editor_monaco.editor.createDiffEditor(editorEl.current, Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({
          enableSplitViewResizing: false,
          scrollBeyondLastLine: false,
          roundedSelection: false,
          renderIndicators: false,
          useShadows: false,
          horizontal: 'hidden',
          lineNumbers: 'off',
          ignoreTrimWhitespace: false,
          followsCaret: true,
          // resets the navigator state when the user selects something in the editor
          ignoreCharChanges: true,
          // jump from line to line,
          minimap: {
            enabled: false
          },
          readOnly: true
        }, options), {}, {
          wordWrap: true
        }));
        setInstance(instance);
        var ro = onLayout(instance);
        return function () {
          instance.dispose();
          var model = instance.getModel();

          if (model) {
            model.dispose();
          }

          ro.unobserve(editorEl.current);
        };
      });
    }
  }, []);
  Object(external_window_React_["useEffect"])(function () {
    if (instance) {
      instance.setModel({
        original: monaco_editor_monaco.editor.createModel(original, language),
        modified: monaco_editor_monaco.editor.createModel(modified, language)
      });
    }
  }, [original, modified, language, instance]);
  var fixedWidth = processSize(width);
  var fixedHeight = processSize(height);
  var style = {
    width: fixedWidth,
    height: fixedHeight
  };
  return /*#__PURE__*/external_window_React_default.a.createElement("div", {
    className: "my-diff-editor",
    ref: editorEl,
    style: style
  });
}

/***/ }),

/***/ "ZpRC":
/*!*************************************************************************!*\
  !*** ./node_modules/scroll-into-view-if-needed/es/index.js + 1 modules ***!
  \*************************************************************************/
/*! exports provided: default */
/*! exports used: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";

// CONCATENATED MODULE: ./node_modules/compute-scroll-into-view/dist/index.module.js
function t(t){return"object"==typeof t&&null!=t&&1===t.nodeType}function e(t,e){return(!e||"hidden"!==t)&&"visible"!==t&&"clip"!==t}function n(t,n){if(t.clientHeight<t.scrollHeight||t.clientWidth<t.scrollWidth){var r=getComputedStyle(t,null);return e(r.overflowY,n)||e(r.overflowX,n)||function(t){var e=function(t){if(!t.ownerDocument||!t.ownerDocument.defaultView)return null;try{return t.ownerDocument.defaultView.frameElement}catch(t){return null}}(t);return!!e&&(e.clientHeight<t.scrollHeight||e.clientWidth<t.scrollWidth)}(t)}return!1}function r(t,e,n,r,i,o,l,d){return o<t&&l>e||o>t&&l<e?0:o<=t&&d<=n||l>=e&&d>=n?o-t-r:l>e&&d<n||o<t&&d>n?l-e+i:0}/* harmony default export */ var index_module = (function(e,i){var o=window,l=i.scrollMode,d=i.block,u=i.inline,h=i.boundary,a=i.skipOverflowHiddenElements,c="function"==typeof h?h:function(t){return t!==h};if(!t(e))throw new TypeError("Invalid target");for(var f=document.scrollingElement||document.documentElement,s=[],p=e;t(p)&&c(p);){if((p=p.parentElement)===f){s.push(p);break}null!=p&&p===document.body&&n(p)&&!n(document.documentElement)||null!=p&&n(p,a)&&s.push(p)}for(var m=o.visualViewport?o.visualViewport.width:innerWidth,g=o.visualViewport?o.visualViewport.height:innerHeight,w=window.scrollX||pageXOffset,v=window.scrollY||pageYOffset,W=e.getBoundingClientRect(),b=W.height,H=W.width,y=W.top,E=W.right,M=W.bottom,V=W.left,x="start"===d||"nearest"===d?y:"end"===d?M:y+b/2,I="center"===u?V+H/2:"end"===u?E:V,C=[],T=0;T<s.length;T++){var k=s[T],B=k.getBoundingClientRect(),D=B.height,O=B.width,R=B.top,X=B.right,Y=B.bottom,L=B.left;if("if-needed"===l&&y>=0&&V>=0&&M<=g&&E<=m&&y>=R&&M<=Y&&V>=L&&E<=X)return C;var S=getComputedStyle(k),j=parseInt(S.borderLeftWidth,10),q=parseInt(S.borderTopWidth,10),z=parseInt(S.borderRightWidth,10),A=parseInt(S.borderBottomWidth,10),F=0,G=0,J="offsetWidth"in k?k.offsetWidth-k.clientWidth-j-z:0,K="offsetHeight"in k?k.offsetHeight-k.clientHeight-q-A:0;if(f===k)F="start"===d?x:"end"===d?x-g:"nearest"===d?r(v,v+g,g,q,A,v+x,v+x+b,b):x-g/2,G="start"===u?I:"center"===u?I-m/2:"end"===u?I-m:r(w,w+m,m,j,z,w+I,w+I+H,H),F=Math.max(0,F+v),G=Math.max(0,G+w);else{F="start"===d?x-R-q:"end"===d?x-Y+A+K:"nearest"===d?r(R,Y,D,q,A+K,x,x+b,b):x-(R+D/2)+K/2,G="start"===u?I-L-j:"center"===u?I-(L+O/2)+J/2:"end"===u?I-X+z+J:r(L,X,O,j,z+J,I,I+H,H);var N=k.scrollLeft,P=k.scrollTop;x+=P-(F=Math.max(0,Math.min(P+F,k.scrollHeight-D+K))),I+=N-(G=Math.max(0,Math.min(N+G,k.scrollWidth-O+J)))}C.push({el:k,top:F,left:G})}return C});
//# sourceMappingURL=index.module.js.map

// CONCATENATED MODULE: ./node_modules/scroll-into-view-if-needed/es/index.js


function isOptionsObject(options) {
  return options === Object(options) && Object.keys(options).length !== 0;
}

function defaultBehavior(actions, behavior) {
  if (behavior === void 0) {
    behavior = 'auto';
  }

  var canSmoothScroll = ('scrollBehavior' in document.body.style);
  actions.forEach(function (_ref) {
    var el = _ref.el,
        top = _ref.top,
        left = _ref.left;

    if (el.scroll && canSmoothScroll) {
      el.scroll({
        top: top,
        left: left,
        behavior: behavior
      });
    } else {
      el.scrollTop = top;
      el.scrollLeft = left;
    }
  });
}

function getOptions(options) {
  if (options === false) {
    return {
      block: 'end',
      inline: 'nearest'
    };
  }

  if (isOptionsObject(options)) {
    return options;
  }

  return {
    block: 'start',
    inline: 'nearest'
  };
}

function scrollIntoView(target, options) {
  var targetIsDetached = !target.ownerDocument.documentElement.contains(target);

  if (isOptionsObject(options) && typeof options.behavior === 'function') {
    return options.behavior(targetIsDetached ? [] : index_module(target, options));
  }

  if (targetIsDetached) {
    return;
  }

  var computeOptions = getOptions(options);
  return defaultBehavior(index_module(target, computeOptions), computeOptions.behavior);
}

/* harmony default export */ var es = __webpack_exports__["a"] = (scrollIntoView);

/***/ }),

/***/ "bT9E":
/*!*****************************************!*\
  !*** ./node_modules/rc-util/es/omit.js ***!
  \*****************************************/
/*! exports provided: default */
/*! exports used: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return omit; });
/* harmony import */ var _babel_runtime_helpers_esm_objectSpread2__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! @babel/runtime/helpers/esm/objectSpread2 */ "VTBJ");

function omit(obj, fields) {
  var clone = Object(_babel_runtime_helpers_esm_objectSpread2__WEBPACK_IMPORTED_MODULE_0__[/* default */ "a"])({}, obj);

  if (Array.isArray(fields)) {
    fields.forEach(function (key) {
      delete clone[key];
    });
  }

  return clone;
}

/***/ }),

/***/ "c5Ni":
/*!******************************************************!*\
  !*** ./node_modules/codemirror/theme/blackboard.css ***!
  \******************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

// extracted by mini-css-extract-plugin

/***/ }),

/***/ "dejd":
/*!***********************************************************!*\
  !*** ./src/components/markdown-editor/toolbar/index.less ***!
  \***********************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

// extracted by mini-css-extract-plugin

/***/ }),

/***/ "dmUQ":
/*!**************************************************************!*\
  !*** ./node_modules/rc-input-number/es/index.js + 1 modules ***!
  \**************************************************************/
/*! exports provided: default */
/*! exports used: default */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/classCallCheck.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/createClass.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/defineProperty.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/getPrototypeOf.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/inherits.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/objectWithoutProperties.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/possibleConstructorReturn.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/classnames/index.js (<- Module is not an ECMAScript module) */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/rc-util/es/KeyCode.js */
/*! ModuleConcatenation bailout: Cannot concat with external "window.React" (<- Module is not an ECMAScript module) */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/objectWithoutProperties.js
var objectWithoutProperties = __webpack_require__("Ff2n");

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/defineProperty.js
var defineProperty = __webpack_require__("rePB");

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/classCallCheck.js
var classCallCheck = __webpack_require__("1OyB");

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/createClass.js
var createClass = __webpack_require__("vuIU");

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/inherits.js
var inherits = __webpack_require__("Ji7U");

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/possibleConstructorReturn.js
var possibleConstructorReturn = __webpack_require__("md7G");

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/getPrototypeOf.js
var getPrototypeOf = __webpack_require__("foSv");

// EXTERNAL MODULE: external "window.React"
var external_window_React_ = __webpack_require__("cDcd");
var external_window_React_default = /*#__PURE__*/__webpack_require__.n(external_window_React_);

// EXTERNAL MODULE: ./node_modules/classnames/index.js
var classnames = __webpack_require__("TSYQ");
var classnames_default = /*#__PURE__*/__webpack_require__.n(classnames);

// EXTERNAL MODULE: ./node_modules/rc-util/es/KeyCode.js
var KeyCode = __webpack_require__("4IlW");

// CONCATENATED MODULE: ./node_modules/rc-input-number/es/InputNumber.js








function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }

function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { Object(defineProperty["a" /* default */])(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = Object(getPrototypeOf["a" /* default */])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = Object(getPrototypeOf["a" /* default */])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return Object(possibleConstructorReturn["a" /* default */])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }

/* eslint-disable react/prop-types */




function noop() {}

function preventDefault(e) {
  e.preventDefault();
}

var defaultParser = function defaultParser(input) {
  return input.replace(/[^\w.-]+/g, '');
};
/**
 * When click and hold on a button - the speed of auto changin the value.
 */


var SPEED = 200;
/**
 * When click and hold on a button - the delay before auto changin the value.
 */

var DELAY = 600;
/**
 * Max Safe Integer -- on IE this is not available, so manually set the number in that case.
 * The reason this is used, instead of Infinity is because numbers above the MSI are unstable
 */

var MAX_SAFE_INTEGER = Number.MAX_SAFE_INTEGER || Math.pow(2, 53) - 1;

var isValidProps = function isValidProps(value) {
  return value !== undefined && value !== null;
};

var isEqual = function isEqual(oldValue, newValue) {
  return newValue === oldValue || typeof newValue === 'number' && typeof oldValue === 'number' && isNaN(newValue) && isNaN(oldValue);
};

var InputNumber_InputNumber = /*#__PURE__*/function (_React$Component) {
  Object(inherits["a" /* default */])(InputNumber, _React$Component);

  var _super = _createSuper(InputNumber);

  function InputNumber(props) {
    var _this;

    Object(classCallCheck["a" /* default */])(this, InputNumber);

    _this = _super.call(this, props);

    _this.onKeyDown = function (e) {
      var _this$props = _this.props,
          onKeyDown = _this$props.onKeyDown,
          onPressEnter = _this$props.onPressEnter;

      if (e.keyCode === KeyCode["a" /* default */].UP) {
        var ratio = _this.getRatio(e);

        _this.up(e, ratio, null);

        _this.stop();
      } else if (e.keyCode === KeyCode["a" /* default */].DOWN) {
        var _ratio = _this.getRatio(e);

        _this.down(e, _ratio, null);

        _this.stop();
      } else if (e.keyCode === KeyCode["a" /* default */].ENTER && onPressEnter) {
        onPressEnter(e);
      } // Trigger user key down


      _this.recordCursorPosition();

      _this.lastKeyCode = e.keyCode;

      if (onKeyDown) {
        for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
          args[_key - 1] = arguments[_key];
        }

        onKeyDown.apply(void 0, [e].concat(args));
      }
    };

    _this.onKeyUp = function (e) {
      var onKeyUp = _this.props.onKeyUp;

      _this.stop();

      _this.recordCursorPosition(); // Trigger user key up


      if (onKeyUp) {
        for (var _len2 = arguments.length, args = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
          args[_key2 - 1] = arguments[_key2];
        }

        onKeyUp.apply(void 0, [e].concat(args));
      }
    };

    _this.onChange = function (e) {
      var onChange = _this.props.onChange;

      if (_this.state.focused) {
        _this.inputting = true;
      }

      _this.rawInput = _this.props.parser(_this.getValueFromEvent(e));

      _this.setState({
        inputValue: _this.rawInput
      });

      onChange(_this.toNumber(_this.rawInput)); // valid number or invalid string
    };

    _this.onMouseUp = function () {
      var onMouseUp = _this.props.onMouseUp;

      _this.recordCursorPosition();

      if (onMouseUp) {
        onMouseUp.apply(void 0, arguments);
      }
    };

    _this.onFocus = function () {
      var _this$props2;

      _this.setState({
        focused: true
      });

      (_this$props2 = _this.props).onFocus.apply(_this$props2, arguments);
    };

    _this.onBlur = function () {
      var onBlur = _this.props.onBlur;
      _this.inputting = false;

      _this.setState({
        focused: false
      });

      var value = _this.getCurrentValidValue(_this.state.inputValue);

      var newValue = _this.setValue(value, noop);

      if (onBlur) {
        var originValue = _this.input.value;

        var displayValue = _this.getInputDisplayValue({
          focus: false,
          value: newValue
        });

        _this.input.value = displayValue ? Number(displayValue) : displayValue;
        onBlur.apply(void 0, arguments);
        _this.input.value = originValue;
      }
    };

    _this.getRatio = function (e) {
      var ratio = 1;

      if (e.metaKey || e.ctrlKey) {
        ratio = 0.1;
      } else if (e.shiftKey) {
        ratio = 10;
      }

      return ratio;
    };

    _this.getFullNum = function (num) {
      if (isNaN(num)) {
        return num;
      }

      if (!/e/i.test(String(num))) {
        return num;
      }

      return Number(num).toFixed(18).replace(/\.?0+$/, '');
    };

    _this.getPrecision = function (value) {
      if (isValidProps(_this.props.precision)) {
        return _this.props.precision;
      }

      var valueString = String(value);

      if (valueString.indexOf('e-') >= 0) {
        return parseInt(valueString.slice(valueString.indexOf('e-') + 2), 10);
      }

      var precision = 0;

      if (valueString.indexOf('.') >= 0) {
        precision = valueString.length - valueString.indexOf('.') - 1;
      }

      return precision;
    };

    _this.getInputDisplayValue = function (state) {
      var _ref = state || _this.state,
          focused = _ref.focused,
          inputValue = _ref.inputValue,
          value = _ref.value;

      var inputDisplayValue;

      if (focused) {
        inputDisplayValue = inputValue;
      } else {
        inputDisplayValue = _this.toPrecisionAsStep(value);
      }

      if (inputDisplayValue === undefined || inputDisplayValue === null) {
        inputDisplayValue = '';
      }

      var inputDisplayValueFormat = _this.formatWrapper(inputDisplayValue);

      if (isValidProps(_this.props.decimalSeparator)) {
        inputDisplayValueFormat = inputDisplayValueFormat.toString().replace('.', _this.props.decimalSeparator);
      }

      return inputDisplayValueFormat;
    };

    _this.recordCursorPosition = function () {
      // Record position
      try {
        _this.cursorStart = _this.input.selectionStart;
        _this.cursorEnd = _this.input.selectionEnd;
        _this.currentValue = _this.input.value;
        _this.cursorBefore = _this.input.value.substring(0, _this.cursorStart);
        _this.cursorAfter = _this.input.value.substring(_this.cursorEnd);
      } catch (e) {// Fix error in Chrome:
        // Failed to read the 'selectionStart' property from 'HTMLInputElement'
        // http://stackoverflow.com/q/21177489/3040605
      }
    };

    _this.restoreByAfter = function (str) {
      if (str === undefined) return false;
      var fullStr = _this.input.value;
      var index = fullStr.lastIndexOf(str);
      if (index === -1) return false;
      var prevCursorPos = _this.cursorBefore.length;

      if (_this.lastKeyCode === KeyCode["a" /* default */].DELETE && _this.cursorBefore.charAt(prevCursorPos - 1) === str[0]) {
        _this.fixCaret(prevCursorPos, prevCursorPos);

        return true;
      }

      if (index + str.length === fullStr.length) {
        _this.fixCaret(index, index);

        return true;
      }

      return false;
    };

    _this.partRestoreByAfter = function (str) {
      if (str === undefined) return false; // For loop from full str to the str with last char to map. e.g. 123
      // -> 123
      // -> 23
      // -> 3

      return Array.prototype.some.call(str, function (_, start) {
        var partStr = str.substring(start);
        return _this.restoreByAfter(partStr);
      });
    }; // '1.' '1x' 'xx' '' => are not complete numbers


    _this.isNotCompleteNumber = function (num) {
      return isNaN(num) || num === '' || num === null || num && num.toString().indexOf('.') === num.toString().length - 1;
    };

    _this.stop = function () {
      if (_this.autoStepTimer) {
        clearTimeout(_this.autoStepTimer);
      }
    };

    _this.down = function (e, ratio, recursive) {
      _this.pressingUpOrDown = true;

      _this.step('down', e, ratio, recursive);
    };

    _this.up = function (e, ratio, recursive) {
      _this.pressingUpOrDown = true;

      _this.step('up', e, ratio, recursive);
    };

    _this.saveInput = function (node) {
      _this.input = node;
    };

    var value = props.value;

    if (value === undefined) {
      value = props.defaultValue;
    }

    _this.state = {
      focused: props.autoFocus
    };

    var validValue = _this.getValidValue(_this.toNumber(value));

    _this.state = _objectSpread(_objectSpread({}, _this.state), {}, {
      inputValue: _this.toPrecisionAsStep(validValue),
      value: validValue
    });
    return _this;
  }

  Object(createClass["a" /* default */])(InputNumber, [{
    key: "componentDidMount",
    value: function componentDidMount() {
      this.componentDidUpdate(null);
    }
  }, {
    key: "componentDidUpdate",
    value: function componentDidUpdate(prevProps) {
      var _this$props3 = this.props,
          value = _this$props3.value,
          onChange = _this$props3.onChange,
          max = _this$props3.max,
          min = _this$props3.min;
      var focused = this.state.focused; // Don't trigger in componentDidMount

      if (prevProps) {
        if (!isEqual(prevProps.value, value) || !isEqual(prevProps.max, max) || !isEqual(prevProps.min, min)) {
          var validValue = focused ? value : this.getValidValue(value);
          var nextInputValue;

          if (this.pressingUpOrDown) {
            nextInputValue = validValue;
          } else if (this.inputting) {
            nextInputValue = this.rawInput;
          } else {
            nextInputValue = this.toPrecisionAsStep(validValue);
          }

          this.setState({
            // eslint-disable-line
            value: validValue,
            inputValue: nextInputValue
          });
        } // Trigger onChange when max or min change
        // https://github.com/ant-design/ant-design/issues/11574


        var nextValue = 'value' in this.props ? value : this.state.value; // ref: null < 20 === true
        // https://github.com/ant-design/ant-design/issues/14277

        if ('max' in this.props && prevProps.max !== max && typeof nextValue === 'number' && nextValue > max && onChange) {
          onChange(max);
        }

        if ('min' in this.props && prevProps.min !== min && typeof nextValue === 'number' && nextValue < min && onChange) {
          onChange(min);
        }
      } // Restore cursor


      try {
        // Firefox set the input cursor after it get focused.
        // This caused that if an input didn't init with the selection,
        // set will cause cursor not correct when first focus.
        // Safari will focus input if set selection. We need skip this.
        if (this.cursorStart !== undefined && this.state.focused) {
          // In most cases, the string after cursor is stable.
          // We can move the cursor before it
          if ( // If not match full str, try to match part of str
          !this.partRestoreByAfter(this.cursorAfter) && this.state.value !== this.props.value) {
            // If not match any of then, let's just keep the position
            // TODO: Logic should not reach here, need check if happens
            var pos = this.cursorStart + 1; // If not have last string, just position to the end

            if (!this.cursorAfter) {
              pos = this.input.value.length;
            } else if (this.lastKeyCode === KeyCode["a" /* default */].BACKSPACE) {
              pos = this.cursorStart - 1;
            } else if (this.lastKeyCode === KeyCode["a" /* default */].DELETE) {
              pos = this.cursorStart;
            }

            this.fixCaret(pos, pos);
          } else if (this.currentValue === this.input.value) {
            // Handle some special key code
            switch (this.lastKeyCode) {
              case KeyCode["a" /* default */].BACKSPACE:
                this.fixCaret(this.cursorStart - 1, this.cursorStart - 1);
                break;

              case KeyCode["a" /* default */].DELETE:
                this.fixCaret(this.cursorStart + 1, this.cursorStart + 1);
                break;

              default: // Do nothing

            }
          }
        }
      } catch (e) {// Do nothing
      } // Reset last key


      this.lastKeyCode = null; // pressingUpOrDown is true means that someone just click up or down button

      if (!this.pressingUpOrDown) {
        return;
      }

      if (this.props.focusOnUpDown && this.state.focused) {
        if (document.activeElement !== this.input) {
          this.focus();
        }
      }
    }
  }, {
    key: "componentWillUnmount",
    value: function componentWillUnmount() {
      this.stop();
    }
  }, {
    key: "getCurrentValidValue",
    value: function getCurrentValidValue(value) {
      var val = value;

      if (val === '') {
        val = '';
      } else if (!this.isNotCompleteNumber(parseFloat(val))) {
        val = this.getValidValue(val);
      } else {
        val = this.state.value;
      }

      return this.toNumber(val);
    }
  }, {
    key: "getValueFromEvent",
    value: function getValueFromEvent(e) {
      // optimize for chinese input expierence
      // https://github.com/ant-design/ant-design/issues/8196
      var value = e.target.value.trim().replace(/。/g, '.');

      if (isValidProps(this.props.decimalSeparator)) {
        value = value.replace(this.props.decimalSeparator, '.');
      }

      return value;
    }
  }, {
    key: "getValidValue",
    value: function getValidValue(value) {
      var min = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.props.min;
      var max = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : this.props.max;
      var val = parseFloat(value); // https://github.com/ant-design/ant-design/issues/7358

      if (isNaN(val)) {
        return value;
      }

      if (val < min) {
        val = min;
      }

      if (val > max) {
        val = max;
      }

      return val;
    }
  }, {
    key: "setValue",
    value: function setValue(v, callback) {
      // trigger onChange
      var precision = this.props.precision;
      var newValue = this.isNotCompleteNumber(parseFloat(v)) ? null : parseFloat(v);
      var _this$state$value = this.state.value,
          value = _this$state$value === void 0 ? null : _this$state$value;
      var _this$state$inputValu = this.state.inputValue,
          inputValue = _this$state$inputValu === void 0 ? null : _this$state$inputValu; // https://github.com/ant-design/ant-design/issues/7363
      // https://github.com/ant-design/ant-design/issues/16622

      var newValueInString = typeof newValue === 'number' ? newValue.toFixed(precision) : "".concat(newValue);
      var changed = newValue !== value || newValueInString !== "".concat(inputValue);

      if (!('value' in this.props)) {
        this.setState({
          value: newValue,
          inputValue: this.toPrecisionAsStep(v)
        }, callback);
      } else {
        // always set input value same as value
        inputValue = this.toPrecisionAsStep(this.state.value);
        this.setState({
          inputValue: inputValue
        }, callback);
      }

      if (changed) {
        this.props.onChange(newValue);
      }

      return newValue;
    } // step={1.0} value={1.51}
    // press +
    // then value should be 2.51, rather than 2.5
    // if this.props.precision is undefined
    // https://github.com/react-component/input-number/issues/39

  }, {
    key: "getMaxPrecision",
    value: function getMaxPrecision(currentValue) {
      var ratio = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1;
      var _this$props4 = this.props,
          precision = _this$props4.precision,
          step = _this$props4.step;

      if (isValidProps(precision)) {
        return precision;
      }

      var ratioPrecision = this.getPrecision(ratio);
      var stepPrecision = this.getPrecision(step);
      var currentValuePrecision = this.getPrecision(currentValue);

      if (!currentValue) {
        return ratioPrecision + stepPrecision;
      }

      return Math.max(currentValuePrecision, ratioPrecision + stepPrecision);
    }
  }, {
    key: "getPrecisionFactor",
    value: function getPrecisionFactor(currentValue) {
      var ratio = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1;
      var precision = this.getMaxPrecision(currentValue, ratio);
      return Math.pow(10, precision);
    }
  }, {
    key: "focus",
    value: function focus() {
      this.input.focus();
      this.recordCursorPosition();
    }
  }, {
    key: "blur",
    value: function blur() {
      this.input.blur();
    }
  }, {
    key: "select",
    value: function select() {
      this.input.select();
    }
  }, {
    key: "formatWrapper",
    value: function formatWrapper(num) {
      // http://2ality.com/2012/03/signedzero.html
      // https://github.com/ant-design/ant-design/issues/9439
      if (this.props.formatter) {
        return this.props.formatter(num);
      }

      return num;
    }
  }, {
    key: "toPrecisionAsStep",
    value: function toPrecisionAsStep(num) {
      if (this.isNotCompleteNumber(num) || num === '') {
        return num;
      }

      var precision = Math.abs(this.getMaxPrecision(num));

      if (!isNaN(precision)) {
        return Number(num).toFixed(precision);
      }

      return num.toString();
    }
  }, {
    key: "toNumber",
    value: function toNumber(num) {
      var precision = this.props.precision;
      var focused = this.state.focused; // num.length > 16 => This is to prevent input of large numbers

      var numberIsTooLarge = num && num.length > 16 && focused;

      if (this.isNotCompleteNumber(num) || numberIsTooLarge) {
        return num;
      }

      if (isValidProps(precision)) {
        return Math.round(num * Math.pow(10, precision)) / Math.pow(10, precision);
      }

      return Number(num);
    }
  }, {
    key: "upStep",
    value: function upStep(val, rat) {
      var step = this.props.step;
      var precisionFactor = this.getPrecisionFactor(val, rat);
      var precision = Math.abs(this.getMaxPrecision(val, rat));
      var result = ((precisionFactor * val + precisionFactor * step * rat) / precisionFactor).toFixed(precision);
      return this.toNumber(result);
    }
  }, {
    key: "downStep",
    value: function downStep(val, rat) {
      var step = this.props.step;
      var precisionFactor = this.getPrecisionFactor(val, rat);
      var precision = Math.abs(this.getMaxPrecision(val, rat));
      var result = ((precisionFactor * val - precisionFactor * step * rat) / precisionFactor).toFixed(precision);
      return this.toNumber(result);
    }
  }, {
    key: "step",
    value: function step(type, e) {
      var _this2 = this;

      var ratio = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 1;
      var recursive = arguments.length > 3 ? arguments[3] : undefined;
      this.stop();

      if (e) {
        e.persist();
        e.preventDefault();
      }

      var props = this.props;

      if (props.disabled) {
        return;
      }

      var value = this.getCurrentValidValue(this.state.inputValue) || 0;

      if (this.isNotCompleteNumber(value)) {
        return;
      }

      var val = this["".concat(type, "Step")](value, ratio);
      var outOfRange = val > props.max || val < props.min;

      if (val > props.max) {
        val = props.max;
      } else if (val < props.min) {
        val = props.min;
      }

      this.setValue(val, null);
      this.setState({
        focused: true
      }, function () {
        _this2.pressingUpOrDown = false;
      });

      if (outOfRange) {
        return;
      }

      this.autoStepTimer = setTimeout(function () {
        _this2[type](e, ratio, true);
      }, recursive ? SPEED : DELAY);
    }
  }, {
    key: "fixCaret",
    value: function fixCaret(start, end) {
      if (start === undefined || end === undefined || !this.input || !this.input.value) {
        return;
      }

      try {
        var currentStart = this.input.selectionStart;
        var currentEnd = this.input.selectionEnd;

        if (start !== currentStart || end !== currentEnd) {
          this.input.setSelectionRange(start, end);
        }
      } catch (e) {// Fix error in Chrome:
        // Failed to read the 'selectionStart' property from 'HTMLInputElement'
        // http://stackoverflow.com/q/21177489/3040605
      }
    }
  }, {
    key: "render",
    value: function render() {
      var _classNames;

      var _this$props5 = this.props,
          prefixCls = _this$props5.prefixCls,
          disabled = _this$props5.disabled,
          readOnly = _this$props5.readOnly,
          useTouch = _this$props5.useTouch,
          autoComplete = _this$props5.autoComplete,
          upHandler = _this$props5.upHandler,
          downHandler = _this$props5.downHandler,
          className = _this$props5.className,
          max = _this$props5.max,
          min = _this$props5.min,
          style = _this$props5.style,
          title = _this$props5.title,
          onMouseEnter = _this$props5.onMouseEnter,
          onMouseLeave = _this$props5.onMouseLeave,
          onMouseOver = _this$props5.onMouseOver,
          onMouseOut = _this$props5.onMouseOut,
          required = _this$props5.required,
          onClick = _this$props5.onClick,
          tabIndex = _this$props5.tabIndex,
          type = _this$props5.type,
          placeholder = _this$props5.placeholder,
          id = _this$props5.id,
          inputMode = _this$props5.inputMode,
          pattern = _this$props5.pattern,
          step = _this$props5.step,
          maxLength = _this$props5.maxLength,
          autoFocus = _this$props5.autoFocus,
          name = _this$props5.name,
          onPaste = _this$props5.onPaste,
          onInput = _this$props5.onInput,
          rest = Object(objectWithoutProperties["a" /* default */])(_this$props5, ["prefixCls", "disabled", "readOnly", "useTouch", "autoComplete", "upHandler", "downHandler", "className", "max", "min", "style", "title", "onMouseEnter", "onMouseLeave", "onMouseOver", "onMouseOut", "required", "onClick", "tabIndex", "type", "placeholder", "id", "inputMode", "pattern", "step", "maxLength", "autoFocus", "name", "onPaste", "onInput"]);

      var _this$state = this.state,
          value = _this$state.value,
          focused = _this$state.focused;
      var classes = classnames_default()(prefixCls, (_classNames = {}, Object(defineProperty["a" /* default */])(_classNames, className, !!className), Object(defineProperty["a" /* default */])(_classNames, "".concat(prefixCls, "-disabled"), disabled), Object(defineProperty["a" /* default */])(_classNames, "".concat(prefixCls, "-focused"), focused), _classNames));
      var dataOrAriaAttributeProps = {};
      Object.keys(rest).forEach(function (key) {
        if (key.substr(0, 5) === 'data-' || key.substr(0, 5) === 'aria-' || key === 'role') {
          dataOrAriaAttributeProps[key] = rest[key];
        }
      });
      var editable = !readOnly && !disabled; // focus state, show input value
      // unfocus state, show valid value

      var inputDisplayValue = this.getInputDisplayValue(null);
      var upDisabled = (value || value === 0) && (isNaN(value) || Number(value) >= max);
      var downDisabled = (value || value === 0) && (isNaN(value) || Number(value) <= min);
      var isUpDisabled = upDisabled || disabled || readOnly;
      var isDownDisabled = downDisabled || disabled || readOnly;
      var upClassName = classnames_default()("".concat(prefixCls, "-handler"), "".concat(prefixCls, "-handler-up"), Object(defineProperty["a" /* default */])({}, "".concat(prefixCls, "-handler-up-disabled"), isUpDisabled));
      var downClassName = classnames_default()("".concat(prefixCls, "-handler"), "".concat(prefixCls, "-handler-down"), Object(defineProperty["a" /* default */])({}, "".concat(prefixCls, "-handler-down-disabled"), isDownDisabled));
      var upEvents = useTouch ? {
        onTouchStart: isUpDisabled ? noop : this.up,
        onTouchEnd: this.stop
      } : {
        onMouseDown: isUpDisabled ? noop : this.up,
        onMouseUp: this.stop,
        onMouseLeave: this.stop
      };
      var downEvents = useTouch ? {
        onTouchStart: isDownDisabled ? noop : this.down,
        onTouchEnd: this.stop
      } : {
        onMouseDown: isDownDisabled ? noop : this.down,
        onMouseUp: this.stop,
        onMouseLeave: this.stop
      };
      return external_window_React_default.a.createElement("div", {
        className: classes,
        style: style,
        title: title,
        onMouseEnter: onMouseEnter,
        onMouseLeave: onMouseLeave,
        onMouseOver: onMouseOver,
        onMouseOut: onMouseOut,
        onFocus: function onFocus() {
          return null;
        },
        onBlur: function onBlur() {
          return null;
        }
      }, external_window_React_default.a.createElement("div", {
        className: "".concat(prefixCls, "-handler-wrap")
      }, external_window_React_default.a.createElement("span", Object.assign({
        unselectable: "on"
      }, upEvents, {
        role: "button",
        "aria-label": "Increase Value",
        "aria-disabled": isUpDisabled,
        className: upClassName
      }), upHandler || external_window_React_default.a.createElement("span", {
        unselectable: "on",
        className: "".concat(prefixCls, "-handler-up-inner"),
        onClick: preventDefault
      })), external_window_React_default.a.createElement("span", Object.assign({
        unselectable: "on"
      }, downEvents, {
        role: "button",
        "aria-label": "Decrease Value",
        "aria-disabled": isDownDisabled,
        className: downClassName
      }), downHandler || external_window_React_default.a.createElement("span", {
        unselectable: "on",
        className: "".concat(prefixCls, "-handler-down-inner"),
        onClick: preventDefault
      }))), external_window_React_default.a.createElement("div", {
        className: "".concat(prefixCls, "-input-wrap")
      }, external_window_React_default.a.createElement("input", Object.assign({
        role: "spinbutton",
        "aria-valuemin": min,
        "aria-valuemax": max,
        "aria-valuenow": value,
        required: required,
        type: type,
        placeholder: placeholder,
        onPaste: onPaste,
        onClick: onClick,
        onMouseUp: this.onMouseUp,
        className: "".concat(prefixCls, "-input"),
        tabIndex: tabIndex,
        autoComplete: autoComplete,
        onFocus: this.onFocus,
        onBlur: this.onBlur,
        onKeyDown: editable ? this.onKeyDown : noop,
        onKeyUp: editable ? this.onKeyUp : noop,
        autoFocus: autoFocus,
        maxLength: maxLength,
        readOnly: readOnly,
        disabled: disabled,
        max: max,
        min: min,
        step: step,
        name: name,
        title: title,
        id: id,
        onChange: this.onChange,
        ref: this.saveInput,
        value: this.getFullNum(inputDisplayValue),
        pattern: pattern,
        inputMode: inputMode,
        onInput: onInput
      }, dataOrAriaAttributeProps))));
    }
  }]);

  return InputNumber;
}(external_window_React_default.a.Component);

InputNumber_InputNumber.defaultProps = {
  focusOnUpDown: true,
  useTouch: false,
  prefixCls: 'rc-input-number',
  max: MAX_SAFE_INTEGER,
  min: -MAX_SAFE_INTEGER,
  step: 1,
  style: {},
  onChange: noop,
  onKeyDown: noop,
  onPressEnter: noop,
  onFocus: noop,
  onBlur: noop,
  parser: defaultParser,
  required: false,
  autoComplete: 'off'
};
/* harmony default export */ var es_InputNumber = (InputNumber_InputNumber);
// CONCATENATED MODULE: ./node_modules/rc-input-number/es/index.js

/* harmony default export */ var es = __webpack_exports__["a"] = (es_InputNumber);

/***/ }),

/***/ "fJjg":
/*!**********************************************************************!*\
  !*** ./src/pages/User/Detail/Topics/components/SendToClassModal.tsx ***!
  \**********************************************************************/
/*! exports provided: default */
/*! exports used: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony import */ var antd_es_modal_style__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! antd/es/modal/style */ "2qtc");
/* harmony import */ var antd_es_modal__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! antd/es/modal */ "kLXV");
/* harmony import */ var antd_es_radio_style__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! antd/es/radio/style */ "7Kak");
/* harmony import */ var antd_es_radio__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! antd/es/radio */ "9yH6");
/* harmony import */ var _Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_objectSpread2__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/objectSpread2 */ "k1fw");
/* harmony import */ var antd_es_message_style__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! antd/es/message/style */ "miYZ");
/* harmony import */ var antd_es_message__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! antd/es/message */ "tsqr");
/* harmony import */ var _Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_asyncToGenerator__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/asyncToGenerator */ "9og8");
/* harmony import */ var _Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_slicedToArray__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/slicedToArray */ "tJVT");
/* harmony import */ var _Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_objectWithoutProperties__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(/*! ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/objectWithoutProperties */ "PpiC");
/* harmony import */ var antd_es_input_style__WEBPACK_IMPORTED_MODULE_10__ = __webpack_require__(/*! antd/es/input/style */ "5NDa");
/* harmony import */ var antd_es_input__WEBPACK_IMPORTED_MODULE_11__ = __webpack_require__(/*! antd/es/input */ "5rEg");
/* harmony import */ var _Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_regenerator__WEBPACK_IMPORTED_MODULE_12__ = __webpack_require__(/*! ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/regenerator */ "WmNS");
/* harmony import */ var _Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_regenerator__WEBPACK_IMPORTED_MODULE_12___default = /*#__PURE__*/__webpack_require__.n(_Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_regenerator__WEBPACK_IMPORTED_MODULE_12__);
/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_13__ = __webpack_require__(/*! react */ "cDcd");
/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_13___default = /*#__PURE__*/__webpack_require__.n(react__WEBPACK_IMPORTED_MODULE_13__);
/* harmony import */ var umi__WEBPACK_IMPORTED_MODULE_14__ = __webpack_require__(/*! umi */ "9kvl");
/* harmony import */ var _SendToClassModal_less_modules__WEBPACK_IMPORTED_MODULE_15__ = __webpack_require__(/*! ./SendToClassModal.less?modules */ "Nska");
/* harmony import */ var _SendToClassModal_less_modules__WEBPACK_IMPORTED_MODULE_15___default = /*#__PURE__*/__webpack_require__.n(_SendToClassModal_less_modules__WEBPACK_IMPORTED_MODULE_15__);
/* harmony import */ var _utils_util__WEBPACK_IMPORTED_MODULE_16__ = __webpack_require__(/*! @/utils/util */ "1vsH");

















var Search = antd_es_input__WEBPACK_IMPORTED_MODULE_11__[/* default */ "a"].Search;

var SendToClassModal = function SendToClassModal(_ref) {
  var userDetail = _ref.userDetail,
      globalSetting = _ref.globalSetting,
      loading = _ref.loading,
      dispatch = _ref.dispatch,
      props = Object(_Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_objectWithoutProperties__WEBPACK_IMPORTED_MODULE_9__[/* default */ "a"])(_ref, ["userDetail", "globalSetting", "loading", "dispatch"]);

  var _useState = Object(react__WEBPACK_IMPORTED_MODULE_13__["useState"])(''),
      _useState2 = Object(_Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_slicedToArray__WEBPACK_IMPORTED_MODULE_8__[/* default */ "a"])(_useState, 2),
      searchValue = _useState2[0],
      setSearchValue = _useState2[1];

  var _useState3 = Object(react__WEBPACK_IMPORTED_MODULE_13__["useState"])([]),
      _useState4 = Object(_Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_slicedToArray__WEBPACK_IMPORTED_MODULE_8__[/* default */ "a"])(_useState3, 2),
      courseList = _useState4[0],
      setCourseList = _useState4[1];

  var _useState5 = Object(react__WEBPACK_IMPORTED_MODULE_13__["useState"])(),
      _useState6 = Object(_Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_slicedToArray__WEBPACK_IMPORTED_MODULE_8__[/* default */ "a"])(_useState5, 2),
      radioValue = _useState6[0],
      setRadioValue = _useState6[1];

  var _useState7 = Object(react__WEBPACK_IMPORTED_MODULE_13__["useState"])(false),
      _useState8 = Object(_Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_slicedToArray__WEBPACK_IMPORTED_MODULE_8__[/* default */ "a"])(_useState7, 2),
      hasError = _useState8[0],
      setHasError = _useState8[1];

  Object(react__WEBPACK_IMPORTED_MODULE_13__["useEffect"])(function () {
    getCourseList();
  }, []);

  var getCourseList = /*#__PURE__*/function () {
    var _ref2 = Object(_Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_asyncToGenerator__WEBPACK_IMPORTED_MODULE_7__[/* default */ "a"])( /*#__PURE__*/_Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_regenerator__WEBPACK_IMPORTED_MODULE_12___default.a.mark(function _callee() {
      var res;
      return _Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_regenerator__WEBPACK_IMPORTED_MODULE_12___default.a.wrap(function _callee$(_context) {
        while (1) {
          switch (_context.prev = _context.next) {
            case 0:
              _context.next = 2;
              return dispatch({
                type: 'userDetail/topicGetCourseList',
                payload: {
                  search: searchValue
                }
              });

            case 2:
              res = _context.sent;

              if (res) {
                setCourseList((res === null || res === void 0 ? void 0 : res.courses) || []);
              }

            case 4:
            case "end":
              return _context.stop();
          }
        }
      }, _callee);
    }));

    return function getCourseList() {
      return _ref2.apply(this, arguments);
    };
  }();

  var handleOk = /*#__PURE__*/function () {
    var _ref3 = Object(_Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_asyncToGenerator__WEBPACK_IMPORTED_MODULE_7__[/* default */ "a"])( /*#__PURE__*/_Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_regenerator__WEBPACK_IMPORTED_MODULE_12___default.a.mark(function _callee2() {
      var _userDetail$actionTab;

      var res, _userDetail$actionTab2, _userDetail$actionTab3, urlMapping;

      return _Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_regenerator__WEBPACK_IMPORTED_MODULE_12___default.a.wrap(function _callee2$(_context2) {
        while (1) {
          switch (_context2.prev = _context2.next) {
            case 0:
              if (radioValue) {
                _context2.next = 4;
                break;
              }

              antd_es_message__WEBPACK_IMPORTED_MODULE_6__[/* default */ "b"].info("\u60A8\u9700\u8981\u521B\u5EFA\u8BFE\u5802\uFF0C\u624D\u80FD\u53D1\u9001");

              setHasError(true);
              return _context2.abrupt("return");

            case 4:
              _context2.next = 6;
              return dispatch({
                type: 'userDetail/topicSendToClass',
                payload: Object(_Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_objectSpread2__WEBPACK_IMPORTED_MODULE_4__[/* default */ "a"])({
                  course_id: radioValue
                }, (_userDetail$actionTab = userDetail.actionTabs) === null || _userDetail$actionTab === void 0 ? void 0 : _userDetail$actionTab.params)
              });

            case 6:
              res = _context2.sent;
              dispatch({
                type: 'userDetail/setActionTabs',
                payload: {}
              });

              if (res && res.status === 0) {
                urlMapping = {
                  'normal': 'common_homework',
                  'group': 'group_homework',
                  'exercise': 'exercise',
                  'poll': 'poll'
                };
                Object(_utils_util__WEBPACK_IMPORTED_MODULE_16__[/* openNewWindow */ "Q"])("/classrooms/".concat(radioValue, "/").concat(urlMapping[(_userDetail$actionTab2 = userDetail.actionTabs) === null || _userDetail$actionTab2 === void 0 ? void 0 : (_userDetail$actionTab3 = _userDetail$actionTab2.params) === null || _userDetail$actionTab3 === void 0 ? void 0 : _userDetail$actionTab3.object_type]));
              }

            case 9:
            case "end":
              return _context2.stop();
          }
        }
      }, _callee2);
    }));

    return function handleOk() {
      return _ref3.apply(this, arguments);
    };
  }();

  return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_13___default.a.createElement(antd_es_modal__WEBPACK_IMPORTED_MODULE_1__[/* default */ "a"], {
    centered: true,
    keyboard: false,
    closable: false,
    destroyOnClose: true,
    visible: userDetail.actionTabs.key === 'UserDetail-SendToClass',
    title: "\u53D1\u9001\u81F3\u8BFE\u5802",
    okText: "\u786E\u5B9A",
    cancelText: "\u53D6\u6D88",
    confirmLoading: loading['userDetail/sendToClass'],
    width: 600,
    onOk: handleOk,
    onCancel: function onCancel() {
      dispatch({
        type: 'userDetail/setActionTabs',
        payload: {}
      });
    }
  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_13___default.a.createElement("div", {
    className: _SendToClassModal_less_modules__WEBPACK_IMPORTED_MODULE_15___default.a.wrap
  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_13___default.a.createElement("div", {
    className: _SendToClassModal_less_modules__WEBPACK_IMPORTED_MODULE_15___default.a.title
  }, "\u6E29\u99A8\u63D0\u793A\uFF1A\u9009\u62E9\u7684\u9898\u5C06\u4F1A\u53D1\u9001\u5230\u6307\u5B9A\u8BFE\u5802"), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_13___default.a.createElement("div", {
    className: "mb10"
  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_13___default.a.createElement(Search, {
    placeholder: "\u8F93\u5165\u8BFE\u5802\u540D\u79F0\u7684\u5173\u952E\u5B57\u8FDB\u884C\u641C\u7D22",
    value: searchValue,
    onChange: function onChange(e) {
      return setSearchValue(e.target.value);
    },
    onSearch: function onSearch(value) {
      setSearchValue(value);
      getCourseList();
    }
  })), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_13___default.a.createElement("div", {
    className: _SendToClassModal_less_modules__WEBPACK_IMPORTED_MODULE_15___default.a.radioWrap
  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_13___default.a.createElement(antd_es_radio__WEBPACK_IMPORTED_MODULE_3__[/* default */ "a"].Group, {
    value: radioValue,
    onChange: function onChange(e) {
      setRadioValue(e.target.value);
      setHasError(false);
    }
  }, courseList.map(function (item, key) {
    return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_13___default.a.createElement(antd_es_radio__WEBPACK_IMPORTED_MODULE_3__[/* default */ "a"], {
      className: _SendToClassModal_less_modules__WEBPACK_IMPORTED_MODULE_15___default.a.radio,
      value: item.course_id,
      key: item.course_id
    }, item.course_name);
  }))), hasError && /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_13___default.a.createElement("div", {
    className: _SendToClassModal_less_modules__WEBPACK_IMPORTED_MODULE_15___default.a.colorFF0000
  }, "\u8BF7\u5148\u9009\u62E9\u8BFE\u5802")));
};

/* harmony default export */ __webpack_exports__["a"] = (Object(umi__WEBPACK_IMPORTED_MODULE_14__[/* connect */ "a"])(function (_ref4) {
  var userDetail = _ref4.userDetail,
      loading = _ref4.loading,
      globalSetting = _ref4.globalSetting;
  return {
    userDetail: userDetail,
    globalSetting: globalSetting,
    loading: loading.effects
  };
})(SendToClassModal));

/***/ }),

/***/ "k3GJ":
/*!*******************************************************!*\
  !*** ./node_modules/rc-tabs/es/index.js + 50 modules ***!
  \*******************************************************/
/*! exports provided: TabPane, default */
/*! exports used: TabPane, default */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/assertThisInitialized.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/asyncToGenerator.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/classCallCheck.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/createClass.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/createSuper.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/defineProperty.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/extends.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/inherits.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/objectSpread2.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/objectWithoutProperties.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/slicedToArray.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/toConsumableArray.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/helpers/esm/typeof.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/@babel/runtime/regenerator/index.js (<- Module is not an ECMAScript module) */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/classnames/index.js (<- Module is not an ECMAScript module) */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/mini-store/esm/index.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/raf/index.js (<- Module is not an ECMAScript module) */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/rc-align/es/index.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/rc-dropdown/es/index.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/rc-resize-observer/es/index.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/rc-util/es/Children/toArray.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/rc-util/es/Dom/addEventListener.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/rc-util/es/Dom/canUseDom.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/rc-util/es/Dom/contains.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/rc-util/es/Dom/findDOMNode.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/rc-util/es/KeyCode.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/rc-util/es/Portal.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/rc-util/es/createChainedFunction.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/rc-util/es/hooks/useMergedState.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/rc-util/es/omit.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/rc-util/es/raf.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/rc-util/es/ref.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/rc-util/es/warning.js */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/resize-observer-polyfill/dist/ResizeObserver.es.js (<- Module uses injected variables (global)) */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/shallowequal/index.js (<- Module is not an ECMAScript module) */
/*! ModuleConcatenation bailout: Cannot concat with external "window.React" (<- Module is not an ECMAScript module) */
/*! ModuleConcatenation bailout: Cannot concat with external "window.ReactDOM" (<- Module is not an ECMAScript module) */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";

// EXPORTS
__webpack_require__.d(__webpack_exports__, "a", function() { return /* reexport */ TabPane; });

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/defineProperty.js
var defineProperty = __webpack_require__("rePB");

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/slicedToArray.js + 1 modules
var slicedToArray = __webpack_require__("ODXe");

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/objectWithoutProperties.js
var objectWithoutProperties = __webpack_require__("Ff2n");

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/objectSpread2.js
var objectSpread2 = __webpack_require__("VTBJ");

// EXTERNAL MODULE: external "window.React"
var external_window_React_ = __webpack_require__("cDcd");

// EXTERNAL MODULE: ./node_modules/classnames/index.js
var classnames = __webpack_require__("TSYQ");
var classnames_default = /*#__PURE__*/__webpack_require__.n(classnames);

// EXTERNAL MODULE: ./node_modules/rc-util/es/Children/toArray.js
var toArray = __webpack_require__("Zm9Q");

// EXTERNAL MODULE: ./node_modules/rc-util/es/hooks/useMergedState.js
var useMergedState = __webpack_require__("6cGi");

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/toConsumableArray.js + 2 modules
var toConsumableArray = __webpack_require__("KQm4");

// EXTERNAL MODULE: ./node_modules/raf/index.js
var raf = __webpack_require__("xEkU");
var raf_default = /*#__PURE__*/__webpack_require__.n(raf);

// EXTERNAL MODULE: ./node_modules/rc-resize-observer/es/index.js
var es = __webpack_require__("t23M");

// CONCATENATED MODULE: ./node_modules/rc-tabs/es/hooks/useRaf.js



function useRaf(callback) {
  var rafRef = Object(external_window_React_["useRef"])();
  var removedRef = Object(external_window_React_["useRef"])(false);

  function trigger() {
    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    if (!removedRef.current) {
      raf_default.a.cancel(rafRef.current);
      rafRef.current = raf_default()(function () {
        callback.apply(void 0, args);
      });
    }
  }

  Object(external_window_React_["useEffect"])(function () {
    return function () {
      removedRef.current = true;
      raf_default.a.cancel(rafRef.current);
    };
  }, []);
  return trigger;
}
function useRafState(defaultState) {
  var batchRef = Object(external_window_React_["useRef"])([]);

  var _useState = Object(external_window_React_["useState"])({}),
      _useState2 = Object(slicedToArray["a" /* default */])(_useState, 2),
      forceUpdate = _useState2[1];

  var state = Object(external_window_React_["useRef"])(typeof defaultState === 'function' ? defaultState() : defaultState);
  var flushUpdate = useRaf(function () {
    var current = state.current;
    batchRef.current.forEach(function (callback) {
      current = callback(current);
    });
    batchRef.current = [];
    state.current = current;
    forceUpdate({});
  });

  function updater(callback) {
    batchRef.current.push(callback);
    flushUpdate();
  }

  return [state.current, updater];
}
// EXTERNAL MODULE: ./node_modules/rc-util/es/KeyCode.js
var KeyCode = __webpack_require__("4IlW");

// CONCATENATED MODULE: ./node_modules/rc-tabs/es/TabNavList/TabNode.js





function TabNode(_ref, ref) {
  var _classNames;

  var prefixCls = _ref.prefixCls,
      id = _ref.id,
      active = _ref.active,
      rtl = _ref.rtl,
      _ref$tab = _ref.tab,
      key = _ref$tab.key,
      tab = _ref$tab.tab,
      disabled = _ref$tab.disabled,
      closeIcon = _ref$tab.closeIcon,
      tabBarGutter = _ref.tabBarGutter,
      tabPosition = _ref.tabPosition,
      closable = _ref.closable,
      renderWrapper = _ref.renderWrapper,
      removeAriaLabel = _ref.removeAriaLabel,
      editable = _ref.editable,
      onClick = _ref.onClick,
      onRemove = _ref.onRemove,
      onFocus = _ref.onFocus;
  var tabPrefix = "".concat(prefixCls, "-tab");
  external_window_React_["useEffect"](function () {
    return onRemove;
  }, []);
  var nodeStyle = {};

  if (tabPosition === 'top' || tabPosition === 'bottom') {
    nodeStyle[rtl ? 'marginLeft' : 'marginRight'] = tabBarGutter;
  } else {
    nodeStyle.marginBottom = tabBarGutter;
  }

  var removable = editable && closable !== false && !disabled;

  function onInternalClick(e) {
    if (disabled) return;
    onClick(e);
  }

  function onRemoveTab(event) {
    event.preventDefault();
    event.stopPropagation();
    editable.onEdit('remove', {
      key: key,
      event: event
    });
  }

  var node = external_window_React_["createElement"]("div", {
    key: key,
    ref: ref,
    className: classnames_default()(tabPrefix, (_classNames = {}, Object(defineProperty["a" /* default */])(_classNames, "".concat(tabPrefix, "-with-remove"), removable), Object(defineProperty["a" /* default */])(_classNames, "".concat(tabPrefix, "-active"), active), Object(defineProperty["a" /* default */])(_classNames, "".concat(tabPrefix, "-disabled"), disabled), _classNames)),
    style: nodeStyle,
    onClick: onInternalClick
  }, external_window_React_["createElement"]("div", {
    role: "tab",
    "aria-selected": active,
    id: id && "".concat(id, "-tab-").concat(key),
    className: "".concat(tabPrefix, "-btn"),
    "aria-controls": id && "".concat(id, "-panel-").concat(key),
    "aria-disabled": disabled,
    tabIndex: disabled ? null : 0,
    onClick: function onClick(e) {
      e.stopPropagation();
      onInternalClick(e);
    },
    onKeyDown: function onKeyDown(e) {
      if ([KeyCode["a" /* default */].SPACE, KeyCode["a" /* default */].ENTER].includes(e.which)) {
        e.preventDefault();
        onInternalClick(e);
      }
    },
    onFocus: onFocus
  }, tab), removable && external_window_React_["createElement"]("button", {
    type: "button",
    "aria-label": removeAriaLabel || 'remove',
    tabIndex: 0,
    className: "".concat(tabPrefix, "-remove"),
    onClick: function onClick(e) {
      e.stopPropagation();
      onRemoveTab(e);
    }
  }, closeIcon || editable.removeIcon || '×'));

  if (renderWrapper) {
    node = renderWrapper(node);
  }

  return node;
}

/* harmony default export */ var TabNavList_TabNode = (external_window_React_["forwardRef"](TabNode));
// CONCATENATED MODULE: ./node_modules/rc-tabs/es/hooks/useOffsets.js


var DEFAULT_SIZE = {
  width: 0,
  height: 0,
  left: 0,
  top: 0
};
function useOffsets(tabs, tabSizes, holderScrollWidth) {
  return Object(external_window_React_["useMemo"])(function () {
    var _tabs$;

    var map = new Map();
    var lastOffset = tabSizes.get((_tabs$ = tabs[0]) === null || _tabs$ === void 0 ? void 0 : _tabs$.key) || DEFAULT_SIZE;
    var rightOffset = lastOffset.left + lastOffset.width;

    for (var i = 0; i < tabs.length; i += 1) {
      var key = tabs[i].key;
      var data = tabSizes.get(key); // Reuse last one when not exist yet

      if (!data) {
        var _tabs;

        data = tabSizes.get((_tabs = tabs[i - 1]) === null || _tabs === void 0 ? void 0 : _tabs.key) || DEFAULT_SIZE;
      }

      var entity = map.get(key) || Object(objectSpread2["a" /* default */])({}, data); // Right


      entity.right = rightOffset - entity.left - entity.width; // Update entity

      map.set(key, entity);
    }

    return map;
  }, [tabs.map(function (tab) {
    return tab.key;
  }).join('_'), tabSizes, holderScrollWidth]);
}
// CONCATENATED MODULE: ./node_modules/rc-tabs/es/hooks/useVisibleRange.js

var useVisibleRange_DEFAULT_SIZE = {
  width: 0,
  height: 0,
  left: 0,
  top: 0,
  right: 0
};
function useVisibleRange(tabOffsets, containerSize, tabContentNodeSize, addNodeSize, _ref) {
  var tabs = _ref.tabs,
      tabPosition = _ref.tabPosition,
      rtl = _ref.rtl;
  var unit;
  var position;
  var transformSize;

  if (['top', 'bottom'].includes(tabPosition)) {
    unit = 'width';
    position = rtl ? 'right' : 'left';
    transformSize = Math.abs(containerSize.left);
  } else {
    unit = 'height';
    position = 'top';
    transformSize = -containerSize.top;
  }

  var basicSize = containerSize[unit];
  var tabContentSize = tabContentNodeSize[unit];
  var addSize = addNodeSize[unit];
  var mergedBasicSize = basicSize;

  if (tabContentSize + addSize > basicSize) {
    mergedBasicSize = basicSize - addSize;
  }

  return Object(external_window_React_["useMemo"])(function () {
    if (!tabs.length) {
      return [0, 0];
    }

    var len = tabs.length;
    var endIndex = len;

    for (var i = 0; i < len; i += 1) {
      var offset = tabOffsets.get(tabs[i].key) || useVisibleRange_DEFAULT_SIZE;

      if (offset[position] + offset[unit] > transformSize + mergedBasicSize) {
        endIndex = i - 1;
        break;
      }
    }

    var startIndex = 0;

    for (var _i = len - 1; _i >= 0; _i -= 1) {
      var _offset = tabOffsets.get(tabs[_i].key) || useVisibleRange_DEFAULT_SIZE;

      if (_offset[position] < transformSize) {
        startIndex = _i + 1;
        break;
      }
    }

    return [startIndex, endIndex];
  }, [tabOffsets, transformSize, mergedBasicSize, tabPosition, tabs.map(function (tab) {
    return tab.key;
  }).join('_'), rtl]);
}
// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/extends.js
var esm_extends = __webpack_require__("wx14");

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/classCallCheck.js
var classCallCheck = __webpack_require__("1OyB");

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/createClass.js
var createClass = __webpack_require__("vuIU");

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/assertThisInitialized.js
var assertThisInitialized = __webpack_require__("JX7q");

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/inherits.js
var inherits = __webpack_require__("Ji7U");

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/createSuper.js + 1 modules
var createSuper = __webpack_require__("LK+K");

// EXTERNAL MODULE: ./node_modules/mini-store/esm/index.js + 3 modules
var esm = __webpack_require__("I8Z2");

// EXTERNAL MODULE: ./node_modules/rc-util/es/omit.js
var omit = __webpack_require__("bT9E");

// EXTERNAL MODULE: ./node_modules/rc-util/es/createChainedFunction.js
var createChainedFunction = __webpack_require__("2GS6");

// EXTERNAL MODULE: ./node_modules/shallowequal/index.js
var shallowequal = __webpack_require__("Gytx");
var shallowequal_default = /*#__PURE__*/__webpack_require__.n(shallowequal);

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/typeof.js
var esm_typeof = __webpack_require__("U8pU");

// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-menu/es/utils/isMobile.js


// MIT License from https://github.com/kaimallea/isMobile
var applePhone = /iPhone/i;
var appleIpod = /iPod/i;
var appleTablet = /iPad/i;
var androidPhone = /\bAndroid(?:.+)Mobile\b/i; // Match 'Android' AND 'Mobile'

var androidTablet = /Android/i;
var amazonPhone = /\bAndroid(?:.+)SD4930UR\b/i;
var amazonTablet = /\bAndroid(?:.+)(?:KF[A-Z]{2,4})\b/i;
var windowsPhone = /Windows Phone/i;
var windowsTablet = /\bWindows(?:.+)ARM\b/i; // Match 'Windows' AND 'ARM'

var otherBlackberry = /BlackBerry/i;
var otherBlackberry10 = /BB10/i;
var otherOpera = /Opera Mini/i;
var otherChrome = /\b(CriOS|Chrome)(?:.+)Mobile/i;
var otherFirefox = /Mobile(?:.+)Firefox\b/i; // Match 'Mobile' AND 'Firefox'

function match(regex, userAgent) {
  return regex.test(userAgent);
}

function isMobile(userAgent) {
  var ua = userAgent || (typeof navigator !== 'undefined' ? navigator.userAgent : ''); // Facebook mobile app's integrated browser adds a bunch of strings that
  // match everything. Strip it out if it exists.

  var tmp = (ua || '').split('[FBAN');

  if (typeof tmp[1] !== 'undefined') {
    var _tmp = tmp;

    var _tmp2 = Object(slicedToArray["a" /* default */])(_tmp, 1);

    ua = _tmp2[0];
  } // Twitter mobile app's integrated browser on iPad adds a "Twitter for
  // iPhone" string. Same probably happens on other tablet platforms.
  // This will confuse detection so strip it out if it exists.


  tmp = ua.split('Twitter');

  if (typeof tmp[1] !== 'undefined') {
    var _tmp3 = tmp;

    var _tmp4 = Object(slicedToArray["a" /* default */])(_tmp3, 1);

    ua = _tmp4[0];
  }

  var result = {
    apple: {
      phone: match(applePhone, ua) && !match(windowsPhone, ua),
      ipod: match(appleIpod, ua),
      tablet: !match(applePhone, ua) && match(appleTablet, ua) && !match(windowsPhone, ua),
      device: (match(applePhone, ua) || match(appleIpod, ua) || match(appleTablet, ua)) && !match(windowsPhone, ua)
    },
    amazon: {
      phone: match(amazonPhone, ua),
      tablet: !match(amazonPhone, ua) && match(amazonTablet, ua),
      device: match(amazonPhone, ua) || match(amazonTablet, ua)
    },
    android: {
      phone: !match(windowsPhone, ua) && match(amazonPhone, ua) || !match(windowsPhone, ua) && match(androidPhone, ua),
      tablet: !match(windowsPhone, ua) && !match(amazonPhone, ua) && !match(androidPhone, ua) && (match(amazonTablet, ua) || match(androidTablet, ua)),
      device: !match(windowsPhone, ua) && (match(amazonPhone, ua) || match(amazonTablet, ua) || match(androidPhone, ua) || match(androidTablet, ua)) || match(/\bokhttp\b/i, ua)
    },
    windows: {
      phone: match(windowsPhone, ua),
      tablet: match(windowsTablet, ua),
      device: match(windowsPhone, ua) || match(windowsTablet, ua)
    },
    other: {
      blackberry: match(otherBlackberry, ua),
      blackberry10: match(otherBlackberry10, ua),
      opera: match(otherOpera, ua),
      firefox: match(otherFirefox, ua),
      chrome: match(otherChrome, ua),
      device: match(otherBlackberry, ua) || match(otherBlackberry10, ua) || match(otherOpera, ua) || match(otherFirefox, ua) || match(otherChrome, ua)
    },
    // Additional
    any: null,
    phone: null,
    tablet: null
  };
  result.any = result.apple.device || result.android.device || result.windows.device || result.other.device; // excludes 'other' devices and ipods, targeting touchscreen phones

  result.phone = result.apple.phone || result.android.phone || result.windows.phone;
  result.tablet = result.apple.tablet || result.android.tablet || result.windows.tablet;
  return result;
}

var defaultResult = Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, isMobile()), {}, {
  isMobile: isMobile
});

/* harmony default export */ var utils_isMobile = (defaultResult);
// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-menu/es/util.js



function noop() {}
function getKeyFromChildrenIndex(child, menuEventKey, index) {
  var prefix = menuEventKey || '';
  return child.key || "".concat(prefix, "item_").concat(index);
}
function getMenuIdFromSubMenuEventKey(eventKey) {
  return "".concat(eventKey, "-menu-");
}
function loopMenuItem(children, cb) {
  var index = -1;
  external_window_React_["Children"].forEach(children, function (c) {
    index += 1;

    if (c && c.type && c.type.isMenuItemGroup) {
      external_window_React_["Children"].forEach(c.props.children, function (c2) {
        index += 1;
        cb(c2, index);
      });
    } else {
      cb(c, index);
    }
  });
}
function loopMenuItemRecursively(children, keys, ret) {
  /* istanbul ignore if */
  if (!children || ret.find) {
    return;
  }

  external_window_React_["Children"].forEach(children, function (c) {
    if (c) {
      var construct = c.type;

      if (!construct || !(construct.isSubMenu || construct.isMenuItem || construct.isMenuItemGroup)) {
        return;
      }

      if (keys.indexOf(c.key) !== -1) {
        // eslint-disable-next-line no-param-reassign
        ret.find = true;
      } else if (c.props.children) {
        loopMenuItemRecursively(c.props.children, keys, ret);
      }
    }
  });
}
var menuAllProps = ['defaultSelectedKeys', 'selectedKeys', 'defaultOpenKeys', 'openKeys', 'mode', 'getPopupContainer', 'onSelect', 'onDeselect', 'onDestroy', 'openTransitionName', 'openAnimation', 'subMenuOpenDelay', 'subMenuCloseDelay', 'forceSubMenuRender', 'triggerSubMenuAction', 'level', 'selectable', 'multiple', 'onOpenChange', 'visible', 'focusable', 'defaultActiveFirst', 'prefixCls', 'inlineIndent', 'parentMenu', 'title', 'rootPrefixCls', 'eventKey', 'active', 'onItemHover', 'onTitleMouseEnter', 'onTitleMouseLeave', 'onTitleClick', 'popupAlign', 'popupOffset', 'isOpen', 'renderMenuItem', 'manualRef', 'subMenuKey', 'disabled', 'index', 'isSelected', 'store', 'activeKey', 'builtinPlacements', 'overflowedIndicator', 'motion', // the following keys found need to be removed from test regression
'attribute', 'value', 'popupClassName', 'inlineCollapsed', 'menu', 'theme', 'itemIcon', 'expandIcon']; // ref: https://github.com/ant-design/ant-design/issues/14007
// ref: https://bugs.chromium.org/p/chromium/issues/detail?id=360889
// getBoundingClientRect return the full precision value, which is
// not the same behavior as on chrome. Set the precision to 6 to
// unify their behavior

var getWidth = function getWidth(elem) {
  var includeMargin = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
  var width = elem && typeof elem.getBoundingClientRect === 'function' && elem.getBoundingClientRect().width;

  if (width) {
    if (includeMargin) {
      var _getComputedStyle = getComputedStyle(elem),
          marginLeft = _getComputedStyle.marginLeft,
          marginRight = _getComputedStyle.marginRight;

      width += +marginLeft.replace('px', '') + +marginRight.replace('px', '');
    }

    width = +width.toFixed(6);
  }

  return width || 0;
};
var util_setStyle = function setStyle(elem, styleProperty, value) {
  if (elem && Object(esm_typeof["a" /* default */])(elem.style) === 'object') {
    // eslint-disable-next-line no-param-reassign
    elem.style[styleProperty] = value;
  }
};
var util_isMobileDevice = function isMobileDevice() {
  return utils_isMobile.any;
};
// EXTERNAL MODULE: ./node_modules/resize-observer-polyfill/dist/ResizeObserver.es.js
var ResizeObserver_es = __webpack_require__("bdgK");

// EXTERNAL MODULE: external "window.ReactDOM"
var external_window_ReactDOM_ = __webpack_require__("faye");
var external_window_ReactDOM_default = /*#__PURE__*/__webpack_require__.n(external_window_ReactDOM_);

// EXTERNAL MODULE: ./node_modules/rc-util/es/raf.js
var es_raf = __webpack_require__("wgJM");

// EXTERNAL MODULE: ./node_modules/rc-util/es/Dom/contains.js
var contains = __webpack_require__("l4aY");

// EXTERNAL MODULE: ./node_modules/rc-util/es/Dom/findDOMNode.js
var findDOMNode = __webpack_require__("m+aA");

// EXTERNAL MODULE: ./node_modules/rc-util/es/ref.js
var es_ref = __webpack_require__("c+Xe");

// EXTERNAL MODULE: ./node_modules/rc-util/es/Dom/addEventListener.js
var addEventListener = __webpack_require__("zT1h");

// EXTERNAL MODULE: ./node_modules/rc-util/es/Portal.js
var Portal = __webpack_require__("QC+M");

// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-trigger/es/utils/alignUtil.js


function isPointsEq(a1, a2, isAlignPoint) {
  if (isAlignPoint) {
    return a1[0] === a2[0];
  }

  return a1[0] === a2[0] && a1[1] === a2[1];
}

function getAlignFromPlacement(builtinPlacements, placementStr, align) {
  var baseAlign = builtinPlacements[placementStr] || {};
  return Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, baseAlign), align);
}
function getAlignPopupClassName(builtinPlacements, prefixCls, align, isAlignPoint) {
  var points = align.points;
  var placements = Object.keys(builtinPlacements);

  for (var i = 0; i < placements.length; i += 1) {
    var placement = placements[i];

    if (isPointsEq(builtinPlacements[placement].points, points, isAlignPoint)) {
      return "".concat(prefixCls, "-placement-").concat(placement);
    }
  }

  return '';
}
// CONCATENATED MODULE: ./node_modules/rc-util/es/isMobile.js
/* harmony default export */ var es_isMobile = (function () {
  if (typeof navigator === 'undefined' || typeof window === 'undefined') {
    return false;
  }

  var agent = navigator.userAgent || navigator.vendor || window.opera;

  if (/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino|android|ipad|playbook|silk/i.test(agent) || /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw-(n|u)|c55\/|capi|ccwa|cdm-|cell|chtm|cldc|cmd-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc-s|devi|dica|dmob|do(c|p)o|ds(12|-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(-|_)|g1 u|g560|gene|gf-5|g-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd-(m|p|t)|hei-|hi(pt|ta)|hp( i|ip)|hs-c|ht(c(-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i-(20|go|ma)|i230|iac( |-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|-[a-w])|libw|lynx|m1-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|-([1-8]|c))|phil|pire|pl(ay|uc)|pn-2|po(ck|rt|se)|prox|psio|pt-g|qa-a|qc(07|12|21|32|60|-[2-7]|i-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h-|oo|p-)|sdk\/|se(c(-|0|1)|47|mc|nd|ri)|sgh-|shar|sie(-|m)|sk-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h-|v-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl-|tdg-|tel(i|m)|tim-|t-mo|to(pl|sh)|ts(70|m-|m3|m5)|tx-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas-|your|zeto|zte-/i.test(agent === null || agent === void 0 ? void 0 : agent.substr(0, 4))) {
    return true;
  }

  return false;
});
// EXTERNAL MODULE: ./node_modules/rc-util/es/Dom/canUseDom.js
var canUseDom = __webpack_require__("MNnm");

// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-motion/es/util/motion.js

 // ================= Transition =================
// Event wrapper. Copy from react source code

function makePrefixMap(styleProp, eventName) {
  var prefixes = {};
  prefixes[styleProp.toLowerCase()] = eventName.toLowerCase();
  prefixes["Webkit".concat(styleProp)] = "webkit".concat(eventName);
  prefixes["Moz".concat(styleProp)] = "moz".concat(eventName);
  prefixes["ms".concat(styleProp)] = "MS".concat(eventName);
  prefixes["O".concat(styleProp)] = "o".concat(eventName.toLowerCase());
  return prefixes;
}

function getVendorPrefixes(domSupport, win) {
  var prefixes = {
    animationend: makePrefixMap('Animation', 'AnimationEnd'),
    transitionend: makePrefixMap('Transition', 'TransitionEnd')
  };

  if (domSupport) {
    if (!('AnimationEvent' in win)) {
      delete prefixes.animationend.animation;
    }

    if (!('TransitionEvent' in win)) {
      delete prefixes.transitionend.transition;
    }
  }

  return prefixes;
}
var vendorPrefixes = getVendorPrefixes(Object(canUseDom["a" /* default */])(), typeof window !== 'undefined' ? window : {});
var motion_style = {};

if (Object(canUseDom["a" /* default */])()) {
  var _document$createEleme = document.createElement('div');

  motion_style = _document$createEleme.style;
}

var prefixedEventNames = {};
function getVendorPrefixedEventName(eventName) {
  if (prefixedEventNames[eventName]) {
    return prefixedEventNames[eventName];
  }

  var prefixMap = vendorPrefixes[eventName];

  if (prefixMap) {
    var stylePropList = Object.keys(prefixMap);
    var len = stylePropList.length;

    for (var i = 0; i < len; i += 1) {
      var styleProp = stylePropList[i];

      if (Object.prototype.hasOwnProperty.call(prefixMap, styleProp) && styleProp in motion_style) {
        prefixedEventNames[eventName] = prefixMap[styleProp];
        return prefixedEventNames[eventName];
      }
    }
  }

  return '';
}
var internalAnimationEndName = getVendorPrefixedEventName('animationend');
var internalTransitionEndName = getVendorPrefixedEventName('transitionend');
var supportTransition = !!(internalAnimationEndName && internalTransitionEndName);
var animationEndName = internalAnimationEndName || 'animationend';
var transitionEndName = internalTransitionEndName || 'transitionend';
function getTransitionName(transitionName, transitionType) {
  if (!transitionName) return null;

  if (Object(esm_typeof["a" /* default */])(transitionName) === 'object') {
    var type = transitionType.replace(/-\w/g, function (match) {
      return match[1].toUpperCase();
    });
    return transitionName[type];
  }

  return "".concat(transitionName, "-").concat(transitionType);
}
// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-motion/es/interface.js
var STATUS_NONE = 'none';
var STATUS_APPEAR = 'appear';
var STATUS_ENTER = 'enter';
var STATUS_LEAVE = 'leave';
var STEP_NONE = 'none';
var STEP_PREPARE = 'prepare';
var STEP_START = 'start';
var STEP_ACTIVE = 'active';
var STEP_ACTIVATED = 'end';
// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-motion/es/hooks/useState.js


function useMountStatus(defaultValue) {
  var destroyRef = Object(external_window_React_["useRef"])(false);

  var _useState = Object(external_window_React_["useState"])(defaultValue),
      _useState2 = Object(slicedToArray["a" /* default */])(_useState, 2),
      val = _useState2[0],
      setVal = _useState2[1];

  function setValue(next) {
    if (!destroyRef.current) {
      setVal(next);
    }
  }

  Object(external_window_React_["useEffect"])(function () {
    return function () {
      destroyRef.current = true;
    };
  }, []);
  return [val, setValue];
}
// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-motion/es/hooks/useIsomorphicLayoutEffect.js

 // It's safe to use `useLayoutEffect` but the warning is annoying

var useIsomorphicLayoutEffect = Object(canUseDom["a" /* default */])() ? external_window_React_["useLayoutEffect"] : external_window_React_["useEffect"];
/* harmony default export */ var hooks_useIsomorphicLayoutEffect = (useIsomorphicLayoutEffect);
// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-motion/es/hooks/useNextFrame.js


/* harmony default export */ var useNextFrame = (function () {
  var nextFrameRef = external_window_React_["useRef"](null);

  function cancelNextFrame() {
    es_raf["a" /* default */].cancel(nextFrameRef.current);
  }

  function nextFrame(callback) {
    var delay = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 2;
    cancelNextFrame();
    var nextFrameId = Object(es_raf["a" /* default */])(function () {
      if (delay <= 1) {
        callback({
          isCanceled: function isCanceled() {
            return nextFrameId !== nextFrameRef.current;
          }
        });
      } else {
        nextFrame(callback, delay - 1);
      }
    });
    nextFrameRef.current = nextFrameId;
  }

  external_window_React_["useEffect"](function () {
    return function () {
      cancelNextFrame();
    };
  }, []);
  return [nextFrame, cancelNextFrame];
});
// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-motion/es/hooks/useStepQueue.js





var STEP_QUEUE = [STEP_PREPARE, STEP_START, STEP_ACTIVE, STEP_ACTIVATED];
/** Skip current step */

var SkipStep = false;
/** Current step should be update in */

var DoStep = true;
function useStepQueue_isActive(step) {
  return step === STEP_ACTIVE || step === STEP_ACTIVATED;
}
/* harmony default export */ var useStepQueue = (function (status, callback) {
  var _React$useState = external_window_React_["useState"](STEP_NONE),
      _React$useState2 = Object(slicedToArray["a" /* default */])(_React$useState, 2),
      step = _React$useState2[0],
      setStep = _React$useState2[1];

  var _useNextFrame = useNextFrame(),
      _useNextFrame2 = Object(slicedToArray["a" /* default */])(_useNextFrame, 2),
      nextFrame = _useNextFrame2[0],
      cancelNextFrame = _useNextFrame2[1];

  function startQueue() {
    setStep(STEP_PREPARE);
  }

  hooks_useIsomorphicLayoutEffect(function () {
    if (step !== STEP_NONE && step !== STEP_ACTIVATED) {
      var index = STEP_QUEUE.indexOf(step);
      var nextStep = STEP_QUEUE[index + 1];
      var result = callback(step);

      if (result === SkipStep) {
        // Skip when no needed
        setStep(nextStep);
      } else {
        // Do as frame for step update
        nextFrame(function (info) {
          function doNext() {
            // Skip since current queue is ood
            if (info.isCanceled()) return;
            setStep(nextStep);
          }

          if (result === true) {
            doNext();
          } else {
            // Only promise should be async
            Promise.resolve(result).then(doNext);
          }
        });
      }
    }
  }, [status, step]);
  external_window_React_["useEffect"](function () {
    return function () {
      cancelNextFrame();
    };
  }, []);
  return [startQueue, step];
});
// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-motion/es/hooks/useDomMotionEvents.js



/* harmony default export */ var useDomMotionEvents = (function (callback) {
  var cacheElementRef = Object(external_window_React_["useRef"])(); // Cache callback

  var callbackRef = Object(external_window_React_["useRef"])(callback);
  callbackRef.current = callback; // Internal motion event handler

  var onInternalMotionEnd = external_window_React_["useCallback"](function (event) {
    callbackRef.current(event);
  }, []); // Remove events

  function removeMotionEvents(element) {
    if (element) {
      element.removeEventListener(transitionEndName, onInternalMotionEnd);
      element.removeEventListener(animationEndName, onInternalMotionEnd);
    }
  } // Patch events


  function patchMotionEvents(element) {
    if (cacheElementRef.current && cacheElementRef.current !== element) {
      removeMotionEvents(cacheElementRef.current);
    }

    if (element && element !== cacheElementRef.current) {
      element.addEventListener(transitionEndName, onInternalMotionEnd);
      element.addEventListener(animationEndName, onInternalMotionEnd); // Save as cache in case dom removed trigger by `motionDeadline`

      cacheElementRef.current = element;
    }
  } // Clean up when removed


  external_window_React_["useEffect"](function () {
    return function () {
      removeMotionEvents(cacheElementRef.current);
    };
  }, []);
  return [patchMotionEvents, removeMotionEvents];
});
// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-motion/es/hooks/useStatus.js










function useStatus(supportMotion, visible, getElement, _ref) {
  var _ref$motionEnter = _ref.motionEnter,
      motionEnter = _ref$motionEnter === void 0 ? true : _ref$motionEnter,
      _ref$motionAppear = _ref.motionAppear,
      motionAppear = _ref$motionAppear === void 0 ? true : _ref$motionAppear,
      _ref$motionLeave = _ref.motionLeave,
      motionLeave = _ref$motionLeave === void 0 ? true : _ref$motionLeave,
      motionDeadline = _ref.motionDeadline,
      motionLeaveImmediately = _ref.motionLeaveImmediately,
      onAppearPrepare = _ref.onAppearPrepare,
      onEnterPrepare = _ref.onEnterPrepare,
      onLeavePrepare = _ref.onLeavePrepare,
      onAppearStart = _ref.onAppearStart,
      onEnterStart = _ref.onEnterStart,
      onLeaveStart = _ref.onLeaveStart,
      onAppearActive = _ref.onAppearActive,
      onEnterActive = _ref.onEnterActive,
      onLeaveActive = _ref.onLeaveActive,
      onAppearEnd = _ref.onAppearEnd,
      onEnterEnd = _ref.onEnterEnd,
      onLeaveEnd = _ref.onLeaveEnd,
      onVisibleChanged = _ref.onVisibleChanged;

  // Used for outer render usage to avoid `visible: false & status: none` to render nothing
  var _useState = useMountStatus(),
      _useState2 = Object(slicedToArray["a" /* default */])(_useState, 2),
      asyncVisible = _useState2[0],
      setAsyncVisible = _useState2[1];

  var _useState3 = useMountStatus(STATUS_NONE),
      _useState4 = Object(slicedToArray["a" /* default */])(_useState3, 2),
      status = _useState4[0],
      setStatus = _useState4[1];

  var _useState5 = useMountStatus(null),
      _useState6 = Object(slicedToArray["a" /* default */])(_useState5, 2),
      style = _useState6[0],
      setStyle = _useState6[1];

  var mountedRef = Object(external_window_React_["useRef"])(false);
  var deadlineRef = Object(external_window_React_["useRef"])(null);
  var destroyedRef = Object(external_window_React_["useRef"])(false); // =========================== Dom Node ===========================

  var cacheElementRef = Object(external_window_React_["useRef"])(null);

  function getDomElement() {
    var element = getElement();
    return element || cacheElementRef.current;
  } // ========================== Motion End ==========================


  var activeRef = Object(external_window_React_["useRef"])(false);

  function onInternalMotionEnd(event) {
    var element = getDomElement();

    if (event && !event.deadline && event.target !== element) {
      // event exists
      // not initiated by deadline
      // transitionEnd not fired by inner elements
      return;
    }

    var canEnd;

    if (status === STATUS_APPEAR && activeRef.current) {
      canEnd = onAppearEnd === null || onAppearEnd === void 0 ? void 0 : onAppearEnd(element, event);
    } else if (status === STATUS_ENTER && activeRef.current) {
      canEnd = onEnterEnd === null || onEnterEnd === void 0 ? void 0 : onEnterEnd(element, event);
    } else if (status === STATUS_LEAVE && activeRef.current) {
      canEnd = onLeaveEnd === null || onLeaveEnd === void 0 ? void 0 : onLeaveEnd(element, event);
    } // Only update status when `canEnd` and not destroyed


    if (canEnd !== false && !destroyedRef.current) {
      setStatus(STATUS_NONE);
      setStyle(null);
    }
  }

  var _useDomMotionEvents = useDomMotionEvents(onInternalMotionEnd),
      _useDomMotionEvents2 = Object(slicedToArray["a" /* default */])(_useDomMotionEvents, 1),
      patchMotionEvents = _useDomMotionEvents2[0]; // ============================= Step =============================


  var eventHandlers = external_window_React_["useMemo"](function () {
    var _ref2, _ref3, _ref4;

    switch (status) {
      case 'appear':
        return _ref2 = {}, Object(defineProperty["a" /* default */])(_ref2, STEP_PREPARE, onAppearPrepare), Object(defineProperty["a" /* default */])(_ref2, STEP_START, onAppearStart), Object(defineProperty["a" /* default */])(_ref2, STEP_ACTIVE, onAppearActive), _ref2;

      case 'enter':
        return _ref3 = {}, Object(defineProperty["a" /* default */])(_ref3, STEP_PREPARE, onEnterPrepare), Object(defineProperty["a" /* default */])(_ref3, STEP_START, onEnterStart), Object(defineProperty["a" /* default */])(_ref3, STEP_ACTIVE, onEnterActive), _ref3;

      case 'leave':
        return _ref4 = {}, Object(defineProperty["a" /* default */])(_ref4, STEP_PREPARE, onLeavePrepare), Object(defineProperty["a" /* default */])(_ref4, STEP_START, onLeaveStart), Object(defineProperty["a" /* default */])(_ref4, STEP_ACTIVE, onLeaveActive), _ref4;

      default:
        return {};
    }
  }, [status]);

  var _useStepQueue = useStepQueue(status, function (newStep) {
    // Only prepare step can be skip
    if (newStep === STEP_PREPARE) {
      var onPrepare = eventHandlers[STEP_PREPARE];

      if (!onPrepare) {
        return SkipStep;
      }

      return onPrepare(getDomElement());
    } // Rest step is sync update


    // Rest step is sync update
    if (step in eventHandlers) {
      var _eventHandlers$step;

      setStyle(((_eventHandlers$step = eventHandlers[step]) === null || _eventHandlers$step === void 0 ? void 0 : _eventHandlers$step.call(eventHandlers, getDomElement(), null)) || null);
    }

    if (step === STEP_ACTIVE) {
      // Patch events when motion needed
      patchMotionEvents(getDomElement());

      if (motionDeadline > 0) {
        clearTimeout(deadlineRef.current);
        deadlineRef.current = setTimeout(function () {
          onInternalMotionEnd({
            deadline: true
          });
        }, motionDeadline);
      }
    }

    return DoStep;
  }),
      _useStepQueue2 = Object(slicedToArray["a" /* default */])(_useStepQueue, 2),
      startStep = _useStepQueue2[0],
      step = _useStepQueue2[1];

  var active = useStepQueue_isActive(step);
  activeRef.current = active; // ============================ Status ============================
  // Update with new status

  hooks_useIsomorphicLayoutEffect(function () {
    setAsyncVisible(visible);
    var isMounted = mountedRef.current;
    mountedRef.current = true;

    if (!supportMotion) {
      return;
    }

    var nextStatus; // Appear

    if (!isMounted && visible && motionAppear) {
      nextStatus = STATUS_APPEAR;
    } // Enter


    if (isMounted && visible && motionEnter) {
      nextStatus = STATUS_ENTER;
    } // Leave


    if (isMounted && !visible && motionLeave || !isMounted && motionLeaveImmediately && !visible && motionLeave) {
      nextStatus = STATUS_LEAVE;
    } // Update to next status


    if (nextStatus) {
      setStatus(nextStatus);
      startStep();
    }
  }, [visible]); // ============================ Effect ============================
  // Reset when motion changed

  Object(external_window_React_["useEffect"])(function () {
    if ( // Cancel appear
    status === STATUS_APPEAR && !motionAppear || // Cancel enter
    status === STATUS_ENTER && !motionEnter || // Cancel leave
    status === STATUS_LEAVE && !motionLeave) {
      setStatus(STATUS_NONE);
    }
  }, [motionAppear, motionEnter, motionLeave]);
  Object(external_window_React_["useEffect"])(function () {
    return function () {
      clearTimeout(deadlineRef.current);
      destroyedRef.current = true;
    };
  }, []); // Trigger `onVisibleChanged`

  Object(external_window_React_["useEffect"])(function () {
    if (asyncVisible !== undefined && status === STATUS_NONE) {
      onVisibleChanged === null || onVisibleChanged === void 0 ? void 0 : onVisibleChanged(asyncVisible);
    }
  }, [asyncVisible, status]); // ============================ Styles ============================

  var mergedStyle = style;

  if (eventHandlers[STEP_PREPARE] && step === STEP_START) {
    mergedStyle = Object(objectSpread2["a" /* default */])({
      transition: 'none'
    }, mergedStyle);
  }

  return [status, step, mergedStyle, asyncVisible !== null && asyncVisible !== void 0 ? asyncVisible : visible];
}
// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-motion/es/DomWrapper.js






var DomWrapper_DomWrapper = /*#__PURE__*/function (_React$Component) {
  Object(inherits["a" /* default */])(DomWrapper, _React$Component);

  var _super = Object(createSuper["a" /* default */])(DomWrapper);

  function DomWrapper() {
    Object(classCallCheck["a" /* default */])(this, DomWrapper);

    return _super.apply(this, arguments);
  }

  Object(createClass["a" /* default */])(DomWrapper, [{
    key: "render",
    value: function render() {
      return this.props.children;
    }
  }]);

  return DomWrapper;
}(external_window_React_["Component"]);

/* harmony default export */ var es_DomWrapper = (DomWrapper_DomWrapper);
// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-motion/es/CSSMotion.js





/* eslint-disable react/default-props-match-prop-types, react/no-multi-comp, react/prop-types */










/**
 * `transitionSupport` is used for none transition test case.
 * Default we use browser transition event support check.
 */

function genCSSMotion(config) {
  var transitionSupport = config;

  if (Object(esm_typeof["a" /* default */])(config) === 'object') {
    transitionSupport = config.transitionSupport;
  }

  function isSupportTransition(props) {
    return !!(props.motionName && transitionSupport);
  }

  var CSSMotion = /*#__PURE__*/external_window_React_["forwardRef"](function (props, ref) {
    var _props$visible = props.visible,
        visible = _props$visible === void 0 ? true : _props$visible,
        _props$removeOnLeave = props.removeOnLeave,
        removeOnLeave = _props$removeOnLeave === void 0 ? true : _props$removeOnLeave,
        forceRender = props.forceRender,
        children = props.children,
        motionName = props.motionName,
        leavedClassName = props.leavedClassName,
        eventProps = props.eventProps;
    var supportMotion = isSupportTransition(props); // Ref to the react node, it may be a HTMLElement

    var nodeRef = Object(external_window_React_["useRef"])(); // Ref to the dom wrapper in case ref can not pass to HTMLElement

    var wrapperNodeRef = Object(external_window_React_["useRef"])();

    function getDomElement() {
      try {
        return Object(findDOMNode["a" /* default */])(nodeRef.current || wrapperNodeRef.current);
      } catch (e) {
        // Only happen when `motionDeadline` trigger but element removed.
        return null;
      }
    }

    var _useStatus = useStatus(supportMotion, visible, getDomElement, props),
        _useStatus2 = Object(slicedToArray["a" /* default */])(_useStatus, 4),
        status = _useStatus2[0],
        statusStep = _useStatus2[1],
        statusStyle = _useStatus2[2],
        mergedVisible = _useStatus2[3]; // Record whether content has rended
    // Will return null for un-rendered even when `removeOnLeave={false}`


    var renderedRef = external_window_React_["useRef"](mergedVisible);

    if (mergedVisible) {
      renderedRef.current = true;
    } // ====================== Refs ======================


    var originRef = Object(external_window_React_["useRef"])(ref);
    originRef.current = ref;
    var setNodeRef = external_window_React_["useCallback"](function (node) {
      nodeRef.current = node;
      Object(es_ref["b" /* fillRef */])(originRef.current, node);
    }, []); // ===================== Render =====================

    var motionChildren;

    var mergedProps = Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, eventProps), {}, {
      visible: visible
    });

    if (!children) {
      // No children
      motionChildren = null;
    } else if (status === STATUS_NONE || !isSupportTransition(props)) {
      // Stable children
      if (mergedVisible) {
        motionChildren = children(Object(objectSpread2["a" /* default */])({}, mergedProps), setNodeRef);
      } else if (!removeOnLeave && renderedRef.current) {
        motionChildren = children(Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, mergedProps), {}, {
          className: leavedClassName
        }), setNodeRef);
      } else if (forceRender) {
        motionChildren = children(Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, mergedProps), {}, {
          style: {
            display: 'none'
          }
        }), setNodeRef);
      } else {
        motionChildren = null;
      }
    } else {
      var _classNames;

      // In motion
      var statusSuffix;

      if (statusStep === STEP_PREPARE) {
        statusSuffix = 'prepare';
      } else if (useStepQueue_isActive(statusStep)) {
        statusSuffix = 'active';
      } else if (statusStep === STEP_START) {
        statusSuffix = 'start';
      }

      motionChildren = children(Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, mergedProps), {}, {
        className: classnames_default()(getTransitionName(motionName, status), (_classNames = {}, Object(defineProperty["a" /* default */])(_classNames, getTransitionName(motionName, "".concat(status, "-").concat(statusSuffix)), statusSuffix), Object(defineProperty["a" /* default */])(_classNames, motionName, typeof motionName === 'string'), _classNames)),
        style: statusStyle
      }), setNodeRef);
    }

    return /*#__PURE__*/external_window_React_["createElement"](es_DomWrapper, {
      ref: wrapperNodeRef
    }, motionChildren);
  });
  CSSMotion.displayName = 'CSSMotion';
  return CSSMotion;
}
/* harmony default export */ var es_CSSMotion = (genCSSMotion(supportTransition));
// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-motion/es/util/diff.js


var STATUS_ADD = 'add';
var STATUS_KEEP = 'keep';
var STATUS_REMOVE = 'remove';
var STATUS_REMOVED = 'removed';
function wrapKeyToObject(key) {
  var keyObj;

  if (key && Object(esm_typeof["a" /* default */])(key) === 'object' && 'key' in key) {
    keyObj = key;
  } else {
    keyObj = {
      key: key
    };
  }

  return Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, keyObj), {}, {
    key: String(keyObj.key)
  });
}
function parseKeys() {
  var keys = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
  return keys.map(wrapKeyToObject);
}
function diffKeys() {
  var prevKeys = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
  var currentKeys = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];
  var list = [];
  var currentIndex = 0;
  var currentLen = currentKeys.length;
  var prevKeyObjects = parseKeys(prevKeys);
  var currentKeyObjects = parseKeys(currentKeys); // Check prev keys to insert or keep

  prevKeyObjects.forEach(function (keyObj) {
    var hit = false;

    for (var i = currentIndex; i < currentLen; i += 1) {
      var currentKeyObj = currentKeyObjects[i];

      if (currentKeyObj.key === keyObj.key) {
        // New added keys should add before current key
        if (currentIndex < i) {
          list = list.concat(currentKeyObjects.slice(currentIndex, i).map(function (obj) {
            return Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, obj), {}, {
              status: STATUS_ADD
            });
          }));
          currentIndex = i;
        }

        list.push(Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, currentKeyObj), {}, {
          status: STATUS_KEEP
        }));
        currentIndex += 1;
        hit = true;
        break;
      }
    } // If not hit, it means key is removed


    if (!hit) {
      list.push(Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, keyObj), {}, {
        status: STATUS_REMOVE
      }));
    }
  }); // Add rest to the list

  if (currentIndex < currentLen) {
    list = list.concat(currentKeyObjects.slice(currentIndex).map(function (obj) {
      return Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, obj), {}, {
        status: STATUS_ADD
      });
    }));
  }
  /**
   * Merge same key when it remove and add again:
   *    [1 - add, 2 - keep, 1 - remove] -> [1 - keep, 2 - keep]
   */


  var keys = {};
  list.forEach(function (_ref) {
    var key = _ref.key;
    keys[key] = (keys[key] || 0) + 1;
  });
  var duplicatedKeys = Object.keys(keys).filter(function (key) {
    return keys[key] > 1;
  });
  duplicatedKeys.forEach(function (matchKey) {
    // Remove `STATUS_REMOVE` node.
    list = list.filter(function (_ref2) {
      var key = _ref2.key,
          status = _ref2.status;
      return key !== matchKey || status !== STATUS_REMOVE;
    }); // Update `STATUS_ADD` to `STATUS_KEEP`

    list.forEach(function (node) {
      if (node.key === matchKey) {
        // eslint-disable-next-line no-param-reassign
        node.status = STATUS_KEEP;
      }
    });
  });
  return list;
}
// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-motion/es/CSSMotionList.js








/* eslint react/prop-types: 0 */




var MOTION_PROP_NAMES = ['eventProps', 'visible', 'children', 'motionName', 'motionAppear', 'motionEnter', 'motionLeave', 'motionLeaveImmediately', 'motionDeadline', 'removeOnLeave', 'leavedClassName', 'onAppearStart', 'onAppearActive', 'onAppearEnd', 'onEnterStart', 'onEnterActive', 'onEnterEnd', 'onLeaveStart', 'onLeaveActive', 'onLeaveEnd'];
/**
 * Generate a CSSMotionList component with config
 * @param transitionSupport No need since CSSMotionList no longer depends on transition support
 * @param CSSMotion CSSMotion component
 */

function genCSSMotionList(transitionSupport) {
  var CSSMotion = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : es_CSSMotion;

  var CSSMotionList = /*#__PURE__*/function (_React$Component) {
    Object(inherits["a" /* default */])(CSSMotionList, _React$Component);

    var _super = Object(createSuper["a" /* default */])(CSSMotionList);

    function CSSMotionList() {
      var _this;

      Object(classCallCheck["a" /* default */])(this, CSSMotionList);

      _this = _super.apply(this, arguments);
      _this.state = {
        keyEntities: []
      };

      _this.removeKey = function (removeKey) {
        _this.setState(function (_ref) {
          var keyEntities = _ref.keyEntities;
          return {
            keyEntities: keyEntities.map(function (entity) {
              if (entity.key !== removeKey) return entity;
              return Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, entity), {}, {
                status: STATUS_REMOVED
              });
            })
          };
        });
      };

      return _this;
    }

    Object(createClass["a" /* default */])(CSSMotionList, [{
      key: "render",
      value: function render() {
        var _this2 = this;

        var keyEntities = this.state.keyEntities;

        var _this$props = this.props,
            component = _this$props.component,
            children = _this$props.children,
            _onVisibleChanged = _this$props.onVisibleChanged,
            restProps = Object(objectWithoutProperties["a" /* default */])(_this$props, ["component", "children", "onVisibleChanged"]);

        var Component = component || external_window_React_["Fragment"];
        var motionProps = {};
        MOTION_PROP_NAMES.forEach(function (prop) {
          motionProps[prop] = restProps[prop];
          delete restProps[prop];
        });
        delete restProps.keys;
        return /*#__PURE__*/external_window_React_["createElement"](Component, restProps, keyEntities.map(function (_ref2) {
          var status = _ref2.status,
              eventProps = Object(objectWithoutProperties["a" /* default */])(_ref2, ["status"]);

          var visible = status === STATUS_ADD || status === STATUS_KEEP;
          return /*#__PURE__*/external_window_React_["createElement"](CSSMotion, Object(esm_extends["a" /* default */])({}, motionProps, {
            key: eventProps.key,
            visible: visible,
            eventProps: eventProps,
            onVisibleChanged: function onVisibleChanged(changedVisible) {
              _onVisibleChanged === null || _onVisibleChanged === void 0 ? void 0 : _onVisibleChanged(changedVisible, {
                key: eventProps.key
              });

              if (!changedVisible) {
                _this2.removeKey(eventProps.key);
              }
            }
          }), children);
        }));
      }
    }], [{
      key: "getDerivedStateFromProps",
      value: function getDerivedStateFromProps(_ref3, _ref4) {
        var keys = _ref3.keys;
        var keyEntities = _ref4.keyEntities;
        var parsedKeyObjects = parseKeys(keys);
        var mixedKeyEntities = diffKeys(keyEntities, parsedKeyObjects);
        return {
          keyEntities: mixedKeyEntities.filter(function (entity) {
            var prevEntity = keyEntities.find(function (_ref5) {
              var key = _ref5.key;
              return entity.key === key;
            }); // Remove if already mark as removed

            if (prevEntity && prevEntity.status === STATUS_REMOVED && entity.status === STATUS_REMOVE) {
              return false;
            }

            return true;
          })
        };
      }
    }]);

    return CSSMotionList;
  }(external_window_React_["Component"]);

  CSSMotionList.defaultProps = {
    component: 'div'
  };
  return CSSMotionList;
}
/* harmony default export */ var es_CSSMotionList = (genCSSMotionList(supportTransition));
// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-motion/es/index.js



/* harmony default export */ var rc_motion_es = (es_CSSMotion);
// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-trigger/es/utils/legacyUtil.js
function getMotion(_ref) {
  var prefixCls = _ref.prefixCls,
      motion = _ref.motion,
      animation = _ref.animation,
      transitionName = _ref.transitionName;

  if (motion) {
    return motion;
  }

  if (animation) {
    return {
      motionName: "".concat(prefixCls, "-").concat(animation)
    };
  }

  if (transitionName) {
    return {
      motionName: transitionName
    };
  }

  return null;
}
// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-trigger/es/Popup/Mask.js






function Mask(props) {
  var prefixCls = props.prefixCls,
      visible = props.visible,
      zIndex = props.zIndex,
      mask = props.mask,
      maskMotion = props.maskMotion,
      maskAnimation = props.maskAnimation,
      maskTransitionName = props.maskTransitionName;

  if (!mask) {
    return null;
  }

  var motion = {};

  if (maskMotion || maskTransitionName || maskAnimation) {
    motion = Object(objectSpread2["a" /* default */])({
      motionAppear: true
    }, getMotion({
      motion: maskMotion,
      prefixCls: prefixCls,
      transitionName: maskTransitionName,
      animation: maskAnimation
    }));
  }

  return /*#__PURE__*/external_window_React_["createElement"](rc_motion_es, Object(esm_extends["a" /* default */])({}, motion, {
    visible: visible,
    removeOnLeave: true
  }), function (_ref) {
    var className = _ref.className;
    return /*#__PURE__*/external_window_React_["createElement"]("div", {
      style: {
        zIndex: zIndex
      },
      className: classnames_default()("".concat(prefixCls, "-mask"), className)
    });
  });
}
// EXTERNAL MODULE: ./node_modules/rc-align/es/index.js + 5 modules
var rc_align_es = __webpack_require__("9mu1");

// EXTERNAL MODULE: ./node_modules/@babel/runtime/regenerator/index.js
var regenerator = __webpack_require__("o0o1");
var regenerator_default = /*#__PURE__*/__webpack_require__.n(regenerator);

// EXTERNAL MODULE: ./node_modules/@babel/runtime/helpers/esm/asyncToGenerator.js
var asyncToGenerator = __webpack_require__("HaE+");

// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-trigger/es/Popup/useVisibleStatus.js





var StatusQueue = ['measure', 'align', null, 'motion'];
/* harmony default export */ var useVisibleStatus = (function (visible, doMeasure) {
  var _useState = Object(external_window_React_["useState"])(null),
      _useState2 = Object(slicedToArray["a" /* default */])(_useState, 2),
      status = _useState2[0],
      setInternalStatus = _useState2[1];

  var rafRef = Object(external_window_React_["useRef"])();
  var destroyRef = Object(external_window_React_["useRef"])(false);

  function setStatus(nextStatus) {
    if (!destroyRef.current) {
      setInternalStatus(nextStatus);
    }
  }

  function cancelRaf() {
    es_raf["a" /* default */].cancel(rafRef.current);
  }

  function goNextStatus(callback) {
    cancelRaf();
    rafRef.current = Object(es_raf["a" /* default */])(function () {
      // Only align should be manually trigger
      setStatus(function (prev) {
        switch (status) {
          case 'align':
            return 'motion';

          case 'motion':
            return 'stable';

          default:
        }

        return prev;
      });
      callback === null || callback === void 0 ? void 0 : callback();
    });
  } // Init status


  Object(external_window_React_["useEffect"])(function () {
    setStatus('measure');
  }, [visible]); // Go next status

  Object(external_window_React_["useEffect"])(function () {
    switch (status) {
      case 'measure':
        doMeasure();
        break;

      default:
    }

    if (status) {
      rafRef.current = Object(es_raf["a" /* default */])( /*#__PURE__*/Object(asyncToGenerator["a" /* default */])( /*#__PURE__*/regenerator_default.a.mark(function _callee() {
        var index, nextStatus;
        return regenerator_default.a.wrap(function _callee$(_context) {
          while (1) {
            switch (_context.prev = _context.next) {
              case 0:
                index = StatusQueue.indexOf(status);
                nextStatus = StatusQueue[index + 1];

                if (nextStatus && index !== -1) {
                  setStatus(nextStatus);
                }

              case 3:
              case "end":
                return _context.stop();
            }
          }
        }, _callee);
      })));
    }
  }, [status]);
  Object(external_window_React_["useEffect"])(function () {
    return function () {
      destroyRef.current = true;
      cancelRaf();
    };
  }, []);
  return [status, goNextStatus];
});
// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-trigger/es/Popup/useStretchStyle.js


/* harmony default export */ var useStretchStyle = (function (stretch) {
  var _React$useState = external_window_React_["useState"]({
    width: 0,
    height: 0
  }),
      _React$useState2 = Object(slicedToArray["a" /* default */])(_React$useState, 2),
      targetSize = _React$useState2[0],
      setTargetSize = _React$useState2[1];

  function measureStretch(element) {
    setTargetSize({
      width: element.offsetWidth,
      height: element.offsetHeight
    });
  } // Merge stretch style


  var style = external_window_React_["useMemo"](function () {
    var sizeStyle = {};

    if (stretch) {
      var width = targetSize.width,
          height = targetSize.height; // Stretch with target

      if (stretch.indexOf('height') !== -1 && height) {
        sizeStyle.height = height;
      } else if (stretch.indexOf('minHeight') !== -1 && height) {
        sizeStyle.minHeight = height;
      }

      if (stretch.indexOf('width') !== -1 && width) {
        sizeStyle.width = width;
      } else if (stretch.indexOf('minWidth') !== -1 && width) {
        sizeStyle.minWidth = width;
      }
    }

    return sizeStyle;
  }, [stretch, targetSize]);
  return [style, measureStretch];
});
// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-trigger/es/Popup/PopupInner.js











var PopupInner = /*#__PURE__*/external_window_React_["forwardRef"](function (props, ref) {
  var visible = props.visible,
      prefixCls = props.prefixCls,
      className = props.className,
      style = props.style,
      children = props.children,
      zIndex = props.zIndex,
      stretch = props.stretch,
      destroyPopupOnHide = props.destroyPopupOnHide,
      forceRender = props.forceRender,
      align = props.align,
      point = props.point,
      getRootDomNode = props.getRootDomNode,
      getClassNameFromAlign = props.getClassNameFromAlign,
      onAlign = props.onAlign,
      onMouseEnter = props.onMouseEnter,
      onMouseLeave = props.onMouseLeave,
      onMouseDown = props.onMouseDown,
      onTouchStart = props.onTouchStart;
  var alignRef = Object(external_window_React_["useRef"])();
  var elementRef = Object(external_window_React_["useRef"])();

  var _useState = Object(external_window_React_["useState"])(),
      _useState2 = Object(slicedToArray["a" /* default */])(_useState, 2),
      alignedClassName = _useState2[0],
      setAlignedClassName = _useState2[1]; // ======================= Measure ========================


  var _useStretchStyle = useStretchStyle(stretch),
      _useStretchStyle2 = Object(slicedToArray["a" /* default */])(_useStretchStyle, 2),
      stretchStyle = _useStretchStyle2[0],
      measureStretchStyle = _useStretchStyle2[1];

  function doMeasure() {
    if (stretch) {
      measureStretchStyle(getRootDomNode());
    }
  } // ======================== Status ========================


  var _useVisibleStatus = useVisibleStatus(visible, doMeasure),
      _useVisibleStatus2 = Object(slicedToArray["a" /* default */])(_useVisibleStatus, 2),
      status = _useVisibleStatus2[0],
      goNextStatus = _useVisibleStatus2[1]; // ======================== Aligns ========================


  var prepareResolveRef = Object(external_window_React_["useRef"])(); // `target` on `rc-align` can accept as a function to get the bind element or a point.
  // ref: https://www.npmjs.com/package/rc-align

  function getAlignTarget() {
    if (point) {
      return point;
    }

    return getRootDomNode;
  }

  function forceAlign() {
    var _alignRef$current;

    (_alignRef$current = alignRef.current) === null || _alignRef$current === void 0 ? void 0 : _alignRef$current.forceAlign();
  }

  function onInternalAlign(popupDomNode, matchAlign) {
    var nextAlignedClassName = getClassNameFromAlign(matchAlign);

    if (alignedClassName !== nextAlignedClassName) {
      setAlignedClassName(nextAlignedClassName);
    }

    if (status === 'align') {
      // Repeat until not more align needed
      if (alignedClassName !== nextAlignedClassName) {
        Promise.resolve().then(function () {
          forceAlign();
        });
      } else {
        goNextStatus(function () {
          var _prepareResolveRef$cu;

          (_prepareResolveRef$cu = prepareResolveRef.current) === null || _prepareResolveRef$cu === void 0 ? void 0 : _prepareResolveRef$cu.call(prepareResolveRef);
        });
      }

      onAlign === null || onAlign === void 0 ? void 0 : onAlign(popupDomNode, matchAlign);
    }
  } // ======================== Motion ========================


  var motion = Object(objectSpread2["a" /* default */])({}, getMotion(props));

  ['onAppearEnd', 'onEnterEnd', 'onLeaveEnd'].forEach(function (eventName) {
    var originHandler = motion[eventName];

    motion[eventName] = function (element, event) {
      goNextStatus();
      return originHandler === null || originHandler === void 0 ? void 0 : originHandler(element, event);
    };
  });

  function onShowPrepare() {
    return new Promise(function (resolve) {
      prepareResolveRef.current = resolve;
    });
  } // Go to stable directly when motion not provided


  external_window_React_["useEffect"](function () {
    if (!motion.motionName && status === 'motion') {
      goNextStatus();
    }
  }, [motion.motionName, status]); // ========================= Refs =========================

  external_window_React_["useImperativeHandle"](ref, function () {
    return {
      forceAlign: forceAlign,
      getElement: function getElement() {
        return elementRef.current;
      }
    };
  }); // ======================== Render ========================

  var mergedStyle = Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, stretchStyle), {}, {
    zIndex: zIndex,
    opacity: status === 'motion' || status === 'stable' || !visible ? undefined : 0,
    pointerEvents: status === 'stable' ? undefined : 'none'
  }, style); // Align status


  var alignDisabled = true;

  if ((align === null || align === void 0 ? void 0 : align.points) && (status === 'align' || status === 'stable')) {
    alignDisabled = false;
  }

  var childNode = children; // Wrapper when multiple children

  if (external_window_React_["Children"].count(children) > 1) {
    childNode = /*#__PURE__*/external_window_React_["createElement"]("div", {
      className: "".concat(prefixCls, "-content")
    }, children);
  }

  return /*#__PURE__*/external_window_React_["createElement"](rc_motion_es, Object(esm_extends["a" /* default */])({
    visible: visible,
    ref: elementRef,
    leavedClassName: "".concat(prefixCls, "-hidden")
  }, motion, {
    onAppearPrepare: onShowPrepare,
    onEnterPrepare: onShowPrepare,
    removeOnLeave: destroyPopupOnHide,
    forceRender: forceRender
  }), function (_ref, motionRef) {
    var motionClassName = _ref.className,
        motionStyle = _ref.style;
    var mergedClassName = classnames_default()(prefixCls, className, alignedClassName, motionClassName);
    return /*#__PURE__*/external_window_React_["createElement"](rc_align_es["a" /* default */], {
      target: getAlignTarget(),
      key: "popup",
      ref: alignRef,
      monitorWindowResize: true,
      disabled: alignDisabled,
      align: align,
      onAlign: onInternalAlign
    }, /*#__PURE__*/external_window_React_["createElement"]("div", {
      ref: motionRef,
      className: mergedClassName,
      onMouseEnter: onMouseEnter,
      onMouseLeave: onMouseLeave,
      onMouseDownCapture: onMouseDown,
      onTouchStartCapture: onTouchStart,
      style: Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, motionStyle), mergedStyle)
    }, childNode));
  });
});
PopupInner.displayName = 'PopupInner';
/* harmony default export */ var Popup_PopupInner = (PopupInner);
// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-trigger/es/Popup/MobilePopupInner.js





var MobilePopupInner = /*#__PURE__*/external_window_React_["forwardRef"](function (props, ref) {
  var prefixCls = props.prefixCls,
      visible = props.visible,
      zIndex = props.zIndex,
      children = props.children,
      _props$mobile = props.mobile;
  _props$mobile = _props$mobile === void 0 ? {} : _props$mobile;
  var popupClassName = _props$mobile.popupClassName,
      popupStyle = _props$mobile.popupStyle,
      _props$mobile$popupMo = _props$mobile.popupMotion,
      popupMotion = _props$mobile$popupMo === void 0 ? {} : _props$mobile$popupMo,
      popupRender = _props$mobile.popupRender;
  var elementRef = external_window_React_["useRef"](); // ========================= Refs =========================

  external_window_React_["useImperativeHandle"](ref, function () {
    return {
      forceAlign: function forceAlign() {},
      getElement: function getElement() {
        return elementRef.current;
      }
    };
  }); // ======================== Render ========================

  var mergedStyle = Object(objectSpread2["a" /* default */])({
    zIndex: zIndex
  }, popupStyle);

  var childNode = children; // Wrapper when multiple children

  if (external_window_React_["Children"].count(children) > 1) {
    childNode = /*#__PURE__*/external_window_React_["createElement"]("div", {
      className: "".concat(prefixCls, "-content")
    }, children);
  } // Mobile support additional render


  if (popupRender) {
    childNode = popupRender(childNode);
  }

  return /*#__PURE__*/external_window_React_["createElement"](rc_motion_es, Object(esm_extends["a" /* default */])({
    visible: visible,
    ref: elementRef,
    removeOnLeave: true
  }, popupMotion), function (_ref, motionRef) {
    var motionClassName = _ref.className,
        motionStyle = _ref.style;
    var mergedClassName = classnames_default()(prefixCls, popupClassName, motionClassName);
    return /*#__PURE__*/external_window_React_["createElement"]("div", {
      ref: motionRef,
      className: mergedClassName,
      style: Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, motionStyle), mergedStyle)
    }, childNode);
  });
});
MobilePopupInner.displayName = 'MobilePopupInner';
/* harmony default export */ var Popup_MobilePopupInner = (MobilePopupInner);
// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-trigger/es/Popup/index.js




var _excluded = ["visible", "mobile"];






var Popup = /*#__PURE__*/external_window_React_["forwardRef"](function (_ref, ref) {
  var visible = _ref.visible,
      mobile = _ref.mobile,
      props = Object(objectWithoutProperties["a" /* default */])(_ref, _excluded);

  var _useState = Object(external_window_React_["useState"])(visible),
      _useState2 = Object(slicedToArray["a" /* default */])(_useState, 2),
      innerVisible = _useState2[0],
      serInnerVisible = _useState2[1];

  var _useState3 = Object(external_window_React_["useState"])(false),
      _useState4 = Object(slicedToArray["a" /* default */])(_useState3, 2),
      inMobile = _useState4[0],
      setInMobile = _useState4[1];

  var cloneProps = Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, props), {}, {
    visible: innerVisible
  }); // We check mobile in visible changed here.
  // And this also delay set `innerVisible` to avoid popup component render flash


  Object(external_window_React_["useEffect"])(function () {
    serInnerVisible(visible);

    if (visible && mobile) {
      setInMobile(es_isMobile());
    }
  }, [visible, mobile]);
  var popupNode = inMobile ? /*#__PURE__*/external_window_React_["createElement"](Popup_MobilePopupInner, Object(esm_extends["a" /* default */])({}, cloneProps, {
    mobile: mobile,
    ref: ref
  })) : /*#__PURE__*/external_window_React_["createElement"](Popup_PopupInner, Object(esm_extends["a" /* default */])({}, cloneProps, {
    ref: ref
  })); // We can use fragment directly but this may failed some selector usage. Keep as origin logic

  return /*#__PURE__*/external_window_React_["createElement"]("div", null, /*#__PURE__*/external_window_React_["createElement"](Mask, cloneProps), popupNode);
});
Popup.displayName = 'Popup';
/* harmony default export */ var es_Popup = (Popup);
// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-trigger/es/context.js

var TriggerContext = /*#__PURE__*/external_window_React_["createContext"](null);
/* harmony default export */ var context = (TriggerContext);
// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-trigger/es/index.js




















function es_noop() {}

function returnEmptyString() {
  return '';
}

function returnDocument(element) {
  if (element) {
    return element.ownerDocument;
  }

  return window.document;
}

var ALL_HANDLERS = ['onClick', 'onMouseDown', 'onTouchStart', 'onMouseEnter', 'onMouseLeave', 'onFocus', 'onBlur', 'onContextMenu'];
/**
 * Internal usage. Do not use in your code since this will be removed.
 */

function generateTrigger(PortalComponent) {
  var Trigger = /*#__PURE__*/function (_React$Component) {
    Object(inherits["a" /* default */])(Trigger, _React$Component);

    var _super = Object(createSuper["a" /* default */])(Trigger);

    function Trigger(props) {
      var _this;

      Object(classCallCheck["a" /* default */])(this, Trigger);

      _this = _super.call(this, props);
      _this.popupRef = /*#__PURE__*/external_window_React_["createRef"]();
      _this.triggerRef = /*#__PURE__*/external_window_React_["createRef"]();
      _this.attachId = void 0;
      _this.clickOutsideHandler = void 0;
      _this.touchOutsideHandler = void 0;
      _this.contextMenuOutsideHandler1 = void 0;
      _this.contextMenuOutsideHandler2 = void 0;
      _this.mouseDownTimeout = void 0;
      _this.focusTime = void 0;
      _this.preClickTime = void 0;
      _this.preTouchTime = void 0;
      _this.delayTimer = void 0;
      _this.hasPopupMouseDown = void 0;

      _this.onMouseEnter = function (e) {
        var mouseEnterDelay = _this.props.mouseEnterDelay;

        _this.fireEvents('onMouseEnter', e);

        _this.delaySetPopupVisible(true, mouseEnterDelay, mouseEnterDelay ? null : e);
      };

      _this.onMouseMove = function (e) {
        _this.fireEvents('onMouseMove', e);

        _this.setPoint(e);
      };

      _this.onMouseLeave = function (e) {
        _this.fireEvents('onMouseLeave', e);

        _this.delaySetPopupVisible(false, _this.props.mouseLeaveDelay);
      };

      _this.onPopupMouseEnter = function () {
        _this.clearDelayTimer();
      };

      _this.onPopupMouseLeave = function (e) {
        var _this$popupRef$curren;

        // https://github.com/react-component/trigger/pull/13
        // react bug?
        if (e.relatedTarget && !e.relatedTarget.setTimeout && Object(contains["a" /* default */])((_this$popupRef$curren = _this.popupRef.current) === null || _this$popupRef$curren === void 0 ? void 0 : _this$popupRef$curren.getElement(), e.relatedTarget)) {
          return;
        }

        _this.delaySetPopupVisible(false, _this.props.mouseLeaveDelay);
      };

      _this.onFocus = function (e) {
        _this.fireEvents('onFocus', e); // incase focusin and focusout


        _this.clearDelayTimer();

        if (_this.isFocusToShow()) {
          _this.focusTime = Date.now();

          _this.delaySetPopupVisible(true, _this.props.focusDelay);
        }
      };

      _this.onMouseDown = function (e) {
        _this.fireEvents('onMouseDown', e);

        _this.preClickTime = Date.now();
      };

      _this.onTouchStart = function (e) {
        _this.fireEvents('onTouchStart', e);

        _this.preTouchTime = Date.now();
      };

      _this.onBlur = function (e) {
        _this.fireEvents('onBlur', e);

        _this.clearDelayTimer();

        if (_this.isBlurToHide()) {
          _this.delaySetPopupVisible(false, _this.props.blurDelay);
        }
      };

      _this.onContextMenu = function (e) {
        e.preventDefault();

        _this.fireEvents('onContextMenu', e);

        _this.setPopupVisible(true, e);
      };

      _this.onContextMenuClose = function () {
        if (_this.isContextMenuToShow()) {
          _this.close();
        }
      };

      _this.onClick = function (event) {
        _this.fireEvents('onClick', event); // focus will trigger click


        if (_this.focusTime) {
          var preTime;

          if (_this.preClickTime && _this.preTouchTime) {
            preTime = Math.min(_this.preClickTime, _this.preTouchTime);
          } else if (_this.preClickTime) {
            preTime = _this.preClickTime;
          } else if (_this.preTouchTime) {
            preTime = _this.preTouchTime;
          }

          if (Math.abs(preTime - _this.focusTime) < 20) {
            return;
          }

          _this.focusTime = 0;
        }

        _this.preClickTime = 0;
        _this.preTouchTime = 0; // Only prevent default when all the action is click.
        // https://github.com/ant-design/ant-design/issues/17043
        // https://github.com/ant-design/ant-design/issues/17291

        if (_this.isClickToShow() && (_this.isClickToHide() || _this.isBlurToHide()) && event && event.preventDefault) {
          event.preventDefault();
        }

        var nextVisible = !_this.state.popupVisible;

        if (_this.isClickToHide() && !nextVisible || nextVisible && _this.isClickToShow()) {
          _this.setPopupVisible(!_this.state.popupVisible, event);
        }
      };

      _this.onPopupMouseDown = function () {
        _this.hasPopupMouseDown = true;
        clearTimeout(_this.mouseDownTimeout);
        _this.mouseDownTimeout = window.setTimeout(function () {
          _this.hasPopupMouseDown = false;
        }, 0);

        if (_this.context) {
          var _this$context;

          (_this$context = _this.context).onPopupMouseDown.apply(_this$context, arguments);
        }
      };

      _this.onDocumentClick = function (event) {
        if (_this.props.mask && !_this.props.maskClosable) {
          return;
        }

        var target = event.target;

        var root = _this.getRootDomNode();

        var popupNode = _this.getPopupDomNode();

        if ( // mousedown on the target should also close popup when action is contextMenu.
        // https://github.com/ant-design/ant-design/issues/29853
        (!Object(contains["a" /* default */])(root, target) || _this.isContextMenuOnly()) && !Object(contains["a" /* default */])(popupNode, target) && !_this.hasPopupMouseDown) {
          _this.close();
        }
      };

      _this.getRootDomNode = function () {
        var getTriggerDOMNode = _this.props.getTriggerDOMNode;

        if (getTriggerDOMNode) {
          return getTriggerDOMNode(_this.triggerRef.current);
        }

        try {
          var domNode = Object(findDOMNode["a" /* default */])(_this.triggerRef.current);

          if (domNode) {
            return domNode;
          }
        } catch (err) {// Do nothing
        }

        return external_window_ReactDOM_default.a.findDOMNode(Object(assertThisInitialized["a" /* default */])(_this));
      };

      _this.getPopupClassNameFromAlign = function (align) {
        var className = [];
        var _this$props = _this.props,
            popupPlacement = _this$props.popupPlacement,
            builtinPlacements = _this$props.builtinPlacements,
            prefixCls = _this$props.prefixCls,
            alignPoint = _this$props.alignPoint,
            getPopupClassNameFromAlign = _this$props.getPopupClassNameFromAlign;

        if (popupPlacement && builtinPlacements) {
          className.push(getAlignPopupClassName(builtinPlacements, prefixCls, align, alignPoint));
        }

        if (getPopupClassNameFromAlign) {
          className.push(getPopupClassNameFromAlign(align));
        }

        return className.join(' ');
      };

      _this.getComponent = function () {
        var _this$props2 = _this.props,
            prefixCls = _this$props2.prefixCls,
            destroyPopupOnHide = _this$props2.destroyPopupOnHide,
            popupClassName = _this$props2.popupClassName,
            onPopupAlign = _this$props2.onPopupAlign,
            popupMotion = _this$props2.popupMotion,
            popupAnimation = _this$props2.popupAnimation,
            popupTransitionName = _this$props2.popupTransitionName,
            popupStyle = _this$props2.popupStyle,
            mask = _this$props2.mask,
            maskAnimation = _this$props2.maskAnimation,
            maskTransitionName = _this$props2.maskTransitionName,
            maskMotion = _this$props2.maskMotion,
            zIndex = _this$props2.zIndex,
            popup = _this$props2.popup,
            stretch = _this$props2.stretch,
            alignPoint = _this$props2.alignPoint,
            mobile = _this$props2.mobile,
            forceRender = _this$props2.forceRender;
        var _this$state = _this.state,
            popupVisible = _this$state.popupVisible,
            point = _this$state.point;

        var align = _this.getPopupAlign();

        var mouseProps = {};

        if (_this.isMouseEnterToShow()) {
          mouseProps.onMouseEnter = _this.onPopupMouseEnter;
        }

        if (_this.isMouseLeaveToHide()) {
          mouseProps.onMouseLeave = _this.onPopupMouseLeave;
        }

        mouseProps.onMouseDown = _this.onPopupMouseDown;
        mouseProps.onTouchStart = _this.onPopupMouseDown;
        return /*#__PURE__*/external_window_React_["createElement"](es_Popup, Object(esm_extends["a" /* default */])({
          prefixCls: prefixCls,
          destroyPopupOnHide: destroyPopupOnHide,
          visible: popupVisible,
          point: alignPoint && point,
          className: popupClassName,
          align: align,
          onAlign: onPopupAlign,
          animation: popupAnimation,
          getClassNameFromAlign: _this.getPopupClassNameFromAlign
        }, mouseProps, {
          stretch: stretch,
          getRootDomNode: _this.getRootDomNode,
          style: popupStyle,
          mask: mask,
          zIndex: zIndex,
          transitionName: popupTransitionName,
          maskAnimation: maskAnimation,
          maskTransitionName: maskTransitionName,
          maskMotion: maskMotion,
          ref: _this.popupRef,
          motion: popupMotion,
          mobile: mobile,
          forceRender: forceRender
        }), typeof popup === 'function' ? popup() : popup);
      };

      _this.attachParent = function (popupContainer) {
        es_raf["a" /* default */].cancel(_this.attachId);
        var _this$props3 = _this.props,
            getPopupContainer = _this$props3.getPopupContainer,
            getDocument = _this$props3.getDocument;

        var domNode = _this.getRootDomNode();

        var mountNode;

        if (!getPopupContainer) {
          mountNode = getDocument(_this.getRootDomNode()).body;
        } else if (domNode || getPopupContainer.length === 0) {
          // Compatible for legacy getPopupContainer with domNode argument.
          // If no need `domNode` argument, will call directly.
          // https://codesandbox.io/s/eloquent-mclean-ss93m?file=/src/App.js
          mountNode = getPopupContainer(domNode);
        }

        if (mountNode) {
          mountNode.appendChild(popupContainer);
        } else {
          // Retry after frame render in case parent not ready
          _this.attachId = Object(es_raf["a" /* default */])(function () {
            _this.attachParent(popupContainer);
          });
        }
      };

      _this.getContainer = function () {
        var getDocument = _this.props.getDocument;
        var popupContainer = getDocument(_this.getRootDomNode()).createElement('div'); // Make sure default popup container will never cause scrollbar appearing
        // https://github.com/react-component/trigger/issues/41

        popupContainer.style.position = 'absolute';
        popupContainer.style.top = '0';
        popupContainer.style.left = '0';
        popupContainer.style.width = '100%';

        _this.attachParent(popupContainer);

        return popupContainer;
      };

      _this.setPoint = function (point) {
        var alignPoint = _this.props.alignPoint;
        if (!alignPoint || !point) return;

        _this.setState({
          point: {
            pageX: point.pageX,
            pageY: point.pageY
          }
        });
      };

      _this.handlePortalUpdate = function () {
        if (_this.state.prevPopupVisible !== _this.state.popupVisible) {
          _this.props.afterPopupVisibleChange(_this.state.popupVisible);
        }
      };

      _this.triggerContextValue = {
        onPopupMouseDown: _this.onPopupMouseDown
      };

      var _popupVisible;

      if ('popupVisible' in props) {
        _popupVisible = !!props.popupVisible;
      } else {
        _popupVisible = !!props.defaultPopupVisible;
      }

      _this.state = {
        prevPopupVisible: _popupVisible,
        popupVisible: _popupVisible
      };
      ALL_HANDLERS.forEach(function (h) {
        _this["fire".concat(h)] = function (e) {
          _this.fireEvents(h, e);
        };
      });
      return _this;
    }

    Object(createClass["a" /* default */])(Trigger, [{
      key: "componentDidMount",
      value: function componentDidMount() {
        this.componentDidUpdate();
      }
    }, {
      key: "componentDidUpdate",
      value: function componentDidUpdate() {
        var props = this.props;
        var state = this.state; // We must listen to `mousedown` or `touchstart`, edge case:
        // https://github.com/ant-design/ant-design/issues/5804
        // https://github.com/react-component/calendar/issues/250
        // https://github.com/react-component/trigger/issues/50

        if (state.popupVisible) {
          var currentDocument;

          if (!this.clickOutsideHandler && (this.isClickToHide() || this.isContextMenuToShow())) {
            currentDocument = props.getDocument(this.getRootDomNode());
            this.clickOutsideHandler = Object(addEventListener["a" /* default */])(currentDocument, 'mousedown', this.onDocumentClick);
          } // always hide on mobile


          if (!this.touchOutsideHandler) {
            currentDocument = currentDocument || props.getDocument(this.getRootDomNode());
            this.touchOutsideHandler = Object(addEventListener["a" /* default */])(currentDocument, 'touchstart', this.onDocumentClick);
          } // close popup when trigger type contains 'onContextMenu' and document is scrolling.


          if (!this.contextMenuOutsideHandler1 && this.isContextMenuToShow()) {
            currentDocument = currentDocument || props.getDocument(this.getRootDomNode());
            this.contextMenuOutsideHandler1 = Object(addEventListener["a" /* default */])(currentDocument, 'scroll', this.onContextMenuClose);
          } // close popup when trigger type contains 'onContextMenu' and window is blur.


          if (!this.contextMenuOutsideHandler2 && this.isContextMenuToShow()) {
            this.contextMenuOutsideHandler2 = Object(addEventListener["a" /* default */])(window, 'blur', this.onContextMenuClose);
          }

          return;
        }

        this.clearOutsideHandler();
      }
    }, {
      key: "componentWillUnmount",
      value: function componentWillUnmount() {
        this.clearDelayTimer();
        this.clearOutsideHandler();
        clearTimeout(this.mouseDownTimeout);
        es_raf["a" /* default */].cancel(this.attachId);
      }
    }, {
      key: "getPopupDomNode",
      value: function getPopupDomNode() {
        var _this$popupRef$curren2;

        // for test
        return ((_this$popupRef$curren2 = this.popupRef.current) === null || _this$popupRef$curren2 === void 0 ? void 0 : _this$popupRef$curren2.getElement()) || null;
      }
    }, {
      key: "getPopupAlign",
      value: function getPopupAlign() {
        var props = this.props;
        var popupPlacement = props.popupPlacement,
            popupAlign = props.popupAlign,
            builtinPlacements = props.builtinPlacements;

        if (popupPlacement && builtinPlacements) {
          return getAlignFromPlacement(builtinPlacements, popupPlacement, popupAlign);
        }

        return popupAlign;
      }
    }, {
      key: "setPopupVisible",
      value:
      /**
       * @param popupVisible    Show or not the popup element
       * @param event           SyntheticEvent, used for `pointAlign`
       */
      function setPopupVisible(popupVisible, event) {
        var alignPoint = this.props.alignPoint;
        var prevPopupVisible = this.state.popupVisible;
        this.clearDelayTimer();

        if (prevPopupVisible !== popupVisible) {
          if (!('popupVisible' in this.props)) {
            this.setState({
              popupVisible: popupVisible,
              prevPopupVisible: prevPopupVisible
            });
          }

          this.props.onPopupVisibleChange(popupVisible);
        } // Always record the point position since mouseEnterDelay will delay the show


        if (alignPoint && event && popupVisible) {
          this.setPoint(event);
        }
      }
    }, {
      key: "delaySetPopupVisible",
      value: function delaySetPopupVisible(visible, delayS, event) {
        var _this2 = this;

        var delay = delayS * 1000;
        this.clearDelayTimer();

        if (delay) {
          var point = event ? {
            pageX: event.pageX,
            pageY: event.pageY
          } : null;
          this.delayTimer = window.setTimeout(function () {
            _this2.setPopupVisible(visible, point);

            _this2.clearDelayTimer();
          }, delay);
        } else {
          this.setPopupVisible(visible, event);
        }
      }
    }, {
      key: "clearDelayTimer",
      value: function clearDelayTimer() {
        if (this.delayTimer) {
          clearTimeout(this.delayTimer);
          this.delayTimer = null;
        }
      }
    }, {
      key: "clearOutsideHandler",
      value: function clearOutsideHandler() {
        if (this.clickOutsideHandler) {
          this.clickOutsideHandler.remove();
          this.clickOutsideHandler = null;
        }

        if (this.contextMenuOutsideHandler1) {
          this.contextMenuOutsideHandler1.remove();
          this.contextMenuOutsideHandler1 = null;
        }

        if (this.contextMenuOutsideHandler2) {
          this.contextMenuOutsideHandler2.remove();
          this.contextMenuOutsideHandler2 = null;
        }

        if (this.touchOutsideHandler) {
          this.touchOutsideHandler.remove();
          this.touchOutsideHandler = null;
        }
      }
    }, {
      key: "createTwoChains",
      value: function createTwoChains(event) {
        var childPros = this.props.children.props;
        var props = this.props;

        if (childPros[event] && props[event]) {
          return this["fire".concat(event)];
        }

        return childPros[event] || props[event];
      }
    }, {
      key: "isClickToShow",
      value: function isClickToShow() {
        var _this$props4 = this.props,
            action = _this$props4.action,
            showAction = _this$props4.showAction;
        return action.indexOf('click') !== -1 || showAction.indexOf('click') !== -1;
      }
    }, {
      key: "isContextMenuOnly",
      value: function isContextMenuOnly() {
        var action = this.props.action;
        return action === 'contextMenu' || action.length === 1 && action[0] === 'contextMenu';
      }
    }, {
      key: "isContextMenuToShow",
      value: function isContextMenuToShow() {
        var _this$props5 = this.props,
            action = _this$props5.action,
            showAction = _this$props5.showAction;
        return action.indexOf('contextMenu') !== -1 || showAction.indexOf('contextMenu') !== -1;
      }
    }, {
      key: "isClickToHide",
      value: function isClickToHide() {
        var _this$props6 = this.props,
            action = _this$props6.action,
            hideAction = _this$props6.hideAction;
        return action.indexOf('click') !== -1 || hideAction.indexOf('click') !== -1;
      }
    }, {
      key: "isMouseEnterToShow",
      value: function isMouseEnterToShow() {
        var _this$props7 = this.props,
            action = _this$props7.action,
            showAction = _this$props7.showAction;
        return action.indexOf('hover') !== -1 || showAction.indexOf('mouseEnter') !== -1;
      }
    }, {
      key: "isMouseLeaveToHide",
      value: function isMouseLeaveToHide() {
        var _this$props8 = this.props,
            action = _this$props8.action,
            hideAction = _this$props8.hideAction;
        return action.indexOf('hover') !== -1 || hideAction.indexOf('mouseLeave') !== -1;
      }
    }, {
      key: "isFocusToShow",
      value: function isFocusToShow() {
        var _this$props9 = this.props,
            action = _this$props9.action,
            showAction = _this$props9.showAction;
        return action.indexOf('focus') !== -1 || showAction.indexOf('focus') !== -1;
      }
    }, {
      key: "isBlurToHide",
      value: function isBlurToHide() {
        var _this$props10 = this.props,
            action = _this$props10.action,
            hideAction = _this$props10.hideAction;
        return action.indexOf('focus') !== -1 || hideAction.indexOf('blur') !== -1;
      }
    }, {
      key: "forcePopupAlign",
      value: function forcePopupAlign() {
        if (this.state.popupVisible) {
          var _this$popupRef$curren3;

          (_this$popupRef$curren3 = this.popupRef.current) === null || _this$popupRef$curren3 === void 0 ? void 0 : _this$popupRef$curren3.forceAlign();
        }
      }
    }, {
      key: "fireEvents",
      value: function fireEvents(type, e) {
        var childCallback = this.props.children.props[type];

        if (childCallback) {
          childCallback(e);
        }

        var callback = this.props[type];

        if (callback) {
          callback(e);
        }
      }
    }, {
      key: "close",
      value: function close() {
        this.setPopupVisible(false);
      }
    }, {
      key: "render",
      value: function render() {
        var popupVisible = this.state.popupVisible;
        var _this$props11 = this.props,
            children = _this$props11.children,
            forceRender = _this$props11.forceRender,
            alignPoint = _this$props11.alignPoint,
            className = _this$props11.className,
            autoDestroy = _this$props11.autoDestroy;
        var child = external_window_React_["Children"].only(children);
        var newChildProps = {
          key: 'trigger'
        }; // ============================== Visible Handlers ==============================
        // >>> ContextMenu

        if (this.isContextMenuToShow()) {
          newChildProps.onContextMenu = this.onContextMenu;
        } else {
          newChildProps.onContextMenu = this.createTwoChains('onContextMenu');
        } // >>> Click


        if (this.isClickToHide() || this.isClickToShow()) {
          newChildProps.onClick = this.onClick;
          newChildProps.onMouseDown = this.onMouseDown;
          newChildProps.onTouchStart = this.onTouchStart;
        } else {
          newChildProps.onClick = this.createTwoChains('onClick');
          newChildProps.onMouseDown = this.createTwoChains('onMouseDown');
          newChildProps.onTouchStart = this.createTwoChains('onTouchStart');
        } // >>> Hover(enter)


        if (this.isMouseEnterToShow()) {
          newChildProps.onMouseEnter = this.onMouseEnter; // Point align

          if (alignPoint) {
            newChildProps.onMouseMove = this.onMouseMove;
          }
        } else {
          newChildProps.onMouseEnter = this.createTwoChains('onMouseEnter');
        } // >>> Hover(leave)


        if (this.isMouseLeaveToHide()) {
          newChildProps.onMouseLeave = this.onMouseLeave;
        } else {
          newChildProps.onMouseLeave = this.createTwoChains('onMouseLeave');
        } // >>> Focus


        if (this.isFocusToShow() || this.isBlurToHide()) {
          newChildProps.onFocus = this.onFocus;
          newChildProps.onBlur = this.onBlur;
        } else {
          newChildProps.onFocus = this.createTwoChains('onFocus');
          newChildProps.onBlur = this.createTwoChains('onBlur');
        } // =================================== Render ===================================


        var childrenClassName = classnames_default()(child && child.props && child.props.className, className);

        if (childrenClassName) {
          newChildProps.className = childrenClassName;
        }

        var cloneProps = Object(objectSpread2["a" /* default */])({}, newChildProps);

        if (Object(es_ref["c" /* supportRef */])(child)) {
          cloneProps.ref = Object(es_ref["a" /* composeRef */])(this.triggerRef, child.ref);
        }

        var trigger = /*#__PURE__*/external_window_React_["cloneElement"](child, cloneProps);
        var portal; // prevent unmounting after it's rendered

        if (popupVisible || this.popupRef.current || forceRender) {
          portal = /*#__PURE__*/external_window_React_["createElement"](PortalComponent, {
            key: "portal",
            getContainer: this.getContainer,
            didUpdate: this.handlePortalUpdate
          }, this.getComponent());
        }

        if (!popupVisible && autoDestroy) {
          portal = null;
        }

        return /*#__PURE__*/external_window_React_["createElement"](context.Provider, {
          value: this.triggerContextValue
        }, trigger, portal);
      }
    }], [{
      key: "getDerivedStateFromProps",
      value: function getDerivedStateFromProps(_ref, prevState) {
        var popupVisible = _ref.popupVisible;
        var newState = {};

        if (popupVisible !== undefined && prevState.popupVisible !== popupVisible) {
          newState.popupVisible = popupVisible;
          newState.prevPopupVisible = prevState.popupVisible;
        }

        return newState;
      }
    }]);

    return Trigger;
  }(external_window_React_["Component"]);

  Trigger.contextType = context;
  Trigger.defaultProps = {
    prefixCls: 'rc-trigger-popup',
    getPopupClassNameFromAlign: returnEmptyString,
    getDocument: returnDocument,
    onPopupVisibleChange: es_noop,
    afterPopupVisibleChange: es_noop,
    onPopupAlign: es_noop,
    popupClassName: '',
    mouseEnterDelay: 0,
    mouseLeaveDelay: 0.1,
    focusDelay: 0,
    blurDelay: 0.15,
    popupStyle: {},
    destroyPopupOnHide: false,
    popupAlign: {},
    defaultPopupVisible: false,
    mask: false,
    maskClosable: true,
    action: [],
    showAction: [],
    hideAction: [],
    autoDestroy: false
  };
  return Trigger;
}
/* harmony default export */ var rc_trigger_es = (generateTrigger(Portal["a" /* default */]));
// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-menu/es/placements.js
var autoAdjustOverflow = {
  adjustX: 1,
  adjustY: 1
};
var placements = {
  topLeft: {
    points: ['bl', 'tl'],
    overflow: autoAdjustOverflow,
    offset: [0, -7]
  },
  bottomLeft: {
    points: ['tl', 'bl'],
    overflow: autoAdjustOverflow,
    offset: [0, 7]
  },
  leftTop: {
    points: ['tr', 'tl'],
    overflow: autoAdjustOverflow,
    offset: [-4, 0]
  },
  rightTop: {
    points: ['tl', 'tr'],
    overflow: autoAdjustOverflow,
    offset: [4, 0]
  }
};
var placementsRtl = {
  topLeft: {
    points: ['bl', 'tl'],
    overflow: autoAdjustOverflow,
    offset: [0, -7]
  },
  bottomLeft: {
    points: ['tl', 'bl'],
    overflow: autoAdjustOverflow,
    offset: [0, 7]
  },
  rightTop: {
    points: ['tr', 'tl'],
    overflow: autoAdjustOverflow,
    offset: [-4, 0]
  },
  leftTop: {
    points: ['tl', 'tr'],
    overflow: autoAdjustOverflow,
    offset: [4, 0]
  }
};
/* harmony default export */ var es_placements = (placements);
// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-menu/es/SubMenu.js



















var guid = 0;
var popupPlacementMap = {
  horizontal: 'bottomLeft',
  vertical: 'rightTop',
  'vertical-left': 'rightTop',
  'vertical-right': 'leftTop'
};

var SubMenu_updateDefaultActiveFirst = function updateDefaultActiveFirst(store, eventKey, defaultActiveFirst) {
  var menuId = getMenuIdFromSubMenuEventKey(eventKey);
  var state = store.getState();
  store.setState({
    defaultActiveFirst: Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, state.defaultActiveFirst), {}, Object(defineProperty["a" /* default */])({}, menuId, defaultActiveFirst))
  });
};

var SubMenu_SubMenu = /*#__PURE__*/function (_React$Component) {
  Object(inherits["a" /* default */])(SubMenu, _React$Component);

  var _super = Object(createSuper["a" /* default */])(SubMenu);

  function SubMenu(props) {
    var _this;

    Object(classCallCheck["a" /* default */])(this, SubMenu);

    _this = _super.call(this, props);

    _this.onDestroy = function (key) {
      _this.props.onDestroy(key);
    };
    /**
     * note:
     *  This legacy code that `onKeyDown` is called by parent instead of dom self.
     *  which need return code to check if this event is handled
     */


    _this.onKeyDown = function (e) {
      var keyCode = e.keyCode;
      var menu = _this.menuInstance;
      var store = _this.props.store;

      var visible = _this.getVisible();

      if (keyCode === KeyCode["a" /* default */].ENTER) {
        _this.onTitleClick(e);

        SubMenu_updateDefaultActiveFirst(store, _this.props.eventKey, true);
        return true;
      }

      if (keyCode === KeyCode["a" /* default */].RIGHT) {
        if (visible) {
          menu.onKeyDown(e);
        } else {
          _this.triggerOpenChange(true); // need to update current menu's defaultActiveFirst value


          SubMenu_updateDefaultActiveFirst(store, _this.props.eventKey, true);
        }

        return true;
      }

      if (keyCode === KeyCode["a" /* default */].LEFT) {
        var handled;

        if (visible) {
          handled = menu.onKeyDown(e);
        } else {
          return undefined;
        }

        if (!handled) {
          _this.triggerOpenChange(false);

          handled = true;
        }

        return handled;
      }

      if (visible && (keyCode === KeyCode["a" /* default */].UP || keyCode === KeyCode["a" /* default */].DOWN)) {
        return menu.onKeyDown(e);
      }

      return undefined;
    };

    _this.onOpenChange = function (e) {
      _this.props.onOpenChange(e);
    };

    _this.onPopupVisibleChange = function (visible) {
      _this.triggerOpenChange(visible, visible ? 'mouseenter' : 'mouseleave');
    };

    _this.onMouseEnter = function (e) {
      var _this$props = _this.props,
          key = _this$props.eventKey,
          onMouseEnter = _this$props.onMouseEnter,
          store = _this$props.store;
      SubMenu_updateDefaultActiveFirst(store, _this.props.eventKey, false);
      onMouseEnter({
        key: key,
        domEvent: e
      });
    };

    _this.onMouseLeave = function (e) {
      var _this$props2 = _this.props,
          parentMenu = _this$props2.parentMenu,
          eventKey = _this$props2.eventKey,
          onMouseLeave = _this$props2.onMouseLeave;
      parentMenu.subMenuInstance = Object(assertThisInitialized["a" /* default */])(_this);
      onMouseLeave({
        key: eventKey,
        domEvent: e
      });
    };

    _this.onTitleMouseEnter = function (domEvent) {
      var _this$props3 = _this.props,
          key = _this$props3.eventKey,
          onItemHover = _this$props3.onItemHover,
          onTitleMouseEnter = _this$props3.onTitleMouseEnter;
      onItemHover({
        key: key,
        hover: true
      });
      onTitleMouseEnter({
        key: key,
        domEvent: domEvent
      });
    };

    _this.onTitleMouseLeave = function (e) {
      var _this$props4 = _this.props,
          parentMenu = _this$props4.parentMenu,
          eventKey = _this$props4.eventKey,
          onItemHover = _this$props4.onItemHover,
          onTitleMouseLeave = _this$props4.onTitleMouseLeave;
      parentMenu.subMenuInstance = Object(assertThisInitialized["a" /* default */])(_this);
      onItemHover({
        key: eventKey,
        hover: false
      });
      onTitleMouseLeave({
        key: eventKey,
        domEvent: e
      });
    };

    _this.onTitleClick = function (e) {
      var _assertThisInitialize = Object(assertThisInitialized["a" /* default */])(_this),
          props = _assertThisInitialize.props;

      props.onTitleClick({
        key: props.eventKey,
        domEvent: e
      });

      if (props.triggerSubMenuAction === 'hover') {
        return;
      }

      _this.triggerOpenChange(!_this.getVisible(), 'click');

      SubMenu_updateDefaultActiveFirst(props.store, _this.props.eventKey, false);
    };

    _this.onSubMenuClick = function (info) {
      // in the case of overflowed submenu
      // onClick is not copied over
      if (typeof _this.props.onClick === 'function') {
        _this.props.onClick(_this.addKeyPath(info));
      }
    };

    _this.onSelect = function (info) {
      _this.props.onSelect(info);
    };

    _this.onDeselect = function (info) {
      _this.props.onDeselect(info);
    };

    _this.getPrefixCls = function () {
      return "".concat(_this.props.rootPrefixCls, "-submenu");
    };

    _this.getActiveClassName = function () {
      return "".concat(_this.getPrefixCls(), "-active");
    };

    _this.getDisabledClassName = function () {
      return "".concat(_this.getPrefixCls(), "-disabled");
    };

    _this.getSelectedClassName = function () {
      return "".concat(_this.getPrefixCls(), "-selected");
    };

    _this.getOpenClassName = function () {
      return "".concat(_this.props.rootPrefixCls, "-submenu-open");
    };

    _this.getVisible = function () {
      return _this.state.isOpen;
    };

    _this.getMode = function () {
      return _this.state.mode;
    };

    _this.saveMenuInstance = function (c) {
      // children menu instance
      _this.menuInstance = c;
    };

    _this.addKeyPath = function (info) {
      return Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, info), {}, {
        keyPath: (info.keyPath || []).concat(_this.props.eventKey)
      });
    };

    _this.triggerOpenChange = function (open, type) {
      var key = _this.props.eventKey;

      var openChange = function openChange() {
        _this.onOpenChange({
          key: key,
          item: Object(assertThisInitialized["a" /* default */])(_this),
          trigger: type,
          open: open
        });
      };

      if (type === 'mouseenter') {
        // make sure mouseenter happen after other menu item's mouseleave
        _this.mouseenterTimeout = setTimeout(function () {
          openChange();
        }, 0);
      } else {
        openChange();
      }
    };

    _this.isChildrenSelected = function () {
      var ret = {
        find: false
      };
      loopMenuItemRecursively(_this.props.children, _this.props.selectedKeys, ret);
      return ret.find;
    };

    _this.isInlineMode = function () {
      return _this.getMode() === 'inline';
    };

    _this.adjustWidth = function () {
      /* istanbul ignore if */
      if (!_this.subMenuTitle || !_this.menuInstance) {
        return;
      }

      var popupMenu = external_window_ReactDOM_["findDOMNode"](_this.menuInstance);

      if (popupMenu.offsetWidth >= _this.subMenuTitle.offsetWidth) {
        return;
      }
      /* istanbul ignore next */


      popupMenu.style.minWidth = "".concat(_this.subMenuTitle.offsetWidth, "px");
    };

    _this.saveSubMenuTitle = function (subMenuTitle) {
      _this.subMenuTitle = subMenuTitle;
    };

    _this.getBaseProps = function () {
      var _assertThisInitialize2 = Object(assertThisInitialized["a" /* default */])(_this),
          props = _assertThisInitialize2.props;

      var mergedMode = _this.getMode();

      return {
        mode: mergedMode === 'horizontal' ? 'vertical' : mergedMode,
        visible: _this.getVisible(),
        level: props.level + 1,
        inlineIndent: props.inlineIndent,
        focusable: false,
        onClick: _this.onSubMenuClick,
        onSelect: _this.onSelect,
        onDeselect: _this.onDeselect,
        onDestroy: _this.onDestroy,
        selectedKeys: props.selectedKeys,
        eventKey: "".concat(props.eventKey, "-menu-"),
        openKeys: props.openKeys,
        motion: props.motion,
        onOpenChange: _this.onOpenChange,
        subMenuOpenDelay: props.subMenuOpenDelay,
        parentMenu: Object(assertThisInitialized["a" /* default */])(_this),
        subMenuCloseDelay: props.subMenuCloseDelay,
        forceSubMenuRender: props.forceSubMenuRender,
        triggerSubMenuAction: props.triggerSubMenuAction,
        builtinPlacements: props.builtinPlacements,
        defaultActiveFirst: props.store.getState().defaultActiveFirst[getMenuIdFromSubMenuEventKey(props.eventKey)],
        multiple: props.multiple,
        prefixCls: props.rootPrefixCls,
        id: _this.internalMenuId,
        manualRef: _this.saveMenuInstance,
        itemIcon: props.itemIcon,
        expandIcon: props.expandIcon,
        direction: props.direction
      };
    };

    _this.getMotion = function (mode, visible) {
      var _assertThisInitialize3 = Object(assertThisInitialized["a" /* default */])(_this),
          haveRendered = _assertThisInitialize3.haveRendered;

      var _this$props5 = _this.props,
          motion = _this$props5.motion,
          rootPrefixCls = _this$props5.rootPrefixCls; // don't show transition on first rendering (no animation for opened menu)
      // show appear transition if it's not visible (not sure why)
      // show appear transition if it's not inline mode

      var mergedMotion = Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, motion), {}, {
        leavedClassName: "".concat(rootPrefixCls, "-hidden"),
        removeOnLeave: false,
        motionAppear: haveRendered || !visible || mode !== 'inline'
      });

      return mergedMotion;
    };

    var store = props.store,
        eventKey = props.eventKey;

    var _store$getState = store.getState(),
        defaultActiveFirst = _store$getState.defaultActiveFirst;

    _this.isRootMenu = false;
    var value = false;

    if (defaultActiveFirst) {
      value = defaultActiveFirst[eventKey];
    }

    SubMenu_updateDefaultActiveFirst(store, eventKey, value);
    _this.state = {
      mode: props.mode,
      isOpen: props.isOpen
    };
    return _this;
  }

  Object(createClass["a" /* default */])(SubMenu, [{
    key: "componentDidMount",
    value: function componentDidMount() {
      this.componentDidUpdate();
    }
  }, {
    key: "componentDidUpdate",
    value: function componentDidUpdate() {
      var _this2 = this;

      var _this$props6 = this.props,
          mode = _this$props6.mode,
          parentMenu = _this$props6.parentMenu,
          manualRef = _this$props6.manualRef,
          isOpen = _this$props6.isOpen;

      var updateState = function updateState() {
        _this2.setState({
          mode: mode,
          isOpen: isOpen
        });
      }; // Delay sync when mode changed in case openKeys change not sync


      var isOpenChanged = isOpen !== this.state.isOpen;
      var isModeChanged = mode !== this.state.mode;

      if (isModeChanged || isOpenChanged) {
        es_raf["a" /* default */].cancel(this.updateStateRaf);

        if (isModeChanged) {
          this.updateStateRaf = Object(es_raf["a" /* default */])(updateState);
        } else {
          updateState();
        }
      } // invoke customized ref to expose component to mixin


      if (manualRef) {
        manualRef(this);
      }

      if (mode !== 'horizontal' || !(parentMenu === null || parentMenu === void 0 ? void 0 : parentMenu.isRootMenu) || !isOpen) {
        return;
      }

      this.minWidthTimeout = setTimeout(function () {
        return _this2.adjustWidth();
      }, 0);
    }
  }, {
    key: "componentWillUnmount",
    value: function componentWillUnmount() {
      var _this$props7 = this.props,
          onDestroy = _this$props7.onDestroy,
          eventKey = _this$props7.eventKey;

      if (onDestroy) {
        onDestroy(eventKey);
      }
      /* istanbul ignore if */


      if (this.minWidthTimeout) {
        clearTimeout(this.minWidthTimeout);
      }
      /* istanbul ignore if */


      if (this.mouseenterTimeout) {
        clearTimeout(this.mouseenterTimeout);
      }

      es_raf["a" /* default */].cancel(this.updateStateRaf);
    }
  }, {
    key: "renderPopupMenu",
    value: function renderPopupMenu(className, style) {
      var baseProps = this.getBaseProps();
      /**
       * zombiej: Why SubPopupMenu here?
       * Seems whatever popup or inline mode both will render SubPopupMenu.
       * It's controlled by Trigger for popup or not.
       */

      return /*#__PURE__*/external_window_React_["createElement"](es_SubPopupMenu, Object(esm_extends["a" /* default */])({}, baseProps, {
        id: this.internalMenuId,
        className: className,
        style: style
      }), this.props.children);
    }
  }, {
    key: "renderChildren",
    value: function renderChildren() {
      var _this3 = this;

      var baseProps = this.getBaseProps();
      var mode = baseProps.mode,
          visible = baseProps.visible,
          forceSubMenuRender = baseProps.forceSubMenuRender,
          direction = baseProps.direction; // [Legacy] getMotion must be called before `haveRendered`

      var mergedMotion = this.getMotion(mode, visible);
      this.haveRendered = true;
      this.haveOpened = this.haveOpened || visible || forceSubMenuRender; // never rendered not planning to, don't render

      if (!this.haveOpened) {
        return /*#__PURE__*/external_window_React_["createElement"]("div", null);
      }

      var sharedClassName = classnames_default()("".concat(baseProps.prefixCls, "-sub"), Object(defineProperty["a" /* default */])({}, "".concat(baseProps.prefixCls, "-rtl"), direction === 'rtl'));

      if (!this.isInlineMode()) {
        return this.renderPopupMenu(sharedClassName);
      }

      return /*#__PURE__*/external_window_React_["createElement"](rc_motion_es, Object(esm_extends["a" /* default */])({
        visible: baseProps.visible,
        forceRender: forceSubMenuRender
      }, mergedMotion), function (_ref) {
        var className = _ref.className,
            style = _ref.style;
        var mergedClassName = classnames_default()(sharedClassName, className);
        return _this3.renderPopupMenu(mergedClassName, style);
      });
    }
  }, {
    key: "render",
    value: function render() {
      var _classNames2, _props$parentMenu, _classNames3;

      var props = Object(objectSpread2["a" /* default */])({}, this.props);

      var visible = this.getVisible();
      var prefixCls = this.getPrefixCls();
      var inline = this.isInlineMode();
      var mergedMode = this.getMode();
      var className = classnames_default()(prefixCls, "".concat(prefixCls, "-").concat(mergedMode), (_classNames2 = {}, Object(defineProperty["a" /* default */])(_classNames2, props.className, !!props.className), Object(defineProperty["a" /* default */])(_classNames2, this.getOpenClassName(), visible), Object(defineProperty["a" /* default */])(_classNames2, this.getActiveClassName(), props.active || visible && !inline), Object(defineProperty["a" /* default */])(_classNames2, this.getDisabledClassName(), props.disabled), Object(defineProperty["a" /* default */])(_classNames2, this.getSelectedClassName(), this.isChildrenSelected()), _classNames2));

      if (!this.internalMenuId) {
        if (props.eventKey) {
          this.internalMenuId = "".concat(props.eventKey, "$Menu");
        } else {
          guid += 1;
          this.internalMenuId = "$__$".concat(guid, "$Menu");
        }
      }

      var mouseEvents = {};
      var titleClickEvents = {};
      var titleMouseEvents = {};

      if (!props.disabled) {
        mouseEvents = {
          onMouseLeave: this.onMouseLeave,
          onMouseEnter: this.onMouseEnter
        }; // only works in title, not outer li

        titleClickEvents = {
          onClick: this.onTitleClick
        };
        titleMouseEvents = {
          onMouseEnter: this.onTitleMouseEnter,
          onMouseLeave: this.onTitleMouseLeave
        };
      }

      var style = {};
      var direction = props.direction;
      var isRTL = direction === 'rtl';

      if (inline) {
        if (isRTL) {
          style.paddingRight = props.inlineIndent * props.level;
        } else {
          style.paddingLeft = props.inlineIndent * props.level;
        }
      }

      var ariaOwns = {}; // only set aria-owns when menu is open
      // otherwise it would be an invalid aria-owns value
      // since corresponding node cannot be found

      if (this.getVisible()) {
        ariaOwns = {
          'aria-owns': this.internalMenuId
        };
      } // expand custom icon should NOT be displayed in menu with horizontal mode.


      var icon = null;

      if (mergedMode !== 'horizontal') {
        icon = this.props.expandIcon; // ReactNode

        if (typeof this.props.expandIcon === 'function') {
          icon = /*#__PURE__*/external_window_React_["createElement"](this.props.expandIcon, Object(objectSpread2["a" /* default */])({}, this.props));
        }
      }

      var title = /*#__PURE__*/external_window_React_["createElement"]("div", Object(esm_extends["a" /* default */])({
        ref: this.saveSubMenuTitle,
        style: style,
        className: "".concat(prefixCls, "-title"),
        role: "button"
      }, titleMouseEvents, titleClickEvents, {
        "aria-expanded": visible
      }, ariaOwns, {
        "aria-haspopup": "true",
        title: typeof props.title === 'string' ? props.title : undefined
      }), props.title, icon || /*#__PURE__*/external_window_React_["createElement"]("i", {
        className: "".concat(prefixCls, "-arrow")
      }));
      var children = this.renderChildren();
      var getPopupContainer = ((_props$parentMenu = props.parentMenu) === null || _props$parentMenu === void 0 ? void 0 : _props$parentMenu.isRootMenu) ? props.parentMenu.props.getPopupContainer : function (triggerNode) {
        return triggerNode.parentNode;
      };
      var popupPlacement = popupPlacementMap[mergedMode];
      var popupAlign = props.popupOffset ? {
        offset: props.popupOffset
      } : {};
      var popupClassName = classnames_default()((_classNames3 = {}, Object(defineProperty["a" /* default */])(_classNames3, props.popupClassName, props.popupClassName && !inline), Object(defineProperty["a" /* default */])(_classNames3, "".concat(prefixCls, "-rtl"), isRTL), _classNames3));
      var disabled = props.disabled,
          triggerSubMenuAction = props.triggerSubMenuAction,
          subMenuOpenDelay = props.subMenuOpenDelay,
          forceSubMenuRender = props.forceSubMenuRender,
          subMenuCloseDelay = props.subMenuCloseDelay,
          builtinPlacements = props.builtinPlacements;
      menuAllProps.forEach(function (key) {
        return delete props[key];
      }); // Set onClick to null, to ignore propagated onClick event

      delete props.onClick;
      var placement = isRTL ? Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, placementsRtl), builtinPlacements) : Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, placements), builtinPlacements);
      delete props.direction; // [Legacy] It's a fast fix,
      // but we should check if we can refactor this to make code more easy to understand

      var baseProps = this.getBaseProps();
      var mergedMotion = inline ? null : this.getMotion(baseProps.mode, baseProps.visible);
      return /*#__PURE__*/external_window_React_["createElement"]("li", Object(esm_extends["a" /* default */])({}, props, mouseEvents, {
        className: className,
        role: "menuitem"
      }), /*#__PURE__*/external_window_React_["createElement"](rc_trigger_es, {
        prefixCls: prefixCls,
        popupClassName: classnames_default()("".concat(prefixCls, "-popup"), popupClassName),
        getPopupContainer: getPopupContainer,
        builtinPlacements: placement,
        popupPlacement: popupPlacement,
        popupVisible: inline ? false : visible,
        popupAlign: popupAlign,
        popup: inline ? null : children,
        action: disabled || inline ? [] : [triggerSubMenuAction],
        mouseEnterDelay: subMenuOpenDelay,
        mouseLeaveDelay: subMenuCloseDelay,
        onPopupVisibleChange: this.onPopupVisibleChange,
        forceRender: forceSubMenuRender,
        popupMotion: mergedMotion
      }, title), inline ? children : null);
    }
  }]);

  return SubMenu;
}(external_window_React_["Component"]);
SubMenu_SubMenu.defaultProps = {
  onMouseEnter: noop,
  onMouseLeave: noop,
  onTitleMouseEnter: noop,
  onTitleMouseLeave: noop,
  onTitleClick: noop,
  manualRef: noop,
  mode: 'vertical',
  title: ''
};
var connected = Object(esm["b" /* connect */])(function (_ref2, _ref3) {
  var openKeys = _ref2.openKeys,
      activeKey = _ref2.activeKey,
      selectedKeys = _ref2.selectedKeys;
  var eventKey = _ref3.eventKey,
      subMenuKey = _ref3.subMenuKey;
  return {
    isOpen: openKeys.indexOf(eventKey) > -1,
    active: activeKey[subMenuKey] === eventKey,
    selectedKeys: selectedKeys
  };
})(SubMenu_SubMenu);
connected.isSubMenu = true;
/* harmony default export */ var es_SubMenu = (connected);
// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-menu/es/DOMWrap.js












var MENUITEM_OVERFLOWED_CLASSNAME = 'menuitem-overflowed';
var FLOAT_PRECISION_ADJUST = 0.5;

var DOMWrap_DOMWrap = /*#__PURE__*/function (_React$Component) {
  Object(inherits["a" /* default */])(DOMWrap, _React$Component);

  var _super = Object(createSuper["a" /* default */])(DOMWrap);

  function DOMWrap() {
    var _this;

    Object(classCallCheck["a" /* default */])(this, DOMWrap);

    _this = _super.apply(this, arguments);
    _this.resizeObserver = null;
    _this.mutationObserver = null; // original scroll size of the list

    _this.originalTotalWidth = 0; // copy of overflowed items

    _this.overflowedItems = []; // cache item of the original items (so we can track the size and order)

    _this.menuItemSizes = [];
    _this.cancelFrameId = null;
    _this.state = {
      lastVisibleIndex: undefined
    };
    _this.childRef = /*#__PURE__*/external_window_React_["createRef"](); // get all valid menuItem nodes

    _this.getMenuItemNodes = function () {
      var prefixCls = _this.props.prefixCls;
      var ul = _this.childRef.current;

      if (!ul) {
        return [];
      } // filter out all overflowed indicator placeholder


      return [].slice.call(ul.children).filter(function (node) {
        return node.className.split(' ').indexOf("".concat(prefixCls, "-overflowed-submenu")) < 0;
      });
    };

    _this.getOverflowedSubMenuItem = function (keyPrefix, overflowedItems, renderPlaceholder) {
      var _this$props = _this.props,
          overflowedIndicator = _this$props.overflowedIndicator,
          level = _this$props.level,
          mode = _this$props.mode,
          prefixCls = _this$props.prefixCls,
          theme = _this$props.theme;

      if (level !== 1 || mode !== 'horizontal') {
        return null;
      } // put all the overflowed item inside a submenu
      // with a title of overflow indicator ('...')


      var copy = _this.props.children[0];

      var _copy$props = copy.props,
          throwAway = _copy$props.children,
          title = _copy$props.title,
          propStyle = _copy$props.style,
          rest = Object(objectWithoutProperties["a" /* default */])(_copy$props, ["children", "title", "style"]);

      var style = Object(objectSpread2["a" /* default */])({}, propStyle);

      var key = "".concat(keyPrefix, "-overflowed-indicator");
      var eventKey = "".concat(keyPrefix, "-overflowed-indicator");

      if (overflowedItems.length === 0 && renderPlaceholder !== true) {
        style = Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, style), {}, {
          display: 'none'
        });
      } else if (renderPlaceholder) {
        style = Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, style), {}, {
          visibility: 'hidden',
          // prevent from taking normal dom space
          position: 'absolute'
        });
        key = "".concat(key, "-placeholder");
        eventKey = "".concat(eventKey, "-placeholder");
      }

      var popupClassName = theme ? "".concat(prefixCls, "-").concat(theme) : '';
      var props = {};
      menuAllProps.forEach(function (k) {
        if (rest[k] !== undefined) {
          props[k] = rest[k];
        }
      });
      return /*#__PURE__*/external_window_React_["createElement"](es_SubMenu, Object(esm_extends["a" /* default */])({
        title: overflowedIndicator,
        className: "".concat(prefixCls, "-overflowed-submenu"),
        popupClassName: popupClassName
      }, props, {
        key: key,
        eventKey: eventKey,
        disabled: false,
        style: style
      }), overflowedItems);
    }; // memorize rendered menuSize


    _this.setChildrenWidthAndResize = function () {
      if (_this.props.mode !== 'horizontal') {
        return;
      }

      var ul = _this.childRef.current;

      if (!ul) {
        return;
      }

      var ulChildrenNodes = ul.children;

      if (!ulChildrenNodes || ulChildrenNodes.length === 0) {
        return;
      }

      var lastOverflowedIndicatorPlaceholder = ul.children[ulChildrenNodes.length - 1]; // need last overflowed indicator for calculating length;

      util_setStyle(lastOverflowedIndicatorPlaceholder, 'display', 'inline-block');

      var menuItemNodes = _this.getMenuItemNodes(); // reset display attribute for all hidden elements caused by overflow to calculate updated width
      // and then reset to original state after width calculation


      var overflowedItems = menuItemNodes.filter(function (c) {
        return c.className.split(' ').indexOf(MENUITEM_OVERFLOWED_CLASSNAME) >= 0;
      });
      overflowedItems.forEach(function (c) {
        util_setStyle(c, 'display', 'inline-block');
      });
      _this.menuItemSizes = menuItemNodes.map(function (c) {
        return getWidth(c, true);
      });
      overflowedItems.forEach(function (c) {
        util_setStyle(c, 'display', 'none');
      });
      _this.overflowedIndicatorWidth = getWidth(ul.children[ul.children.length - 1], true);
      _this.originalTotalWidth = _this.menuItemSizes.reduce(function (acc, cur) {
        return acc + cur;
      }, 0);

      _this.handleResize(); // prevent the overflowed indicator from taking space;


      util_setStyle(lastOverflowedIndicatorPlaceholder, 'display', 'none');
    };

    _this.handleResize = function () {
      if (_this.props.mode !== 'horizontal') {
        return;
      }

      var ul = _this.childRef.current;

      if (!ul) {
        return;
      }

      var width = getWidth(ul);
      _this.overflowedItems = [];
      var currentSumWidth = 0; // index for last visible child in horizontal mode

      var lastVisibleIndex; // float number comparison could be problematic
      // e.g. 0.1 + 0.2 > 0.3 =====> true
      // thus using FLOAT_PRECISION_ADJUST as buffer to help the situation

      if (_this.originalTotalWidth > width + FLOAT_PRECISION_ADJUST) {
        lastVisibleIndex = -1;

        _this.menuItemSizes.forEach(function (liWidth) {
          currentSumWidth += liWidth;

          if (currentSumWidth + _this.overflowedIndicatorWidth <= width) {
            lastVisibleIndex += 1;
          }
        });
      }

      _this.setState({
        lastVisibleIndex: lastVisibleIndex
      });
    };

    return _this;
  }

  Object(createClass["a" /* default */])(DOMWrap, [{
    key: "componentDidMount",
    value: function componentDidMount() {
      var _this2 = this;

      this.setChildrenWidthAndResize();

      if (this.props.level === 1 && this.props.mode === 'horizontal') {
        var menuUl = this.childRef.current;

        if (!menuUl) {
          return;
        }

        this.resizeObserver = new ResizeObserver_es["default"](function (entries) {
          entries.forEach(function () {
            var cancelFrameId = _this2.cancelFrameId;
            cancelAnimationFrame(cancelFrameId);
            _this2.cancelFrameId = requestAnimationFrame(_this2.setChildrenWidthAndResize);
          });
        });
        [].slice.call(menuUl.children).concat(menuUl).forEach(function (el) {
          _this2.resizeObserver.observe(el);
        });

        if (typeof MutationObserver !== 'undefined') {
          this.mutationObserver = new MutationObserver(function () {
            _this2.resizeObserver.disconnect();

            [].slice.call(menuUl.children).concat(menuUl).forEach(function (el) {
              _this2.resizeObserver.observe(el);
            });

            _this2.setChildrenWidthAndResize();
          });
          this.mutationObserver.observe(menuUl, {
            attributes: false,
            childList: true,
            subTree: false
          });
        }
      }
    }
  }, {
    key: "componentWillUnmount",
    value: function componentWillUnmount() {
      if (this.resizeObserver) {
        this.resizeObserver.disconnect();
      }

      if (this.mutationObserver) {
        this.mutationObserver.disconnect();
      }

      cancelAnimationFrame(this.cancelFrameId);
    }
  }, {
    key: "renderChildren",
    value: function renderChildren(children) {
      var _this3 = this;

      // need to take care of overflowed items in horizontal mode
      var lastVisibleIndex = this.state.lastVisibleIndex;
      return (children || []).reduce(function (acc, childNode, index) {
        var item = childNode;

        if (_this3.props.mode === 'horizontal') {
          var overflowed = _this3.getOverflowedSubMenuItem(childNode.props.eventKey, []);

          if (lastVisibleIndex !== undefined && _this3.props.className.indexOf("".concat(_this3.props.prefixCls, "-root")) !== -1) {
            if (index > lastVisibleIndex) {
              item = /*#__PURE__*/external_window_React_["cloneElement"](childNode, // 这里修改 eventKey 是为了防止隐藏状态下还会触发 openkeys 事件
              {
                style: {
                  display: 'none'
                },
                eventKey: "".concat(childNode.props.eventKey, "-hidden"),

                /**
                 * Legacy code. Here `className` never used:
                 * https://github.com/react-component/menu/commit/4cd6b49fce9d116726f4ea00dda85325d6f26500#diff-e2fa48f75c2dd2318295cde428556a76R240
                 */
                className: "".concat(MENUITEM_OVERFLOWED_CLASSNAME)
              });
            }

            if (index === lastVisibleIndex + 1) {
              _this3.overflowedItems = children.slice(lastVisibleIndex + 1).map(function (c) {
                return /*#__PURE__*/external_window_React_["cloneElement"](c, // children[index].key will become '.$key' in clone by default,
                // we have to overwrite with the correct key explicitly
                {
                  key: c.props.eventKey,
                  mode: 'vertical-left'
                });
              });
              overflowed = _this3.getOverflowedSubMenuItem(childNode.props.eventKey, _this3.overflowedItems);
            }
          }

          var ret = [].concat(Object(toConsumableArray["a" /* default */])(acc), [overflowed, item]);

          if (index === children.length - 1) {
            // need a placeholder for calculating overflowed indicator width
            ret.push(_this3.getOverflowedSubMenuItem(childNode.props.eventKey, [], true));
          }

          return ret;
        }

        return [].concat(Object(toConsumableArray["a" /* default */])(acc), [item]);
      }, []);
    }
  }, {
    key: "render",
    value: function render() {
      var _this$props2 = this.props,
          visible = _this$props2.visible,
          prefixCls = _this$props2.prefixCls,
          overflowedIndicator = _this$props2.overflowedIndicator,
          mode = _this$props2.mode,
          level = _this$props2.level,
          tag = _this$props2.tag,
          children = _this$props2.children,
          theme = _this$props2.theme,
          rest = Object(objectWithoutProperties["a" /* default */])(_this$props2, ["visible", "prefixCls", "overflowedIndicator", "mode", "level", "tag", "children", "theme"]);

      var Tag = tag;
      return /*#__PURE__*/external_window_React_["createElement"](Tag, Object(esm_extends["a" /* default */])({
        ref: this.childRef
      }, rest), this.renderChildren(children));
    }
  }]);

  return DOMWrap;
}(external_window_React_["Component"]);

DOMWrap_DOMWrap.defaultProps = {
  tag: 'div',
  className: ''
};
/* harmony default export */ var es_DOMWrap = (DOMWrap_DOMWrap);
// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-menu/es/SubPopupMenu.js


















function allDisabled(arr) {
  if (!arr.length) {
    return true;
  }

  return arr.every(function (c) {
    return !!c.props.disabled;
  });
}

function updateActiveKey(store, menuId, activeKey) {
  var state = store.getState();
  store.setState({
    activeKey: Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, state.activeKey), {}, Object(defineProperty["a" /* default */])({}, menuId, activeKey))
  });
}

function getEventKey(props) {
  // when eventKey not available ,it's menu and return menu id '0-menu-'
  return props.eventKey || '0-menu-';
}

function getActiveKey(props, originalActiveKey) {
  var activeKey = originalActiveKey;
  var children = props.children,
      eventKey = props.eventKey;

  if (activeKey) {
    var found;
    loopMenuItem(children, function (c, i) {
      if (c && c.props && !c.props.disabled && activeKey === getKeyFromChildrenIndex(c, eventKey, i)) {
        found = true;
      }
    });

    if (found) {
      return activeKey;
    }
  }

  activeKey = null;

  if (props.defaultActiveFirst) {
    loopMenuItem(children, function (c, i) {
      if (!activeKey && c && !c.props.disabled) {
        activeKey = getKeyFromChildrenIndex(c, eventKey, i);
      }
    });
    return activeKey;
  }

  return activeKey;
}
function saveRef(c) {
  if (!c) {
    return;
  }
  /* eslint-disable @typescript-eslint/no-invalid-this */


  var index = this.instanceArray.indexOf(c);

  if (index !== -1) {
    // update component if it's already inside instanceArray
    this.instanceArray[index] = c;
  } else {
    // add component if it's not in instanceArray yet;
    this.instanceArray.push(c);
  }
  /* eslint-enable @typescript-eslint/no-invalid-this */

}
var SubPopupMenu_SubPopupMenu = /*#__PURE__*/function (_React$Component) {
  Object(inherits["a" /* default */])(SubPopupMenu, _React$Component);

  var _super = Object(createSuper["a" /* default */])(SubPopupMenu);

  function SubPopupMenu(props) {
    var _this;

    Object(classCallCheck["a" /* default */])(this, SubPopupMenu);

    _this = _super.call(this, props);
    /**
     * all keyboard events callbacks run from here at first
     *
     * note:
     *  This legacy code that `onKeyDown` is called by parent instead of dom self.
     *  which need return code to check if this event is handled
     */

    _this.onKeyDown = function (e, callback) {
      var keyCode = e.keyCode;
      var handled;

      _this.getFlatInstanceArray().forEach(function (obj) {
        if (obj && obj.props.active && obj.onKeyDown) {
          handled = obj.onKeyDown(e);
        }
      });

      if (handled) {
        return 1;
      }

      var activeItem = null;

      if (keyCode === KeyCode["a" /* default */].UP || keyCode === KeyCode["a" /* default */].DOWN) {
        activeItem = _this.step(keyCode === KeyCode["a" /* default */].UP ? -1 : 1);
      }

      if (activeItem) {
        e.preventDefault();
        updateActiveKey(_this.props.store, getEventKey(_this.props), activeItem.props.eventKey);

        if (typeof callback === 'function') {
          callback(activeItem);
        }

        return 1;
      }

      return undefined;
    };

    _this.onItemHover = function (e) {
      var key = e.key,
          hover = e.hover;
      updateActiveKey(_this.props.store, getEventKey(_this.props), hover ? key : null);
    };

    _this.onDeselect = function (selectInfo) {
      _this.props.onDeselect(selectInfo);
    };

    _this.onSelect = function (selectInfo) {
      _this.props.onSelect(selectInfo);
    };

    _this.onClick = function (e) {
      _this.props.onClick(e);
    };

    _this.onOpenChange = function (e) {
      _this.props.onOpenChange(e);
    };

    _this.onDestroy = function (key) {
      /* istanbul ignore next */
      _this.props.onDestroy(key);
    };

    _this.getFlatInstanceArray = function () {
      return _this.instanceArray;
    };

    _this.step = function (direction) {
      var children = _this.getFlatInstanceArray();

      var activeKey = _this.props.store.getState().activeKey[getEventKey(_this.props)];

      var len = children.length;

      if (!len) {
        return null;
      }

      if (direction < 0) {
        children = children.concat().reverse();
      } // find current activeIndex


      var activeIndex = -1;
      children.every(function (c, ci) {
        if (c && c.props.eventKey === activeKey) {
          activeIndex = ci;
          return false;
        }

        return true;
      });

      if (!_this.props.defaultActiveFirst && activeIndex !== -1 && allDisabled(children.slice(activeIndex, len - 1))) {
        return undefined;
      }

      var start = (activeIndex + 1) % len;
      var i = start;

      do {
        var child = children[i];

        if (!child || child.props.disabled) {
          i = (i + 1) % len;
        } else {
          return child;
        }
      } while (i !== start);

      return null;
    };

    _this.renderCommonMenuItem = function (child, i, extraProps) {
      var state = _this.props.store.getState();

      var _assertThisInitialize = Object(assertThisInitialized["a" /* default */])(_this),
          props = _assertThisInitialize.props;

      var key = getKeyFromChildrenIndex(child, props.eventKey, i);
      var childProps = child.props; // https://github.com/ant-design/ant-design/issues/11517#issuecomment-477403055

      if (!childProps || typeof child.type === 'string') {
        return child;
      }

      var isActive = key === state.activeKey;

      var newChildProps = Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({
        mode: childProps.mode || props.mode,
        level: props.level,
        inlineIndent: props.inlineIndent,
        renderMenuItem: _this.renderMenuItem,
        rootPrefixCls: props.prefixCls,
        index: i,
        parentMenu: props.parentMenu,
        // customized ref function, need to be invoked manually in child's componentDidMount
        manualRef: childProps.disabled ? undefined : Object(createChainedFunction["a" /* default */])(child.ref, saveRef.bind(Object(assertThisInitialized["a" /* default */])(_this))),
        eventKey: key,
        active: !childProps.disabled && isActive,
        multiple: props.multiple,
        onClick: function onClick(e) {
          (childProps.onClick || noop)(e);

          _this.onClick(e);
        },
        onItemHover: _this.onItemHover,
        motion: props.motion,
        subMenuOpenDelay: props.subMenuOpenDelay,
        subMenuCloseDelay: props.subMenuCloseDelay,
        forceSubMenuRender: props.forceSubMenuRender,
        onOpenChange: _this.onOpenChange,
        onDeselect: _this.onDeselect,
        onSelect: _this.onSelect,
        builtinPlacements: props.builtinPlacements,
        itemIcon: childProps.itemIcon || _this.props.itemIcon,
        expandIcon: childProps.expandIcon || _this.props.expandIcon
      }, extraProps), {}, {
        direction: props.direction
      }); // ref: https://github.com/ant-design/ant-design/issues/13943


      if (props.mode === 'inline' || util_isMobileDevice()) {
        newChildProps.triggerSubMenuAction = 'click';
      }

      return /*#__PURE__*/external_window_React_["cloneElement"](child, Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, newChildProps), {}, {
        key: key || i
      }));
    };

    _this.renderMenuItem = function (c, i, subMenuKey) {
      /* istanbul ignore if */
      if (!c) {
        return null;
      }

      var state = _this.props.store.getState();

      var extraProps = {
        openKeys: state.openKeys,
        selectedKeys: state.selectedKeys,
        triggerSubMenuAction: _this.props.triggerSubMenuAction,
        subMenuKey: subMenuKey
      };
      return _this.renderCommonMenuItem(c, i, extraProps);
    };

    props.store.setState({
      activeKey: Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, props.store.getState().activeKey), {}, Object(defineProperty["a" /* default */])({}, props.eventKey, getActiveKey(props, props.activeKey)))
    });
    _this.instanceArray = [];
    return _this;
  }

  Object(createClass["a" /* default */])(SubPopupMenu, [{
    key: "componentDidMount",
    value: function componentDidMount() {
      // invoke customized ref to expose component to mixin
      if (this.props.manualRef) {
        this.props.manualRef(this);
      }
    }
  }, {
    key: "shouldComponentUpdate",
    value: function shouldComponentUpdate(nextProps) {
      return this.props.visible || nextProps.visible || this.props.className !== nextProps.className || !shallowequal_default()(this.props.style, nextProps.style);
    }
  }, {
    key: "componentDidUpdate",
    value: function componentDidUpdate(prevProps) {
      var props = this.props;
      var originalActiveKey = 'activeKey' in props ? props.activeKey : props.store.getState().activeKey[getEventKey(props)];
      var activeKey = getActiveKey(props, originalActiveKey);

      if (activeKey !== originalActiveKey) {
        updateActiveKey(props.store, getEventKey(props), activeKey);
      } else if ('activeKey' in prevProps) {
        // If prev activeKey is not same as current activeKey,
        // we should set it.
        var prevActiveKey = getActiveKey(prevProps, prevProps.activeKey);

        if (activeKey !== prevActiveKey) {
          updateActiveKey(props.store, getEventKey(props), activeKey);
        }
      }
    }
  }, {
    key: "render",
    value: function render() {
      var _this2 = this;

      var props = Object(esm_extends["a" /* default */])({}, this.props);

      this.instanceArray = [];
      var className = classnames_default()(props.prefixCls, props.className, "".concat(props.prefixCls, "-").concat(props.mode));
      var domProps = {
        className: className,
        // role could be 'select' and by default set to menu
        role: props.role || 'menu'
      };

      if (props.id) {
        domProps.id = props.id;
      }

      if (props.focusable) {
        domProps.tabIndex = 0;
        domProps.onKeyDown = this.onKeyDown;
      }

      var prefixCls = props.prefixCls,
          eventKey = props.eventKey,
          visible = props.visible,
          level = props.level,
          mode = props.mode,
          overflowedIndicator = props.overflowedIndicator,
          theme = props.theme;
      menuAllProps.forEach(function (key) {
        return delete props[key];
      }); // Otherwise, the propagated click event will trigger another onClick

      delete props.onClick;
      return /*#__PURE__*/external_window_React_["createElement"](es_DOMWrap, Object(esm_extends["a" /* default */])({}, props, {
        prefixCls: prefixCls,
        mode: mode,
        tag: "ul",
        level: level,
        theme: theme,
        visible: visible,
        overflowedIndicator: overflowedIndicator
      }, domProps), Object(toArray["a" /* default */])(props.children).map(function (c, i) {
        return _this2.renderMenuItem(c, i, eventKey || '0-menu-');
      }));
    }
  }]);

  return SubPopupMenu;
}(external_window_React_["Component"]);
SubPopupMenu_SubPopupMenu.defaultProps = {
  prefixCls: 'rc-menu',
  className: '',
  mode: 'vertical',
  level: 1,
  inlineIndent: 24,
  visible: true,
  focusable: true,
  style: {},
  manualRef: noop
};
var SubPopupMenu_connected = Object(esm["b" /* connect */])()(SubPopupMenu_SubPopupMenu);
/* harmony default export */ var es_SubPopupMenu = (SubPopupMenu_connected);
// EXTERNAL MODULE: ./node_modules/rc-util/es/warning.js
var warning = __webpack_require__("Kwbf");

// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-menu/es/utils/legacyUtil.js


function legacyUtil_getMotion(_ref, _ref2, menuMode) {
  var prefixCls = _ref.prefixCls,
      motion = _ref.motion,
      _ref$defaultMotions = _ref.defaultMotions,
      defaultMotions = _ref$defaultMotions === void 0 ? {} : _ref$defaultMotions,
      openAnimation = _ref.openAnimation,
      openTransitionName = _ref.openTransitionName;
  var switchingModeFromInline = _ref2.switchingModeFromInline;

  if (motion) {
    return motion;
  }

  if (Object(esm_typeof["a" /* default */])(openAnimation) === 'object' && openAnimation) {
    Object(warning["a" /* default */])(false, 'Object type of `openAnimation` is removed. Please use `motion` instead.');
  } else if (typeof openAnimation === 'string') {
    return {
      motionName: "".concat(prefixCls, "-open-").concat(openAnimation)
    };
  }

  if (openTransitionName) {
    return {
      motionName: openTransitionName
    };
  } // Default logic


  var defaultMotion = defaultMotions[menuMode];

  if (defaultMotion) {
    return defaultMotion;
  } // When mode switch from inline
  // submenu should hide without animation


  return switchingModeFromInline ? null : defaultMotions.other;
}
// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-menu/es/Menu.js














var Menu_Menu = /*#__PURE__*/function (_React$Component) {
  Object(inherits["a" /* default */])(Menu, _React$Component);

  var _super = Object(createSuper["a" /* default */])(Menu);

  function Menu(props) {
    var _this;

    Object(classCallCheck["a" /* default */])(this, Menu);

    _this = _super.call(this, props);

    _this.onSelect = function (selectInfo) {
      var _assertThisInitialize = Object(assertThisInitialized["a" /* default */])(_this),
          props = _assertThisInitialize.props;

      if (props.selectable) {
        // root menu
        var _this$store$getState = _this.store.getState(),
            _selectedKeys = _this$store$getState.selectedKeys;

        var selectedKey = selectInfo.key;

        if (props.multiple) {
          _selectedKeys = _selectedKeys.concat([selectedKey]);
        } else {
          _selectedKeys = [selectedKey];
        }

        if (!('selectedKeys' in props)) {
          _this.store.setState({
            selectedKeys: _selectedKeys
          });
        }

        props.onSelect(Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, selectInfo), {}, {
          selectedKeys: _selectedKeys
        }));
      }
    };

    _this.onClick = function (e) {
      var mode = _this.getRealMenuMode();

      var _assertThisInitialize2 = Object(assertThisInitialized["a" /* default */])(_this),
          store = _assertThisInitialize2.store,
          onOpenChange = _assertThisInitialize2.props.onOpenChange;

      if (mode !== 'inline' && !('openKeys' in _this.props)) {
        // closing vertical popup submenu after click it
        store.setState({
          openKeys: []
        });
        onOpenChange([]);
      }

      _this.props.onClick(e);
    }; // onKeyDown needs to be exposed as a instance method
    // e.g., in rc-select, we need to navigate menu item while
    // current active item is rc-select input box rather than the menu itself


    _this.onKeyDown = function (e, callback) {
      _this.innerMenu.getWrappedInstance().onKeyDown(e, callback);
    };

    _this.onOpenChange = function (event) {
      var _assertThisInitialize3 = Object(assertThisInitialized["a" /* default */])(_this),
          props = _assertThisInitialize3.props;

      var openKeys = _this.store.getState().openKeys.concat();

      var changed = false;

      var processSingle = function processSingle(e) {
        var oneChanged = false;

        if (e.open) {
          oneChanged = openKeys.indexOf(e.key) === -1;

          if (oneChanged) {
            openKeys.push(e.key);
          }
        } else {
          var index = openKeys.indexOf(e.key);
          oneChanged = index !== -1;

          if (oneChanged) {
            openKeys.splice(index, 1);
          }
        }

        changed = changed || oneChanged;
      };

      if (Array.isArray(event)) {
        // batch change call
        event.forEach(processSingle);
      } else {
        processSingle(event);
      }

      if (changed) {
        if (!('openKeys' in _this.props)) {
          _this.store.setState({
            openKeys: openKeys
          });
        }

        props.onOpenChange(openKeys);
      }
    };

    _this.onDeselect = function (selectInfo) {
      var _assertThisInitialize4 = Object(assertThisInitialized["a" /* default */])(_this),
          props = _assertThisInitialize4.props;

      if (props.selectable) {
        var _selectedKeys2 = _this.store.getState().selectedKeys.concat();

        var selectedKey = selectInfo.key;

        var index = _selectedKeys2.indexOf(selectedKey);

        if (index !== -1) {
          _selectedKeys2.splice(index, 1);
        }

        if (!('selectedKeys' in props)) {
          _this.store.setState({
            selectedKeys: _selectedKeys2
          });
        }

        props.onDeselect(Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, selectInfo), {}, {
          selectedKeys: _selectedKeys2
        }));
      }
    }; // Restore vertical mode when menu is collapsed responsively when mounted
    // https://github.com/ant-design/ant-design/issues/13104
    // TODO: not a perfect solution,
    // looking a new way to avoid setting switchingModeFromInline in this situation


    _this.onMouseEnter = function (e) {
      _this.restoreModeVerticalFromInline();

      var onMouseEnter = _this.props.onMouseEnter;

      if (onMouseEnter) {
        onMouseEnter(e);
      }
    };

    _this.onTransitionEnd = function (e) {
      // when inlineCollapsed menu width animation finished
      // https://github.com/ant-design/ant-design/issues/12864
      var widthCollapsed = e.propertyName === 'width' && e.target === e.currentTarget; // Fix SVGElement e.target.className.indexOf is not a function
      // https://github.com/ant-design/ant-design/issues/15699

      var className = e.target.className; // SVGAnimatedString.animVal should be identical to SVGAnimatedString.baseVal,
      // unless during an animation.

      var classNameValue = Object.prototype.toString.call(className) === '[object SVGAnimatedString]' ? className.animVal : className; // Fix for <Menu style={{ width: '100%' }} />,
      // the width transition won't trigger when menu is collapsed
      // https://github.com/ant-design/ant-design-pro/issues/2783

      var iconScaled = e.propertyName === 'font-size' && classNameValue.indexOf('anticon') >= 0;

      if (widthCollapsed || iconScaled) {
        _this.restoreModeVerticalFromInline();
      }
    };

    _this.setInnerMenu = function (node) {
      _this.innerMenu = node;
    };

    _this.isRootMenu = true;
    var selectedKeys = props.defaultSelectedKeys;
    var openKeys = props.defaultOpenKeys;

    if ('selectedKeys' in props) {
      selectedKeys = props.selectedKeys || [];
    }

    if ('openKeys' in props) {
      openKeys = props.openKeys || [];
    }

    _this.store = Object(esm["c" /* create */])({
      selectedKeys: selectedKeys,
      openKeys: openKeys,
      activeKey: {
        '0-menu-': getActiveKey(props, props.activeKey)
      }
    });
    _this.state = {
      switchingModeFromInline: false,
      prevProps: props,
      inlineOpenKeys: [],
      store: _this.store
    };
    return _this;
  }

  Object(createClass["a" /* default */])(Menu, [{
    key: "componentDidMount",
    value: function componentDidMount() {
      this.updateMiniStore();
      this.updateMenuDisplay();
    }
  }, {
    key: "componentDidUpdate",
    value: function componentDidUpdate(prevProps) {
      var _this$props = this.props,
          siderCollapsed = _this$props.siderCollapsed,
          inlineCollapsed = _this$props.inlineCollapsed,
          onOpenChange = _this$props.onOpenChange;

      if (!prevProps.inlineCollapsed && inlineCollapsed || !prevProps.siderCollapsed && siderCollapsed) {
        onOpenChange([]);
      }

      this.updateMiniStore();
      this.updateMenuDisplay();
    }
  }, {
    key: "updateMenuDisplay",
    value: function updateMenuDisplay() {
      var collapsedWidth = this.props.collapsedWidth,
          store = this.store,
          prevOpenKeys = this.prevOpenKeys; // https://github.com/ant-design/ant-design/issues/8587

      var hideMenu = this.getInlineCollapsed() && (collapsedWidth === 0 || collapsedWidth === '0' || collapsedWidth === '0px');

      if (hideMenu) {
        this.prevOpenKeys = store.getState().openKeys.concat();
        this.store.setState({
          openKeys: []
        });
      } else if (prevOpenKeys) {
        this.store.setState({
          openKeys: prevOpenKeys
        });
        this.prevOpenKeys = null;
      }
    }
  }, {
    key: "getRealMenuMode",
    value: function getRealMenuMode() {
      var mode = this.props.mode;
      var switchingModeFromInline = this.state.switchingModeFromInline;
      var inlineCollapsed = this.getInlineCollapsed();

      if (switchingModeFromInline && inlineCollapsed) {
        return 'inline';
      }

      return inlineCollapsed ? 'vertical' : mode;
    }
  }, {
    key: "getInlineCollapsed",
    value: function getInlineCollapsed() {
      var _this$props2 = this.props,
          inlineCollapsed = _this$props2.inlineCollapsed,
          siderCollapsed = _this$props2.siderCollapsed;

      if (siderCollapsed !== undefined) {
        return siderCollapsed;
      }

      return inlineCollapsed;
    }
  }, {
    key: "restoreModeVerticalFromInline",
    value: function restoreModeVerticalFromInline() {
      var switchingModeFromInline = this.state.switchingModeFromInline;

      if (switchingModeFromInline) {
        this.setState({
          switchingModeFromInline: false
        });
      }
    }
  }, {
    key: "updateMiniStore",
    value: function updateMiniStore() {
      if ('selectedKeys' in this.props) {
        this.store.setState({
          selectedKeys: this.props.selectedKeys || []
        });
      }

      if ('openKeys' in this.props) {
        this.store.setState({
          openKeys: this.props.openKeys || []
        });
      }
    }
  }, {
    key: "render",
    value: function render() {
      var props = Object(objectSpread2["a" /* default */])({}, Object(omit["a" /* default */])(this.props, ['collapsedWidth', 'siderCollapsed', 'defaultMotions']));

      var mode = this.getRealMenuMode();
      props.className += " ".concat(props.prefixCls, "-root");

      if (props.direction === 'rtl') {
        props.className += " ".concat(props.prefixCls, "-rtl");
      }

      props = Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, props), {}, {
        mode: mode,
        onClick: this.onClick,
        onOpenChange: this.onOpenChange,
        onDeselect: this.onDeselect,
        onSelect: this.onSelect,
        onMouseEnter: this.onMouseEnter,
        onTransitionEnd: this.onTransitionEnd,
        parentMenu: this,
        motion: legacyUtil_getMotion(this.props, this.state, mode)
      });
      delete props.openAnimation;
      delete props.openTransitionName;
      return /*#__PURE__*/external_window_React_["createElement"](esm["a" /* Provider */], {
        store: this.store
      }, /*#__PURE__*/external_window_React_["createElement"](es_SubPopupMenu, Object(esm_extends["a" /* default */])({}, props, {
        ref: this.setInnerMenu
      }), this.props.children));
    }
  }], [{
    key: "getDerivedStateFromProps",
    value: function getDerivedStateFromProps(nextProps, prevState) {
      var prevProps = prevState.prevProps,
          store = prevState.store;
      var prevStoreState = store.getState();
      var newStoreState = {};
      var newState = {
        prevProps: nextProps
      };

      if (prevProps.mode === 'inline' && nextProps.mode !== 'inline') {
        newState.switchingModeFromInline = true;
      }

      if ('openKeys' in nextProps) {
        newStoreState.openKeys = nextProps.openKeys || [];
      } else {
        // [Legacy] Old code will return after `openKeys` changed.
        // Not sure the reason, we should keep this logic still.
        if (nextProps.inlineCollapsed && !prevProps.inlineCollapsed || nextProps.siderCollapsed && !prevProps.siderCollapsed) {
          newState.switchingModeFromInline = true;
          newState.inlineOpenKeys = prevStoreState.openKeys;
          newStoreState.openKeys = [];
        }

        if (!nextProps.inlineCollapsed && prevProps.inlineCollapsed || !nextProps.siderCollapsed && prevProps.siderCollapsed) {
          newStoreState.openKeys = prevState.inlineOpenKeys;
          newState.inlineOpenKeys = [];
        }
      }

      if (Object.keys(newStoreState).length) {
        store.setState(newStoreState);
      }

      return newState;
    }
  }]);

  return Menu;
}(external_window_React_["Component"]);

Menu_Menu.defaultProps = {
  selectable: true,
  onClick: noop,
  onSelect: noop,
  onOpenChange: noop,
  onDeselect: noop,
  defaultSelectedKeys: [],
  defaultOpenKeys: [],
  subMenuOpenDelay: 0.1,
  subMenuCloseDelay: 0.1,
  triggerSubMenuAction: 'hover',
  prefixCls: 'rc-menu',
  className: '',
  mode: 'vertical',
  style: {},
  builtinPlacements: {},
  overflowedIndicator: /*#__PURE__*/external_window_React_["createElement"]("span", null, "\xB7\xB7\xB7")
};
/* harmony default export */ var es_Menu = (Menu_Menu);
// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-menu/es/MenuItem.js














var MenuItem_MenuItem = /*#__PURE__*/function (_React$Component) {
  Object(inherits["a" /* default */])(MenuItem, _React$Component);

  var _super = Object(createSuper["a" /* default */])(MenuItem);

  function MenuItem() {
    var _this;

    Object(classCallCheck["a" /* default */])(this, MenuItem);

    _this = _super.apply(this, arguments);

    _this.onKeyDown = function (e) {
      var keyCode = e.keyCode;

      if (keyCode === KeyCode["a" /* default */].ENTER) {
        _this.onClick(e);

        return true;
      }

      return undefined;
    };

    _this.onMouseLeave = function (e) {
      var _this$props = _this.props,
          eventKey = _this$props.eventKey,
          onItemHover = _this$props.onItemHover,
          onMouseLeave = _this$props.onMouseLeave;
      onItemHover({
        key: eventKey,
        hover: false
      });
      onMouseLeave({
        key: eventKey,
        domEvent: e
      });
    };

    _this.onMouseEnter = function (e) {
      var _this$props2 = _this.props,
          eventKey = _this$props2.eventKey,
          onItemHover = _this$props2.onItemHover,
          onMouseEnter = _this$props2.onMouseEnter;
      onItemHover({
        key: eventKey,
        hover: true
      });
      onMouseEnter({
        key: eventKey,
        domEvent: e
      });
    };

    _this.onClick = function (e) {
      var _this$props3 = _this.props,
          eventKey = _this$props3.eventKey,
          multiple = _this$props3.multiple,
          onClick = _this$props3.onClick,
          onSelect = _this$props3.onSelect,
          onDeselect = _this$props3.onDeselect,
          isSelected = _this$props3.isSelected;
      var info = {
        key: eventKey,
        keyPath: [eventKey],
        item: Object(assertThisInitialized["a" /* default */])(_this),
        domEvent: e
      };
      onClick(info);

      if (multiple) {
        if (isSelected) {
          onDeselect(info);
        } else {
          onSelect(info);
        }
      } else if (!isSelected) {
        onSelect(info);
      }
    };

    _this.saveNode = function (node) {
      _this.node = node;
    };

    return _this;
  }

  Object(createClass["a" /* default */])(MenuItem, [{
    key: "componentDidMount",
    value: function componentDidMount() {
      // invoke customized ref to expose component to mixin
      this.callRef();
    }
  }, {
    key: "componentDidUpdate",
    value: function componentDidUpdate() {
      this.callRef();
    }
  }, {
    key: "componentWillUnmount",
    value: function componentWillUnmount() {
      var props = this.props;

      if (props.onDestroy) {
        props.onDestroy(props.eventKey);
      }
    }
  }, {
    key: "getPrefixCls",
    value: function getPrefixCls() {
      return "".concat(this.props.rootPrefixCls, "-item");
    }
  }, {
    key: "getActiveClassName",
    value: function getActiveClassName() {
      return "".concat(this.getPrefixCls(), "-active");
    }
  }, {
    key: "getSelectedClassName",
    value: function getSelectedClassName() {
      return "".concat(this.getPrefixCls(), "-selected");
    }
  }, {
    key: "getDisabledClassName",
    value: function getDisabledClassName() {
      return "".concat(this.getPrefixCls(), "-disabled");
    }
  }, {
    key: "callRef",
    value: function callRef() {
      if (this.props.manualRef) {
        this.props.manualRef(this);
      }
    }
  }, {
    key: "render",
    value: function render() {
      var _classNames;

      var props = Object(objectSpread2["a" /* default */])({}, this.props);

      var className = classnames_default()(this.getPrefixCls(), props.className, (_classNames = {}, Object(defineProperty["a" /* default */])(_classNames, this.getActiveClassName(), !props.disabled && props.active), Object(defineProperty["a" /* default */])(_classNames, this.getSelectedClassName(), props.isSelected), Object(defineProperty["a" /* default */])(_classNames, this.getDisabledClassName(), props.disabled), _classNames));

      var attrs = Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, props.attribute), {}, {
        title: typeof props.title === 'string' ? props.title : undefined,
        className: className,
        // set to menuitem by default
        role: props.role || 'menuitem',
        'aria-disabled': props.disabled
      });

      if (props.role === 'option') {
        // overwrite to option
        attrs = Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, attrs), {}, {
          role: 'option',
          'aria-selected': props.isSelected
        });
      } else if (props.role === null || props.role === 'none') {
        // sometimes we want to specify role inside <li/> element
        // <li><a role='menuitem'>Link</a></li> would be a good example
        // in this case the role on <li/> should be "none" to
        // remove the implied listitem role.
        // https://www.w3.org/TR/wai-aria-practices-1.1/examples/menubar/menubar-1/menubar-1.html
        attrs.role = 'none';
      } // In case that onClick/onMouseLeave/onMouseEnter is passed down from owner


      var mouseEvent = {
        onClick: props.disabled ? null : this.onClick,
        onMouseLeave: props.disabled ? null : this.onMouseLeave,
        onMouseEnter: props.disabled ? null : this.onMouseEnter
      };

      var style = Object(objectSpread2["a" /* default */])({}, props.style);

      if (props.mode === 'inline') {
        if (props.direction === 'rtl') {
          style.paddingRight = props.inlineIndent * props.level;
        } else {
          style.paddingLeft = props.inlineIndent * props.level;
        }
      }

      menuAllProps.forEach(function (key) {
        return delete props[key];
      });
      delete props.direction;
      var icon = this.props.itemIcon;

      if (typeof this.props.itemIcon === 'function') {
        // TODO: This is a bug which should fixed after TS refactor
        icon = /*#__PURE__*/external_window_React_["createElement"](this.props.itemIcon, this.props);
      }

      return /*#__PURE__*/external_window_React_["createElement"]("li", Object(esm_extends["a" /* default */])({}, Object(omit["a" /* default */])(props, ['onClick', 'onMouseEnter', 'onMouseLeave', 'onSelect']), attrs, mouseEvent, {
        style: style,
        ref: this.saveNode
      }), props.children, icon);
    }
  }]);

  return MenuItem;
}(external_window_React_["Component"]);
MenuItem_MenuItem.isMenuItem = true;
MenuItem_MenuItem.defaultProps = {
  onSelect: noop,
  onMouseEnter: noop,
  onMouseLeave: noop,
  manualRef: noop
};
var MenuItem_connected = Object(esm["b" /* connect */])(function (_ref, _ref2) {
  var activeKey = _ref.activeKey,
      selectedKeys = _ref.selectedKeys;
  var eventKey = _ref2.eventKey,
      subMenuKey = _ref2.subMenuKey;
  return {
    active: activeKey[subMenuKey] === eventKey,
    // selectedKeys should be array in any circumstance
    // when it is not, we have fallback logic for https://github.com/ant-design/ant-design/issues/29430
    isSelected: Array.isArray(selectedKeys) ? selectedKeys.indexOf(eventKey) !== -1 : selectedKeys === eventKey
  };
})(MenuItem_MenuItem);
/* harmony default export */ var es_MenuItem = (MenuItem_connected);
// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-menu/es/MenuItemGroup.js








var MenuItemGroup_MenuItemGroup = /*#__PURE__*/function (_React$Component) {
  Object(inherits["a" /* default */])(MenuItemGroup, _React$Component);

  var _super = Object(createSuper["a" /* default */])(MenuItemGroup);

  function MenuItemGroup() {
    var _this;

    Object(classCallCheck["a" /* default */])(this, MenuItemGroup);

    _this = _super.apply(this, arguments);

    _this.renderInnerMenuItem = function (item) {
      var _this$props = _this.props,
          renderMenuItem = _this$props.renderMenuItem,
          index = _this$props.index;
      return renderMenuItem(item, index, _this.props.subMenuKey);
    };

    return _this;
  }

  Object(createClass["a" /* default */])(MenuItemGroup, [{
    key: "render",
    value: function render() {
      var props = Object(esm_extends["a" /* default */])({}, this.props);

      var _props$className = props.className,
          className = _props$className === void 0 ? '' : _props$className,
          rootPrefixCls = props.rootPrefixCls;
      var titleClassName = "".concat(rootPrefixCls, "-item-group-title");
      var listClassName = "".concat(rootPrefixCls, "-item-group-list");
      var title = props.title,
          children = props.children;
      menuAllProps.forEach(function (key) {
        return delete props[key];
      });
      delete props.direction;
      return /*#__PURE__*/external_window_React_["createElement"]("li", Object(esm_extends["a" /* default */])({}, props, {
        onClick: function onClick(e) {
          return e.stopPropagation();
        },
        className: "".concat(className, " ").concat(rootPrefixCls, "-item-group")
      }), /*#__PURE__*/external_window_React_["createElement"]("div", {
        className: titleClassName,
        title: typeof title === 'string' ? title : undefined
      }, title), /*#__PURE__*/external_window_React_["createElement"]("ul", {
        className: listClassName
      }, external_window_React_["Children"].map(children, this.renderInnerMenuItem)));
    }
  }]);

  return MenuItemGroup;
}(external_window_React_["Component"]);

MenuItemGroup_MenuItemGroup.isMenuItemGroup = true;
MenuItemGroup_MenuItemGroup.defaultProps = {
  disabled: true
};
/* harmony default export */ var es_MenuItemGroup = (MenuItemGroup_MenuItemGroup);
// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-menu/es/Divider.js


var Divider_Divider = function Divider(_ref) {
  var className = _ref.className,
      rootPrefixCls = _ref.rootPrefixCls,
      style = _ref.style;
  return /*#__PURE__*/external_window_React_["createElement"]("li", {
    className: "".concat(className, " ").concat(rootPrefixCls, "-item-divider"),
    style: style
  });
};

Divider_Divider.defaultProps = {
  // To fix keyboard UX.
  disabled: true,
  className: '',
  style: {}
};
/* harmony default export */ var es_Divider = (Divider_Divider);
// CONCATENATED MODULE: ./node_modules/rc-tabs/node_modules/rc-menu/es/index.js






/* harmony default export */ var rc_menu_es = (es_Menu);
// EXTERNAL MODULE: ./node_modules/rc-dropdown/es/index.js + 2 modules
var rc_dropdown_es = __webpack_require__("eDIo");

// CONCATENATED MODULE: ./node_modules/rc-tabs/es/TabNavList/AddButton.js


function AddButton(_ref, ref) {
  var prefixCls = _ref.prefixCls,
      editable = _ref.editable,
      locale = _ref.locale,
      style = _ref.style;

  if (!editable || editable.showAdd === false) {
    return null;
  }

  return external_window_React_["createElement"]("button", {
    ref: ref,
    type: "button",
    className: "".concat(prefixCls, "-nav-add"),
    style: style,
    "aria-label": (locale === null || locale === void 0 ? void 0 : locale.addAriaLabel) || 'Add tab',
    onClick: function onClick(event) {
      editable.onEdit('add', {
        event: event
      });
    }
  }, editable.addIcon || '+');
}

/* harmony default export */ var TabNavList_AddButton = (external_window_React_["forwardRef"](AddButton));
// CONCATENATED MODULE: ./node_modules/rc-tabs/es/TabNavList/OperationNode.js










function OperationNode(_ref, ref) {
  var prefixCls = _ref.prefixCls,
      id = _ref.id,
      tabs = _ref.tabs,
      locale = _ref.locale,
      mobile = _ref.mobile,
      _ref$moreIcon = _ref.moreIcon,
      moreIcon = _ref$moreIcon === void 0 ? 'More' : _ref$moreIcon,
      moreTransitionName = _ref.moreTransitionName,
      style = _ref.style,
      className = _ref.className,
      editable = _ref.editable,
      tabBarGutter = _ref.tabBarGutter,
      rtl = _ref.rtl,
      onTabClick = _ref.onTabClick;

  // ======================== Dropdown ========================
  var _useState = Object(external_window_React_["useState"])(false),
      _useState2 = Object(slicedToArray["a" /* default */])(_useState, 2),
      open = _useState2[0],
      setOpen = _useState2[1];

  var _useState3 = Object(external_window_React_["useState"])(null),
      _useState4 = Object(slicedToArray["a" /* default */])(_useState3, 2),
      selectedKey = _useState4[0],
      setSelectedKey = _useState4[1];

  var popupId = "".concat(id, "-more-popup");
  var dropdownPrefix = "".concat(prefixCls, "-dropdown");
  var selectedItemId = selectedKey !== null ? "".concat(popupId, "-").concat(selectedKey) : null;
  var dropdownAriaLabel = locale === null || locale === void 0 ? void 0 : locale.dropdownAriaLabel;
  var menu = external_window_React_["createElement"](rc_menu_es, {
    onClick: function onClick(_ref2) {
      var key = _ref2.key,
          domEvent = _ref2.domEvent;
      onTabClick(key, domEvent);
      setOpen(false);
    },
    id: popupId,
    tabIndex: -1,
    role: "listbox",
    "aria-activedescendant": selectedItemId,
    selectedKeys: [selectedKey],
    "aria-label": dropdownAriaLabel !== undefined ? dropdownAriaLabel : 'expanded dropdown'
  }, tabs.map(function (tab) {
    return external_window_React_["createElement"](es_MenuItem, {
      key: tab.key,
      id: "".concat(popupId, "-").concat(tab.key),
      role: "option",
      "aria-controls": id && "".concat(id, "-panel-").concat(tab.key),
      disabled: tab.disabled
    }, tab.tab);
  }));

  function selectOffset(offset) {
    var enabledTabs = tabs.filter(function (tab) {
      return !tab.disabled;
    });
    var selectedIndex = enabledTabs.findIndex(function (tab) {
      return tab.key === selectedKey;
    }) || 0;
    var len = enabledTabs.length;

    for (var i = 0; i < len; i += 1) {
      selectedIndex = (selectedIndex + offset + len) % len;
      var tab = enabledTabs[selectedIndex];

      if (!tab.disabled) {
        setSelectedKey(tab.key);
        return;
      }
    }
  }

  function onKeyDown(e) {
    var which = e.which;

    if (!open) {
      if ([KeyCode["a" /* default */].DOWN, KeyCode["a" /* default */].SPACE, KeyCode["a" /* default */].ENTER].includes(which)) {
        setOpen(true);
        e.preventDefault();
      }

      return;
    }

    switch (which) {
      case KeyCode["a" /* default */].UP:
        selectOffset(-1);
        e.preventDefault();
        break;

      case KeyCode["a" /* default */].DOWN:
        selectOffset(1);
        e.preventDefault();
        break;

      case KeyCode["a" /* default */].ESC:
        setOpen(false);
        break;

      case KeyCode["a" /* default */].SPACE:
      case KeyCode["a" /* default */].ENTER:
        if (selectedKey !== null) onTabClick(selectedKey, e);
        break;
    }
  } // ========================= Effect =========================


  Object(external_window_React_["useEffect"])(function () {
    // We use query element here to avoid React strict warning
    var ele = document.getElementById(selectedItemId);

    if (ele && ele.scrollIntoView) {
      ele.scrollIntoView(false);
    }
  }, [selectedKey]);
  Object(external_window_React_["useEffect"])(function () {
    if (!open) {
      setSelectedKey(null);
    }
  }, [open]); // ========================= Render =========================

  var moreStyle = Object(defineProperty["a" /* default */])({}, rtl ? 'marginLeft' : 'marginRight', tabBarGutter);

  if (!tabs.length) {
    moreStyle.visibility = 'hidden';
    moreStyle.order = 1;
  }

  var overlayClassName = classnames_default()(Object(defineProperty["a" /* default */])({}, "".concat(dropdownPrefix, "-rtl"), rtl));
  var moreNode = mobile ? null : external_window_React_["createElement"](rc_dropdown_es["a" /* default */], {
    prefixCls: dropdownPrefix,
    overlay: menu,
    trigger: ['hover'],
    visible: open,
    transitionName: moreTransitionName,
    onVisibleChange: setOpen,
    overlayClassName: overlayClassName,
    mouseEnterDelay: 0.1,
    mouseLeaveDelay: 0.1
  }, external_window_React_["createElement"]("button", {
    type: "button",
    className: "".concat(prefixCls, "-nav-more"),
    style: moreStyle,
    tabIndex: -1,
    "aria-hidden": "true",
    "aria-haspopup": "listbox",
    "aria-controls": popupId,
    id: "".concat(id, "-more"),
    "aria-expanded": open,
    onKeyDown: onKeyDown
  }, moreIcon));
  return external_window_React_["createElement"]("div", {
    className: classnames_default()("".concat(prefixCls, "-nav-operations"), className),
    style: style,
    ref: ref
  }, moreNode, external_window_React_["createElement"](TabNavList_AddButton, {
    prefixCls: prefixCls,
    locale: locale,
    editable: editable
  }));
}

/* harmony default export */ var TabNavList_OperationNode = (external_window_React_["forwardRef"](OperationNode));
// CONCATENATED MODULE: ./node_modules/rc-tabs/es/TabContext.js

/* harmony default export */ var TabContext = (Object(external_window_React_["createContext"])(null));
// CONCATENATED MODULE: ./node_modules/rc-tabs/es/hooks/useTouchMove.js



var MIN_SWIPE_DISTANCE = 0.1;
var STOP_SWIPE_DISTANCE = 0.01;
var REFRESH_INTERVAL = 20;
var SPEED_OFF_MULTIPLE = Math.pow(0.995, REFRESH_INTERVAL); // ========================= Check if is a mobile =========================

function useTouchMove_isMobile() {
  var agent = navigator.userAgent || navigator.vendor || window.opera;

  if (/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino|android|ipad|playbook|silk/i.test(agent) || /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw-(n|u)|c55\/|capi|ccwa|cdm-|cell|chtm|cldc|cmd-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc-s|devi|dica|dmob|do(c|p)o|ds(12|-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(-|_)|g1 u|g560|gene|gf-5|g-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd-(m|p|t)|hei-|hi(pt|ta)|hp( i|ip)|hs-c|ht(c(-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i-(20|go|ma)|i230|iac( |-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|-[a-w])|libw|lynx|m1-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|-([1-8]|c))|phil|pire|pl(ay|uc)|pn-2|po(ck|rt|se)|prox|psio|pt-g|qa-a|qc(07|12|21|32|60|-[2-7]|i-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h-|oo|p-)|sdk\/|se(c(-|0|1)|47|mc|nd|ri)|sgh-|shar|sie(-|m)|sk-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h-|v-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl-|tdg-|tel(i|m)|tim-|t-mo|to(pl|sh)|ts(70|m-|m3|m5)|tx-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas-|your|zeto|zte-/i.test(agent.substr(0, 4))) {
    return true;
  }

  return false;
} // ================================= Hook =================================

function useTouchMove(ref, onOffset) {
  var _useState = Object(external_window_React_["useState"])(),
      _useState2 = Object(slicedToArray["a" /* default */])(_useState, 2),
      touchPosition = _useState2[0],
      setTouchPosition = _useState2[1];

  var _useState3 = Object(external_window_React_["useState"])(0),
      _useState4 = Object(slicedToArray["a" /* default */])(_useState3, 2),
      lastTimestamp = _useState4[0],
      setLastTimestamp = _useState4[1];

  var _useState5 = Object(external_window_React_["useState"])(0),
      _useState6 = Object(slicedToArray["a" /* default */])(_useState5, 2),
      lastTimeDiff = _useState6[0],
      setLastTimeDiff = _useState6[1];

  var _useState7 = Object(external_window_React_["useState"])(),
      _useState8 = Object(slicedToArray["a" /* default */])(_useState7, 2),
      lastOffset = _useState8[0],
      setLastOffset = _useState8[1];

  var motionRef = Object(external_window_React_["useRef"])(); // ========================= Events =========================
  // >>> Touch events

  function onTouchStart(e) {
    var _e$touches$ = e.touches[0],
        screenX = _e$touches$.screenX,
        screenY = _e$touches$.screenY;
    setTouchPosition({
      x: screenX,
      y: screenY
    });
    window.clearInterval(motionRef.current);
  }

  function onTouchMove(e) {
    if (!touchPosition) return;
    e.preventDefault();
    var _e$touches$2 = e.touches[0],
        screenX = _e$touches$2.screenX,
        screenY = _e$touches$2.screenY;
    setTouchPosition({
      x: screenX,
      y: screenY
    });
    var offsetX = screenX - touchPosition.x;
    var offsetY = screenY - touchPosition.y;
    onOffset(offsetX, offsetY);
    var now = Date.now();
    setLastTimestamp(now);
    setLastTimeDiff(now - lastTimestamp);
    setLastOffset({
      x: offsetX,
      y: offsetY
    });
  }

  function onTouchEnd() {
    if (!touchPosition) return;
    setTouchPosition(null);
    setLastOffset(null); // Swipe if needed

    if (lastOffset) {
      var distanceX = lastOffset.x / lastTimeDiff;
      var distanceY = lastOffset.y / lastTimeDiff;
      var absX = Math.abs(distanceX);
      var absY = Math.abs(distanceY); // Skip swipe if low distance

      if (Math.max(absX, absY) < MIN_SWIPE_DISTANCE) return;
      var currentX = distanceX;
      var currentY = distanceY;
      motionRef.current = window.setInterval(function () {
        if (Math.abs(currentX) < STOP_SWIPE_DISTANCE && Math.abs(currentY) < STOP_SWIPE_DISTANCE) {
          window.clearInterval(motionRef.current);
          return;
        }

        currentX *= SPEED_OFF_MULTIPLE;
        currentY *= SPEED_OFF_MULTIPLE;
        onOffset(currentX * REFRESH_INTERVAL, currentY * REFRESH_INTERVAL);
      }, REFRESH_INTERVAL);
    }
  } // >>> Wheel event


  var lastWheelTimestampRef = Object(external_window_React_["useRef"])(0);
  var lastWheelPreventRef = Object(external_window_React_["useRef"])(false);
  var lastWheelDirectionRef = Object(external_window_React_["useRef"])();

  function onWheel(e) {
    var deltaX = e.deltaX,
        deltaY = e.deltaY; // Convert both to x & y since wheel only happened on PC

    var mixed = 0;
    var absX = Math.abs(deltaX);
    var absY = Math.abs(deltaY);

    if (absX === absY) {
      mixed = lastWheelDirectionRef.current === 'x' ? deltaX : deltaY;
    } else if (absX > absY) {
      mixed = deltaX;
      lastWheelDirectionRef.current = 'x';
    } else {
      mixed = deltaY;
      lastWheelDirectionRef.current = 'y';
    } // Optimize mac touch scroll


    var now = Date.now();

    if (now - lastWheelTimestampRef.current > 100) {
      lastWheelPreventRef.current = false;
    }

    if (onOffset(-mixed, -mixed) || lastWheelPreventRef.current) {
      e.preventDefault();
      lastWheelPreventRef.current = true;
    }

    lastWheelTimestampRef.current = now;
  } // ========================= Effect =========================


  var touchEventsRef = Object(external_window_React_["useRef"])(null);
  touchEventsRef.current = {
    onTouchStart: onTouchStart,
    onTouchMove: onTouchMove,
    onTouchEnd: onTouchEnd,
    onWheel: onWheel
  };
  external_window_React_["useEffect"](function () {
    function onProxyTouchStart(e) {
      touchEventsRef.current.onTouchStart(e);
    }

    function onProxyTouchMove(e) {
      touchEventsRef.current.onTouchMove(e);
    }

    function onProxyTouchEnd(e) {
      touchEventsRef.current.onTouchEnd(e);
    }

    function onProxyWheel(e) {
      touchEventsRef.current.onWheel(e);
    }

    document.addEventListener('touchmove', onProxyTouchMove, {
      passive: false
    });
    document.addEventListener('touchend', onProxyTouchEnd, {
      passive: false
    }); // No need to clean up since element removed

    ref.current.addEventListener('touchstart', onProxyTouchStart, {
      passive: false
    });
    ref.current.addEventListener('wheel', onProxyWheel);
    return function () {
      document.removeEventListener('touchmove', onProxyTouchMove);
      document.removeEventListener('touchend', onProxyTouchEnd);
    };
  }, []);
}
// CONCATENATED MODULE: ./node_modules/rc-tabs/es/hooks/useRefs.js


function useRefs() {
  var cacheRefs = Object(external_window_React_["useRef"])(new Map());

  function getRef(key) {
    if (!cacheRefs.current.has(key)) {
      cacheRefs.current.set(key, external_window_React_["createRef"]());
    }

    return cacheRefs.current.get(key);
  }

  function removeRef(key) {
    cacheRefs.current.delete(key);
  }

  return [getRef, removeRef];
}
// CONCATENATED MODULE: ./node_modules/rc-tabs/es/hooks/useSyncState.js


function useSyncState(defaultState, onChange) {
  var stateRef = external_window_React_["useRef"](defaultState);

  var _React$useState = external_window_React_["useState"]({}),
      _React$useState2 = Object(slicedToArray["a" /* default */])(_React$useState, 2),
      forceUpdate = _React$useState2[1];

  function setState(updater) {
    var newValue = typeof updater === 'function' ? updater(stateRef.current) : updater;

    if (newValue !== stateRef.current) {
      onChange(newValue, stateRef.current);
    }

    stateRef.current = newValue;
    forceUpdate({});
  }

  return [stateRef.current, setState];
}
// CONCATENATED MODULE: ./node_modules/rc-tabs/es/TabNavList/index.js




















var TabNavList_ExtraContent = function ExtraContent(_ref) {
  var position = _ref.position,
      prefixCls = _ref.prefixCls,
      extra = _ref.extra;
  if (!extra) return null;
  var content;
  var assertExtra = extra;

  if (position === 'right') {
    content = assertExtra.right || !assertExtra.left && assertExtra || null;
  }

  if (position === 'left') {
    content = assertExtra.left || null;
  }

  return content ? external_window_React_["createElement"]("div", {
    className: "".concat(prefixCls, "-extra-content")
  }, content) : null;
};

function TabNavList(props, ref) {
  var _classNames;

  var _React$useContext = external_window_React_["useContext"](TabContext),
      prefixCls = _React$useContext.prefixCls,
      tabs = _React$useContext.tabs;

  var className = props.className,
      style = props.style,
      id = props.id,
      animated = props.animated,
      activeKey = props.activeKey,
      rtl = props.rtl,
      extra = props.extra,
      editable = props.editable,
      locale = props.locale,
      tabPosition = props.tabPosition,
      tabBarGutter = props.tabBarGutter,
      children = props.children,
      onTabClick = props.onTabClick,
      onTabScroll = props.onTabScroll;
  var tabsWrapperRef = Object(external_window_React_["useRef"])();
  var tabListRef = Object(external_window_React_["useRef"])();
  var operationsRef = Object(external_window_React_["useRef"])();
  var innerAddButtonRef = Object(external_window_React_["useRef"])();

  var _useRefs = useRefs(),
      _useRefs2 = Object(slicedToArray["a" /* default */])(_useRefs, 2),
      getBtnRef = _useRefs2[0],
      removeBtnRef = _useRefs2[1];

  var tabPositionTopOrBottom = tabPosition === 'top' || tabPosition === 'bottom';

  var _useSyncState = useSyncState(0, function (next, prev) {
    if (tabPositionTopOrBottom && onTabScroll) {
      onTabScroll({
        direction: next > prev ? 'left' : 'right'
      });
    }
  }),
      _useSyncState2 = Object(slicedToArray["a" /* default */])(_useSyncState, 2),
      transformLeft = _useSyncState2[0],
      setTransformLeft = _useSyncState2[1];

  var _useSyncState3 = useSyncState(0, function (next, prev) {
    if (!tabPositionTopOrBottom && onTabScroll) {
      onTabScroll({
        direction: next > prev ? 'top' : 'bottom'
      });
    }
  }),
      _useSyncState4 = Object(slicedToArray["a" /* default */])(_useSyncState3, 2),
      transformTop = _useSyncState4[0],
      setTransformTop = _useSyncState4[1];

  var _useState = Object(external_window_React_["useState"])(0),
      _useState2 = Object(slicedToArray["a" /* default */])(_useState, 2),
      wrapperScrollWidth = _useState2[0],
      setWrapperScrollWidth = _useState2[1];

  var _useState3 = Object(external_window_React_["useState"])(0),
      _useState4 = Object(slicedToArray["a" /* default */])(_useState3, 2),
      wrapperScrollHeight = _useState4[0],
      setWrapperScrollHeight = _useState4[1];

  var _useState5 = Object(external_window_React_["useState"])(0),
      _useState6 = Object(slicedToArray["a" /* default */])(_useState5, 2),
      wrapperContentWidth = _useState6[0],
      setWrapperContentWidth = _useState6[1];

  var _useState7 = Object(external_window_React_["useState"])(0),
      _useState8 = Object(slicedToArray["a" /* default */])(_useState7, 2),
      wrapperContentHeight = _useState8[0],
      setWrapperContentHeight = _useState8[1];

  var _useState9 = Object(external_window_React_["useState"])(null),
      _useState10 = Object(slicedToArray["a" /* default */])(_useState9, 2),
      wrapperWidth = _useState10[0],
      setWrapperWidth = _useState10[1];

  var _useState11 = Object(external_window_React_["useState"])(null),
      _useState12 = Object(slicedToArray["a" /* default */])(_useState11, 2),
      wrapperHeight = _useState12[0],
      setWrapperHeight = _useState12[1];

  var _useState13 = Object(external_window_React_["useState"])(0),
      _useState14 = Object(slicedToArray["a" /* default */])(_useState13, 2),
      addWidth = _useState14[0],
      setAddWidth = _useState14[1];

  var _useState15 = Object(external_window_React_["useState"])(0),
      _useState16 = Object(slicedToArray["a" /* default */])(_useState15, 2),
      addHeight = _useState16[0],
      setAddHeight = _useState16[1];

  var _useRafState = useRafState(new Map()),
      _useRafState2 = Object(slicedToArray["a" /* default */])(_useRafState, 2),
      tabSizes = _useRafState2[0],
      setTabSizes = _useRafState2[1];

  var tabOffsets = useOffsets(tabs, tabSizes, wrapperScrollWidth); // ========================== Util =========================

  var operationsHiddenClassName = "".concat(prefixCls, "-nav-operations-hidden");
  var transformMin = 0;
  var transformMax = 0;

  if (!tabPositionTopOrBottom) {
    transformMin = Math.min(0, wrapperHeight - wrapperScrollHeight);
    transformMax = 0;
  } else if (rtl) {
    transformMin = 0;
    transformMax = Math.max(0, wrapperScrollWidth - wrapperWidth);
  } else {
    transformMin = Math.min(0, wrapperWidth - wrapperScrollWidth);
    transformMax = 0;
  }

  function alignInRange(value) {
    if (value < transformMin) {
      return [transformMin, false];
    }

    if (value > transformMax) {
      return [transformMax, false];
    }

    return [value, true];
  } // ========================= Mobile ========================


  var touchMovingRef = Object(external_window_React_["useRef"])();

  var _useState17 = Object(external_window_React_["useState"])(),
      _useState18 = Object(slicedToArray["a" /* default */])(_useState17, 2),
      lockAnimation = _useState18[0],
      setLockAnimation = _useState18[1];

  function doLockAnimation() {
    setLockAnimation(Date.now());
  }

  function clearTouchMoving() {
    window.clearTimeout(touchMovingRef.current);
  }

  useTouchMove(tabsWrapperRef, function (offsetX, offsetY) {
    var preventDefault = false;

    function doMove(setState, offset) {
      setState(function (value) {
        var _alignInRange = alignInRange(value + offset),
            _alignInRange2 = Object(slicedToArray["a" /* default */])(_alignInRange, 2),
            newValue = _alignInRange2[0],
            needPrevent = _alignInRange2[1];

        preventDefault = needPrevent;
        return newValue;
      });
    }

    if (tabPositionTopOrBottom) {
      // Skip scroll if place is enough
      if (wrapperWidth >= wrapperScrollWidth) {
        return preventDefault;
      }

      doMove(setTransformLeft, offsetX);
    } else {
      if (wrapperHeight >= wrapperScrollHeight) {
        return preventDefault;
      }

      doMove(setTransformTop, offsetY);
    }

    clearTouchMoving();
    doLockAnimation();
    return preventDefault;
  });
  Object(external_window_React_["useEffect"])(function () {
    clearTouchMoving();

    if (lockAnimation) {
      touchMovingRef.current = window.setTimeout(function () {
        setLockAnimation(0);
      }, 100);
    }

    return clearTouchMoving;
  }, [lockAnimation]); // ========================= Scroll ========================

  function scrollToTab() {
    var key = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : activeKey;
    var tabOffset = tabOffsets.get(key);
    if (!tabOffset) return;

    if (tabPositionTopOrBottom) {
      // ============ Align with top & bottom ============
      var newTransform = transformLeft; // RTL

      if (rtl) {
        if (tabOffset.right < transformLeft) {
          newTransform = tabOffset.right;
        } else if (tabOffset.right + tabOffset.width > transformLeft + wrapperWidth) {
          newTransform = tabOffset.right + tabOffset.width - wrapperWidth;
        }
      } // LTR
      else if (tabOffset.left < -transformLeft) {
          newTransform = -tabOffset.left;
        } else if (tabOffset.left + tabOffset.width > -transformLeft + wrapperWidth) {
          newTransform = -(tabOffset.left + tabOffset.width - wrapperWidth);
        }

      setTransformTop(0);
      setTransformLeft(alignInRange(newTransform)[0]);
    } else {
      // ============ Align with left & right ============
      var _newTransform = transformTop;

      if (tabOffset.top < -transformTop) {
        _newTransform = -tabOffset.top;
      } else if (tabOffset.top + tabOffset.height > -transformTop + wrapperHeight) {
        _newTransform = -(tabOffset.top + tabOffset.height - wrapperHeight);
      }

      setTransformLeft(0);
      setTransformTop(alignInRange(_newTransform)[0]);
    }
  } // ========================== Tab ==========================
  // Render tab node & collect tab offset


  var _useVisibleRange = useVisibleRange(tabOffsets, {
    width: wrapperWidth,
    height: wrapperHeight,
    left: transformLeft,
    top: transformTop
  }, {
    width: wrapperContentWidth,
    height: wrapperContentHeight
  }, {
    width: addWidth,
    height: addHeight
  }, Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, props), {}, {
    tabs: tabs
  })),
      _useVisibleRange2 = Object(slicedToArray["a" /* default */])(_useVisibleRange, 2),
      visibleStart = _useVisibleRange2[0],
      visibleEnd = _useVisibleRange2[1];

  var tabNodes = tabs.map(function (tab) {
    var key = tab.key;
    return external_window_React_["createElement"](TabNavList_TabNode, {
      id: id,
      prefixCls: prefixCls,
      key: key,
      rtl: rtl,
      tab: tab,
      closable: tab.closable,
      editable: editable,
      active: key === activeKey,
      tabPosition: tabPosition,
      tabBarGutter: tabBarGutter,
      renderWrapper: children,
      removeAriaLabel: locale === null || locale === void 0 ? void 0 : locale.removeAriaLabel,
      ref: getBtnRef(key),
      onClick: function onClick(e) {
        onTabClick(key, e);
      },
      onRemove: function onRemove() {
        removeBtnRef(key);
      },
      onFocus: function onFocus() {
        scrollToTab(key);
        doLockAnimation(); // Focus element will make scrollLeft change which we should reset back

        if (!rtl) {
          tabsWrapperRef.current.scrollLeft = 0;
        }

        tabsWrapperRef.current.scrollTop = 0;
      }
    });
  });
  var onListHolderResize = useRaf(function () {
    var _tabsWrapperRef$curre, _tabsWrapperRef$curre2, _innerAddButtonRef$cu, _innerAddButtonRef$cu2, _operationsRef$curren, _operationsRef$curren2, _tabListRef$current, _tabListRef$current2, _operationsRef$curren3;

    // Update wrapper records
    var offsetWidth = ((_tabsWrapperRef$curre = tabsWrapperRef.current) === null || _tabsWrapperRef$curre === void 0 ? void 0 : _tabsWrapperRef$curre.offsetWidth) || 0;
    var offsetHeight = ((_tabsWrapperRef$curre2 = tabsWrapperRef.current) === null || _tabsWrapperRef$curre2 === void 0 ? void 0 : _tabsWrapperRef$curre2.offsetHeight) || 0;
    var newAddWidth = ((_innerAddButtonRef$cu = innerAddButtonRef.current) === null || _innerAddButtonRef$cu === void 0 ? void 0 : _innerAddButtonRef$cu.offsetWidth) || 0;
    var newAddHeight = ((_innerAddButtonRef$cu2 = innerAddButtonRef.current) === null || _innerAddButtonRef$cu2 === void 0 ? void 0 : _innerAddButtonRef$cu2.offsetHeight) || 0;
    var newOperationWidth = ((_operationsRef$curren = operationsRef.current) === null || _operationsRef$curren === void 0 ? void 0 : _operationsRef$curren.offsetWidth) || 0;
    var newOperationHeight = ((_operationsRef$curren2 = operationsRef.current) === null || _operationsRef$curren2 === void 0 ? void 0 : _operationsRef$curren2.offsetHeight) || 0;
    setWrapperWidth(offsetWidth);
    setWrapperHeight(offsetHeight);
    setAddWidth(newAddWidth);
    setAddHeight(newAddHeight);
    var newWrapperScrollWidth = (((_tabListRef$current = tabListRef.current) === null || _tabListRef$current === void 0 ? void 0 : _tabListRef$current.offsetWidth) || 0) - newAddWidth;
    var newWrapperScrollHeight = (((_tabListRef$current2 = tabListRef.current) === null || _tabListRef$current2 === void 0 ? void 0 : _tabListRef$current2.offsetHeight) || 0) - newAddHeight;
    setWrapperScrollWidth(newWrapperScrollWidth);
    setWrapperScrollHeight(newWrapperScrollHeight);
    var isOperationHidden = (_operationsRef$curren3 = operationsRef.current) === null || _operationsRef$curren3 === void 0 ? void 0 : _operationsRef$curren3.className.includes(operationsHiddenClassName);
    setWrapperContentWidth(newWrapperScrollWidth - (isOperationHidden ? 0 : newOperationWidth));
    setWrapperContentHeight(newWrapperScrollHeight - (isOperationHidden ? 0 : newOperationHeight)); // Update buttons records

    setTabSizes(function () {
      var newSizes = new Map();
      tabs.forEach(function (_ref2) {
        var key = _ref2.key;
        var btnNode = getBtnRef(key).current;

        if (btnNode) {
          newSizes.set(key, {
            width: btnNode.offsetWidth,
            height: btnNode.offsetHeight,
            left: btnNode.offsetLeft,
            top: btnNode.offsetTop
          });
        }
      });
      return newSizes;
    });
  }); // ======================== Dropdown =======================

  var startHiddenTabs = tabs.slice(0, visibleStart);
  var endHiddenTabs = tabs.slice(visibleEnd + 1);
  var hiddenTabs = [].concat(Object(toConsumableArray["a" /* default */])(startHiddenTabs), Object(toConsumableArray["a" /* default */])(endHiddenTabs)); // =================== Link & Operations ===================

  var _useState19 = Object(external_window_React_["useState"])(),
      _useState20 = Object(slicedToArray["a" /* default */])(_useState19, 2),
      inkStyle = _useState20[0],
      setInkStyle = _useState20[1];

  var activeTabOffset = tabOffsets.get(activeKey); // Delay set ink style to avoid remove tab blink

  var inkBarRafRef = Object(external_window_React_["useRef"])();

  function cleanInkBarRaf() {
    raf_default.a.cancel(inkBarRafRef.current);
  }

  Object(external_window_React_["useEffect"])(function () {
    var newInkStyle = {};

    if (activeTabOffset) {
      if (tabPositionTopOrBottom) {
        if (rtl) {
          newInkStyle.right = activeTabOffset.right;
        } else {
          newInkStyle.left = activeTabOffset.left;
        }

        newInkStyle.width = activeTabOffset.width;
      } else {
        newInkStyle.top = activeTabOffset.top;
        newInkStyle.height = activeTabOffset.height;
      }
    }

    cleanInkBarRaf();
    inkBarRafRef.current = raf_default()(function () {
      setInkStyle(newInkStyle);
    });
    return cleanInkBarRaf;
  }, [activeTabOffset, tabPositionTopOrBottom, rtl]); // ========================= Effect ========================

  Object(external_window_React_["useEffect"])(function () {
    scrollToTab();
  }, [activeKey, activeTabOffset, tabOffsets, tabPositionTopOrBottom]); // Should recalculate when rtl changed

  Object(external_window_React_["useEffect"])(function () {
    onListHolderResize();
  }, [rtl, tabBarGutter, activeKey, tabs.map(function (tab) {
    return tab.key;
  }).join('_')]); // ========================= Render ========================

  var hasDropdown = !!hiddenTabs.length;
  var wrapPrefix = "".concat(prefixCls, "-nav-wrap");
  var pingLeft;
  var pingRight;
  var pingTop;
  var pingBottom;

  if (tabPositionTopOrBottom) {
    if (rtl) {
      pingRight = transformLeft > 0;
      pingLeft = transformLeft + wrapperWidth < wrapperScrollWidth;
    } else {
      pingLeft = transformLeft < 0;
      pingRight = -transformLeft + wrapperWidth < wrapperScrollWidth;
    }
  } else {
    pingTop = transformTop < 0;
    pingBottom = -transformTop + wrapperHeight < wrapperScrollHeight;
  }
  /* eslint-disable jsx-a11y/interactive-supports-focus */


  return external_window_React_["createElement"]("div", {
    ref: ref,
    role: "tablist",
    className: classnames_default()("".concat(prefixCls, "-nav"), className),
    style: style,
    onKeyDown: function onKeyDown() {
      // No need animation when use keyboard
      doLockAnimation();
    }
  }, external_window_React_["createElement"](TabNavList_ExtraContent, {
    position: "left",
    extra: extra,
    prefixCls: prefixCls
  }), external_window_React_["createElement"](es["a" /* default */], {
    onResize: onListHolderResize
  }, external_window_React_["createElement"]("div", {
    className: classnames_default()(wrapPrefix, (_classNames = {}, Object(defineProperty["a" /* default */])(_classNames, "".concat(wrapPrefix, "-ping-left"), pingLeft), Object(defineProperty["a" /* default */])(_classNames, "".concat(wrapPrefix, "-ping-right"), pingRight), Object(defineProperty["a" /* default */])(_classNames, "".concat(wrapPrefix, "-ping-top"), pingTop), Object(defineProperty["a" /* default */])(_classNames, "".concat(wrapPrefix, "-ping-bottom"), pingBottom), _classNames)),
    ref: tabsWrapperRef
  }, external_window_React_["createElement"](es["a" /* default */], {
    onResize: onListHolderResize
  }, external_window_React_["createElement"]("div", {
    ref: tabListRef,
    className: "".concat(prefixCls, "-nav-list"),
    style: {
      transform: "translate(".concat(transformLeft, "px, ").concat(transformTop, "px)"),
      transition: lockAnimation ? 'none' : undefined
    }
  }, tabNodes, external_window_React_["createElement"](TabNavList_AddButton, {
    ref: innerAddButtonRef,
    prefixCls: prefixCls,
    locale: locale,
    editable: editable,
    style: {
      visibility: hasDropdown ? 'hidden' : null
    }
  }), external_window_React_["createElement"]("div", {
    className: classnames_default()("".concat(prefixCls, "-ink-bar"), Object(defineProperty["a" /* default */])({}, "".concat(prefixCls, "-ink-bar-animated"), animated.inkBar)),
    style: inkStyle
  }))))), external_window_React_["createElement"](TabNavList_OperationNode, Object.assign({}, props, {
    ref: operationsRef,
    prefixCls: prefixCls,
    tabs: hiddenTabs,
    className: !hasDropdown && operationsHiddenClassName
  })), external_window_React_["createElement"](TabNavList_ExtraContent, {
    position: "right",
    extra: extra,
    prefixCls: prefixCls
  }));
  /* eslint-enable */
}

/* harmony default export */ var es_TabNavList = (external_window_React_["forwardRef"](TabNavList));
// CONCATENATED MODULE: ./node_modules/rc-tabs/es/TabPanelList/index.js




function TabPanelList(_ref) {
  var id = _ref.id,
      activeKey = _ref.activeKey,
      animated = _ref.animated,
      tabPosition = _ref.tabPosition,
      rtl = _ref.rtl,
      destroyInactiveTabPane = _ref.destroyInactiveTabPane;

  var _React$useContext = external_window_React_["useContext"](TabContext),
      prefixCls = _React$useContext.prefixCls,
      tabs = _React$useContext.tabs;

  var tabPaneAnimated = animated.tabPane;
  var activeIndex = tabs.findIndex(function (tab) {
    return tab.key === activeKey;
  });
  return external_window_React_["createElement"]("div", {
    className: classnames_default()("".concat(prefixCls, "-content-holder"))
  }, external_window_React_["createElement"]("div", {
    className: classnames_default()("".concat(prefixCls, "-content"), "".concat(prefixCls, "-content-").concat(tabPosition), Object(defineProperty["a" /* default */])({}, "".concat(prefixCls, "-content-animated"), tabPaneAnimated)),
    style: activeIndex && tabPaneAnimated ? Object(defineProperty["a" /* default */])({}, rtl ? 'marginRight' : 'marginLeft', "-".concat(activeIndex, "00%")) : null
  }, tabs.map(function (tab) {
    return external_window_React_["cloneElement"](tab.node, {
      key: tab.key,
      prefixCls: prefixCls,
      tabKey: tab.key,
      id: id,
      animated: tabPaneAnimated,
      active: tab.key === activeKey,
      destroyInactiveTabPane: destroyInactiveTabPane
    });
  })));
}
// CONCATENATED MODULE: ./node_modules/rc-tabs/es/TabPanelList/TabPane.js




function TabPane(_ref) {
  var prefixCls = _ref.prefixCls,
      forceRender = _ref.forceRender,
      className = _ref.className,
      style = _ref.style,
      id = _ref.id,
      active = _ref.active,
      animated = _ref.animated,
      destroyInactiveTabPane = _ref.destroyInactiveTabPane,
      tabKey = _ref.tabKey,
      children = _ref.children;

  var _React$useState = external_window_React_["useState"](forceRender),
      _React$useState2 = Object(slicedToArray["a" /* default */])(_React$useState, 2),
      visited = _React$useState2[0],
      setVisited = _React$useState2[1];

  external_window_React_["useEffect"](function () {
    if (active) {
      setVisited(true);
    } else if (destroyInactiveTabPane) {
      setVisited(false);
    }
  }, [active, destroyInactiveTabPane]);
  var mergedStyle = {};

  if (!active) {
    if (animated) {
      mergedStyle.visibility = 'hidden';
      mergedStyle.height = 0;
      mergedStyle.overflowY = 'hidden';
    } else {
      mergedStyle.display = 'none';
    }
  }

  return external_window_React_["createElement"]("div", {
    id: id && "".concat(id, "-panel-").concat(tabKey),
    role: "tabpanel",
    tabIndex: active ? 0 : -1,
    "aria-labelledby": id && "".concat(id, "-tab-").concat(tabKey),
    "aria-hidden": !active,
    style: Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, mergedStyle), style),
    className: classnames_default()("".concat(prefixCls, "-tabpane"), active && "".concat(prefixCls, "-tabpane-active"), className)
  }, (active || visited || forceRender) && children);
}
// CONCATENATED MODULE: ./node_modules/rc-tabs/es/Tabs.js




// Accessibility https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/Roles/Tab_Role










/**
 * Should added antd:
 * - type
 *
 * Removed:
 * - onNextClick
 * - onPrevClick
 * - keyboard
 */
// Used for accessibility

var uuid = 0;

function parseTabList(children) {
  return Object(toArray["a" /* default */])(children).map(function (node) {
    if (external_window_React_["isValidElement"](node)) {
      var key = node.key !== undefined ? String(node.key) : undefined;
      return Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({
        key: key
      }, node.props), {}, {
        node: node
      });
    }

    return null;
  }).filter(function (tab) {
    return tab;
  });
}

function Tabs(_ref, ref) {
  var _classNames;

  var id = _ref.id,
      _ref$prefixCls = _ref.prefixCls,
      prefixCls = _ref$prefixCls === void 0 ? 'rc-tabs' : _ref$prefixCls,
      className = _ref.className,
      children = _ref.children,
      direction = _ref.direction,
      activeKey = _ref.activeKey,
      defaultActiveKey = _ref.defaultActiveKey,
      editable = _ref.editable,
      animated = _ref.animated,
      _ref$tabPosition = _ref.tabPosition,
      tabPosition = _ref$tabPosition === void 0 ? 'top' : _ref$tabPosition,
      tabBarGutter = _ref.tabBarGutter,
      tabBarStyle = _ref.tabBarStyle,
      tabBarExtraContent = _ref.tabBarExtraContent,
      locale = _ref.locale,
      moreIcon = _ref.moreIcon,
      moreTransitionName = _ref.moreTransitionName,
      destroyInactiveTabPane = _ref.destroyInactiveTabPane,
      renderTabBar = _ref.renderTabBar,
      onChange = _ref.onChange,
      onTabClick = _ref.onTabClick,
      onTabScroll = _ref.onTabScroll,
      restProps = Object(objectWithoutProperties["a" /* default */])(_ref, ["id", "prefixCls", "className", "children", "direction", "activeKey", "defaultActiveKey", "editable", "animated", "tabPosition", "tabBarGutter", "tabBarStyle", "tabBarExtraContent", "locale", "moreIcon", "moreTransitionName", "destroyInactiveTabPane", "renderTabBar", "onChange", "onTabClick", "onTabScroll"]);

  var tabs = parseTabList(children);
  var rtl = direction === 'rtl';
  var mergedAnimated;

  if (animated === false) {
    mergedAnimated = {
      inkBar: false,
      tabPane: false
    };
  } else {
    mergedAnimated = Object(objectSpread2["a" /* default */])({
      inkBar: true,
      tabPane: false
    }, animated !== true ? animated : null);
  } // ======================== Mobile ========================


  var _useState = Object(external_window_React_["useState"])(false),
      _useState2 = Object(slicedToArray["a" /* default */])(_useState, 2),
      mobile = _useState2[0],
      setMobile = _useState2[1];

  Object(external_window_React_["useEffect"])(function () {
    // Only update on the client side
    setMobile(useTouchMove_isMobile());
  }, []); // ====================== Active Key ======================

  var _useMergedState = Object(useMergedState["a" /* default */])(function () {
    var _tabs$;

    return (_tabs$ = tabs[0]) === null || _tabs$ === void 0 ? void 0 : _tabs$.key;
  }, {
    value: activeKey,
    defaultValue: defaultActiveKey
  }),
      _useMergedState2 = Object(slicedToArray["a" /* default */])(_useMergedState, 2),
      mergedActiveKey = _useMergedState2[0],
      setMergedActiveKey = _useMergedState2[1];

  var _useState3 = Object(external_window_React_["useState"])(function () {
    return tabs.findIndex(function (tab) {
      return tab.key === mergedActiveKey;
    });
  }),
      _useState4 = Object(slicedToArray["a" /* default */])(_useState3, 2),
      activeIndex = _useState4[0],
      setActiveIndex = _useState4[1]; // Reset active key if not exist anymore


  Object(external_window_React_["useEffect"])(function () {
    var newActiveIndex = tabs.findIndex(function (tab) {
      return tab.key === mergedActiveKey;
    });

    if (newActiveIndex === -1) {
      var _tabs$newActiveIndex;

      newActiveIndex = Math.max(0, Math.min(activeIndex, tabs.length - 1));
      setMergedActiveKey((_tabs$newActiveIndex = tabs[newActiveIndex]) === null || _tabs$newActiveIndex === void 0 ? void 0 : _tabs$newActiveIndex.key);
    }

    setActiveIndex(newActiveIndex);
  }, [tabs.map(function (tab) {
    return tab.key;
  }).join('_'), mergedActiveKey, activeIndex]); // ===================== Accessibility ====================

  var _useMergedState3 = Object(useMergedState["a" /* default */])(null, {
    value: id
  }),
      _useMergedState4 = Object(slicedToArray["a" /* default */])(_useMergedState3, 2),
      mergedId = _useMergedState4[0],
      setMergedId = _useMergedState4[1];

  var mergedTabPosition = tabPosition;

  if (mobile && !['left', 'right'].includes(tabPosition)) {
    mergedTabPosition = 'top';
  } // Async generate id to avoid ssr mapping failed


  Object(external_window_React_["useEffect"])(function () {
    if (!id) {
      setMergedId("rc-tabs-".concat( false ? undefined : uuid));
      uuid += 1;
    }
  }, []); // ======================== Events ========================

  function onInternalTabClick(key, e) {
    onTabClick === null || onTabClick === void 0 ? void 0 : onTabClick(key, e);
    setMergedActiveKey(key);
    onChange === null || onChange === void 0 ? void 0 : onChange(key);
  } // ======================== Render ========================


  var sharedProps = {
    id: mergedId,
    activeKey: mergedActiveKey,
    animated: mergedAnimated,
    tabPosition: mergedTabPosition,
    rtl: rtl,
    mobile: mobile
  };
  var tabNavBar;

  var tabNavBarProps = Object(objectSpread2["a" /* default */])(Object(objectSpread2["a" /* default */])({}, sharedProps), {}, {
    editable: editable,
    locale: locale,
    moreIcon: moreIcon,
    moreTransitionName: moreTransitionName,
    tabBarGutter: tabBarGutter,
    onTabClick: onInternalTabClick,
    onTabScroll: onTabScroll,
    extra: tabBarExtraContent,
    style: tabBarStyle,
    panes: children
  });

  if (renderTabBar) {
    tabNavBar = renderTabBar(tabNavBarProps, es_TabNavList);
  } else {
    tabNavBar = external_window_React_["createElement"](es_TabNavList, Object.assign({}, tabNavBarProps));
  }

  return external_window_React_["createElement"](TabContext.Provider, {
    value: {
      tabs: tabs,
      prefixCls: prefixCls
    }
  }, external_window_React_["createElement"]("div", Object.assign({
    ref: ref,
    id: id,
    className: classnames_default()(prefixCls, "".concat(prefixCls, "-").concat(mergedTabPosition), (_classNames = {}, Object(defineProperty["a" /* default */])(_classNames, "".concat(prefixCls, "-mobile"), mobile), Object(defineProperty["a" /* default */])(_classNames, "".concat(prefixCls, "-editable"), editable), Object(defineProperty["a" /* default */])(_classNames, "".concat(prefixCls, "-rtl"), rtl), _classNames), className)
  }, restProps), tabNavBar, external_window_React_["createElement"](TabPanelList, Object.assign({
    destroyInactiveTabPane: destroyInactiveTabPane
  }, sharedProps, {
    animated: mergedAnimated
  }))));
}

var ForwardTabs = external_window_React_["forwardRef"](Tabs);
ForwardTabs.TabPane = TabPane;
/* harmony default export */ var es_Tabs = (ForwardTabs);
// CONCATENATED MODULE: ./node_modules/rc-tabs/es/index.js



/* harmony default export */ var rc_tabs_es = __webpack_exports__["b"] = (es_Tabs);

/***/ }),

/***/ "kSUc":
/*!***************************************************!*\
  !*** ./src/components/markdown-editor/index.less ***!
  \***************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

// extracted by mini-css-extract-plugin

/***/ }),

/***/ "kqOp":
/*!***********************************************!*\
  !*** ./src/components/Editor/NullMDEditor.js ***!
  \***********************************************/
/*! exports provided: default */
/*! exports used: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return NullMDEditor; });
/* harmony import */ var _Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_extends__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/extends */ "0Owb");
/* harmony import */ var _Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_classCallCheck__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/classCallCheck */ "fWQN");
/* harmony import */ var _Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_createClass__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/createClass */ "mtLc");
/* harmony import */ var _Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_inherits__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/inherits */ "yKVA");
/* harmony import */ var _Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_createSuper__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/createSuper */ "879j");
/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! react */ "cDcd");
/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_5___default = /*#__PURE__*/__webpack_require__.n(react__WEBPACK_IMPORTED_MODULE_5__);
/* harmony import */ var _markdown_editor__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ../markdown-editor */ "Ot1p");







var NULL_CH = '▁';

var NullMDEditor = /*#__PURE__*/function (_Component) {
  Object(_Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_inherits__WEBPACK_IMPORTED_MODULE_3__[/* default */ "a"])(NullMDEditor, _Component);

  var _super = Object(_Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_createSuper__WEBPACK_IMPORTED_MODULE_4__[/* default */ "a"])(NullMDEditor);

  function NullMDEditor() {
    var _this;

    Object(_Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_classCallCheck__WEBPACK_IMPORTED_MODULE_1__[/* default */ "a"])(this, NullMDEditor);

    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    _this = _super.call.apply(_super, [this].concat(args));

    _this.getChCountBeforeCursor = function (cm, cursor) {
      var currentLine = cursor.line;
      var placeholderCountBefore = 0;

      for (var _line = 0; _line < currentLine; _line++) {
        placeholderCountBefore += cm.getLine(_line).split(NULL_CH).length - 1;
      }

      var currentLineStringBeforeCursor = cm.getLine(currentLine).substring(0, cursor.ch);
      placeholderCountBefore += currentLineStringBeforeCursor.split(NULL_CH).length - 1;
      return placeholderCountBefore;
    };

    _this.onCMBeforeChange = function (cm, change) {
      var rangeText = cm.getRange(change.from, change.to);
      var totalPlaceholderCount = 0;
      change.text.forEach(function (item) {
        totalPlaceholderCount += item.split(NULL_CH).length - 1;
      });

      if (rangeText && rangeText.indexOf(NULL_CH) != -1) {
        var placeholderCountInRange = rangeText.split(NULL_CH).length - 1;

        var placeholderCountBefore = _this.getChCountBeforeCursor(cm, change.from);

        console.log("\u5220\u9664".concat(placeholderCountInRange, "\u4E2A\uFF0C \u4E4B\u524D\u6709").concat(placeholderCountBefore, "\u4E2A\uFF0C\u65B0\u589E").concat(totalPlaceholderCount, "\u4E2A"));

        if (_this.props.deleteEmptyDisabled) {
          //  删除空格不检测
          change.cancel();
        } else {
          // const ret = window.confirm(
          //   `确认要删除第${
          //     placeholderCountInRange == 1
          //       ? placeholderCountBefore + 1
          //       : `${placeholderCountBefore + 1}-${placeholderCountBefore +
          //           placeholderCountInRange}`
          //   }个空吗？`,
          // );
          // if (ret) {
          _this.props.onPlaceholderChange && _this.props.onPlaceholderChange(placeholderCountBefore, placeholderCountInRange, totalPlaceholderCount); // } else {
          //   change.cancel();
          // }
        }
      } else if (totalPlaceholderCount) {
        var _placeholderCountBefore = _this.getChCountBeforeCursor(cm, change.from);

        console.log("\u65B0\u589E".concat(totalPlaceholderCount, "\u4E2A\uFF0C\u4E4B\u524D\u6709").concat(_placeholderCountBefore, "\u4E2A"));
        _this.props.onPlaceholderChange && _this.props.onPlaceholderChange(_placeholderCountBefore, 0, totalPlaceholderCount);
      }
    };

    return _this;
  }

  Object(_Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_createClass__WEBPACK_IMPORTED_MODULE_2__[/* default */ "a"])(NullMDEditor, [{
    key: "render",
    value: function render() {
      return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_5___default.a.createElement(_markdown_editor__WEBPACK_IMPORTED_MODULE_6__[/* default */ "a"], Object(_Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_extends__WEBPACK_IMPORTED_MODULE_0__[/* default */ "a"])({}, this.props, {
        onCMBeforeChange: this.onCMBeforeChange
      }));
    }
  }]);

  return NullMDEditor;
}(react__WEBPACK_IMPORTED_MODULE_5__["Component"]);



/***/ }),

/***/ "lZu9":
/*!***********************************************************!*\
  !*** ./node_modules/codemirror/mode/markdown/markdown.js ***!
  \***********************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://codemirror.net/LICENSE

(function(mod) {
  if (true) // CommonJS
    mod(__webpack_require__(/*! ../../lib/codemirror */ "VrN/"), __webpack_require__(/*! ../xml/xml */ "1eCo"), __webpack_require__(/*! ../meta */ "8EBN"));
  else {}
})(function(CodeMirror) {
"use strict";

CodeMirror.defineMode("markdown", function(cmCfg, modeCfg) {

  var htmlMode = CodeMirror.getMode(cmCfg, "text/html");
  var htmlModeMissing = htmlMode.name == "null"

  function getMode(name) {
    if (CodeMirror.findModeByName) {
      var found = CodeMirror.findModeByName(name);
      if (found) name = found.mime || found.mimes[0];
    }
    var mode = CodeMirror.getMode(cmCfg, name);
    return mode.name == "null" ? null : mode;
  }

  // Should characters that affect highlighting be highlighted separate?
  // Does not include characters that will be output (such as `1.` and `-` for lists)
  if (modeCfg.highlightFormatting === undefined)
    modeCfg.highlightFormatting = false;

  // Maximum number of nested blockquotes. Set to 0 for infinite nesting.
  // Excess `>` will emit `error` token.
  if (modeCfg.maxBlockquoteDepth === undefined)
    modeCfg.maxBlockquoteDepth = 0;

  // Turn on task lists? ("- [ ] " and "- [x] ")
  if (modeCfg.taskLists === undefined) modeCfg.taskLists = false;

  // Turn on strikethrough syntax
  if (modeCfg.strikethrough === undefined)
    modeCfg.strikethrough = false;

  if (modeCfg.emoji === undefined)
    modeCfg.emoji = false;

  if (modeCfg.fencedCodeBlockHighlighting === undefined)
    modeCfg.fencedCodeBlockHighlighting = true;

  if (modeCfg.fencedCodeBlockDefaultMode === undefined)
    modeCfg.fencedCodeBlockDefaultMode = 'text/plain';

  if (modeCfg.xml === undefined)
    modeCfg.xml = true;

  // Allow token types to be overridden by user-provided token types.
  if (modeCfg.tokenTypeOverrides === undefined)
    modeCfg.tokenTypeOverrides = {};

  var tokenTypes = {
    header: "header",
    code: "comment",
    quote: "quote",
    list1: "variable-2",
    list2: "variable-3",
    list3: "keyword",
    hr: "hr",
    image: "image",
    imageAltText: "image-alt-text",
    imageMarker: "image-marker",
    formatting: "formatting",
    linkInline: "link",
    linkEmail: "link",
    linkText: "link",
    linkHref: "string",
    em: "em",
    strong: "strong",
    strikethrough: "strikethrough",
    emoji: "builtin"
  };

  for (var tokenType in tokenTypes) {
    if (tokenTypes.hasOwnProperty(tokenType) && modeCfg.tokenTypeOverrides[tokenType]) {
      tokenTypes[tokenType] = modeCfg.tokenTypeOverrides[tokenType];
    }
  }

  var hrRE = /^([*\-_])(?:\s*\1){2,}\s*$/
  ,   listRE = /^(?:[*\-+]|^[0-9]+([.)]))\s+/
  ,   taskListRE = /^\[(x| )\](?=\s)/i // Must follow listRE
  ,   atxHeaderRE = modeCfg.allowAtxHeaderWithoutSpace ? /^(#+)/ : /^(#+)(?: |$)/
  ,   setextHeaderRE = /^ {0,3}(?:\={1,}|-{2,})\s*$/
  ,   textRE = /^[^#!\[\]*_\\<>` "'(~:]+/
  ,   fencedCodeRE = /^(~~~+|```+)[ \t]*([\w\/+#-]*)[^\n`]*$/
  ,   linkDefRE = /^\s*\[[^\]]+?\]:.*$/ // naive link-definition
  ,   punctuation = /[!"#$%&'()*+,\-.\/:;<=>?@\[\\\]^_`{|}~\xA1\xA7\xAB\xB6\xB7\xBB\xBF\u037E\u0387\u055A-\u055F\u0589\u058A\u05BE\u05C0\u05C3\u05C6\u05F3\u05F4\u0609\u060A\u060C\u060D\u061B\u061E\u061F\u066A-\u066D\u06D4\u0700-\u070D\u07F7-\u07F9\u0830-\u083E\u085E\u0964\u0965\u0970\u0AF0\u0DF4\u0E4F\u0E5A\u0E5B\u0F04-\u0F12\u0F14\u0F3A-\u0F3D\u0F85\u0FD0-\u0FD4\u0FD9\u0FDA\u104A-\u104F\u10FB\u1360-\u1368\u1400\u166D\u166E\u169B\u169C\u16EB-\u16ED\u1735\u1736\u17D4-\u17D6\u17D8-\u17DA\u1800-\u180A\u1944\u1945\u1A1E\u1A1F\u1AA0-\u1AA6\u1AA8-\u1AAD\u1B5A-\u1B60\u1BFC-\u1BFF\u1C3B-\u1C3F\u1C7E\u1C7F\u1CC0-\u1CC7\u1CD3\u2010-\u2027\u2030-\u2043\u2045-\u2051\u2053-\u205E\u207D\u207E\u208D\u208E\u2308-\u230B\u2329\u232A\u2768-\u2775\u27C5\u27C6\u27E6-\u27EF\u2983-\u2998\u29D8-\u29DB\u29FC\u29FD\u2CF9-\u2CFC\u2CFE\u2CFF\u2D70\u2E00-\u2E2E\u2E30-\u2E42\u3001-\u3003\u3008-\u3011\u3014-\u301F\u3030\u303D\u30A0\u30FB\uA4FE\uA4FF\uA60D-\uA60F\uA673\uA67E\uA6F2-\uA6F7\uA874-\uA877\uA8CE\uA8CF\uA8F8-\uA8FA\uA8FC\uA92E\uA92F\uA95F\uA9C1-\uA9CD\uA9DE\uA9DF\uAA5C-\uAA5F\uAADE\uAADF\uAAF0\uAAF1\uABEB\uFD3E\uFD3F\uFE10-\uFE19\uFE30-\uFE52\uFE54-\uFE61\uFE63\uFE68\uFE6A\uFE6B\uFF01-\uFF03\uFF05-\uFF0A\uFF0C-\uFF0F\uFF1A\uFF1B\uFF1F\uFF20\uFF3B-\uFF3D\uFF3F\uFF5B\uFF5D\uFF5F-\uFF65]|\uD800[\uDD00-\uDD02\uDF9F\uDFD0]|\uD801\uDD6F|\uD802[\uDC57\uDD1F\uDD3F\uDE50-\uDE58\uDE7F\uDEF0-\uDEF6\uDF39-\uDF3F\uDF99-\uDF9C]|\uD804[\uDC47-\uDC4D\uDCBB\uDCBC\uDCBE-\uDCC1\uDD40-\uDD43\uDD74\uDD75\uDDC5-\uDDC9\uDDCD\uDDDB\uDDDD-\uDDDF\uDE38-\uDE3D\uDEA9]|\uD805[\uDCC6\uDDC1-\uDDD7\uDE41-\uDE43\uDF3C-\uDF3E]|\uD809[\uDC70-\uDC74]|\uD81A[\uDE6E\uDE6F\uDEF5\uDF37-\uDF3B\uDF44]|\uD82F\uDC9F|\uD836[\uDE87-\uDE8B]/
  ,   expandedTab = "    " // CommonMark specifies tab as 4 spaces

  function switchInline(stream, state, f) {
    state.f = state.inline = f;
    return f(stream, state);
  }

  function switchBlock(stream, state, f) {
    state.f = state.block = f;
    return f(stream, state);
  }

  function lineIsEmpty(line) {
    return !line || !/\S/.test(line.string)
  }

  // Blocks

  function blankLine(state) {
    // Reset linkTitle state
    state.linkTitle = false;
    state.linkHref = false;
    state.linkText = false;
    // Reset EM state
    state.em = false;
    // Reset STRONG state
    state.strong = false;
    // Reset strikethrough state
    state.strikethrough = false;
    // Reset state.quote
    state.quote = 0;
    // Reset state.indentedCode
    state.indentedCode = false;
    if (state.f == htmlBlock) {
      var exit = htmlModeMissing
      if (!exit) {
        var inner = CodeMirror.innerMode(htmlMode, state.htmlState)
        exit = inner.mode.name == "xml" && inner.state.tagStart === null &&
          (!inner.state.context && inner.state.tokenize.isInText)
      }
      if (exit) {
        state.f = inlineNormal;
        state.block = blockNormal;
        state.htmlState = null;
      }
    }
    // Reset state.trailingSpace
    state.trailingSpace = 0;
    state.trailingSpaceNewLine = false;
    // Mark this line as blank
    state.prevLine = state.thisLine
    state.thisLine = {stream: null}
    return null;
  }

  function blockNormal(stream, state) {
    var firstTokenOnLine = stream.column() === state.indentation;
    var prevLineLineIsEmpty = lineIsEmpty(state.prevLine.stream);
    var prevLineIsIndentedCode = state.indentedCode;
    var prevLineIsHr = state.prevLine.hr;
    var prevLineIsList = state.list !== false;
    var maxNonCodeIndentation = (state.listStack[state.listStack.length - 1] || 0) + 3;

    state.indentedCode = false;

    var lineIndentation = state.indentation;
    // compute once per line (on first token)
    if (state.indentationDiff === null) {
      state.indentationDiff = state.indentation;
      if (prevLineIsList) {
        state.list = null;
        // While this list item's marker's indentation is less than the deepest
        //  list item's content's indentation,pop the deepest list item
        //  indentation off the stack, and update block indentation state
        while (lineIndentation < state.listStack[state.listStack.length - 1]) {
          state.listStack.pop();
          if (state.listStack.length) {
            state.indentation = state.listStack[state.listStack.length - 1];
          // less than the first list's indent -> the line is no longer a list
          } else {
            state.list = false;
          }
        }
        if (state.list !== false) {
          state.indentationDiff = lineIndentation - state.listStack[state.listStack.length - 1]
        }
      }
    }

    // not comprehensive (currently only for setext detection purposes)
    var allowsInlineContinuation = (
        !prevLineLineIsEmpty && !prevLineIsHr && !state.prevLine.header &&
        (!prevLineIsList || !prevLineIsIndentedCode) &&
        !state.prevLine.fencedCodeEnd
    );

    var isHr = (state.list === false || prevLineIsHr || prevLineLineIsEmpty) &&
      state.indentation <= maxNonCodeIndentation && stream.match(hrRE);

    var match = null;
    if (state.indentationDiff >= 4 && (prevLineIsIndentedCode || state.prevLine.fencedCodeEnd ||
         state.prevLine.header || prevLineLineIsEmpty)) {
      stream.skipToEnd();
      state.indentedCode = true;
      return tokenTypes.code;
    } else if (stream.eatSpace()) {
      return null;
    } else if (firstTokenOnLine && state.indentation <= maxNonCodeIndentation && (match = stream.match(atxHeaderRE)) && match[1].length <= 6) {
      state.quote = 0;
      state.header = match[1].length;
      state.thisLine.header = true;
      if (modeCfg.highlightFormatting) state.formatting = "header";
      state.f = state.inline;
      return getType(state);
    } else if (state.indentation <= maxNonCodeIndentation && stream.eat('>')) {
      state.quote = firstTokenOnLine ? 1 : state.quote + 1;
      if (modeCfg.highlightFormatting) state.formatting = "quote";
      stream.eatSpace();
      return getType(state);
    } else if (!isHr && !state.setext && firstTokenOnLine && state.indentation <= maxNonCodeIndentation && (match = stream.match(listRE))) {
      var listType = match[1] ? "ol" : "ul";

      state.indentation = lineIndentation + stream.current().length;
      state.list = true;
      state.quote = 0;

      // Add this list item's content's indentation to the stack
      state.listStack.push(state.indentation);
      // Reset inline styles which shouldn't propagate aross list items
      state.em = false;
      state.strong = false;
      state.code = false;
      state.strikethrough = false;

      if (modeCfg.taskLists && stream.match(taskListRE, false)) {
        state.taskList = true;
      }
      state.f = state.inline;
      if (modeCfg.highlightFormatting) state.formatting = ["list", "list-" + listType];
      return getType(state);
    } else if (firstTokenOnLine && state.indentation <= maxNonCodeIndentation && (match = stream.match(fencedCodeRE, true))) {
      state.quote = 0;
      state.fencedEndRE = new RegExp(match[1] + "+ *$");
      // try switching mode
      state.localMode = modeCfg.fencedCodeBlockHighlighting && getMode(match[2] || modeCfg.fencedCodeBlockDefaultMode );
      if (state.localMode) state.localState = CodeMirror.startState(state.localMode);
      state.f = state.block = local;
      if (modeCfg.highlightFormatting) state.formatting = "code-block";
      state.code = -1
      return getType(state);
    // SETEXT has lowest block-scope precedence after HR, so check it after
    //  the others (code, blockquote, list...)
    } else if (
      // if setext set, indicates line after ---/===
      state.setext || (
        // line before ---/===
        (!allowsInlineContinuation || !prevLineIsList) && !state.quote && state.list === false &&
        !state.code && !isHr && !linkDefRE.test(stream.string) &&
        (match = stream.lookAhead(1)) && (match = match.match(setextHeaderRE))
      )
    ) {
      if ( !state.setext ) {
        state.header = match[0].charAt(0) == '=' ? 1 : 2;
        state.setext = state.header;
      } else {
        state.header = state.setext;
        // has no effect on type so we can reset it now
        state.setext = 0;
        stream.skipToEnd();
        if (modeCfg.highlightFormatting) state.formatting = "header";
      }
      state.thisLine.header = true;
      state.f = state.inline;
      return getType(state);
    } else if (isHr) {
      stream.skipToEnd();
      state.hr = true;
      state.thisLine.hr = true;
      return tokenTypes.hr;
    } else if (stream.peek() === '[') {
      return switchInline(stream, state, footnoteLink);
    }

    return switchInline(stream, state, state.inline);
  }

  function htmlBlock(stream, state) {
    var style = htmlMode.token(stream, state.htmlState);
    if (!htmlModeMissing) {
      var inner = CodeMirror.innerMode(htmlMode, state.htmlState)
      if ((inner.mode.name == "xml" && inner.state.tagStart === null &&
           (!inner.state.context && inner.state.tokenize.isInText)) ||
          (state.md_inside && stream.current().indexOf(">") > -1)) {
        state.f = inlineNormal;
        state.block = blockNormal;
        state.htmlState = null;
      }
    }
    return style;
  }

  function local(stream, state) {
    var currListInd = state.listStack[state.listStack.length - 1] || 0;
    var hasExitedList = state.indentation < currListInd;
    var maxFencedEndInd = currListInd + 3;
    if (state.fencedEndRE && state.indentation <= maxFencedEndInd && (hasExitedList || stream.match(state.fencedEndRE))) {
      if (modeCfg.highlightFormatting) state.formatting = "code-block";
      var returnType;
      if (!hasExitedList) returnType = getType(state)
      state.localMode = state.localState = null;
      state.block = blockNormal;
      state.f = inlineNormal;
      state.fencedEndRE = null;
      state.code = 0
      state.thisLine.fencedCodeEnd = true;
      if (hasExitedList) return switchBlock(stream, state, state.block);
      return returnType;
    } else if (state.localMode) {
      return state.localMode.token(stream, state.localState);
    } else {
      stream.skipToEnd();
      return tokenTypes.code;
    }
  }

  // Inline
  function getType(state) {
    var styles = [];

    if (state.formatting) {
      styles.push(tokenTypes.formatting);

      if (typeof state.formatting === "string") state.formatting = [state.formatting];

      for (var i = 0; i < state.formatting.length; i++) {
        styles.push(tokenTypes.formatting + "-" + state.formatting[i]);

        if (state.formatting[i] === "header") {
          styles.push(tokenTypes.formatting + "-" + state.formatting[i] + "-" + state.header);
        }

        // Add `formatting-quote` and `formatting-quote-#` for blockquotes
        // Add `error` instead if the maximum blockquote nesting depth is passed
        if (state.formatting[i] === "quote") {
          if (!modeCfg.maxBlockquoteDepth || modeCfg.maxBlockquoteDepth >= state.quote) {
            styles.push(tokenTypes.formatting + "-" + state.formatting[i] + "-" + state.quote);
          } else {
            styles.push("error");
          }
        }
      }
    }

    if (state.taskOpen) {
      styles.push("meta");
      return styles.length ? styles.join(' ') : null;
    }
    if (state.taskClosed) {
      styles.push("property");
      return styles.length ? styles.join(' ') : null;
    }

    if (state.linkHref) {
      styles.push(tokenTypes.linkHref, "url");
    } else { // Only apply inline styles to non-url text
      if (state.strong) { styles.push(tokenTypes.strong); }
      if (state.em) { styles.push(tokenTypes.em); }
      if (state.strikethrough) { styles.push(tokenTypes.strikethrough); }
      if (state.emoji) { styles.push(tokenTypes.emoji); }
      if (state.linkText) { styles.push(tokenTypes.linkText); }
      if (state.code) { styles.push(tokenTypes.code); }
      if (state.image) { styles.push(tokenTypes.image); }
      if (state.imageAltText) { styles.push(tokenTypes.imageAltText, "link"); }
      if (state.imageMarker) { styles.push(tokenTypes.imageMarker); }
    }

    if (state.header) { styles.push(tokenTypes.header, tokenTypes.header + "-" + state.header); }

    if (state.quote) {
      styles.push(tokenTypes.quote);

      // Add `quote-#` where the maximum for `#` is modeCfg.maxBlockquoteDepth
      if (!modeCfg.maxBlockquoteDepth || modeCfg.maxBlockquoteDepth >= state.quote) {
        styles.push(tokenTypes.quote + "-" + state.quote);
      } else {
        styles.push(tokenTypes.quote + "-" + modeCfg.maxBlockquoteDepth);
      }
    }

    if (state.list !== false) {
      var listMod = (state.listStack.length - 1) % 3;
      if (!listMod) {
        styles.push(tokenTypes.list1);
      } else if (listMod === 1) {
        styles.push(tokenTypes.list2);
      } else {
        styles.push(tokenTypes.list3);
      }
    }

    if (state.trailingSpaceNewLine) {
      styles.push("trailing-space-new-line");
    } else if (state.trailingSpace) {
      styles.push("trailing-space-" + (state.trailingSpace % 2 ? "a" : "b"));
    }

    return styles.length ? styles.join(' ') : null;
  }

  function handleText(stream, state) {
    if (stream.match(textRE, true)) {
      return getType(state);
    }
    return undefined;
  }

  function inlineNormal(stream, state) {
    var style = state.text(stream, state);
    if (typeof style !== 'undefined')
      return style;

    if (state.list) { // List marker (*, +, -, 1., etc)
      state.list = null;
      return getType(state);
    }

    if (state.taskList) {
      var taskOpen = stream.match(taskListRE, true)[1] === " ";
      if (taskOpen) state.taskOpen = true;
      else state.taskClosed = true;
      if (modeCfg.highlightFormatting) state.formatting = "task";
      state.taskList = false;
      return getType(state);
    }

    state.taskOpen = false;
    state.taskClosed = false;

    if (state.header && stream.match(/^#+$/, true)) {
      if (modeCfg.highlightFormatting) state.formatting = "header";
      return getType(state);
    }

    var ch = stream.next();

    // Matches link titles present on next line
    if (state.linkTitle) {
      state.linkTitle = false;
      var matchCh = ch;
      if (ch === '(') {
        matchCh = ')';
      }
      matchCh = (matchCh+'').replace(/([.?*+^\[\]\\(){}|-])/g, "\\$1");
      var regex = '^\\s*(?:[^' + matchCh + '\\\\]+|\\\\\\\\|\\\\.)' + matchCh;
      if (stream.match(new RegExp(regex), true)) {
        return tokenTypes.linkHref;
      }
    }

    // If this block is changed, it may need to be updated in GFM mode
    if (ch === '`') {
      var previousFormatting = state.formatting;
      if (modeCfg.highlightFormatting) state.formatting = "code";
      stream.eatWhile('`');
      var count = stream.current().length
      if (state.code == 0 && (!state.quote || count == 1)) {
        state.code = count
        return getType(state)
      } else if (count == state.code) { // Must be exact
        var t = getType(state)
        state.code = 0
        return t
      } else {
        state.formatting = previousFormatting
        return getType(state)
      }
    } else if (state.code) {
      return getType(state);
    }

    if (ch === '\\') {
      stream.next();
      if (modeCfg.highlightFormatting) {
        var type = getType(state);
        var formattingEscape = tokenTypes.formatting + "-escape";
        return type ? type + " " + formattingEscape : formattingEscape;
      }
    }

    if (ch === '!' && stream.match(/\[[^\]]*\] ?(?:\(|\[)/, false)) {
      state.imageMarker = true;
      state.image = true;
      if (modeCfg.highlightFormatting) state.formatting = "image";
      return getType(state);
    }

    if (ch === '[' && state.imageMarker && stream.match(/[^\]]*\](\(.*?\)| ?\[.*?\])/, false)) {
      state.imageMarker = false;
      state.imageAltText = true
      if (modeCfg.highlightFormatting) state.formatting = "image";
      return getType(state);
    }

    if (ch === ']' && state.imageAltText) {
      if (modeCfg.highlightFormatting) state.formatting = "image";
      var type = getType(state);
      state.imageAltText = false;
      state.image = false;
      state.inline = state.f = linkHref;
      return type;
    }

    if (ch === '[' && !state.image) {
      if (state.linkText && stream.match(/^.*?\]/)) return getType(state)
      state.linkText = true;
      if (modeCfg.highlightFormatting) state.formatting = "link";
      return getType(state);
    }

    if (ch === ']' && state.linkText) {
      if (modeCfg.highlightFormatting) state.formatting = "link";
      var type = getType(state);
      state.linkText = false;
      state.inline = state.f = stream.match(/\(.*?\)| ?\[.*?\]/, false) ? linkHref : inlineNormal
      return type;
    }

    if (ch === '<' && stream.match(/^(https?|ftps?):\/\/(?:[^\\>]|\\.)+>/, false)) {
      state.f = state.inline = linkInline;
      if (modeCfg.highlightFormatting) state.formatting = "link";
      var type = getType(state);
      if (type){
        type += " ";
      } else {
        type = "";
      }
      return type + tokenTypes.linkInline;
    }

    if (ch === '<' && stream.match(/^[^> \\]+@(?:[^\\>]|\\.)+>/, false)) {
      state.f = state.inline = linkInline;
      if (modeCfg.highlightFormatting) state.formatting = "link";
      var type = getType(state);
      if (type){
        type += " ";
      } else {
        type = "";
      }
      return type + tokenTypes.linkEmail;
    }

    if (modeCfg.xml && ch === '<' && stream.match(/^(!--|\?|!\[CDATA\[|[a-z][a-z0-9-]*(?:\s+[a-z_:.\-]+(?:\s*=\s*[^>]+)?)*\s*(?:>|$))/i, false)) {
      var end = stream.string.indexOf(">", stream.pos);
      if (end != -1) {
        var atts = stream.string.substring(stream.start, end);
        if (/markdown\s*=\s*('|"){0,1}1('|"){0,1}/.test(atts)) state.md_inside = true;
      }
      stream.backUp(1);
      state.htmlState = CodeMirror.startState(htmlMode);
      return switchBlock(stream, state, htmlBlock);
    }

    if (modeCfg.xml && ch === '<' && stream.match(/^\/\w*?>/)) {
      state.md_inside = false;
      return "tag";
    } else if (ch === "*" || ch === "_") {
      var len = 1, before = stream.pos == 1 ? " " : stream.string.charAt(stream.pos - 2)
      while (len < 3 && stream.eat(ch)) len++
      var after = stream.peek() || " "
      // See http://spec.commonmark.org/0.27/#emphasis-and-strong-emphasis
      var leftFlanking = !/\s/.test(after) && (!punctuation.test(after) || /\s/.test(before) || punctuation.test(before))
      var rightFlanking = !/\s/.test(before) && (!punctuation.test(before) || /\s/.test(after) || punctuation.test(after))
      var setEm = null, setStrong = null
      if (len % 2) { // Em
        if (!state.em && leftFlanking && (ch === "*" || !rightFlanking || punctuation.test(before)))
          setEm = true
        else if (state.em == ch && rightFlanking && (ch === "*" || !leftFlanking || punctuation.test(after)))
          setEm = false
      }
      if (len > 1) { // Strong
        if (!state.strong && leftFlanking && (ch === "*" || !rightFlanking || punctuation.test(before)))
          setStrong = true
        else if (state.strong == ch && rightFlanking && (ch === "*" || !leftFlanking || punctuation.test(after)))
          setStrong = false
      }
      if (setStrong != null || setEm != null) {
        if (modeCfg.highlightFormatting) state.formatting = setEm == null ? "strong" : setStrong == null ? "em" : "strong em"
        if (setEm === true) state.em = ch
        if (setStrong === true) state.strong = ch
        var t = getType(state)
        if (setEm === false) state.em = false
        if (setStrong === false) state.strong = false
        return t
      }
    } else if (ch === ' ') {
      if (stream.eat('*') || stream.eat('_')) { // Probably surrounded by spaces
        if (stream.peek() === ' ') { // Surrounded by spaces, ignore
          return getType(state);
        } else { // Not surrounded by spaces, back up pointer
          stream.backUp(1);
        }
      }
    }

    if (modeCfg.strikethrough) {
      if (ch === '~' && stream.eatWhile(ch)) {
        if (state.strikethrough) {// Remove strikethrough
          if (modeCfg.highlightFormatting) state.formatting = "strikethrough";
          var t = getType(state);
          state.strikethrough = false;
          return t;
        } else if (stream.match(/^[^\s]/, false)) {// Add strikethrough
          state.strikethrough = true;
          if (modeCfg.highlightFormatting) state.formatting = "strikethrough";
          return getType(state);
        }
      } else if (ch === ' ') {
        if (stream.match(/^~~/, true)) { // Probably surrounded by space
          if (stream.peek() === ' ') { // Surrounded by spaces, ignore
            return getType(state);
          } else { // Not surrounded by spaces, back up pointer
            stream.backUp(2);
          }
        }
      }
    }

    if (modeCfg.emoji && ch === ":" && stream.match(/^(?:[a-z_\d+][a-z_\d+-]*|\-[a-z_\d+][a-z_\d+-]*):/)) {
      state.emoji = true;
      if (modeCfg.highlightFormatting) state.formatting = "emoji";
      var retType = getType(state);
      state.emoji = false;
      return retType;
    }

    if (ch === ' ') {
      if (stream.match(/^ +$/, false)) {
        state.trailingSpace++;
      } else if (state.trailingSpace) {
        state.trailingSpaceNewLine = true;
      }
    }

    return getType(state);
  }

  function linkInline(stream, state) {
    var ch = stream.next();

    if (ch === ">") {
      state.f = state.inline = inlineNormal;
      if (modeCfg.highlightFormatting) state.formatting = "link";
      var type = getType(state);
      if (type){
        type += " ";
      } else {
        type = "";
      }
      return type + tokenTypes.linkInline;
    }

    stream.match(/^[^>]+/, true);

    return tokenTypes.linkInline;
  }

  function linkHref(stream, state) {
    // Check if space, and return NULL if so (to avoid marking the space)
    if(stream.eatSpace()){
      return null;
    }
    var ch = stream.next();
    if (ch === '(' || ch === '[') {
      state.f = state.inline = getLinkHrefInside(ch === "(" ? ")" : "]");
      if (modeCfg.highlightFormatting) state.formatting = "link-string";
      state.linkHref = true;
      return getType(state);
    }
    return 'error';
  }

  var linkRE = {
    ")": /^(?:[^\\\(\)]|\\.|\((?:[^\\\(\)]|\\.)*\))*?(?=\))/,
    "]": /^(?:[^\\\[\]]|\\.|\[(?:[^\\\[\]]|\\.)*\])*?(?=\])/
  }

  function getLinkHrefInside(endChar) {
    return function(stream, state) {
      var ch = stream.next();

      if (ch === endChar) {
        state.f = state.inline = inlineNormal;
        if (modeCfg.highlightFormatting) state.formatting = "link-string";
        var returnState = getType(state);
        state.linkHref = false;
        return returnState;
      }

      stream.match(linkRE[endChar])
      state.linkHref = true;
      return getType(state);
    };
  }

  function footnoteLink(stream, state) {
    if (stream.match(/^([^\]\\]|\\.)*\]:/, false)) {
      state.f = footnoteLinkInside;
      stream.next(); // Consume [
      if (modeCfg.highlightFormatting) state.formatting = "link";
      state.linkText = true;
      return getType(state);
    }
    return switchInline(stream, state, inlineNormal);
  }

  function footnoteLinkInside(stream, state) {
    if (stream.match(/^\]:/, true)) {
      state.f = state.inline = footnoteUrl;
      if (modeCfg.highlightFormatting) state.formatting = "link";
      var returnType = getType(state);
      state.linkText = false;
      return returnType;
    }

    stream.match(/^([^\]\\]|\\.)+/, true);

    return tokenTypes.linkText;
  }

  function footnoteUrl(stream, state) {
    // Check if space, and return NULL if so (to avoid marking the space)
    if(stream.eatSpace()){
      return null;
    }
    // Match URL
    stream.match(/^[^\s]+/, true);
    // Check for link title
    if (stream.peek() === undefined) { // End of line, set flag to check next line
      state.linkTitle = true;
    } else { // More content on line, check if link title
      stream.match(/^(?:\s+(?:"(?:[^"\\]|\\\\|\\.)+"|'(?:[^'\\]|\\\\|\\.)+'|\((?:[^)\\]|\\\\|\\.)+\)))?/, true);
    }
    state.f = state.inline = inlineNormal;
    return tokenTypes.linkHref + " url";
  }

  var mode = {
    startState: function() {
      return {
        f: blockNormal,

        prevLine: {stream: null},
        thisLine: {stream: null},

        block: blockNormal,
        htmlState: null,
        indentation: 0,

        inline: inlineNormal,
        text: handleText,

        formatting: false,
        linkText: false,
        linkHref: false,
        linkTitle: false,
        code: 0,
        em: false,
        strong: false,
        header: 0,
        setext: 0,
        hr: false,
        taskList: false,
        list: false,
        listStack: [],
        quote: 0,
        trailingSpace: 0,
        trailingSpaceNewLine: false,
        strikethrough: false,
        emoji: false,
        fencedEndRE: null
      };
    },

    copyState: function(s) {
      return {
        f: s.f,

        prevLine: s.prevLine,
        thisLine: s.thisLine,

        block: s.block,
        htmlState: s.htmlState && CodeMirror.copyState(htmlMode, s.htmlState),
        indentation: s.indentation,

        localMode: s.localMode,
        localState: s.localMode ? CodeMirror.copyState(s.localMode, s.localState) : null,

        inline: s.inline,
        text: s.text,
        formatting: false,
        linkText: s.linkText,
        linkTitle: s.linkTitle,
        linkHref: s.linkHref,
        code: s.code,
        em: s.em,
        strong: s.strong,
        strikethrough: s.strikethrough,
        emoji: s.emoji,
        header: s.header,
        setext: s.setext,
        hr: s.hr,
        taskList: s.taskList,
        list: s.list,
        listStack: s.listStack.slice(0),
        quote: s.quote,
        indentedCode: s.indentedCode,
        trailingSpace: s.trailingSpace,
        trailingSpaceNewLine: s.trailingSpaceNewLine,
        md_inside: s.md_inside,
        fencedEndRE: s.fencedEndRE
      };
    },

    token: function(stream, state) {

      // Reset state.formatting
      state.formatting = false;

      if (stream != state.thisLine.stream) {
        state.header = 0;
        state.hr = false;

        if (stream.match(/^\s*$/, true)) {
          blankLine(state);
          return null;
        }

        state.prevLine = state.thisLine
        state.thisLine = {stream: stream}

        // Reset state.taskList
        state.taskList = false;

        // Reset state.trailingSpace
        state.trailingSpace = 0;
        state.trailingSpaceNewLine = false;

        if (!state.localState) {
          state.f = state.block;
          if (state.f != htmlBlock) {
            var indentation = stream.match(/^\s*/, true)[0].replace(/\t/g, expandedTab).length;
            state.indentation = indentation;
            state.indentationDiff = null;
            if (indentation > 0) return null;
          }
        }
      }
      return state.f(stream, state);
    },

    innerMode: function(state) {
      if (state.block == htmlBlock) return {state: state.htmlState, mode: htmlMode};
      if (state.localState) return {state: state.localState, mode: state.localMode};
      return {state: state, mode: mode};
    },

    indent: function(state, textAfter, line) {
      if (state.block == htmlBlock && htmlMode.indent) return htmlMode.indent(state.htmlState, textAfter, line)
      if (state.localState && state.localMode.indent) return state.localMode.indent(state.localState, textAfter, line)
      return CodeMirror.Pass
    },

    blankLine: blankLine,

    getType: getType,

    blockCommentStart: "<!--",
    blockCommentEnd: "-->",
    closeBrackets: "()[]{}''\"\"``",
    fold: "markdown"
  };
  return mode;
}, "xml");

CodeMirror.defineMIME("text/markdown", "markdown");

CodeMirror.defineMIME("text/x-markdown", "markdown");

});


/***/ }),

/***/ "osHv":
/*!********************************************************!*\
  !*** ./node_modules/codemirror/addon/fold/xml-fold.js ***!
  \********************************************************/
/*! no static exports found */
/*! all exports used */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://codemirror.net/LICENSE

(function(mod) {
  if (true) // CommonJS
    mod(__webpack_require__(/*! ../../lib/codemirror */ "VrN/"));
  else {}
})(function(CodeMirror) {
  "use strict";

  var Pos = CodeMirror.Pos;
  function cmp(a, b) { return a.line - b.line || a.ch - b.ch; }

  var nameStartChar = "A-Z_a-z\\u00C0-\\u00D6\\u00D8-\\u00F6\\u00F8-\\u02FF\\u0370-\\u037D\\u037F-\\u1FFF\\u200C-\\u200D\\u2070-\\u218F\\u2C00-\\u2FEF\\u3001-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFFD";
  var nameChar = nameStartChar + "\-\:\.0-9\\u00B7\\u0300-\\u036F\\u203F-\\u2040";
  var xmlTagStart = new RegExp("<(/?)([" + nameStartChar + "][" + nameChar + "]*)", "g");

  function Iter(cm, line, ch, range) {
    this.line = line; this.ch = ch;
    this.cm = cm; this.text = cm.getLine(line);
    this.min = range ? Math.max(range.from, cm.firstLine()) : cm.firstLine();
    this.max = range ? Math.min(range.to - 1, cm.lastLine()) : cm.lastLine();
  }

  function tagAt(iter, ch) {
    var type = iter.cm.getTokenTypeAt(Pos(iter.line, ch));
    return type && /\btag\b/.test(type);
  }

  function nextLine(iter) {
    if (iter.line >= iter.max) return;
    iter.ch = 0;
    iter.text = iter.cm.getLine(++iter.line);
    return true;
  }
  function prevLine(iter) {
    if (iter.line <= iter.min) return;
    iter.text = iter.cm.getLine(--iter.line);
    iter.ch = iter.text.length;
    return true;
  }

  function toTagEnd(iter) {
    for (;;) {
      var gt = iter.text.indexOf(">", iter.ch);
      if (gt == -1) { if (nextLine(iter)) continue; else return; }
      if (!tagAt(iter, gt + 1)) { iter.ch = gt + 1; continue; }
      var lastSlash = iter.text.lastIndexOf("/", gt);
      var selfClose = lastSlash > -1 && !/\S/.test(iter.text.slice(lastSlash + 1, gt));
      iter.ch = gt + 1;
      return selfClose ? "selfClose" : "regular";
    }
  }
  function toTagStart(iter) {
    for (;;) {
      var lt = iter.ch ? iter.text.lastIndexOf("<", iter.ch - 1) : -1;
      if (lt == -1) { if (prevLine(iter)) continue; else return; }
      if (!tagAt(iter, lt + 1)) { iter.ch = lt; continue; }
      xmlTagStart.lastIndex = lt;
      iter.ch = lt;
      var match = xmlTagStart.exec(iter.text);
      if (match && match.index == lt) return match;
    }
  }

  function toNextTag(iter) {
    for (;;) {
      xmlTagStart.lastIndex = iter.ch;
      var found = xmlTagStart.exec(iter.text);
      if (!found) { if (nextLine(iter)) continue; else return; }
      if (!tagAt(iter, found.index + 1)) { iter.ch = found.index + 1; continue; }
      iter.ch = found.index + found[0].length;
      return found;
    }
  }
  function toPrevTag(iter) {
    for (;;) {
      var gt = iter.ch ? iter.text.lastIndexOf(">", iter.ch - 1) : -1;
      if (gt == -1) { if (prevLine(iter)) continue; else return; }
      if (!tagAt(iter, gt + 1)) { iter.ch = gt; continue; }
      var lastSlash = iter.text.lastIndexOf("/", gt);
      var selfClose = lastSlash > -1 && !/\S/.test(iter.text.slice(lastSlash + 1, gt));
      iter.ch = gt + 1;
      return selfClose ? "selfClose" : "regular";
    }
  }

  function findMatchingClose(iter, tag) {
    var stack = [];
    for (;;) {
      var next = toNextTag(iter), end, startLine = iter.line, startCh = iter.ch - (next ? next[0].length : 0);
      if (!next || !(end = toTagEnd(iter))) return;
      if (end == "selfClose") continue;
      if (next[1]) { // closing tag
        for (var i = stack.length - 1; i >= 0; --i) if (stack[i] == next[2]) {
          stack.length = i;
          break;
        }
        if (i < 0 && (!tag || tag == next[2])) return {
          tag: next[2],
          from: Pos(startLine, startCh),
          to: Pos(iter.line, iter.ch)
        };
      } else { // opening tag
        stack.push(next[2]);
      }
    }
  }
  function findMatchingOpen(iter, tag) {
    var stack = [];
    for (;;) {
      var prev = toPrevTag(iter);
      if (!prev) return;
      if (prev == "selfClose") { toTagStart(iter); continue; }
      var endLine = iter.line, endCh = iter.ch;
      var start = toTagStart(iter);
      if (!start) return;
      if (start[1]) { // closing tag
        stack.push(start[2]);
      } else { // opening tag
        for (var i = stack.length - 1; i >= 0; --i) if (stack[i] == start[2]) {
          stack.length = i;
          break;
        }
        if (i < 0 && (!tag || tag == start[2])) return {
          tag: start[2],
          from: Pos(iter.line, iter.ch),
          to: Pos(endLine, endCh)
        };
      }
    }
  }

  CodeMirror.registerHelper("fold", "xml", function(cm, start) {
    var iter = new Iter(cm, start.line, 0);
    for (;;) {
      var openTag = toNextTag(iter)
      if (!openTag || iter.line != start.line) return
      var end = toTagEnd(iter)
      if (!end) return
      if (!openTag[1] && end != "selfClose") {
        var startPos = Pos(iter.line, iter.ch);
        var endPos = findMatchingClose(iter, openTag[2]);
        return endPos && cmp(endPos.from, startPos) > 0 ? {from: startPos, to: endPos.from} : null
      }
    }
  });
  CodeMirror.findMatchingTag = function(cm, pos, range) {
    var iter = new Iter(cm, pos.line, pos.ch, range);
    if (iter.text.indexOf(">") == -1 && iter.text.indexOf("<") == -1) return;
    var end = toTagEnd(iter), to = end && Pos(iter.line, iter.ch);
    var start = end && toTagStart(iter);
    if (!end || !start || cmp(iter, pos) > 0) return;
    var here = {from: Pos(iter.line, iter.ch), to: to, tag: start[2]};
    if (end == "selfClose") return {open: here, close: null, at: "open"};

    if (start[1]) { // closing tag
      return {open: findMatchingOpen(iter, start[2]), close: here, at: "close"};
    } else { // opening tag
      iter = new Iter(cm, to.line, to.ch, range);
      return {open: here, close: findMatchingClose(iter, start[2]), at: "open"};
    }
  };

  CodeMirror.findEnclosingTag = function(cm, pos, range, tag) {
    var iter = new Iter(cm, pos.line, pos.ch, range);
    for (;;) {
      var open = findMatchingOpen(iter, tag);
      if (!open) break;
      var forward = new Iter(cm, pos.line, pos.ch, range);
      var close = findMatchingClose(forward, open.tag);
      if (close) return {open: open, close: close};
    }
  };

  // Used by addon/edit/closetag.js
  CodeMirror.scanForClosingTag = function(cm, pos, name, end) {
    var iter = new Iter(cm, pos.line, pos.ch, end ? {from: 0, to: end} : null);
    return findMatchingClose(iter, name);
  };
});


/***/ }),

/***/ "p5ED":
/*!*********************************************!*\
  !*** ./src/components/PreviewAll/index.tsx ***!
  \*********************************************/
/*! exports provided: default */
/*! exports used: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony import */ var antd_es_button_style__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! antd/es/button/style */ "+L6B");
/* harmony import */ var antd_es_button__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! antd/es/button */ "2/Rp");
/* harmony import */ var antd_es_tooltip_style__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! antd/es/tooltip/style */ "5Dmo");
/* harmony import */ var antd_es_tooltip__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! antd/es/tooltip */ "3S7+");
/* harmony import */ var _Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_objectSpread2__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/objectSpread2 */ "k1fw");
/* harmony import */ var _Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_slicedToArray__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/slicedToArray */ "tJVT");
/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! react */ "cDcd");
/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_6___default = /*#__PURE__*/__webpack_require__.n(react__WEBPACK_IMPORTED_MODULE_6__);
/* harmony import */ var _index_less_modules__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ./index.less?modules */ "vHTk");
/* harmony import */ var _index_less_modules__WEBPACK_IMPORTED_MODULE_7___default = /*#__PURE__*/__webpack_require__.n(_index_less_modules__WEBPACK_IMPORTED_MODULE_7__);
/* harmony import */ var _ant_design_icons__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! @ant-design/icons */ "yEEn");
/* harmony import */ var _components_monaco_editor__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(/*! @/components/monaco-editor */ "ZW9T");
/* harmony import */ var _utils_util__WEBPACK_IMPORTED_MODULE_10__ = __webpack_require__(/*! @/utils/util */ "1vsH");











/* harmony default export */ __webpack_exports__["a"] = (function (_ref) {
  var name = _ref.name,
      data = _ref.data,
      theme = _ref.theme,
      type = _ref.type,
      filename = _ref.filename,
      monacoEditor = _ref.monacoEditor,
      className = _ref.className,
      style = _ref.style,
      close = _ref.close,
      onClose = _ref.onClose,
      hasMask = _ref.hasMask;

  var _useState = Object(react__WEBPACK_IMPORTED_MODULE_6__["useState"])('https://view.officeapps.live.com/op/view.aspx?src=http://testgs.educoder.net//rails/active_storage/blobs/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaHBCZz09IiwiZXhwIjpudWxsLCJwdXIiOiJibG9iX2lkIn19--03541f6234b93d7ac3b2d84e7eb0e6594a952945/1.ppt'),
      _useState2 = Object(_Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_slicedToArray__WEBPACK_IMPORTED_MODULE_5__[/* default */ "a"])(_useState, 2),
      src = _useState2[0],
      setSrc = _useState2[1];

  var _useState3 = Object(react__WEBPACK_IMPORTED_MODULE_6__["useState"])(""),
      _useState4 = Object(_Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_slicedToArray__WEBPACK_IMPORTED_MODULE_5__[/* default */ "a"])(_useState3, 2),
      token = _useState4[0],
      setToken = _useState4[1];

  var closeRef = Object(react__WEBPACK_IMPORTED_MODULE_6__["useRef"])();
  if (filename) monacoEditor.filename = filename;
  Object(react__WEBPACK_IMPORTED_MODULE_6__["useEffect"])(function () {
    var _document$cookie, _document$cookie$repl;

    var cookies = (_document$cookie = document.cookie) === null || _document$cookie === void 0 ? void 0 : (_document$cookie$repl = _document$cookie.replace(/\s/g, "")) === null || _document$cookie$repl === void 0 ? void 0 : _document$cookie$repl.split(";");
    cookies === null || cookies === void 0 ? void 0 : cookies.map(function (item) {
      var i = item.split("=");

      if (i[0] === '_educoder_session') {
        setToken(i[1]);
      }
    });
  }, []);

  var handleClick = function handleClick() {
    if (data.startsWith("http")) {
      handleDown();
      return;
    }

    Object(_utils_util__WEBPACK_IMPORTED_MODULE_10__[/* downloadFile */ "x"])(filename || 'educoder', data, filename);
  };

  var handleDown = function handleDown() {
    Object(_utils_util__WEBPACK_IMPORTED_MODULE_10__[/* downLoadLink */ "v"])('', data);
  };

  return /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_6___default.a.createElement("div", {
    style: Object(_Users_dingyongkang_Documents_workspace_zhiqing_educoder_node_modules_umijs_babel_preset_umi_node_modules_babel_runtime_helpers_esm_objectSpread2__WEBPACK_IMPORTED_MODULE_4__[/* default */ "a"])({}, style || {}),
    className: "".concat(hasMask && _index_less_modules__WEBPACK_IMPORTED_MODULE_7___default.a.bgBlack, " ").concat(!!type ? _index_less_modules__WEBPACK_IMPORTED_MODULE_7___default.a.wrp : "hide")
  }, close && /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_6___default.a.createElement("div", {
    className: _index_less_modules__WEBPACK_IMPORTED_MODULE_7___default.a.close,
    ref: closeRef
  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_6___default.a.createElement(antd_es_tooltip__WEBPACK_IMPORTED_MODULE_3__[/* default */ "a"], {
    title: "\u70B9\u51FB\u4E0B\u8F7D\u6B64\u6587\u4EF6",
    getPopupContainer: function getPopupContainer() {
      return closeRef.current;
    }
  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_6___default.a.createElement("span", {
    onClick: handleDown
  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_6___default.a.createElement("i", {
    className: "icon-quxiaozhiding"
  }))), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_6___default.a.createElement(antd_es_tooltip__WEBPACK_IMPORTED_MODULE_3__[/* default */ "a"], {
    title: "\u5173\u95ED",
    getPopupContainer: function getPopupContainer() {
      return closeRef.current;
    }
  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_6___default.a.createElement("span", {
    className: "",
    onClick: onClose
  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_6___default.a.createElement("i", {
    className: "icon-guanbi1"
  })))), /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_6___default.a.createElement("div", {
    className: "".concat(_index_less_modules__WEBPACK_IMPORTED_MODULE_7___default.a[className], " ").concat(className, " ").concat(_index_less_modules__WEBPACK_IMPORTED_MODULE_7___default.a.monaco, " ").concat(type === "txt" ? "show" : "hide")
  }, type === "txt" && /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_6___default.a.createElement(_components_monaco_editor__WEBPACK_IMPORTED_MODULE_9__[/* default */ "b"], monacoEditor)), type === "audio" && /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_6___default.a.createElement("audio", {
    src: "".concat((data === null || data === void 0 ? void 0 : data.indexOf("http://")) > -1 || (data === null || data === void 0 ? void 0 : data.indexOf("https://")) > -1 ? "" : "data:audio/mp3;base64,").concat(data),
    autoPlay: true
  }), type === "video" && /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_6___default.a.createElement(react__WEBPACK_IMPORTED_MODULE_6___default.a.Fragment, null, (data === null || data === void 0 ? void 0 : data.indexOf("http")) > -1 ? /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_6___default.a.createElement("video", {
    controls: true,
    src: "".concat(data),
    autoPlay: true
  }) : /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_6___default.a.createElement("video", {
    controls: true,
    src: "data:video/mp4;base64,".concat(data),
    autoPlay: true
  })), type === 'office' && /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_6___default.a.createElement("iframe", {
    src: "https://view.officeapps.live.com/op/embed.aspx?src=".concat(data, "?").concat(encodeURIComponent("disposition=office&token=".concat(token)))
  }), type === 'pdf' && /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_6___default.a.createElement("embed", {
    className: _index_less_modules__WEBPACK_IMPORTED_MODULE_7___default.a.embed,
    src: data
  }), type === "image" && /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_6___default.a.createElement("img", {
    src: "".concat((data === null || data === void 0 ? void 0 : data.indexOf("http://")) > -1 || (data === null || data === void 0 ? void 0 : data.indexOf("https://")) > -1 ? "" : "data:image/png;base64,").concat(data)
  }), type === "other" && /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_6___default.a.createElement("div", null, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_6___default.a.createElement(antd_es_button__WEBPACK_IMPORTED_MODULE_1__[/* default */ "a"], {
    type: "primary",
    size: "large",
    onClick: handleClick
  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_6___default.a.createElement(_ant_design_icons__WEBPACK_IMPORTED_MODULE_8__[/* default */ "a"], null), "\u70B9\u51FB\u4E0B\u8F7D")), type === "download" && /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_6___default.a.createElement(antd_es_button__WEBPACK_IMPORTED_MODULE_1__[/* default */ "a"], {
    type: "primary",
    size: "large",
    onClick: handleClick
  }, /*#__PURE__*/react__WEBPACK_IMPORTED_MODULE_6___default.a.createElement(_ant_design_icons__WEBPACK_IMPORTED_MODULE_8__[/* default */ "a"], null), "\u70B9\u51FB\u4E0B\u8F7D"));
});

/***/ }),

/***/ "p77/":
/*!****************************************************!*\
  !*** ./node_modules/codemirror/lib/codemirror.css ***!
  \****************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

// extracted by mini-css-extract-plugin

/***/ }),

/***/ "rAM+":
/*!*******************************************************************************************************************!*\
  !*** ./node_modules/@umijs/babel-preset-umi/node_modules/@babel/runtime/helpers/esm/createForOfIteratorHelper.js ***!
  \*******************************************************************************************************************/
/*! exports provided: default */
/*! exports used: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return _createForOfIteratorHelper; });
/* harmony import */ var _babel_runtime_helpers_esm_unsupportedIterableToArray__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! @babel/runtime/helpers/esm/unsupportedIterableToArray */ "Qw5x");

function _createForOfIteratorHelper(o, allowArrayLike) {
  var it;

  if (typeof Symbol === "undefined" || o[Symbol.iterator] == null) {
    if (Array.isArray(o) || (it = Object(_babel_runtime_helpers_esm_unsupportedIterableToArray__WEBPACK_IMPORTED_MODULE_0__[/* default */ "a"])(o)) || allowArrayLike && o && typeof o.length === "number") {
      if (it) o = it;
      var i = 0;

      var F = function F() {};

      return {
        s: F,
        n: function n() {
          if (i >= o.length) return {
            done: true
          };
          return {
            done: false,
            value: o[i++]
          };
        },
        e: function e(_e) {
          throw _e;
        },
        f: F
      };
    }

    throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
  }

  var normalCompletion = true,
      didErr = false,
      err;
  return {
    s: function s() {
      it = o[Symbol.iterator]();
    },
    n: function n() {
      var step = it.next();
      normalCompletion = step.done;
      return step;
    },
    e: function e(_e2) {
      didErr = true;
      err = _e2;
    },
    f: function f() {
      try {
        if (!normalCompletion && it["return"] != null) it["return"]();
      } finally {
        if (didErr) throw err;
      }
    }
  };
}

/***/ }),

/***/ "rUJ1":
/*!********************************************!*\
  !*** ./node_modules/marked/src/helpers.js ***!
  \********************************************/
/*! no static exports found */
/*! exports used: escape */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports) {

/**
 * Helpers
 */
const escapeTest = /[&<>"']/;
const escapeReplace = /[&<>"']/g;
const escapeTestNoEncode = /[<>"']|&(?!#?\w+;)/;
const escapeReplaceNoEncode = /[<>"']|&(?!#?\w+;)/g;
const escapeReplacements = {
  '&': '&amp;',
  '<': '&lt;',
  '>': '&gt;',
  '"': '&quot;',
  "'": '&#39;'
};
const getEscapeReplacement = (ch) => escapeReplacements[ch];
function escape(html, encode) {
  if (encode) {
    if (escapeTest.test(html)) {
      return html.replace(escapeReplace, getEscapeReplacement);
    }
  } else {
    if (escapeTestNoEncode.test(html)) {
      return html.replace(escapeReplaceNoEncode, getEscapeReplacement);
    }
  }

  return html;
}

const unescapeTest = /&(#(?:\d+)|(?:#x[0-9A-Fa-f]+)|(?:\w+));?/ig;

function unescape(html) {
  // explicitly match decimal, hex, and named HTML entities
  return html.replace(unescapeTest, (_, n) => {
    n = n.toLowerCase();
    if (n === 'colon') return ':';
    if (n.charAt(0) === '#') {
      return n.charAt(1) === 'x'
        ? String.fromCharCode(parseInt(n.substring(2), 16))
        : String.fromCharCode(+n.substring(1));
    }
    return '';
  });
}

const caret = /(^|[^\[])\^/g;
function edit(regex, opt) {
  regex = regex.source || regex;
  opt = opt || '';
  const obj = {
    replace: (name, val) => {
      val = val.source || val;
      val = val.replace(caret, '$1');
      regex = regex.replace(name, val);
      return obj;
    },
    getRegex: () => {
      return new RegExp(regex, opt);
    }
  };
  return obj;
}

const nonWordAndColonTest = /[^\w:]/g;
const originIndependentUrl = /^$|^[a-z][a-z0-9+.-]*:|^[?#]/i;
function cleanUrl(sanitize, base, href) {
  if (sanitize) {
    let prot;
    try {
      prot = decodeURIComponent(unescape(href))
        .replace(nonWordAndColonTest, '')
        .toLowerCase();
    } catch (e) {
      return null;
    }
    if (prot.indexOf('javascript:') === 0 || prot.indexOf('vbscript:') === 0 || prot.indexOf('data:') === 0) {
      return null;
    }
  }
  if (base && !originIndependentUrl.test(href)) {
    href = resolveUrl(base, href);
  }
  try {
    href = encodeURI(href).replace(/%25/g, '%');
  } catch (e) {
    return null;
  }
  return href;
}

const baseUrls = {};
const justDomain = /^[^:]+:\/*[^/]*$/;
const protocol = /^([^:]+:)[\s\S]*$/;
const domain = /^([^:]+:\/*[^/]*)[\s\S]*$/;

function resolveUrl(base, href) {
  if (!baseUrls[' ' + base]) {
    // we can ignore everything in base after the last slash of its path component,
    // but we might need to add _that_
    // https://tools.ietf.org/html/rfc3986#section-3
    if (justDomain.test(base)) {
      baseUrls[' ' + base] = base + '/';
    } else {
      baseUrls[' ' + base] = rtrim(base, '/', true);
    }
  }
  base = baseUrls[' ' + base];
  const relativeBase = base.indexOf(':') === -1;

  if (href.substring(0, 2) === '//') {
    if (relativeBase) {
      return href;
    }
    return base.replace(protocol, '$1') + href;
  } else if (href.charAt(0) === '/') {
    if (relativeBase) {
      return href;
    }
    return base.replace(domain, '$1') + href;
  } else {
    return base + href;
  }
}

const noopTest = { exec: function noopTest() {} };

function merge(obj) {
  let i = 1,
    target,
    key;

  for (; i < arguments.length; i++) {
    target = arguments[i];
    for (key in target) {
      if (Object.prototype.hasOwnProperty.call(target, key)) {
        obj[key] = target[key];
      }
    }
  }

  return obj;
}

function splitCells(tableRow, count) {
  // ensure that every cell-delimiting pipe has a space
  // before it to distinguish it from an escaped pipe
  const row = tableRow.replace(/\|/g, (match, offset, str) => {
      let escaped = false,
        curr = offset;
      while (--curr >= 0 && str[curr] === '\\') escaped = !escaped;
      if (escaped) {
        // odd number of slashes means | is escaped
        // so we leave it alone
        return '|';
      } else {
        // add space before unescaped |
        return ' |';
      }
    }),
    cells = row.split(/ \|/);
  let i = 0;

  if (cells.length > count) {
    cells.splice(count);
  } else {
    while (cells.length < count) cells.push('');
  }

  for (; i < cells.length; i++) {
    // leading or trailing whitespace is ignored per the gfm spec
    cells[i] = cells[i].trim().replace(/\\\|/g, '|');
  }
  return cells;
}

// Remove trailing 'c's. Equivalent to str.replace(/c*$/, '').
// /c*$/ is vulnerable to REDOS.
// invert: Remove suffix of non-c chars instead. Default falsey.
function rtrim(str, c, invert) {
  const l = str.length;
  if (l === 0) {
    return '';
  }

  // Length of suffix matching the invert condition.
  let suffLen = 0;

  // Step left until we fail to match the invert condition.
  while (suffLen < l) {
    const currChar = str.charAt(l - suffLen - 1);
    if (currChar === c && !invert) {
      suffLen++;
    } else if (currChar !== c && invert) {
      suffLen++;
    } else {
      break;
    }
  }

  return str.substr(0, l - suffLen);
}

function findClosingBracket(str, b) {
  if (str.indexOf(b[1]) === -1) {
    return -1;
  }
  const l = str.length;
  let level = 0,
    i = 0;
  for (; i < l; i++) {
    if (str[i] === '\\') {
      i++;
    } else if (str[i] === b[0]) {
      level++;
    } else if (str[i] === b[1]) {
      level--;
      if (level < 0) {
        return i;
      }
    }
  }
  return -1;
}

function checkSanitizeDeprecation(opt) {
  if (opt && opt.sanitize && !opt.silent) {
    console.warn('marked(): sanitize and sanitizer parameters are deprecated since version 0.7.0, should not be used and will be removed in the future. Read more here: https://marked.js.org/#/USING_ADVANCED.md#options');
  }
}

module.exports = {
  escape,
  unescape,
  edit,
  cleanUrl,
  resolveUrl,
  noopTest,
  merge,
  splitCells,
  rtrim,
  findClosingBracket,
  checkSanitizeDeprecation
};


/***/ }),

/***/ "t23M":
/*!*****************************************************!*\
  !*** ./node_modules/rc-resize-observer/es/index.js ***!
  \*****************************************************/
/*! exports provided: default */
/*! exports used: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony import */ var _babel_runtime_helpers_esm_objectSpread2__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! @babel/runtime/helpers/esm/objectSpread2 */ "VTBJ");
/* harmony import */ var _babel_runtime_helpers_esm_classCallCheck__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! @babel/runtime/helpers/esm/classCallCheck */ "1OyB");
/* harmony import */ var _babel_runtime_helpers_esm_createClass__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! @babel/runtime/helpers/esm/createClass */ "vuIU");
/* harmony import */ var _babel_runtime_helpers_esm_inherits__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! @babel/runtime/helpers/esm/inherits */ "Ji7U");
/* harmony import */ var _babel_runtime_helpers_esm_createSuper__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! @babel/runtime/helpers/esm/createSuper */ "LK+K");
/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! react */ "cDcd");
/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_5___default = /*#__PURE__*/__webpack_require__.n(react__WEBPACK_IMPORTED_MODULE_5__);
/* harmony import */ var rc_util_es_Dom_findDOMNode__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! rc-util/es/Dom/findDOMNode */ "m+aA");
/* harmony import */ var rc_util_es_Children_toArray__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! rc-util/es/Children/toArray */ "Zm9Q");
/* harmony import */ var rc_util_es_warning__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! rc-util/es/warning */ "Kwbf");
/* harmony import */ var rc_util_es_ref__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(/*! rc-util/es/ref */ "c+Xe");
/* harmony import */ var resize_observer_polyfill__WEBPACK_IMPORTED_MODULE_10__ = __webpack_require__(/*! resize-observer-polyfill */ "bdgK");











var INTERNAL_PREFIX_KEY = 'rc-observer-key'; // Still need to be compatible with React 15, we use class component here

var ReactResizeObserver = /*#__PURE__*/function (_React$Component) {
  Object(_babel_runtime_helpers_esm_inherits__WEBPACK_IMPORTED_MODULE_3__[/* default */ "a"])(ReactResizeObserver, _React$Component);

  var _super = Object(_babel_runtime_helpers_esm_createSuper__WEBPACK_IMPORTED_MODULE_4__[/* default */ "a"])(ReactResizeObserver);

  function ReactResizeObserver() {
    var _this;

    Object(_babel_runtime_helpers_esm_classCallCheck__WEBPACK_IMPORTED_MODULE_1__[/* default */ "a"])(this, ReactResizeObserver);

    _this = _super.apply(this, arguments);
    _this.resizeObserver = null;
    _this.childNode = null;
    _this.currentElement = null;
    _this.state = {
      width: 0,
      height: 0,
      offsetHeight: 0,
      offsetWidth: 0
    };

    _this.onResize = function (entries) {
      var onResize = _this.props.onResize;
      var target = entries[0].target;

      var _target$getBoundingCl = target.getBoundingClientRect(),
          width = _target$getBoundingCl.width,
          height = _target$getBoundingCl.height;

      var offsetWidth = target.offsetWidth,
          offsetHeight = target.offsetHeight;
      /**
       * Resize observer trigger when content size changed.
       * In most case we just care about element size,
       * let's use `boundary` instead of `contentRect` here to avoid shaking.
       */

      var fixedWidth = Math.floor(width);
      var fixedHeight = Math.floor(height);

      if (_this.state.width !== fixedWidth || _this.state.height !== fixedHeight || _this.state.offsetWidth !== offsetWidth || _this.state.offsetHeight !== offsetHeight) {
        var size = {
          width: fixedWidth,
          height: fixedHeight,
          offsetWidth: offsetWidth,
          offsetHeight: offsetHeight
        };

        _this.setState(size);

        if (onResize) {
          // defer the callback but not defer to next frame
          Promise.resolve().then(function () {
            onResize(Object(_babel_runtime_helpers_esm_objectSpread2__WEBPACK_IMPORTED_MODULE_0__[/* default */ "a"])(Object(_babel_runtime_helpers_esm_objectSpread2__WEBPACK_IMPORTED_MODULE_0__[/* default */ "a"])({}, size), {}, {
              offsetWidth: offsetWidth,
              offsetHeight: offsetHeight
            }));
          });
        }
      }
    };

    _this.setChildNode = function (node) {
      _this.childNode = node;
    };

    return _this;
  }

  Object(_babel_runtime_helpers_esm_createClass__WEBPACK_IMPORTED_MODULE_2__[/* default */ "a"])(ReactResizeObserver, [{
    key: "componentDidMount",
    value: function componentDidMount() {
      this.onComponentUpdated();
    }
  }, {
    key: "componentDidUpdate",
    value: function componentDidUpdate() {
      this.onComponentUpdated();
    }
  }, {
    key: "componentWillUnmount",
    value: function componentWillUnmount() {
      this.destroyObserver();
    }
  }, {
    key: "onComponentUpdated",
    value: function onComponentUpdated() {
      var disabled = this.props.disabled; // Unregister if disabled

      if (disabled) {
        this.destroyObserver();
        return;
      } // Unregister if element changed


      var element = Object(rc_util_es_Dom_findDOMNode__WEBPACK_IMPORTED_MODULE_6__[/* default */ "a"])(this.childNode || this);
      var elementChanged = element !== this.currentElement;

      if (elementChanged) {
        this.destroyObserver();
        this.currentElement = element;
      }

      if (!this.resizeObserver && element) {
        this.resizeObserver = new resize_observer_polyfill__WEBPACK_IMPORTED_MODULE_10__["default"](this.onResize);
        this.resizeObserver.observe(element);
      }
    }
  }, {
    key: "destroyObserver",
    value: function destroyObserver() {
      if (this.resizeObserver) {
        this.resizeObserver.disconnect();
        this.resizeObserver = null;
      }
    }
  }, {
    key: "render",
    value: function render() {
      var children = this.props.children;
      var childNodes = Object(rc_util_es_Children_toArray__WEBPACK_IMPORTED_MODULE_7__[/* default */ "a"])(children);

      if (childNodes.length > 1) {
        Object(rc_util_es_warning__WEBPACK_IMPORTED_MODULE_8__[/* default */ "a"])(false, 'Find more than one child node with `children` in ResizeObserver. Will only observe first one.');
      } else if (childNodes.length === 0) {
        Object(rc_util_es_warning__WEBPACK_IMPORTED_MODULE_8__[/* default */ "a"])(false, '`children` of ResizeObserver is empty. Nothing is in observe.');
        return null;
      }

      var childNode = childNodes[0];

      if (react__WEBPACK_IMPORTED_MODULE_5__["isValidElement"](childNode) && Object(rc_util_es_ref__WEBPACK_IMPORTED_MODULE_9__[/* supportRef */ "c"])(childNode)) {
        var ref = childNode.ref;
        childNodes[0] = react__WEBPACK_IMPORTED_MODULE_5__["cloneElement"](childNode, {
          ref: Object(rc_util_es_ref__WEBPACK_IMPORTED_MODULE_9__[/* composeRef */ "a"])(ref, this.setChildNode)
        });
      }

      return childNodes.length === 1 ? childNodes[0] : childNodes.map(function (node, index) {
        if (!react__WEBPACK_IMPORTED_MODULE_5__["isValidElement"](node) || 'key' in node && node.key !== null) {
          return node;
        }

        return react__WEBPACK_IMPORTED_MODULE_5__["cloneElement"](node, {
          key: "".concat(INTERNAL_PREFIX_KEY, "-").concat(index)
        });
      });
    }
  }]);

  return ReactResizeObserver;
}(react__WEBPACK_IMPORTED_MODULE_5__["Component"]);

ReactResizeObserver.displayName = 'ResizeObserver';
/* harmony default export */ __webpack_exports__["a"] = (ReactResizeObserver);

/***/ }),

/***/ "ulZh":
/*!*****************************************!*\
  !*** ./node_modules/hls.js/dist/hls.js ***!
  \*****************************************/
/*! no static exports found */
/*! exports used: default */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

typeof window !== "undefined" &&
(function webpackUniversalModuleDefinition(root, factory) {
	if(true)
		module.exports = factory();
	else {}
})(this, function() {
return /******/ (function(modules) { // webpackBootstrap
/******/ 	// The module cache
/******/ 	var installedModules = {};
/******/
/******/ 	// The require function
/******/ 	function __webpack_require__(moduleId) {
/******/
/******/ 		// Check if module is in cache
/******/ 		if(installedModules[moduleId]) {
/******/ 			return installedModules[moduleId].exports;
/******/ 		}
/******/ 		// Create a new module (and put it into the cache)
/******/ 		var module = installedModules[moduleId] = {
/******/ 			i: moduleId,
/******/ 			l: false,
/******/ 			exports: {}
/******/ 		};
/******/
/******/ 		// Execute the module function
/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
/******/
/******/ 		// Flag the module as loaded
/******/ 		module.l = true;
/******/
/******/ 		// Return the exports of the module
/******/ 		return module.exports;
/******/ 	}
/******/
/******/
/******/ 	// expose the modules object (__webpack_modules__)
/******/ 	__webpack_require__.m = modules;
/******/
/******/ 	// expose the module cache
/******/ 	__webpack_require__.c = installedModules;
/******/
/******/ 	// define getter function for harmony exports
/******/ 	__webpack_require__.d = function(exports, name, getter) {
/******/ 		if(!__webpack_require__.o(exports, name)) {
/******/ 			Object.defineProperty(exports, name, { enumerable: true, get: getter });
/******/ 		}
/******/ 	};
/******/
/******/ 	// define __esModule on exports
/******/ 	__webpack_require__.r = function(exports) {
/******/ 		if(typeof Symbol !== 'undefined' && Symbol.toStringTag) {
/******/ 			Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
/******/ 		}
/******/ 		Object.defineProperty(exports, '__esModule', { value: true });
/******/ 	};
/******/
/******/ 	// create a fake namespace object
/******/ 	// mode & 1: value is a module id, require it
/******/ 	// mode & 2: merge all properties of value into the ns
/******/ 	// mode & 4: return value when already ns object
/******/ 	// mode & 8|1: behave like require
/******/ 	__webpack_require__.t = function(value, mode) {
/******/ 		if(mode & 1) value = __webpack_require__(value);
/******/ 		if(mode & 8) return value;
/******/ 		if((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;
/******/ 		var ns = Object.create(null);
/******/ 		__webpack_require__.r(ns);
/******/ 		Object.defineProperty(ns, 'default', { enumerable: true, value: value });
/******/ 		if(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));
/******/ 		return ns;
/******/ 	};
/******/
/******/ 	// getDefaultExport function for compatibility with non-harmony modules
/******/ 	__webpack_require__.n = function(module) {
/******/ 		var getter = module && module.__esModule ?
/******/ 			function getDefault() { return module['default']; } :
/******/ 			function getModuleExports() { return module; };
/******/ 		__webpack_require__.d(getter, 'a', getter);
/******/ 		return getter;
/******/ 	};
/******/
/******/ 	// Object.prototype.hasOwnProperty.call
/******/ 	__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
/******/
/******/ 	// __webpack_public_path__
/******/ 	__webpack_require__.p = "/dist/";
/******/
/******/
/******/ 	// Load entry module and return exports
/******/ 	return __webpack_require__(__webpack_require__.s = "./src/hls.ts");
/******/ })
/************************************************************************/
/******/ ({

/***/ "./node_modules/eventemitter3/index.js":
/*!*********************************************!*\
  !*** ./node_modules/eventemitter3/index.js ***!
  \*********************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var has = Object.prototype.hasOwnProperty
  , prefix = '~';

/**
 * Constructor to create a storage for our `EE` objects.
 * An `Events` instance is a plain object whose properties are event names.
 *
 * @constructor
 * @private
 */
function Events() {}

//
// We try to not inherit from `Object.prototype`. In some engines creating an
// instance in this way is faster than calling `Object.create(null)` directly.
// If `Object.create(null)` is not supported we prefix the event names with a
// character to make sure that the built-in object properties are not
// overridden or used as an attack vector.
//
if (Object.create) {
  Events.prototype = Object.create(null);

  //
  // This hack is needed because the `__proto__` property is still inherited in
  // some old browsers like Android 4, iPhone 5.1, Opera 11 and Safari 5.
  //
  if (!new Events().__proto__) prefix = false;
}

/**
 * Representation of a single event listener.
 *
 * @param {Function} fn The listener function.
 * @param {*} context The context to invoke the listener with.
 * @param {Boolean} [once=false] Specify if the listener is a one-time listener.
 * @constructor
 * @private
 */
function EE(fn, context, once) {
  this.fn = fn;
  this.context = context;
  this.once = once || false;
}

/**
 * Add a listener for a given event.
 *
 * @param {EventEmitter} emitter Reference to the `EventEmitter` instance.
 * @param {(String|Symbol)} event The event name.
 * @param {Function} fn The listener function.
 * @param {*} context The context to invoke the listener with.
 * @param {Boolean} once Specify if the listener is a one-time listener.
 * @returns {EventEmitter}
 * @private
 */
function addListener(emitter, event, fn, context, once) {
  if (typeof fn !== 'function') {
    throw new TypeError('The listener must be a function');
  }

  var listener = new EE(fn, context || emitter, once)
    , evt = prefix ? prefix + event : event;

  if (!emitter._events[evt]) emitter._events[evt] = listener, emitter._eventsCount++;
  else if (!emitter._events[evt].fn) emitter._events[evt].push(listener);
  else emitter._events[evt] = [emitter._events[evt], listener];

  return emitter;
}

/**
 * Clear event by name.
 *
 * @param {EventEmitter} emitter Reference to the `EventEmitter` instance.
 * @param {(String|Symbol)} evt The Event name.
 * @private
 */
function clearEvent(emitter, evt) {
  if (--emitter._eventsCount === 0) emitter._events = new Events();
  else delete emitter._events[evt];
}

/**
 * Minimal `EventEmitter` interface that is molded against the Node.js
 * `EventEmitter` interface.
 *
 * @constructor
 * @public
 */
function EventEmitter() {
  this._events = new Events();
  this._eventsCount = 0;
}

/**
 * Return an array listing the events for which the emitter has registered
 * listeners.
 *
 * @returns {Array}
 * @public
 */
EventEmitter.prototype.eventNames = function eventNames() {
  var names = []
    , events
    , name;

  if (this._eventsCount === 0) return names;

  for (name in (events = this._events)) {
    if (has.call(events, name)) names.push(prefix ? name.slice(1) : name);
  }

  if (Object.getOwnPropertySymbols) {
    return names.concat(Object.getOwnPropertySymbols(events));
  }

  return names;
};

/**
 * Return the listeners registered for a given event.
 *
 * @param {(String|Symbol)} event The event name.
 * @returns {Array} The registered listeners.
 * @public
 */
EventEmitter.prototype.listeners = function listeners(event) {
  var evt = prefix ? prefix + event : event
    , handlers = this._events[evt];

  if (!handlers) return [];
  if (handlers.fn) return [handlers.fn];

  for (var i = 0, l = handlers.length, ee = new Array(l); i < l; i++) {
    ee[i] = handlers[i].fn;
  }

  return ee;
};

/**
 * Return the number of listeners listening to a given event.
 *
 * @param {(String|Symbol)} event The event name.
 * @returns {Number} The number of listeners.
 * @public
 */
EventEmitter.prototype.listenerCount = function listenerCount(event) {
  var evt = prefix ? prefix + event : event
    , listeners = this._events[evt];

  if (!listeners) return 0;
  if (listeners.fn) return 1;
  return listeners.length;
};

/**
 * Calls each of the listeners registered for a given event.
 *
 * @param {(String|Symbol)} event The event name.
 * @returns {Boolean} `true` if the event had listeners, else `false`.
 * @public
 */
EventEmitter.prototype.emit = function emit(event, a1, a2, a3, a4, a5) {
  var evt = prefix ? prefix + event : event;

  if (!this._events[evt]) return false;

  var listeners = this._events[evt]
    , len = arguments.length
    , args
    , i;

  if (listeners.fn) {
    if (listeners.once) this.removeListener(event, listeners.fn, undefined, true);

    switch (len) {
      case 1: return listeners.fn.call(listeners.context), true;
      case 2: return listeners.fn.call(listeners.context, a1), true;
      case 3: return listeners.fn.call(listeners.context, a1, a2), true;
      case 4: return listeners.fn.call(listeners.context, a1, a2, a3), true;
      case 5: return listeners.fn.call(listeners.context, a1, a2, a3, a4), true;
      case 6: return listeners.fn.call(listeners.context, a1, a2, a3, a4, a5), true;
    }

    for (i = 1, args = new Array(len -1); i < len; i++) {
      args[i - 1] = arguments[i];
    }

    listeners.fn.apply(listeners.context, args);
  } else {
    var length = listeners.length
      , j;

    for (i = 0; i < length; i++) {
      if (listeners[i].once) this.removeListener(event, listeners[i].fn, undefined, true);

      switch (len) {
        case 1: listeners[i].fn.call(listeners[i].context); break;
        case 2: listeners[i].fn.call(listeners[i].context, a1); break;
        case 3: listeners[i].fn.call(listeners[i].context, a1, a2); break;
        case 4: listeners[i].fn.call(listeners[i].context, a1, a2, a3); break;
        default:
          if (!args) for (j = 1, args = new Array(len -1); j < len; j++) {
            args[j - 1] = arguments[j];
          }

          listeners[i].fn.apply(listeners[i].context, args);
      }
    }
  }

  return true;
};

/**
 * Add a listener for a given event.
 *
 * @param {(String|Symbol)} event The event name.
 * @param {Function} fn The listener function.
 * @param {*} [context=this] The context to invoke the listener with.
 * @returns {EventEmitter} `this`.
 * @public
 */
EventEmitter.prototype.on = function on(event, fn, context) {
  return addListener(this, event, fn, context, false);
};

/**
 * Add a one-time listener for a given event.
 *
 * @param {(String|Symbol)} event The event name.
 * @param {Function} fn The listener function.
 * @param {*} [context=this] The context to invoke the listener with.
 * @returns {EventEmitter} `this`.
 * @public
 */
EventEmitter.prototype.once = function once(event, fn, context) {
  return addListener(this, event, fn, context, true);
};

/**
 * Remove the listeners of a given event.
 *
 * @param {(String|Symbol)} event The event name.
 * @param {Function} fn Only remove the listeners that match this function.
 * @param {*} context Only remove the listeners that have this context.
 * @param {Boolean} once Only remove one-time listeners.
 * @returns {EventEmitter} `this`.
 * @public
 */
EventEmitter.prototype.removeListener = function removeListener(event, fn, context, once) {
  var evt = prefix ? prefix + event : event;

  if (!this._events[evt]) return this;
  if (!fn) {
    clearEvent(this, evt);
    return this;
  }

  var listeners = this._events[evt];

  if (listeners.fn) {
    if (
      listeners.fn === fn &&
      (!once || listeners.once) &&
      (!context || listeners.context === context)
    ) {
      clearEvent(this, evt);
    }
  } else {
    for (var i = 0, events = [], length = listeners.length; i < length; i++) {
      if (
        listeners[i].fn !== fn ||
        (once && !listeners[i].once) ||
        (context && listeners[i].context !== context)
      ) {
        events.push(listeners[i]);
      }
    }

    //
    // Reset the array, or remove it completely if we have no more listeners.
    //
    if (events.length) this._events[evt] = events.length === 1 ? events[0] : events;
    else clearEvent(this, evt);
  }

  return this;
};

/**
 * Remove all listeners, or those of the specified event.
 *
 * @param {(String|Symbol)} [event] The event name.
 * @returns {EventEmitter} `this`.
 * @public
 */
EventEmitter.prototype.removeAllListeners = function removeAllListeners(event) {
  var evt;

  if (event) {
    evt = prefix ? prefix + event : event;
    if (this._events[evt]) clearEvent(this, evt);
  } else {
    this._events = new Events();
    this._eventsCount = 0;
  }

  return this;
};

//
// Alias methods names because people roll like that.
//
EventEmitter.prototype.off = EventEmitter.prototype.removeListener;
EventEmitter.prototype.addListener = EventEmitter.prototype.on;

//
// Expose the prefix.
//
EventEmitter.prefixed = prefix;

//
// Allow `EventEmitter` to be imported as module namespace.
//
EventEmitter.EventEmitter = EventEmitter;

//
// Expose the module.
//
if (true) {
  module.exports = EventEmitter;
}


/***/ }),

/***/ "./node_modules/url-toolkit/src/url-toolkit.js":
/*!*****************************************************!*\
  !*** ./node_modules/url-toolkit/src/url-toolkit.js ***!
  \*****************************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

// see https://tools.ietf.org/html/rfc1808

(function (root) {
  var URL_REGEX =
    /^((?:[a-zA-Z0-9+\-.]+:)?)(\/\/[^\/?#]*)?((?:[^\/?#]*\/)*[^;?#]*)?(;[^?#]*)?(\?[^#]*)?(#[^]*)?$/;
  var FIRST_SEGMENT_REGEX = /^([^\/?#]*)([^]*)$/;
  var SLASH_DOT_REGEX = /(?:\/|^)\.(?=\/)/g;
  var SLASH_DOT_DOT_REGEX = /(?:\/|^)\.\.\/(?!\.\.\/)[^\/]*(?=\/)/g;

  var URLToolkit = {
    // If opts.alwaysNormalize is true then the path will always be normalized even when it starts with / or //
    // E.g
    // With opts.alwaysNormalize = false (default, spec compliant)
    // http://a.com/b/cd + /e/f/../g => http://a.com/e/f/../g
    // With opts.alwaysNormalize = true (not spec compliant)
    // http://a.com/b/cd + /e/f/../g => http://a.com/e/g
    buildAbsoluteURL: function (baseURL, relativeURL, opts) {
      opts = opts || {};
      // remove any remaining space and CRLF
      baseURL = baseURL.trim();
      relativeURL = relativeURL.trim();
      if (!relativeURL) {
        // 2a) If the embedded URL is entirely empty, it inherits the
        // entire base URL (i.e., is set equal to the base URL)
        // and we are done.
        if (!opts.alwaysNormalize) {
          return baseURL;
        }
        var basePartsForNormalise = URLToolkit.parseURL(baseURL);
        if (!basePartsForNormalise) {
          throw new Error('Error trying to parse base URL.');
        }
        basePartsForNormalise.path = URLToolkit.normalizePath(
          basePartsForNormalise.path
        );
        return URLToolkit.buildURLFromParts(basePartsForNormalise);
      }
      var relativeParts = URLToolkit.parseURL(relativeURL);
      if (!relativeParts) {
        throw new Error('Error trying to parse relative URL.');
      }
      if (relativeParts.scheme) {
        // 2b) If the embedded URL starts with a scheme name, it is
        // interpreted as an absolute URL and we are done.
        if (!opts.alwaysNormalize) {
          return relativeURL;
        }
        relativeParts.path = URLToolkit.normalizePath(relativeParts.path);
        return URLToolkit.buildURLFromParts(relativeParts);
      }
      var baseParts = URLToolkit.parseURL(baseURL);
      if (!baseParts) {
        throw new Error('Error trying to parse base URL.');
      }
      if (!baseParts.netLoc && baseParts.path && baseParts.path[0] !== '/') {
        // If netLoc missing and path doesn't start with '/', assume everthing before the first '/' is the netLoc
        // This causes 'example.com/a' to be handled as '//example.com/a' instead of '/example.com/a'
        var pathParts = FIRST_SEGMENT_REGEX.exec(baseParts.path);
        baseParts.netLoc = pathParts[1];
        baseParts.path = pathParts[2];
      }
      if (baseParts.netLoc && !baseParts.path) {
        baseParts.path = '/';
      }
      var builtParts = {
        // 2c) Otherwise, the embedded URL inherits the scheme of
        // the base URL.
        scheme: baseParts.scheme,
        netLoc: relativeParts.netLoc,
        path: null,
        params: relativeParts.params,
        query: relativeParts.query,
        fragment: relativeParts.fragment,
      };
      if (!relativeParts.netLoc) {
        // 3) If the embedded URL's <net_loc> is non-empty, we skip to
        // Step 7.  Otherwise, the embedded URL inherits the <net_loc>
        // (if any) of the base URL.
        builtParts.netLoc = baseParts.netLoc;
        // 4) If the embedded URL path is preceded by a slash "/", the
        // path is not relative and we skip to Step 7.
        if (relativeParts.path[0] !== '/') {
          if (!relativeParts.path) {
            // 5) If the embedded URL path is empty (and not preceded by a
            // slash), then the embedded URL inherits the base URL path
            builtParts.path = baseParts.path;
            // 5a) if the embedded URL's <params> is non-empty, we skip to
            // step 7; otherwise, it inherits the <params> of the base
            // URL (if any) and
            if (!relativeParts.params) {
              builtParts.params = baseParts.params;
              // 5b) if the embedded URL's <query> is non-empty, we skip to
              // step 7; otherwise, it inherits the <query> of the base
              // URL (if any) and we skip to step 7.
              if (!relativeParts.query) {
                builtParts.query = baseParts.query;
              }
            }
          } else {
            // 6) The last segment of the base URL's path (anything
            // following the rightmost slash "/", or the entire path if no
            // slash is present) is removed and the embedded URL's path is
            // appended in its place.
            var baseURLPath = baseParts.path;
            var newPath =
              baseURLPath.substring(0, baseURLPath.lastIndexOf('/') + 1) +
              relativeParts.path;
            builtParts.path = URLToolkit.normalizePath(newPath);
          }
        }
      }
      if (builtParts.path === null) {
        builtParts.path = opts.alwaysNormalize
          ? URLToolkit.normalizePath(relativeParts.path)
          : relativeParts.path;
      }
      return URLToolkit.buildURLFromParts(builtParts);
    },
    parseURL: function (url) {
      var parts = URL_REGEX.exec(url);
      if (!parts) {
        return null;
      }
      return {
        scheme: parts[1] || '',
        netLoc: parts[2] || '',
        path: parts[3] || '',
        params: parts[4] || '',
        query: parts[5] || '',
        fragment: parts[6] || '',
      };
    },
    normalizePath: function (path) {
      // The following operations are
      // then applied, in order, to the new path:
      // 6a) All occurrences of "./", where "." is a complete path
      // segment, are removed.
      // 6b) If the path ends with "." as a complete path segment,
      // that "." is removed.
      path = path.split('').reverse().join('').replace(SLASH_DOT_REGEX, '');
      // 6c) All occurrences of "<segment>/../", where <segment> is a
      // complete path segment not equal to "..", are removed.
      // Removal of these path segments is performed iteratively,
      // removing the leftmost matching pattern on each iteration,
      // until no matching pattern remains.
      // 6d) If the path ends with "<segment>/..", where <segment> is a
      // complete path segment not equal to "..", that
      // "<segment>/.." is removed.
      while (
        path.length !== (path = path.replace(SLASH_DOT_DOT_REGEX, '')).length
      ) {}
      return path.split('').reverse().join('');
    },
    buildURLFromParts: function (parts) {
      return (
        parts.scheme +
        parts.netLoc +
        parts.path +
        parts.params +
        parts.query +
        parts.fragment
      );
    },
  };

  if (true)
    module.exports = URLToolkit;
  else {}
})(this);


/***/ }),

/***/ "./node_modules/webworkify-webpack/index.js":
/*!**************************************************!*\
  !*** ./node_modules/webworkify-webpack/index.js ***!
  \**************************************************/
/*! no static exports found */
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function webpackBootstrapFunc (modules) {
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  var f = __webpack_require__(__webpack_require__.s = ENTRY_MODULE)
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}

var moduleNameReqExp = '[\\.|\\-|\\+|\\w|\/|@]+'
var dependencyRegExp = '\\(\\s*(\/\\*.*?\\*\/)?\\s*.*?(' + moduleNameReqExp + ').*?\\)' // additional chars when output.pathinfo is true

// http://stackoverflow.com/a/2593661/130442
function quoteRegExp (str) {
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}

function isNumeric(n) {
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}

function getModuleDependencies (sources, module, queueName) {
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}

function hasValuesInQueues (queues) {
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}

function getRequiredModules (sources, moduleId) {
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  while (hasValuesInQueues(modulesQueue)) {
    var queues = Object.keys(modulesQueue)
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      var queue = modulesQueue[queueName]
      var moduleToCheck = queue.pop()
      seenModules[queueName] = seenModules[queueName] || {}
      if (seenModules[queueName][moduleToCheck] || !sources[queueName][moduleToCheck]) continue
      seenModules[queueName][moduleToCheck] = true
      requiredModules[queueName] = requiredModules[queueName] || []
      requiredModules[queueName].push(moduleToCheck)
      var newModules = getModuleDependencies(sources, sources[queueName][moduleToCheck], queueName)
      var newModulesKeys = Object.keys(newModules)
      for (var j = 0; j < newModulesKeys.length; j++) {
        modulesQueue[newModulesKeys[j]] = modulesQueue[newModulesKeys[j]] || []
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module.exports = function (moduleId, options) {
  options = options || {}
  var sources = {
    main: __webpack_require__.m
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  var requiredModules = options.all ? { main: Object.keys(sources.main) } : getRequiredModules(sources, moduleId)

  var src = ''

  Object.keys(requiredModules).filter(function (m) { return m !== 'main' }).forEach(function (module) {
    var entryModule = 0
    while (requiredModules[module][entryModule]) {
      entryModule++
    }
    requiredModules[module].push(entryModule)
    sources[module][entryModule] = '(function(module, exports, __webpack_require__) { module.exports = __webpack_require__; })'
    src = src + 'var ' + module + ' = (' + webpackBootstrapFunc.toString().replace('ENTRY_MODULE', JSON.stringify(entryModule)) + ')({' + requiredModules[module].map(function (id) { return '' + JSON.stringify(id) + ': ' + sources[module][id].toString() }).join(',') + '});\n'
  })

  src = src + 'new ((' + webpackBootstrapFunc.toString().replace('ENTRY_MODULE', JSON.stringify(moduleId)) + ')({' + requiredModules.main.map(function (id) { return '' + JSON.stringify(id) + ': ' + sources.main[id].toString() }).join(',') + '}))(self);'

  var blob = new window.Blob([src], { type: 'text/javascript' })
  if (options.bare) { return blob }

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}


/***/ }),

/***/ "./src/config.ts":
/*!***********************!*\
  !*** ./src/config.ts ***!
  \***********************/
/*! exports provided: hlsDefaultConfig, mergeConfig, enableStreamingMode */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "hlsDefaultConfig", function() { return hlsDefaultConfig; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "mergeConfig", function() { return mergeConfig; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "enableStreamingMode", function() { return enableStreamingMode; });
/* harmony import */ var _controller_abr_controller__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./controller/abr-controller */ "./src/controller/abr-controller.ts");
/* harmony import */ var _controller_audio_stream_controller__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./controller/audio-stream-controller */ "./src/controller/audio-stream-controller.ts");
/* harmony import */ var _controller_audio_track_controller__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./controller/audio-track-controller */ "./src/controller/audio-track-controller.ts");
/* harmony import */ var _controller_subtitle_stream_controller__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./controller/subtitle-stream-controller */ "./src/controller/subtitle-stream-controller.ts");
/* harmony import */ var _controller_subtitle_track_controller__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ./controller/subtitle-track-controller */ "./src/controller/subtitle-track-controller.ts");
/* harmony import */ var _controller_buffer_controller__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ./controller/buffer-controller */ "./src/controller/buffer-controller.ts");
/* harmony import */ var _controller_timeline_controller__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ./controller/timeline-controller */ "./src/controller/timeline-controller.ts");
/* harmony import */ var _controller_cap_level_controller__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ./controller/cap-level-controller */ "./src/controller/cap-level-controller.ts");
/* harmony import */ var _controller_fps_controller__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! ./controller/fps-controller */ "./src/controller/fps-controller.ts");
/* harmony import */ var _controller_eme_controller__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(/*! ./controller/eme-controller */ "./src/controller/eme-controller.ts");
/* harmony import */ var _controller_cmcd_controller__WEBPACK_IMPORTED_MODULE_10__ = __webpack_require__(/*! ./controller/cmcd-controller */ "./src/controller/cmcd-controller.ts");
/* harmony import */ var _utils_xhr_loader__WEBPACK_IMPORTED_MODULE_11__ = __webpack_require__(/*! ./utils/xhr-loader */ "./src/utils/xhr-loader.ts");
/* harmony import */ var _utils_fetch_loader__WEBPACK_IMPORTED_MODULE_12__ = __webpack_require__(/*! ./utils/fetch-loader */ "./src/utils/fetch-loader.ts");
/* harmony import */ var _utils_cues__WEBPACK_IMPORTED_MODULE_13__ = __webpack_require__(/*! ./utils/cues */ "./src/utils/cues.ts");
/* harmony import */ var _utils_mediakeys_helper__WEBPACK_IMPORTED_MODULE_14__ = __webpack_require__(/*! ./utils/mediakeys-helper */ "./src/utils/mediakeys-helper.ts");
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_15__ = __webpack_require__(/*! ./utils/logger */ "./src/utils/logger.ts");
function _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }

function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) { symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); } keys.push.apply(keys, symbols); } return keys; }

function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

















// If possible, keep hlsDefaultConfig shallow
// It is cloned whenever a new Hls instance is created, by keeping the config
// shallow the properties are cloned, and we don't end up manipulating the default
var hlsDefaultConfig = _objectSpread(_objectSpread({
  autoStartLoad: true,
  // used by stream-controller
  startPosition: -1,
  // used by stream-controller
  defaultAudioCodec: undefined,
  // used by stream-controller
  debug: false,
  // used by logger
  capLevelOnFPSDrop: false,
  // used by fps-controller
  capLevelToPlayerSize: false,
  // used by cap-level-controller
  initialLiveManifestSize: 1,
  // used by stream-controller
  maxBufferLength: 30,
  // used by stream-controller
  backBufferLength: Infinity,
  // used by buffer-controller
  maxBufferSize: 60 * 1000 * 1000,
  // used by stream-controller
  maxBufferHole: 0.1,
  // used by stream-controller
  highBufferWatchdogPeriod: 2,
  // used by stream-controller
  nudgeOffset: 0.1,
  // used by stream-controller
  nudgeMaxRetry: 3,
  // used by stream-controller
  maxFragLookUpTolerance: 0.25,
  // used by stream-controller
  liveSyncDurationCount: 3,
  // used by latency-controller
  liveMaxLatencyDurationCount: Infinity,
  // used by latency-controller
  liveSyncDuration: undefined,
  // used by latency-controller
  liveMaxLatencyDuration: undefined,
  // used by latency-controller
  maxLiveSyncPlaybackRate: 1,
  // used by latency-controller
  liveDurationInfinity: false,
  // used by buffer-controller
  liveBackBufferLength: null,
  // used by buffer-controller
  maxMaxBufferLength: 600,
  // used by stream-controller
  enableWorker: true,
  // used by demuxer
  enableSoftwareAES: true,
  // used by decrypter
  manifestLoadingTimeOut: 10000,
  // used by playlist-loader
  manifestLoadingMaxRetry: 1,
  // used by playlist-loader
  manifestLoadingRetryDelay: 1000,
  // used by playlist-loader
  manifestLoadingMaxRetryTimeout: 64000,
  // used by playlist-loader
  startLevel: undefined,
  // used by level-controller
  levelLoadingTimeOut: 10000,
  // used by playlist-loader
  levelLoadingMaxRetry: 4,
  // used by playlist-loader
  levelLoadingRetryDelay: 1000,
  // used by playlist-loader
  levelLoadingMaxRetryTimeout: 64000,
  // used by playlist-loader
  fragLoadingTimeOut: 20000,
  // used by fragment-loader
  fragLoadingMaxRetry: 6,
  // used by fragment-loader
  fragLoadingRetryDelay: 1000,
  // used by fragment-loader
  fragLoadingMaxRetryTimeout: 64000,
  // used by fragment-loader
  startFragPrefetch: false,
  // used by stream-controller
  fpsDroppedMonitoringPeriod: 5000,
  // used by fps-controller
  fpsDroppedMonitoringThreshold: 0.2,
  // used by fps-controller
  appendErrorMaxRetry: 3,
  // used by buffer-controller
  loader: _utils_xhr_loader__WEBPACK_IMPORTED_MODULE_11__["default"],
  // loader: FetchLoader,
  fLoader: undefined,
  // used by fragment-loader
  pLoader: undefined,
  // used by playlist-loader
  xhrSetup: undefined,
  // used by xhr-loader
  licenseXhrSetup: undefined,
  // used by eme-controller
  licenseResponseCallback: undefined,
  // used by eme-controller
  abrController: _controller_abr_controller__WEBPACK_IMPORTED_MODULE_0__["default"],
  bufferController: _controller_buffer_controller__WEBPACK_IMPORTED_MODULE_5__["default"],
  capLevelController: _controller_cap_level_controller__WEBPACK_IMPORTED_MODULE_7__["default"],
  fpsController: _controller_fps_controller__WEBPACK_IMPORTED_MODULE_8__["default"],
  stretchShortVideoTrack: false,
  // used by mp4-remuxer
  maxAudioFramesDrift: 1,
  // used by mp4-remuxer
  forceKeyFrameOnDiscontinuity: true,
  // used by ts-demuxer
  abrEwmaFastLive: 3,
  // used by abr-controller
  abrEwmaSlowLive: 9,
  // used by abr-controller
  abrEwmaFastVoD: 3,
  // used by abr-controller
  abrEwmaSlowVoD: 9,
  // used by abr-controller
  abrEwmaDefaultEstimate: 5e5,
  // 500 kbps  // used by abr-controller
  abrBandWidthFactor: 0.95,
  // used by abr-controller
  abrBandWidthUpFactor: 0.7,
  // used by abr-controller
  abrMaxWithRealBitrate: false,
  // used by abr-controller
  maxStarvationDelay: 4,
  // used by abr-controller
  maxLoadingDelay: 4,
  // used by abr-controller
  minAutoBitrate: 0,
  // used by hls
  emeEnabled: false,
  // used by eme-controller
  widevineLicenseUrl: undefined,
  // used by eme-controller
  drmSystemOptions: {},
  // used by eme-controller
  requestMediaKeySystemAccessFunc: _utils_mediakeys_helper__WEBPACK_IMPORTED_MODULE_14__["requestMediaKeySystemAccess"],
  // used by eme-controller
  testBandwidth: true,
  progressive: false,
  lowLatencyMode: true,
  cmcd: undefined
}, timelineConfig()), {}, {
  subtitleStreamController:  true ? _controller_subtitle_stream_controller__WEBPACK_IMPORTED_MODULE_3__["SubtitleStreamController"] : undefined,
  subtitleTrackController:  true ? _controller_subtitle_track_controller__WEBPACK_IMPORTED_MODULE_4__["default"] : undefined,
  timelineController:  true ? _controller_timeline_controller__WEBPACK_IMPORTED_MODULE_6__["TimelineController"] : undefined,
  audioStreamController:  true ? _controller_audio_stream_controller__WEBPACK_IMPORTED_MODULE_1__["default"] : undefined,
  audioTrackController:  true ? _controller_audio_track_controller__WEBPACK_IMPORTED_MODULE_2__["default"] : undefined,
  emeController:  true ? _controller_eme_controller__WEBPACK_IMPORTED_MODULE_9__["default"] : undefined,
  cmcdController:  true ? _controller_cmcd_controller__WEBPACK_IMPORTED_MODULE_10__["default"] : undefined
});

function timelineConfig() {
  return {
    cueHandler: _utils_cues__WEBPACK_IMPORTED_MODULE_13__["default"],
    // used by timeline-controller
    enableCEA708Captions: true,
    // used by timeline-controller
    enableWebVTT: true,
    // used by timeline-controller
    enableIMSC1: true,
    // used by timeline-controller
    captionsTextTrack1Label: 'English',
    // used by timeline-controller
    captionsTextTrack1LanguageCode: 'en',
    // used by timeline-controller
    captionsTextTrack2Label: 'Spanish',
    // used by timeline-controller
    captionsTextTrack2LanguageCode: 'es',
    // used by timeline-controller
    captionsTextTrack3Label: 'Unknown CC',
    // used by timeline-controller
    captionsTextTrack3LanguageCode: '',
    // used by timeline-controller
    captionsTextTrack4Label: 'Unknown CC',
    // used by timeline-controller
    captionsTextTrack4LanguageCode: '',
    // used by timeline-controller
    renderTextTracksNatively: true
  };
}

function mergeConfig(defaultConfig, userConfig) {
  if ((userConfig.liveSyncDurationCount || userConfig.liveMaxLatencyDurationCount) && (userConfig.liveSyncDuration || userConfig.liveMaxLatencyDuration)) {
    throw new Error("Illegal hls.js config: don't mix up liveSyncDurationCount/liveMaxLatencyDurationCount and liveSyncDuration/liveMaxLatencyDuration");
  }

  if (userConfig.liveMaxLatencyDurationCount !== undefined && (userConfig.liveSyncDurationCount === undefined || userConfig.liveMaxLatencyDurationCount <= userConfig.liveSyncDurationCount)) {
    throw new Error('Illegal hls.js config: "liveMaxLatencyDurationCount" must be greater than "liveSyncDurationCount"');
  }

  if (userConfig.liveMaxLatencyDuration !== undefined && (userConfig.liveSyncDuration === undefined || userConfig.liveMaxLatencyDuration <= userConfig.liveSyncDuration)) {
    throw new Error('Illegal hls.js config: "liveMaxLatencyDuration" must be greater than "liveSyncDuration"');
  }

  return _extends({}, defaultConfig, userConfig);
}
function enableStreamingMode(config) {
  var currentLoader = config.loader;

  if (currentLoader !== _utils_fetch_loader__WEBPACK_IMPORTED_MODULE_12__["default"] && currentLoader !== _utils_xhr_loader__WEBPACK_IMPORTED_MODULE_11__["default"]) {
    // If a developer has configured their own loader, respect that choice
    _utils_logger__WEBPACK_IMPORTED_MODULE_15__["logger"].log('[config]: Custom loader detected, cannot enable progressive streaming');
    config.progressive = false;
  } else {
    var canStreamProgressively = Object(_utils_fetch_loader__WEBPACK_IMPORTED_MODULE_12__["fetchSupported"])();

    if (canStreamProgressively) {
      config.loader = _utils_fetch_loader__WEBPACK_IMPORTED_MODULE_12__["default"];
      config.progressive = true;
      config.enableSoftwareAES = true;
      _utils_logger__WEBPACK_IMPORTED_MODULE_15__["logger"].log('[config]: Progressive streaming enabled, using FetchLoader');
    }
  }
}

/***/ }),

/***/ "./src/controller/abr-controller.ts":
/*!******************************************!*\
  !*** ./src/controller/abr-controller.ts ***!
  \******************************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony import */ var _home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./src/polyfills/number */ "./src/polyfills/number.ts");
/* harmony import */ var _utils_ewma_bandwidth_estimator__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../utils/ewma-bandwidth-estimator */ "./src/utils/ewma-bandwidth-estimator.ts");
/* harmony import */ var _events__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../events */ "./src/events.ts");
/* harmony import */ var _utils_buffer_helper__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../utils/buffer-helper */ "./src/utils/buffer-helper.ts");
/* harmony import */ var _errors__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../errors */ "./src/errors.ts");
/* harmony import */ var _types_loader__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ../types/loader */ "./src/types/loader.ts");
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ../utils/logger */ "./src/utils/logger.ts");



function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }








var AbrController = /*#__PURE__*/function () {
  function AbrController(hls) {
    this.hls = void 0;
    this.lastLoadedFragLevel = 0;
    this._nextAutoLevel = -1;
    this.timer = void 0;
    this.onCheck = this._abandonRulesCheck.bind(this);
    this.fragCurrent = null;
    this.partCurrent = null;
    this.bitrateTestDelay = 0;
    this.bwEstimator = void 0;
    this.hls = hls;
    var config = hls.config;
    this.bwEstimator = new _utils_ewma_bandwidth_estimator__WEBPACK_IMPORTED_MODULE_1__["default"](config.abrEwmaSlowVoD, config.abrEwmaFastVoD, config.abrEwmaDefaultEstimate);
    this.registerListeners();
  }

  var _proto = AbrController.prototype;

  _proto.registerListeners = function registerListeners() {
    var hls = this.hls;
    hls.on(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].FRAG_LOADING, this.onFragLoading, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].FRAG_LOADED, this.onFragLoaded, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].FRAG_BUFFERED, this.onFragBuffered, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].LEVEL_LOADED, this.onLevelLoaded, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].ERROR, this.onError, this);
  };

  _proto.unregisterListeners = function unregisterListeners() {
    var hls = this.hls;
    hls.off(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].FRAG_LOADING, this.onFragLoading, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].FRAG_LOADED, this.onFragLoaded, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].FRAG_BUFFERED, this.onFragBuffered, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].LEVEL_LOADED, this.onLevelLoaded, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].ERROR, this.onError, this);
  };

  _proto.destroy = function destroy() {
    this.unregisterListeners();
    this.clearTimer(); // @ts-ignore

    this.hls = this.onCheck = null;
    this.fragCurrent = this.partCurrent = null;
  };

  _proto.onFragLoading = function onFragLoading(event, data) {
    var frag = data.frag;

    if (frag.type === _types_loader__WEBPACK_IMPORTED_MODULE_5__["PlaylistLevelType"].MAIN) {
      if (!this.timer) {
        var _data$part;

        this.fragCurrent = frag;
        this.partCurrent = (_data$part = data.part) != null ? _data$part : null;
        this.timer = self.setInterval(this.onCheck, 100);
      }
    }
  };

  _proto.onLevelLoaded = function onLevelLoaded(event, data) {
    var config = this.hls.config;

    if (data.details.live) {
      this.bwEstimator.update(config.abrEwmaSlowLive, config.abrEwmaFastLive);
    } else {
      this.bwEstimator.update(config.abrEwmaSlowVoD, config.abrEwmaFastVoD);
    }
  }
  /*
      This method monitors the download rate of the current fragment, and will downswitch if that fragment will not load
      quickly enough to prevent underbuffering
    */
  ;

  _proto._abandonRulesCheck = function _abandonRulesCheck() {
    var frag = this.fragCurrent,
        part = this.partCurrent,
        hls = this.hls;
    var autoLevelEnabled = hls.autoLevelEnabled,
        config = hls.config,
        media = hls.media;

    if (!frag || !media) {
      return;
    }

    var stats = part ? part.stats : frag.stats;
    var duration = part ? part.duration : frag.duration; // If loading has been aborted and not in lowLatencyMode, stop timer and return

    if (stats.aborted) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_6__["logger"].warn('frag loader destroy or aborted, disarm abandonRules');
      this.clearTimer(); // reset forced auto level value so that next level will be selected

      this._nextAutoLevel = -1;
      return;
    } // This check only runs if we're in ABR mode and actually playing


    if (!autoLevelEnabled || media.paused || !media.playbackRate || !media.readyState) {
      return;
    }

    var requestDelay = performance.now() - stats.loading.start;
    var playbackRate = Math.abs(media.playbackRate); // In order to work with a stable bandwidth, only begin monitoring bandwidth after half of the fragment has been loaded

    if (requestDelay <= 500 * duration / playbackRate) {
      return;
    }

    var levels = hls.levels,
        minAutoLevel = hls.minAutoLevel;
    var level = levels[frag.level];
    var expectedLen = stats.total || Math.max(stats.loaded, Math.round(duration * level.maxBitrate / 8));
    var loadRate = Math.max(1, stats.bwEstimate ? stats.bwEstimate / 8 : stats.loaded * 1000 / requestDelay); // fragLoadDelay is an estimate of the time (in seconds) it will take to buffer the entire fragment

    var fragLoadedDelay = (expectedLen - stats.loaded) / loadRate;
    var pos = media.currentTime; // bufferStarvationDelay is an estimate of the amount time (in seconds) it will take to exhaust the buffer

    var bufferStarvationDelay = (_utils_buffer_helper__WEBPACK_IMPORTED_MODULE_3__["BufferHelper"].bufferInfo(media, pos, config.maxBufferHole).end - pos) / playbackRate; // Attempt an emergency downswitch only if less than 2 fragment lengths are buffered, and the time to finish loading
    // the current fragment is greater than the amount of buffer we have left

    if (bufferStarvationDelay >= 2 * duration / playbackRate || fragLoadedDelay <= bufferStarvationDelay) {
      return;
    }

    var fragLevelNextLoadedDelay = Number.POSITIVE_INFINITY;
    var nextLoadLevel; // Iterate through lower level and try to find the largest one that avoids rebuffering

    for (nextLoadLevel = frag.level - 1; nextLoadLevel > minAutoLevel; nextLoadLevel--) {
      // compute time to load next fragment at lower level
      // 0.8 : consider only 80% of current bw to be conservative
      // 8 = bits per byte (bps/Bps)
      var levelNextBitrate = levels[nextLoadLevel].maxBitrate;
      fragLevelNextLoadedDelay = duration * levelNextBitrate / (8 * 0.8 * loadRate);

      if (fragLevelNextLoadedDelay < bufferStarvationDelay) {
        break;
      }
    } // Only emergency switch down if it takes less time to load a new fragment at lowest level instead of continuing
    // to load the current one


    if (fragLevelNextLoadedDelay >= fragLoadedDelay) {
      return;
    }

    var bwEstimate = this.bwEstimator.getEstimate();
    _utils_logger__WEBPACK_IMPORTED_MODULE_6__["logger"].warn("Fragment " + frag.sn + (part ? ' part ' + part.index : '') + " of level " + frag.level + " is loading too slowly and will cause an underbuffer; aborting and switching to level " + nextLoadLevel + "\n      Current BW estimate: " + (Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(bwEstimate) ? (bwEstimate / 1024).toFixed(3) : 'Unknown') + " Kb/s\n      Estimated load time for current fragment: " + fragLoadedDelay.toFixed(3) + " s\n      Estimated load time for the next fragment: " + fragLevelNextLoadedDelay.toFixed(3) + " s\n      Time to underbuffer: " + bufferStarvationDelay.toFixed(3) + " s");
    hls.nextLoadLevel = nextLoadLevel;
    this.bwEstimator.sample(requestDelay, stats.loaded);
    this.clearTimer();

    if (frag.loader) {
      this.fragCurrent = this.partCurrent = null;
      frag.loader.abort();
    }

    hls.trigger(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].FRAG_LOAD_EMERGENCY_ABORTED, {
      frag: frag,
      part: part,
      stats: stats
    });
  };

  _proto.onFragLoaded = function onFragLoaded(event, _ref) {
    var frag = _ref.frag,
        part = _ref.part;

    if (frag.type === _types_loader__WEBPACK_IMPORTED_MODULE_5__["PlaylistLevelType"].MAIN && Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(frag.sn)) {
      var stats = part ? part.stats : frag.stats;
      var duration = part ? part.duration : frag.duration; // stop monitoring bw once frag loaded

      this.clearTimer(); // store level id after successful fragment load

      this.lastLoadedFragLevel = frag.level; // reset forced auto level value so that next level will be selected

      this._nextAutoLevel = -1; // compute level average bitrate

      if (this.hls.config.abrMaxWithRealBitrate) {
        var level = this.hls.levels[frag.level];
        var loadedBytes = (level.loaded ? level.loaded.bytes : 0) + stats.loaded;
        var loadedDuration = (level.loaded ? level.loaded.duration : 0) + duration;
        level.loaded = {
          bytes: loadedBytes,
          duration: loadedDuration
        };
        level.realBitrate = Math.round(8 * loadedBytes / loadedDuration);
      }

      if (frag.bitrateTest) {
        var fragBufferedData = {
          stats: stats,
          frag: frag,
          part: part,
          id: frag.type
        };
        this.onFragBuffered(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].FRAG_BUFFERED, fragBufferedData);
        frag.bitrateTest = false;
      }
    }
  };

  _proto.onFragBuffered = function onFragBuffered(event, data) {
    var frag = data.frag,
        part = data.part;
    var stats = part ? part.stats : frag.stats;

    if (stats.aborted) {
      return;
    } // Only count non-alt-audio frags which were actually buffered in our BW calculations


    if (frag.type !== _types_loader__WEBPACK_IMPORTED_MODULE_5__["PlaylistLevelType"].MAIN || frag.sn === 'initSegment') {
      return;
    } // Use the difference between parsing and request instead of buffering and request to compute fragLoadingProcessing;
    // rationale is that buffer appending only happens once media is attached. This can happen when config.startFragPrefetch
    // is used. If we used buffering in that case, our BW estimate sample will be very large.


    var processingMs = stats.parsing.end - stats.loading.start;
    this.bwEstimator.sample(processingMs, stats.loaded);
    stats.bwEstimate = this.bwEstimator.getEstimate();

    if (frag.bitrateTest) {
      this.bitrateTestDelay = processingMs / 1000;
    } else {
      this.bitrateTestDelay = 0;
    }
  };

  _proto.onError = function onError(event, data) {
    // stop timer in case of frag loading error
    switch (data.details) {
      case _errors__WEBPACK_IMPORTED_MODULE_4__["ErrorDetails"].FRAG_LOAD_ERROR:
      case _errors__WEBPACK_IMPORTED_MODULE_4__["ErrorDetails"].FRAG_LOAD_TIMEOUT:
        this.clearTimer();
        break;

      default:
        break;
    }
  };

  _proto.clearTimer = function clearTimer() {
    self.clearInterval(this.timer);
    this.timer = undefined;
  } // return next auto level
  ;

  _proto.getNextABRAutoLevel = function getNextABRAutoLevel() {
    var fragCurrent = this.fragCurrent,
        partCurrent = this.partCurrent,
        hls = this.hls;
    var maxAutoLevel = hls.maxAutoLevel,
        config = hls.config,
        minAutoLevel = hls.minAutoLevel,
        media = hls.media;
    var currentFragDuration = partCurrent ? partCurrent.duration : fragCurrent ? fragCurrent.duration : 0;
    var pos = media ? media.currentTime : 0; // playbackRate is the absolute value of the playback rate; if media.playbackRate is 0, we use 1 to load as
    // if we're playing back at the normal rate.

    var playbackRate = media && media.playbackRate !== 0 ? Math.abs(media.playbackRate) : 1.0;
    var avgbw = this.bwEstimator ? this.bwEstimator.getEstimate() : config.abrEwmaDefaultEstimate; // bufferStarvationDelay is the wall-clock time left until the playback buffer is exhausted.

    var bufferStarvationDelay = (_utils_buffer_helper__WEBPACK_IMPORTED_MODULE_3__["BufferHelper"].bufferInfo(media, pos, config.maxBufferHole).end - pos) / playbackRate; // First, look to see if we can find a level matching with our avg bandwidth AND that could also guarantee no rebuffering at all

    var bestLevel = this.findBestLevel(avgbw, minAutoLevel, maxAutoLevel, bufferStarvationDelay, config.abrBandWidthFactor, config.abrBandWidthUpFactor);

    if (bestLevel >= 0) {
      return bestLevel;
    }

    _utils_logger__WEBPACK_IMPORTED_MODULE_6__["logger"].trace((bufferStarvationDelay ? 'rebuffering expected' : 'buffer is empty') + ", finding optimal quality level"); // not possible to get rid of rebuffering ... let's try to find level that will guarantee less than maxStarvationDelay of rebuffering
    // if no matching level found, logic will return 0

    var maxStarvationDelay = currentFragDuration ? Math.min(currentFragDuration, config.maxStarvationDelay) : config.maxStarvationDelay;
    var bwFactor = config.abrBandWidthFactor;
    var bwUpFactor = config.abrBandWidthUpFactor;

    if (!bufferStarvationDelay) {
      // in case buffer is empty, let's check if previous fragment was loaded to perform a bitrate test
      var bitrateTestDelay = this.bitrateTestDelay;

      if (bitrateTestDelay) {
        // if it is the case, then we need to adjust our max starvation delay using maxLoadingDelay config value
        // max video loading delay used in  automatic start level selection :
        // in that mode ABR controller will ensure that video loading time (ie the time to fetch the first fragment at lowest quality level +
        // the time to fetch the fragment at the appropriate quality level is less than ```maxLoadingDelay``` )
        // cap maxLoadingDelay and ensure it is not bigger 'than bitrate test' frag duration
        var maxLoadingDelay = currentFragDuration ? Math.min(currentFragDuration, config.maxLoadingDelay) : config.maxLoadingDelay;
        maxStarvationDelay = maxLoadingDelay - bitrateTestDelay;
        _utils_logger__WEBPACK_IMPORTED_MODULE_6__["logger"].trace("bitrate test took " + Math.round(1000 * bitrateTestDelay) + "ms, set first fragment max fetchDuration to " + Math.round(1000 * maxStarvationDelay) + " ms"); // don't use conservative factor on bitrate test

        bwFactor = bwUpFactor = 1;
      }
    }

    bestLevel = this.findBestLevel(avgbw, minAutoLevel, maxAutoLevel, bufferStarvationDelay + maxStarvationDelay, bwFactor, bwUpFactor);
    return Math.max(bestLevel, 0);
  };

  _proto.findBestLevel = function findBestLevel(currentBw, minAutoLevel, maxAutoLevel, maxFetchDuration, bwFactor, bwUpFactor) {
    var _level$details;

    var fragCurrent = this.fragCurrent,
        partCurrent = this.partCurrent,
        currentLevel = this.lastLoadedFragLevel;
    var levels = this.hls.levels;
    var level = levels[currentLevel];
    var live = !!(level !== null && level !== void 0 && (_level$details = level.details) !== null && _level$details !== void 0 && _level$details.live);
    var currentCodecSet = level === null || level === void 0 ? void 0 : level.codecSet;
    var currentFragDuration = partCurrent ? partCurrent.duration : fragCurrent ? fragCurrent.duration : 0;

    for (var i = maxAutoLevel; i >= minAutoLevel; i--) {
      var levelInfo = levels[i];

      if (!levelInfo || currentCodecSet && levelInfo.codecSet !== currentCodecSet) {
        continue;
      }

      var levelDetails = levelInfo.details;
      var avgDuration = (partCurrent ? levelDetails === null || levelDetails === void 0 ? void 0 : levelDetails.partTarget : levelDetails === null || levelDetails === void 0 ? void 0 : levelDetails.averagetargetduration) || currentFragDuration;
      var adjustedbw = void 0; // follow algorithm captured from stagefright :
      // https://android.googlesource.com/platform/frameworks/av/+/master/media/libstagefright/httplive/LiveSession.cpp
      // Pick the highest bandwidth stream below or equal to estimated bandwidth.
      // consider only 80% of the available bandwidth, but if we are switching up,
      // be even more conservative (70%) to avoid overestimating and immediately
      // switching back.

      if (i <= currentLevel) {
        adjustedbw = bwFactor * currentBw;
      } else {
        adjustedbw = bwUpFactor * currentBw;
      }

      var bitrate = levels[i].maxBitrate;
      var fetchDuration = bitrate * avgDuration / adjustedbw;
      _utils_logger__WEBPACK_IMPORTED_MODULE_6__["logger"].trace("level/adjustedbw/bitrate/avgDuration/maxFetchDuration/fetchDuration: " + i + "/" + Math.round(adjustedbw) + "/" + bitrate + "/" + avgDuration + "/" + maxFetchDuration + "/" + fetchDuration); // if adjusted bw is greater than level bitrate AND

      if (adjustedbw > bitrate && ( // fragment fetchDuration unknown OR live stream OR fragment fetchDuration less than max allowed fetch duration, then this level matches
      // we don't account for max Fetch Duration for live streams, this is to avoid switching down when near the edge of live sliding window ...
      // special case to support startLevel = -1 (bitrateTest) on live streams : in that case we should not exit loop so that findBestLevel will return -1
      !fetchDuration || live && !this.bitrateTestDelay || fetchDuration < maxFetchDuration)) {
        // as we are looping from highest to lowest, this will return the best achievable quality level
        return i;
      }
    } // not enough time budget even with quality level 0 ... rebuffering might happen


    return -1;
  };

  _createClass(AbrController, [{
    key: "nextAutoLevel",
    get: function get() {
      var forcedAutoLevel = this._nextAutoLevel;
      var bwEstimator = this.bwEstimator; // in case next auto level has been forced, and bw not available or not reliable, return forced value

      if (forcedAutoLevel !== -1 && (!bwEstimator || !bwEstimator.canEstimate())) {
        return forcedAutoLevel;
      } // compute next level using ABR logic


      var nextABRAutoLevel = this.getNextABRAutoLevel(); // if forced auto level has been defined, use it to cap ABR computed quality level

      if (forcedAutoLevel !== -1) {
        nextABRAutoLevel = Math.min(forcedAutoLevel, nextABRAutoLevel);
      }

      return nextABRAutoLevel;
    },
    set: function set(nextLevel) {
      this._nextAutoLevel = nextLevel;
    }
  }]);

  return AbrController;
}();

/* harmony default export */ __webpack_exports__["default"] = (AbrController);

/***/ }),

/***/ "./src/controller/audio-stream-controller.ts":
/*!***************************************************!*\
  !*** ./src/controller/audio-stream-controller.ts ***!
  \***************************************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony import */ var _home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./src/polyfills/number */ "./src/polyfills/number.ts");
/* harmony import */ var _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./base-stream-controller */ "./src/controller/base-stream-controller.ts");
/* harmony import */ var _events__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../events */ "./src/events.ts");
/* harmony import */ var _utils_buffer_helper__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../utils/buffer-helper */ "./src/utils/buffer-helper.ts");
/* harmony import */ var _fragment_tracker__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ./fragment-tracker */ "./src/controller/fragment-tracker.ts");
/* harmony import */ var _types_level__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ../types/level */ "./src/types/level.ts");
/* harmony import */ var _types_loader__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ../types/loader */ "./src/types/loader.ts");
/* harmony import */ var _loader_fragment__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ../loader/fragment */ "./src/loader/fragment.ts");
/* harmony import */ var _demux_chunk_cache__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! ../demux/chunk-cache */ "./src/demux/chunk-cache.ts");
/* harmony import */ var _demux_transmuxer_interface__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(/*! ../demux/transmuxer-interface */ "./src/demux/transmuxer-interface.ts");
/* harmony import */ var _types_transmuxer__WEBPACK_IMPORTED_MODULE_10__ = __webpack_require__(/*! ../types/transmuxer */ "./src/types/transmuxer.ts");
/* harmony import */ var _fragment_finders__WEBPACK_IMPORTED_MODULE_11__ = __webpack_require__(/*! ./fragment-finders */ "./src/controller/fragment-finders.ts");
/* harmony import */ var _utils_discontinuities__WEBPACK_IMPORTED_MODULE_12__ = __webpack_require__(/*! ../utils/discontinuities */ "./src/utils/discontinuities.ts");
/* harmony import */ var _errors__WEBPACK_IMPORTED_MODULE_13__ = __webpack_require__(/*! ../errors */ "./src/errors.ts");
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_14__ = __webpack_require__(/*! ../utils/logger */ "./src/utils/logger.ts");


function _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }

function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }















var TICK_INTERVAL = 100; // how often to tick in ms

var AudioStreamController = /*#__PURE__*/function (_BaseStreamController) {
  _inheritsLoose(AudioStreamController, _BaseStreamController);

  function AudioStreamController(hls, fragmentTracker) {
    var _this;

    _this = _BaseStreamController.call(this, hls, fragmentTracker, '[audio-stream-controller]') || this;
    _this.videoBuffer = null;
    _this.videoTrackCC = -1;
    _this.waitingVideoCC = -1;
    _this.audioSwitch = false;
    _this.trackId = -1;
    _this.waitingData = null;
    _this.mainDetails = null;
    _this.bufferFlushed = false;

    _this._registerListeners();

    return _this;
  }

  var _proto = AudioStreamController.prototype;

  _proto.onHandlerDestroying = function onHandlerDestroying() {
    this._unregisterListeners();

    this.mainDetails = null;
  };

  _proto._registerListeners = function _registerListeners() {
    var hls = this.hls;
    hls.on(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].MEDIA_ATTACHED, this.onMediaAttached, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].MEDIA_DETACHING, this.onMediaDetaching, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].MANIFEST_LOADING, this.onManifestLoading, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].LEVEL_LOADED, this.onLevelLoaded, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].AUDIO_TRACKS_UPDATED, this.onAudioTracksUpdated, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].AUDIO_TRACK_SWITCHING, this.onAudioTrackSwitching, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].AUDIO_TRACK_LOADED, this.onAudioTrackLoaded, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].ERROR, this.onError, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].BUFFER_RESET, this.onBufferReset, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].BUFFER_CREATED, this.onBufferCreated, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].BUFFER_FLUSHED, this.onBufferFlushed, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].INIT_PTS_FOUND, this.onInitPtsFound, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].FRAG_BUFFERED, this.onFragBuffered, this);
  };

  _proto._unregisterListeners = function _unregisterListeners() {
    var hls = this.hls;
    hls.off(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].MEDIA_ATTACHED, this.onMediaAttached, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].MEDIA_DETACHING, this.onMediaDetaching, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].MANIFEST_LOADING, this.onManifestLoading, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].LEVEL_LOADED, this.onLevelLoaded, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].AUDIO_TRACKS_UPDATED, this.onAudioTracksUpdated, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].AUDIO_TRACK_SWITCHING, this.onAudioTrackSwitching, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].AUDIO_TRACK_LOADED, this.onAudioTrackLoaded, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].ERROR, this.onError, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].BUFFER_RESET, this.onBufferReset, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].BUFFER_CREATED, this.onBufferCreated, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].BUFFER_FLUSHED, this.onBufferFlushed, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].INIT_PTS_FOUND, this.onInitPtsFound, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].FRAG_BUFFERED, this.onFragBuffered, this);
  } // INIT_PTS_FOUND is triggered when the video track parsed in the stream-controller has a new PTS value
  ;

  _proto.onInitPtsFound = function onInitPtsFound(event, _ref) {
    var frag = _ref.frag,
        id = _ref.id,
        initPTS = _ref.initPTS;

    // Always update the new INIT PTS
    // Can change due level switch
    if (id === 'main') {
      var cc = frag.cc;
      this.initPTS[frag.cc] = initPTS;
      this.log("InitPTS for cc: " + cc + " found from main: " + initPTS);
      this.videoTrackCC = cc; // If we are waiting, tick immediately to unblock audio fragment transmuxing

      if (this.state === _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].WAITING_INIT_PTS) {
        this.tick();
      }
    }
  };

  _proto.startLoad = function startLoad(startPosition) {
    if (!this.levels) {
      this.startPosition = startPosition;
      this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].STOPPED;
      return;
    }

    var lastCurrentTime = this.lastCurrentTime;
    this.stopLoad();
    this.setInterval(TICK_INTERVAL);
    this.fragLoadError = 0;

    if (lastCurrentTime > 0 && startPosition === -1) {
      this.log("Override startPosition with lastCurrentTime @" + lastCurrentTime.toFixed(3));
      this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].IDLE;
    } else {
      this.loadedmetadata = false;
      this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].WAITING_TRACK;
    }

    this.nextLoadPosition = this.startPosition = this.lastCurrentTime = startPosition;
    this.tick();
  };

  _proto.doTick = function doTick() {
    switch (this.state) {
      case _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].IDLE:
        this.doTickIdle();
        break;

      case _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].WAITING_TRACK:
        {
          var _levels$trackId;

          var levels = this.levels,
              trackId = this.trackId;
          var details = levels === null || levels === void 0 ? void 0 : (_levels$trackId = levels[trackId]) === null || _levels$trackId === void 0 ? void 0 : _levels$trackId.details;

          if (details) {
            if (this.waitForCdnTuneIn(details)) {
              break;
            }

            this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].WAITING_INIT_PTS;
          }

          break;
        }

      case _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].FRAG_LOADING_WAITING_RETRY:
        {
          var _this$media;

          var now = performance.now();
          var retryDate = this.retryDate; // if current time is gt than retryDate, or if media seeking let's switch to IDLE state to retry loading

          if (!retryDate || now >= retryDate || (_this$media = this.media) !== null && _this$media !== void 0 && _this$media.seeking) {
            this.log('RetryDate reached, switch back to IDLE state');
            this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].IDLE;
          }

          break;
        }

      case _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].WAITING_INIT_PTS:
        {
          // Ensure we don't get stuck in the WAITING_INIT_PTS state if the waiting frag CC doesn't match any initPTS
          var waitingData = this.waitingData;

          if (waitingData) {
            var frag = waitingData.frag,
                part = waitingData.part,
                cache = waitingData.cache,
                complete = waitingData.complete;

            if (this.initPTS[frag.cc] !== undefined) {
              this.waitingData = null;
              this.waitingVideoCC = -1;
              this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].FRAG_LOADING;
              var payload = cache.flush();
              var data = {
                frag: frag,
                part: part,
                payload: payload,
                networkDetails: null
              };

              this._handleFragmentLoadProgress(data);

              if (complete) {
                _BaseStreamController.prototype._handleFragmentLoadComplete.call(this, data);
              }
            } else if (this.videoTrackCC !== this.waitingVideoCC) {
              // Drop waiting fragment if videoTrackCC has changed since waitingFragment was set and initPTS was not found
              _utils_logger__WEBPACK_IMPORTED_MODULE_14__["logger"].log("Waiting fragment cc (" + frag.cc + ") cancelled because video is at cc " + this.videoTrackCC);
              this.clearWaitingFragment();
            } else {
              // Drop waiting fragment if an earlier fragment is needed
              var pos = this.getLoadPosition();
              var bufferInfo = _utils_buffer_helper__WEBPACK_IMPORTED_MODULE_3__["BufferHelper"].bufferInfo(this.mediaBuffer, pos, this.config.maxBufferHole);
              var waitingFragmentAtPosition = Object(_fragment_finders__WEBPACK_IMPORTED_MODULE_11__["fragmentWithinToleranceTest"])(bufferInfo.end, this.config.maxFragLookUpTolerance, frag);

              if (waitingFragmentAtPosition < 0) {
                _utils_logger__WEBPACK_IMPORTED_MODULE_14__["logger"].log("Waiting fragment cc (" + frag.cc + ") @ " + frag.start + " cancelled because another fragment at " + bufferInfo.end + " is needed");
                this.clearWaitingFragment();
              }
            }
          } else {
            this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].IDLE;
          }
        }
    }

    this.onTickEnd();
  };

  _proto.clearWaitingFragment = function clearWaitingFragment() {
    var waitingData = this.waitingData;

    if (waitingData) {
      this.fragmentTracker.removeFragment(waitingData.frag);
      this.waitingData = null;
      this.waitingVideoCC = -1;
      this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].IDLE;
    }
  };

  _proto.onTickEnd = function onTickEnd() {
    var media = this.media;

    if (!media || !media.readyState) {
      // Exit early if we don't have media or if the media hasn't buffered anything yet (readyState 0)
      return;
    }

    var mediaBuffer = this.mediaBuffer ? this.mediaBuffer : media;
    var buffered = mediaBuffer.buffered;

    if (!this.loadedmetadata && buffered.length) {
      this.loadedmetadata = true;
    }

    this.lastCurrentTime = media.currentTime;
  };

  _proto.doTickIdle = function doTickIdle() {
    var _frag$decryptdata, _frag$decryptdata2;

    var hls = this.hls,
        levels = this.levels,
        media = this.media,
        trackId = this.trackId;
    var config = hls.config;

    if (!levels || !levels[trackId]) {
      return;
    } // if video not attached AND
    // start fragment already requested OR start frag prefetch not enabled
    // exit loop
    // => if media not attached but start frag prefetch is enabled and start frag not requested yet, we will not exit loop


    if (!media && (this.startFragRequested || !config.startFragPrefetch)) {
      return;
    }

    var levelInfo = levels[trackId];
    var trackDetails = levelInfo.details;

    if (!trackDetails || trackDetails.live && this.levelLastLoaded !== trackId || this.waitForCdnTuneIn(trackDetails)) {
      this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].WAITING_TRACK;
      return;
    }

    if (this.bufferFlushed) {
      this.bufferFlushed = false;
      this.afterBufferFlushed(this.mediaBuffer ? this.mediaBuffer : this.media, _loader_fragment__WEBPACK_IMPORTED_MODULE_7__["ElementaryStreamTypes"].AUDIO, _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistLevelType"].AUDIO);
    }

    var bufferInfo = this.getFwdBufferInfo(this.mediaBuffer ? this.mediaBuffer : this.media, _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistLevelType"].AUDIO);

    if (bufferInfo === null) {
      return;
    }

    var bufferLen = bufferInfo.len;
    var maxBufLen = this.getMaxBufferLength();
    var audioSwitch = this.audioSwitch; // if buffer length is less than maxBufLen try to load a new fragment

    if (bufferLen >= maxBufLen && !audioSwitch) {
      return;
    }

    if (!audioSwitch && this._streamEnded(bufferInfo, trackDetails)) {
      hls.trigger(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].BUFFER_EOS, {
        type: 'audio'
      });
      this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].ENDED;
      return;
    }

    var fragments = trackDetails.fragments;
    var start = fragments[0].start;
    var targetBufferTime = bufferInfo.end;

    if (audioSwitch) {
      var pos = this.getLoadPosition();
      targetBufferTime = pos; // if currentTime (pos) is less than alt audio playlist start time, it means that alt audio is ahead of currentTime

      if (trackDetails.PTSKnown && pos < start) {
        // if everything is buffered from pos to start or if audio buffer upfront, let's seek to start
        if (bufferInfo.end > start || bufferInfo.nextStart) {
          this.log('Alt audio track ahead of main track, seek to start of alt audio track');
          media.currentTime = start + 0.05;
        }
      }
    }

    var frag = this.getNextFragment(targetBufferTime, trackDetails);

    if (!frag) {
      this.bufferFlushed = true;
      return;
    }

    if (((_frag$decryptdata = frag.decryptdata) === null || _frag$decryptdata === void 0 ? void 0 : _frag$decryptdata.keyFormat) === 'identity' && !((_frag$decryptdata2 = frag.decryptdata) !== null && _frag$decryptdata2 !== void 0 && _frag$decryptdata2.key)) {
      this.loadKey(frag, trackDetails);
    } else {
      this.loadFragment(frag, trackDetails, targetBufferTime);
    }
  };

  _proto.getMaxBufferLength = function getMaxBufferLength() {
    var maxConfigBuffer = _BaseStreamController.prototype.getMaxBufferLength.call(this);

    var mainBufferInfo = this.getFwdBufferInfo(this.videoBuffer ? this.videoBuffer : this.media, _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistLevelType"].MAIN);

    if (mainBufferInfo === null) {
      return maxConfigBuffer;
    }

    return Math.max(maxConfigBuffer, mainBufferInfo.len);
  };

  _proto.onMediaDetaching = function onMediaDetaching() {
    this.videoBuffer = null;

    _BaseStreamController.prototype.onMediaDetaching.call(this);
  };

  _proto.onAudioTracksUpdated = function onAudioTracksUpdated(event, _ref2) {
    var audioTracks = _ref2.audioTracks;
    this.resetTransmuxer();
    this.levels = audioTracks.map(function (mediaPlaylist) {
      return new _types_level__WEBPACK_IMPORTED_MODULE_5__["Level"](mediaPlaylist);
    });
  };

  _proto.onAudioTrackSwitching = function onAudioTrackSwitching(event, data) {
    // if any URL found on new audio track, it is an alternate audio track
    var altAudio = !!data.url;
    this.trackId = data.id;
    var fragCurrent = this.fragCurrent;

    if (fragCurrent !== null && fragCurrent !== void 0 && fragCurrent.loader) {
      fragCurrent.loader.abort();
    }

    this.fragCurrent = null;
    this.clearWaitingFragment(); // destroy useless transmuxer when switching audio to main

    if (!altAudio) {
      this.resetTransmuxer();
    } else {
      // switching to audio track, start timer if not already started
      this.setInterval(TICK_INTERVAL);
    } // should we switch tracks ?


    if (altAudio) {
      this.audioSwitch = true; // main audio track are handled by stream-controller, just do something if switching to alt audio track

      this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].IDLE;
    } else {
      this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].STOPPED;
    }

    this.tick();
  };

  _proto.onManifestLoading = function onManifestLoading() {
    this.mainDetails = null;
    this.fragmentTracker.removeAllFragments();
    this.startPosition = this.lastCurrentTime = 0;
    this.bufferFlushed = false;
  };

  _proto.onLevelLoaded = function onLevelLoaded(event, data) {
    this.mainDetails = data.details;
  };

  _proto.onAudioTrackLoaded = function onAudioTrackLoaded(event, data) {
    var _track$details;

    var levels = this.levels;
    var newDetails = data.details,
        trackId = data.id;

    if (!levels) {
      this.warn("Audio tracks were reset while loading level " + trackId);
      return;
    }

    this.log("Track " + trackId + " loaded [" + newDetails.startSN + "," + newDetails.endSN + "],duration:" + newDetails.totalduration);
    var track = levels[trackId];
    var sliding = 0;

    if (newDetails.live || (_track$details = track.details) !== null && _track$details !== void 0 && _track$details.live) {
      var mainDetails = this.mainDetails;

      if (!newDetails.fragments[0]) {
        newDetails.deltaUpdateFailed = true;
      }

      if (newDetails.deltaUpdateFailed || !mainDetails) {
        return;
      }

      if (!track.details && newDetails.hasProgramDateTime && mainDetails.hasProgramDateTime) {
        // Make sure our audio rendition is aligned with the "main" rendition, using
        // pdt as our reference times.
        Object(_utils_discontinuities__WEBPACK_IMPORTED_MODULE_12__["alignMediaPlaylistByPDT"])(newDetails, mainDetails);
        sliding = newDetails.fragments[0].start;
      } else {
        sliding = this.alignPlaylists(newDetails, track.details);
      }
    }

    track.details = newDetails;
    this.levelLastLoaded = trackId; // compute start position if we are aligned with the main playlist

    if (!this.startFragRequested && (this.mainDetails || !newDetails.live)) {
      this.setStartPosition(track.details, sliding);
    } // only switch back to IDLE state if we were waiting for track to start downloading a new fragment


    if (this.state === _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].WAITING_TRACK && !this.waitForCdnTuneIn(newDetails)) {
      this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].IDLE;
    } // trigger handler right now


    this.tick();
  };

  _proto._handleFragmentLoadProgress = function _handleFragmentLoadProgress(data) {
    var _frag$initSegment;

    var frag = data.frag,
        part = data.part,
        payload = data.payload;
    var config = this.config,
        trackId = this.trackId,
        levels = this.levels;

    if (!levels) {
      this.warn("Audio tracks were reset while fragment load was in progress. Fragment " + frag.sn + " of level " + frag.level + " will not be buffered");
      return;
    }

    var track = levels[trackId];
    console.assert(track, 'Audio track is defined on fragment load progress');
    var details = track.details;
    console.assert(details, 'Audio track details are defined on fragment load progress');
    var audioCodec = config.defaultAudioCodec || track.audioCodec || 'mp4a.40.2';
    var transmuxer = this.transmuxer;

    if (!transmuxer) {
      transmuxer = this.transmuxer = new _demux_transmuxer_interface__WEBPACK_IMPORTED_MODULE_9__["default"](this.hls, _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistLevelType"].AUDIO, this._handleTransmuxComplete.bind(this), this._handleTransmuxerFlush.bind(this));
    } // Check if we have video initPTS
    // If not we need to wait for it


    var initPTS = this.initPTS[frag.cc];
    var initSegmentData = (_frag$initSegment = frag.initSegment) === null || _frag$initSegment === void 0 ? void 0 : _frag$initSegment.data;

    if (initPTS !== undefined) {
      // this.log(`Transmuxing ${sn} of [${details.startSN} ,${details.endSN}],track ${trackId}`);
      // time Offset is accurate if level PTS is known, or if playlist is not sliding (not live)
      var accurateTimeOffset = false; // details.PTSKnown || !details.live;

      var partIndex = part ? part.index : -1;
      var partial = partIndex !== -1;
      var chunkMeta = new _types_transmuxer__WEBPACK_IMPORTED_MODULE_10__["ChunkMetadata"](frag.level, frag.sn, frag.stats.chunkCount, payload.byteLength, partIndex, partial);
      transmuxer.push(payload, initSegmentData, audioCodec, '', frag, part, details.totalduration, accurateTimeOffset, chunkMeta, initPTS);
    } else {
      _utils_logger__WEBPACK_IMPORTED_MODULE_14__["logger"].log("Unknown video PTS for cc " + frag.cc + ", waiting for video PTS before demuxing audio frag " + frag.sn + " of [" + details.startSN + " ," + details.endSN + "],track " + trackId);

      var _this$waitingData = this.waitingData = this.waitingData || {
        frag: frag,
        part: part,
        cache: new _demux_chunk_cache__WEBPACK_IMPORTED_MODULE_8__["default"](),
        complete: false
      },
          cache = _this$waitingData.cache;

      cache.push(new Uint8Array(payload));
      this.waitingVideoCC = this.videoTrackCC;
      this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].WAITING_INIT_PTS;
    }
  };

  _proto._handleFragmentLoadComplete = function _handleFragmentLoadComplete(fragLoadedData) {
    if (this.waitingData) {
      this.waitingData.complete = true;
      return;
    }

    _BaseStreamController.prototype._handleFragmentLoadComplete.call(this, fragLoadedData);
  };

  _proto.onBufferReset = function
    /* event: Events.BUFFER_RESET */
  onBufferReset() {
    // reset reference to sourcebuffers
    this.mediaBuffer = this.videoBuffer = null;
    this.loadedmetadata = false;
  };

  _proto.onBufferCreated = function onBufferCreated(event, data) {
    var audioTrack = data.tracks.audio;

    if (audioTrack) {
      this.mediaBuffer = audioTrack.buffer;
    }

    if (data.tracks.video) {
      this.videoBuffer = data.tracks.video.buffer;
    }
  };

  _proto.onFragBuffered = function onFragBuffered(event, data) {
    var frag = data.frag,
        part = data.part;

    if (frag.type !== _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistLevelType"].AUDIO) {
      return;
    }

    if (this.fragContextChanged(frag)) {
      // If a level switch was requested while a fragment was buffering, it will emit the FRAG_BUFFERED event upon completion
      // Avoid setting state back to IDLE or concluding the audio switch; otherwise, the switched-to track will not buffer
      this.warn("Fragment " + frag.sn + (part ? ' p: ' + part.index : '') + " of level " + frag.level + " finished buffering, but was aborted. state: " + this.state + ", audioSwitch: " + this.audioSwitch);
      return;
    }

    if (frag.sn !== 'initSegment') {
      this.fragPrevious = frag;

      if (this.audioSwitch) {
        this.audioSwitch = false;
        this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].AUDIO_TRACK_SWITCHED, {
          id: this.trackId
        });
      }
    }

    this.fragBufferedComplete(frag, part);
  };

  _proto.onError = function onError(event, data) {
    switch (data.details) {
      case _errors__WEBPACK_IMPORTED_MODULE_13__["ErrorDetails"].FRAG_LOAD_ERROR:
      case _errors__WEBPACK_IMPORTED_MODULE_13__["ErrorDetails"].FRAG_LOAD_TIMEOUT:
      case _errors__WEBPACK_IMPORTED_MODULE_13__["ErrorDetails"].KEY_LOAD_ERROR:
      case _errors__WEBPACK_IMPORTED_MODULE_13__["ErrorDetails"].KEY_LOAD_TIMEOUT:
        // TODO: Skip fragments that do not belong to this.fragCurrent audio-group id
        this.onFragmentOrKeyLoadError(_types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistLevelType"].AUDIO, data);
        break;

      case _errors__WEBPACK_IMPORTED_MODULE_13__["ErrorDetails"].AUDIO_TRACK_LOAD_ERROR:
      case _errors__WEBPACK_IMPORTED_MODULE_13__["ErrorDetails"].AUDIO_TRACK_LOAD_TIMEOUT:
        //  when in ERROR state, don't switch back to IDLE state in case a non-fatal error is received
        if (this.state !== _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].ERROR && this.state !== _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].STOPPED) {
          // if fatal error, stop processing, otherwise move to IDLE to retry loading
          this.state = data.fatal ? _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].ERROR : _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].IDLE;
          this.warn(data.details + " while loading frag, switching to " + this.state + " state");
        }

        break;

      case _errors__WEBPACK_IMPORTED_MODULE_13__["ErrorDetails"].BUFFER_FULL_ERROR:
        // if in appending state
        if (data.parent === 'audio' && (this.state === _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].PARSING || this.state === _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].PARSED)) {
          var flushBuffer = true;
          var bufferedInfo = this.getFwdBufferInfo(this.mediaBuffer, _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistLevelType"].AUDIO); // 0.5 : tolerance needed as some browsers stalls playback before reaching buffered end
          // reduce max buf len if current position is buffered

          if (bufferedInfo && bufferedInfo.len > 0.5) {
            flushBuffer = !this.reduceMaxBufferLength(bufferedInfo.len);
          }

          if (flushBuffer) {
            // current position is not buffered, but browser is still complaining about buffer full error
            // this happens on IE/Edge, refer to https://github.com/video-dev/hls.js/pull/708
            // in that case flush the whole audio buffer to recover
            this.warn('Buffer full error also media.currentTime is not buffered, flush audio buffer');
            this.fragCurrent = null;

            _BaseStreamController.prototype.flushMainBuffer.call(this, 0, Number.POSITIVE_INFINITY, 'audio');
          }

          this.resetLoadingState();
        }

        break;

      default:
        break;
    }
  };

  _proto.onBufferFlushed = function onBufferFlushed(event, _ref3) {
    var type = _ref3.type;

    if (type === _loader_fragment__WEBPACK_IMPORTED_MODULE_7__["ElementaryStreamTypes"].AUDIO) {
      this.bufferFlushed = true;
    }
  };

  _proto._handleTransmuxComplete = function _handleTransmuxComplete(transmuxResult) {
    var _id3$samples;

    var id = 'audio';
    var hls = this.hls;
    var remuxResult = transmuxResult.remuxResult,
        chunkMeta = transmuxResult.chunkMeta;
    var context = this.getCurrentContext(chunkMeta);

    if (!context) {
      this.warn("The loading context changed while buffering fragment " + chunkMeta.sn + " of level " + chunkMeta.level + ". This chunk will not be buffered.");
      this.resetLiveStartWhenNotLoaded(chunkMeta.level);
      return;
    }

    var frag = context.frag,
        part = context.part;
    var audio = remuxResult.audio,
        text = remuxResult.text,
        id3 = remuxResult.id3,
        initSegment = remuxResult.initSegment; // Check if the current fragment has been aborted. We check this by first seeing if we're still playing the current level.
    // If we are, subsequently check if the currently loading fragment (fragCurrent) has changed.

    if (this.fragContextChanged(frag)) {
      return;
    }

    this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].PARSING;

    if (this.audioSwitch && audio) {
      this.completeAudioSwitch();
    }

    if (initSegment !== null && initSegment !== void 0 && initSegment.tracks) {
      this._bufferInitSegment(initSegment.tracks, frag, chunkMeta);

      hls.trigger(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].FRAG_PARSING_INIT_SEGMENT, {
        frag: frag,
        id: id,
        tracks: initSegment.tracks
      }); // Only flush audio from old audio tracks when PTS is known on new audio track
    }

    if (audio) {
      var startPTS = audio.startPTS,
          endPTS = audio.endPTS,
          startDTS = audio.startDTS,
          endDTS = audio.endDTS;

      if (part) {
        part.elementaryStreams[_loader_fragment__WEBPACK_IMPORTED_MODULE_7__["ElementaryStreamTypes"].AUDIO] = {
          startPTS: startPTS,
          endPTS: endPTS,
          startDTS: startDTS,
          endDTS: endDTS
        };
      }

      frag.setElementaryStreamInfo(_loader_fragment__WEBPACK_IMPORTED_MODULE_7__["ElementaryStreamTypes"].AUDIO, startPTS, endPTS, startDTS, endDTS);
      this.bufferFragmentData(audio, frag, part, chunkMeta);
    }

    if (id3 !== null && id3 !== void 0 && (_id3$samples = id3.samples) !== null && _id3$samples !== void 0 && _id3$samples.length) {
      var emittedID3 = _extends({
        frag: frag,
        id: id
      }, id3);

      hls.trigger(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].FRAG_PARSING_METADATA, emittedID3);
    }

    if (text) {
      var emittedText = _extends({
        frag: frag,
        id: id
      }, text);

      hls.trigger(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].FRAG_PARSING_USERDATA, emittedText);
    }
  };

  _proto._bufferInitSegment = function _bufferInitSegment(tracks, frag, chunkMeta) {
    if (this.state !== _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].PARSING) {
      return;
    } // delete any video track found on audio transmuxer


    if (tracks.video) {
      delete tracks.video;
    } // include levelCodec in audio and video tracks


    var track = tracks.audio;

    if (!track) {
      return;
    }

    track.levelCodec = track.codec;
    track.id = 'audio';
    this.log("Init audio buffer, container:" + track.container + ", codecs[parsed]=[" + track.codec + "]");
    this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].BUFFER_CODECS, tracks);
    var initSegment = track.initSegment;

    if (initSegment !== null && initSegment !== void 0 && initSegment.byteLength) {
      var segment = {
        type: 'audio',
        frag: frag,
        part: null,
        chunkMeta: chunkMeta,
        parent: frag.type,
        data: initSegment
      };
      this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].BUFFER_APPENDING, segment);
    } // trigger handler right now


    this.tick();
  };

  _proto.loadFragment = function loadFragment(frag, trackDetails, targetBufferTime) {
    // only load if fragment is not loaded or if in audio switch
    var fragState = this.fragmentTracker.getState(frag);
    this.fragCurrent = frag; // we force a frag loading in audio switch as fragment tracker might not have evicted previous frags in case of quick audio switch

    if (this.audioSwitch || fragState === _fragment_tracker__WEBPACK_IMPORTED_MODULE_4__["FragmentState"].NOT_LOADED || fragState === _fragment_tracker__WEBPACK_IMPORTED_MODULE_4__["FragmentState"].PARTIAL) {
      if (frag.sn === 'initSegment') {
        this._loadInitSegment(frag);
      } else if (trackDetails.live && !Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(this.initPTS[frag.cc])) {
        this.log("Waiting for video PTS in continuity counter " + frag.cc + " of live stream before loading audio fragment " + frag.sn + " of level " + this.trackId);
        this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].WAITING_INIT_PTS;
      } else {
        this.startFragRequested = true;

        _BaseStreamController.prototype.loadFragment.call(this, frag, trackDetails, targetBufferTime);
      }
    }
  };

  _proto.completeAudioSwitch = function completeAudioSwitch() {
    var hls = this.hls,
        media = this.media,
        trackId = this.trackId;

    if (media) {
      this.log('Switching audio track : flushing all audio');

      _BaseStreamController.prototype.flushMainBuffer.call(this, 0, Number.POSITIVE_INFINITY, 'audio');
    }

    this.audioSwitch = false;
    hls.trigger(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].AUDIO_TRACK_SWITCHED, {
      id: trackId
    });
  };

  return AudioStreamController;
}(_base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["default"]);

/* harmony default export */ __webpack_exports__["default"] = (AudioStreamController);

/***/ }),

/***/ "./src/controller/audio-track-controller.ts":
/*!**************************************************!*\
  !*** ./src/controller/audio-track-controller.ts ***!
  \**************************************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony import */ var _events__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../events */ "./src/events.ts");
/* harmony import */ var _errors__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../errors */ "./src/errors.ts");
/* harmony import */ var _base_playlist_controller__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./base-playlist-controller */ "./src/controller/base-playlist-controller.ts");
/* harmony import */ var _types_loader__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../types/loader */ "./src/types/loader.ts");
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }






var AudioTrackController = /*#__PURE__*/function (_BasePlaylistControll) {
  _inheritsLoose(AudioTrackController, _BasePlaylistControll);

  function AudioTrackController(hls) {
    var _this;

    _this = _BasePlaylistControll.call(this, hls, '[audio-track-controller]') || this;
    _this.tracks = [];
    _this.groupId = null;
    _this.tracksInGroup = [];
    _this.trackId = -1;
    _this.trackName = '';
    _this.selectDefaultTrack = true;

    _this.registerListeners();

    return _this;
  }

  var _proto = AudioTrackController.prototype;

  _proto.registerListeners = function registerListeners() {
    var hls = this.hls;
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MANIFEST_LOADING, this.onManifestLoading, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MANIFEST_PARSED, this.onManifestParsed, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].LEVEL_LOADING, this.onLevelLoading, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].LEVEL_SWITCHING, this.onLevelSwitching, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].AUDIO_TRACK_LOADED, this.onAudioTrackLoaded, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].ERROR, this.onError, this);
  };

  _proto.unregisterListeners = function unregisterListeners() {
    var hls = this.hls;
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MANIFEST_LOADING, this.onManifestLoading, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MANIFEST_PARSED, this.onManifestParsed, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].LEVEL_LOADING, this.onLevelLoading, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].LEVEL_SWITCHING, this.onLevelSwitching, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].AUDIO_TRACK_LOADED, this.onAudioTrackLoaded, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].ERROR, this.onError, this);
  };

  _proto.destroy = function destroy() {
    this.unregisterListeners();
    this.tracks.length = 0;
    this.tracksInGroup.length = 0;

    _BasePlaylistControll.prototype.destroy.call(this);
  };

  _proto.onManifestLoading = function onManifestLoading() {
    this.tracks = [];
    this.groupId = null;
    this.tracksInGroup = [];
    this.trackId = -1;
    this.trackName = '';
    this.selectDefaultTrack = true;
  };

  _proto.onManifestParsed = function onManifestParsed(event, data) {
    this.tracks = data.audioTracks || [];
  };

  _proto.onAudioTrackLoaded = function onAudioTrackLoaded(event, data) {
    var id = data.id,
        details = data.details;
    var currentTrack = this.tracksInGroup[id];

    if (!currentTrack) {
      this.warn("Invalid audio track id " + id);
      return;
    }

    var curDetails = currentTrack.details;
    currentTrack.details = data.details;
    this.log("audioTrack " + id + " loaded [" + details.startSN + "-" + details.endSN + "]");

    if (id === this.trackId) {
      this.retryCount = 0;
      this.playlistLoaded(id, data, curDetails);
    }
  };

  _proto.onLevelLoading = function onLevelLoading(event, data) {
    this.switchLevel(data.level);
  };

  _proto.onLevelSwitching = function onLevelSwitching(event, data) {
    this.switchLevel(data.level);
  };

  _proto.switchLevel = function switchLevel(levelIndex) {
    var levelInfo = this.hls.levels[levelIndex];

    if (!(levelInfo !== null && levelInfo !== void 0 && levelInfo.audioGroupIds)) {
      return;
    }

    var audioGroupId = levelInfo.audioGroupIds[levelInfo.urlId];

    if (this.groupId !== audioGroupId) {
      this.groupId = audioGroupId;
      var audioTracks = this.tracks.filter(function (track) {
        return !audioGroupId || track.groupId === audioGroupId;
      }); // Disable selectDefaultTrack if there are no default tracks

      if (this.selectDefaultTrack && !audioTracks.some(function (track) {
        return track.default;
      })) {
        this.selectDefaultTrack = false;
      }

      this.tracksInGroup = audioTracks;
      var audioTracksUpdated = {
        audioTracks: audioTracks
      };
      this.log("Updating audio tracks, " + audioTracks.length + " track(s) found in \"" + audioGroupId + "\" group-id");
      this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].AUDIO_TRACKS_UPDATED, audioTracksUpdated);
      this.selectInitialTrack();
    }
  };

  _proto.onError = function onError(event, data) {
    _BasePlaylistControll.prototype.onError.call(this, event, data);

    if (data.fatal || !data.context) {
      return;
    }

    if (data.context.type === _types_loader__WEBPACK_IMPORTED_MODULE_3__["PlaylistContextType"].AUDIO_TRACK && data.context.id === this.trackId && data.context.groupId === this.groupId) {
      this.retryLoadingOrFail(data);
    }
  };

  _proto.setAudioTrack = function setAudioTrack(newId) {
    var tracks = this.tracksInGroup; // check if level idx is valid

    if (newId < 0 || newId >= tracks.length) {
      this.warn('Invalid id passed to audio-track controller');
      return;
    } // stopping live reloading timer if any


    this.clearTimer();
    var lastTrack = tracks[this.trackId];
    this.log("Now switching to audio-track index " + newId);
    var track = tracks[newId];
    var id = track.id,
        _track$groupId = track.groupId,
        groupId = _track$groupId === void 0 ? '' : _track$groupId,
        name = track.name,
        type = track.type,
        url = track.url;
    this.trackId = newId;
    this.trackName = name;
    this.selectDefaultTrack = false;
    this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].AUDIO_TRACK_SWITCHING, {
      id: id,
      groupId: groupId,
      name: name,
      type: type,
      url: url
    }); // Do not reload track unless live

    if (track.details && !track.details.live) {
      return;
    }

    var hlsUrlParameters = this.switchParams(track.url, lastTrack === null || lastTrack === void 0 ? void 0 : lastTrack.details);
    this.loadPlaylist(hlsUrlParameters);
  };

  _proto.selectInitialTrack = function selectInitialTrack() {
    var audioTracks = this.tracksInGroup;
    console.assert(audioTracks.length, 'Initial audio track should be selected when tracks are known');
    var currentAudioTrackName = this.trackName;
    var trackId = this.findTrackId(currentAudioTrackName) || this.findTrackId();

    if (trackId !== -1) {
      this.setAudioTrack(trackId);
    } else {
      this.warn("No track found for running audio group-ID: " + this.groupId);
      this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].ERROR, {
        type: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorTypes"].MEDIA_ERROR,
        details: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorDetails"].AUDIO_TRACK_LOAD_ERROR,
        fatal: true
      });
    }
  };

  _proto.findTrackId = function findTrackId(name) {
    var audioTracks = this.tracksInGroup;

    for (var i = 0; i < audioTracks.length; i++) {
      var track = audioTracks[i];

      if (!this.selectDefaultTrack || track.default) {
        if (!name || name === track.name) {
          return track.id;
        }
      }
    }

    return -1;
  };

  _proto.loadPlaylist = function loadPlaylist(hlsUrlParameters) {
    var audioTrack = this.tracksInGroup[this.trackId];

    if (this.shouldLoadTrack(audioTrack)) {
      var id = audioTrack.id;
      var groupId = audioTrack.groupId;
      var url = audioTrack.url;

      if (hlsUrlParameters) {
        try {
          url = hlsUrlParameters.addDirectives(url);
        } catch (error) {
          this.warn("Could not construct new URL with HLS Delivery Directives: " + error);
        }
      } // track not retrieved yet, or live playlist we need to (re)load it


      this.log("loading audio-track playlist for id: " + id);
      this.clearTimer();
      this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].AUDIO_TRACK_LOADING, {
        url: url,
        id: id,
        groupId: groupId,
        deliveryDirectives: hlsUrlParameters || null
      });
    }
  };

  _createClass(AudioTrackController, [{
    key: "audioTracks",
    get: function get() {
      return this.tracksInGroup;
    }
  }, {
    key: "audioTrack",
    get: function get() {
      return this.trackId;
    },
    set: function set(newId) {
      // If audio track is selected from API then don't choose from the manifest default track
      this.selectDefaultTrack = false;
      this.setAudioTrack(newId);
    }
  }]);

  return AudioTrackController;
}(_base_playlist_controller__WEBPACK_IMPORTED_MODULE_2__["default"]);

/* harmony default export */ __webpack_exports__["default"] = (AudioTrackController);

/***/ }),

/***/ "./src/controller/base-playlist-controller.ts":
/*!****************************************************!*\
  !*** ./src/controller/base-playlist-controller.ts ***!
  \****************************************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "default", function() { return BasePlaylistController; });
/* harmony import */ var _home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./src/polyfills/number */ "./src/polyfills/number.ts");
/* harmony import */ var _types_level__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../types/level */ "./src/types/level.ts");
/* harmony import */ var _level_helper__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./level-helper */ "./src/controller/level-helper.ts");
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../utils/logger */ "./src/utils/logger.ts");
/* harmony import */ var _errors__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../errors */ "./src/errors.ts");







var BasePlaylistController = /*#__PURE__*/function () {
  function BasePlaylistController(hls, logPrefix) {
    this.hls = void 0;
    this.timer = -1;
    this.canLoad = false;
    this.retryCount = 0;
    this.log = void 0;
    this.warn = void 0;
    this.log = _utils_logger__WEBPACK_IMPORTED_MODULE_3__["logger"].log.bind(_utils_logger__WEBPACK_IMPORTED_MODULE_3__["logger"], logPrefix + ":");
    this.warn = _utils_logger__WEBPACK_IMPORTED_MODULE_3__["logger"].warn.bind(_utils_logger__WEBPACK_IMPORTED_MODULE_3__["logger"], logPrefix + ":");
    this.hls = hls;
  }

  var _proto = BasePlaylistController.prototype;

  _proto.destroy = function destroy() {
    this.clearTimer(); // @ts-ignore

    this.hls = this.log = this.warn = null;
  };

  _proto.onError = function onError(event, data) {
    if (data.fatal && data.type === _errors__WEBPACK_IMPORTED_MODULE_4__["ErrorTypes"].NETWORK_ERROR) {
      this.clearTimer();
    }
  };

  _proto.clearTimer = function clearTimer() {
    clearTimeout(this.timer);
    this.timer = -1;
  };

  _proto.startLoad = function startLoad() {
    this.canLoad = true;
    this.retryCount = 0;
    this.loadPlaylist();
  };

  _proto.stopLoad = function stopLoad() {
    this.canLoad = false;
    this.clearTimer();
  };

  _proto.switchParams = function switchParams(playlistUri, previous) {
    var renditionReports = previous === null || previous === void 0 ? void 0 : previous.renditionReports;

    if (renditionReports) {
      for (var i = 0; i < renditionReports.length; i++) {
        var attr = renditionReports[i];
        var uri = '' + attr.URI;

        if (uri === playlistUri.substr(-uri.length)) {
          var msn = parseInt(attr['LAST-MSN']);
          var part = parseInt(attr['LAST-PART']);

          if (previous && this.hls.config.lowLatencyMode) {
            var currentGoal = Math.min(previous.age - previous.partTarget, previous.targetduration);

            if (part !== undefined && currentGoal > previous.partTarget) {
              part += 1;
            }
          }

          if (Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(msn)) {
            return new _types_level__WEBPACK_IMPORTED_MODULE_1__["HlsUrlParameters"](msn, Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(part) ? part : undefined, _types_level__WEBPACK_IMPORTED_MODULE_1__["HlsSkip"].No);
          }
        }
      }
    }
  };

  _proto.loadPlaylist = function loadPlaylist(hlsUrlParameters) {};

  _proto.shouldLoadTrack = function shouldLoadTrack(track) {
    return this.canLoad && track && !!track.url && (!track.details || track.details.live);
  };

  _proto.playlistLoaded = function playlistLoaded(index, data, previousDetails) {
    var _this = this;

    var details = data.details,
        stats = data.stats; // Set last updated date-time

    var elapsed = stats.loading.end ? Math.max(0, self.performance.now() - stats.loading.end) : 0;
    details.advancedDateTime = Date.now() - elapsed; // if current playlist is a live playlist, arm a timer to reload it

    if (details.live || previousDetails !== null && previousDetails !== void 0 && previousDetails.live) {
      details.reloaded(previousDetails);

      if (previousDetails) {
        this.log("live playlist " + index + " " + (details.advanced ? 'REFRESHED ' + details.lastPartSn + '-' + details.lastPartIndex : 'MISSED'));
      } // Merge live playlists to adjust fragment starts and fill in delta playlist skipped segments


      if (previousDetails && details.fragments.length > 0) {
        Object(_level_helper__WEBPACK_IMPORTED_MODULE_2__["mergeDetails"])(previousDetails, details);
      }

      if (!this.canLoad || !details.live) {
        return;
      }

      var deliveryDirectives;
      var msn = undefined;
      var part = undefined;

      if (details.canBlockReload && details.endSN && details.advanced) {
        // Load level with LL-HLS delivery directives
        var lowLatencyMode = this.hls.config.lowLatencyMode;
        var lastPartSn = details.lastPartSn;
        var endSn = details.endSN;
        var lastPartIndex = details.lastPartIndex;
        var hasParts = lastPartIndex !== -1;
        var lastPart = lastPartSn === endSn; // When low latency mode is disabled, we'll skip part requests once the last part index is found

        var nextSnStartIndex = lowLatencyMode ? 0 : lastPartIndex;

        if (hasParts) {
          msn = lastPart ? endSn + 1 : lastPartSn;
          part = lastPart ? nextSnStartIndex : lastPartIndex + 1;
        } else {
          msn = endSn + 1;
        } // Low-Latency CDN Tune-in: "age" header and time since load indicates we're behind by more than one part
        // Update directives to obtain the Playlist that has the estimated additional duration of media


        var lastAdvanced = details.age;
        var cdnAge = lastAdvanced + details.ageHeader;
        var currentGoal = Math.min(cdnAge - details.partTarget, details.targetduration * 1.5);

        if (currentGoal > 0) {
          if (previousDetails && currentGoal > previousDetails.tuneInGoal) {
            // If we attempted to get the next or latest playlist update, but currentGoal increased,
            // then we either can't catchup, or the "age" header cannot be trusted.
            this.warn("CDN Tune-in goal increased from: " + previousDetails.tuneInGoal + " to: " + currentGoal + " with playlist age: " + details.age);
            currentGoal = 0;
          } else {
            var segments = Math.floor(currentGoal / details.targetduration);
            msn += segments;

            if (part !== undefined) {
              var parts = Math.round(currentGoal % details.targetduration / details.partTarget);
              part += parts;
            }

            this.log("CDN Tune-in age: " + details.ageHeader + "s last advanced " + lastAdvanced.toFixed(2) + "s goal: " + currentGoal + " skip sn " + segments + " to part " + part);
          }

          details.tuneInGoal = currentGoal;
        }

        deliveryDirectives = this.getDeliveryDirectives(details, data.deliveryDirectives, msn, part);

        if (lowLatencyMode || !lastPart) {
          this.loadPlaylist(deliveryDirectives);
          return;
        }
      } else {
        deliveryDirectives = this.getDeliveryDirectives(details, data.deliveryDirectives, msn, part);
      }

      var reloadInterval = Object(_level_helper__WEBPACK_IMPORTED_MODULE_2__["computeReloadInterval"])(details, stats);

      if (msn !== undefined && details.canBlockReload) {
        reloadInterval -= details.partTarget || 1;
      }

      this.log("reload live playlist " + index + " in " + Math.round(reloadInterval) + " ms");
      this.timer = self.setTimeout(function () {
        return _this.loadPlaylist(deliveryDirectives);
      }, reloadInterval);
    } else {
      this.clearTimer();
    }
  };

  _proto.getDeliveryDirectives = function getDeliveryDirectives(details, previousDeliveryDirectives, msn, part) {
    var skip = Object(_types_level__WEBPACK_IMPORTED_MODULE_1__["getSkipValue"])(details, msn);

    if (previousDeliveryDirectives !== null && previousDeliveryDirectives !== void 0 && previousDeliveryDirectives.skip && details.deltaUpdateFailed) {
      msn = previousDeliveryDirectives.msn;
      part = previousDeliveryDirectives.part;
      skip = _types_level__WEBPACK_IMPORTED_MODULE_1__["HlsSkip"].No;
    }

    return new _types_level__WEBPACK_IMPORTED_MODULE_1__["HlsUrlParameters"](msn, part, skip);
  };

  _proto.retryLoadingOrFail = function retryLoadingOrFail(errorEvent) {
    var _this2 = this;

    var config = this.hls.config;
    var retry = this.retryCount < config.levelLoadingMaxRetry;

    if (retry) {
      var _errorEvent$context;

      this.retryCount++;

      if (errorEvent.details.indexOf('LoadTimeOut') > -1 && (_errorEvent$context = errorEvent.context) !== null && _errorEvent$context !== void 0 && _errorEvent$context.deliveryDirectives) {
        // The LL-HLS request already timed out so retry immediately
        this.warn("retry playlist loading #" + this.retryCount + " after \"" + errorEvent.details + "\"");
        this.loadPlaylist();
      } else {
        // exponential backoff capped to max retry timeout
        var delay = Math.min(Math.pow(2, this.retryCount) * config.levelLoadingRetryDelay, config.levelLoadingMaxRetryTimeout); // Schedule level/track reload

        this.timer = self.setTimeout(function () {
          return _this2.loadPlaylist();
        }, delay);
        this.warn("retry playlist loading #" + this.retryCount + " in " + delay + " ms after \"" + errorEvent.details + "\"");
      }
    } else {
      this.warn("cannot recover from error \"" + errorEvent.details + "\""); // stopping live reloading timer if any

      this.clearTimer(); // switch error to fatal

      errorEvent.fatal = true;
    }

    return retry;
  };

  return BasePlaylistController;
}();



/***/ }),

/***/ "./src/controller/base-stream-controller.ts":
/*!**************************************************!*\
  !*** ./src/controller/base-stream-controller.ts ***!
  \**************************************************/
/*! exports provided: State, default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "State", function() { return State; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "default", function() { return BaseStreamController; });
/* harmony import */ var _home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./src/polyfills/number */ "./src/polyfills/number.ts");
/* harmony import */ var _task_loop__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../task-loop */ "./src/task-loop.ts");
/* harmony import */ var _fragment_tracker__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./fragment-tracker */ "./src/controller/fragment-tracker.ts");
/* harmony import */ var _utils_buffer_helper__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../utils/buffer-helper */ "./src/utils/buffer-helper.ts");
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../utils/logger */ "./src/utils/logger.ts");
/* harmony import */ var _events__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ../events */ "./src/events.ts");
/* harmony import */ var _errors__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ../errors */ "./src/errors.ts");
/* harmony import */ var _types_transmuxer__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ../types/transmuxer */ "./src/types/transmuxer.ts");
/* harmony import */ var _utils_mp4_tools__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! ../utils/mp4-tools */ "./src/utils/mp4-tools.ts");
/* harmony import */ var _utils_discontinuities__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(/*! ../utils/discontinuities */ "./src/utils/discontinuities.ts");
/* harmony import */ var _fragment_finders__WEBPACK_IMPORTED_MODULE_10__ = __webpack_require__(/*! ./fragment-finders */ "./src/controller/fragment-finders.ts");
/* harmony import */ var _level_helper__WEBPACK_IMPORTED_MODULE_11__ = __webpack_require__(/*! ./level-helper */ "./src/controller/level-helper.ts");
/* harmony import */ var _loader_fragment_loader__WEBPACK_IMPORTED_MODULE_12__ = __webpack_require__(/*! ../loader/fragment-loader */ "./src/loader/fragment-loader.ts");
/* harmony import */ var _crypt_decrypter__WEBPACK_IMPORTED_MODULE_13__ = __webpack_require__(/*! ../crypt/decrypter */ "./src/crypt/decrypter.ts");
/* harmony import */ var _utils_time_ranges__WEBPACK_IMPORTED_MODULE_14__ = __webpack_require__(/*! ../utils/time-ranges */ "./src/utils/time-ranges.ts");
/* harmony import */ var _types_loader__WEBPACK_IMPORTED_MODULE_15__ = __webpack_require__(/*! ../types/loader */ "./src/types/loader.ts");






function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }

function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
















var State = {
  STOPPED: 'STOPPED',
  IDLE: 'IDLE',
  KEY_LOADING: 'KEY_LOADING',
  FRAG_LOADING: 'FRAG_LOADING',
  FRAG_LOADING_WAITING_RETRY: 'FRAG_LOADING_WAITING_RETRY',
  WAITING_TRACK: 'WAITING_TRACK',
  PARSING: 'PARSING',
  PARSED: 'PARSED',
  BACKTRACKING: 'BACKTRACKING',
  ENDED: 'ENDED',
  ERROR: 'ERROR',
  WAITING_INIT_PTS: 'WAITING_INIT_PTS',
  WAITING_LEVEL: 'WAITING_LEVEL'
};

var BaseStreamController = /*#__PURE__*/function (_TaskLoop) {
  _inheritsLoose(BaseStreamController, _TaskLoop);

  function BaseStreamController(hls, fragmentTracker, logPrefix) {
    var _this;

    _this = _TaskLoop.call(this) || this;
    _this.hls = void 0;
    _this.fragPrevious = null;
    _this.fragCurrent = null;
    _this.fragmentTracker = void 0;
    _this.transmuxer = null;
    _this._state = State.STOPPED;
    _this.media = void 0;
    _this.mediaBuffer = void 0;
    _this.config = void 0;
    _this.bitrateTest = false;
    _this.lastCurrentTime = 0;
    _this.nextLoadPosition = 0;
    _this.startPosition = 0;
    _this.loadedmetadata = false;
    _this.fragLoadError = 0;
    _this.retryDate = 0;
    _this.levels = null;
    _this.fragmentLoader = void 0;
    _this.levelLastLoaded = null;
    _this.startFragRequested = false;
    _this.decrypter = void 0;
    _this.initPTS = [];
    _this.onvseeking = null;
    _this.onvended = null;
    _this.logPrefix = '';
    _this.log = void 0;
    _this.warn = void 0;
    _this.logPrefix = logPrefix;
    _this.log = _utils_logger__WEBPACK_IMPORTED_MODULE_4__["logger"].log.bind(_utils_logger__WEBPACK_IMPORTED_MODULE_4__["logger"], logPrefix + ":");
    _this.warn = _utils_logger__WEBPACK_IMPORTED_MODULE_4__["logger"].warn.bind(_utils_logger__WEBPACK_IMPORTED_MODULE_4__["logger"], logPrefix + ":");
    _this.hls = hls;
    _this.fragmentLoader = new _loader_fragment_loader__WEBPACK_IMPORTED_MODULE_12__["default"](hls.config);
    _this.fragmentTracker = fragmentTracker;
    _this.config = hls.config;
    _this.decrypter = new _crypt_decrypter__WEBPACK_IMPORTED_MODULE_13__["default"](hls, hls.config);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_5__["Events"].KEY_LOADED, _this.onKeyLoaded, _assertThisInitialized(_this));
    return _this;
  }

  var _proto = BaseStreamController.prototype;

  _proto.doTick = function doTick() {
    this.onTickEnd();
  };

  _proto.onTickEnd = function onTickEnd() {} // eslint-disable-next-line @typescript-eslint/no-unused-vars
  ;

  _proto.startLoad = function startLoad(startPosition) {};

  _proto.stopLoad = function stopLoad() {
    this.fragmentLoader.abort();
    var frag = this.fragCurrent;

    if (frag) {
      this.fragmentTracker.removeFragment(frag);
    }

    this.resetTransmuxer();
    this.fragCurrent = null;
    this.fragPrevious = null;
    this.clearInterval();
    this.clearNextTick();
    this.state = State.STOPPED;
  };

  _proto._streamEnded = function _streamEnded(bufferInfo, levelDetails) {
    var fragCurrent = this.fragCurrent,
        fragmentTracker = this.fragmentTracker; // we just got done loading the final fragment and there is no other buffered range after ...
    // rationale is that in case there are any buffered ranges after, it means that there are unbuffered portion in between
    // so we should not switch to ENDED in that case, to be able to buffer them

    if (!levelDetails.live && fragCurrent && fragCurrent.sn === levelDetails.endSN && !bufferInfo.nextStart) {
      var fragState = fragmentTracker.getState(fragCurrent);
      return fragState === _fragment_tracker__WEBPACK_IMPORTED_MODULE_2__["FragmentState"].PARTIAL || fragState === _fragment_tracker__WEBPACK_IMPORTED_MODULE_2__["FragmentState"].OK;
    }

    return false;
  };

  _proto.onMediaAttached = function onMediaAttached(event, data) {
    var media = this.media = this.mediaBuffer = data.media;
    this.onvseeking = this.onMediaSeeking.bind(this);
    this.onvended = this.onMediaEnded.bind(this);
    media.addEventListener('seeking', this.onvseeking);
    media.addEventListener('ended', this.onvended);
    var config = this.config;

    if (this.levels && config.autoStartLoad && this.state === State.STOPPED) {
      this.startLoad(config.startPosition);
    }
  };

  _proto.onMediaDetaching = function onMediaDetaching() {
    var media = this.media;

    if (media !== null && media !== void 0 && media.ended) {
      this.log('MSE detaching and video ended, reset startPosition');
      this.startPosition = this.lastCurrentTime = 0;
    } // remove video listeners


    if (media) {
      media.removeEventListener('seeking', this.onvseeking);
      media.removeEventListener('ended', this.onvended);
      this.onvseeking = this.onvended = null;
    }

    this.media = this.mediaBuffer = null;
    this.loadedmetadata = false;
    this.fragmentTracker.removeAllFragments();
    this.stopLoad();
  };

  _proto.onMediaSeeking = function onMediaSeeking() {
    var config = this.config,
        fragCurrent = this.fragCurrent,
        media = this.media,
        mediaBuffer = this.mediaBuffer,
        state = this.state;
    var currentTime = media ? media.currentTime : 0;
    var bufferInfo = _utils_buffer_helper__WEBPACK_IMPORTED_MODULE_3__["BufferHelper"].bufferInfo(mediaBuffer || media, currentTime, config.maxBufferHole);
    this.log("media seeking to " + (Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(currentTime) ? currentTime.toFixed(3) : currentTime) + ", state: " + state);

    if (state === State.ENDED) {
      this.resetLoadingState();
    } else if (fragCurrent && !bufferInfo.len) {
      // check if we are seeking to a unbuffered area AND if frag loading is in progress
      var tolerance = config.maxFragLookUpTolerance;
      var fragStartOffset = fragCurrent.start - tolerance;
      var fragEndOffset = fragCurrent.start + fragCurrent.duration + tolerance;
      var pastFragment = currentTime > fragEndOffset; // check if the seek position is past current fragment, and if so abort loading

      if (currentTime < fragStartOffset || pastFragment) {
        if (pastFragment && fragCurrent.loader) {
          this.log('seeking outside of buffer while fragment load in progress, cancel fragment load');
          fragCurrent.loader.abort();
        }

        this.resetLoadingState();
      }
    }

    if (media) {
      this.lastCurrentTime = currentTime;
    } // in case seeking occurs although no media buffered, adjust startPosition and nextLoadPosition to seek target


    if (!this.loadedmetadata && !bufferInfo.len) {
      this.nextLoadPosition = this.startPosition = currentTime;
    } // Async tick to speed up processing


    this.tickImmediate();
  };

  _proto.onMediaEnded = function onMediaEnded() {
    // reset startPosition and lastCurrentTime to restart playback @ stream beginning
    this.startPosition = this.lastCurrentTime = 0;
  };

  _proto.onKeyLoaded = function onKeyLoaded(event, data) {
    if (this.state !== State.KEY_LOADING || data.frag !== this.fragCurrent || !this.levels) {
      return;
    }

    this.state = State.IDLE;
    var levelDetails = this.levels[data.frag.level].details;

    if (levelDetails) {
      this.loadFragment(data.frag, levelDetails, data.frag.start);
    }
  };

  _proto.onHandlerDestroying = function onHandlerDestroying() {
    this.stopLoad();

    _TaskLoop.prototype.onHandlerDestroying.call(this);
  };

  _proto.onHandlerDestroyed = function onHandlerDestroyed() {
    this.state = State.STOPPED;
    this.hls.off(_events__WEBPACK_IMPORTED_MODULE_5__["Events"].KEY_LOADED, this.onKeyLoaded, this);

    if (this.fragmentLoader) {
      this.fragmentLoader.destroy();
    }

    if (this.decrypter) {
      this.decrypter.destroy();
    }

    this.hls = this.log = this.warn = this.decrypter = this.fragmentLoader = this.fragmentTracker = null;

    _TaskLoop.prototype.onHandlerDestroyed.call(this);
  };

  _proto.loadKey = function loadKey(frag, details) {
    this.log("Loading key for " + frag.sn + " of [" + details.startSN + "-" + details.endSN + "], " + (this.logPrefix === '[stream-controller]' ? 'level' : 'track') + " " + frag.level);
    this.state = State.KEY_LOADING;
    this.fragCurrent = frag;
    this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_5__["Events"].KEY_LOADING, {
      frag: frag
    });
  };

  _proto.loadFragment = function loadFragment(frag, levelDetails, targetBufferTime) {
    this._loadFragForPlayback(frag, levelDetails, targetBufferTime);
  };

  _proto._loadFragForPlayback = function _loadFragForPlayback(frag, levelDetails, targetBufferTime) {
    var _this2 = this;

    var progressCallback = function progressCallback(data) {
      if (_this2.fragContextChanged(frag)) {
        _this2.warn("Fragment " + frag.sn + (data.part ? ' p: ' + data.part.index : '') + " of level " + frag.level + " was dropped during download.");

        _this2.fragmentTracker.removeFragment(frag);

        return;
      }

      frag.stats.chunkCount++;

      _this2._handleFragmentLoadProgress(data);
    };

    this._doFragLoad(frag, levelDetails, targetBufferTime, progressCallback).then(function (data) {
      if (!data) {
        // if we're here we probably needed to backtrack or are waiting for more parts
        return;
      }

      _this2.fragLoadError = 0;
      var state = _this2.state;

      if (_this2.fragContextChanged(frag)) {
        if (state === State.FRAG_LOADING || state === State.BACKTRACKING || !_this2.fragCurrent && state === State.PARSING) {
          _this2.fragmentTracker.removeFragment(frag);

          _this2.state = State.IDLE;
        }

        return;
      }

      if ('payload' in data) {
        _this2.log("Loaded fragment " + frag.sn + " of level " + frag.level);

        _this2.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_5__["Events"].FRAG_LOADED, data); // Tracker backtrack must be called after onFragLoaded to update the fragment entity state to BACKTRACKED
        // This happens after handleTransmuxComplete when the worker or progressive is disabled


        if (_this2.state === State.BACKTRACKING) {
          _this2.fragmentTracker.backtrack(frag, data);

          _this2.resetFragmentLoading(frag);

          return;
        }
      } // Pass through the whole payload; controllers not implementing progressive loading receive data from this callback


      _this2._handleFragmentLoadComplete(data);
    }).catch(function (reason) {
      _this2.warn(reason);

      _this2.resetFragmentLoading(frag);
    });
  };

  _proto.flushMainBuffer = function flushMainBuffer(startOffset, endOffset, type) {
    if (type === void 0) {
      type = null;
    }

    if (!(startOffset - endOffset)) {
      return;
    } // When alternate audio is playing, the audio-stream-controller is responsible for the audio buffer. Otherwise,
    // passing a null type flushes both buffers


    var flushScope = {
      startOffset: startOffset,
      endOffset: endOffset,
      type: type
    }; // Reset load errors on flush

    this.fragLoadError = 0;
    this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_5__["Events"].BUFFER_FLUSHING, flushScope);
  };

  _proto._loadInitSegment = function _loadInitSegment(frag) {
    var _this3 = this;

    this._doFragLoad(frag).then(function (data) {
      if (!data || _this3.fragContextChanged(frag) || !_this3.levels) {
        throw new Error('init load aborted');
      }

      return data;
    }).then(function (data) {
      var hls = _this3.hls;
      var payload = data.payload;
      var decryptData = frag.decryptdata; // check to see if the payload needs to be decrypted

      if (payload && payload.byteLength > 0 && decryptData && decryptData.key && decryptData.iv && decryptData.method === 'AES-128') {
        var startTime = self.performance.now(); // decrypt the subtitles

        return _this3.decrypter.webCryptoDecrypt(new Uint8Array(payload), decryptData.key.buffer, decryptData.iv.buffer).then(function (decryptedData) {
          var endTime = self.performance.now();
          hls.trigger(_events__WEBPACK_IMPORTED_MODULE_5__["Events"].FRAG_DECRYPTED, {
            frag: frag,
            payload: decryptedData,
            stats: {
              tstart: startTime,
              tdecrypt: endTime
            }
          });
          data.payload = decryptedData;
          return data;
        });
      }

      return data;
    }).then(function (data) {
      var fragCurrent = _this3.fragCurrent,
          hls = _this3.hls,
          levels = _this3.levels;

      if (!levels) {
        throw new Error('init load aborted, missing levels');
      }

      var details = levels[frag.level].details;
      console.assert(details, 'Level details are defined when init segment is loaded');
      var stats = frag.stats;
      _this3.state = State.IDLE;
      _this3.fragLoadError = 0;
      frag.data = new Uint8Array(data.payload);
      stats.parsing.start = stats.buffering.start = self.performance.now();
      stats.parsing.end = stats.buffering.end = self.performance.now(); // Silence FRAG_BUFFERED event if fragCurrent is null

      if (data.frag === fragCurrent) {
        hls.trigger(_events__WEBPACK_IMPORTED_MODULE_5__["Events"].FRAG_BUFFERED, {
          stats: stats,
          frag: fragCurrent,
          part: null,
          id: frag.type
        });
      }

      _this3.tick();
    }).catch(function (reason) {
      _this3.warn(reason);

      _this3.resetFragmentLoading(frag);
    });
  };

  _proto.fragContextChanged = function fragContextChanged(frag) {
    var fragCurrent = this.fragCurrent;
    return !frag || !fragCurrent || frag.level !== fragCurrent.level || frag.sn !== fragCurrent.sn || frag.urlId !== fragCurrent.urlId;
  };

  _proto.fragBufferedComplete = function fragBufferedComplete(frag, part) {
    var media = this.mediaBuffer ? this.mediaBuffer : this.media;
    this.log("Buffered " + frag.type + " sn: " + frag.sn + (part ? ' part: ' + part.index : '') + " of " + (this.logPrefix === '[stream-controller]' ? 'level' : 'track') + " " + frag.level + " " + _utils_time_ranges__WEBPACK_IMPORTED_MODULE_14__["default"].toString(_utils_buffer_helper__WEBPACK_IMPORTED_MODULE_3__["BufferHelper"].getBuffered(media)));
    this.state = State.IDLE;
    this.tick();
  };

  _proto._handleFragmentLoadComplete = function _handleFragmentLoadComplete(fragLoadedEndData) {
    var transmuxer = this.transmuxer;

    if (!transmuxer) {
      return;
    }

    var frag = fragLoadedEndData.frag,
        part = fragLoadedEndData.part,
        partsLoaded = fragLoadedEndData.partsLoaded; // If we did not load parts, or loaded all parts, we have complete (not partial) fragment data

    var complete = !partsLoaded || partsLoaded.length === 0 || partsLoaded.some(function (fragLoaded) {
      return !fragLoaded;
    });
    var chunkMeta = new _types_transmuxer__WEBPACK_IMPORTED_MODULE_7__["ChunkMetadata"](frag.level, frag.sn, frag.stats.chunkCount + 1, 0, part ? part.index : -1, !complete);
    transmuxer.flush(chunkMeta);
  } // eslint-disable-next-line @typescript-eslint/no-unused-vars
  ;

  _proto._handleFragmentLoadProgress = function _handleFragmentLoadProgress(frag) {};

  _proto._doFragLoad = function _doFragLoad(frag, details, targetBufferTime, progressCallback) {
    var _this4 = this;

    if (targetBufferTime === void 0) {
      targetBufferTime = null;
    }

    if (!this.levels) {
      throw new Error('frag load aborted, missing levels');
    }

    targetBufferTime = Math.max(frag.start, targetBufferTime || 0);

    if (this.config.lowLatencyMode && details) {
      var partList = details.partList;

      if (partList && progressCallback) {
        if (targetBufferTime > frag.end && details.fragmentHint) {
          frag = details.fragmentHint;
        }

        var partIndex = this.getNextPart(partList, frag, targetBufferTime);

        if (partIndex > -1) {
          var part = partList[partIndex];
          this.log("Loading part sn: " + frag.sn + " p: " + part.index + " cc: " + frag.cc + " of playlist [" + details.startSN + "-" + details.endSN + "] parts [0-" + partIndex + "-" + (partList.length - 1) + "] " + (this.logPrefix === '[stream-controller]' ? 'level' : 'track') + ": " + frag.level + ", target: " + parseFloat(targetBufferTime.toFixed(3)));
          this.nextLoadPosition = part.start + part.duration;
          this.state = State.FRAG_LOADING;
          this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_5__["Events"].FRAG_LOADING, {
            frag: frag,
            part: partList[partIndex],
            targetBufferTime: targetBufferTime
          });
          return this.doFragPartsLoad(frag, partList, partIndex, progressCallback).catch(function (error) {
            return _this4.handleFragLoadError(error);
          });
        } else if (!frag.url || this.loadedEndOfParts(partList, targetBufferTime)) {
          // Fragment hint has no parts
          return Promise.resolve(null);
        }
      }
    }

    this.log("Loading fragment " + frag.sn + " cc: " + frag.cc + " " + (details ? 'of [' + details.startSN + '-' + details.endSN + '] ' : '') + (this.logPrefix === '[stream-controller]' ? 'level' : 'track') + ": " + frag.level + ", target: " + parseFloat(targetBufferTime.toFixed(3))); // Don't update nextLoadPosition for fragments which are not buffered

    if (Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(frag.sn) && !this.bitrateTest) {
      this.nextLoadPosition = frag.start + frag.duration;
    }

    this.state = State.FRAG_LOADING;
    this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_5__["Events"].FRAG_LOADING, {
      frag: frag,
      targetBufferTime: targetBufferTime
    });
    return this.fragmentLoader.load(frag, progressCallback).catch(function (error) {
      return _this4.handleFragLoadError(error);
    });
  };

  _proto.doFragPartsLoad = function doFragPartsLoad(frag, partList, partIndex, progressCallback) {
    var _this5 = this;

    return new Promise(function (resolve, reject) {
      var partsLoaded = [];

      var loadPartIndex = function loadPartIndex(index) {
        var part = partList[index];

        _this5.fragmentLoader.loadPart(frag, part, progressCallback).then(function (partLoadedData) {
          partsLoaded[part.index] = partLoadedData;
          var loadedPart = partLoadedData.part;

          _this5.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_5__["Events"].FRAG_LOADED, partLoadedData);

          var nextPart = partList[index + 1];

          if (nextPart && nextPart.fragment === frag) {
            loadPartIndex(index + 1);
          } else {
            return resolve({
              frag: frag,
              part: loadedPart,
              partsLoaded: partsLoaded
            });
          }
        }).catch(reject);
      };

      loadPartIndex(partIndex);
    });
  };

  _proto.handleFragLoadError = function handleFragLoadError(_ref) {
    var data = _ref.data;

    if (data && data.details === _errors__WEBPACK_IMPORTED_MODULE_6__["ErrorDetails"].INTERNAL_ABORTED) {
      this.handleFragLoadAborted(data.frag, data.part);
    } else {
      this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_5__["Events"].ERROR, data);
    }

    return null;
  };

  _proto._handleTransmuxerFlush = function _handleTransmuxerFlush(chunkMeta) {
    var context = this.getCurrentContext(chunkMeta);

    if (!context || this.state !== State.PARSING) {
      if (!this.fragCurrent) {
        this.state = State.IDLE;
      }

      return;
    }

    var frag = context.frag,
        part = context.part,
        level = context.level;
    var now = self.performance.now();
    frag.stats.parsing.end = now;

    if (part) {
      part.stats.parsing.end = now;
    }

    this.updateLevelTiming(frag, part, level, chunkMeta.partial);
  };

  _proto.getCurrentContext = function getCurrentContext(chunkMeta) {
    var levels = this.levels;
    var levelIndex = chunkMeta.level,
        sn = chunkMeta.sn,
        partIndex = chunkMeta.part;

    if (!levels || !levels[levelIndex]) {
      this.warn("Levels object was unset while buffering fragment " + sn + " of level " + levelIndex + ". The current chunk will not be buffered.");
      return null;
    }

    var level = levels[levelIndex];
    var part = partIndex > -1 ? Object(_level_helper__WEBPACK_IMPORTED_MODULE_11__["getPartWith"])(level, sn, partIndex) : null;
    var frag = part ? part.fragment : Object(_level_helper__WEBPACK_IMPORTED_MODULE_11__["getFragmentWithSN"])(level, sn, this.fragCurrent);

    if (!frag) {
      return null;
    }

    return {
      frag: frag,
      part: part,
      level: level
    };
  };

  _proto.bufferFragmentData = function bufferFragmentData(data, frag, part, chunkMeta) {
    if (!data || this.state !== State.PARSING) {
      return;
    }

    var data1 = data.data1,
        data2 = data.data2;
    var buffer = data1;

    if (data1 && data2) {
      // Combine the moof + mdat so that we buffer with a single append
      buffer = Object(_utils_mp4_tools__WEBPACK_IMPORTED_MODULE_8__["appendUint8Array"])(data1, data2);
    }

    if (!buffer || !buffer.length) {
      return;
    }

    var segment = {
      type: data.type,
      frag: frag,
      part: part,
      chunkMeta: chunkMeta,
      parent: frag.type,
      data: buffer
    };
    this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_5__["Events"].BUFFER_APPENDING, segment);

    if (data.dropped && data.independent && !part) {
      // Clear buffer so that we reload previous segments sequentially if required
      this.flushBufferGap(frag);
    }
  };

  _proto.flushBufferGap = function flushBufferGap(frag) {
    var media = this.media;

    if (!media) {
      return;
    } // If currentTime is not buffered, clear the back buffer so that we can backtrack as much as needed


    if (!_utils_buffer_helper__WEBPACK_IMPORTED_MODULE_3__["BufferHelper"].isBuffered(media, media.currentTime)) {
      this.flushMainBuffer(0, frag.start);
      return;
    } // Remove back-buffer without interrupting playback to allow back tracking


    var currentTime = media.currentTime;
    var bufferInfo = _utils_buffer_helper__WEBPACK_IMPORTED_MODULE_3__["BufferHelper"].bufferInfo(media, currentTime, 0);
    var fragDuration = frag.duration;
    var segmentFraction = Math.min(this.config.maxFragLookUpTolerance * 2, fragDuration * 0.25);
    var start = Math.max(Math.min(frag.start - segmentFraction, bufferInfo.end - segmentFraction), currentTime + segmentFraction);

    if (frag.start - start > segmentFraction) {
      this.flushMainBuffer(start, frag.start);
    }
  };

  _proto.getFwdBufferInfo = function getFwdBufferInfo(bufferable, type) {
    var config = this.config;
    var pos = this.getLoadPosition();

    if (!Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(pos)) {
      return null;
    }

    var bufferInfo = _utils_buffer_helper__WEBPACK_IMPORTED_MODULE_3__["BufferHelper"].bufferInfo(bufferable, pos, config.maxBufferHole); // Workaround flaw in getting forward buffer when maxBufferHole is smaller than gap at current pos

    if (bufferInfo.len === 0 && bufferInfo.nextStart !== undefined) {
      var bufferedFragAtPos = this.fragmentTracker.getBufferedFrag(pos, type);

      if (bufferedFragAtPos && bufferInfo.nextStart < bufferedFragAtPos.end) {
        return _utils_buffer_helper__WEBPACK_IMPORTED_MODULE_3__["BufferHelper"].bufferInfo(bufferable, pos, Math.max(bufferInfo.nextStart, config.maxBufferHole));
      }
    }

    return bufferInfo;
  };

  _proto.getMaxBufferLength = function getMaxBufferLength(levelBitrate) {
    var config = this.config;
    var maxBufLen;

    if (levelBitrate) {
      maxBufLen = Math.max(8 * config.maxBufferSize / levelBitrate, config.maxBufferLength);
    } else {
      maxBufLen = config.maxBufferLength;
    }

    return Math.min(maxBufLen, config.maxMaxBufferLength);
  };

  _proto.reduceMaxBufferLength = function reduceMaxBufferLength(threshold) {
    var config = this.config;
    var minLength = threshold || config.maxBufferLength;

    if (config.maxMaxBufferLength >= minLength) {
      // reduce max buffer length as it might be too high. we do this to avoid loop flushing ...
      config.maxMaxBufferLength /= 2;
      this.warn("Reduce max buffer length to " + config.maxMaxBufferLength + "s");
      return true;
    }

    return false;
  };

  _proto.getNextFragment = function getNextFragment(pos, levelDetails) {
    var _frag, _frag2;

    var fragments = levelDetails.fragments;
    var fragLen = fragments.length;

    if (!fragLen) {
      return null;
    } // find fragment index, contiguous with end of buffer position


    var config = this.config;
    var start = fragments[0].start;
    var frag;

    if (levelDetails.live) {
      var initialLiveManifestSize = config.initialLiveManifestSize;

      if (fragLen < initialLiveManifestSize) {
        this.warn("Not enough fragments to start playback (have: " + fragLen + ", need: " + initialLiveManifestSize + ")");
        return null;
      } // The real fragment start times for a live stream are only known after the PTS range for that level is known.
      // In order to discover the range, we load the best matching fragment for that level and demux it.
      // Do not load using live logic if the starting frag is requested - we want to use getFragmentAtPosition() so that
      // we get the fragment matching that start time


      if (!levelDetails.PTSKnown && !this.startFragRequested && this.startPosition === -1) {
        frag = this.getInitialLiveFragment(levelDetails, fragments);
        this.startPosition = frag ? this.hls.liveSyncPosition || frag.start : pos;
      }
    } else if (pos <= start) {
      // VoD playlist: if loadPosition before start of playlist, load first fragment
      frag = fragments[0];
    } // If we haven't run into any special cases already, just load the fragment most closely matching the requested position


    if (!frag) {
      var end = config.lowLatencyMode ? levelDetails.partEnd : levelDetails.fragmentEnd;
      frag = this.getFragmentAtPosition(pos, end, levelDetails);
    } // If an initSegment is present, it must be buffered first


    if ((_frag = frag) !== null && _frag !== void 0 && _frag.initSegment && !((_frag2 = frag) !== null && _frag2 !== void 0 && _frag2.initSegment.data) && !this.bitrateTest) {
      frag = frag.initSegment;
    }

    return frag;
  };

  _proto.getNextPart = function getNextPart(partList, frag, targetBufferTime) {
    var nextPart = -1;
    var contiguous = false;
    var independentAttrOmitted = true;

    for (var i = 0, len = partList.length; i < len; i++) {
      var part = partList[i];
      independentAttrOmitted = independentAttrOmitted && !part.independent;

      if (nextPart > -1 && targetBufferTime < part.start) {
        break;
      }

      var loaded = part.loaded;

      if (!loaded && (contiguous || part.independent || independentAttrOmitted) && part.fragment === frag) {
        nextPart = i;
      }

      contiguous = loaded;
    }

    return nextPart;
  };

  _proto.loadedEndOfParts = function loadedEndOfParts(partList, targetBufferTime) {
    var lastPart = partList[partList.length - 1];
    return lastPart && targetBufferTime > lastPart.start && lastPart.loaded;
  }
  /*
   This method is used find the best matching first fragment for a live playlist. This fragment is used to calculate the
   "sliding" of the playlist, which is its offset from the start of playback. After sliding we can compute the real
   start and end times for each fragment in the playlist (after which this method will not need to be called).
  */
  ;

  _proto.getInitialLiveFragment = function getInitialLiveFragment(levelDetails, fragments) {
    var fragPrevious = this.fragPrevious;
    var frag = null;

    if (fragPrevious) {
      if (levelDetails.hasProgramDateTime) {
        // Prefer using PDT, because it can be accurate enough to choose the correct fragment without knowing the level sliding
        this.log("Live playlist, switching playlist, load frag with same PDT: " + fragPrevious.programDateTime);
        frag = Object(_fragment_finders__WEBPACK_IMPORTED_MODULE_10__["findFragmentByPDT"])(fragments, fragPrevious.endProgramDateTime, this.config.maxFragLookUpTolerance);
      }

      if (!frag) {
        // SN does not need to be accurate between renditions, but depending on the packaging it may be so.
        var targetSN = fragPrevious.sn + 1;

        if (targetSN >= levelDetails.startSN && targetSN <= levelDetails.endSN) {
          var fragNext = fragments[targetSN - levelDetails.startSN]; // Ensure that we're staying within the continuity range, since PTS resets upon a new range

          if (fragPrevious.cc === fragNext.cc) {
            frag = fragNext;
            this.log("Live playlist, switching playlist, load frag with next SN: " + frag.sn);
          }
        } // It's important to stay within the continuity range if available; otherwise the fragments in the playlist
        // will have the wrong start times


        if (!frag) {
          frag = Object(_fragment_finders__WEBPACK_IMPORTED_MODULE_10__["findFragWithCC"])(fragments, fragPrevious.cc);

          if (frag) {
            this.log("Live playlist, switching playlist, load frag with same CC: " + frag.sn);
          }
        }
      }
    } else {
      // Find a new start fragment when fragPrevious is null
      var liveStart = this.hls.liveSyncPosition;

      if (liveStart !== null) {
        frag = this.getFragmentAtPosition(liveStart, this.bitrateTest ? levelDetails.fragmentEnd : levelDetails.edge, levelDetails);
      }
    }

    return frag;
  }
  /*
  This method finds the best matching fragment given the provided position.
   */
  ;

  _proto.getFragmentAtPosition = function getFragmentAtPosition(bufferEnd, end, levelDetails) {
    var config = this.config,
        fragPrevious = this.fragPrevious;
    var fragments = levelDetails.fragments,
        endSN = levelDetails.endSN;
    var fragmentHint = levelDetails.fragmentHint;
    var tolerance = config.maxFragLookUpTolerance;
    var loadingParts = !!(config.lowLatencyMode && levelDetails.partList && fragmentHint);

    if (loadingParts && fragmentHint && !this.bitrateTest) {
      // Include incomplete fragment with parts at end
      fragments = fragments.concat(fragmentHint);
      endSN = fragmentHint.sn;
    }

    var frag;

    if (bufferEnd < end) {
      var lookupTolerance = bufferEnd > end - tolerance ? 0 : tolerance; // Remove the tolerance if it would put the bufferEnd past the actual end of stream
      // Uses buffer and sequence number to calculate switch segment (required if using EXT-X-DISCONTINUITY-SEQUENCE)

      frag = Object(_fragment_finders__WEBPACK_IMPORTED_MODULE_10__["findFragmentByPTS"])(fragPrevious, fragments, bufferEnd, lookupTolerance);
    } else {
      // reach end of playlist
      frag = fragments[fragments.length - 1];
    }

    if (frag) {
      var curSNIdx = frag.sn - levelDetails.startSN;
      var sameLevel = fragPrevious && frag.level === fragPrevious.level;
      var nextFrag = fragments[curSNIdx + 1];
      var fragState = this.fragmentTracker.getState(frag);

      if (fragState === _fragment_tracker__WEBPACK_IMPORTED_MODULE_2__["FragmentState"].BACKTRACKED) {
        frag = null;
        var i = curSNIdx;

        while (fragments[i] && this.fragmentTracker.getState(fragments[i]) === _fragment_tracker__WEBPACK_IMPORTED_MODULE_2__["FragmentState"].BACKTRACKED) {
          // When fragPrevious is null, backtrack to first the first fragment is not BACKTRACKED for loading
          // When fragPrevious is set, we want the first BACKTRACKED fragment for parsing and buffering
          if (!fragPrevious) {
            frag = fragments[--i];
          } else {
            frag = fragments[i--];
          }
        }

        if (!frag) {
          frag = nextFrag;
        }
      } else if (fragPrevious && frag.sn === fragPrevious.sn && !loadingParts) {
        // Force the next fragment to load if the previous one was already selected. This can occasionally happen with
        // non-uniform fragment durations
        if (sameLevel) {
          if (frag.sn < endSN && this.fragmentTracker.getState(nextFrag) !== _fragment_tracker__WEBPACK_IMPORTED_MODULE_2__["FragmentState"].OK) {
            this.log("SN " + frag.sn + " just loaded, load next one: " + nextFrag.sn);
            frag = nextFrag;
          } else {
            frag = null;
          }
        }
      }
    }

    return frag;
  };

  _proto.synchronizeToLiveEdge = function synchronizeToLiveEdge(levelDetails) {
    var config = this.config,
        media = this.media;

    if (!media) {
      return;
    }

    var liveSyncPosition = this.hls.liveSyncPosition;
    var currentTime = media.currentTime;
    var start = levelDetails.fragments[0].start;
    var end = levelDetails.edge;
    var withinSlidingWindow = currentTime >= start - config.maxFragLookUpTolerance && currentTime <= end; // Continue if we can seek forward to sync position or if current time is outside of sliding window

    if (liveSyncPosition !== null && media.duration > liveSyncPosition && (currentTime < liveSyncPosition || !withinSlidingWindow)) {
      // Continue if buffer is starving or if current time is behind max latency
      var maxLatency = config.liveMaxLatencyDuration !== undefined ? config.liveMaxLatencyDuration : config.liveMaxLatencyDurationCount * levelDetails.targetduration;

      if (!withinSlidingWindow && media.readyState < 4 || currentTime < end - maxLatency) {
        if (!this.loadedmetadata) {
          this.nextLoadPosition = liveSyncPosition;
        } // Only seek if ready and there is not a significant forward buffer available for playback


        if (media.readyState) {
          this.warn("Playback: " + currentTime.toFixed(3) + " is located too far from the end of live sliding playlist: " + end + ", reset currentTime to : " + liveSyncPosition.toFixed(3));
          media.currentTime = liveSyncPosition;
        }
      }
    }
  };

  _proto.alignPlaylists = function alignPlaylists(details, previousDetails) {
    var levels = this.levels,
        levelLastLoaded = this.levelLastLoaded,
        fragPrevious = this.fragPrevious;
    var lastLevel = levelLastLoaded !== null ? levels[levelLastLoaded] : null; // FIXME: If not for `shouldAlignOnDiscontinuities` requiring fragPrevious.cc,
    //  this could all go in level-helper mergeDetails()

    var length = details.fragments.length;

    if (!length) {
      this.warn("No fragments in live playlist");
      return 0;
    }

    var slidingStart = details.fragments[0].start;
    var firstLevelLoad = !previousDetails;

    var aligned = details.alignedSliding && Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(slidingStart);

    if (firstLevelLoad || !aligned && !slidingStart) {
      Object(_utils_discontinuities__WEBPACK_IMPORTED_MODULE_9__["alignStream"])(fragPrevious, lastLevel, details);
      var alignedSlidingStart = details.fragments[0].start;
      this.log("Live playlist sliding: " + alignedSlidingStart.toFixed(2) + " start-sn: " + (previousDetails ? previousDetails.startSN : 'na') + "->" + details.startSN + " prev-sn: " + (fragPrevious ? fragPrevious.sn : 'na') + " fragments: " + length);
      return alignedSlidingStart;
    }

    return slidingStart;
  };

  _proto.waitForCdnTuneIn = function waitForCdnTuneIn(details) {
    // Wait for Low-Latency CDN Tune-in to get an updated playlist
    var advancePartLimit = 3;
    return details.live && details.canBlockReload && details.tuneInGoal > Math.max(details.partHoldBack, details.partTarget * advancePartLimit);
  };

  _proto.setStartPosition = function setStartPosition(details, sliding) {
    // compute start position if set to -1. use it straight away if value is defined
    var startPosition = this.startPosition;

    if (startPosition < sliding) {
      startPosition = -1;
    }

    if (startPosition === -1 || this.lastCurrentTime === -1) {
      // first, check if start time offset has been set in playlist, if yes, use this value
      var startTimeOffset = details.startTimeOffset;

      if (Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(startTimeOffset)) {
        startPosition = sliding + startTimeOffset;

        if (startTimeOffset < 0) {
          startPosition += details.totalduration;
        }

        startPosition = Math.min(Math.max(sliding, startPosition), sliding + details.totalduration);
        this.log("Start time offset " + startTimeOffset + " found in playlist, adjust startPosition to " + startPosition);
        this.startPosition = startPosition;
      } else if (details.live) {
        // Leave this.startPosition at -1, so that we can use `getInitialLiveFragment` logic when startPosition has
        // not been specified via the config or an as an argument to startLoad (#3736).
        startPosition = this.hls.liveSyncPosition || sliding;
      } else {
        this.startPosition = startPosition = 0;
      }

      this.lastCurrentTime = startPosition;
    }

    this.nextLoadPosition = startPosition;
  };

  _proto.getLoadPosition = function getLoadPosition() {
    var media = this.media; // if we have not yet loaded any fragment, start loading from start position

    var pos = 0;

    if (this.loadedmetadata && media) {
      pos = media.currentTime;
    } else if (this.nextLoadPosition) {
      pos = this.nextLoadPosition;
    }

    return pos;
  };

  _proto.handleFragLoadAborted = function handleFragLoadAborted(frag, part) {
    if (this.transmuxer && frag.sn !== 'initSegment' && frag.stats.aborted) {
      this.warn("Fragment " + frag.sn + (part ? ' part' + part.index : '') + " of level " + frag.level + " was aborted");
      this.resetFragmentLoading(frag);
    }
  };

  _proto.resetFragmentLoading = function resetFragmentLoading(frag) {
    if (!this.fragCurrent || !this.fragContextChanged(frag)) {
      this.state = State.IDLE;
    }
  };

  _proto.onFragmentOrKeyLoadError = function onFragmentOrKeyLoadError(filterType, data) {
    if (data.fatal) {
      return;
    }

    var frag = data.frag; // Handle frag error related to caller's filterType

    if (!frag || frag.type !== filterType) {
      return;
    }

    var fragCurrent = this.fragCurrent;
    console.assert(fragCurrent && frag.sn === fragCurrent.sn && frag.level === fragCurrent.level && frag.urlId === fragCurrent.urlId, 'Frag load error must match current frag to retry');
    var config = this.config; // keep retrying until the limit will be reached

    if (this.fragLoadError + 1 <= config.fragLoadingMaxRetry) {
      if (this.resetLiveStartWhenNotLoaded(frag.level)) {
        return;
      } // exponential backoff capped to config.fragLoadingMaxRetryTimeout


      var delay = Math.min(Math.pow(2, this.fragLoadError) * config.fragLoadingRetryDelay, config.fragLoadingMaxRetryTimeout);
      this.warn("Fragment " + frag.sn + " of " + filterType + " " + frag.level + " failed to load, retrying in " + delay + "ms");
      this.retryDate = self.performance.now() + delay;
      this.fragLoadError++;
      this.state = State.FRAG_LOADING_WAITING_RETRY;
    } else if (data.levelRetry) {
      if (filterType === _types_loader__WEBPACK_IMPORTED_MODULE_15__["PlaylistLevelType"].AUDIO) {
        // Reset current fragment since audio track audio is essential and may not have a fail-over track
        this.fragCurrent = null;
      } // Fragment errors that result in a level switch or redundant fail-over
      // should reset the stream controller state to idle


      this.fragLoadError = 0;
      this.state = State.IDLE;
    } else {
      _utils_logger__WEBPACK_IMPORTED_MODULE_4__["logger"].error(data.details + " reaches max retry, redispatch as fatal ..."); // switch error to fatal

      data.fatal = true;
      this.hls.stopLoad();
      this.state = State.ERROR;
    }
  };

  _proto.afterBufferFlushed = function afterBufferFlushed(media, bufferType, playlistType) {
    if (!media) {
      return;
    } // After successful buffer flushing, filter flushed fragments from bufferedFrags use mediaBuffered instead of media
    // (so that we will check against video.buffered ranges in case of alt audio track)


    var bufferedTimeRanges = _utils_buffer_helper__WEBPACK_IMPORTED_MODULE_3__["BufferHelper"].getBuffered(media);
    this.fragmentTracker.detectEvictedFragments(bufferType, bufferedTimeRanges, playlistType);

    if (this.state === State.ENDED) {
      this.resetLoadingState();
    }
  };

  _proto.resetLoadingState = function resetLoadingState() {
    this.fragCurrent = null;
    this.fragPrevious = null;
    this.state = State.IDLE;
  };

  _proto.resetLiveStartWhenNotLoaded = function resetLiveStartWhenNotLoaded(level) {
    // if loadedmetadata is not set, it means that we are emergency switch down on first frag
    // in that case, reset startFragRequested flag
    if (!this.loadedmetadata) {
      this.startFragRequested = false;
      var details = this.levels ? this.levels[level].details : null;

      if (details !== null && details !== void 0 && details.live) {
        // We can't afford to retry after a delay in a live scenario. Update the start position and return to IDLE.
        this.startPosition = -1;
        this.setStartPosition(details, 0);
        this.resetLoadingState();
        return true;
      }

      this.nextLoadPosition = this.startPosition;
    }

    return false;
  };

  _proto.updateLevelTiming = function updateLevelTiming(frag, part, level, partial) {
    var _this6 = this;

    var details = level.details;
    console.assert(!!details, 'level.details must be defined');
    var parsed = Object.keys(frag.elementaryStreams).reduce(function (result, type) {
      var info = frag.elementaryStreams[type];

      if (info) {
        var parsedDuration = info.endPTS - info.startPTS;

        if (parsedDuration <= 0) {
          // Destroy the transmuxer after it's next time offset failed to advance because duration was <= 0.
          // The new transmuxer will be configured with a time offset matching the next fragment start,
          // preventing the timeline from shifting.
          _this6.warn("Could not parse fragment " + frag.sn + " " + type + " duration reliably (" + parsedDuration + ") resetting transmuxer to fallback to playlist timing");

          _this6.resetTransmuxer();

          return result || false;
        }

        var drift = partial ? 0 : Object(_level_helper__WEBPACK_IMPORTED_MODULE_11__["updateFragPTSDTS"])(details, frag, info.startPTS, info.endPTS, info.startDTS, info.endDTS);

        _this6.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_5__["Events"].LEVEL_PTS_UPDATED, {
          details: details,
          level: level,
          drift: drift,
          type: type,
          frag: frag,
          start: info.startPTS,
          end: info.endPTS
        });

        return true;
      }

      return result;
    }, false);

    if (parsed) {
      this.state = State.PARSED;
      this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_5__["Events"].FRAG_PARSED, {
        frag: frag,
        part: part
      });
    } else {
      this.resetLoadingState();
    }
  };

  _proto.resetTransmuxer = function resetTransmuxer() {
    if (this.transmuxer) {
      this.transmuxer.destroy();
      this.transmuxer = null;
    }
  };

  _createClass(BaseStreamController, [{
    key: "state",
    get: function get() {
      return this._state;
    },
    set: function set(nextState) {
      var previousState = this._state;

      if (previousState !== nextState) {
        this._state = nextState;
        this.log(previousState + "->" + nextState);
      }
    }
  }]);

  return BaseStreamController;
}(_task_loop__WEBPACK_IMPORTED_MODULE_1__["default"]);



/***/ }),

/***/ "./src/controller/buffer-controller.ts":
/*!*********************************************!*\
  !*** ./src/controller/buffer-controller.ts ***!
  \*********************************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "default", function() { return BufferController; });
/* harmony import */ var _home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./src/polyfills/number */ "./src/polyfills/number.ts");
/* harmony import */ var _events__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../events */ "./src/events.ts");
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../utils/logger */ "./src/utils/logger.ts");
/* harmony import */ var _errors__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../errors */ "./src/errors.ts");
/* harmony import */ var _utils_buffer_helper__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../utils/buffer-helper */ "./src/utils/buffer-helper.ts");
/* harmony import */ var _utils_mediasource_helper__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ../utils/mediasource-helper */ "./src/utils/mediasource-helper.ts");
/* harmony import */ var _loader_fragment__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ../loader/fragment */ "./src/loader/fragment.ts");
/* harmony import */ var _buffer_operation_queue__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ./buffer-operation-queue */ "./src/controller/buffer-operation-queue.ts");












var MediaSource = Object(_utils_mediasource_helper__WEBPACK_IMPORTED_MODULE_5__["getMediaSource"])();
var VIDEO_CODEC_PROFILE_REPACE = /([ha]vc.)(?:\.[^.,]+)+/;

var BufferController = /*#__PURE__*/function () {
  // The level details used to determine duration, target-duration and live
  // cache the self generated object url to detect hijack of video tag
  // A queue of buffer operations which require the SourceBuffer to not be updating upon execution
  // References to event listeners for each SourceBuffer, so that they can be referenced for event removal
  // The number of BUFFER_CODEC events received before any sourceBuffers are created
  // The total number of BUFFER_CODEC events received
  // A reference to the attached media element
  // A reference to the active media source
  // counters
  function BufferController(_hls) {
    var _this = this;

    this.details = null;
    this._objectUrl = null;
    this.operationQueue = void 0;
    this.listeners = void 0;
    this.hls = void 0;
    this.bufferCodecEventsExpected = 0;
    this._bufferCodecEventsTotal = 0;
    this.media = null;
    this.mediaSource = null;
    this.appendError = 0;
    this.tracks = {};
    this.pendingTracks = {};
    this.sourceBuffer = void 0;

    this._onMediaSourceOpen = function () {
      var hls = _this.hls,
          media = _this.media,
          mediaSource = _this.mediaSource;
      _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].log('[buffer-controller]: Media source opened');

      if (media) {
        _this.updateMediaElementDuration();

        hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].MEDIA_ATTACHED, {
          media: media
        });
      }

      if (mediaSource) {
        // once received, don't listen anymore to sourceopen event
        mediaSource.removeEventListener('sourceopen', _this._onMediaSourceOpen);
      }

      _this.checkPendingTracks();
    };

    this._onMediaSourceClose = function () {
      _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].log('[buffer-controller]: Media source closed');
    };

    this._onMediaSourceEnded = function () {
      _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].log('[buffer-controller]: Media source ended');
    };

    this.hls = _hls;

    this._initSourceBuffer();

    this.registerListeners();
  }

  var _proto = BufferController.prototype;

  _proto.hasSourceTypes = function hasSourceTypes() {
    return this.getSourceBufferTypes().length > 0 || Object.keys(this.pendingTracks).length > 0;
  };

  _proto.destroy = function destroy() {
    this.unregisterListeners();
    this.details = null;
  };

  _proto.registerListeners = function registerListeners() {
    var hls = this.hls;
    hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].MEDIA_ATTACHING, this.onMediaAttaching, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].MEDIA_DETACHING, this.onMediaDetaching, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].MANIFEST_PARSED, this.onManifestParsed, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].BUFFER_RESET, this.onBufferReset, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].BUFFER_APPENDING, this.onBufferAppending, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].BUFFER_CODECS, this.onBufferCodecs, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].BUFFER_EOS, this.onBufferEos, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].BUFFER_FLUSHING, this.onBufferFlushing, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].LEVEL_UPDATED, this.onLevelUpdated, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].FRAG_PARSED, this.onFragParsed, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].FRAG_CHANGED, this.onFragChanged, this);
  };

  _proto.unregisterListeners = function unregisterListeners() {
    var hls = this.hls;
    hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].MEDIA_ATTACHING, this.onMediaAttaching, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].MEDIA_DETACHING, this.onMediaDetaching, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].MANIFEST_PARSED, this.onManifestParsed, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].BUFFER_RESET, this.onBufferReset, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].BUFFER_APPENDING, this.onBufferAppending, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].BUFFER_CODECS, this.onBufferCodecs, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].BUFFER_EOS, this.onBufferEos, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].BUFFER_FLUSHING, this.onBufferFlushing, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].LEVEL_UPDATED, this.onLevelUpdated, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].FRAG_PARSED, this.onFragParsed, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].FRAG_CHANGED, this.onFragChanged, this);
  };

  _proto._initSourceBuffer = function _initSourceBuffer() {
    this.sourceBuffer = {};
    this.operationQueue = new _buffer_operation_queue__WEBPACK_IMPORTED_MODULE_7__["default"](this.sourceBuffer);
    this.listeners = {
      audio: [],
      video: [],
      audiovideo: []
    };
  };

  _proto.onManifestParsed = function onManifestParsed(event, data) {
    // in case of alt audio 2 BUFFER_CODECS events will be triggered, one per stream controller
    // sourcebuffers will be created all at once when the expected nb of tracks will be reached
    // in case alt audio is not used, only one BUFFER_CODEC event will be fired from main stream controller
    // it will contain the expected nb of source buffers, no need to compute it
    var codecEvents = 2;

    if (data.audio && !data.video || !data.altAudio) {
      codecEvents = 1;
    }

    this.bufferCodecEventsExpected = this._bufferCodecEventsTotal = codecEvents;
    this.details = null;
    _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].log(this.bufferCodecEventsExpected + " bufferCodec event(s) expected");
  };

  _proto.onMediaAttaching = function onMediaAttaching(event, data) {
    var media = this.media = data.media;

    if (media && MediaSource) {
      var ms = this.mediaSource = new MediaSource(); // MediaSource listeners are arrow functions with a lexical scope, and do not need to be bound

      ms.addEventListener('sourceopen', this._onMediaSourceOpen);
      ms.addEventListener('sourceended', this._onMediaSourceEnded);
      ms.addEventListener('sourceclose', this._onMediaSourceClose); // link video and media Source

      media.src = self.URL.createObjectURL(ms); // cache the locally generated object url

      this._objectUrl = media.src;
    }
  };

  _proto.onMediaDetaching = function onMediaDetaching() {
    var media = this.media,
        mediaSource = this.mediaSource,
        _objectUrl = this._objectUrl;

    if (mediaSource) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].log('[buffer-controller]: media source detaching');

      if (mediaSource.readyState === 'open') {
        try {
          // endOfStream could trigger exception if any sourcebuffer is in updating state
          // we don't really care about checking sourcebuffer state here,
          // as we are anyway detaching the MediaSource
          // let's just avoid this exception to propagate
          mediaSource.endOfStream();
        } catch (err) {
          _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].warn("[buffer-controller]: onMediaDetaching: " + err.message + " while calling endOfStream");
        }
      } // Clean up the SourceBuffers by invoking onBufferReset


      this.onBufferReset();
      mediaSource.removeEventListener('sourceopen', this._onMediaSourceOpen);
      mediaSource.removeEventListener('sourceended', this._onMediaSourceEnded);
      mediaSource.removeEventListener('sourceclose', this._onMediaSourceClose); // Detach properly the MediaSource from the HTMLMediaElement as
      // suggested in https://github.com/w3c/media-source/issues/53.

      if (media) {
        if (_objectUrl) {
          self.URL.revokeObjectURL(_objectUrl);
        } // clean up video tag src only if it's our own url. some external libraries might
        // hijack the video tag and change its 'src' without destroying the Hls instance first


        if (media.src === _objectUrl) {
          media.removeAttribute('src');
          media.load();
        } else {
          _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].warn('[buffer-controller]: media.src was changed by a third party - skip cleanup');
        }
      }

      this.mediaSource = null;
      this.media = null;
      this._objectUrl = null;
      this.bufferCodecEventsExpected = this._bufferCodecEventsTotal;
      this.pendingTracks = {};
      this.tracks = {};
    }

    this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].MEDIA_DETACHED, undefined);
  };

  _proto.onBufferReset = function onBufferReset() {
    var _this2 = this;

    this.getSourceBufferTypes().forEach(function (type) {
      var sb = _this2.sourceBuffer[type];

      try {
        if (sb) {
          _this2.removeBufferListeners(type);

          if (_this2.mediaSource) {
            _this2.mediaSource.removeSourceBuffer(sb);
          } // Synchronously remove the SB from the map before the next call in order to prevent an async function from
          // accessing it


          _this2.sourceBuffer[type] = undefined;
        }
      } catch (err) {
        _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].warn("[buffer-controller]: Failed to reset the " + type + " buffer", err);
      }
    });

    this._initSourceBuffer();
  };

  _proto.onBufferCodecs = function onBufferCodecs(event, data) {
    var _this3 = this;

    var sourceBufferCount = this.getSourceBufferTypes().length;
    Object.keys(data).forEach(function (trackName) {
      if (sourceBufferCount) {
        // check if SourceBuffer codec needs to change
        var track = _this3.tracks[trackName];

        if (track && typeof track.buffer.changeType === 'function') {
          var _data$trackName = data[trackName],
              codec = _data$trackName.codec,
              levelCodec = _data$trackName.levelCodec,
              container = _data$trackName.container;
          var currentCodec = (track.levelCodec || track.codec).replace(VIDEO_CODEC_PROFILE_REPACE, '$1');
          var nextCodec = (levelCodec || codec).replace(VIDEO_CODEC_PROFILE_REPACE, '$1');

          if (currentCodec !== nextCodec) {
            var mimeType = container + ";codecs=" + (levelCodec || codec);

            _this3.appendChangeType(trackName, mimeType);
          }
        }
      } else {
        // if source buffer(s) not created yet, appended buffer tracks in this.pendingTracks
        _this3.pendingTracks[trackName] = data[trackName];
      }
    }); // if sourcebuffers already created, do nothing ...

    if (sourceBufferCount) {
      return;
    }

    this.bufferCodecEventsExpected = Math.max(this.bufferCodecEventsExpected - 1, 0);

    if (this.mediaSource && this.mediaSource.readyState === 'open') {
      this.checkPendingTracks();
    }
  };

  _proto.appendChangeType = function appendChangeType(type, mimeType) {
    var _this4 = this;

    var operationQueue = this.operationQueue;
    var operation = {
      execute: function execute() {
        var sb = _this4.sourceBuffer[type];

        if (sb) {
          _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].log("[buffer-controller]: changing " + type + " sourceBuffer type to " + mimeType);
          sb.changeType(mimeType);
        }

        operationQueue.shiftAndExecuteNext(type);
      },
      onStart: function onStart() {},
      onComplete: function onComplete() {},
      onError: function onError(e) {
        _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].warn("[buffer-controller]: Failed to change " + type + " SourceBuffer type", e);
      }
    };
    operationQueue.append(operation, type);
  };

  _proto.onBufferAppending = function onBufferAppending(event, eventData) {
    var _this5 = this;

    var hls = this.hls,
        operationQueue = this.operationQueue,
        tracks = this.tracks;
    var data = eventData.data,
        type = eventData.type,
        frag = eventData.frag,
        part = eventData.part,
        chunkMeta = eventData.chunkMeta;
    var chunkStats = chunkMeta.buffering[type];
    var bufferAppendingStart = self.performance.now();
    chunkStats.start = bufferAppendingStart;
    var fragBuffering = frag.stats.buffering;
    var partBuffering = part ? part.stats.buffering : null;

    if (fragBuffering.start === 0) {
      fragBuffering.start = bufferAppendingStart;
    }

    if (partBuffering && partBuffering.start === 0) {
      partBuffering.start = bufferAppendingStart;
    } // TODO: Only update timestampOffset when audio/mpeg fragment or part is not contiguous with previously appended
    // Adjusting `SourceBuffer.timestampOffset` (desired point in the timeline where the next frames should be appended)
    // in Chrome browser when we detect MPEG audio container and time delta between level PTS and `SourceBuffer.timestampOffset`
    // is greater than 100ms (this is enough to handle seek for VOD or level change for LIVE videos).
    // More info here: https://github.com/video-dev/hls.js/issues/332#issuecomment-257986486


    var audioTrack = tracks.audio;
    var checkTimestampOffset = type === 'audio' && chunkMeta.id === 1 && (audioTrack === null || audioTrack === void 0 ? void 0 : audioTrack.container) === 'audio/mpeg';
    var operation = {
      execute: function execute() {
        chunkStats.executeStart = self.performance.now();

        if (checkTimestampOffset) {
          var sb = _this5.sourceBuffer[type];

          if (sb) {
            var delta = frag.start - sb.timestampOffset;

            if (Math.abs(delta) >= 0.1) {
              _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].log("[buffer-controller]: Updating audio SourceBuffer timestampOffset to " + frag.start + " (delta: " + delta + ") sn: " + frag.sn + ")");
              sb.timestampOffset = frag.start;
            }
          }
        }

        _this5.appendExecutor(data, type);
      },
      onStart: function onStart() {// logger.debug(`[buffer-controller]: ${type} SourceBuffer updatestart`);
      },
      onComplete: function onComplete() {
        // logger.debug(`[buffer-controller]: ${type} SourceBuffer updateend`);
        var end = self.performance.now();
        chunkStats.executeEnd = chunkStats.end = end;

        if (fragBuffering.first === 0) {
          fragBuffering.first = end;
        }

        if (partBuffering && partBuffering.first === 0) {
          partBuffering.first = end;
        }

        var sourceBuffer = _this5.sourceBuffer;
        var timeRanges = {};

        for (var _type in sourceBuffer) {
          timeRanges[_type] = _utils_buffer_helper__WEBPACK_IMPORTED_MODULE_4__["BufferHelper"].getBuffered(sourceBuffer[_type]);
        }

        _this5.appendError = 0;

        _this5.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].BUFFER_APPENDED, {
          type: type,
          frag: frag,
          part: part,
          chunkMeta: chunkMeta,
          parent: frag.type,
          timeRanges: timeRanges
        });
      },
      onError: function onError(err) {
        // in case any error occured while appending, put back segment in segments table
        _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].error("[buffer-controller]: Error encountered while trying to append to the " + type + " SourceBuffer", err);
        var event = {
          type: _errors__WEBPACK_IMPORTED_MODULE_3__["ErrorTypes"].MEDIA_ERROR,
          parent: frag.type,
          details: _errors__WEBPACK_IMPORTED_MODULE_3__["ErrorDetails"].BUFFER_APPEND_ERROR,
          err: err,
          fatal: false
        };

        if (err.code === DOMException.QUOTA_EXCEEDED_ERR) {
          // QuotaExceededError: http://www.w3.org/TR/html5/infrastructure.html#quotaexceedederror
          // let's stop appending any segments, and report BUFFER_FULL_ERROR error
          event.details = _errors__WEBPACK_IMPORTED_MODULE_3__["ErrorDetails"].BUFFER_FULL_ERROR;
        } else {
          _this5.appendError++;
          event.details = _errors__WEBPACK_IMPORTED_MODULE_3__["ErrorDetails"].BUFFER_APPEND_ERROR;
          /* with UHD content, we could get loop of quota exceeded error until
            browser is able to evict some data from sourcebuffer. Retrying can help recover.
          */

          if (_this5.appendError > hls.config.appendErrorMaxRetry) {
            _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].error("[buffer-controller]: Failed " + hls.config.appendErrorMaxRetry + " times to append segment in sourceBuffer");
            event.fatal = true;
          }
        }

        hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].ERROR, event);
      }
    };
    operationQueue.append(operation, type);
  };

  _proto.onBufferFlushing = function onBufferFlushing(event, data) {
    var _this6 = this;

    var operationQueue = this.operationQueue;

    var flushOperation = function flushOperation(type) {
      return {
        execute: _this6.removeExecutor.bind(_this6, type, data.startOffset, data.endOffset),
        onStart: function onStart() {// logger.debug(`[buffer-controller]: Started flushing ${data.startOffset} -> ${data.endOffset} for ${type} Source Buffer`);
        },
        onComplete: function onComplete() {
          // logger.debug(`[buffer-controller]: Finished flushing ${data.startOffset} -> ${data.endOffset} for ${type} Source Buffer`);
          _this6.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].BUFFER_FLUSHED, {
            type: type
          });
        },
        onError: function onError(e) {
          _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].warn("[buffer-controller]: Failed to remove from " + type + " SourceBuffer", e);
        }
      };
    };

    if (data.type) {
      operationQueue.append(flushOperation(data.type), data.type);
    } else {
      this.getSourceBufferTypes().forEach(function (type) {
        operationQueue.append(flushOperation(type), type);
      });
    }
  };

  _proto.onFragParsed = function onFragParsed(event, data) {
    var _this7 = this;

    var frag = data.frag,
        part = data.part;
    var buffersAppendedTo = [];
    var elementaryStreams = part ? part.elementaryStreams : frag.elementaryStreams;

    if (elementaryStreams[_loader_fragment__WEBPACK_IMPORTED_MODULE_6__["ElementaryStreamTypes"].AUDIOVIDEO]) {
      buffersAppendedTo.push('audiovideo');
    } else {
      if (elementaryStreams[_loader_fragment__WEBPACK_IMPORTED_MODULE_6__["ElementaryStreamTypes"].AUDIO]) {
        buffersAppendedTo.push('audio');
      }

      if (elementaryStreams[_loader_fragment__WEBPACK_IMPORTED_MODULE_6__["ElementaryStreamTypes"].VIDEO]) {
        buffersAppendedTo.push('video');
      }
    }

    var onUnblocked = function onUnblocked() {
      var now = self.performance.now();
      frag.stats.buffering.end = now;

      if (part) {
        part.stats.buffering.end = now;
      }

      var stats = part ? part.stats : frag.stats;

      _this7.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].FRAG_BUFFERED, {
        frag: frag,
        part: part,
        stats: stats,
        id: frag.type
      });
    };

    if (buffersAppendedTo.length === 0) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].warn("Fragments must have at least one ElementaryStreamType set. type: " + frag.type + " level: " + frag.level + " sn: " + frag.sn);
    }

    this.blockBuffers(onUnblocked, buffersAppendedTo);
  };

  _proto.onFragChanged = function onFragChanged(event, data) {
    this.flushBackBuffer();
  } // on BUFFER_EOS mark matching sourcebuffer(s) as ended and trigger checkEos()
  // an undefined data.type will mark all buffers as EOS.
  ;

  _proto.onBufferEos = function onBufferEos(event, data) {
    var _this8 = this;

    var ended = this.getSourceBufferTypes().reduce(function (acc, type) {
      var sb = _this8.sourceBuffer[type];

      if (!data.type || data.type === type) {
        if (sb && !sb.ended) {
          sb.ended = true;
          _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].log("[buffer-controller]: " + type + " sourceBuffer now EOS");
        }
      }

      return acc && !!(!sb || sb.ended);
    }, true);

    if (ended) {
      this.blockBuffers(function () {
        var mediaSource = _this8.mediaSource;

        if (!mediaSource || mediaSource.readyState !== 'open') {
          return;
        } // Allow this to throw and be caught by the enqueueing function


        mediaSource.endOfStream();
      });
    }
  };

  _proto.onLevelUpdated = function onLevelUpdated(event, _ref) {
    var details = _ref.details;

    if (!details.fragments.length) {
      return;
    }

    this.details = details;

    if (this.getSourceBufferTypes().length) {
      this.blockBuffers(this.updateMediaElementDuration.bind(this));
    } else {
      this.updateMediaElementDuration();
    }
  };

  _proto.flushBackBuffer = function flushBackBuffer() {
    var hls = this.hls,
        details = this.details,
        media = this.media,
        sourceBuffer = this.sourceBuffer;

    if (!media || details === null) {
      return;
    }

    var sourceBufferTypes = this.getSourceBufferTypes();

    if (!sourceBufferTypes.length) {
      return;
    } // Support for deprecated liveBackBufferLength


    var backBufferLength = details.live && hls.config.liveBackBufferLength !== null ? hls.config.liveBackBufferLength : hls.config.backBufferLength;

    if (!Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(backBufferLength) || backBufferLength < 0) {
      return;
    }

    var currentTime = media.currentTime;
    var targetDuration = details.levelTargetDuration;
    var maxBackBufferLength = Math.max(backBufferLength, targetDuration);
    var targetBackBufferPosition = Math.floor(currentTime / targetDuration) * targetDuration - maxBackBufferLength;
    sourceBufferTypes.forEach(function (type) {
      var sb = sourceBuffer[type];

      if (sb) {
        var buffered = _utils_buffer_helper__WEBPACK_IMPORTED_MODULE_4__["BufferHelper"].getBuffered(sb); // when target buffer start exceeds actual buffer start

        if (buffered.length > 0 && targetBackBufferPosition > buffered.start(0)) {
          hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].BACK_BUFFER_REACHED, {
            bufferEnd: targetBackBufferPosition
          }); // Support for deprecated event:

          if (details.live) {
            hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].LIVE_BACK_BUFFER_REACHED, {
              bufferEnd: targetBackBufferPosition
            });
          }

          hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].BUFFER_FLUSHING, {
            startOffset: 0,
            endOffset: targetBackBufferPosition,
            type: type
          });
        }
      }
    });
  }
  /**
   * Update Media Source duration to current level duration or override to Infinity if configuration parameter
   * 'liveDurationInfinity` is set to `true`
   * More details: https://github.com/video-dev/hls.js/issues/355
   */
  ;

  _proto.updateMediaElementDuration = function updateMediaElementDuration() {
    if (!this.details || !this.media || !this.mediaSource || this.mediaSource.readyState !== 'open') {
      return;
    }

    var details = this.details,
        hls = this.hls,
        media = this.media,
        mediaSource = this.mediaSource;
    var levelDuration = details.fragments[0].start + details.totalduration;
    var mediaDuration = media.duration;
    var msDuration = Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(mediaSource.duration) ? mediaSource.duration : 0;

    if (details.live && hls.config.liveDurationInfinity) {
      // Override duration to Infinity
      _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].log('[buffer-controller]: Media Source duration is set to Infinity');
      mediaSource.duration = Infinity;
      this.updateSeekableRange(details);
    } else if (levelDuration > msDuration && levelDuration > mediaDuration || !Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(mediaDuration)) {
      // levelDuration was the last value we set.
      // not using mediaSource.duration as the browser may tweak this value
      // only update Media Source duration if its value increase, this is to avoid
      // flushing already buffered portion when switching between quality level
      _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].log("[buffer-controller]: Updating Media Source duration to " + levelDuration.toFixed(3));
      mediaSource.duration = levelDuration;
    }
  };

  _proto.updateSeekableRange = function updateSeekableRange(levelDetails) {
    var mediaSource = this.mediaSource;
    var fragments = levelDetails.fragments;
    var len = fragments.length;

    if (len && levelDetails.live && mediaSource !== null && mediaSource !== void 0 && mediaSource.setLiveSeekableRange) {
      var start = Math.max(0, fragments[0].start);
      var end = Math.max(start, start + levelDetails.totalduration);
      mediaSource.setLiveSeekableRange(start, end);
    }
  };

  _proto.checkPendingTracks = function checkPendingTracks() {
    var bufferCodecEventsExpected = this.bufferCodecEventsExpected,
        operationQueue = this.operationQueue,
        pendingTracks = this.pendingTracks; // Check if we've received all of the expected bufferCodec events. When none remain, create all the sourceBuffers at once.
    // This is important because the MSE spec allows implementations to throw QuotaExceededErrors if creating new sourceBuffers after
    // data has been appended to existing ones.
    // 2 tracks is the max (one for audio, one for video). If we've reach this max go ahead and create the buffers.

    var pendingTracksCount = Object.keys(pendingTracks).length;

    if (pendingTracksCount && !bufferCodecEventsExpected || pendingTracksCount === 2) {
      // ok, let's create them now !
      this.createSourceBuffers(pendingTracks);
      this.pendingTracks = {}; // append any pending segments now !

      var buffers = this.getSourceBufferTypes();

      if (buffers.length === 0) {
        this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].ERROR, {
          type: _errors__WEBPACK_IMPORTED_MODULE_3__["ErrorTypes"].MEDIA_ERROR,
          details: _errors__WEBPACK_IMPORTED_MODULE_3__["ErrorDetails"].BUFFER_INCOMPATIBLE_CODECS_ERROR,
          fatal: true,
          reason: 'could not create source buffer for media codec(s)'
        });
        return;
      }

      buffers.forEach(function (type) {
        operationQueue.executeNext(type);
      });
    }
  };

  _proto.createSourceBuffers = function createSourceBuffers(tracks) {
    var sourceBuffer = this.sourceBuffer,
        mediaSource = this.mediaSource;

    if (!mediaSource) {
      throw Error('createSourceBuffers called when mediaSource was null');
    }

    var tracksCreated = 0;

    for (var trackName in tracks) {
      if (!sourceBuffer[trackName]) {
        var track = tracks[trackName];

        if (!track) {
          throw Error("source buffer exists for track " + trackName + ", however track does not");
        } // use levelCodec as first priority


        var codec = track.levelCodec || track.codec;
        var mimeType = track.container + ";codecs=" + codec;
        _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].log("[buffer-controller]: creating sourceBuffer(" + mimeType + ")");

        try {
          var sb = sourceBuffer[trackName] = mediaSource.addSourceBuffer(mimeType);
          var sbName = trackName;
          this.addBufferListener(sbName, 'updatestart', this._onSBUpdateStart);
          this.addBufferListener(sbName, 'updateend', this._onSBUpdateEnd);
          this.addBufferListener(sbName, 'error', this._onSBUpdateError);
          this.tracks[trackName] = {
            buffer: sb,
            codec: codec,
            container: track.container,
            levelCodec: track.levelCodec,
            id: track.id
          };
          tracksCreated++;
        } catch (err) {
          _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].error("[buffer-controller]: error while trying to add sourceBuffer: " + err.message);
          this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].ERROR, {
            type: _errors__WEBPACK_IMPORTED_MODULE_3__["ErrorTypes"].MEDIA_ERROR,
            details: _errors__WEBPACK_IMPORTED_MODULE_3__["ErrorDetails"].BUFFER_ADD_CODEC_ERROR,
            fatal: false,
            error: err,
            mimeType: mimeType
          });
        }
      }
    }

    if (tracksCreated) {
      this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].BUFFER_CREATED, {
        tracks: this.tracks
      });
    }
  } // Keep as arrow functions so that we can directly reference these functions directly as event listeners
  ;

  _proto._onSBUpdateStart = function _onSBUpdateStart(type) {
    var operationQueue = this.operationQueue;
    var operation = operationQueue.current(type);
    operation.onStart();
  };

  _proto._onSBUpdateEnd = function _onSBUpdateEnd(type) {
    var operationQueue = this.operationQueue;
    var operation = operationQueue.current(type);
    operation.onComplete();
    operationQueue.shiftAndExecuteNext(type);
  };

  _proto._onSBUpdateError = function _onSBUpdateError(type, event) {
    _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].error("[buffer-controller]: " + type + " SourceBuffer error", event); // according to http://www.w3.org/TR/media-source/#sourcebuffer-append-error
    // SourceBuffer errors are not necessarily fatal; if so, the HTMLMediaElement will fire an error event

    this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].ERROR, {
      type: _errors__WEBPACK_IMPORTED_MODULE_3__["ErrorTypes"].MEDIA_ERROR,
      details: _errors__WEBPACK_IMPORTED_MODULE_3__["ErrorDetails"].BUFFER_APPENDING_ERROR,
      fatal: false
    }); // updateend is always fired after error, so we'll allow that to shift the current operation off of the queue

    var operation = this.operationQueue.current(type);

    if (operation) {
      operation.onError(event);
    }
  } // This method must result in an updateend event; if remove is not called, _onSBUpdateEnd must be called manually
  ;

  _proto.removeExecutor = function removeExecutor(type, startOffset, endOffset) {
    var media = this.media,
        mediaSource = this.mediaSource,
        operationQueue = this.operationQueue,
        sourceBuffer = this.sourceBuffer;
    var sb = sourceBuffer[type];

    if (!media || !mediaSource || !sb) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].warn("[buffer-controller]: Attempting to remove from the " + type + " SourceBuffer, but it does not exist");
      operationQueue.shiftAndExecuteNext(type);
      return;
    }

    var mediaDuration = Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(media.duration) ? media.duration : Infinity;
    var msDuration = Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(mediaSource.duration) ? mediaSource.duration : Infinity;
    var removeStart = Math.max(0, startOffset);
    var removeEnd = Math.min(endOffset, mediaDuration, msDuration);

    if (removeEnd > removeStart) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].log("[buffer-controller]: Removing [" + removeStart + "," + removeEnd + "] from the " + type + " SourceBuffer");
      console.assert(!sb.updating, type + " sourceBuffer must not be updating");
      sb.remove(removeStart, removeEnd);
    } else {
      // Cycle the queue
      operationQueue.shiftAndExecuteNext(type);
    }
  } // This method must result in an updateend event; if append is not called, _onSBUpdateEnd must be called manually
  ;

  _proto.appendExecutor = function appendExecutor(data, type) {
    var operationQueue = this.operationQueue,
        sourceBuffer = this.sourceBuffer;
    var sb = sourceBuffer[type];

    if (!sb) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].warn("[buffer-controller]: Attempting to append to the " + type + " SourceBuffer, but it does not exist");
      operationQueue.shiftAndExecuteNext(type);
      return;
    }

    sb.ended = false;
    console.assert(!sb.updating, type + " sourceBuffer must not be updating");
    sb.appendBuffer(data);
  } // Enqueues an operation to each SourceBuffer queue which, upon execution, resolves a promise. When all promises
  // resolve, the onUnblocked function is executed. Functions calling this method do not need to unblock the queue
  // upon completion, since we already do it here
  ;

  _proto.blockBuffers = function blockBuffers(onUnblocked, buffers) {
    var _this9 = this;

    if (buffers === void 0) {
      buffers = this.getSourceBufferTypes();
    }

    if (!buffers.length) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].log('[buffer-controller]: Blocking operation requested, but no SourceBuffers exist');
      Promise.resolve(onUnblocked);
      return;
    }

    var operationQueue = this.operationQueue; // logger.debug(`[buffer-controller]: Blocking ${buffers} SourceBuffer`);

    var blockingOperations = buffers.map(function (type) {
      return operationQueue.appendBlocker(type);
    });
    Promise.all(blockingOperations).then(function () {
      // logger.debug(`[buffer-controller]: Blocking operation resolved; unblocking ${buffers} SourceBuffer`);
      onUnblocked();
      buffers.forEach(function (type) {
        var sb = _this9.sourceBuffer[type]; // Only cycle the queue if the SB is not updating. There's a bug in Chrome which sets the SB updating flag to
        // true when changing the MediaSource duration (https://bugs.chromium.org/p/chromium/issues/detail?id=959359&can=2&q=mediasource%20duration)
        // While this is a workaround, it's probably useful to have around

        if (!sb || !sb.updating) {
          operationQueue.shiftAndExecuteNext(type);
        }
      });
    });
  };

  _proto.getSourceBufferTypes = function getSourceBufferTypes() {
    return Object.keys(this.sourceBuffer);
  };

  _proto.addBufferListener = function addBufferListener(type, event, fn) {
    var buffer = this.sourceBuffer[type];

    if (!buffer) {
      return;
    }

    var listener = fn.bind(this, type);
    this.listeners[type].push({
      event: event,
      listener: listener
    });
    buffer.addEventListener(event, listener);
  };

  _proto.removeBufferListeners = function removeBufferListeners(type) {
    var buffer = this.sourceBuffer[type];

    if (!buffer) {
      return;
    }

    this.listeners[type].forEach(function (l) {
      buffer.removeEventListener(l.event, l.listener);
    });
  };

  return BufferController;
}();



/***/ }),

/***/ "./src/controller/buffer-operation-queue.ts":
/*!**************************************************!*\
  !*** ./src/controller/buffer-operation-queue.ts ***!
  \**************************************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "default", function() { return BufferOperationQueue; });
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../utils/logger */ "./src/utils/logger.ts");


var BufferOperationQueue = /*#__PURE__*/function () {
  function BufferOperationQueue(sourceBufferReference) {
    this.buffers = void 0;
    this.queues = {
      video: [],
      audio: [],
      audiovideo: []
    };
    this.buffers = sourceBufferReference;
  }

  var _proto = BufferOperationQueue.prototype;

  _proto.append = function append(operation, type) {
    var queue = this.queues[type];
    queue.push(operation);

    if (queue.length === 1 && this.buffers[type]) {
      this.executeNext(type);
    }
  };

  _proto.insertAbort = function insertAbort(operation, type) {
    var queue = this.queues[type];
    queue.unshift(operation);
    this.executeNext(type);
  };

  _proto.appendBlocker = function appendBlocker(type) {
    var execute;
    var promise = new Promise(function (resolve) {
      execute = resolve;
    });
    var operation = {
      execute: execute,
      onStart: function onStart() {},
      onComplete: function onComplete() {},
      onError: function onError() {}
    };
    this.append(operation, type);
    return promise;
  };

  _proto.executeNext = function executeNext(type) {
    var buffers = this.buffers,
        queues = this.queues;
    var sb = buffers[type];
    var queue = queues[type];

    if (queue.length) {
      var operation = queue[0];

      try {
        // Operations are expected to result in an 'updateend' event being fired. If not, the queue will lock. Operations
        // which do not end with this event must call _onSBUpdateEnd manually
        operation.execute();
      } catch (e) {
        _utils_logger__WEBPACK_IMPORTED_MODULE_0__["logger"].warn('[buffer-operation-queue]: Unhandled exception executing the current operation');
        operation.onError(e); // Only shift the current operation off, otherwise the updateend handler will do this for us

        if (!sb || !sb.updating) {
          queue.shift();
          this.executeNext(type);
        }
      }
    }
  };

  _proto.shiftAndExecuteNext = function shiftAndExecuteNext(type) {
    this.queues[type].shift();
    this.executeNext(type);
  };

  _proto.current = function current(type) {
    return this.queues[type][0];
  };

  return BufferOperationQueue;
}();



/***/ }),

/***/ "./src/controller/cap-level-controller.ts":
/*!************************************************!*\
  !*** ./src/controller/cap-level-controller.ts ***!
  \************************************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony import */ var _events__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../events */ "./src/events.ts");
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

/*
 * cap stream level to media size dimension controller
 */


var CapLevelController = /*#__PURE__*/function () {
  function CapLevelController(hls) {
    this.autoLevelCapping = void 0;
    this.firstLevel = void 0;
    this.media = void 0;
    this.restrictedLevels = void 0;
    this.timer = void 0;
    this.hls = void 0;
    this.streamController = void 0;
    this.clientRect = void 0;
    this.hls = hls;
    this.autoLevelCapping = Number.POSITIVE_INFINITY;
    this.firstLevel = -1;
    this.media = null;
    this.restrictedLevels = [];
    this.timer = undefined;
    this.clientRect = null;
    this.registerListeners();
  }

  var _proto = CapLevelController.prototype;

  _proto.setStreamController = function setStreamController(streamController) {
    this.streamController = streamController;
  };

  _proto.destroy = function destroy() {
    this.unregisterListener();

    if (this.hls.config.capLevelToPlayerSize) {
      this.stopCapping();
    }

    this.media = null;
    this.clientRect = null; // @ts-ignore

    this.hls = this.streamController = null;
  };

  _proto.registerListeners = function registerListeners() {
    var hls = this.hls;
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].FPS_DROP_LEVEL_CAPPING, this.onFpsDropLevelCapping, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MEDIA_ATTACHING, this.onMediaAttaching, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MANIFEST_PARSED, this.onManifestParsed, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].BUFFER_CODECS, this.onBufferCodecs, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MEDIA_DETACHING, this.onMediaDetaching, this);
  };

  _proto.unregisterListener = function unregisterListener() {
    var hls = this.hls;
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].FPS_DROP_LEVEL_CAPPING, this.onFpsDropLevelCapping, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MEDIA_ATTACHING, this.onMediaAttaching, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MANIFEST_PARSED, this.onManifestParsed, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].BUFFER_CODECS, this.onBufferCodecs, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MEDIA_DETACHING, this.onMediaDetaching, this);
  };

  _proto.onFpsDropLevelCapping = function onFpsDropLevelCapping(event, data) {
    // Don't add a restricted level more than once
    if (CapLevelController.isLevelAllowed(data.droppedLevel, this.restrictedLevels)) {
      this.restrictedLevels.push(data.droppedLevel);
    }
  };

  _proto.onMediaAttaching = function onMediaAttaching(event, data) {
    this.media = data.media instanceof HTMLVideoElement ? data.media : null;
  };

  _proto.onManifestParsed = function onManifestParsed(event, data) {
    var hls = this.hls;
    this.restrictedLevels = [];
    this.firstLevel = data.firstLevel;

    if (hls.config.capLevelToPlayerSize && data.video) {
      // Start capping immediately if the manifest has signaled video codecs
      this.startCapping();
    }
  } // Only activate capping when playing a video stream; otherwise, multi-bitrate audio-only streams will be restricted
  // to the first level
  ;

  _proto.onBufferCodecs = function onBufferCodecs(event, data) {
    var hls = this.hls;

    if (hls.config.capLevelToPlayerSize && data.video) {
      // If the manifest did not signal a video codec capping has been deferred until we're certain video is present
      this.startCapping();
    }
  };

  _proto.onMediaDetaching = function onMediaDetaching() {
    this.stopCapping();
  };

  _proto.detectPlayerSize = function detectPlayerSize() {
    if (this.media && this.mediaHeight > 0 && this.mediaWidth > 0) {
      var levels = this.hls.levels;

      if (levels.length) {
        var hls = this.hls;
        hls.autoLevelCapping = this.getMaxLevel(levels.length - 1);

        if (hls.autoLevelCapping > this.autoLevelCapping && this.streamController) {
          // if auto level capping has a higher value for the previous one, flush the buffer using nextLevelSwitch
          // usually happen when the user go to the fullscreen mode.
          this.streamController.nextLevelSwitch();
        }

        this.autoLevelCapping = hls.autoLevelCapping;
      }
    }
  }
  /*
   * returns level should be the one with the dimensions equal or greater than the media (player) dimensions (so the video will be downscaled)
   */
  ;

  _proto.getMaxLevel = function getMaxLevel(capLevelIndex) {
    var _this = this;

    var levels = this.hls.levels;

    if (!levels.length) {
      return -1;
    }

    var validLevels = levels.filter(function (level, index) {
      return CapLevelController.isLevelAllowed(index, _this.restrictedLevels) && index <= capLevelIndex;
    });
    this.clientRect = null;
    return CapLevelController.getMaxLevelByMediaSize(validLevels, this.mediaWidth, this.mediaHeight);
  };

  _proto.startCapping = function startCapping() {
    if (this.timer) {
      // Don't reset capping if started twice; this can happen if the manifest signals a video codec
      return;
    }

    this.autoLevelCapping = Number.POSITIVE_INFINITY;
    this.hls.firstLevel = this.getMaxLevel(this.firstLevel);
    self.clearInterval(this.timer);
    this.timer = self.setInterval(this.detectPlayerSize.bind(this), 1000);
    this.detectPlayerSize();
  };

  _proto.stopCapping = function stopCapping() {
    this.restrictedLevels = [];
    this.firstLevel = -1;
    this.autoLevelCapping = Number.POSITIVE_INFINITY;

    if (this.timer) {
      self.clearInterval(this.timer);
      this.timer = undefined;
    }
  };

  _proto.getDimensions = function getDimensions() {
    if (this.clientRect) {
      return this.clientRect;
    }

    var media = this.media;
    var boundsRect = {
      width: 0,
      height: 0
    };

    if (media) {
      var clientRect = media.getBoundingClientRect();
      boundsRect.width = clientRect.width;
      boundsRect.height = clientRect.height;

      if (!boundsRect.width && !boundsRect.height) {
        // When the media element has no width or height (equivalent to not being in the DOM),
        // then use its width and height attributes (media.width, media.height)
        boundsRect.width = clientRect.right - clientRect.left || media.width || 0;
        boundsRect.height = clientRect.bottom - clientRect.top || media.height || 0;
      }
    }

    this.clientRect = boundsRect;
    return boundsRect;
  };

  CapLevelController.isLevelAllowed = function isLevelAllowed(level, restrictedLevels) {
    if (restrictedLevels === void 0) {
      restrictedLevels = [];
    }

    return restrictedLevels.indexOf(level) === -1;
  };

  CapLevelController.getMaxLevelByMediaSize = function getMaxLevelByMediaSize(levels, width, height) {
    if (!levels || !levels.length) {
      return -1;
    } // Levels can have the same dimensions but differing bandwidths - since levels are ordered, we can look to the next
    // to determine whether we've chosen the greatest bandwidth for the media's dimensions


    var atGreatestBandiwdth = function atGreatestBandiwdth(curLevel, nextLevel) {
      if (!nextLevel) {
        return true;
      }

      return curLevel.width !== nextLevel.width || curLevel.height !== nextLevel.height;
    }; // If we run through the loop without breaking, the media's dimensions are greater than every level, so default to
    // the max level


    var maxLevelIndex = levels.length - 1;

    for (var i = 0; i < levels.length; i += 1) {
      var level = levels[i];

      if ((level.width >= width || level.height >= height) && atGreatestBandiwdth(level, levels[i + 1])) {
        maxLevelIndex = i;
        break;
      }
    }

    return maxLevelIndex;
  };

  _createClass(CapLevelController, [{
    key: "mediaWidth",
    get: function get() {
      return this.getDimensions().width * CapLevelController.contentScaleFactor;
    }
  }, {
    key: "mediaHeight",
    get: function get() {
      return this.getDimensions().height * CapLevelController.contentScaleFactor;
    }
  }], [{
    key: "contentScaleFactor",
    get: function get() {
      var pixelRatio = 1;

      try {
        pixelRatio = self.devicePixelRatio;
      } catch (e) {
        /* no-op */
      }

      return pixelRatio;
    }
  }]);

  return CapLevelController;
}();

/* harmony default export */ __webpack_exports__["default"] = (CapLevelController);

/***/ }),

/***/ "./src/controller/cmcd-controller.ts":
/*!*******************************************!*\
  !*** ./src/controller/cmcd-controller.ts ***!
  \*******************************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "default", function() { return CMCDController; });
/* harmony import */ var _events__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../events */ "./src/events.ts");
/* harmony import */ var _types_cmcd__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../types/cmcd */ "./src/types/cmcd.ts");
/* harmony import */ var _utils_buffer_helper__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../utils/buffer-helper */ "./src/utils/buffer-helper.ts");
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../utils/logger */ "./src/utils/logger.ts");
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

function _createForOfIteratorHelperLoose(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (it) return (it = it.call(o)).next.bind(it); if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; return function () { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }





/**
 * Controller to deal with Common Media Client Data (CMCD)
 * @see https://cdn.cta.tech/cta/media/media/resources/standards/pdfs/cta-5004-final.pdf
 */

var CMCDController = /*#__PURE__*/function () {
  // eslint-disable-line no-restricted-globals
  // eslint-disable-line no-restricted-globals
  function CMCDController(hls) {
    var _this = this;

    this.hls = void 0;
    this.config = void 0;
    this.media = void 0;
    this.sid = void 0;
    this.cid = void 0;
    this.useHeaders = false;
    this.initialized = false;
    this.starved = false;
    this.buffering = true;
    this.audioBuffer = void 0;
    this.videoBuffer = void 0;

    this.onWaiting = function () {
      if (_this.initialized) {
        _this.starved = true;
      }

      _this.buffering = true;
    };

    this.onPlaying = function () {
      if (!_this.initialized) {
        _this.initialized = true;
      }

      _this.buffering = false;
    };

    this.applyPlaylistData = function (context) {
      try {
        _this.apply(context, {
          ot: _types_cmcd__WEBPACK_IMPORTED_MODULE_1__["CMCDObjectType"].MANIFEST,
          su: !_this.initialized
        });
      } catch (error) {
        _utils_logger__WEBPACK_IMPORTED_MODULE_3__["logger"].warn('Could not generate manifest CMCD data.', error);
      }
    };

    this.applyFragmentData = function (context) {
      try {
        var fragment = context.frag;
        var level = _this.hls.levels[fragment.level];

        var ot = _this.getObjectType(fragment);

        var data = {
          d: fragment.duration * 1000,
          ot: ot
        };

        if (ot === _types_cmcd__WEBPACK_IMPORTED_MODULE_1__["CMCDObjectType"].VIDEO || ot === _types_cmcd__WEBPACK_IMPORTED_MODULE_1__["CMCDObjectType"].AUDIO || ot == _types_cmcd__WEBPACK_IMPORTED_MODULE_1__["CMCDObjectType"].MUXED) {
          data.br = level.bitrate / 1000;
          data.tb = _this.getTopBandwidth(ot);
          data.bl = _this.getBufferLength(ot);
        }

        _this.apply(context, data);
      } catch (error) {
        _utils_logger__WEBPACK_IMPORTED_MODULE_3__["logger"].warn('Could not generate segment CMCD data.', error);
      }
    };

    this.hls = hls;
    var config = this.config = hls.config;
    var cmcd = config.cmcd;

    if (cmcd != null) {
      config.pLoader = this.createPlaylistLoader();
      config.fLoader = this.createFragmentLoader();
      this.sid = cmcd.sessionId || CMCDController.uuid();
      this.cid = cmcd.contentId;
      this.useHeaders = cmcd.useHeaders === true;
      this.registerListeners();
    }
  }

  var _proto = CMCDController.prototype;

  _proto.registerListeners = function registerListeners() {
    var hls = this.hls;
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MEDIA_ATTACHED, this.onMediaAttached, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MEDIA_DETACHED, this.onMediaDetached, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].BUFFER_CREATED, this.onBufferCreated, this);
  };

  _proto.unregisterListeners = function unregisterListeners() {
    var hls = this.hls;
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MEDIA_ATTACHED, this.onMediaAttached, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MEDIA_DETACHED, this.onMediaDetached, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].BUFFER_CREATED, this.onBufferCreated, this);
    this.onMediaDetached();
  };

  _proto.destroy = function destroy() {
    this.unregisterListeners(); // @ts-ignore

    this.hls = this.config = this.audioBuffer = this.videoBuffer = null;
  };

  _proto.onMediaAttached = function onMediaAttached(event, data) {
    this.media = data.media;
    this.media.addEventListener('waiting', this.onWaiting);
    this.media.addEventListener('playing', this.onPlaying);
  };

  _proto.onMediaDetached = function onMediaDetached() {
    if (!this.media) {
      return;
    }

    this.media.removeEventListener('waiting', this.onWaiting);
    this.media.removeEventListener('playing', this.onPlaying); // @ts-ignore

    this.media = null;
  };

  _proto.onBufferCreated = function onBufferCreated(event, data) {
    var _data$tracks$audio, _data$tracks$video;

    this.audioBuffer = (_data$tracks$audio = data.tracks.audio) === null || _data$tracks$audio === void 0 ? void 0 : _data$tracks$audio.buffer;
    this.videoBuffer = (_data$tracks$video = data.tracks.video) === null || _data$tracks$video === void 0 ? void 0 : _data$tracks$video.buffer;
  };

  /**
   * Create baseline CMCD data
   */
  _proto.createData = function createData() {
    var _this$media;

    return {
      v: _types_cmcd__WEBPACK_IMPORTED_MODULE_1__["CMCDVersion"],
      sf: _types_cmcd__WEBPACK_IMPORTED_MODULE_1__["CMCDStreamingFormat"].HLS,
      sid: this.sid,
      cid: this.cid,
      pr: (_this$media = this.media) === null || _this$media === void 0 ? void 0 : _this$media.playbackRate,
      mtp: this.hls.bandwidthEstimate / 1000
    };
  }
  /**
   * Apply CMCD data to a request.
   */
  ;

  _proto.apply = function apply(context, data) {
    if (data === void 0) {
      data = {};
    }

    // apply baseline data
    _extends(data, this.createData());

    var isVideo = data.ot === _types_cmcd__WEBPACK_IMPORTED_MODULE_1__["CMCDObjectType"].INIT || data.ot === _types_cmcd__WEBPACK_IMPORTED_MODULE_1__["CMCDObjectType"].VIDEO || data.ot === _types_cmcd__WEBPACK_IMPORTED_MODULE_1__["CMCDObjectType"].MUXED;

    if (this.starved && isVideo) {
      data.bs = true;
      data.su = true;
      this.starved = false;
    }

    if (data.su == null) {
      data.su = this.buffering;
    } // TODO: Implement rtp, nrr, nor, dl


    if (this.useHeaders) {
      var headers = CMCDController.toHeaders(data);

      if (!Object.keys(headers).length) {
        return;
      }

      if (!context.headers) {
        context.headers = {};
      }

      _extends(context.headers, headers);
    } else {
      var query = CMCDController.toQuery(data);

      if (!query) {
        return;
      }

      context.url = CMCDController.appendQueryToUri(context.url, query);
    }
  }
  /**
   * Apply CMCD data to a manifest request.
   */
  ;

  /**
   * The CMCD object type.
   */
  _proto.getObjectType = function getObjectType(fragment) {
    var type = fragment.type;

    if (type === 'subtitle') {
      return _types_cmcd__WEBPACK_IMPORTED_MODULE_1__["CMCDObjectType"].TIMED_TEXT;
    }

    if (fragment.sn === 'initSegment') {
      return _types_cmcd__WEBPACK_IMPORTED_MODULE_1__["CMCDObjectType"].INIT;
    }

    if (type === 'audio') {
      return _types_cmcd__WEBPACK_IMPORTED_MODULE_1__["CMCDObjectType"].AUDIO;
    }

    if (type === 'main') {
      if (!this.hls.audioTracks.length) {
        return _types_cmcd__WEBPACK_IMPORTED_MODULE_1__["CMCDObjectType"].MUXED;
      }

      return _types_cmcd__WEBPACK_IMPORTED_MODULE_1__["CMCDObjectType"].VIDEO;
    }

    return undefined;
  }
  /**
   * Get the highest bitrate.
   */
  ;

  _proto.getTopBandwidth = function getTopBandwidth(type) {
    var bitrate = 0;
    var levels = type === _types_cmcd__WEBPACK_IMPORTED_MODULE_1__["CMCDObjectType"].AUDIO ? this.hls.audioTracks : this.hls.levels;

    for (var _iterator = _createForOfIteratorHelperLoose(levels), _step; !(_step = _iterator()).done;) {
      var level = _step.value;

      if (level.bitrate > bitrate) {
        bitrate = level.bitrate;
      }
    }

    return bitrate > 0 ? bitrate : NaN;
  }
  /**
   * Get the buffer length for a media type in milliseconds
   */
  ;

  _proto.getBufferLength = function getBufferLength(type) {
    var media = this.hls.media;
    var buffer = type === _types_cmcd__WEBPACK_IMPORTED_MODULE_1__["CMCDObjectType"].AUDIO ? this.audioBuffer : this.videoBuffer;

    if (!buffer || !media) {
      return NaN;
    }

    var info = _utils_buffer_helper__WEBPACK_IMPORTED_MODULE_2__["BufferHelper"].bufferInfo(buffer, media.currentTime, this.config.maxBufferHole);
    return info.len * 1000;
  }
  /**
   * Create a playlist loader
   */
  ;

  _proto.createPlaylistLoader = function createPlaylistLoader() {
    var pLoader = this.config.pLoader;
    var apply = this.applyPlaylistData;
    var Ctor = pLoader || this.config.loader;
    return /*#__PURE__*/function () {
      function CmcdPlaylistLoader(config) {
        this.loader = void 0;
        this.loader = new Ctor(config);
      }

      var _proto2 = CmcdPlaylistLoader.prototype;

      _proto2.destroy = function destroy() {
        this.loader.destroy();
      };

      _proto2.abort = function abort() {
        this.loader.abort();
      };

      _proto2.load = function load(context, config, callbacks) {
        apply(context);
        this.loader.load(context, config, callbacks);
      };

      _createClass(CmcdPlaylistLoader, [{
        key: "stats",
        get: function get() {
          return this.loader.stats;
        }
      }, {
        key: "context",
        get: function get() {
          return this.loader.context;
        }
      }]);

      return CmcdPlaylistLoader;
    }();
  }
  /**
   * Create a playlist loader
   */
  ;

  _proto.createFragmentLoader = function createFragmentLoader() {
    var fLoader = this.config.fLoader;
    var apply = this.applyFragmentData;
    var Ctor = fLoader || this.config.loader;
    return /*#__PURE__*/function () {
      function CmcdFragmentLoader(config) {
        this.loader = void 0;
        this.loader = new Ctor(config);
      }

      var _proto3 = CmcdFragmentLoader.prototype;

      _proto3.destroy = function destroy() {
        this.loader.destroy();
      };

      _proto3.abort = function abort() {
        this.loader.abort();
      };

      _proto3.load = function load(context, config, callbacks) {
        apply(context);
        this.loader.load(context, config, callbacks);
      };

      _createClass(CmcdFragmentLoader, [{
        key: "stats",
        get: function get() {
          return this.loader.stats;
        }
      }, {
        key: "context",
        get: function get() {
          return this.loader.context;
        }
      }]);

      return CmcdFragmentLoader;
    }();
  }
  /**
   * Generate a random v4 UUI
   *
   * @returns {string}
   */
  ;

  CMCDController.uuid = function uuid() {
    var url = URL.createObjectURL(new Blob());
    var uuid = url.toString();
    URL.revokeObjectURL(url);
    return uuid.substr(uuid.lastIndexOf('/') + 1);
  }
  /**
   * Serialize a CMCD data object according to the rules defined in the
   * section 3.2 of
   * [CTA-5004](https://cdn.cta.tech/cta/media/media/resources/standards/pdfs/cta-5004-final.pdf).
   */
  ;

  CMCDController.serialize = function serialize(data) {
    var results = [];

    var isValid = function isValid(value) {
      return !Number.isNaN(value) && value != null && value !== '' && value !== false;
    };

    var toRounded = function toRounded(value) {
      return Math.round(value);
    };

    var toHundred = function toHundred(value) {
      return toRounded(value / 100) * 100;
    };

    var toUrlSafe = function toUrlSafe(value) {
      return encodeURIComponent(value);
    };

    var formatters = {
      br: toRounded,
      d: toRounded,
      bl: toHundred,
      dl: toHundred,
      mtp: toHundred,
      nor: toUrlSafe,
      rtp: toHundred,
      tb: toRounded
    };
    var keys = Object.keys(data || {}).sort();

    for (var _iterator2 = _createForOfIteratorHelperLoose(keys), _step2; !(_step2 = _iterator2()).done;) {
      var key = _step2.value;
      var value = data[key]; // ignore invalid values

      if (!isValid(value)) {
        continue;
      } // Version should only be reported if not equal to 1.


      if (key === 'v' && value === 1) {
        continue;
      } // Playback rate should only be sent if not equal to 1.


      if (key == 'pr' && value === 1) {
        continue;
      } // Certain values require special formatting


      var formatter = formatters[key];

      if (formatter) {
        value = formatter(value);
      } // Serialize the key/value pair


      var type = typeof value;
      var result = void 0;

      if (key === 'ot' || key === 'sf' || key === 'st') {
        result = key + "=" + value;
      } else if (type === 'boolean') {
        result = key;
      } else if (type === 'number') {
        result = key + "=" + value;
      } else {
        result = key + "=" + JSON.stringify(value);
      }

      results.push(result);
    }

    return results.join(',');
  }
  /**
   * Convert a CMCD data object to request headers according to the rules
   * defined in the section 2.1 and 3.2 of
   * [CTA-5004](https://cdn.cta.tech/cta/media/media/resources/standards/pdfs/cta-5004-final.pdf).
   */
  ;

  CMCDController.toHeaders = function toHeaders(data) {
    var keys = Object.keys(data);
    var headers = {};
    var headerNames = ['Object', 'Request', 'Session', 'Status'];
    var headerGroups = [{}, {}, {}, {}];
    var headerMap = {
      br: 0,
      d: 0,
      ot: 0,
      tb: 0,
      bl: 1,
      dl: 1,
      mtp: 1,
      nor: 1,
      nrr: 1,
      su: 1,
      cid: 2,
      pr: 2,
      sf: 2,
      sid: 2,
      st: 2,
      v: 2,
      bs: 3,
      rtp: 3
    };

    for (var _i = 0, _keys = keys; _i < _keys.length; _i++) {
      var key = _keys[_i];
      // Unmapped fields are mapped to the Request header
      var index = headerMap[key] != null ? headerMap[key] : 1;
      headerGroups[index][key] = data[key];
    }

    for (var i = 0; i < headerGroups.length; i++) {
      var value = CMCDController.serialize(headerGroups[i]);

      if (value) {
        headers["CMCD-" + headerNames[i]] = value;
      }
    }

    return headers;
  }
  /**
   * Convert a CMCD data object to query args according to the rules
   * defined in the section 2.2 and 3.2 of
   * [CTA-5004](https://cdn.cta.tech/cta/media/media/resources/standards/pdfs/cta-5004-final.pdf).
   */
  ;

  CMCDController.toQuery = function toQuery(data) {
    return "CMCD=" + encodeURIComponent(CMCDController.serialize(data));
  }
  /**
   * Append query args to a uri.
   */
  ;

  CMCDController.appendQueryToUri = function appendQueryToUri(uri, query) {
    if (!query) {
      return uri;
    }

    var separator = uri.includes('?') ? '&' : '?';
    return "" + uri + separator + query;
  };

  return CMCDController;
}();



/***/ }),

/***/ "./src/controller/eme-controller.ts":
/*!******************************************!*\
  !*** ./src/controller/eme-controller.ts ***!
  \******************************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony import */ var _events__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../events */ "./src/events.ts");
/* harmony import */ var _errors__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../errors */ "./src/errors.ts");
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../utils/logger */ "./src/utils/logger.ts");
/* harmony import */ var _utils_mediakeys_helper__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../utils/mediakeys-helper */ "./src/utils/mediakeys-helper.ts");
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

/**
 * @author Stephan Hesse <disparat@gmail.com> | <tchakabam@gmail.com>
 *
 * DRM support for Hls.js
 */




var MAX_LICENSE_REQUEST_FAILURES = 3;
/**
 * @see https://developer.mozilla.org/en-US/docs/Web/API/MediaKeySystemConfiguration
 * @param {Array<string>} audioCodecs List of required audio codecs to support
 * @param {Array<string>} videoCodecs List of required video codecs to support
 * @param {object} drmSystemOptions Optional parameters/requirements for the key-system
 * @returns {Array<MediaSystemConfiguration>} An array of supported configurations
 */

var createWidevineMediaKeySystemConfigurations = function createWidevineMediaKeySystemConfigurations(audioCodecs, videoCodecs, drmSystemOptions) {
  /* jshint ignore:line */
  var baseConfig = {
    // initDataTypes: ['keyids', 'mp4'],
    // label: "",
    // persistentState: "not-allowed", // or "required" ?
    // distinctiveIdentifier: "not-allowed", // or "required" ?
    // sessionTypes: ['temporary'],
    audioCapabilities: [],
    // { contentType: 'audio/mp4; codecs="mp4a.40.2"' }
    videoCapabilities: [] // { contentType: 'video/mp4; codecs="avc1.42E01E"' }

  };
  audioCodecs.forEach(function (codec) {
    baseConfig.audioCapabilities.push({
      contentType: "audio/mp4; codecs=\"" + codec + "\"",
      robustness: drmSystemOptions.audioRobustness || ''
    });
  });
  videoCodecs.forEach(function (codec) {
    baseConfig.videoCapabilities.push({
      contentType: "video/mp4; codecs=\"" + codec + "\"",
      robustness: drmSystemOptions.videoRobustness || ''
    });
  });
  return [baseConfig];
};
/**
 * The idea here is to handle key-system (and their respective platforms) specific configuration differences
 * in order to work with the local requestMediaKeySystemAccess method.
 *
 * We can also rule-out platform-related key-system support at this point by throwing an error.
 *
 * @param {string} keySystem Identifier for the key-system, see `KeySystems` enum
 * @param {Array<string>} audioCodecs List of required audio codecs to support
 * @param {Array<string>} videoCodecs List of required video codecs to support
 * @throws will throw an error if a unknown key system is passed
 * @returns {Array<MediaSystemConfiguration>} A non-empty Array of MediaKeySystemConfiguration objects
 */


var getSupportedMediaKeySystemConfigurations = function getSupportedMediaKeySystemConfigurations(keySystem, audioCodecs, videoCodecs, drmSystemOptions) {
  switch (keySystem) {
    case _utils_mediakeys_helper__WEBPACK_IMPORTED_MODULE_3__["KeySystems"].WIDEVINE:
      return createWidevineMediaKeySystemConfigurations(audioCodecs, videoCodecs, drmSystemOptions);

    default:
      throw new Error("Unknown key-system: " + keySystem);
  }
};

/**
 * Controller to deal with encrypted media extensions (EME)
 * @see https://developer.mozilla.org/en-US/docs/Web/API/Encrypted_Media_Extensions_API
 *
 * @class
 * @constructor
 */
var EMEController = /*#__PURE__*/function () {
  /**
   * @constructs
   * @param {Hls} hls Our Hls.js instance
   */
  function EMEController(hls) {
    this.hls = void 0;
    this._widevineLicenseUrl = void 0;
    this._licenseXhrSetup = void 0;
    this._licenseResponseCallback = void 0;
    this._emeEnabled = void 0;
    this._requestMediaKeySystemAccess = void 0;
    this._drmSystemOptions = void 0;
    this._config = void 0;
    this._mediaKeysList = [];
    this._media = null;
    this._hasSetMediaKeys = false;
    this._requestLicenseFailureCount = 0;
    this.mediaKeysPromise = null;
    this._onMediaEncrypted = this.onMediaEncrypted.bind(this);
    this.hls = hls;
    this._config = hls.config;
    this._widevineLicenseUrl = this._config.widevineLicenseUrl;
    this._licenseXhrSetup = this._config.licenseXhrSetup;
    this._licenseResponseCallback = this._config.licenseResponseCallback;
    this._emeEnabled = this._config.emeEnabled;
    this._requestMediaKeySystemAccess = this._config.requestMediaKeySystemAccessFunc;
    this._drmSystemOptions = this._config.drmSystemOptions;

    this._registerListeners();
  }

  var _proto = EMEController.prototype;

  _proto.destroy = function destroy() {
    this._unregisterListeners(); // @ts-ignore


    this.hls = this._onMediaEncrypted = null;
    this._requestMediaKeySystemAccess = null;
  };

  _proto._registerListeners = function _registerListeners() {
    this.hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MEDIA_ATTACHED, this.onMediaAttached, this);
    this.hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MEDIA_DETACHED, this.onMediaDetached, this);
    this.hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MANIFEST_PARSED, this.onManifestParsed, this);
  };

  _proto._unregisterListeners = function _unregisterListeners() {
    this.hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MEDIA_ATTACHED, this.onMediaAttached, this);
    this.hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MEDIA_DETACHED, this.onMediaDetached, this);
    this.hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MANIFEST_PARSED, this.onManifestParsed, this);
  }
  /**
   * @param {string} keySystem Identifier for the key-system, see `KeySystems` enum
   * @returns {string} License server URL for key-system (if any configured, otherwise causes error)
   * @throws if a unsupported keysystem is passed
   */
  ;

  _proto.getLicenseServerUrl = function getLicenseServerUrl(keySystem) {
    switch (keySystem) {
      case _utils_mediakeys_helper__WEBPACK_IMPORTED_MODULE_3__["KeySystems"].WIDEVINE:
        if (!this._widevineLicenseUrl) {
          break;
        }

        return this._widevineLicenseUrl;
    }

    throw new Error("no license server URL configured for key-system \"" + keySystem + "\"");
  }
  /**
   * Requests access object and adds it to our list upon success
   * @private
   * @param {string} keySystem System ID (see `KeySystems`)
   * @param {Array<string>} audioCodecs List of required audio codecs to support
   * @param {Array<string>} videoCodecs List of required video codecs to support
   * @throws When a unsupported KeySystem is passed
   */
  ;

  _proto._attemptKeySystemAccess = function _attemptKeySystemAccess(keySystem, audioCodecs, videoCodecs) {
    var _this = this;

    // This can throw, but is caught in event handler callpath
    var mediaKeySystemConfigs = getSupportedMediaKeySystemConfigurations(keySystem, audioCodecs, videoCodecs, this._drmSystemOptions);
    _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].log('Requesting encrypted media key-system access'); // expecting interface like window.navigator.requestMediaKeySystemAccess

    var keySystemAccessPromise = this.requestMediaKeySystemAccess(keySystem, mediaKeySystemConfigs);
    this.mediaKeysPromise = keySystemAccessPromise.then(function (mediaKeySystemAccess) {
      return _this._onMediaKeySystemAccessObtained(keySystem, mediaKeySystemAccess);
    });
    keySystemAccessPromise.catch(function (err) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].error("Failed to obtain key-system \"" + keySystem + "\" access:", err);
    });
  };

  /**
   * Handles obtaining access to a key-system
   * @private
   * @param {string} keySystem
   * @param {MediaKeySystemAccess} mediaKeySystemAccess https://developer.mozilla.org/en-US/docs/Web/API/MediaKeySystemAccess
   */
  _proto._onMediaKeySystemAccessObtained = function _onMediaKeySystemAccessObtained(keySystem, mediaKeySystemAccess) {
    var _this2 = this;

    _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].log("Access for key-system \"" + keySystem + "\" obtained");
    var mediaKeysListItem = {
      mediaKeysSessionInitialized: false,
      mediaKeySystemAccess: mediaKeySystemAccess,
      mediaKeySystemDomain: keySystem
    };

    this._mediaKeysList.push(mediaKeysListItem);

    var mediaKeysPromise = Promise.resolve().then(function () {
      return mediaKeySystemAccess.createMediaKeys();
    }).then(function (mediaKeys) {
      mediaKeysListItem.mediaKeys = mediaKeys;
      _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].log("Media-keys created for key-system \"" + keySystem + "\"");

      _this2._onMediaKeysCreated();

      return mediaKeys;
    });
    mediaKeysPromise.catch(function (err) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].error('Failed to create media-keys:', err);
    });
    return mediaKeysPromise;
  }
  /**
   * Handles key-creation (represents access to CDM). We are going to create key-sessions upon this
   * for all existing keys where no session exists yet.
   *
   * @private
   */
  ;

  _proto._onMediaKeysCreated = function _onMediaKeysCreated() {
    var _this3 = this;

    // check for all key-list items if a session exists, otherwise, create one
    this._mediaKeysList.forEach(function (mediaKeysListItem) {
      if (!mediaKeysListItem.mediaKeysSession) {
        // mediaKeys is definitely initialized here
        mediaKeysListItem.mediaKeysSession = mediaKeysListItem.mediaKeys.createSession();

        _this3._onNewMediaKeySession(mediaKeysListItem.mediaKeysSession);
      }
    });
  }
  /**
   * @private
   * @param {*} keySession
   */
  ;

  _proto._onNewMediaKeySession = function _onNewMediaKeySession(keySession) {
    var _this4 = this;

    _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].log("New key-system session " + keySession.sessionId);
    keySession.addEventListener('message', function (event) {
      _this4._onKeySessionMessage(keySession, event.message);
    }, false);
  }
  /**
   * @private
   * @param {MediaKeySession} keySession
   * @param {ArrayBuffer} message
   */
  ;

  _proto._onKeySessionMessage = function _onKeySessionMessage(keySession, message) {
    _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].log('Got EME message event, creating license request');

    this._requestLicense(message, function (data) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].log("Received license data (length: " + (data ? data.byteLength : data) + "), updating key-session");
      keySession.update(data);
    });
  }
  /**
   * @private
   * @param e {MediaEncryptedEvent}
   */
  ;

  _proto.onMediaEncrypted = function onMediaEncrypted(e) {
    var _this5 = this;

    _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].log("Media is encrypted using \"" + e.initDataType + "\" init data type");

    if (!this.mediaKeysPromise) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].error('Fatal: Media is encrypted but no CDM access or no keys have been requested');
      this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].ERROR, {
        type: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorTypes"].KEY_SYSTEM_ERROR,
        details: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorDetails"].KEY_SYSTEM_NO_KEYS,
        fatal: true
      });
      return;
    }

    var finallySetKeyAndStartSession = function finallySetKeyAndStartSession(mediaKeys) {
      if (!_this5._media) {
        return;
      }

      _this5._attemptSetMediaKeys(mediaKeys);

      _this5._generateRequestWithPreferredKeySession(e.initDataType, e.initData);
    }; // Could use `Promise.finally` but some Promise polyfills are missing it


    this.mediaKeysPromise.then(finallySetKeyAndStartSession).catch(finallySetKeyAndStartSession);
  }
  /**
   * @private
   */
  ;

  _proto._attemptSetMediaKeys = function _attemptSetMediaKeys(mediaKeys) {
    if (!this._media) {
      throw new Error('Attempted to set mediaKeys without first attaching a media element');
    }

    if (!this._hasSetMediaKeys) {
      // FIXME: see if we can/want/need-to really to deal with several potential key-sessions?
      var keysListItem = this._mediaKeysList[0];

      if (!keysListItem || !keysListItem.mediaKeys) {
        _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].error('Fatal: Media is encrypted but no CDM access or no keys have been obtained yet');
        this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].ERROR, {
          type: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorTypes"].KEY_SYSTEM_ERROR,
          details: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorDetails"].KEY_SYSTEM_NO_KEYS,
          fatal: true
        });
        return;
      }

      _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].log('Setting keys for encrypted media');

      this._media.setMediaKeys(keysListItem.mediaKeys);

      this._hasSetMediaKeys = true;
    }
  }
  /**
   * @private
   */
  ;

  _proto._generateRequestWithPreferredKeySession = function _generateRequestWithPreferredKeySession(initDataType, initData) {
    var _this6 = this;

    // FIXME: see if we can/want/need-to really to deal with several potential key-sessions?
    var keysListItem = this._mediaKeysList[0];

    if (!keysListItem) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].error('Fatal: Media is encrypted but not any key-system access has been obtained yet');
      this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].ERROR, {
        type: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorTypes"].KEY_SYSTEM_ERROR,
        details: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorDetails"].KEY_SYSTEM_NO_ACCESS,
        fatal: true
      });
      return;
    }

    if (keysListItem.mediaKeysSessionInitialized) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].warn('Key-Session already initialized but requested again');
      return;
    }

    var keySession = keysListItem.mediaKeysSession;

    if (!keySession) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].error('Fatal: Media is encrypted but no key-session existing');
      this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].ERROR, {
        type: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorTypes"].KEY_SYSTEM_ERROR,
        details: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorDetails"].KEY_SYSTEM_NO_SESSION,
        fatal: true
      });
      return;
    } // initData is null if the media is not CORS-same-origin


    if (!initData) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].warn('Fatal: initData required for generating a key session is null');
      this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].ERROR, {
        type: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorTypes"].KEY_SYSTEM_ERROR,
        details: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorDetails"].KEY_SYSTEM_NO_INIT_DATA,
        fatal: true
      });
      return;
    }

    _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].log("Generating key-session request for \"" + initDataType + "\" init data type");
    keysListItem.mediaKeysSessionInitialized = true;
    keySession.generateRequest(initDataType, initData).then(function () {
      _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].debug('Key-session generation succeeded');
    }).catch(function (err) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].error('Error generating key-session request:', err);

      _this6.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].ERROR, {
        type: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorTypes"].KEY_SYSTEM_ERROR,
        details: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorDetails"].KEY_SYSTEM_NO_SESSION,
        fatal: false
      });
    });
  }
  /**
   * @private
   * @param {string} url License server URL
   * @param {ArrayBuffer} keyMessage Message data issued by key-system
   * @param {function} callback Called when XHR has succeeded
   * @returns {XMLHttpRequest} Unsent (but opened state) XHR object
   * @throws if XMLHttpRequest construction failed
   */
  ;

  _proto._createLicenseXhr = function _createLicenseXhr(url, keyMessage, callback) {
    var xhr = new XMLHttpRequest();
    xhr.responseType = 'arraybuffer';
    xhr.onreadystatechange = this._onLicenseRequestReadyStageChange.bind(this, xhr, url, keyMessage, callback);
    var licenseXhrSetup = this._licenseXhrSetup;

    if (licenseXhrSetup) {
      try {
        licenseXhrSetup.call(this.hls, xhr, url);
        licenseXhrSetup = undefined;
      } catch (e) {
        _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].error(e);
      }
    }

    try {
      // if licenseXhrSetup did not yet call open, let's do it now
      if (!xhr.readyState) {
        xhr.open('POST', url, true);
      }

      if (licenseXhrSetup) {
        licenseXhrSetup.call(this.hls, xhr, url);
      }
    } catch (e) {
      // IE11 throws an exception on xhr.open if attempting to access an HTTP resource over HTTPS
      throw new Error("issue setting up KeySystem license XHR " + e);
    }

    return xhr;
  }
  /**
   * @private
   * @param {XMLHttpRequest} xhr
   * @param {string} url License server URL
   * @param {ArrayBuffer} keyMessage Message data issued by key-system
   * @param {function} callback Called when XHR has succeeded
   */
  ;

  _proto._onLicenseRequestReadyStageChange = function _onLicenseRequestReadyStageChange(xhr, url, keyMessage, callback) {
    switch (xhr.readyState) {
      case 4:
        if (xhr.status === 200) {
          this._requestLicenseFailureCount = 0;
          _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].log('License request succeeded');
          var _data = xhr.response;
          var licenseResponseCallback = this._licenseResponseCallback;

          if (licenseResponseCallback) {
            try {
              _data = licenseResponseCallback.call(this.hls, xhr, url);
            } catch (e) {
              _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].error(e);
            }
          }

          callback(_data);
        } else {
          _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].error("License Request XHR failed (" + url + "). Status: " + xhr.status + " (" + xhr.statusText + ")");
          this._requestLicenseFailureCount++;

          if (this._requestLicenseFailureCount > MAX_LICENSE_REQUEST_FAILURES) {
            this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].ERROR, {
              type: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorTypes"].KEY_SYSTEM_ERROR,
              details: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorDetails"].KEY_SYSTEM_LICENSE_REQUEST_FAILED,
              fatal: true
            });
            return;
          }

          var attemptsLeft = MAX_LICENSE_REQUEST_FAILURES - this._requestLicenseFailureCount + 1;
          _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].warn("Retrying license request, " + attemptsLeft + " attempts left");

          this._requestLicense(keyMessage, callback);
        }

        break;
    }
  }
  /**
   * @private
   * @param {MediaKeysListItem} keysListItem
   * @param {ArrayBuffer} keyMessage
   * @returns {ArrayBuffer} Challenge data posted to license server
   * @throws if KeySystem is unsupported
   */
  ;

  _proto._generateLicenseRequestChallenge = function _generateLicenseRequestChallenge(keysListItem, keyMessage) {
    switch (keysListItem.mediaKeySystemDomain) {
      // case KeySystems.PLAYREADY:
      // from https://github.com/MicrosoftEdge/Demos/blob/master/eme/scripts/demo.js

      /*
      if (this.licenseType !== this.LICENSE_TYPE_WIDEVINE) {
        // For PlayReady CDMs, we need to dig the Challenge out of the XML.
        var keyMessageXml = new DOMParser().parseFromString(String.fromCharCode.apply(null, new Uint16Array(keyMessage)), 'application/xml');
        if (keyMessageXml.getElementsByTagName('Challenge')[0]) {
            challenge = atob(keyMessageXml.getElementsByTagName('Challenge')[0].childNodes[0].nodeValue);
        } else {
            throw 'Cannot find <Challenge> in key message';
        }
        var headerNames = keyMessageXml.getElementsByTagName('name');
        var headerValues = keyMessageXml.getElementsByTagName('value');
        if (headerNames.length !== headerValues.length) {
            throw 'Mismatched header <name>/<value> pair in key message';
        }
        for (var i = 0; i < headerNames.length; i++) {
            xhr.setRequestHeader(headerNames[i].childNodes[0].nodeValue, headerValues[i].childNodes[0].nodeValue);
        }
      }
      break;
      */
      case _utils_mediakeys_helper__WEBPACK_IMPORTED_MODULE_3__["KeySystems"].WIDEVINE:
        // For Widevine CDMs, the challenge is the keyMessage.
        return keyMessage;
    }

    throw new Error("unsupported key-system: " + keysListItem.mediaKeySystemDomain);
  }
  /**
   * @private
   * @param keyMessage
   * @param callback
   */
  ;

  _proto._requestLicense = function _requestLicense(keyMessage, callback) {
    _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].log('Requesting content license for key-system');
    var keysListItem = this._mediaKeysList[0];

    if (!keysListItem) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].error('Fatal error: Media is encrypted but no key-system access has been obtained yet');
      this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].ERROR, {
        type: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorTypes"].KEY_SYSTEM_ERROR,
        details: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorDetails"].KEY_SYSTEM_NO_ACCESS,
        fatal: true
      });
      return;
    }

    try {
      var _url = this.getLicenseServerUrl(keysListItem.mediaKeySystemDomain);

      var _xhr = this._createLicenseXhr(_url, keyMessage, callback);

      _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].log("Sending license request to URL: " + _url);

      var challenge = this._generateLicenseRequestChallenge(keysListItem, keyMessage);

      _xhr.send(challenge);
    } catch (e) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].error("Failure requesting DRM license: " + e);
      this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].ERROR, {
        type: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorTypes"].KEY_SYSTEM_ERROR,
        details: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorDetails"].KEY_SYSTEM_LICENSE_REQUEST_FAILED,
        fatal: true
      });
    }
  };

  _proto.onMediaAttached = function onMediaAttached(event, data) {
    if (!this._emeEnabled) {
      return;
    }

    var media = data.media; // keep reference of media

    this._media = media;
    media.addEventListener('encrypted', this._onMediaEncrypted);
  };

  _proto.onMediaDetached = function onMediaDetached() {
    var media = this._media;
    var mediaKeysList = this._mediaKeysList;

    if (!media) {
      return;
    }

    media.removeEventListener('encrypted', this._onMediaEncrypted);
    this._media = null;
    this._mediaKeysList = []; // Close all sessions and remove media keys from the video element.

    Promise.all(mediaKeysList.map(function (mediaKeysListItem) {
      if (mediaKeysListItem.mediaKeysSession) {
        return mediaKeysListItem.mediaKeysSession.close().catch(function () {// Ignore errors when closing the sessions. Closing a session that
          // generated no key requests will throw an error.
        });
      }
    })).then(function () {
      return media.setMediaKeys(null);
    }).catch(function () {// Ignore any failures while removing media keys from the video element.
    });
  };

  _proto.onManifestParsed = function onManifestParsed(event, data) {
    if (!this._emeEnabled) {
      return;
    }

    var audioCodecs = data.levels.map(function (level) {
      return level.audioCodec;
    }).filter(function (audioCodec) {
      return !!audioCodec;
    });
    var videoCodecs = data.levels.map(function (level) {
      return level.videoCodec;
    }).filter(function (videoCodec) {
      return !!videoCodec;
    });

    this._attemptKeySystemAccess(_utils_mediakeys_helper__WEBPACK_IMPORTED_MODULE_3__["KeySystems"].WIDEVINE, audioCodecs, videoCodecs);
  };

  _createClass(EMEController, [{
    key: "requestMediaKeySystemAccess",
    get: function get() {
      if (!this._requestMediaKeySystemAccess) {
        throw new Error('No requestMediaKeySystemAccess function configured');
      }

      return this._requestMediaKeySystemAccess;
    }
  }]);

  return EMEController;
}();

/* harmony default export */ __webpack_exports__["default"] = (EMEController);

/***/ }),

/***/ "./src/controller/fps-controller.ts":
/*!******************************************!*\
  !*** ./src/controller/fps-controller.ts ***!
  \******************************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony import */ var _events__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../events */ "./src/events.ts");
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../utils/logger */ "./src/utils/logger.ts");



var FPSController = /*#__PURE__*/function () {
  // stream controller must be provided as a dependency!
  function FPSController(hls) {
    this.hls = void 0;
    this.isVideoPlaybackQualityAvailable = false;
    this.timer = void 0;
    this.media = null;
    this.lastTime = void 0;
    this.lastDroppedFrames = 0;
    this.lastDecodedFrames = 0;
    this.streamController = void 0;
    this.hls = hls;
    this.registerListeners();
  }

  var _proto = FPSController.prototype;

  _proto.setStreamController = function setStreamController(streamController) {
    this.streamController = streamController;
  };

  _proto.registerListeners = function registerListeners() {
    this.hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MEDIA_ATTACHING, this.onMediaAttaching, this);
  };

  _proto.unregisterListeners = function unregisterListeners() {
    this.hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MEDIA_ATTACHING, this.onMediaAttaching);
  };

  _proto.destroy = function destroy() {
    if (this.timer) {
      clearInterval(this.timer);
    }

    this.unregisterListeners();
    this.isVideoPlaybackQualityAvailable = false;
    this.media = null;
  };

  _proto.onMediaAttaching = function onMediaAttaching(event, data) {
    var config = this.hls.config;

    if (config.capLevelOnFPSDrop) {
      var media = data.media instanceof self.HTMLVideoElement ? data.media : null;
      this.media = media;

      if (media && typeof media.getVideoPlaybackQuality === 'function') {
        this.isVideoPlaybackQualityAvailable = true;
      }

      self.clearInterval(this.timer);
      this.timer = self.setInterval(this.checkFPSInterval.bind(this), config.fpsDroppedMonitoringPeriod);
    }
  };

  _proto.checkFPS = function checkFPS(video, decodedFrames, droppedFrames) {
    var currentTime = performance.now();

    if (decodedFrames) {
      if (this.lastTime) {
        var currentPeriod = currentTime - this.lastTime;
        var currentDropped = droppedFrames - this.lastDroppedFrames;
        var currentDecoded = decodedFrames - this.lastDecodedFrames;
        var droppedFPS = 1000 * currentDropped / currentPeriod;
        var hls = this.hls;
        hls.trigger(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].FPS_DROP, {
          currentDropped: currentDropped,
          currentDecoded: currentDecoded,
          totalDroppedFrames: droppedFrames
        });

        if (droppedFPS > 0) {
          // logger.log('checkFPS : droppedFPS/decodedFPS:' + droppedFPS/(1000 * currentDecoded / currentPeriod));
          if (currentDropped > hls.config.fpsDroppedMonitoringThreshold * currentDecoded) {
            var currentLevel = hls.currentLevel;
            _utils_logger__WEBPACK_IMPORTED_MODULE_1__["logger"].warn('drop FPS ratio greater than max allowed value for currentLevel: ' + currentLevel);

            if (currentLevel > 0 && (hls.autoLevelCapping === -1 || hls.autoLevelCapping >= currentLevel)) {
              currentLevel = currentLevel - 1;
              hls.trigger(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].FPS_DROP_LEVEL_CAPPING, {
                level: currentLevel,
                droppedLevel: hls.currentLevel
              });
              hls.autoLevelCapping = currentLevel;
              this.streamController.nextLevelSwitch();
            }
          }
        }
      }

      this.lastTime = currentTime;
      this.lastDroppedFrames = droppedFrames;
      this.lastDecodedFrames = decodedFrames;
    }
  };

  _proto.checkFPSInterval = function checkFPSInterval() {
    var video = this.media;

    if (video) {
      if (this.isVideoPlaybackQualityAvailable) {
        var videoPlaybackQuality = video.getVideoPlaybackQuality();
        this.checkFPS(video, videoPlaybackQuality.totalVideoFrames, videoPlaybackQuality.droppedVideoFrames);
      } else {
        // HTMLVideoElement doesn't include the webkit types
        this.checkFPS(video, video.webkitDecodedFrameCount, video.webkitDroppedFrameCount);
      }
    }
  };

  return FPSController;
}();

/* harmony default export */ __webpack_exports__["default"] = (FPSController);

/***/ }),

/***/ "./src/controller/fragment-finders.ts":
/*!********************************************!*\
  !*** ./src/controller/fragment-finders.ts ***!
  \********************************************/
/*! exports provided: findFragmentByPDT, findFragmentByPTS, fragmentWithinToleranceTest, pdtWithinToleranceTest, findFragWithCC */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "findFragmentByPDT", function() { return findFragmentByPDT; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "findFragmentByPTS", function() { return findFragmentByPTS; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fragmentWithinToleranceTest", function() { return fragmentWithinToleranceTest; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "pdtWithinToleranceTest", function() { return pdtWithinToleranceTest; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "findFragWithCC", function() { return findFragWithCC; });
/* harmony import */ var _home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./src/polyfills/number */ "./src/polyfills/number.ts");
/* harmony import */ var _utils_binary_search__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../utils/binary-search */ "./src/utils/binary-search.ts");



/**
 * Returns first fragment whose endPdt value exceeds the given PDT.
 * @param {Array<Fragment>} fragments - The array of candidate fragments
 * @param {number|null} [PDTValue = null] - The PDT value which must be exceeded
 * @param {number} [maxFragLookUpTolerance = 0] - The amount of time that a fragment's start/end can be within in order to be considered contiguous
 * @returns {*|null} fragment - The best matching fragment
 */
function findFragmentByPDT(fragments, PDTValue, maxFragLookUpTolerance) {
  if (PDTValue === null || !Array.isArray(fragments) || !fragments.length || !Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(PDTValue)) {
    return null;
  } // if less than start


  var startPDT = fragments[0].programDateTime;

  if (PDTValue < (startPDT || 0)) {
    return null;
  }

  var endPDT = fragments[fragments.length - 1].endProgramDateTime;

  if (PDTValue >= (endPDT || 0)) {
    return null;
  }

  maxFragLookUpTolerance = maxFragLookUpTolerance || 0;

  for (var seg = 0; seg < fragments.length; ++seg) {
    var frag = fragments[seg];

    if (pdtWithinToleranceTest(PDTValue, maxFragLookUpTolerance, frag)) {
      return frag;
    }
  }

  return null;
}
/**
 * Finds a fragment based on the SN of the previous fragment; or based on the needs of the current buffer.
 * This method compensates for small buffer gaps by applying a tolerance to the start of any candidate fragment, thus
 * breaking any traps which would cause the same fragment to be continuously selected within a small range.
 * @param {*} fragPrevious - The last frag successfully appended
 * @param {Array} fragments - The array of candidate fragments
 * @param {number} [bufferEnd = 0] - The end of the contiguous buffered range the playhead is currently within
 * @param {number} maxFragLookUpTolerance - The amount of time that a fragment's start/end can be within in order to be considered contiguous
 * @returns {*} foundFrag - The best matching fragment
 */

function findFragmentByPTS(fragPrevious, fragments, bufferEnd, maxFragLookUpTolerance) {
  if (bufferEnd === void 0) {
    bufferEnd = 0;
  }

  if (maxFragLookUpTolerance === void 0) {
    maxFragLookUpTolerance = 0;
  }

  var fragNext = null;

  if (fragPrevious) {
    fragNext = fragments[fragPrevious.sn - fragments[0].sn + 1] || null;
  } else if (bufferEnd === 0 && fragments[0].start === 0) {
    fragNext = fragments[0];
  } // Prefer the next fragment if it's within tolerance


  if (fragNext && fragmentWithinToleranceTest(bufferEnd, maxFragLookUpTolerance, fragNext) === 0) {
    return fragNext;
  } // We might be seeking past the tolerance so find the best match


  var foundFragment = _utils_binary_search__WEBPACK_IMPORTED_MODULE_1__["default"].search(fragments, fragmentWithinToleranceTest.bind(null, bufferEnd, maxFragLookUpTolerance));

  if (foundFragment) {
    return foundFragment;
  } // If no match was found return the next fragment after fragPrevious, or null


  return fragNext;
}
/**
 * The test function used by the findFragmentBySn's BinarySearch to look for the best match to the current buffer conditions.
 * @param {*} candidate - The fragment to test
 * @param {number} [bufferEnd = 0] - The end of the current buffered range the playhead is currently within
 * @param {number} [maxFragLookUpTolerance = 0] - The amount of time that a fragment's start can be within in order to be considered contiguous
 * @returns {number} - 0 if it matches, 1 if too low, -1 if too high
 */

function fragmentWithinToleranceTest(bufferEnd, maxFragLookUpTolerance, candidate) {
  if (bufferEnd === void 0) {
    bufferEnd = 0;
  }

  if (maxFragLookUpTolerance === void 0) {
    maxFragLookUpTolerance = 0;
  }

  // offset should be within fragment boundary - config.maxFragLookUpTolerance
  // this is to cope with situations like
  // bufferEnd = 9.991
  // frag[Ø] : [0,10]
  // frag[1] : [10,20]
  // bufferEnd is within frag[0] range ... although what we are expecting is to return frag[1] here
  //              frag start               frag start+duration
  //                  |-----------------------------|
  //              <--->                         <--->
  //  ...--------><-----------------------------><---------....
  // previous frag         matching fragment         next frag
  //  return -1             return 0                 return 1
  // logger.log(`level/sn/start/end/bufEnd:${level}/${candidate.sn}/${candidate.start}/${(candidate.start+candidate.duration)}/${bufferEnd}`);
  // Set the lookup tolerance to be small enough to detect the current segment - ensures we don't skip over very small segments
  var candidateLookupTolerance = Math.min(maxFragLookUpTolerance, candidate.duration + (candidate.deltaPTS ? candidate.deltaPTS : 0));

  if (candidate.start + candidate.duration - candidateLookupTolerance <= bufferEnd) {
    return 1;
  } else if (candidate.start - candidateLookupTolerance > bufferEnd && candidate.start) {
    // if maxFragLookUpTolerance will have negative value then don't return -1 for first element
    return -1;
  }

  return 0;
}
/**
 * The test function used by the findFragmentByPdt's BinarySearch to look for the best match to the current buffer conditions.
 * This function tests the candidate's program date time values, as represented in Unix time
 * @param {*} candidate - The fragment to test
 * @param {number} [pdtBufferEnd = 0] - The Unix time representing the end of the current buffered range
 * @param {number} [maxFragLookUpTolerance = 0] - The amount of time that a fragment's start can be within in order to be considered contiguous
 * @returns {boolean} True if contiguous, false otherwise
 */

function pdtWithinToleranceTest(pdtBufferEnd, maxFragLookUpTolerance, candidate) {
  var candidateLookupTolerance = Math.min(maxFragLookUpTolerance, candidate.duration + (candidate.deltaPTS ? candidate.deltaPTS : 0)) * 1000; // endProgramDateTime can be null, default to zero

  var endProgramDateTime = candidate.endProgramDateTime || 0;
  return endProgramDateTime - candidateLookupTolerance > pdtBufferEnd;
}
function findFragWithCC(fragments, cc) {
  return _utils_binary_search__WEBPACK_IMPORTED_MODULE_1__["default"].search(fragments, function (candidate) {
    if (candidate.cc < cc) {
      return 1;
    } else if (candidate.cc > cc) {
      return -1;
    } else {
      return 0;
    }
  });
}

/***/ }),

/***/ "./src/controller/fragment-tracker.ts":
/*!********************************************!*\
  !*** ./src/controller/fragment-tracker.ts ***!
  \********************************************/
/*! exports provided: FragmentState, FragmentTracker */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "FragmentState", function() { return FragmentState; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "FragmentTracker", function() { return FragmentTracker; });
/* harmony import */ var _events__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../events */ "./src/events.ts");
/* harmony import */ var _types_loader__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../types/loader */ "./src/types/loader.ts");


var FragmentState;

(function (FragmentState) {
  FragmentState["NOT_LOADED"] = "NOT_LOADED";
  FragmentState["BACKTRACKED"] = "BACKTRACKED";
  FragmentState["APPENDING"] = "APPENDING";
  FragmentState["PARTIAL"] = "PARTIAL";
  FragmentState["OK"] = "OK";
})(FragmentState || (FragmentState = {}));

var FragmentTracker = /*#__PURE__*/function () {
  function FragmentTracker(hls) {
    this.activeFragment = null;
    this.activeParts = null;
    this.fragments = Object.create(null);
    this.timeRanges = Object.create(null);
    this.bufferPadding = 0.2;
    this.hls = void 0;
    this.hls = hls;

    this._registerListeners();
  }

  var _proto = FragmentTracker.prototype;

  _proto._registerListeners = function _registerListeners() {
    var hls = this.hls;
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].BUFFER_APPENDED, this.onBufferAppended, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].FRAG_BUFFERED, this.onFragBuffered, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].FRAG_LOADED, this.onFragLoaded, this);
  };

  _proto._unregisterListeners = function _unregisterListeners() {
    var hls = this.hls;
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].BUFFER_APPENDED, this.onBufferAppended, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].FRAG_BUFFERED, this.onFragBuffered, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].FRAG_LOADED, this.onFragLoaded, this);
  };

  _proto.destroy = function destroy() {
    this._unregisterListeners(); // @ts-ignore


    this.fragments = this.timeRanges = null;
  }
  /**
   * Return a Fragment with an appended range that matches the position and levelType.
   * If not found any Fragment, return null
   */
  ;

  _proto.getAppendedFrag = function getAppendedFrag(position, levelType) {
    if (levelType === _types_loader__WEBPACK_IMPORTED_MODULE_1__["PlaylistLevelType"].MAIN) {
      var activeFragment = this.activeFragment,
          activeParts = this.activeParts;

      if (!activeFragment) {
        return null;
      }

      if (activeParts) {
        for (var i = activeParts.length; i--;) {
          var activePart = activeParts[i];
          var appendedPTS = activePart ? activePart.end : activeFragment.appendedPTS;

          if (activePart.start <= position && appendedPTS !== undefined && position <= appendedPTS) {
            // 9 is a magic number. remove parts from lookup after a match but keep some short seeks back.
            if (i > 9) {
              this.activeParts = activeParts.slice(i - 9);
            }

            return activePart;
          }
        }
      } else if (activeFragment.start <= position && activeFragment.appendedPTS !== undefined && position <= activeFragment.appendedPTS) {
        return activeFragment;
      }
    }

    return this.getBufferedFrag(position, levelType);
  }
  /**
   * Return a buffered Fragment that matches the position and levelType.
   * A buffered Fragment is one whose loading, parsing and appending is done (completed or "partial" meaning aborted).
   * If not found any Fragment, return null
   */
  ;

  _proto.getBufferedFrag = function getBufferedFrag(position, levelType) {
    var fragments = this.fragments;
    var keys = Object.keys(fragments);

    for (var i = keys.length; i--;) {
      var fragmentEntity = fragments[keys[i]];

      if ((fragmentEntity === null || fragmentEntity === void 0 ? void 0 : fragmentEntity.body.type) === levelType && fragmentEntity.buffered) {
        var frag = fragmentEntity.body;

        if (frag.start <= position && position <= frag.end) {
          return frag;
        }
      }
    }

    return null;
  }
  /**
   * Partial fragments effected by coded frame eviction will be removed
   * The browser will unload parts of the buffer to free up memory for new buffer data
   * Fragments will need to be reloaded when the buffer is freed up, removing partial fragments will allow them to reload(since there might be parts that are still playable)
   */
  ;

  _proto.detectEvictedFragments = function detectEvictedFragments(elementaryStream, timeRange, playlistType) {
    var _this = this;

    // Check if any flagged fragments have been unloaded
    Object.keys(this.fragments).forEach(function (key) {
      var fragmentEntity = _this.fragments[key];

      if (!fragmentEntity) {
        return;
      }

      if (!fragmentEntity.buffered) {
        if (fragmentEntity.body.type === playlistType) {
          _this.removeFragment(fragmentEntity.body);
        }

        return;
      }

      var esData = fragmentEntity.range[elementaryStream];

      if (!esData) {
        return;
      }

      esData.time.some(function (time) {
        var isNotBuffered = !_this.isTimeBuffered(time.startPTS, time.endPTS, timeRange);

        if (isNotBuffered) {
          // Unregister partial fragment as it needs to load again to be reused
          _this.removeFragment(fragmentEntity.body);
        }

        return isNotBuffered;
      });
    });
  }
  /**
   * Checks if the fragment passed in is loaded in the buffer properly
   * Partially loaded fragments will be registered as a partial fragment
   */
  ;

  _proto.detectPartialFragments = function detectPartialFragments(data) {
    var _this2 = this;

    var timeRanges = this.timeRanges;
    var frag = data.frag,
        part = data.part;

    if (!timeRanges || frag.sn === 'initSegment') {
      return;
    }

    var fragKey = getFragmentKey(frag);
    var fragmentEntity = this.fragments[fragKey];

    if (!fragmentEntity) {
      return;
    }

    Object.keys(timeRanges).forEach(function (elementaryStream) {
      var streamInfo = frag.elementaryStreams[elementaryStream];

      if (!streamInfo) {
        return;
      }

      var timeRange = timeRanges[elementaryStream];
      var partial = part !== null || streamInfo.partial === true;
      fragmentEntity.range[elementaryStream] = _this2.getBufferedTimes(frag, part, partial, timeRange);
    });
    fragmentEntity.backtrack = fragmentEntity.loaded = null;

    if (Object.keys(fragmentEntity.range).length) {
      fragmentEntity.buffered = true;
    } else {
      // remove fragment if nothing was appended
      this.removeFragment(fragmentEntity.body);
    }
  };

  _proto.fragBuffered = function fragBuffered(frag) {
    var fragKey = getFragmentKey(frag);
    var fragmentEntity = this.fragments[fragKey];

    if (fragmentEntity) {
      fragmentEntity.backtrack = fragmentEntity.loaded = null;
      fragmentEntity.buffered = true;
    }
  };

  _proto.getBufferedTimes = function getBufferedTimes(fragment, part, partial, timeRange) {
    var buffered = {
      time: [],
      partial: partial
    };
    var startPTS = part ? part.start : fragment.start;
    var endPTS = part ? part.end : fragment.end;
    var minEndPTS = fragment.minEndPTS || endPTS;
    var maxStartPTS = fragment.maxStartPTS || startPTS;

    for (var i = 0; i < timeRange.length; i++) {
      var startTime = timeRange.start(i) - this.bufferPadding;
      var endTime = timeRange.end(i) + this.bufferPadding;

      if (maxStartPTS >= startTime && minEndPTS <= endTime) {
        // Fragment is entirely contained in buffer
        // No need to check the other timeRange times since it's completely playable
        buffered.time.push({
          startPTS: Math.max(startPTS, timeRange.start(i)),
          endPTS: Math.min(endPTS, timeRange.end(i))
        });
        break;
      } else if (startPTS < endTime && endPTS > startTime) {
        buffered.partial = true; // Check for intersection with buffer
        // Get playable sections of the fragment

        buffered.time.push({
          startPTS: Math.max(startPTS, timeRange.start(i)),
          endPTS: Math.min(endPTS, timeRange.end(i))
        });
      } else if (endPTS <= startTime) {
        // No need to check the rest of the timeRange as it is in order
        break;
      }
    }

    return buffered;
  }
  /**
   * Gets the partial fragment for a certain time
   */
  ;

  _proto.getPartialFragment = function getPartialFragment(time) {
    var bestFragment = null;
    var timePadding;
    var startTime;
    var endTime;
    var bestOverlap = 0;
    var bufferPadding = this.bufferPadding,
        fragments = this.fragments;
    Object.keys(fragments).forEach(function (key) {
      var fragmentEntity = fragments[key];

      if (!fragmentEntity) {
        return;
      }

      if (isPartial(fragmentEntity)) {
        startTime = fragmentEntity.body.start - bufferPadding;
        endTime = fragmentEntity.body.end + bufferPadding;

        if (time >= startTime && time <= endTime) {
          // Use the fragment that has the most padding from start and end time
          timePadding = Math.min(time - startTime, endTime - time);

          if (bestOverlap <= timePadding) {
            bestFragment = fragmentEntity.body;
            bestOverlap = timePadding;
          }
        }
      }
    });
    return bestFragment;
  };

  _proto.getState = function getState(fragment) {
    var fragKey = getFragmentKey(fragment);
    var fragmentEntity = this.fragments[fragKey];

    if (fragmentEntity) {
      if (!fragmentEntity.buffered) {
        if (fragmentEntity.backtrack) {
          return FragmentState.BACKTRACKED;
        }

        return FragmentState.APPENDING;
      } else if (isPartial(fragmentEntity)) {
        return FragmentState.PARTIAL;
      } else {
        return FragmentState.OK;
      }
    }

    return FragmentState.NOT_LOADED;
  };

  _proto.backtrack = function backtrack(frag, data) {
    var fragKey = getFragmentKey(frag);
    var fragmentEntity = this.fragments[fragKey];

    if (!fragmentEntity || fragmentEntity.backtrack) {
      return null;
    }

    var backtrack = fragmentEntity.backtrack = data ? data : fragmentEntity.loaded;
    fragmentEntity.loaded = null;
    return backtrack;
  };

  _proto.getBacktrackData = function getBacktrackData(fragment) {
    var fragKey = getFragmentKey(fragment);
    var fragmentEntity = this.fragments[fragKey];

    if (fragmentEntity) {
      var _backtrack$payload;

      var backtrack = fragmentEntity.backtrack; // If data was already sent to Worker it is detached no longer available

      if (backtrack !== null && backtrack !== void 0 && (_backtrack$payload = backtrack.payload) !== null && _backtrack$payload !== void 0 && _backtrack$payload.byteLength) {
        return backtrack;
      } else {
        this.removeFragment(fragment);
      }
    }

    return null;
  };

  _proto.isTimeBuffered = function isTimeBuffered(startPTS, endPTS, timeRange) {
    var startTime;
    var endTime;

    for (var i = 0; i < timeRange.length; i++) {
      startTime = timeRange.start(i) - this.bufferPadding;
      endTime = timeRange.end(i) + this.bufferPadding;

      if (startPTS >= startTime && endPTS <= endTime) {
        return true;
      }

      if (endPTS <= startTime) {
        // No need to check the rest of the timeRange as it is in order
        return false;
      }
    }

    return false;
  };

  _proto.onFragLoaded = function onFragLoaded(event, data) {
    var frag = data.frag,
        part = data.part; // don't track initsegment (for which sn is not a number)
    // don't track frags used for bitrateTest, they're irrelevant.
    // don't track parts for memory efficiency

    if (frag.sn === 'initSegment' || frag.bitrateTest || part) {
      return;
    }

    var fragKey = getFragmentKey(frag);
    this.fragments[fragKey] = {
      body: frag,
      loaded: data,
      backtrack: null,
      buffered: false,
      range: Object.create(null)
    };
  };

  _proto.onBufferAppended = function onBufferAppended(event, data) {
    var _this3 = this;

    var frag = data.frag,
        part = data.part,
        timeRanges = data.timeRanges;

    if (frag.type === _types_loader__WEBPACK_IMPORTED_MODULE_1__["PlaylistLevelType"].MAIN) {
      this.activeFragment = frag;

      if (part) {
        var activeParts = this.activeParts;

        if (!activeParts) {
          this.activeParts = activeParts = [];
        }

        activeParts.push(part);
      } else {
        this.activeParts = null;
      }
    } // Store the latest timeRanges loaded in the buffer


    this.timeRanges = timeRanges;
    Object.keys(timeRanges).forEach(function (elementaryStream) {
      var timeRange = timeRanges[elementaryStream];

      _this3.detectEvictedFragments(elementaryStream, timeRange);

      if (!part) {
        for (var i = 0; i < timeRange.length; i++) {
          frag.appendedPTS = Math.max(timeRange.end(i), frag.appendedPTS || 0);
        }
      }
    });
  };

  _proto.onFragBuffered = function onFragBuffered(event, data) {
    this.detectPartialFragments(data);
  };

  _proto.hasFragment = function hasFragment(fragment) {
    var fragKey = getFragmentKey(fragment);
    return !!this.fragments[fragKey];
  };

  _proto.removeFragmentsInRange = function removeFragmentsInRange(start, end, playlistType) {
    var _this4 = this;

    Object.keys(this.fragments).forEach(function (key) {
      var fragmentEntity = _this4.fragments[key];

      if (!fragmentEntity) {
        return;
      }

      if (fragmentEntity.buffered) {
        var frag = fragmentEntity.body;

        if (frag.type === playlistType && frag.start < end && frag.end > start) {
          _this4.removeFragment(frag);
        }
      }
    });
  };

  _proto.removeFragment = function removeFragment(fragment) {
    var fragKey = getFragmentKey(fragment);
    fragment.stats.loaded = 0;
    fragment.clearElementaryStreamInfo();
    delete this.fragments[fragKey];
  };

  _proto.removeAllFragments = function removeAllFragments() {
    this.fragments = Object.create(null);
    this.activeFragment = null;
    this.activeParts = null;
  };

  return FragmentTracker;
}();

function isPartial(fragmentEntity) {
  var _fragmentEntity$range, _fragmentEntity$range2;

  return fragmentEntity.buffered && (((_fragmentEntity$range = fragmentEntity.range.video) === null || _fragmentEntity$range === void 0 ? void 0 : _fragmentEntity$range.partial) || ((_fragmentEntity$range2 = fragmentEntity.range.audio) === null || _fragmentEntity$range2 === void 0 ? void 0 : _fragmentEntity$range2.partial));
}

function getFragmentKey(fragment) {
  return fragment.type + "_" + fragment.level + "_" + fragment.urlId + "_" + fragment.sn;
}

/***/ }),

/***/ "./src/controller/gap-controller.ts":
/*!******************************************!*\
  !*** ./src/controller/gap-controller.ts ***!
  \******************************************/
/*! exports provided: STALL_MINIMUM_DURATION_MS, MAX_START_GAP_JUMP, SKIP_BUFFER_HOLE_STEP_SECONDS, SKIP_BUFFER_RANGE_START, default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "STALL_MINIMUM_DURATION_MS", function() { return STALL_MINIMUM_DURATION_MS; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "MAX_START_GAP_JUMP", function() { return MAX_START_GAP_JUMP; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "SKIP_BUFFER_HOLE_STEP_SECONDS", function() { return SKIP_BUFFER_HOLE_STEP_SECONDS; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "SKIP_BUFFER_RANGE_START", function() { return SKIP_BUFFER_RANGE_START; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "default", function() { return GapController; });
/* harmony import */ var _utils_buffer_helper__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../utils/buffer-helper */ "./src/utils/buffer-helper.ts");
/* harmony import */ var _errors__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../errors */ "./src/errors.ts");
/* harmony import */ var _events__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../events */ "./src/events.ts");
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../utils/logger */ "./src/utils/logger.ts");




var STALL_MINIMUM_DURATION_MS = 250;
var MAX_START_GAP_JUMP = 2.0;
var SKIP_BUFFER_HOLE_STEP_SECONDS = 0.1;
var SKIP_BUFFER_RANGE_START = 0.05;

var GapController = /*#__PURE__*/function () {
  function GapController(config, media, fragmentTracker, hls) {
    this.config = void 0;
    this.media = void 0;
    this.fragmentTracker = void 0;
    this.hls = void 0;
    this.nudgeRetry = 0;
    this.stallReported = false;
    this.stalled = null;
    this.moved = false;
    this.seeking = false;
    this.config = config;
    this.media = media;
    this.fragmentTracker = fragmentTracker;
    this.hls = hls;
  }

  var _proto = GapController.prototype;

  _proto.destroy = function destroy() {
    // @ts-ignore
    this.hls = this.fragmentTracker = this.media = null;
  }
  /**
   * Checks if the playhead is stuck within a gap, and if so, attempts to free it.
   * A gap is an unbuffered range between two buffered ranges (or the start and the first buffered range).
   *
   * @param {number} lastCurrentTime Previously read playhead position
   */
  ;

  _proto.poll = function poll(lastCurrentTime) {
    var config = this.config,
        media = this.media,
        stalled = this.stalled;
    var currentTime = media.currentTime,
        seeking = media.seeking;
    var seeked = this.seeking && !seeking;
    var beginSeek = !this.seeking && seeking;
    this.seeking = seeking; // The playhead is moving, no-op

    if (currentTime !== lastCurrentTime) {
      this.moved = true;

      if (stalled !== null) {
        // The playhead is now moving, but was previously stalled
        if (this.stallReported) {
          var _stalledDuration = self.performance.now() - stalled;

          _utils_logger__WEBPACK_IMPORTED_MODULE_3__["logger"].warn("playback not stuck anymore @" + currentTime + ", after " + Math.round(_stalledDuration) + "ms");
          this.stallReported = false;
        }

        this.stalled = null;
        this.nudgeRetry = 0;
      }

      return;
    } // Clear stalled state when beginning or finishing seeking so that we don't report stalls coming out of a seek


    if (beginSeek || seeked) {
      this.stalled = null;
    } // The playhead should not be moving


    if (media.paused || media.ended || media.playbackRate === 0 || !_utils_buffer_helper__WEBPACK_IMPORTED_MODULE_0__["BufferHelper"].getBuffered(media).length) {
      return;
    }

    var bufferInfo = _utils_buffer_helper__WEBPACK_IMPORTED_MODULE_0__["BufferHelper"].bufferInfo(media, currentTime, 0);
    var isBuffered = bufferInfo.len > 0;
    var nextStart = bufferInfo.nextStart || 0; // There is no playable buffer (seeked, waiting for buffer)

    if (!isBuffered && !nextStart) {
      return;
    }

    if (seeking) {
      // Waiting for seeking in a buffered range to complete
      var hasEnoughBuffer = bufferInfo.len > MAX_START_GAP_JUMP; // Next buffered range is too far ahead to jump to while still seeking

      var noBufferGap = !nextStart || nextStart - currentTime > MAX_START_GAP_JUMP && !this.fragmentTracker.getPartialFragment(currentTime);

      if (hasEnoughBuffer || noBufferGap) {
        return;
      } // Reset moved state when seeking to a point in or before a gap


      this.moved = false;
    } // Skip start gaps if we haven't played, but the last poll detected the start of a stall
    // The addition poll gives the browser a chance to jump the gap for us


    if (!this.moved && this.stalled !== null) {
      var _level$details;

      // Jump start gaps within jump threshold
      var startJump = Math.max(nextStart, bufferInfo.start || 0) - currentTime; // When joining a live stream with audio tracks, account for live playlist window sliding by allowing
      // a larger jump over start gaps caused by the audio-stream-controller buffering a start fragment
      // that begins over 1 target duration after the video start position.

      var level = this.hls.levels ? this.hls.levels[this.hls.currentLevel] : null;
      var isLive = level === null || level === void 0 ? void 0 : (_level$details = level.details) === null || _level$details === void 0 ? void 0 : _level$details.live;
      var maxStartGapJump = isLive ? level.details.targetduration * 2 : MAX_START_GAP_JUMP;

      if (startJump > 0 && startJump <= maxStartGapJump) {
        this._trySkipBufferHole(null);

        return;
      }
    } // Start tracking stall time


    var tnow = self.performance.now();

    if (stalled === null) {
      this.stalled = tnow;
      return;
    }

    var stalledDuration = tnow - stalled;

    if (!seeking && stalledDuration >= STALL_MINIMUM_DURATION_MS) {
      // Report stalling after trying to fix
      this._reportStall(bufferInfo.len);
    }

    var bufferedWithHoles = _utils_buffer_helper__WEBPACK_IMPORTED_MODULE_0__["BufferHelper"].bufferInfo(media, currentTime, config.maxBufferHole);

    this._tryFixBufferStall(bufferedWithHoles, stalledDuration);
  }
  /**
   * Detects and attempts to fix known buffer stalling issues.
   * @param bufferInfo - The properties of the current buffer.
   * @param stalledDurationMs - The amount of time Hls.js has been stalling for.
   * @private
   */
  ;

  _proto._tryFixBufferStall = function _tryFixBufferStall(bufferInfo, stalledDurationMs) {
    var config = this.config,
        fragmentTracker = this.fragmentTracker,
        media = this.media;
    var currentTime = media.currentTime;
    var partial = fragmentTracker.getPartialFragment(currentTime);

    if (partial) {
      // Try to skip over the buffer hole caused by a partial fragment
      // This method isn't limited by the size of the gap between buffered ranges
      var targetTime = this._trySkipBufferHole(partial); // we return here in this case, meaning
      // the branch below only executes when we don't handle a partial fragment


      if (targetTime) {
        return;
      }
    } // if we haven't had to skip over a buffer hole of a partial fragment
    // we may just have to "nudge" the playlist as the browser decoding/rendering engine
    // needs to cross some sort of threshold covering all source-buffers content
    // to start playing properly.


    if (bufferInfo.len > config.maxBufferHole && stalledDurationMs > config.highBufferWatchdogPeriod * 1000) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_3__["logger"].warn('Trying to nudge playhead over buffer-hole'); // Try to nudge currentTime over a buffer hole if we've been stalling for the configured amount of seconds
      // We only try to jump the hole if it's under the configured size
      // Reset stalled so to rearm watchdog timer

      this.stalled = null;

      this._tryNudgeBuffer();
    }
  }
  /**
   * Triggers a BUFFER_STALLED_ERROR event, but only once per stall period.
   * @param bufferLen - The playhead distance from the end of the current buffer segment.
   * @private
   */
  ;

  _proto._reportStall = function _reportStall(bufferLen) {
    var hls = this.hls,
        media = this.media,
        stallReported = this.stallReported;

    if (!stallReported) {
      // Report stalled error once
      this.stallReported = true;
      _utils_logger__WEBPACK_IMPORTED_MODULE_3__["logger"].warn("Playback stalling at @" + media.currentTime + " due to low buffer (buffer=" + bufferLen + ")");
      hls.trigger(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].ERROR, {
        type: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorTypes"].MEDIA_ERROR,
        details: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorDetails"].BUFFER_STALLED_ERROR,
        fatal: false,
        buffer: bufferLen
      });
    }
  }
  /**
   * Attempts to fix buffer stalls by jumping over known gaps caused by partial fragments
   * @param partial - The partial fragment found at the current time (where playback is stalling).
   * @private
   */
  ;

  _proto._trySkipBufferHole = function _trySkipBufferHole(partial) {
    var config = this.config,
        hls = this.hls,
        media = this.media;
    var currentTime = media.currentTime;
    var lastEndTime = 0; // Check if currentTime is between unbuffered regions of partial fragments

    var buffered = _utils_buffer_helper__WEBPACK_IMPORTED_MODULE_0__["BufferHelper"].getBuffered(media);

    for (var i = 0; i < buffered.length; i++) {
      var startTime = buffered.start(i);

      if (currentTime + config.maxBufferHole >= lastEndTime && currentTime < startTime) {
        var targetTime = Math.max(startTime + SKIP_BUFFER_RANGE_START, media.currentTime + SKIP_BUFFER_HOLE_STEP_SECONDS);
        _utils_logger__WEBPACK_IMPORTED_MODULE_3__["logger"].warn("skipping hole, adjusting currentTime from " + currentTime + " to " + targetTime);
        this.moved = true;
        this.stalled = null;
        media.currentTime = targetTime;

        if (partial) {
          hls.trigger(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].ERROR, {
            type: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorTypes"].MEDIA_ERROR,
            details: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorDetails"].BUFFER_SEEK_OVER_HOLE,
            fatal: false,
            reason: "fragment loaded with buffer holes, seeking from " + currentTime + " to " + targetTime,
            frag: partial
          });
        }

        return targetTime;
      }

      lastEndTime = buffered.end(i);
    }

    return 0;
  }
  /**
   * Attempts to fix buffer stalls by advancing the mediaElement's current time by a small amount.
   * @private
   */
  ;

  _proto._tryNudgeBuffer = function _tryNudgeBuffer() {
    var config = this.config,
        hls = this.hls,
        media = this.media;
    var currentTime = media.currentTime;
    var nudgeRetry = (this.nudgeRetry || 0) + 1;
    this.nudgeRetry = nudgeRetry;

    if (nudgeRetry < config.nudgeMaxRetry) {
      var targetTime = currentTime + nudgeRetry * config.nudgeOffset; // playback stalled in buffered area ... let's nudge currentTime to try to overcome this

      _utils_logger__WEBPACK_IMPORTED_MODULE_3__["logger"].warn("Nudging 'currentTime' from " + currentTime + " to " + targetTime);
      media.currentTime = targetTime;
      hls.trigger(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].ERROR, {
        type: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorTypes"].MEDIA_ERROR,
        details: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorDetails"].BUFFER_NUDGE_ON_STALL,
        fatal: false
      });
    } else {
      _utils_logger__WEBPACK_IMPORTED_MODULE_3__["logger"].error("Playhead still not moving while enough data buffered @" + currentTime + " after " + config.nudgeMaxRetry + " nudges");
      hls.trigger(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].ERROR, {
        type: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorTypes"].MEDIA_ERROR,
        details: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorDetails"].BUFFER_STALLED_ERROR,
        fatal: true
      });
    }
  };

  return GapController;
}();



/***/ }),

/***/ "./src/controller/id3-track-controller.ts":
/*!************************************************!*\
  !*** ./src/controller/id3-track-controller.ts ***!
  \************************************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony import */ var _events__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../events */ "./src/events.ts");
/* harmony import */ var _utils_texttrack_utils__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../utils/texttrack-utils */ "./src/utils/texttrack-utils.ts");
/* harmony import */ var _demux_id3__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../demux/id3 */ "./src/demux/id3.ts");



var MIN_CUE_DURATION = 0.25;

var ID3TrackController = /*#__PURE__*/function () {
  function ID3TrackController(hls) {
    this.hls = void 0;
    this.id3Track = null;
    this.media = null;
    this.hls = hls;

    this._registerListeners();
  }

  var _proto = ID3TrackController.prototype;

  _proto.destroy = function destroy() {
    this._unregisterListeners();
  };

  _proto._registerListeners = function _registerListeners() {
    var hls = this.hls;
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MEDIA_ATTACHED, this.onMediaAttached, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MEDIA_DETACHING, this.onMediaDetaching, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].FRAG_PARSING_METADATA, this.onFragParsingMetadata, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].BUFFER_FLUSHING, this.onBufferFlushing, this);
  };

  _proto._unregisterListeners = function _unregisterListeners() {
    var hls = this.hls;
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MEDIA_ATTACHED, this.onMediaAttached, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MEDIA_DETACHING, this.onMediaDetaching, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].FRAG_PARSING_METADATA, this.onFragParsingMetadata, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].BUFFER_FLUSHING, this.onBufferFlushing, this);
  } // Add ID3 metatadata text track.
  ;

  _proto.onMediaAttached = function onMediaAttached(event, data) {
    this.media = data.media;
  };

  _proto.onMediaDetaching = function onMediaDetaching() {
    if (!this.id3Track) {
      return;
    }

    Object(_utils_texttrack_utils__WEBPACK_IMPORTED_MODULE_1__["clearCurrentCues"])(this.id3Track);
    this.id3Track = null;
    this.media = null;
  };

  _proto.getID3Track = function getID3Track(textTracks) {
    if (!this.media) {
      return;
    }

    for (var i = 0; i < textTracks.length; i++) {
      var textTrack = textTracks[i];

      if (textTrack.kind === 'metadata' && textTrack.label === 'id3') {
        // send 'addtrack' when reusing the textTrack for metadata,
        // same as what we do for captions
        Object(_utils_texttrack_utils__WEBPACK_IMPORTED_MODULE_1__["sendAddTrackEvent"])(textTrack, this.media);
        return textTrack;
      }
    }

    return this.media.addTextTrack('metadata', 'id3');
  };

  _proto.onFragParsingMetadata = function onFragParsingMetadata(event, data) {
    if (!this.media) {
      return;
    }

    var fragment = data.frag;
    var samples = data.samples; // create track dynamically

    if (!this.id3Track) {
      this.id3Track = this.getID3Track(this.media.textTracks);
      this.id3Track.mode = 'hidden';
    } // Attempt to recreate Safari functionality by creating
    // WebKitDataCue objects when available and store the decoded
    // ID3 data in the value property of the cue


    var Cue = self.WebKitDataCue || self.VTTCue || self.TextTrackCue;

    for (var i = 0; i < samples.length; i++) {
      var frames = _demux_id3__WEBPACK_IMPORTED_MODULE_2__["getID3Frames"](samples[i].data);

      if (frames) {
        var startTime = samples[i].pts;
        var endTime = i < samples.length - 1 ? samples[i + 1].pts : fragment.end;
        var timeDiff = endTime - startTime;

        if (timeDiff <= 0) {
          endTime = startTime + MIN_CUE_DURATION;
        }

        for (var j = 0; j < frames.length; j++) {
          var frame = frames[j]; // Safari doesn't put the timestamp frame in the TextTrack

          if (!_demux_id3__WEBPACK_IMPORTED_MODULE_2__["isTimeStampFrame"](frame)) {
            var cue = new Cue(startTime, endTime, '');
            cue.value = frame;
            this.id3Track.addCue(cue);
          }
        }
      }
    }
  };

  _proto.onBufferFlushing = function onBufferFlushing(event, _ref) {
    var startOffset = _ref.startOffset,
        endOffset = _ref.endOffset,
        type = _ref.type;

    if (!type || type === 'audio') {
      // id3 cues come from parsed audio only remove cues when audio buffer is cleared
      var id3Track = this.id3Track;

      if (id3Track) {
        Object(_utils_texttrack_utils__WEBPACK_IMPORTED_MODULE_1__["removeCuesInRange"])(id3Track, startOffset, endOffset);
      }
    }
  };

  return ID3TrackController;
}();

/* harmony default export */ __webpack_exports__["default"] = (ID3TrackController);

/***/ }),

/***/ "./src/controller/latency-controller.ts":
/*!**********************************************!*\
  !*** ./src/controller/latency-controller.ts ***!
  \**********************************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "default", function() { return LatencyController; });
/* harmony import */ var _errors__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../errors */ "./src/errors.ts");
/* harmony import */ var _events__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../events */ "./src/events.ts");
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../utils/logger */ "./src/utils/logger.ts");
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }





var LatencyController = /*#__PURE__*/function () {
  function LatencyController(hls) {
    var _this = this;

    this.hls = void 0;
    this.config = void 0;
    this.media = null;
    this.levelDetails = null;
    this.currentTime = 0;
    this.stallCount = 0;
    this._latency = null;

    this.timeupdateHandler = function () {
      return _this.timeupdate();
    };

    this.hls = hls;
    this.config = hls.config;
    this.registerListeners();
  }

  var _proto = LatencyController.prototype;

  _proto.destroy = function destroy() {
    this.unregisterListeners();
    this.onMediaDetaching();
    this.levelDetails = null; // @ts-ignore

    this.hls = this.timeupdateHandler = null;
  };

  _proto.registerListeners = function registerListeners() {
    this.hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].MEDIA_ATTACHED, this.onMediaAttached, this);
    this.hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].MEDIA_DETACHING, this.onMediaDetaching, this);
    this.hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].MANIFEST_LOADING, this.onManifestLoading, this);
    this.hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].LEVEL_UPDATED, this.onLevelUpdated, this);
    this.hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].ERROR, this.onError, this);
  };

  _proto.unregisterListeners = function unregisterListeners() {
    this.hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].MEDIA_ATTACHED, this.onMediaAttached);
    this.hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].MEDIA_DETACHING, this.onMediaDetaching);
    this.hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].MANIFEST_LOADING, this.onManifestLoading);
    this.hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].LEVEL_UPDATED, this.onLevelUpdated);
    this.hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].ERROR, this.onError);
  };

  _proto.onMediaAttached = function onMediaAttached(event, data) {
    this.media = data.media;
    this.media.addEventListener('timeupdate', this.timeupdateHandler);
  };

  _proto.onMediaDetaching = function onMediaDetaching() {
    if (this.media) {
      this.media.removeEventListener('timeupdate', this.timeupdateHandler);
      this.media = null;
    }
  };

  _proto.onManifestLoading = function onManifestLoading() {
    this.levelDetails = null;
    this._latency = null;
    this.stallCount = 0;
  };

  _proto.onLevelUpdated = function onLevelUpdated(event, _ref) {
    var details = _ref.details;
    this.levelDetails = details;

    if (details.advanced) {
      this.timeupdate();
    }

    if (!details.live && this.media) {
      this.media.removeEventListener('timeupdate', this.timeupdateHandler);
    }
  };

  _proto.onError = function onError(event, data) {
    if (data.details !== _errors__WEBPACK_IMPORTED_MODULE_0__["ErrorDetails"].BUFFER_STALLED_ERROR) {
      return;
    }

    this.stallCount++;
    _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].warn('[playback-rate-controller]: Stall detected, adjusting target latency');
  };

  _proto.timeupdate = function timeupdate() {
    var media = this.media,
        levelDetails = this.levelDetails;

    if (!media || !levelDetails) {
      return;
    }

    this.currentTime = media.currentTime;
    var latency = this.computeLatency();

    if (latency === null) {
      return;
    }

    this._latency = latency; // Adapt playbackRate to meet target latency in low-latency mode

    var _this$config = this.config,
        lowLatencyMode = _this$config.lowLatencyMode,
        maxLiveSyncPlaybackRate = _this$config.maxLiveSyncPlaybackRate;

    if (!lowLatencyMode || maxLiveSyncPlaybackRate === 1) {
      return;
    }

    var targetLatency = this.targetLatency;

    if (targetLatency === null) {
      return;
    }

    var distanceFromTarget = latency - targetLatency; // Only adjust playbackRate when within one target duration of targetLatency
    // and more than one second from under-buffering.
    // Playback further than one target duration from target can be considered DVR playback.

    var liveMinLatencyDuration = Math.min(this.maxLatency, targetLatency + levelDetails.targetduration);
    var inLiveRange = distanceFromTarget < liveMinLatencyDuration;

    if (levelDetails.live && inLiveRange && distanceFromTarget > 0.05 && this.forwardBufferLength > 1) {
      var max = Math.min(2, Math.max(1.0, maxLiveSyncPlaybackRate));
      var rate = Math.round(2 / (1 + Math.exp(-0.75 * distanceFromTarget - this.edgeStalled)) * 20) / 20;
      media.playbackRate = Math.min(max, Math.max(1, rate));
    } else if (media.playbackRate !== 1 && media.playbackRate !== 0) {
      media.playbackRate = 1;
    }
  };

  _proto.estimateLiveEdge = function estimateLiveEdge() {
    var levelDetails = this.levelDetails;

    if (levelDetails === null) {
      return null;
    }

    return levelDetails.edge + levelDetails.age;
  };

  _proto.computeLatency = function computeLatency() {
    var liveEdge = this.estimateLiveEdge();

    if (liveEdge === null) {
      return null;
    }

    return liveEdge - this.currentTime;
  };

  _createClass(LatencyController, [{
    key: "latency",
    get: function get() {
      return this._latency || 0;
    }
  }, {
    key: "maxLatency",
    get: function get() {
      var config = this.config,
          levelDetails = this.levelDetails;

      if (config.liveMaxLatencyDuration !== undefined) {
        return config.liveMaxLatencyDuration;
      }

      return levelDetails ? config.liveMaxLatencyDurationCount * levelDetails.targetduration : 0;
    }
  }, {
    key: "targetLatency",
    get: function get() {
      var levelDetails = this.levelDetails;

      if (levelDetails === null) {
        return null;
      }

      var holdBack = levelDetails.holdBack,
          partHoldBack = levelDetails.partHoldBack,
          targetduration = levelDetails.targetduration;
      var _this$config2 = this.config,
          liveSyncDuration = _this$config2.liveSyncDuration,
          liveSyncDurationCount = _this$config2.liveSyncDurationCount,
          lowLatencyMode = _this$config2.lowLatencyMode;
      var userConfig = this.hls.userConfig;
      var targetLatency = lowLatencyMode ? partHoldBack || holdBack : holdBack;

      if (userConfig.liveSyncDuration || userConfig.liveSyncDurationCount || targetLatency === 0) {
        targetLatency = liveSyncDuration !== undefined ? liveSyncDuration : liveSyncDurationCount * targetduration;
      }

      var maxLiveSyncOnStallIncrease = targetduration;
      var liveSyncOnStallIncrease = 1.0;
      return targetLatency + Math.min(this.stallCount * liveSyncOnStallIncrease, maxLiveSyncOnStallIncrease);
    }
  }, {
    key: "liveSyncPosition",
    get: function get() {
      var liveEdge = this.estimateLiveEdge();
      var targetLatency = this.targetLatency;
      var levelDetails = this.levelDetails;

      if (liveEdge === null || targetLatency === null || levelDetails === null) {
        return null;
      }

      var edge = levelDetails.edge;
      var syncPosition = liveEdge - targetLatency - this.edgeStalled;
      var min = edge - levelDetails.totalduration;
      var max = edge - (this.config.lowLatencyMode && levelDetails.partTarget || levelDetails.targetduration);
      return Math.min(Math.max(min, syncPosition), max);
    }
  }, {
    key: "drift",
    get: function get() {
      var levelDetails = this.levelDetails;

      if (levelDetails === null) {
        return 1;
      }

      return levelDetails.drift;
    }
  }, {
    key: "edgeStalled",
    get: function get() {
      var levelDetails = this.levelDetails;

      if (levelDetails === null) {
        return 0;
      }

      var maxLevelUpdateAge = (this.config.lowLatencyMode && levelDetails.partTarget || levelDetails.targetduration) * 3;
      return Math.max(levelDetails.age - maxLevelUpdateAge, 0);
    }
  }, {
    key: "forwardBufferLength",
    get: function get() {
      var media = this.media,
          levelDetails = this.levelDetails;

      if (!media || !levelDetails) {
        return 0;
      }

      var bufferedRanges = media.buffered.length;
      return bufferedRanges ? media.buffered.end(bufferedRanges - 1) : levelDetails.edge - this.currentTime;
    }
  }]);

  return LatencyController;
}();



/***/ }),

/***/ "./src/controller/level-controller.ts":
/*!********************************************!*\
  !*** ./src/controller/level-controller.ts ***!
  \********************************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "default", function() { return LevelController; });
/* harmony import */ var _types_level__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../types/level */ "./src/types/level.ts");
/* harmony import */ var _events__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../events */ "./src/events.ts");
/* harmony import */ var _errors__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../errors */ "./src/errors.ts");
/* harmony import */ var _utils_codecs__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../utils/codecs */ "./src/utils/codecs.ts");
/* harmony import */ var _level_helper__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ./level-helper */ "./src/controller/level-helper.ts");
/* harmony import */ var _base_playlist_controller__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ./base-playlist-controller */ "./src/controller/base-playlist-controller.ts");
/* harmony import */ var _types_loader__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ../types/loader */ "./src/types/loader.ts");
function _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

/*
 * Level Controller
 */







var chromeOrFirefox = /chrome|firefox/.test(navigator.userAgent.toLowerCase());

var LevelController = /*#__PURE__*/function (_BasePlaylistControll) {
  _inheritsLoose(LevelController, _BasePlaylistControll);

  function LevelController(hls) {
    var _this;

    _this = _BasePlaylistControll.call(this, hls, '[level-controller]') || this;
    _this._levels = [];
    _this._firstLevel = -1;
    _this._startLevel = void 0;
    _this.currentLevelIndex = -1;
    _this.manualLevelIndex = -1;
    _this.onParsedComplete = void 0;

    _this._registerListeners();

    return _this;
  }

  var _proto = LevelController.prototype;

  _proto._registerListeners = function _registerListeners() {
    var hls = this.hls;
    hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].MANIFEST_LOADED, this.onManifestLoaded, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].LEVEL_LOADED, this.onLevelLoaded, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].AUDIO_TRACK_SWITCHED, this.onAudioTrackSwitched, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].FRAG_LOADED, this.onFragLoaded, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].ERROR, this.onError, this);
  };

  _proto._unregisterListeners = function _unregisterListeners() {
    var hls = this.hls;
    hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].MANIFEST_LOADED, this.onManifestLoaded, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].LEVEL_LOADED, this.onLevelLoaded, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].AUDIO_TRACK_SWITCHED, this.onAudioTrackSwitched, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].FRAG_LOADED, this.onFragLoaded, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].ERROR, this.onError, this);
  };

  _proto.destroy = function destroy() {
    this._unregisterListeners();

    this.manualLevelIndex = -1;
    this._levels.length = 0;

    _BasePlaylistControll.prototype.destroy.call(this);
  };

  _proto.startLoad = function startLoad() {
    var levels = this._levels; // clean up live level details to force reload them, and reset load errors

    levels.forEach(function (level) {
      level.loadError = 0;
    });

    _BasePlaylistControll.prototype.startLoad.call(this);
  };

  _proto.onManifestLoaded = function onManifestLoaded(event, data) {
    var levels = [];
    var audioTracks = [];
    var subtitleTracks = [];
    var bitrateStart;
    var levelSet = {};
    var levelFromSet;
    var resolutionFound = false;
    var videoCodecFound = false;
    var audioCodecFound = false; // regroup redundant levels together

    data.levels.forEach(function (levelParsed) {
      var attributes = levelParsed.attrs;
      resolutionFound = resolutionFound || !!(levelParsed.width && levelParsed.height);
      videoCodecFound = videoCodecFound || !!levelParsed.videoCodec;
      audioCodecFound = audioCodecFound || !!levelParsed.audioCodec; // erase audio codec info if browser does not support mp4a.40.34.
      // demuxer will autodetect codec and fallback to mpeg/audio

      if (chromeOrFirefox && levelParsed.audioCodec && levelParsed.audioCodec.indexOf('mp4a.40.34') !== -1) {
        levelParsed.audioCodec = undefined;
      }

      var levelKey = levelParsed.bitrate + "-" + levelParsed.attrs.RESOLUTION + "-" + levelParsed.attrs.CODECS;
      levelFromSet = levelSet[levelKey];

      if (!levelFromSet) {
        levelFromSet = new _types_level__WEBPACK_IMPORTED_MODULE_0__["Level"](levelParsed);
        levelSet[levelKey] = levelFromSet;
        levels.push(levelFromSet);
      } else {
        levelFromSet.url.push(levelParsed.url);
      }

      if (attributes) {
        if (attributes.AUDIO) {
          Object(_level_helper__WEBPACK_IMPORTED_MODULE_4__["addGroupId"])(levelFromSet, 'audio', attributes.AUDIO);
        }

        if (attributes.SUBTITLES) {
          Object(_level_helper__WEBPACK_IMPORTED_MODULE_4__["addGroupId"])(levelFromSet, 'text', attributes.SUBTITLES);
        }
      }
    }); // remove audio-only level if we also have levels with video codecs or RESOLUTION signalled

    if ((resolutionFound || videoCodecFound) && audioCodecFound) {
      levels = levels.filter(function (_ref) {
        var videoCodec = _ref.videoCodec,
            width = _ref.width,
            height = _ref.height;
        return !!videoCodec || !!(width && height);
      });
    } // only keep levels with supported audio/video codecs


    levels = levels.filter(function (_ref2) {
      var audioCodec = _ref2.audioCodec,
          videoCodec = _ref2.videoCodec;
      return (!audioCodec || Object(_utils_codecs__WEBPACK_IMPORTED_MODULE_3__["isCodecSupportedInMp4"])(audioCodec, 'audio')) && (!videoCodec || Object(_utils_codecs__WEBPACK_IMPORTED_MODULE_3__["isCodecSupportedInMp4"])(videoCodec, 'video'));
    });

    if (data.audioTracks) {
      audioTracks = data.audioTracks.filter(function (track) {
        return !track.audioCodec || Object(_utils_codecs__WEBPACK_IMPORTED_MODULE_3__["isCodecSupportedInMp4"])(track.audioCodec, 'audio');
      }); // Assign ids after filtering as array indices by group-id

      Object(_level_helper__WEBPACK_IMPORTED_MODULE_4__["assignTrackIdsByGroup"])(audioTracks);
    }

    if (data.subtitles) {
      subtitleTracks = data.subtitles;
      Object(_level_helper__WEBPACK_IMPORTED_MODULE_4__["assignTrackIdsByGroup"])(subtitleTracks);
    }

    if (levels.length > 0) {
      // start bitrate is the first bitrate of the manifest
      bitrateStart = levels[0].bitrate; // sort level on bitrate

      levels.sort(function (a, b) {
        return a.bitrate - b.bitrate;
      });
      this._levels = levels; // find index of first level in sorted levels

      for (var i = 0; i < levels.length; i++) {
        if (levels[i].bitrate === bitrateStart) {
          this._firstLevel = i;
          this.log("manifest loaded, " + levels.length + " level(s) found, first bitrate: " + bitrateStart);
          break;
        }
      } // Audio is only alternate if manifest include a URI along with the audio group tag,
      // and this is not an audio-only stream where levels contain audio-only


      var audioOnly = audioCodecFound && !videoCodecFound;
      var edata = {
        levels: levels,
        audioTracks: audioTracks,
        subtitleTracks: subtitleTracks,
        firstLevel: this._firstLevel,
        stats: data.stats,
        audio: audioCodecFound,
        video: videoCodecFound,
        altAudio: !audioOnly && audioTracks.some(function (t) {
          return !!t.url;
        })
      };
      this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].MANIFEST_PARSED, edata); // Initiate loading after all controllers have received MANIFEST_PARSED

      if (this.hls.config.autoStartLoad || this.hls.forceStartLoad) {
        this.hls.startLoad(this.hls.config.startPosition);
      }
    } else {
      this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].ERROR, {
        type: _errors__WEBPACK_IMPORTED_MODULE_2__["ErrorTypes"].MEDIA_ERROR,
        details: _errors__WEBPACK_IMPORTED_MODULE_2__["ErrorDetails"].MANIFEST_INCOMPATIBLE_CODECS_ERROR,
        fatal: true,
        url: data.url,
        reason: 'no level with compatible codecs found in manifest'
      });
    }
  };

  _proto.onError = function onError(event, data) {
    _BasePlaylistControll.prototype.onError.call(this, event, data);

    if (data.fatal) {
      return;
    } // Switch to redundant level when track fails to load


    var context = data.context;
    var level = this._levels[this.currentLevelIndex];

    if (context && (context.type === _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistContextType"].AUDIO_TRACK && level.audioGroupIds && context.groupId === level.audioGroupIds[level.urlId] || context.type === _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistContextType"].SUBTITLE_TRACK && level.textGroupIds && context.groupId === level.textGroupIds[level.urlId])) {
      this.redundantFailover(this.currentLevelIndex);
      return;
    }

    var levelError = false;
    var levelSwitch = true;
    var levelIndex; // try to recover not fatal errors

    switch (data.details) {
      case _errors__WEBPACK_IMPORTED_MODULE_2__["ErrorDetails"].FRAG_LOAD_ERROR:
      case _errors__WEBPACK_IMPORTED_MODULE_2__["ErrorDetails"].FRAG_LOAD_TIMEOUT:
      case _errors__WEBPACK_IMPORTED_MODULE_2__["ErrorDetails"].KEY_LOAD_ERROR:
      case _errors__WEBPACK_IMPORTED_MODULE_2__["ErrorDetails"].KEY_LOAD_TIMEOUT:
        if (data.frag) {
          var _level = this._levels[data.frag.level]; // Set levelIndex when we're out of fragment retries

          if (_level) {
            _level.fragmentError++;

            if (_level.fragmentError > this.hls.config.fragLoadingMaxRetry) {
              levelIndex = data.frag.level;
            }
          } else {
            levelIndex = data.frag.level;
          }
        }

        break;

      case _errors__WEBPACK_IMPORTED_MODULE_2__["ErrorDetails"].LEVEL_LOAD_ERROR:
      case _errors__WEBPACK_IMPORTED_MODULE_2__["ErrorDetails"].LEVEL_LOAD_TIMEOUT:
        // Do not perform level switch if an error occurred using delivery directives
        // Attempt to reload level without directives first
        if (context) {
          if (context.deliveryDirectives) {
            levelSwitch = false;
          }

          levelIndex = context.level;
        }

        levelError = true;
        break;

      case _errors__WEBPACK_IMPORTED_MODULE_2__["ErrorDetails"].REMUX_ALLOC_ERROR:
        levelIndex = data.level;
        levelError = true;
        break;
    }

    if (levelIndex !== undefined) {
      this.recoverLevel(data, levelIndex, levelError, levelSwitch);
    }
  }
  /**
   * Switch to a redundant stream if any available.
   * If redundant stream is not available, emergency switch down if ABR mode is enabled.
   */
  ;

  _proto.recoverLevel = function recoverLevel(errorEvent, levelIndex, levelError, levelSwitch) {
    var errorDetails = errorEvent.details;
    var level = this._levels[levelIndex];
    level.loadError++;

    if (levelError) {
      var retrying = this.retryLoadingOrFail(errorEvent);

      if (retrying) {
        // boolean used to inform stream controller not to switch back to IDLE on non fatal error
        errorEvent.levelRetry = true;
      } else {
        this.currentLevelIndex = -1;
        return;
      }
    }

    if (levelSwitch) {
      var redundantLevels = level.url.length; // Try redundant fail-over until level.loadError reaches redundantLevels

      if (redundantLevels > 1 && level.loadError < redundantLevels) {
        errorEvent.levelRetry = true;
        this.redundantFailover(levelIndex);
      } else if (this.manualLevelIndex === -1) {
        // Search for available level in auto level selection mode, cycling from highest to lowest bitrate
        var nextLevel = levelIndex === 0 ? this._levels.length - 1 : levelIndex - 1;

        if (this.currentLevelIndex !== nextLevel && this._levels[nextLevel].loadError === 0) {
          this.warn(errorDetails + ": switch to " + nextLevel);
          errorEvent.levelRetry = true;
          this.hls.nextAutoLevel = nextLevel;
        }
      }
    }
  };

  _proto.redundantFailover = function redundantFailover(levelIndex) {
    var level = this._levels[levelIndex];
    var redundantLevels = level.url.length;

    if (redundantLevels > 1) {
      // Update the url id of all levels so that we stay on the same set of variants when level switching
      var newUrlId = (level.urlId + 1) % redundantLevels;
      this.warn("Switching to redundant URL-id " + newUrlId);

      this._levels.forEach(function (level) {
        level.urlId = newUrlId;
      });

      this.level = levelIndex;
    }
  } // reset errors on the successful load of a fragment
  ;

  _proto.onFragLoaded = function onFragLoaded(event, _ref3) {
    var frag = _ref3.frag;

    if (frag !== undefined && frag.type === _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistLevelType"].MAIN) {
      var level = this._levels[frag.level];

      if (level !== undefined) {
        level.fragmentError = 0;
        level.loadError = 0;
      }
    }
  };

  _proto.onLevelLoaded = function onLevelLoaded(event, data) {
    var _data$deliveryDirecti2;

    var level = data.level,
        details = data.details;
    var curLevel = this._levels[level];

    if (!curLevel) {
      var _data$deliveryDirecti;

      this.warn("Invalid level index " + level);

      if ((_data$deliveryDirecti = data.deliveryDirectives) !== null && _data$deliveryDirecti !== void 0 && _data$deliveryDirecti.skip) {
        details.deltaUpdateFailed = true;
      }

      return;
    } // only process level loaded events matching with expected level


    if (level === this.currentLevelIndex) {
      // reset level load error counter on successful level loaded only if there is no issues with fragments
      if (curLevel.fragmentError === 0) {
        curLevel.loadError = 0;
        this.retryCount = 0;
      }

      this.playlistLoaded(level, data, curLevel.details);
    } else if ((_data$deliveryDirecti2 = data.deliveryDirectives) !== null && _data$deliveryDirecti2 !== void 0 && _data$deliveryDirecti2.skip) {
      // received a delta playlist update that cannot be merged
      details.deltaUpdateFailed = true;
    }
  };

  _proto.onAudioTrackSwitched = function onAudioTrackSwitched(event, data) {
    var currentLevel = this.hls.levels[this.currentLevelIndex];

    if (!currentLevel) {
      return;
    }

    if (currentLevel.audioGroupIds) {
      var urlId = -1;
      var audioGroupId = this.hls.audioTracks[data.id].groupId;

      for (var i = 0; i < currentLevel.audioGroupIds.length; i++) {
        if (currentLevel.audioGroupIds[i] === audioGroupId) {
          urlId = i;
          break;
        }
      }

      if (urlId !== currentLevel.urlId) {
        currentLevel.urlId = urlId;
        this.startLoad();
      }
    }
  };

  _proto.loadPlaylist = function loadPlaylist(hlsUrlParameters) {
    var level = this.currentLevelIndex;
    var currentLevel = this._levels[level];

    if (this.canLoad && currentLevel && currentLevel.url.length > 0) {
      var id = currentLevel.urlId;
      var url = currentLevel.url[id];

      if (hlsUrlParameters) {
        try {
          url = hlsUrlParameters.addDirectives(url);
        } catch (error) {
          this.warn("Could not construct new URL with HLS Delivery Directives: " + error);
        }
      }

      this.log("Attempt loading level index " + level + (hlsUrlParameters ? ' at sn ' + hlsUrlParameters.msn + ' part ' + hlsUrlParameters.part : '') + " with URL-id " + id + " " + url); // console.log('Current audio track group ID:', this.hls.audioTracks[this.hls.audioTrack].groupId);
      // console.log('New video quality level audio group id:', levelObject.attrs.AUDIO, level);

      this.clearTimer();
      this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].LEVEL_LOADING, {
        url: url,
        level: level,
        id: id,
        deliveryDirectives: hlsUrlParameters || null
      });
    }
  };

  _proto.removeLevel = function removeLevel(levelIndex, urlId) {
    var filterLevelAndGroupByIdIndex = function filterLevelAndGroupByIdIndex(url, id) {
      return id !== urlId;
    };

    var levels = this._levels.filter(function (level, index) {
      if (index !== levelIndex) {
        return true;
      }

      if (level.url.length > 1 && urlId !== undefined) {
        level.url = level.url.filter(filterLevelAndGroupByIdIndex);

        if (level.audioGroupIds) {
          level.audioGroupIds = level.audioGroupIds.filter(filterLevelAndGroupByIdIndex);
        }

        if (level.textGroupIds) {
          level.textGroupIds = level.textGroupIds.filter(filterLevelAndGroupByIdIndex);
        }

        level.urlId = 0;
        return true;
      }

      return false;
    }).map(function (level, index) {
      var details = level.details;

      if (details !== null && details !== void 0 && details.fragments) {
        details.fragments.forEach(function (fragment) {
          fragment.level = index;
        });
      }

      return level;
    });

    this._levels = levels;
    this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].LEVELS_UPDATED, {
      levels: levels
    });
  };

  _createClass(LevelController, [{
    key: "levels",
    get: function get() {
      if (this._levels.length === 0) {
        return null;
      }

      return this._levels;
    }
  }, {
    key: "level",
    get: function get() {
      return this.currentLevelIndex;
    },
    set: function set(newLevel) {
      var _levels$newLevel;

      var levels = this._levels;

      if (levels.length === 0) {
        return;
      }

      if (this.currentLevelIndex === newLevel && (_levels$newLevel = levels[newLevel]) !== null && _levels$newLevel !== void 0 && _levels$newLevel.details) {
        return;
      } // check if level idx is valid


      if (newLevel < 0 || newLevel >= levels.length) {
        // invalid level id given, trigger error
        var fatal = newLevel < 0;
        this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].ERROR, {
          type: _errors__WEBPACK_IMPORTED_MODULE_2__["ErrorTypes"].OTHER_ERROR,
          details: _errors__WEBPACK_IMPORTED_MODULE_2__["ErrorDetails"].LEVEL_SWITCH_ERROR,
          level: newLevel,
          fatal: fatal,
          reason: 'invalid level idx'
        });

        if (fatal) {
          return;
        }

        newLevel = Math.min(newLevel, levels.length - 1);
      } // stopping live reloading timer if any


      this.clearTimer();
      var lastLevelIndex = this.currentLevelIndex;
      var lastLevel = levels[lastLevelIndex];
      var level = levels[newLevel];
      this.log("switching to level " + newLevel + " from " + lastLevelIndex);
      this.currentLevelIndex = newLevel;

      var levelSwitchingData = _extends({}, level, {
        level: newLevel,
        maxBitrate: level.maxBitrate,
        uri: level.uri,
        urlId: level.urlId
      }); // @ts-ignore


      delete levelSwitchingData._urlId;
      this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].LEVEL_SWITCHING, levelSwitchingData); // check if we need to load playlist for this level

      var levelDetails = level.details;

      if (!levelDetails || levelDetails.live) {
        // level not retrieved yet, or live playlist we need to (re)load it
        var hlsUrlParameters = this.switchParams(level.uri, lastLevel === null || lastLevel === void 0 ? void 0 : lastLevel.details);
        this.loadPlaylist(hlsUrlParameters);
      }
    }
  }, {
    key: "manualLevel",
    get: function get() {
      return this.manualLevelIndex;
    },
    set: function set(newLevel) {
      this.manualLevelIndex = newLevel;

      if (this._startLevel === undefined) {
        this._startLevel = newLevel;
      }

      if (newLevel !== -1) {
        this.level = newLevel;
      }
    }
  }, {
    key: "firstLevel",
    get: function get() {
      return this._firstLevel;
    },
    set: function set(newLevel) {
      this._firstLevel = newLevel;
    }
  }, {
    key: "startLevel",
    get: function get() {
      // hls.startLevel takes precedence over config.startLevel
      // if none of these values are defined, fallback on this._firstLevel (first quality level appearing in variant manifest)
      if (this._startLevel === undefined) {
        var configStartLevel = this.hls.config.startLevel;

        if (configStartLevel !== undefined) {
          return configStartLevel;
        } else {
          return this._firstLevel;
        }
      } else {
        return this._startLevel;
      }
    },
    set: function set(newLevel) {
      this._startLevel = newLevel;
    }
  }, {
    key: "nextLoadLevel",
    get: function get() {
      if (this.manualLevelIndex !== -1) {
        return this.manualLevelIndex;
      } else {
        return this.hls.nextAutoLevel;
      }
    },
    set: function set(nextLevel) {
      this.level = nextLevel;

      if (this.manualLevelIndex === -1) {
        this.hls.nextAutoLevel = nextLevel;
      }
    }
  }]);

  return LevelController;
}(_base_playlist_controller__WEBPACK_IMPORTED_MODULE_5__["default"]);



/***/ }),

/***/ "./src/controller/level-helper.ts":
/*!****************************************!*\
  !*** ./src/controller/level-helper.ts ***!
  \****************************************/
/*! exports provided: addGroupId, assignTrackIdsByGroup, updatePTS, updateFragPTSDTS, mergeDetails, mapPartIntersection, mapFragmentIntersection, adjustSliding, addSliding, computeReloadInterval, getFragmentWithSN, getPartWith */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "addGroupId", function() { return addGroupId; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "assignTrackIdsByGroup", function() { return assignTrackIdsByGroup; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "updatePTS", function() { return updatePTS; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "updateFragPTSDTS", function() { return updateFragPTSDTS; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "mergeDetails", function() { return mergeDetails; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "mapPartIntersection", function() { return mapPartIntersection; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "mapFragmentIntersection", function() { return mapFragmentIntersection; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "adjustSliding", function() { return adjustSliding; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "addSliding", function() { return addSliding; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "computeReloadInterval", function() { return computeReloadInterval; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getFragmentWithSN", function() { return getFragmentWithSN; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getPartWith", function() { return getPartWith; });
/* harmony import */ var _home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./src/polyfills/number */ "./src/polyfills/number.ts");
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../utils/logger */ "./src/utils/logger.ts");






/**
 * @module LevelHelper
 * Providing methods dealing with playlist sliding and drift
 * */

function addGroupId(level, type, id) {
  switch (type) {
    case 'audio':
      if (!level.audioGroupIds) {
        level.audioGroupIds = [];
      }

      level.audioGroupIds.push(id);
      break;

    case 'text':
      if (!level.textGroupIds) {
        level.textGroupIds = [];
      }

      level.textGroupIds.push(id);
      break;
  }
}
function assignTrackIdsByGroup(tracks) {
  var groups = {};
  tracks.forEach(function (track) {
    var groupId = track.groupId || '';
    track.id = groups[groupId] = groups[groupId] || 0;
    groups[groupId]++;
  });
}
function updatePTS(fragments, fromIdx, toIdx) {
  var fragFrom = fragments[fromIdx];
  var fragTo = fragments[toIdx];
  updateFromToPTS(fragFrom, fragTo);
}

function updateFromToPTS(fragFrom, fragTo) {
  var fragToPTS = fragTo.startPTS; // if we know startPTS[toIdx]

  if (Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(fragToPTS)) {
    // update fragment duration.
    // it helps to fix drifts between playlist reported duration and fragment real duration
    var duration = 0;
    var frag;

    if (fragTo.sn > fragFrom.sn) {
      duration = fragToPTS - fragFrom.start;
      frag = fragFrom;
    } else {
      duration = fragFrom.start - fragToPTS;
      frag = fragTo;
    } // TODO? Drift can go either way, or the playlist could be completely accurate
    // console.assert(duration > 0,
    //   `duration of ${duration} computed for frag ${frag.sn}, level ${frag.level}, there should be some duration drift between playlist and fragment!`);


    if (frag.duration !== duration) {
      frag.duration = duration;
    } // we dont know startPTS[toIdx]

  } else if (fragTo.sn > fragFrom.sn) {
    var contiguous = fragFrom.cc === fragTo.cc; // TODO: With part-loading end/durations we need to confirm the whole fragment is loaded before using (or setting) minEndPTS

    if (contiguous && fragFrom.minEndPTS) {
      fragTo.start = fragFrom.start + (fragFrom.minEndPTS - fragFrom.start);
    } else {
      fragTo.start = fragFrom.start + fragFrom.duration;
    }
  } else {
    fragTo.start = Math.max(fragFrom.start - fragTo.duration, 0);
  }
}

function updateFragPTSDTS(details, frag, startPTS, endPTS, startDTS, endDTS) {
  var parsedMediaDuration = endPTS - startPTS;

  if (parsedMediaDuration <= 0) {
    _utils_logger__WEBPACK_IMPORTED_MODULE_1__["logger"].warn('Fragment should have a positive duration', frag);
    endPTS = startPTS + frag.duration;
    endDTS = startDTS + frag.duration;
  }

  var maxStartPTS = startPTS;
  var minEndPTS = endPTS;
  var fragStartPts = frag.startPTS;
  var fragEndPts = frag.endPTS;

  if (Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(fragStartPts)) {
    // delta PTS between audio and video
    var deltaPTS = Math.abs(fragStartPts - startPTS);

    if (!Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(frag.deltaPTS)) {
      frag.deltaPTS = deltaPTS;
    } else {
      frag.deltaPTS = Math.max(deltaPTS, frag.deltaPTS);
    }

    maxStartPTS = Math.max(startPTS, fragStartPts);
    startPTS = Math.min(startPTS, fragStartPts);
    startDTS = Math.min(startDTS, frag.startDTS);
    minEndPTS = Math.min(endPTS, fragEndPts);
    endPTS = Math.max(endPTS, fragEndPts);
    endDTS = Math.max(endDTS, frag.endDTS);
  }

  frag.duration = endPTS - startPTS;
  var drift = startPTS - frag.start;
  frag.appendedPTS = endPTS;
  frag.start = frag.startPTS = startPTS;
  frag.maxStartPTS = maxStartPTS;
  frag.startDTS = startDTS;
  frag.endPTS = endPTS;
  frag.minEndPTS = minEndPTS;
  frag.endDTS = endDTS;
  var sn = frag.sn; // 'initSegment'
  // exit if sn out of range

  if (!details || sn < details.startSN || sn > details.endSN) {
    return 0;
  }

  var i;
  var fragIdx = sn - details.startSN;
  var fragments = details.fragments; // update frag reference in fragments array
  // rationale is that fragments array might not contain this frag object.
  // this will happen if playlist has been refreshed between frag loading and call to updateFragPTSDTS()
  // if we don't update frag, we won't be able to propagate PTS info on the playlist
  // resulting in invalid sliding computation

  fragments[fragIdx] = frag; // adjust fragment PTS/duration from seqnum-1 to frag 0

  for (i = fragIdx; i > 0; i--) {
    updateFromToPTS(fragments[i], fragments[i - 1]);
  } // adjust fragment PTS/duration from seqnum to last frag


  for (i = fragIdx; i < fragments.length - 1; i++) {
    updateFromToPTS(fragments[i], fragments[i + 1]);
  }

  if (details.fragmentHint) {
    updateFromToPTS(fragments[fragments.length - 1], details.fragmentHint);
  }

  details.PTSKnown = details.alignedSliding = true;
  return drift;
}
function mergeDetails(oldDetails, newDetails) {
  // Track the last initSegment processed. Initialize it to the last one on the timeline.
  var currentInitSegment = null;
  var oldFragments = oldDetails.fragments;

  for (var i = oldFragments.length - 1; i >= 0; i--) {
    var oldInit = oldFragments[i].initSegment;

    if (oldInit) {
      currentInitSegment = oldInit;
      break;
    }
  }

  if (oldDetails.fragmentHint) {
    // prevent PTS and duration from being adjusted on the next hint
    delete oldDetails.fragmentHint.endPTS;
  } // check if old/new playlists have fragments in common
  // loop through overlapping SN and update startPTS , cc, and duration if any found


  var ccOffset = 0;
  var PTSFrag;
  mapFragmentIntersection(oldDetails, newDetails, function (oldFrag, newFrag) {
    if (oldFrag.relurl) {
      // Do not compare CC if the old fragment has no url. This is a level.fragmentHint used by LL-HLS parts.
      // It maybe be off by 1 if it was created before any parts or discontinuity tags were appended to the end
      // of the playlist.
      ccOffset = oldFrag.cc - newFrag.cc;
    }

    if (Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(oldFrag.startPTS) && Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(oldFrag.endPTS)) {
      newFrag.start = newFrag.startPTS = oldFrag.startPTS;
      newFrag.startDTS = oldFrag.startDTS;
      newFrag.appendedPTS = oldFrag.appendedPTS;
      newFrag.maxStartPTS = oldFrag.maxStartPTS;
      newFrag.endPTS = oldFrag.endPTS;
      newFrag.endDTS = oldFrag.endDTS;
      newFrag.minEndPTS = oldFrag.minEndPTS;
      newFrag.duration = oldFrag.endPTS - oldFrag.startPTS;

      if (newFrag.duration) {
        PTSFrag = newFrag;
      } // PTS is known when any segment has startPTS and endPTS


      newDetails.PTSKnown = newDetails.alignedSliding = true;
    }

    newFrag.elementaryStreams = oldFrag.elementaryStreams;
    newFrag.loader = oldFrag.loader;
    newFrag.stats = oldFrag.stats;
    newFrag.urlId = oldFrag.urlId;

    if (oldFrag.initSegment) {
      newFrag.initSegment = oldFrag.initSegment;
      currentInitSegment = oldFrag.initSegment;
    }
  });

  if (currentInitSegment) {
    var fragmentsToCheck = newDetails.fragmentHint ? newDetails.fragments.concat(newDetails.fragmentHint) : newDetails.fragments;
    fragmentsToCheck.forEach(function (frag) {
      var _currentInitSegment;

      if (!frag.initSegment || frag.initSegment.relurl === ((_currentInitSegment = currentInitSegment) === null || _currentInitSegment === void 0 ? void 0 : _currentInitSegment.relurl)) {
        frag.initSegment = currentInitSegment;
      }
    });
  }

  if (newDetails.skippedSegments) {
    newDetails.deltaUpdateFailed = newDetails.fragments.some(function (frag) {
      return !frag;
    });

    if (newDetails.deltaUpdateFailed) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_1__["logger"].warn('[level-helper] Previous playlist missing segments skipped in delta playlist');

      for (var _i = newDetails.skippedSegments; _i--;) {
        newDetails.fragments.shift();
      }

      newDetails.startSN = newDetails.fragments[0].sn;
      newDetails.startCC = newDetails.fragments[0].cc;
    }
  }

  var newFragments = newDetails.fragments;

  if (ccOffset) {
    _utils_logger__WEBPACK_IMPORTED_MODULE_1__["logger"].warn('discontinuity sliding from playlist, take drift into account');

    for (var _i2 = 0; _i2 < newFragments.length; _i2++) {
      newFragments[_i2].cc += ccOffset;
    }
  }

  if (newDetails.skippedSegments) {
    newDetails.startCC = newDetails.fragments[0].cc;
  } // Merge parts


  mapPartIntersection(oldDetails.partList, newDetails.partList, function (oldPart, newPart) {
    newPart.elementaryStreams = oldPart.elementaryStreams;
    newPart.stats = oldPart.stats;
  }); // if at least one fragment contains PTS info, recompute PTS information for all fragments

  if (PTSFrag) {
    updateFragPTSDTS(newDetails, PTSFrag, PTSFrag.startPTS, PTSFrag.endPTS, PTSFrag.startDTS, PTSFrag.endDTS);
  } else {
    // ensure that delta is within oldFragments range
    // also adjust sliding in case delta is 0 (we could have old=[50-60] and new=old=[50-61])
    // in that case we also need to adjust start offset of all fragments
    adjustSliding(oldDetails, newDetails);
  }

  if (newFragments.length) {
    newDetails.totalduration = newDetails.edge - newFragments[0].start;
  }

  newDetails.driftStartTime = oldDetails.driftStartTime;
  newDetails.driftStart = oldDetails.driftStart;
  var advancedDateTime = newDetails.advancedDateTime;

  if (newDetails.advanced && advancedDateTime) {
    var edge = newDetails.edge;

    if (!newDetails.driftStart) {
      newDetails.driftStartTime = advancedDateTime;
      newDetails.driftStart = edge;
    }

    newDetails.driftEndTime = advancedDateTime;
    newDetails.driftEnd = edge;
  } else {
    newDetails.driftEndTime = oldDetails.driftEndTime;
    newDetails.driftEnd = oldDetails.driftEnd;
    newDetails.advancedDateTime = oldDetails.advancedDateTime;
  }
}
function mapPartIntersection(oldParts, newParts, intersectionFn) {
  if (oldParts && newParts) {
    var delta = 0;

    for (var i = 0, len = oldParts.length; i <= len; i++) {
      var _oldPart = oldParts[i];
      var _newPart = newParts[i + delta];

      if (_oldPart && _newPart && _oldPart.index === _newPart.index && _oldPart.fragment.sn === _newPart.fragment.sn) {
        intersectionFn(_oldPart, _newPart);
      } else {
        delta--;
      }
    }
  }
}
function mapFragmentIntersection(oldDetails, newDetails, intersectionFn) {
  var skippedSegments = newDetails.skippedSegments;
  var start = Math.max(oldDetails.startSN, newDetails.startSN) - newDetails.startSN;
  var end = (oldDetails.fragmentHint ? 1 : 0) + (skippedSegments ? newDetails.endSN : Math.min(oldDetails.endSN, newDetails.endSN)) - newDetails.startSN;
  var delta = newDetails.startSN - oldDetails.startSN;
  var newFrags = newDetails.fragmentHint ? newDetails.fragments.concat(newDetails.fragmentHint) : newDetails.fragments;
  var oldFrags = oldDetails.fragmentHint ? oldDetails.fragments.concat(oldDetails.fragmentHint) : oldDetails.fragments;

  for (var i = start; i <= end; i++) {
    var _oldFrag = oldFrags[delta + i];
    var _newFrag = newFrags[i];

    if (skippedSegments && !_newFrag && i < skippedSegments) {
      // Fill in skipped segments in delta playlist
      _newFrag = newDetails.fragments[i] = _oldFrag;
    }

    if (_oldFrag && _newFrag) {
      intersectionFn(_oldFrag, _newFrag);
    }
  }
}
function adjustSliding(oldDetails, newDetails) {
  var delta = newDetails.startSN + newDetails.skippedSegments - oldDetails.startSN;
  var oldFragments = oldDetails.fragments;

  if (delta < 0 || delta >= oldFragments.length) {
    return;
  }

  addSliding(newDetails, oldFragments[delta].start);
}
function addSliding(details, start) {
  if (start) {
    var fragments = details.fragments;

    for (var i = details.skippedSegments; i < fragments.length; i++) {
      fragments[i].start += start;
    }

    if (details.fragmentHint) {
      details.fragmentHint.start += start;
    }
  }
}
function computeReloadInterval(newDetails, stats) {
  var reloadInterval = 1000 * newDetails.levelTargetDuration;
  var reloadIntervalAfterMiss = reloadInterval / 2;
  var timeSinceLastModified = newDetails.age;
  var useLastModified = timeSinceLastModified > 0 && timeSinceLastModified < reloadInterval * 3;
  var roundTrip = stats.loading.end - stats.loading.start;
  var estimatedTimeUntilUpdate;
  var availabilityDelay = newDetails.availabilityDelay; // let estimate = 'average';

  if (newDetails.updated === false) {
    if (useLastModified) {
      // estimate = 'miss round trip';
      // We should have had a hit so try again in the time it takes to get a response,
      // but no less than 1/3 second.
      var minRetry = 333 * newDetails.misses;
      estimatedTimeUntilUpdate = Math.max(Math.min(reloadIntervalAfterMiss, roundTrip * 2), minRetry);
      newDetails.availabilityDelay = (newDetails.availabilityDelay || 0) + estimatedTimeUntilUpdate;
    } else {
      // estimate = 'miss half average';
      // follow HLS Spec, If the client reloads a Playlist file and finds that it has not
      // changed then it MUST wait for a period of one-half the target
      // duration before retrying.
      estimatedTimeUntilUpdate = reloadIntervalAfterMiss;
    }
  } else if (useLastModified) {
    // estimate = 'next modified date';
    // Get the closest we've been to timeSinceLastModified on update
    availabilityDelay = Math.min(availabilityDelay || reloadInterval / 2, timeSinceLastModified);
    newDetails.availabilityDelay = availabilityDelay;
    estimatedTimeUntilUpdate = availabilityDelay + reloadInterval - timeSinceLastModified;
  } else {
    estimatedTimeUntilUpdate = reloadInterval - roundTrip;
  } // console.log(`[computeReloadInterval] live reload ${newDetails.updated ? 'REFRESHED' : 'MISSED'}`,
  //   '\n  method', estimate,
  //   '\n  estimated time until update =>', estimatedTimeUntilUpdate,
  //   '\n  average target duration', reloadInterval,
  //   '\n  time since modified', timeSinceLastModified,
  //   '\n  time round trip', roundTrip,
  //   '\n  availability delay', availabilityDelay);


  return Math.round(estimatedTimeUntilUpdate);
}
function getFragmentWithSN(level, sn, fragCurrent) {
  if (!level || !level.details) {
    return null;
  }

  var levelDetails = level.details;
  var fragment = levelDetails.fragments[sn - levelDetails.startSN];

  if (fragment) {
    return fragment;
  }

  fragment = levelDetails.fragmentHint;

  if (fragment && fragment.sn === sn) {
    return fragment;
  }

  if (sn < levelDetails.startSN && fragCurrent && fragCurrent.sn === sn) {
    return fragCurrent;
  }

  return null;
}
function getPartWith(level, sn, partIndex) {
  if (!level || !level.details) {
    return null;
  }

  var partList = level.details.partList;

  if (partList) {
    for (var i = partList.length; i--;) {
      var part = partList[i];

      if (part.index === partIndex && part.fragment.sn === sn) {
        return part;
      }
    }
  }

  return null;
}

/***/ }),

/***/ "./src/controller/stream-controller.ts":
/*!*********************************************!*\
  !*** ./src/controller/stream-controller.ts ***!
  \*********************************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "default", function() { return StreamController; });
/* harmony import */ var _home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./src/polyfills/number */ "./src/polyfills/number.ts");
/* harmony import */ var _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./base-stream-controller */ "./src/controller/base-stream-controller.ts");
/* harmony import */ var _is_supported__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../is-supported */ "./src/is-supported.ts");
/* harmony import */ var _events__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../events */ "./src/events.ts");
/* harmony import */ var _utils_buffer_helper__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../utils/buffer-helper */ "./src/utils/buffer-helper.ts");
/* harmony import */ var _fragment_tracker__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ./fragment-tracker */ "./src/controller/fragment-tracker.ts");
/* harmony import */ var _types_loader__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ../types/loader */ "./src/types/loader.ts");
/* harmony import */ var _loader_fragment__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ../loader/fragment */ "./src/loader/fragment.ts");
/* harmony import */ var _demux_transmuxer_interface__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! ../demux/transmuxer-interface */ "./src/demux/transmuxer-interface.ts");
/* harmony import */ var _types_transmuxer__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(/*! ../types/transmuxer */ "./src/types/transmuxer.ts");
/* harmony import */ var _gap_controller__WEBPACK_IMPORTED_MODULE_10__ = __webpack_require__(/*! ./gap-controller */ "./src/controller/gap-controller.ts");
/* harmony import */ var _errors__WEBPACK_IMPORTED_MODULE_11__ = __webpack_require__(/*! ../errors */ "./src/errors.ts");
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_12__ = __webpack_require__(/*! ../utils/logger */ "./src/utils/logger.ts");



function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }













var TICK_INTERVAL = 100; // how often to tick in ms

var StreamController = /*#__PURE__*/function (_BaseStreamController) {
  _inheritsLoose(StreamController, _BaseStreamController);

  function StreamController(hls, fragmentTracker) {
    var _this;

    _this = _BaseStreamController.call(this, hls, fragmentTracker, '[stream-controller]') || this;
    _this.audioCodecSwap = false;
    _this.gapController = null;
    _this.level = -1;
    _this._forceStartLoad = false;
    _this.altAudio = false;
    _this.audioOnly = false;
    _this.fragPlaying = null;
    _this.onvplaying = null;
    _this.onvseeked = null;
    _this.fragLastKbps = 0;
    _this.stalled = false;
    _this.couldBacktrack = false;
    _this.audioCodecSwitch = false;
    _this.videoBuffer = null;

    _this._registerListeners();

    return _this;
  }

  var _proto = StreamController.prototype;

  _proto._registerListeners = function _registerListeners() {
    var hls = this.hls;
    hls.on(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].MEDIA_ATTACHED, this.onMediaAttached, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].MEDIA_DETACHING, this.onMediaDetaching, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].MANIFEST_LOADING, this.onManifestLoading, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].MANIFEST_PARSED, this.onManifestParsed, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].LEVEL_LOADING, this.onLevelLoading, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].LEVEL_LOADED, this.onLevelLoaded, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].FRAG_LOAD_EMERGENCY_ABORTED, this.onFragLoadEmergencyAborted, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].ERROR, this.onError, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].AUDIO_TRACK_SWITCHING, this.onAudioTrackSwitching, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].AUDIO_TRACK_SWITCHED, this.onAudioTrackSwitched, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].BUFFER_CREATED, this.onBufferCreated, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].BUFFER_FLUSHED, this.onBufferFlushed, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].LEVELS_UPDATED, this.onLevelsUpdated, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].FRAG_BUFFERED, this.onFragBuffered, this);
  };

  _proto._unregisterListeners = function _unregisterListeners() {
    var hls = this.hls;
    hls.off(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].MEDIA_ATTACHED, this.onMediaAttached, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].MEDIA_DETACHING, this.onMediaDetaching, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].MANIFEST_LOADING, this.onManifestLoading, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].MANIFEST_PARSED, this.onManifestParsed, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].LEVEL_LOADED, this.onLevelLoaded, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].FRAG_LOAD_EMERGENCY_ABORTED, this.onFragLoadEmergencyAborted, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].ERROR, this.onError, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].AUDIO_TRACK_SWITCHING, this.onAudioTrackSwitching, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].AUDIO_TRACK_SWITCHED, this.onAudioTrackSwitched, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].BUFFER_CREATED, this.onBufferCreated, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].BUFFER_FLUSHED, this.onBufferFlushed, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].LEVELS_UPDATED, this.onLevelsUpdated, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].FRAG_BUFFERED, this.onFragBuffered, this);
  };

  _proto.onHandlerDestroying = function onHandlerDestroying() {
    this._unregisterListeners();

    this.onMediaDetaching();
  };

  _proto.startLoad = function startLoad(startPosition) {
    if (this.levels) {
      var lastCurrentTime = this.lastCurrentTime,
          hls = this.hls;
      this.stopLoad();
      this.setInterval(TICK_INTERVAL);
      this.level = -1;
      this.fragLoadError = 0;

      if (!this.startFragRequested) {
        // determine load level
        var startLevel = hls.startLevel;

        if (startLevel === -1) {
          if (hls.config.testBandwidth) {
            // -1 : guess start Level by doing a bitrate test by loading first fragment of lowest quality level
            startLevel = 0;
            this.bitrateTest = true;
          } else {
            startLevel = hls.nextAutoLevel;
          }
        } // set new level to playlist loader : this will trigger start level load
        // hls.nextLoadLevel remains until it is set to a new value or until a new frag is successfully loaded


        this.level = hls.nextLoadLevel = startLevel;
        this.loadedmetadata = false;
      } // if startPosition undefined but lastCurrentTime set, set startPosition to last currentTime


      if (lastCurrentTime > 0 && startPosition === -1) {
        this.log("Override startPosition with lastCurrentTime @" + lastCurrentTime.toFixed(3));
        startPosition = lastCurrentTime;
      }

      this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].IDLE;
      this.nextLoadPosition = this.startPosition = this.lastCurrentTime = startPosition;
      this.tick();
    } else {
      this._forceStartLoad = true;
      this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].STOPPED;
    }
  };

  _proto.stopLoad = function stopLoad() {
    this._forceStartLoad = false;

    _BaseStreamController.prototype.stopLoad.call(this);
  };

  _proto.doTick = function doTick() {
    switch (this.state) {
      case _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].IDLE:
        this.doTickIdle();
        break;

      case _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].WAITING_LEVEL:
        {
          var _levels$level;

          var levels = this.levels,
              level = this.level;
          var details = levels === null || levels === void 0 ? void 0 : (_levels$level = levels[level]) === null || _levels$level === void 0 ? void 0 : _levels$level.details;

          if (details && (!details.live || this.levelLastLoaded === this.level)) {
            if (this.waitForCdnTuneIn(details)) {
              break;
            }

            this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].IDLE;
            break;
          }

          break;
        }

      case _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].FRAG_LOADING_WAITING_RETRY:
        {
          var _this$media;

          var now = self.performance.now();
          var retryDate = this.retryDate; // if current time is gt than retryDate, or if media seeking let's switch to IDLE state to retry loading

          if (!retryDate || now >= retryDate || (_this$media = this.media) !== null && _this$media !== void 0 && _this$media.seeking) {
            this.log('retryDate reached, switch back to IDLE state');
            this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].IDLE;
          }
        }
        break;

      default:
        break;
    } // check buffer
    // check/update current fragment


    this.onTickEnd();
  };

  _proto.onTickEnd = function onTickEnd() {
    _BaseStreamController.prototype.onTickEnd.call(this);

    this.checkBuffer();
    this.checkFragmentChanged();
  };

  _proto.doTickIdle = function doTickIdle() {
    var _frag$decryptdata, _frag$decryptdata2;

    var hls = this.hls,
        levelLastLoaded = this.levelLastLoaded,
        levels = this.levels,
        media = this.media;
    var config = hls.config,
        level = hls.nextLoadLevel; // if start level not parsed yet OR
    // if video not attached AND start fragment already requested OR start frag prefetch not enabled
    // exit loop, as we either need more info (level not parsed) or we need media to be attached to load new fragment

    if (levelLastLoaded === null || !media && (this.startFragRequested || !config.startFragPrefetch)) {
      return;
    } // If the "main" level is audio-only but we are loading an alternate track in the same group, do not load anything


    if (this.altAudio && this.audioOnly) {
      return;
    }

    if (!levels || !levels[level]) {
      return;
    }

    var levelInfo = levels[level]; // if buffer length is less than maxBufLen try to load a new fragment
    // set next load level : this will trigger a playlist load if needed

    this.level = hls.nextLoadLevel = level;
    var levelDetails = levelInfo.details; // if level info not retrieved yet, switch state and wait for level retrieval
    // if live playlist, ensure that new playlist has been refreshed to avoid loading/try to load
    // a useless and outdated fragment (that might even introduce load error if it is already out of the live playlist)

    if (!levelDetails || this.state === _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].WAITING_LEVEL || levelDetails.live && this.levelLastLoaded !== level) {
      this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].WAITING_LEVEL;
      return;
    }

    var bufferInfo = this.getFwdBufferInfo(this.mediaBuffer ? this.mediaBuffer : media, _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistLevelType"].MAIN);

    if (bufferInfo === null) {
      return;
    }

    var bufferLen = bufferInfo.len; // compute max Buffer Length that we could get from this load level, based on level bitrate. don't buffer more than 60 MB and more than 30s

    var maxBufLen = this.getMaxBufferLength(levelInfo.maxBitrate); // Stay idle if we are still with buffer margins

    if (bufferLen >= maxBufLen) {
      return;
    }

    if (this._streamEnded(bufferInfo, levelDetails)) {
      var data = {};

      if (this.altAudio) {
        data.type = 'video';
      }

      this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].BUFFER_EOS, data);
      this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].ENDED;
      return;
    }

    var targetBufferTime = bufferInfo.end;
    var frag = this.getNextFragment(targetBufferTime, levelDetails); // Avoid backtracking after seeking or switching by loading an earlier segment in streams that could backtrack

    if (this.couldBacktrack && !this.fragPrevious && frag && frag.sn !== 'initSegment') {
      var fragIdx = frag.sn - levelDetails.startSN;

      if (fragIdx > 1) {
        frag = levelDetails.fragments[fragIdx - 1];
        this.fragmentTracker.removeFragment(frag);
      }
    } // Avoid loop loading by using nextLoadPosition set for backtracking


    if (frag && this.fragmentTracker.getState(frag) === _fragment_tracker__WEBPACK_IMPORTED_MODULE_5__["FragmentState"].OK && this.nextLoadPosition > targetBufferTime) {
      // Cleanup the fragment tracker before trying to find the next unbuffered fragment
      var type = this.audioOnly && !this.altAudio ? _loader_fragment__WEBPACK_IMPORTED_MODULE_7__["ElementaryStreamTypes"].AUDIO : _loader_fragment__WEBPACK_IMPORTED_MODULE_7__["ElementaryStreamTypes"].VIDEO;
      this.afterBufferFlushed(media, type, _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistLevelType"].MAIN);
      frag = this.getNextFragment(this.nextLoadPosition, levelDetails);
    }

    if (!frag) {
      return;
    }

    if (frag.initSegment && !frag.initSegment.data && !this.bitrateTest) {
      frag = frag.initSegment;
    } // We want to load the key if we're dealing with an identity key, because we will decrypt
    // this content using the key we fetch. Other keys will be handled by the DRM CDM via EME.


    if (((_frag$decryptdata = frag.decryptdata) === null || _frag$decryptdata === void 0 ? void 0 : _frag$decryptdata.keyFormat) === 'identity' && !((_frag$decryptdata2 = frag.decryptdata) !== null && _frag$decryptdata2 !== void 0 && _frag$decryptdata2.key)) {
      this.loadKey(frag, levelDetails);
    } else {
      this.loadFragment(frag, levelDetails, targetBufferTime);
    }
  };

  _proto.loadFragment = function loadFragment(frag, levelDetails, targetBufferTime) {
    var _this$media2;

    // Check if fragment is not loaded
    var fragState = this.fragmentTracker.getState(frag);
    this.fragCurrent = frag; // Use data from loaded backtracked fragment if available

    if (fragState === _fragment_tracker__WEBPACK_IMPORTED_MODULE_5__["FragmentState"].BACKTRACKED) {
      var data = this.fragmentTracker.getBacktrackData(frag);

      if (data) {
        this._handleFragmentLoadProgress(data);

        this._handleFragmentLoadComplete(data);

        return;
      } else {
        fragState = _fragment_tracker__WEBPACK_IMPORTED_MODULE_5__["FragmentState"].NOT_LOADED;
      }
    }

    if (fragState === _fragment_tracker__WEBPACK_IMPORTED_MODULE_5__["FragmentState"].NOT_LOADED || fragState === _fragment_tracker__WEBPACK_IMPORTED_MODULE_5__["FragmentState"].PARTIAL) {
      if (frag.sn === 'initSegment') {
        this._loadInitSegment(frag);
      } else if (this.bitrateTest) {
        frag.bitrateTest = true;
        this.log("Fragment " + frag.sn + " of level " + frag.level + " is being downloaded to test bitrate and will not be buffered");

        this._loadBitrateTestFrag(frag);
      } else {
        this.startFragRequested = true;

        _BaseStreamController.prototype.loadFragment.call(this, frag, levelDetails, targetBufferTime);
      }
    } else if (fragState === _fragment_tracker__WEBPACK_IMPORTED_MODULE_5__["FragmentState"].APPENDING) {
      // Lower the buffer size and try again
      if (this.reduceMaxBufferLength(frag.duration)) {
        this.fragmentTracker.removeFragment(frag);
      }
    } else if (((_this$media2 = this.media) === null || _this$media2 === void 0 ? void 0 : _this$media2.buffered.length) === 0) {
      // Stop gap for bad tracker / buffer flush behavior
      this.fragmentTracker.removeAllFragments();
    }
  };

  _proto.getAppendedFrag = function getAppendedFrag(position) {
    var fragOrPart = this.fragmentTracker.getAppendedFrag(position, _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistLevelType"].MAIN);

    if (fragOrPart && 'fragment' in fragOrPart) {
      return fragOrPart.fragment;
    }

    return fragOrPart;
  };

  _proto.getBufferedFrag = function getBufferedFrag(position) {
    return this.fragmentTracker.getBufferedFrag(position, _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistLevelType"].MAIN);
  };

  _proto.followingBufferedFrag = function followingBufferedFrag(frag) {
    if (frag) {
      // try to get range of next fragment (500ms after this range)
      return this.getBufferedFrag(frag.end + 0.5);
    }

    return null;
  }
  /*
    on immediate level switch :
     - pause playback if playing
     - cancel any pending load request
     - and trigger a buffer flush
  */
  ;

  _proto.immediateLevelSwitch = function immediateLevelSwitch() {
    this.abortCurrentFrag();
    this.flushMainBuffer(0, Number.POSITIVE_INFINITY);
  }
  /**
   * try to switch ASAP without breaking video playback:
   * in order to ensure smooth but quick level switching,
   * we need to find the next flushable buffer range
   * we should take into account new segment fetch time
   */
  ;

  _proto.nextLevelSwitch = function nextLevelSwitch() {
    var levels = this.levels,
        media = this.media; // ensure that media is defined and that metadata are available (to retrieve currentTime)

    if (media !== null && media !== void 0 && media.readyState) {
      var fetchdelay;
      var fragPlayingCurrent = this.getAppendedFrag(media.currentTime);

      if (fragPlayingCurrent && fragPlayingCurrent.start > 1) {
        // flush buffer preceding current fragment (flush until current fragment start offset)
        // minus 1s to avoid video freezing, that could happen if we flush keyframe of current video ...
        this.flushMainBuffer(0, fragPlayingCurrent.start - 1);
      }

      if (!media.paused && levels) {
        // add a safety delay of 1s
        var nextLevelId = this.hls.nextLoadLevel;
        var nextLevel = levels[nextLevelId];
        var fragLastKbps = this.fragLastKbps;

        if (fragLastKbps && this.fragCurrent) {
          fetchdelay = this.fragCurrent.duration * nextLevel.maxBitrate / (1000 * fragLastKbps) + 1;
        } else {
          fetchdelay = 0;
        }
      } else {
        fetchdelay = 0;
      } // this.log('fetchdelay:'+fetchdelay);
      // find buffer range that will be reached once new fragment will be fetched


      var bufferedFrag = this.getBufferedFrag(media.currentTime + fetchdelay);

      if (bufferedFrag) {
        // we can flush buffer range following this one without stalling playback
        var nextBufferedFrag = this.followingBufferedFrag(bufferedFrag);

        if (nextBufferedFrag) {
          // if we are here, we can also cancel any loading/demuxing in progress, as they are useless
          this.abortCurrentFrag(); // start flush position is in next buffered frag. Leave some padding for non-independent segments and smoother playback.

          var maxStart = nextBufferedFrag.maxStartPTS ? nextBufferedFrag.maxStartPTS : nextBufferedFrag.start;
          var fragDuration = nextBufferedFrag.duration;
          var startPts = Math.max(bufferedFrag.end, maxStart + Math.min(Math.max(fragDuration - this.config.maxFragLookUpTolerance, fragDuration * 0.5), fragDuration * 0.75));
          this.flushMainBuffer(startPts, Number.POSITIVE_INFINITY);
        }
      }
    }
  };

  _proto.abortCurrentFrag = function abortCurrentFrag() {
    var fragCurrent = this.fragCurrent;
    this.fragCurrent = null;

    if (fragCurrent !== null && fragCurrent !== void 0 && fragCurrent.loader) {
      fragCurrent.loader.abort();
    }

    if (this.state === _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].KEY_LOADING) {
      this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].IDLE;
    }

    this.nextLoadPosition = this.getLoadPosition();
  };

  _proto.flushMainBuffer = function flushMainBuffer(startOffset, endOffset) {
    _BaseStreamController.prototype.flushMainBuffer.call(this, startOffset, endOffset, this.altAudio ? 'video' : null);
  };

  _proto.onMediaAttached = function onMediaAttached(event, data) {
    _BaseStreamController.prototype.onMediaAttached.call(this, event, data);

    var media = data.media;
    this.onvplaying = this.onMediaPlaying.bind(this);
    this.onvseeked = this.onMediaSeeked.bind(this);
    media.addEventListener('playing', this.onvplaying);
    media.addEventListener('seeked', this.onvseeked);
    this.gapController = new _gap_controller__WEBPACK_IMPORTED_MODULE_10__["default"](this.config, media, this.fragmentTracker, this.hls);
  };

  _proto.onMediaDetaching = function onMediaDetaching() {
    var media = this.media;

    if (media) {
      media.removeEventListener('playing', this.onvplaying);
      media.removeEventListener('seeked', this.onvseeked);
      this.onvplaying = this.onvseeked = null;
      this.videoBuffer = null;
    }

    this.fragPlaying = null;

    if (this.gapController) {
      this.gapController.destroy();
      this.gapController = null;
    }

    _BaseStreamController.prototype.onMediaDetaching.call(this);
  };

  _proto.onMediaPlaying = function onMediaPlaying() {
    // tick to speed up FRAG_CHANGED triggering
    this.tick();
  };

  _proto.onMediaSeeked = function onMediaSeeked() {
    var media = this.media;
    var currentTime = media ? media.currentTime : null;

    if (Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(currentTime)) {
      this.log("Media seeked to " + currentTime.toFixed(3));
    } // tick to speed up FRAG_CHANGED triggering


    this.tick();
  };

  _proto.onManifestLoading = function onManifestLoading() {
    // reset buffer on manifest loading
    this.log('Trigger BUFFER_RESET');
    this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].BUFFER_RESET, undefined);
    this.fragmentTracker.removeAllFragments();
    this.couldBacktrack = this.stalled = false;
    this.startPosition = this.lastCurrentTime = 0;
    this.fragPlaying = null;
  };

  _proto.onManifestParsed = function onManifestParsed(event, data) {
    var aac = false;
    var heaac = false;
    var codec;
    data.levels.forEach(function (level) {
      // detect if we have different kind of audio codecs used amongst playlists
      codec = level.audioCodec;

      if (codec) {
        if (codec.indexOf('mp4a.40.2') !== -1) {
          aac = true;
        }

        if (codec.indexOf('mp4a.40.5') !== -1) {
          heaac = true;
        }
      }
    });
    this.audioCodecSwitch = aac && heaac && !Object(_is_supported__WEBPACK_IMPORTED_MODULE_2__["changeTypeSupported"])();

    if (this.audioCodecSwitch) {
      this.log('Both AAC/HE-AAC audio found in levels; declaring level codec as HE-AAC');
    }

    this.levels = data.levels;
    this.startFragRequested = false;
  };

  _proto.onLevelLoading = function onLevelLoading(event, data) {
    var levels = this.levels;

    if (!levels || this.state !== _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].IDLE) {
      return;
    }

    var level = levels[data.level];

    if (!level.details || level.details.live && this.levelLastLoaded !== data.level || this.waitForCdnTuneIn(level.details)) {
      this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].WAITING_LEVEL;
    }
  };

  _proto.onLevelLoaded = function onLevelLoaded(event, data) {
    var _curLevel$details;

    var levels = this.levels;
    var newLevelId = data.level;
    var newDetails = data.details;
    var duration = newDetails.totalduration;

    if (!levels) {
      this.warn("Levels were reset while loading level " + newLevelId);
      return;
    }

    this.log("Level " + newLevelId + " loaded [" + newDetails.startSN + "," + newDetails.endSN + "], cc [" + newDetails.startCC + ", " + newDetails.endCC + "] duration:" + duration);
    var fragCurrent = this.fragCurrent;

    if (fragCurrent && (this.state === _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].FRAG_LOADING || this.state === _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].FRAG_LOADING_WAITING_RETRY)) {
      if (fragCurrent.level !== data.level && fragCurrent.loader) {
        this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].IDLE;
        fragCurrent.loader.abort();
      }
    }

    var curLevel = levels[newLevelId];
    var sliding = 0;

    if (newDetails.live || (_curLevel$details = curLevel.details) !== null && _curLevel$details !== void 0 && _curLevel$details.live) {
      if (!newDetails.fragments[0]) {
        newDetails.deltaUpdateFailed = true;
      }

      if (newDetails.deltaUpdateFailed) {
        return;
      }

      sliding = this.alignPlaylists(newDetails, curLevel.details);
    } // override level info


    curLevel.details = newDetails;
    this.levelLastLoaded = newLevelId;
    this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].LEVEL_UPDATED, {
      details: newDetails,
      level: newLevelId
    }); // only switch back to IDLE state if we were waiting for level to start downloading a new fragment

    if (this.state === _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].WAITING_LEVEL) {
      if (this.waitForCdnTuneIn(newDetails)) {
        // Wait for Low-Latency CDN Tune-in
        return;
      }

      this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].IDLE;
    }

    if (!this.startFragRequested) {
      this.setStartPosition(newDetails, sliding);
    } else if (newDetails.live) {
      this.synchronizeToLiveEdge(newDetails);
    } // trigger handler right now


    this.tick();
  };

  _proto._handleFragmentLoadProgress = function _handleFragmentLoadProgress(data) {
    var _frag$initSegment;

    var frag = data.frag,
        part = data.part,
        payload = data.payload;
    var levels = this.levels;

    if (!levels) {
      this.warn("Levels were reset while fragment load was in progress. Fragment " + frag.sn + " of level " + frag.level + " will not be buffered");
      return;
    }

    var currentLevel = levels[frag.level];
    var details = currentLevel.details;

    if (!details) {
      this.warn("Dropping fragment " + frag.sn + " of level " + frag.level + " after level details were reset");
      return;
    }

    var videoCodec = currentLevel.videoCodec; // time Offset is accurate if level PTS is known, or if playlist is not sliding (not live)

    var accurateTimeOffset = details.PTSKnown || !details.live;
    var initSegmentData = (_frag$initSegment = frag.initSegment) === null || _frag$initSegment === void 0 ? void 0 : _frag$initSegment.data;

    var audioCodec = this._getAudioCodec(currentLevel); // transmux the MPEG-TS data to ISO-BMFF segments
    // this.log(`Transmuxing ${frag.sn} of [${details.startSN} ,${details.endSN}],level ${frag.level}, cc ${frag.cc}`);


    var transmuxer = this.transmuxer = this.transmuxer || new _demux_transmuxer_interface__WEBPACK_IMPORTED_MODULE_8__["default"](this.hls, _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistLevelType"].MAIN, this._handleTransmuxComplete.bind(this), this._handleTransmuxerFlush.bind(this));
    var partIndex = part ? part.index : -1;
    var partial = partIndex !== -1;
    var chunkMeta = new _types_transmuxer__WEBPACK_IMPORTED_MODULE_9__["ChunkMetadata"](frag.level, frag.sn, frag.stats.chunkCount, payload.byteLength, partIndex, partial);
    var initPTS = this.initPTS[frag.cc];
    transmuxer.push(payload, initSegmentData, audioCodec, videoCodec, frag, part, details.totalduration, accurateTimeOffset, chunkMeta, initPTS);
  };

  _proto.onAudioTrackSwitching = function onAudioTrackSwitching(event, data) {
    // if any URL found on new audio track, it is an alternate audio track
    var fromAltAudio = this.altAudio;
    var altAudio = !!data.url;
    var trackId = data.id; // if we switch on main audio, ensure that main fragment scheduling is synced with media.buffered
    // don't do anything if we switch to alt audio: audio stream controller is handling it.
    // we will just have to change buffer scheduling on audioTrackSwitched

    if (!altAudio) {
      if (this.mediaBuffer !== this.media) {
        this.log('Switching on main audio, use media.buffered to schedule main fragment loading');
        this.mediaBuffer = this.media;
        var fragCurrent = this.fragCurrent; // we need to refill audio buffer from main: cancel any frag loading to speed up audio switch

        if (fragCurrent !== null && fragCurrent !== void 0 && fragCurrent.loader) {
          this.log('Switching to main audio track, cancel main fragment load');
          fragCurrent.loader.abort();
        } // destroy transmuxer to force init segment generation (following audio switch)


        this.resetTransmuxer(); // switch to IDLE state to load new fragment

        this.resetLoadingState();
      } else if (this.audioOnly) {
        // Reset audio transmuxer so when switching back to main audio we're not still appending where we left off
        this.resetTransmuxer();
      }

      var hls = this.hls; // If switching from alt to main audio, flush all audio and trigger track switched

      if (fromAltAudio) {
        hls.trigger(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].BUFFER_FLUSHING, {
          startOffset: 0,
          endOffset: Number.POSITIVE_INFINITY,
          type: 'audio'
        });
      }

      hls.trigger(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].AUDIO_TRACK_SWITCHED, {
        id: trackId
      });
    }
  };

  _proto.onAudioTrackSwitched = function onAudioTrackSwitched(event, data) {
    var trackId = data.id;
    var altAudio = !!this.hls.audioTracks[trackId].url;

    if (altAudio) {
      var videoBuffer = this.videoBuffer; // if we switched on alternate audio, ensure that main fragment scheduling is synced with video sourcebuffer buffered

      if (videoBuffer && this.mediaBuffer !== videoBuffer) {
        this.log('Switching on alternate audio, use video.buffered to schedule main fragment loading');
        this.mediaBuffer = videoBuffer;
      }
    }

    this.altAudio = altAudio;
    this.tick();
  };

  _proto.onBufferCreated = function onBufferCreated(event, data) {
    var tracks = data.tracks;
    var mediaTrack;
    var name;
    var alternate = false;

    for (var type in tracks) {
      var track = tracks[type];

      if (track.id === 'main') {
        name = type;
        mediaTrack = track; // keep video source buffer reference

        if (type === 'video') {
          var videoTrack = tracks[type];

          if (videoTrack) {
            this.videoBuffer = videoTrack.buffer;
          }
        }
      } else {
        alternate = true;
      }
    }

    if (alternate && mediaTrack) {
      this.log("Alternate track found, use " + name + ".buffered to schedule main fragment loading");
      this.mediaBuffer = mediaTrack.buffer;
    } else {
      this.mediaBuffer = this.media;
    }
  };

  _proto.onFragBuffered = function onFragBuffered(event, data) {
    var frag = data.frag,
        part = data.part;

    if (frag && frag.type !== _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistLevelType"].MAIN) {
      return;
    }

    if (this.fragContextChanged(frag)) {
      // If a level switch was requested while a fragment was buffering, it will emit the FRAG_BUFFERED event upon completion
      // Avoid setting state back to IDLE, since that will interfere with a level switch
      this.warn("Fragment " + frag.sn + (part ? ' p: ' + part.index : '') + " of level " + frag.level + " finished buffering, but was aborted. state: " + this.state);

      if (this.state === _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].PARSED) {
        this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].IDLE;
      }

      return;
    }

    var stats = part ? part.stats : frag.stats;
    this.fragLastKbps = Math.round(8 * stats.total / (stats.buffering.end - stats.loading.first));

    if (frag.sn !== 'initSegment') {
      this.fragPrevious = frag;
    }

    this.fragBufferedComplete(frag, part);
  };

  _proto.onError = function onError(event, data) {
    switch (data.details) {
      case _errors__WEBPACK_IMPORTED_MODULE_11__["ErrorDetails"].FRAG_LOAD_ERROR:
      case _errors__WEBPACK_IMPORTED_MODULE_11__["ErrorDetails"].FRAG_LOAD_TIMEOUT:
      case _errors__WEBPACK_IMPORTED_MODULE_11__["ErrorDetails"].KEY_LOAD_ERROR:
      case _errors__WEBPACK_IMPORTED_MODULE_11__["ErrorDetails"].KEY_LOAD_TIMEOUT:
        this.onFragmentOrKeyLoadError(_types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistLevelType"].MAIN, data);
        break;

      case _errors__WEBPACK_IMPORTED_MODULE_11__["ErrorDetails"].LEVEL_LOAD_ERROR:
      case _errors__WEBPACK_IMPORTED_MODULE_11__["ErrorDetails"].LEVEL_LOAD_TIMEOUT:
        if (this.state !== _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].ERROR) {
          if (data.fatal) {
            // if fatal error, stop processing
            this.warn("" + data.details);
            this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].ERROR;
          } else {
            // in case of non fatal error while loading level, if level controller is not retrying to load level , switch back to IDLE
            if (!data.levelRetry && this.state === _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].WAITING_LEVEL) {
              this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].IDLE;
            }
          }
        }

        break;

      case _errors__WEBPACK_IMPORTED_MODULE_11__["ErrorDetails"].BUFFER_FULL_ERROR:
        // if in appending state
        if (data.parent === 'main' && (this.state === _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].PARSING || this.state === _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].PARSED)) {
          var flushBuffer = true;
          var bufferedInfo = this.getFwdBufferInfo(this.media, _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistLevelType"].MAIN); // 0.5 : tolerance needed as some browsers stalls playback before reaching buffered end
          // reduce max buf len if current position is buffered

          if (bufferedInfo && bufferedInfo.len > 0.5) {
            flushBuffer = !this.reduceMaxBufferLength(bufferedInfo.len);
          }

          if (flushBuffer) {
            // current position is not buffered, but browser is still complaining about buffer full error
            // this happens on IE/Edge, refer to https://github.com/video-dev/hls.js/pull/708
            // in that case flush the whole buffer to recover
            this.warn('buffer full error also media.currentTime is not buffered, flush main'); // flush main buffer

            this.immediateLevelSwitch();
          }

          this.resetLoadingState();
        }

        break;

      default:
        break;
    }
  } // Checks the health of the buffer and attempts to resolve playback stalls.
  ;

  _proto.checkBuffer = function checkBuffer() {
    var media = this.media,
        gapController = this.gapController;

    if (!media || !gapController || !media.readyState) {
      // Exit early if we don't have media or if the media hasn't buffered anything yet (readyState 0)
      return;
    } // Check combined buffer


    var buffered = _utils_buffer_helper__WEBPACK_IMPORTED_MODULE_4__["BufferHelper"].getBuffered(media);

    if (!this.loadedmetadata && buffered.length) {
      this.loadedmetadata = true;
      this.seekToStartPos();
    } else {
      // Resolve gaps using the main buffer, whose ranges are the intersections of the A/V sourcebuffers
      gapController.poll(this.lastCurrentTime);
    }

    this.lastCurrentTime = media.currentTime;
  };

  _proto.onFragLoadEmergencyAborted = function onFragLoadEmergencyAborted() {
    this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].IDLE; // if loadedmetadata is not set, it means that we are emergency switch down on first frag
    // in that case, reset startFragRequested flag

    if (!this.loadedmetadata) {
      this.startFragRequested = false;
      this.nextLoadPosition = this.startPosition;
    }

    this.tickImmediate();
  };

  _proto.onBufferFlushed = function onBufferFlushed(event, _ref) {
    var type = _ref.type;

    if (type !== _loader_fragment__WEBPACK_IMPORTED_MODULE_7__["ElementaryStreamTypes"].AUDIO || this.audioOnly && !this.altAudio) {
      var media = (type === _loader_fragment__WEBPACK_IMPORTED_MODULE_7__["ElementaryStreamTypes"].VIDEO ? this.videoBuffer : this.mediaBuffer) || this.media;
      this.afterBufferFlushed(media, type, _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistLevelType"].MAIN);
    }
  };

  _proto.onLevelsUpdated = function onLevelsUpdated(event, data) {
    this.levels = data.levels;
  };

  _proto.swapAudioCodec = function swapAudioCodec() {
    this.audioCodecSwap = !this.audioCodecSwap;
  }
  /**
   * Seeks to the set startPosition if not equal to the mediaElement's current time.
   * @private
   */
  ;

  _proto.seekToStartPos = function seekToStartPos() {
    var media = this.media;
    var currentTime = media.currentTime;
    var startPosition = this.startPosition; // only adjust currentTime if different from startPosition or if startPosition not buffered
    // at that stage, there should be only one buffered range, as we reach that code after first fragment has been buffered

    if (startPosition >= 0 && currentTime < startPosition) {
      if (media.seeking) {
        _utils_logger__WEBPACK_IMPORTED_MODULE_12__["logger"].log("could not seek to " + startPosition + ", already seeking at " + currentTime);
        return;
      }

      var buffered = _utils_buffer_helper__WEBPACK_IMPORTED_MODULE_4__["BufferHelper"].getBuffered(media);
      var bufferStart = buffered.length ? buffered.start(0) : 0;
      var delta = bufferStart - startPosition;

      if (delta > 0 && (delta < this.config.maxBufferHole || delta < this.config.maxFragLookUpTolerance)) {
        _utils_logger__WEBPACK_IMPORTED_MODULE_12__["logger"].log("adjusting start position by " + delta + " to match buffer start");
        startPosition += delta;
        this.startPosition = startPosition;
      }

      this.log("seek to target start position " + startPosition + " from current time " + currentTime);
      media.currentTime = startPosition;
    }
  };

  _proto._getAudioCodec = function _getAudioCodec(currentLevel) {
    var audioCodec = this.config.defaultAudioCodec || currentLevel.audioCodec;

    if (this.audioCodecSwap && audioCodec) {
      this.log('Swapping audio codec');

      if (audioCodec.indexOf('mp4a.40.5') !== -1) {
        audioCodec = 'mp4a.40.2';
      } else {
        audioCodec = 'mp4a.40.5';
      }
    }

    return audioCodec;
  };

  _proto._loadBitrateTestFrag = function _loadBitrateTestFrag(frag) {
    var _this2 = this;

    this._doFragLoad(frag).then(function (data) {
      var hls = _this2.hls;

      if (!data || hls.nextLoadLevel || _this2.fragContextChanged(frag)) {
        return;
      }

      _this2.fragLoadError = 0;
      _this2.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].IDLE;
      _this2.startFragRequested = false;
      _this2.bitrateTest = false;
      var stats = frag.stats; // Bitrate tests fragments are neither parsed nor buffered

      stats.parsing.start = stats.parsing.end = stats.buffering.start = stats.buffering.end = self.performance.now();
      hls.trigger(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].FRAG_LOADED, data);
    });
  };

  _proto._handleTransmuxComplete = function _handleTransmuxComplete(transmuxResult) {
    var _id3$samples;

    var id = 'main';
    var hls = this.hls;
    var remuxResult = transmuxResult.remuxResult,
        chunkMeta = transmuxResult.chunkMeta;
    var context = this.getCurrentContext(chunkMeta);

    if (!context) {
      this.warn("The loading context changed while buffering fragment " + chunkMeta.sn + " of level " + chunkMeta.level + ". This chunk will not be buffered.");
      this.resetLiveStartWhenNotLoaded(chunkMeta.level);
      return;
    }

    var frag = context.frag,
        part = context.part,
        level = context.level;
    var video = remuxResult.video,
        text = remuxResult.text,
        id3 = remuxResult.id3,
        initSegment = remuxResult.initSegment; // The audio-stream-controller handles audio buffering if Hls.js is playing an alternate audio track

    var audio = this.altAudio ? undefined : remuxResult.audio; // Check if the current fragment has been aborted. We check this by first seeing if we're still playing the current level.
    // If we are, subsequently check if the currently loading fragment (fragCurrent) has changed.

    if (this.fragContextChanged(frag)) {
      return;
    }

    this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].PARSING;

    if (initSegment) {
      if (initSegment.tracks) {
        this._bufferInitSegment(level, initSegment.tracks, frag, chunkMeta);

        hls.trigger(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].FRAG_PARSING_INIT_SEGMENT, {
          frag: frag,
          id: id,
          tracks: initSegment.tracks
        });
      } // This would be nice if Number.isFinite acted as a typeguard, but it doesn't. See: https://github.com/Microsoft/TypeScript/issues/10038


      var initPTS = initSegment.initPTS;
      var timescale = initSegment.timescale;

      if (Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(initPTS)) {
        this.initPTS[frag.cc] = initPTS;
        hls.trigger(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].INIT_PTS_FOUND, {
          frag: frag,
          id: id,
          initPTS: initPTS,
          timescale: timescale
        });
      }
    } // Avoid buffering if backtracking this fragment


    if (video && remuxResult.independent !== false) {
      if (level.details) {
        var startPTS = video.startPTS,
            endPTS = video.endPTS,
            startDTS = video.startDTS,
            endDTS = video.endDTS;

        if (part) {
          part.elementaryStreams[video.type] = {
            startPTS: startPTS,
            endPTS: endPTS,
            startDTS: startDTS,
            endDTS: endDTS
          };
        } else {
          if (video.firstKeyFrame && video.independent) {
            this.couldBacktrack = true;
          }

          if (video.dropped && video.independent) {
            // Backtrack if dropped frames create a gap after currentTime
            var pos = this.getLoadPosition() + this.config.maxBufferHole;

            if (pos < startPTS) {
              this.backtrack(frag);
              return;
            } // Set video stream start to fragment start so that truncated samples do not distort the timeline, and mark it partial


            frag.setElementaryStreamInfo(video.type, frag.start, endPTS, frag.start, endDTS, true);
          }
        }

        frag.setElementaryStreamInfo(video.type, startPTS, endPTS, startDTS, endDTS);
        this.bufferFragmentData(video, frag, part, chunkMeta);
      }
    } else if (remuxResult.independent === false) {
      this.backtrack(frag);
      return;
    }

    if (audio) {
      var _startPTS = audio.startPTS,
          _endPTS = audio.endPTS,
          _startDTS = audio.startDTS,
          _endDTS = audio.endDTS;

      if (part) {
        part.elementaryStreams[_loader_fragment__WEBPACK_IMPORTED_MODULE_7__["ElementaryStreamTypes"].AUDIO] = {
          startPTS: _startPTS,
          endPTS: _endPTS,
          startDTS: _startDTS,
          endDTS: _endDTS
        };
      }

      frag.setElementaryStreamInfo(_loader_fragment__WEBPACK_IMPORTED_MODULE_7__["ElementaryStreamTypes"].AUDIO, _startPTS, _endPTS, _startDTS, _endDTS);
      this.bufferFragmentData(audio, frag, part, chunkMeta);
    }

    if (id3 !== null && id3 !== void 0 && (_id3$samples = id3.samples) !== null && _id3$samples !== void 0 && _id3$samples.length) {
      var emittedID3 = {
        frag: frag,
        id: id,
        samples: id3.samples
      };
      hls.trigger(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].FRAG_PARSING_METADATA, emittedID3);
    }

    if (text) {
      var emittedText = {
        frag: frag,
        id: id,
        samples: text.samples
      };
      hls.trigger(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].FRAG_PARSING_USERDATA, emittedText);
    }
  };

  _proto._bufferInitSegment = function _bufferInitSegment(currentLevel, tracks, frag, chunkMeta) {
    var _this3 = this;

    if (this.state !== _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].PARSING) {
      return;
    }

    this.audioOnly = !!tracks.audio && !tracks.video; // if audio track is expected to come from audio stream controller, discard any coming from main

    if (this.altAudio && !this.audioOnly) {
      delete tracks.audio;
    } // include levelCodec in audio and video tracks


    var audio = tracks.audio,
        video = tracks.video,
        audiovideo = tracks.audiovideo;

    if (audio) {
      var audioCodec = currentLevel.audioCodec;
      var ua = navigator.userAgent.toLowerCase();

      if (this.audioCodecSwitch) {
        if (audioCodec) {
          if (audioCodec.indexOf('mp4a.40.5') !== -1) {
            audioCodec = 'mp4a.40.2';
          } else {
            audioCodec = 'mp4a.40.5';
          }
        } // In the case that AAC and HE-AAC audio codecs are signalled in manifest,
        // force HE-AAC, as it seems that most browsers prefers it.
        // don't force HE-AAC if mono stream, or in Firefox


        if (audio.metadata.channelCount !== 1 && ua.indexOf('firefox') === -1) {
          audioCodec = 'mp4a.40.5';
        }
      } // HE-AAC is broken on Android, always signal audio codec as AAC even if variant manifest states otherwise


      if (ua.indexOf('android') !== -1 && audio.container !== 'audio/mpeg') {
        // Exclude mpeg audio
        audioCodec = 'mp4a.40.2';
        this.log("Android: force audio codec to " + audioCodec);
      }

      if (currentLevel.audioCodec && currentLevel.audioCodec !== audioCodec) {
        this.log("Swapping manifest audio codec \"" + currentLevel.audioCodec + "\" for \"" + audioCodec + "\"");
      }

      audio.levelCodec = audioCodec;
      audio.id = 'main';
      this.log("Init audio buffer, container:" + audio.container + ", codecs[selected/level/parsed]=[" + (audioCodec || '') + "/" + (currentLevel.audioCodec || '') + "/" + audio.codec + "]");
    }

    if (video) {
      video.levelCodec = currentLevel.videoCodec;
      video.id = 'main';
      this.log("Init video buffer, container:" + video.container + ", codecs[level/parsed]=[" + (currentLevel.videoCodec || '') + "/" + video.codec + "]");
    }

    if (audiovideo) {
      this.log("Init audiovideo buffer, container:" + audiovideo.container + ", codecs[level/parsed]=[" + (currentLevel.attrs.CODECS || '') + "/" + audiovideo.codec + "]");
    }

    this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].BUFFER_CODECS, tracks); // loop through tracks that are going to be provided to bufferController

    Object.keys(tracks).forEach(function (trackName) {
      var track = tracks[trackName];
      var initSegment = track.initSegment;

      if (initSegment !== null && initSegment !== void 0 && initSegment.byteLength) {
        _this3.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].BUFFER_APPENDING, {
          type: trackName,
          data: initSegment,
          frag: frag,
          part: null,
          chunkMeta: chunkMeta,
          parent: frag.type
        });
      }
    }); // trigger handler right now

    this.tick();
  };

  _proto.backtrack = function backtrack(frag) {
    this.couldBacktrack = true; // Causes findFragments to backtrack through fragments to find the keyframe

    this.resetTransmuxer();
    this.flushBufferGap(frag);
    var data = this.fragmentTracker.backtrack(frag);
    this.fragPrevious = null;
    this.nextLoadPosition = frag.start;

    if (data) {
      this.resetFragmentLoading(frag);
    } else {
      // Change state to BACKTRACKING so that fragmentEntity.backtrack data can be added after _doFragLoad
      this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["State"].BACKTRACKING;
    }
  };

  _proto.checkFragmentChanged = function checkFragmentChanged() {
    var video = this.media;
    var fragPlayingCurrent = null;

    if (video && video.readyState > 1 && video.seeking === false) {
      var currentTime = video.currentTime;
      /* if video element is in seeked state, currentTime can only increase.
        (assuming that playback rate is positive ...)
        As sometimes currentTime jumps back to zero after a
        media decode error, check this, to avoid seeking back to
        wrong position after a media decode error
      */

      if (_utils_buffer_helper__WEBPACK_IMPORTED_MODULE_4__["BufferHelper"].isBuffered(video, currentTime)) {
        fragPlayingCurrent = this.getAppendedFrag(currentTime);
      } else if (_utils_buffer_helper__WEBPACK_IMPORTED_MODULE_4__["BufferHelper"].isBuffered(video, currentTime + 0.1)) {
        /* ensure that FRAG_CHANGED event is triggered at startup,
          when first video frame is displayed and playback is paused.
          add a tolerance of 100ms, in case current position is not buffered,
          check if current pos+100ms is buffered and use that buffer range
          for FRAG_CHANGED event reporting */
        fragPlayingCurrent = this.getAppendedFrag(currentTime + 0.1);
      }

      if (fragPlayingCurrent) {
        var fragPlaying = this.fragPlaying;
        var fragCurrentLevel = fragPlayingCurrent.level;

        if (!fragPlaying || fragPlayingCurrent.sn !== fragPlaying.sn || fragPlaying.level !== fragCurrentLevel || fragPlayingCurrent.urlId !== fragPlaying.urlId) {
          this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].FRAG_CHANGED, {
            frag: fragPlayingCurrent
          });

          if (!fragPlaying || fragPlaying.level !== fragCurrentLevel) {
            this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].LEVEL_SWITCHED, {
              level: fragCurrentLevel
            });
          }

          this.fragPlaying = fragPlayingCurrent;
        }
      }
    }
  };

  _createClass(StreamController, [{
    key: "nextLevel",
    get: function get() {
      var frag = this.nextBufferedFrag;

      if (frag) {
        return frag.level;
      } else {
        return -1;
      }
    }
  }, {
    key: "currentLevel",
    get: function get() {
      var media = this.media;

      if (media) {
        var fragPlayingCurrent = this.getAppendedFrag(media.currentTime);

        if (fragPlayingCurrent) {
          return fragPlayingCurrent.level;
        }
      }

      return -1;
    }
  }, {
    key: "nextBufferedFrag",
    get: function get() {
      var media = this.media;

      if (media) {
        // first get end range of current fragment
        var fragPlayingCurrent = this.getAppendedFrag(media.currentTime);
        return this.followingBufferedFrag(fragPlayingCurrent);
      } else {
        return null;
      }
    }
  }, {
    key: "forceStartLoad",
    get: function get() {
      return this._forceStartLoad;
    }
  }]);

  return StreamController;
}(_base_stream_controller__WEBPACK_IMPORTED_MODULE_1__["default"]);



/***/ }),

/***/ "./src/controller/subtitle-stream-controller.ts":
/*!******************************************************!*\
  !*** ./src/controller/subtitle-stream-controller.ts ***!
  \******************************************************/
/*! exports provided: SubtitleStreamController */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "SubtitleStreamController", function() { return SubtitleStreamController; });
/* harmony import */ var _events__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../events */ "./src/events.ts");
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../utils/logger */ "./src/utils/logger.ts");
/* harmony import */ var _utils_buffer_helper__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../utils/buffer-helper */ "./src/utils/buffer-helper.ts");
/* harmony import */ var _fragment_finders__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./fragment-finders */ "./src/controller/fragment-finders.ts");
/* harmony import */ var _utils_discontinuities__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../utils/discontinuities */ "./src/utils/discontinuities.ts");
/* harmony import */ var _level_helper__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ./level-helper */ "./src/controller/level-helper.ts");
/* harmony import */ var _fragment_tracker__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ./fragment-tracker */ "./src/controller/fragment-tracker.ts");
/* harmony import */ var _base_stream_controller__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ./base-stream-controller */ "./src/controller/base-stream-controller.ts");
/* harmony import */ var _types_loader__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! ../types/loader */ "./src/types/loader.ts");
/* harmony import */ var _types_level__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(/*! ../types/level */ "./src/types/level.ts");
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }











var TICK_INTERVAL = 500; // how often to tick in ms

var SubtitleStreamController = /*#__PURE__*/function (_BaseStreamController) {
  _inheritsLoose(SubtitleStreamController, _BaseStreamController);

  function SubtitleStreamController(hls, fragmentTracker) {
    var _this;

    _this = _BaseStreamController.call(this, hls, fragmentTracker, '[subtitle-stream-controller]') || this;
    _this.levels = [];
    _this.currentTrackId = -1;
    _this.tracksBuffered = [];
    _this.mainDetails = null;

    _this._registerListeners();

    return _this;
  }

  var _proto = SubtitleStreamController.prototype;

  _proto.onHandlerDestroying = function onHandlerDestroying() {
    this._unregisterListeners();

    this.mainDetails = null;
  };

  _proto._registerListeners = function _registerListeners() {
    var hls = this.hls;
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MEDIA_ATTACHED, this.onMediaAttached, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MEDIA_DETACHING, this.onMediaDetaching, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MANIFEST_LOADING, this.onManifestLoading, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].LEVEL_LOADED, this.onLevelLoaded, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].ERROR, this.onError, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].SUBTITLE_TRACKS_UPDATED, this.onSubtitleTracksUpdated, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].SUBTITLE_TRACK_SWITCH, this.onSubtitleTrackSwitch, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].SUBTITLE_TRACK_LOADED, this.onSubtitleTrackLoaded, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].SUBTITLE_FRAG_PROCESSED, this.onSubtitleFragProcessed, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].BUFFER_FLUSHING, this.onBufferFlushing, this);
  };

  _proto._unregisterListeners = function _unregisterListeners() {
    var hls = this.hls;
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MEDIA_ATTACHED, this.onMediaAttached, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MEDIA_DETACHING, this.onMediaDetaching, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MANIFEST_LOADING, this.onManifestLoading, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].LEVEL_LOADED, this.onLevelLoaded, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].ERROR, this.onError, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].SUBTITLE_TRACKS_UPDATED, this.onSubtitleTracksUpdated, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].SUBTITLE_TRACK_SWITCH, this.onSubtitleTrackSwitch, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].SUBTITLE_TRACK_LOADED, this.onSubtitleTrackLoaded, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].SUBTITLE_FRAG_PROCESSED, this.onSubtitleFragProcessed, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].BUFFER_FLUSHING, this.onBufferFlushing, this);
  };

  _proto.startLoad = function startLoad() {
    this.stopLoad();
    this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_7__["State"].IDLE;
    this.setInterval(TICK_INTERVAL);
    this.tick();
  };

  _proto.onManifestLoading = function onManifestLoading() {
    this.mainDetails = null;
    this.fragmentTracker.removeAllFragments();
  };

  _proto.onLevelLoaded = function onLevelLoaded(event, data) {
    this.mainDetails = data.details;
  };

  _proto.onSubtitleFragProcessed = function onSubtitleFragProcessed(event, data) {
    var frag = data.frag,
        success = data.success;
    this.fragPrevious = frag;
    this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_7__["State"].IDLE;

    if (!success) {
      return;
    }

    var buffered = this.tracksBuffered[this.currentTrackId];

    if (!buffered) {
      return;
    } // Create/update a buffered array matching the interface used by BufferHelper.bufferedInfo
    // so we can re-use the logic used to detect how much has been buffered


    var timeRange;
    var fragStart = frag.start;

    for (var i = 0; i < buffered.length; i++) {
      if (fragStart >= buffered[i].start && fragStart <= buffered[i].end) {
        timeRange = buffered[i];
        break;
      }
    }

    var fragEnd = frag.start + frag.duration;

    if (timeRange) {
      timeRange.end = fragEnd;
    } else {
      timeRange = {
        start: fragStart,
        end: fragEnd
      };
      buffered.push(timeRange);
    }

    this.fragmentTracker.fragBuffered(frag);
  };

  _proto.onBufferFlushing = function onBufferFlushing(event, data) {
    var startOffset = data.startOffset,
        endOffset = data.endOffset;

    if (startOffset === 0 && endOffset !== Number.POSITIVE_INFINITY) {
      var currentTrackId = this.currentTrackId,
          levels = this.levels;

      if (!levels.length || !levels[currentTrackId] || !levels[currentTrackId].details) {
        return;
      }

      var trackDetails = levels[currentTrackId].details;
      var targetDuration = trackDetails.targetduration;
      var endOffsetSubtitles = endOffset - targetDuration;

      if (endOffsetSubtitles <= 0) {
        return;
      }

      data.endOffsetSubtitles = Math.max(0, endOffsetSubtitles);
      this.tracksBuffered.forEach(function (buffered) {
        for (var i = 0; i < buffered.length;) {
          if (buffered[i].end <= endOffsetSubtitles) {
            buffered.shift();
            continue;
          } else if (buffered[i].start < endOffsetSubtitles) {
            buffered[i].start = endOffsetSubtitles;
          } else {
            break;
          }

          i++;
        }
      });
      this.fragmentTracker.removeFragmentsInRange(startOffset, endOffsetSubtitles, _types_loader__WEBPACK_IMPORTED_MODULE_8__["PlaylistLevelType"].SUBTITLE);
    }
  } // If something goes wrong, proceed to next frag, if we were processing one.
  ;

  _proto.onError = function onError(event, data) {
    var _this$fragCurrent;

    var frag = data.frag; // don't handle error not related to subtitle fragment

    if (!frag || frag.type !== _types_loader__WEBPACK_IMPORTED_MODULE_8__["PlaylistLevelType"].SUBTITLE) {
      return;
    }

    if ((_this$fragCurrent = this.fragCurrent) !== null && _this$fragCurrent !== void 0 && _this$fragCurrent.loader) {
      this.fragCurrent.loader.abort();
    }

    this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_7__["State"].IDLE;
  } // Got all new subtitle levels.
  ;

  _proto.onSubtitleTracksUpdated = function onSubtitleTracksUpdated(event, _ref) {
    var _this2 = this;

    var subtitleTracks = _ref.subtitleTracks;
    this.tracksBuffered = [];
    this.levels = subtitleTracks.map(function (mediaPlaylist) {
      return new _types_level__WEBPACK_IMPORTED_MODULE_9__["Level"](mediaPlaylist);
    });
    this.fragmentTracker.removeAllFragments();
    this.fragPrevious = null;
    this.levels.forEach(function (level) {
      _this2.tracksBuffered[level.id] = [];
    });
    this.mediaBuffer = null;
  };

  _proto.onSubtitleTrackSwitch = function onSubtitleTrackSwitch(event, data) {
    this.currentTrackId = data.id;

    if (!this.levels.length || this.currentTrackId === -1) {
      this.clearInterval();
      return;
    } // Check if track has the necessary details to load fragments


    var currentTrack = this.levels[this.currentTrackId];

    if (currentTrack !== null && currentTrack !== void 0 && currentTrack.details) {
      this.mediaBuffer = this.mediaBufferTimeRanges;
    } else {
      this.mediaBuffer = null;
    }

    if (currentTrack) {
      this.setInterval(TICK_INTERVAL);
    }
  } // Got a new set of subtitle fragments.
  ;

  _proto.onSubtitleTrackLoaded = function onSubtitleTrackLoaded(event, data) {
    var _track$details;

    var newDetails = data.details,
        trackId = data.id;
    var currentTrackId = this.currentTrackId,
        levels = this.levels;

    if (!levels.length) {
      return;
    }

    var track = levels[currentTrackId];

    if (trackId >= levels.length || trackId !== currentTrackId || !track) {
      return;
    }

    this.mediaBuffer = this.mediaBufferTimeRanges;

    if (newDetails.live || (_track$details = track.details) !== null && _track$details !== void 0 && _track$details.live) {
      var mainDetails = this.mainDetails;

      if (newDetails.deltaUpdateFailed || !mainDetails) {
        return;
      }

      var mainSlidingStartFragment = mainDetails.fragments[0];

      if (!track.details) {
        if (newDetails.hasProgramDateTime && mainDetails.hasProgramDateTime) {
          Object(_utils_discontinuities__WEBPACK_IMPORTED_MODULE_4__["alignMediaPlaylistByPDT"])(newDetails, mainDetails);
        } else if (mainSlidingStartFragment) {
          // line up live playlist with main so that fragments in range are loaded
          Object(_level_helper__WEBPACK_IMPORTED_MODULE_5__["addSliding"])(newDetails, mainSlidingStartFragment.start);
        }
      } else {
        var sliding = this.alignPlaylists(newDetails, track.details);

        if (sliding === 0 && mainSlidingStartFragment) {
          // realign with main when there is no overlap with last refresh
          Object(_level_helper__WEBPACK_IMPORTED_MODULE_5__["addSliding"])(newDetails, mainSlidingStartFragment.start);
        }
      }
    }

    track.details = newDetails;
    this.levelLastLoaded = trackId; // trigger handler right now

    this.tick(); // If playlist is misaligned because of bad PDT or drift, delete details to resync with main on reload

    if (newDetails.live && !this.fragCurrent && this.media && this.state === _base_stream_controller__WEBPACK_IMPORTED_MODULE_7__["State"].IDLE) {
      var foundFrag = Object(_fragment_finders__WEBPACK_IMPORTED_MODULE_3__["findFragmentByPTS"])(null, newDetails.fragments, this.media.currentTime, 0);

      if (!foundFrag) {
        this.warn('Subtitle playlist not aligned with playback');
        track.details = undefined;
      }
    }
  };

  _proto._handleFragmentLoadComplete = function _handleFragmentLoadComplete(fragLoadedData) {
    var frag = fragLoadedData.frag,
        payload = fragLoadedData.payload;
    var decryptData = frag.decryptdata;
    var hls = this.hls;

    if (this.fragContextChanged(frag)) {
      return;
    } // check to see if the payload needs to be decrypted


    if (payload && payload.byteLength > 0 && decryptData && decryptData.key && decryptData.iv && decryptData.method === 'AES-128') {
      var startTime = performance.now(); // decrypt the subtitles

      this.decrypter.webCryptoDecrypt(new Uint8Array(payload), decryptData.key.buffer, decryptData.iv.buffer).then(function (decryptedData) {
        var endTime = performance.now();
        hls.trigger(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].FRAG_DECRYPTED, {
          frag: frag,
          payload: decryptedData,
          stats: {
            tstart: startTime,
            tdecrypt: endTime
          }
        });
      });
    }
  };

  _proto.doTick = function doTick() {
    if (!this.media) {
      this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_7__["State"].IDLE;
      return;
    }

    if (this.state === _base_stream_controller__WEBPACK_IMPORTED_MODULE_7__["State"].IDLE) {
      var _foundFrag;

      var currentTrackId = this.currentTrackId,
          levels = this.levels;

      if (!levels.length || !levels[currentTrackId] || !levels[currentTrackId].details) {
        return;
      } // Expand range of subs loaded by one target-duration in either direction to make up for misaligned playlists


      var trackDetails = levels[currentTrackId].details;
      var targetDuration = trackDetails.targetduration;
      var config = this.config,
          media = this.media;
      var bufferedInfo = _utils_buffer_helper__WEBPACK_IMPORTED_MODULE_2__["BufferHelper"].bufferedInfo(this.mediaBufferTimeRanges, media.currentTime - targetDuration, config.maxBufferHole);
      var targetBufferTime = bufferedInfo.end,
          bufferLen = bufferedInfo.len;
      var maxBufLen = this.getMaxBufferLength() + targetDuration;

      if (bufferLen > maxBufLen) {
        return;
      }

      console.assert(trackDetails, 'Subtitle track details are defined on idle subtitle stream controller tick');
      var fragments = trackDetails.fragments;
      var fragLen = fragments.length;
      var end = trackDetails.edge;
      var foundFrag;
      var fragPrevious = this.fragPrevious;

      if (targetBufferTime < end) {
        var maxFragLookUpTolerance = config.maxFragLookUpTolerance;

        if (fragPrevious && trackDetails.hasProgramDateTime) {
          foundFrag = Object(_fragment_finders__WEBPACK_IMPORTED_MODULE_3__["findFragmentByPDT"])(fragments, fragPrevious.endProgramDateTime, maxFragLookUpTolerance);
        }

        if (!foundFrag) {
          foundFrag = Object(_fragment_finders__WEBPACK_IMPORTED_MODULE_3__["findFragmentByPTS"])(fragPrevious, fragments, targetBufferTime, maxFragLookUpTolerance);

          if (!foundFrag && fragPrevious && fragPrevious.start < fragments[0].start) {
            foundFrag = fragments[0];
          }
        }
      } else {
        foundFrag = fragments[fragLen - 1];
      }

      if ((_foundFrag = foundFrag) !== null && _foundFrag !== void 0 && _foundFrag.encrypted) {
        _utils_logger__WEBPACK_IMPORTED_MODULE_1__["logger"].log("Loading key for " + foundFrag.sn);
        this.state = _base_stream_controller__WEBPACK_IMPORTED_MODULE_7__["State"].KEY_LOADING;
        this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].KEY_LOADING, {
          frag: foundFrag
        });
      } else if (foundFrag && this.fragmentTracker.getState(foundFrag) === _fragment_tracker__WEBPACK_IMPORTED_MODULE_6__["FragmentState"].NOT_LOADED) {
        // only load if fragment is not loaded
        this.loadFragment(foundFrag, trackDetails, targetBufferTime);
      }
    }
  };

  _proto.loadFragment = function loadFragment(frag, levelDetails, targetBufferTime) {
    this.fragCurrent = frag;

    _BaseStreamController.prototype.loadFragment.call(this, frag, levelDetails, targetBufferTime);
  };

  _createClass(SubtitleStreamController, [{
    key: "mediaBufferTimeRanges",
    get: function get() {
      return this.tracksBuffered[this.currentTrackId] || [];
    }
  }]);

  return SubtitleStreamController;
}(_base_stream_controller__WEBPACK_IMPORTED_MODULE_7__["default"]);

/***/ }),

/***/ "./src/controller/subtitle-track-controller.ts":
/*!*****************************************************!*\
  !*** ./src/controller/subtitle-track-controller.ts ***!
  \*****************************************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony import */ var _events__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../events */ "./src/events.ts");
/* harmony import */ var _utils_texttrack_utils__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../utils/texttrack-utils */ "./src/utils/texttrack-utils.ts");
/* harmony import */ var _base_playlist_controller__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./base-playlist-controller */ "./src/controller/base-playlist-controller.ts");
/* harmony import */ var _types_loader__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../types/loader */ "./src/types/loader.ts");
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }






var SubtitleTrackController = /*#__PURE__*/function (_BasePlaylistControll) {
  _inheritsLoose(SubtitleTrackController, _BasePlaylistControll);

  // Enable/disable subtitle display rendering
  function SubtitleTrackController(hls) {
    var _this;

    _this = _BasePlaylistControll.call(this, hls, '[subtitle-track-controller]') || this;
    _this.media = null;
    _this.tracks = [];
    _this.groupId = null;
    _this.tracksInGroup = [];
    _this.trackId = -1;
    _this.selectDefaultTrack = true;
    _this.queuedDefaultTrack = -1;

    _this.trackChangeListener = function () {
      return _this.onTextTracksChanged();
    };

    _this.asyncPollTrackChange = function () {
      return _this.pollTrackChange(0);
    };

    _this.useTextTrackPolling = false;
    _this.subtitlePollingInterval = -1;
    _this.subtitleDisplay = true;

    _this.registerListeners();

    return _this;
  }

  var _proto = SubtitleTrackController.prototype;

  _proto.destroy = function destroy() {
    this.unregisterListeners();
    this.tracks.length = 0;
    this.tracksInGroup.length = 0;
    this.trackChangeListener = this.asyncPollTrackChange = null;

    _BasePlaylistControll.prototype.destroy.call(this);
  };

  _proto.registerListeners = function registerListeners() {
    var hls = this.hls;
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MEDIA_ATTACHED, this.onMediaAttached, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MEDIA_DETACHING, this.onMediaDetaching, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MANIFEST_LOADING, this.onManifestLoading, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MANIFEST_PARSED, this.onManifestParsed, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].LEVEL_LOADING, this.onLevelLoading, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].LEVEL_SWITCHING, this.onLevelSwitching, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].SUBTITLE_TRACK_LOADED, this.onSubtitleTrackLoaded, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].ERROR, this.onError, this);
  };

  _proto.unregisterListeners = function unregisterListeners() {
    var hls = this.hls;
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MEDIA_ATTACHED, this.onMediaAttached, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MEDIA_DETACHING, this.onMediaDetaching, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MANIFEST_LOADING, this.onManifestLoading, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].MANIFEST_PARSED, this.onManifestParsed, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].LEVEL_LOADING, this.onLevelLoading, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].LEVEL_SWITCHING, this.onLevelSwitching, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].SUBTITLE_TRACK_LOADED, this.onSubtitleTrackLoaded, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].ERROR, this.onError, this);
  } // Listen for subtitle track change, then extract the current track ID.
  ;

  _proto.onMediaAttached = function onMediaAttached(event, data) {
    this.media = data.media;

    if (!this.media) {
      return;
    }

    if (this.queuedDefaultTrack > -1) {
      this.subtitleTrack = this.queuedDefaultTrack;
      this.queuedDefaultTrack = -1;
    }

    this.useTextTrackPolling = !(this.media.textTracks && 'onchange' in this.media.textTracks);

    if (this.useTextTrackPolling) {
      this.pollTrackChange(500);
    } else {
      this.media.textTracks.addEventListener('change', this.asyncPollTrackChange);
    }
  };

  _proto.pollTrackChange = function pollTrackChange(timeout) {
    self.clearInterval(this.subtitlePollingInterval);
    this.subtitlePollingInterval = self.setInterval(this.trackChangeListener, timeout);
  };

  _proto.onMediaDetaching = function onMediaDetaching() {
    if (!this.media) {
      return;
    }

    self.clearInterval(this.subtitlePollingInterval);

    if (!this.useTextTrackPolling) {
      this.media.textTracks.removeEventListener('change', this.asyncPollTrackChange);
    }

    if (this.trackId > -1) {
      this.queuedDefaultTrack = this.trackId;
    }

    var textTracks = filterSubtitleTracks(this.media.textTracks); // Clear loaded cues on media detachment from tracks

    textTracks.forEach(function (track) {
      Object(_utils_texttrack_utils__WEBPACK_IMPORTED_MODULE_1__["clearCurrentCues"])(track);
    }); // Disable all subtitle tracks before detachment so when reattached only tracks in that content are enabled.

    this.subtitleTrack = -1;
    this.media = null;
  };

  _proto.onManifestLoading = function onManifestLoading() {
    this.tracks = [];
    this.groupId = null;
    this.tracksInGroup = [];
    this.trackId = -1;
    this.selectDefaultTrack = true;
  } // Fired whenever a new manifest is loaded.
  ;

  _proto.onManifestParsed = function onManifestParsed(event, data) {
    this.tracks = data.subtitleTracks;
  };

  _proto.onSubtitleTrackLoaded = function onSubtitleTrackLoaded(event, data) {
    var id = data.id,
        details = data.details;
    var trackId = this.trackId;
    var currentTrack = this.tracksInGroup[trackId];

    if (!currentTrack) {
      this.warn("Invalid subtitle track id " + id);
      return;
    }

    var curDetails = currentTrack.details;
    currentTrack.details = data.details;
    this.log("subtitle track " + id + " loaded [" + details.startSN + "-" + details.endSN + "]");

    if (id === this.trackId) {
      this.retryCount = 0;
      this.playlistLoaded(id, data, curDetails);
    }
  };

  _proto.onLevelLoading = function onLevelLoading(event, data) {
    this.switchLevel(data.level);
  };

  _proto.onLevelSwitching = function onLevelSwitching(event, data) {
    this.switchLevel(data.level);
  };

  _proto.switchLevel = function switchLevel(levelIndex) {
    var levelInfo = this.hls.levels[levelIndex];

    if (!(levelInfo !== null && levelInfo !== void 0 && levelInfo.textGroupIds)) {
      return;
    }

    var textGroupId = levelInfo.textGroupIds[levelInfo.urlId];

    if (this.groupId !== textGroupId) {
      var lastTrack = this.tracksInGroup ? this.tracksInGroup[this.trackId] : undefined;
      var subtitleTracks = this.tracks.filter(function (track) {
        return !textGroupId || track.groupId === textGroupId;
      });
      this.tracksInGroup = subtitleTracks;
      var initialTrackId = this.findTrackId(lastTrack === null || lastTrack === void 0 ? void 0 : lastTrack.name) || this.findTrackId();
      this.groupId = textGroupId;
      var subtitleTracksUpdated = {
        subtitleTracks: subtitleTracks
      };
      this.log("Updating subtitle tracks, " + subtitleTracks.length + " track(s) found in \"" + textGroupId + "\" group-id");
      this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].SUBTITLE_TRACKS_UPDATED, subtitleTracksUpdated);

      if (initialTrackId !== -1) {
        this.setSubtitleTrack(initialTrackId, lastTrack);
      }
    }
  };

  _proto.findTrackId = function findTrackId(name) {
    var textTracks = this.tracksInGroup;

    for (var i = 0; i < textTracks.length; i++) {
      var track = textTracks[i];

      if (!this.selectDefaultTrack || track.default) {
        if (!name || name === track.name) {
          return track.id;
        }
      }
    }

    return -1;
  };

  _proto.onError = function onError(event, data) {
    _BasePlaylistControll.prototype.onError.call(this, event, data);

    if (data.fatal || !data.context) {
      return;
    }

    if (data.context.type === _types_loader__WEBPACK_IMPORTED_MODULE_3__["PlaylistContextType"].SUBTITLE_TRACK && data.context.id === this.trackId && data.context.groupId === this.groupId) {
      this.retryLoadingOrFail(data);
    }
  }
  /** get alternate subtitle tracks list from playlist **/
  ;

  _proto.loadPlaylist = function loadPlaylist(hlsUrlParameters) {
    var currentTrack = this.tracksInGroup[this.trackId];

    if (this.shouldLoadTrack(currentTrack)) {
      var id = currentTrack.id;
      var groupId = currentTrack.groupId;
      var url = currentTrack.url;

      if (hlsUrlParameters) {
        try {
          url = hlsUrlParameters.addDirectives(url);
        } catch (error) {
          this.warn("Could not construct new URL with HLS Delivery Directives: " + error);
        }
      }

      this.log("Loading subtitle playlist for id " + id);
      this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].SUBTITLE_TRACK_LOADING, {
        url: url,
        id: id,
        groupId: groupId,
        deliveryDirectives: hlsUrlParameters || null
      });
    }
  }
  /**
   * Disables the old subtitleTrack and sets current mode on the next subtitleTrack.
   * This operates on the DOM textTracks.
   * A value of -1 will disable all subtitle tracks.
   */
  ;

  _proto.toggleTrackModes = function toggleTrackModes(newId) {
    var _this2 = this;

    var media = this.media,
        subtitleDisplay = this.subtitleDisplay,
        trackId = this.trackId;

    if (!media) {
      return;
    }

    var textTracks = filterSubtitleTracks(media.textTracks);
    var groupTracks = textTracks.filter(function (track) {
      return track.groupId === _this2.groupId;
    });

    if (newId === -1) {
      [].slice.call(textTracks).forEach(function (track) {
        track.mode = 'disabled';
      });
    } else {
      var oldTrack = groupTracks[trackId];

      if (oldTrack) {
        oldTrack.mode = 'disabled';
      }
    }

    var nextTrack = groupTracks[newId];

    if (nextTrack) {
      nextTrack.mode = subtitleDisplay ? 'showing' : 'hidden';
    }
  }
  /**
   * This method is responsible for validating the subtitle index and periodically reloading if live.
   * Dispatches the SUBTITLE_TRACK_SWITCH event, which instructs the subtitle-stream-controller to load the selected track.
   */
  ;

  _proto.setSubtitleTrack = function setSubtitleTrack(newId, lastTrack) {
    var _tracks$newId;

    var tracks = this.tracksInGroup; // setting this.subtitleTrack will trigger internal logic
    // if media has not been attached yet, it will fail
    // we keep a reference to the default track id
    // and we'll set subtitleTrack when onMediaAttached is triggered

    if (!this.media) {
      this.queuedDefaultTrack = newId;
      return;
    }

    if (this.trackId !== newId) {
      this.toggleTrackModes(newId);
    } // exit if track id as already set or invalid


    if (this.trackId === newId && (newId === -1 || (_tracks$newId = tracks[newId]) !== null && _tracks$newId !== void 0 && _tracks$newId.details) || newId < -1 || newId >= tracks.length) {
      return;
    } // stopping live reloading timer if any


    this.clearTimer();
    var track = tracks[newId];
    this.log("Switching to subtitle track " + newId);
    this.trackId = newId;

    if (track) {
      var id = track.id,
          _track$groupId = track.groupId,
          groupId = _track$groupId === void 0 ? '' : _track$groupId,
          name = track.name,
          type = track.type,
          url = track.url;
      this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].SUBTITLE_TRACK_SWITCH, {
        id: id,
        groupId: groupId,
        name: name,
        type: type,
        url: url
      });
      var hlsUrlParameters = this.switchParams(track.url, lastTrack === null || lastTrack === void 0 ? void 0 : lastTrack.details);
      this.loadPlaylist(hlsUrlParameters);
    } else {
      // switch to -1
      this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].SUBTITLE_TRACK_SWITCH, {
        id: newId
      });
    }
  };

  _proto.onTextTracksChanged = function onTextTracksChanged() {
    if (!this.useTextTrackPolling) {
      self.clearInterval(this.subtitlePollingInterval);
    } // Media is undefined when switching streams via loadSource()


    if (!this.media || !this.hls.config.renderTextTracksNatively) {
      return;
    }

    var trackId = -1;
    var tracks = filterSubtitleTracks(this.media.textTracks);

    for (var id = 0; id < tracks.length; id++) {
      if (tracks[id].mode === 'hidden') {
        // Do not break in case there is a following track with showing.
        trackId = id;
      } else if (tracks[id].mode === 'showing') {
        trackId = id;
        break;
      }
    } // Setting current subtitleTrack will invoke code.


    if (this.subtitleTrack !== trackId) {
      this.subtitleTrack = trackId;
    }
  };

  _createClass(SubtitleTrackController, [{
    key: "subtitleTracks",
    get: function get() {
      return this.tracksInGroup;
    }
    /** get/set index of the selected subtitle track (based on index in subtitle track lists) **/

  }, {
    key: "subtitleTrack",
    get: function get() {
      return this.trackId;
    },
    set: function set(newId) {
      this.selectDefaultTrack = false;
      var lastTrack = this.tracksInGroup ? this.tracksInGroup[this.trackId] : undefined;
      this.setSubtitleTrack(newId, lastTrack);
    }
  }]);

  return SubtitleTrackController;
}(_base_playlist_controller__WEBPACK_IMPORTED_MODULE_2__["default"]);

function filterSubtitleTracks(textTrackList) {
  var tracks = [];

  for (var i = 0; i < textTrackList.length; i++) {
    var track = textTrackList[i]; // Edge adds a track without a label; we don't want to use it

    if (track.kind === 'subtitles' && track.label) {
      tracks.push(textTrackList[i]);
    }
  }

  return tracks;
}

/* harmony default export */ __webpack_exports__["default"] = (SubtitleTrackController);

/***/ }),

/***/ "./src/controller/timeline-controller.ts":
/*!***********************************************!*\
  !*** ./src/controller/timeline-controller.ts ***!
  \***********************************************/
/*! exports provided: TimelineController */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "TimelineController", function() { return TimelineController; });
/* harmony import */ var _home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./src/polyfills/number */ "./src/polyfills/number.ts");
/* harmony import */ var _events__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../events */ "./src/events.ts");
/* harmony import */ var _utils_cea_608_parser__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../utils/cea-608-parser */ "./src/utils/cea-608-parser.ts");
/* harmony import */ var _utils_output_filter__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../utils/output-filter */ "./src/utils/output-filter.ts");
/* harmony import */ var _utils_webvtt_parser__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../utils/webvtt-parser */ "./src/utils/webvtt-parser.ts");
/* harmony import */ var _utils_texttrack_utils__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ../utils/texttrack-utils */ "./src/utils/texttrack-utils.ts");
/* harmony import */ var _utils_imsc1_ttml_parser__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ../utils/imsc1-ttml-parser */ "./src/utils/imsc1-ttml-parser.ts");
/* harmony import */ var _types_loader__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ../types/loader */ "./src/types/loader.ts");
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! ../utils/logger */ "./src/utils/logger.ts");










var TimelineController = /*#__PURE__*/function () {
  function TimelineController(hls) {
    this.hls = void 0;
    this.media = null;
    this.config = void 0;
    this.enabled = true;
    this.Cues = void 0;
    this.textTracks = [];
    this.tracks = [];
    this.initPTS = [];
    this.timescale = [];
    this.unparsedVttFrags = [];
    this.captionsTracks = {};
    this.nonNativeCaptionsTracks = {};
    this.cea608Parser1 = void 0;
    this.cea608Parser2 = void 0;
    this.lastSn = -1;
    this.lastPartIndex = -1;
    this.prevCC = -1;
    this.vttCCs = newVTTCCs();
    this.captionsProperties = void 0;
    this.hls = hls;
    this.config = hls.config;
    this.Cues = hls.config.cueHandler;
    this.captionsProperties = {
      textTrack1: {
        label: this.config.captionsTextTrack1Label,
        languageCode: this.config.captionsTextTrack1LanguageCode
      },
      textTrack2: {
        label: this.config.captionsTextTrack2Label,
        languageCode: this.config.captionsTextTrack2LanguageCode
      },
      textTrack3: {
        label: this.config.captionsTextTrack3Label,
        languageCode: this.config.captionsTextTrack3LanguageCode
      },
      textTrack4: {
        label: this.config.captionsTextTrack4Label,
        languageCode: this.config.captionsTextTrack4LanguageCode
      }
    };

    if (this.config.enableCEA708Captions) {
      var channel1 = new _utils_output_filter__WEBPACK_IMPORTED_MODULE_3__["default"](this, 'textTrack1');
      var channel2 = new _utils_output_filter__WEBPACK_IMPORTED_MODULE_3__["default"](this, 'textTrack2');
      var channel3 = new _utils_output_filter__WEBPACK_IMPORTED_MODULE_3__["default"](this, 'textTrack3');
      var channel4 = new _utils_output_filter__WEBPACK_IMPORTED_MODULE_3__["default"](this, 'textTrack4');
      this.cea608Parser1 = new _utils_cea_608_parser__WEBPACK_IMPORTED_MODULE_2__["default"](1, channel1, channel2);
      this.cea608Parser2 = new _utils_cea_608_parser__WEBPACK_IMPORTED_MODULE_2__["default"](3, channel3, channel4);
    }

    hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].MEDIA_ATTACHING, this.onMediaAttaching, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].MEDIA_DETACHING, this.onMediaDetaching, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].MANIFEST_LOADING, this.onManifestLoading, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].MANIFEST_LOADED, this.onManifestLoaded, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].SUBTITLE_TRACKS_UPDATED, this.onSubtitleTracksUpdated, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].FRAG_LOADING, this.onFragLoading, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].FRAG_LOADED, this.onFragLoaded, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].FRAG_PARSING_USERDATA, this.onFragParsingUserdata, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].FRAG_DECRYPTED, this.onFragDecrypted, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].INIT_PTS_FOUND, this.onInitPtsFound, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].SUBTITLE_TRACKS_CLEARED, this.onSubtitleTracksCleared, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].BUFFER_FLUSHING, this.onBufferFlushing, this);
  }

  var _proto = TimelineController.prototype;

  _proto.destroy = function destroy() {
    var hls = this.hls;
    hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].MEDIA_ATTACHING, this.onMediaAttaching, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].MEDIA_DETACHING, this.onMediaDetaching, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].MANIFEST_LOADING, this.onManifestLoading, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].MANIFEST_LOADED, this.onManifestLoaded, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].SUBTITLE_TRACKS_UPDATED, this.onSubtitleTracksUpdated, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].FRAG_LOADING, this.onFragLoading, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].FRAG_LOADED, this.onFragLoaded, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].FRAG_PARSING_USERDATA, this.onFragParsingUserdata, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].FRAG_DECRYPTED, this.onFragDecrypted, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].INIT_PTS_FOUND, this.onInitPtsFound, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].SUBTITLE_TRACKS_CLEARED, this.onSubtitleTracksCleared, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].BUFFER_FLUSHING, this.onBufferFlushing, this); // @ts-ignore

    this.hls = this.config = this.cea608Parser1 = this.cea608Parser2 = null;
  };

  _proto.addCues = function addCues(trackName, startTime, endTime, screen, cueRanges) {
    // skip cues which overlap more than 50% with previously parsed time ranges
    var merged = false;

    for (var i = cueRanges.length; i--;) {
      var cueRange = cueRanges[i];
      var overlap = intersection(cueRange[0], cueRange[1], startTime, endTime);

      if (overlap >= 0) {
        cueRange[0] = Math.min(cueRange[0], startTime);
        cueRange[1] = Math.max(cueRange[1], endTime);
        merged = true;

        if (overlap / (endTime - startTime) > 0.5) {
          return;
        }
      }
    }

    if (!merged) {
      cueRanges.push([startTime, endTime]);
    }

    if (this.config.renderTextTracksNatively) {
      var track = this.captionsTracks[trackName];
      this.Cues.newCue(track, startTime, endTime, screen);
    } else {
      var cues = this.Cues.newCue(null, startTime, endTime, screen);
      this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].CUES_PARSED, {
        type: 'captions',
        cues: cues,
        track: trackName
      });
    }
  } // Triggered when an initial PTS is found; used for synchronisation of WebVTT.
  ;

  _proto.onInitPtsFound = function onInitPtsFound(event, _ref) {
    var _this = this;

    var frag = _ref.frag,
        id = _ref.id,
        initPTS = _ref.initPTS,
        timescale = _ref.timescale;
    var unparsedVttFrags = this.unparsedVttFrags;

    if (id === 'main') {
      this.initPTS[frag.cc] = initPTS;
      this.timescale[frag.cc] = timescale;
    } // Due to asynchronous processing, initial PTS may arrive later than the first VTT fragments are loaded.
    // Parse any unparsed fragments upon receiving the initial PTS.


    if (unparsedVttFrags.length) {
      this.unparsedVttFrags = [];
      unparsedVttFrags.forEach(function (frag) {
        _this.onFragLoaded(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].FRAG_LOADED, frag);
      });
    }
  };

  _proto.getExistingTrack = function getExistingTrack(trackName) {
    var media = this.media;

    if (media) {
      for (var i = 0; i < media.textTracks.length; i++) {
        var textTrack = media.textTracks[i];

        if (textTrack[trackName]) {
          return textTrack;
        }
      }
    }

    return null;
  };

  _proto.createCaptionsTrack = function createCaptionsTrack(trackName) {
    if (this.config.renderTextTracksNatively) {
      this.createNativeTrack(trackName);
    } else {
      this.createNonNativeTrack(trackName);
    }
  };

  _proto.createNativeTrack = function createNativeTrack(trackName) {
    if (this.captionsTracks[trackName]) {
      return;
    }

    var captionsProperties = this.captionsProperties,
        captionsTracks = this.captionsTracks,
        media = this.media;
    var _captionsProperties$t = captionsProperties[trackName],
        label = _captionsProperties$t.label,
        languageCode = _captionsProperties$t.languageCode; // Enable reuse of existing text track.

    var existingTrack = this.getExistingTrack(trackName);

    if (!existingTrack) {
      var textTrack = this.createTextTrack('captions', label, languageCode);

      if (textTrack) {
        // Set a special property on the track so we know it's managed by Hls.js
        textTrack[trackName] = true;
        captionsTracks[trackName] = textTrack;
      }
    } else {
      captionsTracks[trackName] = existingTrack;
      Object(_utils_texttrack_utils__WEBPACK_IMPORTED_MODULE_5__["clearCurrentCues"])(captionsTracks[trackName]);
      Object(_utils_texttrack_utils__WEBPACK_IMPORTED_MODULE_5__["sendAddTrackEvent"])(captionsTracks[trackName], media);
    }
  };

  _proto.createNonNativeTrack = function createNonNativeTrack(trackName) {
    if (this.nonNativeCaptionsTracks[trackName]) {
      return;
    } // Create a list of a single track for the provider to consume


    var trackProperties = this.captionsProperties[trackName];

    if (!trackProperties) {
      return;
    }

    var label = trackProperties.label;
    var track = {
      _id: trackName,
      label: label,
      kind: 'captions',
      default: trackProperties.media ? !!trackProperties.media.default : false,
      closedCaptions: trackProperties.media
    };
    this.nonNativeCaptionsTracks[trackName] = track;
    this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].NON_NATIVE_TEXT_TRACKS_FOUND, {
      tracks: [track]
    });
  };

  _proto.createTextTrack = function createTextTrack(kind, label, lang) {
    var media = this.media;

    if (!media) {
      return;
    }

    return media.addTextTrack(kind, label, lang);
  };

  _proto.onMediaAttaching = function onMediaAttaching(event, data) {
    this.media = data.media;

    this._cleanTracks();
  };

  _proto.onMediaDetaching = function onMediaDetaching() {
    var captionsTracks = this.captionsTracks;
    Object.keys(captionsTracks).forEach(function (trackName) {
      Object(_utils_texttrack_utils__WEBPACK_IMPORTED_MODULE_5__["clearCurrentCues"])(captionsTracks[trackName]);
      delete captionsTracks[trackName];
    });
    this.nonNativeCaptionsTracks = {};
  };

  _proto.onManifestLoading = function onManifestLoading() {
    this.lastSn = -1; // Detect discontinuity in fragment parsing

    this.lastPartIndex = -1;
    this.prevCC = -1;
    this.vttCCs = newVTTCCs(); // Detect discontinuity in subtitle manifests

    this._cleanTracks();

    this.tracks = [];
    this.captionsTracks = {};
    this.nonNativeCaptionsTracks = {};
    this.textTracks = [];
    this.unparsedVttFrags = this.unparsedVttFrags || [];
    this.initPTS = [];
    this.timescale = [];

    if (this.cea608Parser1 && this.cea608Parser2) {
      this.cea608Parser1.reset();
      this.cea608Parser2.reset();
    }
  };

  _proto._cleanTracks = function _cleanTracks() {
    // clear outdated subtitles
    var media = this.media;

    if (!media) {
      return;
    }

    var textTracks = media.textTracks;

    if (textTracks) {
      for (var i = 0; i < textTracks.length; i++) {
        Object(_utils_texttrack_utils__WEBPACK_IMPORTED_MODULE_5__["clearCurrentCues"])(textTracks[i]);
      }
    }
  };

  _proto.onSubtitleTracksUpdated = function onSubtitleTracksUpdated(event, data) {
    var _this2 = this;

    this.textTracks = [];
    var tracks = data.subtitleTracks || [];
    var hasIMSC1 = tracks.some(function (track) {
      return track.textCodec === _utils_imsc1_ttml_parser__WEBPACK_IMPORTED_MODULE_6__["IMSC1_CODEC"];
    });

    if (this.config.enableWebVTT || hasIMSC1 && this.config.enableIMSC1) {
      var sameTracks = this.tracks && tracks && this.tracks.length === tracks.length;
      this.tracks = tracks || [];

      if (this.config.renderTextTracksNatively) {
        var inUseTracks = this.media ? this.media.textTracks : [];
        this.tracks.forEach(function (track, index) {
          var textTrack;

          if (index < inUseTracks.length) {
            var inUseTrack = null;

            for (var i = 0; i < inUseTracks.length; i++) {
              if (canReuseVttTextTrack(inUseTracks[i], track)) {
                inUseTrack = inUseTracks[i];
                break;
              }
            } // Reuse tracks with the same label, but do not reuse 608/708 tracks


            if (inUseTrack) {
              textTrack = inUseTrack;
            }
          }

          if (textTrack) {
            Object(_utils_texttrack_utils__WEBPACK_IMPORTED_MODULE_5__["clearCurrentCues"])(textTrack);
          } else {
            textTrack = _this2.createTextTrack('subtitles', track.name, track.lang);

            if (textTrack) {
              textTrack.mode = 'disabled';
            }
          }

          if (textTrack) {
            textTrack.groupId = track.groupId;

            _this2.textTracks.push(textTrack);
          }
        });
      } else if (!sameTracks && this.tracks && this.tracks.length) {
        // Create a list of tracks for the provider to consume
        var tracksList = this.tracks.map(function (track) {
          return {
            label: track.name,
            kind: track.type.toLowerCase(),
            default: track.default,
            subtitleTrack: track
          };
        });
        this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].NON_NATIVE_TEXT_TRACKS_FOUND, {
          tracks: tracksList
        });
      }
    }
  };

  _proto.onManifestLoaded = function onManifestLoaded(event, data) {
    var _this3 = this;

    if (this.config.enableCEA708Captions && data.captions) {
      data.captions.forEach(function (captionsTrack) {
        var instreamIdMatch = /(?:CC|SERVICE)([1-4])/.exec(captionsTrack.instreamId);

        if (!instreamIdMatch) {
          return;
        }

        var trackName = "textTrack" + instreamIdMatch[1];
        var trackProperties = _this3.captionsProperties[trackName];

        if (!trackProperties) {
          return;
        }

        trackProperties.label = captionsTrack.name;

        if (captionsTrack.lang) {
          // optional attribute
          trackProperties.languageCode = captionsTrack.lang;
        }

        trackProperties.media = captionsTrack;
      });
    }
  };

  _proto.onFragLoading = function onFragLoading(event, data) {
    var cea608Parser1 = this.cea608Parser1,
        cea608Parser2 = this.cea608Parser2,
        lastSn = this.lastSn,
        lastPartIndex = this.lastPartIndex;

    if (!this.enabled || !(cea608Parser1 && cea608Parser2)) {
      return;
    } // if this frag isn't contiguous, clear the parser so cues with bad start/end times aren't added to the textTrack


    if (data.frag.type === _types_loader__WEBPACK_IMPORTED_MODULE_7__["PlaylistLevelType"].MAIN) {
      var _data$part$index, _data$part;

      var sn = data.frag.sn;
      var partIndex = (_data$part$index = data === null || data === void 0 ? void 0 : (_data$part = data.part) === null || _data$part === void 0 ? void 0 : _data$part.index) != null ? _data$part$index : -1;

      if (!(sn === lastSn + 1 || sn === lastSn && partIndex === lastPartIndex + 1)) {
        cea608Parser1.reset();
        cea608Parser2.reset();
      }

      this.lastSn = sn;
      this.lastPartIndex = partIndex;
    }
  };

  _proto.onFragLoaded = function onFragLoaded(event, data) {
    var frag = data.frag,
        payload = data.payload;
    var initPTS = this.initPTS,
        unparsedVttFrags = this.unparsedVttFrags;

    if (frag.type === _types_loader__WEBPACK_IMPORTED_MODULE_7__["PlaylistLevelType"].SUBTITLE) {
      // If fragment is subtitle type, parse as WebVTT.
      if (payload.byteLength) {
        // We need an initial synchronisation PTS. Store fragments as long as none has arrived.
        if (!Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(initPTS[frag.cc])) {
          unparsedVttFrags.push(data);

          if (initPTS.length) {
            // finish unsuccessfully, otherwise the subtitle-stream-controller could be blocked from loading new frags.
            this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].SUBTITLE_FRAG_PROCESSED, {
              success: false,
              frag: frag,
              error: new Error('Missing initial subtitle PTS')
            });
          }

          return;
        }

        var decryptData = frag.decryptdata; // If the subtitles are not encrypted, parse VTTs now. Otherwise, we need to wait.

        if (decryptData == null || decryptData.key == null || decryptData.method !== 'AES-128') {
          var trackPlaylistMedia = this.tracks[frag.level];
          var vttCCs = this.vttCCs;

          if (!vttCCs[frag.cc]) {
            vttCCs[frag.cc] = {
              start: frag.start,
              prevCC: this.prevCC,
              new: true
            };
            this.prevCC = frag.cc;
          }

          if (trackPlaylistMedia && trackPlaylistMedia.textCodec === _utils_imsc1_ttml_parser__WEBPACK_IMPORTED_MODULE_6__["IMSC1_CODEC"]) {
            this._parseIMSC1(frag, payload);
          } else {
            this._parseVTTs(frag, payload, vttCCs);
          }
        }
      } else {
        // In case there is no payload, finish unsuccessfully.
        this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].SUBTITLE_FRAG_PROCESSED, {
          success: false,
          frag: frag,
          error: new Error('Empty subtitle payload')
        });
      }
    }
  };

  _proto._parseIMSC1 = function _parseIMSC1(frag, payload) {
    var _this4 = this;

    var hls = this.hls;
    Object(_utils_imsc1_ttml_parser__WEBPACK_IMPORTED_MODULE_6__["parseIMSC1"])(payload, this.initPTS[frag.cc], this.timescale[frag.cc], function (cues) {
      _this4._appendCues(cues, frag.level);

      hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].SUBTITLE_FRAG_PROCESSED, {
        success: true,
        frag: frag
      });
    }, function (error) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_8__["logger"].log("Failed to parse IMSC1: " + error);
      hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].SUBTITLE_FRAG_PROCESSED, {
        success: false,
        frag: frag,
        error: error
      });
    });
  };

  _proto._parseVTTs = function _parseVTTs(frag, payload, vttCCs) {
    var _this5 = this;

    var hls = this.hls; // Parse the WebVTT file contents.

    Object(_utils_webvtt_parser__WEBPACK_IMPORTED_MODULE_4__["parseWebVTT"])(payload, this.initPTS[frag.cc], this.timescale[frag.cc], vttCCs, frag.cc, frag.start, function (cues) {
      _this5._appendCues(cues, frag.level);

      hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].SUBTITLE_FRAG_PROCESSED, {
        success: true,
        frag: frag
      });
    }, function (error) {
      _this5._fallbackToIMSC1(frag, payload); // Something went wrong while parsing. Trigger event with success false.


      _utils_logger__WEBPACK_IMPORTED_MODULE_8__["logger"].log("Failed to parse VTT cue: " + error);
      hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].SUBTITLE_FRAG_PROCESSED, {
        success: false,
        frag: frag,
        error: error
      });
    });
  };

  _proto._fallbackToIMSC1 = function _fallbackToIMSC1(frag, payload) {
    var _this6 = this;

    // If textCodec is unknown, try parsing as IMSC1. Set textCodec based on the result
    var trackPlaylistMedia = this.tracks[frag.level];

    if (!trackPlaylistMedia.textCodec) {
      Object(_utils_imsc1_ttml_parser__WEBPACK_IMPORTED_MODULE_6__["parseIMSC1"])(payload, this.initPTS[frag.cc], this.timescale[frag.cc], function () {
        trackPlaylistMedia.textCodec = _utils_imsc1_ttml_parser__WEBPACK_IMPORTED_MODULE_6__["IMSC1_CODEC"];

        _this6._parseIMSC1(frag, payload);
      }, function () {
        trackPlaylistMedia.textCodec = 'wvtt';
      });
    }
  };

  _proto._appendCues = function _appendCues(cues, fragLevel) {
    var hls = this.hls;

    if (this.config.renderTextTracksNatively) {
      var textTrack = this.textTracks[fragLevel]; // WebVTTParser.parse is an async method and if the currently selected text track mode is set to "disabled"
      // before parsing is done then don't try to access currentTrack.cues.getCueById as cues will be null
      // and trying to access getCueById method of cues will throw an exception
      // Because we check if the mode is disabled, we can force check `cues` below. They can't be null.

      if (textTrack.mode === 'disabled') {
        return;
      }

      cues.forEach(function (cue) {
        return Object(_utils_texttrack_utils__WEBPACK_IMPORTED_MODULE_5__["addCueToTrack"])(textTrack, cue);
      });
    } else {
      var currentTrack = this.tracks[fragLevel];
      var track = currentTrack.default ? 'default' : 'subtitles' + fragLevel;
      hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].CUES_PARSED, {
        type: 'subtitles',
        cues: cues,
        track: track
      });
    }
  };

  _proto.onFragDecrypted = function onFragDecrypted(event, data) {
    var frag = data.frag;

    if (frag.type === _types_loader__WEBPACK_IMPORTED_MODULE_7__["PlaylistLevelType"].SUBTITLE) {
      if (!Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(this.initPTS[frag.cc])) {
        this.unparsedVttFrags.push(data);
        return;
      }

      this.onFragLoaded(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].FRAG_LOADED, data);
    }
  };

  _proto.onSubtitleTracksCleared = function onSubtitleTracksCleared() {
    this.tracks = [];
    this.captionsTracks = {};
  };

  _proto.onFragParsingUserdata = function onFragParsingUserdata(event, data) {
    var cea608Parser1 = this.cea608Parser1,
        cea608Parser2 = this.cea608Parser2;

    if (!this.enabled || !(cea608Parser1 && cea608Parser2)) {
      return;
    } // If the event contains captions (found in the bytes property), push all bytes into the parser immediately
    // It will create the proper timestamps based on the PTS value


    for (var i = 0; i < data.samples.length; i++) {
      var ccBytes = data.samples[i].bytes;

      if (ccBytes) {
        var ccdatas = this.extractCea608Data(ccBytes);
        cea608Parser1.addData(data.samples[i].pts, ccdatas[0]);
        cea608Parser2.addData(data.samples[i].pts, ccdatas[1]);
      }
    }
  };

  _proto.onBufferFlushing = function onBufferFlushing(event, _ref2) {
    var startOffset = _ref2.startOffset,
        endOffset = _ref2.endOffset,
        endOffsetSubtitles = _ref2.endOffsetSubtitles,
        type = _ref2.type;
    var media = this.media;

    if (!media || media.currentTime < endOffset) {
      return;
    } // Clear 608 caption cues from the captions TextTracks when the video back buffer is flushed
    // Forward cues are never removed because we can loose streamed 608 content from recent fragments


    if (!type || type === 'video') {
      var captionsTracks = this.captionsTracks;
      Object.keys(captionsTracks).forEach(function (trackName) {
        return Object(_utils_texttrack_utils__WEBPACK_IMPORTED_MODULE_5__["removeCuesInRange"])(captionsTracks[trackName], startOffset, endOffset);
      });
    }

    if (this.config.renderTextTracksNatively) {
      // Clear VTT/IMSC1 subtitle cues from the subtitle TextTracks when the back buffer is flushed
      if (startOffset === 0 && endOffsetSubtitles !== undefined) {
        var textTracks = this.textTracks;
        Object.keys(textTracks).forEach(function (trackName) {
          return Object(_utils_texttrack_utils__WEBPACK_IMPORTED_MODULE_5__["removeCuesInRange"])(textTracks[trackName], startOffset, endOffsetSubtitles);
        });
      }
    }
  };

  _proto.extractCea608Data = function extractCea608Data(byteArray) {
    var count = byteArray[0] & 31;
    var position = 2;
    var actualCCBytes = [[], []];

    for (var j = 0; j < count; j++) {
      var tmpByte = byteArray[position++];
      var ccbyte1 = 0x7f & byteArray[position++];
      var ccbyte2 = 0x7f & byteArray[position++];
      var ccValid = (4 & tmpByte) !== 0;
      var ccType = 3 & tmpByte;

      if (ccbyte1 === 0 && ccbyte2 === 0) {
        continue;
      }

      if (ccValid) {
        if (ccType === 0 || ccType === 1) {
          actualCCBytes[ccType].push(ccbyte1);
          actualCCBytes[ccType].push(ccbyte2);
        }
      }
    }

    return actualCCBytes;
  };

  return TimelineController;
}();

function canReuseVttTextTrack(inUseTrack, manifestTrack) {
  return inUseTrack && inUseTrack.label === manifestTrack.name && !(inUseTrack.textTrack1 || inUseTrack.textTrack2);
}

function intersection(x1, x2, y1, y2) {
  return Math.min(x2, y2) - Math.max(x1, y1);
}

function newVTTCCs() {
  return {
    ccOffset: 0,
    presentationOffset: 0,
    0: {
      start: 0,
      prevCC: -1,
      new: false
    }
  };
}

/***/ }),

/***/ "./src/crypt/aes-crypto.ts":
/*!*********************************!*\
  !*** ./src/crypt/aes-crypto.ts ***!
  \*********************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "default", function() { return AESCrypto; });
var AESCrypto = /*#__PURE__*/function () {
  function AESCrypto(subtle, iv) {
    this.subtle = void 0;
    this.aesIV = void 0;
    this.subtle = subtle;
    this.aesIV = iv;
  }

  var _proto = AESCrypto.prototype;

  _proto.decrypt = function decrypt(data, key) {
    return this.subtle.decrypt({
      name: 'AES-CBC',
      iv: this.aesIV
    }, key, data);
  };

  return AESCrypto;
}();



/***/ }),

/***/ "./src/crypt/aes-decryptor.ts":
/*!************************************!*\
  !*** ./src/crypt/aes-decryptor.ts ***!
  \************************************/
/*! exports provided: removePadding, default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "removePadding", function() { return removePadding; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "default", function() { return AESDecryptor; });
/* harmony import */ var _utils_typed_array__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../utils/typed-array */ "./src/utils/typed-array.ts");
 // PKCS7

function removePadding(array) {
  var outputBytes = array.byteLength;
  var paddingBytes = outputBytes && new DataView(array.buffer).getUint8(outputBytes - 1);

  if (paddingBytes) {
    return Object(_utils_typed_array__WEBPACK_IMPORTED_MODULE_0__["sliceUint8"])(array, 0, outputBytes - paddingBytes);
  }

  return array;
}

var AESDecryptor = /*#__PURE__*/function () {
  function AESDecryptor() {
    this.rcon = [0x0, 0x1, 0x2, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36];
    this.subMix = [new Uint32Array(256), new Uint32Array(256), new Uint32Array(256), new Uint32Array(256)];
    this.invSubMix = [new Uint32Array(256), new Uint32Array(256), new Uint32Array(256), new Uint32Array(256)];
    this.sBox = new Uint32Array(256);
    this.invSBox = new Uint32Array(256);
    this.key = new Uint32Array(0);
    this.ksRows = 0;
    this.keySize = 0;
    this.keySchedule = void 0;
    this.invKeySchedule = void 0;
    this.initTable();
  } // Using view.getUint32() also swaps the byte order.


  var _proto = AESDecryptor.prototype;

  _proto.uint8ArrayToUint32Array_ = function uint8ArrayToUint32Array_(arrayBuffer) {
    var view = new DataView(arrayBuffer);
    var newArray = new Uint32Array(4);

    for (var i = 0; i < 4; i++) {
      newArray[i] = view.getUint32(i * 4);
    }

    return newArray;
  };

  _proto.initTable = function initTable() {
    var sBox = this.sBox;
    var invSBox = this.invSBox;
    var subMix = this.subMix;
    var subMix0 = subMix[0];
    var subMix1 = subMix[1];
    var subMix2 = subMix[2];
    var subMix3 = subMix[3];
    var invSubMix = this.invSubMix;
    var invSubMix0 = invSubMix[0];
    var invSubMix1 = invSubMix[1];
    var invSubMix2 = invSubMix[2];
    var invSubMix3 = invSubMix[3];
    var d = new Uint32Array(256);
    var x = 0;
    var xi = 0;
    var i = 0;

    for (i = 0; i < 256; i++) {
      if (i < 128) {
        d[i] = i << 1;
      } else {
        d[i] = i << 1 ^ 0x11b;
      }
    }

    for (i = 0; i < 256; i++) {
      var sx = xi ^ xi << 1 ^ xi << 2 ^ xi << 3 ^ xi << 4;
      sx = sx >>> 8 ^ sx & 0xff ^ 0x63;
      sBox[x] = sx;
      invSBox[sx] = x; // Compute multiplication

      var x2 = d[x];
      var x4 = d[x2];
      var x8 = d[x4]; // Compute sub/invSub bytes, mix columns tables

      var t = d[sx] * 0x101 ^ sx * 0x1010100;
      subMix0[x] = t << 24 | t >>> 8;
      subMix1[x] = t << 16 | t >>> 16;
      subMix2[x] = t << 8 | t >>> 24;
      subMix3[x] = t; // Compute inv sub bytes, inv mix columns tables

      t = x8 * 0x1010101 ^ x4 * 0x10001 ^ x2 * 0x101 ^ x * 0x1010100;
      invSubMix0[sx] = t << 24 | t >>> 8;
      invSubMix1[sx] = t << 16 | t >>> 16;
      invSubMix2[sx] = t << 8 | t >>> 24;
      invSubMix3[sx] = t; // Compute next counter

      if (!x) {
        x = xi = 1;
      } else {
        x = x2 ^ d[d[d[x8 ^ x2]]];
        xi ^= d[d[xi]];
      }
    }
  };

  _proto.expandKey = function expandKey(keyBuffer) {
    // convert keyBuffer to Uint32Array
    var key = this.uint8ArrayToUint32Array_(keyBuffer);
    var sameKey = true;
    var offset = 0;

    while (offset < key.length && sameKey) {
      sameKey = key[offset] === this.key[offset];
      offset++;
    }

    if (sameKey) {
      return;
    }

    this.key = key;
    var keySize = this.keySize = key.length;

    if (keySize !== 4 && keySize !== 6 && keySize !== 8) {
      throw new Error('Invalid aes key size=' + keySize);
    }

    var ksRows = this.ksRows = (keySize + 6 + 1) * 4;
    var ksRow;
    var invKsRow;
    var keySchedule = this.keySchedule = new Uint32Array(ksRows);
    var invKeySchedule = this.invKeySchedule = new Uint32Array(ksRows);
    var sbox = this.sBox;
    var rcon = this.rcon;
    var invSubMix = this.invSubMix;
    var invSubMix0 = invSubMix[0];
    var invSubMix1 = invSubMix[1];
    var invSubMix2 = invSubMix[2];
    var invSubMix3 = invSubMix[3];
    var prev;
    var t;

    for (ksRow = 0; ksRow < ksRows; ksRow++) {
      if (ksRow < keySize) {
        prev = keySchedule[ksRow] = key[ksRow];
        continue;
      }

      t = prev;

      if (ksRow % keySize === 0) {
        // Rot word
        t = t << 8 | t >>> 24; // Sub word

        t = sbox[t >>> 24] << 24 | sbox[t >>> 16 & 0xff] << 16 | sbox[t >>> 8 & 0xff] << 8 | sbox[t & 0xff]; // Mix Rcon

        t ^= rcon[ksRow / keySize | 0] << 24;
      } else if (keySize > 6 && ksRow % keySize === 4) {
        // Sub word
        t = sbox[t >>> 24] << 24 | sbox[t >>> 16 & 0xff] << 16 | sbox[t >>> 8 & 0xff] << 8 | sbox[t & 0xff];
      }

      keySchedule[ksRow] = prev = (keySchedule[ksRow - keySize] ^ t) >>> 0;
    }

    for (invKsRow = 0; invKsRow < ksRows; invKsRow++) {
      ksRow = ksRows - invKsRow;

      if (invKsRow & 3) {
        t = keySchedule[ksRow];
      } else {
        t = keySchedule[ksRow - 4];
      }

      if (invKsRow < 4 || ksRow <= 4) {
        invKeySchedule[invKsRow] = t;
      } else {
        invKeySchedule[invKsRow] = invSubMix0[sbox[t >>> 24]] ^ invSubMix1[sbox[t >>> 16 & 0xff]] ^ invSubMix2[sbox[t >>> 8 & 0xff]] ^ invSubMix3[sbox[t & 0xff]];
      }

      invKeySchedule[invKsRow] = invKeySchedule[invKsRow] >>> 0;
    }
  } // Adding this as a method greatly improves performance.
  ;

  _proto.networkToHostOrderSwap = function networkToHostOrderSwap(word) {
    return word << 24 | (word & 0xff00) << 8 | (word & 0xff0000) >> 8 | word >>> 24;
  };

  _proto.decrypt = function decrypt(inputArrayBuffer, offset, aesIV) {
    var nRounds = this.keySize + 6;
    var invKeySchedule = this.invKeySchedule;
    var invSBOX = this.invSBox;
    var invSubMix = this.invSubMix;
    var invSubMix0 = invSubMix[0];
    var invSubMix1 = invSubMix[1];
    var invSubMix2 = invSubMix[2];
    var invSubMix3 = invSubMix[3];
    var initVector = this.uint8ArrayToUint32Array_(aesIV);
    var initVector0 = initVector[0];
    var initVector1 = initVector[1];
    var initVector2 = initVector[2];
    var initVector3 = initVector[3];
    var inputInt32 = new Int32Array(inputArrayBuffer);
    var outputInt32 = new Int32Array(inputInt32.length);
    var t0, t1, t2, t3;
    var s0, s1, s2, s3;
    var inputWords0, inputWords1, inputWords2, inputWords3;
    var ksRow, i;
    var swapWord = this.networkToHostOrderSwap;

    while (offset < inputInt32.length) {
      inputWords0 = swapWord(inputInt32[offset]);
      inputWords1 = swapWord(inputInt32[offset + 1]);
      inputWords2 = swapWord(inputInt32[offset + 2]);
      inputWords3 = swapWord(inputInt32[offset + 3]);
      s0 = inputWords0 ^ invKeySchedule[0];
      s1 = inputWords3 ^ invKeySchedule[1];
      s2 = inputWords2 ^ invKeySchedule[2];
      s3 = inputWords1 ^ invKeySchedule[3];
      ksRow = 4; // Iterate through the rounds of decryption

      for (i = 1; i < nRounds; i++) {
        t0 = invSubMix0[s0 >>> 24] ^ invSubMix1[s1 >> 16 & 0xff] ^ invSubMix2[s2 >> 8 & 0xff] ^ invSubMix3[s3 & 0xff] ^ invKeySchedule[ksRow];
        t1 = invSubMix0[s1 >>> 24] ^ invSubMix1[s2 >> 16 & 0xff] ^ invSubMix2[s3 >> 8 & 0xff] ^ invSubMix3[s0 & 0xff] ^ invKeySchedule[ksRow + 1];
        t2 = invSubMix0[s2 >>> 24] ^ invSubMix1[s3 >> 16 & 0xff] ^ invSubMix2[s0 >> 8 & 0xff] ^ invSubMix3[s1 & 0xff] ^ invKeySchedule[ksRow + 2];
        t3 = invSubMix0[s3 >>> 24] ^ invSubMix1[s0 >> 16 & 0xff] ^ invSubMix2[s1 >> 8 & 0xff] ^ invSubMix3[s2 & 0xff] ^ invKeySchedule[ksRow + 3]; // Update state

        s0 = t0;
        s1 = t1;
        s2 = t2;
        s3 = t3;
        ksRow = ksRow + 4;
      } // Shift rows, sub bytes, add round key


      t0 = invSBOX[s0 >>> 24] << 24 ^ invSBOX[s1 >> 16 & 0xff] << 16 ^ invSBOX[s2 >> 8 & 0xff] << 8 ^ invSBOX[s3 & 0xff] ^ invKeySchedule[ksRow];
      t1 = invSBOX[s1 >>> 24] << 24 ^ invSBOX[s2 >> 16 & 0xff] << 16 ^ invSBOX[s3 >> 8 & 0xff] << 8 ^ invSBOX[s0 & 0xff] ^ invKeySchedule[ksRow + 1];
      t2 = invSBOX[s2 >>> 24] << 24 ^ invSBOX[s3 >> 16 & 0xff] << 16 ^ invSBOX[s0 >> 8 & 0xff] << 8 ^ invSBOX[s1 & 0xff] ^ invKeySchedule[ksRow + 2];
      t3 = invSBOX[s3 >>> 24] << 24 ^ invSBOX[s0 >> 16 & 0xff] << 16 ^ invSBOX[s1 >> 8 & 0xff] << 8 ^ invSBOX[s2 & 0xff] ^ invKeySchedule[ksRow + 3]; // Write

      outputInt32[offset] = swapWord(t0 ^ initVector0);
      outputInt32[offset + 1] = swapWord(t3 ^ initVector1);
      outputInt32[offset + 2] = swapWord(t2 ^ initVector2);
      outputInt32[offset + 3] = swapWord(t1 ^ initVector3); // reset initVector to last 4 unsigned int

      initVector0 = inputWords0;
      initVector1 = inputWords1;
      initVector2 = inputWords2;
      initVector3 = inputWords3;
      offset = offset + 4;
    }

    return outputInt32.buffer;
  };

  return AESDecryptor;
}();



/***/ }),

/***/ "./src/crypt/decrypter.ts":
/*!********************************!*\
  !*** ./src/crypt/decrypter.ts ***!
  \********************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "default", function() { return Decrypter; });
/* harmony import */ var _aes_crypto__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./aes-crypto */ "./src/crypt/aes-crypto.ts");
/* harmony import */ var _fast_aes_key__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./fast-aes-key */ "./src/crypt/fast-aes-key.ts");
/* harmony import */ var _aes_decryptor__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./aes-decryptor */ "./src/crypt/aes-decryptor.ts");
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../utils/logger */ "./src/utils/logger.ts");
/* harmony import */ var _utils_mp4_tools__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../utils/mp4-tools */ "./src/utils/mp4-tools.ts");
/* harmony import */ var _utils_typed_array__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ../utils/typed-array */ "./src/utils/typed-array.ts");






var CHUNK_SIZE = 16; // 16 bytes, 128 bits

var Decrypter = /*#__PURE__*/function () {
  function Decrypter(observer, config, _temp) {
    var _ref = _temp === void 0 ? {} : _temp,
        _ref$removePKCS7Paddi = _ref.removePKCS7Padding,
        removePKCS7Padding = _ref$removePKCS7Paddi === void 0 ? true : _ref$removePKCS7Paddi;

    this.logEnabled = true;
    this.observer = void 0;
    this.config = void 0;
    this.removePKCS7Padding = void 0;
    this.subtle = null;
    this.softwareDecrypter = null;
    this.key = null;
    this.fastAesKey = null;
    this.remainderData = null;
    this.currentIV = null;
    this.currentResult = null;
    this.observer = observer;
    this.config = config;
    this.removePKCS7Padding = removePKCS7Padding; // built in decryptor expects PKCS7 padding

    if (removePKCS7Padding) {
      try {
        var browserCrypto = self.crypto;

        if (browserCrypto) {
          this.subtle = browserCrypto.subtle || browserCrypto.webkitSubtle;
        }
      } catch (e) {
        /* no-op */
      }
    }

    if (this.subtle === null) {
      this.config.enableSoftwareAES = true;
    }
  }

  var _proto = Decrypter.prototype;

  _proto.destroy = function destroy() {
    // @ts-ignore
    this.observer = null;
  };

  _proto.isSync = function isSync() {
    return this.config.enableSoftwareAES;
  };

  _proto.flush = function flush() {
    var currentResult = this.currentResult;

    if (!currentResult) {
      this.reset();
      return;
    }

    var data = new Uint8Array(currentResult);
    this.reset();

    if (this.removePKCS7Padding) {
      return Object(_aes_decryptor__WEBPACK_IMPORTED_MODULE_2__["removePadding"])(data);
    }

    return data;
  };

  _proto.reset = function reset() {
    this.currentResult = null;
    this.currentIV = null;
    this.remainderData = null;

    if (this.softwareDecrypter) {
      this.softwareDecrypter = null;
    }
  };

  _proto.decrypt = function decrypt(data, key, iv, callback) {
    if (this.config.enableSoftwareAES) {
      this.softwareDecrypt(new Uint8Array(data), key, iv);
      var decryptResult = this.flush();

      if (decryptResult) {
        callback(decryptResult.buffer);
      }
    } else {
      this.webCryptoDecrypt(new Uint8Array(data), key, iv).then(callback);
    }
  };

  _proto.softwareDecrypt = function softwareDecrypt(data, key, iv) {
    var currentIV = this.currentIV,
        currentResult = this.currentResult,
        remainderData = this.remainderData;
    this.logOnce('JS AES decrypt'); // The output is staggered during progressive parsing - the current result is cached, and emitted on the next call
    // This is done in order to strip PKCS7 padding, which is found at the end of each segment. We only know we've reached
    // the end on flush(), but by that time we have already received all bytes for the segment.
    // Progressive decryption does not work with WebCrypto

    if (remainderData) {
      data = Object(_utils_mp4_tools__WEBPACK_IMPORTED_MODULE_4__["appendUint8Array"])(remainderData, data);
      this.remainderData = null;
    } // Byte length must be a multiple of 16 (AES-128 = 128 bit blocks = 16 bytes)


    var currentChunk = this.getValidChunk(data);

    if (!currentChunk.length) {
      return null;
    }

    if (currentIV) {
      iv = currentIV;
    }

    var softwareDecrypter = this.softwareDecrypter;

    if (!softwareDecrypter) {
      softwareDecrypter = this.softwareDecrypter = new _aes_decryptor__WEBPACK_IMPORTED_MODULE_2__["default"]();
    }

    softwareDecrypter.expandKey(key);
    var result = currentResult;
    this.currentResult = softwareDecrypter.decrypt(currentChunk.buffer, 0, iv);
    this.currentIV = Object(_utils_typed_array__WEBPACK_IMPORTED_MODULE_5__["sliceUint8"])(currentChunk, -16).buffer;

    if (!result) {
      return null;
    }

    return result;
  };

  _proto.webCryptoDecrypt = function webCryptoDecrypt(data, key, iv) {
    var _this = this;

    var subtle = this.subtle;

    if (this.key !== key || !this.fastAesKey) {
      this.key = key;
      this.fastAesKey = new _fast_aes_key__WEBPACK_IMPORTED_MODULE_1__["default"](subtle, key);
    }

    return this.fastAesKey.expandKey().then(function (aesKey) {
      // decrypt using web crypto
      if (!subtle) {
        return Promise.reject(new Error('web crypto not initialized'));
      }

      var crypto = new _aes_crypto__WEBPACK_IMPORTED_MODULE_0__["default"](subtle, iv);
      return crypto.decrypt(data.buffer, aesKey);
    }).catch(function (err) {
      return _this.onWebCryptoError(err, data, key, iv);
    });
  };

  _proto.onWebCryptoError = function onWebCryptoError(err, data, key, iv) {
    _utils_logger__WEBPACK_IMPORTED_MODULE_3__["logger"].warn('[decrypter.ts]: WebCrypto Error, disable WebCrypto API:', err);
    this.config.enableSoftwareAES = true;
    this.logEnabled = true;
    return this.softwareDecrypt(data, key, iv);
  };

  _proto.getValidChunk = function getValidChunk(data) {
    var currentChunk = data;
    var splitPoint = data.length - data.length % CHUNK_SIZE;

    if (splitPoint !== data.length) {
      currentChunk = Object(_utils_typed_array__WEBPACK_IMPORTED_MODULE_5__["sliceUint8"])(data, 0, splitPoint);
      this.remainderData = Object(_utils_typed_array__WEBPACK_IMPORTED_MODULE_5__["sliceUint8"])(data, splitPoint);
    }

    return currentChunk;
  };

  _proto.logOnce = function logOnce(msg) {
    if (!this.logEnabled) {
      return;
    }

    _utils_logger__WEBPACK_IMPORTED_MODULE_3__["logger"].log("[decrypter.ts]: " + msg);
    this.logEnabled = false;
  };

  return Decrypter;
}();



/***/ }),

/***/ "./src/crypt/fast-aes-key.ts":
/*!***********************************!*\
  !*** ./src/crypt/fast-aes-key.ts ***!
  \***********************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "default", function() { return FastAESKey; });
var FastAESKey = /*#__PURE__*/function () {
  function FastAESKey(subtle, key) {
    this.subtle = void 0;
    this.key = void 0;
    this.subtle = subtle;
    this.key = key;
  }

  var _proto = FastAESKey.prototype;

  _proto.expandKey = function expandKey() {
    return this.subtle.importKey('raw', this.key, {
      name: 'AES-CBC'
    }, false, ['encrypt', 'decrypt']);
  };

  return FastAESKey;
}();



/***/ }),

/***/ "./src/demux/aacdemuxer.ts":
/*!*********************************!*\
  !*** ./src/demux/aacdemuxer.ts ***!
  \*********************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony import */ var _base_audio_demuxer__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./base-audio-demuxer */ "./src/demux/base-audio-demuxer.ts");
/* harmony import */ var _adts__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./adts */ "./src/demux/adts.ts");
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../utils/logger */ "./src/utils/logger.ts");
/* harmony import */ var _demux_id3__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../demux/id3 */ "./src/demux/id3.ts");
function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

/**
 * AAC demuxer
 */





var AACDemuxer = /*#__PURE__*/function (_BaseAudioDemuxer) {
  _inheritsLoose(AACDemuxer, _BaseAudioDemuxer);

  function AACDemuxer(observer, config) {
    var _this;

    _this = _BaseAudioDemuxer.call(this) || this;
    _this.observer = void 0;
    _this.config = void 0;
    _this.observer = observer;
    _this.config = config;
    return _this;
  }

  var _proto = AACDemuxer.prototype;

  _proto.resetInitSegment = function resetInitSegment(audioCodec, videoCodec, duration) {
    _BaseAudioDemuxer.prototype.resetInitSegment.call(this, audioCodec, videoCodec, duration);

    this._audioTrack = {
      container: 'audio/adts',
      type: 'audio',
      id: 2,
      pid: -1,
      sequenceNumber: 0,
      isAAC: true,
      samples: [],
      manifestCodec: audioCodec,
      duration: duration,
      inputTimeScale: 90000,
      dropped: 0
    };
  } // Source for probe info - https://wiki.multimedia.cx/index.php?title=ADTS
  ;

  AACDemuxer.probe = function probe(data) {
    if (!data) {
      return false;
    } // Check for the ADTS sync word
    // Look for ADTS header | 1111 1111 | 1111 X00X | where X can be either 0 or 1
    // Layer bits (position 14 and 15) in header should be always 0 for ADTS
    // More info https://wiki.multimedia.cx/index.php?title=ADTS


    var id3Data = _demux_id3__WEBPACK_IMPORTED_MODULE_3__["getID3Data"](data, 0) || [];
    var offset = id3Data.length;

    for (var length = data.length; offset < length; offset++) {
      if (_adts__WEBPACK_IMPORTED_MODULE_1__["probe"](data, offset)) {
        _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].log('ADTS sync word found !');
        return true;
      }
    }

    return false;
  };

  _proto.canParse = function canParse(data, offset) {
    return _adts__WEBPACK_IMPORTED_MODULE_1__["canParse"](data, offset);
  };

  _proto.appendFrame = function appendFrame(track, data, offset) {
    _adts__WEBPACK_IMPORTED_MODULE_1__["initTrackConfig"](track, this.observer, data, offset, track.manifestCodec);
    var frame = _adts__WEBPACK_IMPORTED_MODULE_1__["appendFrame"](track, data, offset, this.initPTS, this.frameIndex);

    if (frame && frame.missing === 0) {
      return frame;
    }
  };

  return AACDemuxer;
}(_base_audio_demuxer__WEBPACK_IMPORTED_MODULE_0__["default"]);

AACDemuxer.minProbeByteLength = 9;
/* harmony default export */ __webpack_exports__["default"] = (AACDemuxer);

/***/ }),

/***/ "./src/demux/adts.ts":
/*!***************************!*\
  !*** ./src/demux/adts.ts ***!
  \***************************/
/*! exports provided: getAudioConfig, isHeaderPattern, getHeaderLength, getFullFrameLength, canGetFrameLength, isHeader, canParse, probe, initTrackConfig, getFrameDuration, parseFrameHeader, appendFrame */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getAudioConfig", function() { return getAudioConfig; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "isHeaderPattern", function() { return isHeaderPattern; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getHeaderLength", function() { return getHeaderLength; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getFullFrameLength", function() { return getFullFrameLength; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "canGetFrameLength", function() { return canGetFrameLength; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "isHeader", function() { return isHeader; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "canParse", function() { return canParse; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "probe", function() { return probe; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "initTrackConfig", function() { return initTrackConfig; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getFrameDuration", function() { return getFrameDuration; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "parseFrameHeader", function() { return parseFrameHeader; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "appendFrame", function() { return appendFrame; });
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../utils/logger */ "./src/utils/logger.ts");
/* harmony import */ var _errors__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../errors */ "./src/errors.ts");
/* harmony import */ var _events__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../events */ "./src/events.ts");
/**
 * ADTS parser helper
 * @link https://wiki.multimedia.cx/index.php?title=ADTS
 */



function getAudioConfig(observer, data, offset, audioCodec) {
  var adtsObjectType;
  var adtsExtensionSamplingIndex;
  var adtsChanelConfig;
  var config;
  var userAgent = navigator.userAgent.toLowerCase();
  var manifestCodec = audioCodec;
  var adtsSampleingRates = [96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 7350]; // byte 2

  adtsObjectType = ((data[offset + 2] & 0xc0) >>> 6) + 1;
  var adtsSamplingIndex = (data[offset + 2] & 0x3c) >>> 2;

  if (adtsSamplingIndex > adtsSampleingRates.length - 1) {
    observer.trigger(_events__WEBPACK_IMPORTED_MODULE_2__["Events"].ERROR, {
      type: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorTypes"].MEDIA_ERROR,
      details: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorDetails"].FRAG_PARSING_ERROR,
      fatal: true,
      reason: "invalid ADTS sampling index:" + adtsSamplingIndex
    });
    return;
  }

  adtsChanelConfig = (data[offset + 2] & 0x01) << 2; // byte 3

  adtsChanelConfig |= (data[offset + 3] & 0xc0) >>> 6;
  _utils_logger__WEBPACK_IMPORTED_MODULE_0__["logger"].log("manifest codec:" + audioCodec + ", ADTS type:" + adtsObjectType + ", samplingIndex:" + adtsSamplingIndex); // firefox: freq less than 24kHz = AAC SBR (HE-AAC)

  if (/firefox/i.test(userAgent)) {
    if (adtsSamplingIndex >= 6) {
      adtsObjectType = 5;
      config = new Array(4); // HE-AAC uses SBR (Spectral Band Replication) , high frequencies are constructed from low frequencies
      // there is a factor 2 between frame sample rate and output sample rate
      // multiply frequency by 2 (see table below, equivalent to substract 3)

      adtsExtensionSamplingIndex = adtsSamplingIndex - 3;
    } else {
      adtsObjectType = 2;
      config = new Array(2);
      adtsExtensionSamplingIndex = adtsSamplingIndex;
    } // Android : always use AAC

  } else if (userAgent.indexOf('android') !== -1) {
    adtsObjectType = 2;
    config = new Array(2);
    adtsExtensionSamplingIndex = adtsSamplingIndex;
  } else {
    /*  for other browsers (Chrome/Vivaldi/Opera ...)
        always force audio type to be HE-AAC SBR, as some browsers do not support audio codec switch properly (like Chrome ...)
    */
    adtsObjectType = 5;
    config = new Array(4); // if (manifest codec is HE-AAC or HE-AACv2) OR (manifest codec not specified AND frequency less than 24kHz)

    if (audioCodec && (audioCodec.indexOf('mp4a.40.29') !== -1 || audioCodec.indexOf('mp4a.40.5') !== -1) || !audioCodec && adtsSamplingIndex >= 6) {
      // HE-AAC uses SBR (Spectral Band Replication) , high frequencies are constructed from low frequencies
      // there is a factor 2 between frame sample rate and output sample rate
      // multiply frequency by 2 (see table below, equivalent to substract 3)
      adtsExtensionSamplingIndex = adtsSamplingIndex - 3;
    } else {
      // if (manifest codec is AAC) AND (frequency less than 24kHz AND nb channel is 1) OR (manifest codec not specified and mono audio)
      // Chrome fails to play back with low frequency AAC LC mono when initialized with HE-AAC.  This is not a problem with stereo.
      if (audioCodec && audioCodec.indexOf('mp4a.40.2') !== -1 && (adtsSamplingIndex >= 6 && adtsChanelConfig === 1 || /vivaldi/i.test(userAgent)) || !audioCodec && adtsChanelConfig === 1) {
        adtsObjectType = 2;
        config = new Array(2);
      }

      adtsExtensionSamplingIndex = adtsSamplingIndex;
    }
  }
  /* refer to http://wiki.multimedia.cx/index.php?title=MPEG-4_Audio#Audio_Specific_Config
      ISO 14496-3 (AAC).pdf - Table 1.13 — Syntax of AudioSpecificConfig()
    Audio Profile / Audio Object Type
    0: Null
    1: AAC Main
    2: AAC LC (Low Complexity)
    3: AAC SSR (Scalable Sample Rate)
    4: AAC LTP (Long Term Prediction)
    5: SBR (Spectral Band Replication)
    6: AAC Scalable
   sampling freq
    0: 96000 Hz
    1: 88200 Hz
    2: 64000 Hz
    3: 48000 Hz
    4: 44100 Hz
    5: 32000 Hz
    6: 24000 Hz
    7: 22050 Hz
    8: 16000 Hz
    9: 12000 Hz
    10: 11025 Hz
    11: 8000 Hz
    12: 7350 Hz
    13: Reserved
    14: Reserved
    15: frequency is written explictly
    Channel Configurations
    These are the channel configurations:
    0: Defined in AOT Specifc Config
    1: 1 channel: front-center
    2: 2 channels: front-left, front-right
  */
  // audioObjectType = profile => profile, the MPEG-4 Audio Object Type minus 1


  config[0] = adtsObjectType << 3; // samplingFrequencyIndex

  config[0] |= (adtsSamplingIndex & 0x0e) >> 1;
  config[1] |= (adtsSamplingIndex & 0x01) << 7; // channelConfiguration

  config[1] |= adtsChanelConfig << 3;

  if (adtsObjectType === 5) {
    // adtsExtensionSampleingIndex
    config[1] |= (adtsExtensionSamplingIndex & 0x0e) >> 1;
    config[2] = (adtsExtensionSamplingIndex & 0x01) << 7; // adtsObjectType (force to 2, chrome is checking that object type is less than 5 ???
    //    https://chromium.googlesource.com/chromium/src.git/+/master/media/formats/mp4/aac.cc

    config[2] |= 2 << 2;
    config[3] = 0;
  }

  return {
    config: config,
    samplerate: adtsSampleingRates[adtsSamplingIndex],
    channelCount: adtsChanelConfig,
    codec: 'mp4a.40.' + adtsObjectType,
    manifestCodec: manifestCodec
  };
}
function isHeaderPattern(data, offset) {
  return data[offset] === 0xff && (data[offset + 1] & 0xf6) === 0xf0;
}
function getHeaderLength(data, offset) {
  return data[offset + 1] & 0x01 ? 7 : 9;
}
function getFullFrameLength(data, offset) {
  return (data[offset + 3] & 0x03) << 11 | data[offset + 4] << 3 | (data[offset + 5] & 0xe0) >>> 5;
}
function canGetFrameLength(data, offset) {
  return offset + 5 < data.length;
}
function isHeader(data, offset) {
  // Look for ADTS header | 1111 1111 | 1111 X00X | where X can be either 0 or 1
  // Layer bits (position 14 and 15) in header should be always 0 for ADTS
  // More info https://wiki.multimedia.cx/index.php?title=ADTS
  return offset + 1 < data.length && isHeaderPattern(data, offset);
}
function canParse(data, offset) {
  return canGetFrameLength(data, offset) && isHeaderPattern(data, offset) && getFullFrameLength(data, offset) <= data.length - offset;
}
function probe(data, offset) {
  // same as isHeader but we also check that ADTS frame follows last ADTS frame
  // or end of data is reached
  if (isHeader(data, offset)) {
    // ADTS header Length
    var headerLength = getHeaderLength(data, offset);

    if (offset + headerLength >= data.length) {
      return false;
    } // ADTS frame Length


    var frameLength = getFullFrameLength(data, offset);

    if (frameLength <= headerLength) {
      return false;
    }

    var newOffset = offset + frameLength;
    return newOffset === data.length || isHeader(data, newOffset);
  }

  return false;
}
function initTrackConfig(track, observer, data, offset, audioCodec) {
  if (!track.samplerate) {
    var config = getAudioConfig(observer, data, offset, audioCodec);

    if (!config) {
      return;
    }

    track.config = config.config;
    track.samplerate = config.samplerate;
    track.channelCount = config.channelCount;
    track.codec = config.codec;
    track.manifestCodec = config.manifestCodec;
    _utils_logger__WEBPACK_IMPORTED_MODULE_0__["logger"].log("parsed codec:" + track.codec + ", rate:" + config.samplerate + ", channels:" + config.channelCount);
  }
}
function getFrameDuration(samplerate) {
  return 1024 * 90000 / samplerate;
}
function parseFrameHeader(data, offset, pts, frameIndex, frameDuration) {
  // The protection skip bit tells us if we have 2 bytes of CRC data at the end of the ADTS header
  var headerLength = getHeaderLength(data, offset); // retrieve frame size

  var frameLength = getFullFrameLength(data, offset);
  frameLength -= headerLength;

  if (frameLength > 0) {
    var stamp = pts + frameIndex * frameDuration; // logger.log(`AAC frame, offset/length/total/pts:${offset+headerLength}/${frameLength}/${data.byteLength}/${(stamp/90).toFixed(0)}`);

    return {
      headerLength: headerLength,
      frameLength: frameLength,
      stamp: stamp
    };
  }
}
function appendFrame(track, data, offset, pts, frameIndex) {
  var frameDuration = getFrameDuration(track.samplerate);
  var header = parseFrameHeader(data, offset, pts, frameIndex, frameDuration);

  if (header) {
    var frameLength = header.frameLength,
        headerLength = header.headerLength,
        stamp = header.stamp;
    var length = headerLength + frameLength;
    var missing = Math.max(0, offset + length - data.length); // logger.log(`AAC frame ${frameIndex}, pts:${stamp} length@offset/total: ${frameLength}@${offset+headerLength}/${data.byteLength} missing: ${missing}`);

    var unit;

    if (missing) {
      unit = new Uint8Array(length - headerLength);
      unit.set(data.subarray(offset + headerLength, data.length), 0);
    } else {
      unit = data.subarray(offset + headerLength, offset + length);
    }

    var sample = {
      unit: unit,
      pts: stamp
    };

    if (!missing) {
      track.samples.push(sample);
    }

    return {
      sample: sample,
      length: length,
      missing: missing
    };
  }
}

/***/ }),

/***/ "./src/demux/base-audio-demuxer.ts":
/*!*****************************************!*\
  !*** ./src/demux/base-audio-demuxer.ts ***!
  \*****************************************/
/*! exports provided: initPTSFn, default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "initPTSFn", function() { return initPTSFn; });
/* harmony import */ var _home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./src/polyfills/number */ "./src/polyfills/number.ts");
/* harmony import */ var _demux_id3__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../demux/id3 */ "./src/demux/id3.ts");
/* harmony import */ var _dummy_demuxed_track__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./dummy-demuxed-track */ "./src/demux/dummy-demuxed-track.ts");
/* harmony import */ var _utils_mp4_tools__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../utils/mp4-tools */ "./src/utils/mp4-tools.ts");
/* harmony import */ var _utils_typed_array__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../utils/typed-array */ "./src/utils/typed-array.ts");






var BaseAudioDemuxer = /*#__PURE__*/function () {
  function BaseAudioDemuxer() {
    this._audioTrack = void 0;
    this._id3Track = void 0;
    this.frameIndex = 0;
    this.cachedData = null;
    this.initPTS = null;
  }

  var _proto = BaseAudioDemuxer.prototype;

  _proto.resetInitSegment = function resetInitSegment(audioCodec, videoCodec, duration) {
    this._id3Track = {
      type: 'id3',
      id: 3,
      pid: -1,
      inputTimeScale: 90000,
      sequenceNumber: 0,
      samples: [],
      dropped: 0
    };
  };

  _proto.resetTimeStamp = function resetTimeStamp() {};

  _proto.resetContiguity = function resetContiguity() {};

  _proto.canParse = function canParse(data, offset) {
    return false;
  };

  _proto.appendFrame = function appendFrame(track, data, offset) {} // feed incoming data to the front of the parsing pipeline
  ;

  _proto.demux = function demux(data, timeOffset) {
    if (this.cachedData) {
      data = Object(_utils_mp4_tools__WEBPACK_IMPORTED_MODULE_3__["appendUint8Array"])(this.cachedData, data);
      this.cachedData = null;
    }

    var id3Data = _demux_id3__WEBPACK_IMPORTED_MODULE_1__["getID3Data"](data, 0);
    var offset = id3Data ? id3Data.length : 0;
    var lastDataIndex;
    var pts;
    var track = this._audioTrack;
    var id3Track = this._id3Track;
    var timestamp = id3Data ? _demux_id3__WEBPACK_IMPORTED_MODULE_1__["getTimeStamp"](id3Data) : undefined;
    var length = data.length;

    if (this.frameIndex === 0 || this.initPTS === null) {
      this.initPTS = initPTSFn(timestamp, timeOffset);
    } // more expressive than alternative: id3Data?.length


    if (id3Data && id3Data.length > 0) {
      id3Track.samples.push({
        pts: this.initPTS,
        dts: this.initPTS,
        data: id3Data
      });
    }

    pts = this.initPTS;

    while (offset < length) {
      if (this.canParse(data, offset)) {
        var frame = this.appendFrame(track, data, offset);

        if (frame) {
          this.frameIndex++;
          pts = frame.sample.pts;
          offset += frame.length;
          lastDataIndex = offset;
        } else {
          offset = length;
        }
      } else if (_demux_id3__WEBPACK_IMPORTED_MODULE_1__["canParse"](data, offset)) {
        // after a ID3.canParse, a call to ID3.getID3Data *should* always returns some data
        id3Data = _demux_id3__WEBPACK_IMPORTED_MODULE_1__["getID3Data"](data, offset);
        id3Track.samples.push({
          pts: pts,
          dts: pts,
          data: id3Data
        });
        offset += id3Data.length;
        lastDataIndex = offset;
      } else {
        offset++;
      }

      if (offset === length && lastDataIndex !== length) {
        var partialData = Object(_utils_typed_array__WEBPACK_IMPORTED_MODULE_4__["sliceUint8"])(data, lastDataIndex);

        if (this.cachedData) {
          this.cachedData = Object(_utils_mp4_tools__WEBPACK_IMPORTED_MODULE_3__["appendUint8Array"])(this.cachedData, partialData);
        } else {
          this.cachedData = partialData;
        }
      }
    }

    return {
      audioTrack: track,
      avcTrack: Object(_dummy_demuxed_track__WEBPACK_IMPORTED_MODULE_2__["dummyTrack"])(),
      id3Track: id3Track,
      textTrack: Object(_dummy_demuxed_track__WEBPACK_IMPORTED_MODULE_2__["dummyTrack"])()
    };
  };

  _proto.demuxSampleAes = function demuxSampleAes(data, keyData, timeOffset) {
    return Promise.reject(new Error("[" + this + "] This demuxer does not support Sample-AES decryption"));
  };

  _proto.flush = function flush(timeOffset) {
    // Parse cache in case of remaining frames.
    var cachedData = this.cachedData;

    if (cachedData) {
      this.cachedData = null;
      this.demux(cachedData, 0);
    }

    this.frameIndex = 0;
    return {
      audioTrack: this._audioTrack,
      avcTrack: Object(_dummy_demuxed_track__WEBPACK_IMPORTED_MODULE_2__["dummyTrack"])(),
      id3Track: this._id3Track,
      textTrack: Object(_dummy_demuxed_track__WEBPACK_IMPORTED_MODULE_2__["dummyTrack"])()
    };
  };

  _proto.destroy = function destroy() {};

  return BaseAudioDemuxer;
}();
/**
 * Initialize PTS
 * <p>
 *    use timestamp unless it is undefined, NaN or Infinity
 * </p>
 */


var initPTSFn = function initPTSFn(timestamp, timeOffset) {
  return Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(timestamp) ? timestamp * 90 : timeOffset * 90000;
};
/* harmony default export */ __webpack_exports__["default"] = (BaseAudioDemuxer);

/***/ }),

/***/ "./src/demux/chunk-cache.ts":
/*!**********************************!*\
  !*** ./src/demux/chunk-cache.ts ***!
  \**********************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "default", function() { return ChunkCache; });
var ChunkCache = /*#__PURE__*/function () {
  function ChunkCache() {
    this.chunks = [];
    this.dataLength = 0;
  }

  var _proto = ChunkCache.prototype;

  _proto.push = function push(chunk) {
    this.chunks.push(chunk);
    this.dataLength += chunk.length;
  };

  _proto.flush = function flush() {
    var chunks = this.chunks,
        dataLength = this.dataLength;
    var result;

    if (!chunks.length) {
      return new Uint8Array(0);
    } else if (chunks.length === 1) {
      result = chunks[0];
    } else {
      result = concatUint8Arrays(chunks, dataLength);
    }

    this.reset();
    return result;
  };

  _proto.reset = function reset() {
    this.chunks.length = 0;
    this.dataLength = 0;
  };

  return ChunkCache;
}();



function concatUint8Arrays(chunks, dataLength) {
  var result = new Uint8Array(dataLength);
  var offset = 0;

  for (var i = 0; i < chunks.length; i++) {
    var chunk = chunks[i];
    result.set(chunk, offset);
    offset += chunk.length;
  }

  return result;
}

/***/ }),

/***/ "./src/demux/dummy-demuxed-track.ts":
/*!******************************************!*\
  !*** ./src/demux/dummy-demuxed-track.ts ***!
  \******************************************/
/*! exports provided: dummyTrack */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "dummyTrack", function() { return dummyTrack; });
function dummyTrack() {
  return {
    type: '',
    id: -1,
    pid: -1,
    inputTimeScale: 90000,
    sequenceNumber: -1,
    samples: [],
    dropped: 0
  };
}

/***/ }),

/***/ "./src/demux/exp-golomb.ts":
/*!*********************************!*\
  !*** ./src/demux/exp-golomb.ts ***!
  \*********************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../utils/logger */ "./src/utils/logger.ts");
/**
 * Parser for exponential Golomb codes, a variable-bitwidth number encoding scheme used by h264.
 */


var ExpGolomb = /*#__PURE__*/function () {
  function ExpGolomb(data) {
    this.data = void 0;
    this.bytesAvailable = void 0;
    this.word = void 0;
    this.bitsAvailable = void 0;
    this.data = data; // the number of bytes left to examine in this.data

    this.bytesAvailable = data.byteLength; // the current word being examined

    this.word = 0; // :uint
    // the number of bits left to examine in the current word

    this.bitsAvailable = 0; // :uint
  } // ():void


  var _proto = ExpGolomb.prototype;

  _proto.loadWord = function loadWord() {
    var data = this.data;
    var bytesAvailable = this.bytesAvailable;
    var position = data.byteLength - bytesAvailable;
    var workingBytes = new Uint8Array(4);
    var availableBytes = Math.min(4, bytesAvailable);

    if (availableBytes === 0) {
      throw new Error('no bytes available');
    }

    workingBytes.set(data.subarray(position, position + availableBytes));
    this.word = new DataView(workingBytes.buffer).getUint32(0); // track the amount of this.data that has been processed

    this.bitsAvailable = availableBytes * 8;
    this.bytesAvailable -= availableBytes;
  } // (count:int):void
  ;

  _proto.skipBits = function skipBits(count) {
    var skipBytes; // :int

    if (this.bitsAvailable > count) {
      this.word <<= count;
      this.bitsAvailable -= count;
    } else {
      count -= this.bitsAvailable;
      skipBytes = count >> 3;
      count -= skipBytes >> 3;
      this.bytesAvailable -= skipBytes;
      this.loadWord();
      this.word <<= count;
      this.bitsAvailable -= count;
    }
  } // (size:int):uint
  ;

  _proto.readBits = function readBits(size) {
    var bits = Math.min(this.bitsAvailable, size); // :uint

    var valu = this.word >>> 32 - bits; // :uint

    if (size > 32) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_0__["logger"].error('Cannot read more than 32 bits at a time');
    }

    this.bitsAvailable -= bits;

    if (this.bitsAvailable > 0) {
      this.word <<= bits;
    } else if (this.bytesAvailable > 0) {
      this.loadWord();
    }

    bits = size - bits;

    if (bits > 0 && this.bitsAvailable) {
      return valu << bits | this.readBits(bits);
    } else {
      return valu;
    }
  } // ():uint
  ;

  _proto.skipLZ = function skipLZ() {
    var leadingZeroCount; // :uint

    for (leadingZeroCount = 0; leadingZeroCount < this.bitsAvailable; ++leadingZeroCount) {
      if ((this.word & 0x80000000 >>> leadingZeroCount) !== 0) {
        // the first bit of working word is 1
        this.word <<= leadingZeroCount;
        this.bitsAvailable -= leadingZeroCount;
        return leadingZeroCount;
      }
    } // we exhausted word and still have not found a 1


    this.loadWord();
    return leadingZeroCount + this.skipLZ();
  } // ():void
  ;

  _proto.skipUEG = function skipUEG() {
    this.skipBits(1 + this.skipLZ());
  } // ():void
  ;

  _proto.skipEG = function skipEG() {
    this.skipBits(1 + this.skipLZ());
  } // ():uint
  ;

  _proto.readUEG = function readUEG() {
    var clz = this.skipLZ(); // :uint

    return this.readBits(clz + 1) - 1;
  } // ():int
  ;

  _proto.readEG = function readEG() {
    var valu = this.readUEG(); // :int

    if (0x01 & valu) {
      // the number is odd if the low order bit is set
      return 1 + valu >>> 1; // add 1 to make it even, and divide by 2
    } else {
      return -1 * (valu >>> 1); // divide by two then make it negative
    }
  } // Some convenience functions
  // :Boolean
  ;

  _proto.readBoolean = function readBoolean() {
    return this.readBits(1) === 1;
  } // ():int
  ;

  _proto.readUByte = function readUByte() {
    return this.readBits(8);
  } // ():int
  ;

  _proto.readUShort = function readUShort() {
    return this.readBits(16);
  } // ():int
  ;

  _proto.readUInt = function readUInt() {
    return this.readBits(32);
  }
  /**
   * Advance the ExpGolomb decoder past a scaling list. The scaling
   * list is optionally transmitted as part of a sequence parameter
   * set and is not relevant to transmuxing.
   * @param count the number of entries in this scaling list
   * @see Recommendation ITU-T H.264, Section 7.3.2.1.1.1
   */
  ;

  _proto.skipScalingList = function skipScalingList(count) {
    var lastScale = 8;
    var nextScale = 8;
    var deltaScale;

    for (var j = 0; j < count; j++) {
      if (nextScale !== 0) {
        deltaScale = this.readEG();
        nextScale = (lastScale + deltaScale + 256) % 256;
      }

      lastScale = nextScale === 0 ? lastScale : nextScale;
    }
  }
  /**
   * Read a sequence parameter set and return some interesting video
   * properties. A sequence parameter set is the H264 metadata that
   * describes the properties of upcoming video frames.
   * @param data {Uint8Array} the bytes of a sequence parameter set
   * @return {object} an object with configuration parsed from the
   * sequence parameter set, including the dimensions of the
   * associated video frames.
   */
  ;

  _proto.readSPS = function readSPS() {
    var frameCropLeftOffset = 0;
    var frameCropRightOffset = 0;
    var frameCropTopOffset = 0;
    var frameCropBottomOffset = 0;
    var numRefFramesInPicOrderCntCycle;
    var scalingListCount;
    var i;
    var readUByte = this.readUByte.bind(this);
    var readBits = this.readBits.bind(this);
    var readUEG = this.readUEG.bind(this);
    var readBoolean = this.readBoolean.bind(this);
    var skipBits = this.skipBits.bind(this);
    var skipEG = this.skipEG.bind(this);
    var skipUEG = this.skipUEG.bind(this);
    var skipScalingList = this.skipScalingList.bind(this);
    readUByte();
    var profileIdc = readUByte(); // profile_idc

    readBits(5); // profileCompat constraint_set[0-4]_flag, u(5)

    skipBits(3); // reserved_zero_3bits u(3),

    readUByte(); // level_idc u(8)

    skipUEG(); // seq_parameter_set_id
    // some profiles have more optional data we don't need

    if (profileIdc === 100 || profileIdc === 110 || profileIdc === 122 || profileIdc === 244 || profileIdc === 44 || profileIdc === 83 || profileIdc === 86 || profileIdc === 118 || profileIdc === 128) {
      var chromaFormatIdc = readUEG();

      if (chromaFormatIdc === 3) {
        skipBits(1);
      } // separate_colour_plane_flag


      skipUEG(); // bit_depth_luma_minus8

      skipUEG(); // bit_depth_chroma_minus8

      skipBits(1); // qpprime_y_zero_transform_bypass_flag

      if (readBoolean()) {
        // seq_scaling_matrix_present_flag
        scalingListCount = chromaFormatIdc !== 3 ? 8 : 12;

        for (i = 0; i < scalingListCount; i++) {
          if (readBoolean()) {
            // seq_scaling_list_present_flag[ i ]
            if (i < 6) {
              skipScalingList(16);
            } else {
              skipScalingList(64);
            }
          }
        }
      }
    }

    skipUEG(); // log2_max_frame_num_minus4

    var picOrderCntType = readUEG();

    if (picOrderCntType === 0) {
      readUEG(); // log2_max_pic_order_cnt_lsb_minus4
    } else if (picOrderCntType === 1) {
      skipBits(1); // delta_pic_order_always_zero_flag

      skipEG(); // offset_for_non_ref_pic

      skipEG(); // offset_for_top_to_bottom_field

      numRefFramesInPicOrderCntCycle = readUEG();

      for (i = 0; i < numRefFramesInPicOrderCntCycle; i++) {
        skipEG();
      } // offset_for_ref_frame[ i ]

    }

    skipUEG(); // max_num_ref_frames

    skipBits(1); // gaps_in_frame_num_value_allowed_flag

    var picWidthInMbsMinus1 = readUEG();
    var picHeightInMapUnitsMinus1 = readUEG();
    var frameMbsOnlyFlag = readBits(1);

    if (frameMbsOnlyFlag === 0) {
      skipBits(1);
    } // mb_adaptive_frame_field_flag


    skipBits(1); // direct_8x8_inference_flag

    if (readBoolean()) {
      // frame_cropping_flag
      frameCropLeftOffset = readUEG();
      frameCropRightOffset = readUEG();
      frameCropTopOffset = readUEG();
      frameCropBottomOffset = readUEG();
    }

    var pixelRatio = [1, 1];

    if (readBoolean()) {
      // vui_parameters_present_flag
      if (readBoolean()) {
        // aspect_ratio_info_present_flag
        var aspectRatioIdc = readUByte();

        switch (aspectRatioIdc) {
          case 1:
            pixelRatio = [1, 1];
            break;

          case 2:
            pixelRatio = [12, 11];
            break;

          case 3:
            pixelRatio = [10, 11];
            break;

          case 4:
            pixelRatio = [16, 11];
            break;

          case 5:
            pixelRatio = [40, 33];
            break;

          case 6:
            pixelRatio = [24, 11];
            break;

          case 7:
            pixelRatio = [20, 11];
            break;

          case 8:
            pixelRatio = [32, 11];
            break;

          case 9:
            pixelRatio = [80, 33];
            break;

          case 10:
            pixelRatio = [18, 11];
            break;

          case 11:
            pixelRatio = [15, 11];
            break;

          case 12:
            pixelRatio = [64, 33];
            break;

          case 13:
            pixelRatio = [160, 99];
            break;

          case 14:
            pixelRatio = [4, 3];
            break;

          case 15:
            pixelRatio = [3, 2];
            break;

          case 16:
            pixelRatio = [2, 1];
            break;

          case 255:
            {
              pixelRatio = [readUByte() << 8 | readUByte(), readUByte() << 8 | readUByte()];
              break;
            }
        }
      }
    }

    return {
      width: Math.ceil((picWidthInMbsMinus1 + 1) * 16 - frameCropLeftOffset * 2 - frameCropRightOffset * 2),
      height: (2 - frameMbsOnlyFlag) * (picHeightInMapUnitsMinus1 + 1) * 16 - (frameMbsOnlyFlag ? 2 : 4) * (frameCropTopOffset + frameCropBottomOffset),
      pixelRatio: pixelRatio
    };
  };

  _proto.readSliceType = function readSliceType() {
    // skip NALu type
    this.readUByte(); // discard first_mb_in_slice

    this.readUEG(); // return slice_type

    return this.readUEG();
  };

  return ExpGolomb;
}();

/* harmony default export */ __webpack_exports__["default"] = (ExpGolomb);

/***/ }),

/***/ "./src/demux/id3.ts":
/*!**************************!*\
  !*** ./src/demux/id3.ts ***!
  \**************************/
/*! exports provided: isHeader, isFooter, getID3Data, canParse, getTimeStamp, isTimeStampFrame, getID3Frames, decodeFrame, utf8ArrayToStr, testables */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "isHeader", function() { return isHeader; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "isFooter", function() { return isFooter; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getID3Data", function() { return getID3Data; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "canParse", function() { return canParse; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getTimeStamp", function() { return getTimeStamp; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "isTimeStampFrame", function() { return isTimeStampFrame; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getID3Frames", function() { return getID3Frames; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "decodeFrame", function() { return decodeFrame; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "utf8ArrayToStr", function() { return utf8ArrayToStr; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "testables", function() { return testables; });
// breaking up those two types in order to clarify what is happening in the decoding path.

/**
 * Returns true if an ID3 header can be found at offset in data
 * @param {Uint8Array} data - The data to search in
 * @param {number} offset - The offset at which to start searching
 * @return {boolean} - True if an ID3 header is found
 */
var isHeader = function isHeader(data, offset) {
  /*
   * http://id3.org/id3v2.3.0
   * [0]     = 'I'
   * [1]     = 'D'
   * [2]     = '3'
   * [3,4]   = {Version}
   * [5]     = {Flags}
   * [6-9]   = {ID3 Size}
   *
   * An ID3v2 tag can be detected with the following pattern:
   *  $49 44 33 yy yy xx zz zz zz zz
   * Where yy is less than $FF, xx is the 'flags' byte and zz is less than $80
   */
  if (offset + 10 <= data.length) {
    // look for 'ID3' identifier
    if (data[offset] === 0x49 && data[offset + 1] === 0x44 && data[offset + 2] === 0x33) {
      // check version is within range
      if (data[offset + 3] < 0xff && data[offset + 4] < 0xff) {
        // check size is within range
        if (data[offset + 6] < 0x80 && data[offset + 7] < 0x80 && data[offset + 8] < 0x80 && data[offset + 9] < 0x80) {
          return true;
        }
      }
    }
  }

  return false;
};
/**
 * Returns true if an ID3 footer can be found at offset in data
 * @param {Uint8Array} data - The data to search in
 * @param {number} offset - The offset at which to start searching
 * @return {boolean} - True if an ID3 footer is found
 */

var isFooter = function isFooter(data, offset) {
  /*
   * The footer is a copy of the header, but with a different identifier
   */
  if (offset + 10 <= data.length) {
    // look for '3DI' identifier
    if (data[offset] === 0x33 && data[offset + 1] === 0x44 && data[offset + 2] === 0x49) {
      // check version is within range
      if (data[offset + 3] < 0xff && data[offset + 4] < 0xff) {
        // check size is within range
        if (data[offset + 6] < 0x80 && data[offset + 7] < 0x80 && data[offset + 8] < 0x80 && data[offset + 9] < 0x80) {
          return true;
        }
      }
    }
  }

  return false;
};
/**
 * Returns any adjacent ID3 tags found in data starting at offset, as one block of data
 * @param {Uint8Array} data - The data to search in
 * @param {number} offset - The offset at which to start searching
 * @return {Uint8Array | undefined} - The block of data containing any ID3 tags found
 * or *undefined* if no header is found at the starting offset
 */

var getID3Data = function getID3Data(data, offset) {
  var front = offset;
  var length = 0;

  while (isHeader(data, offset)) {
    // ID3 header is 10 bytes
    length += 10;
    var size = readSize(data, offset + 6);
    length += size;

    if (isFooter(data, offset + 10)) {
      // ID3 footer is 10 bytes
      length += 10;
    }

    offset += length;
  }

  if (length > 0) {
    return data.subarray(front, front + length);
  }

  return undefined;
};

var readSize = function readSize(data, offset) {
  var size = 0;
  size = (data[offset] & 0x7f) << 21;
  size |= (data[offset + 1] & 0x7f) << 14;
  size |= (data[offset + 2] & 0x7f) << 7;
  size |= data[offset + 3] & 0x7f;
  return size;
};

var canParse = function canParse(data, offset) {
  return isHeader(data, offset) && readSize(data, offset + 6) + 10 <= data.length - offset;
};
/**
 * Searches for the Elementary Stream timestamp found in the ID3 data chunk
 * @param {Uint8Array} data - Block of data containing one or more ID3 tags
 * @return {number | undefined} - The timestamp
 */

var getTimeStamp = function getTimeStamp(data) {
  var frames = getID3Frames(data);

  for (var i = 0; i < frames.length; i++) {
    var frame = frames[i];

    if (isTimeStampFrame(frame)) {
      return readTimeStamp(frame);
    }
  }

  return undefined;
};
/**
 * Returns true if the ID3 frame is an Elementary Stream timestamp frame
 * @param {ID3 frame} frame
 */

var isTimeStampFrame = function isTimeStampFrame(frame) {
  return frame && frame.key === 'PRIV' && frame.info === 'com.apple.streaming.transportStreamTimestamp';
};

var getFrameData = function getFrameData(data) {
  /*
  Frame ID       $xx xx xx xx (four characters)
  Size           $xx xx xx xx
  Flags          $xx xx
  */
  var type = String.fromCharCode(data[0], data[1], data[2], data[3]);
  var size = readSize(data, 4); // skip frame id, size, and flags

  var offset = 10;
  return {
    type: type,
    size: size,
    data: data.subarray(offset, offset + size)
  };
};
/**
 * Returns an array of ID3 frames found in all the ID3 tags in the id3Data
 * @param {Uint8Array} id3Data - The ID3 data containing one or more ID3 tags
 * @return {ID3.Frame[]} - Array of ID3 frame objects
 */


var getID3Frames = function getID3Frames(id3Data) {
  var offset = 0;
  var frames = [];

  while (isHeader(id3Data, offset)) {
    var size = readSize(id3Data, offset + 6); // skip past ID3 header

    offset += 10;
    var end = offset + size; // loop through frames in the ID3 tag

    while (offset + 8 < end) {
      var frameData = getFrameData(id3Data.subarray(offset));
      var frame = decodeFrame(frameData);

      if (frame) {
        frames.push(frame);
      } // skip frame header and frame data


      offset += frameData.size + 10;
    }

    if (isFooter(id3Data, offset)) {
      offset += 10;
    }
  }

  return frames;
};
var decodeFrame = function decodeFrame(frame) {
  if (frame.type === 'PRIV') {
    return decodePrivFrame(frame);
  } else if (frame.type[0] === 'W') {
    return decodeURLFrame(frame);
  }

  return decodeTextFrame(frame);
};

var decodePrivFrame = function decodePrivFrame(frame) {
  /*
  Format: <text string>\0<binary data>
  */
  if (frame.size < 2) {
    return undefined;
  }

  var owner = utf8ArrayToStr(frame.data, true);
  var privateData = new Uint8Array(frame.data.subarray(owner.length + 1));
  return {
    key: frame.type,
    info: owner,
    data: privateData.buffer
  };
};

var decodeTextFrame = function decodeTextFrame(frame) {
  if (frame.size < 2) {
    return undefined;
  }

  if (frame.type === 'TXXX') {
    /*
    Format:
    [0]   = {Text Encoding}
    [1-?] = {Description}\0{Value}
    */
    var index = 1;
    var description = utf8ArrayToStr(frame.data.subarray(index), true);
    index += description.length + 1;
    var value = utf8ArrayToStr(frame.data.subarray(index));
    return {
      key: frame.type,
      info: description,
      data: value
    };
  }
  /*
  Format:
  [0]   = {Text Encoding}
  [1-?] = {Value}
  */


  var text = utf8ArrayToStr(frame.data.subarray(1));
  return {
    key: frame.type,
    data: text
  };
};

var decodeURLFrame = function decodeURLFrame(frame) {
  if (frame.type === 'WXXX') {
    /*
    Format:
    [0]   = {Text Encoding}
    [1-?] = {Description}\0{URL}
    */
    if (frame.size < 2) {
      return undefined;
    }

    var index = 1;
    var description = utf8ArrayToStr(frame.data.subarray(index), true);
    index += description.length + 1;
    var value = utf8ArrayToStr(frame.data.subarray(index));
    return {
      key: frame.type,
      info: description,
      data: value
    };
  }
  /*
  Format:
  [0-?] = {URL}
  */


  var url = utf8ArrayToStr(frame.data);
  return {
    key: frame.type,
    data: url
  };
};

var readTimeStamp = function readTimeStamp(timeStampFrame) {
  if (timeStampFrame.data.byteLength === 8) {
    var data = new Uint8Array(timeStampFrame.data); // timestamp is 33 bit expressed as a big-endian eight-octet number,
    // with the upper 31 bits set to zero.

    var pts33Bit = data[3] & 0x1;
    var timestamp = (data[4] << 23) + (data[5] << 15) + (data[6] << 7) + data[7];
    timestamp /= 45;

    if (pts33Bit) {
      timestamp += 47721858.84;
    } // 2^32 / 90


    return Math.round(timestamp);
  }

  return undefined;
}; // http://stackoverflow.com/questions/8936984/uint8array-to-string-in-javascript/22373197
// http://www.onicos.com/staff/iz/amuse/javascript/expert/utf.txt

/* utf.js - UTF-8 <=> UTF-16 convertion
 *
 * Copyright (C) 1999 Masanao Izumo <iz@onicos.co.jp>
 * Version: 1.0
 * LastModified: Dec 25 1999
 * This library is free.  You can redistribute it and/or modify it.
 */


var utf8ArrayToStr = function utf8ArrayToStr(array, exitOnNull) {
  if (exitOnNull === void 0) {
    exitOnNull = false;
  }

  var decoder = getTextDecoder();

  if (decoder) {
    var decoded = decoder.decode(array);

    if (exitOnNull) {
      // grab up to the first null
      var idx = decoded.indexOf('\0');
      return idx !== -1 ? decoded.substring(0, idx) : decoded;
    } // remove any null characters


    return decoded.replace(/\0/g, '');
  }

  var len = array.length;
  var c;
  var char2;
  var char3;
  var out = '';
  var i = 0;

  while (i < len) {
    c = array[i++];

    if (c === 0x00 && exitOnNull) {
      return out;
    } else if (c === 0x00 || c === 0x03) {
      // If the character is 3 (END_OF_TEXT) or 0 (NULL) then skip it
      continue;
    }

    switch (c >> 4) {
      case 0:
      case 1:
      case 2:
      case 3:
      case 4:
      case 5:
      case 6:
      case 7:
        // 0xxxxxxx
        out += String.fromCharCode(c);
        break;

      case 12:
      case 13:
        // 110x xxxx   10xx xxxx
        char2 = array[i++];
        out += String.fromCharCode((c & 0x1f) << 6 | char2 & 0x3f);
        break;

      case 14:
        // 1110 xxxx  10xx xxxx  10xx xxxx
        char2 = array[i++];
        char3 = array[i++];
        out += String.fromCharCode((c & 0x0f) << 12 | (char2 & 0x3f) << 6 | (char3 & 0x3f) << 0);
        break;

      default:
    }
  }

  return out;
};
var testables = {
  decodeTextFrame: decodeTextFrame
};
var decoder;

function getTextDecoder() {
  if (!decoder && typeof self.TextDecoder !== 'undefined') {
    decoder = new self.TextDecoder('utf-8');
  }

  return decoder;
}

/***/ }),

/***/ "./src/demux/mp3demuxer.ts":
/*!*********************************!*\
  !*** ./src/demux/mp3demuxer.ts ***!
  \*********************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony import */ var _base_audio_demuxer__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./base-audio-demuxer */ "./src/demux/base-audio-demuxer.ts");
/* harmony import */ var _demux_id3__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../demux/id3 */ "./src/demux/id3.ts");
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../utils/logger */ "./src/utils/logger.ts");
/* harmony import */ var _mpegaudio__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./mpegaudio */ "./src/demux/mpegaudio.ts");
function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

/**
 * MP3 demuxer
 */





var MP3Demuxer = /*#__PURE__*/function (_BaseAudioDemuxer) {
  _inheritsLoose(MP3Demuxer, _BaseAudioDemuxer);

  function MP3Demuxer() {
    return _BaseAudioDemuxer.apply(this, arguments) || this;
  }

  var _proto = MP3Demuxer.prototype;

  _proto.resetInitSegment = function resetInitSegment(audioCodec, videoCodec, duration) {
    _BaseAudioDemuxer.prototype.resetInitSegment.call(this, audioCodec, videoCodec, duration);

    this._audioTrack = {
      container: 'audio/mpeg',
      type: 'audio',
      id: 2,
      pid: -1,
      sequenceNumber: 0,
      isAAC: false,
      samples: [],
      manifestCodec: audioCodec,
      duration: duration,
      inputTimeScale: 90000,
      dropped: 0
    };
  };

  MP3Demuxer.probe = function probe(data) {
    if (!data) {
      return false;
    } // check if data contains ID3 timestamp and MPEG sync word
    // Look for MPEG header | 1111 1111 | 111X XYZX | where X can be either 0 or 1 and Y or Z should be 1
    // Layer bits (position 14 and 15) in header should be always different from 0 (Layer I or Layer II or Layer III)
    // More info http://www.mp3-tech.org/programmer/frame_header.html


    var id3Data = _demux_id3__WEBPACK_IMPORTED_MODULE_1__["getID3Data"](data, 0) || [];
    var offset = id3Data.length;

    for (var length = data.length; offset < length; offset++) {
      if (_mpegaudio__WEBPACK_IMPORTED_MODULE_3__["probe"](data, offset)) {
        _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].log('MPEG Audio sync word found !');
        return true;
      }
    }

    return false;
  };

  _proto.canParse = function canParse(data, offset) {
    return _mpegaudio__WEBPACK_IMPORTED_MODULE_3__["canParse"](data, offset);
  };

  _proto.appendFrame = function appendFrame(track, data, offset) {
    if (this.initPTS === null) {
      return;
    }

    return _mpegaudio__WEBPACK_IMPORTED_MODULE_3__["appendFrame"](track, data, offset, this.initPTS, this.frameIndex);
  };

  return MP3Demuxer;
}(_base_audio_demuxer__WEBPACK_IMPORTED_MODULE_0__["default"]);

MP3Demuxer.minProbeByteLength = 4;
/* harmony default export */ __webpack_exports__["default"] = (MP3Demuxer);

/***/ }),

/***/ "./src/demux/mp4demuxer.ts":
/*!*********************************!*\
  !*** ./src/demux/mp4demuxer.ts ***!
  \*********************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony import */ var _utils_mp4_tools__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../utils/mp4-tools */ "./src/utils/mp4-tools.ts");
/* harmony import */ var _dummy_demuxed_track__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./dummy-demuxed-track */ "./src/demux/dummy-demuxed-track.ts");
/**
 * MP4 demuxer
 */



var MP4Demuxer = /*#__PURE__*/function () {
  function MP4Demuxer(observer, config) {
    this.remainderData = null;
    this.config = void 0;
    this.config = config;
  }

  var _proto = MP4Demuxer.prototype;

  _proto.resetTimeStamp = function resetTimeStamp() {};

  _proto.resetInitSegment = function resetInitSegment() {};

  _proto.resetContiguity = function resetContiguity() {};

  MP4Demuxer.probe = function probe(data) {
    // ensure we find a moof box in the first 16 kB
    return Object(_utils_mp4_tools__WEBPACK_IMPORTED_MODULE_0__["findBox"])({
      data: data,
      start: 0,
      end: Math.min(data.length, 16384)
    }, ['moof']).length > 0;
  };

  _proto.demux = function demux(data) {
    // Load all data into the avc track. The CMAF remuxer will look for the data in the samples object; the rest of the fields do not matter
    var avcSamples = data;
    var avcTrack = Object(_dummy_demuxed_track__WEBPACK_IMPORTED_MODULE_1__["dummyTrack"])();

    if (this.config.progressive) {
      // Split the bytestream into two ranges: one encompassing all data up until the start of the last moof, and everything else.
      // This is done to guarantee that we're sending valid data to MSE - when demuxing progressively, we have no guarantee
      // that the fetch loader gives us flush moof+mdat pairs. If we push jagged data to MSE, it will throw an exception.
      if (this.remainderData) {
        avcSamples = Object(_utils_mp4_tools__WEBPACK_IMPORTED_MODULE_0__["appendUint8Array"])(this.remainderData, data);
      }

      var segmentedData = Object(_utils_mp4_tools__WEBPACK_IMPORTED_MODULE_0__["segmentValidRange"])(avcSamples);
      this.remainderData = segmentedData.remainder;
      avcTrack.samples = segmentedData.valid || new Uint8Array();
    } else {
      avcTrack.samples = avcSamples;
    }

    return {
      audioTrack: Object(_dummy_demuxed_track__WEBPACK_IMPORTED_MODULE_1__["dummyTrack"])(),
      avcTrack: avcTrack,
      id3Track: Object(_dummy_demuxed_track__WEBPACK_IMPORTED_MODULE_1__["dummyTrack"])(),
      textTrack: Object(_dummy_demuxed_track__WEBPACK_IMPORTED_MODULE_1__["dummyTrack"])()
    };
  };

  _proto.flush = function flush() {
    var avcTrack = Object(_dummy_demuxed_track__WEBPACK_IMPORTED_MODULE_1__["dummyTrack"])();
    avcTrack.samples = this.remainderData || new Uint8Array();
    this.remainderData = null;
    return {
      audioTrack: Object(_dummy_demuxed_track__WEBPACK_IMPORTED_MODULE_1__["dummyTrack"])(),
      avcTrack: avcTrack,
      id3Track: Object(_dummy_demuxed_track__WEBPACK_IMPORTED_MODULE_1__["dummyTrack"])(),
      textTrack: Object(_dummy_demuxed_track__WEBPACK_IMPORTED_MODULE_1__["dummyTrack"])()
    };
  };

  _proto.demuxSampleAes = function demuxSampleAes(data, keyData, timeOffset) {
    return Promise.reject(new Error('The MP4 demuxer does not support SAMPLE-AES decryption'));
  };

  _proto.destroy = function destroy() {};

  return MP4Demuxer;
}();

MP4Demuxer.minProbeByteLength = 1024;
/* harmony default export */ __webpack_exports__["default"] = (MP4Demuxer);

/***/ }),

/***/ "./src/demux/mpegaudio.ts":
/*!********************************!*\
  !*** ./src/demux/mpegaudio.ts ***!
  \********************************/
/*! exports provided: appendFrame, parseHeader, isHeaderPattern, isHeader, canParse, probe */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "appendFrame", function() { return appendFrame; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "parseHeader", function() { return parseHeader; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "isHeaderPattern", function() { return isHeaderPattern; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "isHeader", function() { return isHeader; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "canParse", function() { return canParse; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "probe", function() { return probe; });
/**
 *  MPEG parser helper
 */
var chromeVersion = null;
var BitratesMap = [32, 64, 96, 128, 160, 192, 224, 256, 288, 320, 352, 384, 416, 448, 32, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 384, 32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 32, 48, 56, 64, 80, 96, 112, 128, 144, 160, 176, 192, 224, 256, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160];
var SamplingRateMap = [44100, 48000, 32000, 22050, 24000, 16000, 11025, 12000, 8000];
var SamplesCoefficients = [// MPEG 2.5
[0, // Reserved
72, // Layer3
144, // Layer2
12 // Layer1
], // Reserved
[0, // Reserved
0, // Layer3
0, // Layer2
0 // Layer1
], // MPEG 2
[0, // Reserved
72, // Layer3
144, // Layer2
12 // Layer1
], // MPEG 1
[0, // Reserved
144, // Layer3
144, // Layer2
12 // Layer1
]];
var BytesInSlot = [0, // Reserved
1, // Layer3
1, // Layer2
4 // Layer1
];
function appendFrame(track, data, offset, pts, frameIndex) {
  // Using http://www.datavoyage.com/mpgscript/mpeghdr.htm as a reference
  if (offset + 24 > data.length) {
    return;
  }

  var header = parseHeader(data, offset);

  if (header && offset + header.frameLength <= data.length) {
    var frameDuration = header.samplesPerFrame * 90000 / header.sampleRate;
    var stamp = pts + frameIndex * frameDuration;
    var sample = {
      unit: data.subarray(offset, offset + header.frameLength),
      pts: stamp,
      dts: stamp
    };
    track.config = [];
    track.channelCount = header.channelCount;
    track.samplerate = header.sampleRate;
    track.samples.push(sample);
    return {
      sample: sample,
      length: header.frameLength,
      missing: 0
    };
  }
}
function parseHeader(data, offset) {
  var mpegVersion = data[offset + 1] >> 3 & 3;
  var mpegLayer = data[offset + 1] >> 1 & 3;
  var bitRateIndex = data[offset + 2] >> 4 & 15;
  var sampleRateIndex = data[offset + 2] >> 2 & 3;

  if (mpegVersion !== 1 && bitRateIndex !== 0 && bitRateIndex !== 15 && sampleRateIndex !== 3) {
    var paddingBit = data[offset + 2] >> 1 & 1;
    var channelMode = data[offset + 3] >> 6;
    var columnInBitrates = mpegVersion === 3 ? 3 - mpegLayer : mpegLayer === 3 ? 3 : 4;
    var bitRate = BitratesMap[columnInBitrates * 14 + bitRateIndex - 1] * 1000;
    var columnInSampleRates = mpegVersion === 3 ? 0 : mpegVersion === 2 ? 1 : 2;
    var sampleRate = SamplingRateMap[columnInSampleRates * 3 + sampleRateIndex];
    var channelCount = channelMode === 3 ? 1 : 2; // If bits of channel mode are `11` then it is a single channel (Mono)

    var sampleCoefficient = SamplesCoefficients[mpegVersion][mpegLayer];
    var bytesInSlot = BytesInSlot[mpegLayer];
    var samplesPerFrame = sampleCoefficient * 8 * bytesInSlot;
    var frameLength = Math.floor(sampleCoefficient * bitRate / sampleRate + paddingBit) * bytesInSlot;

    if (chromeVersion === null) {
      var userAgent = navigator.userAgent || '';
      var result = userAgent.match(/Chrome\/(\d+)/i);
      chromeVersion = result ? parseInt(result[1]) : 0;
    }

    var needChromeFix = !!chromeVersion && chromeVersion <= 87;

    if (needChromeFix && mpegLayer === 2 && bitRate >= 224000 && channelMode === 0) {
      // Work around bug in Chromium by setting channelMode to dual-channel (01) instead of stereo (00)
      data[offset + 3] = data[offset + 3] | 0x80;
    }

    return {
      sampleRate: sampleRate,
      channelCount: channelCount,
      frameLength: frameLength,
      samplesPerFrame: samplesPerFrame
    };
  }
}
function isHeaderPattern(data, offset) {
  return data[offset] === 0xff && (data[offset + 1] & 0xe0) === 0xe0 && (data[offset + 1] & 0x06) !== 0x00;
}
function isHeader(data, offset) {
  // Look for MPEG header | 1111 1111 | 111X XYZX | where X can be either 0 or 1 and Y or Z should be 1
  // Layer bits (position 14 and 15) in header should be always different from 0 (Layer I or Layer II or Layer III)
  // More info http://www.mp3-tech.org/programmer/frame_header.html
  return offset + 1 < data.length && isHeaderPattern(data, offset);
}
function canParse(data, offset) {
  var headerSize = 4;
  return isHeaderPattern(data, offset) && headerSize <= data.length - offset;
}
function probe(data, offset) {
  // same as isHeader but we also check that MPEG frame follows last MPEG frame
  // or end of data is reached
  if (offset + 1 < data.length && isHeaderPattern(data, offset)) {
    // MPEG header Length
    var headerLength = 4; // MPEG frame Length

    var header = parseHeader(data, offset);
    var frameLength = headerLength;

    if (header !== null && header !== void 0 && header.frameLength) {
      frameLength = header.frameLength;
    }

    var newOffset = offset + frameLength;
    return newOffset === data.length || isHeader(data, newOffset);
  }

  return false;
}

/***/ }),

/***/ "./src/demux/sample-aes.ts":
/*!*********************************!*\
  !*** ./src/demux/sample-aes.ts ***!
  \*********************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony import */ var _crypt_decrypter__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../crypt/decrypter */ "./src/crypt/decrypter.ts");
/* harmony import */ var _tsdemuxer__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./tsdemuxer */ "./src/demux/tsdemuxer.ts");
/**
 * SAMPLE-AES decrypter
 */



var SampleAesDecrypter = /*#__PURE__*/function () {
  function SampleAesDecrypter(observer, config, keyData) {
    this.keyData = void 0;
    this.decrypter = void 0;
    this.keyData = keyData;
    this.decrypter = new _crypt_decrypter__WEBPACK_IMPORTED_MODULE_0__["default"](observer, config, {
      removePKCS7Padding: false
    });
  }

  var _proto = SampleAesDecrypter.prototype;

  _proto.decryptBuffer = function decryptBuffer(encryptedData, callback) {
    this.decrypter.decrypt(encryptedData, this.keyData.key.buffer, this.keyData.iv.buffer, callback);
  } // AAC - encrypt all full 16 bytes blocks starting from offset 16
  ;

  _proto.decryptAacSample = function decryptAacSample(samples, sampleIndex, callback, sync) {
    var curUnit = samples[sampleIndex].unit;
    var encryptedData = curUnit.subarray(16, curUnit.length - curUnit.length % 16);
    var encryptedBuffer = encryptedData.buffer.slice(encryptedData.byteOffset, encryptedData.byteOffset + encryptedData.length);
    var localthis = this;
    this.decryptBuffer(encryptedBuffer, function (decryptedBuffer) {
      var decryptedData = new Uint8Array(decryptedBuffer);
      curUnit.set(decryptedData, 16);

      if (!sync) {
        localthis.decryptAacSamples(samples, sampleIndex + 1, callback);
      }
    });
  };

  _proto.decryptAacSamples = function decryptAacSamples(samples, sampleIndex, callback) {
    for (;; sampleIndex++) {
      if (sampleIndex >= samples.length) {
        callback();
        return;
      }

      if (samples[sampleIndex].unit.length < 32) {
        continue;
      }

      var sync = this.decrypter.isSync();
      this.decryptAacSample(samples, sampleIndex, callback, sync);

      if (!sync) {
        return;
      }
    }
  } // AVC - encrypt one 16 bytes block out of ten, starting from offset 32
  ;

  _proto.getAvcEncryptedData = function getAvcEncryptedData(decodedData) {
    var encryptedDataLen = Math.floor((decodedData.length - 48) / 160) * 16 + 16;
    var encryptedData = new Int8Array(encryptedDataLen);
    var outputPos = 0;

    for (var inputPos = 32; inputPos <= decodedData.length - 16; inputPos += 160, outputPos += 16) {
      encryptedData.set(decodedData.subarray(inputPos, inputPos + 16), outputPos);
    }

    return encryptedData;
  };

  _proto.getAvcDecryptedUnit = function getAvcDecryptedUnit(decodedData, decryptedData) {
    var uint8DecryptedData = new Uint8Array(decryptedData);
    var inputPos = 0;

    for (var outputPos = 32; outputPos <= decodedData.length - 16; outputPos += 160, inputPos += 16) {
      decodedData.set(uint8DecryptedData.subarray(inputPos, inputPos + 16), outputPos);
    }

    return decodedData;
  };

  _proto.decryptAvcSample = function decryptAvcSample(samples, sampleIndex, unitIndex, callback, curUnit, sync) {
    var decodedData = Object(_tsdemuxer__WEBPACK_IMPORTED_MODULE_1__["discardEPB"])(curUnit.data);
    var encryptedData = this.getAvcEncryptedData(decodedData);
    var localthis = this;
    this.decryptBuffer(encryptedData.buffer, function (decryptedBuffer) {
      curUnit.data = localthis.getAvcDecryptedUnit(decodedData, decryptedBuffer);

      if (!sync) {
        localthis.decryptAvcSamples(samples, sampleIndex, unitIndex + 1, callback);
      }
    });
  };

  _proto.decryptAvcSamples = function decryptAvcSamples(samples, sampleIndex, unitIndex, callback) {
    if (samples instanceof Uint8Array) {
      throw new Error('Cannot decrypt samples of type Uint8Array');
    }

    for (;; sampleIndex++, unitIndex = 0) {
      if (sampleIndex >= samples.length) {
        callback();
        return;
      }

      var curUnits = samples[sampleIndex].units;

      for (;; unitIndex++) {
        if (unitIndex >= curUnits.length) {
          break;
        }

        var curUnit = curUnits[unitIndex];

        if (curUnit.data.length <= 48 || curUnit.type !== 1 && curUnit.type !== 5) {
          continue;
        }

        var sync = this.decrypter.isSync();
        this.decryptAvcSample(samples, sampleIndex, unitIndex, callback, curUnit, sync);

        if (!sync) {
          return;
        }
      }
    }
  };

  return SampleAesDecrypter;
}();

/* harmony default export */ __webpack_exports__["default"] = (SampleAesDecrypter);

/***/ }),

/***/ "./src/demux/transmuxer-interface.ts":
/*!*******************************************!*\
  !*** ./src/demux/transmuxer-interface.ts ***!
  \*******************************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "default", function() { return TransmuxerInterface; });
/* harmony import */ var webworkify_webpack__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! webworkify-webpack */ "./node_modules/webworkify-webpack/index.js");
/* harmony import */ var webworkify_webpack__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(webworkify_webpack__WEBPACK_IMPORTED_MODULE_0__);
/* harmony import */ var _events__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../events */ "./src/events.ts");
/* harmony import */ var _demux_transmuxer__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../demux/transmuxer */ "./src/demux/transmuxer.ts");
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../utils/logger */ "./src/utils/logger.ts");
/* harmony import */ var _errors__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../errors */ "./src/errors.ts");
/* harmony import */ var _utils_mediasource_helper__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ../utils/mediasource-helper */ "./src/utils/mediasource-helper.ts");
/* harmony import */ var eventemitter3__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! eventemitter3 */ "./node_modules/eventemitter3/index.js");
/* harmony import */ var eventemitter3__WEBPACK_IMPORTED_MODULE_6___default = /*#__PURE__*/__webpack_require__.n(eventemitter3__WEBPACK_IMPORTED_MODULE_6__);







var MediaSource = Object(_utils_mediasource_helper__WEBPACK_IMPORTED_MODULE_5__["getMediaSource"])() || {
  isTypeSupported: function isTypeSupported() {
    return false;
  }
};

var TransmuxerInterface = /*#__PURE__*/function () {
  function TransmuxerInterface(hls, id, onTransmuxComplete, onFlush) {
    var _this = this;

    this.hls = void 0;
    this.id = void 0;
    this.observer = void 0;
    this.frag = null;
    this.part = null;
    this.worker = void 0;
    this.onwmsg = void 0;
    this.transmuxer = null;
    this.onTransmuxComplete = void 0;
    this.onFlush = void 0;
    this.hls = hls;
    this.id = id;
    this.onTransmuxComplete = onTransmuxComplete;
    this.onFlush = onFlush;
    var config = hls.config;

    var forwardMessage = function forwardMessage(ev, data) {
      data = data || {};
      data.frag = _this.frag;
      data.id = _this.id;
      hls.trigger(ev, data);
    }; // forward events to main thread


    this.observer = new eventemitter3__WEBPACK_IMPORTED_MODULE_6__["EventEmitter"]();
    this.observer.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].FRAG_DECRYPTED, forwardMessage);
    this.observer.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].ERROR, forwardMessage);
    var typeSupported = {
      mp4: MediaSource.isTypeSupported('video/mp4'),
      mpeg: MediaSource.isTypeSupported('audio/mpeg'),
      mp3: MediaSource.isTypeSupported('audio/mp4; codecs="mp3"')
    }; // navigator.vendor is not always available in Web Worker
    // refer to https://developer.mozilla.org/en-US/docs/Web/API/WorkerGlobalScope/navigator

    var vendor = navigator.vendor;

    if (config.enableWorker && typeof Worker !== 'undefined') {
      _utils_logger__WEBPACK_IMPORTED_MODULE_3__["logger"].log('demuxing in webworker');
      var worker;

      try {
        worker = this.worker = webworkify_webpack__WEBPACK_IMPORTED_MODULE_0__(/*require.resolve*/(/*! ../demux/transmuxer-worker.ts */ "./src/demux/transmuxer-worker.ts"));
        this.onwmsg = this.onWorkerMessage.bind(this);
        worker.addEventListener('message', this.onwmsg);

        worker.onerror = function (event) {
          hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].ERROR, {
            type: _errors__WEBPACK_IMPORTED_MODULE_4__["ErrorTypes"].OTHER_ERROR,
            details: _errors__WEBPACK_IMPORTED_MODULE_4__["ErrorDetails"].INTERNAL_EXCEPTION,
            fatal: true,
            event: 'demuxerWorker',
            error: new Error(event.message + "  (" + event.filename + ":" + event.lineno + ")")
          });
        };

        worker.postMessage({
          cmd: 'init',
          typeSupported: typeSupported,
          vendor: vendor,
          id: id,
          config: JSON.stringify(config)
        });
      } catch (err) {
        _utils_logger__WEBPACK_IMPORTED_MODULE_3__["logger"].warn('Error in worker:', err);
        _utils_logger__WEBPACK_IMPORTED_MODULE_3__["logger"].error('Error while initializing DemuxerWorker, fallback to inline');

        if (worker) {
          // revoke the Object URL that was used to create transmuxer worker, so as not to leak it
          self.URL.revokeObjectURL(worker.objectURL);
        }

        this.transmuxer = new _demux_transmuxer__WEBPACK_IMPORTED_MODULE_2__["default"](this.observer, typeSupported, config, vendor, id);
        this.worker = null;
      }
    } else {
      this.transmuxer = new _demux_transmuxer__WEBPACK_IMPORTED_MODULE_2__["default"](this.observer, typeSupported, config, vendor, id);
    }
  }

  var _proto = TransmuxerInterface.prototype;

  _proto.destroy = function destroy() {
    var w = this.worker;

    if (w) {
      w.removeEventListener('message', this.onwmsg);
      w.terminate();
      this.worker = null;
    } else {
      var transmuxer = this.transmuxer;

      if (transmuxer) {
        transmuxer.destroy();
        this.transmuxer = null;
      }
    }

    var observer = this.observer;

    if (observer) {
      observer.removeAllListeners();
    } // @ts-ignore


    this.observer = null;
  };

  _proto.push = function push(data, initSegmentData, audioCodec, videoCodec, frag, part, duration, accurateTimeOffset, chunkMeta, defaultInitPTS) {
    var _this2 = this;

    chunkMeta.transmuxing.start = self.performance.now();
    var transmuxer = this.transmuxer,
        worker = this.worker;
    var timeOffset = part ? part.start : frag.start;
    var decryptdata = frag.decryptdata;
    var lastFrag = this.frag;
    var discontinuity = !(lastFrag && frag.cc === lastFrag.cc);
    var trackSwitch = !(lastFrag && chunkMeta.level === lastFrag.level);
    var snDiff = lastFrag ? chunkMeta.sn - lastFrag.sn : -1;
    var partDiff = this.part ? chunkMeta.part - this.part.index : 1;
    var contiguous = !trackSwitch && (snDiff === 1 || snDiff === 0 && partDiff === 1);
    var now = self.performance.now();

    if (trackSwitch || snDiff || frag.stats.parsing.start === 0) {
      frag.stats.parsing.start = now;
    }

    if (part && (partDiff || !contiguous)) {
      part.stats.parsing.start = now;
    }

    var state = new _demux_transmuxer__WEBPACK_IMPORTED_MODULE_2__["TransmuxState"](discontinuity, contiguous, accurateTimeOffset, trackSwitch, timeOffset);

    if (!contiguous || discontinuity) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_3__["logger"].log("[transmuxer-interface, " + frag.type + "]: Starting new transmux session for sn: " + chunkMeta.sn + " p: " + chunkMeta.part + " level: " + chunkMeta.level + " id: " + chunkMeta.id + "\n        discontinuity: " + discontinuity + "\n        trackSwitch: " + trackSwitch + "\n        contiguous: " + contiguous + "\n        accurateTimeOffset: " + accurateTimeOffset + "\n        timeOffset: " + timeOffset);
      var config = new _demux_transmuxer__WEBPACK_IMPORTED_MODULE_2__["TransmuxConfig"](audioCodec, videoCodec, initSegmentData, duration, defaultInitPTS);
      this.configureTransmuxer(config);
    }

    this.frag = frag;
    this.part = part; // Frags with sn of 'initSegment' are not transmuxed

    if (worker) {
      // post fragment payload as transferable objects for ArrayBuffer (no copy)
      worker.postMessage({
        cmd: 'demux',
        data: data,
        decryptdata: decryptdata,
        chunkMeta: chunkMeta,
        state: state
      }, data instanceof ArrayBuffer ? [data] : []);
    } else if (transmuxer) {
      var _transmuxResult = transmuxer.push(data, decryptdata, chunkMeta, state);

      if (Object(_demux_transmuxer__WEBPACK_IMPORTED_MODULE_2__["isPromise"])(_transmuxResult)) {
        _transmuxResult.then(function (data) {
          _this2.handleTransmuxComplete(data);
        });
      } else {
        this.handleTransmuxComplete(_transmuxResult);
      }
    }
  };

  _proto.flush = function flush(chunkMeta) {
    var _this3 = this;

    chunkMeta.transmuxing.start = self.performance.now();
    var transmuxer = this.transmuxer,
        worker = this.worker;

    if (worker) {
      worker.postMessage({
        cmd: 'flush',
        chunkMeta: chunkMeta
      });
    } else if (transmuxer) {
      var _transmuxResult2 = transmuxer.flush(chunkMeta);

      if (Object(_demux_transmuxer__WEBPACK_IMPORTED_MODULE_2__["isPromise"])(_transmuxResult2)) {
        _transmuxResult2.then(function (data) {
          _this3.handleFlushResult(data, chunkMeta);
        });
      } else {
        this.handleFlushResult(_transmuxResult2, chunkMeta);
      }
    }
  };

  _proto.handleFlushResult = function handleFlushResult(results, chunkMeta) {
    var _this4 = this;

    results.forEach(function (result) {
      _this4.handleTransmuxComplete(result);
    });
    this.onFlush(chunkMeta);
  };

  _proto.onWorkerMessage = function onWorkerMessage(ev) {
    var data = ev.data;
    var hls = this.hls;

    switch (data.event) {
      case 'init':
        {
          // revoke the Object URL that was used to create transmuxer worker, so as not to leak it
          self.URL.revokeObjectURL(this.worker.objectURL);
          break;
        }

      case 'transmuxComplete':
        {
          this.handleTransmuxComplete(data.data);
          break;
        }

      case 'flush':
        {
          this.onFlush(data.data);
          break;
        }

      /* falls through */

      default:
        {
          data.data = data.data || {};
          data.data.frag = this.frag;
          data.data.id = this.id;
          hls.trigger(data.event, data.data);
          break;
        }
    }
  };

  _proto.configureTransmuxer = function configureTransmuxer(config) {
    var worker = this.worker,
        transmuxer = this.transmuxer;

    if (worker) {
      worker.postMessage({
        cmd: 'configure',
        config: config
      });
    } else if (transmuxer) {
      transmuxer.configure(config);
    }
  };

  _proto.handleTransmuxComplete = function handleTransmuxComplete(result) {
    result.chunkMeta.transmuxing.end = self.performance.now();
    this.onTransmuxComplete(result);
  };

  return TransmuxerInterface;
}();



/***/ }),

/***/ "./src/demux/transmuxer-worker.ts":
/*!****************************************!*\
  !*** ./src/demux/transmuxer-worker.ts ***!
  \****************************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "default", function() { return TransmuxerWorker; });
/* harmony import */ var _demux_transmuxer__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../demux/transmuxer */ "./src/demux/transmuxer.ts");
/* harmony import */ var _events__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../events */ "./src/events.ts");
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../utils/logger */ "./src/utils/logger.ts");
/* harmony import */ var eventemitter3__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! eventemitter3 */ "./node_modules/eventemitter3/index.js");
/* harmony import */ var eventemitter3__WEBPACK_IMPORTED_MODULE_3___default = /*#__PURE__*/__webpack_require__.n(eventemitter3__WEBPACK_IMPORTED_MODULE_3__);




function TransmuxerWorker(self) {
  var observer = new eventemitter3__WEBPACK_IMPORTED_MODULE_3__["EventEmitter"]();

  var forwardMessage = function forwardMessage(ev, data) {
    self.postMessage({
      event: ev,
      data: data
    });
  }; // forward events to main thread


  observer.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].FRAG_DECRYPTED, forwardMessage);
  observer.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].ERROR, forwardMessage);
  self.addEventListener('message', function (ev) {
    var data = ev.data;

    switch (data.cmd) {
      case 'init':
        {
          var config = JSON.parse(data.config);
          self.transmuxer = new _demux_transmuxer__WEBPACK_IMPORTED_MODULE_0__["default"](observer, data.typeSupported, config, data.vendor, data.id);
          Object(_utils_logger__WEBPACK_IMPORTED_MODULE_2__["enableLogs"])(config.debug);
          forwardMessage('init', null);
          break;
        }

      case 'configure':
        {
          self.transmuxer.configure(data.config);
          break;
        }

      case 'demux':
        {
          var transmuxResult = self.transmuxer.push(data.data, data.decryptdata, data.chunkMeta, data.state);

          if (Object(_demux_transmuxer__WEBPACK_IMPORTED_MODULE_0__["isPromise"])(transmuxResult)) {
            transmuxResult.then(function (data) {
              emitTransmuxComplete(self, data);
            });
          } else {
            emitTransmuxComplete(self, transmuxResult);
          }

          break;
        }

      case 'flush':
        {
          var id = data.chunkMeta;

          var _transmuxResult = self.transmuxer.flush(id);

          if (Object(_demux_transmuxer__WEBPACK_IMPORTED_MODULE_0__["isPromise"])(_transmuxResult)) {
            _transmuxResult.then(function (results) {
              handleFlushResult(self, results, id);
            });
          } else {
            handleFlushResult(self, _transmuxResult, id);
          }

          break;
        }

      default:
        break;
    }
  });
}

function emitTransmuxComplete(self, transmuxResult) {
  if (isEmptyResult(transmuxResult.remuxResult)) {
    return;
  }

  var transferable = [];
  var _transmuxResult$remux = transmuxResult.remuxResult,
      audio = _transmuxResult$remux.audio,
      video = _transmuxResult$remux.video;

  if (audio) {
    addToTransferable(transferable, audio);
  }

  if (video) {
    addToTransferable(transferable, video);
  }

  self.postMessage({
    event: 'transmuxComplete',
    data: transmuxResult
  }, transferable);
} // Converts data to a transferable object https://developers.google.com/web/updates/2011/12/Transferable-Objects-Lightning-Fast)
// in order to minimize message passing overhead


function addToTransferable(transferable, track) {
  if (track.data1) {
    transferable.push(track.data1.buffer);
  }

  if (track.data2) {
    transferable.push(track.data2.buffer);
  }
}

function handleFlushResult(self, results, chunkMeta) {
  results.forEach(function (result) {
    emitTransmuxComplete(self, result);
  });
  self.postMessage({
    event: 'flush',
    data: chunkMeta
  });
}

function isEmptyResult(remuxResult) {
  return !remuxResult.audio && !remuxResult.video && !remuxResult.text && !remuxResult.id3 && !remuxResult.initSegment;
}

/***/ }),

/***/ "./src/demux/transmuxer.ts":
/*!*********************************!*\
  !*** ./src/demux/transmuxer.ts ***!
  \*********************************/
/*! exports provided: default, isPromise, TransmuxConfig, TransmuxState */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "default", function() { return Transmuxer; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "isPromise", function() { return isPromise; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "TransmuxConfig", function() { return TransmuxConfig; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "TransmuxState", function() { return TransmuxState; });
/* harmony import */ var _events__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../events */ "./src/events.ts");
/* harmony import */ var _errors__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../errors */ "./src/errors.ts");
/* harmony import */ var _crypt_decrypter__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../crypt/decrypter */ "./src/crypt/decrypter.ts");
/* harmony import */ var _demux_aacdemuxer__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../demux/aacdemuxer */ "./src/demux/aacdemuxer.ts");
/* harmony import */ var _demux_mp4demuxer__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../demux/mp4demuxer */ "./src/demux/mp4demuxer.ts");
/* harmony import */ var _demux_tsdemuxer__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ../demux/tsdemuxer */ "./src/demux/tsdemuxer.ts");
/* harmony import */ var _demux_mp3demuxer__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ../demux/mp3demuxer */ "./src/demux/mp3demuxer.ts");
/* harmony import */ var _remux_mp4_remuxer__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ../remux/mp4-remuxer */ "./src/remux/mp4-remuxer.ts");
/* harmony import */ var _remux_passthrough_remuxer__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! ../remux/passthrough-remuxer */ "./src/remux/passthrough-remuxer.ts");
/* harmony import */ var _chunk_cache__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(/*! ./chunk-cache */ "./src/demux/chunk-cache.ts");
/* harmony import */ var _utils_mp4_tools__WEBPACK_IMPORTED_MODULE_10__ = __webpack_require__(/*! ../utils/mp4-tools */ "./src/utils/mp4-tools.ts");
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_11__ = __webpack_require__(/*! ../utils/logger */ "./src/utils/logger.ts");












var now; // performance.now() not available on WebWorker, at least on Safari Desktop

try {
  now = self.performance.now.bind(self.performance);
} catch (err) {
  _utils_logger__WEBPACK_IMPORTED_MODULE_11__["logger"].debug('Unable to use Performance API on this environment');
  now = self.Date.now;
}

var muxConfig = [{
  demux: _demux_tsdemuxer__WEBPACK_IMPORTED_MODULE_5__["default"],
  remux: _remux_mp4_remuxer__WEBPACK_IMPORTED_MODULE_7__["default"]
}, {
  demux: _demux_mp4demuxer__WEBPACK_IMPORTED_MODULE_4__["default"],
  remux: _remux_passthrough_remuxer__WEBPACK_IMPORTED_MODULE_8__["default"]
}, {
  demux: _demux_aacdemuxer__WEBPACK_IMPORTED_MODULE_3__["default"],
  remux: _remux_mp4_remuxer__WEBPACK_IMPORTED_MODULE_7__["default"]
}, {
  demux: _demux_mp3demuxer__WEBPACK_IMPORTED_MODULE_6__["default"],
  remux: _remux_mp4_remuxer__WEBPACK_IMPORTED_MODULE_7__["default"]
}];
var minProbeByteLength = 1024;
muxConfig.forEach(function (_ref) {
  var demux = _ref.demux;
  minProbeByteLength = Math.max(minProbeByteLength, demux.minProbeByteLength);
});

var Transmuxer = /*#__PURE__*/function () {
  function Transmuxer(observer, typeSupported, config, vendor, id) {
    this.observer = void 0;
    this.typeSupported = void 0;
    this.config = void 0;
    this.vendor = void 0;
    this.id = void 0;
    this.demuxer = void 0;
    this.remuxer = void 0;
    this.decrypter = void 0;
    this.probe = void 0;
    this.decryptionPromise = null;
    this.transmuxConfig = void 0;
    this.currentTransmuxState = void 0;
    this.cache = new _chunk_cache__WEBPACK_IMPORTED_MODULE_9__["default"]();
    this.observer = observer;
    this.typeSupported = typeSupported;
    this.config = config;
    this.vendor = vendor;
    this.id = id;
  }

  var _proto = Transmuxer.prototype;

  _proto.configure = function configure(transmuxConfig) {
    this.transmuxConfig = transmuxConfig;

    if (this.decrypter) {
      this.decrypter.reset();
    }
  };

  _proto.push = function push(data, decryptdata, chunkMeta, state) {
    var _this = this;

    var stats = chunkMeta.transmuxing;
    stats.executeStart = now();
    var uintData = new Uint8Array(data);
    var cache = this.cache,
        config = this.config,
        currentTransmuxState = this.currentTransmuxState,
        transmuxConfig = this.transmuxConfig;

    if (state) {
      this.currentTransmuxState = state;
    }

    var keyData = getEncryptionType(uintData, decryptdata);

    if (keyData && keyData.method === 'AES-128') {
      var decrypter = this.getDecrypter(); // Software decryption is synchronous; webCrypto is not

      if (config.enableSoftwareAES) {
        // Software decryption is progressive. Progressive decryption may not return a result on each call. Any cached
        // data is handled in the flush() call
        var decryptedData = decrypter.softwareDecrypt(uintData, keyData.key.buffer, keyData.iv.buffer);

        if (!decryptedData) {
          stats.executeEnd = now();
          return emptyResult(chunkMeta);
        }

        uintData = new Uint8Array(decryptedData);
      } else {
        this.decryptionPromise = decrypter.webCryptoDecrypt(uintData, keyData.key.buffer, keyData.iv.buffer).then(function (decryptedData) {
          // Calling push here is important; if flush() is called while this is still resolving, this ensures that
          // the decrypted data has been transmuxed
          var result = _this.push(decryptedData, null, chunkMeta);

          _this.decryptionPromise = null;
          return result;
        });
        return this.decryptionPromise;
      }
    }

    var _ref2 = state || currentTransmuxState,
        contiguous = _ref2.contiguous,
        discontinuity = _ref2.discontinuity,
        trackSwitch = _ref2.trackSwitch,
        accurateTimeOffset = _ref2.accurateTimeOffset,
        timeOffset = _ref2.timeOffset;

    var audioCodec = transmuxConfig.audioCodec,
        videoCodec = transmuxConfig.videoCodec,
        defaultInitPts = transmuxConfig.defaultInitPts,
        duration = transmuxConfig.duration,
        initSegmentData = transmuxConfig.initSegmentData; // Reset muxers before probing to ensure that their state is clean, even if flushing occurs before a successful probe

    if (discontinuity || trackSwitch) {
      this.resetInitSegment(initSegmentData, audioCodec, videoCodec, duration);
    }

    if (discontinuity) {
      this.resetInitialTimestamp(defaultInitPts);
    }

    if (!contiguous) {
      this.resetContiguity();
    }

    if (this.needsProbing(uintData, discontinuity, trackSwitch)) {
      if (cache.dataLength) {
        var cachedData = cache.flush();
        uintData = Object(_utils_mp4_tools__WEBPACK_IMPORTED_MODULE_10__["appendUint8Array"])(cachedData, uintData);
      }

      this.configureTransmuxer(uintData, transmuxConfig);
    }

    var result = this.transmux(uintData, keyData, timeOffset, accurateTimeOffset, chunkMeta);
    var currentState = this.currentTransmuxState;
    currentState.contiguous = true;
    currentState.discontinuity = false;
    currentState.trackSwitch = false;
    stats.executeEnd = now();
    return result;
  } // Due to data caching, flush calls can produce more than one TransmuxerResult (hence the Array type)
  ;

  _proto.flush = function flush(chunkMeta) {
    var _this2 = this;

    var stats = chunkMeta.transmuxing;
    stats.executeStart = now();
    var decrypter = this.decrypter,
        cache = this.cache,
        currentTransmuxState = this.currentTransmuxState,
        decryptionPromise = this.decryptionPromise;

    if (decryptionPromise) {
      // Upon resolution, the decryption promise calls push() and returns its TransmuxerResult up the stack. Therefore
      // only flushing is required for async decryption
      return decryptionPromise.then(function () {
        return _this2.flush(chunkMeta);
      });
    }

    var transmuxResults = [];
    var timeOffset = currentTransmuxState.timeOffset;

    if (decrypter) {
      // The decrypter may have data cached, which needs to be demuxed. In this case we'll have two TransmuxResults
      // This happens in the case that we receive only 1 push call for a segment (either for non-progressive downloads,
      // or for progressive downloads with small segments)
      var decryptedData = decrypter.flush();

      if (decryptedData) {
        // Push always returns a TransmuxerResult if decryptdata is null
        transmuxResults.push(this.push(decryptedData, null, chunkMeta));
      }
    }

    var bytesSeen = cache.dataLength;
    cache.reset();
    var demuxer = this.demuxer,
        remuxer = this.remuxer;

    if (!demuxer || !remuxer) {
      // If probing failed, and each demuxer saw enough bytes to be able to probe, then Hls.js has been given content its not able to handle
      if (bytesSeen >= minProbeByteLength) {
        this.observer.emit(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].ERROR, _events__WEBPACK_IMPORTED_MODULE_0__["Events"].ERROR, {
          type: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorTypes"].MEDIA_ERROR,
          details: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorDetails"].FRAG_PARSING_ERROR,
          fatal: true,
          reason: 'no demux matching with content found'
        });
      }

      stats.executeEnd = now();
      return [emptyResult(chunkMeta)];
    }

    var demuxResultOrPromise = demuxer.flush(timeOffset);

    if (isPromise(demuxResultOrPromise)) {
      // Decrypt final SAMPLE-AES samples
      return demuxResultOrPromise.then(function (demuxResult) {
        _this2.flushRemux(transmuxResults, demuxResult, chunkMeta);

        return transmuxResults;
      });
    }

    this.flushRemux(transmuxResults, demuxResultOrPromise, chunkMeta);
    return transmuxResults;
  };

  _proto.flushRemux = function flushRemux(transmuxResults, demuxResult, chunkMeta) {
    var audioTrack = demuxResult.audioTrack,
        avcTrack = demuxResult.avcTrack,
        id3Track = demuxResult.id3Track,
        textTrack = demuxResult.textTrack;
    var _this$currentTransmux = this.currentTransmuxState,
        accurateTimeOffset = _this$currentTransmux.accurateTimeOffset,
        timeOffset = _this$currentTransmux.timeOffset;
    _utils_logger__WEBPACK_IMPORTED_MODULE_11__["logger"].log("[transmuxer.ts]: Flushed fragment " + chunkMeta.sn + (chunkMeta.part > -1 ? ' p: ' + chunkMeta.part : '') + " of level " + chunkMeta.level);
    var remuxResult = this.remuxer.remux(audioTrack, avcTrack, id3Track, textTrack, timeOffset, accurateTimeOffset, true, this.id);
    transmuxResults.push({
      remuxResult: remuxResult,
      chunkMeta: chunkMeta
    });
    chunkMeta.transmuxing.executeEnd = now();
  };

  _proto.resetInitialTimestamp = function resetInitialTimestamp(defaultInitPts) {
    var demuxer = this.demuxer,
        remuxer = this.remuxer;

    if (!demuxer || !remuxer) {
      return;
    }

    demuxer.resetTimeStamp(defaultInitPts);
    remuxer.resetTimeStamp(defaultInitPts);
  };

  _proto.resetContiguity = function resetContiguity() {
    var demuxer = this.demuxer,
        remuxer = this.remuxer;

    if (!demuxer || !remuxer) {
      return;
    }

    demuxer.resetContiguity();
    remuxer.resetNextTimestamp();
  };

  _proto.resetInitSegment = function resetInitSegment(initSegmentData, audioCodec, videoCodec, duration) {
    var demuxer = this.demuxer,
        remuxer = this.remuxer;

    if (!demuxer || !remuxer) {
      return;
    }

    demuxer.resetInitSegment(audioCodec, videoCodec, duration);
    remuxer.resetInitSegment(initSegmentData, audioCodec, videoCodec);
  };

  _proto.destroy = function destroy() {
    if (this.demuxer) {
      this.demuxer.destroy();
      this.demuxer = undefined;
    }

    if (this.remuxer) {
      this.remuxer.destroy();
      this.remuxer = undefined;
    }
  };

  _proto.transmux = function transmux(data, keyData, timeOffset, accurateTimeOffset, chunkMeta) {
    var result;

    if (keyData && keyData.method === 'SAMPLE-AES') {
      result = this.transmuxSampleAes(data, keyData, timeOffset, accurateTimeOffset, chunkMeta);
    } else {
      result = this.transmuxUnencrypted(data, timeOffset, accurateTimeOffset, chunkMeta);
    }

    return result;
  };

  _proto.transmuxUnencrypted = function transmuxUnencrypted(data, timeOffset, accurateTimeOffset, chunkMeta) {
    var _demux = this.demuxer.demux(data, timeOffset, false, !this.config.progressive),
        audioTrack = _demux.audioTrack,
        avcTrack = _demux.avcTrack,
        id3Track = _demux.id3Track,
        textTrack = _demux.textTrack;

    var remuxResult = this.remuxer.remux(audioTrack, avcTrack, id3Track, textTrack, timeOffset, accurateTimeOffset, false, this.id);
    return {
      remuxResult: remuxResult,
      chunkMeta: chunkMeta
    };
  };

  _proto.transmuxSampleAes = function transmuxSampleAes(data, decryptData, timeOffset, accurateTimeOffset, chunkMeta) {
    var _this3 = this;

    return this.demuxer.demuxSampleAes(data, decryptData, timeOffset).then(function (demuxResult) {
      var remuxResult = _this3.remuxer.remux(demuxResult.audioTrack, demuxResult.avcTrack, demuxResult.id3Track, demuxResult.textTrack, timeOffset, accurateTimeOffset, false, _this3.id);

      return {
        remuxResult: remuxResult,
        chunkMeta: chunkMeta
      };
    });
  };

  _proto.configureTransmuxer = function configureTransmuxer(data, transmuxConfig) {
    var config = this.config,
        observer = this.observer,
        typeSupported = this.typeSupported,
        vendor = this.vendor;
    var audioCodec = transmuxConfig.audioCodec,
        defaultInitPts = transmuxConfig.defaultInitPts,
        duration = transmuxConfig.duration,
        initSegmentData = transmuxConfig.initSegmentData,
        videoCodec = transmuxConfig.videoCodec; // probe for content type

    var mux;

    for (var i = 0, len = muxConfig.length; i < len; i++) {
      if (muxConfig[i].demux.probe(data)) {
        mux = muxConfig[i];
        break;
      }
    }

    if (!mux) {
      // If probing previous configs fail, use mp4 passthrough
      _utils_logger__WEBPACK_IMPORTED_MODULE_11__["logger"].warn('Failed to find demuxer by probing frag, treating as mp4 passthrough');
      mux = {
        demux: _demux_mp4demuxer__WEBPACK_IMPORTED_MODULE_4__["default"],
        remux: _remux_passthrough_remuxer__WEBPACK_IMPORTED_MODULE_8__["default"]
      };
    } // so let's check that current remuxer and demuxer are still valid


    var demuxer = this.demuxer;
    var remuxer = this.remuxer;
    var Remuxer = mux.remux;
    var Demuxer = mux.demux;

    if (!remuxer || !(remuxer instanceof Remuxer)) {
      this.remuxer = new Remuxer(observer, config, typeSupported, vendor);
    }

    if (!demuxer || !(demuxer instanceof Demuxer)) {
      this.demuxer = new Demuxer(observer, config, typeSupported);
      this.probe = Demuxer.probe;
    } // Ensure that muxers are always initialized with an initSegment


    this.resetInitSegment(initSegmentData, audioCodec, videoCodec, duration);
    this.resetInitialTimestamp(defaultInitPts);
  };

  _proto.needsProbing = function needsProbing(data, discontinuity, trackSwitch) {
    // in case of continuity change, or track switch
    // we might switch from content type (AAC container to TS container, or TS to fmp4 for example)
    return !this.demuxer || !this.remuxer || discontinuity || trackSwitch;
  };

  _proto.getDecrypter = function getDecrypter() {
    var decrypter = this.decrypter;

    if (!decrypter) {
      decrypter = this.decrypter = new _crypt_decrypter__WEBPACK_IMPORTED_MODULE_2__["default"](this.observer, this.config);
    }

    return decrypter;
  };

  return Transmuxer;
}();



function getEncryptionType(data, decryptData) {
  var encryptionType = null;

  if (data.byteLength > 0 && decryptData != null && decryptData.key != null && decryptData.iv !== null && decryptData.method != null) {
    encryptionType = decryptData;
  }

  return encryptionType;
}

var emptyResult = function emptyResult(chunkMeta) {
  return {
    remuxResult: {},
    chunkMeta: chunkMeta
  };
};

function isPromise(p) {
  return 'then' in p && p.then instanceof Function;
}
var TransmuxConfig = function TransmuxConfig(audioCodec, videoCodec, initSegmentData, duration, defaultInitPts) {
  this.audioCodec = void 0;
  this.videoCodec = void 0;
  this.initSegmentData = void 0;
  this.duration = void 0;
  this.defaultInitPts = void 0;
  this.audioCodec = audioCodec;
  this.videoCodec = videoCodec;
  this.initSegmentData = initSegmentData;
  this.duration = duration;
  this.defaultInitPts = defaultInitPts;
};
var TransmuxState = function TransmuxState(discontinuity, contiguous, accurateTimeOffset, trackSwitch, timeOffset) {
  this.discontinuity = void 0;
  this.contiguous = void 0;
  this.accurateTimeOffset = void 0;
  this.trackSwitch = void 0;
  this.timeOffset = void 0;
  this.discontinuity = discontinuity;
  this.contiguous = contiguous;
  this.accurateTimeOffset = accurateTimeOffset;
  this.trackSwitch = trackSwitch;
  this.timeOffset = timeOffset;
};

/***/ }),

/***/ "./src/demux/tsdemuxer.ts":
/*!********************************!*\
  !*** ./src/demux/tsdemuxer.ts ***!
  \********************************/
/*! exports provided: discardEPB, default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "discardEPB", function() { return discardEPB; });
/* harmony import */ var _adts__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./adts */ "./src/demux/adts.ts");
/* harmony import */ var _mpegaudio__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./mpegaudio */ "./src/demux/mpegaudio.ts");
/* harmony import */ var _exp_golomb__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./exp-golomb */ "./src/demux/exp-golomb.ts");
/* harmony import */ var _id3__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./id3 */ "./src/demux/id3.ts");
/* harmony import */ var _sample_aes__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ./sample-aes */ "./src/demux/sample-aes.ts");
/* harmony import */ var _events__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ../events */ "./src/events.ts");
/* harmony import */ var _utils_mp4_tools__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ../utils/mp4-tools */ "./src/utils/mp4-tools.ts");
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ../utils/logger */ "./src/utils/logger.ts");
/* harmony import */ var _errors__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! ../errors */ "./src/errors.ts");
/**
 * highly optimized TS demuxer:
 * parse PAT, PMT
 * extract PES packet from audio and video PIDs
 * extract AVC/H264 NAL units and AAC/ADTS samples from PES packet
 * trigger the remuxer upon parsing completion
 * it also tries to workaround as best as it can audio codec switch (HE-AAC to AAC and vice versa), without having to restart the MediaSource.
 * it also controls the remuxing process :
 * upon discontinuity or level switch detection, it will also notifies the remuxer so that it can reset its state.
 */









// We are using fixed track IDs for driving the MP4 remuxer
// instead of following the TS PIDs.
// There is no reason not to do this and some browsers/SourceBuffer-demuxers
// may not like if there are TrackID "switches"
// See https://github.com/video-dev/hls.js/issues/1331
// Here we are mapping our internal track types to constant MP4 track IDs
// With MSE currently one can only have one track of each, and we are muxing
// whatever video/audio rendition in them.
var RemuxerTrackIdConfig = {
  video: 1,
  audio: 2,
  id3: 3,
  text: 4
};

var TSDemuxer = /*#__PURE__*/function () {
  function TSDemuxer(observer, config, typeSupported) {
    this.observer = void 0;
    this.config = void 0;
    this.typeSupported = void 0;
    this.sampleAes = null;
    this.pmtParsed = false;
    this.audioCodec = void 0;
    this.videoCodec = void 0;
    this._duration = 0;
    this.aacLastPTS = null;
    this._initPTS = null;
    this._initDTS = null;
    this._pmtId = -1;
    this._avcTrack = void 0;
    this._audioTrack = void 0;
    this._id3Track = void 0;
    this._txtTrack = void 0;
    this.aacOverFlow = null;
    this.avcSample = null;
    this.remainderData = null;
    this.observer = observer;
    this.config = config;
    this.typeSupported = typeSupported;
  }

  TSDemuxer.probe = function probe(data) {
    var syncOffset = TSDemuxer.syncOffset(data);

    if (syncOffset < 0) {
      return false;
    } else {
      if (syncOffset) {
        _utils_logger__WEBPACK_IMPORTED_MODULE_7__["logger"].warn("MPEG2-TS detected but first sync word found @ offset " + syncOffset + ", junk ahead ?");
      }

      return true;
    }
  };

  TSDemuxer.syncOffset = function syncOffset(data) {
    // scan 1000 first bytes
    var scanwindow = Math.min(1000, data.length - 3 * 188);
    var i = 0;

    while (i < scanwindow) {
      // a TS fragment should contain at least 3 TS packets, a PAT, a PMT, and one PID, each starting with 0x47
      if (data[i] === 0x47 && data[i + 188] === 0x47 && data[i + 2 * 188] === 0x47) {
        return i;
      } else {
        i++;
      }
    }

    return -1;
  }
  /**
   * Creates a track model internal to demuxer used to drive remuxing input
   *
   * @param type 'audio' | 'video' | 'id3' | 'text'
   * @param duration
   * @return TSDemuxer's internal track model
   */
  ;

  TSDemuxer.createTrack = function createTrack(type, duration) {
    return {
      container: type === 'video' || type === 'audio' ? 'video/mp2t' : undefined,
      type: type,
      id: RemuxerTrackIdConfig[type],
      pid: -1,
      inputTimeScale: 90000,
      sequenceNumber: 0,
      samples: [],
      dropped: 0,
      duration: type === 'audio' ? duration : undefined
    };
  }
  /**
   * Initializes a new init segment on the demuxer/remuxer interface. Needed for discontinuities/track-switches (or at stream start)
   * Resets all internal track instances of the demuxer.
   */
  ;

  var _proto = TSDemuxer.prototype;

  _proto.resetInitSegment = function resetInitSegment(audioCodec, videoCodec, duration) {
    this.pmtParsed = false;
    this._pmtId = -1;
    this._avcTrack = TSDemuxer.createTrack('video', duration);
    this._audioTrack = TSDemuxer.createTrack('audio', duration);
    this._id3Track = TSDemuxer.createTrack('id3', duration);
    this._txtTrack = TSDemuxer.createTrack('text', duration);
    this._audioTrack.isAAC = true; // flush any partial content

    this.aacOverFlow = null;
    this.aacLastPTS = null;
    this.avcSample = null;
    this.audioCodec = audioCodec;
    this.videoCodec = videoCodec;
    this._duration = duration;
  };

  _proto.resetTimeStamp = function resetTimeStamp() {};

  _proto.resetContiguity = function resetContiguity() {
    var _audioTrack = this._audioTrack,
        _avcTrack = this._avcTrack,
        _id3Track = this._id3Track;

    if (_audioTrack) {
      _audioTrack.pesData = null;
    }

    if (_avcTrack) {
      _avcTrack.pesData = null;
    }

    if (_id3Track) {
      _id3Track.pesData = null;
    }

    this.aacOverFlow = null;
    this.aacLastPTS = null;
  };

  _proto.demux = function demux(data, timeOffset, isSampleAes, flush) {
    if (isSampleAes === void 0) {
      isSampleAes = false;
    }

    if (flush === void 0) {
      flush = false;
    }

    if (!isSampleAes) {
      this.sampleAes = null;
    }

    var pes;
    var avcTrack = this._avcTrack;
    var audioTrack = this._audioTrack;
    var id3Track = this._id3Track;
    var avcId = avcTrack.pid;
    var avcData = avcTrack.pesData;
    var audioId = audioTrack.pid;
    var id3Id = id3Track.pid;
    var audioData = audioTrack.pesData;
    var id3Data = id3Track.pesData;
    var unknownPIDs = false;
    var pmtParsed = this.pmtParsed;
    var pmtId = this._pmtId;
    var len = data.length;

    if (this.remainderData) {
      data = Object(_utils_mp4_tools__WEBPACK_IMPORTED_MODULE_6__["appendUint8Array"])(this.remainderData, data);
      len = data.length;
      this.remainderData = null;
    }

    if (len < 188 && !flush) {
      this.remainderData = data;
      return {
        audioTrack: audioTrack,
        avcTrack: avcTrack,
        id3Track: id3Track,
        textTrack: this._txtTrack
      };
    }

    var syncOffset = Math.max(0, TSDemuxer.syncOffset(data));
    len -= (len + syncOffset) % 188;

    if (len < data.byteLength && !flush) {
      this.remainderData = new Uint8Array(data.buffer, len, data.buffer.byteLength - len);
    } // loop through TS packets


    for (var start = syncOffset; start < len; start += 188) {
      if (data[start] === 0x47) {
        var stt = !!(data[start + 1] & 0x40); // pid is a 13-bit field starting at the last bit of TS[1]

        var pid = ((data[start + 1] & 0x1f) << 8) + data[start + 2];
        var atf = (data[start + 3] & 0x30) >> 4; // if an adaption field is present, its length is specified by the fifth byte of the TS packet header.

        var offset = void 0;

        if (atf > 1) {
          offset = start + 5 + data[start + 4]; // continue if there is only adaptation field

          if (offset === start + 188) {
            continue;
          }
        } else {
          offset = start + 4;
        }

        switch (pid) {
          case avcId:
            if (stt) {
              if (avcData && (pes = parsePES(avcData))) {
                this.parseAVCPES(pes, false);
              }

              avcData = {
                data: [],
                size: 0
              };
            }

            if (avcData) {
              avcData.data.push(data.subarray(offset, start + 188));
              avcData.size += start + 188 - offset;
            }

            break;

          case audioId:
            if (stt) {
              if (audioData && (pes = parsePES(audioData))) {
                if (audioTrack.isAAC) {
                  this.parseAACPES(pes);
                } else {
                  this.parseMPEGPES(pes);
                }
              }

              audioData = {
                data: [],
                size: 0
              };
            }

            if (audioData) {
              audioData.data.push(data.subarray(offset, start + 188));
              audioData.size += start + 188 - offset;
            }

            break;

          case id3Id:
            if (stt) {
              if (id3Data && (pes = parsePES(id3Data))) {
                this.parseID3PES(pes);
              }

              id3Data = {
                data: [],
                size: 0
              };
            }

            if (id3Data) {
              id3Data.data.push(data.subarray(offset, start + 188));
              id3Data.size += start + 188 - offset;
            }

            break;

          case 0:
            if (stt) {
              offset += data[offset] + 1;
            }

            pmtId = this._pmtId = parsePAT(data, offset);
            break;

          case pmtId:
            {
              if (stt) {
                offset += data[offset] + 1;
              }

              var parsedPIDs = parsePMT(data, offset, this.typeSupported.mpeg === true || this.typeSupported.mp3 === true, isSampleAes); // only update track id if track PID found while parsing PMT
              // this is to avoid resetting the PID to -1 in case
              // track PID transiently disappears from the stream
              // this could happen in case of transient missing audio samples for example
              // NOTE this is only the PID of the track as found in TS,
              // but we are not using this for MP4 track IDs.

              avcId = parsedPIDs.avc;

              if (avcId > 0) {
                avcTrack.pid = avcId;
              }

              audioId = parsedPIDs.audio;

              if (audioId > 0) {
                audioTrack.pid = audioId;
                audioTrack.isAAC = parsedPIDs.isAAC;
              }

              id3Id = parsedPIDs.id3;

              if (id3Id > 0) {
                id3Track.pid = id3Id;
              }

              if (unknownPIDs && !pmtParsed) {
                _utils_logger__WEBPACK_IMPORTED_MODULE_7__["logger"].log('reparse from beginning');
                unknownPIDs = false; // we set it to -188, the += 188 in the for loop will reset start to 0

                start = syncOffset - 188;
              }

              pmtParsed = this.pmtParsed = true;
              break;
            }

          case 17:
          case 0x1fff:
            break;

          default:
            unknownPIDs = true;
            break;
        }
      } else {
        this.observer.emit(_events__WEBPACK_IMPORTED_MODULE_5__["Events"].ERROR, _events__WEBPACK_IMPORTED_MODULE_5__["Events"].ERROR, {
          type: _errors__WEBPACK_IMPORTED_MODULE_8__["ErrorTypes"].MEDIA_ERROR,
          details: _errors__WEBPACK_IMPORTED_MODULE_8__["ErrorDetails"].FRAG_PARSING_ERROR,
          fatal: false,
          reason: 'TS packet did not start with 0x47'
        });
      }
    }

    avcTrack.pesData = avcData;
    audioTrack.pesData = audioData;
    id3Track.pesData = id3Data;
    var demuxResult = {
      audioTrack: audioTrack,
      avcTrack: avcTrack,
      id3Track: id3Track,
      textTrack: this._txtTrack
    };

    if (flush) {
      this.extractRemainingSamples(demuxResult);
    }

    return demuxResult;
  };

  _proto.flush = function flush() {
    var remainderData = this.remainderData;
    this.remainderData = null;
    var result;

    if (remainderData) {
      result = this.demux(remainderData, -1, false, true);
    } else {
      result = {
        audioTrack: this._audioTrack,
        avcTrack: this._avcTrack,
        textTrack: this._txtTrack,
        id3Track: this._id3Track
      };
    }

    this.extractRemainingSamples(result);

    if (this.sampleAes) {
      return this.decrypt(result, this.sampleAes);
    }

    return result;
  };

  _proto.extractRemainingSamples = function extractRemainingSamples(demuxResult) {
    var audioTrack = demuxResult.audioTrack,
        avcTrack = demuxResult.avcTrack,
        id3Track = demuxResult.id3Track;
    var avcData = avcTrack.pesData;
    var audioData = audioTrack.pesData;
    var id3Data = id3Track.pesData; // try to parse last PES packets

    var pes;

    if (avcData && (pes = parsePES(avcData))) {
      this.parseAVCPES(pes, true);
      avcTrack.pesData = null;
    } else {
      // either avcData null or PES truncated, keep it for next frag parsing
      avcTrack.pesData = avcData;
    }

    if (audioData && (pes = parsePES(audioData))) {
      if (audioTrack.isAAC) {
        this.parseAACPES(pes);
      } else {
        this.parseMPEGPES(pes);
      }

      audioTrack.pesData = null;
    } else {
      if (audioData !== null && audioData !== void 0 && audioData.size) {
        _utils_logger__WEBPACK_IMPORTED_MODULE_7__["logger"].log('last AAC PES packet truncated,might overlap between fragments');
      } // either audioData null or PES truncated, keep it for next frag parsing


      audioTrack.pesData = audioData;
    }

    if (id3Data && (pes = parsePES(id3Data))) {
      this.parseID3PES(pes);
      id3Track.pesData = null;
    } else {
      // either id3Data null or PES truncated, keep it for next frag parsing
      id3Track.pesData = id3Data;
    }
  };

  _proto.demuxSampleAes = function demuxSampleAes(data, keyData, timeOffset) {
    var demuxResult = this.demux(data, timeOffset, true, !this.config.progressive);
    var sampleAes = this.sampleAes = new _sample_aes__WEBPACK_IMPORTED_MODULE_4__["default"](this.observer, this.config, keyData);
    return this.decrypt(demuxResult, sampleAes);
  };

  _proto.decrypt = function decrypt(demuxResult, sampleAes) {
    return new Promise(function (resolve) {
      var audioTrack = demuxResult.audioTrack,
          avcTrack = demuxResult.avcTrack;

      if (audioTrack.samples && audioTrack.isAAC) {
        sampleAes.decryptAacSamples(audioTrack.samples, 0, function () {
          if (avcTrack.samples) {
            sampleAes.decryptAvcSamples(avcTrack.samples, 0, 0, function () {
              resolve(demuxResult);
            });
          } else {
            resolve(demuxResult);
          }
        });
      } else if (avcTrack.samples) {
        sampleAes.decryptAvcSamples(avcTrack.samples, 0, 0, function () {
          resolve(demuxResult);
        });
      }
    });
  };

  _proto.destroy = function destroy() {
    this._initPTS = this._initDTS = null;
    this._duration = 0;
  };

  _proto.parseAVCPES = function parseAVCPES(pes, last) {
    var _this = this;

    var track = this._avcTrack;
    var units = this.parseAVCNALu(pes.data);
    var debug = false;
    var avcSample = this.avcSample;
    var push;
    var spsfound = false; // free pes.data to save up some memory

    pes.data = null; // if new NAL units found and last sample still there, let's push ...
    // this helps parsing streams with missing AUD (only do this if AUD never found)

    if (avcSample && units.length && !track.audFound) {
      pushAccessUnit(avcSample, track);
      avcSample = this.avcSample = createAVCSample(false, pes.pts, pes.dts, '');
    }

    units.forEach(function (unit) {
      switch (unit.type) {
        // NDR
        case 1:
          {
            push = true;

            if (!avcSample) {
              avcSample = _this.avcSample = createAVCSample(true, pes.pts, pes.dts, '');
            }

            if (debug) {
              avcSample.debug += 'NDR ';
            }

            avcSample.frame = true;
            var data = unit.data; // only check slice type to detect KF in case SPS found in same packet (any keyframe is preceded by SPS ...)

            if (spsfound && data.length > 4) {
              // retrieve slice type by parsing beginning of NAL unit (follow H264 spec, slice_header definition) to detect keyframe embedded in NDR
              var sliceType = new _exp_golomb__WEBPACK_IMPORTED_MODULE_2__["default"](data).readSliceType(); // 2 : I slice, 4 : SI slice, 7 : I slice, 9: SI slice
              // SI slice : A slice that is coded using intra prediction only and using quantisation of the prediction samples.
              // An SI slice can be coded such that its decoded samples can be constructed identically to an SP slice.
              // I slice: A slice that is not an SI slice that is decoded using intra prediction only.
              // if (sliceType === 2 || sliceType === 7) {

              if (sliceType === 2 || sliceType === 4 || sliceType === 7 || sliceType === 9) {
                avcSample.key = true;
              }
            }

            break; // IDR
          }

        case 5:
          push = true; // handle PES not starting with AUD

          if (!avcSample) {
            avcSample = _this.avcSample = createAVCSample(true, pes.pts, pes.dts, '');
          }

          if (debug) {
            avcSample.debug += 'IDR ';
          }

          avcSample.key = true;
          avcSample.frame = true;
          break;
        // SEI

        case 6:
          {
            push = true;

            if (debug && avcSample) {
              avcSample.debug += 'SEI ';
            }

            var expGolombDecoder = new _exp_golomb__WEBPACK_IMPORTED_MODULE_2__["default"](discardEPB(unit.data)); // skip frameType

            expGolombDecoder.readUByte();
            var payloadType = 0;
            var payloadSize = 0;
            var endOfCaptions = false;
            var b = 0;

            while (!endOfCaptions && expGolombDecoder.bytesAvailable > 1) {
              payloadType = 0;

              do {
                b = expGolombDecoder.readUByte();
                payloadType += b;
              } while (b === 0xff); // Parse payload size.


              payloadSize = 0;

              do {
                b = expGolombDecoder.readUByte();
                payloadSize += b;
              } while (b === 0xff); // TODO: there can be more than one payload in an SEI packet...
              // TODO: need to read type and size in a while loop to get them all


              if (payloadType === 4 && expGolombDecoder.bytesAvailable !== 0) {
                endOfCaptions = true;
                var countryCode = expGolombDecoder.readUByte();

                if (countryCode === 181) {
                  var providerCode = expGolombDecoder.readUShort();

                  if (providerCode === 49) {
                    var userStructure = expGolombDecoder.readUInt();

                    if (userStructure === 0x47413934) {
                      var userDataType = expGolombDecoder.readUByte(); // Raw CEA-608 bytes wrapped in CEA-708 packet

                      if (userDataType === 3) {
                        var firstByte = expGolombDecoder.readUByte();
                        var secondByte = expGolombDecoder.readUByte();
                        var totalCCs = 31 & firstByte;
                        var byteArray = [firstByte, secondByte];

                        for (var i = 0; i < totalCCs; i++) {
                          // 3 bytes per CC
                          byteArray.push(expGolombDecoder.readUByte());
                          byteArray.push(expGolombDecoder.readUByte());
                          byteArray.push(expGolombDecoder.readUByte());
                        }

                        insertSampleInOrder(_this._txtTrack.samples, {
                          type: 3,
                          pts: pes.pts,
                          bytes: byteArray
                        });
                      }
                    }
                  }
                }
              } else if (payloadType === 5 && expGolombDecoder.bytesAvailable !== 0) {
                endOfCaptions = true;

                if (payloadSize > 16) {
                  var uuidStrArray = [];

                  for (var _i = 0; _i < 16; _i++) {
                    uuidStrArray.push(expGolombDecoder.readUByte().toString(16));

                    if (_i === 3 || _i === 5 || _i === 7 || _i === 9) {
                      uuidStrArray.push('-');
                    }
                  }

                  var length = payloadSize - 16;
                  var userDataPayloadBytes = new Uint8Array(length);

                  for (var _i2 = 0; _i2 < length; _i2++) {
                    userDataPayloadBytes[_i2] = expGolombDecoder.readUByte();
                  }

                  insertSampleInOrder(_this._txtTrack.samples, {
                    pts: pes.pts,
                    payloadType: payloadType,
                    uuid: uuidStrArray.join(''),
                    userData: Object(_id3__WEBPACK_IMPORTED_MODULE_3__["utf8ArrayToStr"])(userDataPayloadBytes),
                    userDataBytes: userDataPayloadBytes
                  });
                }
              } else if (payloadSize < expGolombDecoder.bytesAvailable) {
                for (var _i3 = 0; _i3 < payloadSize; _i3++) {
                  expGolombDecoder.readUByte();
                }
              }
            }

            break; // SPS
          }

        case 7:
          push = true;
          spsfound = true;

          if (debug && avcSample) {
            avcSample.debug += 'SPS ';
          }

          if (!track.sps) {
            var _expGolombDecoder = new _exp_golomb__WEBPACK_IMPORTED_MODULE_2__["default"](unit.data);

            var config = _expGolombDecoder.readSPS();

            track.width = config.width;
            track.height = config.height;
            track.pixelRatio = config.pixelRatio; // TODO: `track.sps` is defined as a `number[]`, but we're setting it to a `Uint8Array[]`.

            track.sps = [unit.data];
            track.duration = _this._duration;
            var codecarray = unit.data.subarray(1, 4);
            var codecstring = 'avc1.';

            for (var _i4 = 0; _i4 < 3; _i4++) {
              var h = codecarray[_i4].toString(16);

              if (h.length < 2) {
                h = '0' + h;
              }

              codecstring += h;
            }

            track.codec = codecstring;
          }

          break;
        // PPS

        case 8:
          push = true;

          if (debug && avcSample) {
            avcSample.debug += 'PPS ';
          }

          if (!track.pps) {
            // TODO: `track.pss` is defined as a `number[]`, but we're setting it to a `Uint8Array[]`.
            track.pps = [unit.data];
          }

          break;
        // AUD

        case 9:
          push = false;
          track.audFound = true;

          if (avcSample) {
            pushAccessUnit(avcSample, track);
          }

          avcSample = _this.avcSample = createAVCSample(false, pes.pts, pes.dts, debug ? 'AUD ' : '');
          break;
        // Filler Data

        case 12:
          push = false;
          break;

        default:
          push = false;

          if (avcSample) {
            avcSample.debug += 'unknown NAL ' + unit.type + ' ';
          }

          break;
      }

      if (avcSample && push) {
        var _units = avcSample.units;

        _units.push(unit);
      }
    }); // if last PES packet, push samples

    if (last && avcSample) {
      pushAccessUnit(avcSample, track);
      this.avcSample = null;
    }
  };

  _proto.getLastNalUnit = function getLastNalUnit() {
    var _avcSample;

    var avcSample = this.avcSample;
    var lastUnit; // try to fallback to previous sample if current one is empty

    if (!avcSample || avcSample.units.length === 0) {
      var samples = this._avcTrack.samples;
      avcSample = samples[samples.length - 1];
    }

    if ((_avcSample = avcSample) !== null && _avcSample !== void 0 && _avcSample.units) {
      var units = avcSample.units;
      lastUnit = units[units.length - 1];
    }

    return lastUnit;
  };

  _proto.parseAVCNALu = function parseAVCNALu(array) {
    var len = array.byteLength;
    var track = this._avcTrack;
    var state = track.naluState || 0;
    var lastState = state;
    var units = [];
    var i = 0;
    var value;
    var overflow;
    var unitType;
    var lastUnitStart = -1;
    var lastUnitType = 0; // logger.log('PES:' + Hex.hexDump(array));

    if (state === -1) {
      // special use case where we found 3 or 4-byte start codes exactly at the end of previous PES packet
      lastUnitStart = 0; // NALu type is value read from offset 0

      lastUnitType = array[0] & 0x1f;
      state = 0;
      i = 1;
    }

    while (i < len) {
      value = array[i++]; // optimization. state 0 and 1 are the predominant case. let's handle them outside of the switch/case

      if (!state) {
        state = value ? 0 : 1;
        continue;
      }

      if (state === 1) {
        state = value ? 0 : 2;
        continue;
      } // here we have state either equal to 2 or 3


      if (!value) {
        state = 3;
      } else if (value === 1) {
        if (lastUnitStart >= 0) {
          var unit = {
            data: array.subarray(lastUnitStart, i - state - 1),
            type: lastUnitType
          }; // logger.log('pushing NALU, type/size:' + unit.type + '/' + unit.data.byteLength);

          units.push(unit);
        } else {
          // lastUnitStart is undefined => this is the first start code found in this PES packet
          // first check if start code delimiter is overlapping between 2 PES packets,
          // ie it started in last packet (lastState not zero)
          // and ended at the beginning of this PES packet (i <= 4 - lastState)
          var lastUnit = this.getLastNalUnit();

          if (lastUnit) {
            if (lastState && i <= 4 - lastState) {
              // start delimiter overlapping between PES packets
              // strip start delimiter bytes from the end of last NAL unit
              // check if lastUnit had a state different from zero
              if (lastUnit.state) {
                // strip last bytes
                lastUnit.data = lastUnit.data.subarray(0, lastUnit.data.byteLength - lastState);
              }
            } // If NAL units are not starting right at the beginning of the PES packet, push preceding data into previous NAL unit.


            overflow = i - state - 1;

            if (overflow > 0) {
              // logger.log('first NALU found with overflow:' + overflow);
              var tmp = new Uint8Array(lastUnit.data.byteLength + overflow);
              tmp.set(lastUnit.data, 0);
              tmp.set(array.subarray(0, overflow), lastUnit.data.byteLength);
              lastUnit.data = tmp;
              lastUnit.state = 0;
            }
          }
        } // check if we can read unit type


        if (i < len) {
          unitType = array[i] & 0x1f; // logger.log('find NALU @ offset:' + i + ',type:' + unitType);

          lastUnitStart = i;
          lastUnitType = unitType;
          state = 0;
        } else {
          // not enough byte to read unit type. let's read it on next PES parsing
          state = -1;
        }
      } else {
        state = 0;
      }
    }

    if (lastUnitStart >= 0 && state >= 0) {
      var _unit = {
        data: array.subarray(lastUnitStart, len),
        type: lastUnitType,
        state: state
      };
      units.push(_unit); // logger.log('pushing NALU, type/size/state:' + unit.type + '/' + unit.data.byteLength + '/' + state);
    } // no NALu found


    if (units.length === 0) {
      // append pes.data to previous NAL unit
      var _lastUnit = this.getLastNalUnit();

      if (_lastUnit) {
        var _tmp = new Uint8Array(_lastUnit.data.byteLength + array.byteLength);

        _tmp.set(_lastUnit.data, 0);

        _tmp.set(array, _lastUnit.data.byteLength);

        _lastUnit.data = _tmp;
      }
    }

    track.naluState = state;
    return units;
  };

  _proto.parseAACPES = function parseAACPES(pes) {
    var startOffset = 0;
    var track = this._audioTrack;
    var aacOverFlow = this.aacOverFlow;
    var data = pes.data;

    if (aacOverFlow) {
      this.aacOverFlow = null;
      var sampleLength = aacOverFlow.sample.unit.byteLength;
      var frameMissingBytes = Math.min(aacOverFlow.missing, sampleLength);
      var frameOverflowBytes = sampleLength - frameMissingBytes;
      aacOverFlow.sample.unit.set(data.subarray(0, frameMissingBytes), frameOverflowBytes);
      track.samples.push(aacOverFlow.sample); // logger.log(`AAC: append overflowing ${frameOverflowBytes} bytes to beginning of new PES`);

      startOffset = aacOverFlow.missing;
    } // look for ADTS header (0xFFFx)


    var offset;
    var len;

    for (offset = startOffset, len = data.length; offset < len - 1; offset++) {
      if (_adts__WEBPACK_IMPORTED_MODULE_0__["isHeader"](data, offset)) {
        break;
      }
    } // if ADTS header does not start straight from the beginning of the PES payload, raise an error


    if (offset !== startOffset) {
      var reason;
      var fatal;

      if (offset < len - 1) {
        reason = "AAC PES did not start with ADTS header,offset:" + offset;
        fatal = false;
      } else {
        reason = 'no ADTS header found in AAC PES';
        fatal = true;
      }

      _utils_logger__WEBPACK_IMPORTED_MODULE_7__["logger"].warn("parsing error:" + reason);
      this.observer.emit(_events__WEBPACK_IMPORTED_MODULE_5__["Events"].ERROR, _events__WEBPACK_IMPORTED_MODULE_5__["Events"].ERROR, {
        type: _errors__WEBPACK_IMPORTED_MODULE_8__["ErrorTypes"].MEDIA_ERROR,
        details: _errors__WEBPACK_IMPORTED_MODULE_8__["ErrorDetails"].FRAG_PARSING_ERROR,
        fatal: fatal,
        reason: reason
      });

      if (fatal) {
        return;
      }
    }

    _adts__WEBPACK_IMPORTED_MODULE_0__["initTrackConfig"](track, this.observer, data, offset, this.audioCodec);
    var pts;

    if (pes.pts !== undefined) {
      pts = pes.pts;
    } else if (aacOverFlow) {
      // if last AAC frame is overflowing, we should ensure timestamps are contiguous:
      // first sample PTS should be equal to last sample PTS + frameDuration
      var frameDuration = _adts__WEBPACK_IMPORTED_MODULE_0__["getFrameDuration"](track.samplerate);
      pts = aacOverFlow.sample.pts + frameDuration;
    } else {
      _utils_logger__WEBPACK_IMPORTED_MODULE_7__["logger"].warn('[tsdemuxer]: AAC PES unknown PTS');
      return;
    } // scan for aac samples


    var frameIndex = 0;

    while (offset < len) {
      if (_adts__WEBPACK_IMPORTED_MODULE_0__["isHeader"](data, offset)) {
        if (offset + 5 < len) {
          var frame = _adts__WEBPACK_IMPORTED_MODULE_0__["appendFrame"](track, data, offset, pts, frameIndex);

          if (frame) {
            if (frame.missing) {
              this.aacOverFlow = frame;
            } else {
              offset += frame.length;
              frameIndex++;
              continue;
            }
          }
        } // We are at an ADTS header, but do not have enough data for a frame
        // Remaining data will be added to aacOverFlow


        break;
      } else {
        // nothing found, keep looking
        offset++;
      }
    }
  };

  _proto.parseMPEGPES = function parseMPEGPES(pes) {
    var data = pes.data;
    var length = data.length;
    var frameIndex = 0;
    var offset = 0;
    var pts = pes.pts;

    if (pts === undefined) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_7__["logger"].warn('[tsdemuxer]: MPEG PES unknown PTS');
      return;
    }

    while (offset < length) {
      if (_mpegaudio__WEBPACK_IMPORTED_MODULE_1__["isHeader"](data, offset)) {
        var frame = _mpegaudio__WEBPACK_IMPORTED_MODULE_1__["appendFrame"](this._audioTrack, data, offset, pts, frameIndex);

        if (frame) {
          offset += frame.length;
          frameIndex++;
        } else {
          // logger.log('Unable to parse Mpeg audio frame');
          break;
        }
      } else {
        // nothing found, keep looking
        offset++;
      }
    }
  };

  _proto.parseID3PES = function parseID3PES(pes) {
    if (pes.pts === undefined) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_7__["logger"].warn('[tsdemuxer]: ID3 PES unknown PTS');
      return;
    }

    this._id3Track.samples.push(pes);
  };

  return TSDemuxer;
}();

TSDemuxer.minProbeByteLength = 188;

function createAVCSample(key, pts, dts, debug) {
  return {
    key: key,
    frame: false,
    pts: pts,
    dts: dts,
    units: [],
    debug: debug,
    length: 0
  };
}

function parsePAT(data, offset) {
  // skip the PSI header and parse the first PMT entry
  return (data[offset + 10] & 0x1f) << 8 | data[offset + 11]; // logger.log('PMT PID:'  + this._pmtId);
}

function parsePMT(data, offset, mpegSupported, isSampleAes) {
  var result = {
    audio: -1,
    avc: -1,
    id3: -1,
    isAAC: true
  };
  var sectionLength = (data[offset + 1] & 0x0f) << 8 | data[offset + 2];
  var tableEnd = offset + 3 + sectionLength - 4; // to determine where the table is, we have to figure out how
  // long the program info descriptors are

  var programInfoLength = (data[offset + 10] & 0x0f) << 8 | data[offset + 11]; // advance the offset to the first entry in the mapping table

  offset += 12 + programInfoLength;

  while (offset < tableEnd) {
    var pid = (data[offset + 1] & 0x1f) << 8 | data[offset + 2];

    switch (data[offset]) {
      case 0xcf:
        // SAMPLE-AES AAC
        if (!isSampleAes) {
          _utils_logger__WEBPACK_IMPORTED_MODULE_7__["logger"].log('ADTS AAC with AES-128-CBC frame encryption found in unencrypted stream');
          break;
        }

      /* falls through */

      case 0x0f:
        // ISO/IEC 13818-7 ADTS AAC (MPEG-2 lower bit-rate audio)
        // logger.log('AAC PID:'  + pid);
        if (result.audio === -1) {
          result.audio = pid;
        }

        break;
      // Packetized metadata (ID3)

      case 0x15:
        // logger.log('ID3 PID:'  + pid);
        if (result.id3 === -1) {
          result.id3 = pid;
        }

        break;

      case 0xdb:
        // SAMPLE-AES AVC
        if (!isSampleAes) {
          _utils_logger__WEBPACK_IMPORTED_MODULE_7__["logger"].log('H.264 with AES-128-CBC slice encryption found in unencrypted stream');
          break;
        }

      /* falls through */

      case 0x1b:
        // ITU-T Rec. H.264 and ISO/IEC 14496-10 (lower bit-rate video)
        // logger.log('AVC PID:'  + pid);
        if (result.avc === -1) {
          result.avc = pid;
        }

        break;
      // ISO/IEC 11172-3 (MPEG-1 audio)
      // or ISO/IEC 13818-3 (MPEG-2 halved sample rate audio)

      case 0x03:
      case 0x04:
        // logger.log('MPEG PID:'  + pid);
        if (!mpegSupported) {
          _utils_logger__WEBPACK_IMPORTED_MODULE_7__["logger"].log('MPEG audio found, not supported in this browser');
        } else if (result.audio === -1) {
          result.audio = pid;
          result.isAAC = false;
        }

        break;

      case 0x24:
        _utils_logger__WEBPACK_IMPORTED_MODULE_7__["logger"].warn('Unsupported HEVC stream type found');
        break;

      default:
        // logger.log('unknown stream type:' + data[offset]);
        break;
    } // move to the next table entry
    // skip past the elementary stream descriptors, if present


    offset += ((data[offset + 3] & 0x0f) << 8 | data[offset + 4]) + 5;
  }

  return result;
}

function parsePES(stream) {
  var i = 0;
  var frag;
  var pesLen;
  var pesHdrLen;
  var pesPts;
  var pesDts;
  var data = stream.data; // safety check

  if (!stream || stream.size === 0) {
    return null;
  } // we might need up to 19 bytes to read PES header
  // if first chunk of data is less than 19 bytes, let's merge it with following ones until we get 19 bytes
  // usually only one merge is needed (and this is rare ...)


  while (data[0].length < 19 && data.length > 1) {
    var newData = new Uint8Array(data[0].length + data[1].length);
    newData.set(data[0]);
    newData.set(data[1], data[0].length);
    data[0] = newData;
    data.splice(1, 1);
  } // retrieve PTS/DTS from first fragment


  frag = data[0];
  var pesPrefix = (frag[0] << 16) + (frag[1] << 8) + frag[2];

  if (pesPrefix === 1) {
    pesLen = (frag[4] << 8) + frag[5]; // if PES parsed length is not zero and greater than total received length, stop parsing. PES might be truncated
    // minus 6 : PES header size

    if (pesLen && pesLen > stream.size - 6) {
      return null;
    }

    var pesFlags = frag[7];

    if (pesFlags & 0xc0) {
      /* PES header described here : http://dvd.sourceforge.net/dvdinfo/pes-hdr.html
          as PTS / DTS is 33 bit we cannot use bitwise operator in JS,
          as Bitwise operators treat their operands as a sequence of 32 bits */
      pesPts = (frag[9] & 0x0e) * 536870912 + // 1 << 29
      (frag[10] & 0xff) * 4194304 + // 1 << 22
      (frag[11] & 0xfe) * 16384 + // 1 << 14
      (frag[12] & 0xff) * 128 + // 1 << 7
      (frag[13] & 0xfe) / 2;

      if (pesFlags & 0x40) {
        pesDts = (frag[14] & 0x0e) * 536870912 + // 1 << 29
        (frag[15] & 0xff) * 4194304 + // 1 << 22
        (frag[16] & 0xfe) * 16384 + // 1 << 14
        (frag[17] & 0xff) * 128 + // 1 << 7
        (frag[18] & 0xfe) / 2;

        if (pesPts - pesDts > 60 * 90000) {
          _utils_logger__WEBPACK_IMPORTED_MODULE_7__["logger"].warn(Math.round((pesPts - pesDts) / 90000) + "s delta between PTS and DTS, align them");
          pesPts = pesDts;
        }
      } else {
        pesDts = pesPts;
      }
    }

    pesHdrLen = frag[8]; // 9 bytes : 6 bytes for PES header + 3 bytes for PES extension

    var payloadStartOffset = pesHdrLen + 9;

    if (stream.size <= payloadStartOffset) {
      return null;
    }

    stream.size -= payloadStartOffset; // reassemble PES packet

    var pesData = new Uint8Array(stream.size);

    for (var j = 0, dataLen = data.length; j < dataLen; j++) {
      frag = data[j];
      var len = frag.byteLength;

      if (payloadStartOffset) {
        if (payloadStartOffset > len) {
          // trim full frag if PES header bigger than frag
          payloadStartOffset -= len;
          continue;
        } else {
          // trim partial frag if PES header smaller than frag
          frag = frag.subarray(payloadStartOffset);
          len -= payloadStartOffset;
          payloadStartOffset = 0;
        }
      }

      pesData.set(frag, i);
      i += len;
    }

    if (pesLen) {
      // payload size : remove PES header + PES extension
      pesLen -= pesHdrLen + 3;
    }

    return {
      data: pesData,
      pts: pesPts,
      dts: pesDts,
      len: pesLen
    };
  }

  return null;
}

function pushAccessUnit(avcSample, avcTrack) {
  if (avcSample.units.length && avcSample.frame) {
    // if sample does not have PTS/DTS, patch with last sample PTS/DTS
    if (avcSample.pts === undefined) {
      var samples = avcTrack.samples;
      var nbSamples = samples.length;

      if (nbSamples) {
        var lastSample = samples[nbSamples - 1];
        avcSample.pts = lastSample.pts;
        avcSample.dts = lastSample.dts;
      } else {
        // dropping samples, no timestamp found
        avcTrack.dropped++;
        return;
      }
    }

    avcTrack.samples.push(avcSample);
  }

  if (avcSample.debug.length) {
    _utils_logger__WEBPACK_IMPORTED_MODULE_7__["logger"].log(avcSample.pts + '/' + avcSample.dts + ':' + avcSample.debug);
  }
}

function insertSampleInOrder(arr, data) {
  var len = arr.length;

  if (len > 0) {
    if (data.pts >= arr[len - 1].pts) {
      arr.push(data);
    } else {
      for (var pos = len - 1; pos >= 0; pos--) {
        if (data.pts < arr[pos].pts) {
          arr.splice(pos, 0, data);
          break;
        }
      }
    }
  } else {
    arr.push(data);
  }
}
/**
 * remove Emulation Prevention bytes from a RBSP
 */


function discardEPB(data) {
  var length = data.byteLength;
  var EPBPositions = [];
  var i = 1; // Find all `Emulation Prevention Bytes`

  while (i < length - 2) {
    if (data[i] === 0 && data[i + 1] === 0 && data[i + 2] === 0x03) {
      EPBPositions.push(i + 2);
      i += 2;
    } else {
      i++;
    }
  } // If no Emulation Prevention Bytes were found just return the original
  // array


  if (EPBPositions.length === 0) {
    return data;
  } // Create a new array to hold the NAL unit data


  var newLength = length - EPBPositions.length;
  var newData = new Uint8Array(newLength);
  var sourceIndex = 0;

  for (i = 0; i < newLength; sourceIndex++, i++) {
    if (sourceIndex === EPBPositions[0]) {
      // Skip this byte
      sourceIndex++; // Remove this position index

      EPBPositions.shift();
    }

    newData[i] = data[sourceIndex];
  }

  return newData;
}
/* harmony default export */ __webpack_exports__["default"] = (TSDemuxer);

/***/ }),

/***/ "./src/errors.ts":
/*!***********************!*\
  !*** ./src/errors.ts ***!
  \***********************/
/*! exports provided: ErrorTypes, ErrorDetails */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "ErrorTypes", function() { return ErrorTypes; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "ErrorDetails", function() { return ErrorDetails; });
var ErrorTypes;
/**
 * @enum {ErrorDetails}
 * @typedef {string} ErrorDetail
 */

(function (ErrorTypes) {
  ErrorTypes["NETWORK_ERROR"] = "networkError";
  ErrorTypes["MEDIA_ERROR"] = "mediaError";
  ErrorTypes["KEY_SYSTEM_ERROR"] = "keySystemError";
  ErrorTypes["MUX_ERROR"] = "muxError";
  ErrorTypes["OTHER_ERROR"] = "otherError";
})(ErrorTypes || (ErrorTypes = {}));

var ErrorDetails;

(function (ErrorDetails) {
  ErrorDetails["KEY_SYSTEM_NO_KEYS"] = "keySystemNoKeys";
  ErrorDetails["KEY_SYSTEM_NO_ACCESS"] = "keySystemNoAccess";
  ErrorDetails["KEY_SYSTEM_NO_SESSION"] = "keySystemNoSession";
  ErrorDetails["KEY_SYSTEM_LICENSE_REQUEST_FAILED"] = "keySystemLicenseRequestFailed";
  ErrorDetails["KEY_SYSTEM_NO_INIT_DATA"] = "keySystemNoInitData";
  ErrorDetails["MANIFEST_LOAD_ERROR"] = "manifestLoadError";
  ErrorDetails["MANIFEST_LOAD_TIMEOUT"] = "manifestLoadTimeOut";
  ErrorDetails["MANIFEST_PARSING_ERROR"] = "manifestParsingError";
  ErrorDetails["MANIFEST_INCOMPATIBLE_CODECS_ERROR"] = "manifestIncompatibleCodecsError";
  ErrorDetails["LEVEL_EMPTY_ERROR"] = "levelEmptyError";
  ErrorDetails["LEVEL_LOAD_ERROR"] = "levelLoadError";
  ErrorDetails["LEVEL_LOAD_TIMEOUT"] = "levelLoadTimeOut";
  ErrorDetails["LEVEL_SWITCH_ERROR"] = "levelSwitchError";
  ErrorDetails["AUDIO_TRACK_LOAD_ERROR"] = "audioTrackLoadError";
  ErrorDetails["AUDIO_TRACK_LOAD_TIMEOUT"] = "audioTrackLoadTimeOut";
  ErrorDetails["SUBTITLE_LOAD_ERROR"] = "subtitleTrackLoadError";
  ErrorDetails["SUBTITLE_TRACK_LOAD_TIMEOUT"] = "subtitleTrackLoadTimeOut";
  ErrorDetails["FRAG_LOAD_ERROR"] = "fragLoadError";
  ErrorDetails["FRAG_LOAD_TIMEOUT"] = "fragLoadTimeOut";
  ErrorDetails["FRAG_DECRYPT_ERROR"] = "fragDecryptError";
  ErrorDetails["FRAG_PARSING_ERROR"] = "fragParsingError";
  ErrorDetails["REMUX_ALLOC_ERROR"] = "remuxAllocError";
  ErrorDetails["KEY_LOAD_ERROR"] = "keyLoadError";
  ErrorDetails["KEY_LOAD_TIMEOUT"] = "keyLoadTimeOut";
  ErrorDetails["BUFFER_ADD_CODEC_ERROR"] = "bufferAddCodecError";
  ErrorDetails["BUFFER_INCOMPATIBLE_CODECS_ERROR"] = "bufferIncompatibleCodecsError";
  ErrorDetails["BUFFER_APPEND_ERROR"] = "bufferAppendError";
  ErrorDetails["BUFFER_APPENDING_ERROR"] = "bufferAppendingError";
  ErrorDetails["BUFFER_STALLED_ERROR"] = "bufferStalledError";
  ErrorDetails["BUFFER_FULL_ERROR"] = "bufferFullError";
  ErrorDetails["BUFFER_SEEK_OVER_HOLE"] = "bufferSeekOverHole";
  ErrorDetails["BUFFER_NUDGE_ON_STALL"] = "bufferNudgeOnStall";
  ErrorDetails["INTERNAL_EXCEPTION"] = "internalException";
  ErrorDetails["INTERNAL_ABORTED"] = "aborted";
  ErrorDetails["UNKNOWN"] = "unknown";
})(ErrorDetails || (ErrorDetails = {}));

/***/ }),

/***/ "./src/events.ts":
/*!***********************!*\
  !*** ./src/events.ts ***!
  \***********************/
/*! exports provided: Events */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "Events", function() { return Events; });
/**
 * @readonly
 * @enum {string}
 */
var Events;

(function (Events) {
  Events["MEDIA_ATTACHING"] = "hlsMediaAttaching";
  Events["MEDIA_ATTACHED"] = "hlsMediaAttached";
  Events["MEDIA_DETACHING"] = "hlsMediaDetaching";
  Events["MEDIA_DETACHED"] = "hlsMediaDetached";
  Events["BUFFER_RESET"] = "hlsBufferReset";
  Events["BUFFER_CODECS"] = "hlsBufferCodecs";
  Events["BUFFER_CREATED"] = "hlsBufferCreated";
  Events["BUFFER_APPENDING"] = "hlsBufferAppending";
  Events["BUFFER_APPENDED"] = "hlsBufferAppended";
  Events["BUFFER_EOS"] = "hlsBufferEos";
  Events["BUFFER_FLUSHING"] = "hlsBufferFlushing";
  Events["BUFFER_FLUSHED"] = "hlsBufferFlushed";
  Events["MANIFEST_LOADING"] = "hlsManifestLoading";
  Events["MANIFEST_LOADED"] = "hlsManifestLoaded";
  Events["MANIFEST_PARSED"] = "hlsManifestParsed";
  Events["LEVEL_SWITCHING"] = "hlsLevelSwitching";
  Events["LEVEL_SWITCHED"] = "hlsLevelSwitched";
  Events["LEVEL_LOADING"] = "hlsLevelLoading";
  Events["LEVEL_LOADED"] = "hlsLevelLoaded";
  Events["LEVEL_UPDATED"] = "hlsLevelUpdated";
  Events["LEVEL_PTS_UPDATED"] = "hlsLevelPtsUpdated";
  Events["LEVELS_UPDATED"] = "hlsLevelsUpdated";
  Events["AUDIO_TRACKS_UPDATED"] = "hlsAudioTracksUpdated";
  Events["AUDIO_TRACK_SWITCHING"] = "hlsAudioTrackSwitching";
  Events["AUDIO_TRACK_SWITCHED"] = "hlsAudioTrackSwitched";
  Events["AUDIO_TRACK_LOADING"] = "hlsAudioTrackLoading";
  Events["AUDIO_TRACK_LOADED"] = "hlsAudioTrackLoaded";
  Events["SUBTITLE_TRACKS_UPDATED"] = "hlsSubtitleTracksUpdated";
  Events["SUBTITLE_TRACKS_CLEARED"] = "hlsSubtitleTracksCleared";
  Events["SUBTITLE_TRACK_SWITCH"] = "hlsSubtitleTrackSwitch";
  Events["SUBTITLE_TRACK_LOADING"] = "hlsSubtitleTrackLoading";
  Events["SUBTITLE_TRACK_LOADED"] = "hlsSubtitleTrackLoaded";
  Events["SUBTITLE_FRAG_PROCESSED"] = "hlsSubtitleFragProcessed";
  Events["CUES_PARSED"] = "hlsCuesParsed";
  Events["NON_NATIVE_TEXT_TRACKS_FOUND"] = "hlsNonNativeTextTracksFound";
  Events["INIT_PTS_FOUND"] = "hlsInitPtsFound";
  Events["FRAG_LOADING"] = "hlsFragLoading";
  Events["FRAG_LOAD_EMERGENCY_ABORTED"] = "hlsFragLoadEmergencyAborted";
  Events["FRAG_LOADED"] = "hlsFragLoaded";
  Events["FRAG_DECRYPTED"] = "hlsFragDecrypted";
  Events["FRAG_PARSING_INIT_SEGMENT"] = "hlsFragParsingInitSegment";
  Events["FRAG_PARSING_USERDATA"] = "hlsFragParsingUserdata";
  Events["FRAG_PARSING_METADATA"] = "hlsFragParsingMetadata";
  Events["FRAG_PARSED"] = "hlsFragParsed";
  Events["FRAG_BUFFERED"] = "hlsFragBuffered";
  Events["FRAG_CHANGED"] = "hlsFragChanged";
  Events["FPS_DROP"] = "hlsFpsDrop";
  Events["FPS_DROP_LEVEL_CAPPING"] = "hlsFpsDropLevelCapping";
  Events["ERROR"] = "hlsError";
  Events["DESTROYING"] = "hlsDestroying";
  Events["KEY_LOADING"] = "hlsKeyLoading";
  Events["KEY_LOADED"] = "hlsKeyLoaded";
  Events["LIVE_BACK_BUFFER_REACHED"] = "hlsLiveBackBufferReached";
  Events["BACK_BUFFER_REACHED"] = "hlsBackBufferReached";
})(Events || (Events = {}));

/***/ }),

/***/ "./src/hls.ts":
/*!********************!*\
  !*** ./src/hls.ts ***!
  \********************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "default", function() { return Hls; });
/* harmony import */ var url_toolkit__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! url-toolkit */ "./node_modules/url-toolkit/src/url-toolkit.js");
/* harmony import */ var url_toolkit__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(url_toolkit__WEBPACK_IMPORTED_MODULE_0__);
/* harmony import */ var _loader_playlist_loader__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./loader/playlist-loader */ "./src/loader/playlist-loader.ts");
/* harmony import */ var _loader_key_loader__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./loader/key-loader */ "./src/loader/key-loader.ts");
/* harmony import */ var _controller_id3_track_controller__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./controller/id3-track-controller */ "./src/controller/id3-track-controller.ts");
/* harmony import */ var _controller_latency_controller__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ./controller/latency-controller */ "./src/controller/latency-controller.ts");
/* harmony import */ var _controller_level_controller__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ./controller/level-controller */ "./src/controller/level-controller.ts");
/* harmony import */ var _controller_fragment_tracker__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ./controller/fragment-tracker */ "./src/controller/fragment-tracker.ts");
/* harmony import */ var _controller_stream_controller__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ./controller/stream-controller */ "./src/controller/stream-controller.ts");
/* harmony import */ var _is_supported__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! ./is-supported */ "./src/is-supported.ts");
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(/*! ./utils/logger */ "./src/utils/logger.ts");
/* harmony import */ var _config__WEBPACK_IMPORTED_MODULE_10__ = __webpack_require__(/*! ./config */ "./src/config.ts");
/* harmony import */ var eventemitter3__WEBPACK_IMPORTED_MODULE_11__ = __webpack_require__(/*! eventemitter3 */ "./node_modules/eventemitter3/index.js");
/* harmony import */ var eventemitter3__WEBPACK_IMPORTED_MODULE_11___default = /*#__PURE__*/__webpack_require__.n(eventemitter3__WEBPACK_IMPORTED_MODULE_11__);
/* harmony import */ var _events__WEBPACK_IMPORTED_MODULE_12__ = __webpack_require__(/*! ./events */ "./src/events.ts");
/* harmony import */ var _errors__WEBPACK_IMPORTED_MODULE_13__ = __webpack_require__(/*! ./errors */ "./src/errors.ts");
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
















/**
 * @module Hls
 * @class
 * @constructor
 */
var Hls = /*#__PURE__*/function () {
  Hls.isSupported = function isSupported() {
    return Object(_is_supported__WEBPACK_IMPORTED_MODULE_8__["isSupported"])();
  };

  /**
   * Creates an instance of an HLS client that can attach to exactly one `HTMLMediaElement`.
   *
   * @constructs Hls
   * @param {HlsConfig} config
   */
  function Hls(userConfig) {
    if (userConfig === void 0) {
      userConfig = {};
    }

    this.config = void 0;
    this.userConfig = void 0;
    this.coreComponents = void 0;
    this.networkControllers = void 0;
    this._emitter = new eventemitter3__WEBPACK_IMPORTED_MODULE_11__["EventEmitter"]();
    this._autoLevelCapping = void 0;
    this.abrController = void 0;
    this.bufferController = void 0;
    this.capLevelController = void 0;
    this.latencyController = void 0;
    this.levelController = void 0;
    this.streamController = void 0;
    this.audioTrackController = void 0;
    this.subtitleTrackController = void 0;
    this.emeController = void 0;
    this.cmcdController = void 0;
    this._media = null;
    this.url = null;
    var config = this.config = Object(_config__WEBPACK_IMPORTED_MODULE_10__["mergeConfig"])(Hls.DefaultConfig, userConfig);
    this.userConfig = userConfig;
    Object(_utils_logger__WEBPACK_IMPORTED_MODULE_9__["enableLogs"])(config.debug);
    this._autoLevelCapping = -1;

    if (config.progressive) {
      Object(_config__WEBPACK_IMPORTED_MODULE_10__["enableStreamingMode"])(config);
    } // core controllers and network loaders


    var ConfigAbrController = config.abrController,
        ConfigBufferController = config.bufferController,
        ConfigCapLevelController = config.capLevelController,
        ConfigFpsController = config.fpsController;
    var abrController = this.abrController = new ConfigAbrController(this);
    var bufferController = this.bufferController = new ConfigBufferController(this);
    var capLevelController = this.capLevelController = new ConfigCapLevelController(this);
    var fpsController = new ConfigFpsController(this);
    var playListLoader = new _loader_playlist_loader__WEBPACK_IMPORTED_MODULE_1__["default"](this);
    var keyLoader = new _loader_key_loader__WEBPACK_IMPORTED_MODULE_2__["default"](this);
    var id3TrackController = new _controller_id3_track_controller__WEBPACK_IMPORTED_MODULE_3__["default"](this); // network controllers

    var levelController = this.levelController = new _controller_level_controller__WEBPACK_IMPORTED_MODULE_5__["default"](this); // FragmentTracker must be defined before StreamController because the order of event handling is important

    var fragmentTracker = new _controller_fragment_tracker__WEBPACK_IMPORTED_MODULE_6__["FragmentTracker"](this);
    var streamController = this.streamController = new _controller_stream_controller__WEBPACK_IMPORTED_MODULE_7__["default"](this, fragmentTracker); // Cap level controller uses streamController to flush the buffer

    capLevelController.setStreamController(streamController); // fpsController uses streamController to switch when frames are being dropped

    fpsController.setStreamController(streamController);
    var networkControllers = [levelController, streamController];
    this.networkControllers = networkControllers;
    var coreComponents = [playListLoader, keyLoader, abrController, bufferController, capLevelController, fpsController, id3TrackController, fragmentTracker];
    this.audioTrackController = this.createController(config.audioTrackController, null, networkControllers);
    this.createController(config.audioStreamController, fragmentTracker, networkControllers); // subtitleTrackController must be defined before  because the order of event handling is important

    this.subtitleTrackController = this.createController(config.subtitleTrackController, null, networkControllers);
    this.createController(config.subtitleStreamController, fragmentTracker, networkControllers);
    this.createController(config.timelineController, null, coreComponents);
    this.emeController = this.createController(config.emeController, null, coreComponents);
    this.cmcdController = this.createController(config.cmcdController, null, coreComponents);
    this.latencyController = this.createController(_controller_latency_controller__WEBPACK_IMPORTED_MODULE_4__["default"], null, coreComponents);
    this.coreComponents = coreComponents;
  }

  var _proto = Hls.prototype;

  _proto.createController = function createController(ControllerClass, fragmentTracker, components) {
    if (ControllerClass) {
      var controllerInstance = fragmentTracker ? new ControllerClass(this, fragmentTracker) : new ControllerClass(this);

      if (components) {
        components.push(controllerInstance);
      }

      return controllerInstance;
    }

    return null;
  } // Delegate the EventEmitter through the public API of Hls.js
  ;

  _proto.on = function on(event, listener, context) {
    if (context === void 0) {
      context = this;
    }

    this._emitter.on(event, listener, context);
  };

  _proto.once = function once(event, listener, context) {
    if (context === void 0) {
      context = this;
    }

    this._emitter.once(event, listener, context);
  };

  _proto.removeAllListeners = function removeAllListeners(event) {
    this._emitter.removeAllListeners(event);
  };

  _proto.off = function off(event, listener, context, once) {
    if (context === void 0) {
      context = this;
    }

    this._emitter.off(event, listener, context, once);
  };

  _proto.listeners = function listeners(event) {
    return this._emitter.listeners(event);
  };

  _proto.emit = function emit(event, name, eventObject) {
    return this._emitter.emit(event, name, eventObject);
  };

  _proto.trigger = function trigger(event, eventObject) {
    if (this.config.debug) {
      return this.emit(event, event, eventObject);
    } else {
      try {
        return this.emit(event, event, eventObject);
      } catch (e) {
        _utils_logger__WEBPACK_IMPORTED_MODULE_9__["logger"].error('An internal error happened while handling event ' + event + '. Error message: "' + e.message + '". Here is a stacktrace:', e);
        this.trigger(_events__WEBPACK_IMPORTED_MODULE_12__["Events"].ERROR, {
          type: _errors__WEBPACK_IMPORTED_MODULE_13__["ErrorTypes"].OTHER_ERROR,
          details: _errors__WEBPACK_IMPORTED_MODULE_13__["ErrorDetails"].INTERNAL_EXCEPTION,
          fatal: false,
          event: event,
          error: e
        });
      }
    }

    return false;
  };

  _proto.listenerCount = function listenerCount(event) {
    return this._emitter.listenerCount(event);
  }
  /**
   * Dispose of the instance
   */
  ;

  _proto.destroy = function destroy() {
    _utils_logger__WEBPACK_IMPORTED_MODULE_9__["logger"].log('destroy');
    this.trigger(_events__WEBPACK_IMPORTED_MODULE_12__["Events"].DESTROYING, undefined);
    this.detachMedia();
    this.removeAllListeners();
    this._autoLevelCapping = -1;
    this.url = null;
    this.networkControllers.forEach(function (component) {
      return component.destroy();
    });
    this.networkControllers.length = 0;
    this.coreComponents.forEach(function (component) {
      return component.destroy();
    });
    this.coreComponents.length = 0;
  }
  /**
   * Attaches Hls.js to a media element
   * @param {HTMLMediaElement} media
   */
  ;

  _proto.attachMedia = function attachMedia(media) {
    _utils_logger__WEBPACK_IMPORTED_MODULE_9__["logger"].log('attachMedia');
    this._media = media;
    this.trigger(_events__WEBPACK_IMPORTED_MODULE_12__["Events"].MEDIA_ATTACHING, {
      media: media
    });
  }
  /**
   * Detach Hls.js from the media
   */
  ;

  _proto.detachMedia = function detachMedia() {
    _utils_logger__WEBPACK_IMPORTED_MODULE_9__["logger"].log('detachMedia');
    this.trigger(_events__WEBPACK_IMPORTED_MODULE_12__["Events"].MEDIA_DETACHING, undefined);
    this._media = null;
  }
  /**
   * Set the source URL. Can be relative or absolute.
   * @param {string} url
   */
  ;

  _proto.loadSource = function loadSource(url) {
    this.stopLoad();
    var media = this.media;
    var loadedSource = this.url;
    var loadingSource = this.url = url_toolkit__WEBPACK_IMPORTED_MODULE_0__["buildAbsoluteURL"](self.location.href, url, {
      alwaysNormalize: true
    });
    _utils_logger__WEBPACK_IMPORTED_MODULE_9__["logger"].log("loadSource:" + loadingSource);

    if (media && loadedSource && loadedSource !== loadingSource && this.bufferController.hasSourceTypes()) {
      this.detachMedia();
      this.attachMedia(media);
    } // when attaching to a source URL, trigger a playlist load


    this.trigger(_events__WEBPACK_IMPORTED_MODULE_12__["Events"].MANIFEST_LOADING, {
      url: url
    });
  }
  /**
   * Start loading data from the stream source.
   * Depending on default config, client starts loading automatically when a source is set.
   *
   * @param {number} startPosition Set the start position to stream from
   * @default -1 None (from earliest point)
   */
  ;

  _proto.startLoad = function startLoad(startPosition) {
    if (startPosition === void 0) {
      startPosition = -1;
    }

    _utils_logger__WEBPACK_IMPORTED_MODULE_9__["logger"].log("startLoad(" + startPosition + ")");
    this.networkControllers.forEach(function (controller) {
      controller.startLoad(startPosition);
    });
  }
  /**
   * Stop loading of any stream data.
   */
  ;

  _proto.stopLoad = function stopLoad() {
    _utils_logger__WEBPACK_IMPORTED_MODULE_9__["logger"].log('stopLoad');
    this.networkControllers.forEach(function (controller) {
      controller.stopLoad();
    });
  }
  /**
   * Swap through possible audio codecs in the stream (for example to switch from stereo to 5.1)
   */
  ;

  _proto.swapAudioCodec = function swapAudioCodec() {
    _utils_logger__WEBPACK_IMPORTED_MODULE_9__["logger"].log('swapAudioCodec');
    this.streamController.swapAudioCodec();
  }
  /**
   * When the media-element fails, this allows to detach and then re-attach it
   * as one call (convenience method).
   *
   * Automatic recovery of media-errors by this process is configurable.
   */
  ;

  _proto.recoverMediaError = function recoverMediaError() {
    _utils_logger__WEBPACK_IMPORTED_MODULE_9__["logger"].log('recoverMediaError');
    var media = this._media;
    this.detachMedia();

    if (media) {
      this.attachMedia(media);
    }
  };

  _proto.removeLevel = function removeLevel(levelIndex, urlId) {
    if (urlId === void 0) {
      urlId = 0;
    }

    this.levelController.removeLevel(levelIndex, urlId);
  }
  /**
   * @type {Level[]}
   */
  ;

  _createClass(Hls, [{
    key: "levels",
    get: function get() {
      var levels = this.levelController.levels;
      return levels ? levels : [];
    }
    /**
     * Index of quality level currently played
     * @type {number}
     */

  }, {
    key: "currentLevel",
    get: function get() {
      return this.streamController.currentLevel;
    }
    /**
     * Set quality level index immediately .
     * This will flush the current buffer to replace the quality asap.
     * That means playback will interrupt at least shortly to re-buffer and re-sync eventually.
     * @type {number} -1 for automatic level selection
     */
    ,
    set: function set(newLevel) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_9__["logger"].log("set currentLevel:" + newLevel);
      this.loadLevel = newLevel;
      this.abrController.clearTimer();
      this.streamController.immediateLevelSwitch();
    }
    /**
     * Index of next quality level loaded as scheduled by stream controller.
     * @type {number}
     */

  }, {
    key: "nextLevel",
    get: function get() {
      return this.streamController.nextLevel;
    }
    /**
     * Set quality level index for next loaded data.
     * This will switch the video quality asap, without interrupting playback.
     * May abort current loading of data, and flush parts of buffer (outside currently played fragment region).
     * @type {number} -1 for automatic level selection
     */
    ,
    set: function set(newLevel) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_9__["logger"].log("set nextLevel:" + newLevel);
      this.levelController.manualLevel = newLevel;
      this.streamController.nextLevelSwitch();
    }
    /**
     * Return the quality level of the currently or last (of none is loaded currently) segment
     * @type {number}
     */

  }, {
    key: "loadLevel",
    get: function get() {
      return this.levelController.level;
    }
    /**
     * Set quality level index for next loaded data in a conservative way.
     * This will switch the quality without flushing, but interrupt current loading.
     * Thus the moment when the quality switch will appear in effect will only be after the already existing buffer.
     * @type {number} newLevel -1 for automatic level selection
     */
    ,
    set: function set(newLevel) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_9__["logger"].log("set loadLevel:" + newLevel);
      this.levelController.manualLevel = newLevel;
    }
    /**
     * get next quality level loaded
     * @type {number}
     */

  }, {
    key: "nextLoadLevel",
    get: function get() {
      return this.levelController.nextLoadLevel;
    }
    /**
     * Set quality level of next loaded segment in a fully "non-destructive" way.
     * Same as `loadLevel` but will wait for next switch (until current loading is done).
     * @type {number} level
     */
    ,
    set: function set(level) {
      this.levelController.nextLoadLevel = level;
    }
    /**
     * Return "first level": like a default level, if not set,
     * falls back to index of first level referenced in manifest
     * @type {number}
     */

  }, {
    key: "firstLevel",
    get: function get() {
      return Math.max(this.levelController.firstLevel, this.minAutoLevel);
    }
    /**
     * Sets "first-level", see getter.
     * @type {number}
     */
    ,
    set: function set(newLevel) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_9__["logger"].log("set firstLevel:" + newLevel);
      this.levelController.firstLevel = newLevel;
    }
    /**
     * Return start level (level of first fragment that will be played back)
     * if not overrided by user, first level appearing in manifest will be used as start level
     * if -1 : automatic start level selection, playback will start from level matching download bandwidth
     * (determined from download of first segment)
     * @type {number}
     */

  }, {
    key: "startLevel",
    get: function get() {
      return this.levelController.startLevel;
    }
    /**
     * set  start level (level of first fragment that will be played back)
     * if not overrided by user, first level appearing in manifest will be used as start level
     * if -1 : automatic start level selection, playback will start from level matching download bandwidth
     * (determined from download of first segment)
     * @type {number} newLevel
     */
    ,
    set: function set(newLevel) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_9__["logger"].log("set startLevel:" + newLevel); // if not in automatic start level detection, ensure startLevel is greater than minAutoLevel

      if (newLevel !== -1) {
        newLevel = Math.max(newLevel, this.minAutoLevel);
      }

      this.levelController.startLevel = newLevel;
    }
    /**
     * Get the current setting for capLevelToPlayerSize
     *
     * @type {boolean}
     */

  }, {
    key: "capLevelToPlayerSize",
    get: function get() {
      return this.config.capLevelToPlayerSize;
    }
    /**
     * set  dynamically set capLevelToPlayerSize against (`CapLevelController`)
     *
     * @type {boolean}
     */
    ,
    set: function set(shouldStartCapping) {
      var newCapLevelToPlayerSize = !!shouldStartCapping;

      if (newCapLevelToPlayerSize !== this.config.capLevelToPlayerSize) {
        if (newCapLevelToPlayerSize) {
          this.capLevelController.startCapping(); // If capping occurs, nextLevelSwitch will happen based on size.
        } else {
          this.capLevelController.stopCapping();
          this.autoLevelCapping = -1;
          this.streamController.nextLevelSwitch(); // Now we're uncapped, get the next level asap.
        }

        this.config.capLevelToPlayerSize = newCapLevelToPlayerSize;
      }
    }
    /**
     * Capping/max level value that should be used by automatic level selection algorithm (`ABRController`)
     * @type {number}
     */

  }, {
    key: "autoLevelCapping",
    get: function get() {
      return this._autoLevelCapping;
    }
    /**
     * get bandwidth estimate
     * @type {number}
     */
    ,
    set:
    /**
     * Capping/max level value that should be used by automatic level selection algorithm (`ABRController`)
     * @type {number}
     */
    function set(newLevel) {
      if (this._autoLevelCapping !== newLevel) {
        _utils_logger__WEBPACK_IMPORTED_MODULE_9__["logger"].log("set autoLevelCapping:" + newLevel);
        this._autoLevelCapping = newLevel;
      }
    }
    /**
     * True when automatic level selection enabled
     * @type {boolean}
     */

  }, {
    key: "bandwidthEstimate",
    get: function get() {
      var bwEstimator = this.abrController.bwEstimator;

      if (!bwEstimator) {
        return NaN;
      }

      return bwEstimator.getEstimate();
    }
  }, {
    key: "autoLevelEnabled",
    get: function get() {
      return this.levelController.manualLevel === -1;
    }
    /**
     * Level set manually (if any)
     * @type {number}
     */

  }, {
    key: "manualLevel",
    get: function get() {
      return this.levelController.manualLevel;
    }
    /**
     * min level selectable in auto mode according to config.minAutoBitrate
     * @type {number}
     */

  }, {
    key: "minAutoLevel",
    get: function get() {
      var levels = this.levels,
          minAutoBitrate = this.config.minAutoBitrate;
      if (!levels) return 0;
      var len = levels.length;

      for (var i = 0; i < len; i++) {
        if (levels[i].maxBitrate > minAutoBitrate) {
          return i;
        }
      }

      return 0;
    }
    /**
     * max level selectable in auto mode according to autoLevelCapping
     * @type {number}
     */

  }, {
    key: "maxAutoLevel",
    get: function get() {
      var levels = this.levels,
          autoLevelCapping = this.autoLevelCapping;
      var maxAutoLevel;

      if (autoLevelCapping === -1 && levels && levels.length) {
        maxAutoLevel = levels.length - 1;
      } else {
        maxAutoLevel = autoLevelCapping;
      }

      return maxAutoLevel;
    }
    /**
     * next automatically selected quality level
     * @type {number}
     */

  }, {
    key: "nextAutoLevel",
    get: function get() {
      // ensure next auto level is between  min and max auto level
      return Math.min(Math.max(this.abrController.nextAutoLevel, this.minAutoLevel), this.maxAutoLevel);
    }
    /**
     * this setter is used to force next auto level.
     * this is useful to force a switch down in auto mode:
     * in case of load error on level N, hls.js can set nextAutoLevel to N-1 for example)
     * forced value is valid for one fragment. upon succesful frag loading at forced level,
     * this value will be resetted to -1 by ABR controller.
     * @type {number}
     */
    ,
    set: function set(nextLevel) {
      this.abrController.nextAutoLevel = Math.max(this.minAutoLevel, nextLevel);
    }
    /**
     * @type {AudioTrack[]}
     */

  }, {
    key: "audioTracks",
    get: function get() {
      var audioTrackController = this.audioTrackController;
      return audioTrackController ? audioTrackController.audioTracks : [];
    }
    /**
     * index of the selected audio track (index in audio track lists)
     * @type {number}
     */

  }, {
    key: "audioTrack",
    get: function get() {
      var audioTrackController = this.audioTrackController;
      return audioTrackController ? audioTrackController.audioTrack : -1;
    }
    /**
     * selects an audio track, based on its index in audio track lists
     * @type {number}
     */
    ,
    set: function set(audioTrackId) {
      var audioTrackController = this.audioTrackController;

      if (audioTrackController) {
        audioTrackController.audioTrack = audioTrackId;
      }
    }
    /**
     * get alternate subtitle tracks list from playlist
     * @type {MediaPlaylist[]}
     */

  }, {
    key: "subtitleTracks",
    get: function get() {
      var subtitleTrackController = this.subtitleTrackController;
      return subtitleTrackController ? subtitleTrackController.subtitleTracks : [];
    }
    /**
     * index of the selected subtitle track (index in subtitle track lists)
     * @type {number}
     */

  }, {
    key: "subtitleTrack",
    get: function get() {
      var subtitleTrackController = this.subtitleTrackController;
      return subtitleTrackController ? subtitleTrackController.subtitleTrack : -1;
    },
    set:
    /**
     * select an subtitle track, based on its index in subtitle track lists
     * @type {number}
     */
    function set(subtitleTrackId) {
      var subtitleTrackController = this.subtitleTrackController;

      if (subtitleTrackController) {
        subtitleTrackController.subtitleTrack = subtitleTrackId;
      }
    }
    /**
     * @type {boolean}
     */

  }, {
    key: "media",
    get: function get() {
      return this._media;
    }
  }, {
    key: "subtitleDisplay",
    get: function get() {
      var subtitleTrackController = this.subtitleTrackController;
      return subtitleTrackController ? subtitleTrackController.subtitleDisplay : false;
    }
    /**
     * Enable/disable subtitle display rendering
     * @type {boolean}
     */
    ,
    set: function set(value) {
      var subtitleTrackController = this.subtitleTrackController;

      if (subtitleTrackController) {
        subtitleTrackController.subtitleDisplay = value;
      }
    }
    /**
     * get mode for Low-Latency HLS loading
     * @type {boolean}
     */

  }, {
    key: "lowLatencyMode",
    get: function get() {
      return this.config.lowLatencyMode;
    }
    /**
     * Enable/disable Low-Latency HLS part playlist and segment loading, and start live streams at playlist PART-HOLD-BACK rather than HOLD-BACK.
     * @type {boolean}
     */
    ,
    set: function set(mode) {
      this.config.lowLatencyMode = mode;
    }
    /**
     * position (in seconds) of live sync point (ie edge of live position minus safety delay defined by ```hls.config.liveSyncDuration```)
     * @type {number}
     */

  }, {
    key: "liveSyncPosition",
    get: function get() {
      return this.latencyController.liveSyncPosition;
    }
    /**
     * estimated position (in seconds) of live edge (ie edge of live playlist plus time sync playlist advanced)
     * returns 0 before first playlist is loaded
     * @type {number}
     */

  }, {
    key: "latency",
    get: function get() {
      return this.latencyController.latency;
    }
    /**
     * maximum distance from the edge before the player seeks forward to ```hls.liveSyncPosition```
     * configured using ```liveMaxLatencyDurationCount``` (multiple of target duration) or ```liveMaxLatencyDuration```
     * returns 0 before first playlist is loaded
     * @type {number}
     */

  }, {
    key: "maxLatency",
    get: function get() {
      return this.latencyController.maxLatency;
    }
    /**
     * target distance from the edge as calculated by the latency controller
     * @type {number}
     */

  }, {
    key: "targetLatency",
    get: function get() {
      return this.latencyController.targetLatency;
    }
    /**
     * the rate at which the edge of the current live playlist is advancing or 1 if there is none
     * @type {number}
     */

  }, {
    key: "drift",
    get: function get() {
      return this.latencyController.drift;
    }
    /**
     * set to true when startLoad is called before MANIFEST_PARSED event
     * @type {boolean}
     */

  }, {
    key: "forceStartLoad",
    get: function get() {
      return this.streamController.forceStartLoad;
    }
  }], [{
    key: "version",
    get: function get() {
      return "1.1.2";
    }
  }, {
    key: "Events",
    get: function get() {
      return _events__WEBPACK_IMPORTED_MODULE_12__["Events"];
    }
  }, {
    key: "ErrorTypes",
    get: function get() {
      return _errors__WEBPACK_IMPORTED_MODULE_13__["ErrorTypes"];
    }
  }, {
    key: "ErrorDetails",
    get: function get() {
      return _errors__WEBPACK_IMPORTED_MODULE_13__["ErrorDetails"];
    }
  }, {
    key: "DefaultConfig",
    get: function get() {
      if (!Hls.defaultConfig) {
        return _config__WEBPACK_IMPORTED_MODULE_10__["hlsDefaultConfig"];
      }

      return Hls.defaultConfig;
    }
    /**
     * @type {HlsConfig}
     */
    ,
    set: function set(defaultConfig) {
      Hls.defaultConfig = defaultConfig;
    }
  }]);

  return Hls;
}();

Hls.defaultConfig = void 0;


/***/ }),

/***/ "./src/is-supported.ts":
/*!*****************************!*\
  !*** ./src/is-supported.ts ***!
  \*****************************/
/*! exports provided: isSupported, changeTypeSupported */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "isSupported", function() { return isSupported; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "changeTypeSupported", function() { return changeTypeSupported; });
/* harmony import */ var _utils_mediasource_helper__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./utils/mediasource-helper */ "./src/utils/mediasource-helper.ts");


function getSourceBuffer() {
  return self.SourceBuffer || self.WebKitSourceBuffer;
}

function isSupported() {
  var mediaSource = Object(_utils_mediasource_helper__WEBPACK_IMPORTED_MODULE_0__["getMediaSource"])();

  if (!mediaSource) {
    return false;
  }

  var sourceBuffer = getSourceBuffer();
  var isTypeSupported = mediaSource && typeof mediaSource.isTypeSupported === 'function' && mediaSource.isTypeSupported('video/mp4; codecs="avc1.42E01E,mp4a.40.2"'); // if SourceBuffer is exposed ensure its API is valid
  // safari and old version of Chrome doe not expose SourceBuffer globally so checking SourceBuffer.prototype is impossible

  var sourceBufferValidAPI = !sourceBuffer || sourceBuffer.prototype && typeof sourceBuffer.prototype.appendBuffer === 'function' && typeof sourceBuffer.prototype.remove === 'function';
  return !!isTypeSupported && !!sourceBufferValidAPI;
}
function changeTypeSupported() {
  var _sourceBuffer$prototy;

  var sourceBuffer = getSourceBuffer();
  return typeof (sourceBuffer === null || sourceBuffer === void 0 ? void 0 : (_sourceBuffer$prototy = sourceBuffer.prototype) === null || _sourceBuffer$prototy === void 0 ? void 0 : _sourceBuffer$prototy.changeType) === 'function';
}

/***/ }),

/***/ "./src/loader/fragment-loader.ts":
/*!***************************************!*\
  !*** ./src/loader/fragment-loader.ts ***!
  \***************************************/
/*! exports provided: default, LoadError */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "default", function() { return FragmentLoader; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "LoadError", function() { return LoadError; });
/* harmony import */ var _home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./src/polyfills/number */ "./src/polyfills/number.ts");
/* harmony import */ var _errors__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../errors */ "./src/errors.ts");



function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

function _wrapNativeSuper(Class) { var _cache = typeof Map === "function" ? new Map() : undefined; _wrapNativeSuper = function _wrapNativeSuper(Class) { if (Class === null || !_isNativeFunction(Class)) return Class; if (typeof Class !== "function") { throw new TypeError("Super expression must either be null or a function"); } if (typeof _cache !== "undefined") { if (_cache.has(Class)) return _cache.get(Class); _cache.set(Class, Wrapper); } function Wrapper() { return _construct(Class, arguments, _getPrototypeOf(this).constructor); } Wrapper.prototype = Object.create(Class.prototype, { constructor: { value: Wrapper, enumerable: false, writable: true, configurable: true } }); return _setPrototypeOf(Wrapper, Class); }; return _wrapNativeSuper(Class); }

function _construct(Parent, args, Class) { if (_isNativeReflectConstruct()) { _construct = Reflect.construct; } else { _construct = function _construct(Parent, args, Class) { var a = [null]; a.push.apply(a, args); var Constructor = Function.bind.apply(Parent, a); var instance = new Constructor(); if (Class) _setPrototypeOf(instance, Class.prototype); return instance; }; } return _construct.apply(null, arguments); }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

function _isNativeFunction(fn) { return Function.toString.call(fn).indexOf("[native code]") !== -1; }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }


var MIN_CHUNK_SIZE = Math.pow(2, 17); // 128kb

var FragmentLoader = /*#__PURE__*/function () {
  function FragmentLoader(config) {
    this.config = void 0;
    this.loader = null;
    this.partLoadTimeout = -1;
    this.config = config;
  }

  var _proto = FragmentLoader.prototype;

  _proto.destroy = function destroy() {
    if (this.loader) {
      this.loader.destroy();
      this.loader = null;
    }
  };

  _proto.abort = function abort() {
    if (this.loader) {
      // Abort the loader for current fragment. Only one may load at any given time
      this.loader.abort();
    }
  };

  _proto.load = function load(frag, _onProgress) {
    var _this = this;

    var url = frag.url;

    if (!url) {
      return Promise.reject(new LoadError({
        type: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorTypes"].NETWORK_ERROR,
        details: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorDetails"].FRAG_LOAD_ERROR,
        fatal: false,
        frag: frag,
        networkDetails: null
      }, "Fragment does not have a " + (url ? 'part list' : 'url')));
    }

    this.abort();
    var config = this.config;
    var FragmentILoader = config.fLoader;
    var DefaultILoader = config.loader;
    return new Promise(function (resolve, reject) {
      if (_this.loader) {
        _this.loader.destroy();
      }

      var loader = _this.loader = frag.loader = FragmentILoader ? new FragmentILoader(config) : new DefaultILoader(config);
      var loaderContext = createLoaderContext(frag);
      var loaderConfig = {
        timeout: config.fragLoadingTimeOut,
        maxRetry: 0,
        retryDelay: 0,
        maxRetryDelay: config.fragLoadingMaxRetryTimeout,
        highWaterMark: MIN_CHUNK_SIZE
      }; // Assign frag stats to the loader's stats reference

      frag.stats = loader.stats;
      loader.load(loaderContext, loaderConfig, {
        onSuccess: function onSuccess(response, stats, context, networkDetails) {
          _this.resetLoader(frag, loader);

          resolve({
            frag: frag,
            part: null,
            payload: response.data,
            networkDetails: networkDetails
          });
        },
        onError: function onError(response, context, networkDetails) {
          _this.resetLoader(frag, loader);

          reject(new LoadError({
            type: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorTypes"].NETWORK_ERROR,
            details: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorDetails"].FRAG_LOAD_ERROR,
            fatal: false,
            frag: frag,
            response: response,
            networkDetails: networkDetails
          }));
        },
        onAbort: function onAbort(stats, context, networkDetails) {
          _this.resetLoader(frag, loader);

          reject(new LoadError({
            type: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorTypes"].NETWORK_ERROR,
            details: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorDetails"].INTERNAL_ABORTED,
            fatal: false,
            frag: frag,
            networkDetails: networkDetails
          }));
        },
        onTimeout: function onTimeout(response, context, networkDetails) {
          _this.resetLoader(frag, loader);

          reject(new LoadError({
            type: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorTypes"].NETWORK_ERROR,
            details: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorDetails"].FRAG_LOAD_TIMEOUT,
            fatal: false,
            frag: frag,
            networkDetails: networkDetails
          }));
        },
        onProgress: function onProgress(stats, context, data, networkDetails) {
          if (_onProgress) {
            _onProgress({
              frag: frag,
              part: null,
              payload: data,
              networkDetails: networkDetails
            });
          }
        }
      });
    });
  };

  _proto.loadPart = function loadPart(frag, part, onProgress) {
    var _this2 = this;

    this.abort();
    var config = this.config;
    var FragmentILoader = config.fLoader;
    var DefaultILoader = config.loader;
    return new Promise(function (resolve, reject) {
      if (_this2.loader) {
        _this2.loader.destroy();
      }

      var loader = _this2.loader = frag.loader = FragmentILoader ? new FragmentILoader(config) : new DefaultILoader(config);
      var loaderContext = createLoaderContext(frag, part);
      var loaderConfig = {
        timeout: config.fragLoadingTimeOut,
        maxRetry: 0,
        retryDelay: 0,
        maxRetryDelay: config.fragLoadingMaxRetryTimeout,
        highWaterMark: MIN_CHUNK_SIZE
      }; // Assign part stats to the loader's stats reference

      part.stats = loader.stats;
      loader.load(loaderContext, loaderConfig, {
        onSuccess: function onSuccess(response, stats, context, networkDetails) {
          _this2.resetLoader(frag, loader);

          _this2.updateStatsFromPart(frag, part);

          var partLoadedData = {
            frag: frag,
            part: part,
            payload: response.data,
            networkDetails: networkDetails
          };
          onProgress(partLoadedData);
          resolve(partLoadedData);
        },
        onError: function onError(response, context, networkDetails) {
          _this2.resetLoader(frag, loader);

          reject(new LoadError({
            type: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorTypes"].NETWORK_ERROR,
            details: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorDetails"].FRAG_LOAD_ERROR,
            fatal: false,
            frag: frag,
            part: part,
            response: response,
            networkDetails: networkDetails
          }));
        },
        onAbort: function onAbort(stats, context, networkDetails) {
          frag.stats.aborted = part.stats.aborted;

          _this2.resetLoader(frag, loader);

          reject(new LoadError({
            type: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorTypes"].NETWORK_ERROR,
            details: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorDetails"].INTERNAL_ABORTED,
            fatal: false,
            frag: frag,
            part: part,
            networkDetails: networkDetails
          }));
        },
        onTimeout: function onTimeout(response, context, networkDetails) {
          _this2.resetLoader(frag, loader);

          reject(new LoadError({
            type: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorTypes"].NETWORK_ERROR,
            details: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorDetails"].FRAG_LOAD_TIMEOUT,
            fatal: false,
            frag: frag,
            part: part,
            networkDetails: networkDetails
          }));
        }
      });
    });
  };

  _proto.updateStatsFromPart = function updateStatsFromPart(frag, part) {
    var fragStats = frag.stats;
    var partStats = part.stats;
    var partTotal = partStats.total;
    fragStats.loaded += partStats.loaded;

    if (partTotal) {
      var estTotalParts = Math.round(frag.duration / part.duration);
      var estLoadedParts = Math.min(Math.round(fragStats.loaded / partTotal), estTotalParts);
      var estRemainingParts = estTotalParts - estLoadedParts;
      var estRemainingBytes = estRemainingParts * Math.round(fragStats.loaded / estLoadedParts);
      fragStats.total = fragStats.loaded + estRemainingBytes;
    } else {
      fragStats.total = Math.max(fragStats.loaded, fragStats.total);
    }

    var fragLoading = fragStats.loading;
    var partLoading = partStats.loading;

    if (fragLoading.start) {
      // add to fragment loader latency
      fragLoading.first += partLoading.first - partLoading.start;
    } else {
      fragLoading.start = partLoading.start;
      fragLoading.first = partLoading.first;
    }

    fragLoading.end = partLoading.end;
  };

  _proto.resetLoader = function resetLoader(frag, loader) {
    frag.loader = null;

    if (this.loader === loader) {
      self.clearTimeout(this.partLoadTimeout);
      this.loader = null;
    }

    loader.destroy();
  };

  return FragmentLoader;
}();



function createLoaderContext(frag, part) {
  if (part === void 0) {
    part = null;
  }

  var segment = part || frag;
  var loaderContext = {
    frag: frag,
    part: part,
    responseType: 'arraybuffer',
    url: segment.url,
    headers: {},
    rangeStart: 0,
    rangeEnd: 0
  };
  var start = segment.byteRangeStartOffset;
  var end = segment.byteRangeEndOffset;

  if (Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(start) && Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(end)) {
    loaderContext.rangeStart = start;
    loaderContext.rangeEnd = end;
  }

  return loaderContext;
}

var LoadError = /*#__PURE__*/function (_Error) {
  _inheritsLoose(LoadError, _Error);

  function LoadError(data) {
    var _this3;

    for (var _len = arguments.length, params = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
      params[_key - 1] = arguments[_key];
    }

    _this3 = _Error.call.apply(_Error, [this].concat(params)) || this;
    _this3.data = void 0;
    _this3.data = data;
    return _this3;
  }

  return LoadError;
}( /*#__PURE__*/_wrapNativeSuper(Error));

/***/ }),

/***/ "./src/loader/fragment.ts":
/*!********************************!*\
  !*** ./src/loader/fragment.ts ***!
  \********************************/
/*! exports provided: ElementaryStreamTypes, BaseSegment, Fragment, Part */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "ElementaryStreamTypes", function() { return ElementaryStreamTypes; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "BaseSegment", function() { return BaseSegment; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "Fragment", function() { return Fragment; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "Part", function() { return Part; });
/* harmony import */ var _home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./src/polyfills/number */ "./src/polyfills/number.ts");
/* harmony import */ var url_toolkit__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! url-toolkit */ "./node_modules/url-toolkit/src/url-toolkit.js");
/* harmony import */ var url_toolkit__WEBPACK_IMPORTED_MODULE_1___default = /*#__PURE__*/__webpack_require__.n(url_toolkit__WEBPACK_IMPORTED_MODULE_1__);
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../utils/logger */ "./src/utils/logger.ts");
/* harmony import */ var _level_key__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./level-key */ "./src/loader/level-key.ts");
/* harmony import */ var _load_stats__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ./load-stats */ "./src/loader/load-stats.ts");



function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }





var ElementaryStreamTypes;

(function (ElementaryStreamTypes) {
  ElementaryStreamTypes["AUDIO"] = "audio";
  ElementaryStreamTypes["VIDEO"] = "video";
  ElementaryStreamTypes["AUDIOVIDEO"] = "audiovideo";
})(ElementaryStreamTypes || (ElementaryStreamTypes = {}));

var BaseSegment = /*#__PURE__*/function () {
  // baseurl is the URL to the playlist
  // relurl is the portion of the URL that comes from inside the playlist.
  // Holds the types of data this fragment supports
  function BaseSegment(baseurl) {
    var _this$elementaryStrea;

    this._byteRange = null;
    this._url = null;
    this.baseurl = void 0;
    this.relurl = void 0;
    this.elementaryStreams = (_this$elementaryStrea = {}, _this$elementaryStrea[ElementaryStreamTypes.AUDIO] = null, _this$elementaryStrea[ElementaryStreamTypes.VIDEO] = null, _this$elementaryStrea[ElementaryStreamTypes.AUDIOVIDEO] = null, _this$elementaryStrea);
    this.baseurl = baseurl;
  } // setByteRange converts a EXT-X-BYTERANGE attribute into a two element array


  var _proto = BaseSegment.prototype;

  _proto.setByteRange = function setByteRange(value, previous) {
    var params = value.split('@', 2);
    var byteRange = [];

    if (params.length === 1) {
      byteRange[0] = previous ? previous.byteRangeEndOffset : 0;
    } else {
      byteRange[0] = parseInt(params[1]);
    }

    byteRange[1] = parseInt(params[0]) + byteRange[0];
    this._byteRange = byteRange;
  };

  _createClass(BaseSegment, [{
    key: "byteRange",
    get: function get() {
      if (!this._byteRange) {
        return [];
      }

      return this._byteRange;
    }
  }, {
    key: "byteRangeStartOffset",
    get: function get() {
      return this.byteRange[0];
    }
  }, {
    key: "byteRangeEndOffset",
    get: function get() {
      return this.byteRange[1];
    }
  }, {
    key: "url",
    get: function get() {
      if (!this._url && this.baseurl && this.relurl) {
        this._url = Object(url_toolkit__WEBPACK_IMPORTED_MODULE_1__["buildAbsoluteURL"])(this.baseurl, this.relurl, {
          alwaysNormalize: true
        });
      }

      return this._url || '';
    },
    set: function set(value) {
      this._url = value;
    }
  }]);

  return BaseSegment;
}();
var Fragment = /*#__PURE__*/function (_BaseSegment) {
  _inheritsLoose(Fragment, _BaseSegment);

  // EXTINF has to be present for a m38 to be considered valid
  // sn notates the sequence number for a segment, and if set to a string can be 'initSegment'
  // levelkey is the EXT-X-KEY that applies to this segment for decryption
  // core difference from the private field _decryptdata is the lack of the initialized IV
  // _decryptdata will set the IV for this segment based on the segment number in the fragment
  // A string representing the fragment type
  // A reference to the loader. Set while the fragment is loading, and removed afterwards. Used to abort fragment loading
  // The level/track index to which the fragment belongs
  // The continuity counter of the fragment
  // The starting Presentation Time Stamp (PTS) of the fragment. Set after transmux complete.
  // The ending Presentation Time Stamp (PTS) of the fragment. Set after transmux complete.
  // The latest Presentation Time Stamp (PTS) appended to the buffer.
  // The starting Decode Time Stamp (DTS) of the fragment. Set after transmux complete.
  // The ending Decode Time Stamp (DTS) of the fragment. Set after transmux complete.
  // The start time of the fragment, as listed in the manifest. Updated after transmux complete.
  // Set by `updateFragPTSDTS` in level-helper
  // The maximum starting Presentation Time Stamp (audio/video PTS) of the fragment. Set after transmux complete.
  // The minimum ending Presentation Time Stamp (audio/video PTS) of the fragment. Set after transmux complete.
  // Load/parse timing information
  // A flag indicating whether the segment was downloaded in order to test bitrate, and was not buffered
  // #EXTINF  segment title
  // The Media Initialization Section for this segment
  function Fragment(type, baseurl) {
    var _this;

    _this = _BaseSegment.call(this, baseurl) || this;
    _this._decryptdata = null;
    _this.rawProgramDateTime = null;
    _this.programDateTime = null;
    _this.tagList = [];
    _this.duration = 0;
    _this.sn = 0;
    _this.levelkey = void 0;
    _this.type = void 0;
    _this.loader = null;
    _this.level = -1;
    _this.cc = 0;
    _this.startPTS = void 0;
    _this.endPTS = void 0;
    _this.appendedPTS = void 0;
    _this.startDTS = void 0;
    _this.endDTS = void 0;
    _this.start = 0;
    _this.deltaPTS = void 0;
    _this.maxStartPTS = void 0;
    _this.minEndPTS = void 0;
    _this.stats = new _load_stats__WEBPACK_IMPORTED_MODULE_4__["LoadStats"]();
    _this.urlId = 0;
    _this.data = void 0;
    _this.bitrateTest = false;
    _this.title = null;
    _this.initSegment = null;
    _this.type = type;
    return _this;
  }

  var _proto2 = Fragment.prototype;

  /**
   * Utility method for parseLevelPlaylist to create an initialization vector for a given segment
   * @param {number} segmentNumber - segment number to generate IV with
   * @returns {Uint8Array}
   */
  _proto2.createInitializationVector = function createInitializationVector(segmentNumber) {
    var uint8View = new Uint8Array(16);

    for (var i = 12; i < 16; i++) {
      uint8View[i] = segmentNumber >> 8 * (15 - i) & 0xff;
    }

    return uint8View;
  }
  /**
   * Utility method for parseLevelPlaylist to get a fragment's decryption data from the currently parsed encryption key data
   * @param levelkey - a playlist's encryption info
   * @param segmentNumber - the fragment's segment number
   * @returns {LevelKey} - an object to be applied as a fragment's decryptdata
   */
  ;

  _proto2.setDecryptDataFromLevelKey = function setDecryptDataFromLevelKey(levelkey, segmentNumber) {
    var decryptdata = levelkey;

    if ((levelkey === null || levelkey === void 0 ? void 0 : levelkey.method) === 'AES-128' && levelkey.uri && !levelkey.iv) {
      decryptdata = _level_key__WEBPACK_IMPORTED_MODULE_3__["LevelKey"].fromURI(levelkey.uri);
      decryptdata.method = levelkey.method;
      decryptdata.iv = this.createInitializationVector(segmentNumber);
      decryptdata.keyFormat = 'identity';
    }

    return decryptdata;
  };

  _proto2.setElementaryStreamInfo = function setElementaryStreamInfo(type, startPTS, endPTS, startDTS, endDTS, partial) {
    if (partial === void 0) {
      partial = false;
    }

    var elementaryStreams = this.elementaryStreams;
    var info = elementaryStreams[type];

    if (!info) {
      elementaryStreams[type] = {
        startPTS: startPTS,
        endPTS: endPTS,
        startDTS: startDTS,
        endDTS: endDTS,
        partial: partial
      };
      return;
    }

    info.startPTS = Math.min(info.startPTS, startPTS);
    info.endPTS = Math.max(info.endPTS, endPTS);
    info.startDTS = Math.min(info.startDTS, startDTS);
    info.endDTS = Math.max(info.endDTS, endDTS);
  };

  _proto2.clearElementaryStreamInfo = function clearElementaryStreamInfo() {
    var elementaryStreams = this.elementaryStreams;
    elementaryStreams[ElementaryStreamTypes.AUDIO] = null;
    elementaryStreams[ElementaryStreamTypes.VIDEO] = null;
    elementaryStreams[ElementaryStreamTypes.AUDIOVIDEO] = null;
  };

  _createClass(Fragment, [{
    key: "decryptdata",
    get: function get() {
      if (!this.levelkey && !this._decryptdata) {
        return null;
      }

      if (!this._decryptdata && this.levelkey) {
        var sn = this.sn;

        if (typeof sn !== 'number') {
          // We are fetching decryption data for a initialization segment
          // If the segment was encrypted with AES-128
          // It must have an IV defined. We cannot substitute the Segment Number in.
          if (this.levelkey && this.levelkey.method === 'AES-128' && !this.levelkey.iv) {
            _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].warn("missing IV for initialization segment with method=\"" + this.levelkey.method + "\" - compliance issue");
          }
          /*
          Be converted to a Number.
          'initSegment' will become NaN.
          NaN, which when converted through ToInt32() -> +0.
          ---
          Explicitly set sn to resulting value from implicit conversions 'initSegment' values for IV generation.
          */


          sn = 0;
        }

        this._decryptdata = this.setDecryptDataFromLevelKey(this.levelkey, sn);
      }

      return this._decryptdata;
    }
  }, {
    key: "end",
    get: function get() {
      return this.start + this.duration;
    }
  }, {
    key: "endProgramDateTime",
    get: function get() {
      if (this.programDateTime === null) {
        return null;
      }

      if (!Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(this.programDateTime)) {
        return null;
      }

      var duration = !Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(this.duration) ? 0 : this.duration;
      return this.programDateTime + duration * 1000;
    }
  }, {
    key: "encrypted",
    get: function get() {
      var _this$decryptdata;

      // At the m3u8-parser level we need to add support for manifest signalled keyformats
      // when we want the fragment to start reporting that it is encrypted.
      // Currently, keyFormat will only be set for identity keys
      if ((_this$decryptdata = this.decryptdata) !== null && _this$decryptdata !== void 0 && _this$decryptdata.keyFormat && this.decryptdata.uri) {
        return true;
      }

      return false;
    }
  }]);

  return Fragment;
}(BaseSegment);
var Part = /*#__PURE__*/function (_BaseSegment2) {
  _inheritsLoose(Part, _BaseSegment2);

  function Part(partAttrs, frag, baseurl, index, previous) {
    var _this2;

    _this2 = _BaseSegment2.call(this, baseurl) || this;
    _this2.fragOffset = 0;
    _this2.duration = 0;
    _this2.gap = false;
    _this2.independent = false;
    _this2.relurl = void 0;
    _this2.fragment = void 0;
    _this2.index = void 0;
    _this2.stats = new _load_stats__WEBPACK_IMPORTED_MODULE_4__["LoadStats"]();
    _this2.duration = partAttrs.decimalFloatingPoint('DURATION');
    _this2.gap = partAttrs.bool('GAP');
    _this2.independent = partAttrs.bool('INDEPENDENT');
    _this2.relurl = partAttrs.enumeratedString('URI');
    _this2.fragment = frag;
    _this2.index = index;
    var byteRange = partAttrs.enumeratedString('BYTERANGE');

    if (byteRange) {
      _this2.setByteRange(byteRange, previous);
    }

    if (previous) {
      _this2.fragOffset = previous.fragOffset + previous.duration;
    }

    return _this2;
  }

  _createClass(Part, [{
    key: "start",
    get: function get() {
      return this.fragment.start + this.fragOffset;
    }
  }, {
    key: "end",
    get: function get() {
      return this.start + this.duration;
    }
  }, {
    key: "loaded",
    get: function get() {
      var elementaryStreams = this.elementaryStreams;
      return !!(elementaryStreams.audio || elementaryStreams.video || elementaryStreams.audiovideo);
    }
  }]);

  return Part;
}(BaseSegment);

/***/ }),

/***/ "./src/loader/key-loader.ts":
/*!**********************************!*\
  !*** ./src/loader/key-loader.ts ***!
  \**********************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "default", function() { return KeyLoader; });
/* harmony import */ var _events__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../events */ "./src/events.ts");
/* harmony import */ var _errors__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../errors */ "./src/errors.ts");
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../utils/logger */ "./src/utils/logger.ts");
/*
 * Decrypt key Loader
 */




var KeyLoader = /*#__PURE__*/function () {
  function KeyLoader(hls) {
    this.hls = void 0;
    this.loaders = {};
    this.decryptkey = null;
    this.decrypturl = null;
    this.hls = hls;

    this._registerListeners();
  }

  var _proto = KeyLoader.prototype;

  _proto._registerListeners = function _registerListeners() {
    this.hls.on(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].KEY_LOADING, this.onKeyLoading, this);
  };

  _proto._unregisterListeners = function _unregisterListeners() {
    this.hls.off(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].KEY_LOADING, this.onKeyLoading);
  };

  _proto.destroy = function destroy() {
    this._unregisterListeners();

    for (var loaderName in this.loaders) {
      var loader = this.loaders[loaderName];

      if (loader) {
        loader.destroy();
      }
    }

    this.loaders = {};
  };

  _proto.onKeyLoading = function onKeyLoading(event, data) {
    var frag = data.frag;
    var type = frag.type;
    var loader = this.loaders[type];

    if (!frag.decryptdata) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].warn('Missing decryption data on fragment in onKeyLoading');
      return;
    } // Load the key if the uri is different from previous one, or if the decrypt key has not yet been retrieved


    var uri = frag.decryptdata.uri;

    if (uri !== this.decrypturl || this.decryptkey === null) {
      var config = this.hls.config;

      if (loader) {
        _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].warn("abort previous key loader for type:" + type);
        loader.abort();
      }

      if (!uri) {
        _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].warn('key uri is falsy');
        return;
      }

      var Loader = config.loader;
      var fragLoader = frag.loader = this.loaders[type] = new Loader(config);
      this.decrypturl = uri;
      this.decryptkey = null;
      var loaderContext = {
        url: uri,
        frag: frag,
        responseType: 'arraybuffer'
      }; // maxRetry is 0 so that instead of retrying the same key on the same variant multiple times,
      // key-loader will trigger an error and rely on stream-controller to handle retry logic.
      // this will also align retry logic with fragment-loader

      var loaderConfig = {
        timeout: config.fragLoadingTimeOut,
        maxRetry: 0,
        retryDelay: config.fragLoadingRetryDelay,
        maxRetryDelay: config.fragLoadingMaxRetryTimeout,
        highWaterMark: 0
      };
      var loaderCallbacks = {
        onSuccess: this.loadsuccess.bind(this),
        onError: this.loaderror.bind(this),
        onTimeout: this.loadtimeout.bind(this)
      };
      fragLoader.load(loaderContext, loaderConfig, loaderCallbacks);
    } else if (this.decryptkey) {
      // Return the key if it's already been loaded
      frag.decryptdata.key = this.decryptkey;
      this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].KEY_LOADED, {
        frag: frag
      });
    }
  };

  _proto.loadsuccess = function loadsuccess(response, stats, context) {
    var frag = context.frag;

    if (!frag.decryptdata) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_2__["logger"].error('after key load, decryptdata unset');
      return;
    }

    this.decryptkey = frag.decryptdata.key = new Uint8Array(response.data); // detach fragment loader on load success

    frag.loader = null;
    delete this.loaders[frag.type];
    this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].KEY_LOADED, {
      frag: frag
    });
  };

  _proto.loaderror = function loaderror(response, context) {
    var frag = context.frag;
    var loader = frag.loader;

    if (loader) {
      loader.abort();
    }

    delete this.loaders[frag.type];
    this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].ERROR, {
      type: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorTypes"].NETWORK_ERROR,
      details: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorDetails"].KEY_LOAD_ERROR,
      fatal: false,
      frag: frag,
      response: response
    });
  };

  _proto.loadtimeout = function loadtimeout(stats, context) {
    var frag = context.frag;
    var loader = frag.loader;

    if (loader) {
      loader.abort();
    }

    delete this.loaders[frag.type];
    this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_0__["Events"].ERROR, {
      type: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorTypes"].NETWORK_ERROR,
      details: _errors__WEBPACK_IMPORTED_MODULE_1__["ErrorDetails"].KEY_LOAD_TIMEOUT,
      fatal: false,
      frag: frag
    });
  };

  return KeyLoader;
}();



/***/ }),

/***/ "./src/loader/level-details.ts":
/*!*************************************!*\
  !*** ./src/loader/level-details.ts ***!
  \*************************************/
/*! exports provided: LevelDetails */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "LevelDetails", function() { return LevelDetails; });
/* harmony import */ var _home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./src/polyfills/number */ "./src/polyfills/number.ts");


function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var DEFAULT_TARGET_DURATION = 10;
var LevelDetails = /*#__PURE__*/function () {
  // Manifest reload synchronization
  function LevelDetails(baseUrl) {
    this.PTSKnown = false;
    this.alignedSliding = false;
    this.averagetargetduration = void 0;
    this.endCC = 0;
    this.endSN = 0;
    this.fragments = void 0;
    this.fragmentHint = void 0;
    this.partList = null;
    this.live = true;
    this.ageHeader = 0;
    this.advancedDateTime = void 0;
    this.updated = true;
    this.advanced = true;
    this.availabilityDelay = void 0;
    this.misses = 0;
    this.needSidxRanges = false;
    this.startCC = 0;
    this.startSN = 0;
    this.startTimeOffset = null;
    this.targetduration = 0;
    this.totalduration = 0;
    this.type = null;
    this.url = void 0;
    this.m3u8 = '';
    this.version = null;
    this.canBlockReload = false;
    this.canSkipUntil = 0;
    this.canSkipDateRanges = false;
    this.skippedSegments = 0;
    this.recentlyRemovedDateranges = void 0;
    this.partHoldBack = 0;
    this.holdBack = 0;
    this.partTarget = 0;
    this.preloadHint = void 0;
    this.renditionReports = void 0;
    this.tuneInGoal = 0;
    this.deltaUpdateFailed = void 0;
    this.driftStartTime = 0;
    this.driftEndTime = 0;
    this.driftStart = 0;
    this.driftEnd = 0;
    this.fragments = [];
    this.url = baseUrl;
  }

  var _proto = LevelDetails.prototype;

  _proto.reloaded = function reloaded(previous) {
    if (!previous) {
      this.advanced = true;
      this.updated = true;
      return;
    }

    var partSnDiff = this.lastPartSn - previous.lastPartSn;
    var partIndexDiff = this.lastPartIndex - previous.lastPartIndex;
    this.updated = this.endSN !== previous.endSN || !!partIndexDiff || !!partSnDiff;
    this.advanced = this.endSN > previous.endSN || partSnDiff > 0 || partSnDiff === 0 && partIndexDiff > 0;

    if (this.updated || this.advanced) {
      this.misses = Math.floor(previous.misses * 0.6);
    } else {
      this.misses = previous.misses + 1;
    }

    this.availabilityDelay = previous.availabilityDelay;
  };

  _createClass(LevelDetails, [{
    key: "hasProgramDateTime",
    get: function get() {
      if (this.fragments.length) {
        return Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(this.fragments[this.fragments.length - 1].programDateTime);
      }

      return false;
    }
  }, {
    key: "levelTargetDuration",
    get: function get() {
      return this.averagetargetduration || this.targetduration || DEFAULT_TARGET_DURATION;
    }
  }, {
    key: "drift",
    get: function get() {
      var runTime = this.driftEndTime - this.driftStartTime;

      if (runTime > 0) {
        var runDuration = this.driftEnd - this.driftStart;
        return runDuration * 1000 / runTime;
      }

      return 1;
    }
  }, {
    key: "edge",
    get: function get() {
      return this.partEnd || this.fragmentEnd;
    }
  }, {
    key: "partEnd",
    get: function get() {
      var _this$partList;

      if ((_this$partList = this.partList) !== null && _this$partList !== void 0 && _this$partList.length) {
        return this.partList[this.partList.length - 1].end;
      }

      return this.fragmentEnd;
    }
  }, {
    key: "fragmentEnd",
    get: function get() {
      var _this$fragments;

      if ((_this$fragments = this.fragments) !== null && _this$fragments !== void 0 && _this$fragments.length) {
        return this.fragments[this.fragments.length - 1].end;
      }

      return 0;
    }
  }, {
    key: "age",
    get: function get() {
      if (this.advancedDateTime) {
        return Math.max(Date.now() - this.advancedDateTime, 0) / 1000;
      }

      return 0;
    }
  }, {
    key: "lastPartIndex",
    get: function get() {
      var _this$partList2;

      if ((_this$partList2 = this.partList) !== null && _this$partList2 !== void 0 && _this$partList2.length) {
        return this.partList[this.partList.length - 1].index;
      }

      return -1;
    }
  }, {
    key: "lastPartSn",
    get: function get() {
      var _this$partList3;

      if ((_this$partList3 = this.partList) !== null && _this$partList3 !== void 0 && _this$partList3.length) {
        return this.partList[this.partList.length - 1].fragment.sn;
      }

      return this.endSN;
    }
  }]);

  return LevelDetails;
}();

/***/ }),

/***/ "./src/loader/level-key.ts":
/*!*********************************!*\
  !*** ./src/loader/level-key.ts ***!
  \*********************************/
/*! exports provided: LevelKey */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "LevelKey", function() { return LevelKey; });
/* harmony import */ var url_toolkit__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! url-toolkit */ "./node_modules/url-toolkit/src/url-toolkit.js");
/* harmony import */ var url_toolkit__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(url_toolkit__WEBPACK_IMPORTED_MODULE_0__);
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }


var LevelKey = /*#__PURE__*/function () {
  LevelKey.fromURL = function fromURL(baseUrl, relativeUrl) {
    return new LevelKey(baseUrl, relativeUrl);
  };

  LevelKey.fromURI = function fromURI(uri) {
    return new LevelKey(uri);
  };

  function LevelKey(absoluteOrBaseURI, relativeURL) {
    this._uri = null;
    this.method = null;
    this.keyFormat = null;
    this.keyFormatVersions = null;
    this.keyID = null;
    this.key = null;
    this.iv = null;

    if (relativeURL) {
      this._uri = Object(url_toolkit__WEBPACK_IMPORTED_MODULE_0__["buildAbsoluteURL"])(absoluteOrBaseURI, relativeURL, {
        alwaysNormalize: true
      });
    } else {
      this._uri = absoluteOrBaseURI;
    }
  }

  _createClass(LevelKey, [{
    key: "uri",
    get: function get() {
      return this._uri;
    }
  }]);

  return LevelKey;
}();

/***/ }),

/***/ "./src/loader/load-stats.ts":
/*!**********************************!*\
  !*** ./src/loader/load-stats.ts ***!
  \**********************************/
/*! exports provided: LoadStats */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "LoadStats", function() { return LoadStats; });
var LoadStats = function LoadStats() {
  this.aborted = false;
  this.loaded = 0;
  this.retry = 0;
  this.total = 0;
  this.chunkCount = 0;
  this.bwEstimate = 0;
  this.loading = {
    start: 0,
    first: 0,
    end: 0
  };
  this.parsing = {
    start: 0,
    end: 0
  };
  this.buffering = {
    start: 0,
    first: 0,
    end: 0
  };
};

/***/ }),

/***/ "./src/loader/m3u8-parser.ts":
/*!***********************************!*\
  !*** ./src/loader/m3u8-parser.ts ***!
  \***********************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "default", function() { return M3U8Parser; });
/* harmony import */ var _home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./src/polyfills/number */ "./src/polyfills/number.ts");
/* harmony import */ var url_toolkit__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! url-toolkit */ "./node_modules/url-toolkit/src/url-toolkit.js");
/* harmony import */ var url_toolkit__WEBPACK_IMPORTED_MODULE_1___default = /*#__PURE__*/__webpack_require__.n(url_toolkit__WEBPACK_IMPORTED_MODULE_1__);
/* harmony import */ var _fragment__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./fragment */ "./src/loader/fragment.ts");
/* harmony import */ var _level_details__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./level-details */ "./src/loader/level-details.ts");
/* harmony import */ var _level_key__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ./level-key */ "./src/loader/level-key.ts");
/* harmony import */ var _utils_attr_list__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ../utils/attr-list */ "./src/utils/attr-list.ts");
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ../utils/logger */ "./src/utils/logger.ts");
/* harmony import */ var _utils_codecs__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ../utils/codecs */ "./src/utils/codecs.ts");











// https://regex101.com is your friend
var MASTER_PLAYLIST_REGEX = /#EXT-X-STREAM-INF:([^\r\n]*)(?:[\r\n](?:#[^\r\n]*)?)*([^\r\n]+)|#EXT-X-SESSION-DATA:([^\r\n]*)[\r\n]+/g;
var MASTER_PLAYLIST_MEDIA_REGEX = /#EXT-X-MEDIA:(.*)/g;
var LEVEL_PLAYLIST_REGEX_FAST = new RegExp([/#EXTINF:\s*(\d*(?:\.\d+)?)(?:,(.*)\s+)?/.source, // duration (#EXTINF:<duration>,<title>), group 1 => duration, group 2 => title
/(?!#) *(\S[\S ]*)/.source, // segment URI, group 3 => the URI (note newline is not eaten)
/#EXT-X-BYTERANGE:*(.+)/.source, // next segment's byterange, group 4 => range spec (x@y)
/#EXT-X-PROGRAM-DATE-TIME:(.+)/.source, // next segment's program date/time group 5 => the datetime spec
/#.*/.source // All other non-segment oriented tags will match with all groups empty
].join('|'), 'g');
var LEVEL_PLAYLIST_REGEX_SLOW = new RegExp([/#(EXTM3U)/.source, /#EXT-X-(PLAYLIST-TYPE):(.+)/.source, /#EXT-X-(MEDIA-SEQUENCE): *(\d+)/.source, /#EXT-X-(SKIP):(.+)/.source, /#EXT-X-(TARGETDURATION): *(\d+)/.source, /#EXT-X-(KEY):(.+)/.source, /#EXT-X-(START):(.+)/.source, /#EXT-X-(ENDLIST)/.source, /#EXT-X-(DISCONTINUITY-SEQ)UENCE: *(\d+)/.source, /#EXT-X-(DIS)CONTINUITY/.source, /#EXT-X-(VERSION):(\d+)/.source, /#EXT-X-(MAP):(.+)/.source, /#EXT-X-(SERVER-CONTROL):(.+)/.source, /#EXT-X-(PART-INF):(.+)/.source, /#EXT-X-(GAP)/.source, /#EXT-X-(BITRATE):\s*(\d+)/.source, /#EXT-X-(PART):(.+)/.source, /#EXT-X-(PRELOAD-HINT):(.+)/.source, /#EXT-X-(RENDITION-REPORT):(.+)/.source, /(#)([^:]*):(.*)/.source, /(#)(.*)(?:.*)\r?\n?/.source].join('|'));
var MP4_REGEX_SUFFIX = /\.(mp4|m4s|m4v|m4a)$/i;

function isMP4Url(url) {
  var _URLToolkit$parseURL$, _URLToolkit$parseURL;

  return MP4_REGEX_SUFFIX.test((_URLToolkit$parseURL$ = (_URLToolkit$parseURL = url_toolkit__WEBPACK_IMPORTED_MODULE_1__["parseURL"](url)) === null || _URLToolkit$parseURL === void 0 ? void 0 : _URLToolkit$parseURL.path) != null ? _URLToolkit$parseURL$ : '');
}

var M3U8Parser = /*#__PURE__*/function () {
  function M3U8Parser() {}

  M3U8Parser.findGroup = function findGroup(groups, mediaGroupId) {
    for (var i = 0; i < groups.length; i++) {
      var group = groups[i];

      if (group.id === mediaGroupId) {
        return group;
      }
    }
  };

  M3U8Parser.convertAVC1ToAVCOTI = function convertAVC1ToAVCOTI(codec) {
    // Convert avc1 codec string from RFC-4281 to RFC-6381 for MediaSource.isTypeSupported
    var avcdata = codec.split('.');

    if (avcdata.length > 2) {
      var result = avcdata.shift() + '.';
      result += parseInt(avcdata.shift()).toString(16);
      result += ('000' + parseInt(avcdata.shift()).toString(16)).substr(-4);
      return result;
    }

    return codec;
  };

  M3U8Parser.resolve = function resolve(url, baseUrl) {
    return url_toolkit__WEBPACK_IMPORTED_MODULE_1__["buildAbsoluteURL"](baseUrl, url, {
      alwaysNormalize: true
    });
  };

  M3U8Parser.parseMasterPlaylist = function parseMasterPlaylist(string, baseurl) {
    var levels = [];
    var sessionData = {};
    var hasSessionData = false;
    MASTER_PLAYLIST_REGEX.lastIndex = 0;
    var result;

    while ((result = MASTER_PLAYLIST_REGEX.exec(string)) != null) {
      if (result[1]) {
        // '#EXT-X-STREAM-INF' is found, parse level tag  in group 1
        var attrs = new _utils_attr_list__WEBPACK_IMPORTED_MODULE_5__["AttrList"](result[1]);
        var level = {
          attrs: attrs,
          bitrate: attrs.decimalInteger('AVERAGE-BANDWIDTH') || attrs.decimalInteger('BANDWIDTH'),
          name: attrs.NAME,
          url: M3U8Parser.resolve(result[2], baseurl)
        };
        var resolution = attrs.decimalResolution('RESOLUTION');

        if (resolution) {
          level.width = resolution.width;
          level.height = resolution.height;
        }

        setCodecs((attrs.CODECS || '').split(/[ ,]+/).filter(function (c) {
          return c;
        }), level);

        if (level.videoCodec && level.videoCodec.indexOf('avc1') !== -1) {
          level.videoCodec = M3U8Parser.convertAVC1ToAVCOTI(level.videoCodec);
        }

        levels.push(level);
      } else if (result[3]) {
        // '#EXT-X-SESSION-DATA' is found, parse session data in group 3
        var sessionAttrs = new _utils_attr_list__WEBPACK_IMPORTED_MODULE_5__["AttrList"](result[3]);

        if (sessionAttrs['DATA-ID']) {
          hasSessionData = true;
          sessionData[sessionAttrs['DATA-ID']] = sessionAttrs;
        }
      }
    }

    return {
      levels: levels,
      sessionData: hasSessionData ? sessionData : null
    };
  };

  M3U8Parser.parseMasterPlaylistMedia = function parseMasterPlaylistMedia(string, baseurl, type, groups) {
    if (groups === void 0) {
      groups = [];
    }

    var result;
    var medias = [];
    var id = 0;
    MASTER_PLAYLIST_MEDIA_REGEX.lastIndex = 0;

    while ((result = MASTER_PLAYLIST_MEDIA_REGEX.exec(string)) !== null) {
      var attrs = new _utils_attr_list__WEBPACK_IMPORTED_MODULE_5__["AttrList"](result[1]);

      if (attrs.TYPE === type) {
        var media = {
          attrs: attrs,
          bitrate: 0,
          id: id++,
          groupId: attrs['GROUP-ID'],
          instreamId: attrs['INSTREAM-ID'],
          name: attrs.NAME || attrs.LANGUAGE || '',
          type: type,
          default: attrs.bool('DEFAULT'),
          autoselect: attrs.bool('AUTOSELECT'),
          forced: attrs.bool('FORCED'),
          lang: attrs.LANGUAGE,
          url: attrs.URI ? M3U8Parser.resolve(attrs.URI, baseurl) : ''
        };

        if (groups.length) {
          // If there are audio or text groups signalled in the manifest, let's look for a matching codec string for this track
          // If we don't find the track signalled, lets use the first audio groups codec we have
          // Acting as a best guess
          var groupCodec = M3U8Parser.findGroup(groups, media.groupId) || groups[0];
          assignCodec(media, groupCodec, 'audioCodec');
          assignCodec(media, groupCodec, 'textCodec');
        }

        medias.push(media);
      }
    }

    return medias;
  };

  M3U8Parser.parseLevelPlaylist = function parseLevelPlaylist(string, baseurl, id, type, levelUrlId) {
    var level = new _level_details__WEBPACK_IMPORTED_MODULE_3__["LevelDetails"](baseurl);
    var fragments = level.fragments; // The most recent init segment seen (applies to all subsequent segments)

    var currentInitSegment = null;
    var currentSN = 0;
    var currentPart = 0;
    var totalduration = 0;
    var discontinuityCounter = 0;
    var prevFrag = null;
    var frag = new _fragment__WEBPACK_IMPORTED_MODULE_2__["Fragment"](type, baseurl);
    var result;
    var i;
    var levelkey;
    var firstPdtIndex = -1;
    var createNextFrag = false;
    LEVEL_PLAYLIST_REGEX_FAST.lastIndex = 0;
    level.m3u8 = string;

    while ((result = LEVEL_PLAYLIST_REGEX_FAST.exec(string)) !== null) {
      if (createNextFrag) {
        createNextFrag = false;
        frag = new _fragment__WEBPACK_IMPORTED_MODULE_2__["Fragment"](type, baseurl); // setup the next fragment for part loading

        frag.start = totalduration;
        frag.sn = currentSN;
        frag.cc = discontinuityCounter;
        frag.level = id;

        if (currentInitSegment) {
          frag.initSegment = currentInitSegment;
          frag.rawProgramDateTime = currentInitSegment.rawProgramDateTime;
        }
      }

      var duration = result[1];

      if (duration) {
        // INF
        frag.duration = parseFloat(duration); // avoid sliced strings    https://github.com/video-dev/hls.js/issues/939

        var title = (' ' + result[2]).slice(1);
        frag.title = title || null;
        frag.tagList.push(title ? ['INF', duration, title] : ['INF', duration]);
      } else if (result[3]) {
        // url
        if (Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(frag.duration)) {
          frag.start = totalduration;

          if (levelkey) {
            frag.levelkey = levelkey;
          }

          frag.sn = currentSN;
          frag.level = id;
          frag.cc = discontinuityCounter;
          frag.urlId = levelUrlId;
          fragments.push(frag); // avoid sliced strings    https://github.com/video-dev/hls.js/issues/939

          frag.relurl = (' ' + result[3]).slice(1);
          assignProgramDateTime(frag, prevFrag);
          prevFrag = frag;
          totalduration += frag.duration;
          currentSN++;
          currentPart = 0;
          createNextFrag = true;
        }
      } else if (result[4]) {
        // X-BYTERANGE
        var data = (' ' + result[4]).slice(1);

        if (prevFrag) {
          frag.setByteRange(data, prevFrag);
        } else {
          frag.setByteRange(data);
        }
      } else if (result[5]) {
        // PROGRAM-DATE-TIME
        // avoid sliced strings    https://github.com/video-dev/hls.js/issues/939
        frag.rawProgramDateTime = (' ' + result[5]).slice(1);
        frag.tagList.push(['PROGRAM-DATE-TIME', frag.rawProgramDateTime]);

        if (firstPdtIndex === -1) {
          firstPdtIndex = fragments.length;
        }
      } else {
        result = result[0].match(LEVEL_PLAYLIST_REGEX_SLOW);

        if (!result) {
          _utils_logger__WEBPACK_IMPORTED_MODULE_6__["logger"].warn('No matches on slow regex match for level playlist!');
          continue;
        }

        for (i = 1; i < result.length; i++) {
          if (typeof result[i] !== 'undefined') {
            break;
          }
        } // avoid sliced strings    https://github.com/video-dev/hls.js/issues/939


        var tag = (' ' + result[i]).slice(1);
        var value1 = (' ' + result[i + 1]).slice(1);
        var value2 = result[i + 2] ? (' ' + result[i + 2]).slice(1) : '';

        switch (tag) {
          case 'PLAYLIST-TYPE':
            level.type = value1.toUpperCase();
            break;

          case 'MEDIA-SEQUENCE':
            currentSN = level.startSN = parseInt(value1);
            break;

          case 'SKIP':
            {
              var skipAttrs = new _utils_attr_list__WEBPACK_IMPORTED_MODULE_5__["AttrList"](value1);
              var skippedSegments = skipAttrs.decimalInteger('SKIPPED-SEGMENTS');

              if (Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(skippedSegments)) {
                level.skippedSegments = skippedSegments; // This will result in fragments[] containing undefined values, which we will fill in with `mergeDetails`

                for (var _i = skippedSegments; _i--;) {
                  fragments.unshift(null);
                }

                currentSN += skippedSegments;
              }

              var recentlyRemovedDateranges = skipAttrs.enumeratedString('RECENTLY-REMOVED-DATERANGES');

              if (recentlyRemovedDateranges) {
                level.recentlyRemovedDateranges = recentlyRemovedDateranges.split('\t');
              }

              break;
            }

          case 'TARGETDURATION':
            level.targetduration = parseFloat(value1);
            break;

          case 'VERSION':
            level.version = parseInt(value1);
            break;

          case 'EXTM3U':
            break;

          case 'ENDLIST':
            level.live = false;
            break;

          case '#':
            if (value1 || value2) {
              frag.tagList.push(value2 ? [value1, value2] : [value1]);
            }

            break;

          case 'DIS':
            discontinuityCounter++;

          /* falls through */

          case 'GAP':
            frag.tagList.push([tag]);
            break;

          case 'BITRATE':
            frag.tagList.push([tag, value1]);
            break;

          case 'DISCONTINUITY-SEQ':
            discontinuityCounter = parseInt(value1);
            break;

          case 'KEY':
            {
              var _keyAttrs$enumeratedS;

              // https://tools.ietf.org/html/rfc8216#section-4.3.2.4
              var keyAttrs = new _utils_attr_list__WEBPACK_IMPORTED_MODULE_5__["AttrList"](value1);
              var decryptmethod = keyAttrs.enumeratedString('METHOD');
              var decrypturi = keyAttrs.URI;
              var decryptiv = keyAttrs.hexadecimalInteger('IV');
              var decryptkeyformatversions = keyAttrs.enumeratedString('KEYFORMATVERSIONS');
              var decryptkeyid = keyAttrs.enumeratedString('KEYID'); // From RFC: This attribute is OPTIONAL; its absence indicates an implicit value of "identity".

              var decryptkeyformat = (_keyAttrs$enumeratedS = keyAttrs.enumeratedString('KEYFORMAT')) != null ? _keyAttrs$enumeratedS : 'identity';
              var unsupportedKnownKeyformatsInManifest = ['com.apple.streamingkeydelivery', 'com.microsoft.playready', 'urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed', // widevine (v2)
              'com.widevine' // earlier widevine (v1)
              ];

              if (unsupportedKnownKeyformatsInManifest.indexOf(decryptkeyformat) > -1) {
                _utils_logger__WEBPACK_IMPORTED_MODULE_6__["logger"].warn("Keyformat " + decryptkeyformat + " is not supported from the manifest");
                continue;
              } else if (decryptkeyformat !== 'identity') {
                // We are supposed to skip keys we don't understand.
                // As we currently only officially support identity keys
                // from the manifest we shouldn't save any other key.
                continue;
              } // TODO: multiple keys can be defined on a fragment, and we need to support this
              // for clients that support both playready and widevine


              if (decryptmethod) {
                // TODO: need to determine if the level key is actually a relative URL
                // if it isn't, then we should instead construct the LevelKey using fromURI.
                levelkey = _level_key__WEBPACK_IMPORTED_MODULE_4__["LevelKey"].fromURL(baseurl, decrypturi);

                if (decrypturi && ['AES-128', 'SAMPLE-AES', 'SAMPLE-AES-CENC'].indexOf(decryptmethod) >= 0) {
                  levelkey.method = decryptmethod;
                  levelkey.keyFormat = decryptkeyformat;

                  if (decryptkeyid) {
                    levelkey.keyID = decryptkeyid;
                  }

                  if (decryptkeyformatversions) {
                    levelkey.keyFormatVersions = decryptkeyformatversions;
                  } // Initialization Vector (IV)


                  levelkey.iv = decryptiv;
                }
              }

              break;
            }

          case 'START':
            {
              var startAttrs = new _utils_attr_list__WEBPACK_IMPORTED_MODULE_5__["AttrList"](value1);
              var startTimeOffset = startAttrs.decimalFloatingPoint('TIME-OFFSET'); // TIME-OFFSET can be 0

              if (Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(startTimeOffset)) {
                level.startTimeOffset = startTimeOffset;
              }

              break;
            }

          case 'MAP':
            {
              var mapAttrs = new _utils_attr_list__WEBPACK_IMPORTED_MODULE_5__["AttrList"](value1);
              frag.relurl = mapAttrs.URI;

              if (mapAttrs.BYTERANGE) {
                frag.setByteRange(mapAttrs.BYTERANGE);
              }

              frag.level = id;
              frag.sn = 'initSegment';

              if (levelkey) {
                frag.levelkey = levelkey;
              }

              frag.initSegment = null;
              currentInitSegment = frag;
              createNextFrag = true;
              break;
            }

          case 'SERVER-CONTROL':
            {
              var serverControlAttrs = new _utils_attr_list__WEBPACK_IMPORTED_MODULE_5__["AttrList"](value1);
              level.canBlockReload = serverControlAttrs.bool('CAN-BLOCK-RELOAD');
              level.canSkipUntil = serverControlAttrs.optionalFloat('CAN-SKIP-UNTIL', 0);
              level.canSkipDateRanges = level.canSkipUntil > 0 && serverControlAttrs.bool('CAN-SKIP-DATERANGES');
              level.partHoldBack = serverControlAttrs.optionalFloat('PART-HOLD-BACK', 0);
              level.holdBack = serverControlAttrs.optionalFloat('HOLD-BACK', 0);
              break;
            }

          case 'PART-INF':
            {
              var partInfAttrs = new _utils_attr_list__WEBPACK_IMPORTED_MODULE_5__["AttrList"](value1);
              level.partTarget = partInfAttrs.decimalFloatingPoint('PART-TARGET');
              break;
            }

          case 'PART':
            {
              var partList = level.partList;

              if (!partList) {
                partList = level.partList = [];
              }

              var previousFragmentPart = currentPart > 0 ? partList[partList.length - 1] : undefined;
              var index = currentPart++;
              var part = new _fragment__WEBPACK_IMPORTED_MODULE_2__["Part"](new _utils_attr_list__WEBPACK_IMPORTED_MODULE_5__["AttrList"](value1), frag, baseurl, index, previousFragmentPart);
              partList.push(part);
              frag.duration += part.duration;
              break;
            }

          case 'PRELOAD-HINT':
            {
              var preloadHintAttrs = new _utils_attr_list__WEBPACK_IMPORTED_MODULE_5__["AttrList"](value1);
              level.preloadHint = preloadHintAttrs;
              break;
            }

          case 'RENDITION-REPORT':
            {
              var renditionReportAttrs = new _utils_attr_list__WEBPACK_IMPORTED_MODULE_5__["AttrList"](value1);
              level.renditionReports = level.renditionReports || [];
              level.renditionReports.push(renditionReportAttrs);
              break;
            }

          default:
            _utils_logger__WEBPACK_IMPORTED_MODULE_6__["logger"].warn("line parsed but not handled: " + result);
            break;
        }
      }
    }

    if (prevFrag && !prevFrag.relurl) {
      fragments.pop();
      totalduration -= prevFrag.duration;

      if (level.partList) {
        level.fragmentHint = prevFrag;
      }
    } else if (level.partList) {
      assignProgramDateTime(frag, prevFrag);
      frag.cc = discontinuityCounter;
      level.fragmentHint = frag;
    }

    var fragmentLength = fragments.length;
    var firstFragment = fragments[0];
    var lastFragment = fragments[fragmentLength - 1];
    totalduration += level.skippedSegments * level.targetduration;

    if (totalduration > 0 && fragmentLength && lastFragment) {
      level.averagetargetduration = totalduration / fragmentLength;
      var lastSn = lastFragment.sn;
      level.endSN = lastSn !== 'initSegment' ? lastSn : 0;

      if (firstFragment) {
        level.startCC = firstFragment.cc;

        if (!firstFragment.initSegment) {
          // this is a bit lurky but HLS really has no other way to tell us
          // if the fragments are TS or MP4, except if we download them :/
          // but this is to be able to handle SIDX.
          if (level.fragments.every(function (frag) {
            return frag.relurl && isMP4Url(frag.relurl);
          })) {
            _utils_logger__WEBPACK_IMPORTED_MODULE_6__["logger"].warn('MP4 fragments found but no init segment (probably no MAP, incomplete M3U8), trying to fetch SIDX');
            frag = new _fragment__WEBPACK_IMPORTED_MODULE_2__["Fragment"](type, baseurl);
            frag.relurl = lastFragment.relurl;
            frag.level = id;
            frag.sn = 'initSegment';
            firstFragment.initSegment = frag;
            level.needSidxRanges = true;
          }
        }
      }
    } else {
      level.endSN = 0;
      level.startCC = 0;
    }

    if (level.fragmentHint) {
      totalduration += level.fragmentHint.duration;
    }

    level.totalduration = totalduration;
    level.endCC = discontinuityCounter;
    /**
     * Backfill any missing PDT values
     * "If the first EXT-X-PROGRAM-DATE-TIME tag in a Playlist appears after
     * one or more Media Segment URIs, the client SHOULD extrapolate
     * backward from that tag (using EXTINF durations and/or media
     * timestamps) to associate dates with those segments."
     * We have already extrapolated forward, but all fragments up to the first instance of PDT do not have their PDTs
     * computed.
     */

    if (firstPdtIndex > 0) {
      backfillProgramDateTimes(fragments, firstPdtIndex);
    }

    return level;
  };

  return M3U8Parser;
}();



function setCodecs(codecs, level) {
  ['video', 'audio', 'text'].forEach(function (type) {
    var filtered = codecs.filter(function (codec) {
      return Object(_utils_codecs__WEBPACK_IMPORTED_MODULE_7__["isCodecType"])(codec, type);
    });

    if (filtered.length) {
      var preferred = filtered.filter(function (codec) {
        return codec.lastIndexOf('avc1', 0) === 0 || codec.lastIndexOf('mp4a', 0) === 0;
      });
      level[type + "Codec"] = preferred.length > 0 ? preferred[0] : filtered[0]; // remove from list

      codecs = codecs.filter(function (codec) {
        return filtered.indexOf(codec) === -1;
      });
    }
  });
  level.unknownCodecs = codecs;
}

function assignCodec(media, groupItem, codecProperty) {
  var codecValue = groupItem[codecProperty];

  if (codecValue) {
    media[codecProperty] = codecValue;
  }
}

function backfillProgramDateTimes(fragments, firstPdtIndex) {
  var fragPrev = fragments[firstPdtIndex];

  for (var i = firstPdtIndex; i--;) {
    var frag = fragments[i]; // Exit on delta-playlist skipped segments

    if (!frag) {
      return;
    }

    frag.programDateTime = fragPrev.programDateTime - frag.duration * 1000;
    fragPrev = frag;
  }
}

function assignProgramDateTime(frag, prevFrag) {
  if (frag.rawProgramDateTime) {
    frag.programDateTime = Date.parse(frag.rawProgramDateTime);
  } else if (prevFrag !== null && prevFrag !== void 0 && prevFrag.programDateTime) {
    frag.programDateTime = prevFrag.endProgramDateTime;
  }

  if (!Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(frag.programDateTime)) {
    frag.programDateTime = null;
    frag.rawProgramDateTime = null;
  }
}

/***/ }),

/***/ "./src/loader/playlist-loader.ts":
/*!***************************************!*\
  !*** ./src/loader/playlist-loader.ts ***!
  \***************************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony import */ var _home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./src/polyfills/number */ "./src/polyfills/number.ts");
/* harmony import */ var _events__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../events */ "./src/events.ts");
/* harmony import */ var _errors__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../errors */ "./src/errors.ts");
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../utils/logger */ "./src/utils/logger.ts");
/* harmony import */ var _utils_mp4_tools__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../utils/mp4-tools */ "./src/utils/mp4-tools.ts");
/* harmony import */ var _m3u8_parser__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ./m3u8-parser */ "./src/loader/m3u8-parser.ts");
/* harmony import */ var _types_loader__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ../types/loader */ "./src/types/loader.ts");
/* harmony import */ var _utils_attr_list__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ../utils/attr-list */ "./src/utils/attr-list.ts");



/**
 * PlaylistLoader - delegate for media manifest/playlist loading tasks. Takes care of parsing media to internal data-models.
 *
 * Once loaded, dispatches events with parsed data-models of manifest/levels/audio/subtitle tracks.
 *
 * Uses loader(s) set in config to do actual internal loading of resource tasks.
 *
 * @module
 *
 */








function mapContextToLevelType(context) {
  var type = context.type;

  switch (type) {
    case _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistContextType"].AUDIO_TRACK:
      return _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistLevelType"].AUDIO;

    case _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistContextType"].SUBTITLE_TRACK:
      return _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistLevelType"].SUBTITLE;

    default:
      return _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistLevelType"].MAIN;
  }
}

function getResponseUrl(response, context) {
  var url = response.url; // responseURL not supported on some browsers (it is used to detect URL redirection)
  // data-uri mode also not supported (but no need to detect redirection)

  if (url === undefined || url.indexOf('data:') === 0) {
    // fallback to initial URL
    url = context.url;
  }

  return url;
}

var PlaylistLoader = /*#__PURE__*/function () {
  function PlaylistLoader(hls) {
    this.hls = void 0;
    this.loaders = Object.create(null);
    this.hls = hls;
    this.registerListeners();
  }

  var _proto = PlaylistLoader.prototype;

  _proto.registerListeners = function registerListeners() {
    var hls = this.hls;
    hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].MANIFEST_LOADING, this.onManifestLoading, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].LEVEL_LOADING, this.onLevelLoading, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].AUDIO_TRACK_LOADING, this.onAudioTrackLoading, this);
    hls.on(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].SUBTITLE_TRACK_LOADING, this.onSubtitleTrackLoading, this);
  };

  _proto.unregisterListeners = function unregisterListeners() {
    var hls = this.hls;
    hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].MANIFEST_LOADING, this.onManifestLoading, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].LEVEL_LOADING, this.onLevelLoading, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].AUDIO_TRACK_LOADING, this.onAudioTrackLoading, this);
    hls.off(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].SUBTITLE_TRACK_LOADING, this.onSubtitleTrackLoading, this);
  }
  /**
   * Returns defaults or configured loader-type overloads (pLoader and loader config params)
   */
  ;

  _proto.createInternalLoader = function createInternalLoader(context) {
    var config = this.hls.config;
    var PLoader = config.pLoader;
    var Loader = config.loader;
    var InternalLoader = PLoader || Loader;
    var loader = new InternalLoader(config);
    context.loader = loader;
    this.loaders[context.type] = loader;
    return loader;
  };

  _proto.getInternalLoader = function getInternalLoader(context) {
    return this.loaders[context.type];
  };

  _proto.resetInternalLoader = function resetInternalLoader(contextType) {
    if (this.loaders[contextType]) {
      delete this.loaders[contextType];
    }
  }
  /**
   * Call `destroy` on all internal loader instances mapped (one per context type)
   */
  ;

  _proto.destroyInternalLoaders = function destroyInternalLoaders() {
    for (var contextType in this.loaders) {
      var loader = this.loaders[contextType];

      if (loader) {
        loader.destroy();
      }

      this.resetInternalLoader(contextType);
    }
  };

  _proto.destroy = function destroy() {
    this.unregisterListeners();
    this.destroyInternalLoaders();
  };

  _proto.onManifestLoading = function onManifestLoading(event, data) {
    var url = data.url;
    this.load({
      id: null,
      groupId: null,
      level: 0,
      responseType: 'text',
      type: _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistContextType"].MANIFEST,
      url: url,
      deliveryDirectives: null
    });
  };

  _proto.onLevelLoading = function onLevelLoading(event, data) {
    var id = data.id,
        level = data.level,
        url = data.url,
        deliveryDirectives = data.deliveryDirectives;
    this.load({
      id: id,
      groupId: null,
      level: level,
      responseType: 'text',
      type: _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistContextType"].LEVEL,
      url: url,
      deliveryDirectives: deliveryDirectives
    });
  };

  _proto.onAudioTrackLoading = function onAudioTrackLoading(event, data) {
    var id = data.id,
        groupId = data.groupId,
        url = data.url,
        deliveryDirectives = data.deliveryDirectives;
    this.load({
      id: id,
      groupId: groupId,
      level: null,
      responseType: 'text',
      type: _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistContextType"].AUDIO_TRACK,
      url: url,
      deliveryDirectives: deliveryDirectives
    });
  };

  _proto.onSubtitleTrackLoading = function onSubtitleTrackLoading(event, data) {
    var id = data.id,
        groupId = data.groupId,
        url = data.url,
        deliveryDirectives = data.deliveryDirectives;
    this.load({
      id: id,
      groupId: groupId,
      level: null,
      responseType: 'text',
      type: _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistContextType"].SUBTITLE_TRACK,
      url: url,
      deliveryDirectives: deliveryDirectives
    });
  };

  _proto.load = function load(context) {
    var _context$deliveryDire;

    var config = this.hls.config; // logger.debug(`[playlist-loader]: Loading playlist of type ${context.type}, level: ${context.level}, id: ${context.id}`);
    // Check if a loader for this context already exists

    var loader = this.getInternalLoader(context);

    if (loader) {
      var loaderContext = loader.context;

      if (loaderContext && loaderContext.url === context.url) {
        // same URL can't overlap
        _utils_logger__WEBPACK_IMPORTED_MODULE_3__["logger"].trace('[playlist-loader]: playlist request ongoing');
        return;
      }

      _utils_logger__WEBPACK_IMPORTED_MODULE_3__["logger"].log("[playlist-loader]: aborting previous loader for type: " + context.type);
      loader.abort();
    }

    var maxRetry;
    var timeout;
    var retryDelay;
    var maxRetryDelay; // apply different configs for retries depending on
    // context (manifest, level, audio/subs playlist)

    switch (context.type) {
      case _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistContextType"].MANIFEST:
        maxRetry = config.manifestLoadingMaxRetry;
        timeout = config.manifestLoadingTimeOut;
        retryDelay = config.manifestLoadingRetryDelay;
        maxRetryDelay = config.manifestLoadingMaxRetryTimeout;
        break;

      case _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistContextType"].LEVEL:
      case _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistContextType"].AUDIO_TRACK:
      case _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistContextType"].SUBTITLE_TRACK:
        // Manage retries in Level/Track Controller
        maxRetry = 0;
        timeout = config.levelLoadingTimeOut;
        break;

      default:
        maxRetry = config.levelLoadingMaxRetry;
        timeout = config.levelLoadingTimeOut;
        retryDelay = config.levelLoadingRetryDelay;
        maxRetryDelay = config.levelLoadingMaxRetryTimeout;
        break;
    }

    loader = this.createInternalLoader(context); // Override level/track timeout for LL-HLS requests
    // (the default of 10000ms is counter productive to blocking playlist reload requests)

    if ((_context$deliveryDire = context.deliveryDirectives) !== null && _context$deliveryDire !== void 0 && _context$deliveryDire.part) {
      var levelDetails;

      if (context.type === _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistContextType"].LEVEL && context.level !== null) {
        levelDetails = this.hls.levels[context.level].details;
      } else if (context.type === _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistContextType"].AUDIO_TRACK && context.id !== null) {
        levelDetails = this.hls.audioTracks[context.id].details;
      } else if (context.type === _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistContextType"].SUBTITLE_TRACK && context.id !== null) {
        levelDetails = this.hls.subtitleTracks[context.id].details;
      }

      if (levelDetails) {
        var partTarget = levelDetails.partTarget;
        var targetDuration = levelDetails.targetduration;

        if (partTarget && targetDuration) {
          timeout = Math.min(Math.max(partTarget * 3, targetDuration * 0.8) * 1000, timeout);
        }
      }
    }

    var loaderConfig = {
      timeout: timeout,
      maxRetry: maxRetry,
      retryDelay: retryDelay,
      maxRetryDelay: maxRetryDelay,
      highWaterMark: 0
    };
    var loaderCallbacks = {
      onSuccess: this.loadsuccess.bind(this),
      onError: this.loaderror.bind(this),
      onTimeout: this.loadtimeout.bind(this)
    }; // logger.debug(`[playlist-loader]: Calling internal loader delegate for URL: ${context.url}`);

    loader.load(context, loaderConfig, loaderCallbacks);
  };

  _proto.loadsuccess = function loadsuccess(response, stats, context, networkDetails) {
    if (networkDetails === void 0) {
      networkDetails = null;
    }

    if (context.isSidxRequest) {
      this.handleSidxRequest(response, context);
      this.handlePlaylistLoaded(response, stats, context, networkDetails);
      return;
    }

    this.resetInternalLoader(context.type);
    var string = response.data; // Validate if it is an M3U8 at all

    if (string.indexOf('#EXTM3U') !== 0) {
      this.handleManifestParsingError(response, context, 'no EXTM3U delimiter', networkDetails);
      return;
    }

    stats.parsing.start = performance.now(); // Check if chunk-list or master. handle empty chunk list case (first EXTINF not signaled, but TARGETDURATION present)

    if (string.indexOf('#EXTINF:') > 0 || string.indexOf('#EXT-X-TARGETDURATION:') > 0) {
      this.handleTrackOrLevelPlaylist(response, stats, context, networkDetails);
    } else {
      this.handleMasterPlaylist(response, stats, context, networkDetails);
    }
  };

  _proto.loaderror = function loaderror(response, context, networkDetails) {
    if (networkDetails === void 0) {
      networkDetails = null;
    }

    this.handleNetworkError(context, networkDetails, false, response);
  };

  _proto.loadtimeout = function loadtimeout(stats, context, networkDetails) {
    if (networkDetails === void 0) {
      networkDetails = null;
    }

    this.handleNetworkError(context, networkDetails, true);
  };

  _proto.handleMasterPlaylist = function handleMasterPlaylist(response, stats, context, networkDetails) {
    var hls = this.hls;
    var string = response.data;
    var url = getResponseUrl(response, context);

    var _M3U8Parser$parseMast = _m3u8_parser__WEBPACK_IMPORTED_MODULE_5__["default"].parseMasterPlaylist(string, url),
        levels = _M3U8Parser$parseMast.levels,
        sessionData = _M3U8Parser$parseMast.sessionData;

    if (!levels.length) {
      this.handleManifestParsingError(response, context, 'no level found in manifest', networkDetails);
      return;
    } // multi level playlist, parse level info


    var audioGroups = levels.map(function (level) {
      return {
        id: level.attrs.AUDIO,
        audioCodec: level.audioCodec
      };
    });
    var subtitleGroups = levels.map(function (level) {
      return {
        id: level.attrs.SUBTITLES,
        textCodec: level.textCodec
      };
    });
    var audioTracks = _m3u8_parser__WEBPACK_IMPORTED_MODULE_5__["default"].parseMasterPlaylistMedia(string, url, 'AUDIO', audioGroups);
    var subtitles = _m3u8_parser__WEBPACK_IMPORTED_MODULE_5__["default"].parseMasterPlaylistMedia(string, url, 'SUBTITLES', subtitleGroups);
    var captions = _m3u8_parser__WEBPACK_IMPORTED_MODULE_5__["default"].parseMasterPlaylistMedia(string, url, 'CLOSED-CAPTIONS');

    if (audioTracks.length) {
      // check if we have found an audio track embedded in main playlist (audio track without URI attribute)
      var embeddedAudioFound = audioTracks.some(function (audioTrack) {
        return !audioTrack.url;
      }); // if no embedded audio track defined, but audio codec signaled in quality level,
      // we need to signal this main audio track this could happen with playlists with
      // alt audio rendition in which quality levels (main)
      // contains both audio+video. but with mixed audio track not signaled

      if (!embeddedAudioFound && levels[0].audioCodec && !levels[0].attrs.AUDIO) {
        _utils_logger__WEBPACK_IMPORTED_MODULE_3__["logger"].log('[playlist-loader]: audio codec signaled in quality level, but no embedded audio track signaled, create one');
        audioTracks.unshift({
          type: 'main',
          name: 'main',
          default: false,
          autoselect: false,
          forced: false,
          id: -1,
          attrs: new _utils_attr_list__WEBPACK_IMPORTED_MODULE_7__["AttrList"]({}),
          bitrate: 0,
          url: ''
        });
      }
    }

    hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].MANIFEST_LOADED, {
      levels: levels,
      audioTracks: audioTracks,
      subtitles: subtitles,
      captions: captions,
      url: url,
      stats: stats,
      networkDetails: networkDetails,
      sessionData: sessionData
    });
  };

  _proto.handleTrackOrLevelPlaylist = function handleTrackOrLevelPlaylist(response, stats, context, networkDetails) {
    var hls = this.hls;
    var id = context.id,
        level = context.level,
        type = context.type;
    var url = getResponseUrl(response, context);
    var levelUrlId = Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(id) ? id : 0;
    var levelId = Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(level) ? level : levelUrlId;
    var levelType = mapContextToLevelType(context);
    var levelDetails = _m3u8_parser__WEBPACK_IMPORTED_MODULE_5__["default"].parseLevelPlaylist(response.data, url, levelId, levelType, levelUrlId);

    if (!levelDetails.fragments.length) {
      hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].ERROR, {
        type: _errors__WEBPACK_IMPORTED_MODULE_2__["ErrorTypes"].NETWORK_ERROR,
        details: _errors__WEBPACK_IMPORTED_MODULE_2__["ErrorDetails"].LEVEL_EMPTY_ERROR,
        fatal: false,
        url: url,
        reason: 'no fragments found in level',
        level: typeof context.level === 'number' ? context.level : undefined
      });
      return;
    } // We have done our first request (Manifest-type) and receive
    // not a master playlist but a chunk-list (track/level)
    // We fire the manifest-loaded event anyway with the parsed level-details
    // by creating a single-level structure for it.


    if (type === _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistContextType"].MANIFEST) {
      var singleLevel = {
        attrs: new _utils_attr_list__WEBPACK_IMPORTED_MODULE_7__["AttrList"]({}),
        bitrate: 0,
        details: levelDetails,
        name: '',
        url: url
      };
      hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].MANIFEST_LOADED, {
        levels: [singleLevel],
        audioTracks: [],
        url: url,
        stats: stats,
        networkDetails: networkDetails,
        sessionData: null
      });
    } // save parsing time


    stats.parsing.end = performance.now(); // in case we need SIDX ranges
    // return early after calling load for
    // the SIDX box.

    if (levelDetails.needSidxRanges) {
      var _levelDetails$fragmen;

      var sidxUrl = (_levelDetails$fragmen = levelDetails.fragments[0].initSegment) === null || _levelDetails$fragmen === void 0 ? void 0 : _levelDetails$fragmen.url;
      this.load({
        url: sidxUrl,
        isSidxRequest: true,
        type: type,
        level: level,
        levelDetails: levelDetails,
        id: id,
        groupId: null,
        rangeStart: 0,
        rangeEnd: 2048,
        responseType: 'arraybuffer',
        deliveryDirectives: null
      });
      return;
    } // extend the context with the new levelDetails property


    context.levelDetails = levelDetails;
    this.handlePlaylistLoaded(response, stats, context, networkDetails);
  };

  _proto.handleSidxRequest = function handleSidxRequest(response, context) {
    var sidxInfo = Object(_utils_mp4_tools__WEBPACK_IMPORTED_MODULE_4__["parseSegmentIndex"])(new Uint8Array(response.data)); // if provided fragment does not contain sidx, early return

    if (!sidxInfo) {
      return;
    }

    var sidxReferences = sidxInfo.references;
    var levelDetails = context.levelDetails;
    sidxReferences.forEach(function (segmentRef, index) {
      var segRefInfo = segmentRef.info;
      var frag = levelDetails.fragments[index];

      if (frag.byteRange.length === 0) {
        frag.setByteRange(String(1 + segRefInfo.end - segRefInfo.start) + '@' + String(segRefInfo.start));
      }

      if (frag.initSegment) {
        frag.initSegment.setByteRange(String(sidxInfo.moovEndOffset) + '@0');
      }
    });
  };

  _proto.handleManifestParsingError = function handleManifestParsingError(response, context, reason, networkDetails) {
    this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].ERROR, {
      type: _errors__WEBPACK_IMPORTED_MODULE_2__["ErrorTypes"].NETWORK_ERROR,
      details: _errors__WEBPACK_IMPORTED_MODULE_2__["ErrorDetails"].MANIFEST_PARSING_ERROR,
      fatal: context.type === _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistContextType"].MANIFEST,
      url: response.url,
      reason: reason,
      response: response,
      context: context,
      networkDetails: networkDetails
    });
  };

  _proto.handleNetworkError = function handleNetworkError(context, networkDetails, timeout, response) {
    if (timeout === void 0) {
      timeout = false;
    }

    _utils_logger__WEBPACK_IMPORTED_MODULE_3__["logger"].warn("[playlist-loader]: A network " + (timeout ? 'timeout' : 'error') + " occurred while loading " + context.type + " level: " + context.level + " id: " + context.id + " group-id: \"" + context.groupId + "\"");
    var details = _errors__WEBPACK_IMPORTED_MODULE_2__["ErrorDetails"].UNKNOWN;
    var fatal = false;
    var loader = this.getInternalLoader(context);

    switch (context.type) {
      case _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistContextType"].MANIFEST:
        details = timeout ? _errors__WEBPACK_IMPORTED_MODULE_2__["ErrorDetails"].MANIFEST_LOAD_TIMEOUT : _errors__WEBPACK_IMPORTED_MODULE_2__["ErrorDetails"].MANIFEST_LOAD_ERROR;
        fatal = true;
        break;

      case _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistContextType"].LEVEL:
        details = timeout ? _errors__WEBPACK_IMPORTED_MODULE_2__["ErrorDetails"].LEVEL_LOAD_TIMEOUT : _errors__WEBPACK_IMPORTED_MODULE_2__["ErrorDetails"].LEVEL_LOAD_ERROR;
        fatal = false;
        break;

      case _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistContextType"].AUDIO_TRACK:
        details = timeout ? _errors__WEBPACK_IMPORTED_MODULE_2__["ErrorDetails"].AUDIO_TRACK_LOAD_TIMEOUT : _errors__WEBPACK_IMPORTED_MODULE_2__["ErrorDetails"].AUDIO_TRACK_LOAD_ERROR;
        fatal = false;
        break;

      case _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistContextType"].SUBTITLE_TRACK:
        details = timeout ? _errors__WEBPACK_IMPORTED_MODULE_2__["ErrorDetails"].SUBTITLE_TRACK_LOAD_TIMEOUT : _errors__WEBPACK_IMPORTED_MODULE_2__["ErrorDetails"].SUBTITLE_LOAD_ERROR;
        fatal = false;
        break;
    }

    if (loader) {
      this.resetInternalLoader(context.type);
    }

    var errorData = {
      type: _errors__WEBPACK_IMPORTED_MODULE_2__["ErrorTypes"].NETWORK_ERROR,
      details: details,
      fatal: fatal,
      url: context.url,
      loader: loader,
      context: context,
      networkDetails: networkDetails
    };

    if (response) {
      errorData.response = response;
    }

    this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].ERROR, errorData);
  };

  _proto.handlePlaylistLoaded = function handlePlaylistLoaded(response, stats, context, networkDetails) {
    var type = context.type,
        level = context.level,
        id = context.id,
        groupId = context.groupId,
        loader = context.loader,
        levelDetails = context.levelDetails,
        deliveryDirectives = context.deliveryDirectives;

    if (!(levelDetails !== null && levelDetails !== void 0 && levelDetails.targetduration)) {
      this.handleManifestParsingError(response, context, 'invalid target duration', networkDetails);
      return;
    }

    if (!loader) {
      return;
    }

    if (levelDetails.live) {
      if (loader.getCacheAge) {
        levelDetails.ageHeader = loader.getCacheAge() || 0;
      }

      if (!loader.getCacheAge || isNaN(levelDetails.ageHeader)) {
        levelDetails.ageHeader = 0;
      }
    }

    switch (type) {
      case _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistContextType"].MANIFEST:
      case _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistContextType"].LEVEL:
        this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].LEVEL_LOADED, {
          details: levelDetails,
          level: level || 0,
          id: id || 0,
          stats: stats,
          networkDetails: networkDetails,
          deliveryDirectives: deliveryDirectives
        });
        break;

      case _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistContextType"].AUDIO_TRACK:
        this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].AUDIO_TRACK_LOADED, {
          details: levelDetails,
          id: id || 0,
          groupId: groupId || '',
          stats: stats,
          networkDetails: networkDetails,
          deliveryDirectives: deliveryDirectives
        });
        break;

      case _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistContextType"].SUBTITLE_TRACK:
        this.hls.trigger(_events__WEBPACK_IMPORTED_MODULE_1__["Events"].SUBTITLE_TRACK_LOADED, {
          details: levelDetails,
          id: id || 0,
          groupId: groupId || '',
          stats: stats,
          networkDetails: networkDetails,
          deliveryDirectives: deliveryDirectives
        });
        break;
    }
  };

  return PlaylistLoader;
}();

/* harmony default export */ __webpack_exports__["default"] = (PlaylistLoader);

/***/ }),

/***/ "./src/polyfills/number.ts":
/*!*********************************!*\
  !*** ./src/polyfills/number.ts ***!
  \*********************************/
/*! exports provided: isFiniteNumber, MAX_SAFE_INTEGER */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "isFiniteNumber", function() { return isFiniteNumber; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "MAX_SAFE_INTEGER", function() { return MAX_SAFE_INTEGER; });
var isFiniteNumber = Number.isFinite || function (value) {
  return typeof value === 'number' && isFinite(value);
};
var MAX_SAFE_INTEGER = Number.MAX_SAFE_INTEGER || 9007199254740991;

/***/ }),

/***/ "./src/remux/aac-helper.ts":
/*!*********************************!*\
  !*** ./src/remux/aac-helper.ts ***!
  \*********************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/**
 *  AAC helper
 */
var AAC = /*#__PURE__*/function () {
  function AAC() {}

  AAC.getSilentFrame = function getSilentFrame(codec, channelCount) {
    switch (codec) {
      case 'mp4a.40.2':
        if (channelCount === 1) {
          return new Uint8Array([0x00, 0xc8, 0x00, 0x80, 0x23, 0x80]);
        } else if (channelCount === 2) {
          return new Uint8Array([0x21, 0x00, 0x49, 0x90, 0x02, 0x19, 0x00, 0x23, 0x80]);
        } else if (channelCount === 3) {
          return new Uint8Array([0x00, 0xc8, 0x00, 0x80, 0x20, 0x84, 0x01, 0x26, 0x40, 0x08, 0x64, 0x00, 0x8e]);
        } else if (channelCount === 4) {
          return new Uint8Array([0x00, 0xc8, 0x00, 0x80, 0x20, 0x84, 0x01, 0x26, 0x40, 0x08, 0x64, 0x00, 0x80, 0x2c, 0x80, 0x08, 0x02, 0x38]);
        } else if (channelCount === 5) {
          return new Uint8Array([0x00, 0xc8, 0x00, 0x80, 0x20, 0x84, 0x01, 0x26, 0x40, 0x08, 0x64, 0x00, 0x82, 0x30, 0x04, 0x99, 0x00, 0x21, 0x90, 0x02, 0x38]);
        } else if (channelCount === 6) {
          return new Uint8Array([0x00, 0xc8, 0x00, 0x80, 0x20, 0x84, 0x01, 0x26, 0x40, 0x08, 0x64, 0x00, 0x82, 0x30, 0x04, 0x99, 0x00, 0x21, 0x90, 0x02, 0x00, 0xb2, 0x00, 0x20, 0x08, 0xe0]);
        }

        break;
      // handle HE-AAC below (mp4a.40.5 / mp4a.40.29)

      default:
        if (channelCount === 1) {
          // ffmpeg -y -f lavfi -i "aevalsrc=0:d=0.05" -c:a libfdk_aac -profile:a aac_he -b:a 4k output.aac && hexdump -v -e '16/1 "0x%x," "\n"' -v output.aac
          return new Uint8Array([0x1, 0x40, 0x22, 0x80, 0xa3, 0x4e, 0xe6, 0x80, 0xba, 0x8, 0x0, 0x0, 0x0, 0x1c, 0x6, 0xf1, 0xc1, 0xa, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5e]);
        } else if (channelCount === 2) {
          // ffmpeg -y -f lavfi -i "aevalsrc=0|0:d=0.05" -c:a libfdk_aac -profile:a aac_he_v2 -b:a 4k output.aac && hexdump -v -e '16/1 "0x%x," "\n"' -v output.aac
          return new Uint8Array([0x1, 0x40, 0x22, 0x80, 0xa3, 0x5e, 0xe6, 0x80, 0xba, 0x8, 0x0, 0x0, 0x0, 0x0, 0x95, 0x0, 0x6, 0xf1, 0xa1, 0xa, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5e]);
        } else if (channelCount === 3) {
          // ffmpeg -y -f lavfi -i "aevalsrc=0|0|0:d=0.05" -c:a libfdk_aac -profile:a aac_he_v2 -b:a 4k output.aac && hexdump -v -e '16/1 "0x%x," "\n"' -v output.aac
          return new Uint8Array([0x1, 0x40, 0x22, 0x80, 0xa3, 0x5e, 0xe6, 0x80, 0xba, 0x8, 0x0, 0x0, 0x0, 0x0, 0x95, 0x0, 0x6, 0xf1, 0xa1, 0xa, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5e]);
        }

        break;
    }

    return undefined;
  };

  return AAC;
}();

/* harmony default export */ __webpack_exports__["default"] = (AAC);

/***/ }),

/***/ "./src/remux/mp4-generator.ts":
/*!************************************!*\
  !*** ./src/remux/mp4-generator.ts ***!
  \************************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/**
 * Generate MP4 Box
 */
var UINT32_MAX = Math.pow(2, 32) - 1;

var MP4 = /*#__PURE__*/function () {
  function MP4() {}

  MP4.init = function init() {
    MP4.types = {
      avc1: [],
      // codingname
      avcC: [],
      btrt: [],
      dinf: [],
      dref: [],
      esds: [],
      ftyp: [],
      hdlr: [],
      mdat: [],
      mdhd: [],
      mdia: [],
      mfhd: [],
      minf: [],
      moof: [],
      moov: [],
      mp4a: [],
      '.mp3': [],
      mvex: [],
      mvhd: [],
      pasp: [],
      sdtp: [],
      stbl: [],
      stco: [],
      stsc: [],
      stsd: [],
      stsz: [],
      stts: [],
      tfdt: [],
      tfhd: [],
      traf: [],
      trak: [],
      trun: [],
      trex: [],
      tkhd: [],
      vmhd: [],
      smhd: []
    };
    var i;

    for (i in MP4.types) {
      if (MP4.types.hasOwnProperty(i)) {
        MP4.types[i] = [i.charCodeAt(0), i.charCodeAt(1), i.charCodeAt(2), i.charCodeAt(3)];
      }
    }

    var videoHdlr = new Uint8Array([0x00, // version 0
    0x00, 0x00, 0x00, // flags
    0x00, 0x00, 0x00, 0x00, // pre_defined
    0x76, 0x69, 0x64, 0x65, // handler_type: 'vide'
    0x00, 0x00, 0x00, 0x00, // reserved
    0x00, 0x00, 0x00, 0x00, // reserved
    0x00, 0x00, 0x00, 0x00, // reserved
    0x56, 0x69, 0x64, 0x65, 0x6f, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72, 0x00 // name: 'VideoHandler'
    ]);
    var audioHdlr = new Uint8Array([0x00, // version 0
    0x00, 0x00, 0x00, // flags
    0x00, 0x00, 0x00, 0x00, // pre_defined
    0x73, 0x6f, 0x75, 0x6e, // handler_type: 'soun'
    0x00, 0x00, 0x00, 0x00, // reserved
    0x00, 0x00, 0x00, 0x00, // reserved
    0x00, 0x00, 0x00, 0x00, // reserved
    0x53, 0x6f, 0x75, 0x6e, 0x64, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72, 0x00 // name: 'SoundHandler'
    ]);
    MP4.HDLR_TYPES = {
      video: videoHdlr,
      audio: audioHdlr
    };
    var dref = new Uint8Array([0x00, // version 0
    0x00, 0x00, 0x00, // flags
    0x00, 0x00, 0x00, 0x01, // entry_count
    0x00, 0x00, 0x00, 0x0c, // entry_size
    0x75, 0x72, 0x6c, 0x20, // 'url' type
    0x00, // version 0
    0x00, 0x00, 0x01 // entry_flags
    ]);
    var stco = new Uint8Array([0x00, // version
    0x00, 0x00, 0x00, // flags
    0x00, 0x00, 0x00, 0x00 // entry_count
    ]);
    MP4.STTS = MP4.STSC = MP4.STCO = stco;
    MP4.STSZ = new Uint8Array([0x00, // version
    0x00, 0x00, 0x00, // flags
    0x00, 0x00, 0x00, 0x00, // sample_size
    0x00, 0x00, 0x00, 0x00 // sample_count
    ]);
    MP4.VMHD = new Uint8Array([0x00, // version
    0x00, 0x00, 0x01, // flags
    0x00, 0x00, // graphicsmode
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00 // opcolor
    ]);
    MP4.SMHD = new Uint8Array([0x00, // version
    0x00, 0x00, 0x00, // flags
    0x00, 0x00, // balance
    0x00, 0x00 // reserved
    ]);
    MP4.STSD = new Uint8Array([0x00, // version 0
    0x00, 0x00, 0x00, // flags
    0x00, 0x00, 0x00, 0x01]); // entry_count

    var majorBrand = new Uint8Array([105, 115, 111, 109]); // isom

    var avc1Brand = new Uint8Array([97, 118, 99, 49]); // avc1

    var minorVersion = new Uint8Array([0, 0, 0, 1]);
    MP4.FTYP = MP4.box(MP4.types.ftyp, majorBrand, minorVersion, majorBrand, avc1Brand);
    MP4.DINF = MP4.box(MP4.types.dinf, MP4.box(MP4.types.dref, dref));
  };

  MP4.box = function box(type) {
    var size = 8;

    for (var _len = arguments.length, payload = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
      payload[_key - 1] = arguments[_key];
    }

    var i = payload.length;
    var len = i; // calculate the total size we need to allocate

    while (i--) {
      size += payload[i].byteLength;
    }

    var result = new Uint8Array(size);
    result[0] = size >> 24 & 0xff;
    result[1] = size >> 16 & 0xff;
    result[2] = size >> 8 & 0xff;
    result[3] = size & 0xff;
    result.set(type, 4); // copy the payload into the result

    for (i = 0, size = 8; i < len; i++) {
      // copy payload[i] array @ offset size
      result.set(payload[i], size);
      size += payload[i].byteLength;
    }

    return result;
  };

  MP4.hdlr = function hdlr(type) {
    return MP4.box(MP4.types.hdlr, MP4.HDLR_TYPES[type]);
  };

  MP4.mdat = function mdat(data) {
    return MP4.box(MP4.types.mdat, data);
  };

  MP4.mdhd = function mdhd(timescale, duration) {
    duration *= timescale;
    var upperWordDuration = Math.floor(duration / (UINT32_MAX + 1));
    var lowerWordDuration = Math.floor(duration % (UINT32_MAX + 1));
    return MP4.box(MP4.types.mdhd, new Uint8Array([0x01, // version 1
    0x00, 0x00, 0x00, // flags
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, // creation_time
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, // modification_time
    timescale >> 24 & 0xff, timescale >> 16 & 0xff, timescale >> 8 & 0xff, timescale & 0xff, // timescale
    upperWordDuration >> 24, upperWordDuration >> 16 & 0xff, upperWordDuration >> 8 & 0xff, upperWordDuration & 0xff, lowerWordDuration >> 24, lowerWordDuration >> 16 & 0xff, lowerWordDuration >> 8 & 0xff, lowerWordDuration & 0xff, 0x55, 0xc4, // 'und' language (undetermined)
    0x00, 0x00]));
  };

  MP4.mdia = function mdia(track) {
    return MP4.box(MP4.types.mdia, MP4.mdhd(track.timescale, track.duration), MP4.hdlr(track.type), MP4.minf(track));
  };

  MP4.mfhd = function mfhd(sequenceNumber) {
    return MP4.box(MP4.types.mfhd, new Uint8Array([0x00, 0x00, 0x00, 0x00, // flags
    sequenceNumber >> 24, sequenceNumber >> 16 & 0xff, sequenceNumber >> 8 & 0xff, sequenceNumber & 0xff // sequence_number
    ]));
  };

  MP4.minf = function minf(track) {
    if (track.type === 'audio') {
      return MP4.box(MP4.types.minf, MP4.box(MP4.types.smhd, MP4.SMHD), MP4.DINF, MP4.stbl(track));
    } else {
      return MP4.box(MP4.types.minf, MP4.box(MP4.types.vmhd, MP4.VMHD), MP4.DINF, MP4.stbl(track));
    }
  };

  MP4.moof = function moof(sn, baseMediaDecodeTime, track) {
    return MP4.box(MP4.types.moof, MP4.mfhd(sn), MP4.traf(track, baseMediaDecodeTime));
  }
  /**
   * @param tracks... (optional) {array} the tracks associated with this movie
   */
  ;

  MP4.moov = function moov(tracks) {
    var i = tracks.length;
    var boxes = [];

    while (i--) {
      boxes[i] = MP4.trak(tracks[i]);
    }

    return MP4.box.apply(null, [MP4.types.moov, MP4.mvhd(tracks[0].timescale, tracks[0].duration)].concat(boxes).concat(MP4.mvex(tracks)));
  };

  MP4.mvex = function mvex(tracks) {
    var i = tracks.length;
    var boxes = [];

    while (i--) {
      boxes[i] = MP4.trex(tracks[i]);
    }

    return MP4.box.apply(null, [MP4.types.mvex].concat(boxes));
  };

  MP4.mvhd = function mvhd(timescale, duration) {
    duration *= timescale;
    var upperWordDuration = Math.floor(duration / (UINT32_MAX + 1));
    var lowerWordDuration = Math.floor(duration % (UINT32_MAX + 1));
    var bytes = new Uint8Array([0x01, // version 1
    0x00, 0x00, 0x00, // flags
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, // creation_time
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, // modification_time
    timescale >> 24 & 0xff, timescale >> 16 & 0xff, timescale >> 8 & 0xff, timescale & 0xff, // timescale
    upperWordDuration >> 24, upperWordDuration >> 16 & 0xff, upperWordDuration >> 8 & 0xff, upperWordDuration & 0xff, lowerWordDuration >> 24, lowerWordDuration >> 16 & 0xff, lowerWordDuration >> 8 & 0xff, lowerWordDuration & 0xff, 0x00, 0x01, 0x00, 0x00, // 1.0 rate
    0x01, 0x00, // 1.0 volume
    0x00, 0x00, // reserved
    0x00, 0x00, 0x00, 0x00, // reserved
    0x00, 0x00, 0x00, 0x00, // reserved
    0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, // transformation: unity matrix
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // pre_defined
    0xff, 0xff, 0xff, 0xff // next_track_ID
    ]);
    return MP4.box(MP4.types.mvhd, bytes);
  };

  MP4.sdtp = function sdtp(track) {
    var samples = track.samples || [];
    var bytes = new Uint8Array(4 + samples.length);
    var i;
    var flags; // leave the full box header (4 bytes) all zero
    // write the sample table

    for (i = 0; i < samples.length; i++) {
      flags = samples[i].flags;
      bytes[i + 4] = flags.dependsOn << 4 | flags.isDependedOn << 2 | flags.hasRedundancy;
    }

    return MP4.box(MP4.types.sdtp, bytes);
  };

  MP4.stbl = function stbl(track) {
    return MP4.box(MP4.types.stbl, MP4.stsd(track), MP4.box(MP4.types.stts, MP4.STTS), MP4.box(MP4.types.stsc, MP4.STSC), MP4.box(MP4.types.stsz, MP4.STSZ), MP4.box(MP4.types.stco, MP4.STCO));
  };

  MP4.avc1 = function avc1(track) {
    var sps = [];
    var pps = [];
    var i;
    var data;
    var len; // assemble the SPSs

    for (i = 0; i < track.sps.length; i++) {
      data = track.sps[i];
      len = data.byteLength;
      sps.push(len >>> 8 & 0xff);
      sps.push(len & 0xff); // SPS

      sps = sps.concat(Array.prototype.slice.call(data));
    } // assemble the PPSs


    for (i = 0; i < track.pps.length; i++) {
      data = track.pps[i];
      len = data.byteLength;
      pps.push(len >>> 8 & 0xff);
      pps.push(len & 0xff);
      pps = pps.concat(Array.prototype.slice.call(data));
    }

    var avcc = MP4.box(MP4.types.avcC, new Uint8Array([0x01, // version
    sps[3], // profile
    sps[4], // profile compat
    sps[5], // level
    0xfc | 3, // lengthSizeMinusOne, hard-coded to 4 bytes
    0xe0 | track.sps.length // 3bit reserved (111) + numOfSequenceParameterSets
    ].concat(sps).concat([track.pps.length // numOfPictureParameterSets
    ]).concat(pps))); // "PPS"

    var width = track.width;
    var height = track.height;
    var hSpacing = track.pixelRatio[0];
    var vSpacing = track.pixelRatio[1];
    return MP4.box(MP4.types.avc1, new Uint8Array([0x00, 0x00, 0x00, // reserved
    0x00, 0x00, 0x00, // reserved
    0x00, 0x01, // data_reference_index
    0x00, 0x00, // pre_defined
    0x00, 0x00, // reserved
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // pre_defined
    width >> 8 & 0xff, width & 0xff, // width
    height >> 8 & 0xff, height & 0xff, // height
    0x00, 0x48, 0x00, 0x00, // horizresolution
    0x00, 0x48, 0x00, 0x00, // vertresolution
    0x00, 0x00, 0x00, 0x00, // reserved
    0x00, 0x01, // frame_count
    0x12, 0x64, 0x61, 0x69, 0x6c, // dailymotion/hls.js
    0x79, 0x6d, 0x6f, 0x74, 0x69, 0x6f, 0x6e, 0x2f, 0x68, 0x6c, 0x73, 0x2e, 0x6a, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // compressorname
    0x00, 0x18, // depth = 24
    0x11, 0x11]), // pre_defined = -1
    avcc, MP4.box(MP4.types.btrt, new Uint8Array([0x00, 0x1c, 0x9c, 0x80, // bufferSizeDB
    0x00, 0x2d, 0xc6, 0xc0, // maxBitrate
    0x00, 0x2d, 0xc6, 0xc0])), // avgBitrate
    MP4.box(MP4.types.pasp, new Uint8Array([hSpacing >> 24, // hSpacing
    hSpacing >> 16 & 0xff, hSpacing >> 8 & 0xff, hSpacing & 0xff, vSpacing >> 24, // vSpacing
    vSpacing >> 16 & 0xff, vSpacing >> 8 & 0xff, vSpacing & 0xff])));
  };

  MP4.esds = function esds(track) {
    var configlen = track.config.length;
    return new Uint8Array([0x00, // version 0
    0x00, 0x00, 0x00, // flags
    0x03, // descriptor_type
    0x17 + configlen, // length
    0x00, 0x01, // es_id
    0x00, // stream_priority
    0x04, // descriptor_type
    0x0f + configlen, // length
    0x40, // codec : mpeg4_audio
    0x15, // stream_type
    0x00, 0x00, 0x00, // buffer_size
    0x00, 0x00, 0x00, 0x00, // maxBitrate
    0x00, 0x00, 0x00, 0x00, // avgBitrate
    0x05 // descriptor_type
    ].concat([configlen]).concat(track.config).concat([0x06, 0x01, 0x02])); // GASpecificConfig)); // length + audio config descriptor
  };

  MP4.mp4a = function mp4a(track) {
    var samplerate = track.samplerate;
    return MP4.box(MP4.types.mp4a, new Uint8Array([0x00, 0x00, 0x00, // reserved
    0x00, 0x00, 0x00, // reserved
    0x00, 0x01, // data_reference_index
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved
    0x00, track.channelCount, // channelcount
    0x00, 0x10, // sampleSize:16bits
    0x00, 0x00, 0x00, 0x00, // reserved2
    samplerate >> 8 & 0xff, samplerate & 0xff, //
    0x00, 0x00]), MP4.box(MP4.types.esds, MP4.esds(track)));
  };

  MP4.mp3 = function mp3(track) {
    var samplerate = track.samplerate;
    return MP4.box(MP4.types['.mp3'], new Uint8Array([0x00, 0x00, 0x00, // reserved
    0x00, 0x00, 0x00, // reserved
    0x00, 0x01, // data_reference_index
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved
    0x00, track.channelCount, // channelcount
    0x00, 0x10, // sampleSize:16bits
    0x00, 0x00, 0x00, 0x00, // reserved2
    samplerate >> 8 & 0xff, samplerate & 0xff, //
    0x00, 0x00]));
  };

  MP4.stsd = function stsd(track) {
    if (track.type === 'audio') {
      if (!track.isAAC && track.codec === 'mp3') {
        return MP4.box(MP4.types.stsd, MP4.STSD, MP4.mp3(track));
      }

      return MP4.box(MP4.types.stsd, MP4.STSD, MP4.mp4a(track));
    } else {
      return MP4.box(MP4.types.stsd, MP4.STSD, MP4.avc1(track));
    }
  };

  MP4.tkhd = function tkhd(track) {
    var id = track.id;
    var duration = track.duration * track.timescale;
    var width = track.width;
    var height = track.height;
    var upperWordDuration = Math.floor(duration / (UINT32_MAX + 1));
    var lowerWordDuration = Math.floor(duration % (UINT32_MAX + 1));
    return MP4.box(MP4.types.tkhd, new Uint8Array([0x01, // version 1
    0x00, 0x00, 0x07, // flags
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, // creation_time
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, // modification_time
    id >> 24 & 0xff, id >> 16 & 0xff, id >> 8 & 0xff, id & 0xff, // track_ID
    0x00, 0x00, 0x00, 0x00, // reserved
    upperWordDuration >> 24, upperWordDuration >> 16 & 0xff, upperWordDuration >> 8 & 0xff, upperWordDuration & 0xff, lowerWordDuration >> 24, lowerWordDuration >> 16 & 0xff, lowerWordDuration >> 8 & 0xff, lowerWordDuration & 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved
    0x00, 0x00, // layer
    0x00, 0x00, // alternate_group
    0x00, 0x00, // non-audio track volume
    0x00, 0x00, // reserved
    0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, // transformation: unity matrix
    width >> 8 & 0xff, width & 0xff, 0x00, 0x00, // width
    height >> 8 & 0xff, height & 0xff, 0x00, 0x00 // height
    ]));
  };

  MP4.traf = function traf(track, baseMediaDecodeTime) {
    var sampleDependencyTable = MP4.sdtp(track);
    var id = track.id;
    var upperWordBaseMediaDecodeTime = Math.floor(baseMediaDecodeTime / (UINT32_MAX + 1));
    var lowerWordBaseMediaDecodeTime = Math.floor(baseMediaDecodeTime % (UINT32_MAX + 1));
    return MP4.box(MP4.types.traf, MP4.box(MP4.types.tfhd, new Uint8Array([0x00, // version 0
    0x00, 0x00, 0x00, // flags
    id >> 24, id >> 16 & 0xff, id >> 8 & 0xff, id & 0xff // track_ID
    ])), MP4.box(MP4.types.tfdt, new Uint8Array([0x01, // version 1
    0x00, 0x00, 0x00, // flags
    upperWordBaseMediaDecodeTime >> 24, upperWordBaseMediaDecodeTime >> 16 & 0xff, upperWordBaseMediaDecodeTime >> 8 & 0xff, upperWordBaseMediaDecodeTime & 0xff, lowerWordBaseMediaDecodeTime >> 24, lowerWordBaseMediaDecodeTime >> 16 & 0xff, lowerWordBaseMediaDecodeTime >> 8 & 0xff, lowerWordBaseMediaDecodeTime & 0xff])), MP4.trun(track, sampleDependencyTable.length + 16 + // tfhd
    20 + // tfdt
    8 + // traf header
    16 + // mfhd
    8 + // moof header
    8), // mdat header
    sampleDependencyTable);
  }
  /**
   * Generate a track box.
   * @param track {object} a track definition
   * @return {Uint8Array} the track box
   */
  ;

  MP4.trak = function trak(track) {
    track.duration = track.duration || 0xffffffff;
    return MP4.box(MP4.types.trak, MP4.tkhd(track), MP4.mdia(track));
  };

  MP4.trex = function trex(track) {
    var id = track.id;
    return MP4.box(MP4.types.trex, new Uint8Array([0x00, // version 0
    0x00, 0x00, 0x00, // flags
    id >> 24, id >> 16 & 0xff, id >> 8 & 0xff, id & 0xff, // track_ID
    0x00, 0x00, 0x00, 0x01, // default_sample_description_index
    0x00, 0x00, 0x00, 0x00, // default_sample_duration
    0x00, 0x00, 0x00, 0x00, // default_sample_size
    0x00, 0x01, 0x00, 0x01 // default_sample_flags
    ]));
  };

  MP4.trun = function trun(track, offset) {
    var samples = track.samples || [];
    var len = samples.length;
    var arraylen = 12 + 16 * len;
    var array = new Uint8Array(arraylen);
    var i;
    var sample;
    var duration;
    var size;
    var flags;
    var cts;
    offset += 8 + arraylen;
    array.set([0x00, // version 0
    0x00, 0x0f, 0x01, // flags
    len >>> 24 & 0xff, len >>> 16 & 0xff, len >>> 8 & 0xff, len & 0xff, // sample_count
    offset >>> 24 & 0xff, offset >>> 16 & 0xff, offset >>> 8 & 0xff, offset & 0xff // data_offset
    ], 0);

    for (i = 0; i < len; i++) {
      sample = samples[i];
      duration = sample.duration;
      size = sample.size;
      flags = sample.flags;
      cts = sample.cts;
      array.set([duration >>> 24 & 0xff, duration >>> 16 & 0xff, duration >>> 8 & 0xff, duration & 0xff, // sample_duration
      size >>> 24 & 0xff, size >>> 16 & 0xff, size >>> 8 & 0xff, size & 0xff, // sample_size
      flags.isLeading << 2 | flags.dependsOn, flags.isDependedOn << 6 | flags.hasRedundancy << 4 | flags.paddingValue << 1 | flags.isNonSync, flags.degradPrio & 0xf0 << 8, flags.degradPrio & 0x0f, // sample_flags
      cts >>> 24 & 0xff, cts >>> 16 & 0xff, cts >>> 8 & 0xff, cts & 0xff // sample_composition_time_offset
      ], 12 + 16 * i);
    }

    return MP4.box(MP4.types.trun, array);
  };

  MP4.initSegment = function initSegment(tracks) {
    if (!MP4.types) {
      MP4.init();
    }

    var movie = MP4.moov(tracks);
    var result = new Uint8Array(MP4.FTYP.byteLength + movie.byteLength);
    result.set(MP4.FTYP);
    result.set(movie, MP4.FTYP.byteLength);
    return result;
  };

  return MP4;
}();

MP4.types = void 0;
MP4.HDLR_TYPES = void 0;
MP4.STTS = void 0;
MP4.STSC = void 0;
MP4.STCO = void 0;
MP4.STSZ = void 0;
MP4.VMHD = void 0;
MP4.SMHD = void 0;
MP4.STSD = void 0;
MP4.FTYP = void 0;
MP4.DINF = void 0;
/* harmony default export */ __webpack_exports__["default"] = (MP4);

/***/ }),

/***/ "./src/remux/mp4-remuxer.ts":
/*!**********************************!*\
  !*** ./src/remux/mp4-remuxer.ts ***!
  \**********************************/
/*! exports provided: default, normalizePts */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "default", function() { return MP4Remuxer; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "normalizePts", function() { return normalizePts; });
/* harmony import */ var _home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./src/polyfills/number */ "./src/polyfills/number.ts");
/* harmony import */ var _aac_helper__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./aac-helper */ "./src/remux/aac-helper.ts");
/* harmony import */ var _mp4_generator__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./mp4-generator */ "./src/remux/mp4-generator.ts");
/* harmony import */ var _events__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../events */ "./src/events.ts");
/* harmony import */ var _errors__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../errors */ "./src/errors.ts");
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ../utils/logger */ "./src/utils/logger.ts");
/* harmony import */ var _types_loader__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ../types/loader */ "./src/types/loader.ts");
/* harmony import */ var _utils_timescale_conversion__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ../utils/timescale-conversion */ "./src/utils/timescale-conversion.ts");


function _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }








var MAX_SILENT_FRAME_DURATION = 10 * 1000; // 10 seconds

var AAC_SAMPLES_PER_FRAME = 1024;
var MPEG_AUDIO_SAMPLE_PER_FRAME = 1152;
var chromeVersion = null;
var safariWebkitVersion = null;
var requiresPositiveDts = false;

var MP4Remuxer = /*#__PURE__*/function () {
  function MP4Remuxer(observer, config, typeSupported, vendor) {
    if (vendor === void 0) {
      vendor = '';
    }

    this.observer = void 0;
    this.config = void 0;
    this.typeSupported = void 0;
    this.ISGenerated = false;
    this._initPTS = void 0;
    this._initDTS = void 0;
    this.nextAvcDts = null;
    this.nextAudioPts = null;
    this.isAudioContiguous = false;
    this.isVideoContiguous = false;
    this.observer = observer;
    this.config = config;
    this.typeSupported = typeSupported;
    this.ISGenerated = false;

    if (chromeVersion === null) {
      var userAgent = navigator.userAgent || '';
      var result = userAgent.match(/Chrome\/(\d+)/i);
      chromeVersion = result ? parseInt(result[1]) : 0;
    }

    if (safariWebkitVersion === null) {
      var _result = navigator.userAgent.match(/Safari\/(\d+)/i);

      safariWebkitVersion = _result ? parseInt(_result[1]) : 0;
    }

    requiresPositiveDts = !!chromeVersion && chromeVersion < 75 || !!safariWebkitVersion && safariWebkitVersion < 600;
  }

  var _proto = MP4Remuxer.prototype;

  _proto.destroy = function destroy() {};

  _proto.resetTimeStamp = function resetTimeStamp(defaultTimeStamp) {
    _utils_logger__WEBPACK_IMPORTED_MODULE_5__["logger"].log('[mp4-remuxer]: initPTS & initDTS reset');
    this._initPTS = this._initDTS = defaultTimeStamp;
  };

  _proto.resetNextTimestamp = function resetNextTimestamp() {
    _utils_logger__WEBPACK_IMPORTED_MODULE_5__["logger"].log('[mp4-remuxer]: reset next timestamp');
    this.isVideoContiguous = false;
    this.isAudioContiguous = false;
  };

  _proto.resetInitSegment = function resetInitSegment() {
    _utils_logger__WEBPACK_IMPORTED_MODULE_5__["logger"].log('[mp4-remuxer]: ISGenerated flag reset');
    this.ISGenerated = false;
  };

  _proto.getVideoStartPts = function getVideoStartPts(videoSamples) {
    var rolloverDetected = false;
    var startPTS = videoSamples.reduce(function (minPTS, sample) {
      var delta = sample.pts - minPTS;

      if (delta < -4294967296) {
        // 2^32, see PTSNormalize for reasoning, but we're hitting a rollover here, and we don't want that to impact the timeOffset calculation
        rolloverDetected = true;
        return normalizePts(minPTS, sample.pts);
      } else if (delta > 0) {
        return minPTS;
      } else {
        return sample.pts;
      }
    }, videoSamples[0].pts);

    if (rolloverDetected) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_5__["logger"].debug('PTS rollover detected');
    }

    return startPTS;
  };

  _proto.remux = function remux(audioTrack, videoTrack, id3Track, textTrack, timeOffset, accurateTimeOffset, flush, playlistType) {
    var video;
    var audio;
    var initSegment;
    var text;
    var id3;
    var independent;
    var audioTimeOffset = timeOffset;
    var videoTimeOffset = timeOffset; // If we're remuxing audio and video progressively, wait until we've received enough samples for each track before proceeding.
    // This is done to synchronize the audio and video streams. We know if the current segment will have samples if the "pid"
    // parameter is greater than -1. The pid is set when the PMT is parsed, which contains the tracks list.
    // However, if the initSegment has already been generated, or we've reached the end of a segment (flush),
    // then we can remux one track without waiting for the other.

    var hasAudio = audioTrack.pid > -1;
    var hasVideo = videoTrack.pid > -1;
    var length = videoTrack.samples.length;
    var enoughAudioSamples = audioTrack.samples.length > 0;
    var enoughVideoSamples = length > 1;
    var canRemuxAvc = (!hasAudio || enoughAudioSamples) && (!hasVideo || enoughVideoSamples) || this.ISGenerated || flush;

    if (canRemuxAvc) {
      if (!this.ISGenerated) {
        initSegment = this.generateIS(audioTrack, videoTrack, timeOffset);
      }

      var isVideoContiguous = this.isVideoContiguous;
      var firstKeyFrameIndex = -1;

      if (enoughVideoSamples) {
        firstKeyFrameIndex = findKeyframeIndex(videoTrack.samples);

        if (!isVideoContiguous && this.config.forceKeyFrameOnDiscontinuity) {
          independent = true;

          if (firstKeyFrameIndex > 0) {
            _utils_logger__WEBPACK_IMPORTED_MODULE_5__["logger"].warn("[mp4-remuxer]: Dropped " + firstKeyFrameIndex + " out of " + length + " video samples due to a missing keyframe");
            var startPTS = this.getVideoStartPts(videoTrack.samples);
            videoTrack.samples = videoTrack.samples.slice(firstKeyFrameIndex);
            videoTrack.dropped += firstKeyFrameIndex;
            videoTimeOffset += (videoTrack.samples[0].pts - startPTS) / (videoTrack.timescale || 90000);
          } else if (firstKeyFrameIndex === -1) {
            _utils_logger__WEBPACK_IMPORTED_MODULE_5__["logger"].warn("[mp4-remuxer]: No keyframe found out of " + length + " video samples");
            independent = false;
          }
        }
      }

      if (this.ISGenerated) {
        if (enoughAudioSamples && enoughVideoSamples) {
          // timeOffset is expected to be the offset of the first timestamp of this fragment (first DTS)
          // if first audio DTS is not aligned with first video DTS then we need to take that into account
          // when providing timeOffset to remuxAudio / remuxVideo. if we don't do that, there might be a permanent / small
          // drift between audio and video streams
          var _startPTS = this.getVideoStartPts(videoTrack.samples);

          var tsDelta = normalizePts(audioTrack.samples[0].pts, _startPTS) - _startPTS;

          var audiovideoTimestampDelta = tsDelta / videoTrack.inputTimeScale;
          audioTimeOffset += Math.max(0, audiovideoTimestampDelta);
          videoTimeOffset += Math.max(0, -audiovideoTimestampDelta);
        } // Purposefully remuxing audio before video, so that remuxVideo can use nextAudioPts, which is calculated in remuxAudio.


        if (enoughAudioSamples) {
          // if initSegment was generated without audio samples, regenerate it again
          if (!audioTrack.samplerate) {
            _utils_logger__WEBPACK_IMPORTED_MODULE_5__["logger"].warn('[mp4-remuxer]: regenerate InitSegment as audio detected');
            initSegment = this.generateIS(audioTrack, videoTrack, timeOffset);
          }

          audio = this.remuxAudio(audioTrack, audioTimeOffset, this.isAudioContiguous, accurateTimeOffset, hasVideo || enoughVideoSamples || playlistType === _types_loader__WEBPACK_IMPORTED_MODULE_6__["PlaylistLevelType"].AUDIO ? videoTimeOffset : undefined);

          if (enoughVideoSamples) {
            var audioTrackLength = audio ? audio.endPTS - audio.startPTS : 0; // if initSegment was generated without video samples, regenerate it again

            if (!videoTrack.inputTimeScale) {
              _utils_logger__WEBPACK_IMPORTED_MODULE_5__["logger"].warn('[mp4-remuxer]: regenerate InitSegment as video detected');
              initSegment = this.generateIS(audioTrack, videoTrack, timeOffset);
            }

            video = this.remuxVideo(videoTrack, videoTimeOffset, isVideoContiguous, audioTrackLength);
          }
        } else if (enoughVideoSamples) {
          video = this.remuxVideo(videoTrack, videoTimeOffset, isVideoContiguous, 0);
        }

        if (video) {
          video.firstKeyFrame = firstKeyFrameIndex;
          video.independent = firstKeyFrameIndex !== -1;
        }
      }
    } // Allow ID3 and text to remux, even if more audio/video samples are required


    if (this.ISGenerated) {
      if (id3Track.samples.length) {
        id3 = this.remuxID3(id3Track, timeOffset);
      }

      if (textTrack.samples.length) {
        text = this.remuxText(textTrack, timeOffset);
      }
    }

    return {
      audio: audio,
      video: video,
      initSegment: initSegment,
      independent: independent,
      text: text,
      id3: id3
    };
  };

  _proto.generateIS = function generateIS(audioTrack, videoTrack, timeOffset) {
    var audioSamples = audioTrack.samples;
    var videoSamples = videoTrack.samples;
    var typeSupported = this.typeSupported;
    var tracks = {};
    var computePTSDTS = !Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(this._initPTS);
    var container = 'audio/mp4';
    var initPTS;
    var initDTS;
    var timescale;

    if (computePTSDTS) {
      initPTS = initDTS = Infinity;
    }

    if (audioTrack.config && audioSamples.length) {
      // let's use audio sampling rate as MP4 time scale.
      // rationale is that there is a integer nb of audio frames per audio sample (1024 for AAC)
      // using audio sampling rate here helps having an integer MP4 frame duration
      // this avoids potential rounding issue and AV sync issue
      audioTrack.timescale = audioTrack.samplerate;

      if (!audioTrack.isAAC) {
        if (typeSupported.mpeg) {
          // Chrome and Safari
          container = 'audio/mpeg';
          audioTrack.codec = '';
        } else if (typeSupported.mp3) {
          // Firefox
          audioTrack.codec = 'mp3';
        }
      }

      tracks.audio = {
        id: 'audio',
        container: container,
        codec: audioTrack.codec,
        initSegment: !audioTrack.isAAC && typeSupported.mpeg ? new Uint8Array(0) : _mp4_generator__WEBPACK_IMPORTED_MODULE_2__["default"].initSegment([audioTrack]),
        metadata: {
          channelCount: audioTrack.channelCount
        }
      };

      if (computePTSDTS) {
        timescale = audioTrack.inputTimeScale; // remember first PTS of this demuxing context. for audio, PTS = DTS

        initPTS = initDTS = audioSamples[0].pts - Math.round(timescale * timeOffset);
      }
    }

    if (videoTrack.sps && videoTrack.pps && videoSamples.length) {
      // let's use input time scale as MP4 video timescale
      // we use input time scale straight away to avoid rounding issues on frame duration / cts computation
      videoTrack.timescale = videoTrack.inputTimeScale;
      tracks.video = {
        id: 'main',
        container: 'video/mp4',
        codec: videoTrack.codec,
        initSegment: _mp4_generator__WEBPACK_IMPORTED_MODULE_2__["default"].initSegment([videoTrack]),
        metadata: {
          width: videoTrack.width,
          height: videoTrack.height
        }
      };

      if (computePTSDTS) {
        timescale = videoTrack.inputTimeScale;
        var startPTS = this.getVideoStartPts(videoSamples);
        var startOffset = Math.round(timescale * timeOffset);
        initDTS = Math.min(initDTS, normalizePts(videoSamples[0].dts, startPTS) - startOffset);
        initPTS = Math.min(initPTS, startPTS - startOffset);
      }
    }

    if (Object.keys(tracks).length) {
      this.ISGenerated = true;

      if (computePTSDTS) {
        this._initPTS = initPTS;
        this._initDTS = initDTS;
      }

      return {
        tracks: tracks,
        initPTS: initPTS,
        timescale: timescale
      };
    }
  };

  _proto.remuxVideo = function remuxVideo(track, timeOffset, contiguous, audioTrackLength) {
    var timeScale = track.inputTimeScale;
    var inputSamples = track.samples;
    var outputSamples = [];
    var nbSamples = inputSamples.length;
    var initPTS = this._initPTS;
    var nextAvcDts = this.nextAvcDts;
    var offset = 8;
    var mp4SampleDuration;
    var firstDTS;
    var lastDTS;
    var minPTS = Number.POSITIVE_INFINITY;
    var maxPTS = Number.NEGATIVE_INFINITY;
    var ptsDtsShift = 0;
    var sortSamples = false; // if parsed fragment is contiguous with last one, let's use last DTS value as reference

    if (!contiguous || nextAvcDts === null) {
      var pts = timeOffset * timeScale;
      var cts = inputSamples[0].pts - normalizePts(inputSamples[0].dts, inputSamples[0].pts); // if not contiguous, let's use target timeOffset

      nextAvcDts = pts - cts;
    } // PTS is coded on 33bits, and can loop from -2^32 to 2^32
    // PTSNormalize will make PTS/DTS value monotonic, we use last known DTS value as reference value


    for (var i = 0; i < nbSamples; i++) {
      var sample = inputSamples[i];
      sample.pts = normalizePts(sample.pts - initPTS, nextAvcDts);
      sample.dts = normalizePts(sample.dts - initPTS, nextAvcDts);

      if (sample.dts > sample.pts) {
        var PTS_DTS_SHIFT_TOLERANCE_90KHZ = 90000 * 0.2;
        ptsDtsShift = Math.max(Math.min(ptsDtsShift, sample.pts - sample.dts), -1 * PTS_DTS_SHIFT_TOLERANCE_90KHZ);
      }

      if (sample.dts < inputSamples[i > 0 ? i - 1 : i].dts) {
        sortSamples = true;
      }
    } // sort video samples by DTS then PTS then demux id order


    if (sortSamples) {
      inputSamples.sort(function (a, b) {
        var deltadts = a.dts - b.dts;
        var deltapts = a.pts - b.pts;
        return deltadts || deltapts;
      });
    } // Get first/last DTS


    firstDTS = inputSamples[0].dts;
    lastDTS = inputSamples[inputSamples.length - 1].dts; // on Safari let's signal the same sample duration for all samples
    // sample duration (as expected by trun MP4 boxes), should be the delta between sample DTS
    // set this constant duration as being the avg delta between consecutive DTS.

    var averageSampleDuration = Math.round((lastDTS - firstDTS) / (nbSamples - 1)); // handle broken streams with PTS < DTS, tolerance up 0.2 seconds

    if (ptsDtsShift < 0) {
      if (ptsDtsShift < averageSampleDuration * -2) {
        // Fix for "CNN special report, with CC" in test-streams (including Safari browser)
        // With large PTS < DTS errors such as this, we want to correct CTS while maintaining increasing DTS values
        _utils_logger__WEBPACK_IMPORTED_MODULE_5__["logger"].warn("PTS < DTS detected in video samples, offsetting DTS from PTS by " + Object(_utils_timescale_conversion__WEBPACK_IMPORTED_MODULE_7__["toMsFromMpegTsClock"])(-averageSampleDuration, true) + " ms");
        var lastDts = ptsDtsShift;

        for (var _i = 0; _i < nbSamples; _i++) {
          inputSamples[_i].dts = lastDts = Math.max(lastDts, inputSamples[_i].pts - averageSampleDuration);
          inputSamples[_i].pts = Math.max(lastDts, inputSamples[_i].pts);
        }
      } else {
        // Fix for "Custom IV with bad PTS DTS" in test-streams
        // With smaller PTS < DTS errors we can simply move all DTS back. This increases CTS without causing buffer gaps or decode errors in Safari
        _utils_logger__WEBPACK_IMPORTED_MODULE_5__["logger"].warn("PTS < DTS detected in video samples, shifting DTS by " + Object(_utils_timescale_conversion__WEBPACK_IMPORTED_MODULE_7__["toMsFromMpegTsClock"])(ptsDtsShift, true) + " ms to overcome this issue");

        for (var _i2 = 0; _i2 < nbSamples; _i2++) {
          inputSamples[_i2].dts = inputSamples[_i2].dts + ptsDtsShift;
        }
      }

      firstDTS = inputSamples[0].dts;
    } // if fragment are contiguous, detect hole/overlapping between fragments


    if (contiguous) {
      // check timestamp continuity across consecutive fragments (this is to remove inter-fragment gap/hole)
      var delta = firstDTS - nextAvcDts;
      var foundHole = delta > averageSampleDuration;
      var foundOverlap = delta < -1;

      if (foundHole || foundOverlap) {
        if (foundHole) {
          _utils_logger__WEBPACK_IMPORTED_MODULE_5__["logger"].warn("AVC: " + Object(_utils_timescale_conversion__WEBPACK_IMPORTED_MODULE_7__["toMsFromMpegTsClock"])(delta, true) + " ms (" + delta + "dts) hole between fragments detected, filling it");
        } else {
          _utils_logger__WEBPACK_IMPORTED_MODULE_5__["logger"].warn("AVC: " + Object(_utils_timescale_conversion__WEBPACK_IMPORTED_MODULE_7__["toMsFromMpegTsClock"])(-delta, true) + " ms (" + delta + "dts) overlapping between fragments detected");
        }

        firstDTS = nextAvcDts;
        var firstPTS = inputSamples[0].pts - delta;
        inputSamples[0].dts = firstDTS;
        inputSamples[0].pts = firstPTS;
        _utils_logger__WEBPACK_IMPORTED_MODULE_5__["logger"].log("Video: First PTS/DTS adjusted: " + Object(_utils_timescale_conversion__WEBPACK_IMPORTED_MODULE_7__["toMsFromMpegTsClock"])(firstPTS, true) + "/" + Object(_utils_timescale_conversion__WEBPACK_IMPORTED_MODULE_7__["toMsFromMpegTsClock"])(firstDTS, true) + ", delta: " + Object(_utils_timescale_conversion__WEBPACK_IMPORTED_MODULE_7__["toMsFromMpegTsClock"])(delta, true) + " ms");
      }
    }

    if (requiresPositiveDts) {
      firstDTS = Math.max(0, firstDTS);
    }

    var nbNalu = 0;
    var naluLen = 0;

    for (var _i3 = 0; _i3 < nbSamples; _i3++) {
      // compute total/avc sample length and nb of NAL units
      var _sample = inputSamples[_i3];
      var units = _sample.units;
      var nbUnits = units.length;
      var sampleLen = 0;

      for (var j = 0; j < nbUnits; j++) {
        sampleLen += units[j].data.length;
      }

      naluLen += sampleLen;
      nbNalu += nbUnits;
      _sample.length = sampleLen; // normalize PTS/DTS
      // ensure sample monotonic DTS

      _sample.dts = Math.max(_sample.dts, firstDTS); // ensure that computed value is greater or equal than sample DTS

      _sample.pts = Math.max(_sample.pts, _sample.dts, 0);
      minPTS = Math.min(_sample.pts, minPTS);
      maxPTS = Math.max(_sample.pts, maxPTS);
    }

    lastDTS = inputSamples[nbSamples - 1].dts;
    /* concatenate the video data and construct the mdat in place
      (need 8 more bytes to fill length and mpdat type) */

    var mdatSize = naluLen + 4 * nbNalu + 8;
    var mdat;

    try {
      mdat = new Uint8Array(mdatSize);
    } catch (err) {
      this.observer.emit(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].ERROR, _events__WEBPACK_IMPORTED_MODULE_3__["Events"].ERROR, {
        type: _errors__WEBPACK_IMPORTED_MODULE_4__["ErrorTypes"].MUX_ERROR,
        details: _errors__WEBPACK_IMPORTED_MODULE_4__["ErrorDetails"].REMUX_ALLOC_ERROR,
        fatal: false,
        bytes: mdatSize,
        reason: "fail allocating video mdat " + mdatSize
      });
      return;
    }

    var view = new DataView(mdat.buffer);
    view.setUint32(0, mdatSize);
    mdat.set(_mp4_generator__WEBPACK_IMPORTED_MODULE_2__["default"].types.mdat, 4);

    for (var _i4 = 0; _i4 < nbSamples; _i4++) {
      var avcSample = inputSamples[_i4];
      var avcSampleUnits = avcSample.units;
      var mp4SampleLength = 0; // convert NALU bitstream to MP4 format (prepend NALU with size field)

      for (var _j = 0, _nbUnits = avcSampleUnits.length; _j < _nbUnits; _j++) {
        var unit = avcSampleUnits[_j];
        var unitData = unit.data;
        var unitDataLen = unit.data.byteLength;
        view.setUint32(offset, unitDataLen);
        offset += 4;
        mdat.set(unitData, offset);
        offset += unitDataLen;
        mp4SampleLength += 4 + unitDataLen;
      } // expected sample duration is the Decoding Timestamp diff of consecutive samples


      if (_i4 < nbSamples - 1) {
        mp4SampleDuration = inputSamples[_i4 + 1].dts - avcSample.dts;
      } else {
        var config = this.config;
        var lastFrameDuration = avcSample.dts - inputSamples[_i4 > 0 ? _i4 - 1 : _i4].dts;

        if (config.stretchShortVideoTrack && this.nextAudioPts !== null) {
          // In some cases, a segment's audio track duration may exceed the video track duration.
          // Since we've already remuxed audio, and we know how long the audio track is, we look to
          // see if the delta to the next segment is longer than maxBufferHole.
          // If so, playback would potentially get stuck, so we artificially inflate
          // the duration of the last frame to minimize any potential gap between segments.
          var gapTolerance = Math.floor(config.maxBufferHole * timeScale);
          var deltaToFrameEnd = (audioTrackLength ? minPTS + audioTrackLength * timeScale : this.nextAudioPts) - avcSample.pts;

          if (deltaToFrameEnd > gapTolerance) {
            // We subtract lastFrameDuration from deltaToFrameEnd to try to prevent any video
            // frame overlap. maxBufferHole should be >> lastFrameDuration anyway.
            mp4SampleDuration = deltaToFrameEnd - lastFrameDuration;

            if (mp4SampleDuration < 0) {
              mp4SampleDuration = lastFrameDuration;
            }

            _utils_logger__WEBPACK_IMPORTED_MODULE_5__["logger"].log("[mp4-remuxer]: It is approximately " + deltaToFrameEnd / 90 + " ms to the next segment; using duration " + mp4SampleDuration / 90 + " ms for the last video frame.");
          } else {
            mp4SampleDuration = lastFrameDuration;
          }
        } else {
          mp4SampleDuration = lastFrameDuration;
        }
      }

      var compositionTimeOffset = Math.round(avcSample.pts - avcSample.dts);
      outputSamples.push(new Mp4Sample(avcSample.key, mp4SampleDuration, mp4SampleLength, compositionTimeOffset));
    }

    if (outputSamples.length && chromeVersion && chromeVersion < 70) {
      // Chrome workaround, mark first sample as being a Random Access Point (keyframe) to avoid sourcebuffer append issue
      // https://code.google.com/p/chromium/issues/detail?id=229412
      var flags = outputSamples[0].flags;
      flags.dependsOn = 2;
      flags.isNonSync = 0;
    }

    console.assert(mp4SampleDuration !== undefined, 'mp4SampleDuration must be computed'); // next AVC sample DTS should be equal to last sample DTS + last sample duration (in PES timescale)

    this.nextAvcDts = nextAvcDts = lastDTS + mp4SampleDuration;
    this.isVideoContiguous = true;
    var moof = _mp4_generator__WEBPACK_IMPORTED_MODULE_2__["default"].moof(track.sequenceNumber++, firstDTS, _extends({}, track, {
      samples: outputSamples
    }));
    var type = 'video';
    var data = {
      data1: moof,
      data2: mdat,
      startPTS: minPTS / timeScale,
      endPTS: (maxPTS + mp4SampleDuration) / timeScale,
      startDTS: firstDTS / timeScale,
      endDTS: nextAvcDts / timeScale,
      type: type,
      hasAudio: false,
      hasVideo: true,
      nb: outputSamples.length,
      dropped: track.dropped
    };
    track.samples = [];
    track.dropped = 0;
    console.assert(mdat.length, 'MDAT length must not be zero');
    return data;
  };

  _proto.remuxAudio = function remuxAudio(track, timeOffset, contiguous, accurateTimeOffset, videoTimeOffset) {
    var inputTimeScale = track.inputTimeScale;
    var mp4timeScale = track.samplerate ? track.samplerate : inputTimeScale;
    var scaleFactor = inputTimeScale / mp4timeScale;
    var mp4SampleDuration = track.isAAC ? AAC_SAMPLES_PER_FRAME : MPEG_AUDIO_SAMPLE_PER_FRAME;
    var inputSampleDuration = mp4SampleDuration * scaleFactor;
    var initPTS = this._initPTS;
    var rawMPEG = !track.isAAC && this.typeSupported.mpeg;
    var outputSamples = [];
    var inputSamples = track.samples;
    var offset = rawMPEG ? 0 : 8;
    var nextAudioPts = this.nextAudioPts || -1; // window.audioSamples ? window.audioSamples.push(inputSamples.map(s => s.pts)) : (window.audioSamples = [inputSamples.map(s => s.pts)]);
    // for audio samples, also consider consecutive fragments as being contiguous (even if a level switch occurs),
    // for sake of clarity:
    // consecutive fragments are frags with
    //  - less than 100ms gaps between new time offset (if accurate) and next expected PTS OR
    //  - less than 20 audio frames distance
    // contiguous fragments are consecutive fragments from same quality level (same level, new SN = old SN + 1)
    // this helps ensuring audio continuity
    // and this also avoids audio glitches/cut when switching quality, or reporting wrong duration on first audio frame

    var timeOffsetMpegTS = timeOffset * inputTimeScale;
    this.isAudioContiguous = contiguous = contiguous || inputSamples.length && nextAudioPts > 0 && (accurateTimeOffset && Math.abs(timeOffsetMpegTS - nextAudioPts) < 9000 || Math.abs(normalizePts(inputSamples[0].pts - initPTS, timeOffsetMpegTS) - nextAudioPts) < 20 * inputSampleDuration); // compute normalized PTS

    inputSamples.forEach(function (sample) {
      sample.pts = normalizePts(sample.pts - initPTS, timeOffsetMpegTS);
    });

    if (!contiguous || nextAudioPts < 0) {
      // filter out sample with negative PTS that are not playable anyway
      // if we don't remove these negative samples, they will shift all audio samples forward.
      // leading to audio overlap between current / next fragment
      inputSamples = inputSamples.filter(function (sample) {
        return sample.pts >= 0;
      }); // in case all samples have negative PTS, and have been filtered out, return now

      if (!inputSamples.length) {
        return;
      }

      if (videoTimeOffset === 0) {
        // Set the start to 0 to match video so that start gaps larger than inputSampleDuration are filled with silence
        nextAudioPts = 0;
      } else if (accurateTimeOffset) {
        // When not seeking, not live, and LevelDetails.PTSKnown, use fragment start as predicted next audio PTS
        nextAudioPts = Math.max(0, timeOffsetMpegTS);
      } else {
        // if frags are not contiguous and if we cant trust time offset, let's use first sample PTS as next audio PTS
        nextAudioPts = inputSamples[0].pts;
      }
    } // If the audio track is missing samples, the frames seem to get "left-shifted" within the
    // resulting mp4 segment, causing sync issues and leaving gaps at the end of the audio segment.
    // In an effort to prevent this from happening, we inject frames here where there are gaps.
    // When possible, we inject a silent frame; when that's not possible, we duplicate the last
    // frame.


    if (track.isAAC) {
      var alignedWithVideo = videoTimeOffset !== undefined;
      var maxAudioFramesDrift = this.config.maxAudioFramesDrift;

      for (var i = 0, nextPts = nextAudioPts; i < inputSamples.length; i++) {
        // First, let's see how far off this frame is from where we expect it to be
        var sample = inputSamples[i];
        var pts = sample.pts;
        var delta = pts - nextPts;
        var duration = Math.abs(1000 * delta / inputTimeScale); // When remuxing with video, if we're overlapping by more than a duration, drop this sample to stay in sync

        if (delta <= -maxAudioFramesDrift * inputSampleDuration && alignedWithVideo) {
          if (i === 0) {
            _utils_logger__WEBPACK_IMPORTED_MODULE_5__["logger"].warn("Audio frame @ " + (pts / inputTimeScale).toFixed(3) + "s overlaps nextAudioPts by " + Math.round(1000 * delta / inputTimeScale) + " ms.");
            this.nextAudioPts = nextAudioPts = nextPts = pts;
          }
        } // eslint-disable-line brace-style
        // Insert missing frames if:
        // 1: We're more than maxAudioFramesDrift frame away
        // 2: Not more than MAX_SILENT_FRAME_DURATION away
        // 3: currentTime (aka nextPtsNorm) is not 0
        // 4: remuxing with video (videoTimeOffset !== undefined)
        else if (delta >= maxAudioFramesDrift * inputSampleDuration && duration < MAX_SILENT_FRAME_DURATION && alignedWithVideo) {
          var missing = Math.round(delta / inputSampleDuration); // Adjust nextPts so that silent samples are aligned with media pts. This will prevent media samples from
          // later being shifted if nextPts is based on timeOffset and delta is not a multiple of inputSampleDuration.

          nextPts = pts - missing * inputSampleDuration;

          if (nextPts < 0) {
            missing--;
            nextPts += inputSampleDuration;
          }

          if (i === 0) {
            this.nextAudioPts = nextAudioPts = nextPts;
          }

          _utils_logger__WEBPACK_IMPORTED_MODULE_5__["logger"].warn("[mp4-remuxer]: Injecting " + missing + " audio frame @ " + (nextPts / inputTimeScale).toFixed(3) + "s due to " + Math.round(1000 * delta / inputTimeScale) + " ms gap.");

          for (var j = 0; j < missing; j++) {
            var newStamp = Math.max(nextPts, 0);
            var fillFrame = _aac_helper__WEBPACK_IMPORTED_MODULE_1__["default"].getSilentFrame(track.manifestCodec || track.codec, track.channelCount);

            if (!fillFrame) {
              _utils_logger__WEBPACK_IMPORTED_MODULE_5__["logger"].log('[mp4-remuxer]: Unable to get silent frame for given audio codec; duplicating last frame instead.');
              fillFrame = sample.unit.subarray();
            }

            inputSamples.splice(i, 0, {
              unit: fillFrame,
              pts: newStamp
            });
            nextPts += inputSampleDuration;
            i++;
          }
        }

        sample.pts = nextPts;
        nextPts += inputSampleDuration;
      }
    }

    var firstPTS = null;
    var lastPTS = null;
    var mdat;
    var mdatSize = 0;
    var sampleLength = inputSamples.length;

    while (sampleLength--) {
      mdatSize += inputSamples[sampleLength].unit.byteLength;
    }

    for (var _j2 = 0, _nbSamples = inputSamples.length; _j2 < _nbSamples; _j2++) {
      var audioSample = inputSamples[_j2];
      var unit = audioSample.unit;
      var _pts = audioSample.pts;

      if (lastPTS !== null) {
        // If we have more than one sample, set the duration of the sample to the "real" duration; the PTS diff with
        // the previous sample
        var prevSample = outputSamples[_j2 - 1];
        prevSample.duration = Math.round((_pts - lastPTS) / scaleFactor);
      } else {
        if (contiguous && track.isAAC) {
          // set PTS/DTS to expected PTS/DTS
          _pts = nextAudioPts;
        } // remember first PTS of our audioSamples


        firstPTS = _pts;

        if (mdatSize > 0) {
          /* concatenate the audio data and construct the mdat in place
            (need 8 more bytes to fill length and mdat type) */
          mdatSize += offset;

          try {
            mdat = new Uint8Array(mdatSize);
          } catch (err) {
            this.observer.emit(_events__WEBPACK_IMPORTED_MODULE_3__["Events"].ERROR, _events__WEBPACK_IMPORTED_MODULE_3__["Events"].ERROR, {
              type: _errors__WEBPACK_IMPORTED_MODULE_4__["ErrorTypes"].MUX_ERROR,
              details: _errors__WEBPACK_IMPORTED_MODULE_4__["ErrorDetails"].REMUX_ALLOC_ERROR,
              fatal: false,
              bytes: mdatSize,
              reason: "fail allocating audio mdat " + mdatSize
            });
            return;
          }

          if (!rawMPEG) {
            var view = new DataView(mdat.buffer);
            view.setUint32(0, mdatSize);
            mdat.set(_mp4_generator__WEBPACK_IMPORTED_MODULE_2__["default"].types.mdat, 4);
          }
        } else {
          // no audio samples
          return;
        }
      }

      mdat.set(unit, offset);
      var unitLen = unit.byteLength;
      offset += unitLen; // Default the sample's duration to the computed mp4SampleDuration, which will either be 1024 for AAC or 1152 for MPEG
      // In the case that we have 1 sample, this will be the duration. If we have more than one sample, the duration
      // becomes the PTS diff with the previous sample

      outputSamples.push(new Mp4Sample(true, mp4SampleDuration, unitLen, 0));
      lastPTS = _pts;
    } // We could end up with no audio samples if all input samples were overlapping with the previously remuxed ones


    var nbSamples = outputSamples.length;

    if (!nbSamples) {
      return;
    } // The next audio sample PTS should be equal to last sample PTS + duration


    var lastSample = outputSamples[outputSamples.length - 1];
    this.nextAudioPts = nextAudioPts = lastPTS + scaleFactor * lastSample.duration; // Set the track samples from inputSamples to outputSamples before remuxing

    var moof = rawMPEG ? new Uint8Array(0) : _mp4_generator__WEBPACK_IMPORTED_MODULE_2__["default"].moof(track.sequenceNumber++, firstPTS / scaleFactor, _extends({}, track, {
      samples: outputSamples
    })); // Clear the track samples. This also clears the samples array in the demuxer, since the reference is shared

    track.samples = [];
    var start = firstPTS / inputTimeScale;
    var end = nextAudioPts / inputTimeScale;
    var type = 'audio';
    var audioData = {
      data1: moof,
      data2: mdat,
      startPTS: start,
      endPTS: end,
      startDTS: start,
      endDTS: end,
      type: type,
      hasAudio: true,
      hasVideo: false,
      nb: nbSamples
    };
    this.isAudioContiguous = true;
    console.assert(mdat.length, 'MDAT length must not be zero');
    return audioData;
  };

  _proto.remuxEmptyAudio = function remuxEmptyAudio(track, timeOffset, contiguous, videoData) {
    var inputTimeScale = track.inputTimeScale;
    var mp4timeScale = track.samplerate ? track.samplerate : inputTimeScale;
    var scaleFactor = inputTimeScale / mp4timeScale;
    var nextAudioPts = this.nextAudioPts; // sync with video's timestamp

    var startDTS = (nextAudioPts !== null ? nextAudioPts : videoData.startDTS * inputTimeScale) + this._initDTS;
    var endDTS = videoData.endDTS * inputTimeScale + this._initDTS; // one sample's duration value

    var frameDuration = scaleFactor * AAC_SAMPLES_PER_FRAME; // samples count of this segment's duration

    var nbSamples = Math.ceil((endDTS - startDTS) / frameDuration); // silent frame

    var silentFrame = _aac_helper__WEBPACK_IMPORTED_MODULE_1__["default"].getSilentFrame(track.manifestCodec || track.codec, track.channelCount);
    _utils_logger__WEBPACK_IMPORTED_MODULE_5__["logger"].warn('[mp4-remuxer]: remux empty Audio'); // Can't remux if we can't generate a silent frame...

    if (!silentFrame) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_5__["logger"].trace('[mp4-remuxer]: Unable to remuxEmptyAudio since we were unable to get a silent frame for given audio codec');
      return;
    }

    var samples = [];

    for (var i = 0; i < nbSamples; i++) {
      var stamp = startDTS + i * frameDuration;
      samples.push({
        unit: silentFrame,
        pts: stamp,
        dts: stamp
      });
    }

    track.samples = samples;
    return this.remuxAudio(track, timeOffset, contiguous, false);
  };

  _proto.remuxID3 = function remuxID3(track, timeOffset) {
    var length = track.samples.length;

    if (!length) {
      return;
    }

    var inputTimeScale = track.inputTimeScale;
    var initPTS = this._initPTS;
    var initDTS = this._initDTS;

    for (var index = 0; index < length; index++) {
      var sample = track.samples[index]; // setting id3 pts, dts to relative time
      // using this._initPTS and this._initDTS to calculate relative time

      sample.pts = normalizePts(sample.pts - initPTS, timeOffset * inputTimeScale) / inputTimeScale;
      sample.dts = normalizePts(sample.dts - initDTS, timeOffset * inputTimeScale) / inputTimeScale;
    }

    var samples = track.samples;
    track.samples = [];
    return {
      samples: samples
    };
  };

  _proto.remuxText = function remuxText(track, timeOffset) {
    var length = track.samples.length;

    if (!length) {
      return;
    }

    var inputTimeScale = track.inputTimeScale;
    var initPTS = this._initPTS;

    for (var index = 0; index < length; index++) {
      var sample = track.samples[index]; // setting text pts, dts to relative time
      // using this._initPTS and this._initDTS to calculate relative time

      sample.pts = normalizePts(sample.pts - initPTS, timeOffset * inputTimeScale) / inputTimeScale;
    }

    track.samples.sort(function (a, b) {
      return a.pts - b.pts;
    });
    var samples = track.samples;
    track.samples = [];
    return {
      samples: samples
    };
  };

  return MP4Remuxer;
}();


function normalizePts(value, reference) {
  var offset;

  if (reference === null) {
    return value;
  }

  if (reference < value) {
    // - 2^33
    offset = -8589934592;
  } else {
    // + 2^33
    offset = 8589934592;
  }
  /* PTS is 33bit (from 0 to 2^33 -1)
    if diff between value and reference is bigger than half of the amplitude (2^32) then it means that
    PTS looping occured. fill the gap */


  while (Math.abs(value - reference) > 4294967296) {
    value += offset;
  }

  return value;
}

function findKeyframeIndex(samples) {
  for (var i = 0; i < samples.length; i++) {
    if (samples[i].key) {
      return i;
    }
  }

  return -1;
}

var Mp4Sample = function Mp4Sample(isKeyframe, duration, size, cts) {
  this.size = void 0;
  this.duration = void 0;
  this.cts = void 0;
  this.flags = void 0;
  this.duration = duration;
  this.size = size;
  this.cts = cts;
  this.flags = new Mp4SampleFlags(isKeyframe);
};

var Mp4SampleFlags = function Mp4SampleFlags(isKeyframe) {
  this.isLeading = 0;
  this.isDependedOn = 0;
  this.hasRedundancy = 0;
  this.degradPrio = 0;
  this.dependsOn = 1;
  this.isNonSync = 1;
  this.dependsOn = isKeyframe ? 2 : 1;
  this.isNonSync = isKeyframe ? 0 : 1;
};

/***/ }),

/***/ "./src/remux/passthrough-remuxer.ts":
/*!******************************************!*\
  !*** ./src/remux/passthrough-remuxer.ts ***!
  \******************************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony import */ var _home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./src/polyfills/number */ "./src/polyfills/number.ts");
/* harmony import */ var _utils_mp4_tools__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../utils/mp4-tools */ "./src/utils/mp4-tools.ts");
/* harmony import */ var _loader_fragment__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../loader/fragment */ "./src/loader/fragment.ts");
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../utils/logger */ "./src/utils/logger.ts");






var PassThroughRemuxer = /*#__PURE__*/function () {
  function PassThroughRemuxer() {
    this.emitInitSegment = false;
    this.audioCodec = void 0;
    this.videoCodec = void 0;
    this.initData = void 0;
    this.initPTS = void 0;
    this.initTracks = void 0;
    this.lastEndDTS = null;
  }

  var _proto = PassThroughRemuxer.prototype;

  _proto.destroy = function destroy() {};

  _proto.resetTimeStamp = function resetTimeStamp(defaultInitPTS) {
    this.initPTS = defaultInitPTS;
    this.lastEndDTS = null;
  };

  _proto.resetNextTimestamp = function resetNextTimestamp() {
    this.lastEndDTS = null;
  };

  _proto.resetInitSegment = function resetInitSegment(initSegment, audioCodec, videoCodec) {
    this.audioCodec = audioCodec;
    this.videoCodec = videoCodec;
    this.generateInitSegment(initSegment);
    this.emitInitSegment = true;
  };

  _proto.generateInitSegment = function generateInitSegment(initSegment) {
    var audioCodec = this.audioCodec,
        videoCodec = this.videoCodec;

    if (!initSegment || !initSegment.byteLength) {
      this.initTracks = undefined;
      this.initData = undefined;
      return;
    }

    var initData = this.initData = Object(_utils_mp4_tools__WEBPACK_IMPORTED_MODULE_1__["parseInitSegment"])(initSegment); // Get codec from initSegment or fallback to default

    if (!audioCodec) {
      audioCodec = getParsedTrackCodec(initData.audio, _loader_fragment__WEBPACK_IMPORTED_MODULE_2__["ElementaryStreamTypes"].AUDIO);
    }

    if (!videoCodec) {
      videoCodec = getParsedTrackCodec(initData.video, _loader_fragment__WEBPACK_IMPORTED_MODULE_2__["ElementaryStreamTypes"].VIDEO);
    }

    var tracks = {};

    if (initData.audio && initData.video) {
      tracks.audiovideo = {
        container: 'video/mp4',
        codec: audioCodec + ',' + videoCodec,
        initSegment: initSegment,
        id: 'main'
      };
    } else if (initData.audio) {
      tracks.audio = {
        container: 'audio/mp4',
        codec: audioCodec,
        initSegment: initSegment,
        id: 'audio'
      };
    } else if (initData.video) {
      tracks.video = {
        container: 'video/mp4',
        codec: videoCodec,
        initSegment: initSegment,
        id: 'main'
      };
    } else {
      _utils_logger__WEBPACK_IMPORTED_MODULE_3__["logger"].warn('[passthrough-remuxer.ts]: initSegment does not contain moov or trak boxes.');
    }

    this.initTracks = tracks;
  };

  _proto.remux = function remux(audioTrack, videoTrack, id3Track, textTrack, timeOffset) {
    var initPTS = this.initPTS,
        lastEndDTS = this.lastEndDTS;
    var result = {
      audio: undefined,
      video: undefined,
      text: textTrack,
      id3: id3Track,
      initSegment: undefined
    }; // If we haven't yet set a lastEndDTS, or it was reset, set it to the provided timeOffset. We want to use the
    // lastEndDTS over timeOffset whenever possible; during progressive playback, the media source will not update
    // the media duration (which is what timeOffset is provided as) before we need to process the next chunk.

    if (!Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(lastEndDTS)) {
      lastEndDTS = this.lastEndDTS = timeOffset || 0;
    } // The binary segment data is added to the videoTrack in the mp4demuxer. We don't check to see if the data is only
    // audio or video (or both); adding it to video was an arbitrary choice.


    var data = videoTrack.samples;

    if (!data || !data.length) {
      return result;
    }

    var initSegment = {
      initPTS: undefined,
      timescale: 1
    };
    var initData = this.initData;

    if (!initData || !initData.length) {
      this.generateInitSegment(data);
      initData = this.initData;
    }

    if (!initData || !initData.length) {
      // We can't remux if the initSegment could not be generated
      _utils_logger__WEBPACK_IMPORTED_MODULE_3__["logger"].warn('[passthrough-remuxer.ts]: Failed to generate initSegment.');
      return result;
    }

    if (this.emitInitSegment) {
      initSegment.tracks = this.initTracks;
      this.emitInitSegment = false;
    }

    if (!Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(initPTS)) {
      this.initPTS = initSegment.initPTS = initPTS = computeInitPTS(initData, data, lastEndDTS);
    }

    var duration = Object(_utils_mp4_tools__WEBPACK_IMPORTED_MODULE_1__["getDuration"])(data, initData);
    var startDTS = lastEndDTS;
    var endDTS = duration + startDTS;
    Object(_utils_mp4_tools__WEBPACK_IMPORTED_MODULE_1__["offsetStartDTS"])(initData, data, initPTS);

    if (duration > 0) {
      this.lastEndDTS = endDTS;
    } else {
      _utils_logger__WEBPACK_IMPORTED_MODULE_3__["logger"].warn('Duration parsed from mp4 should be greater than zero');
      this.resetNextTimestamp();
    }

    var hasAudio = !!initData.audio;
    var hasVideo = !!initData.video;
    var type = '';

    if (hasAudio) {
      type += 'audio';
    }

    if (hasVideo) {
      type += 'video';
    }

    var track = {
      data1: data,
      startPTS: startDTS,
      startDTS: startDTS,
      endPTS: endDTS,
      endDTS: endDTS,
      type: type,
      hasAudio: hasAudio,
      hasVideo: hasVideo,
      nb: 1,
      dropped: 0
    };
    result.audio = track.type === 'audio' ? track : undefined;
    result.video = track.type !== 'audio' ? track : undefined;
    result.text = textTrack;
    result.id3 = id3Track;
    result.initSegment = initSegment;
    return result;
  };

  return PassThroughRemuxer;
}();

var computeInitPTS = function computeInitPTS(initData, data, timeOffset) {
  return Object(_utils_mp4_tools__WEBPACK_IMPORTED_MODULE_1__["getStartDTS"])(initData, data) - timeOffset;
};

function getParsedTrackCodec(track, type) {
  var parsedCodec = track === null || track === void 0 ? void 0 : track.codec;

  if (parsedCodec && parsedCodec.length > 4) {
    return parsedCodec;
  } // Since mp4-tools cannot parse full codec string (see 'TODO: Parse codec details'... in mp4-tools)
  // Provide defaults based on codec type
  // This allows for some playback of some fmp4 playlists without CODECS defined in manifest


  if (parsedCodec === 'hvc1') {
    return 'hvc1.1.c.L120.90';
  }

  if (parsedCodec === 'av01') {
    return 'av01.0.04M.08';
  }

  if (parsedCodec === 'avc1' || type === _loader_fragment__WEBPACK_IMPORTED_MODULE_2__["ElementaryStreamTypes"].VIDEO) {
    return 'avc1.42e01e';
  }

  return 'mp4a.40.5';
}

/* harmony default export */ __webpack_exports__["default"] = (PassThroughRemuxer);

/***/ }),

/***/ "./src/task-loop.ts":
/*!**************************!*\
  !*** ./src/task-loop.ts ***!
  \**************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "default", function() { return TaskLoop; });
/**
 * Sub-class specialization of EventHandler base class.
 *
 * TaskLoop allows to schedule a task function being called (optionnaly repeatedly) on the main loop,
 * scheduled asynchroneously, avoiding recursive calls in the same tick.
 *
 * The task itself is implemented in `doTick`. It can be requested and called for single execution
 * using the `tick` method.
 *
 * It will be assured that the task execution method (`tick`) only gets called once per main loop "tick",
 * no matter how often it gets requested for execution. Execution in further ticks will be scheduled accordingly.
 *
 * If further execution requests have already been scheduled on the next tick, it can be checked with `hasNextTick`,
 * and cancelled with `clearNextTick`.
 *
 * The task can be scheduled as an interval repeatedly with a period as parameter (see `setInterval`, `clearInterval`).
 *
 * Sub-classes need to implement the `doTick` method which will effectively have the task execution routine.
 *
 * Further explanations:
 *
 * The baseclass has a `tick` method that will schedule the doTick call. It may be called synchroneously
 * only for a stack-depth of one. On re-entrant calls, sub-sequent calls are scheduled for next main loop ticks.
 *
 * When the task execution (`tick` method) is called in re-entrant way this is detected and
 * we are limiting the task execution per call stack to exactly one, but scheduling/post-poning further
 * task processing on the next main loop iteration (also known as "next tick" in the Node/JS runtime lingo).
 */
var TaskLoop = /*#__PURE__*/function () {
  function TaskLoop() {
    this._boundTick = void 0;
    this._tickTimer = null;
    this._tickInterval = null;
    this._tickCallCount = 0;
    this._boundTick = this.tick.bind(this);
  }

  var _proto = TaskLoop.prototype;

  _proto.destroy = function destroy() {
    this.onHandlerDestroying();
    this.onHandlerDestroyed();
  };

  _proto.onHandlerDestroying = function onHandlerDestroying() {
    // clear all timers before unregistering from event bus
    this.clearNextTick();
    this.clearInterval();
  };

  _proto.onHandlerDestroyed = function onHandlerDestroyed() {}
  /**
   * @returns {boolean}
   */
  ;

  _proto.hasInterval = function hasInterval() {
    return !!this._tickInterval;
  }
  /**
   * @returns {boolean}
   */
  ;

  _proto.hasNextTick = function hasNextTick() {
    return !!this._tickTimer;
  }
  /**
   * @param {number} millis Interval time (ms)
   * @returns {boolean} True when interval has been scheduled, false when already scheduled (no effect)
   */
  ;

  _proto.setInterval = function setInterval(millis) {
    if (!this._tickInterval) {
      this._tickInterval = self.setInterval(this._boundTick, millis);
      return true;
    }

    return false;
  }
  /**
   * @returns {boolean} True when interval was cleared, false when none was set (no effect)
   */
  ;

  _proto.clearInterval = function clearInterval() {
    if (this._tickInterval) {
      self.clearInterval(this._tickInterval);
      this._tickInterval = null;
      return true;
    }

    return false;
  }
  /**
   * @returns {boolean} True when timeout was cleared, false when none was set (no effect)
   */
  ;

  _proto.clearNextTick = function clearNextTick() {
    if (this._tickTimer) {
      self.clearTimeout(this._tickTimer);
      this._tickTimer = null;
      return true;
    }

    return false;
  }
  /**
   * Will call the subclass doTick implementation in this main loop tick
   * or in the next one (via setTimeout(,0)) in case it has already been called
   * in this tick (in case this is a re-entrant call).
   */
  ;

  _proto.tick = function tick() {
    this._tickCallCount++;

    if (this._tickCallCount === 1) {
      this.doTick(); // re-entrant call to tick from previous doTick call stack
      // -> schedule a call on the next main loop iteration to process this task processing request

      if (this._tickCallCount > 1) {
        // make sure only one timer exists at any time at max
        this.tickImmediate();
      }

      this._tickCallCount = 0;
    }
  };

  _proto.tickImmediate = function tickImmediate() {
    this.clearNextTick();
    this._tickTimer = self.setTimeout(this._boundTick, 0);
  }
  /**
   * For subclass to implement task logic
   * @abstract
   */
  ;

  _proto.doTick = function doTick() {};

  return TaskLoop;
}();



/***/ }),

/***/ "./src/types/cmcd.ts":
/*!***************************!*\
  !*** ./src/types/cmcd.ts ***!
  \***************************/
/*! exports provided: CMCDVersion, CMCDObjectType, CMCDStreamingFormat, CMCDStreamType */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "CMCDVersion", function() { return CMCDVersion; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "CMCDObjectType", function() { return CMCDObjectType; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "CMCDStreamingFormat", function() { return CMCDStreamingFormat; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "CMCDStreamType", function() { return CMCDStreamType; });
/**
 * CMCD spec version
 */
var CMCDVersion = 1;
/**
 * CMCD Object Type
 */

var CMCDObjectType;
/**
 * CMCD Streaming Format
 */

(function (CMCDObjectType) {
  CMCDObjectType["MANIFEST"] = "m";
  CMCDObjectType["AUDIO"] = "a";
  CMCDObjectType["VIDEO"] = "v";
  CMCDObjectType["MUXED"] = "av";
  CMCDObjectType["INIT"] = "i";
  CMCDObjectType["CAPTION"] = "c";
  CMCDObjectType["TIMED_TEXT"] = "tt";
  CMCDObjectType["KEY"] = "k";
  CMCDObjectType["OTHER"] = "o";
})(CMCDObjectType || (CMCDObjectType = {}));

var CMCDStreamingFormat;
/**
 * CMCD Streaming Type
 */

(function (CMCDStreamingFormat) {
  CMCDStreamingFormat["DASH"] = "d";
  CMCDStreamingFormat["HLS"] = "h";
  CMCDStreamingFormat["SMOOTH"] = "s";
  CMCDStreamingFormat["OTHER"] = "o";
})(CMCDStreamingFormat || (CMCDStreamingFormat = {}));

var CMCDStreamType;
/**
 * CMCD Headers
 */

(function (CMCDStreamType) {
  CMCDStreamType["VOD"] = "v";
  CMCDStreamType["LIVE"] = "l";
})(CMCDStreamType || (CMCDStreamType = {}));

/***/ }),

/***/ "./src/types/level.ts":
/*!****************************!*\
  !*** ./src/types/level.ts ***!
  \****************************/
/*! exports provided: HlsSkip, getSkipValue, HlsUrlParameters, Level */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "HlsSkip", function() { return HlsSkip; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getSkipValue", function() { return getSkipValue; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "HlsUrlParameters", function() { return HlsUrlParameters; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "Level", function() { return Level; });
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var HlsSkip;

(function (HlsSkip) {
  HlsSkip["No"] = "";
  HlsSkip["Yes"] = "YES";
  HlsSkip["v2"] = "v2";
})(HlsSkip || (HlsSkip = {}));

function getSkipValue(details, msn) {
  var canSkipUntil = details.canSkipUntil,
      canSkipDateRanges = details.canSkipDateRanges,
      endSN = details.endSN;
  var snChangeGoal = msn !== undefined ? msn - endSN : 0;

  if (canSkipUntil && snChangeGoal < canSkipUntil) {
    if (canSkipDateRanges) {
      return HlsSkip.v2;
    }

    return HlsSkip.Yes;
  }

  return HlsSkip.No;
}
var HlsUrlParameters = /*#__PURE__*/function () {
  function HlsUrlParameters(msn, part, skip) {
    this.msn = void 0;
    this.part = void 0;
    this.skip = void 0;
    this.msn = msn;
    this.part = part;
    this.skip = skip;
  }

  var _proto = HlsUrlParameters.prototype;

  _proto.addDirectives = function addDirectives(uri) {
    var url = new self.URL(uri);

    if (this.msn !== undefined) {
      url.searchParams.set('_HLS_msn', this.msn.toString());
    }

    if (this.part !== undefined) {
      url.searchParams.set('_HLS_part', this.part.toString());
    }

    if (this.skip) {
      url.searchParams.set('_HLS_skip', this.skip);
    }

    return url.toString();
  };

  return HlsUrlParameters;
}();
var Level = /*#__PURE__*/function () {
  function Level(data) {
    this.attrs = void 0;
    this.audioCodec = void 0;
    this.bitrate = void 0;
    this.codecSet = void 0;
    this.height = void 0;
    this.id = void 0;
    this.name = void 0;
    this.videoCodec = void 0;
    this.width = void 0;
    this.unknownCodecs = void 0;
    this.audioGroupIds = void 0;
    this.details = void 0;
    this.fragmentError = 0;
    this.loadError = 0;
    this.loaded = void 0;
    this.realBitrate = 0;
    this.textGroupIds = void 0;
    this.url = void 0;
    this._urlId = 0;
    this.url = [data.url];
    this.attrs = data.attrs;
    this.bitrate = data.bitrate;

    if (data.details) {
      this.details = data.details;
    }

    this.id = data.id || 0;
    this.name = data.name;
    this.width = data.width || 0;
    this.height = data.height || 0;
    this.audioCodec = data.audioCodec;
    this.videoCodec = data.videoCodec;
    this.unknownCodecs = data.unknownCodecs;
    this.codecSet = [data.videoCodec, data.audioCodec].filter(function (c) {
      return c;
    }).join(',').replace(/\.[^.,]+/g, '');
  }

  _createClass(Level, [{
    key: "maxBitrate",
    get: function get() {
      return Math.max(this.realBitrate, this.bitrate);
    }
  }, {
    key: "uri",
    get: function get() {
      return this.url[this._urlId] || '';
    }
  }, {
    key: "urlId",
    get: function get() {
      return this._urlId;
    },
    set: function set(value) {
      var newValue = value % this.url.length;

      if (this._urlId !== newValue) {
        this.details = undefined;
        this._urlId = newValue;
      }
    }
  }]);

  return Level;
}();

/***/ }),

/***/ "./src/types/loader.ts":
/*!*****************************!*\
  !*** ./src/types/loader.ts ***!
  \*****************************/
/*! exports provided: PlaylistContextType, PlaylistLevelType */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "PlaylistContextType", function() { return PlaylistContextType; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "PlaylistLevelType", function() { return PlaylistLevelType; });
var PlaylistContextType;

(function (PlaylistContextType) {
  PlaylistContextType["MANIFEST"] = "manifest";
  PlaylistContextType["LEVEL"] = "level";
  PlaylistContextType["AUDIO_TRACK"] = "audioTrack";
  PlaylistContextType["SUBTITLE_TRACK"] = "subtitleTrack";
})(PlaylistContextType || (PlaylistContextType = {}));

var PlaylistLevelType;

(function (PlaylistLevelType) {
  PlaylistLevelType["MAIN"] = "main";
  PlaylistLevelType["AUDIO"] = "audio";
  PlaylistLevelType["SUBTITLE"] = "subtitle";
})(PlaylistLevelType || (PlaylistLevelType = {}));

/***/ }),

/***/ "./src/types/transmuxer.ts":
/*!*********************************!*\
  !*** ./src/types/transmuxer.ts ***!
  \*********************************/
/*! exports provided: ChunkMetadata */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "ChunkMetadata", function() { return ChunkMetadata; });
var ChunkMetadata = function ChunkMetadata(level, sn, id, size, part, partial) {
  if (size === void 0) {
    size = 0;
  }

  if (part === void 0) {
    part = -1;
  }

  if (partial === void 0) {
    partial = false;
  }

  this.level = void 0;
  this.sn = void 0;
  this.part = void 0;
  this.id = void 0;
  this.size = void 0;
  this.partial = void 0;
  this.transmuxing = getNewPerformanceTiming();
  this.buffering = {
    audio: getNewPerformanceTiming(),
    video: getNewPerformanceTiming(),
    audiovideo: getNewPerformanceTiming()
  };
  this.level = level;
  this.sn = sn;
  this.id = id;
  this.size = size;
  this.part = part;
  this.partial = partial;
};

function getNewPerformanceTiming() {
  return {
    start: 0,
    executeStart: 0,
    executeEnd: 0,
    end: 0
  };
}

/***/ }),

/***/ "./src/utils/attr-list.ts":
/*!********************************!*\
  !*** ./src/utils/attr-list.ts ***!
  \********************************/
/*! exports provided: AttrList */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "AttrList", function() { return AttrList; });
var DECIMAL_RESOLUTION_REGEX = /^(\d+)x(\d+)$/; // eslint-disable-line no-useless-escape

var ATTR_LIST_REGEX = /\s*(.+?)\s*=((?:\".*?\")|.*?)(?:,|$)/g; // eslint-disable-line no-useless-escape
// adapted from https://github.com/kanongil/node-m3u8parse/blob/master/attrlist.js

var AttrList = /*#__PURE__*/function () {
  function AttrList(attrs) {
    if (typeof attrs === 'string') {
      attrs = AttrList.parseAttrList(attrs);
    }

    for (var attr in attrs) {
      if (attrs.hasOwnProperty(attr)) {
        this[attr] = attrs[attr];
      }
    }
  }

  var _proto = AttrList.prototype;

  _proto.decimalInteger = function decimalInteger(attrName) {
    var intValue = parseInt(this[attrName], 10);

    if (intValue > Number.MAX_SAFE_INTEGER) {
      return Infinity;
    }

    return intValue;
  };

  _proto.hexadecimalInteger = function hexadecimalInteger(attrName) {
    if (this[attrName]) {
      var stringValue = (this[attrName] || '0x').slice(2);
      stringValue = (stringValue.length & 1 ? '0' : '') + stringValue;
      var value = new Uint8Array(stringValue.length / 2);

      for (var i = 0; i < stringValue.length / 2; i++) {
        value[i] = parseInt(stringValue.slice(i * 2, i * 2 + 2), 16);
      }

      return value;
    } else {
      return null;
    }
  };

  _proto.hexadecimalIntegerAsNumber = function hexadecimalIntegerAsNumber(attrName) {
    var intValue = parseInt(this[attrName], 16);

    if (intValue > Number.MAX_SAFE_INTEGER) {
      return Infinity;
    }

    return intValue;
  };

  _proto.decimalFloatingPoint = function decimalFloatingPoint(attrName) {
    return parseFloat(this[attrName]);
  };

  _proto.optionalFloat = function optionalFloat(attrName, defaultValue) {
    var value = this[attrName];
    return value ? parseFloat(value) : defaultValue;
  };

  _proto.enumeratedString = function enumeratedString(attrName) {
    return this[attrName];
  };

  _proto.bool = function bool(attrName) {
    return this[attrName] === 'YES';
  };

  _proto.decimalResolution = function decimalResolution(attrName) {
    var res = DECIMAL_RESOLUTION_REGEX.exec(this[attrName]);

    if (res === null) {
      return undefined;
    }

    return {
      width: parseInt(res[1], 10),
      height: parseInt(res[2], 10)
    };
  };

  AttrList.parseAttrList = function parseAttrList(input) {
    var match;
    var attrs = {};
    var quote = '"';
    ATTR_LIST_REGEX.lastIndex = 0;

    while ((match = ATTR_LIST_REGEX.exec(input)) !== null) {
      var value = match[2];

      if (value.indexOf(quote) === 0 && value.lastIndexOf(quote) === value.length - 1) {
        value = value.slice(1, -1);
      }

      attrs[match[1]] = value;
    }

    return attrs;
  };

  return AttrList;
}();

/***/ }),

/***/ "./src/utils/binary-search.ts":
/*!************************************!*\
  !*** ./src/utils/binary-search.ts ***!
  \************************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
var BinarySearch = {
  /**
   * Searches for an item in an array which matches a certain condition.
   * This requires the condition to only match one item in the array,
   * and for the array to be ordered.
   *
   * @param {Array<T>} list The array to search.
   * @param {BinarySearchComparison<T>} comparisonFn
   *      Called and provided a candidate item as the first argument.
   *      Should return:
   *          > -1 if the item should be located at a lower index than the provided item.
   *          > 1 if the item should be located at a higher index than the provided item.
   *          > 0 if the item is the item you're looking for.
   *
   * @return {T | null} The object if it is found or null otherwise.
   */
  search: function search(list, comparisonFn) {
    var minIndex = 0;
    var maxIndex = list.length - 1;
    var currentIndex = null;
    var currentElement = null;

    while (minIndex <= maxIndex) {
      currentIndex = (minIndex + maxIndex) / 2 | 0;
      currentElement = list[currentIndex];
      var comparisonResult = comparisonFn(currentElement);

      if (comparisonResult > 0) {
        minIndex = currentIndex + 1;
      } else if (comparisonResult < 0) {
        maxIndex = currentIndex - 1;
      } else {
        return currentElement;
      }
    }

    return null;
  }
};
/* harmony default export */ __webpack_exports__["default"] = (BinarySearch);

/***/ }),

/***/ "./src/utils/buffer-helper.ts":
/*!************************************!*\
  !*** ./src/utils/buffer-helper.ts ***!
  \************************************/
/*! exports provided: BufferHelper */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "BufferHelper", function() { return BufferHelper; });
/* harmony import */ var _logger__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./logger */ "./src/utils/logger.ts");
/**
 * @module BufferHelper
 *
 * Providing methods dealing with buffer length retrieval for example.
 *
 * In general, a helper around HTML5 MediaElement TimeRanges gathered from `buffered` property.
 *
 * Also @see https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/buffered
 */

var noopBuffered = {
  length: 0,
  start: function start() {
    return 0;
  },
  end: function end() {
    return 0;
  }
};
var BufferHelper = /*#__PURE__*/function () {
  function BufferHelper() {}

  /**
   * Return true if `media`'s buffered include `position`
   * @param {Bufferable} media
   * @param {number} position
   * @returns {boolean}
   */
  BufferHelper.isBuffered = function isBuffered(media, position) {
    try {
      if (media) {
        var buffered = BufferHelper.getBuffered(media);

        for (var i = 0; i < buffered.length; i++) {
          if (position >= buffered.start(i) && position <= buffered.end(i)) {
            return true;
          }
        }
      }
    } catch (error) {// this is to catch
      // InvalidStateError: Failed to read the 'buffered' property from 'SourceBuffer':
      // This SourceBuffer has been removed from the parent media source
    }

    return false;
  };

  BufferHelper.bufferInfo = function bufferInfo(media, pos, maxHoleDuration) {
    try {
      if (media) {
        var vbuffered = BufferHelper.getBuffered(media);
        var buffered = [];
        var i;

        for (i = 0; i < vbuffered.length; i++) {
          buffered.push({
            start: vbuffered.start(i),
            end: vbuffered.end(i)
          });
        }

        return this.bufferedInfo(buffered, pos, maxHoleDuration);
      }
    } catch (error) {// this is to catch
      // InvalidStateError: Failed to read the 'buffered' property from 'SourceBuffer':
      // This SourceBuffer has been removed from the parent media source
    }

    return {
      len: 0,
      start: pos,
      end: pos,
      nextStart: undefined
    };
  };

  BufferHelper.bufferedInfo = function bufferedInfo(buffered, pos, maxHoleDuration) {
    pos = Math.max(0, pos); // sort on buffer.start/smaller end (IE does not always return sorted buffered range)

    buffered.sort(function (a, b) {
      var diff = a.start - b.start;

      if (diff) {
        return diff;
      } else {
        return b.end - a.end;
      }
    });
    var buffered2 = [];

    if (maxHoleDuration) {
      // there might be some small holes between buffer time range
      // consider that holes smaller than maxHoleDuration are irrelevant and build another
      // buffer time range representations that discards those holes
      for (var i = 0; i < buffered.length; i++) {
        var buf2len = buffered2.length;

        if (buf2len) {
          var buf2end = buffered2[buf2len - 1].end; // if small hole (value between 0 or maxHoleDuration ) or overlapping (negative)

          if (buffered[i].start - buf2end < maxHoleDuration) {
            // merge overlapping time ranges
            // update lastRange.end only if smaller than item.end
            // e.g.  [ 1, 15] with  [ 2,8] => [ 1,15] (no need to modify lastRange.end)
            // whereas [ 1, 8] with  [ 2,15] => [ 1,15] ( lastRange should switch from [1,8] to [1,15])
            if (buffered[i].end > buf2end) {
              buffered2[buf2len - 1].end = buffered[i].end;
            }
          } else {
            // big hole
            buffered2.push(buffered[i]);
          }
        } else {
          // first value
          buffered2.push(buffered[i]);
        }
      }
    } else {
      buffered2 = buffered;
    }

    var bufferLen = 0; // bufferStartNext can possibly be undefined based on the conditional logic below

    var bufferStartNext; // bufferStart and bufferEnd are buffer boundaries around current video position

    var bufferStart = pos;
    var bufferEnd = pos;

    for (var _i = 0; _i < buffered2.length; _i++) {
      var start = buffered2[_i].start;
      var end = buffered2[_i].end; // logger.log('buf start/end:' + buffered.start(i) + '/' + buffered.end(i));

      if (pos + maxHoleDuration >= start && pos < end) {
        // play position is inside this buffer TimeRange, retrieve end of buffer position and buffer length
        bufferStart = start;
        bufferEnd = end;
        bufferLen = bufferEnd - pos;
      } else if (pos + maxHoleDuration < start) {
        bufferStartNext = start;
        break;
      }
    }

    return {
      len: bufferLen,
      start: bufferStart || 0,
      end: bufferEnd || 0,
      nextStart: bufferStartNext
    };
  }
  /**
   * Safe method to get buffered property.
   * SourceBuffer.buffered may throw if SourceBuffer is removed from it's MediaSource
   */
  ;

  BufferHelper.getBuffered = function getBuffered(media) {
    try {
      return media.buffered;
    } catch (e) {
      _logger__WEBPACK_IMPORTED_MODULE_0__["logger"].log('failed to get media.buffered', e);
      return noopBuffered;
    }
  };

  return BufferHelper;
}();

/***/ }),

/***/ "./src/utils/cea-608-parser.ts":
/*!*************************************!*\
  !*** ./src/utils/cea-608-parser.ts ***!
  \*************************************/
/*! exports provided: Row, CaptionScreen, default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "Row", function() { return Row; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "CaptionScreen", function() { return CaptionScreen; });
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../utils/logger */ "./src/utils/logger.ts");

/**
 *
 * This code was ported from the dash.js project at:
 *   https://github.com/Dash-Industry-Forum/dash.js/blob/development/externals/cea608-parser.js
 *   https://github.com/Dash-Industry-Forum/dash.js/commit/8269b26a761e0853bb21d78780ed945144ecdd4d#diff-71bc295a2d6b6b7093a1d3290d53a4b2
 *
 * The original copyright appears below:
 *
 * The copyright in this software is being made available under the BSD License,
 * included below. This software may be subject to other third party and contributor
 * rights, including patent rights, and no such rights are granted under this license.
 *
 * Copyright (c) 2015-2016, DASH Industry Forum.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *  1. Redistributions of source code must retain the above copyright notice, this
 *  list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright notice,
 *  this list of conditions and the following disclaimer in the documentation and/or
 *  other materials provided with the distribution.
 *  2. Neither the name of Dash Industry Forum nor the names of its
 *  contributors may be used to endorse or promote products derived from this software
 *  without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY
 *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 *  POSSIBILITY OF SUCH DAMAGE.
 */

/**
 *  Exceptions from regular ASCII. CodePoints are mapped to UTF-16 codes
 */

var specialCea608CharsCodes = {
  0x2a: 0xe1,
  // lowercase a, acute accent
  0x5c: 0xe9,
  // lowercase e, acute accent
  0x5e: 0xed,
  // lowercase i, acute accent
  0x5f: 0xf3,
  // lowercase o, acute accent
  0x60: 0xfa,
  // lowercase u, acute accent
  0x7b: 0xe7,
  // lowercase c with cedilla
  0x7c: 0xf7,
  // division symbol
  0x7d: 0xd1,
  // uppercase N tilde
  0x7e: 0xf1,
  // lowercase n tilde
  0x7f: 0x2588,
  // Full block
  // THIS BLOCK INCLUDES THE 16 EXTENDED (TWO-BYTE) LINE 21 CHARACTERS
  // THAT COME FROM HI BYTE=0x11 AND LOW BETWEEN 0x30 AND 0x3F
  // THIS MEANS THAT \x50 MUST BE ADDED TO THE VALUES
  0x80: 0xae,
  // Registered symbol (R)
  0x81: 0xb0,
  // degree sign
  0x82: 0xbd,
  // 1/2 symbol
  0x83: 0xbf,
  // Inverted (open) question mark
  0x84: 0x2122,
  // Trademark symbol (TM)
  0x85: 0xa2,
  // Cents symbol
  0x86: 0xa3,
  // Pounds sterling
  0x87: 0x266a,
  // Music 8'th note
  0x88: 0xe0,
  // lowercase a, grave accent
  0x89: 0x20,
  // transparent space (regular)
  0x8a: 0xe8,
  // lowercase e, grave accent
  0x8b: 0xe2,
  // lowercase a, circumflex accent
  0x8c: 0xea,
  // lowercase e, circumflex accent
  0x8d: 0xee,
  // lowercase i, circumflex accent
  0x8e: 0xf4,
  // lowercase o, circumflex accent
  0x8f: 0xfb,
  // lowercase u, circumflex accent
  // THIS BLOCK INCLUDES THE 32 EXTENDED (TWO-BYTE) LINE 21 CHARACTERS
  // THAT COME FROM HI BYTE=0x12 AND LOW BETWEEN 0x20 AND 0x3F
  0x90: 0xc1,
  // capital letter A with acute
  0x91: 0xc9,
  // capital letter E with acute
  0x92: 0xd3,
  // capital letter O with acute
  0x93: 0xda,
  // capital letter U with acute
  0x94: 0xdc,
  // capital letter U with diaresis
  0x95: 0xfc,
  // lowercase letter U with diaeresis
  0x96: 0x2018,
  // opening single quote
  0x97: 0xa1,
  // inverted exclamation mark
  0x98: 0x2a,
  // asterisk
  0x99: 0x2019,
  // closing single quote
  0x9a: 0x2501,
  // box drawings heavy horizontal
  0x9b: 0xa9,
  // copyright sign
  0x9c: 0x2120,
  // Service mark
  0x9d: 0x2022,
  // (round) bullet
  0x9e: 0x201c,
  // Left double quotation mark
  0x9f: 0x201d,
  // Right double quotation mark
  0xa0: 0xc0,
  // uppercase A, grave accent
  0xa1: 0xc2,
  // uppercase A, circumflex
  0xa2: 0xc7,
  // uppercase C with cedilla
  0xa3: 0xc8,
  // uppercase E, grave accent
  0xa4: 0xca,
  // uppercase E, circumflex
  0xa5: 0xcb,
  // capital letter E with diaresis
  0xa6: 0xeb,
  // lowercase letter e with diaresis
  0xa7: 0xce,
  // uppercase I, circumflex
  0xa8: 0xcf,
  // uppercase I, with diaresis
  0xa9: 0xef,
  // lowercase i, with diaresis
  0xaa: 0xd4,
  // uppercase O, circumflex
  0xab: 0xd9,
  // uppercase U, grave accent
  0xac: 0xf9,
  // lowercase u, grave accent
  0xad: 0xdb,
  // uppercase U, circumflex
  0xae: 0xab,
  // left-pointing double angle quotation mark
  0xaf: 0xbb,
  // right-pointing double angle quotation mark
  // THIS BLOCK INCLUDES THE 32 EXTENDED (TWO-BYTE) LINE 21 CHARACTERS
  // THAT COME FROM HI BYTE=0x13 AND LOW BETWEEN 0x20 AND 0x3F
  0xb0: 0xc3,
  // Uppercase A, tilde
  0xb1: 0xe3,
  // Lowercase a, tilde
  0xb2: 0xcd,
  // Uppercase I, acute accent
  0xb3: 0xcc,
  // Uppercase I, grave accent
  0xb4: 0xec,
  // Lowercase i, grave accent
  0xb5: 0xd2,
  // Uppercase O, grave accent
  0xb6: 0xf2,
  // Lowercase o, grave accent
  0xb7: 0xd5,
  // Uppercase O, tilde
  0xb8: 0xf5,
  // Lowercase o, tilde
  0xb9: 0x7b,
  // Open curly brace
  0xba: 0x7d,
  // Closing curly brace
  0xbb: 0x5c,
  // Backslash
  0xbc: 0x5e,
  // Caret
  0xbd: 0x5f,
  // Underscore
  0xbe: 0x7c,
  // Pipe (vertical line)
  0xbf: 0x223c,
  // Tilde operator
  0xc0: 0xc4,
  // Uppercase A, umlaut
  0xc1: 0xe4,
  // Lowercase A, umlaut
  0xc2: 0xd6,
  // Uppercase O, umlaut
  0xc3: 0xf6,
  // Lowercase o, umlaut
  0xc4: 0xdf,
  // Esszett (sharp S)
  0xc5: 0xa5,
  // Yen symbol
  0xc6: 0xa4,
  // Generic currency sign
  0xc7: 0x2503,
  // Box drawings heavy vertical
  0xc8: 0xc5,
  // Uppercase A, ring
  0xc9: 0xe5,
  // Lowercase A, ring
  0xca: 0xd8,
  // Uppercase O, stroke
  0xcb: 0xf8,
  // Lowercase o, strok
  0xcc: 0x250f,
  // Box drawings heavy down and right
  0xcd: 0x2513,
  // Box drawings heavy down and left
  0xce: 0x2517,
  // Box drawings heavy up and right
  0xcf: 0x251b // Box drawings heavy up and left

};
/**
 * Utils
 */

var getCharForByte = function getCharForByte(_byte) {
  var charCode = _byte;

  if (specialCea608CharsCodes.hasOwnProperty(_byte)) {
    charCode = specialCea608CharsCodes[_byte];
  }

  return String.fromCharCode(charCode);
};

var NR_ROWS = 15;
var NR_COLS = 100; // Tables to look up row from PAC data

var rowsLowCh1 = {
  0x11: 1,
  0x12: 3,
  0x15: 5,
  0x16: 7,
  0x17: 9,
  0x10: 11,
  0x13: 12,
  0x14: 14
};
var rowsHighCh1 = {
  0x11: 2,
  0x12: 4,
  0x15: 6,
  0x16: 8,
  0x17: 10,
  0x13: 13,
  0x14: 15
};
var rowsLowCh2 = {
  0x19: 1,
  0x1a: 3,
  0x1d: 5,
  0x1e: 7,
  0x1f: 9,
  0x18: 11,
  0x1b: 12,
  0x1c: 14
};
var rowsHighCh2 = {
  0x19: 2,
  0x1a: 4,
  0x1d: 6,
  0x1e: 8,
  0x1f: 10,
  0x1b: 13,
  0x1c: 15
};
var backgroundColors = ['white', 'green', 'blue', 'cyan', 'red', 'yellow', 'magenta', 'black', 'transparent'];
var VerboseLevel;

(function (VerboseLevel) {
  VerboseLevel[VerboseLevel["ERROR"] = 0] = "ERROR";
  VerboseLevel[VerboseLevel["TEXT"] = 1] = "TEXT";
  VerboseLevel[VerboseLevel["WARNING"] = 2] = "WARNING";
  VerboseLevel[VerboseLevel["INFO"] = 2] = "INFO";
  VerboseLevel[VerboseLevel["DEBUG"] = 3] = "DEBUG";
  VerboseLevel[VerboseLevel["DATA"] = 3] = "DATA";
})(VerboseLevel || (VerboseLevel = {}));

var CaptionsLogger = /*#__PURE__*/function () {
  function CaptionsLogger() {
    this.time = null;
    this.verboseLevel = VerboseLevel.ERROR;
  }

  var _proto = CaptionsLogger.prototype;

  _proto.log = function log(severity, msg) {
    if (this.verboseLevel >= severity) {
      _utils_logger__WEBPACK_IMPORTED_MODULE_0__["logger"].log(this.time + " [" + severity + "] " + msg);
    }
  };

  return CaptionsLogger;
}();

var numArrayToHexArray = function numArrayToHexArray(numArray) {
  var hexArray = [];

  for (var j = 0; j < numArray.length; j++) {
    hexArray.push(numArray[j].toString(16));
  }

  return hexArray;
};

var PenState = /*#__PURE__*/function () {
  function PenState(foreground, underline, italics, background, flash) {
    this.foreground = void 0;
    this.underline = void 0;
    this.italics = void 0;
    this.background = void 0;
    this.flash = void 0;
    this.foreground = foreground || 'white';
    this.underline = underline || false;
    this.italics = italics || false;
    this.background = background || 'black';
    this.flash = flash || false;
  }

  var _proto2 = PenState.prototype;

  _proto2.reset = function reset() {
    this.foreground = 'white';
    this.underline = false;
    this.italics = false;
    this.background = 'black';
    this.flash = false;
  };

  _proto2.setStyles = function setStyles(styles) {
    var attribs = ['foreground', 'underline', 'italics', 'background', 'flash'];

    for (var i = 0; i < attribs.length; i++) {
      var style = attribs[i];

      if (styles.hasOwnProperty(style)) {
        this[style] = styles[style];
      }
    }
  };

  _proto2.isDefault = function isDefault() {
    return this.foreground === 'white' && !this.underline && !this.italics && this.background === 'black' && !this.flash;
  };

  _proto2.equals = function equals(other) {
    return this.foreground === other.foreground && this.underline === other.underline && this.italics === other.italics && this.background === other.background && this.flash === other.flash;
  };

  _proto2.copy = function copy(newPenState) {
    this.foreground = newPenState.foreground;
    this.underline = newPenState.underline;
    this.italics = newPenState.italics;
    this.background = newPenState.background;
    this.flash = newPenState.flash;
  };

  _proto2.toString = function toString() {
    return 'color=' + this.foreground + ', underline=' + this.underline + ', italics=' + this.italics + ', background=' + this.background + ', flash=' + this.flash;
  };

  return PenState;
}();
/**
 * Unicode character with styling and background.
 * @constructor
 */


var StyledUnicodeChar = /*#__PURE__*/function () {
  function StyledUnicodeChar(uchar, foreground, underline, italics, background, flash) {
    this.uchar = void 0;
    this.penState = void 0;
    this.uchar = uchar || ' '; // unicode character

    this.penState = new PenState(foreground, underline, italics, background, flash);
  }

  var _proto3 = StyledUnicodeChar.prototype;

  _proto3.reset = function reset() {
    this.uchar = ' ';
    this.penState.reset();
  };

  _proto3.setChar = function setChar(uchar, newPenState) {
    this.uchar = uchar;
    this.penState.copy(newPenState);
  };

  _proto3.setPenState = function setPenState(newPenState) {
    this.penState.copy(newPenState);
  };

  _proto3.equals = function equals(other) {
    return this.uchar === other.uchar && this.penState.equals(other.penState);
  };

  _proto3.copy = function copy(newChar) {
    this.uchar = newChar.uchar;
    this.penState.copy(newChar.penState);
  };

  _proto3.isEmpty = function isEmpty() {
    return this.uchar === ' ' && this.penState.isDefault();
  };

  return StyledUnicodeChar;
}();
/**
 * CEA-608 row consisting of NR_COLS instances of StyledUnicodeChar.
 * @constructor
 */


var Row = /*#__PURE__*/function () {
  function Row(logger) {
    this.chars = void 0;
    this.pos = void 0;
    this.currPenState = void 0;
    this.cueStartTime = void 0;
    this.logger = void 0;
    this.chars = [];

    for (var i = 0; i < NR_COLS; i++) {
      this.chars.push(new StyledUnicodeChar());
    }

    this.logger = logger;
    this.pos = 0;
    this.currPenState = new PenState();
  }

  var _proto4 = Row.prototype;

  _proto4.equals = function equals(other) {
    var equal = true;

    for (var i = 0; i < NR_COLS; i++) {
      if (!this.chars[i].equals(other.chars[i])) {
        equal = false;
        break;
      }
    }

    return equal;
  };

  _proto4.copy = function copy(other) {
    for (var i = 0; i < NR_COLS; i++) {
      this.chars[i].copy(other.chars[i]);
    }
  };

  _proto4.isEmpty = function isEmpty() {
    var empty = true;

    for (var i = 0; i < NR_COLS; i++) {
      if (!this.chars[i].isEmpty()) {
        empty = false;
        break;
      }
    }

    return empty;
  }
  /**
   *  Set the cursor to a valid column.
   */
  ;

  _proto4.setCursor = function setCursor(absPos) {
    if (this.pos !== absPos) {
      this.pos = absPos;
    }

    if (this.pos < 0) {
      this.logger.log(VerboseLevel.DEBUG, 'Negative cursor position ' + this.pos);
      this.pos = 0;
    } else if (this.pos > NR_COLS) {
      this.logger.log(VerboseLevel.DEBUG, 'Too large cursor position ' + this.pos);
      this.pos = NR_COLS;
    }
  }
  /**
   * Move the cursor relative to current position.
   */
  ;

  _proto4.moveCursor = function moveCursor(relPos) {
    var newPos = this.pos + relPos;

    if (relPos > 1) {
      for (var i = this.pos + 1; i < newPos + 1; i++) {
        this.chars[i].setPenState(this.currPenState);
      }
    }

    this.setCursor(newPos);
  }
  /**
   * Backspace, move one step back and clear character.
   */
  ;

  _proto4.backSpace = function backSpace() {
    this.moveCursor(-1);
    this.chars[this.pos].setChar(' ', this.currPenState);
  };

  _proto4.insertChar = function insertChar(_byte2) {
    if (_byte2 >= 0x90) {
      // Extended char
      this.backSpace();
    }

    var _char = getCharForByte(_byte2);

    if (this.pos >= NR_COLS) {
      this.logger.log(VerboseLevel.ERROR, 'Cannot insert ' + _byte2.toString(16) + ' (' + _char + ') at position ' + this.pos + '. Skipping it!');
      return;
    }

    this.chars[this.pos].setChar(_char, this.currPenState);
    this.moveCursor(1);
  };

  _proto4.clearFromPos = function clearFromPos(startPos) {
    var i;

    for (i = startPos; i < NR_COLS; i++) {
      this.chars[i].reset();
    }
  };

  _proto4.clear = function clear() {
    this.clearFromPos(0);
    this.pos = 0;
    this.currPenState.reset();
  };

  _proto4.clearToEndOfRow = function clearToEndOfRow() {
    this.clearFromPos(this.pos);
  };

  _proto4.getTextString = function getTextString() {
    var chars = [];
    var empty = true;

    for (var i = 0; i < NR_COLS; i++) {
      var _char2 = this.chars[i].uchar;

      if (_char2 !== ' ') {
        empty = false;
      }

      chars.push(_char2);
    }

    if (empty) {
      return '';
    } else {
      return chars.join('');
    }
  };

  _proto4.setPenStyles = function setPenStyles(styles) {
    this.currPenState.setStyles(styles);
    var currChar = this.chars[this.pos];
    currChar.setPenState(this.currPenState);
  };

  return Row;
}();
/**
 * Keep a CEA-608 screen of 32x15 styled characters
 * @constructor
 */

var CaptionScreen = /*#__PURE__*/function () {
  function CaptionScreen(logger) {
    this.rows = void 0;
    this.currRow = void 0;
    this.nrRollUpRows = void 0;
    this.lastOutputScreen = void 0;
    this.logger = void 0;
    this.rows = [];

    for (var i = 0; i < NR_ROWS; i++) {
      this.rows.push(new Row(logger));
    } // Note that we use zero-based numbering (0-14)


    this.logger = logger;
    this.currRow = NR_ROWS - 1;
    this.nrRollUpRows = null;
    this.lastOutputScreen = null;
    this.reset();
  }

  var _proto5 = CaptionScreen.prototype;

  _proto5.reset = function reset() {
    for (var i = 0; i < NR_ROWS; i++) {
      this.rows[i].clear();
    }

    this.currRow = NR_ROWS - 1;
  };

  _proto5.equals = function equals(other) {
    var equal = true;

    for (var i = 0; i < NR_ROWS; i++) {
      if (!this.rows[i].equals(other.rows[i])) {
        equal = false;
        break;
      }
    }

    return equal;
  };

  _proto5.copy = function copy(other) {
    for (var i = 0; i < NR_ROWS; i++) {
      this.rows[i].copy(other.rows[i]);
    }
  };

  _proto5.isEmpty = function isEmpty() {
    var empty = true;

    for (var i = 0; i < NR_ROWS; i++) {
      if (!this.rows[i].isEmpty()) {
        empty = false;
        break;
      }
    }

    return empty;
  };

  _proto5.backSpace = function backSpace() {
    var row = this.rows[this.currRow];
    row.backSpace();
  };

  _proto5.clearToEndOfRow = function clearToEndOfRow() {
    var row = this.rows[this.currRow];
    row.clearToEndOfRow();
  }
  /**
   * Insert a character (without styling) in the current row.
   */
  ;

  _proto5.insertChar = function insertChar(_char3) {
    var row = this.rows[this.currRow];
    row.insertChar(_char3);
  };

  _proto5.setPen = function setPen(styles) {
    var row = this.rows[this.currRow];
    row.setPenStyles(styles);
  };

  _proto5.moveCursor = function moveCursor(relPos) {
    var row = this.rows[this.currRow];
    row.moveCursor(relPos);
  };

  _proto5.setCursor = function setCursor(absPos) {
    this.logger.log(VerboseLevel.INFO, 'setCursor: ' + absPos);
    var row = this.rows[this.currRow];
    row.setCursor(absPos);
  };

  _proto5.setPAC = function setPAC(pacData) {
    this.logger.log(VerboseLevel.INFO, 'pacData = ' + JSON.stringify(pacData));
    var newRow = pacData.row - 1;

    if (this.nrRollUpRows && newRow < this.nrRollUpRows - 1) {
      newRow = this.nrRollUpRows - 1;
    } // Make sure this only affects Roll-up Captions by checking this.nrRollUpRows


    if (this.nrRollUpRows && this.currRow !== newRow) {
      // clear all rows first
      for (var i = 0; i < NR_ROWS; i++) {
        this.rows[i].clear();
      } // Copy this.nrRollUpRows rows from lastOutputScreen and place it in the newRow location
      // topRowIndex - the start of rows to copy (inclusive index)


      var topRowIndex = this.currRow + 1 - this.nrRollUpRows; // We only copy if the last position was already shown.
      // We use the cueStartTime value to check this.

      var lastOutputScreen = this.lastOutputScreen;

      if (lastOutputScreen) {
        var prevLineTime = lastOutputScreen.rows[topRowIndex].cueStartTime;
        var time = this.logger.time;

        if (prevLineTime && time !== null && prevLineTime < time) {
          for (var _i = 0; _i < this.nrRollUpRows; _i++) {
            this.rows[newRow - this.nrRollUpRows + _i + 1].copy(lastOutputScreen.rows[topRowIndex + _i]);
          }
        }
      }
    }

    this.currRow = newRow;
    var row = this.rows[this.currRow];

    if (pacData.indent !== null) {
      var indent = pacData.indent;
      var prevPos = Math.max(indent - 1, 0);
      row.setCursor(pacData.indent);
      pacData.color = row.chars[prevPos].penState.foreground;
    }

    var styles = {
      foreground: pacData.color,
      underline: pacData.underline,
      italics: pacData.italics,
      background: 'black',
      flash: false
    };
    this.setPen(styles);
  }
  /**
   * Set background/extra foreground, but first do back_space, and then insert space (backwards compatibility).
   */
  ;

  _proto5.setBkgData = function setBkgData(bkgData) {
    this.logger.log(VerboseLevel.INFO, 'bkgData = ' + JSON.stringify(bkgData));
    this.backSpace();
    this.setPen(bkgData);
    this.insertChar(0x20); // Space
  };

  _proto5.setRollUpRows = function setRollUpRows(nrRows) {
    this.nrRollUpRows = nrRows;
  };

  _proto5.rollUp = function rollUp() {
    if (this.nrRollUpRows === null) {
      this.logger.log(VerboseLevel.DEBUG, 'roll_up but nrRollUpRows not set yet');
      return; // Not properly setup
    }

    this.logger.log(VerboseLevel.TEXT, this.getDisplayText());
    var topRowIndex = this.currRow + 1 - this.nrRollUpRows;
    var topRow = this.rows.splice(topRowIndex, 1)[0];
    topRow.clear();
    this.rows.splice(this.currRow, 0, topRow);
    this.logger.log(VerboseLevel.INFO, 'Rolling up'); // this.logger.log(VerboseLevel.TEXT, this.get_display_text())
  }
  /**
   * Get all non-empty rows with as unicode text.
   */
  ;

  _proto5.getDisplayText = function getDisplayText(asOneRow) {
    asOneRow = asOneRow || false;
    var displayText = [];
    var text = '';
    var rowNr = -1;

    for (var i = 0; i < NR_ROWS; i++) {
      var rowText = this.rows[i].getTextString();

      if (rowText) {
        rowNr = i + 1;

        if (asOneRow) {
          displayText.push('Row ' + rowNr + ": '" + rowText + "'");
        } else {
          displayText.push(rowText.trim());
        }
      }
    }

    if (displayText.length > 0) {
      if (asOneRow) {
        text = '[' + displayText.join(' | ') + ']';
      } else {
        text = displayText.join('\n');
      }
    }

    return text;
  };

  _proto5.getTextAndFormat = function getTextAndFormat() {
    return this.rows;
  };

  return CaptionScreen;
}(); // var modes = ['MODE_ROLL-UP', 'MODE_POP-ON', 'MODE_PAINT-ON', 'MODE_TEXT'];

var Cea608Channel = /*#__PURE__*/function () {
  function Cea608Channel(channelNumber, outputFilter, logger) {
    this.chNr = void 0;
    this.outputFilter = void 0;
    this.mode = void 0;
    this.verbose = void 0;
    this.displayedMemory = void 0;
    this.nonDisplayedMemory = void 0;
    this.lastOutputScreen = void 0;
    this.currRollUpRow = void 0;
    this.writeScreen = void 0;
    this.cueStartTime = void 0;
    this.logger = void 0;
    this.chNr = channelNumber;
    this.outputFilter = outputFilter;
    this.mode = null;
    this.verbose = 0;
    this.displayedMemory = new CaptionScreen(logger);
    this.nonDisplayedMemory = new CaptionScreen(logger);
    this.lastOutputScreen = new CaptionScreen(logger);
    this.currRollUpRow = this.displayedMemory.rows[NR_ROWS - 1];
    this.writeScreen = this.displayedMemory;
    this.mode = null;
    this.cueStartTime = null; // Keeps track of where a cue started.

    this.logger = logger;
  }

  var _proto6 = Cea608Channel.prototype;

  _proto6.reset = function reset() {
    this.mode = null;
    this.displayedMemory.reset();
    this.nonDisplayedMemory.reset();
    this.lastOutputScreen.reset();
    this.outputFilter.reset();
    this.currRollUpRow = this.displayedMemory.rows[NR_ROWS - 1];
    this.writeScreen = this.displayedMemory;
    this.mode = null;
    this.cueStartTime = null;
  };

  _proto6.getHandler = function getHandler() {
    return this.outputFilter;
  };

  _proto6.setHandler = function setHandler(newHandler) {
    this.outputFilter = newHandler;
  };

  _proto6.setPAC = function setPAC(pacData) {
    this.writeScreen.setPAC(pacData);
  };

  _proto6.setBkgData = function setBkgData(bkgData) {
    this.writeScreen.setBkgData(bkgData);
  };

  _proto6.setMode = function setMode(newMode) {
    if (newMode === this.mode) {
      return;
    }

    this.mode = newMode;
    this.logger.log(VerboseLevel.INFO, 'MODE=' + newMode);

    if (this.mode === 'MODE_POP-ON') {
      this.writeScreen = this.nonDisplayedMemory;
    } else {
      this.writeScreen = this.displayedMemory;
      this.writeScreen.reset();
    }

    if (this.mode !== 'MODE_ROLL-UP') {
      this.displayedMemory.nrRollUpRows = null;
      this.nonDisplayedMemory.nrRollUpRows = null;
    }

    this.mode = newMode;
  };

  _proto6.insertChars = function insertChars(chars) {
    for (var i = 0; i < chars.length; i++) {
      this.writeScreen.insertChar(chars[i]);
    }

    var screen = this.writeScreen === this.displayedMemory ? 'DISP' : 'NON_DISP';
    this.logger.log(VerboseLevel.INFO, screen + ': ' + this.writeScreen.getDisplayText(true));

    if (this.mode === 'MODE_PAINT-ON' || this.mode === 'MODE_ROLL-UP') {
      this.logger.log(VerboseLevel.TEXT, 'DISPLAYED: ' + this.displayedMemory.getDisplayText(true));
      this.outputDataUpdate();
    }
  };

  _proto6.ccRCL = function ccRCL() {
    // Resume Caption Loading (switch mode to Pop On)
    this.logger.log(VerboseLevel.INFO, 'RCL - Resume Caption Loading');
    this.setMode('MODE_POP-ON');
  };

  _proto6.ccBS = function ccBS() {
    // BackSpace
    this.logger.log(VerboseLevel.INFO, 'BS - BackSpace');

    if (this.mode === 'MODE_TEXT') {
      return;
    }

    this.writeScreen.backSpace();

    if (this.writeScreen === this.displayedMemory) {
      this.outputDataUpdate();
    }
  };

  _proto6.ccAOF = function ccAOF() {// Reserved (formerly Alarm Off)
  };

  _proto6.ccAON = function ccAON() {// Reserved (formerly Alarm On)
  };

  _proto6.ccDER = function ccDER() {
    // Delete to End of Row
    this.logger.log(VerboseLevel.INFO, 'DER- Delete to End of Row');
    this.writeScreen.clearToEndOfRow();
    this.outputDataUpdate();
  };

  _proto6.ccRU = function ccRU(nrRows) {
    // Roll-Up Captions-2,3,or 4 Rows
    this.logger.log(VerboseLevel.INFO, 'RU(' + nrRows + ') - Roll Up');
    this.writeScreen = this.displayedMemory;
    this.setMode('MODE_ROLL-UP');
    this.writeScreen.setRollUpRows(nrRows);
  };

  _proto6.ccFON = function ccFON() {
    // Flash On
    this.logger.log(VerboseLevel.INFO, 'FON - Flash On');
    this.writeScreen.setPen({
      flash: true
    });
  };

  _proto6.ccRDC = function ccRDC() {
    // Resume Direct Captioning (switch mode to PaintOn)
    this.logger.log(VerboseLevel.INFO, 'RDC - Resume Direct Captioning');
    this.setMode('MODE_PAINT-ON');
  };

  _proto6.ccTR = function ccTR() {
    // Text Restart in text mode (not supported, however)
    this.logger.log(VerboseLevel.INFO, 'TR');
    this.setMode('MODE_TEXT');
  };

  _proto6.ccRTD = function ccRTD() {
    // Resume Text Display in Text mode (not supported, however)
    this.logger.log(VerboseLevel.INFO, 'RTD');
    this.setMode('MODE_TEXT');
  };

  _proto6.ccEDM = function ccEDM() {
    // Erase Displayed Memory
    this.logger.log(VerboseLevel.INFO, 'EDM - Erase Displayed Memory');
    this.displayedMemory.reset();
    this.outputDataUpdate(true);
  };

  _proto6.ccCR = function ccCR() {
    // Carriage Return
    this.logger.log(VerboseLevel.INFO, 'CR - Carriage Return');
    this.writeScreen.rollUp();
    this.outputDataUpdate(true);
  };

  _proto6.ccENM = function ccENM() {
    // Erase Non-Displayed Memory
    this.logger.log(VerboseLevel.INFO, 'ENM - Erase Non-displayed Memory');
    this.nonDisplayedMemory.reset();
  };

  _proto6.ccEOC = function ccEOC() {
    // End of Caption (Flip Memories)
    this.logger.log(VerboseLevel.INFO, 'EOC - End Of Caption');

    if (this.mode === 'MODE_POP-ON') {
      var tmp = this.displayedMemory;
      this.displayedMemory = this.nonDisplayedMemory;
      this.nonDisplayedMemory = tmp;
      this.writeScreen = this.nonDisplayedMemory;
      this.logger.log(VerboseLevel.TEXT, 'DISP: ' + this.displayedMemory.getDisplayText());
    }

    this.outputDataUpdate(true);
  };

  _proto6.ccTO = function ccTO(nrCols) {
    // Tab Offset 1,2, or 3 columns
    this.logger.log(VerboseLevel.INFO, 'TO(' + nrCols + ') - Tab Offset');
    this.writeScreen.moveCursor(nrCols);
  };

  _proto6.ccMIDROW = function ccMIDROW(secondByte) {
    // Parse MIDROW command
    var styles = {
      flash: false
    };
    styles.underline = secondByte % 2 === 1;
    styles.italics = secondByte >= 0x2e;

    if (!styles.italics) {
      var colorIndex = Math.floor(secondByte / 2) - 0x10;
      var colors = ['white', 'green', 'blue', 'cyan', 'red', 'yellow', 'magenta'];
      styles.foreground = colors[colorIndex];
    } else {
      styles.foreground = 'white';
    }

    this.logger.log(VerboseLevel.INFO, 'MIDROW: ' + JSON.stringify(styles));
    this.writeScreen.setPen(styles);
  };

  _proto6.outputDataUpdate = function outputDataUpdate(dispatch) {
    if (dispatch === void 0) {
      dispatch = false;
    }

    var time = this.logger.time;

    if (time === null) {
      return;
    }

    if (this.outputFilter) {
      if (this.cueStartTime === null && !this.displayedMemory.isEmpty()) {
        // Start of a new cue
        this.cueStartTime = time;
      } else {
        if (!this.displayedMemory.equals(this.lastOutputScreen)) {
          this.outputFilter.newCue(this.cueStartTime, time, this.lastOutputScreen);

          if (dispatch && this.outputFilter.dispatchCue) {
            this.outputFilter.dispatchCue();
          }

          this.cueStartTime = this.displayedMemory.isEmpty() ? null : time;
        }
      }

      this.lastOutputScreen.copy(this.displayedMemory);
    }
  };

  _proto6.cueSplitAtTime = function cueSplitAtTime(t) {
    if (this.outputFilter) {
      if (!this.displayedMemory.isEmpty()) {
        if (this.outputFilter.newCue) {
          this.outputFilter.newCue(this.cueStartTime, t, this.displayedMemory);
        }

        this.cueStartTime = t;
      }
    }
  };

  return Cea608Channel;
}();

var Cea608Parser = /*#__PURE__*/function () {
  function Cea608Parser(field, out1, out2) {
    this.channels = void 0;
    this.currentChannel = 0;
    this.cmdHistory = void 0;
    this.logger = void 0;
    var logger = new CaptionsLogger();
    this.channels = [null, new Cea608Channel(field, out1, logger), new Cea608Channel(field + 1, out2, logger)];
    this.cmdHistory = createCmdHistory();
    this.logger = logger;
  }

  var _proto7 = Cea608Parser.prototype;

  _proto7.getHandler = function getHandler(channel) {
    return this.channels[channel].getHandler();
  };

  _proto7.setHandler = function setHandler(channel, newHandler) {
    this.channels[channel].setHandler(newHandler);
  }
  /**
   * Add data for time t in forms of list of bytes (unsigned ints). The bytes are treated as pairs.
   */
  ;

  _proto7.addData = function addData(time, byteList) {
    var cmdFound;
    var a;
    var b;
    var charsFound = false;
    this.logger.time = time;

    for (var i = 0; i < byteList.length; i += 2) {
      a = byteList[i] & 0x7f;
      b = byteList[i + 1] & 0x7f;

      if (a === 0 && b === 0) {
        continue;
      } else {
        this.logger.log(VerboseLevel.DATA, '[' + numArrayToHexArray([byteList[i], byteList[i + 1]]) + '] -> (' + numArrayToHexArray([a, b]) + ')');
      }

      cmdFound = this.parseCmd(a, b);

      if (!cmdFound) {
        cmdFound = this.parseMidrow(a, b);
      }

      if (!cmdFound) {
        cmdFound = this.parsePAC(a, b);
      }

      if (!cmdFound) {
        cmdFound = this.parseBackgroundAttributes(a, b);
      }

      if (!cmdFound) {
        charsFound = this.parseChars(a, b);

        if (charsFound) {
          var currChNr = this.currentChannel;

          if (currChNr && currChNr > 0) {
            var channel = this.channels[currChNr];
            channel.insertChars(charsFound);
          } else {
            this.logger.log(VerboseLevel.WARNING, 'No channel found yet. TEXT-MODE?');
          }
        }
      }

      if (!cmdFound && !charsFound) {
        this.logger.log(VerboseLevel.WARNING, "Couldn't parse cleaned data " + numArrayToHexArray([a, b]) + ' orig: ' + numArrayToHexArray([byteList[i], byteList[i + 1]]));
      }
    }
  }
  /**
   * Parse Command.
   * @returns {Boolean} Tells if a command was found
   */
  ;

  _proto7.parseCmd = function parseCmd(a, b) {
    var cmdHistory = this.cmdHistory;
    var cond1 = (a === 0x14 || a === 0x1c || a === 0x15 || a === 0x1d) && b >= 0x20 && b <= 0x2f;
    var cond2 = (a === 0x17 || a === 0x1f) && b >= 0x21 && b <= 0x23;

    if (!(cond1 || cond2)) {
      return false;
    }

    if (hasCmdRepeated(a, b, cmdHistory)) {
      setLastCmd(null, null, cmdHistory);
      this.logger.log(VerboseLevel.DEBUG, 'Repeated command (' + numArrayToHexArray([a, b]) + ') is dropped');
      return true;
    }

    var chNr = a === 0x14 || a === 0x15 || a === 0x17 ? 1 : 2;
    var channel = this.channels[chNr];

    if (a === 0x14 || a === 0x15 || a === 0x1c || a === 0x1d) {
      if (b === 0x20) {
        channel.ccRCL();
      } else if (b === 0x21) {
        channel.ccBS();
      } else if (b === 0x22) {
        channel.ccAOF();
      } else if (b === 0x23) {
        channel.ccAON();
      } else if (b === 0x24) {
        channel.ccDER();
      } else if (b === 0x25) {
        channel.ccRU(2);
      } else if (b === 0x26) {
        channel.ccRU(3);
      } else if (b === 0x27) {
        channel.ccRU(4);
      } else if (b === 0x28) {
        channel.ccFON();
      } else if (b === 0x29) {
        channel.ccRDC();
      } else if (b === 0x2a) {
        channel.ccTR();
      } else if (b === 0x2b) {
        channel.ccRTD();
      } else if (b === 0x2c) {
        channel.ccEDM();
      } else if (b === 0x2d) {
        channel.ccCR();
      } else if (b === 0x2e) {
        channel.ccENM();
      } else if (b === 0x2f) {
        channel.ccEOC();
      }
    } else {
      // a == 0x17 || a == 0x1F
      channel.ccTO(b - 0x20);
    }

    setLastCmd(a, b, cmdHistory);
    this.currentChannel = chNr;
    return true;
  }
  /**
   * Parse midrow styling command
   * @returns {Boolean}
   */
  ;

  _proto7.parseMidrow = function parseMidrow(a, b) {
    var chNr = 0;

    if ((a === 0x11 || a === 0x19) && b >= 0x20 && b <= 0x2f) {
      if (a === 0x11) {
        chNr = 1;
      } else {
        chNr = 2;
      }

      if (chNr !== this.currentChannel) {
        this.logger.log(VerboseLevel.ERROR, 'Mismatch channel in midrow parsing');
        return false;
      }

      var channel = this.channels[chNr];

      if (!channel) {
        return false;
      }

      channel.ccMIDROW(b);
      this.logger.log(VerboseLevel.DEBUG, 'MIDROW (' + numArrayToHexArray([a, b]) + ')');
      return true;
    }

    return false;
  }
  /**
   * Parse Preable Access Codes (Table 53).
   * @returns {Boolean} Tells if PAC found
   */
  ;

  _proto7.parsePAC = function parsePAC(a, b) {
    var row;
    var cmdHistory = this.cmdHistory;
    var case1 = (a >= 0x11 && a <= 0x17 || a >= 0x19 && a <= 0x1f) && b >= 0x40 && b <= 0x7f;
    var case2 = (a === 0x10 || a === 0x18) && b >= 0x40 && b <= 0x5f;

    if (!(case1 || case2)) {
      return false;
    }

    if (hasCmdRepeated(a, b, cmdHistory)) {
      setLastCmd(null, null, cmdHistory);
      return true; // Repeated commands are dropped (once)
    }

    var chNr = a <= 0x17 ? 1 : 2;

    if (b >= 0x40 && b <= 0x5f) {
      row = chNr === 1 ? rowsLowCh1[a] : rowsLowCh2[a];
    } else {
      // 0x60 <= b <= 0x7F
      row = chNr === 1 ? rowsHighCh1[a] : rowsHighCh2[a];
    }

    var channel = this.channels[chNr];

    if (!channel) {
      return false;
    }

    channel.setPAC(this.interpretPAC(row, b));
    setLastCmd(a, b, cmdHistory);
    this.currentChannel = chNr;
    return true;
  }
  /**
   * Interpret the second byte of the pac, and return the information.
   * @returns {Object} pacData with style parameters.
   */
  ;

  _proto7.interpretPAC = function interpretPAC(row, _byte3) {
    var pacIndex;
    var pacData = {
      color: null,
      italics: false,
      indent: null,
      underline: false,
      row: row
    };

    if (_byte3 > 0x5f) {
      pacIndex = _byte3 - 0x60;
    } else {
      pacIndex = _byte3 - 0x40;
    }

    pacData.underline = (pacIndex & 1) === 1;

    if (pacIndex <= 0xd) {
      pacData.color = ['white', 'green', 'blue', 'cyan', 'red', 'yellow', 'magenta', 'white'][Math.floor(pacIndex / 2)];
    } else if (pacIndex <= 0xf) {
      pacData.italics = true;
      pacData.color = 'white';
    } else {
      pacData.indent = Math.floor((pacIndex - 0x10) / 2) * 4;
    }

    return pacData; // Note that row has zero offset. The spec uses 1.
  }
  /**
   * Parse characters.
   * @returns An array with 1 to 2 codes corresponding to chars, if found. null otherwise.
   */
  ;

  _proto7.parseChars = function parseChars(a, b) {
    var channelNr;
    var charCodes = null;
    var charCode1 = null;

    if (a >= 0x19) {
      channelNr = 2;
      charCode1 = a - 8;
    } else {
      channelNr = 1;
      charCode1 = a;
    }

    if (charCode1 >= 0x11 && charCode1 <= 0x13) {
      // Special character
      var oneCode;

      if (charCode1 === 0x11) {
        oneCode = b + 0x50;
      } else if (charCode1 === 0x12) {
        oneCode = b + 0x70;
      } else {
        oneCode = b + 0x90;
      }

      this.logger.log(VerboseLevel.INFO, "Special char '" + getCharForByte(oneCode) + "' in channel " + channelNr);
      charCodes = [oneCode];
    } else if (a >= 0x20 && a <= 0x7f) {
      charCodes = b === 0 ? [a] : [a, b];
    }

    if (charCodes) {
      var hexCodes = numArrayToHexArray(charCodes);
      this.logger.log(VerboseLevel.DEBUG, 'Char codes =  ' + hexCodes.join(','));
      setLastCmd(a, b, this.cmdHistory);
    }

    return charCodes;
  }
  /**
   * Parse extended background attributes as well as new foreground color black.
   * @returns {Boolean} Tells if background attributes are found
   */
  ;

  _proto7.parseBackgroundAttributes = function parseBackgroundAttributes(a, b) {
    var case1 = (a === 0x10 || a === 0x18) && b >= 0x20 && b <= 0x2f;
    var case2 = (a === 0x17 || a === 0x1f) && b >= 0x2d && b <= 0x2f;

    if (!(case1 || case2)) {
      return false;
    }

    var index;
    var bkgData = {};

    if (a === 0x10 || a === 0x18) {
      index = Math.floor((b - 0x20) / 2);
      bkgData.background = backgroundColors[index];

      if (b % 2 === 1) {
        bkgData.background = bkgData.background + '_semi';
      }
    } else if (b === 0x2d) {
      bkgData.background = 'transparent';
    } else {
      bkgData.foreground = 'black';

      if (b === 0x2f) {
        bkgData.underline = true;
      }
    }

    var chNr = a <= 0x17 ? 1 : 2;
    var channel = this.channels[chNr];
    channel.setBkgData(bkgData);
    setLastCmd(a, b, this.cmdHistory);
    return true;
  }
  /**
   * Reset state of parser and its channels.
   */
  ;

  _proto7.reset = function reset() {
    for (var i = 0; i < Object.keys(this.channels).length; i++) {
      var channel = this.channels[i];

      if (channel) {
        channel.reset();
      }
    }

    this.cmdHistory = createCmdHistory();
  }
  /**
   * Trigger the generation of a cue, and the start of a new one if displayScreens are not empty.
   */
  ;

  _proto7.cueSplitAtTime = function cueSplitAtTime(t) {
    for (var i = 0; i < this.channels.length; i++) {
      var channel = this.channels[i];

      if (channel) {
        channel.cueSplitAtTime(t);
      }
    }
  };

  return Cea608Parser;
}();

function setLastCmd(a, b, cmdHistory) {
  cmdHistory.a = a;
  cmdHistory.b = b;
}

function hasCmdRepeated(a, b, cmdHistory) {
  return cmdHistory.a === a && cmdHistory.b === b;
}

function createCmdHistory() {
  return {
    a: null,
    b: null
  };
}

/* harmony default export */ __webpack_exports__["default"] = (Cea608Parser);

/***/ }),

/***/ "./src/utils/codecs.ts":
/*!*****************************!*\
  !*** ./src/utils/codecs.ts ***!
  \*****************************/
/*! exports provided: isCodecType, isCodecSupportedInMp4 */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "isCodecType", function() { return isCodecType; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "isCodecSupportedInMp4", function() { return isCodecSupportedInMp4; });
// from http://mp4ra.org/codecs.html
var sampleEntryCodesISO = {
  audio: {
    a3ds: true,
    'ac-3': true,
    'ac-4': true,
    alac: true,
    alaw: true,
    dra1: true,
    'dts+': true,
    'dts-': true,
    dtsc: true,
    dtse: true,
    dtsh: true,
    'ec-3': true,
    enca: true,
    g719: true,
    g726: true,
    m4ae: true,
    mha1: true,
    mha2: true,
    mhm1: true,
    mhm2: true,
    mlpa: true,
    mp4a: true,
    'raw ': true,
    Opus: true,
    samr: true,
    sawb: true,
    sawp: true,
    sevc: true,
    sqcp: true,
    ssmv: true,
    twos: true,
    ulaw: true
  },
  video: {
    avc1: true,
    avc2: true,
    avc3: true,
    avc4: true,
    avcp: true,
    av01: true,
    drac: true,
    dvav: true,
    dvhe: true,
    encv: true,
    hev1: true,
    hvc1: true,
    mjp2: true,
    mp4v: true,
    mvc1: true,
    mvc2: true,
    mvc3: true,
    mvc4: true,
    resv: true,
    rv60: true,
    s263: true,
    svc1: true,
    svc2: true,
    'vc-1': true,
    vp08: true,
    vp09: true
  },
  text: {
    stpp: true,
    wvtt: true
  }
};
function isCodecType(codec, type) {
  var typeCodes = sampleEntryCodesISO[type];
  return !!typeCodes && typeCodes[codec.slice(0, 4)] === true;
}
function isCodecSupportedInMp4(codec, type) {
  return MediaSource.isTypeSupported((type || 'video') + "/mp4;codecs=\"" + codec + "\"");
}

/***/ }),

/***/ "./src/utils/cues.ts":
/*!***************************!*\
  !*** ./src/utils/cues.ts ***!
  \***************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony import */ var _vttparser__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./vttparser */ "./src/utils/vttparser.ts");
/* harmony import */ var _webvtt_parser__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./webvtt-parser */ "./src/utils/webvtt-parser.ts");
/* harmony import */ var _texttrack_utils__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./texttrack-utils */ "./src/utils/texttrack-utils.ts");



var WHITESPACE_CHAR = /\s/;
var Cues = {
  newCue: function newCue(track, startTime, endTime, captionScreen) {
    var result = [];
    var row; // the type data states this is VTTCue, but it can potentially be a TextTrackCue on old browsers

    var cue;
    var indenting;
    var indent;
    var text;
    var Cue = self.VTTCue || self.TextTrackCue;

    for (var r = 0; r < captionScreen.rows.length; r++) {
      row = captionScreen.rows[r];
      indenting = true;
      indent = 0;
      text = '';

      if (!row.isEmpty()) {
        for (var c = 0; c < row.chars.length; c++) {
          if (WHITESPACE_CHAR.test(row.chars[c].uchar) && indenting) {
            indent++;
          } else {
            text += row.chars[c].uchar;
            indenting = false;
          }
        } // To be used for cleaning-up orphaned roll-up captions


        row.cueStartTime = startTime; // Give a slight bump to the endTime if it's equal to startTime to avoid a SyntaxError in IE

        if (startTime === endTime) {
          endTime += 0.0001;
        }

        if (indent >= 16) {
          indent--;
        } else {
          indent++;
        }

        var cueText = Object(_vttparser__WEBPACK_IMPORTED_MODULE_0__["fixLineBreaks"])(text.trim());
        var id = Object(_webvtt_parser__WEBPACK_IMPORTED_MODULE_1__["generateCueId"])(startTime, endTime, cueText); // If this cue already exists in the track do not push it

        if (!track || !track.cues || !track.cues.getCueById(id)) {
          cue = new Cue(startTime, endTime, cueText);
          cue.id = id;
          cue.line = r + 1;
          cue.align = 'left'; // Clamp the position between 10 and 80 percent (CEA-608 PAC indent code)
          // https://dvcs.w3.org/hg/text-tracks/raw-file/default/608toVTT/608toVTT.html#positioning-in-cea-608
          // Firefox throws an exception and captions break with out of bounds 0-100 values

          cue.position = 10 + Math.min(80, Math.floor(indent * 8 / 32) * 10);
          result.push(cue);
        }
      }
    }

    if (track && result.length) {
      // Sort bottom cues in reverse order so that they render in line order when overlapping in Chrome
      result.sort(function (cueA, cueB) {
        if (cueA.line === 'auto' || cueB.line === 'auto') {
          return 0;
        }

        if (cueA.line > 8 && cueB.line > 8) {
          return cueB.line - cueA.line;
        }

        return cueA.line - cueB.line;
      });
      result.forEach(function (cue) {
        return Object(_texttrack_utils__WEBPACK_IMPORTED_MODULE_2__["addCueToTrack"])(track, cue);
      });
    }

    return result;
  }
};
/* harmony default export */ __webpack_exports__["default"] = (Cues);

/***/ }),

/***/ "./src/utils/discontinuities.ts":
/*!**************************************!*\
  !*** ./src/utils/discontinuities.ts ***!
  \**************************************/
/*! exports provided: findFirstFragWithCC, shouldAlignOnDiscontinuities, findDiscontinuousReferenceFrag, adjustSlidingStart, alignStream, alignPDT, alignFragmentByPDTDelta, alignMediaPlaylistByPDT */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "findFirstFragWithCC", function() { return findFirstFragWithCC; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "shouldAlignOnDiscontinuities", function() { return shouldAlignOnDiscontinuities; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "findDiscontinuousReferenceFrag", function() { return findDiscontinuousReferenceFrag; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "adjustSlidingStart", function() { return adjustSlidingStart; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "alignStream", function() { return alignStream; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "alignPDT", function() { return alignPDT; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "alignFragmentByPDTDelta", function() { return alignFragmentByPDTDelta; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "alignMediaPlaylistByPDT", function() { return alignMediaPlaylistByPDT; });
/* harmony import */ var _home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./src/polyfills/number */ "./src/polyfills/number.ts");
/* harmony import */ var _logger__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./logger */ "./src/utils/logger.ts");
/* harmony import */ var _controller_level_helper__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../controller/level-helper */ "./src/controller/level-helper.ts");




function findFirstFragWithCC(fragments, cc) {
  var firstFrag = null;

  for (var i = 0, len = fragments.length; i < len; i++) {
    var currentFrag = fragments[i];

    if (currentFrag && currentFrag.cc === cc) {
      firstFrag = currentFrag;
      break;
    }
  }

  return firstFrag;
}
function shouldAlignOnDiscontinuities(lastFrag, lastLevel, details) {
  if (lastLevel.details) {
    if (details.endCC > details.startCC || lastFrag && lastFrag.cc < details.startCC) {
      return true;
    }
  }

  return false;
} // Find the first frag in the previous level which matches the CC of the first frag of the new level

function findDiscontinuousReferenceFrag(prevDetails, curDetails) {
  var prevFrags = prevDetails.fragments;
  var curFrags = curDetails.fragments;

  if (!curFrags.length || !prevFrags.length) {
    _logger__WEBPACK_IMPORTED_MODULE_1__["logger"].log('No fragments to align');
    return;
  }

  var prevStartFrag = findFirstFragWithCC(prevFrags, curFrags[0].cc);

  if (!prevStartFrag || prevStartFrag && !prevStartFrag.startPTS) {
    _logger__WEBPACK_IMPORTED_MODULE_1__["logger"].log('No frag in previous level to align on');
    return;
  }

  return prevStartFrag;
}

function adjustFragmentStart(frag, sliding) {
  if (frag) {
    var start = frag.start + sliding;
    frag.start = frag.startPTS = start;
    frag.endPTS = start + frag.duration;
  }
}

function adjustSlidingStart(sliding, details) {
  // Update segments
  var fragments = details.fragments;

  for (var i = 0, len = fragments.length; i < len; i++) {
    adjustFragmentStart(fragments[i], sliding);
  } // Update LL-HLS parts at the end of the playlist


  if (details.fragmentHint) {
    adjustFragmentStart(details.fragmentHint, sliding);
  }

  details.alignedSliding = true;
}
/**
 * Using the parameters of the last level, this function computes PTS' of the new fragments so that they form a
 * contiguous stream with the last fragments.
 * The PTS of a fragment lets Hls.js know where it fits into a stream - by knowing every PTS, we know which fragment to
 * download at any given time. PTS is normally computed when the fragment is demuxed, so taking this step saves us time
 * and an extra download.
 * @param lastFrag
 * @param lastLevel
 * @param details
 */

function alignStream(lastFrag, lastLevel, details) {
  if (!lastLevel) {
    return;
  }

  alignDiscontinuities(lastFrag, details, lastLevel);

  if (!details.alignedSliding && lastLevel.details) {
    // If the PTS wasn't figured out via discontinuity sequence that means there was no CC increase within the level.
    // Aligning via Program Date Time should therefore be reliable, since PDT should be the same within the same
    // discontinuity sequence.
    alignPDT(details, lastLevel.details);
  }

  if (!details.alignedSliding && lastLevel.details && !details.skippedSegments) {
    // Try to align on sn so that we pick a better start fragment.
    // Do not perform this on playlists with delta updates as this is only to align levels on switch
    // and adjustSliding only adjusts fragments after skippedSegments.
    Object(_controller_level_helper__WEBPACK_IMPORTED_MODULE_2__["adjustSliding"])(lastLevel.details, details);
  }
}
/**
 * Computes the PTS if a new level's fragments using the PTS of a fragment in the last level which shares the same
 * discontinuity sequence.
 * @param lastFrag - The last Fragment which shares the same discontinuity sequence
 * @param lastLevel - The details of the last loaded level
 * @param details - The details of the new level
 */

function alignDiscontinuities(lastFrag, details, lastLevel) {
  if (shouldAlignOnDiscontinuities(lastFrag, lastLevel, details)) {
    var referenceFrag = findDiscontinuousReferenceFrag(lastLevel.details, details);

    if (referenceFrag && Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(referenceFrag.start)) {
      _logger__WEBPACK_IMPORTED_MODULE_1__["logger"].log("Adjusting PTS using last level due to CC increase within current level " + details.url);
      adjustSlidingStart(referenceFrag.start, details);
    }
  }
}
/**
 * Computes the PTS of a new level's fragments using the difference in Program Date Time from the last level.
 * @param details - The details of the new level
 * @param lastDetails - The details of the last loaded level
 */


function alignPDT(details, lastDetails) {
  // This check protects the unsafe "!" usage below for null program date time access.
  if (!lastDetails.fragments.length || !details.hasProgramDateTime || !lastDetails.hasProgramDateTime) {
    return;
  } // if last level sliding is 1000 and its first frag PROGRAM-DATE-TIME is 2017-08-20 1:10:00 AM
  // and if new details first frag PROGRAM DATE-TIME is 2017-08-20 1:10:08 AM
  // then we can deduce that playlist B sliding is 1000+8 = 1008s


  var lastPDT = lastDetails.fragments[0].programDateTime; // hasProgramDateTime check above makes this safe.

  var newPDT = details.fragments[0].programDateTime; // date diff is in ms. frag.start is in seconds

  var sliding = (newPDT - lastPDT) / 1000 + lastDetails.fragments[0].start;

  if (sliding && Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(sliding)) {
    _logger__WEBPACK_IMPORTED_MODULE_1__["logger"].log("Adjusting PTS using programDateTime delta " + (newPDT - lastPDT) + "ms, sliding:" + sliding.toFixed(3) + " " + details.url + " ");
    adjustSlidingStart(sliding, details);
  }
}
function alignFragmentByPDTDelta(frag, delta) {
  var programDateTime = frag.programDateTime;
  if (!programDateTime) return;
  var start = (programDateTime - delta) / 1000;
  frag.start = frag.startPTS = start;
  frag.endPTS = start + frag.duration;
}
/**
 * Ensures appropriate time-alignment between renditions based on PDT. Unlike `alignPDT`, which adjusts
 * the timeline based on the delta between PDTs of the 0th fragment of two playlists/`LevelDetails`,
 * this function assumes the timelines represented in `refDetails` are accurate, including the PDTs,
 * and uses the "wallclock"/PDT timeline as a cross-reference to `details`, adjusting the presentation
 * times/timelines of `details` accordingly.
 * Given the asynchronous nature of fetches and initial loads of live `main` and audio/subtitle tracks,
 * the primary purpose of this function is to ensure the "local timelines" of audio/subtitle tracks
 * are aligned to the main/video timeline, using PDT as the cross-reference/"anchor" that should
 * be consistent across playlists, per the HLS spec.
 * @param details - The details of the rendition you'd like to time-align (e.g. an audio rendition).
 * @param refDetails - The details of the reference rendition with start and PDT times for alignment.
 */

function alignMediaPlaylistByPDT(details, refDetails) {
  // This check protects the unsafe "!" usage below for null program date time access.
  if (!refDetails.fragments.length || !details.hasProgramDateTime || !refDetails.hasProgramDateTime) {
    return;
  }

  var refPDT = refDetails.fragments[0].programDateTime; // hasProgramDateTime check above makes this safe.

  var refStart = refDetails.fragments[0].start; // Use the delta between the reference details' presentation timeline's start time and its PDT
  // to align the other rendtion's timeline.

  var delta = refPDT - refStart * 1000; // Per spec: "If any Media Playlist in a Master Playlist contains an EXT-X-PROGRAM-DATE-TIME tag, then all
  // Media Playlists in that Master Playlist MUST contain EXT-X-PROGRAM-DATE-TIME tags with consistent mappings
  // of date and time to media timestamps."
  // So we should be able to use each rendition's PDT as a reference time and use the delta to compute our relevant
  // start and end times.
  // NOTE: This code assumes each level/details timelines have already been made "internally consistent"

  details.fragments.forEach(function (frag) {
    alignFragmentByPDTDelta(frag, delta);
  });

  if (details.fragmentHint) {
    alignFragmentByPDTDelta(details.fragmentHint, delta);
  }

  details.alignedSliding = true;
}

/***/ }),

/***/ "./src/utils/ewma-bandwidth-estimator.ts":
/*!***********************************************!*\
  !*** ./src/utils/ewma-bandwidth-estimator.ts ***!
  \***********************************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony import */ var _utils_ewma__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../utils/ewma */ "./src/utils/ewma.ts");
/*
 * EWMA Bandwidth Estimator
 *  - heavily inspired from shaka-player
 * Tracks bandwidth samples and estimates available bandwidth.
 * Based on the minimum of two exponentially-weighted moving averages with
 * different half-lives.
 */


var EwmaBandWidthEstimator = /*#__PURE__*/function () {
  function EwmaBandWidthEstimator(slow, fast, defaultEstimate) {
    this.defaultEstimate_ = void 0;
    this.minWeight_ = void 0;
    this.minDelayMs_ = void 0;
    this.slow_ = void 0;
    this.fast_ = void 0;
    this.defaultEstimate_ = defaultEstimate;
    this.minWeight_ = 0.001;
    this.minDelayMs_ = 50;
    this.slow_ = new _utils_ewma__WEBPACK_IMPORTED_MODULE_0__["default"](slow);
    this.fast_ = new _utils_ewma__WEBPACK_IMPORTED_MODULE_0__["default"](fast);
  }

  var _proto = EwmaBandWidthEstimator.prototype;

  _proto.update = function update(slow, fast) {
    var slow_ = this.slow_,
        fast_ = this.fast_;

    if (this.slow_.halfLife !== slow) {
      this.slow_ = new _utils_ewma__WEBPACK_IMPORTED_MODULE_0__["default"](slow, slow_.getEstimate(), slow_.getTotalWeight());
    }

    if (this.fast_.halfLife !== fast) {
      this.fast_ = new _utils_ewma__WEBPACK_IMPORTED_MODULE_0__["default"](fast, fast_.getEstimate(), fast_.getTotalWeight());
    }
  };

  _proto.sample = function sample(durationMs, numBytes) {
    durationMs = Math.max(durationMs, this.minDelayMs_);
    var numBits = 8 * numBytes; // weight is duration in seconds

    var durationS = durationMs / 1000; // value is bandwidth in bits/s

    var bandwidthInBps = numBits / durationS;
    this.fast_.sample(durationS, bandwidthInBps);
    this.slow_.sample(durationS, bandwidthInBps);
  };

  _proto.canEstimate = function canEstimate() {
    var fast = this.fast_;
    return fast && fast.getTotalWeight() >= this.minWeight_;
  };

  _proto.getEstimate = function getEstimate() {
    if (this.canEstimate()) {
      // console.log('slow estimate:'+ Math.round(this.slow_.getEstimate()));
      // console.log('fast estimate:'+ Math.round(this.fast_.getEstimate()));
      // Take the minimum of these two estimates.  This should have the effect of
      // adapting down quickly, but up more slowly.
      return Math.min(this.fast_.getEstimate(), this.slow_.getEstimate());
    } else {
      return this.defaultEstimate_;
    }
  };

  _proto.destroy = function destroy() {};

  return EwmaBandWidthEstimator;
}();

/* harmony default export */ __webpack_exports__["default"] = (EwmaBandWidthEstimator);

/***/ }),

/***/ "./src/utils/ewma.ts":
/*!***************************!*\
  !*** ./src/utils/ewma.ts ***!
  \***************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/*
 * compute an Exponential Weighted moving average
 * - https://en.wikipedia.org/wiki/Moving_average#Exponential_moving_average
 *  - heavily inspired from shaka-player
 */
var EWMA = /*#__PURE__*/function () {
  //  About half of the estimated value will be from the last |halfLife| samples by weight.
  function EWMA(halfLife, estimate, weight) {
    if (estimate === void 0) {
      estimate = 0;
    }

    if (weight === void 0) {
      weight = 0;
    }

    this.halfLife = void 0;
    this.alpha_ = void 0;
    this.estimate_ = void 0;
    this.totalWeight_ = void 0;
    this.halfLife = halfLife; // Larger values of alpha expire historical data more slowly.

    this.alpha_ = halfLife ? Math.exp(Math.log(0.5) / halfLife) : 0;
    this.estimate_ = estimate;
    this.totalWeight_ = weight;
  }

  var _proto = EWMA.prototype;

  _proto.sample = function sample(weight, value) {
    var adjAlpha = Math.pow(this.alpha_, weight);
    this.estimate_ = value * (1 - adjAlpha) + adjAlpha * this.estimate_;
    this.totalWeight_ += weight;
  };

  _proto.getTotalWeight = function getTotalWeight() {
    return this.totalWeight_;
  };

  _proto.getEstimate = function getEstimate() {
    if (this.alpha_) {
      var zeroFactor = 1 - Math.pow(this.alpha_, this.totalWeight_);

      if (zeroFactor) {
        return this.estimate_ / zeroFactor;
      }
    }

    return this.estimate_;
  };

  return EWMA;
}();

/* harmony default export */ __webpack_exports__["default"] = (EWMA);

/***/ }),

/***/ "./src/utils/fetch-loader.ts":
/*!***********************************!*\
  !*** ./src/utils/fetch-loader.ts ***!
  \***********************************/
/*! exports provided: fetchSupported, default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fetchSupported", function() { return fetchSupported; });
/* harmony import */ var _home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./src/polyfills/number */ "./src/polyfills/number.ts");
/* harmony import */ var _loader_load_stats__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../loader/load-stats */ "./src/loader/load-stats.ts");
/* harmony import */ var _demux_chunk_cache__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../demux/chunk-cache */ "./src/demux/chunk-cache.ts");



function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }

function _wrapNativeSuper(Class) { var _cache = typeof Map === "function" ? new Map() : undefined; _wrapNativeSuper = function _wrapNativeSuper(Class) { if (Class === null || !_isNativeFunction(Class)) return Class; if (typeof Class !== "function") { throw new TypeError("Super expression must either be null or a function"); } if (typeof _cache !== "undefined") { if (_cache.has(Class)) return _cache.get(Class); _cache.set(Class, Wrapper); } function Wrapper() { return _construct(Class, arguments, _getPrototypeOf(this).constructor); } Wrapper.prototype = Object.create(Class.prototype, { constructor: { value: Wrapper, enumerable: false, writable: true, configurable: true } }); return _setPrototypeOf(Wrapper, Class); }; return _wrapNativeSuper(Class); }

function _construct(Parent, args, Class) { if (_isNativeReflectConstruct()) { _construct = Reflect.construct; } else { _construct = function _construct(Parent, args, Class) { var a = [null]; a.push.apply(a, args); var Constructor = Function.bind.apply(Parent, a); var instance = new Constructor(); if (Class) _setPrototypeOf(instance, Class.prototype); return instance; }; } return _construct.apply(null, arguments); }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

function _isNativeFunction(fn) { return Function.toString.call(fn).indexOf("[native code]") !== -1; }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }

function _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }



function fetchSupported() {
  if ( // @ts-ignore
  self.fetch && self.AbortController && self.ReadableStream && self.Request) {
    try {
      new self.ReadableStream({}); // eslint-disable-line no-new

      return true;
    } catch (e) {
      /* noop */
    }
  }

  return false;
}

var FetchLoader = /*#__PURE__*/function () {
  function FetchLoader(config
  /* HlsConfig */
  ) {
    this.fetchSetup = void 0;
    this.requestTimeout = void 0;
    this.request = void 0;
    this.response = void 0;
    this.controller = void 0;
    this.context = void 0;
    this.config = null;
    this.callbacks = null;
    this.stats = void 0;
    this.loader = null;
    this.fetchSetup = config.fetchSetup || getRequest;
    this.controller = new self.AbortController();
    this.stats = new _loader_load_stats__WEBPACK_IMPORTED_MODULE_1__["LoadStats"]();
  }

  var _proto = FetchLoader.prototype;

  _proto.destroy = function destroy() {
    this.loader = this.callbacks = null;
    this.abortInternal();
  };

  _proto.abortInternal = function abortInternal() {
    var response = this.response;

    if (!response || !response.ok) {
      this.stats.aborted = true;
      this.controller.abort();
    }
  };

  _proto.abort = function abort() {
    var _this$callbacks;

    this.abortInternal();

    if ((_this$callbacks = this.callbacks) !== null && _this$callbacks !== void 0 && _this$callbacks.onAbort) {
      this.callbacks.onAbort(this.stats, this.context, this.response);
    }
  };

  _proto.load = function load(context, config, callbacks) {
    var _this = this;

    var stats = this.stats;

    if (stats.loading.start) {
      throw new Error('Loader can only be used once.');
    }

    stats.loading.start = self.performance.now();
    var initParams = getRequestParameters(context, this.controller.signal);
    var onProgress = callbacks.onProgress;
    var isArrayBuffer = context.responseType === 'arraybuffer';
    var LENGTH = isArrayBuffer ? 'byteLength' : 'length';
    this.context = context;
    this.config = config;
    this.callbacks = callbacks;
    this.request = this.fetchSetup(context, initParams);
    self.clearTimeout(this.requestTimeout);
    this.requestTimeout = self.setTimeout(function () {
      _this.abortInternal();

      callbacks.onTimeout(stats, context, _this.response);
    }, config.timeout);
    self.fetch(this.request).then(function (response) {
      _this.response = _this.loader = response;

      if (!response.ok) {
        var status = response.status,
            statusText = response.statusText;
        throw new FetchError(statusText || 'fetch, bad network response', status, response);
      }

      stats.loading.first = Math.max(self.performance.now(), stats.loading.start);
      stats.total = parseInt(response.headers.get('Content-Length') || '0');

      if (onProgress && Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(config.highWaterMark)) {
        return _this.loadProgressively(response, stats, context, config.highWaterMark, onProgress);
      }

      if (isArrayBuffer) {
        return response.arrayBuffer();
      }

      return response.text();
    }).then(function (responseData) {
      var response = _this.response;
      self.clearTimeout(_this.requestTimeout);
      stats.loading.end = Math.max(self.performance.now(), stats.loading.first);
      stats.loaded = stats.total = responseData[LENGTH];
      var loaderResponse = {
        url: response.url,
        data: responseData
      };

      if (onProgress && !Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(config.highWaterMark)) {
        onProgress(stats, context, responseData, response);
      }

      callbacks.onSuccess(loaderResponse, stats, context, response);
    }).catch(function (error) {
      self.clearTimeout(_this.requestTimeout);

      if (stats.aborted) {
        return;
      } // CORS errors result in an undefined code. Set it to 0 here to align with XHR's behavior


      var code = error.code || 0;
      callbacks.onError({
        code: code,
        text: error.message
      }, context, error.details);
    });
  };

  _proto.getCacheAge = function getCacheAge() {
    var result = null;

    if (this.response) {
      var ageHeader = this.response.headers.get('age');
      result = ageHeader ? parseFloat(ageHeader) : null;
    }

    return result;
  };

  _proto.loadProgressively = function loadProgressively(response, stats, context, highWaterMark, onProgress) {
    if (highWaterMark === void 0) {
      highWaterMark = 0;
    }

    var chunkCache = new _demux_chunk_cache__WEBPACK_IMPORTED_MODULE_2__["default"]();
    var reader = response.body.getReader();

    var pump = function pump() {
      return reader.read().then(function (data) {
        if (data.done) {
          if (chunkCache.dataLength) {
            onProgress(stats, context, chunkCache.flush(), response);
          }

          return Promise.resolve(new ArrayBuffer(0));
        }

        var chunk = data.value;
        var len = chunk.length;
        stats.loaded += len;

        if (len < highWaterMark || chunkCache.dataLength) {
          // The current chunk is too small to to be emitted or the cache already has data
          // Push it to the cache
          chunkCache.push(chunk);

          if (chunkCache.dataLength >= highWaterMark) {
            // flush in order to join the typed arrays
            onProgress(stats, context, chunkCache.flush(), response);
          }
        } else {
          // If there's nothing cached already, and the chache is large enough
          // just emit the progress event
          onProgress(stats, context, chunk, response);
        }

        return pump();
      }).catch(function () {
        /* aborted */
        return Promise.reject();
      });
    };

    return pump();
  };

  return FetchLoader;
}();

function getRequestParameters(context, signal) {
  var initParams = {
    method: 'GET',
    mode: 'cors',
    credentials: 'same-origin',
    signal: signal,
    headers: new self.Headers(_extends({}, context.headers))
  };

  if (context.rangeEnd) {
    initParams.headers.set('Range', 'bytes=' + context.rangeStart + '-' + String(context.rangeEnd - 1));
  }

  return initParams;
}

function getRequest(context, initParams) {
  return new self.Request(context.url, initParams);
}

var FetchError = /*#__PURE__*/function (_Error) {
  _inheritsLoose(FetchError, _Error);

  function FetchError(message, code, details) {
    var _this2;

    _this2 = _Error.call(this, message) || this;
    _this2.code = void 0;
    _this2.details = void 0;
    _this2.code = code;
    _this2.details = details;
    return _this2;
  }

  return FetchError;
}( /*#__PURE__*/_wrapNativeSuper(Error));

/* harmony default export */ __webpack_exports__["default"] = (FetchLoader);

/***/ }),

/***/ "./src/utils/imsc1-ttml-parser.ts":
/*!****************************************!*\
  !*** ./src/utils/imsc1-ttml-parser.ts ***!
  \****************************************/
/*! exports provided: IMSC1_CODEC, parseIMSC1 */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "IMSC1_CODEC", function() { return IMSC1_CODEC; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "parseIMSC1", function() { return parseIMSC1; });
/* harmony import */ var _mp4_tools__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./mp4-tools */ "./src/utils/mp4-tools.ts");
/* harmony import */ var _vttparser__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./vttparser */ "./src/utils/vttparser.ts");
/* harmony import */ var _vttcue__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./vttcue */ "./src/utils/vttcue.ts");
/* harmony import */ var _demux_id3__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../demux/id3 */ "./src/demux/id3.ts");
/* harmony import */ var _timescale_conversion__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ./timescale-conversion */ "./src/utils/timescale-conversion.ts");
/* harmony import */ var _webvtt_parser__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ./webvtt-parser */ "./src/utils/webvtt-parser.ts");
function _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }







var IMSC1_CODEC = 'stpp.ttml.im1t'; // Time format: h:m:s:frames(.subframes)

var HMSF_REGEX = /^(\d{2,}):(\d{2}):(\d{2}):(\d{2})\.?(\d+)?$/; // Time format: hours, minutes, seconds, milliseconds, frames, ticks

var TIME_UNIT_REGEX = /^(\d*(?:\.\d*)?)(h|m|s|ms|f|t)$/;
var textAlignToLineAlign = {
  left: 'start',
  center: 'center',
  right: 'end',
  start: 'start',
  end: 'end'
};
function parseIMSC1(payload, initPTS, timescale, callBack, errorCallBack) {
  var results = Object(_mp4_tools__WEBPACK_IMPORTED_MODULE_0__["findBox"])(new Uint8Array(payload), ['mdat']);

  if (results.length === 0) {
    errorCallBack(new Error('Could not parse IMSC1 mdat'));
    return;
  }

  var mdat = results[0];
  var ttml = Object(_demux_id3__WEBPACK_IMPORTED_MODULE_3__["utf8ArrayToStr"])(new Uint8Array(payload, mdat.start, mdat.end - mdat.start));
  var syncTime = Object(_timescale_conversion__WEBPACK_IMPORTED_MODULE_4__["toTimescaleFromScale"])(initPTS, 1, timescale);

  try {
    callBack(parseTTML(ttml, syncTime));
  } catch (error) {
    errorCallBack(error);
  }
}

function parseTTML(ttml, syncTime) {
  var parser = new DOMParser();
  var xmlDoc = parser.parseFromString(ttml, 'text/xml');
  var tt = xmlDoc.getElementsByTagName('tt')[0];

  if (!tt) {
    throw new Error('Invalid ttml');
  }

  var defaultRateInfo = {
    frameRate: 30,
    subFrameRate: 1,
    frameRateMultiplier: 0,
    tickRate: 0
  };
  var rateInfo = Object.keys(defaultRateInfo).reduce(function (result, key) {
    result[key] = tt.getAttribute("ttp:" + key) || defaultRateInfo[key];
    return result;
  }, {});
  var trim = tt.getAttribute('xml:space') !== 'preserve';
  var styleElements = collectionToDictionary(getElementCollection(tt, 'styling', 'style'));
  var regionElements = collectionToDictionary(getElementCollection(tt, 'layout', 'region'));
  var cueElements = getElementCollection(tt, 'body', '[begin]');
  return [].map.call(cueElements, function (cueElement) {
    var cueText = getTextContent(cueElement, trim);

    if (!cueText || !cueElement.hasAttribute('begin')) {
      return null;
    }

    var startTime = parseTtmlTime(cueElement.getAttribute('begin'), rateInfo);
    var duration = parseTtmlTime(cueElement.getAttribute('dur'), rateInfo);
    var endTime = parseTtmlTime(cueElement.getAttribute('end'), rateInfo);

    if (startTime === null) {
      throw timestampParsingError(cueElement);
    }

    if (endTime === null) {
      if (duration === null) {
        throw timestampParsingError(cueElement);
      }

      endTime = startTime + duration;
    }

    var cue = new _vttcue__WEBPACK_IMPORTED_MODULE_2__["default"](startTime - syncTime, endTime - syncTime, cueText);
    cue.id = Object(_webvtt_parser__WEBPACK_IMPORTED_MODULE_5__["generateCueId"])(cue.startTime, cue.endTime, cue.text);
    var region = regionElements[cueElement.getAttribute('region')];
    var style = styleElements[cueElement.getAttribute('style')]; // TODO: Add regions to track and cue (origin and extend)
    // These values are hard-coded (for now) to simulate region settings in the demo

    cue.position = 10;
    cue.size = 80; // Apply styles to cue

    var styles = getTtmlStyles(region, style);
    var textAlign = styles.textAlign;

    if (textAlign) {
      // cue.positionAlign not settable in FF~2016
      var lineAlign = textAlignToLineAlign[textAlign];

      if (lineAlign) {
        cue.lineAlign = lineAlign;
      }

      cue.align = textAlign;
    }

    _extends(cue, styles);

    return cue;
  }).filter(function (cue) {
    return cue !== null;
  });
}

function getElementCollection(fromElement, parentName, childName) {
  var parent = fromElement.getElementsByTagName(parentName)[0];

  if (parent) {
    return [].slice.call(parent.querySelectorAll(childName));
  }

  return [];
}

function collectionToDictionary(elementsWithId) {
  return elementsWithId.reduce(function (dict, element) {
    var id = element.getAttribute('xml:id');

    if (id) {
      dict[id] = element;
    }

    return dict;
  }, {});
}

function getTextContent(element, trim) {
  return [].slice.call(element.childNodes).reduce(function (str, node, i) {
    var _node$childNodes;

    if (node.nodeName === 'br' && i) {
      return str + '\n';
    }

    if ((_node$childNodes = node.childNodes) !== null && _node$childNodes !== void 0 && _node$childNodes.length) {
      return getTextContent(node, trim);
    } else if (trim) {
      return str + node.textContent.trim().replace(/\s+/g, ' ');
    }

    return str + node.textContent;
  }, '');
}

function getTtmlStyles(region, style) {
  var ttsNs = 'http://www.w3.org/ns/ttml#styling';
  var styleAttributes = ['displayAlign', 'textAlign', 'color', 'backgroundColor', 'fontSize', 'fontFamily' // 'fontWeight',
  // 'lineHeight',
  // 'wrapOption',
  // 'fontStyle',
  // 'direction',
  // 'writingMode'
  ];
  return styleAttributes.reduce(function (styles, name) {
    var value = getAttributeNS(style, ttsNs, name) || getAttributeNS(region, ttsNs, name);

    if (value) {
      styles[name] = value;
    }

    return styles;
  }, {});
}

function getAttributeNS(element, ns, name) {
  return element.hasAttributeNS(ns, name) ? element.getAttributeNS(ns, name) : null;
}

function timestampParsingError(node) {
  return new Error("Could not parse ttml timestamp " + node);
}

function parseTtmlTime(timeAttributeValue, rateInfo) {
  if (!timeAttributeValue) {
    return null;
  }

  var seconds = Object(_vttparser__WEBPACK_IMPORTED_MODULE_1__["parseTimeStamp"])(timeAttributeValue);

  if (seconds === null) {
    if (HMSF_REGEX.test(timeAttributeValue)) {
      seconds = parseHoursMinutesSecondsFrames(timeAttributeValue, rateInfo);
    } else if (TIME_UNIT_REGEX.test(timeAttributeValue)) {
      seconds = parseTimeUnits(timeAttributeValue, rateInfo);
    }
  }

  return seconds;
}

function parseHoursMinutesSecondsFrames(timeAttributeValue, rateInfo) {
  var m = HMSF_REGEX.exec(timeAttributeValue);
  var frames = (m[4] | 0) + (m[5] | 0) / rateInfo.subFrameRate;
  return (m[1] | 0) * 3600 + (m[2] | 0) * 60 + (m[3] | 0) + frames / rateInfo.frameRate;
}

function parseTimeUnits(timeAttributeValue, rateInfo) {
  var m = TIME_UNIT_REGEX.exec(timeAttributeValue);
  var value = Number(m[1]);
  var unit = m[2];

  switch (unit) {
    case 'h':
      return value * 3600;

    case 'm':
      return value * 60;

    case 'ms':
      return value * 1000;

    case 'f':
      return value / rateInfo.frameRate;

    case 't':
      return value / rateInfo.tickRate;
  }

  return value;
}

/***/ }),

/***/ "./src/utils/logger.ts":
/*!*****************************!*\
  !*** ./src/utils/logger.ts ***!
  \*****************************/
/*! exports provided: enableLogs, logger */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "enableLogs", function() { return enableLogs; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "logger", function() { return logger; });
var noop = function noop() {};

var fakeLogger = {
  trace: noop,
  debug: noop,
  log: noop,
  warn: noop,
  info: noop,
  error: noop
};
var exportedLogger = fakeLogger; // let lastCallTime;
// function formatMsgWithTimeInfo(type, msg) {
//   const now = Date.now();
//   const diff = lastCallTime ? '+' + (now - lastCallTime) : '0';
//   lastCallTime = now;
//   msg = (new Date(now)).toISOString() + ' | [' +  type + '] > ' + msg + ' ( ' + diff + ' ms )';
//   return msg;
// }

function consolePrintFn(type) {
  var func = self.console[type];

  if (func) {
    return func.bind(self.console, "[" + type + "] >");
  }

  return noop;
}

function exportLoggerFunctions(debugConfig) {
  for (var _len = arguments.length, functions = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
    functions[_key - 1] = arguments[_key];
  }

  functions.forEach(function (type) {
    exportedLogger[type] = debugConfig[type] ? debugConfig[type].bind(debugConfig) : consolePrintFn(type);
  });
}

function enableLogs(debugConfig) {
  // check that console is available
  if (self.console && debugConfig === true || typeof debugConfig === 'object') {
    exportLoggerFunctions(debugConfig, // Remove out from list here to hard-disable a log-level
    // 'trace',
    'debug', 'log', 'info', 'warn', 'error'); // Some browsers don't allow to use bind on console object anyway
    // fallback to default if needed

    try {
      exportedLogger.log();
    } catch (e) {
      exportedLogger = fakeLogger;
    }
  } else {
    exportedLogger = fakeLogger;
  }
}
var logger = exportedLogger;

/***/ }),

/***/ "./src/utils/mediakeys-helper.ts":
/*!***************************************!*\
  !*** ./src/utils/mediakeys-helper.ts ***!
  \***************************************/
/*! exports provided: KeySystems, requestMediaKeySystemAccess */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "KeySystems", function() { return KeySystems; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "requestMediaKeySystemAccess", function() { return requestMediaKeySystemAccess; });
/**
 * @see https://developer.mozilla.org/en-US/docs/Web/API/Navigator/requestMediaKeySystemAccess
 */
var KeySystems;

(function (KeySystems) {
  KeySystems["WIDEVINE"] = "com.widevine.alpha";
  KeySystems["PLAYREADY"] = "com.microsoft.playready";
})(KeySystems || (KeySystems = {}));

var requestMediaKeySystemAccess = function () {
  if (typeof self !== 'undefined' && self.navigator && self.navigator.requestMediaKeySystemAccess) {
    return self.navigator.requestMediaKeySystemAccess.bind(self.navigator);
  } else {
    return null;
  }
}();



/***/ }),

/***/ "./src/utils/mediasource-helper.ts":
/*!*****************************************!*\
  !*** ./src/utils/mediasource-helper.ts ***!
  \*****************************************/
/*! exports provided: getMediaSource */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getMediaSource", function() { return getMediaSource; });
/**
 * MediaSource helper
 */
function getMediaSource() {
  return self.MediaSource || self.WebKitMediaSource;
}

/***/ }),

/***/ "./src/utils/mp4-tools.ts":
/*!********************************!*\
  !*** ./src/utils/mp4-tools.ts ***!
  \********************************/
/*! exports provided: bin2str, readUint16, readUint32, writeUint32, findBox, parseSegmentIndex, parseInitSegment, getStartDTS, getDuration, computeRawDurationFromSamples, offsetStartDTS, segmentValidRange, appendUint8Array */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "bin2str", function() { return bin2str; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "readUint16", function() { return readUint16; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "readUint32", function() { return readUint32; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "writeUint32", function() { return writeUint32; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "findBox", function() { return findBox; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "parseSegmentIndex", function() { return parseSegmentIndex; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "parseInitSegment", function() { return parseInitSegment; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getStartDTS", function() { return getStartDTS; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getDuration", function() { return getDuration; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "computeRawDurationFromSamples", function() { return computeRawDurationFromSamples; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "offsetStartDTS", function() { return offsetStartDTS; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "segmentValidRange", function() { return segmentValidRange; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "appendUint8Array", function() { return appendUint8Array; });
/* harmony import */ var _typed_array__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./typed-array */ "./src/utils/typed-array.ts");
/* harmony import */ var _loader_fragment__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../loader/fragment */ "./src/loader/fragment.ts");


var UINT32_MAX = Math.pow(2, 32) - 1;
var push = [].push;
function bin2str(data) {
  return String.fromCharCode.apply(null, data);
}
function readUint16(buffer, offset) {
  if ('data' in buffer) {
    offset += buffer.start;
    buffer = buffer.data;
  }

  var val = buffer[offset] << 8 | buffer[offset + 1];
  return val < 0 ? 65536 + val : val;
}
function readUint32(buffer, offset) {
  if ('data' in buffer) {
    offset += buffer.start;
    buffer = buffer.data;
  }

  var val = buffer[offset] << 24 | buffer[offset + 1] << 16 | buffer[offset + 2] << 8 | buffer[offset + 3];
  return val < 0 ? 4294967296 + val : val;
}
function writeUint32(buffer, offset, value) {
  if ('data' in buffer) {
    offset += buffer.start;
    buffer = buffer.data;
  }

  buffer[offset] = value >> 24;
  buffer[offset + 1] = value >> 16 & 0xff;
  buffer[offset + 2] = value >> 8 & 0xff;
  buffer[offset + 3] = value & 0xff;
} // Find the data for a box specified by its path

function findBox(input, path) {
  var results = [];

  if (!path.length) {
    // short-circuit the search for empty paths
    return results;
  }

  var data;
  var start;
  var end;

  if ('data' in input) {
    data = input.data;
    start = input.start;
    end = input.end;
  } else {
    data = input;
    start = 0;
    end = data.byteLength;
  }

  for (var i = start; i < end;) {
    var size = readUint32(data, i);
    var type = bin2str(data.subarray(i + 4, i + 8));
    var endbox = size > 1 ? i + size : end;

    if (type === path[0]) {
      if (path.length === 1) {
        // this is the end of the path and we've found the box we were
        // looking for
        results.push({
          data: data,
          start: i + 8,
          end: endbox
        });
      } else {
        // recursively search for the next box along the path
        var subresults = findBox({
          data: data,
          start: i + 8,
          end: endbox
        }, path.slice(1));

        if (subresults.length) {
          push.apply(results, subresults);
        }
      }
    }

    i = endbox;
  } // we've finished searching all of data


  return results;
}
function parseSegmentIndex(initSegment) {
  var moovBox = findBox(initSegment, ['moov']);
  var moov = moovBox[0];
  var moovEndOffset = moov ? moov.end : null; // we need this in case we need to chop of garbage of the end of current data

  var sidxBox = findBox(initSegment, ['sidx']);

  if (!sidxBox || !sidxBox[0]) {
    return null;
  }

  var references = [];
  var sidx = sidxBox[0];
  var version = sidx.data[0]; // set initial offset, we skip the reference ID (not needed)

  var index = version === 0 ? 8 : 16;
  var timescale = readUint32(sidx, index);
  index += 4; // TODO: parse earliestPresentationTime and firstOffset
  // usually zero in our case

  var earliestPresentationTime = 0;
  var firstOffset = 0;

  if (version === 0) {
    index += 8;
  } else {
    index += 16;
  } // skip reserved


  index += 2;
  var startByte = sidx.end + firstOffset;
  var referencesCount = readUint16(sidx, index);
  index += 2;

  for (var i = 0; i < referencesCount; i++) {
    var referenceIndex = index;
    var referenceInfo = readUint32(sidx, referenceIndex);
    referenceIndex += 4;
    var referenceSize = referenceInfo & 0x7fffffff;
    var referenceType = (referenceInfo & 0x80000000) >>> 31;

    if (referenceType === 1) {
      // eslint-disable-next-line no-console
      console.warn('SIDX has hierarchical references (not supported)');
      return null;
    }

    var subsegmentDuration = readUint32(sidx, referenceIndex);
    referenceIndex += 4;
    references.push({
      referenceSize: referenceSize,
      subsegmentDuration: subsegmentDuration,
      // unscaled
      info: {
        duration: subsegmentDuration / timescale,
        start: startByte,
        end: startByte + referenceSize - 1
      }
    });
    startByte += referenceSize; // Skipping 1 bit for |startsWithSap|, 3 bits for |sapType|, and 28 bits
    // for |sapDelta|.

    referenceIndex += 4; // skip to next ref

    index = referenceIndex;
  }

  return {
    earliestPresentationTime: earliestPresentationTime,
    timescale: timescale,
    version: version,
    referencesCount: referencesCount,
    references: references,
    moovEndOffset: moovEndOffset
  };
}
/**
 * Parses an MP4 initialization segment and extracts stream type and
 * timescale values for any declared tracks. Timescale values indicate the
 * number of clock ticks per second to assume for time-based values
 * elsewhere in the MP4.
 *
 * To determine the start time of an MP4, you need two pieces of
 * information: the timescale unit and the earliest base media decode
 * time. Multiple timescales can be specified within an MP4 but the
 * base media decode time is always expressed in the timescale from
 * the media header box for the track:
 * ```
 * moov > trak > mdia > mdhd.timescale
 * moov > trak > mdia > hdlr
 * ```
 * @param initSegment {Uint8Array} the bytes of the init segment
 * @return {InitData} a hash of track type to timescale values or null if
 * the init segment is malformed.
 */

function parseInitSegment(initSegment) {
  var result = [];
  var traks = findBox(initSegment, ['moov', 'trak']);

  for (var i = 0; i < traks.length; i++) {
    var trak = traks[i];
    var tkhd = findBox(trak, ['tkhd'])[0];

    if (tkhd) {
      var version = tkhd.data[tkhd.start];

      var _index = version === 0 ? 12 : 20;

      var trackId = readUint32(tkhd, _index);
      var mdhd = findBox(trak, ['mdia', 'mdhd'])[0];

      if (mdhd) {
        version = mdhd.data[mdhd.start];
        _index = version === 0 ? 12 : 20;
        var timescale = readUint32(mdhd, _index);
        var hdlr = findBox(trak, ['mdia', 'hdlr'])[0];

        if (hdlr) {
          var hdlrType = bin2str(hdlr.data.subarray(hdlr.start + 8, hdlr.start + 12));
          var type = {
            soun: _loader_fragment__WEBPACK_IMPORTED_MODULE_1__["ElementaryStreamTypes"].AUDIO,
            vide: _loader_fragment__WEBPACK_IMPORTED_MODULE_1__["ElementaryStreamTypes"].VIDEO
          }[hdlrType];

          if (type) {
            // Parse codec details
            var stsd = findBox(trak, ['mdia', 'minf', 'stbl', 'stsd'])[0];
            var codec = void 0;

            if (stsd) {
              codec = bin2str(stsd.data.subarray(stsd.start + 12, stsd.start + 16)); // TODO: Parse codec details to be able to build MIME type.
              // stsd.start += 8;
              // const codecBox = findBox(stsd, [codec])[0];
              // if (codecBox) {
              //   TODO: Codec parsing support for avc1, mp4a, hevc, av01...
              // }
            }

            result[trackId] = {
              timescale: timescale,
              type: type
            };
            result[type] = {
              timescale: timescale,
              id: trackId,
              codec: codec
            };
          }
        }
      }
    }
  }

  var trex = findBox(initSegment, ['moov', 'mvex', 'trex']);
  trex.forEach(function (trex) {
    var trackId = readUint32(trex, 4);
    var track = result[trackId];

    if (track) {
      track.default = {
        duration: readUint32(trex, 12),
        flags: readUint32(trex, 20)
      };
    }
  });
  return result;
}
/**
 * Determine the base media decode start time, in seconds, for an MP4
 * fragment. If multiple fragments are specified, the earliest time is
 * returned.
 *
 * The base media decode time can be parsed from track fragment
 * metadata:
 * ```
 * moof > traf > tfdt.baseMediaDecodeTime
 * ```
 * It requires the timescale value from the mdhd to interpret.
 *
 * @param initData {InitData} a hash of track type to timescale values
 * @param fmp4 {Uint8Array} the bytes of the mp4 fragment
 * @return {number} the earliest base media decode start time for the
 * fragment, in seconds
 */

function getStartDTS(initData, fmp4) {
  // we need info from two children of each track fragment box
  return findBox(fmp4, ['moof', 'traf']).reduce(function (result, traf) {
    var tfdt = findBox(traf, ['tfdt'])[0];
    var version = tfdt.data[tfdt.start];
    var start = findBox(traf, ['tfhd']).reduce(function (result, tfhd) {
      // get the track id from the tfhd
      var id = readUint32(tfhd, 4);
      var track = initData[id];

      if (track) {
        var baseTime = readUint32(tfdt, 4);

        if (version === 1) {
          baseTime *= Math.pow(2, 32);
          baseTime += readUint32(tfdt, 8);
        } // assume a 90kHz clock if no timescale was specified


        var scale = track.timescale || 90e3; // convert base time to seconds

        var startTime = baseTime / scale;

        if (isFinite(startTime) && (result === null || startTime < result)) {
          return startTime;
        }
      }

      return result;
    }, null);

    if (start !== null && isFinite(start) && (result === null || start < result)) {
      return start;
    }

    return result;
  }, null) || 0;
}
/*
  For Reference:
  aligned(8) class TrackFragmentHeaderBox
           extends FullBox(‘tfhd’, 0, tf_flags){
     unsigned int(32)  track_ID;
     // all the following are optional fields
     unsigned int(64)  base_data_offset;
     unsigned int(32)  sample_description_index;
     unsigned int(32)  default_sample_duration;
     unsigned int(32)  default_sample_size;
     unsigned int(32)  default_sample_flags
  }
 */

function getDuration(data, initData) {
  var rawDuration = 0;
  var videoDuration = 0;
  var audioDuration = 0;
  var trafs = findBox(data, ['moof', 'traf']);

  for (var i = 0; i < trafs.length; i++) {
    var traf = trafs[i]; // There is only one tfhd & trun per traf
    // This is true for CMAF style content, and we should perhaps check the ftyp
    // and only look for a single trun then, but for ISOBMFF we should check
    // for multiple track runs.

    var tfhd = findBox(traf, ['tfhd'])[0]; // get the track id from the tfhd

    var id = readUint32(tfhd, 4);
    var track = initData[id];

    if (!track) {
      continue;
    }

    var trackDefault = track.default;
    var tfhdFlags = readUint32(tfhd, 0) | (trackDefault === null || trackDefault === void 0 ? void 0 : trackDefault.flags);
    var sampleDuration = trackDefault === null || trackDefault === void 0 ? void 0 : trackDefault.duration;

    if (tfhdFlags & 0x000008) {
      // 0x000008 indicates the presence of the default_sample_duration field
      if (tfhdFlags & 0x000002) {
        // 0x000002 indicates the presence of the sample_description_index field, which precedes default_sample_duration
        // If present, the default_sample_duration exists at byte offset 12
        sampleDuration = readUint32(tfhd, 12);
      } else {
        // Otherwise, the duration is at byte offset 8
        sampleDuration = readUint32(tfhd, 8);
      }
    } // assume a 90kHz clock if no timescale was specified


    var timescale = track.timescale || 90e3;
    var truns = findBox(traf, ['trun']);

    for (var j = 0; j < truns.length; j++) {
      if (sampleDuration) {
        var sampleCount = readUint32(truns[j], 4);
        rawDuration = sampleDuration * sampleCount;
      } else {
        rawDuration = computeRawDurationFromSamples(truns[j]);
      }

      if (track.type === _loader_fragment__WEBPACK_IMPORTED_MODULE_1__["ElementaryStreamTypes"].VIDEO) {
        videoDuration += rawDuration / timescale;
      } else if (track.type === _loader_fragment__WEBPACK_IMPORTED_MODULE_1__["ElementaryStreamTypes"].AUDIO) {
        audioDuration += rawDuration / timescale;
      }
    }
  }

  if (videoDuration === 0 && audioDuration === 0) {
    // If duration samples are not available in the traf use sidx subsegment_duration
    var sidx = parseSegmentIndex(data);

    if (sidx !== null && sidx !== void 0 && sidx.references) {
      return sidx.references.reduce(function (dur, ref) {
        return dur + ref.info.duration || 0;
      }, 0);
    }
  }

  if (videoDuration) {
    return videoDuration;
  }

  return audioDuration;
}
/*
  For Reference:
  aligned(8) class TrackRunBox
           extends FullBox(‘trun’, version, tr_flags) {
     unsigned int(32)  sample_count;
     // the following are optional fields
     signed int(32) data_offset;
     unsigned int(32)  first_sample_flags;
     // all fields in the following array are optional
     {
        unsigned int(32)  sample_duration;
        unsigned int(32)  sample_size;
        unsigned int(32)  sample_flags
        if (version == 0)
           { unsigned int(32)
        else
           { signed int(32)
     }[ sample_count ]
  }
 */

function computeRawDurationFromSamples(trun) {
  var flags = readUint32(trun, 0); // Flags are at offset 0, non-optional sample_count is at offset 4. Therefore we start 8 bytes in.
  // Each field is an int32, which is 4 bytes

  var offset = 8; // data-offset-present flag

  if (flags & 0x000001) {
    offset += 4;
  } // first-sample-flags-present flag


  if (flags & 0x000004) {
    offset += 4;
  }

  var duration = 0;
  var sampleCount = readUint32(trun, 4);

  for (var i = 0; i < sampleCount; i++) {
    // sample-duration-present flag
    if (flags & 0x000100) {
      var sampleDuration = readUint32(trun, offset);
      duration += sampleDuration;
      offset += 4;
    } // sample-size-present flag


    if (flags & 0x000200) {
      offset += 4;
    } // sample-flags-present flag


    if (flags & 0x000400) {
      offset += 4;
    } // sample-composition-time-offsets-present flag


    if (flags & 0x000800) {
      offset += 4;
    }
  }

  return duration;
}
function offsetStartDTS(initData, fmp4, timeOffset) {
  findBox(fmp4, ['moof', 'traf']).forEach(function (traf) {
    findBox(traf, ['tfhd']).forEach(function (tfhd) {
      // get the track id from the tfhd
      var id = readUint32(tfhd, 4);
      var track = initData[id];

      if (!track) {
        return;
      } // assume a 90kHz clock if no timescale was specified


      var timescale = track.timescale || 90e3; // get the base media decode time from the tfdt

      findBox(traf, ['tfdt']).forEach(function (tfdt) {
        var version = tfdt.data[tfdt.start];
        var baseMediaDecodeTime = readUint32(tfdt, 4);

        if (version === 0) {
          writeUint32(tfdt, 4, baseMediaDecodeTime - timeOffset * timescale);
        } else {
          baseMediaDecodeTime *= Math.pow(2, 32);
          baseMediaDecodeTime += readUint32(tfdt, 8);
          baseMediaDecodeTime -= timeOffset * timescale;
          baseMediaDecodeTime = Math.max(baseMediaDecodeTime, 0);
          var upper = Math.floor(baseMediaDecodeTime / (UINT32_MAX + 1));
          var lower = Math.floor(baseMediaDecodeTime % (UINT32_MAX + 1));
          writeUint32(tfdt, 4, upper);
          writeUint32(tfdt, 8, lower);
        }
      });
    });
  });
} // TODO: Check if the last moof+mdat pair is part of the valid range

function segmentValidRange(data) {
  var segmentedRange = {
    valid: null,
    remainder: null
  };
  var moofs = findBox(data, ['moof']);

  if (!moofs) {
    return segmentedRange;
  } else if (moofs.length < 2) {
    segmentedRange.remainder = data;
    return segmentedRange;
  }

  var last = moofs[moofs.length - 1]; // Offset by 8 bytes; findBox offsets the start by as much

  segmentedRange.valid = Object(_typed_array__WEBPACK_IMPORTED_MODULE_0__["sliceUint8"])(data, 0, last.start - 8);
  segmentedRange.remainder = Object(_typed_array__WEBPACK_IMPORTED_MODULE_0__["sliceUint8"])(data, last.start - 8);
  return segmentedRange;
}
function appendUint8Array(data1, data2) {
  var temp = new Uint8Array(data1.length + data2.length);
  temp.set(data1);
  temp.set(data2, data1.length);
  return temp;
}

/***/ }),

/***/ "./src/utils/output-filter.ts":
/*!************************************!*\
  !*** ./src/utils/output-filter.ts ***!
  \************************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "default", function() { return OutputFilter; });
var OutputFilter = /*#__PURE__*/function () {
  function OutputFilter(timelineController, trackName) {
    this.timelineController = void 0;
    this.cueRanges = [];
    this.trackName = void 0;
    this.startTime = null;
    this.endTime = null;
    this.screen = null;
    this.timelineController = timelineController;
    this.trackName = trackName;
  }

  var _proto = OutputFilter.prototype;

  _proto.dispatchCue = function dispatchCue() {
    if (this.startTime === null) {
      return;
    }

    this.timelineController.addCues(this.trackName, this.startTime, this.endTime, this.screen, this.cueRanges);
    this.startTime = null;
  };

  _proto.newCue = function newCue(startTime, endTime, screen) {
    if (this.startTime === null || this.startTime > startTime) {
      this.startTime = startTime;
    }

    this.endTime = endTime;
    this.screen = screen;
    this.timelineController.createCaptionsTrack(this.trackName);
  };

  _proto.reset = function reset() {
    this.cueRanges = [];
  };

  return OutputFilter;
}();



/***/ }),

/***/ "./src/utils/texttrack-utils.ts":
/*!**************************************!*\
  !*** ./src/utils/texttrack-utils.ts ***!
  \**************************************/
/*! exports provided: sendAddTrackEvent, addCueToTrack, clearCurrentCues, removeCuesInRange, getCuesInRange */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "sendAddTrackEvent", function() { return sendAddTrackEvent; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "addCueToTrack", function() { return addCueToTrack; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "clearCurrentCues", function() { return clearCurrentCues; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "removeCuesInRange", function() { return removeCuesInRange; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getCuesInRange", function() { return getCuesInRange; });
/* harmony import */ var _logger__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./logger */ "./src/utils/logger.ts");

function sendAddTrackEvent(track, videoEl) {
  var event;

  try {
    event = new Event('addtrack');
  } catch (err) {
    // for IE11
    event = document.createEvent('Event');
    event.initEvent('addtrack', false, false);
  }

  event.track = track;
  videoEl.dispatchEvent(event);
}
function addCueToTrack(track, cue) {
  // Sometimes there are cue overlaps on segmented vtts so the same
  // cue can appear more than once in different vtt files.
  // This avoid showing duplicated cues with same timecode and text.
  var mode = track.mode;

  if (mode === 'disabled') {
    track.mode = 'hidden';
  }

  if (track.cues && !track.cues.getCueById(cue.id)) {
    try {
      track.addCue(cue);

      if (!track.cues.getCueById(cue.id)) {
        throw new Error("addCue is failed for: " + cue);
      }
    } catch (err) {
      _logger__WEBPACK_IMPORTED_MODULE_0__["logger"].debug("[texttrack-utils]: " + err);
      var textTrackCue = new self.TextTrackCue(cue.startTime, cue.endTime, cue.text);
      textTrackCue.id = cue.id;
      track.addCue(textTrackCue);
    }
  }

  if (mode === 'disabled') {
    track.mode = mode;
  }
}
function clearCurrentCues(track) {
  // When track.mode is disabled, track.cues will be null.
  // To guarantee the removal of cues, we need to temporarily
  // change the mode to hidden
  var mode = track.mode;

  if (mode === 'disabled') {
    track.mode = 'hidden';
  }

  if (track.cues) {
    for (var i = track.cues.length; i--;) {
      track.removeCue(track.cues[i]);
    }
  }

  if (mode === 'disabled') {
    track.mode = mode;
  }
}
function removeCuesInRange(track, start, end) {
  var mode = track.mode;

  if (mode === 'disabled') {
    track.mode = 'hidden';
  }

  if (track.cues && track.cues.length > 0) {
    var cues = getCuesInRange(track.cues, start, end);

    for (var i = 0; i < cues.length; i++) {
      track.removeCue(cues[i]);
    }
  }

  if (mode === 'disabled') {
    track.mode = mode;
  }
} // Find first cue starting after given time.
// Modified version of binary search O(log(n)).

function getFirstCueIndexAfterTime(cues, time) {
  // If first cue starts after time, start there
  if (time < cues[0].startTime) {
    return 0;
  } // If the last cue ends before time there is no overlap


  var len = cues.length - 1;

  if (time > cues[len].endTime) {
    return -1;
  }

  var left = 0;
  var right = len;

  while (left <= right) {
    var mid = Math.floor((right + left) / 2);

    if (time < cues[mid].startTime) {
      right = mid - 1;
    } else if (time > cues[mid].startTime && left < len) {
      left = mid + 1;
    } else {
      // If it's not lower or higher, it must be equal.
      return mid;
    }
  } // At this point, left and right have swapped.
  // No direct match was found, left or right element must be the closest. Check which one has the smallest diff.


  return cues[left].startTime - time < time - cues[right].startTime ? left : right;
}

function getCuesInRange(cues, start, end) {
  var cuesFound = [];
  var firstCueInRange = getFirstCueIndexAfterTime(cues, start);

  if (firstCueInRange > -1) {
    for (var i = firstCueInRange, len = cues.length; i < len; i++) {
      var cue = cues[i];

      if (cue.startTime >= start && cue.endTime <= end) {
        cuesFound.push(cue);
      } else if (cue.startTime > end) {
        return cuesFound;
      }
    }
  }

  return cuesFound;
}

/***/ }),

/***/ "./src/utils/time-ranges.ts":
/*!**********************************!*\
  !*** ./src/utils/time-ranges.ts ***!
  \**********************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/**
 *  TimeRanges to string helper
 */
var TimeRanges = {
  toString: function toString(r) {
    var log = '';
    var len = r.length;

    for (var i = 0; i < len; i++) {
      log += '[' + r.start(i).toFixed(3) + ',' + r.end(i).toFixed(3) + ']';
    }

    return log;
  }
};
/* harmony default export */ __webpack_exports__["default"] = (TimeRanges);

/***/ }),

/***/ "./src/utils/timescale-conversion.ts":
/*!*******************************************!*\
  !*** ./src/utils/timescale-conversion.ts ***!
  \*******************************************/
/*! exports provided: toTimescaleFromBase, toTimescaleFromScale, toMsFromMpegTsClock, toMpegTsClockFromTimescale */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "toTimescaleFromBase", function() { return toTimescaleFromBase; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "toTimescaleFromScale", function() { return toTimescaleFromScale; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "toMsFromMpegTsClock", function() { return toMsFromMpegTsClock; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "toMpegTsClockFromTimescale", function() { return toMpegTsClockFromTimescale; });
var MPEG_TS_CLOCK_FREQ_HZ = 90000;
function toTimescaleFromBase(value, destScale, srcBase, round) {
  if (srcBase === void 0) {
    srcBase = 1;
  }

  if (round === void 0) {
    round = false;
  }

  var result = value * destScale * srcBase; // equivalent to `(value * scale) / (1 / base)`

  return round ? Math.round(result) : result;
}
function toTimescaleFromScale(value, destScale, srcScale, round) {
  if (srcScale === void 0) {
    srcScale = 1;
  }

  if (round === void 0) {
    round = false;
  }

  return toTimescaleFromBase(value, destScale, 1 / srcScale, round);
}
function toMsFromMpegTsClock(value, round) {
  if (round === void 0) {
    round = false;
  }

  return toTimescaleFromBase(value, 1000, 1 / MPEG_TS_CLOCK_FREQ_HZ, round);
}
function toMpegTsClockFromTimescale(value, srcScale) {
  if (srcScale === void 0) {
    srcScale = 1;
  }

  return toTimescaleFromBase(value, MPEG_TS_CLOCK_FREQ_HZ, 1 / srcScale);
}

/***/ }),

/***/ "./src/utils/typed-array.ts":
/*!**********************************!*\
  !*** ./src/utils/typed-array.ts ***!
  \**********************************/
/*! exports provided: sliceUint8 */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "sliceUint8", function() { return sliceUint8; });
function sliceUint8(array, start, end) {
  // @ts-expect-error This polyfills IE11 usage of Uint8Array slice.
  // It always exists in the TypeScript definition so fails, but it fails at runtime on IE11.
  return Uint8Array.prototype.slice ? array.slice(start, end) : new Uint8Array(Array.prototype.slice.call(array, start, end));
}

/***/ }),

/***/ "./src/utils/vttcue.ts":
/*!*****************************!*\
  !*** ./src/utils/vttcue.ts ***!
  \*****************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/**
 * Copyright 2013 vtt.js Contributors
 *
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/* harmony default export */ __webpack_exports__["default"] = ((function () {
  if (typeof self !== 'undefined' && self.VTTCue) {
    return self.VTTCue;
  }

  var AllowedDirections = ['', 'lr', 'rl'];
  var AllowedAlignments = ['start', 'middle', 'end', 'left', 'right'];

  function isAllowedValue(allowed, value) {
    if (typeof value !== 'string') {
      return false;
    } // necessary for assuring the generic conforms to the Array interface


    if (!Array.isArray(allowed)) {
      return false;
    } // reset the type so that the next narrowing works well


    var lcValue = value.toLowerCase(); // use the allow list to narrow the type to a specific subset of strings

    if (~allowed.indexOf(lcValue)) {
      return lcValue;
    }

    return false;
  }

  function findDirectionSetting(value) {
    return isAllowedValue(AllowedDirections, value);
  }

  function findAlignSetting(value) {
    return isAllowedValue(AllowedAlignments, value);
  }

  function extend(obj) {
    for (var _len = arguments.length, rest = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
      rest[_key - 1] = arguments[_key];
    }

    var i = 1;

    for (; i < arguments.length; i++) {
      var cobj = arguments[i];

      for (var p in cobj) {
        obj[p] = cobj[p];
      }
    }

    return obj;
  }

  function VTTCue(startTime, endTime, text) {
    var cue = this;
    var baseObj = {
      enumerable: true
    };
    /**
     * Shim implementation specific properties. These properties are not in
     * the spec.
     */
    // Lets us know when the VTTCue's data has changed in such a way that we need
    // to recompute its display state. This lets us compute its display state
    // lazily.

    cue.hasBeenReset = false;
    /**
     * VTTCue and TextTrackCue properties
     * http://dev.w3.org/html5/webvtt/#vttcue-interface
     */

    var _id = '';
    var _pauseOnExit = false;
    var _startTime = startTime;
    var _endTime = endTime;
    var _text = text;
    var _region = null;
    var _vertical = '';
    var _snapToLines = true;
    var _line = 'auto';
    var _lineAlign = 'start';
    var _position = 50;
    var _positionAlign = 'middle';
    var _size = 50;
    var _align = 'middle';
    Object.defineProperty(cue, 'id', extend({}, baseObj, {
      get: function get() {
        return _id;
      },
      set: function set(value) {
        _id = '' + value;
      }
    }));
    Object.defineProperty(cue, 'pauseOnExit', extend({}, baseObj, {
      get: function get() {
        return _pauseOnExit;
      },
      set: function set(value) {
        _pauseOnExit = !!value;
      }
    }));
    Object.defineProperty(cue, 'startTime', extend({}, baseObj, {
      get: function get() {
        return _startTime;
      },
      set: function set(value) {
        if (typeof value !== 'number') {
          throw new TypeError('Start time must be set to a number.');
        }

        _startTime = value;
        this.hasBeenReset = true;
      }
    }));
    Object.defineProperty(cue, 'endTime', extend({}, baseObj, {
      get: function get() {
        return _endTime;
      },
      set: function set(value) {
        if (typeof value !== 'number') {
          throw new TypeError('End time must be set to a number.');
        }

        _endTime = value;
        this.hasBeenReset = true;
      }
    }));
    Object.defineProperty(cue, 'text', extend({}, baseObj, {
      get: function get() {
        return _text;
      },
      set: function set(value) {
        _text = '' + value;
        this.hasBeenReset = true;
      }
    })); // todo: implement VTTRegion polyfill?

    Object.defineProperty(cue, 'region', extend({}, baseObj, {
      get: function get() {
        return _region;
      },
      set: function set(value) {
        _region = value;
        this.hasBeenReset = true;
      }
    }));
    Object.defineProperty(cue, 'vertical', extend({}, baseObj, {
      get: function get() {
        return _vertical;
      },
      set: function set(value) {
        var setting = findDirectionSetting(value); // Have to check for false because the setting an be an empty string.

        if (setting === false) {
          throw new SyntaxError('An invalid or illegal string was specified.');
        }

        _vertical = setting;
        this.hasBeenReset = true;
      }
    }));
    Object.defineProperty(cue, 'snapToLines', extend({}, baseObj, {
      get: function get() {
        return _snapToLines;
      },
      set: function set(value) {
        _snapToLines = !!value;
        this.hasBeenReset = true;
      }
    }));
    Object.defineProperty(cue, 'line', extend({}, baseObj, {
      get: function get() {
        return _line;
      },
      set: function set(value) {
        if (typeof value !== 'number' && value !== 'auto') {
          throw new SyntaxError('An invalid number or illegal string was specified.');
        }

        _line = value;
        this.hasBeenReset = true;
      }
    }));
    Object.defineProperty(cue, 'lineAlign', extend({}, baseObj, {
      get: function get() {
        return _lineAlign;
      },
      set: function set(value) {
        var setting = findAlignSetting(value);

        if (!setting) {
          throw new SyntaxError('An invalid or illegal string was specified.');
        }

        _lineAlign = setting;
        this.hasBeenReset = true;
      }
    }));
    Object.defineProperty(cue, 'position', extend({}, baseObj, {
      get: function get() {
        return _position;
      },
      set: function set(value) {
        if (value < 0 || value > 100) {
          throw new Error('Position must be between 0 and 100.');
        }

        _position = value;
        this.hasBeenReset = true;
      }
    }));
    Object.defineProperty(cue, 'positionAlign', extend({}, baseObj, {
      get: function get() {
        return _positionAlign;
      },
      set: function set(value) {
        var setting = findAlignSetting(value);

        if (!setting) {
          throw new SyntaxError('An invalid or illegal string was specified.');
        }

        _positionAlign = setting;
        this.hasBeenReset = true;
      }
    }));
    Object.defineProperty(cue, 'size', extend({}, baseObj, {
      get: function get() {
        return _size;
      },
      set: function set(value) {
        if (value < 0 || value > 100) {
          throw new Error('Size must be between 0 and 100.');
        }

        _size = value;
        this.hasBeenReset = true;
      }
    }));
    Object.defineProperty(cue, 'align', extend({}, baseObj, {
      get: function get() {
        return _align;
      },
      set: function set(value) {
        var setting = findAlignSetting(value);

        if (!setting) {
          throw new SyntaxError('An invalid or illegal string was specified.');
        }

        _align = setting;
        this.hasBeenReset = true;
      }
    }));
    /**
     * Other <track> spec defined properties
     */
    // http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#text-track-cue-display-state

    cue.displayState = undefined;
  }
  /**
   * VTTCue methods
   */


  VTTCue.prototype.getCueAsHTML = function () {
    // Assume WebVTT.convertCueToDOMTree is on the global.
    var WebVTT = self.WebVTT;
    return WebVTT.convertCueToDOMTree(self, this.text);
  }; // this is a polyfill hack


  return VTTCue;
})());

/***/ }),

/***/ "./src/utils/vttparser.ts":
/*!********************************!*\
  !*** ./src/utils/vttparser.ts ***!
  \********************************/
/*! exports provided: parseTimeStamp, fixLineBreaks, VTTParser */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "parseTimeStamp", function() { return parseTimeStamp; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fixLineBreaks", function() { return fixLineBreaks; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "VTTParser", function() { return VTTParser; });
/* harmony import */ var _vttcue__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./vttcue */ "./src/utils/vttcue.ts");
/*
 * Source: https://github.com/mozilla/vtt.js/blob/master/dist/vtt.js
 */


var StringDecoder = /*#__PURE__*/function () {
  function StringDecoder() {}

  var _proto = StringDecoder.prototype;

  // eslint-disable-next-line @typescript-eslint/no-unused-vars
  _proto.decode = function decode(data, options) {
    if (!data) {
      return '';
    }

    if (typeof data !== 'string') {
      throw new Error('Error - expected string data.');
    }

    return decodeURIComponent(encodeURIComponent(data));
  };

  return StringDecoder;
}(); // Try to parse input as a time stamp.


function parseTimeStamp(input) {
  function computeSeconds(h, m, s, f) {
    return (h | 0) * 3600 + (m | 0) * 60 + (s | 0) + parseFloat(f || 0);
  }

  var m = input.match(/^(?:(\d+):)?(\d{2}):(\d{2})(\.\d+)?/);

  if (!m) {
    return null;
  }

  if (parseFloat(m[2]) > 59) {
    // Timestamp takes the form of [hours]:[minutes].[milliseconds]
    // First position is hours as it's over 59.
    return computeSeconds(m[2], m[3], 0, m[4]);
  } // Timestamp takes the form of [hours (optional)]:[minutes]:[seconds].[milliseconds]


  return computeSeconds(m[1], m[2], m[3], m[4]);
} // A settings object holds key/value pairs and will ignore anything but the first
// assignment to a specific key.

var Settings = /*#__PURE__*/function () {
  function Settings() {
    this.values = Object.create(null);
  }

  var _proto2 = Settings.prototype;

  // Only accept the first assignment to any key.
  _proto2.set = function set(k, v) {
    if (!this.get(k) && v !== '') {
      this.values[k] = v;
    }
  } // Return the value for a key, or a default value.
  // If 'defaultKey' is passed then 'dflt' is assumed to be an object with
  // a number of possible default values as properties where 'defaultKey' is
  // the key of the property that will be chosen; otherwise it's assumed to be
  // a single value.
  ;

  _proto2.get = function get(k, dflt, defaultKey) {
    if (defaultKey) {
      return this.has(k) ? this.values[k] : dflt[defaultKey];
    }

    return this.has(k) ? this.values[k] : dflt;
  } // Check whether we have a value for a key.
  ;

  _proto2.has = function has(k) {
    return k in this.values;
  } // Accept a setting if its one of the given alternatives.
  ;

  _proto2.alt = function alt(k, v, a) {
    for (var n = 0; n < a.length; ++n) {
      if (v === a[n]) {
        this.set(k, v);
        break;
      }
    }
  } // Accept a setting if its a valid (signed) integer.
  ;

  _proto2.integer = function integer(k, v) {
    if (/^-?\d+$/.test(v)) {
      // integer
      this.set(k, parseInt(v, 10));
    }
  } // Accept a setting if its a valid percentage.
  ;

  _proto2.percent = function percent(k, v) {
    if (/^([\d]{1,3})(\.[\d]*)?%$/.test(v)) {
      var percent = parseFloat(v);

      if (percent >= 0 && percent <= 100) {
        this.set(k, percent);
        return true;
      }
    }

    return false;
  };

  return Settings;
}(); // Helper function to parse input into groups separated by 'groupDelim', and
// interpret each group as a key/value pair separated by 'keyValueDelim'.


function parseOptions(input, callback, keyValueDelim, groupDelim) {
  var groups = groupDelim ? input.split(groupDelim) : [input];

  for (var i in groups) {
    if (typeof groups[i] !== 'string') {
      continue;
    }

    var kv = groups[i].split(keyValueDelim);

    if (kv.length !== 2) {
      continue;
    }

    var _k = kv[0];
    var _v = kv[1];
    callback(_k, _v);
  }
}

var defaults = new _vttcue__WEBPACK_IMPORTED_MODULE_0__["default"](0, 0, ''); // 'middle' was changed to 'center' in the spec: https://github.com/w3c/webvtt/pull/244
//  Safari doesn't yet support this change, but FF and Chrome do.

var center = defaults.align === 'middle' ? 'middle' : 'center';

function parseCue(input, cue, regionList) {
  // Remember the original input if we need to throw an error.
  var oInput = input; // 4.1 WebVTT timestamp

  function consumeTimeStamp() {
    var ts = parseTimeStamp(input);

    if (ts === null) {
      throw new Error('Malformed timestamp: ' + oInput);
    } // Remove time stamp from input.


    input = input.replace(/^[^\sa-zA-Z-]+/, '');
    return ts;
  } // 4.4.2 WebVTT cue settings


  function consumeCueSettings(input, cue) {
    var settings = new Settings();
    parseOptions(input, function (k, v) {
      var vals;

      switch (k) {
        case 'region':
          // Find the last region we parsed with the same region id.
          for (var i = regionList.length - 1; i >= 0; i--) {
            if (regionList[i].id === v) {
              settings.set(k, regionList[i].region);
              break;
            }
          }

          break;

        case 'vertical':
          settings.alt(k, v, ['rl', 'lr']);
          break;

        case 'line':
          vals = v.split(',');
          settings.integer(k, vals[0]);

          if (settings.percent(k, vals[0])) {
            settings.set('snapToLines', false);
          }

          settings.alt(k, vals[0], ['auto']);

          if (vals.length === 2) {
            settings.alt('lineAlign', vals[1], ['start', center, 'end']);
          }

          break;

        case 'position':
          vals = v.split(',');
          settings.percent(k, vals[0]);

          if (vals.length === 2) {
            settings.alt('positionAlign', vals[1], ['start', center, 'end', 'line-left', 'line-right', 'auto']);
          }

          break;

        case 'size':
          settings.percent(k, v);
          break;

        case 'align':
          settings.alt(k, v, ['start', center, 'end', 'left', 'right']);
          break;
      }
    }, /:/, /\s/); // Apply default values for any missing fields.

    cue.region = settings.get('region', null);
    cue.vertical = settings.get('vertical', '');
    var line = settings.get('line', 'auto');

    if (line === 'auto' && defaults.line === -1) {
      // set numeric line number for Safari
      line = -1;
    }

    cue.line = line;
    cue.lineAlign = settings.get('lineAlign', 'start');
    cue.snapToLines = settings.get('snapToLines', true);
    cue.size = settings.get('size', 100);
    cue.align = settings.get('align', center);
    var position = settings.get('position', 'auto');

    if (position === 'auto' && defaults.position === 50) {
      // set numeric position for Safari
      position = cue.align === 'start' || cue.align === 'left' ? 0 : cue.align === 'end' || cue.align === 'right' ? 100 : 50;
    }

    cue.position = position;
  }

  function skipWhitespace() {
    input = input.replace(/^\s+/, '');
  } // 4.1 WebVTT cue timings.


  skipWhitespace();
  cue.startTime = consumeTimeStamp(); // (1) collect cue start time

  skipWhitespace();

  if (input.substr(0, 3) !== '-->') {
    // (3) next characters must match '-->'
    throw new Error("Malformed time stamp (time stamps must be separated by '-->'): " + oInput);
  }

  input = input.substr(3);
  skipWhitespace();
  cue.endTime = consumeTimeStamp(); // (5) collect cue end time
  // 4.1 WebVTT cue settings list.

  skipWhitespace();
  consumeCueSettings(input, cue);
}

function fixLineBreaks(input) {
  return input.replace(/<br(?: \/)?>/gi, '\n');
}
var VTTParser = /*#__PURE__*/function () {
  function VTTParser() {
    this.state = 'INITIAL';
    this.buffer = '';
    this.decoder = new StringDecoder();
    this.regionList = [];
    this.cue = null;
    this.oncue = void 0;
    this.onparsingerror = void 0;
    this.onflush = void 0;
  }

  var _proto3 = VTTParser.prototype;

  _proto3.parse = function parse(data) {
    var _this = this; // If there is no data then we won't decode it, but will just try to parse
    // whatever is in buffer already. This may occur in circumstances, for
    // example when flush() is called.


    if (data) {
      // Try to decode the data that we received.
      _this.buffer += _this.decoder.decode(data, {
        stream: true
      });
    }

    function collectNextLine() {
      var buffer = _this.buffer;
      var pos = 0;
      buffer = fixLineBreaks(buffer);

      while (pos < buffer.length && buffer[pos] !== '\r' && buffer[pos] !== '\n') {
        ++pos;
      }

      var line = buffer.substr(0, pos); // Advance the buffer early in case we fail below.

      if (buffer[pos] === '\r') {
        ++pos;
      }

      if (buffer[pos] === '\n') {
        ++pos;
      }

      _this.buffer = buffer.substr(pos);
      return line;
    } // 3.2 WebVTT metadata header syntax


    function parseHeader(input) {
      parseOptions(input, function (k, v) {// switch (k) {
        // case 'region':
        // 3.3 WebVTT region metadata header syntax
        // console.log('parse region', v);
        // parseRegion(v);
        // break;
        // }
      }, /:/);
    } // 5.1 WebVTT file parsing.


    try {
      var line = '';

      if (_this.state === 'INITIAL') {
        // We can't start parsing until we have the first line.
        if (!/\r\n|\n/.test(_this.buffer)) {
          return this;
        }

        line = collectNextLine(); // strip of UTF-8 BOM if any
        // https://en.wikipedia.org/wiki/Byte_order_mark#UTF-8

        var m = line.match(/^()?WEBVTT([ \t].*)?$/);

        if (!m || !m[0]) {
          throw new Error('Malformed WebVTT signature.');
        }

        _this.state = 'HEADER';
      }

      var alreadyCollectedLine = false;

      while (_this.buffer) {
        // We can't parse a line until we have the full line.
        if (!/\r\n|\n/.test(_this.buffer)) {
          return this;
        }

        if (!alreadyCollectedLine) {
          line = collectNextLine();
        } else {
          alreadyCollectedLine = false;
        }

        switch (_this.state) {
          case 'HEADER':
            // 13-18 - Allow a header (metadata) under the WEBVTT line.
            if (/:/.test(line)) {
              parseHeader(line);
            } else if (!line) {
              // An empty line terminates the header and starts the body (cues).
              _this.state = 'ID';
            }

            continue;

          case 'NOTE':
            // Ignore NOTE blocks.
            if (!line) {
              _this.state = 'ID';
            }

            continue;

          case 'ID':
            // Check for the start of NOTE blocks.
            if (/^NOTE($|[ \t])/.test(line)) {
              _this.state = 'NOTE';
              break;
            } // 19-29 - Allow any number of line terminators, then initialize new cue values.


            if (!line) {
              continue;
            }

            _this.cue = new _vttcue__WEBPACK_IMPORTED_MODULE_0__["default"](0, 0, '');
            _this.state = 'CUE'; // 30-39 - Check if self line contains an optional identifier or timing data.

            if (line.indexOf('-->') === -1) {
              _this.cue.id = line;
              continue;
            }

          // Process line as start of a cue.

          /* falls through */

          case 'CUE':
            // 40 - Collect cue timings and settings.
            if (!_this.cue) {
              _this.state = 'BADCUE';
              continue;
            }

            try {
              parseCue(line, _this.cue, _this.regionList);
            } catch (e) {
              // In case of an error ignore rest of the cue.
              _this.cue = null;
              _this.state = 'BADCUE';
              continue;
            }

            _this.state = 'CUETEXT';
            continue;

          case 'CUETEXT':
            {
              var hasSubstring = line.indexOf('-->') !== -1; // 34 - If we have an empty line then report the cue.
              // 35 - If we have the special substring '-->' then report the cue,
              // but do not collect the line as we need to process the current
              // one as a new cue.

              if (!line || hasSubstring && (alreadyCollectedLine = true)) {
                // We are done parsing self cue.
                if (_this.oncue && _this.cue) {
                  _this.oncue(_this.cue);
                }

                _this.cue = null;
                _this.state = 'ID';
                continue;
              }

              if (_this.cue === null) {
                continue;
              }

              if (_this.cue.text) {
                _this.cue.text += '\n';
              }

              _this.cue.text += line;
            }
            continue;

          case 'BADCUE':
            // 54-62 - Collect and discard the remaining cue.
            if (!line) {
              _this.state = 'ID';
            }

        }
      }
    } catch (e) {
      // If we are currently parsing a cue, report what we have.
      if (_this.state === 'CUETEXT' && _this.cue && _this.oncue) {
        _this.oncue(_this.cue);
      }

      _this.cue = null; // Enter BADWEBVTT state if header was not parsed correctly otherwise
      // another exception occurred so enter BADCUE state.

      _this.state = _this.state === 'INITIAL' ? 'BADWEBVTT' : 'BADCUE';
    }

    return this;
  };

  _proto3.flush = function flush() {
    var _this = this;

    try {
      // Finish decoding the stream.
      // _this.buffer += _this.decoder.decode();
      // Synthesize the end of the current cue or region.
      if (_this.cue || _this.state === 'HEADER') {
        _this.buffer += '\n\n';

        _this.parse();
      } // If we've flushed, parsed, and we're still on the INITIAL state then
      // that means we don't have enough of the stream to parse the first
      // line.


      if (_this.state === 'INITIAL' || _this.state === 'BADWEBVTT') {
        throw new Error('Malformed WebVTT signature.');
      }
    } catch (e) {
      if (_this.onparsingerror) {
        _this.onparsingerror(e);
      }
    }

    if (_this.onflush) {
      _this.onflush();
    }

    return this;
  };

  return VTTParser;
}();

/***/ }),

/***/ "./src/utils/webvtt-parser.ts":
/*!************************************!*\
  !*** ./src/utils/webvtt-parser.ts ***!
  \************************************/
/*! exports provided: generateCueId, parseWebVTT */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "generateCueId", function() { return generateCueId; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "parseWebVTT", function() { return parseWebVTT; });
/* harmony import */ var _home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./src/polyfills/number */ "./src/polyfills/number.ts");
/* harmony import */ var _vttparser__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./vttparser */ "./src/utils/vttparser.ts");
/* harmony import */ var _demux_id3__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../demux/id3 */ "./src/demux/id3.ts");
/* harmony import */ var _timescale_conversion__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./timescale-conversion */ "./src/utils/timescale-conversion.ts");
/* harmony import */ var _remux_mp4_remuxer__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../remux/mp4-remuxer */ "./src/remux/mp4-remuxer.ts");








var LINEBREAKS = /\r\n|\n\r|\n|\r/g; // String.prototype.startsWith is not supported in IE11

var startsWith = function startsWith(inputString, searchString, position) {
  if (position === void 0) {
    position = 0;
  }

  return inputString.substr(position, searchString.length) === searchString;
};

var cueString2millis = function cueString2millis(timeString) {
  var ts = parseInt(timeString.substr(-3));
  var secs = parseInt(timeString.substr(-6, 2));
  var mins = parseInt(timeString.substr(-9, 2));
  var hours = timeString.length > 9 ? parseInt(timeString.substr(0, timeString.indexOf(':'))) : 0;

  if (!Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(ts) || !Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(secs) || !Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(mins) || !Object(_home_runner_work_hls_js_hls_js_src_polyfills_number__WEBPACK_IMPORTED_MODULE_0__["isFiniteNumber"])(hours)) {
    throw Error("Malformed X-TIMESTAMP-MAP: Local:" + timeString);
  }

  ts += 1000 * secs;
  ts += 60 * 1000 * mins;
  ts += 60 * 60 * 1000 * hours;
  return ts;
}; // From https://github.com/darkskyapp/string-hash


var hash = function hash(text) {
  var hash = 5381;
  var i = text.length;

  while (i) {
    hash = hash * 33 ^ text.charCodeAt(--i);
  }

  return (hash >>> 0).toString();
}; // Create a unique hash id for a cue based on start/end times and text.
// This helps timeline-controller to avoid showing repeated captions.


function generateCueId(startTime, endTime, text) {
  return hash(startTime.toString()) + hash(endTime.toString()) + hash(text);
}

var calculateOffset = function calculateOffset(vttCCs, cc, presentationTime) {
  var currCC = vttCCs[cc];
  var prevCC = vttCCs[currCC.prevCC]; // This is the first discontinuity or cues have been processed since the last discontinuity
  // Offset = current discontinuity time

  if (!prevCC || !prevCC.new && currCC.new) {
    vttCCs.ccOffset = vttCCs.presentationOffset = currCC.start;
    currCC.new = false;
    return;
  } // There have been discontinuities since cues were last parsed.
  // Offset = time elapsed


  while ((_prevCC = prevCC) !== null && _prevCC !== void 0 && _prevCC.new) {
    var _prevCC;

    vttCCs.ccOffset += currCC.start - prevCC.start;
    currCC.new = false;
    currCC = prevCC;
    prevCC = vttCCs[currCC.prevCC];
  }

  vttCCs.presentationOffset = presentationTime;
};

function parseWebVTT(vttByteArray, initPTS, timescale, vttCCs, cc, timeOffset, callBack, errorCallBack) {
  var parser = new _vttparser__WEBPACK_IMPORTED_MODULE_1__["VTTParser"](); // Convert byteArray into string, replacing any somewhat exotic linefeeds with "\n", then split on that character.
  // Uint8Array.prototype.reduce is not implemented in IE11

  var vttLines = Object(_demux_id3__WEBPACK_IMPORTED_MODULE_2__["utf8ArrayToStr"])(new Uint8Array(vttByteArray)).trim().replace(LINEBREAKS, '\n').split('\n');
  var cues = [];
  var initPTS90Hz = Object(_timescale_conversion__WEBPACK_IMPORTED_MODULE_3__["toMpegTsClockFromTimescale"])(initPTS, timescale);
  var cueTime = '00:00.000';
  var timestampMapMPEGTS = 0;
  var timestampMapLOCAL = 0;
  var parsingError;
  var inHeader = true;
  var timestampMap = false;

  parser.oncue = function (cue) {
    // Adjust cue timing; clamp cues to start no earlier than - and drop cues that don't end after - 0 on timeline.
    var currCC = vttCCs[cc];
    var cueOffset = vttCCs.ccOffset; // Calculate subtitle PTS offset

    var webVttMpegTsMapOffset = (timestampMapMPEGTS - initPTS90Hz) / 90000; // Update offsets for new discontinuities

    if (currCC !== null && currCC !== void 0 && currCC.new) {
      if (timestampMapLOCAL !== undefined) {
        // When local time is provided, offset = discontinuity start time - local time
        cueOffset = vttCCs.ccOffset = currCC.start;
      } else {
        calculateOffset(vttCCs, cc, webVttMpegTsMapOffset);
      }
    }

    if (webVttMpegTsMapOffset) {
      // If we have MPEGTS, offset = presentation time + discontinuity offset
      cueOffset = webVttMpegTsMapOffset - vttCCs.presentationOffset;
    }

    if (timestampMap) {
      var duration = cue.endTime - cue.startTime;
      var startTime = Object(_remux_mp4_remuxer__WEBPACK_IMPORTED_MODULE_4__["normalizePts"])((cue.startTime + cueOffset - timestampMapLOCAL) * 90000, timeOffset * 90000) / 90000;
      cue.startTime = startTime;
      cue.endTime = startTime + duration;
    } //trim trailing webvtt block whitespaces


    var text = cue.text.trim(); // Fix encoding of special characters

    cue.text = decodeURIComponent(encodeURIComponent(text)); // If the cue was not assigned an id from the VTT file (line above the content), create one.

    if (!cue.id) {
      cue.id = generateCueId(cue.startTime, cue.endTime, text);
    }

    if (cue.endTime > 0) {
      cues.push(cue);
    }
  };

  parser.onparsingerror = function (error) {
    parsingError = error;
  };

  parser.onflush = function () {
    if (parsingError) {
      errorCallBack(parsingError);
      return;
    }

    callBack(cues);
  }; // Go through contents line by line.


  vttLines.forEach(function (line) {
    if (inHeader) {
      // Look for X-TIMESTAMP-MAP in header.
      if (startsWith(line, 'X-TIMESTAMP-MAP=')) {
        // Once found, no more are allowed anyway, so stop searching.
        inHeader = false;
        timestampMap = true; // Extract LOCAL and MPEGTS.

        line.substr(16).split(',').forEach(function (timestamp) {
          if (startsWith(timestamp, 'LOCAL:')) {
            cueTime = timestamp.substr(6);
          } else if (startsWith(timestamp, 'MPEGTS:')) {
            timestampMapMPEGTS = parseInt(timestamp.substr(7));
          }
        });

        try {
          // Convert cue time to seconds
          timestampMapLOCAL = cueString2millis(cueTime) / 1000;
        } catch (error) {
          timestampMap = false;
          parsingError = error;
        } // Return without parsing X-TIMESTAMP-MAP line.


        return;
      } else if (line === '') {
        inHeader = false;
      }
    } // Parse line by default.


    parser.parse(line + '\n');
  });
  parser.flush();
}

/***/ }),

/***/ "./src/utils/xhr-loader.ts":
/*!*********************************!*\
  !*** ./src/utils/xhr-loader.ts ***!
  \*********************************/
/*! exports provided: default */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../utils/logger */ "./src/utils/logger.ts");
/* harmony import */ var _loader_load_stats__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../loader/load-stats */ "./src/loader/load-stats.ts");


var AGE_HEADER_LINE_REGEX = /^age:\s*[\d.]+\s*$/m;

var XhrLoader = /*#__PURE__*/function () {
  function XhrLoader(config
  /* HlsConfig */
  ) {
    this.xhrSetup = void 0;
    this.requestTimeout = void 0;
    this.retryTimeout = void 0;
    this.retryDelay = void 0;
    this.config = null;
    this.callbacks = null;
    this.context = void 0;
    this.loader = null;
    this.stats = void 0;
    this.xhrSetup = config ? config.xhrSetup : null;
    this.stats = new _loader_load_stats__WEBPACK_IMPORTED_MODULE_1__["LoadStats"]();
    this.retryDelay = 0;
  }

  var _proto = XhrLoader.prototype;

  _proto.destroy = function destroy() {
    this.callbacks = null;
    this.abortInternal();
    this.loader = null;
    this.config = null;
  };

  _proto.abortInternal = function abortInternal() {
    var loader = this.loader;
    self.clearTimeout(this.requestTimeout);
    self.clearTimeout(this.retryTimeout);

    if (loader) {
      loader.onreadystatechange = null;
      loader.onprogress = null;

      if (loader.readyState !== 4) {
        this.stats.aborted = true;
        loader.abort();
      }
    }
  };

  _proto.abort = function abort() {
    var _this$callbacks;

    this.abortInternal();

    if ((_this$callbacks = this.callbacks) !== null && _this$callbacks !== void 0 && _this$callbacks.onAbort) {
      this.callbacks.onAbort(this.stats, this.context, this.loader);
    }
  };

  _proto.load = function load(context, config, callbacks) {
    if (this.stats.loading.start) {
      throw new Error('Loader can only be used once.');
    }

    this.stats.loading.start = self.performance.now();
    this.context = context;
    this.config = config;
    this.callbacks = callbacks;
    this.retryDelay = config.retryDelay;
    this.loadInternal();
  };

  _proto.loadInternal = function loadInternal() {
    var config = this.config,
        context = this.context;

    if (!config) {
      return;
    }

    var xhr = this.loader = new self.XMLHttpRequest();
    var stats = this.stats;
    stats.loading.first = 0;
    stats.loaded = 0;
    var xhrSetup = this.xhrSetup;

    try {
      if (xhrSetup) {
        try {
          xhrSetup(xhr, context.url);
        } catch (e) {
          // fix xhrSetup: (xhr, url) => {xhr.setRequestHeader("Content-Language", "test");}
          // not working, as xhr.setRequestHeader expects xhr.readyState === OPEN
          xhr.open('GET', context.url, true);
          xhrSetup(xhr, context.url);
        }
      }

      if (!xhr.readyState) {
        xhr.open('GET', context.url, true);
      }

      var headers = this.context.headers;

      if (headers) {
        for (var header in headers) {
          xhr.setRequestHeader(header, headers[header]);
        }
      }
    } catch (e) {
      // IE11 throws an exception on xhr.open if attempting to access an HTTP resource over HTTPS
      this.callbacks.onError({
        code: xhr.status,
        text: e.message
      }, context, xhr);
      return;
    }

    if (context.rangeEnd) {
      xhr.setRequestHeader('Range', 'bytes=' + context.rangeStart + '-' + (context.rangeEnd - 1));
    }

    xhr.onreadystatechange = this.readystatechange.bind(this);
    xhr.onprogress = this.loadprogress.bind(this);
    xhr.responseType = context.responseType; // setup timeout before we perform request

    self.clearTimeout(this.requestTimeout);
    this.requestTimeout = self.setTimeout(this.loadtimeout.bind(this), config.timeout);
    xhr.send();
  };

  _proto.readystatechange = function readystatechange() {
    var context = this.context,
        xhr = this.loader,
        stats = this.stats;

    if (!context || !xhr) {
      return;
    }

    var readyState = xhr.readyState;
    var config = this.config; // don't proceed if xhr has been aborted

    if (stats.aborted) {
      return;
    } // >= HEADERS_RECEIVED


    if (readyState >= 2) {
      // clear xhr timeout and rearm it if readyState less than 4
      self.clearTimeout(this.requestTimeout);

      if (stats.loading.first === 0) {
        stats.loading.first = Math.max(self.performance.now(), stats.loading.start);
      }

      if (readyState === 4) {
        xhr.onreadystatechange = null;
        xhr.onprogress = null;
        var status = xhr.status; // http status between 200 to 299 are all successful

        if (status >= 200 && status < 300) {
          stats.loading.end = Math.max(self.performance.now(), stats.loading.first);
          var data;
          var len;

          if (context.responseType === 'arraybuffer') {
            data = xhr.response;
            len = data.byteLength;
          } else {
            data = xhr.responseText;
            len = data.length;
          }

          stats.loaded = stats.total = len;

          if (!this.callbacks) {
            return;
          }

          var onProgress = this.callbacks.onProgress;

          if (onProgress) {
            onProgress(stats, context, data, xhr);
          }

          if (!this.callbacks) {
            return;
          }

          var response = {
            url: xhr.responseURL,
            data: data
          };
          this.callbacks.onSuccess(response, stats, context, xhr);
        } else {
          // if max nb of retries reached or if http status between 400 and 499 (such error cannot be recovered, retrying is useless), return error
          if (stats.retry >= config.maxRetry || status >= 400 && status < 499) {
            _utils_logger__WEBPACK_IMPORTED_MODULE_0__["logger"].error(status + " while loading " + context.url);
            this.callbacks.onError({
              code: status,
              text: xhr.statusText
            }, context, xhr);
          } else {
            // retry
            _utils_logger__WEBPACK_IMPORTED_MODULE_0__["logger"].warn(status + " while loading " + context.url + ", retrying in " + this.retryDelay + "..."); // abort and reset internal state

            this.abortInternal();
            this.loader = null; // schedule retry

            self.clearTimeout(this.retryTimeout);
            this.retryTimeout = self.setTimeout(this.loadInternal.bind(this), this.retryDelay); // set exponential backoff

            this.retryDelay = Math.min(2 * this.retryDelay, config.maxRetryDelay);
            stats.retry++;
          }
        }
      } else {
        // readyState >= 2 AND readyState !==4 (readyState = HEADERS_RECEIVED || LOADING) rearm timeout as xhr not finished yet
        self.clearTimeout(this.requestTimeout);
        this.requestTimeout = self.setTimeout(this.loadtimeout.bind(this), config.timeout);
      }
    }
  };

  _proto.loadtimeout = function loadtimeout() {
    _utils_logger__WEBPACK_IMPORTED_MODULE_0__["logger"].warn("timeout while loading " + this.context.url);
    var callbacks = this.callbacks;

    if (callbacks) {
      this.abortInternal();
      callbacks.onTimeout(this.stats, this.context, this.loader);
    }
  };

  _proto.loadprogress = function loadprogress(event) {
    var stats = this.stats;
    stats.loaded = event.loaded;

    if (event.lengthComputable) {
      stats.total = event.total;
    }
  };

  _proto.getCacheAge = function getCacheAge() {
    var result = null;

    if (this.loader && AGE_HEADER_LINE_REGEX.test(this.loader.getAllResponseHeaders())) {
      var ageHeader = this.loader.getResponseHeader('age');
      result = ageHeader ? parseFloat(ageHeader) : null;
    }

    return result;
  };

  return XhrLoader;
}();

/* harmony default export */ __webpack_exports__["default"] = (XhrLoader);

/***/ })

/******/ })["default"];
});
//# sourceMappingURL=hls.js.map

/***/ }),

/***/ "vHTk":
/*!******************************************************!*\
  !*** ./src/components/PreviewAll/index.less?modules ***!
  \******************************************************/
/*! no static exports found */
/*! exports used: default */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

// extracted by mini-css-extract-plugin
module.exports = {"wrp":"wrp___z2l1F","bgBlack":"bgBlack___3ezfX","monaco":"monaco___1ypjT","darkBlue":"darkBlue___2ViJc","close":"close___3q-z4","embed":"embed___3dQqc"};

/***/ }),

/***/ "xvzu":
/*!*************************************************************************************!*\
  !*** ./src/pages/User/Detail/Topics/Exercise/Detail/components/editor.less?modules ***!
  \*************************************************************************************/
/*! no static exports found */
/*! exports used: default */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

// extracted by mini-css-extract-plugin
module.exports = {"flex_box_center":"flex_box_center___11Yx1","flex_space_between":"flex_space_between___3B8wg","flex_box_vertical_center":"flex_box_vertical_center___1cm8r","flex_box_center_end":"flex_box_center_end___2h7Wz","flex_box_column":"flex_box_column___1vJbd","wrap":"wrap___30mNN","modal":"modal___39YWi","titleWrap":"titleWrap___25lJO","required":"required___2_KP9","title":"title___dFjtB","colorGray":"colorGray___3RoHj","choiceWrap":"choiceWrap___14CFD","answer":"answer___10oFr","activeAnswer":"activeAnswer___S76uT","deleteIcon":"deleteIcon___kKaJg","addIcon":"addIcon___3w3u_","editorWrap":"editorWrap___3DrnO","htmlWrap":"htmlWrap___1tGnP","radio":"radio___24YhJ","color333":"color333___1O71o","color999":"color999___xHfER","questionType":"questionType___22Z7J","questionChoices":"questionChoices____Unas"};

/***/ })

}]);