educoder/public/assets/kindeditor/plugins/paste/paste.js

// Generated by CoffeeScript 1.9.0

/* 
paste.js is an interface to read data ( text / image ) from clipboard in different browsers. It also contains several hacks.
https://github.com/layerssss/paste.js
 */

(function() {
    var $, Paste, createHiddenEditable, dataURLtoBlob;

    $ = window.jQuery;

    $.paste = function(pasteContainer) {
        var pm;
        if (typeof console !== "undefined" && console !== null) {
            console.log("DEPRECATED: This method is deprecated. Please use $.fn.pastableNonInputable() instead.");
        }
        pm = Paste.mountNonInputable(pasteContainer);
        return pm._container;
    };

    $.fn.pastableNonInputable = function() {
        var el, _i, _len;
        for (_i = 0, _len = this.length; _i < _len; _i++) {
            el = this[_i];
            Paste.mountNonInputable(el);
        }
        return this;
    };

    $.fn.pastableTextarea = function() {
        var el, _i, _len;
        for (_i = 0, _len = this.length; _i < _len; _i++) {
            el = this[_i];
            Paste.mountTextarea(el);
        }
        return this;
    };

    $.fn.pastableContenteditable = function() {
        var el, _i, _len;
        for (_i = 0, _len = this.length; _i < _len; _i++) {
            el = this[_i];
            Paste.mountContenteditable(el);
        }
        return this;
    };

    dataURLtoBlob = function(dataURL, sliceSize) {
        var b64Data, byteArray, byteArrays, byteCharacters, byteNumbers, contentType, i, m, offset, slice, _ref;
        if (sliceSize == null) {
            sliceSize = 512;
        }
        if (!(m = dataURL.match(/^data\:([^\;]+)\;base64\,(.+)$/))) {
            return null;
        }
        _ref = m, m = _ref[0], contentType = _ref[1], b64Data = _ref[2];
        byteCharacters = atob(b64Data);
        byteArrays = [];
        offset = 0;
        while (offset < byteCharacters.length) {
            slice = byteCharacters.slice(offset, offset + sliceSize);
            byteNumbers = new Array(slice.length);
            i = 0;
            while (i < slice.length) {
                byteNumbers[i] = slice.charCodeAt(i);
                i++;
            }
            byteArray = new Uint8Array(byteNumbers);
            byteArrays.push(byteArray);
            offset += sliceSize;
        }
        return new Blob(byteArrays, {
            type: contentType
        });
    };

    createHiddenEditable = function() {
        return $(document.createElement('div')).attr('contenteditable', true).css({
            width: 1,
            height: 1,
            position: 'fixed',
            left: -100,
            overflow: 'hidden'
        });
    };

    Paste = (function() {
        Paste.prototype._target = null;

        Paste.prototype._container = null;

        Paste.mountNonInputable = function(nonInputable) {
            var paste;
            paste = new Paste(createHiddenEditable().appendTo(nonInputable), nonInputable);
            $(nonInputable).on('click', (function(_this) {
                return function() {
                    return paste._container.focus();
                };
            })(this));
            paste._container.on('focus', (function(_this) {
                return function() {
                    return $(nonInputable).addClass('pastable-focus');
                };
            })(this));
            return paste._container.on('blur', (function(_this) {
                return function() {
                    return $(nonInputable).removeClass('pastable-focus');
                };
            })(this));
        };

        Paste.mountTextarea = function(textarea) {
            var ctlDown, paste;
            if (-1 !== navigator.userAgent.toLowerCase().indexOf('chrome')) {
                return this.mountContenteditable(textarea);
            }
            paste = new Paste(createHiddenEditable().insertBefore(textarea), textarea);
            ctlDown = false;
            $(textarea).on('keyup', function(ev) {
                var _ref;
                if ((_ref = ev.keyCode) === 17 || _ref === 224) {
                    return ctlDown = false;
                }
            });
            $(textarea).on('keydown', function(ev) {
                var _ref;
                if ((_ref = ev.keyCode) === 17 || _ref === 224) {
                    ctlDown = true;
                }
                if (ctlDown && ev.keyCode === 86) {
                    return paste._container.focus();
                }
            });
            $(paste._target).on('pasteImage', (function(_this) {
                return function() {
                    return $(textarea).focus();
                };
            })(this));
            $(paste._target).on('pasteText', (function(_this) {
                return function() {
                    return $(textarea).focus();
                };
            })(this));
            $(textarea).on('focus', (function(_this) {
                return function() {
                    return $(textarea).addClass('pastable-focus');
                };
            })(this));
            return $(textarea).on('blur', (function(_this) {
                return function() {
                    return $(textarea).removeClass('pastable-focus');
                };
            })(this));
        };

        Paste.mountContenteditable = function(contenteditable) {
            var paste;
            paste = new Paste(contenteditable, contenteditable);
            $(contenteditable).on('focus', (function(_this) {
                return function() {
                    return $(contenteditable).addClass('pastable-focus');
                };
            })(this));
            return $(contenteditable).on('blur', (function(_this) {
                return function() {
                    return $(contenteditable).removeClass('pastable-focus');
                };
            })(this));
        };

        function Paste(_at__container, _at__target) {
            this._container = _at__container;
            this._target = _at__target;
            this._container = $(this._container);
            this._target = $(this._target).addClass('pastable');
            this._container.on('paste', (function(_this) {
                return function(ev) {
                    var clipboardData, file, item, reader, text, _i, _j, _len, _len1, _ref, _ref1, _ref2, _ref3, _results;
                    if (((_ref = ev.originalEvent) != null ? _ref.clipboardData : void 0) != null) {
                        clipboardData = ev.originalEvent.clipboardData;
                        if (clipboardData.items) {
                            _ref1 = clipboardData.items;
                            for (_i = 0, _len = _ref1.length; _i < _len; _i++) {
                                item = _ref1[_i];
                                if (item.type.match(/^image\//)) {
                                    reader = new FileReader();
                                    reader.onload = function(event) {
                                        return _this._handleImage(event.target.result);
                                    };
                                    reader.readAsDataURL(item.getAsFile());
                                }
                                if (item.type === 'text/plain') {
                                    item.getAsString(function(string) {
                                        return _this._target.trigger('pasteText', {
                                            text: string
                                        });
                                    });
                                }
                            }
                        } else {
                            if (-1 !== Array.prototype.indexOf.call(clipboardData.types, 'text/plain')) {
                                text = clipboardData.getData('Text');
                                _this._target.trigger('pasteText', {
                                    text: text
                                });
                            }
                            _this._checkImagesInContainer(function(src) {
                                return _this._handleImage(src);
                            });
                        }
                    }
                    if (clipboardData = window.clipboardData) {
                        if ((_ref2 = (text = clipboardData.getData('Text'))) != null ? _ref2.length : void 0) {
                            return _this._target.trigger('pasteText', {
                                text: text
                            });
                        } else {
                            _ref3 = clipboardData.files;
                            _results = [];
                            for (_j = 0, _len1 = _ref3.length; _j < _len1; _j++) {
                                file = _ref3[_j];
                                _this._handleImage(URL.createObjectURL(file));
                                _results.push(_this._checkImagesInContainer(function() {}));
                            }
                            return _results;
                        }
                    }
                };
            })(this));
        }

        Paste.prototype._handleImage = function(src) {
            var loader;
            loader = new Image();
            loader.onload = (function(_this) {
                return function() {
                    var blob, canvas, ctx, dataURL;
                    canvas = document.createElement('canvas');
                    canvas.width = loader.width;
                    canvas.height = loader.height;
                    ctx = canvas.getContext('2d');
                    ctx.drawImage(loader, 0, 0, canvas.width, canvas.height);
                    dataURL = null;
                    try {
                        dataURL = canvas.toDataURL('image/png');
                        blob = dataURLtoBlob(dataURL);
                    } catch (_error) {}
                    if (dataURL) {
                        return _this._target.trigger('pasteImage', {
                            blob: blob,
                            dataURL: dataURL,
                            width: loader.width,
                            height: loader.height
                        });
                    }
                };
            })(this);
            return loader.src = src;
        };

        Paste.prototype._checkImagesInContainer = function(cb) {
            var img, timespan, _i, _len, _ref;
            timespan = Math.floor(1000 * Math.random());
            _ref = this._container.find('img');
            for (_i = 0, _len = _ref.length; _i < _len; _i++) {
                img = _ref[_i];
                img["_paste_marked_" + timespan] = true;
            }
            return setTimeout((function(_this) {
                return function() {
                    var _j, _len1, _ref1, _results;
                    _ref1 = _this._container.find('img');
                    _results = [];
                    for (_j = 0, _len1 = _ref1.length; _j < _len1; _j++) {
                        img = _ref1[_j];
                        if (!img["_paste_marked_" + timespan]) {
                            cb(img.src);
                        }
                        //firefox问题处理，因为采用了 pastableContenteditable 模式，故只需要删除默认的粘贴
                        if ($(img).attr('src').startsWith('data:image/')) {
                           _results.push($(img).remove()); 
                        };
                    }
                    return _results;
                };
            })(this), 1);
        };

        return Paste;

    })();

}).call(this);

KindEditor.plugin('paste', function(K) {
    var editor = this,
        name = 'paste';
    if(editor.edit == undefined || editor.edit.iframe == undefined){
        return;
    }
    var contentWindow = editor.edit.iframe[0].contentWindow;
    //var contentWindow = editor.iframeDoc;
    //var contentWindow = document.getElementsByTagName('iframe')[0].contentWindow;
    var nodeBody = contentWindow.document.getElementsByTagName('body')[0];
    console.log(nodeBody);
    $(nodeBody).pastableContenteditable();
    
    dataURItoBlob = function(dataURI) {
      // convert base64/URLEncoded data component to raw binary data held in a string
      var byteString;
      if (dataURI.split(',')[0].indexOf('base64') >= 0)
        byteString = atob(dataURI.split(',')[1]);
      else
        byteString = unescape(dataURI.split(',')[1]);

      // separate out the mime component
      var mimeString = dataURI.split(',')[0].split(':')[1].split(';')[0];

      // write the bytes of the string to a typed array
      var ia = new Uint8Array(byteString.length);
      for (var i = 0; i < byteString.length; i++) {
        ia[i] = byteString.charCodeAt(i);
      }

      return new Blob([ia], {type:mimeString});
    };

    $(nodeBody).on('pasteImage', function(ev, data) {
        console.log('pasteImage');
        console.log("dataURL: " + data.dataURL);
        console.log("width: " + data.width);
        console.log("height: " + data.height);
        var blob = dataURItoBlob(data.dataURL);
        if (data.blob !== null) {
            var data = new FormData();
            // data.append("imgFile",blob, "imageFilename.png");
            data.append("file",blob, "imageFilename.png");
            console.log(data);
            $.ajax({
              url: '/kindeditor/upload?dir=image',
              url: '/api/attachments.json',
              contentType: false,
              type: 'POST',
              data: data,
              processData: false,
              success: function(data) {
                console.log(data);
                // editor.exec('insertimage', JSON.parse(data).url);

                // /api/attachments/227362
                editor.exec('insertimage', '/api/attachments/' + data.id);
              }
            });
        }

    });
    return;
    
});