diff --git a/app/controllers/messages_controller.rb b/app/controllers/messages_controller.rb index aae33e52a..f9b5b7d32 100644 --- a/app/controllers/messages_controller.rb +++ b/app/controllers/messages_controller.rb @@ -162,7 +162,7 @@ class MessagesController < ApplicationController @reply.subject = "RE: #{@topic.subject}" unless params[:reply][:subject] @topic.children << @reply user_activity = UserActivity.where("act_type='Message' and act_id =#{@topic.id}").first - user_activity.updated_at = @reply.created_on + user_activity.updated_at = Time.now user_activity.save #@topic.update_attribute(:updated_on, Time.now) if !@reply.new_record? diff --git a/app/views/homework_common/index.html.erb b/app/views/homework_common/index.html.erb index 693ddba65..2e680d6ea 100644 --- a/app/views/homework_common/index.html.erb +++ b/app/views/homework_common/index.html.erb @@ -78,11 +78,7 @@
开发语言：
- <% if homework.homework_detail_programing.language.to_i == 1%> - C - <% elsif homework.homework_detail_programing.language.to_i == 2%> - C++ - <% end%> + <%= homework.language_name%>
diff --git a/app/views/users/_activity_new_score_index.html.erb b/app/views/users/_activity_new_score_index.html.erb index 8140fd756..605219476 100644 --- a/app/views/users/_activity_new_score_index.html.erb +++ b/app/views/users/_activity_new_score_index.html.erb @@ -1,4 +1,3 @@ -
    <%= l('userscore.skill.tramples')%> * (-2) = <%= option_num.tread %> * (-2) = <%= option_num.tread * (-2) %>
    <%= l('userscore.skill.like.level1')%> * 4 = <%= option_num.praise_by_one %> * 4 = <%= option_num.praise_by_one * 4 %>
    <%= l('userscore.skill.like.level2')%> * 6 = <%= option_num.praise_by_two %> * 6 = <%= option_num.praise_by_two * 6 %>
diff --git a/app/views/users/_course_homework.html.erb b/app/views/users/_course_homework.html.erb index 5ba83401c..366473b52 100644 --- a/app/views/users/_course_homework.html.erb +++ b/app/views/users/_course_homework.html.erb @@ -36,11 +36,7 @@ <% if activity.homework_type == 2%>
语言： - <% if activity.homework_detail_programing.language.to_i == 1%> - C - <% elsif activity.homework_detail_programing.language.to_i == 2%> - C++ - <% end%> + <%= activity.language_name%>
<% end %> diff --git a/app/views/users/_user_homework_list.html.erb b/app/views/users/_user_homework_list.html.erb index e7addad97..6bc03e33d 100644 --- a/app/views/users/_user_homework_list.html.erb +++ b/app/views/users/_user_homework_list.html.erb @@ -34,11 +34,7 @@ <% if homework_common.homework_type == 2%>
语言： - <% if homework_common.homework_detail_programing.language.to_i == 1%> - C - <% elsif homework_common.homework_detail_programing.language.to_i == 2%> - C++ - <% end%> + <%= homework_common.language_name%>
<% end %>
diff --git a/app/views/users/new_user_commit_homework.html.erb b/app/views/users/new_user_commit_homework.html.erb index 19a971ece..c8998fd55 100644 --- a/app/views/users/new_user_commit_homework.html.erb +++ b/app/views/users/new_user_commit_homework.html.erb @@ -1,6 +1,8 @@ <% content_for :header_tags do %> - <%= javascript_include_tag "/assets/kindeditor/kindeditor",'/assets/kindeditor/pasteimg' %> + <%= javascript_include_tag "/assets/codemirror/codemirror_python_ruby_c" %> <%= javascript_include_tag 'homework','baiduTemplate' %> + <%= stylesheet_link_tag "/assets/codemirror/codemirror" %> + <% end %> @@ -75,6 +77,7 @@
请使用 <%= @homework.language_name %> 语言编写 + style="display-hidden" id="data-language">
<%= f.text_area :name, id: 'program-title', class:"InputBox W700", placeholder:"请概括你的代码的功能" %> diff --git a/app/views/users/user_system_messages.html.erb b/app/views/users/user_system_messages.html.erb index 3b8bd9fb6..899cd7a8f 100644 --- a/app/views/users/user_system_messages.html.erb +++ b/app/views/users/user_system_messages.html.erb @@ -43,9 +43,11 @@ <%= system_message.subject.nil? ? "系统消息" : system_message.subject %>
-

- <%= system_message.content.nil? ? system_message.description.html_safe : system_message.content.html_safe %> -

+
+

+ <%= system_message.content.nil? ? system_message.description.html_safe : system_message.content.html_safe %> +

+

截止时间：<%= format_time(system_message.created_at) %>

diff --git a/config/configuration.yml b/config/configuration.yml index 87a54a976..ef39f6493 100644 --- a/config/configuration.yml +++ b/config/configuration.yml @@ -103,7 +103,7 @@ default: # autologin_cookie_name: the name of the cookie (default: autologin) # autologin_cookie_path: the cookie path (default: /) # autologin_cookie_secure: true sets the cookie secure flag (default: false) - autologin_cookie_name: + autologin_cookie_name: "autologin_trustie" autologin_cookie_path: autologin_cookie_secure: @@ -197,11 +197,17 @@ default: #max_concurrent_ajax_uploads: 2 #pic_types: "bmp,jpeg,jpg,png,gif" + repository_root_path: '/tmp/htdocs' + judge_server: 'http://judge.trustie.net/' + # specific configuration options for production environment # that overrides the default ones production: # CJK support rmagick_font_path: /usr/share/fonts/ipa-mincho/ipam.ttf + judge_server: 'http://192.168.80.21:8080/' + repository_root_path: '/home/pdl/redmine-2.3.2-0/apache2/htdocs' + cookie_domain: ".trustie.net" email_delivery: delivery_method: :smtp smtp_settings: diff --git a/db/schema.rb b/db/schema.rb index 43357f44f..1c6760345 100644 --- a/db/schema.rb +++ b/db/schema.rb @@ -11,7 +11,7 @@ # # It's strongly recommended to check this file into your version control system. -ActiveRecord::Schema.define(:version => 20150918005722) do +ActiveRecord::Schema.define(:version => 20150918134804) do create_table "activities", :force => true do |t| t.integer "act_id", :null => false @@ -572,6 +572,7 @@ ActiveRecord::Schema.define(:version => 20150918005722) do t.integer "viewed" t.datetime "created_at", :null => false t.datetime "updated_at", :null => false + t.string "secret_key" end create_table "forums", :force => true do |t| @@ -683,6 +684,7 @@ ActiveRecord::Schema.define(:version => 20150918005722) do t.integer "user_id" t.datetime "created_at", :null => false t.datetime "updated_at", :null => false + t.string "mail" end create_table "issue_categories", :force => true do |t| @@ -1304,9 +1306,9 @@ ActiveRecord::Schema.define(:version => 20150918005722) do create_table "student_work_tests", :force => true do |t| t.integer "student_work_id" - t.integer "status" - t.datetime "created_at", :null => false - t.datetime "updated_at", :null => false + t.datetime "created_at", :null => false + t.datetime "updated_at", :null => false + t.integer "status", :default => 9 t.text "results" t.text "src" end @@ -1359,8 +1361,10 @@ ActiveRecord::Schema.define(:version => 20150918005722) do create_table "system_messages", :force => true do |t| t.integer "user_id" t.string "content" - t.datetime "created_at", :null => false - t.datetime "updated_at", :null => false + t.datetime "created_at", :null => false + t.datetime "updated_at", :null => false + t.text "description" + t.string "subject" end create_table "taggings", :force => true do |t| @@ -1552,7 +1556,6 @@ ActiveRecord::Schema.define(:version => 20150918005722) do t.string "identity_url" t.string "mail_notification", :default => "", :null => false t.string "salt", :limit => 64 - t.integer "gid" end add_index "users", ["auth_source_id"], :name => "index_users_on_auth_source_id" diff --git a/public/assets/codemirror/clike.js b/public/assets/codemirror/clike.js new file mode 100644 index 000000000..e13b79c14 --- /dev/null +++ b/public/assets/codemirror/clike.js @@ -0,0 +1,604 @@ +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: http://codemirror.net/LICENSE + +(function(mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + mod(require("../../lib/codemirror")); + else if (typeof define == "function" && define.amd) // AMD + define(["../../lib/codemirror"], mod); + else // Plain browser env + mod(CodeMirror); +})(function(CodeMirror) { +"use strict"; + +CodeMirror.defineMode("clike", function(config, parserConfig) { + var indentUnit = config.indentUnit, + statementIndentUnit = parserConfig.statementIndentUnit || indentUnit, + dontAlignCalls = parserConfig.dontAlignCalls, + keywords = parserConfig.keywords || {}, + types = parserConfig.types || {}, + builtin = parserConfig.builtin || {}, + blockKeywords = parserConfig.blockKeywords || {}, + defKeywords = parserConfig.defKeywords || {}, + atoms = parserConfig.atoms || {}, + hooks = parserConfig.hooks || {}, + multiLineStrings = parserConfig.multiLineStrings, + indentStatements = parserConfig.indentStatements !== false, + indentSwitch = parserConfig.indentSwitch !== false, + namespaceSeparator = parserConfig.namespaceSeparator; + var isOperatorChar = /[+\-*&%=<>!?|\/]/; + + var curPunc, isDefKeyword; + + function tokenBase(stream, state) { + var ch = stream.next(); + if (hooks[ch]) { + var result = hooks[ch](stream, state); + if (result !== false) return result; + } + if (ch == '"' || ch == "'") { + state.tokenize = tokenString(ch); + return state.tokenize(stream, state); + } + if (/[\[\]{}\(\),;\:\.]/.test(ch)) { + curPunc = ch; + return null; + } + if (/\d/.test(ch)) { + stream.eatWhile(/[\w\.]/); + return "number"; + } + if (ch == "/") { + if (stream.eat("*")) { + state.tokenize = tokenComment; + return tokenComment(stream, state); + } + if (stream.eat("/")) { + stream.skipToEnd(); + return "comment"; + } + } + if (isOperatorChar.test(ch)) { + stream.eatWhile(isOperatorChar); + return "operator"; + } + stream.eatWhile(/[\w\$_\xa1-\uffff]/); + if (namespaceSeparator) while (stream.match(namespaceSeparator)) + stream.eatWhile(/[\w\$_\xa1-\uffff]/); + + var cur = stream.current(); + if (keywords.propertyIsEnumerable(cur)) { + if (blockKeywords.propertyIsEnumerable(cur)) curPunc = "newstatement"; + if (defKeywords.propertyIsEnumerable(cur)) isDefKeyword = true; + return "keyword"; + } + if (types.propertyIsEnumerable(cur)) return "variable-3"; + if (builtin.propertyIsEnumerable(cur)) { + if (blockKeywords.propertyIsEnumerable(cur)) curPunc = "newstatement"; + return "builtin"; + } + if (atoms.propertyIsEnumerable(cur)) return "atom"; + return "variable"; + } + + function tokenString(quote) { + return function(stream, state) { + var escaped = false, next, end = false; + while ((next = stream.next()) != null) { + if (next == quote && !escaped) {end = true; break;} + escaped = !escaped && next == "\\"; + } + if (end || !(escaped || multiLineStrings)) + state.tokenize = null; + return "string"; + }; + } + + function tokenComment(stream, state) { + var maybeEnd = false, ch; + while (ch = stream.next()) { + if (ch == "/" && maybeEnd) { + state.tokenize = null; + break; + } + maybeEnd = (ch == "*"); + } + return "comment"; + } + + function Context(indented, column, type, align, prev) { + this.indented = indented; + this.column = column; + this.type = type; + this.align = align; + this.prev = prev; + } + function isStatement(type) { + return type == "statement" || type == "switchstatement" || type == "namespace"; + } + function pushContext(state, col, type) { + var indent = state.indented; + if (state.context && isStatement(state.context.type) && !isStatement(type)) + indent = state.context.indented; + return state.context = new Context(indent, col, type, null, state.context); + } + function popContext(state) { + var t = state.context.type; + if (t == ")" || t == "]" || t == "}") + state.indented = state.context.indented; + return state.context = state.context.prev; + } + + function typeBefore(stream, state) { + if (state.prevToken == "variable" || state.prevToken == "variable-3") return true; + if (/\S(?:[^- ]>|[*\]])\s*$|\*$/.test(stream.string.slice(0, stream.start))) return true; + } + + function isTopScope(context) { + for (;;) { + if (!context || context.type == "top") return true; + if (context.type == "}" && context.prev.type != "namespace") return false; + context = context.prev; + } + } + + // Interface + + return { + startState: function(basecolumn) { + return { + tokenize: null, + context: new Context((basecolumn || 0) - indentUnit, 0, "top", false), + indented: 0, + startOfLine: true, + prevToken: null + }; + }, + + token: function(stream, state) { + var ctx = state.context; + if (stream.sol()) { + if (ctx.align == null) ctx.align = false; + state.indented = stream.indentation(); + state.startOfLine = true; + } + if (stream.eatSpace()) return null; + curPunc = isDefKeyword = null; + var style = (state.tokenize || tokenBase)(stream, state); + if (style == "comment" || style == "meta") return style; + if (ctx.align == null) ctx.align = true; + + if ((curPunc == ";" || curPunc == ":" || curPunc == ",")) + while (isStatement(state.context.type)) popContext(state); + else if (curPunc == "{") pushContext(state, stream.column(), "}"); + else if (curPunc == "[") pushContext(state, stream.column(), "]"); + else if (curPunc == "(") pushContext(state, stream.column(), ")"); + else if (curPunc == "}") { + while (isStatement(ctx.type)) ctx = popContext(state); + if (ctx.type == "}") ctx = popContext(state); + while (isStatement(ctx.type)) ctx = popContext(state); + } + else if (curPunc == ctx.type) popContext(state); + else if (indentStatements && + (((ctx.type == "}" || ctx.type == "top") && curPunc != ";") || + (isStatement(ctx.type) && curPunc == "newstatement"))) { + var type = "statement"; + if (curPunc == "newstatement" && indentSwitch && stream.current() == "switch") + type = "switchstatement"; + else if (style == "keyword" && stream.current() == "namespace") + type = "namespace"; + pushContext(state, stream.column(), type); + } + + if (style == "variable" && + ((state.prevToken == "def" || + (parserConfig.typeFirstDefinitions && typeBefore(stream, state) && + isTopScope(state.context) && stream.match(/^\s*\(/, false))))) + style = "def"; + + if (hooks.token) { + var result = hooks.token(stream, state, style); + if (result !== undefined) style = result; + } + + if (style == "def" && parserConfig.styleDefs === false) style = "variable"; + + state.startOfLine = false; + state.prevToken = isDefKeyword ? "def" : style || curPunc; + return style; + }, + + indent: function(state, textAfter) { + if (state.tokenize != tokenBase && state.tokenize != null) return CodeMirror.Pass; + var ctx = state.context, firstChar = textAfter && textAfter.charAt(0); + if (isStatement(ctx.type) && firstChar == "}") ctx = ctx.prev; + var closing = firstChar == ctx.type; + var switchBlock = ctx.prev && ctx.prev.type == "switchstatement"; + if (isStatement(ctx.type)) + return ctx.indented + (firstChar == "{" ? 0 : statementIndentUnit); + if (ctx.align && (!dontAlignCalls || ctx.type != ")")) + return ctx.column + (closing ? 0 : 1); + if (ctx.type == ")" && !closing) + return ctx.indented + statementIndentUnit; + + return ctx.indented + (closing ? 0 : indentUnit) + + (!closing && switchBlock && !/^(?:case|default)\b/.test(textAfter) ? indentUnit : 0); + }, + + electricInput: indentSwitch ? /^\s*(?:case .*?:|default:|\{\}?|\})$/ : /^\s*[{}]$/, + blockCommentStart: "/*", + blockCommentEnd: "*/", + lineComment: "//", + fold: "brace" + }; +}); + + function words(str) { + var obj = {}, words = str.split(" "); + for (var i = 0; i < words.length; ++i) obj[words[i]] = true; + return obj; + } + var cKeywords = "auto if break case register continue return default do sizeof " + + "static else struct switch extern typedef float union for " + + "goto while enum const volatile"; + var cTypes = "int long char short double float unsigned signed void size_t ptrdiff_t"; + + function cppHook(stream, state) { + if (!state.startOfLine) return false; + for (;;) { + if (stream.skipTo("\\")) { + stream.next(); + if (stream.eol()) { + state.tokenize = cppHook; + break; + } + } else { + stream.skipToEnd(); + state.tokenize = null; + break; + } + } + return "meta"; + } + + function pointerHook(_stream, state) { + if (state.prevToken == "variable-3") return "variable-3"; + return false; + } + + function cpp11StringHook(stream, state) { + stream.backUp(1); + // Raw strings. + if (stream.match(/(R|u8R|uR|UR|LR)/)) { + var match = stream.match(/"([^\s\\()]{0,16})\(/); + if (!match) { + return false; + } + state.cpp11RawStringDelim = match[1]; + state.tokenize = tokenRawString; + return tokenRawString(stream, state); + } + // Unicode strings/chars. + if (stream.match(/(u8|u|U|L)/)) { + if (stream.match(/["']/, /* eat */ false)) { + return "string"; + } + return false; + } + // Ignore this hook. + stream.next(); + return false; + } + + function cppLooksLikeConstructor(word) { + var lastTwo = /(\w+)::(\w+)$/.exec(word); + return lastTwo && lastTwo[1] == lastTwo[2]; + } + + // C#-style strings where "" escapes a quote. + function tokenAtString(stream, state) { + var next; + while ((next = stream.next()) != null) { + if (next == '"' && !stream.eat('"')) { + state.tokenize = null; + break; + } + } + return "string"; + } + + // C++11 raw string literal is "( anything )", where + // can be a string up to 16 characters long. + function tokenRawString(stream, state) { + // Escape characters that have special regex meanings. + var delim = state.cpp11RawStringDelim.replace(/[^\w\s]/g, '\\$&'); + var match = stream.match(new RegExp(".*?\\)" + delim + '"')); + if (match) + state.tokenize = null; + else + stream.skipToEnd(); + return "string"; + } + + function def(mimes, mode) { + if (typeof mimes == "string") mimes = [mimes]; + var words = []; + function add(obj) { + if (obj) for (var prop in obj) if (obj.hasOwnProperty(prop)) + words.push(prop); + } + add(mode.keywords); + add(mode.types); + add(mode.builtin); + add(mode.atoms); + if (words.length) { + mode.helperType = mimes[0]; + CodeMirror.registerHelper("hintWords", mimes[0], words); + } + + for (var i = 0; i < mimes.length; ++i) + CodeMirror.defineMIME(mimes[i], mode); + } + + def(["text/x-csrc", "text/x-c", "text/x-chdr"], { + name: "clike", + keywords: words(cKeywords), + types: words(cTypes + " bool _Complex _Bool float_t double_t intptr_t intmax_t " + + "int8_t int16_t int32_t int64_t uintptr_t uintmax_t uint8_t uint16_t " + + "uint32_t uint64_t"), + blockKeywords: words("case do else for if switch while struct"), + defKeywords: words("struct"), + typeFirstDefinitions: true, + atoms: words("null true false"), + hooks: {"#": cppHook, "*": pointerHook}, + modeProps: {fold: ["brace", "include"]} + }); + + def(["text/x-c++src", "text/x-c++hdr"], { + name: "clike", + keywords: words(cKeywords + " asm dynamic_cast namespace reinterpret_cast try explicit new " + + "static_cast typeid catch operator template typename class friend private " + + "this using const_cast inline public throw virtual delete mutable protected " + + "alignas alignof constexpr decltype nullptr noexcept thread_local final " + + "static_assert override"), + types: words(cTypes + " bool wchar_t"), + blockKeywords: words("catch class do else finally for if struct switch try while"), + defKeywords: words("class namespace struct enum union"), + typeFirstDefinitions: true, + atoms: words("true false null"), + hooks: { + "#": cppHook, + "*": pointerHook, + "u": cpp11StringHook, + "U": cpp11StringHook, + "L": cpp11StringHook, + "R": cpp11StringHook, + token: function(stream, state, style) { + if (style == "variable" && stream.peek() == "(" && + (state.prevToken == ";" || state.prevToken == null || + state.prevToken == "}") && + cppLooksLikeConstructor(stream.current())) + return "def"; + } + }, + namespaceSeparator: "::", + modeProps: {fold: ["brace", "include"]} + }); + + def("text/x-java", { + name: "clike", + keywords: words("abstract assert break case catch class const continue default " + + "do else enum extends final finally float for goto if implements import " + + "instanceof interface native new package private protected public " + + "return static strictfp super switch synchronized this throw throws transient " + + "try volatile while"), + types: words("byte short int long float double boolean char void Boolean Byte Character Double Float " + + "Integer Long Number Object Short String StringBuffer StringBuilder Void"), + blockKeywords: words("catch class do else finally for if switch try while"), + defKeywords: words("class interface package enum"), + typeFirstDefinitions: true, + atoms: words("true false null"), + hooks: { + "@": function(stream) { + stream.eatWhile(/[\w\$_]/); + return "meta"; + } + }, + modeProps: {fold: ["brace", "import"]} + }); + + def("text/x-csharp", { + name: "clike", + keywords: words("abstract as async await base break case catch checked class const continue" + + " default delegate do else enum event explicit extern finally fixed for" + + " foreach goto if implicit in interface internal is lock namespace new" + + " operator out override params private protected public readonly ref return sealed" + + " sizeof stackalloc static struct switch this throw try typeof unchecked" + + " unsafe using virtual void volatile while add alias ascending descending dynamic from get" + + " global group into join let orderby partial remove select set value var yield"), + types: words("Action Boolean Byte Char DateTime DateTimeOffset Decimal Double Func" + + " Guid Int16 Int32 Int64 Object SByte Single String Task TimeSpan UInt16 UInt32" + + " UInt64 bool byte char decimal double short int long object" + + " sbyte float string ushort uint ulong"), + blockKeywords: words("catch class do else finally for foreach if struct switch try while"), + defKeywords: words("class interface namespace struct var"), + typeFirstDefinitions: true, + atoms: words("true false null"), + hooks: { + "@": function(stream, state) { + if (stream.eat('"')) { + state.tokenize = tokenAtString; + return tokenAtString(stream, state); + } + stream.eatWhile(/[\w\$_]/); + return "meta"; + } + } + }); + + function tokenTripleString(stream, state) { + var escaped = false; + while (!stream.eol()) { + if (!escaped && stream.match('"""')) { + state.tokenize = null; + break; + } + escaped = stream.next() == "\\" && !escaped; + } + return "string"; + } + + def("text/x-scala", { + name: "clike", + keywords: words( + + /* scala */ + "abstract case catch class def do else extends false final finally for forSome if " + + "implicit import lazy match new null object override package private protected return " + + "sealed super this throw trait try type val var while with yield _ : = => <- <: " + + "<% >: # @ " + + + /* package scala */ + "assert assume require print println printf readLine readBoolean readByte readShort " + + "readChar readInt readLong readFloat readDouble " + + + ":: #:: " + ), + types: words( + "AnyVal App Application Array BufferedIterator BigDecimal BigInt Char Console Either " + + "Enumeration Equiv Error Exception Fractional Function IndexedSeq Integral Iterable " + + "Iterator List Map Numeric Nil NotNull Option Ordered Ordering PartialFunction PartialOrdering " + + "Product Proxy Range Responder Seq Serializable Set Specializable Stream StringBuilder " + + "StringContext Symbol Throwable Traversable TraversableOnce Tuple Unit Vector " + + + /* package java.lang */ + "Boolean Byte Character CharSequence Class ClassLoader Cloneable Comparable " + + "Compiler Double Exception Float Integer Long Math Number Object Package Pair Process " + + "Runtime Runnable SecurityManager Short StackTraceElement StrictMath String " + + "StringBuffer System Thread ThreadGroup ThreadLocal Throwable Triple Void" + ), + multiLineStrings: true, + blockKeywords: words("catch class do else finally for forSome if match switch try while"), + defKeywords: words("class def object package trait type val var"), + atoms: words("true false null"), + indentStatements: false, + indentSwitch: false, + hooks: { + "@": function(stream) { + stream.eatWhile(/[\w\$_]/); + return "meta"; + }, + '"': function(stream, state) { + if (!stream.match('""')) return false; + state.tokenize = tokenTripleString; + return state.tokenize(stream, state); + }, + "'": function(stream) { + stream.eatWhile(/[\w\$_\xa1-\uffff]/); + return "atom"; + } + }, + modeProps: {closeBrackets: {triples: '"'}} + }); + + def(["x-shader/x-vertex", "x-shader/x-fragment"], { + name: "clike", + keywords: words("sampler1D sampler2D sampler3D samplerCube " + + "sampler1DShadow sampler2DShadow " + + "const attribute uniform varying " + + "break continue discard return " + + "for while do if else struct " + + "in out inout"), + types: words("float int bool void " + + "vec2 vec3 vec4 ivec2 ivec3 ivec4 bvec2 bvec3 bvec4 " + + "mat2 mat3 mat4"), + blockKeywords: words("for while do if else struct"), + builtin: words("radians degrees sin cos tan asin acos atan " + + "pow exp log exp2 sqrt inversesqrt " + + "abs sign floor ceil fract mod min max clamp mix step smoothstep " + + "length distance dot cross normalize ftransform faceforward " + + "reflect refract matrixCompMult " + + "lessThan lessThanEqual greaterThan greaterThanEqual " + + "equal notEqual any all not " + + "texture1D texture1DProj texture1DLod texture1DProjLod " + + "texture2D texture2DProj texture2DLod texture2DProjLod " + + "texture3D texture3DProj texture3DLod texture3DProjLod " + + "textureCube textureCubeLod " + + "shadow1D shadow2D shadow1DProj shadow2DProj " + + "shadow1DLod shadow2DLod shadow1DProjLod shadow2DProjLod " + + "dFdx dFdy fwidth " + + "noise1 noise2 noise3 noise4"), + atoms: words("true false " + + "gl_FragColor gl_SecondaryColor gl_Normal gl_Vertex " + + "gl_MultiTexCoord0 gl_MultiTexCoord1 gl_MultiTexCoord2 gl_MultiTexCoord3 " + + "gl_MultiTexCoord4 gl_MultiTexCoord5 gl_MultiTexCoord6 gl_MultiTexCoord7 " + + "gl_FogCoord gl_PointCoord " + + "gl_Position gl_PointSize gl_ClipVertex " + + "gl_FrontColor gl_BackColor gl_FrontSecondaryColor gl_BackSecondaryColor " + + "gl_TexCoord gl_FogFragCoord " + + "gl_FragCoord gl_FrontFacing " + + "gl_FragData gl_FragDepth " + + "gl_ModelViewMatrix gl_ProjectionMatrix gl_ModelViewProjectionMatrix " + + "gl_TextureMatrix gl_NormalMatrix gl_ModelViewMatrixInverse " + + "gl_ProjectionMatrixInverse gl_ModelViewProjectionMatrixInverse " + + "gl_TexureMatrixTranspose gl_ModelViewMatrixInverseTranspose " + + "gl_ProjectionMatrixInverseTranspose " + + "gl_ModelViewProjectionMatrixInverseTranspose " + + "gl_TextureMatrixInverseTranspose " + + "gl_NormalScale gl_DepthRange gl_ClipPlane " + + "gl_Point gl_FrontMaterial gl_BackMaterial gl_LightSource gl_LightModel " + + "gl_FrontLightModelProduct gl_BackLightModelProduct " + + "gl_TextureColor gl_EyePlaneS gl_EyePlaneT gl_EyePlaneR gl_EyePlaneQ " + + "gl_FogParameters " + + "gl_MaxLights gl_MaxClipPlanes gl_MaxTextureUnits gl_MaxTextureCoords " + + "gl_MaxVertexAttribs gl_MaxVertexUniformComponents gl_MaxVaryingFloats " + + "gl_MaxVertexTextureImageUnits gl_MaxTextureImageUnits " + + "gl_MaxFragmentUniformComponents gl_MaxCombineTextureImageUnits " + + "gl_MaxDrawBuffers"), + indentSwitch: false, + hooks: {"#": cppHook}, + modeProps: {fold: ["brace", "include"]} + }); + + def("text/x-nesc", { + name: "clike", + keywords: words(cKeywords + "as atomic async call command component components configuration event generic " + + "implementation includes interface module new norace nx_struct nx_union post provides " + + "signal task uses abstract extends"), + types: words(cTypes), + blockKeywords: words("case do else for if switch while struct"), + atoms: words("null true false"), + hooks: {"#": cppHook}, + modeProps: {fold: ["brace", "include"]} + }); + + def("text/x-objectivec", { + name: "clike", + keywords: words(cKeywords + "inline restrict _Bool _Complex _Imaginery BOOL Class bycopy byref id IMP in " + + "inout nil oneway out Protocol SEL self super atomic nonatomic retain copy readwrite readonly"), + types: words(cTypes), + atoms: words("YES NO NULL NILL ON OFF true false"), + hooks: { + "@": function(stream) { + stream.eatWhile(/[\w\$]/); + return "keyword"; + }, + "#": cppHook + }, + modeProps: {fold: "brace"} + }); + + def("text/x-squirrel", { + name: "clike", + keywords: words("base break clone continue const default delete enum extends function in class" + + " foreach local resume return this throw typeof yield constructor instanceof static"), + types: words(cTypes), + blockKeywords: words("case catch class else for foreach if switch try while"), + defKeywords: words("function local class"), + typeFirstDefinitions: true, + atoms: words("true false null"), + hooks: {"#": cppHook}, + modeProps: {fold: ["brace", "include"]} + }); + +}); diff --git a/public/assets/codemirror/codemirror.css b/public/assets/codemirror/codemirror.css new file mode 100644 index 000000000..12a488ad5 --- /dev/null +++ b/public/assets/codemirror/codemirror.css @@ -0,0 +1,335 @@ +/* BASICS */ + +.CodeMirror { + /* Set height, width, borders, and global font properties here */ + font-family: monospace; + height: 300px; + color: black; + border: 1px solid #D9D9D9; +} + +/* PADDING */ + +.CodeMirror-lines { + padding: 4px 0; /* Vertical padding around content */ +} +.CodeMirror pre { + padding: 0 4px; /* Horizontal padding of content */ +} + +.CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler { + background-color: white; /* The little square between H and V scrollbars */ +} + +/* GUTTER */ + +.CodeMirror-gutters { + border-right: 1px solid #ddd; + background-color: #f7f7f7; + white-space: nowrap; +} +.CodeMirror-linenumbers {} +.CodeMirror-linenumber { + padding: 0 3px 0 5px; + min-width: 20px; + text-align: right; + color: #999; + white-space: nowrap; +} + +.CodeMirror-guttermarker { color: black; } +.CodeMirror-guttermarker-subtle { color: #999; } + +/* CURSOR */ + +.CodeMirror-cursor { + border-left: 1px solid black; + border-right: none; + width: 0; +} +/* Shown when moving in bi-directional text */ +.CodeMirror div.CodeMirror-secondarycursor { + border-left: 1px solid silver; +} +.cm-fat-cursor .CodeMirror-cursor { + width: auto; + border: 0; + background: #7e7; +} +.cm-fat-cursor div.CodeMirror-cursors { + z-index: 1; +} + +.cm-animate-fat-cursor { + width: auto; + border: 0; + -webkit-animation: blink 1.06s steps(1) infinite; + -moz-animation: blink 1.06s steps(1) infinite; + animation: blink 1.06s steps(1) infinite; + background-color: #7e7; +} +@-moz-keyframes blink { + 0% {} + 50% { background-color: transparent; } + 100% {} +} +@-webkit-keyframes blink { + 0% {} + 50% { background-color: transparent; } + 100% {} +} +@keyframes blink { + 0% {} + 50% { background-color: transparent; } + 100% {} +} + +/* Can style cursor different in overwrite (non-insert) mode */ +.CodeMirror-overwrite .CodeMirror-cursor {} + +.cm-tab { display: inline-block; text-decoration: inherit; } + +.CodeMirror-ruler { + border-left: 1px solid #ccc; + position: absolute; +} + +/* DEFAULT THEME */ + +.cm-s-default .cm-header {color: blue;} +.cm-s-default .cm-quote {color: #090;} +.cm-negative {color: #d44;} +.cm-positive {color: #292;} +.cm-header, .cm-strong {font-weight: bold;} +.cm-em {font-style: italic;} +.cm-link {text-decoration: underline;} +.cm-strikethrough {text-decoration: line-through;} + +.cm-s-default .cm-keyword {color: #708;} +.cm-s-default .cm-atom {color: #219;} +.cm-s-default .cm-number {color: #164;} +.cm-s-default .cm-def {color: #00f;} +.cm-s-default .cm-variable, +.cm-s-default .cm-punctuation, +.cm-s-default .cm-property, +.cm-s-default .cm-operator {} +.cm-s-default .cm-variable-2 {color: #05a;} +.cm-s-default .cm-variable-3 {color: #085;} +.cm-s-default .cm-comment {color: #a50;} +.cm-s-default .cm-string {color: #a11;} +.cm-s-default .cm-string-2 {color: #f50;} +.cm-s-default .cm-meta {color: #555;} +.cm-s-default .cm-qualifier {color: #555;} +.cm-s-default .cm-builtin {color: #30a;} +.cm-s-default .cm-bracket {color: #997;} +.cm-s-default .cm-tag {color: #170;} +.cm-s-default .cm-attribute {color: #00c;} +.cm-s-default .cm-hr {color: #999;} +.cm-s-default .cm-link {color: #00c;} + +.cm-s-default .cm-error {color: #f00;} +.cm-invalidchar {color: #f00;} + +.CodeMirror-composing { border-bottom: 2px solid; } + +/* Default styles for common addons */ + +div.CodeMirror span.CodeMirror-matchingbracket {color: #0f0;} +div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #f22;} +.CodeMirror-matchingtag { background: rgba(255, 150, 0, .3); } +.CodeMirror-activeline-background {background: #e8f2ff;} + +/* STOP */ + +/* The rest of this file contains styles related to the mechanics of + the editor. You probably shouldn't touch them. */ + +.CodeMirror { + position: relative; + overflow: hidden; + background: white; +} + +.CodeMirror-scroll { + overflow: scroll !important; /* Things will break if this is overridden */ + /* 30px is the magic margin used to hide the element's real scrollbars */ + /* See overflow: hidden in .CodeMirror */ + margin-bottom: -30px; margin-right: -30px; + padding-bottom: 30px; + height: 100%; + outline: none; /* Prevent dragging from highlighting the element */ + position: relative; +} +.CodeMirror-sizer { + position: relative; + border-right: 30px solid transparent; +} + +/* The fake, visible scrollbars. Used to force redraw during scrolling + before actuall scrolling happens, thus preventing shaking and + flickering artifacts. */ +.CodeMirror-vscrollbar, .CodeMirror-hscrollbar, .CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler { + position: absolute; + z-index: 6; + display: none; +} +.CodeMirror-vscrollbar { + right: 0; top: 0; + overflow-x: hidden; + overflow-y: scroll; +} +.CodeMirror-hscrollbar { + bottom: 0; left: 0; + overflow-y: hidden; + overflow-x: scroll; +} +.CodeMirror-scrollbar-filler { + right: 0; bottom: 0; +} +.CodeMirror-gutter-filler { + left: 0; bottom: 0; +} + +.CodeMirror-gutters { + position: absolute; left: 0; top: 0; + z-index: 3; +} +.CodeMirror-gutter { + white-space: normal; + height: 100%; + display: inline-block; + margin-bottom: -30px; + /* Hack to make IE7 behave */ + *zoom:1; + *display:inline; +} +.CodeMirror-gutter-wrapper { + position: absolute; + z-index: 4; + background: none !important; + border: none !important; +} +.CodeMirror-gutter-background { + position: absolute; + top: 0; bottom: 0; + z-index: 4; +} +.CodeMirror-gutter-elt { + position: absolute; + cursor: default; + z-index: 4; +} +.CodeMirror-gutter-wrapper { + -webkit-user-select: none; + -moz-user-select: none; + user-select: none; +} + +.CodeMirror-lines { + cursor: text; + min-height: 1px; /* prevents collapsing before first draw */ +} +.CodeMirror pre { + /* Reset some styles that the rest of the page might have set */ + -moz-border-radius: 0; -webkit-border-radius: 0; border-radius: 0; + border-width: 0; + background: transparent; + font-family: inherit; + font-size: inherit; + margin: 0; + white-space: pre; + word-wrap: normal; + line-height: inherit; + color: inherit; + z-index: 2; + position: relative; + overflow: visible; + -webkit-tap-highlight-color: transparent; +} +.CodeMirror-wrap pre { + word-wrap: break-word; + white-space: pre-wrap; + word-break: normal; +} + +.CodeMirror-linebackground { + position: absolute; + left: 0; right: 0; top: 0; bottom: 0; + z-index: 0; +} + +.CodeMirror-linewidget { + position: relative; + z-index: 2; + overflow: auto; +} + +.CodeMirror-widget {} + +.CodeMirror-code { + outline: none; +} + +/* Force content-box sizing for the elements where we expect it */ +.CodeMirror-scroll, +.CodeMirror-sizer, +.CodeMirror-gutter, +.CodeMirror-gutters, +.CodeMirror-linenumber { + -moz-box-sizing: content-box; + box-sizing: content-box; +} + +.CodeMirror-measure { + position: absolute; + width: 100%; + height: 0; + overflow: hidden; + visibility: hidden; +} + +.CodeMirror-cursor { position: absolute; } +.CodeMirror-measure pre { position: static; } + +div.CodeMirror-cursors { + visibility: hidden; + position: relative; + z-index: 3; +} +div.CodeMirror-dragcursors { + visibility: visible; +} + +.CodeMirror-focused div.CodeMirror-cursors { + visibility: visible; +} + +.CodeMirror-selected { background: #d9d9d9; } +.CodeMirror-focused .CodeMirror-selected { background: #d7d4f0; } +.CodeMirror-crosshair { cursor: crosshair; } +.CodeMirror-line::selection, .CodeMirror-line > span::selection, .CodeMirror-line > span > span::selection { background: #d7d4f0; } +.CodeMirror-line::-moz-selection, .CodeMirror-line > span::-moz-selection, .CodeMirror-line > span > span::-moz-selection { background: #d7d4f0; } + +.cm-searching { + background: #ffa; + background: rgba(255, 255, 0, .4); +} + +/* IE7 hack to prevent it from returning funny offsetTops on the spans */ +.CodeMirror span { *vertical-align: text-bottom; } + +/* Used to force a border model for a node */ +.cm-force-border { padding-right: .1px; } + +@media print { + /* Hide the cursor when printing */ + .CodeMirror div.CodeMirror-cursors { + visibility: hidden; + } +} + +/* See issue #2901 */ +.cm-tab-wrap-hack:after { content: ''; } + +/* Help users use markselection to safely style text background */ +span.CodeMirror-selectedtext { background: none; } diff --git a/public/assets/codemirror/codemirror.js b/public/assets/codemirror/codemirror.js new file mode 100644 index 000000000..5de8a1332 --- /dev/null +++ b/public/assets/codemirror/codemirror.js @@ -0,0 +1,8822 @@ +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: http://codemirror.net/LICENSE + +// This is CodeMirror (http://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(mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + module.exports = mod(); + else if (typeof define == "function" && define.amd) // AMD + return define([], mod); + else // Plain browser env + this.CodeMirror = mod(); +})(function() { + "use strict"; + + // BROWSER SNIFFING + + // Kludges for bugs and behavior differences that can't be feature + // detected are enabled based on userAgent etc sniffing. + + var gecko = /gecko\/\d/i.test(navigator.userAgent); + var ie_upto10 = /MSIE \d/.test(navigator.userAgent); + var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(navigator.userAgent); + var ie = ie_upto10 || ie_11up; + var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : ie_11up[1]); + var webkit = /WebKit\//.test(navigator.userAgent); + var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(navigator.userAgent); + var chrome = /Chrome\//.test(navigator.userAgent); + var presto = /Opera\//.test(navigator.userAgent); + var safari = /Apple Computer/.test(navigator.vendor); + var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(navigator.userAgent); + var phantom = /PhantomJS/.test(navigator.userAgent); + + var ios = /AppleWebKit/.test(navigator.userAgent) && /Mobile\/\w+/.test(navigator.userAgent); + // This is woefully incomplete. Suggestions for alternative methods welcome. + var mobile = ios || /Android|webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(navigator.userAgent); + var mac = ios || /Mac/.test(navigator.platform); + var windows = /win/i.test(navigator.platform); + + var presto_version = presto && navigator.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); + + // Optimize some code when these features are not used. + var sawReadOnlySpans = false, sawCollapsedSpans = false; + + // EDITOR CONSTRUCTOR + + // A CodeMirror instance represents an editor. This is the object + // that user code is usually dealing with. + + function CodeMirror(place, options) { + 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); + setGuttersForLineNumbers(options); + + var doc = options.value; + if (typeof doc == "string") doc = new Doc(doc, options.mode, null, options.lineSeparator); + this.doc = doc; + + var input = new CodeMirror.inputStyles[options.inputStyle](this); + var display = this.display = new Display(place, doc, input); + display.wrapper.CodeMirror = this; + updateGutters(this); + themeChanged(this); + if (options.lineWrapping) + this.display.wrapper.className += " CodeMirror-wrap"; + if (options.autofocus && !mobile) display.input.focus(); + 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: false, cutIncoming: false, // 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 + }; + + var cm = this; + + // Override magic textarea content restore that IE sometimes does + // on our hidden textarea on reload + if (ie && ie_version < 11) setTimeout(function() { cm.display.input.reset(true); }, 20); + + registerEventHandlers(this); + ensureGlobalHandlers(); + + startOperation(this); + this.curOp.forceUpdate = true; + attachDoc(this, doc); + + if ((options.autofocus && !mobile) || cm.hasFocus()) + setTimeout(bind(onFocus, this), 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"; + } + + // DISPLAY CONSTRUCTOR + + // 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) { + 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 = elt("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 = elt("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv], + null, "position: relative; outline: none"); + // Moved around its parent to cover visible view. + d.mover = elt("div", [elt("div", [d.lineSpace], "CodeMirror-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; + + input.init(d); + } + + // STATE UPDATES + + // Used to get the editor into a consistent state again when options change. + + function loadMode(cm) { + cm.doc.mode = CodeMirror.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.frontier = cm.doc.first; + startWorker(cm, 100); + cm.state.modeGen++; + if (cm.curOp) regChange(cm); + } + + 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(){updateScrollbars(cm);}, 100); + } + + // 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); + }); + } + + 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); + } + + function guttersChanged(cm) { + updateGutters(cm); + regChange(cm); + setTimeout(function(){alignHorizontally(cm);}, 20); + } + + // Rebuild the gutter elements, ensure the margin to the left of the + // code matches their width. + function updateGutters(cm) { + var gutters = cm.display.gutters, specs = cm.options.gutters; + removeChildren(gutters); + for (var i = 0; i < specs.length; ++i) { + var gutterClass = specs[i]; + var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + gutterClass)); + if (gutterClass == "CodeMirror-linenumbers") { + cm.display.lineGutter = gElt; + gElt.style.width = (cm.display.lineNumWidth || 1) + "px"; + } + } + gutters.style.display = i ? "" : "none"; + updateGutterSpace(cm); + } + + function updateGutterSpace(cm) { + var width = cm.display.gutters.offsetWidth; + cm.display.sizer.style.marginLeft = width + "px"; + } + + // 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 = merged.find(0, true); + len -= cur.text.length - found.from.ch; + cur = found.to.line; + len += cur.text.length - found.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; + } + }); + } + + // Make sure the gutters options contains the element + // "CodeMirror-linenumbers" when the lineNumbers option is true. + function setGuttersForLineNumbers(options) { + var found = indexOf(options.gutters, "CodeMirror-linenumbers"); + if (found == -1 && options.lineNumbers) { + options.gutters = options.gutters.concat(["CodeMirror-linenumbers"]); + } else if (found > -1 && !options.lineNumbers) { + options.gutters = options.gutters.slice(0); + options.gutters.splice(found, 1); + } + } + + // 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 + }; + } + + function NativeScrollbars(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"); + 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.checkedOverlay = 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 = copyObj({ + 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 = + (measure.scrollWidth - measure.clientWidth + totalWidth) + "px"; + } else { + this.horiz.style.display = ""; + this.horiz.firstChild.style.width = "0"; + } + + if (!this.checkedOverlay && measure.clientHeight > 0) { + if (sWidth == 0) this.overlayHack(); + this.checkedOverlay = true; + } + + return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0}; + }, + setScrollLeft: function(pos) { + if (this.horiz.scrollLeft != pos) this.horiz.scrollLeft = pos; + }, + setScrollTop: function(pos) { + if (this.vert.scrollTop != pos) this.vert.scrollTop = pos; + }, + overlayHack: function() { + var w = mac && !mac_geMountainLion ? "12px" : "18px"; + this.horiz.style.minHeight = this.vert.style.minWidth = w; + var self = this; + var barMouseDown = function(e) { + if (e_target(e) != self.vert && e_target(e) != self.horiz) + operation(self.cm, onMouseDown)(e); + }; + on(this.vert, "mousedown", barMouseDown); + on(this.horiz, "mousedown", barMouseDown); + }, + clear: function() { + var parent = this.horiz.parentNode; + parent.removeChild(this.horiz); + parent.removeChild(this.vert); + } + }, NativeScrollbars.prototype); + + function NullScrollbars() {} + + NullScrollbars.prototype = copyObj({ + update: function() { return {bottom: 0, right: 0}; }, + setScrollLeft: function() {}, + setScrollTop: function() {}, + clear: function() {} + }, NullScrollbars.prototype); + + CodeMirror.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 CodeMirror.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() { cm.display.input.focus(); }, 0); + }); + node.setAttribute("cm-not-content", "true"); + }, function(pos, axis) { + if (axis == "horizontal") setScrollLeft(cm, pos); + else setScrollTop(cm, pos); + }, cm); + if (cm.display.scrollbars.addClass) + addClass(cm.display.wrapper, cm.display.scrollbars.addClass); + } + + 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"; + + 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 = ""; + } + + // 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)}; + } + + // LINE NUMBERS + + // 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 && view[i].gutter) + view[i].gutter.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); + return true; + } + return false; + } + + function lineNumberFor(options, i) { + return String(options.lineNumberFormatter(i + options.firstLineNumber)); + } + + // 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; + } + + // DISPLAY DRAWING + + function DisplayUpdate(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; + } + } + + // 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 focused = activeElt(); + 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. + if (focused && activeElt() != focused && focused.offsetHeight) focused.focus(); + + // 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; + } + if (!updateDisplayIfNeeded(cm, update)) break; + updateHeightsInViewport(cm); + var barMeasure = measureForScrollbars(cm); + updateSelection(cm); + setDocumentHeight(cm, barMeasure); + updateScrollbars(cm, barMeasure); + } + + 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); + setDocumentHeight(cm, barMeasure); + updateScrollbars(cm, barMeasure); + update.finish(); + } + } + + function setDocumentHeight(cm, measure) { + cm.display.sizer.style.minHeight = measure.docHeight + "px"; + var total = measure.docHeight + cm.display.barHeight; + cm.display.heightForcer.style.top = total + "px"; + cm.display.gutters.style.height = Math.max(total + scrollGap(cm), measure.clientHeight) + "px"; + } + + // 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], height; + 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; + } + var diff = cur.line.height - height; + if (height < 2) height = textHeight(display); + if (diff > .001 || diff < -.001) { + updateLineHeight(cur.line, height); + updateWidgetHeight(cur.line); + if (cur.rest) for (var j = 0; j < cur.rest.length; j++) + updateWidgetHeight(cur.rest[j]); + } + } + } + + // 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) + line.widgets[i].height = line.widgets[i].node.offsetHeight; + } + + // 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) { + left[cm.options.gutters[i]] = n.offsetLeft + n.clientLeft + gutterLeft; + width[cm.options.gutters[i]] = n.clientWidth; + } + return {fixedPos: compensateForHScroll(d), + gutterTotalWidth: d.gutters.offsetWidth, + gutterLeft: left, + gutterWidth: width, + wrapperWidth: d.wrapper.clientWidth}; + } + + // 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); + } + + // 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(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(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); + } + } + + // 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(lineView); + } else if (cls) { + lineView.text.className = cls; + } + } + + function updateLineClasses(lineView) { + updateLineBackground(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"); + wrap.insertBefore(lineView.gutterBackground, lineView.text); + } + var markers = lineView.line.gutterMarkers; + if (cm.options.lineNumbers || markers) { + var wrap = 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.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.options.gutters.length; ++k) { + var id = cm.options.gutters[k], 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; + for (var node = lineView.node.firstChild, next; node; node = next) { + var next = node.nextSibling; + if (node.className == "CodeMirror-linewidget") + 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(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"); + 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"; + } + } + + // POSITION OBJECT + + // A Pos instance represents a position within the text. + var Pos = CodeMirror.Pos = function(line, ch) { + if (!(this instanceof Pos)) return new Pos(line, ch); + this.line = line; this.ch = ch; + }; + + // Compare two positions, return 0 if they are the same, a negative + // number when a is less, and a positive number otherwise. + var cmp = CodeMirror.cmpPos = function(a, b) { return a.line - b.line || a.ch - b.ch; }; + + 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; } + + // INPUT HANDLING + + function ensureFocus(cm) { + if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm); } + } + + function isReadOnly(cm) { + return cm.options.readOnly || cm.doc.cantEdit; + } + + // This will be set to an array of strings when copying, so that, + // when pasting, we know what kind of selections the copied text + // was made out of. + var lastCopied = null; + + function applyTextInput(cm, inserted, deleted, sel, origin) { + var doc = cm.doc; + cm.display.shift = false; + if (!sel) sel = doc.sel; + + var paste = cm.state.pasteIncoming || origin == "paste"; + var textLines = doc.splitLines(inserted), multiPaste = null; + // When pasing N lines into N selections, insert one line per selection + if (paste && sel.ranges.length > 1) { + if (lastCopied && lastCopied.join("\n") == inserted) { + if (sel.ranges.length % lastCopied.length == 0) { + multiPaste = []; + for (var i = 0; i < lastCopied.length; i++) + multiPaste.push(doc.splitLines(lastCopied[i])); + } + } else if (textLines.length == sel.ranges.length) { + multiPaste = map(textLines, function(l) { return [l]; }); + } + } + + // Normal behavior is to insert the new text into every selection + for (var i = sel.ranges.length - 1; i >= 0; i--) { + var range = sel.ranges[i]; + 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)); + } + var updateInput = cm.curOp.updateInput; + var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i % multiPaste.length] : textLines, + origin: origin || (paste ? "paste" : cm.state.cutIncoming ? "cut" : "+input")}; + makeChange(cm.doc, changeEvent); + signalLater(cm, "inputRead", cm, changeEvent); + } + if (inserted && !paste) + triggerElectric(cm, inserted); + + ensureCursorVisible(cm); + cm.curOp.updateInput = updateInput; + cm.curOp.typing = true; + cm.state.pasteIncoming = cm.state.cutIncoming = false; + } + + function handlePaste(e, cm) { + var pasted = e.clipboardData && e.clipboardData.getData("text/plain"); + if (pasted) { + e.preventDefault(); + if (!isReadOnly(cm) && !cm.options.disableInput) + runInOp(cm, function() { 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) { + field.setAttribute("autocorrect", "off"); + field.setAttribute("autocapitalize", "off"); + field.setAttribute("spellcheck", "false"); + } + + // TEXTAREA INPUT STYLE + + function TextareaInput(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(); + // Tracks when input.reset has punted to just putting a short + // string into the textarea instead of the full selection. + this.inaccurateSelection = false; + // Used to work around IE issue with selection being forgotten when focus moves away from textarea + this.hasSelection = false; + this.composing = null; + }; + + function hiddenTextarea() { + var te = elt("textarea", null, null, "position: absolute; 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; + } + + TextareaInput.prototype = copyObj({ + init: function(display) { + var input = this, cm = this.cm; + + // Wraps and hides input textarea + var div = this.wrapper = hiddenTextarea(); + // The semihidden textarea that is focused when the editor is + // focused, and receives input. + var te = this.textarea = div.firstChild; + display.wrapper.insertBefore(div, 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 && input.hasSelection) input.hasSelection = null; + input.poll(); + }); + + on(te, "paste", function(e) { + if (handlePaste(e, cm)) return true; + + cm.state.pasteIncoming = true; + input.fastPoll(); + }); + + function prepareCopyCut(e) { + if (cm.somethingSelected()) { + lastCopied = cm.getSelections(); + if (input.inaccurateSelection) { + input.prevInput = ""; + input.inaccurateSelection = false; + te.value = lastCopied.join("\n"); + selectInput(te); + } + } else if (!cm.options.lineWiseCopyCut) { + return; + } else { + var ranges = copyableRanges(cm); + lastCopied = 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 = true; + } + on(te, "cut", prepareCopyCut); + on(te, "copy", prepareCopyCut); + + on(display.scroller, "paste", function(e) { + if (eventInWidget(display, e)) return; + cm.state.pasteIncoming = true; + input.focus(); + }); + + // 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"); + 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; + } + }); + }, + + 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; + }, + + 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) + reset: function(typing) { + if (this.contextMenuPending) return; + var minimal, selected, cm = this.cm, doc = cm.doc; + if (cm.somethingSelected()) { + this.prevInput = ""; + var range = doc.sel.primary(); + minimal = hasCopyEvent && + (range.to().line - range.from().line > 100 || (selected = cm.getSelection()).length > 1000); + var content = minimal ? "-" : selected || 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; + } + this.inaccurateSelection = minimal; + }, + + getField: function() { return this.textarea; }, + + supportsTouch: function() { return false; }, + + 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 + } + }, + + blur: function() { this.textarea.blur(); }, + + resetPosition: function() { + this.wrapper.style.top = this.wrapper.style.left = 0; + }, + + receivedFocus: function() { this.slowPoll(); }, + + // Poll for input changes, using the normal rate of polling. This + // runs as long as the editor is focused. + slowPoll: function() { + var input = this; + if (input.pollingFast) return; + input.polling.set(this.cm.options.pollInterval, function() { + input.poll(); + if (input.cm.state.focused) input.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. + 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). + poll: function() { + 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) || + isReadOnly(cm) || 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; + + var self = this; + runInOp(cm, function() { + applyTextInput(cm, text.slice(same), prevInput.length - same, + null, self.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 = self.prevInput = ""; + else self.prevInput = text; + + if (self.composing) { + self.composing.range.clear(); + self.composing.range = cm.markText(self.composing.start, cm.getCursor("to"), + {className: "CodeMirror-composing"}); + } + }); + return true; + }, + + ensurePolled: function() { + if (this.pollingFast && this.poll()) this.pollingFast = false; + }, + + onKeyPress: function() { + if (ie && ie_version >= 9) this.hasSelection = null; + this.fastPoll(); + }, + + onContextMenu: function(e) { + var input = this, cm = input.cm, display = cm.display, te = input.textarea; + 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; + input.wrapper.style.position = "absolute"; + te.style.cssText = "position: fixed; width: 30px; height: 30px; top: " + (e.clientY - 5) + + "px; left: " + (e.clientX - 5) + "px; z-index: 1000; background: " + + (ie ? "rgba(255, 255, 255, .05)" : "transparent") + + "; outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);"; + if (webkit) var 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 = true; + 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() { + input.contextMenuPending = false; + input.wrapper.style.position = "relative"; + 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, commands.selectAll)(cm); + else if (i++ < 10) display.detectingSelectAll = setTimeout(poll, 500); + else 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); + } + }, + + setUneditable: nothing, + + needsContentAttribute: false + }, TextareaInput.prototype); + + // CONTENTEDITABLE INPUT STYLE + + function ContentEditableInput(cm) { + this.cm = cm; + this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null; + this.polling = new Delayed(); + this.gracePeriod = false; + } + + ContentEditableInput.prototype = copyObj({ + init: function(display) { + var input = this, cm = input.cm; + var div = input.div = display.lineDiv; + div.contentEditable = "true"; + disableBrowserMagic(div); + + on(div, "paste", function(e) { handlePaste(e, cm); }) + + on(div, "compositionstart", function(e) { + var data = e.data; + input.composing = {sel: cm.doc.sel, data: data, startData: data}; + if (!data) return; + var prim = cm.doc.sel.primary(); + var line = cm.getLine(prim.head.line); + var found = line.indexOf(data, Math.max(0, prim.head.ch - data.length)); + if (found > -1 && found <= prim.head.ch) + input.composing.sel = simpleSelection(Pos(prim.head.line, found), + Pos(prim.head.line, found + data.length)); + }); + on(div, "compositionupdate", function(e) { + input.composing.data = e.data; + }); + on(div, "compositionend", function(e) { + var ours = input.composing; + if (!ours) return; + if (e.data != ours.startData && !/\u200b/.test(e.data)) + ours.data = e.data; + // Need a small delay to prevent other code (input event, + // selection polling) from doing damage when fired right after + // compositionend. + setTimeout(function() { + if (!ours.handled) + input.applyComposition(ours); + if (input.composing == ours) + input.composing = null; + }, 50); + }); + + on(div, "touchstart", function() { + input.forceCompositionEnd(); + }); + + on(div, "input", function() { + if (input.composing) return; + if (!input.pollContent()) + runInOp(input.cm, function() {regChange(cm);}); + }); + + function onCopyCut(e) { + if (cm.somethingSelected()) { + lastCopied = cm.getSelections(); + if (e.type == "cut") cm.replaceSelection("", null, "cut"); + } else if (!cm.options.lineWiseCopyCut) { + return; + } else { + var ranges = copyableRanges(cm); + lastCopied = ranges.text; + if (e.type == "cut") { + cm.operation(function() { + cm.setSelections(ranges.ranges, 0, sel_dontScroll); + cm.replaceSelection("", null, "cut"); + }); + } + } + // iOS exposes the clipboard API, but seems to discard content inserted into it + if (e.clipboardData && !ios) { + e.preventDefault(); + e.clipboardData.clearData(); + e.clipboardData.setData("text/plain", lastCopied.join("\n")); + } else { + // 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.join("\n"); + var hadFocus = document.activeElement; + selectInput(te); + setTimeout(function() { + cm.display.lineSpace.removeChild(kludge); + hadFocus.focus(); + }, 50); + } + } + on(div, "copy", onCopyCut); + on(div, "cut", onCopyCut); + }, + + prepareSelection: function() { + var result = prepareSelection(this.cm, false); + result.focus = this.cm.state.focused; + return result; + }, + + showSelection: function(info) { + if (!info || !this.cm.display.view.length) return; + if (info.focus) this.showPrimarySelection(); + this.showMultipleSelections(info); + }, + + showPrimarySelection: function() { + var sel = window.getSelection(), prim = this.cm.doc.sel.primary(); + var curAnchor = domToPos(this.cm, sel.anchorNode, sel.anchorOffset); + var curFocus = domToPos(this.cm, sel.focusNode, sel.focusOffset); + if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad && + cmp(minPos(curAnchor, curFocus), prim.from()) == 0 && + cmp(maxPos(curAnchor, curFocus), prim.to()) == 0) + return; + + var start = posToDOM(this.cm, prim.from()); + var end = posToDOM(this.cm, prim.to()); + if (!start && !end) return; + + var view = this.cm.display.view; + var old = sel.rangeCount && sel.getRangeAt(0); + if (!start) { + start = {node: view[0].measure.map[2], offset: 0}; + } else if (!end) { // FIXME dangerously hacky + 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]}; + } + + try { var 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) { + sel.removeAllRanges(); + sel.addRange(rng); + if (old && sel.anchorNode == null) sel.addRange(old); + else if (gecko) this.startGracePeriod(); + } + this.rememberSelection(); + }, + + startGracePeriod: function() { + var input = this; + clearTimeout(this.gracePeriod); + this.gracePeriod = setTimeout(function() { + input.gracePeriod = false; + if (input.selectionChanged()) + input.cm.operation(function() { input.cm.curOp.selectionChanged = true; }); + }, 20); + }, + + showMultipleSelections: function(info) { + removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors); + removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection); + }, + + rememberSelection: function() { + var sel = window.getSelection(); + this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset; + this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset; + }, + + selectionInEditor: function() { + var sel = window.getSelection(); + if (!sel.rangeCount) return false; + var node = sel.getRangeAt(0).commonAncestorContainer; + return contains(this.div, node); + }, + + focus: function() { + if (this.cm.options.readOnly != "nocursor") this.div.focus(); + }, + blur: function() { this.div.blur(); }, + getField: function() { return this.div; }, + + supportsTouch: function() { return true; }, + + receivedFocus: function() { + var input = this; + if (this.selectionInEditor()) + this.pollSelection(); + else + runInOp(this.cm, function() { 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); + }, + + selectionChanged: function() { + var sel = window.getSelection(); + return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset || + sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset; + }, + + pollSelection: function() { + if (!this.composing && !this.gracePeriod && this.selectionChanged()) { + var sel = window.getSelection(), cm = this.cm; + 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; + }); + } + }, + + pollContent: function() { + var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary(); + var from = sel.from(), to = sel.to(); + if (from.line < display.viewFrom || to.line > display.viewTo - 1) return false; + + var fromIndex; + if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) { + var fromLine = lineNo(display.view[0].line); + var fromNode = display.view[0].node; + } else { + var fromLine = lineNo(display.view[fromIndex].line); + var fromNode = display.view[fromIndex - 1].node.nextSibling; + } + var toIndex = findViewIndex(cm, to.line); + if (toIndex == display.view.length - 1) { + var toLine = display.viewTo - 1; + var toNode = display.lineDiv.lastChild; + } else { + var toLine = lineNo(display.view[toIndex + 1].line) - 1; + var toNode = display.view[toIndex + 1].node.previousSibling; + } + + 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; + + newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd); + newText[0] = newText[0].slice(cutFront); + + 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; + } + }, + + ensurePolled: function() { + this.forceCompositionEnd(); + }, + reset: function() { + this.forceCompositionEnd(); + }, + forceCompositionEnd: function() { + if (!this.composing || this.composing.handled) return; + this.applyComposition(this.composing); + this.composing.handled = true; + this.div.blur(); + this.div.focus(); + }, + applyComposition: function(composing) { + if (composing.data && composing.data != composing.startData) + operation(this.cm, applyTextInput)(this.cm, composing.data, 0, composing.sel); + }, + + setUneditable: function(node) { + node.setAttribute("contenteditable", "false"); + }, + + onKeyPress: function(e) { + e.preventDefault(); + operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0); + }, + + onContextMenu: nothing, + resetPosition: nothing, + + needsContentAttribute: true + }, ContentEditableInput.prototype); + + 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), 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 badPos(pos, bad) { if (bad) pos.bad = true; return pos; } + + 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 = offset; before; before = before.previousSibling) { + found = find(before, before.firstChild, -1); + if (found) + return badPos(Pos(found.line, found.ch + dist), bad); + else + dist += after.textContent.length; + } + } + + function domTextBetween(cm, from, to, fromLine, toLine) { + var text = "", closing = false, lineSep = cm.doc.lineSeparator(); + function recognizeMarker(id) { return function(marker) { return marker.id == id; }; } + function walk(node) { + if (node.nodeType == 1) { + var cmText = node.getAttribute("cm-text"); + if (cmText != null) { + if (cmText == "") cmText = node.textContent.replace(/\u200b/g, ""); + text += 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())) + text += getBetween(cm.doc, range.from, range.to).join(lineSep); + return; + } + if (node.getAttribute("contenteditable") == "false") return; + for (var i = 0; i < node.childNodes.length; i++) + walk(node.childNodes[i]); + if (/^(pre|div|p)$/i.test(node.nodeName)) + closing = true; + } else if (node.nodeType == 3) { + var val = node.nodeValue; + if (!val) return; + if (closing) { + text += lineSep; + closing = false; + } + text += val; + } + } + for (;;) { + walk(from); + if (from == to) break; + from = from.nextSibling; + } + return text; + } + + CodeMirror.inputStyles = {"textarea": TextareaInput, "contenteditable": ContentEditableInput}; + + // SELECTION / CURSOR + + // 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). + function Selection(ranges, primIndex) { + this.ranges = ranges; + this.primIndex = primIndex; + } + + Selection.prototype = { + primary: function() { return this.ranges[this.primIndex]; }, + 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 (cmp(here.anchor, there.anchor) != 0 || cmp(here.head, there.head) != 0) return false; + } + return true; + }, + deepCopy: function() { + for (var out = [], 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); + }, + somethingSelected: function() { + for (var i = 0; i < this.ranges.length; i++) + if (!this.ranges[i].empty()) return true; + return false; + }, + 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; + } + }; + + function Range(anchor, head) { + this.anchor = anchor; this.head = head; + } + + Range.prototype = { + from: function() { return minPos(this.anchor, this.head); }, + to: function() { return maxPos(this.anchor, this.head); }, + 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(ranges, primIndex) { + 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]; + if (cmp(prev.to(), cur.from()) >= 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); + } + + // 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 isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size;} + function clipPosArray(doc, array) { + for (var out = [], i = 0; i < array.length; i++) out[i] = clipPos(doc, array[i]); + return out; + } + + // SELECTION UPDATES + + // 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(doc, range, head, other) { + if (doc.cm && doc.cm.display.shift || doc.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) { + setSelection(doc, new Selection([extendRange(doc, doc.sel.primary(), head, other)], 0), options); + } + + // Extend all selections (pos is an array of selections with length + // equal the number of selections) + function extendSelections(doc, heads, options) { + for (var out = [], i = 0; i < doc.sel.ranges.length; i++) + out[i] = extendRange(doc, doc.sel.ranges[i], heads[i], null); + var newSel = normalizeSelection(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(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) { + 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)); + } + }; + signal(doc, "beforeSelectionChange", doc, obj); + if (doc.cm) signal(doc.cm, "beforeSelectionChange", doc.cm, obj); + if (obj.ranges != sel.ranges) return normalizeSelection(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); + + 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 = 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), sel_dontScroll); + } + + // 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 newAnchor = skipAtomic(doc, range.anchor, bias, mayClear); + var newHead = skipAtomic(doc, range.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(out, sel.primIndex) : sel; + } + + // Ensure a given position is not inside an atomic range. + function skipAtomic(doc, pos, bias, mayClear) { + var flipped = false, curPos = pos; + var dir = bias || 1; + doc.cantEdit = false; + search: for (;;) { + var line = getLine(doc, curPos.line); + if (line.markedSpans) { + for (var i = 0; i < line.markedSpans.length; ++i) { + var sp = line.markedSpans[i], m = sp.marker; + if ((sp.from == null || (m.inclusiveLeft ? sp.from <= curPos.ch : sp.from < curPos.ch)) && + (sp.to == null || (m.inclusiveRight ? sp.to >= curPos.ch : sp.to > curPos.ch))) { + if (mayClear) { + signal(m, "beforeCursorEnter"); + if (m.explicitlyCleared) { + if (!line.markedSpans) break; + else {--i; continue;} + } + } + if (!m.atomic) continue; + var newPos = m.find(dir < 0 ? -1 : 1); + if (cmp(newPos, curPos) == 0) { + newPos.ch += dir; + if (newPos.ch < 0) { + if (newPos.line > doc.first) newPos = clipPos(doc, Pos(newPos.line - 1)); + else newPos = null; + } else if (newPos.ch > line.text.length) { + if (newPos.line < doc.first + doc.size - 1) newPos = Pos(newPos.line + 1, 0); + else newPos = null; + } + if (!newPos) { + if (flipped) { + // Driven in a corner -- no valid cursor position found at all + // -- try again *with* clearing, if we didn't already + if (!mayClear) return skipAtomic(doc, pos, bias, true); + // Otherwise, turn off editing until further notice, and return the start of the doc + doc.cantEdit = true; + return Pos(doc.first, 0); + } + flipped = true; newPos = pos; dir = -dir; + } + } + curPos = newPos; + continue search; + } + } + } + return curPos; + } + } + + // SELECTION DRAWING + + function updateSelection(cm) { + cm.display.input.showSelection(cm.display.input.prepareSelection()); + } + + function prepareSelection(cm, primary) { + 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 === false && i == doc.sel.primIndex) continue; + var range = doc.sel.ranges[i]; + 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"; + } + } + + // 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; + + 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; top: " + top + "px; width: " + (width == null ? rightSide - left : width) + + "px; 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); + } + + iterateBidiSections(getOrder(lineObj), fromArg || 0, toArg == null ? lineLen : toArg, function(from, to, dir) { + var leftPos = coords(from, "left"), rightPos, left, right; + if (from == to) { + rightPos = leftPos; + left = right = leftPos.left; + } else { + rightPos = coords(to - 1, "right"); + if (dir == "rtl") { var tmp = leftPos; leftPos = rightPos; rightPos = tmp; } + left = leftPos.left; + right = rightPos.right; + } + if (fromArg == null && from == 0) left = leftSide; + if (rightPos.top - leftPos.top > 3) { // Different lines, draw top part + add(left, leftPos.top, null, leftPos.bottom); + left = leftSide; + if (leftPos.bottom < rightPos.top) add(left, leftPos.bottom, null, rightPos.top); + } + if (toArg == null && to == lineLen) right = rightSide; + if (!start || leftPos.top < start.top || leftPos.top == start.top && leftPos.left < start.left) + start = leftPos; + if (!end || rightPos.bottom > end.bottom || rightPos.bottom == end.bottom && rightPos.right > end.right) + end = rightPos; + if (left < leftSide + 1) left = leftSide; + add(left, rightPos.top, right - left, rightPos.bottom); + }); + 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() { + display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden"; + }, cm.options.cursorBlinkRate); + else if (cm.options.cursorBlinkRate < 0) + display.cursorDiv.style.visibility = "hidden"; + } + + // HIGHLIGHT WORKER + + function startWorker(cm, time) { + if (cm.doc.mode.startState && cm.doc.frontier < cm.display.viewTo) + cm.state.highlight.set(time, bind(highlightWorker, cm)); + } + + function highlightWorker(cm) { + var doc = cm.doc; + if (doc.frontier < doc.first) doc.frontier = doc.first; + if (doc.frontier >= cm.display.viewTo) return; + var end = +new Date + cm.options.workTime; + var state = copyState(doc.mode, getStateBefore(cm, doc.frontier)); + var changedLines = []; + + doc.iter(doc.frontier, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function(line) { + if (doc.frontier >= cm.display.viewFrom) { // Visible + var oldStyles = line.styles, tooLong = line.text.length > cm.options.maxHighlightLength; + var highlighted = highlightLine(cm, line, tooLong ? copyState(doc.mode, state) : state, true); + 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(doc.frontier); + line.stateAfter = tooLong ? state : copyState(doc.mode, state); + } else { + if (line.text.length <= cm.options.maxHighlightLength) + processLine(cm, line.text, state); + line.stateAfter = doc.frontier % 5 == 0 ? copyState(doc.mode, state) : null; + } + ++doc.frontier; + if (+new Date > end) { + startWorker(cm, cm.options.workDelay); + return true; + } + }); + if (changedLines.length) runInOp(cm, function() { + for (var i = 0; i < changedLines.length; i++) + regLineChange(cm, changedLines[i], "text"); + }); + } + + // 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); + if (line.stateAfter && (!precise || search <= doc.frontier)) return search; + var indented = countColumn(line.text, null, cm.options.tabSize); + if (minline == null || minindent > indented) { + minline = search - 1; + minindent = indented; + } + } + return minline; + } + + function getStateBefore(cm, n, precise) { + var doc = cm.doc, display = cm.display; + if (!doc.mode.startState) return true; + var pos = findStartLine(cm, n, precise), state = pos > doc.first && getLine(doc, pos-1).stateAfter; + if (!state) state = startState(doc.mode); + else state = copyState(doc.mode, state); + doc.iter(pos, n, function(line) { + processLine(cm, line.text, state); + var save = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo; + line.stateAfter = save ? copyState(doc.mode, state) : null; + ++pos; + }); + if (precise) doc.frontier = pos; + return state; + } + + // 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")); + 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 = 0; i < lineView.rest.length; i++) + if (lineNo(lineView.rest[i]) > lineN) + return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i], 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; + // 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) { + var 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 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 = 0; i < 4; i++) { // 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 if (ie && cm.options.lineWrapping) { + var rects = range(node, start, end).getClientRects(); + if (rects.length) + rect = rects[bias == "right" ? rects.length - 1 : 0]; + else + rect = nullRect; + } else { + rect = range(node, start, end).getBoundingClientRect() || nullRect; + } + 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; + for (var i = 0; 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() { return window.pageXOffset || (document.documentElement || document.body).scrollLeft; } + function pageScrollY() { return window.pageYOffset || (document.documentElement || document.body).scrollTop; } + + // 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) { + if (lineObj.widgets) for (var i = 0; i < lineObj.widgets.length; ++i) if (lineObj.widgets[i].above) { + var size = widgetHeight(lineObj.widgets[i]); + rect.top += size; rect.bottom += size; + } + 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. + 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); + } + function getBidi(ch, partPos) { + var part = order[partPos], right = part.level % 2; + if (ch == bidiLeft(part) && partPos && part.level < order[partPos - 1].level) { + part = order[--partPos]; + ch = bidiRight(part) - (part.level % 2 ? 0 : 1); + right = true; + } else if (ch == bidiRight(part) && partPos < order.length - 1 && part.level < order[partPos + 1].level) { + part = order[++partPos]; + ch = bidiLeft(part) - part.level % 2; + right = false; + } + if (right && ch == part.to && ch > part.from) return get(ch - 1); + return get(ch, right); + } + var order = getOrder(lineObj), ch = pos.ch; + if (!order) return get(ch); + var partPos = getBidiPartAt(order, ch); + var val = getBidi(ch, partPos); + if (bidiOther != null) val.other = getBidi(ch, bidiOther); + 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, outside, xRel) { + var pos = Pos(line, ch); + pos.xRel = xRel; + if (outside) pos.outside = true; + 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, true, -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, true, 1); + if (x < 0) x = 0; + + var lineObj = getLine(doc, lineN); + for (;;) { + var found = coordsCharInner(cm, lineObj, lineN, x, y); + var merged = collapsedSpanAtEnd(lineObj); + var mergedPos = merged && merged.find(0, true); + if (merged && (found.ch > mergedPos.from.ch || found.ch == mergedPos.from.ch && found.xRel > 0)) + lineN = lineNo(lineObj = mergedPos.to.line); + else + return found; + } + } + + function coordsCharInner(cm, lineObj, lineNo, x, y) { + var innerOff = y - heightAtLine(lineObj); + var wrongLine = false, adjust = 2 * cm.display.wrapper.clientWidth; + var preparedMeasure = prepareMeasureForLine(cm, lineObj); + + function getX(ch) { + var sp = cursorCoords(cm, Pos(lineNo, ch), "line", lineObj, preparedMeasure); + wrongLine = true; + if (innerOff > sp.bottom) return sp.left - adjust; + else if (innerOff < sp.top) return sp.left + adjust; + else wrongLine = false; + return sp.left; + } + + var bidi = getOrder(lineObj), dist = lineObj.text.length; + var from = lineLeft(lineObj), to = lineRight(lineObj); + var fromX = getX(from), fromOutside = wrongLine, toX = getX(to), toOutside = wrongLine; + + if (x > toX) return PosWithInfo(lineNo, to, toOutside, 1); + // Do a binary search between these bounds. + for (;;) { + if (bidi ? to == from || to == moveVisually(lineObj, from, 1) : to - from <= 1) { + var ch = x < fromX || x - fromX <= toX - x ? from : to; + var xDiff = x - (ch == from ? fromX : toX); + while (isExtendingChar(lineObj.text.charAt(ch))) ++ch; + var pos = PosWithInfo(lineNo, ch, ch == from ? fromOutside : toOutside, + xDiff < -1 ? -1 : xDiff > 1 ? 1 : 0); + return pos; + } + var step = Math.ceil(dist / 2), middle = from + step; + if (bidi) { + middle = from; + for (var i = 0; i < step; ++i) middle = moveVisually(lineObj, middle, 1); + } + var middleX = getX(middle); + if (middleX > x) {to = middle; toX = middleX; if (toOutside = wrongLine) toX += 1000; dist = step;} + else {from = middle; fromX = middleX; fromOutside = wrongLine; dist -= step;} + } + } + + var measureText; + // Compute the default text height. + function textHeight(display) { + if (display.cachedTextHeight != null) return display.cachedTextHeight; + if (measureText == null) { + measureText = elt("pre"); + // 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]); + removeChildrenAndAdd(display.measure, pre); + var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10; + if (width > 2) display.cachedCharWidth = width; + return width || 10; + } + + // OPERATIONS + + // 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 operationGroup = null; + + 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: null, // 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 + }; + if (operationGroup) { + operationGroup.ops.push(cm.curOp); + } else { + cm.curOp.ownsGroup = operationGroup = { + ops: [cm.curOp], + 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); + } + + // Finish an operation, updating the display and signalling delayed events + function endOperation(cm) { + var op = cm.curOp, group = op.ownsGroup; + if (!group) return; + + try { fireCallbacksForOps(group); } + finally { + operationGroup = null; + 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 = 0; i < ops.length; i++) // Write DOM (maybe) + endOperation_W1(ops[i]); + for (var i = 0; i < ops.length; i++) // Read DOM + endOperation_R2(ops[i]); + for (var i = 0; i < ops.length; i++) // Write DOM (maybe) + endOperation_W2(ops[i]); + for (var i = 0; i < ops.length; i++) // Read DOM + endOperation_finish(ops[i]); + } + + 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; + } + + if (op.preparedSelection) + cm.display.input.showSelection(op.preparedSelection); + if (op.updatedDisplay) + setDocumentHeight(cm, op.barMeasure); + if (op.updatedDisplay || op.startHeight != cm.doc.height) + updateScrollbars(cm, op.barMeasure); + + if (op.selectionChanged) restartBlink(cm); + + if (cm.state.focused && op.updateInput) + cm.display.input.reset(op.typing); + if (op.focus && op.focus == activeElt()) 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 && (display.scroller.scrollTop != op.scrollTop || op.forceScroll)) { + doc.scrollTop = Math.max(0, Math.min(display.scroller.scrollHeight - display.scroller.clientHeight, op.scrollTop)); + display.scrollbars.setScrollTop(doc.scrollTop); + display.scroller.scrollTop = doc.scrollTop; + } + if (op.scrollLeft != null && (display.scroller.scrollLeft != op.scrollLeft || op.forceScroll)) { + doc.scrollLeft = Math.max(0, Math.min(display.scroller.scrollWidth - displayWidth(cm), op.scrollLeft)); + display.scrollbars.setScrollLeft(doc.scrollLeft); + display.scroller.scrollLeft = doc.scrollLeft; + alignHorizontally(cm); + } + // If we need to scroll a specific position into view, do so. + if (op.scrollToPos) { + var coords = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from), + clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin); + if (op.scrollToPos.isCursor && cm.state.focused) maybeScrollWindow(cm, coords); + } + + // 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 = 0; i < unhidden.length; ++i) + if (unhidden[i].lines.length) signal(unhidden[i], "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); } + }; + } + + // VIEW TRACKING + + // 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; + } + + // 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 = viewCuttingPoint(cm, from, from, -1); + if (cut) { + display.view = display.view.slice(0, cut.index); + display.viewTo = cut.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; + } + + // 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; + } + } + + 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}; + for (var i = 0, n = cm.display.viewFrom; 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; + } + + // EVENT HANDLERS + + // 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) { 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. + if (!captureRightClick) on(d.scroller, "contextmenu", function(e) {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() {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 (!isMouseLikeTouchEvent(e)) { + 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) { + setScrollTop(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){onScrollWheel(cm, e);}); + on(d.scroller, "DOMMouseScroll", function(e){onScrollWheel(cm, e);}); + + // Prevent wrapper from ever scrolling + on(d.wrapper, "scroll", function() { 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){onDragStart(cm, e);}, + drop: operation(cm, onDrop), + leave: function() {clearDragCursor(cm);} + }; + + var inp = d.input.getField(); + on(inp, "keyup", function(e) { onKeyUp.call(cm, e); }); + on(inp, "keydown", operation(cm, onKeyDown)); + on(inp, "keypress", operation(cm, onKeyPress)); + on(inp, "focus", bind(onFocus, cm)); + on(inp, "blur", bind(onBlur, cm)); + } + + function dragDropChanged(cm, value, old) { + var wasOn = old && old != CodeMirror.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); + } + } + + // Called when the window resizes + function onResize(cm) { + var d = cm.display; + if (d.lastWrapHeight == d.wrapper.clientHeight && d.lastWrapWidth == d.wrapper.clientWidth) + return; + // Might be a text scaling operation, clear size caches. + d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null; + d.scrollbarsClipped = false; + cm.setSize(); + } + + // MOUSE EVENTS + + // 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; + } + } + + // 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) { return null; } + var coords = coordsChar(cm, x, y), line; + if (forRect && coords.xRel == 1 && (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; + } + + // 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 (display.activeTouch && display.input.supportsTouch() || signalDOMEvent(cm, e)) return; + 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(){display.scroller.draggable = true;}, 100); + } + return; + } + if (clickInGutter(cm, e)) return; + var start = posFromMouse(cm, e); + window.focus(); + + switch (e_button(e)) { + case 1: + // #3261: make sure, that we're not starting a second selection + if (cm.state.selectingText) + cm.state.selectingText(e); + else if (start) + leftButtonDown(cm, e, start); + else if (e_target(e) == display.scroller) + e_preventDefault(e); + break; + case 2: + if (webkit) cm.state.lastMiddleDown = +new Date; + if (start) extendSelection(cm.doc, start); + setTimeout(function() {display.input.focus();}, 20); + e_preventDefault(e); + break; + case 3: + if (captureRightClick) onContextMenu(cm, e); + else delayBlurEvent(cm); + break; + } + } + + var lastClick, lastDoubleClick; + function leftButtonDown(cm, e, start) { + if (ie) setTimeout(bind(ensureFocus, cm), 0); + else cm.curOp.focus = activeElt(); + + var now = +new Date, type; + if (lastDoubleClick && lastDoubleClick.time > now - 400 && cmp(lastDoubleClick.pos, start) == 0) { + type = "triple"; + } else if (lastClick && lastClick.time > now - 400 && cmp(lastClick.pos, start) == 0) { + type = "double"; + lastDoubleClick = {time: now, pos: start}; + } else { + type = "single"; + lastClick = {time: now, pos: start}; + } + + var sel = cm.doc.sel, modifier = mac ? e.metaKey : e.ctrlKey, contained; + if (cm.options.dragDrop && dragAndDrop && !isReadOnly(cm) && + type == "single" && (contained = sel.contains(start)) > -1 && + (cmp((contained = sel.ranges[contained]).from(), start) < 0 || start.xRel > 0) && + (cmp(contained.to(), start) > 0 || start.xRel < 0)) + leftButtonStartDrag(cm, e, start, modifier); + else + leftButtonSelect(cm, e, start, type, modifier); + } + + // 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, e, start, modifier) { + var display = cm.display, startTime = +new Date; + var dragEnd = operation(cm, function(e2) { + if (webkit) display.scroller.draggable = false; + cm.state.draggingText = false; + off(document, "mouseup", dragEnd); + off(display.scroller, "drop", dragEnd); + if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) { + e_preventDefault(e2); + if (!modifier && +new Date - 200 < startTime) + extendSelection(cm.doc, start); + // Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081) + if (webkit || ie && ie_version == 9) + setTimeout(function() {document.body.focus(); display.input.focus();}, 20); + else + display.input.focus(); + } + }); + // Let the drag handler handle this. + if (webkit) display.scroller.draggable = true; + cm.state.draggingText = dragEnd; + // IE's approach to draggable + if (display.scroller.dragDrop) display.scroller.dragDrop(); + on(document, "mouseup", dragEnd); + on(display.scroller, "drop", dragEnd); + } + + // Normal selection, as opposed to text dragging. + function leftButtonSelect(cm, e, start, type, addNew) { + var display = cm.display, doc = cm.doc; + e_preventDefault(e); + + var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges; + if (addNew && !e.shiftKey) { + 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 (e.altKey) { + type = "rect"; + if (!addNew) ourRange = new Range(start, start); + start = posFromMouse(cm, e, true, true); + ourIndex = -1; + } else if (type == "double") { + var word = cm.findWordAt(start); + if (cm.display.shift || doc.extend) + ourRange = extendRange(doc, ourRange, word.anchor, word.head); + else + ourRange = word; + } else if (type == "triple") { + var line = new Range(Pos(start.line, 0), clipPos(doc, Pos(start.line + 1, 0))); + if (cm.display.shift || doc.extend) + ourRange = extendRange(doc, ourRange, line.anchor, line.head); + else + ourRange = line; + } else { + ourRange = extendRange(doc, ourRange, start); + } + + if (!addNew) { + ourIndex = 0; + setSelection(doc, new Selection([ourRange], 0), sel_mouse); + startSel = doc.sel; + } else if (ourIndex == -1) { + ourIndex = ranges.length; + setSelection(doc, normalizeSelection(ranges.concat([ourRange]), ourIndex), + {scroll: false, origin: "*mouse"}); + } else if (ranges.length > 1 && ranges[ourIndex].empty() && type == "single" && !e.shiftKey) { + setSelection(doc, normalizeSelection(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 (type == "rect") { + 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(startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex), + {origin: "*mouse", scroll: false}); + cm.scrollIntoView(pos); + } else { + var oldRange = ourRange; + var anchor = oldRange.anchor, head = pos; + if (type != "single") { + if (type == "double") + var range = cm.findWordAt(pos); + else + var range = new Range(Pos(pos.line, 0), clipPos(doc, Pos(pos.line + 1, 0))); + 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 = startSel.ranges.slice(0); + ranges[ourIndex] = new Range(clipPos(doc, anchor), head); + setSelection(doc, normalizeSelection(ranges, 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, type == "rect"); + 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; + e_preventDefault(e); + display.input.focus(); + off(document, "mousemove", move); + off(document, "mouseup", up); + doc.history.lastSelOrigin = null; + } + + var move = operation(cm, function(e) { + if (!e_button(e)) done(e); + else extend(e); + }); + var up = operation(cm, done); + cm.state.selectingText = up; + on(document, "mousemove", move); + on(document, "mouseup", up); + } + + // Determines whether an event happened in the gutter, and fires the + // handlers for the corresponding event. + function gutterEvent(cm, e, type, prevent, signalfn) { + try { var mX = e.clientX, mY = e.clientY; } + catch(e) { 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.options.gutters.length; ++i) { + var g = display.gutters.childNodes[i]; + if (g && g.getBoundingClientRect().right >= mX) { + var line = lineAtHeight(cm.doc, mY); + var gutter = cm.options.gutters[i]; + signalfn(cm, type, cm, line, gutter, e); + return e_defaultPrevented(e); + } + } + } + + function clickInGutter(cm, e) { + return gutterEvent(cm, e, "gutterClick", true, signalLater); + } + + // 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 || isReadOnly(cm)) 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 loadFile = function(file, i) { + var reader = new FileReader; + reader.onload = operation(cm, function() { + text[i] = reader.result; + if (++read == n) { + pos = clipPos(cm.doc, pos); + var change = {from: pos, to: pos, + text: cm.doc.splitLines(text.join(cm.doc.lineSeparator())), + origin: "paste"}; + makeChange(cm.doc, change); + setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change))); + } + }); + reader.readAsText(file); + }; + for (var i = 0; i < n; ++i) loadFile(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() {cm.display.input.focus();}, 20); + return; + } + try { + var text = e.dataTransfer.getData("Text"); + if (text) { + if (cm.state.draggingText && !(mac ? e.altKey : e.ctrlKey)) + var selected = cm.listSelections(); + setSelectionNoUndo(cm.doc, simpleSelection(pos, pos)); + if (selected) for (var i = 0; i < selected.length; ++i) + replaceRange(cm.doc, "", selected[i].anchor, selected[i].head, "drag"); + cm.replaceSelection(text, "around", "paste"); + cm.display.input.focus(); + } + } + catch(e){} + } + } + + 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()); + + // 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; + } + } + + // SCROLL EVENTS + + // Sync the scrollable area and scrollbars, ensure the viewport + // covers the visible area. + function setScrollTop(cm, val) { + if (Math.abs(cm.doc.scrollTop - val) < 2) return; + cm.doc.scrollTop = val; + if (!gecko) updateDisplaySimple(cm, {top: val}); + if (cm.display.scroller.scrollTop != val) cm.display.scroller.scrollTop = val; + cm.display.scrollbars.setScrollTop(val); + if (gecko) updateDisplaySimple(cm); + startWorker(cm, 100); + } + // Sync scroller and scrollbar, ensure the gutter elements are + // aligned. + function setScrollLeft(cm, val, isScroller) { + if (isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) return; + val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth); + cm.doc.scrollLeft = val; + alignHorizontally(cm); + if (cm.display.scroller.scrollLeft != val) cm.display.scroller.scrollLeft = val; + cm.display.scrollbars.setScrollLeft(val); + } + + // 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; + + var wheelEventDelta = function(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}; + }; + CodeMirror.wheelEventPixels = function(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 + if (!(dx && scroll.scrollWidth > scroll.clientWidth || + dy && scroll.scrollHeight > scroll.clientHeight)) 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) + setScrollTop(cm, Math.max(0, Math.min(scroll.scrollTop + dy * wheelPixelsPerUnit, scroll.scrollHeight - scroll.clientHeight))); + setScrollLeft(cm, Math.max(0, Math.min(scroll.scrollLeft + dx * wheelPixelsPerUnit, scroll.scrollWidth - scroll.clientWidth))); + 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; + } + } + } + + // KEY EVENTS + + // 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 (isReadOnly(cm)) 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); + } + + var stopSeq = new Delayed; + function dispatchKey(cm, name, e, handle) { + var seq = cm.state.keySeq; + if (seq) { + if (isModifierKey(name)) return "handled"; + stopSeq.set(50, function() { + if (cm.state.keySeq == seq) { + cm.state.keySeq = null; + cm.display.input.reset(); + } + }); + name = seq + " " + name; + } + 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); + } + + if (seq && !result && /\'$/.test(name)) { + e_preventDefault(e); + return true; + } + 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; + 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"); + } + + // 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 (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); + if (handleCharBinding(cm, e, ch)) return; + cm.display.input.onKeyPress(e); + } + + // FOCUS/BLUR EVENTS + + function delayBlurEvent(cm) { + cm.state.delayingBlurEvent = true; + setTimeout(function() { + if (cm.state.delayingBlurEvent) { + cm.state.delayingBlurEvent = false; + onBlur(cm); + } + }, 100); + } + + function onFocus(cm) { + if (cm.state.delayingBlurEvent) cm.state.delayingBlurEvent = false; + + if (cm.options.readOnly == "nocursor") return; + if (!cm.state.focused) { + signal(cm, "focus", cm); + 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() { cm.display.input.reset(true); }, 20); // Issue #1730 + } + cm.display.input.receivedFocus(); + } + restartBlink(cm); + } + function onBlur(cm) { + if (cm.state.delayingBlurEvent) return; + + if (cm.state.focused) { + signal(cm, "blur", cm); + 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); + } + + // 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; + cm.display.input.onContextMenu(e); + } + + function contextMenuInGutter(cm, e) { + if (!hasHandler(cm, "gutterContextMenu")) return false; + return gutterEvent(cm, e, "gutterContextMenu", false, signal); + } + + // UPDATING + + // Compute the position of the end of a change (its 'to' property + // refers to the pre-change end). + var changeEnd = CodeMirror.changeEnd = function(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(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); + } + + // 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() { this.canceled = true; } + }; + if (update) obj.update = function(from, to, text, origin) { + if (from) this.from = clipPos(doc, from); + if (to) this.to = clipPos(doc, to); + if (text) this.text = text; + if (origin !== undefined) this.origin = origin; + }; + signal(doc, "beforeChange", doc, obj); + if (doc.cm) signal(doc.cm, "beforeChange", doc.cm, obj); + + if (obj.canceled) 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}); + } 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) { + if (doc.cm && doc.cm.state.suppressEdits) 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) + for (var i = 0; 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 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"); + + for (var i = event.changes.length - 1; i >= 0; --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)); + }); + } + } + + // 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); + } + + // 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; + } + + // Adjust frontier, schedule worker + doc.frontier = Math.min(doc.frontier, 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) { + if (!to) to = from; + if (cmp(to, from) < 0) { var tmp = to; to = from; from = tmp; } + if (typeof code == "string") code = doc.splitLines(code); + makeChange(doc, {from: from, to: to, text: code, origin: origin}); + } + + // 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, coords) { + if (signalDOMEvent(cm, "scrollCursorIntoView")) return; + + var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null; + if (coords.top + box.top < 0) doScroll = true; + else if (coords.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) doScroll = false; + if (doScroll != null && !phantom) { + var scrollNode = elt("div", "\u200b", null, "position: absolute; top: " + + (coords.top - display.viewOffset - paddingTop(cm.display)) + "px; height: " + + (coords.bottom - coords.top + scrollGap(cm) + display.barHeight) + "px; left: " + + coords.left + "px; width: 2px;"); + 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; + for (var limit = 0; limit < 5; limit++) { + var changed = false, coords = cursorCoords(cm, pos); + var endCoords = !end || end == pos ? coords : cursorCoords(cm, end); + var scrollPos = calculateScrollPos(cm, Math.min(coords.left, endCoords.left), + Math.min(coords.top, endCoords.top) - margin, + Math.max(coords.left, endCoords.left), + Math.max(coords.bottom, endCoords.bottom) + margin); + var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft; + if (scrollPos.scrollTop != null) { + setScrollTop(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 coords; + } + + // Scroll a given set of coordinates into view (immediately). + function scrollIntoView(cm, x1, y1, x2, y2) { + var scrollPos = calculateScrollPos(cm, x1, y1, x2, y2); + if (scrollPos.scrollTop != null) setScrollTop(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, x1, y1, x2, y2) { + var display = cm.display, snapMargin = textHeight(cm.display); + if (y1 < 0) y1 = 0; + var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop; + var screen = displayHeight(cm), result = {}; + if (y2 - y1 > screen) y2 = y1 + screen; + var docBottom = cm.doc.height + paddingVert(display); + var atTop = y1 < snapMargin, atBottom = y2 > docBottom - snapMargin; + if (y1 < screentop) { + result.scrollTop = atTop ? 0 : y1; + } else if (y2 > screentop + screen) { + var newTop = Math.min(y1, (atBottom ? docBottom : y2) - screen); + if (newTop != screentop) result.scrollTop = newTop; + } + + var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft; + var screenw = displayWidth(cm) - (cm.options.fixedGutter ? display.gutters.offsetWidth : 0); + var tooWide = x2 - x1 > screenw; + if (tooWide) x2 = x1 + screenw; + if (x1 < 10) + result.scrollLeft = 0; + else if (x1 < screenleft) + result.scrollLeft = Math.max(0, x1 - (tooWide ? 0 : 10)); + else if (x2 > screenw + screenleft - 3) + result.scrollLeft = x2 + (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 addToScrollPos(cm, left, top) { + if (left != null || top != null) resolveScrollToPos(cm); + if (left != null) + cm.curOp.scrollLeft = (cm.curOp.scrollLeft == null ? cm.doc.scrollLeft : cm.curOp.scrollLeft) + left; + if (top != null) + 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(), from = cur, to = cur; + if (!cm.options.lineWrapping) { + from = cur.ch ? Pos(cur.line, cur.ch - 1) : cur; + to = Pos(cur.line, cur.ch + 1); + } + cm.curOp.scrollToPos = {from: from, to: to, margin: cm.options.cursorScrollMargin, isCursor: true}; + } + + // 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); + var sPos = calculateScrollPos(cm, Math.min(from.left, to.left), + Math.min(from.top, to.top) - range.margin, + Math.max(from.right, to.right), + Math.max(from.bottom, to.bottom) + range.margin); + cm.scrollTo(sPos.scrollLeft, sPos.scrollTop); + } + } + + // API UTILITIES + + // 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 = getStateBefore(cm, n); + } + + 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 = 0; i < doc.sel.ranges.length; i++) { + var range = doc.sel.ranges[i]; + if (range.head.line == n && range.head.ch < curSpaceString.length) { + var pos = Pos(n, curSpaceString.length); + replaceOneSelection(doc, i, new Range(pos, pos)); + break; + } + } + } + } + + // 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; + } + + // 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); + }); + } + + // Used for horizontal relative motion. Dir is -1 or 1 (left or + // right), unit can be "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 line = pos.line, ch = pos.ch, origDir = dir; + var lineObj = getLine(doc, line); + var possible = true; + function findNextLine() { + var l = line + dir; + if (l < doc.first || l >= doc.first + doc.size) return (possible = false); + line = l; + return lineObj = getLine(doc, l); + } + function moveOnce(boundToLine) { + var next = (visually ? moveVisually : moveLogically)(lineObj, ch, dir, true); + if (next == null) { + if (!boundToLine && findNextLine()) { + if (visually) ch = (dir < 0 ? lineRight : lineLeft)(lineObj); + else ch = dir < 0 ? lineObj.text.length : 0; + } else return (possible = false); + } else ch = next; + return true; + } + + if (unit == "char") 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(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();} + break; + } + + if (type) sawType = type; + if (dir > 0 && !moveOnce(!first)) break; + } + } + var result = skipAtomic(doc, Pos(line, ch), origDir, true); + if (!possible) 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); + y = pos.top + dir * (pageSize - (dir < 0 ? 1.5 : .5) * textHeight(cm.display)); + } else if (unit == "line") { + y = dir > 0 ? pos.bottom + 3 : pos.top - 3; + } + for (;;) { + var 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; + } + + // EDITOR METHODS + + // 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. + + 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); + }, + + 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."); + this.state.overlays.push({mode: mode, modeSpec: spec, opaque: options && options.opaque}); + 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("cm-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 = 0; i < help._global.length; i++) { + var cur = help._global[i]; + 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 getStateBefore(this, line + 1, precise); + }, + + 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) { + 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").top + + (end ? this.doc.height - heightAtLine(lineObj) : 0); + }, + + defaultTextHeight: function() { return textHeight(this.display); }, + defaultCharWidth: function() { return charWidth(this.display); }, + + setGutterMarker: methodOp(function(line, gutterID, value) { + return changeLine(this.doc, line, "gutter", function(line) { + var markers = line.gutterMarkers || (line.gutterMarkers = {}); + markers[gutterID] = value; + if (!value && isEmpty(markers)) line.gutterMarkers = null; + return true; + }); + }), + + clearGutter: methodOp(function(gutterID) { + var cm = this, doc = cm.doc, i = doc.first; + doc.iter(function(line) { + if (line.gutterMarkers && line.gutterMarkers[gutterID]) { + line.gutterMarkers[gutterID] = null; + regLineChange(cm, i, "gutter"); + if (isEmpty(line.gutterMarkers)) line.gutterMarkers = null; + } + ++i; + }); + }), + + lineInfo: function(line) { + if (typeof line == "number") { + if (!isLine(this.doc, line)) return null; + var n = line; + line = getLine(this.doc, line); + if (!line) return null; + } else { + var 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}; + }, + + 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, top, left + node.offsetWidth, top + node.offsetHeight); + }, + + triggerOnKeyDown: methodOp(onKeyDown), + triggerOnKeyPress: methodOp(onKeyPress), + triggerOnKeyUp: onKeyUp, + + 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; } + for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) { + cur = findPosH(this.doc, cur, dir, unit, visually); + if (cur.hitSide) break; + } + return cur; + }, + + moveH: methodOp(function(dir, unit) { + var cm = this; + cm.extendSelectionsBy(function(range) { + if (cm.display.shift || cm.doc.extend || range.empty()) + return findPosH(cm.doc, range.head, dir, unit, cm.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; } + for (var i = 0, cur = clipPos(this.doc, from); 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 cm = this, doc = this.doc, goals = []; + var collapse = !cm.display.shift && !doc.extend && doc.sel.somethingSelected(); + doc.extendSelectionsBy(function(range) { + if (collapse) + return dir < 0 ? range.from() : range.to(); + var headPos = cursorCoords(cm, range.head, "div"); + if (range.goalColumn != null) headPos.left = range.goalColumn; + goals.push(headPos.left); + var pos = findPosV(cm, headPos, dir, unit); + if (unit == "page" && range == doc.sel.primary()) + addToScrollPos(cm, null, charCoords(cm, 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.xRel < 0 || 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(); }, + + scrollTo: methodOp(function(x, y) { + if (x != null || y != null) resolveScrollToPos(this); + if (x != null) this.curOp.scrollLeft = x; + if (y != null) this.curOp.scrollTop = 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) { + resolveScrollToPos(this); + this.curOp.scrollToPos = range; + } else { + var sPos = calculateScrollPos(this, Math.min(range.from.left, range.to.left), + Math.min(range.from.top, range.to.top) - range.margin, + Math.max(range.from.right, range.to.right), + Math.max(range.from.bottom, range.to.bottom) + range.margin); + this.scrollTo(sPos.scrollLeft, sPos.scrollTop); + } + }), + + setSize: methodOp(function(width, height) { + var cm = this; + function interpret(val) { + return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val; + } + if (width != null) cm.display.wrapper.style.width = interpret(width); + if (height != null) cm.display.wrapper.style.height = interpret(height); + if (cm.options.lineWrapping) clearLineMeasurementCache(this); + var lineNo = cm.display.viewFrom; + cm.doc.iter(lineNo, cm.display.viewTo, function(line) { + if (line.widgets) for (var i = 0; i < line.widgets.length; i++) + if (line.widgets[i].noHScroll) { regLineChange(cm, lineNo, "widget"); break; } + ++lineNo; + }); + cm.curOp.forceUpdate = true; + signal(cm, "refresh", this); + }), + + operation: function(f){return runInOp(this, f);}, + + refresh: methodOp(function() { + var oldHeight = this.display.cachedTextHeight; + regChange(this); + this.curOp.forceUpdate = true; + clearCaches(this); + this.scrollTo(this.doc.scrollLeft, this.doc.scrollTop); + updateGutterSpace(this); + if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5) + estimateLineHeights(this); + signal(this, "refresh", this); + }), + + swapDoc: methodOp(function(doc) { + var old = this.doc; + old.cm = null; + attachDoc(this, doc); + clearCaches(this); + this.display.input.reset(); + this.scrollTo(doc.scrollLeft, doc.scrollTop); + this.curOp.forceScroll = true; + signalLater(this, "swapDoc", this, old); + return old; + }), + + 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); + + // OPTION DEFAULTS + + // The default configuration options. + var defaults = CodeMirror.defaults = {}; + // Functions to run when options are changed. + 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; + } + + // Passed to option handlers when there is no old value. + var Init = CodeMirror.Init = {toString: function(){return "CodeMirror.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) { + 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", /[\t\u0000-\u0019\u00ad\u200b-\u200f\u2028\u2029\ufeff]/g, function(cm, val, old) { + cm.state.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g"); + if (old != CodeMirror.Init) cm.refresh(); + }); + option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function(cm) {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("rtlMoveVisually", !windows); + option("wholeLineUpdateBefore", true); + + option("theme", "default", function(cm) { + themeChanged(cm); + guttersChanged(cm); + }, true); + option("keyMap", "default", function(cm, val, old) { + var next = getKeyMap(val); + var prev = old != CodeMirror.Init && getKeyMap(old); + if (prev && prev.detach) prev.detach(cm, next); + if (next.attach) next.attach(cm, prev || null); + }); + option("extraKeys", null); + + option("lineWrapping", false, wrappingChanged, true); + option("gutters", [], function(cm) { + setGuttersForLineNumbers(cm.options); + guttersChanged(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) {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) { + setGuttersForLineNumbers(cm.options); + guttersChanged(cm); + }, true); + option("firstLineNumber", 1, guttersChanged, true); + option("lineNumberFormatter", function(integer) {return integer;}, guttersChanged, true); + option("showCursorWhenSelecting", false, updateSelection, true); + + option("resetSelectionOnContextMenu", true); + option("lineWiseCopyCut", true); + + option("readOnly", false, function(cm, val) { + if (val == "nocursor") { + onBlur(cm); + cm.display.input.blur(); + cm.display.disabled = true; + } else { + cm.display.disabled = false; + if (!val) cm.display.input.reset(); + } + }); + option("disableInput", false, function(cm, val) {if (!val) cm.display.input.reset();}, true); + option("dragDrop", true, dragDropChanged); + + 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){cm.doc.history.undoDepth = val;}); + option("historyEventDelay", 1250); + option("viewportMargin", 10, function(cm){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) { + cm.display.input.getField().tabIndex = val || ""; + }); + option("autofocus", null); + + // MODE DEFINITION AND QUERYING + + // Known modes, by name and by MIME + var modes = CodeMirror.modes = {}, mimeModes = CodeMirror.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.) + CodeMirror.defineMode = function(name, mode) { + if (!CodeMirror.defaults.mode && name != "null") CodeMirror.defaults.mode = name; + if (arguments.length > 2) + mode.dependencies = Array.prototype.slice.call(arguments, 2); + modes[name] = mode; + }; + + CodeMirror.defineMIME = function(mime, spec) { + mimeModes[mime] = spec; + }; + + // Given a MIME type, a {name, ...options} config object, or a name + // string, return a mode config object. + CodeMirror.resolveMode = function(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 CodeMirror.resolveMode("application/xml"); + } + 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. + CodeMirror.getMode = function(options, spec) { + var spec = CodeMirror.resolveMode(spec); + var mfactory = modes[spec.name]; + if (!mfactory) return CodeMirror.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 in spec.modeProps) + modeObj[prop] = spec.modeProps[prop]; + + return modeObj; + }; + + // Minimal default mode. + CodeMirror.defineMode("null", function() { + return {token: function(stream) {stream.skipToEnd();}}; + }); + CodeMirror.defineMIME("text/plain", "null"); + + // This can be used to attach properties to mode objects from + // outside the actual mode definition. + var modeExtensions = CodeMirror.modeExtensions = {}; + CodeMirror.extendMode = function(mode, properties) { + var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {}); + copyObj(properties, exts); + }; + + // EXTENSIONS + + CodeMirror.defineExtension = function(name, func) { + CodeMirror.prototype[name] = func; + }; + CodeMirror.defineDocExtension = function(name, func) { + Doc.prototype[name] = func; + }; + CodeMirror.defineOption = option; + + var initHooks = []; + CodeMirror.defineInitHook = function(f) {initHooks.push(f);}; + + var helpers = CodeMirror.helpers = {}; + 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}); + }; + + // MODE STATE HANDLING + + // Utility functions for working with state. Exported because nested + // modes need to do this for their inner modes. + + var copyState = CodeMirror.copyState = function(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; + }; + + var startState = CodeMirror.startState = function(mode, a1, a2) { + return mode.startState ? mode.startState(a1, a2) : true; + }; + + // Given a mode and a state (for that mode), find the inner mode and + // state at the position that the state refers to. + CodeMirror.innerMode = function(mode, state) { + while (mode.innerMode) { + var info = mode.innerMode(state); + if (!info || info.mode == mode) break; + state = info.state; + mode = info.mode; + } + return info || {mode: mode, state: state}; + }; + + // STANDARD COMMANDS + + // Commands are parameter-less actions that can be performed on an + // editor, mostly used for keybindings. + var commands = CodeMirror.commands = { + selectAll: function(cm) {cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll);}, + singleSelection: function(cm) { + cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll); + }, + killLine: function(cm) { + 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) { + deleteNearSelection(cm, function(range) { + return {from: Pos(range.from().line, 0), + to: clipPos(cm.doc, Pos(range.to().line + 1, 0))}; + }); + }, + delLineLeft: function(cm) { + deleteNearSelection(cm, function(range) { + return {from: Pos(range.from().line, 0), to: range.from()}; + }); + }, + delWrappedLineLeft: function(cm) { + 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) { + 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) {cm.undo();}, + redo: function(cm) {cm.redo();}, + undoSelection: function(cm) {cm.undoSelection();}, + redoSelection: function(cm) {cm.redoSelection();}, + goDocStart: function(cm) {cm.extendSelection(Pos(cm.firstLine(), 0));}, + goDocEnd: function(cm) {cm.extendSelection(Pos(cm.lastLine()));}, + goLineStart: function(cm) { + cm.extendSelectionsBy(function(range) { return lineStart(cm, range.head.line); }, + {origin: "+move", bias: 1}); + }, + goLineStartSmart: function(cm) { + cm.extendSelectionsBy(function(range) { + return lineStartSmart(cm, range.head); + }, {origin: "+move", bias: 1}); + }, + goLineEnd: function(cm) { + cm.extendSelectionsBy(function(range) { return lineEnd(cm, range.head.line); }, + {origin: "+move", bias: -1}); + }, + goLineRight: function(cm) { + cm.extendSelectionsBy(function(range) { + var top = cm.charCoords(range.head, "div").top + 5; + return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div"); + }, sel_move); + }, + goLineLeft: function(cm) { + cm.extendSelectionsBy(function(range) { + var top = cm.charCoords(range.head, "div").top + 5; + return cm.coordsChar({left: 0, top: top}, "div"); + }, sel_move); + }, + goLineLeftSmart: function(cm) { + cm.extendSelectionsBy(function(range) { + var top = cm.charCoords(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) {cm.moveV(-1, "line");}, + goLineDown: function(cm) {cm.moveV(1, "line");}, + goPageUp: function(cm) {cm.moveV(-1, "page");}, + goPageDown: function(cm) {cm.moveV(1, "page");}, + goCharLeft: function(cm) {cm.moveH(-1, "char");}, + goCharRight: function(cm) {cm.moveH(1, "char");}, + goColumnLeft: function(cm) {cm.moveH(-1, "column");}, + goColumnRight: function(cm) {cm.moveH(1, "column");}, + goWordLeft: function(cm) {cm.moveH(-1, "word");}, + goGroupRight: function(cm) {cm.moveH(1, "group");}, + goGroupLeft: function(cm) {cm.moveH(-1, "group");}, + goWordRight: function(cm) {cm.moveH(1, "word");}, + delCharBefore: function(cm) {cm.deleteH(-1, "char");}, + delCharAfter: function(cm) {cm.deleteH(1, "char");}, + delWordBefore: function(cm) {cm.deleteH(-1, "word");}, + delWordAfter: function(cm) {cm.deleteH(1, "word");}, + delGroupBefore: function(cm) {cm.deleteH(-1, "group");}, + delGroupAfter: function(cm) {cm.deleteH(1, "group");}, + indentAuto: function(cm) {cm.indentSelection("smart");}, + indentMore: function(cm) {cm.indentSelection("add");}, + indentLess: function(cm) {cm.indentSelection("subtract");}, + insertTab: function(cm) {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(new Array(tabSize - col % tabSize + 1).join(" ")); + } + cm.replaceSelections(spaces); + }, + defaultTab: function(cm) { + if (cm.somethingSelected()) cm.indentSelection("add"); + else cm.execCommand("insertTab"); + }, + transposeChars: function(cm) { + runInOp(cm, function() { + var ranges = cm.listSelections(), newSel = []; + for (var i = 0; i < ranges.length; i++) { + 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) + cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() + + prev.charAt(prev.length - 1), + Pos(cur.line - 1, prev.length - 1), Pos(cur.line, 1), "+transpose"); + } + } + newSel.push(new Range(cur, cur)); + } + cm.setSelections(newSel); + }); + }, + newlineAndIndent: function(cm) { + runInOp(cm, function() { + var len = cm.listSelections().length; + for (var i = 0; i < len; i++) { + var range = cm.listSelections()[i]; + cm.replaceRange(cm.doc.lineSeparator(), range.anchor, range.head, "+input"); + cm.indentLine(range.from().line + 1, null, true); + ensureCursorVisible(cm); + } + }); + }, + toggleOverwrite: function(cm) {cm.toggleOverwrite();} + }; + + + // STANDARD KEYMAPS + + var keyMap = CodeMirror.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" + }; + 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)$/i.test(mod)) shift = true; + else throw new Error("Unrecognized modifier name: " + mod); + } + if (alt) name = "Alt-" + name; + if (ctrl) name = "Ctrl-" + name; + if (cmd) name = "Cmd-" + name; + if (shift) name = "Shift-" + name; + return name; + } + + // This is a kludge to keep keymaps mostly working as raw objects + // (backwards compatibility) while at the same time support features + // like normalization and multi-stroke key bindings. It compiles a + // new normalized keymap, and then updates the old object to reflect + // this. + CodeMirror.normalizeKeyMap = function(keymap) { + var copy = {}; + for (var keyname in keymap) if (keymap.hasOwnProperty(keyname)) { + var value = keymap[keyname]; + if (/^(name|fallthrough|(de|at)tach)$/.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, name; + 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; + }; + + var lookupKey = CodeMirror.lookupKey = function(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. + var isModifierKey = CodeMirror.isModifierKey = function(value) { + var name = typeof value == "string" ? value : keyNames[value.keyCode]; + return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod"; + }; + + // Look up the name of a key as indicated by an event object. + var keyName = CodeMirror.keyName = function(event, noShift) { + if (presto && event.keyCode == 34 && event["char"]) return false; + var base = keyNames[event.keyCode], name = base; + if (name == null || event.altGraphKey) return false; + 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 != "Cmd") name = "Cmd-" + name; + if (!noShift && event.shiftKey && base != "Shift") name = "Shift-" + name; + return name; + }; + + function getKeyMap(val) { + return typeof val == "string" ? keyMap[val] : val; + } + + // FROMTEXTAREA + + CodeMirror.fromTextArea = function(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();} + 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 (typeof textarea.form.submit == "function") + textarea.form.submit = realSubmit; + } + }; + }; + + textarea.style.display = "none"; + var cm = CodeMirror(function(node) { + textarea.parentNode.insertBefore(node, textarea.nextSibling); + }, options); + return cm; + }; + + // STRING STREAM + + // Fed to the mode parsers, provides helper functions to make + // parsers more succinct. + + var StringStream = CodeMirror.StringStream = function(string, tabSize) { + this.pos = this.start = 0; + this.string = string; + this.tabSize = tabSize || 8; + this.lastColumnPos = this.lastColumnValue = 0; + this.lineStart = 0; + }; + + StringStream.prototype = { + eol: function() {return this.pos >= this.string.length;}, + sol: function() {return this.pos == this.lineStart;}, + peek: function() {return this.string.charAt(this.pos) || undefined;}, + next: function() { + if (this.pos < this.string.length) + return this.string.charAt(this.pos++); + }, + eat: function(match) { + var ch = this.string.charAt(this.pos); + if (typeof match == "string") var ok = ch == match; + else var ok = ch && (match.test ? match.test(ch) : match(ch)); + if (ok) {++this.pos; return ch;} + }, + eatWhile: function(match) { + var start = this.pos; + while (this.eat(match)){} + return this.pos > start; + }, + eatSpace: function() { + var start = this.pos; + while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos; + return this.pos > start; + }, + skipToEnd: function() {this.pos = this.string.length;}, + skipTo: function(ch) { + var found = this.string.indexOf(ch, this.pos); + if (found > -1) {this.pos = found; return true;} + }, + backUp: function(n) {this.pos -= n;}, + 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); + }, + indentation: function() { + return countColumn(this.string, null, this.tabSize) - + (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0); + }, + 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; + } + }, + current: function(){return this.string.slice(this.start, this.pos);}, + hideFirstChars: function(n, inner) { + this.lineStart += n; + try { return inner(); } + finally { this.lineStart -= n; } + } + }; + + // 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. + + var nextMarkerId = 0; + + var TextMarker = CodeMirror.TextMarker = function(doc, type) { + this.lines = []; + this.type = type; + this.doc = doc; + this.id = ++nextMarkerId; + }; + eventMixin(TextMarker); + + // 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 = 0; i < this.lines.length; ++i) { + var visual = visualLine(this.lines[i]), 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); + 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 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); + } + }); + }; + + 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); + } + }; + + // 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; + + // 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 = elt("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"); + sawCollapsedSpans = true; + } + + 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() { marker.clear(); }); + + if (marker.readOnly) { + sawReadOnlySpans = true; + 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.title || marker.startStyle || marker.endStyle || marker.css) + 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 = CodeMirror.SharedTextMarker = function(markers, primary) { + this.markers = markers; + this.primary = primary; + for (var i = 0; i < markers.length; ++i) + markers[i].parent = this; + }; + eventMixin(SharedTextMarker); + + 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); + }; + + 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) { + for (var i = 0; i < markers.length; i++) { + var marker = markers[i], linked = [marker.primary.doc];; + linkedDocs(marker.primary.doc, function(d) { 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); + } + } + } + } + + // 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) { + for (var r, 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) { + if (old) for (var i = 0, nw; 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) { + if (old) for (var i = 0, nw; 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 = 0; i < last.length; ++i) { + var span = last[i]; + if (span.to != null) span.to += offset; + if (span.from == null) { + var found = getMarkedSpanFor(first, span.marker); + if (!found) { + span.from = offset; + if (sameLine) (first || (first = [])).push(span); + } + } else { + span.from += offset; + if (sameLine) (first || (first = [])).push(span); + } + } + } + // 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 = 0; i < first.length; ++i) + if (first[i].to == null) + (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i].marker, null, null)); + for (var i = 0; i < gap; ++i) + 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 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 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 - 1; + } + } + 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, 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); } + + // 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 && (cmp(found.to, from) > 0 || (sp.marker.inclusiveRight && marker.inclusiveLeft)) || + fromCmp >= 0 && (cmp(found.from, to) < 0 || (sp.marker.inclusiveLeft && marker.inclusiveRight))) + 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; + } + + // 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, 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, 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; + } + } + + // LINE WIDGETS + + // Line widgets are block elements displayed above or below a line. + + var LineWidget = CodeMirror.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; + }; + eventMixin(LineWidget); + + function adjustScrollWhenAboveVisible(cm, line, diff) { + if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop)) + addToScrollPos(cm, null, diff); + } + + 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"); + }); + }; + LineWidget.prototype.changed = function() { + var oldH = this.height, cm = this.doc.cm, line = this.line; + this.height = null; + var diff = widgetHeight(this) - oldH; + if (!diff) return; + updateLineHeight(line, line.height + diff); + if (cm) runInOp(cm, function() { + cm.curOp.forceUpdate = true; + adjustScrollWhenAboveVisible(cm, line, diff); + }); + }; + + 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.offsetHeight; + } + + 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) addToScrollPos(cm, null, widget.height); + cm.curOp.forceUpdate = true; + } + return true; + }); + return widget; + } + + // LINE DATA STRUCTURE + + // Line objects. These hold state related to a line, including + // highlighting info (the styles array). + var Line = CodeMirror.Line = function(text, markedSpans, estimateHeight) { + this.text = text; + attachMarkedSpans(this, markedSpans); + this.height = estimateHeight ? estimateHeight(this) : 1; + }; + eventMixin(Line); + Line.prototype.lineNo = function() { return lineNo(this); }; + + // 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); + } + + 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; + } + + function callBlankLine(mode, state) { + if (mode.blankLine) return mode.blankLine(state); + if (!mode.innerMode) return; + var inner = CodeMirror.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] = CodeMirror.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."); + } + + // Utility for getTokenAt and getLineTokens + function takeToken(cm, pos, precise, asArray) { + function getObj(copy) { + return {start: stream.start, end: stream.pos, + string: stream.current(), + type: style || null, + state: copy ? copyState(doc.mode, state) : state}; + } + + var doc = cm.doc, mode = doc.mode, style; + pos = clipPos(doc, pos); + var line = getLine(doc, pos.line), state = getStateBefore(cm, pos.line, precise); + var stream = new StringStream(line.text, cm.options.tabSize), tokens; + if (asArray) tokens = []; + while ((asArray || stream.pos < pos.ch) && !stream.eol()) { + stream.start = stream.pos; + style = readToken(mode, stream, state); + if (asArray) tokens.push(getObj(true)); + } + return asArray ? tokens : getObj(); + } + + // Run the given mode's parser over a line, calling f for each token. + function runMode(cm, text, mode, state, 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), style; + var inner = cm.options.addModeClass && [null]; + if (text == "") extractLineClasses(callBlankLine(mode, state), lineClasses); + while (!stream.eol()) { + if (stream.pos > cm.options.maxHighlightLength) { + flattenSpans = false; + if (forceToEnd) processLine(cm, text, state, stream.pos); + stream.pos = text.length; + style = null; + } else { + style = extractLineClasses(readToken(mode, stream, 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 + 50000); + 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 + var pos = Math.min(stream.pos, curStart + 50000); + f(pos, curStyle); + curStart = pos; + } + } + + // 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, state, 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, state, function(end, style) { + st.push(end, style); + }, lineClasses, forceToEnd); + + // Run overlays, adjust style array. + for (var o = 0; o < cm.state.overlays.length; ++o) { + var overlay = cm.state.overlays[o], i = 1, at = 0; + runMode(cm, line.text, overlay.mode, true, 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, "cm-overlay " + style); + i = start + 2; + } else { + for (; start < i; start += 2) { + var cur = st[start+1]; + st[start+1] = (cur ? cur + " " : "") + "cm-overlay " + style; + } + } + }, lineClasses); + } + + 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 state = getStateBefore(cm, lineNo(line)); + var result = highlightLine(cm, line, line.text.length > cm.options.maxHighlightLength ? copyState(cm.doc.mode, state) : state); + line.stateAfter = state; + line.styles = result.styles; + if (result.classes) line.styleClasses = result.classes; + else if (line.styleClasses) line.styleClasses = null; + if (updateFrontier === cm.doc.frontier) cm.doc.frontier++; + } + return line.styles; + } + + // 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, state, startAt) { + var mode = cm.doc.mode; + var stream = new StringStream(text, cm.options.tabSize); + stream.start = stream.pos = startAt || 0; + if (text == "") callBlankLine(mode, state); + while (!stream.eol()) { + readToken(mode, stream, state); + stream.start = stream.pos; + } + } + + // 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 = elt("span", null, null, webkit ? "padding-right: .1px" : null); + var builder = {pre: elt("pre", [content], "CodeMirror-line"), content: content, + col: 0, pos: 0, cm: cm, + splitSpaces: (ie || webkit) && 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; + 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))) + 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 && /\bcm-tab\b/.test(builder.content.lastChild.className)) + 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, title, css) { + if (!text) return; + var displayText = builder.splitSpaces ? text.replace(/ {3,}/g, splitSpaces) : text; + var special = builder.cm.state.specialChars, mustWrap = false; + if (!special.test(text)) { + builder.col += text.length; + var 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 { + var content = document.createDocumentFragment(), 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; + if (m[0] == "\t") { + var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize; + var txt = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab")); + txt.setAttribute("role", "presentation"); + txt.setAttribute("cm-text", "\t"); + builder.col += tabWidth; + } else if (m[0] == "\r" || m[0] == "\n") { + var txt = content.appendChild(elt("span", m[0] == "\r" ? "␍" : "␤", "cm-invalidchar")); + txt.setAttribute("cm-text", m[0]); + builder.col += 1; + } else { + var txt = builder.cm.options.specialCharPlaceholder(m[0]); + txt.setAttribute("cm-text", m[0]); + if (ie && ie_version < 9) content.appendChild(elt("span", [txt])); + else content.appendChild(txt); + builder.col += 1; + } + builder.map.push(builder.pos, builder.pos + 1, txt); + builder.pos++; + } + } + if (style || startStyle || endStyle || mustWrap || css) { + var fullStyle = style || ""; + if (startStyle) fullStyle += startStyle; + if (endStyle) fullStyle += endStyle; + var token = elt("span", [content], fullStyle, css); + if (title) token.title = title; + return builder.content.appendChild(token); + } + builder.content.appendChild(content); + } + + function splitSpaces(old) { + var out = " "; + for (var i = 0; i < old.length - 2; ++i) out += i % 2 ? " " : "\u00a0"; + out += " "; + return out; + } + + // Work around nonsense dimensions being reported for stretches of + // right-to-left text. + function buildTokenBadBidi(inner, order) { + return function(builder, text, style, startStyle, endStyle, title, css) { + 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 + for (var i = 0; i < order.length; i++) { + var part = order[i]; + if (part.to > start && part.from <= start) break; + } + if (part.to >= end) return inner(builder, text, style, startStyle, endStyle, title, css); + inner(builder, text.slice(0, part.to - start), style, startStyle, null, title, css); + 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; + } + + // 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; i < styles.length; i+=2) + builder.addToken(builder, allText.slice(at, at = styles[i]), interpretTokenStyle(styles[i+1], builder.cm.options)); + return; + } + + var len = allText.length, pos = 0, i = 1, text = "", style, css; + var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, title, collapsed; + for (;;) { + if (nextChange == pos) { // Update current marker set + spanStyle = spanEndStyle = spanStartStyle = title = css = ""; + collapsed = null; nextChange = Infinity; + var foundBookmarks = []; + 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 = m.css; + if (m.startStyle && sp.from == pos) spanStartStyle += " " + m.startStyle; + if (m.endStyle && sp.to == nextChange) spanEndStyle += " " + m.endStyle; + if (m.title && !title) title = m.title; + if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0)) + collapsed = sp; + } else if (sp.from > pos && nextChange > sp.from) { + nextChange = sp.from; + } + } + 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 (!collapsed && foundBookmarks.length) for (var j = 0; j < foundBookmarks.length; ++j) + buildCollapsedSpan(builder, 0, foundBookmarks[j]); + } + 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 : "", title, css); + } + 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); + } + } + } + + // 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) { + for (var i = start, result = []; 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 = linesFor(1, text.length - 1); + added.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); + } + } 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 = linesFor(1, text.length - 1); + if (nlines > 1) doc.remove(from.line + 1, nlines - 1); + doc.insert(from.line + 1, added); + } + + signalLater(doc, "change", doc, change); + } + + // 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; + for (var i = 0, height = 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) { + while (child.lines.length > 50) { + var spilled = child.lines.splice(child.lines.length - 25, 25); + var newleaf = new LeafChunk(spilled); + child.height -= newleaf.height; + this.children.splice(i + 1, 0, newleaf); + newleaf.parent = this; + } + 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; + } + } + }; + + var nextDocId = 0; + var Doc = CodeMirror.Doc = function(text, mode, firstLine, lineSep) { + if (!(this instanceof Doc)) return new Doc(text, mode, firstLine, lineSep); + 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.frontier = firstLine; + var start = Pos(firstLine, 0); + this.sel = simpleSelection(start); + this.history = new History(null); + this.id = ++nextDocId; + this.modeOption = mode; + this.lineSep = lineSep; + + 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); + setSelection(this, simpleSelection(top)); + }), + 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) { + extendSelections(this, map(this.sel.ranges, f), options); + }), + setSelections: docMethodOp(function(ranges, primary, options) { + if (!ranges.length) return; + for (var i = 0, out = []; 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(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(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 = changes.length - 1; i >= 0; i--) + makeChange(this, changes[i]); + 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 = 0; i < hist.undone.length; i++) if (!hist.undone[i].ranges) ++undone; + return {undo: done, redo: undone}; + }, + clearHistory: function() {this.history = new History(this.history.maxGeneration);}, + + 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); + }, + + 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, "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 (!(lineNo == from.line && from.ch > span.to || + span.from == null && lineNo != from.line|| + 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; + this.iter(function(line) { + var sz = line.text.length + 1; + 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; + this.iter(this.first, coords.line, function (line) { + index += line.text.length + 1; + }); + return index; + }, + + copy: function(copyHistory) { + var doc = new Doc(getLines(this, this.first, this.first + this.size), + this.modeOption, this.first, this.lineSep); + 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); + 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) {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"; } + }); + + // Public alias. + Doc.prototype.eachLine = Doc.prototype.iter; + + // 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); + + // 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); + if (!cm.options.lineWrapping) findMaxLine(cm); + cm.options.mode = doc.modeOption; + regChange(cm); + } + + // LINE UTILITIES + + // 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."); + for (var chunk = doc; !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); }); + 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 = 0; i < chunk.children.length; ++i) { + var child = chunk.children[i], ch = child.height; + if (h < ch) { chunk = child; continue outer; } + h -= ch; + n += child.chunkSize(); + } + return n; + } while (!chunk.lines); + for (var i = 0; i < chunk.lines.length; ++i) { + var line = chunk.lines[i], lh = line.height; + if (h < lh) break; + h -= lh; + } + return n + i; + } + + + // 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 = 0; i < p.children.length; ++i) { + var cur = p.children[i]; + if (cur == chunk) break; + else h += cur.height; + } + } + return h; + } + + // 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) { + var order = line.order; + if (order == null) order = line.order = bidiOrdering(line.text); + return order; + } + + // HISTORY + + 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) {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, ore 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; + + if ((hist.lastOp == opId || + hist.lastOrigin == change.origin && change.origin && + ((change.origin.charAt(0) == "+" && doc.cm && hist.lastModTime > time - doc.cm.options.historyEventDelay) || + change.origin.charAt(0) == "*")) && + (cur = lastChangeEvent(hist, hist.lastOp == opId))) { + // Merge this change into the last event + var 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; + for (var i = 0, out; 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; + for (var i = 0, nw = []; i < change.text.length; ++i) + nw.push(removeClearedSpans(found[i])); + return nw; + } + + // 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) { + for (var i = 0, copy = []; 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; + 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; + } + + // 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 = 0; j < sub.changes.length; ++j) { + var cur = sub.changes[j]; + 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); + } + + // EVENT UTILITIES + + // Due to the fact that we still support jurassic IE versions, some + // compatibility wrappers are needed. + + var e_preventDefault = CodeMirror.e_preventDefault = function(e) { + if (e.preventDefault) e.preventDefault(); + else e.returnValue = false; + }; + var e_stopPropagation = CodeMirror.e_stopPropagation = function(e) { + if (e.stopPropagation) e.stopPropagation(); + else e.cancelBubble = true; + }; + function e_defaultPrevented(e) { + return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false; + } + var e_stop = CodeMirror.e_stop = function(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; + } + + // EVENT HANDLING + + // Lightweight event framework. on/off also work on DOM nodes, + // registering native DOM handlers. + + var on = CodeMirror.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 = {}); + var arr = map[type] || (map[type] = []); + arr.push(f); + } + }; + + var off = CodeMirror.off = function(emitter, type, f) { + if (emitter.removeEventListener) + emitter.removeEventListener(type, f, false); + else if (emitter.detachEvent) + emitter.detachEvent("on" + type, f); + else { + var arr = emitter._handlers && emitter._handlers[type]; + if (!arr) return; + for (var i = 0; i < arr.length; ++i) + if (arr[i] == f) { arr.splice(i, 1); break; } + } + }; + + var signal = CodeMirror.signal = function(emitter, type /*, values...*/) { + var arr = emitter._handlers && emitter._handlers[type]; + if (!arr) return; + var args = Array.prototype.slice.call(arguments, 2); + for (var i = 0; i < arr.length; ++i) arr[i].apply(null, args); + }; + + 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 = emitter._handlers && emitter._handlers[type]; + if (!arr) 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); + } + function bnd(f) {return function(){f.apply(null, args);};}; + for (var i = 0; i < arr.length; ++i) + list.push(bnd(arr[i])); + } + + function fireOrphanDelayed() { + var delayed = orphanDelayedCallbacks; + orphanDelayedCallbacks = null; + for (var i = 0; i < delayed.length; ++i) delayed[i](); + } + + // 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) { + var arr = emitter._handlers && emitter._handlers[type]; + return arr && arr.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);}; + } + + // MISC UTILITIES + + // Number of pixels added to scroller and sizer to hide scrollbar + var scrollerGap = 30; + + // Returned or thrown by various protocols to signal 'I'm not + // handling this'. + var Pass = CodeMirror.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"}; + + function Delayed() {this.id = null;} + Delayed.prototype.set = function(ms, f) { + clearTimeout(this.id); + this.id = setTimeout(f, ms); + }; + + // Counts the column offset in a string, taking tabs into account. + // Used mostly to find indentation. + var countColumn = CodeMirror.countColumn = function(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; + } + }; + + // 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]; } + + 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 indexOf(array, elt) { + for (var i = 0; i < array.length; ++i) + if (array[i] == elt) return i; + return -1; + } + function map(array, f) { + var out = []; + for (var i = 0; i < array.length; i++) out[i] = f(array[i], i); + return out; + } + + 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; + }; + + 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; + } + + function bind(f) { + var args = Array.prototype.slice.call(arguments, 1); + return function(){return f.apply(null, args);}; + } + + var nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/; + var isWordCharBasic = CodeMirror.isWordChar = function(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); } + + // DOM UTILITIES + + 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; + } + + 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 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); + } + + var contains = CodeMirror.contains = function(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() { + var activeElement = document.activeElement; + while (activeElement && activeElement.root && activeElement.root.activeElement) + activeElement = activeElement.root.activeElement; + return activeElement; + } + // Older versions of IE throws unspecified error when touching + // document.activeElement in some cases (during loading, in iframe) + if (ie && ie_version < 11) activeElt = function() { + try { return document.activeElement; } + catch(e) { return document.body; } + }; + + function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*"); } + var rmClass = CodeMirror.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 : ""); + } + }; + var addClass = CodeMirror.addClass = function(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; + } + + // WINDOW-WIDE EVENTS + + // 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.body.getElementsByClassName) return; + var byClass = document.body.getElementsByClassName("CodeMirror"); + for (var i = 0; i < byClass.length; i++) { + var cm = byClass[i].CodeMirror; + if (cm) f(cm); + } + } + + 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() { + forEachCodeMirror(onBlur); + }); + } + + // FEATURE DETECTION + + // 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(); + if (!r0 || r0.left == r0.right) return false; // Safari returns null in some cases (#2780) + var r1 = range(txt, 1, 2).getBoundingClientRect(); + 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 = CodeMirror.splitLines = "\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) { + try {var 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; + } + + // KEY NAMES + + var keyNames = {3: "Enter", 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", 107: "=", 109: "-", 127: "Delete", + 173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\", + 221: "]", 222: "'", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete", + 63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert"}; + CodeMirror.keyNames = keyNames; + (function() { + // Number keys + for (var i = 0; i < 10; i++) keyNames[i + 48] = keyNames[i + 96] = String(i); + // Alphabetic keys + for (var i = 65; i <= 90; i++) keyNames[i] = String.fromCharCode(i); + // Function keys + for (var i = 1; i <= 12; i++) keyNames[i + 111] = keyNames[i + 63235] = "F" + i; + })(); + + // BIDI HELPERS + + function iterateBidiSections(order, from, to, f) { + if (!order) return f(from, to, "ltr"); + 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"); + found = true; + } + } + if (!found) f(from, to, "ltr"); + } + + function bidiLeft(part) { return part.level % 2 ? part.to : part.from; } + function bidiRight(part) { return part.level % 2 ? part.from : part.to; } + + function lineLeft(line) { var order = getOrder(line); return order ? bidiLeft(order[0]) : 0; } + function lineRight(line) { + var order = getOrder(line); + if (!order) return line.text.length; + return bidiRight(lst(order)); + } + + function lineStart(cm, lineN) { + var line = getLine(cm.doc, lineN); + var visual = visualLine(line); + if (visual != line) lineN = lineNo(visual); + var order = getOrder(visual); + var ch = !order ? 0 : order[0].level % 2 ? lineRight(visual) : lineLeft(visual); + return Pos(lineN, ch); + } + function lineEnd(cm, lineN) { + var merged, line = getLine(cm.doc, lineN); + while (merged = collapsedSpanAtEnd(line)) { + line = merged.find(1, true).line; + lineN = null; + } + var order = getOrder(line); + var ch = !order ? line.text.length : order[0].level % 2 ? lineLeft(line) : lineRight(line); + return Pos(lineN == null ? lineNo(line) : lineN, ch); + } + function lineStartSmart(cm, pos) { + var start = lineStart(cm, pos.line); + var line = getLine(cm.doc, start.line); + var order = getOrder(line); + if (!order || order[0].level == 0) { + var firstNonWS = Math.max(0, line.text.search(/\S/)); + var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch; + return Pos(start.line, inWS ? 0 : firstNonWS); + } + return start; + } + + function compareBidiLevel(order, a, b) { + var linedir = order[0].level; + if (a == linedir) return true; + if (b == linedir) return false; + return a < b; + } + var bidiOther; + function getBidiPartAt(order, pos) { + bidiOther = null; + for (var i = 0, found; i < order.length; ++i) { + var cur = order[i]; + if (cur.from < pos && cur.to > pos) return i; + if ((cur.from == pos || cur.to == pos)) { + if (found == null) { + found = i; + } else if (compareBidiLevel(order, cur.level, order[found].level)) { + if (cur.from != cur.to) bidiOther = found; + return i; + } else { + if (cur.from != cur.to) bidiOther = i; + return found; + } + } + } + return found; + } + + function moveInLine(line, pos, dir, byUnit) { + if (!byUnit) return pos + dir; + do pos += dir; + while (pos > 0 && isExtendingChar(line.text.charAt(pos))); + return pos; + } + + // This is needed in order to move 'visually' through bi-directional + // text -- i.e., pressing left should make the cursor go left, even + // when in RTL text. The tricky part is the 'jumps', where RTL and + // LTR text touch each other. This often requires the cursor offset + // to move more than one unit, in order to visually move one unit. + function moveVisually(line, start, dir, byUnit) { + var bidi = getOrder(line); + if (!bidi) return moveLogically(line, start, dir, byUnit); + var pos = getBidiPartAt(bidi, start), part = bidi[pos]; + var target = moveInLine(line, start, part.level % 2 ? -dir : dir, byUnit); + + for (;;) { + if (target > part.from && target < part.to) return target; + if (target == part.from || target == part.to) { + if (getBidiPartAt(bidi, target) == pos) return target; + part = bidi[pos += dir]; + return (dir > 0) == part.level % 2 ? part.to : part.from; + } else { + part = bidi[pos += dir]; + if (!part) return null; + if ((dir > 0) == part.level % 2) + target = moveInLine(line, part.to, -1, byUnit); + else + target = moveInLine(line, part.from, 1, byUnit); + } + } + } + + function moveLogically(line, start, dir, byUnit) { + var target = start + dir; + if (byUnit) while (target > 0 && isExtendingChar(line.text.charAt(target))) target += dir; + return target < 0 || target > line.text.length ? null : target; + } + + // 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 0x6ff + var arabicTypes = "rrrrrrrrrrrr,rNNmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmrrrrrrrnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmNmmmm"; + function charType(code) { + if (code <= 0xf7) return lowTypes.charAt(code); + else if (0x590 <= code && code <= 0x5f4) return "R"; + else if (0x600 <= code && code <= 0x6ed) 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]/; + // Browsers seem to always treat the boundaries of block elements as being L. + var outerType = "L"; + + function BidiSpan(level, from, to) { + this.level = level; + this.from = from; this.to = to; + } + + return function(str) { + if (!bidiRE.test(str)) return false; + var len = str.length, types = []; + for (var i = 0, type; i < len; ++i) + types.push(type = 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 = 0, prev = outerType; i < len; ++i) { + var type = types[i]; + if (type == "m") types[i] = 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 = 0, cur = outerType; i < len; ++i) { + var type = types[i]; + if (type == "1" && cur == "r") types[i] = "n"; + else if (isStrong.test(type)) { cur = type; if (type == "r") types[i] = "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 = 1, prev = types[0]; i < len - 1; ++i) { + var type = types[i]; + if (type == "+" && prev == "1" && types[i+1] == "1") types[i] = "1"; + else if (type == "," && prev == types[i+1] && + (prev == "1" || prev == "n")) types[i] = prev; + prev = type; + } + + // 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 = 0; i < len; ++i) { + var type = types[i]; + if (type == ",") types[i] = "N"; + else if (type == "%") { + for (var end = i + 1; end < len && types[end] == "%"; ++end) {} + var replace = (i && types[i-1] == "!") || (end < len && types[end] == "1") ? "1" : "N"; + for (var j = i; j < end; ++j) types[j] = replace; + i = 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 = 0, cur = outerType; i < len; ++i) { + var type = types[i]; + if (cur == "L" && type == "1") types[i] = "L"; + else if (isStrong.test(type)) cur = type; + } + + // 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 = 0; i < len; ++i) { + if (isNeutral.test(types[i])) { + for (var end = i + 1; end < len && isNeutral.test(types[end]); ++end) {} + var before = (i ? types[i-1] : outerType) == "L"; + var after = (end < len ? types[end] : outerType) == "L"; + var replace = before || after ? "L" : "R"; + for (var j = i; j < end; ++j) types[j] = replace; + i = end - 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 = 0; i < len;) { + if (countsAsLeft.test(types[i])) { + var start = i; + for (++i; i < len && countsAsLeft.test(types[i]); ++i) {} + order.push(new BidiSpan(0, start, i)); + } else { + var pos = i, at = order.length; + for (++i; i < len && types[i] != "L"; ++i) {} + for (var j = pos; j < i;) { + if (countsAsNum.test(types[j])) { + if (pos < j) order.splice(at, 0, new BidiSpan(1, pos, j)); + var nstart = j; + for (++j; j < i && countsAsNum.test(types[j]); ++j) {} + order.splice(at, 0, new BidiSpan(2, nstart, j)); + pos = j; + } else ++j; + } + if (pos < i) order.splice(at, 0, new BidiSpan(1, pos, i)); + } + } + 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)); + } + if (order[0].level == 2) + order.unshift(new BidiSpan(1, order[0].to, order[0].to)); + if (order[0].level != lst(order).level) + order.push(new BidiSpan(order[0].level, len, len)); + + return order; + }; + })(); + + // THE END + + CodeMirror.version = "5.6.0"; + + return CodeMirror; +}); diff --git a/public/assets/codemirror/codemirror_python_ruby_c.js b/public/assets/codemirror/codemirror_python_ruby_c.js new file mode 100644 index 000000000..cfc0eb6ee --- /dev/null +++ b/public/assets/codemirror/codemirror_python_ruby_c.js @@ -0,0 +1,18 @@ +/* CodeMirror - Minified & Bundled + Generated on 2015/9/19 with http://codemirror.net/doc/compress.html + Version: HEAD + + CodeMirror Library: + - codemirror.js + Modes: + - clike.js + - python.js + - ruby.js + */ + +!function(a){if("object"==typeof exports&&"object"==typeof module)module.exports=a();else{if("function"==typeof define&&define.amd)return define([],a);this.CodeMirror=a()}}(function(){"use strict";function v(a,b){if(!(this instanceof v))return new v(a,b);this.options=b=b?hg(b):{},hg(Ad,b,!1),I(b);var c=b.value;"string"==typeof c&&(c=new af(c,b.mode,null,b.lineSeparator)),this.doc=c;var g=new v.inputStyles[b.inputStyle](this),h=this.display=new w(a,c,g);h.wrapper.CodeMirror=this,E(this),C(this),b.lineWrapping&&(this.display.wrapper.className+=" CodeMirror-wrap"),b.autofocus&&!n&&h.input.focus(),M(this),this.state={keyMaps:[],overlays:[],modeGen:0,overwrite:!1,delayingBlurEvent:!1,focused:!1,suppressEdits:!1,pasteIncoming:!1,cutIncoming:!1,selectingText:!1,draggingText:!1,highlight:new Yf,keySeq:null,specialChars:null};var i=this;d&&11>e&&setTimeout(function(){i.display.input.reset(!0)},20),pc(this),Bg(),Vb(this),this.curOp.forceUpdate=!0,ef(this,c),b.autofocus&&!n||i.hasFocus()?setTimeout(ig(Zc,this),20):$c(this);for(var j in 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c=a.display,d=c.scrollbars.update(b);c.sizer.style.paddingRight=(c.barWidth=d.right)+"px",c.sizer.style.paddingBottom=(c.barHeight=d.bottom)+"px",d.right&&d.bottom?(c.scrollbarFiller.style.display="block",c.scrollbarFiller.style.height=d.bottom+"px",c.scrollbarFiller.style.width=d.right+"px"):c.scrollbarFiller.style.display="",d.bottom&&a.options.coverGutterNextToScrollbar&&a.options.fixedGutter?(c.gutterFiller.style.display="block",c.gutterFiller.style.height=d.bottom+"px",c.gutterFiller.style.width=b.gutterWidth+"px"):c.gutterFiller.style.display=""}function P(a,b,c){var d=c&&null!=c.top?Math.max(0,c.top):a.scroller.scrollTop;d=Math.floor(d-mb(a));var e=c&&null!=c.bottom?c.bottom:d+a.wrapper.clientHeight,f=lf(b,d),g=lf(b,e);if(c&&c.ensure){var h=c.ensure.from.line,i=c.ensure.to.line;f>h?(f=h,g=lf(b,mf(ff(b,h))+a.wrapper.clientHeight)):Math.min(i,b.lastLine())>=g&&(f=lf(b,mf(ff(b,i))-a.wrapper.clientHeight),g=i)}return{from:f,to:Math.max(g,f+1)}}function Q(a){var b=a.display,c=b.view;if(b.alignWidgets||b.gutters.firstChild&&a.options.fixedGutter){for(var d=T(b)-b.scroller.scrollLeft+a.doc.scrollLeft,e=b.gutters.offsetWidth,f=d+"px",g=0;g=c.viewFrom&&b.visible.to<=c.viewTo&&(null==c.updateLineNumbers||c.updateLineNumbers>=c.viewTo)&&c.renderedView==c.view&&0==oc(a))return!1;R(a)&&(kc(a),b.dims=aa(a));var e=d.first+d.size,f=Math.max(b.visible.from-a.options.viewportMargin,d.first),g=Math.min(e,b.visible.to+a.options.viewportMargin);c.viewFromg&&c.viewTo-g<20&&(g=Math.min(e,c.viewTo)),u&&(f=ue(a.doc,f),g=ve(a.doc,g));var h=f!=c.viewFrom||g!=c.viewTo||c.lastWrapHeight!=b.wrapperHeight||c.lastWrapWidth!=b.wrapperWidth;nc(a,f,g),c.viewOffset=mf(ff(a.doc,c.viewFrom)),a.display.mover.style.top=c.viewOffset+"px";var i=oc(a);if(!h&&0==i&&!b.force&&c.renderedView==c.view&&(null==c.updateLineNumbers||c.updateLineNumbers>=c.viewTo))return!1;var j=ug();return i>4&&(c.lineDiv.style.display="none"),ba(a,c.updateLineNumbers,b.dims),i>4&&(c.lineDiv.style.display=""),c.renderedView=c.view,j&&ug()!=j&&j.offsetHeight&&j.focus(),rg(c.cursorDiv),rg(c.selectionDiv),c.gutters.style.height=c.sizer.style.minHeight=0,h&&(c.lastWrapHeight=b.wrapperHeight,c.lastWrapWidth=b.wrapperWidth,ib(a,400)),c.updateLineNumbers=null,!0}function X(a,b){for(var c=b.viewport,d=!0;(d&&a.options.lineWrapping&&b.oldDisplayWidth!=qb(a)||(c&&null!=c.top&&(c={top:Math.min(a.doc.height+nb(a.display)-rb(a),c.top)}),b.visible=P(a.display,a.doc,c),!(b.visible.from>=a.display.viewFrom&&b.visible.to<=a.display.viewTo)))&&W(a,b);d=!1){$(a);var e=J(a);db(a),Z(a,e),N(a,e)}b.signal(a,"update",a),(a.display.viewFrom!=a.display.reportedViewFrom||a.display.viewTo!=a.display.reportedViewTo)&&(b.signal(a,"viewportChange",a,a.display.viewFrom,a.display.viewTo),a.display.reportedViewFrom=a.display.viewFrom,a.display.reportedViewTo=a.display.viewTo)}function Y(a,b){var c=new U(a,b);if(W(a,c)){$(a),X(a,c);var d=J(a);db(a),Z(a,d),N(a,d),c.finish()}}function Z(a,b){a.display.sizer.style.minHeight=b.docHeight+"px";var c=b.docHeight+a.display.barHeight;a.display.heightForcer.style.top=c+"px",a.display.gutters.style.height=Math.max(c+pb(a),b.clientHeight)+"px"}function $(a){for(var b=a.display,c=b.lineDiv.offsetTop,f=0;fe){var i=g.node.offsetTop+g.node.offsetHeight;h=i-c,c=i}else{var j=g.node.getBoundingClientRect();h=j.bottom-j.top}var k=g.line.height-h;if(2>h&&(h=Rb(b)),(k>.001||-.001>k)&&(jf(g.line,h),_(g.line),g.rest))for(var l=0;l=b&&m.lineNumber;m.changes&&(dg(m.changes,"gutter")>-1&&(p=!1),ca(a,m,k,c)),p&&(rg(m.lineNumber),m.lineNumber.appendChild(document.createTextNode(S(a.options,k)))),h=m.node.nextSibling}else{var n=ka(a,m,k,c);g.insertBefore(n,h)}k+=m.size}for(;h;)h=i(h)}function ca(a,b,c,d){for(var e=0;ee&&(a.node.style.zIndex=2)),a.node}function ea(a){var b=a.bgClass?a.bgClass+" "+(a.line.bgClass||""):a.line.bgClass;if(b&&(b+=" 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ia(a,b,c,d){if(b.gutter&&(b.node.removeChild(b.gutter),b.gutter=null),b.gutterBackground&&(b.node.removeChild(b.gutterBackground),b.gutterBackground=null),b.line.gutterClass){var e=da(b);b.gutterBackground=pg("div",null,"CodeMirror-gutter-background "+b.line.gutterClass,"left: "+(a.options.fixedGutter?d.fixedPos:-d.gutterTotalWidth)+"px; width: "+d.gutterTotalWidth+"px"),e.insertBefore(b.gutterBackground,b.text)}var f=b.line.gutterMarkers;if(a.options.lineNumbers||f){var e=da(b),g=b.gutter=pg("div",null,"CodeMirror-gutter-wrapper","left: "+(a.options.fixedGutter?d.fixedPos:-d.gutterTotalWidth)+"px");if(a.display.input.setUneditable(g),e.insertBefore(g,b.text),b.line.gutterClass&&(g.className+=" "+b.line.gutterClass),!a.options.lineNumbers||f&&f["CodeMirror-linenumbers"]||(b.lineNumber=g.appendChild(pg("div",S(a.options,c),"CodeMirror-linenumber CodeMirror-gutter-elt","left: "+d.gutterLeft["CodeMirror-linenumbers"]+"px; width: "+a.display.lineNumInnerWidth+"px"))),f)for(var h=0;h1)if(va&&va.join("\n")==b){if(d.ranges.length%va.length==0){i=[];for(var j=0;j=0;j--){var k=d.ranges[j],l=k.from(),m=k.to();k.empty()&&(c&&c>0?l=oa(l.line,l.ch-c):a.state.overwrite&&!g&&(m=oa(m.line,Math.min(ff(f,m.line).text.length,m.ch+bg(h).length))));var n=a.curOp.updateInput,o={from:l,to:m,text:i?i[j%i.length]:h,origin:e||(g?"paste":a.state.cutIncoming?"cut":"+input")};hd(a.doc,o),Nf(a,"inputRead",a,o)}b&&!g&&ya(a,b),td(a),a.curOp.updateInput=n,a.curOp.typing=!0,a.state.pasteIncoming=a.state.cutIncoming=!1}function xa(a,b){var c=a.clipboardData&&a.clipboardData.getData("text/plain");return c?(a.preventDefault(),ua(b)||b.options.disableInput||cc(b,function(){wa(b,c,0,null,"paste")}),!0):void 0}function ya(a,b){if(a.options.electricChars&&a.options.smartIndent)for(var c=a.doc.sel,d=c.ranges.length-1;d>=0;d--){var e=c.ranges[d];if(!(e.head.ch>100||d&&c.ranges[d-1].head.line==e.head.line)){var f=a.getModeAt(e.head),g=!1;if(f.electricChars){for(var h=0;h-1){g=vd(a,e.head.line,"smart");break}}else f.electricInput&&f.electricInput.test(ff(a.doc,e.head.line).text.slice(0,e.head.ch))&&(g=vd(a,e.head.line,"smart"));g&&Nf(a,"electricInput",a,e.head.line)}}}function za(a){for(var b=[],c=[],d=0;de?i.map:j[e],g=0;ge?a.line:a.rest[e]),l=f[g]+d;return(0>d||h!=b)&&(l=f[g+(d?1:0)]),oa(k,l)}}}var d=a.text.firstChild,e=!1;if(!b||!tg(d,b))return Fa(oa(kf(a.line),0),!0);if(b==d&&(e=!0,b=d.childNodes[c],c=0,!b)){var f=a.rest?bg(a.rest):a.line;return Fa(oa(kf(f),f.text.length),e)}var g=3==b.nodeType?b:null,h=b;for(g||1!=b.childNodes.length||3!=b.firstChild.nodeType||(g=b.firstChild,c&&(c=g.nodeValue.length));h.parentNode!=d;)h=h.parentNode;var i=a.measure,j=i.maps,l=k(g,h,c);if(l)return Fa(l,e);for(var m=h.nextSibling,n=g?g.nodeValue.length-c:0;m;m=m.nextSibling){if(l=k(m,m.firstChild,0))return Fa(oa(l.line,l.ch-n),e);n+=m.textContent.length}for(var o=h.previousSibling,n=c;o;o=o.previousSibling){if(l=k(o,o.firstChild,-1))return 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d=a.display,e=a.doc,f=document.createDocumentFragment(),g=ob(a.display),h=g.left,i=Math.max(d.sizerWidth,qb(a)-d.sizer.offsetLeft)-g.right,l=b.from(),m=b.to();if(l.line==m.line)k(l.line,l.ch,m.ch);else{var n=ff(e,l.line),o=ff(e,m.line),p=se(n)==se(o),q=k(l.line,l.ch,p?n.text.length+1:null).end,r=k(m.line,p?0:null,m.ch).start;p&&(q.top0?b.blinker=setInterval(function(){b.cursorDiv.style.visibility=(c=!c)?"":"hidden"},a.options.cursorBlinkRate):a.options.cursorBlinkRate<0&&(b.cursorDiv.style.visibility="hidden")}}function ib(a,b){a.doc.mode.startState&&a.doc.frontier=a.display.viewTo)){var c=+new Date+a.options.workTime,d=Jd(b.mode,lb(a,b.frontier)),e=[];b.iter(b.frontier,Math.min(b.first+b.size,a.display.viewTo+500),function(f){if(b.frontier>=a.display.viewFrom){var g=f.styles,h=f.text.length>a.options.maxHighlightLength,i=Ke(a,f,h?Jd(b.mode,d):d,!0);f.styles=i.styles;var j=f.styleClasses,k=i.classes;k?f.styleClasses=k:j&&(f.styleClasses=null);for(var l=!g||g.length!=f.styles.length||j!=k&&(!j||!k||j.bgClass!=k.bgClass||j.textClass!=k.textClass),m=0;!l&&mc?(ib(a,a.options.workDelay),!0):void 0}),e.length&&cc(a,function(){for(var b=0;bg;--h){if(h<=f.first)return f.first;var i=ff(f,h-1);if(i.stateAfter&&(!c||h<=f.frontier))return h;var j=Zf(i.text,null,a.options.tabSize);(null==e||d>j)&&(e=h-1,d=j)}return e}function lb(a,b,c){var d=a.doc,e=a.display;if(!d.mode.startState)return!0;var f=kb(a,b,c),g=f>d.first&&ff(d,f-1).stateAfter;return g=g?Jd(d.mode,g):Kd(d.mode),d.iter(f,b,function(c){Me(a,c.text,g);var h=f==b-1||f%5==0||f>=e.viewFrom&&f2&&f.push((i.bottom+j.top)/2-c.top)}}f.push(c.bottom-c.top)}}function tb(a,b,c){if(a.line==b)return{map:a.measure.map,cache:a.measure.cache};for(var d=0;dc)return{map:a.measure.maps[d],cache:a.measure.caches[d],before:!0}}function ub(a,b){b=se(b);var c=kf(b),d=a.display.externalMeasured=new gc(a.doc,b,c);d.lineN=c;var e=d.built=Qe(a,d);return d.text=e.pre,sg(a.display.lineMeasure,e.pre),d}function vb(a,b,c,d){return yb(a,xb(a,b),c,d)}function wb(a,b){if(b>=a.display.viewFrom&&b=c.lineN&&bb?(e=0,f=1,g="left"):j>b?(e=b-i,f=e+1):(h==a.length-3||b==j&&a[h+3]>b)&&(f=j-i,e=f-1,b>=j&&(g="right")),null!=e){if(d=a[h+2],i==j&&c==(d.insertLeft?"left":"right")&&(g=c),"left"==c&&0==e)for(;h&&a[h-2]==a[h-3]&&a[h-1].insertLeft;)d=a[(h-=3)+2],g="left";if("right"==c&&e==j-i)for(;hm;m++){for(;i&&og(b.line.text.charAt(g.coverStart+i));)--i;for(;g.coverStart+je&&0==i&&j==g.coverEnd-g.coverStart)l=h.parentNode.getBoundingClientRect();else if(d&&a.options.lineWrapping){var n=qg(h,i,j).getClientRects();l=n.length?n["right"==f?n.length-1:0]:zb}else l=qg(h,i,j).getBoundingClientRect()||zb;if(l.left||l.right||0==i)break;j=i,i-=1,k="right"}d&&11>e&&(l=Cb(a.display.measure,l))}else{i>0&&(k=f="right");var n;l=a.options.lineWrapping&&(n=h.getClientRects()).length>1?n["right"==f?n.length-1:0]:h.getBoundingClientRect()}if(d&&9>e&&!i&&(!l||!l.left&&!l.right)){var o=h.parentNode.getClientRects()[0];l=o?{left:o.left,right:o.left+Sb(a.display),top:o.top,bottom:o.bottom}:zb}for(var p=l.top-b.rect.top,q=l.bottom-b.rect.top,r=(p+q)/2,s=b.view.measure.heights,m=0;mc.from?g(a-1):g(a,d)}d=d||ff(a.doc,b.line),e||(e=xb(a,d));var i=nf(d),j=b.ch;if(!i)return g(j);var k=Yg(i,j),l=h(j,k);return null!=Xg&&(l.other=h(j,Xg)),l}function Mb(a,b){var c=0,b=Oa(a.doc,b);a.options.lineWrapping||(c=Sb(a.display)*b.ch);var d=ff(a.doc,b.line),e=mf(d)+mb(a.display);return{left:c,right:c,top:e,bottom:e+d.height}}function Nb(a,b,c,d){var e=oa(a,b);return e.xRel=d,c&&(e.outside=!0),e}function Ob(a,b,c){var d=a.doc;if(c+=a.display.viewOffset,0>c)return Nb(d.first,0,!0,-1);var e=lf(d,c),f=d.first+d.size-1;if(e>f)return Nb(d.first+d.size-1,ff(d,f).text.length,!0,1);0>b&&(b=0);for(var g=ff(d,e);;){var h=Pb(a,g,e,b,c),i=qe(g),j=i&&i.find(0,!0);if(!i||!(h.ch>j.from.ch||h.ch==j.from.ch&&h.xRel>0))return h;e=kf(g=j.to.line)}}function Pb(a,b,c,d,e){function j(d){var e=Lb(a,oa(c,d),"line",b,i);return g=!0,f>e.bottom?e.left-h:fq)return Nb(c,n,r,1);for(;;){if(k?n==m||n==$g(b,m,1):1>=n-m){for(var s=o>d||q-d>=d-o?m:n,t=d-(s==m?o:q);og(b.text.charAt(s));)++s;var u=Nb(c,s,s==m?p:r,-1>t?-1:t>1?1:0);return u}var v=Math.ceil(l/2),w=m+v;if(k){w=m;for(var x=0;v>x;++x)w=$g(b,w,1)}var y=j(w);y>d?(n=w,q=y,(r=g)&&(q+=1e3),l=v):(m=w,o=y,p=g,l-=v)}}function Rb(a){if(null!=a.cachedTextHeight)return a.cachedTextHeight;if(null==Qb){Qb=pg("pre");for(var b=0;49>b;++b)Qb.appendChild(document.createTextNode("x")),Qb.appendChild(pg("br"));Qb.appendChild(document.createTextNode("x"))}sg(a.measure,Qb);var c=Qb.offsetHeight/50;return c>3&&(a.cachedTextHeight=c),rg(a.measure),c||1}function Sb(a){if(null!=a.cachedCharWidth)return a.cachedCharWidth;var b=pg("span","xxxxxxxxxx"),c=pg("pre",[b]);sg(a.measure,c);var d=b.getBoundingClientRect(),e=(d.right-d.left)/10;return e>2&&(a.cachedCharWidth=e),e||10}function Vb(a){a.curOp={cm:a,viewChanged:!1,startHeight:a.doc.height,forceUpdate:!1,updateInput:null,typing:!1,changeObjs:null,cursorActivityHandlers:null,cursorActivityCalled:0,selectionChanged:!1,updateMaxLine:!1,scrollLeft:null,scrollTop:null,scrollToPos:null,focus:!1,id:++Ub},Tb?Tb.ops.push(a.curOp):a.curOp.ownsGroup=Tb={ops:[a.curOp],delayedCallbacks:[]}}function Wb(a){var b=a.delayedCallbacks,c=0;do{for(;c=c.viewTo)||c.maxLineChanged&&b.options.lineWrapping,a.update=a.mustUpdate&&new U(b,a.mustUpdate&&{top:a.scrollTop,ensure:a.scrollToPos},a.forceUpdate)}function $b(a){a.updatedDisplay=a.mustUpdate&&W(a.cm,a.update)}function _b(a){var b=a.cm,c=b.display;a.updatedDisplay&&$(b),a.barMeasure=J(b),c.maxLineChanged&&!b.options.lineWrapping&&(a.adjustWidthTo=vb(b,c.maxLine,c.maxLine.text.length).left+3,b.display.sizerWidth=a.adjustWidthTo,a.barMeasure.scrollWidth=Math.max(c.scroller.clientWidth,c.sizer.offsetLeft+a.adjustWidthTo+pb(b)+b.display.barWidth),a.maxScrollLeft=Math.max(0,c.sizer.offsetLeft+a.adjustWidthTo-qb(b))),(a.updatedDisplay||a.selectionChanged)&&(a.preparedSelection=c.input.prepareSelection())}function ac(a){var b=a.cm;null!=a.adjustWidthTo&&(b.display.sizer.style.minWidth=a.adjustWidthTo+"px",a.maxScrollLeftf;f=e){var g=new gc(a.doc,ff(a.doc,f),f);e=f+g.size,d.push(g)}return d}function ic(a,b,c,d){null==b&&(b=a.doc.first),null==c&&(c=a.doc.first+a.doc.size),d||(d=0);var e=a.display;if(d&&cb)&&(e.updateLineNumbers=b),a.curOp.viewChanged=!0,b>=e.viewTo)u&&ue(a.doc,b)e.viewFrom?kc(a):(e.viewFrom+=d,e.viewTo+=d);else if(b<=e.viewFrom&&c>=e.viewTo)kc(a);else if(b<=e.viewFrom){var f=mc(a,c,c+d,1);f?(e.view=e.view.slice(f.index),e.viewFrom=f.lineN,e.viewTo+=d):kc(a)}else if(c>=e.viewTo){var f=mc(a,b,b,-1);f?(e.view=e.view.slice(0,f.index),e.viewTo=f.lineN):kc(a)}else{var g=mc(a,b,b,-1),h=mc(a,c,c+d,1);g&&h?(e.view=e.view.slice(0,g.index).concat(hc(a,g.lineN,h.lineN)).concat(e.view.slice(h.index)),e.viewTo+=d):kc(a)}var i=e.externalMeasured;i&&(c=e.lineN&&b=d.viewTo)){var f=d.view[lc(a,b)];if(null!=f.node){var g=f.changes||(f.changes=[]);-1==dg(g,c)&&g.push(c)}}}function kc(a){a.display.viewFrom=a.display.viewTo=a.doc.first,a.display.view=[],a.display.viewOffset=0}function lc(a,b){if(b>=a.display.viewTo)return null;if(b-=a.display.viewFrom,0>b)return null;for(var c=a.display.view,d=0;db)return d}function mc(a,b,c,d){var f,e=lc(a,b),g=a.display.view;if(!u||c==a.doc.first+a.doc.size)return{index:e,lineN:c};for(var h=0,i=a.display.viewFrom;e>h;h++)i+=g[h].size;if(i!=b){if(d>0){if(e==g.length-1)return null;f=i+g[e].size-b,e++}else f=i-b;b+=f,c+=f}for(;ue(a.doc,c)!=c;){if(e==(0>d?0:g.length-1))return null;c+=d*g[e-(0>d?1:0)].size,e+=d}return{index:e,lineN:c}}function nc(a,b,c){var d=a.display,e=d.view;0==e.length||b>=d.viewTo||c<=d.viewFrom?(d.view=hc(a,b,c),d.viewFrom=b):(d.viewFrom>b?d.view=hc(a,b,d.viewFrom).concat(d.view):d.viewFromc&&(d.view=d.view.slice(0,lc(a,c)))),d.viewTo=c}function oc(a){for(var b=a.display.view,c=0,d=0;d400}var b=a.display;Jf(b.scroller,"mousedown",dc(a,uc)),d&&11>e?Jf(b.scroller,"dblclick",dc(a,function(b){if(!Pf(a,b)){var c=tc(a,b);if(c&&!Bc(a,b)&&!sc(a.display,b)){Df(b);var d=a.findWordAt(c);Ta(a.doc,d.anchor,d.head)}}})):Jf(b.scroller,"dblclick",function(b){Pf(a,b)||Df(b)}),s||Jf(b.scroller,"contextmenu",function(b){_c(a,b)});var c,f={end:0};Jf(b.scroller,"touchstart",function(a){if(!h(a)){clearTimeout(c);var d=+new Date;b.activeTouch={start:d,moved:!1,prev:d-f.end<=300?f:null},1==a.touches.length&&(b.activeTouch.left=a.touches[0].pageX,b.activeTouch.top=a.touches[0].pageY)}}),Jf(b.scroller,"touchmove",function(){b.activeTouch&&(b.activeTouch.moved=!0)}),Jf(b.scroller,"touchend",function(c){var d=b.activeTouch;if(d&&!sc(b,c)&&null!=d.left&&!d.moved&&new Date-d.start<300){var f,e=a.coordsChar(b.activeTouch,"page");f=!d.prev||i(d,d.prev)?new Ka(e,e):!d.prev.prev||i(d,d.prev.prev)?a.findWordAt(e):new Ka(oa(e.line,0),Oa(a.doc,oa(e.line+1,0))),a.setSelection(f.anchor,f.head),a.focus(),Df(c)}g()}),Jf(b.scroller,"touchcancel",g),Jf(b.scroller,"scroll",function(){b.scroller.clientHeight&&(Hc(a,b.scroller.scrollTop),Ic(a,b.scroller.scrollLeft,!0),Lf(a,"scroll",a))}),Jf(b.scroller,"mousewheel",function(b){Mc(a,b)}),Jf(b.scroller,"DOMMouseScroll",function(b){Mc(a,b)}),Jf(b.wrapper,"scroll",function(){b.wrapper.scrollTop=b.wrapper.scrollLeft=0}),b.dragFunctions={enter:function(b){Pf(a,b)||Gf(b)},over:function(b){Pf(a,b)||(Fc(a,b),Gf(b))},start:function(b){Ec(a,b)},drop:dc(a,Dc),leave:function(){Gc(a)}};var j=b.input.getField();Jf(j,"keyup",function(b){Wc.call(a,b)}),Jf(j,"keydown",dc(a,Uc)),Jf(j,"keypress",dc(a,Xc)),Jf(j,"focus",ig(Zc,a)),Jf(j,"blur",ig($c,a))}function qc(a,b,c){var d=c&&c!=v.Init;if(!b!=!d){var e=a.display.dragFunctions,f=b?Jf:Kf;f(a.display.scroller,"dragstart",e.start),f(a.display.scroller,"dragenter",e.enter),f(a.display.scroller,"dragover",e.over),f(a.display.scroller,"dragleave",e.leave),f(a.display.scroller,"drop",e.drop)}}function rc(a){var b=a.display;(b.lastWrapHeight!=b.wrapper.clientHeight||b.lastWrapWidth!=b.wrapper.clientWidth)&&(b.cachedCharWidth=b.cachedTextHeight=b.cachedPaddingH=null,b.scrollbarsClipped=!1,a.setSize())}function sc(a,b){for(var c=Hf(b);c!=a.wrapper;c=c.parentNode)if(!c||1==c.nodeType&&"true"==c.getAttribute("cm-ignore-events")||c.parentNode==a.sizer&&c!=a.mover)return!0}function tc(a,b,c,d){var e=a.display;if(!c&&"true"==Hf(b).getAttribute("cm-not-content"))return null;var f,g,h=e.lineSpace.getBoundingClientRect();try{f=b.clientX-h.left,g=b.clientY-h.top}catch(b){return null}var j,i=Ob(a,f,g);if(d&&1==i.xRel&&(j=ff(a.doc,i.line).text).length==i.ch){var k=Zf(j,j.length,a.options.tabSize)-j.length;i=oa(i.line,Math.max(0,Math.round((f-ob(a.display).left)/Sb(a.display))-k))}return i}function uc(a){var b=this,c=b.display;if(!(c.activeTouch&&c.input.supportsTouch()||Pf(b,a))){if(c.shift=a.shiftKey,sc(c,a))return void(f||(c.scroller.draggable=!1,setTimeout(function(){c.scroller.draggable=!0},100)));if(!Bc(b,a)){var d=tc(b,a);switch(window.focus(),If(a)){case 1:b.state.selectingText?b.state.selectingText(a):d?xc(b,a,d):Hf(a)==c.scroller&&Df(a);break;case 2:f&&(b.state.lastMiddleDown=+new Date),d&&Ta(b.doc,d),setTimeout(function(){c.input.focus()},20),Df(a);break;case 3:s?_c(b,a):Yc(b)}}}}function xc(a,b,c){d?setTimeout(ig(ta,a),0):a.curOp.focus=ug();var f,e=+new Date;wc&&wc.time>e-400&&0==pa(wc.pos,c)?f="triple":vc&&vc.time>e-400&&0==pa(vc.pos,c)?(f="double",wc={time:e,pos:c}):(f="single",vc={time:e,pos:c});var i,g=a.doc.sel,h=o?b.metaKey:b.ctrlKey;a.options.dragDrop&&Dg&&!ua(a)&&"single"==f&&(i=g.contains(c))>-1&&(pa((i=g.ranges[i]).from(),c)<0||c.xRel>0)&&(pa(i.to(),c)>0||c.xRel<0)?yc(a,b,c,h):zc(a,b,c,f,h)}function yc(a,b,c,g){var h=a.display,i=+new Date,j=dc(a,function(k){f&&(h.scroller.draggable=!1),a.state.draggingText=!1,Kf(document,"mouseup",j),Kf(h.scroller,"drop",j),Math.abs(b.clientX-k.clientX)+Math.abs(b.clientY-k.clientY)<10&&(Df(k),!g&&+new Date-200=p;p++){var r=ff(g,p).text,s=$f(r,m,f);m==o?e.push(new Ka(oa(p,s),oa(p,s))):r.length>s&&e.push(new Ka(oa(p,s),oa(p,$f(r,o,f))))}e.length||e.push(new Ka(c,c)),Za(g,La(j.ranges.slice(0,i).concat(e),i),{origin:"*mouse",scroll:!1}),a.scrollIntoView(b)}else{var t=h,u=t.anchor,v=b;if("single"!=d){if("double"==d)var w=a.findWordAt(b);else var w=new Ka(oa(b.line,0),Oa(g,oa(b.line+1,0)));pa(w.anchor,u)>0?(v=w.head,u=sa(t.from(),w.anchor)):(v=w.anchor,u=ra(t.to(),w.head))}var e=j.ranges.slice(0);e[i]=new Ka(Oa(g,u),v),Za(g,La(e,i),Wf)}}function r(b){var c=++q,e=tc(a,b,!0,"rect"==d);if(e)if(0!=pa(e,n)){a.curOp.focus=ug(),o(e);var h=P(f,g);(e.line>=h.to||e.linep.bottom?20:0;i&&setTimeout(dc(a,function(){q==c&&(f.scroller.scrollTop+=i,r(b))}),50)}}function s(b){a.state.selectingText=!1,q=1/0,Df(b),f.input.focus(),Kf(document,"mousemove",t),Kf(document,"mouseup",u),g.history.lastSelOrigin=null}var f=a.display,g=a.doc;Df(b);var h,i,j=g.sel,k=j.ranges;if(e&&!b.shiftKey?(i=g.sel.contains(c),h=i>-1?k[i]:new Ka(c,c)):(h=g.sel.primary(),i=g.sel.primIndex),b.altKey)d="rect",e||(h=new Ka(c,c)),c=tc(a,b,!0,!0),i=-1;else if("double"==d){var l=a.findWordAt(c);h=a.display.shift||g.extend?Sa(g,h,l.anchor,l.head):l}else if("triple"==d){var m=new Ka(oa(c.line,0),Oa(g,oa(c.line+1,0)));h=a.display.shift||g.extend?Sa(g,h,m.anchor,m.head):m}else h=Sa(g,h,c);e?-1==i?(i=k.length,Za(g,La(k.concat([h]),i),{scroll:!1,origin:"*mouse"})):k.length>1&&k[i].empty()&&"single"==d&&!b.shiftKey?(Za(g,La(k.slice(0,i).concat(k.slice(i+1)),0),{scroll:!1,origin:"*mouse"}),j=g.sel):Va(g,i,h,Wf):(i=0,Za(g,new Ja([h],0),Wf),j=g.sel);var n=c,p=f.wrapper.getBoundingClientRect(),q=0,t=dc(a,function(a){If(a)?r(a):s(a)}),u=dc(a,s);a.state.selectingText=u,Jf(document,"mousemove",t),Jf(document,"mouseup",u)}function Ac(a,b,c,d,e){try{var f=b.clientX,g=b.clientY}catch(b){return!1}if(f>=Math.floor(a.display.gutters.getBoundingClientRect().right))return!1;d&&Df(b);var h=a.display,i=h.lineDiv.getBoundingClientRect();if(g>i.bottom||!Rf(a,c))return Ff(b);g-=i.top-h.viewOffset;for(var j=0;j=f){var l=lf(a.doc,g),m=a.options.gutters[j];return e(a,c,a,l,m,b),Ff(b)}}}function Bc(a,b){return Ac(a,b,"gutterClick",!0,Nf)}function Dc(a){var b=this;if(Gc(b),!Pf(b,a)&&!sc(b.display,a)){Df(a),d&&(Cc=+new Date);var c=tc(b,a,!0),e=a.dataTransfer.files;if(c&&!ua(b))if(e&&e.length&&window.FileReader&&window.File)for(var f=e.length,g=Array(f),h=0,i=function(a,d){var e=new FileReader;e.onload=dc(b,function(){if(g[d]=e.result,++h==f){c=Oa(b.doc,c);var a={from:c,to:c,text:b.doc.splitLines(g.join(b.doc.lineSeparator())),origin:"paste"};hd(b.doc,a),Ya(b.doc,Ma(c,bd(a)))}}),e.readAsText(a)},j=0;f>j;++j)i(e[j],j);else{if(b.state.draggingText&&b.doc.sel.contains(c)>-1)return b.state.draggingText(a),void setTimeout(function(){b.display.input.focus()},20);try{var g=a.dataTransfer.getData("Text");if(g){if(b.state.draggingText&&!(o?a.altKey:a.ctrlKey))var k=b.listSelections();if($a(b.doc,Ma(c,c)),k)for(var j=0;jj.clientWidth||g&&j.scrollHeight>j.clientHeight){if(g&&o&&f)a:for(var k=c.target,l=h.view;k!=j;k=k.parentNode)for(var m=0;mn?p=Math.max(0,p+n-50):q=Math.min(b.doc.height,q+n+50),Y(b,{top:p,bottom:q})}20>Jc&&(null==h.wheelStartX?(h.wheelStartX=j.scrollLeft,h.wheelStartY=j.scrollTop,h.wheelDX=e,h.wheelDY=g,setTimeout(function(){if(null!=h.wheelStartX){var a=j.scrollLeft-h.wheelStartX,b=j.scrollTop-h.wheelStartY,c=b&&h.wheelDY&&b/h.wheelDY||a&&h.wheelDX&&a/h.wheelDX;h.wheelStartX=h.wheelStartY=null,c&&(Kc=(Kc*Jc+c)/(Jc+1),++Jc)}},200)):(h.wheelDX+=e,h.wheelDY+=g))}}function Nc(a,b,c){if("string"==typeof b&&(b=Ld[b],!b))return!1;a.display.input.ensurePolled();var d=a.display.shift,e=!1;try{ua(a)&&(a.state.suppressEdits=!0),c&&(a.display.shift=!1),e=b(a)!=Uf}finally{a.display.shift=d,a.state.suppressEdits=!1}return e}function Oc(a,b,c){for(var d=0;de&&27==a.keyCode&&(a.returnValue=!1);var c=a.keyCode;b.display.shift=16==c||a.shiftKey;var f=Rc(b,a);i&&(Tc=f?c:null,!f&&88==c&&!Kg&&(o?a.metaKey:a.ctrlKey)&&b.replaceSelection("",null,"cut")),18!=c||/\bCodeMirror-crosshair\b/.test(b.display.lineDiv.className)||Vc(b)}}function Vc(a){function c(a){18!=a.keyCode&&a.altKey||(wg(b,"CodeMirror-crosshair"),Kf(document,"keyup",c),Kf(document,"mouseover",c))}var b=a.display.lineDiv;xg(b,"CodeMirror-crosshair"),Jf(document,"keyup",c),Jf(document,"mouseover",c)}function Wc(a){16==a.keyCode&&(this.doc.sel.shift=!1),Pf(this,a)}function Xc(a){var b=this;if(!(sc(b.display,a)||Pf(b,a)||a.ctrlKey&&!a.altKey||o&&a.metaKey)){var c=a.keyCode,d=a.charCode;if(i&&c==Tc)return Tc=null,void Df(a);if(!i||a.which&&!(a.which<10)||!Rc(b,a)){var e=String.fromCharCode(null==d?c:d);Sc(b,a,e)||b.display.input.onKeyPress(a)}}}function Yc(a){a.state.delayingBlurEvent=!0,setTimeout(function(){a.state.delayingBlurEvent&&(a.state.delayingBlurEvent=!1,$c(a))},100)}function Zc(a){a.state.delayingBlurEvent&&(a.state.delayingBlurEvent=!1),"nocursor"!=a.options.readOnly&&(a.state.focused||(Lf(a,"focus",a),a.state.focused=!0,xg(a.display.wrapper,"CodeMirror-focused"),a.curOp||a.display.selForContextMenu==a.doc.sel||(a.display.input.reset(),f&&setTimeout(function(){a.display.input.reset(!0)},20)),a.display.input.receivedFocus()),hb(a))}function $c(a){a.state.delayingBlurEvent||(a.state.focused&&(Lf(a,"blur",a),a.state.focused=!1,wg(a.display.wrapper,"CodeMirror-focused")),clearInterval(a.display.blinker),setTimeout(function(){a.state.focused||(a.display.shift=!1)},150))}function _c(a,b){sc(a.display,b)||ad(a,b)||a.display.input.onContextMenu(b)}function ad(a,b){return Rf(a,"gutterContextMenu")?Ac(a,b,"gutterContextMenu",!1,Lf):!1}function cd(a,b){if(pa(a,b.from)<0)return a;if(pa(a,b.to)<=0)return bd(b);var c=a.line+b.text.length-(b.to.line-b.from.line)-1,d=a.ch;return a.line==b.to.line&&(d+=bd(b).ch-b.to.ch),oa(c,d)}function dd(a,b){for(var c=[],d=0;d=0;--e)id(a,{from:d[e].from,to:d[e].to,text:e?[""]:b.text});else id(a,b)}}function id(a,b){if(1!=b.text.length||""!=b.text[0]||0!=pa(b.from,b.to)){var c=dd(a,b);sf(a,b,c,a.cm?a.cm.curOp.id:NaN),ld(a,b,c,fe(a,b));var d=[];df(a,function(a,c){c||-1!=dg(d,a.history)||(Cf(a.history,b),d.push(a.history)),ld(a,b,null,fe(a,b))})}}function jd(a,b,c){if(!a.cm||!a.cm.state.suppressEdits){for(var e,d=a.history,f=a.sel,g="undo"==b?d.done:d.undone,h="undo"==b?d.undone:d.done,i=0;i=0;--i){var l=e.changes[i];if(l.origin=b,k&&!gd(a,l,!1))return void(g.length=0);j.push(pf(a,l));var m=i?dd(a,l):bg(g);ld(a,l,m,he(a,l)),!i&&a.cm&&a.cm.scrollIntoView({from:l.from,to:bd(l)});var n=[];df(a,function(a,b){b||-1!=dg(n,a.history)||(Cf(a.history,l),n.push(a.history)),ld(a,l,null,he(a,l))})}}}}function kd(a,b){if(0!=b&&(a.first+=b,a.sel=new Ja(eg(a.sel.ranges,function(a){return new Ka(oa(a.anchor.line+b,a.anchor.ch),oa(a.head.line+b,a.head.ch))}),a.sel.primIndex),a.cm)){ic(a.cm,a.first,a.first-b,b);for(var c=a.cm.display,d=c.viewFrom;da.lastLine())){if(b.from.linef&&(b={from:b.from,to:oa(f,ff(a,f).text.length),text:[b.text[0]],origin:b.origin}),b.removed=gf(a,b.from,b.to),c||(c=dd(a,b)),a.cm?md(a.cm,b,d):Ye(a,b,d),$a(a,c,Vf)}}function md(a,b,c){var d=a.doc,e=a.display,f=b.from,g=b.to,h=!1,i=f.line;a.options.lineWrapping||(i=kf(se(ff(d,f.line))),d.iter(i,g.line+1,function(a){return a==e.maxLine?(h=!0,!0):void 0})),d.sel.contains(b.from,b.to)>-1&&Qf(a),Ye(d,b,c,A(a)),a.options.lineWrapping||(d.iter(i,f.line+b.text.length,function(a){var b=G(a);b>e.maxLineLength&&(e.maxLine=a,e.maxLineLength=b,e.maxLineChanged=!0,h=!1)}),h&&(a.curOp.updateMaxLine=!0)),d.frontier=Math.min(d.frontier,f.line),ib(a,400);var j=b.text.length-(g.line-f.line)-1;b.full?ic(a):f.line!=g.line||1!=b.text.length||Xe(a.doc,b)?ic(a,f.line,g.line+1,j):jc(a,f.line,"text");var k=Rf(a,"changes"),l=Rf(a,"change");if(l||k){var m={from:f,to:g,text:b.text,removed:b.removed,origin:b.origin};l&&Nf(a,"change",a,m),k&&(a.curOp.changeObjs||(a.curOp.changeObjs=[])).push(m)}a.display.selForContextMenu=null}function nd(a,b,c,d,e){if(d||(d=c),pa(d,c)<0){var f=d;d=c,c=f}"string"==typeof b&&(b=a.splitLines(b)),hd(a,{from:c,to:d,text:b,origin:e})}function od(a,b){if(!Pf(a,"scrollCursorIntoView")){var c=a.display,d=c.sizer.getBoundingClientRect(),e=null;if(b.top+d.top<0?e=!0:b.bottom+d.top>(window.innerHeight||document.documentElement.clientHeight)&&(e=!1),null!=e&&!l){var f=pg("div","\u200b",null,"position: absolute; top: "+(b.top-c.viewOffset-mb(a.display))+"px; height: "+(b.bottom-b.top+pb(a)+c.barHeight)+"px; left: "+b.left+"px; width: 2px;");a.display.lineSpace.appendChild(f),f.scrollIntoView(e),a.display.lineSpace.removeChild(f)}}}function pd(a,b,c,d){null==d&&(d=0);for(var e=0;5>e;e++){var 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c=0;c=0&&0>=l||0>=k&&l>=0)&&(0>=k&&(pa(j.to,c)>0||i.marker.inclusiveRight&&e.inclusiveLeft)||k>=0&&(pa(j.from,d)<0||i.marker.inclusiveLeft&&e.inclusiveRight)))return!0}}}function se(a){for(var b;b=pe(a);)a=b.find(-1,!0).line;return a}function te(a){for(var b,c;b=qe(a);)a=b.find(1,!0).line,(c||(c=[])).push(a);return c}function ue(a,b){var c=ff(a,b),d=se(c);return c==d?b:kf(d)}function ve(a,b){if(b>a.lastLine())return b;var d,c=ff(a,b);if(!we(a,c))return b;for(;d=qe(c);)c=d.find(1,!0).line;return kf(c)+1}function we(a,b){var c=u&&b.markedSpans;if(c)for(var d,e=0;ee;e++){d&&(d[0]=v.innerMode(a,c).mode);var f=a.token(b,c);if(b.pos>b.start)return f}throw new Error("Mode "+a.name+" failed to advance stream.")}function Ie(a,b,c,d){function e(a){return{start:k.start,end:k.pos,string:k.current(),type:h||null,state:a?Jd(f.mode,j):j}}var h,f=a.doc,g=f.mode;b=Oa(f,b);var l,i=ff(f,b.line),j=lb(a,b.line,c),k=new 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c=b.addModeClass?Oe:Ne;return c[a]||(c[a]=a.replace(/\S+/g,"cm-$&"))}function Qe(a,b){var c=pg("span",null,null,f?"padding-right: .1px":null),e={pre:pg("pre",[c],"CodeMirror-line"),content:c,col:0,pos:0,cm:a,splitSpaces:(d||f)&&a.getOption("lineWrapping")};b.measure={};for(var g=0;g<=(b.rest?b.rest.length:0);g++){var i,h=g?b.rest[g-1]:b.line;e.pos=0,e.addToken=Se,Hg(a.display.measure)&&(i=nf(h))&&(e.addToken=Ue(e.addToken,i)),e.map=[];var j=b!=a.display.externalMeasured&&kf(h);We(h,e,Le(a,h,j)),h.styleClasses&&(h.styleClasses.bgClass&&(e.bgClass=yg(h.styleClasses.bgClass,e.bgClass||"")),h.styleClasses.textClass&&(e.textClass=yg(h.styleClasses.textClass,e.textClass||""))),0==e.map.length&&e.map.push(0,0,e.content.appendChild(Fg(a.display.measure))),0==g?(b.measure.map=e.map,b.measure.cache={}):((b.measure.maps||(b.measure.maps=[])).push(e.map),(b.measure.caches||(b.measure.caches=[])).push({}))}return 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a=o&&!k?"12px":"18px";this.horiz.style.minHeight=this.vert.style.minWidth=a;var b=this,c=function(a){Hf(a)!=b.vert&&Hf(a)!=b.horiz&&dc(b.cm,uc)(a)};Jf(this.vert,"mousedown",c),Jf(this.horiz,"mousedown",c)},clear:function(){var a=this.horiz.parentNode;a.removeChild(this.horiz),a.removeChild(this.vert)}},K.prototype),L.prototype=hg({update:function(){return{bottom:0,right:0}},setScrollLeft:function(){},setScrollTop:function(){},clear:function(){}},L.prototype),v.scrollbarModel={"native":K,"null":L},U.prototype.signal=function(a,b){Rf(a,b)&&this.events.push(arguments)},U.prototype.finish=function(){for(var a=0;a=9&&b.hasSelection&&(b.hasSelection=null),b.poll()}),Jf(g,"paste",function(a){return xa(a,c)?!0:(c.state.pasteIncoming=!0,void b.fastPoll())}),Jf(g,"cut",h),Jf(g,"copy",h),Jf(a.scroller,"paste",function(d){sc(a,d)||(c.state.pasteIncoming=!0,b.focus())}),Jf(a.lineSpace,"selectstart",function(b){sc(a,b)||Df(b)}),Jf(g,"compositionstart",function(){var a=c.getCursor("from");b.composing&&b.composing.range.clear(), +b.composing={start:a,range:c.markText(a,c.getCursor("to"),{className:"CodeMirror-composing"})}}),Jf(g,"compositionend",function(){b.composing&&(b.poll(),b.composing.range.clear(),b.composing=null)})},prepareSelection:function(){var a=this.cm,b=a.display,c=a.doc,d=eb(a);if(a.options.moveInputWithCursor){var e=Lb(a,c.sel.primary().head,"div"),f=b.wrapper.getBoundingClientRect(),g=b.lineDiv.getBoundingClientRect();d.teTop=Math.max(0,Math.min(b.wrapper.clientHeight-10,e.top+g.top-f.top)),d.teLeft=Math.max(0,Math.min(b.wrapper.clientWidth-10,e.left+g.left-f.left))}return d},showSelection:function(a){var b=this.cm,c=b.display;sg(c.cursorDiv,a.cursors),sg(c.selectionDiv,a.selection),null!=a.teTop&&(this.wrapper.style.top=a.teTop+"px",this.wrapper.style.left=a.teLeft+"px")},reset:function(a){if(!this.contextMenuPending){var b,c,f=this.cm,g=f.doc;if(f.somethingSelected()){this.prevInput="";var h=g.sel.primary();b=Kg&&(h.to().line-h.from().line>100||(c=f.getSelection()).length>1e3);var i=b?"-":c||f.getSelection();this.textarea.value=i,f.state.focused&&cg(this.textarea),d&&e>=9&&(this.hasSelection=i)}else a||(this.prevInput=this.textarea.value="",d&&e>=9&&(this.hasSelection=null));this.inaccurateSelection=b}},getField:function(){return this.textarea},supportsTouch:function(){return!1},focus:function(){if("nocursor"!=this.cm.options.readOnly&&(!n||ug()!=this.textarea))try{this.textarea.focus()}catch(a){}},blur:function(){this.textarea.blur()},resetPosition:function(){this.wrapper.style.top=this.wrapper.style.left=0},receivedFocus:function(){this.slowPoll()},slowPoll:function(){var a=this;a.pollingFast||a.polling.set(this.cm.options.pollInterval,function(){a.poll(),a.cm.state.focused&&a.slowPoll()})},fastPoll:function(){function c(){var d=b.poll();d||a?(b.pollingFast=!1,b.slowPoll()):(a=!0,b.polling.set(60,c))}var a=!1,b=this;b.pollingFast=!0,b.polling.set(20,c)},poll:function(){var a=this.cm,b=this.textarea,c=this.prevInput;if(this.contextMenuPending||!a.state.focused||Jg(b)&&!c&&!this.composing||ua(a)||a.options.disableInput||a.state.keySeq)return!1;var f=b.value;if(f==c&&!a.somethingSelected())return!1;if(d&&e>=9&&this.hasSelection===f||o&&/[\uf700-\uf7ff]/.test(f))return a.display.input.reset(),!1;if(a.doc.sel==a.display.selForContextMenu){var g=f.charCodeAt(0);if(8203!=g||c||(c="\u200b"),8666==g)return this.reset(),this.cm.execCommand("undo")}for(var h=0,i=Math.min(c.length,f.length);i>h&&c.charCodeAt(h)==f.charCodeAt(h);)++h;var j=this;return cc(a,function(){wa(a,f.slice(h),c.length-h,null,j.composing?"*compose":null),f.length>1e3||f.indexOf("\n")>-1?b.value=j.prevInput="":j.prevInput=f,j.composing&&(j.composing.range.clear(),j.composing.range=a.markText(j.composing.start,a.getCursor("to"),{className:"CodeMirror-composing"}))}),!0},ensurePolled:function(){this.pollingFast&&this.poll()&&(this.pollingFast=!1)},onKeyPress:function(){d&&e>=9&&(this.hasSelection=null),this.fastPoll()},onContextMenu:function(a){function o(){if(null!=h.selectionStart){var a=c.somethingSelected(),d="\u200b"+(a?h.value:"");h.value="\u21da",h.value=d,b.prevInput=a?"":"\u200b",h.selectionStart=1,h.selectionEnd=d.length,g.selForContextMenu=c.doc.sel}}function p(){if(b.contextMenuPending=!1,b.wrapper.style.position="relative",h.style.cssText=m,d&&9>e&&g.scrollbars.setScrollTop(g.scroller.scrollTop=k),null!=h.selectionStart){(!d||d&&9>e)&&o();var a=0,f=function(){g.selForContextMenu==c.doc.sel&&0==h.selectionStart&&h.selectionEnd>0&&"\u200b"==b.prevInput?dc(c,Ld.selectAll)(c):a++<10?g.detectingSelectAll=setTimeout(f,500):g.input.reset()};g.detectingSelectAll=setTimeout(f,200)}}var b=this,c=b.cm,g=c.display,h=b.textarea,j=tc(c,a),k=g.scroller.scrollTop;if(j&&!i){var l=c.options.resetSelectionOnContextMenu;l&&-1==c.doc.sel.contains(j)&&dc(c,Za)(c.doc,Ma(j),Vf);var m=h.style.cssText;if(b.wrapper.style.position="absolute",h.style.cssText="position: fixed; width: 30px; height: 30px; top: "+(a.clientY-5)+"px; left: "+(a.clientX-5)+"px; z-index: 1000; background: "+(d?"rgba(255, 255, 255, .05)":"transparent")+"; outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);",f)var n=window.scrollY;if(g.input.focus(),f&&window.scrollTo(null,n),g.input.reset(),c.somethingSelected()||(h.value=b.prevInput=" "),b.contextMenuPending=!0,g.selForContextMenu=c.doc.sel,clearTimeout(g.detectingSelectAll),d&&e>=9&&o(),s){Gf(a);var q=function(){Kf(window,"mouseup",q),setTimeout(p,20)};Jf(window,"mouseup",q)}else setTimeout(p,50)}},setUneditable:fg,needsContentAttribute:!1},Ba.prototype),Da.prototype=hg({init:function(a){function e(a){if(c.somethingSelected())va=c.getSelections(),"cut"==a.type&&c.replaceSelection("",null,"cut");else{if(!c.options.lineWiseCopyCut)return;var b=za(c);va=b.text,"cut"==a.type&&c.operation(function(){c.setSelections(b.ranges,0,Vf),c.replaceSelection("",null,"cut")})}if(a.clipboardData&&!m)a.preventDefault(),a.clipboardData.clearData(),a.clipboardData.setData("text/plain",va.join("\n"));else{var d=Ca(),e=d.firstChild;c.display.lineSpace.insertBefore(d,c.display.lineSpace.firstChild),e.value=va.join("\n");var f=document.activeElement;cg(e),setTimeout(function(){c.display.lineSpace.removeChild(d),f.focus()},50)}}var b=this,c=b.cm,d=b.div=a.lineDiv;d.contentEditable="true",Aa(d),Jf(d,"paste",function(a){xa(a,c)}),Jf(d,"compositionstart",function(a){var d=a.data;if(b.composing={sel:c.doc.sel,data:d,startData:d},d){var e=c.doc.sel.primary(),f=c.getLine(e.head.line),g=f.indexOf(d,Math.max(0,e.head.ch-d.length));g>-1&&g<=e.head.ch&&(b.composing.sel=Ma(oa(e.head.line,g),oa(e.head.line,g+d.length)))}}),Jf(d,"compositionupdate",function(a){b.composing.data=a.data}),Jf(d,"compositionend",function(a){var c=b.composing;c&&(a.data==c.startData||/\u200b/.test(a.data)||(c.data=a.data),setTimeout(function(){c.handled||b.applyComposition(c),b.composing==c&&(b.composing=null)},50))}),Jf(d,"touchstart",function(){b.forceCompositionEnd()}),Jf(d,"input",function(){b.composing||b.pollContent()||cc(b.cm,function(){ic(c)})}),Jf(d,"copy",e),Jf(d,"cut",e)},prepareSelection:function(){var a=eb(this.cm,!1);return a.focus=this.cm.state.focused,a},showSelection:function(a){a&&this.cm.display.view.length&&(a.focus&&this.showPrimarySelection(),this.showMultipleSelections(a))},showPrimarySelection:function(){var b=window.getSelection(),c=this.cm.doc.sel.primary(),d=Ga(this.cm,b.anchorNode,b.anchorOffset),e=Ga(this.cm,b.focusNode,b.focusOffset);if(!d||d.bad||!e||e.bad||0!=pa(sa(d,e),c.from())||0!=pa(ra(d,e),c.to())){var f=Ea(this.cm,c.from()),g=Ea(this.cm,c.to());if(f||g){var h=this.cm.display.view,i=b.rangeCount&&b.getRangeAt(0);if(f){if(!g){var j=h[h.length-1].measure,k=j.maps?j.maps[j.maps.length-1]:j.map;g={node:k[k.length-1],offset:k[k.length-2]-k[k.length-3]}}}else f={node:h[0].measure.map[2],offset:0};try{var l=qg(f.node,f.offset,g.offset,g.node)}catch(m){}l&&(b.removeAllRanges(),b.addRange(l),i&&null==b.anchorNode?b.addRange(i):a&&this.startGracePeriod()),this.rememberSelection()}}},startGracePeriod:function(){var a=this;clearTimeout(this.gracePeriod),this.gracePeriod=setTimeout(function(){a.gracePeriod=!1,a.selectionChanged()&&a.cm.operation(function(){a.cm.curOp.selectionChanged=!0})},20)},showMultipleSelections:function(a){sg(this.cm.display.cursorDiv,a.cursors),sg(this.cm.display.selectionDiv,a.selection)},rememberSelection:function(){var a=window.getSelection();this.lastAnchorNode=a.anchorNode,this.lastAnchorOffset=a.anchorOffset,this.lastFocusNode=a.focusNode,this.lastFocusOffset=a.focusOffset},selectionInEditor:function(){var a=window.getSelection();if(!a.rangeCount)return!1;var b=a.getRangeAt(0).commonAncestorContainer;return tg(this.div,b)},focus:function(){"nocursor"!=this.cm.options.readOnly&&this.div.focus()},blur:function(){this.div.blur()},getField:function(){return this.div},supportsTouch:function(){return!0},receivedFocus:function(){function b(){a.cm.state.focused&&(a.pollSelection(),a.polling.set(a.cm.options.pollInterval,b))}var a=this;this.selectionInEditor()?this.pollSelection():cc(this.cm,function(){a.cm.curOp.selectionChanged=!0}),this.polling.set(this.cm.options.pollInterval,b)},selectionChanged:function(){var a=window.getSelection();return a.anchorNode!=this.lastAnchorNode||a.anchorOffset!=this.lastAnchorOffset||a.focusNode!=this.lastFocusNode||a.focusOffset!=this.lastFocusOffset},pollSelection:function(){if(!this.composing&&!this.gracePeriod&&this.selectionChanged()){var a=window.getSelection(),b=this.cm;this.rememberSelection();var c=Ga(b,a.anchorNode,a.anchorOffset),d=Ga(b,a.focusNode,a.focusOffset);c&&d&&cc(b,function(){Za(b.doc,Ma(c,d),Vf),(c.bad||d.bad)&&(b.curOp.selectionChanged=!0)})}},pollContent:function(){var a=this.cm,b=a.display,c=a.doc.sel.primary(),d=c.from(),e=c.to();if(d.lineb.viewTo-1)return!1;var f;if(d.line==b.viewFrom||0==(f=lc(a,d.line)))var g=kf(b.view[0].line),h=b.view[0].node;else var g=kf(b.view[f].line),h=b.view[f-1].node.nextSibling;var i=lc(a,e.line);if(i==b.view.length-1)var 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0},ensurePolled:function(){this.forceCompositionEnd()},reset:function(){this.forceCompositionEnd()},forceCompositionEnd:function(){this.composing&&!this.composing.handled&&(this.applyComposition(this.composing),this.composing.handled=!0,this.div.blur(),this.div.focus())},applyComposition:function(a){a.data&&a.data!=a.startData&&dc(this.cm,wa)(this.cm,a.data,0,a.sel)},setUneditable:function(a){a.setAttribute("contenteditable","false")},onKeyPress:function(a){a.preventDefault(),dc(this.cm,wa)(this.cm,String.fromCharCode(null==a.charCode?a.keyCode:a.charCode),0)},onContextMenu:fg,resetPosition:fg,needsContentAttribute:!0},Da.prototype),v.inputStyles={textarea:Ba,contenteditable:Da},Ja.prototype={primary:function(){return this.ranges[this.primIndex]},equals:function(a){if(a==this)return!0;if(a.primIndex!=this.primIndex||a.ranges.length!=this.ranges.length)return!1;for(var b=0;b=0&&pa(a,d.to())<=0)return c}return-1}},Ka.prototype={from:function(){return 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this.doc},addKeyMap:function(a,b){this.state.keyMaps[b?"push":"unshift"](Rd(a))},removeKeyMap:function(a){for(var b=this.state.keyMaps,c=0;cc&&(vd(this,e.head.line,a,!0),c=e.head.line,d==this.doc.sel.primIndex&&td(this));else{var f=e.from(),g=e.to(),h=Math.max(c,f.line);c=Math.min(this.lastLine(),g.line-(g.ch?0:1))+1;for(var i=h;c>i;++i)vd(this,i,a);var j=this.doc.sel.ranges;0==f.ch&&b.length==j.length&&j[d].from().ch>0&&Va(this.doc,d,new Ka(f,j[d].to()),Vf)}}}),getTokenAt:function(a,b){return Ie(this,a,b)},getLineTokens:function(a,b){return Ie(this,oa(a),b,!0)},getTokenTypeAt:function(a){a=Oa(this.doc,a);var f,b=Le(this,ff(this.doc,a.line)),c=0,d=(b.length-1)/2,e=a.ch;if(0==e)f=b[2];else for(;;){var g=c+d>>1;if((g?b[2*g-1]:0)>=e)d=g;else{if(!(b[2*g+1]h?f:0==h?null:f.slice(0,h-1)},getModeAt:function(a){var b=this.doc.mode;return b.innerMode?v.innerMode(b,this.getTokenAt(a).state).mode:b},getHelper:function(a,b){return this.getHelpers(a,b)[0]},getHelpers:function(a,b){var c=[];if(!Id.hasOwnProperty(b))return c;var d=Id[b],e=this.getModeAt(a);if("string"==typeof e[b])d[e[b]]&&c.push(d[e[b]]);else if(e[b])for(var f=0;fe&&(a=e,c=!0),d=ff(this.doc,a)}else d=a;return Ib(this,d,{top:0,left:0},b||"page").top+(c?this.doc.height-mf(d):0)},defaultTextHeight:function(){return Rb(this.display)},defaultCharWidth:function(){return Sb(this.display)},setGutterMarker:ec(function(a,b,c){return wd(this.doc,a,"gutter",function(a){var d=a.gutterMarkers||(a.gutterMarkers={});return d[b]=c,!c&&mg(d)&&(a.gutterMarkers=null),!0})}),clearGutter:ec(function(a){var b=this,c=b.doc,d=c.first;c.iter(function(c){c.gutterMarkers&&c.gutterMarkers[a]&&(c.gutterMarkers[a]=null,jc(b,d,"gutter"),mg(c.gutterMarkers)&&(c.gutterMarkers=null)),++d})}),lineInfo:function(a){if("number"==typeof a){if(!Qa(this.doc,a))return null;var b=a;if(a=ff(this.doc,a),!a)return null}else{var b=kf(a);if(null==b)return null}return{line:b,handle:a,text:a.text,gutterMarkers:a.gutterMarkers,textClass:a.textClass,bgClass:a.bgClass,wrapClass:a.wrapClass,widgets:a.widgets}},getViewport:function(){return{from:this.display.viewFrom,to:this.display.viewTo}},addWidget:function(a,b,c,d,e){var f=this.display;a=Lb(this,Oa(this.doc,a));var g=a.bottom,h=a.left;if(b.style.position="absolute",b.setAttribute("cm-ignore-events","true"),this.display.input.setUneditable(b),f.sizer.appendChild(b),"over"==d)g=a.top;else if("above"==d||"near"==d){var i=Math.max(f.wrapper.clientHeight,this.doc.height),j=Math.max(f.sizer.clientWidth,f.lineSpace.clientWidth);("above"==d||a.bottom+b.offsetHeight>i)&&a.top>b.offsetHeight?g=a.top-b.offsetHeight:a.bottom+b.offsetHeight<=i&&(g=a.bottom),h+b.offsetWidth>j&&(h=j-b.offsetWidth)}b.style.top=g+"px",b.style.left=b.style.right="","right"==e?(h=f.sizer.clientWidth-b.offsetWidth,b.style.right="0px"):("left"==e?h=0:"middle"==e&&(h=(f.sizer.clientWidth-b.offsetWidth)/2),b.style.left=h+"px"),c&&qd(this,h,g,h+b.offsetWidth,g+b.offsetHeight)},triggerOnKeyDown:ec(Uc),triggerOnKeyPress:ec(Xc),triggerOnKeyUp:Wc,execCommand:function(a){return Ld.hasOwnProperty(a)?Ld[a].call(null,this):void 0},triggerElectric:ec(function(a){ya(this,a)}),findPosH:function(a,b,c,d){var e=1;0>b&&(e=-1,b=-b);for(var f=0,g=Oa(this.doc,a);b>f&&(g=yd(this.doc,g,e,c,d),!g.hitSide);++f);return g},moveH:ec(function(a,b){var c=this;c.extendSelectionsBy(function(d){return c.display.shift||c.doc.extend||d.empty()?yd(c.doc,d.head,a,b,c.options.rtlMoveVisually):0>a?d.from():d.to()},Xf)}),deleteH:ec(function(a,b){var c=this.doc.sel,d=this.doc;c.somethingSelected()?d.replaceSelection("",null,"+delete"):xd(this,function(c){var e=yd(d,c.head,a,b,!1);return 0>a?{from:e,to:c.head}:{from:c.head,to:e}})}),findPosV:function(a,b,c,d){var e=1,f=d;0>b&&(e=-1,b=-b);for(var g=0,h=Oa(this.doc,a);b>g;++g){var i=Lb(this,h,"div");if(null==f?f=i.left:i.left=f,h=zd(this,i,e,c),h.hitSide)break}return h},moveV:ec(function(a,b){var c=this,d=this.doc,e=[],f=!c.display.shift&&!d.extend&&d.sel.somethingSelected();if(d.extendSelectionsBy(function(g){if(f)return 0>a?g.from():g.to();var h=Lb(c,g.head,"div");null!=g.goalColumn&&(h.left=g.goalColumn),e.push(h.left);var i=zd(c,h,a,b);return"page"==b&&g==d.sel.primary()&&sd(c,null,Kb(c,i,"div").top-h.top),i},Xf),e.length)for(var g=0;g0&&h(c.charAt(d-1));)--d;for(;e.5)&&B(this),Lf(this,"refresh",this)}),swapDoc:ec(function(a){var b=this.doc;return b.cm=null,ef(this,a),Fb(this),this.display.input.reset(),this.scrollTo(a.scrollLeft,a.scrollTop),this.curOp.forceScroll=!0,Nf(this,"swapDoc",this,b),b}),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}},Sf(v);var Ad=v.defaults={},Bd=v.optionHandlers={},Dd=v.Init={toString:function(){return"CodeMirror.Init"}};Cd("value","",function(a,b){a.setValue(b)},!0),Cd("mode",null,function(a,b){a.doc.modeOption=b,x(a)},!0),Cd("indentUnit",2,x,!0),Cd("indentWithTabs",!1),Cd("smartIndent",!0),Cd("tabSize",4,function(a){y(a),Fb(a),ic(a)},!0),Cd("lineSeparator",null,function(a,b){if(a.doc.lineSep=b,b){var c=[],d=a.doc.first;a.doc.iter(function(a){for(var e=0;;){var f=a.text.indexOf(b,e);if(-1==f)break;e=f+b.length,c.push(oa(d,f))}d++});for(var e=c.length-1;e>=0;e--)nd(a.doc,b,c[e],oa(c[e].line,c[e].ch+b.length))}}),Cd("specialChars",/[\t\u0000-\u0019\u00ad\u200b-\u200f\u2028\u2029\ufeff]/g,function(a,b,c){a.state.specialChars=new RegExp(b.source+(b.test(" ")?"":"| "),"g"),c!=v.Init&&a.refresh()}),Cd("specialCharPlaceholder",Re,function(a){a.refresh()},!0),Cd("electricChars",!0),Cd("inputStyle",n?"contenteditable":"textarea",function(){throw new Error("inputStyle can not (yet) be changed in a running editor")},!0),Cd("rtlMoveVisually",!p),Cd("wholeLineUpdateBefore",!0),Cd("theme","default",function(a){C(a),D(a)},!0),Cd("keyMap","default",function(a,b,c){var d=Rd(b),e=c!=v.Init&&Rd(c);e&&e.detach&&e.detach(a,d),d.attach&&d.attach(a,e||null)}),Cd("extraKeys",null),Cd("lineWrapping",!1,z,!0),Cd("gutters",[],function(a){I(a.options),D(a)},!0),Cd("fixedGutter",!0,function(a,b){a.display.gutters.style.left=b?T(a.display)+"px":"0",a.refresh()},!0),Cd("coverGutterNextToScrollbar",!1,function(a){N(a)},!0),Cd("scrollbarStyle","native",function(a){M(a),N(a),a.display.scrollbars.setScrollTop(a.doc.scrollTop),a.display.scrollbars.setScrollLeft(a.doc.scrollLeft)},!0),Cd("lineNumbers",!1,function(a){I(a.options),D(a)},!0),Cd("firstLineNumber",1,D,!0),Cd("lineNumberFormatter",function(a){return a},D,!0),Cd("showCursorWhenSelecting",!1,db,!0),Cd("resetSelectionOnContextMenu",!0),Cd("lineWiseCopyCut",!0),Cd("readOnly",!1,function(a,b){"nocursor"==b?($c(a),a.display.input.blur(),a.display.disabled=!0):(a.display.disabled=!1,b||a.display.input.reset())}),Cd("disableInput",!1,function(a,b){b||a.display.input.reset()},!0),Cd("dragDrop",!0,qc),Cd("cursorBlinkRate",530),Cd("cursorScrollMargin",0),Cd("cursorHeight",1,db,!0),Cd("singleCursorHeightPerLine",!0,db,!0),Cd("workTime",100),Cd("workDelay",100),Cd("flattenSpans",!0,y,!0),Cd("addModeClass",!1,y,!0),Cd("pollInterval",100),Cd("undoDepth",200,function(a,b){a.doc.history.undoDepth=b}),Cd("historyEventDelay",1250),Cd("viewportMargin",10,function(a){a.refresh()},!0),Cd("maxHighlightLength",1e4,y,!0),Cd("moveInputWithCursor",!0,function(a,b){b||a.display.input.resetPosition()}),Cd("tabindex",null,function(a,b){a.display.input.getField().tabIndex=b||""}),Cd("autofocus",null);var Ed=v.modes={},Fd=v.mimeModes={};v.defineMode=function(a,b){v.defaults.mode||"null"==a||(v.defaults.mode=a),arguments.length>2&&(b.dependencies=Array.prototype.slice.call(arguments,2)),Ed[a]=b},v.defineMIME=function(a,b){Fd[a]=b},v.resolveMode=function(a){if("string"==typeof a&&Fd.hasOwnProperty(a))a=Fd[a];else if(a&&"string"==typeof a.name&&Fd.hasOwnProperty(a.name)){var b=Fd[a.name];"string"==typeof b&&(b={name:b}),a=gg(b,a),a.name=b.name}else if("string"==typeof a&&/^[\w\-]+\/[\w\-]+\+xml$/.test(a))return v.resolveMode("application/xml");return"string"==typeof a?{name:a}:a||{name:"null"}},v.getMode=function(a,b){var b=v.resolveMode(b),c=Ed[b.name];if(!c)return v.getMode(a,"text/plain");var d=c(a,b);if(Gd.hasOwnProperty(b.name)){var e=Gd[b.name];for(var f in e)e.hasOwnProperty(f)&&(d.hasOwnProperty(f)&&(d["_"+f]=d[f]),d[f]=e[f])}if(d.name=b.name,b.helperType&&(d.helperType=b.helperType),b.modeProps)for(var f in b.modeProps)d[f]=b.modeProps[f];return d},v.defineMode("null",function(){return{token:function(a){a.skipToEnd()}}}),v.defineMIME("text/plain","null");var Gd=v.modeExtensions={};v.extendMode=function(a,b){var c=Gd.hasOwnProperty(a)?Gd[a]:Gd[a]={};hg(b,c)},v.defineExtension=function(a,b){v.prototype[a]=b},v.defineDocExtension=function(a,b){af.prototype[a]=b},v.defineOption=Cd;var Hd=[];v.defineInitHook=function(a){Hd.push(a)};var Id=v.helpers={};v.registerHelper=function(a,b,c){Id.hasOwnProperty(a)||(Id[a]=v[a]={_global:[]}),Id[a][b]=c},v.registerGlobalHelper=function(a,b,c,d){v.registerHelper(a,b,d),Id[a]._global.push({pred:c,val:d})};var Jd=v.copyState=function(a,b){if(b===!0)return b;if(a.copyState)return a.copyState(b);var c={};for(var d in b){var e=b[d];e instanceof Array&&(e=e.concat([])),c[d]=e}return c},Kd=v.startState=function(a,b,c){return a.startState?a.startState(b,c):!0};v.innerMode=function(a,b){for(;a.innerMode;){var c=a.innerMode(b);if(!c||c.mode==a)break;b=c.state,a=c.mode}return c||{mode:a,state:b}};var Ld=v.commands={selectAll:function(a){a.setSelection(oa(a.firstLine(),0),oa(a.lastLine()),Vf)},singleSelection:function(a){a.setSelection(a.getCursor("anchor"),a.getCursor("head"),Vf)},killLine:function(a){xd(a,function(b){if(b.empty()){var c=ff(a.doc,b.head.line).text.length;return b.head.ch==c&&b.head.line0)e=new oa(e.line,e.ch+1),a.replaceRange(f.charAt(e.ch-1)+f.charAt(e.ch-2),oa(e.line,e.ch-2),e,"+transpose");else if(e.line>a.doc.first){var g=ff(a.doc,e.line-1).text;g&&a.replaceRange(f.charAt(0)+a.doc.lineSeparator()+g.charAt(g.length-1),oa(e.line-1,g.length-1),oa(e.line,1),"+transpose")}c.push(new Ka(e,e))}a.setSelections(c)})},newlineAndIndent:function(a){cc(a,function(){for(var b=a.listSelections().length,c=0;b>c;c++){var 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j=a.current();f="."==b.lastTok?"property":c.propertyIsEnumerable(a.current())?"keyword":/^[A-Z]/.test(j)?"tag":"def"==b.lastTok||"class"==b.lastTok||b.varList?"def":"variable","keyword"==f&&(i=j,d.propertyIsEnumerable(j)?h="indent":e.propertyIsEnumerable(j)?h="dedent":"if"!=j&&"unless"!=j||a.column()!=a.indentation()?"do"==j&&b.context.indented=)|(<>)|(<<)|(>>)|(//)|(\\*\\*))"); + var doubleDelimiters = parserConf.doubleDelimiters || new RegExp("^((\\+=)|(\\-=)|(\\*=)|(%=)|(/=)|(&=)|(\\|=)|(\\^=))"); + var tripleDelimiters = parserConf.tripleDelimiters || new RegExp("^((//=)|(>>=)|(<<=)|(\\*\\*=))"); + + if (parserConf.version && parseInt(parserConf.version, 10) == 3){ + // since http://legacy.python.org/dev/peps/pep-0465/ @ is also an operator + var singleOperators = parserConf.singleOperators || new RegExp("^[\\+\\-\\*/%&|\\^~<>!@]"); + var identifiers = parserConf.identifiers|| new RegExp("^[_A-Za-z\u00A1-\uFFFF][_A-Za-z0-9\u00A1-\uFFFF]*"); + } else { + var singleOperators = parserConf.singleOperators || new RegExp("^[\\+\\-\\*/%&|\\^~<>!]"); + var identifiers = parserConf.identifiers|| new RegExp("^[_A-Za-z][_A-Za-z0-9]*"); + } + + var hangingIndent = parserConf.hangingIndent || conf.indentUnit; + + var myKeywords = commonKeywords, myBuiltins = commonBuiltins; + if(parserConf.extra_keywords != undefined){ + myKeywords = myKeywords.concat(parserConf.extra_keywords); + } + if(parserConf.extra_builtins != undefined){ + myBuiltins = myBuiltins.concat(parserConf.extra_builtins); + } + if (parserConf.version && parseInt(parserConf.version, 10) == 3) { + myKeywords = myKeywords.concat(py3.keywords); + myBuiltins = myBuiltins.concat(py3.builtins); + var stringPrefixes = new RegExp("^(([rb]|(br))?('{3}|\"{3}|['\"]))", "i"); + } else { + myKeywords = myKeywords.concat(py2.keywords); + myBuiltins = myBuiltins.concat(py2.builtins); + var stringPrefixes = new RegExp("^(([rub]|(ur)|(br))?('{3}|\"{3}|['\"]))", "i"); + } + var keywords = wordRegexp(myKeywords); + var builtins = wordRegexp(myBuiltins); + + // tokenizers + function tokenBase(stream, state) { + // Handle scope changes + if (stream.sol() && top(state).type == "py") { + var scopeOffset = top(state).offset; + if (stream.eatSpace()) { + var lineOffset = stream.indentation(); + if (lineOffset > scopeOffset) + pushScope(stream, state, "py"); + else if (lineOffset < scopeOffset && dedent(stream, state)) + state.errorToken = true; + return null; + } else { + var style = tokenBaseInner(stream, state); + if (scopeOffset > 0 && dedent(stream, state)) + style += " " + ERRORCLASS; + return style; + } + } + return tokenBaseInner(stream, state); + } + + function tokenBaseInner(stream, state) { + if (stream.eatSpace()) return null; + + var ch = stream.peek(); + + // Handle Comments + if (ch == "#") { + stream.skipToEnd(); + return "comment"; + } + + // Handle Number Literals + if (stream.match(/^[0-9\.]/, false)) { + var floatLiteral = false; + // Floats + if (stream.match(/^\d*\.\d+(e[\+\-]?\d+)?/i)) { floatLiteral = true; } + if (stream.match(/^\d+\.\d*/)) { floatLiteral = true; } + if (stream.match(/^\.\d+/)) { floatLiteral = true; } + if (floatLiteral) { + // Float literals may be "imaginary" + stream.eat(/J/i); + return "number"; + } + // Integers + var intLiteral = false; + // Hex + if (stream.match(/^0x[0-9a-f]+/i)) intLiteral = true; + // Binary + if (stream.match(/^0b[01]+/i)) intLiteral = true; + // Octal + if (stream.match(/^0o[0-7]+/i)) intLiteral = true; + // Decimal + if (stream.match(/^[1-9]\d*(e[\+\-]?\d+)?/)) { + // Decimal literals may be "imaginary" + stream.eat(/J/i); + // TODO - Can you have imaginary longs? + intLiteral = true; + } + // Zero by itself with no other piece of number. + if (stream.match(/^0(?![\dx])/i)) intLiteral = true; + if (intLiteral) { + // Integer literals may be "long" + stream.eat(/L/i); + return "number"; + } + } + + // Handle Strings + if (stream.match(stringPrefixes)) { + state.tokenize = tokenStringFactory(stream.current()); + return state.tokenize(stream, state); + } + + // Handle operators and Delimiters + if (stream.match(tripleDelimiters) || stream.match(doubleDelimiters)) + return null; + + if (stream.match(doubleOperators) || stream.match(singleOperators)) + return "operator"; + + if (stream.match(singleDelimiters)) + return null; + + if (stream.match(keywords) || stream.match(wordOperators)) + return "keyword"; + + if (stream.match(builtins)) + return "builtin"; + + if (stream.match(/^(self|cls)\b/)) + return "variable-2"; + + if (stream.match(identifiers)) { + if (state.lastToken == "def" || state.lastToken == "class") + return "def"; + return "variable"; + } + + // Handle non-detected items + stream.next(); + return ERRORCLASS; + } + + function tokenStringFactory(delimiter) { + while ("rub".indexOf(delimiter.charAt(0).toLowerCase()) >= 0) + delimiter = delimiter.substr(1); + + var singleline = delimiter.length == 1; + var OUTCLASS = "string"; + + function tokenString(stream, state) { + while (!stream.eol()) { + stream.eatWhile(/[^'"\\]/); + if (stream.eat("\\")) { + stream.next(); + if (singleline && stream.eol()) + return OUTCLASS; + } else if (stream.match(delimiter)) { + state.tokenize = tokenBase; + return OUTCLASS; + } else { + stream.eat(/['"]/); + } + } + if (singleline) { + if (parserConf.singleLineStringErrors) + return ERRORCLASS; + else + state.tokenize = tokenBase; + } + return OUTCLASS; + } + tokenString.isString = true; + return tokenString; + } + + function pushScope(stream, state, type) { + var offset = 0, align = null; + if (type == "py") { + while (top(state).type != "py") + state.scopes.pop(); + } + offset = top(state).offset + (type == "py" ? conf.indentUnit : hangingIndent); + if (type != "py" && !stream.match(/^(\s|#.*)*$/, false)) + align = stream.column() + 1; + state.scopes.push({offset: offset, type: type, align: align}); + } + + function dedent(stream, state) { + var indented = stream.indentation(); + while (top(state).offset > indented) { + if (top(state).type != "py") return true; + state.scopes.pop(); + } + return top(state).offset != indented; + } + + function tokenLexer(stream, state) { + var style = state.tokenize(stream, state); + var current = stream.current(); + + // Handle '.' connected identifiers + if (current == ".") { + style = stream.match(identifiers, false) ? null : ERRORCLASS; + if (style == null && state.lastStyle == "meta") { + // Apply 'meta' style to '.' connected identifiers when + // appropriate. + style = "meta"; + } + return style; + } + + // Handle decorators + if (current == "@"){ + if(parserConf.version && parseInt(parserConf.version, 10) == 3){ + return stream.match(identifiers, false) ? "meta" : "operator"; + } else { + return stream.match(identifiers, false) ? "meta" : ERRORCLASS; + } + } + + if ((style == "variable" || style == "builtin") + && state.lastStyle == "meta") + style = "meta"; + + // Handle scope changes. + if (current == "pass" || current == "return") + state.dedent += 1; + + if (current == "lambda") state.lambda = true; + if (current == ":" && !state.lambda && top(state).type == "py") + pushScope(stream, state, "py"); + + var delimiter_index = current.length == 1 ? "[({".indexOf(current) : -1; + if (delimiter_index != -1) + pushScope(stream, state, "])}".slice(delimiter_index, delimiter_index+1)); + + delimiter_index = "])}".indexOf(current); + if (delimiter_index != -1) { + if (top(state).type == current) state.scopes.pop(); + else return ERRORCLASS; + } + if (state.dedent > 0 && stream.eol() && top(state).type == "py") { + if (state.scopes.length > 1) state.scopes.pop(); + state.dedent -= 1; + } + + return style; + } + + var external = { + startState: function(basecolumn) { + return { + tokenize: tokenBase, + scopes: [{offset: basecolumn || 0, type: "py", align: null}], + lastStyle: null, + lastToken: null, + lambda: false, + dedent: 0 + }; + }, + + token: function(stream, state) { + var addErr = state.errorToken; + if (addErr) state.errorToken = false; + var style = tokenLexer(stream, state); + + state.lastStyle = style; + + var current = stream.current(); + if (current && style) + state.lastToken = current; + + if (stream.eol() && state.lambda) + state.lambda = false; + return addErr ? style + " " + ERRORCLASS : style; + }, + + indent: function(state, textAfter) { + if (state.tokenize != tokenBase) + return state.tokenize.isString ? CodeMirror.Pass : 0; + + var scope = top(state); + var closing = textAfter && textAfter.charAt(0) == scope.type; + if (scope.align != null) + return scope.align - (closing ? 1 : 0); + else if (closing && state.scopes.length > 1) + return state.scopes[state.scopes.length - 2].offset; + else + return scope.offset; + }, + + closeBrackets: {triples: "'\""}, + lineComment: "#", + fold: "indent" + }; + return external; + }); + + CodeMirror.defineMIME("text/x-python", "python"); + + var words = function(str) { return str.split(" "); }; + + CodeMirror.defineMIME("text/x-cython", { + name: "python", + extra_keywords: words("by cdef cimport cpdef ctypedef enum except"+ + "extern gil include nogil property public"+ + "readonly struct union DEF IF ELIF ELSE") + }); + +}); diff --git a/public/assets/codemirror/ruby.js b/public/assets/codemirror/ruby.js new file mode 100644 index 000000000..771f855ab --- /dev/null +++ b/public/assets/codemirror/ruby.js @@ -0,0 +1,285 @@ +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: http://codemirror.net/LICENSE + +(function(mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + mod(require("../../lib/codemirror")); + else if (typeof define == "function" && define.amd) // AMD + define(["../../lib/codemirror"], mod); + else // Plain browser env + mod(CodeMirror); +})(function(CodeMirror) { +"use strict"; + +CodeMirror.defineMode("ruby", function(config) { + function wordObj(words) { + var o = {}; + for (var i = 0, e = words.length; i < e; ++i) o[words[i]] = true; + return o; + } + var keywords = wordObj([ + "alias", "and", "BEGIN", "begin", "break", "case", "class", "def", "defined?", "do", "else", + "elsif", "END", "end", "ensure", "false", "for", "if", "in", "module", "next", "not", "or", + "redo", "rescue", "retry", "return", "self", "super", "then", "true", "undef", "unless", + "until", "when", "while", "yield", "nil", "raise", "throw", "catch", "fail", "loop", "callcc", + "caller", "lambda", "proc", "public", "protected", "private", "require", "load", + "require_relative", "extend", "autoload", "__END__", "__FILE__", "__LINE__", "__dir__" + ]); + var indentWords = wordObj(["def", "class", "case", "for", "while", "module", "then", + "catch", "loop", "proc", "begin"]); + var dedentWords = wordObj(["end", "until"]); + var matching = {"[": "]", "{": "}", "(": ")"}; + var curPunc; + + function chain(newtok, stream, state) { + state.tokenize.push(newtok); + return newtok(stream, state); + } + + function tokenBase(stream, state) { + if (stream.sol() && stream.match("=begin") && stream.eol()) { + state.tokenize.push(readBlockComment); + return "comment"; + } + if (stream.eatSpace()) return null; + var ch = stream.next(), m; + if (ch == "`" || ch == "'" || ch == '"') { + return chain(readQuoted(ch, "string", ch == '"' || ch == "`"), stream, state); + } else if (ch == "/") { + var currentIndex = stream.current().length; + if (stream.skipTo("/")) { + var search_till = stream.current().length; + stream.backUp(stream.current().length - currentIndex); + var balance = 0; // balance brackets + while (stream.current().length < search_till) { + var chchr = stream.next(); + if (chchr == "(") balance += 1; + else if (chchr == ")") balance -= 1; + if (balance < 0) break; + } + stream.backUp(stream.current().length - currentIndex); + if (balance == 0) + return chain(readQuoted(ch, "string-2", true), stream, state); + } + return "operator"; + } else if (ch == "%") { + var style = "string", embed = true; + if (stream.eat("s")) style = "atom"; + else if (stream.eat(/[WQ]/)) style = "string"; + else if (stream.eat(/[r]/)) style = "string-2"; + else if (stream.eat(/[wxq]/)) { style = "string"; embed = false; } + var delim = stream.eat(/[^\w\s=]/); + if (!delim) return "operator"; + if (matching.propertyIsEnumerable(delim)) delim = matching[delim]; + return chain(readQuoted(delim, style, embed, true), stream, state); + } else if (ch == "#") { + stream.skipToEnd(); + return "comment"; + } else if (ch == "<" && (m = stream.match(/^<-?[\`\"\']?([a-zA-Z_?]\w*)[\`\"\']?(?:;|$)/))) { + return chain(readHereDoc(m[1]), stream, state); + } else if (ch == "0") { + if (stream.eat("x")) stream.eatWhile(/[\da-fA-F]/); + else if (stream.eat("b")) stream.eatWhile(/[01]/); + else stream.eatWhile(/[0-7]/); + return "number"; + } else if (/\d/.test(ch)) { + stream.match(/^[\d_]*(?:\.[\d_]+)?(?:[eE][+\-]?[\d_]+)?/); + return "number"; + } else if (ch == "?") { + while (stream.match(/^\\[CM]-/)) {} + if (stream.eat("\\")) stream.eatWhile(/\w/); + else stream.next(); + return "string"; + } else if (ch == ":") { + if (stream.eat("'")) return chain(readQuoted("'", "atom", false), stream, state); + if (stream.eat('"')) return chain(readQuoted('"', "atom", true), stream, state); + + // :> :>> :< :<< are valid symbols + if (stream.eat(/[\<\>]/)) { + stream.eat(/[\<\>]/); + return "atom"; + } + + // :+ :- :/ :* :| :& :! are valid symbols + if (stream.eat(/[\+\-\*\/\&\|\:\!]/)) { + return "atom"; + } + + // Symbols can't start by a digit + if (stream.eat(/[a-zA-Z$@_\xa1-\uffff]/)) { + stream.eatWhile(/[\w$\xa1-\uffff]/); + // Only one ? ! = is allowed and only as the last character + stream.eat(/[\?\!\=]/); + return "atom"; + } + return "operator"; + } else if (ch == "@" && stream.match(/^@?[a-zA-Z_\xa1-\uffff]/)) { + stream.eat("@"); + stream.eatWhile(/[\w\xa1-\uffff]/); + return "variable-2"; + } else if (ch == "$") { + if (stream.eat(/[a-zA-Z_]/)) { + stream.eatWhile(/[\w]/); + } else if (stream.eat(/\d/)) { + stream.eat(/\d/); + } else { + stream.next(); // Must be a special global like $: or $! + } + return "variable-3"; + } else if (/[a-zA-Z_\xa1-\uffff]/.test(ch)) { + stream.eatWhile(/[\w\xa1-\uffff]/); + stream.eat(/[\?\!]/); + if (stream.eat(":")) return "atom"; + return "ident"; + } else if (ch == "|" && (state.varList || state.lastTok == "{" || state.lastTok == "do")) { + curPunc = "|"; + return null; + } else if (/[\(\)\[\]{}\\;]/.test(ch)) { + curPunc = ch; + return null; + } else if (ch == "-" && stream.eat(">")) { + return "arrow"; + } else if (/[=+\-\/*:\.^%<>~|]/.test(ch)) { + var more = stream.eatWhile(/[=+\-\/*:\.^%<>~|]/); + if (ch == "." && !more) curPunc = "."; + return "operator"; + } else { + return null; + } + } + + function tokenBaseUntilBrace(depth) { + if (!depth) depth = 1; + return function(stream, state) { + if (stream.peek() == "}") { + if (depth == 1) { + state.tokenize.pop(); + return state.tokenize[state.tokenize.length-1](stream, state); + } else { + state.tokenize[state.tokenize.length - 1] = tokenBaseUntilBrace(depth - 1); + } + } else if (stream.peek() == "{") { + state.tokenize[state.tokenize.length - 1] = tokenBaseUntilBrace(depth + 1); + } + return tokenBase(stream, state); + }; + } + function tokenBaseOnce() { + var alreadyCalled = false; + return function(stream, state) { + if (alreadyCalled) { + state.tokenize.pop(); + return state.tokenize[state.tokenize.length-1](stream, state); + } + alreadyCalled = true; + return tokenBase(stream, state); + }; + } + function readQuoted(quote, style, embed, unescaped) { + return function(stream, state) { + var escaped = false, ch; + + if (state.context.type === 'read-quoted-paused') { + state.context = state.context.prev; + stream.eat("}"); + } + + while ((ch = stream.next()) != null) { + if (ch == quote && (unescaped || !escaped)) { + state.tokenize.pop(); + break; + } + if (embed && ch == "#" && !escaped) { + if (stream.eat("{")) { + if (quote == "}") { + state.context = {prev: state.context, type: 'read-quoted-paused'}; + } + state.tokenize.push(tokenBaseUntilBrace()); + break; + } else if (/[@\$]/.test(stream.peek())) { + state.tokenize.push(tokenBaseOnce()); + break; + } + } + escaped = !escaped && ch == "\\"; + } + return style; + }; + } + function readHereDoc(phrase) { + return function(stream, state) { + if (stream.match(phrase)) state.tokenize.pop(); + else stream.skipToEnd(); + return "string"; + }; + } + function readBlockComment(stream, state) { + if (stream.sol() && stream.match("=end") && stream.eol()) + state.tokenize.pop(); + stream.skipToEnd(); + return "comment"; + } + + return { + startState: function() { + return {tokenize: [tokenBase], + indented: 0, + context: {type: "top", indented: -config.indentUnit}, + continuedLine: false, + lastTok: null, + varList: false}; + }, + + token: function(stream, state) { + curPunc = null; + if (stream.sol()) state.indented = stream.indentation(); + var style = state.tokenize[state.tokenize.length-1](stream, state), kwtype; + var thisTok = curPunc; + if (style == "ident") { + var word = stream.current(); + style = state.lastTok == "." ? "property" + : keywords.propertyIsEnumerable(stream.current()) ? "keyword" + : /^[A-Z]/.test(word) ? "tag" + : (state.lastTok == "def" || state.lastTok == "class" || state.varList) ? "def" + : "variable"; + if (style == "keyword") { + thisTok = word; + if (indentWords.propertyIsEnumerable(word)) kwtype = "indent"; + else if (dedentWords.propertyIsEnumerable(word)) kwtype = "dedent"; + else if ((word == "if" || word == "unless") && stream.column() == stream.indentation()) + kwtype = "indent"; + else if (word == "do" && state.context.indented < state.indented) + kwtype = "indent"; + } + } + if (curPunc || (style && style != "comment")) state.lastTok = thisTok; + if (curPunc == "|") state.varList = !state.varList; + + if (kwtype == "indent" || /[\(\[\{]/.test(curPunc)) + state.context = {prev: state.context, type: curPunc || style, indented: state.indented}; + else if ((kwtype == "dedent" || /[\)\]\}]/.test(curPunc)) && state.context.prev) + state.context = state.context.prev; + + if (stream.eol()) + state.continuedLine = (curPunc == "\\" || style == "operator"); + return style; + }, + + indent: function(state, textAfter) { + if (state.tokenize[state.tokenize.length-1] != tokenBase) return 0; + var firstChar = textAfter && textAfter.charAt(0); + var ct = state.context; + var closing = ct.type == matching[firstChar] || + ct.type == "keyword" && /^(?:end|until|else|elsif|when|rescue)\b/.test(textAfter); + return ct.indented + (closing ? 0 : config.indentUnit) + + (state.continuedLine ? config.indentUnit : 0); + }, + + electricChars: "}de", // enD and rescuE + lineComment: "#" + }; +}); + +CodeMirror.defineMIME("text/x-ruby", "ruby"); + +}); diff --git a/public/javascripts/homework.js b/public/javascripts/homework.js index 3589a0728..c6fb2e9c7 100644 --- a/public/javascripts/homework.js +++ b/public/javascripts/homework.js @@ -95,9 +95,9 @@ $(function(){ //发布作业 - //$('#program-src').focus(function(){ - // $(this).css('height', '100px'); - //}); + $('#program-src').focus(function(){ + $(this).css('height', '100px'); + }); var datepickerOptions={dateFormat:'yy-mm-dd',firstDay:0,showWeek:true,showOtherMonths:true,selectOtherMonths:true}; @@ -115,7 +115,7 @@ $(function(){ minWidth: 753 }); - $('a.ProBtn').live('click', function(){ + $('a.ProBtn').on('click', function(){ $("#BluePopupBox").dialog("open"); $(".ui-dialog-titlebar").hide(); $("a.CloseBtn").on('click', function(){ @@ -124,6 +124,7 @@ $(function(){ $('#textarea_input_test').focus(); }); + var saveProgramAnswers = function() { var test_numbers = 0; var valid = true; @@ -145,7 +146,14 @@ $(function(){ test_numbers += 1; }); - var language = $('select.language_type').val() == 1 ? 'C语言' : 'C++语言'; + var language = ''; + if($('select.language_type').val() == 1){ + language = 'C'; + }else if($('select.language_type').val() == 2){ + language = 'C++'; + }else if($('select.language_type').val() == 3){ + language = 'Python'; + } if (valid) { $("input[name=homework_type]").val(2); @@ -163,7 +171,7 @@ $(function(){ return valid; } - $("#BluePopupBox a.BlueCirBtn").live('click', function(){ + $("#BluePopupBox a.BlueCirBtn").on('click', function(){ if(saveProgramAnswers()){ if($( "#BluePopupBox" ).dialog( "isOpen" )){ $("#BluePopupBox").dialog( "close" ); @@ -174,16 +182,40 @@ $(function(){ $("#BluePopupBox").on('click', 'a.icon_add', function(){ var html = bt('t:test-answer-list', null); $(this).parent('.mt10').after(html); - var inputs = document.getElementsByName("program[input][]"); - var outputs = document.getElementsByName("program[output][]"); - if (inputs.length == outputs.length) { - for (var i=0; i