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拆分为数组\n styleArr = style.split(';');\n styleArr.forEach(function (item) {\n // 对每项样式，按照 : 拆分为 key 和 value\n var arr = item.split(':').map(function (i) {\n return i.trim();\n });\n if (arr.length === 2) {\n resultArr.push(arr[0] + ':' + arr[1]);\n }\n });\n // 替换或者新增\n resultArr = resultArr.map(function (item) {\n if (item.indexOf(key) === 0) {\n return currentStyle;\n } else {\n return item;\n }\n });\n if (resultArr.indexOf(currentStyle) < 0) {\n resultArr.push(currentStyle);\n }\n // 结果\n elem.setAttribute('style', resultArr.join('; '));\n } else {\n // style 无值\n elem.setAttribute('style', currentStyle);\n }\n });\n },\n\n // 显示\n show: function show() {\n return this.css('display', 'block');\n },\n\n // 隐藏\n hide: function hide() {\n return this.css('display', 'none');\n },\n\n // 获取子节点\n children: function children() {\n var elem = this[0];\n if (!elem) {\n return null;\n }\n\n return $(elem.children);\n },\n\n // 增加子节点\n append: function append($children) {\n return this.forEach(function (elem) {\n $children.forEach(function (child) {\n elem.appendChild(child);\n });\n });\n },\n\n // 移除当前节点\n remove: function remove() {\n return this.forEach(function (elem) {\n if (elem.remove) {\n elem.remove();\n } else {\n var parent = elem.parentElement;\n parent && parent.removeChild(elem);\n }\n });\n },\n\n // 是否包含某个子节点\n isContain: function isContain($child) {\n var elem = this[0];\n var child = $child[0];\n return elem.contains(child);\n },\n\n // 尺寸数据\n getSizeData: function getSizeData() {\n var elem = this[0];\n return elem.getBoundingClientRect(); // 可得到 bottom height left right top width 的数据\n },\n\n // 封装 nodeName\n getNodeName: function getNodeName() {\n var elem = this[0];\n return elem.nodeName;\n },\n\n // 从当前元素查找\n find: function find(selector) {\n var elem = this[0];\n return $(elem.querySelectorAll(selector));\n },\n\n // 获取当前元素的 text\n text: function text(val) {\n if (!val) {\n // 获取 text\n var elem = this[0];\n return elem.innerHTML.replace(/<.*?>/g, function () {\n return '';\n });\n } else {\n // 设置 text\n return this.forEach(function (elem) {\n elem.innerHTML = val;\n });\n }\n },\n\n // 获取 html\n html: function html(value) {\n var elem = this[0];\n if (value == null) {\n return elem.innerHTML;\n } else {\n elem.innerHTML = value;\n return this;\n }\n },\n\n // 获取 value\n val: function val() {\n var elem = this[0];\n return elem.value.trim();\n },\n\n // focus\n focus: function focus() {\n return this.forEach(function (elem) {\n elem.focus();\n });\n },\n\n // parent\n parent: function parent() {\n var elem = this[0];\n return $(elem.parentElement);\n },\n\n // parentUntil 找到符合 selector 的父节点\n parentUntil: function parentUntil(selector, _currentElem) {\n var results = document.querySelectorAll(selector);\n var length = results.length;\n if (!length) {\n // 传入的 selector 无效\n return null;\n }\n\n var elem = _currentElem || this[0];\n if (elem.nodeName === 'BODY') {\n return null;\n }\n\n var parent = elem.parentElement;\n var i = void 0;\n for (i = 0; i < length; i++) {\n if (parent === results[i]) {\n // 找到，并返回\n return $(parent);\n }\n }\n\n // 继续查找\n return this.parentUntil(selector, parent);\n },\n\n // 判断两个 elem 是否相等\n equal: function equal($elem) {\n if ($elem.nodeType === 1) {\n return this[0] === $elem;\n } else {\n return this[0] === $elem[0];\n }\n },\n\n // 将该元素插入到某个元素前面\n insertBefore: function insertBefore(selector) {\n var $referenceNode = $(selector);\n var referenceNode = $referenceNode[0];\n if (!referenceNode) {\n return this;\n }\n return this.forEach(function (elem) {\n var parent = referenceNode.parentNode;\n parent.insertBefore(elem, referenceNode);\n });\n },\n\n // 将该元素插入到某个元素后面\n insertAfter: function insertAfter(selector) {\n var $referenceNode = $(selector);\n var referenceNode = $referenceNode[0];\n if (!referenceNode) {\n return this;\n }\n return this.forEach(function (elem) {\n var parent = referenceNode.parentNode;\n if (parent.lastChild === referenceNode) {\n // 最后一个元素\n parent.appendChild(elem);\n } else {\n // 不是最后一个元素\n parent.insertBefore(elem, referenceNode.nextSibling);\n }\n });\n }\n};\n\n// new 一个对象\nfunction $(selector) {\n return new DomElement(selector);\n}\n\n/*\n 配置信息\n*/\n\nvar config = {\n\n // 默认菜单配置\n menus: ['head', 'bold', 'italic', 'underline', 'strikeThrough', 'foreColor', 'backColor', 'link', 'list', 'justify', 'quote', 'emoticon', 'image', 'table', 'video', 'code', 'undo', 'redo'],\n\n // 编辑区域的 z-index\n zIndex: 10000,\n\n // 是否开启 debug 模式（debug 模式下错误会 throw error 形式抛出）\n debug: false,\n\n // onchange 事件\n // onchange: function (html) {\n // // html 即变化之后的内容\n // console.log(html)\n // },\n\n // 是否显示添加网络图片的 tab\n showLinkImg: true,\n\n // 默认上传图片 max size: 5M\n uploadImgMaxSize: 5 * 1024 * 1024,\n\n // 配置一次最多上传几个图片\n // uploadImgMaxLength: 5,\n\n // 上传图片，是否显示 base64 格式\n uploadImgShowBase64: false,\n\n // 上传图片，server 地址（如果有值，则 base64 格式的配置则失效）\n // uploadImgServer: '/upload',\n\n // 自定义配置 filename\n uploadFileName: '',\n\n // 上传图片的自定义参数\n uploadImgParams: {\n token: 'abcdef12345'\n },\n\n // 上传图片的自定义header\n uploadImgHeaders: {\n // 'Accept': 'text/x-json'\n },\n\n // 配置 XHR withCredentials\n withCredentials: false,\n\n // 自定义上传图片超时时间 ms\n uploadImgTimeout: 5000,\n\n // 上传图片 hook \n uploadImgHooks: {\n // customInsert: function (insertLinkImg, result, editor) {\n // console.log('customInsert')\n // // 图片上传并返回结果，自定义插入图片的事件，而不是编辑器自动插入图片\n // const data = result.data1 || []\n // data.forEach(link => {\n // insertLinkImg(link)\n // })\n // },\n before: function before(xhr, editor, files) {\n // 图片上传之前触发\n },\n success: function success(xhr, editor, result) {\n // 图片上传并返回结果，图片插入成功之后触发\n },\n fail: function fail(xhr, editor, result) {\n // 图片上传并返回结果，但图片插入错误时触发\n },\n error: function error(xhr, editor) {\n // 图片上传出错时触发\n },\n timeout: function timeout(xhr, editor) {\n // 图片上传超时时触发\n }\n }\n};\n\n/*\n 工具\n*/\n\n// 和 UA 相关的属性\nvar UA = {\n _ua: navigator.userAgent,\n\n // 是否 webkit\n isWebkit: function isWebkit() {\n var reg = /webkit/i;\n return reg.test(this._ua);\n },\n\n // 是否 IE\n isIE: function isIE() {\n return 'ActiveXObject' in window;\n }\n};\n\n// 遍历对象\nfunction objForEach(obj, fn) {\n var key = void 0,\n result = void 0;\n for (key in obj) {\n if (obj.hasOwnProperty(key)) {\n result = fn.call(obj, key, obj[key]);\n if (result === false) {\n break;\n }\n }\n }\n}\n\n// 遍历类数组\nfunction arrForEach(fakeArr, fn) {\n var i = void 0,\n item = void 0,\n result = void 0;\n var length = fakeArr.length || 0;\n for (i = 0; i < length; i++) {\n item = fakeArr[i];\n result = fn.call(fakeArr, item, i);\n if (result === false) {\n break;\n }\n }\n}\n\n// 获取随机数\nfunction getRandom(prefix) {\n return prefix + Math.random().toString().slice(2);\n}\n\n// 替换 html 特殊字符\nfunction replaceHtmlSymbol(html) {\n if (html == null) {\n return '';\n }\n return html.replace(//gm, '>').replace(/\"/gm, '"');\n}\n\n// 返回百分比的格式\n\n/*\n bold-menu\n*/\n// 构造函数\nfunction Bold(editor) {\n this.editor = editor;\n this.$elem = $('
\\n \\n
');\n this.type = 'click';\n\n // 当前是否 active 状态\n this._active = false;\n}\n\n// 原型\nBold.prototype = {\n constructor: Bold,\n\n // 点击事件\n onClick: function onClick(e) {\n // 点击菜单将触发这里\n\n var editor = this.editor;\n var isSeleEmpty = editor.selection.isSelectionEmpty();\n\n if (isSeleEmpty) {\n // 选区是空的，插入并选中一个“空白”\n editor.selection.createEmptyRange();\n }\n\n // 执行 bold 命令\n editor.cmd.do('bold');\n\n if (isSeleEmpty) {\n // 需要将选取折叠起来\n editor.selection.collapseRange();\n editor.selection.restoreSelection();\n }\n },\n\n // 试图改变 active 状态\n tryChangeActive: function tryChangeActive(e) {\n var editor = this.editor;\n var $elem = this.$elem;\n if (editor.cmd.queryCommandState('bold')) {\n this._active = true;\n $elem.addClass('w-e-active');\n } else {\n this._active = false;\n $elem.removeClass('w-e-active');\n }\n }\n};\n\n/*\n droplist\n*/\nvar _emptyFn = function _emptyFn() {};\n\n// 构造函数\nfunction DropList(menu, opt) {\n var _this = this;\n\n // droplist 所依附的菜单\n this.menu = menu;\n this.opt = opt;\n // 容器\n var $container = $('
');\n\n // 标题\n var $title = opt.$title;\n if ($title) {\n $title.addClass('w-e-dp-title');\n $container.append($title);\n }\n\n var list = opt.list || [];\n var type = opt.type || 'list'; // 'list' 列表形式（如“标题”菜单） / 'inline-block' 块状形式（如“颜色”菜单）\n var onClick = opt.onClick || _emptyFn;\n\n // 加入 DOM 并绑定事件\n var $list = $('
    ');\n $container.append($list);\n list.forEach(function (item) {\n var $elem = item.$elem;\n var value = item.value;\n var $li = $('
  • ');\n if ($elem) {\n $li.append($elem);\n $list.append($li);\n $elem.on('click', function (e) {\n onClick(value);\n\n // 隐藏\n _this.hideTimeoutId = setTimeout(function () {\n _this.hide();\n }, 0);\n });\n }\n });\n\n // 绑定隐藏事件\n $container.on('mouseleave', function (e) {\n _this.hideTimeoutId = setTimeout(function () {\n _this.hide();\n }, 0);\n });\n\n // 记录属性\n this.$container = $container;\n\n // 基本属性\n this._rendered = false;\n this._show = false;\n}\n\n// 原型\nDropList.prototype = {\n constructor: DropList,\n\n // 显示（插入DOM）\n show: function show() {\n if (this.hideTimeoutId) {\n // 清除之前的定时隐藏\n clearTimeout(this.hideTimeoutId);\n }\n\n var menu = this.menu;\n var $menuELem = menu.$elem;\n var $container = this.$container;\n if (this._show) {\n return;\n }\n if (this._rendered) {\n // 显示\n $container.show();\n } else {\n // 加入 DOM 之前先定位位置\n var menuHeight = $menuELem.getSizeData().height || 0;\n var width = this.opt.width || 100; // 默认为 100\n $container.css('margin-top', menuHeight + 'px').css('width', width + 'px');\n\n // 加入到 DOM\n $menuELem.append($container);\n this._rendered = true;\n }\n\n // 修改属性\n this._show = true;\n },\n\n // 隐藏（移除DOM）\n hide: function hide() {\n if (this.showTimeoutId) {\n // 清除之前的定时显示\n clearTimeout(this.showTimeoutId);\n }\n\n var $container = this.$container;\n if (!this._show) {\n return;\n }\n // 隐藏并需改属性\n $container.hide();\n this._show = false;\n }\n};\n\n/*\n menu - header\n*/\n// 构造函数\nfunction Head(editor) {\n var _this = this;\n\n this.editor = editor;\n this.$elem = $('
    ');\n this.type = 'droplist';\n\n // 当前是否 active 状态\n this._active = false;\n\n // 初始化 droplist\n this.droplist = new DropList(this, {\n width: 100,\n $title: $('

    设置标题

    '),\n type: 'list', // droplist 以列表形式展示\n list: [{ $elem: $('

    H1

    '), value: '

    ' }, { $elem: $('

    H2

    '), value: '

    ' }, { $elem: $('

    H3

    '), value: '

    ' }, { $elem: $('

    H4

    '), value: '

    ' }, { $elem: $('

    H5
    '), value: '
    ' }, { $elem: $('

    正文

    '), value: '

    ' }],\n onClick: function onClick(value) {\n // 注意 this 是指向当前的 Head 对象\n _this._command(value);\n }\n });\n}\n\n// 原型\nHead.prototype = {\n constructor: Head,\n\n // 执行命令\n _command: function _command(value) {\n var editor = this.editor;\n editor.cmd.do('formatBlock', value);\n },\n\n // 试图改变 active 状态\n tryChangeActive: function tryChangeActive(e) {\n var editor = this.editor;\n var $elem = this.$elem;\n var reg = /^h/i;\n var cmdValue = editor.cmd.queryCommandValue('formatBlock');\n if (reg.test(cmdValue)) {\n this._active = true;\n $elem.addClass('w-e-active');\n } else {\n this._active = false;\n $elem.removeClass('w-e-active');\n }\n }\n};\n\n/*\n panel\n*/\n\nvar emptyFn = function emptyFn() {};\n\n// 记录已经显示 panel 的菜单\nvar _isCreatedPanelMenus = [];\n\n// 构造函数\nfunction Panel(menu, opt) {\n this.menu = menu;\n this.opt = opt;\n}\n\n// 原型\nPanel.prototype = {\n constructor: Panel,\n\n // 显示（插入DOM）\n show: function show() {\n var _this = this;\n\n var menu = this.menu;\n if (_isCreatedPanelMenus.indexOf(menu) >= 0) {\n // 该菜单已经创建了 panel 不能再创建\n return;\n }\n\n var editor = menu.editor;\n var $body = $('body');\n var $textContainerElem = editor.$textContainerElem;\n var opt = this.opt;\n\n // panel 的容器\n var $container = $('

    ');\n var width = opt.width || 300; // 默认 300px\n $container.css('width', width + 'px').css('margin-left', (0 - width) / 2 + 'px');\n\n // 添加关闭按钮\n var $closeBtn = $('');\n $container.append($closeBtn);\n $closeBtn.on('click', function () {\n _this.hide();\n });\n\n // 准备 tabs 容器\n var $tabTitleContainer = $('
      ');\n var $tabContentContainer = $('
      ');\n $container.append($tabTitleContainer).append($tabContentContainer);\n\n // 设置高度\n var height = opt.height;\n if (height) {\n $tabContentContainer.css('height', height + 'px').css('overflow-y', 'auto');\n }\n\n // tabs\n var tabs = opt.tabs || [];\n var tabTitleArr = [];\n var tabContentArr = [];\n tabs.forEach(function (tab, tabIndex) {\n if (!tab) {\n return;\n }\n var title = tab.title || '';\n var tpl = tab.tpl || '';\n\n // 添加到 DOM\n var $title = $('
    • ' + title + '
      • ');\n $tabTitleContainer.append($title);\n var $content = $(tpl);\n $tabContentContainer.append($content);\n\n // 记录到内存\n $title._index = tabIndex;\n tabTitleArr.push($title);\n tabContentArr.push($content);\n\n // 设置 active 项\n if (tabIndex === 0) {\n $title._active = true;\n $title.addClass('w-e-active');\n } else {\n $content.hide();\n }\n\n // 绑定 tab 的事件\n $title.on('click', function (e) {\n if ($title._active) {\n return;\n }\n // 隐藏所有的 tab\n tabTitleArr.forEach(function ($title) {\n $title._active = false;\n $title.removeClass('w-e-active');\n });\n tabContentArr.forEach(function ($content) {\n $content.hide();\n });\n\n // 显示当前的 tab\n $title._active = true;\n $title.addClass('w-e-active');\n $content.show();\n });\n });\n\n // 绑定关闭事件\n $container.on('click', function (e) {\n // 点击时阻止冒泡\n e.stopPropagation();\n });\n $body.on('click', function (e) {\n _this.hide();\n });\n\n // 添加到 DOM\n $textContainerElem.append($container);\n\n // 绑定 opt 的事件，只有添加到 DOM 之后才能绑定成功\n tabs.forEach(function (tab, index) {\n if (!tab) {\n return;\n }\n var events = tab.events || [];\n events.forEach(function (event) {\n var selector = event.selector;\n var type = event.type;\n var fn = event.fn || emptyFn;\n var $content = tabContentArr[index];\n $content.find(selector).on(type, function (e) {\n e.stopPropagation();\n var needToHide = fn(e);\n // 执行完事件之后，是否要关闭 panel\n if (needToHide) {\n _this.hide();\n }\n });\n });\n });\n\n // focus 第一个 elem\n var $inputs = $container.find('input[type=text],textarea');\n if ($inputs.length) {\n $inputs.get(0).focus();\n }\n\n // 添加到属性\n this.$container = $container;\n\n // 隐藏其他 panel\n this._hideOtherPanels();\n // 记录该 menu 已经创建了 panel\n _isCreatedPanelMenus.push(menu);\n },\n\n // 隐藏（移除DOM）\n hide: function hide() {\n var menu = this.menu;\n var $container = this.$container;\n if ($container) {\n $container.remove();\n }\n\n // 将该 menu 记录中移除\n _isCreatedPanelMenus = _isCreatedPanelMenus.filter(function (item) {\n if (item === menu) {\n return false;\n } else {\n return true;\n }\n });\n },\n\n // 一个 panel 展示时，隐藏其他 panel\n _hideOtherPanels: function _hideOtherPanels() {\n if (!_isCreatedPanelMenus.length) {\n return;\n }\n _isCreatedPanelMenus.forEach(function (menu) {\n var panel = menu.panel || {};\n if (panel.hide) {\n panel.hide();\n }\n });\n }\n};\n\n/*\n menu - link\n*/\n// 构造函数\nfunction Link(editor) {\n this.editor = editor;\n this.$elem = $('
      ');\n this.type = 'panel';\n\n // 当前是否 active 状态\n this._active = false;\n}\n\n// 原型\nLink.prototype = {\n constructor: Link,\n\n // 点击事件\n onClick: function onClick(e) {\n var editor = this.editor;\n var $linkelem = void 0;\n\n if (this._active) {\n // 当前选区在链接里面\n $linkelem = editor.selection.getSelectionContainerElem();\n if (!$linkelem) {\n return;\n }\n // 将该元素都包含在选取之内，以便后面整体替换\n editor.selection.createRangeByElem($linkelem);\n editor.selection.restoreSelection();\n // 显示 panel\n this._createPanel($linkelem.text(), $linkelem.attr('href'));\n } else {\n // 当前选区不在链接里面\n if (editor.selection.isSelectionEmpty()) {\n // 选区是空的，未选中内容\n this._createPanel('', '');\n } else {\n // 选中内容了\n this._createPanel(editor.selection.getSelectionText(), '');\n }\n }\n },\n\n // 创建 panel\n _createPanel: function _createPanel(text, link) {\n var _this = this;\n\n // panel 中需要用到的id\n var inputLinkId = getRandom('input-link');\n var inputTextId = getRandom('input-text');\n var btnOkId = getRandom('btn-ok');\n var btnDelId = getRandom('btn-del');\n\n // 是否显示“删除链接”\n var delBtnDisplay = this._active ? 'inline-block' : 'none';\n\n // 初始化并显示 panel\n var panel = new Panel(this, {\n width: 300,\n // panel 中可包含多个 tab\n tabs: [{\n // tab 的标题\n title: '链接',\n // 模板\n tpl: '
      \\n \\n \\n
      \\n \\n \\n
      \\n
      ',\n // 事件绑定\n events: [\n // 插入链接\n {\n selector: '#' + btnOkId,\n type: 'click',\n fn: function fn() {\n // 执行插入链接\n var $link = $('#' + inputLinkId);\n var $text = $('#' + inputTextId);\n var link = $link.val();\n var text = $text.val();\n _this._insertLink(text, link);\n\n // 返回 true，表示该事件执行完之后，panel 要关闭。否则 panel 不会关闭\n return true;\n }\n },\n // 删除链接\n {\n selector: '#' + btnDelId,\n type: 'click',\n fn: function fn() {\n // 执行删除链接\n _this._delLink();\n\n // 返回 true，表示该事件执行完之后，panel 要关闭。否则 panel 不会关闭\n return true;\n }\n }]\n } // tab end\n ] // tabs end\n });\n\n // 显示 panel\n panel.show();\n\n // 记录属性\n this.panel = panel;\n },\n\n // 删除当前链接\n _delLink: function _delLink() {\n if (!this._active) {\n return;\n }\n var editor = this.editor;\n var $selectionELem = editor.selection.getSelectionContainerElem();\n if (!$selectionELem) {\n return;\n }\n var selectionText = editor.selection.getSelectionText();\n editor.cmd.do('insertHTML', '' + selectionText + '');\n },\n\n // 插入链接\n _insertLink: function _insertLink(text, link) {\n if (!text || !link) {\n return;\n }\n var editor = this.editor;\n editor.cmd.do('insertHTML', '' + text + '');\n },\n\n // 试图改变 active 状态\n tryChangeActive: function tryChangeActive(e) {\n var editor = this.editor;\n var $elem = this.$elem;\n var $selectionELem = editor.selection.getSelectionContainerElem();\n if (!$selectionELem) {\n return;\n }\n if ($selectionELem.getNodeName() === 'A') {\n this._active = true;\n $elem.addClass('w-e-active');\n } else {\n this._active = false;\n $elem.removeClass('w-e-active');\n }\n }\n};\n\n/*\n italic-menu\n*/\n// 构造函数\nfunction Italic(editor) {\n this.editor = editor;\n this.$elem = $('
      \\n \\n
      ');\n this.type = 'click';\n\n // 当前是否 active 状态\n this._active = false;\n}\n\n// 原型\nItalic.prototype = {\n constructor: Italic,\n\n // 点击事件\n onClick: function onClick(e) {\n // 点击菜单将触发这里\n\n var editor = this.editor;\n var isSeleEmpty = editor.selection.isSelectionEmpty();\n\n if (isSeleEmpty) {\n // 选区是空的，插入并选中一个“空白”\n editor.selection.createEmptyRange();\n }\n\n // 执行 italic 命令\n editor.cmd.do('italic');\n\n if (isSeleEmpty) {\n // 需要将选取折叠起来\n editor.selection.collapseRange();\n editor.selection.restoreSelection();\n }\n },\n\n // 试图改变 active 状态\n tryChangeActive: function tryChangeActive(e) {\n var editor = this.editor;\n var $elem = this.$elem;\n if (editor.cmd.queryCommandState('italic')) {\n this._active = true;\n $elem.addClass('w-e-active');\n } else {\n this._active = false;\n $elem.removeClass('w-e-active');\n }\n }\n};\n\n/*\n redo-menu\n*/\n// 构造函数\nfunction Redo(editor) {\n this.editor = editor;\n this.$elem = $('
      \\n \\n
      ');\n this.type = 'click';\n\n // 当前是否 active 状态\n this._active = false;\n}\n\n// 原型\nRedo.prototype = {\n constructor: Redo,\n\n // 点击事件\n onClick: function onClick(e) {\n // 点击菜单将触发这里\n\n var editor = this.editor;\n\n // 执行 redo 命令\n editor.cmd.do('redo');\n }\n};\n\n/*\n strikeThrough-menu\n*/\n// 构造函数\nfunction StrikeThrough(editor) {\n this.editor = editor;\n this.$elem = $('
      \\n \\n
      ');\n this.type = 'click';\n\n // 当前是否 active 状态\n this._active = false;\n}\n\n// 原型\nStrikeThrough.prototype = {\n constructor: StrikeThrough,\n\n // 点击事件\n onClick: function onClick(e) {\n // 点击菜单将触发这里\n\n var editor = this.editor;\n var isSeleEmpty = editor.selection.isSelectionEmpty();\n\n if (isSeleEmpty) {\n // 选区是空的，插入并选中一个“空白”\n editor.selection.createEmptyRange();\n }\n\n // 执行 strikeThrough 命令\n editor.cmd.do('strikeThrough');\n\n if (isSeleEmpty) {\n // 需要将选取折叠起来\n editor.selection.collapseRange();\n editor.selection.restoreSelection();\n }\n },\n\n // 试图改变 active 状态\n tryChangeActive: function tryChangeActive(e) {\n var editor = this.editor;\n var $elem = this.$elem;\n if (editor.cmd.queryCommandState('strikeThrough')) {\n this._active = true;\n $elem.addClass('w-e-active');\n } else {\n this._active = false;\n $elem.removeClass('w-e-active');\n }\n }\n};\n\n/*\n underline-menu\n*/\n// 构造函数\nfunction Underline(editor) {\n this.editor = editor;\n this.$elem = $('
      \\n \\n
      ');\n this.type = 'click';\n\n // 当前是否 active 状态\n this._active = false;\n}\n\n// 原型\nUnderline.prototype = {\n constructor: Underline,\n\n // 点击事件\n onClick: function onClick(e) {\n // 点击菜单将触发这里\n\n var editor = this.editor;\n var isSeleEmpty = editor.selection.isSelectionEmpty();\n\n if (isSeleEmpty) {\n // 选区是空的，插入并选中一个“空白”\n editor.selection.createEmptyRange();\n }\n\n // 执行 underline 命令\n editor.cmd.do('underline');\n\n if (isSeleEmpty) {\n // 需要将选取折叠起来\n editor.selection.collapseRange();\n editor.selection.restoreSelection();\n }\n },\n\n // 试图改变 active 状态\n tryChangeActive: function tryChangeActive(e) {\n var editor = this.editor;\n var $elem = this.$elem;\n if (editor.cmd.queryCommandState('underline')) {\n this._active = true;\n $elem.addClass('w-e-active');\n } else {\n this._active = false;\n $elem.removeClass('w-e-active');\n }\n }\n};\n\n/*\n undo-menu\n*/\n// 构造函数\nfunction Undo(editor) {\n this.editor = editor;\n this.$elem = $('
      \\n \\n
      ');\n this.type = 'click';\n\n // 当前是否 active 状态\n this._active = false;\n}\n\n// 原型\nUndo.prototype = {\n constructor: Undo,\n\n // 点击事件\n onClick: function onClick(e) {\n // 点击菜单将触发这里\n\n var editor = this.editor;\n\n // 执行 undo 命令\n editor.cmd.do('undo');\n }\n};\n\n/*\n menu - list\n*/\n// 构造函数\nfunction List(editor) {\n var _this = this;\n\n this.editor = editor;\n this.$elem = $('
      ');\n this.type = 'droplist';\n\n // 当前是否 active 状态\n this._active = false;\n\n // 初始化 droplist\n this.droplist = new DropList(this, {\n width: 120,\n $title: $('

      设置列表

      '),\n type: 'list', // droplist 以列表形式展示\n list: [{ $elem: $(' 有序列表'), value: 'insertOrderedList' }, { $elem: $(' 无序列表'), value: 'insertUnorderedList' }],\n onClick: function onClick(value) {\n // 注意 this 是指向当前的 List 对象\n _this._command(value);\n }\n });\n}\n\n// 原型\nList.prototype = {\n constructor: List,\n\n // 执行命令\n _command: function _command(value) {\n var editor = this.editor;\n var $textElem = editor.$textElem;\n editor.selection.restoreSelection();\n if (editor.cmd.queryCommandState(value)) {\n return;\n }\n editor.cmd.do(value);\n\n // 验证列表是否被包裹在

      之内\n var $selectionElem = editor.selection.getSelectionContainerElem();\n if ($selectionElem.getNodeName() === 'LI') {\n $selectionElem = $selectionElem.parent();\n }\n if (/^ol|ul$/i.test($selectionElem.getNodeName()) === false) {\n return;\n }\n if ($selectionElem.equal($textElem)) {\n // 证明是顶级标签，没有被

      包裹\n return;\n }\n var $parent = $selectionElem.parent();\n if ($parent.equal($textElem)) {\n // $parent 是顶级标签，不能删除\n return;\n }\n\n $selectionElem.insertAfter($parent);\n $parent.remove();\n },\n\n // 试图改变 active 状态\n tryChangeActive: function tryChangeActive(e) {\n var editor = this.editor;\n var $elem = this.$elem;\n if (editor.cmd.queryCommandState('insertUnOrderedList') || editor.cmd.queryCommandState('insertOrderedList')) {\n this._active = true;\n $elem.addClass('w-e-active');\n } else {\n this._active = false;\n $elem.removeClass('w-e-active');\n }\n }\n};\n\n/*\n menu - justify\n*/\n// 构造函数\nfunction Justify(editor) {\n var _this = this;\n\n this.editor = editor;\n this.$elem = $('

      ');\n this.type = 'droplist';\n\n // 当前是否 active 状态\n this._active = false;\n\n // 初始化 droplist\n this.droplist = new DropList(this, {\n width: 100,\n $title: $('

      对齐方式

      '),\n type: 'list', // droplist 以列表形式展示\n list: [{ $elem: $(' 靠左'), value: 'justifyLeft' }, { $elem: $(' 居中'), value: 'justifyCenter' }, { $elem: $(' 靠右'), value: 'justifyRight' }],\n onClick: function onClick(value) {\n // 注意 this 是指向当前的 List 对象\n _this._command(value);\n }\n });\n}\n\n// 原型\nJustify.prototype = {\n constructor: Justify,\n\n // 执行命令\n _command: function _command(value) {\n var editor = this.editor;\n editor.cmd.do(value);\n }\n};\n\n/*\n menu - backcolor\n*/\n// 构造函数\nfunction BackColor(editor) {\n var _this = this;\n\n this.editor = editor;\n this.$elem = $('
      ');\n this.type = 'droplist';\n\n // 当前是否 active 状态\n this._active = false;\n\n // 初始化 droplist\n this.droplist = new DropList(this, {\n width: 120,\n $title: $('

      文字颜色

      '),\n type: 'inline-block', // droplist 内容以 block 形式展示\n list: [{ $elem: $(''), value: '#000000' }, { $elem: $(''), value: '#eeece0' }, { $elem: $(''), value: '#1c487f' }, { $elem: $(''), value: '#4d80bf' }, { $elem: $(''), value: '#c24f4a' }, { $elem: $(''), value: '#8baa4a' }, { $elem: $(''), value: '#7b5ba1' }, { $elem: $(''), value: '#46acc8' }, { $elem: $(''), value: '#f9963b' }, { $elem: $(''), value: '#ffffff' }],\n onClick: function onClick(value) {\n // 注意 this 是指向当前的 BackColor 对象\n _this._command(value);\n }\n });\n}\n\n// 原型\nBackColor.prototype = {\n constructor: BackColor,\n\n // 执行命令\n _command: function _command(value) {\n var editor = this.editor;\n editor.cmd.do('foreColor', value);\n }\n};\n\n/*\n menu - forecolor\n*/\n// 构造函数\nfunction ForeColor$1(editor) {\n var _this = this;\n\n this.editor = editor;\n this.$elem = $('
      ');\n this.type = 'droplist';\n\n // 当前是否 active 状态\n this._active = false;\n\n // 初始化 droplist\n this.droplist = new DropList(this, {\n width: 120,\n $title: $('

      背景色

      '),\n type: 'inline-block', // droplist 内容以 block 形式展示\n list: [{ $elem: $(''), value: '#000000' }, { $elem: $(''), value: '#eeece0' }, { $elem: $(''), value: '#1c487f' }, { $elem: $(''), value: '#4d80bf' }, { $elem: $(''), value: '#c24f4a' }, { $elem: $(''), value: '#8baa4a' }, { $elem: $(''), value: '#7b5ba1' }, { $elem: $(''), value: '#46acc8' }, { $elem: $(''), value: '#f9963b' }, { $elem: $(''), value: '#ffffff' }],\n onClick: function onClick(value) {\n // 注意 this 是指向当前的 ForeColor 对象\n _this._command(value);\n }\n });\n}\n\n// 原型\nForeColor$1.prototype = {\n constructor: ForeColor$1,\n\n // 执行命令\n _command: function _command(value) {\n var editor = this.editor;\n editor.cmd.do('backColor', value);\n }\n};\n\n/*\n menu - quote\n*/\n// 构造函数\nfunction Quote(editor) {\n this.editor = editor;\n this.$elem = $('
      \\n \\n
      ');\n this.type = 'click';\n\n // 当前是否 active 状态\n this._active = false;\n}\n\n// 原型\nQuote.prototype = {\n constructor: Quote,\n\n onClick: function onClick(e) {\n var editor = this.editor;\n editor.cmd.do('formatBlock', '
      ');\n },\n\n tryChangeActive: function tryChangeActive(e) {\n var editor = this.editor;\n var $elem = this.$elem;\n var reg = /^BLOCKQUOTE$/i;\n var cmdValue = editor.cmd.queryCommandValue('formatBlock');\n if (reg.test(cmdValue)) {\n this._active = true;\n $elem.addClass('w-e-active');\n } else {\n this._active = false;\n $elem.removeClass('w-e-active');\n }\n }\n};\n\n/*\n menu - code\n*/\n// 构造函数\nfunction Code(editor) {\n this.editor = editor;\n this.$elem = $('
      \\n \\n
      ');\n this.type = 'panel';\n\n // 当前是否 active 状态\n this._active = false;\n}\n\n// 原型\nCode.prototype = {\n constructor: Code,\n\n onClick: function onClick(e) {\n var editor = this.editor;\n var $startElem = editor.selection.getSelectionStartElem();\n var $endElem = editor.selection.getSelectionEndElem();\n var isSeleEmpty = editor.selection.isSelectionEmpty();\n var selectionText = editor.selection.getSelectionText();\n var $code = void 0;\n\n if (!$startElem.equal($endElem)) {\n // 跨元素选择，不做处理\n editor.selection.restoreSelection();\n return;\n }\n if (!isSeleEmpty) {\n // 选取不是空，用 包裹即可\n $code = $('' + selectionText + '');\n editor.cmd.do('insertElem', $code);\n editor.selection.createRangeByElem($code, false);\n editor.selection.restoreSelection();\n return;\n }\n\n // 选取是空，且没有夸元素选择，则插入 
      \n        if (this._active) {\n            // 选中状态，将编辑内容\n            this._createPanel($startElem.html());\n        } else {\n            // 未选中状态，将创建内容\n            this._createPanel();\n        }\n    },\n\n    _createPanel: function _createPanel(value) {\n        var _this = this;\n\n        // value - 要编辑的内容\n        value = value || '';\n        var type = !value ? 'new' : 'edit';\n        var textId = getRandom('texxt');\n        var btnId = getRandom('btn');\n\n        var panel = new Panel(this, {\n            width: 500,\n            // 一个 Panel 包含多个 tab\n            tabs: [{\n                // 标题\n                title: '插入代码',\n                // 模板\n                tpl: '
      \\n                        \\n                        
      \\n                            \\n                        
      \\n                    
      ',\n                // 事件绑定\n                events: [\n                // 插入代码\n                {\n                    selector: '#' + btnId,\n                    type: 'click',\n                    fn: function fn() {\n                        var $text = $('#' + textId);\n                        var text = $text.val() || $text.html();\n                        text = replaceHtmlSymbol(text);\n                        if (type === 'new') {\n                            // 新插入\n                            _this._insertCode(text);\n                        } else {\n                            // 编辑更新\n                            _this._updateCode(text);\n                        }\n\n                        // 返回 true，表示该事件执行完之后，panel 要关闭。否则 panel 不会关闭\n                        return true;\n                    }\n                }]\n            } // first tab end\n            ] // tabs end\n        }); // new Panel end\n\n        // 显示 panel\n        panel.show();\n\n        // 记录属性\n        this.panel = panel;\n    },\n\n    // 插入代码\n    _insertCode: function _insertCode(value) {\n        var editor = this.editor;\n        editor.cmd.do('insertHTML', '
      ' + value + '

      ');\n    },\n\n    // 更新代码\n    _updateCode: function _updateCode(value) {\n        var editor = this.editor;\n        var $selectionELem = editor.selection.getSelectionContainerElem();\n        if (!$selectionELem) {\n            return;\n        }\n        $selectionELem.html(value);\n        editor.selection.restoreSelection();\n    },\n\n    // 试图改变 active 状态\n    tryChangeActive: function tryChangeActive(e) {\n        var editor = this.editor;\n        var $elem = this.$elem;\n        var $selectionELem = editor.selection.getSelectionContainerElem();\n        if (!$selectionELem) {\n            return;\n        }\n        var $parentElem = $selectionELem.parent();\n        if ($selectionELem.getNodeName() === 'CODE' && $parentElem.getNodeName() === 'PRE') {\n            this._active = true;\n            $elem.addClass('w-e-active');\n        } else {\n            this._active = false;\n            $elem.removeClass('w-e-active');\n        }\n    }\n};\n\n/*\n    menu - emoticon\n*/\n// 构造函数\nfunction Emoticon(editor) {\n    this.editor = editor;\n    this.$elem = $('
      \\n            \\n        
      ');\n    this.type = 'panel';\n\n    // 当前是否 active 状态\n    this._active = false;\n}\n\n// 原型\nEmoticon.prototype = {\n    constructor: Emoticon,\n\n    onClick: function onClick() {\n        this._createPanel();\n    },\n\n    _createPanel: function _createPanel() {\n        var _this = this;\n\n        // 拼接表情字符串\n        var faceHtml = '';\n        var faceStr = '😀 😃 😄 😁 😆 😅 😂  😊 😇 🙂 🙃 😉 😌 😍 😘 😗 😙 😚 😋 😜 😝 😛 🤑 🤗 🤓 😎 😏 😒 😞 😔 😟 😕 🙁  😣 😖 😫 😩 😤 😠 😡 😶 😐 😑 😯 😦 😧 😮 😲 😵 😳 😱 😨 😰 😢 😥 😭 😓 😪 😴 🙄 🤔 😬 🤐';\n        faceStr.split(/\\s/).forEach(function (item) {\n            if (item) {\n                faceHtml += '' + item + '';\n            }\n        });\n\n        var handHtml = '';\n        var handStr = '🙌 👏 👋 👍 👎 👊 ✊ ️👌 ✋ 👐 💪 🙏 ️👆 👇 👈 👉 🖕 🖐 🤘 🖖';\n        handStr.split(/\\s/).forEach(function (item) {\n            if (item) {\n                handHtml += '' + item + '';\n            }\n        });\n\n        var panel = new Panel(this, {\n            width: 300,\n            height: 200,\n            // 一个 Panel 包含多个 tab\n            tabs: [{\n                // 标题\n                title: '表情',\n                // 模板\n                tpl: '
      ' + faceHtml + '
      ',\n                // 事件绑定\n                events: [{\n                    selector: 'span.w-e-item',\n                    type: 'click',\n                    fn: function fn(e) {\n                        var target = e.target;\n                        _this._insert(target.innerHTML);\n                        // 返回 true，表示该事件执行完之后，panel 要关闭。否则 panel 不会关闭\n                        return true;\n                    }\n                }]\n            }, // first tab end\n            {\n                // 标题\n                title: '手势',\n                // 模板\n                tpl: '
      ' + handHtml + '
      ',\n                // 事件绑定\n                events: [{\n                    selector: 'span.w-e-item',\n                    type: 'click',\n                    fn: function fn(e) {\n                        var target = e.target;\n                        _this._insert(target.innerHTML);\n                        // 返回 true，表示该事件执行完之后，panel 要关闭。否则 panel 不会关闭\n                        return true;\n                    }\n                }]\n            } // second tab end\n            ] // tabs end\n        });\n\n        // 显示 panel\n        panel.show();\n\n        // 记录属性\n        this.panel = panel;\n    },\n\n    // 插入表情\n    _insert: function _insert(emoji) {\n        var editor = this.editor;\n        editor.cmd.do('insertHTML', '' + emoji + '');\n    }\n};\n\n/*\n    menu - table\n*/\n// 构造函数\nfunction Table(editor) {\n    this.editor = editor;\n    this.$elem = $('
      ');\n    this.type = 'panel';\n\n    // 当前是否 active 状态\n    this._active = false;\n}\n\n// 原型\nTable.prototype = {\n    constructor: Table,\n\n    onClick: function onClick() {\n        if (this._active) {\n            // 编辑现有表格\n            this._createEditPanel();\n        } else {\n            // 插入新表格\n            this._createInsertPanel();\n        }\n    },\n\n    // 创建插入新表格的 panel\n    _createInsertPanel: function _createInsertPanel() {\n        var _this = this;\n\n        // 用到的 id\n        var btnInsertId = getRandom('btn');\n        var textRowNum = getRandom('row');\n        var textColNum = getRandom('col');\n\n        var panel = new Panel(this, {\n            width: 250,\n            // panel 包含多个 tab\n            tabs: [{\n                // 标题\n                title: '插入表格',\n                // 模板\n                tpl: '
      \\n                        
      \\n                            \\u521B\\u5EFA\\n                            \\n                            \\u884C\\n                            \\n                            \\u5217\\u7684\\u8868\\u683C\\n                        
      \\n                        
      \\n                            \\n                        
      \\n                    
      ',\n                // 事件绑定\n                events: [{\n                    // 点击按钮，插入表格\n                    selector: '#' + btnInsertId,\n                    type: 'click',\n                    fn: function fn() {\n                        var rowNum = parseInt($('#' + textRowNum).val());\n                        var colNum = parseInt($('#' + textColNum).val());\n\n                        if (rowNum && colNum && rowNum > 0 && colNum > 0) {\n                            // form 数据有效\n                            _this._insert(rowNum, colNum);\n                        }\n\n                        // 返回 true，表示该事件执行完之后，panel 要关闭。否则 panel 不会关闭\n                        return true;\n                    }\n                }]\n            } // first tab end\n            ] // tabs end\n        }); // panel end\n\n        // 展示 panel\n        panel.show();\n\n        // 记录属性\n        this.panel = panel;\n    },\n\n    // 插入表格\n    _insert: function _insert(rowNum, colNum) {\n        // 拼接 table 模板\n        var r = void 0,\n            c = void 0;\n        var html = '';\n        for (r = 0; r < rowNum; r++) {\n            html += '';\n            if (r === 0) {\n                for (c = 0; c < colNum; c++) {\n                    html += '';\n                }\n            } else {\n                for (c = 0; c < colNum; c++) {\n                    html += '';\n                }\n            }\n            html += '';\n        }\n        html += '
        

      ';\n\n        // 执行命令\n        var editor = this.editor;\n        editor.cmd.do('insertHTML', html);\n\n        // 防止 firefox 下出现 resize 的控制点\n        editor.cmd.do('enableObjectResizing', false);\n        editor.cmd.do('enableInlineTableEditing', false);\n    },\n\n    // 创建编辑表格的 panel\n    _createEditPanel: function _createEditPanel() {\n        var _this2 = this;\n\n        // 可用的 id\n        var addRowBtnId = getRandom('add-row');\n        var addColBtnId = getRandom('add-col');\n        var delRowBtnId = getRandom('del-row');\n        var delColBtnId = getRandom('del-col');\n        var delTableBtnId = getRandom('del-table');\n\n        // 创建 panel 对象\n        var panel = new Panel(this, {\n            width: 320,\n            // panel 包含多个 tab\n            tabs: [{\n                // 标题\n                title: '编辑表格',\n                // 模板\n                tpl: '
      \\n                        
      \\n                            \\n                            \\n                            \\n                            \\n                        
      \\n                        
      \\n                            \\n                        \\n                    
      ',\n                // 事件绑定\n                events: [{\n                    // 增加行\n                    selector: '#' + addRowBtnId,\n                    type: 'click',\n                    fn: function fn() {\n                        _this2._addRow();\n                        // 返回 true，表示该事件执行完之后，panel 要关闭。否则 panel 不会关闭\n                        return true;\n                    }\n                }, {\n                    // 增加列\n                    selector: '#' + addColBtnId,\n                    type: 'click',\n                    fn: function fn() {\n                        _this2._addCol();\n                        // 返回 true，表示该事件执行完之后，panel 要关闭。否则 panel 不会关闭\n                        return true;\n                    }\n                }, {\n                    // 删除行\n                    selector: '#' + delRowBtnId,\n                    type: 'click',\n                    fn: function fn() {\n                        _this2._delRow();\n                        // 返回 true，表示该事件执行完之后，panel 要关闭。否则 panel 不会关闭\n                        return true;\n                    }\n                }, {\n                    // 删除列\n                    selector: '#' + delColBtnId,\n                    type: 'click',\n                    fn: function fn() {\n                        _this2._delCol();\n                        // 返回 true，表示该事件执行完之后，panel 要关闭。否则 panel 不会关闭\n                        return true;\n                    }\n                }, {\n                    // 删除表格\n                    selector: '#' + delTableBtnId,\n                    type: 'click',\n                    fn: function fn() {\n                        _this2._delTable();\n                        // 返回 true，表示该事件执行完之后，panel 要关闭。否则 panel 不会关闭\n                        return true;\n                    }\n                }]\n            }]\n        });\n        // 显示 panel\n        panel.show();\n    },\n\n    // 获取选中的单元格的位置信息\n    _getLocationData: function _getLocationData() {\n        var result = {};\n        var editor = this.editor;\n        var $selectionELem = editor.selection.getSelectionContainerElem();\n        if (!$selectionELem) {\n            return;\n        }\n        var nodeName = $selectionELem.getNodeName();\n        if (nodeName !== 'TD' && nodeName !== 'TH') {\n            return;\n        }\n\n        // 获取 td index\n        var $tr = $selectionELem.parent();\n        var $tds = $tr.children();\n        var tdLength = $tds.length;\n        $tds.forEach(function (td, index) {\n            if (td === $selectionELem[0]) {\n                // 记录并跳出循环\n                result.td = {\n                    index: index,\n                    elem: td,\n                    length: tdLength\n                };\n                return false;\n            }\n        });\n\n        // 获取 tr index\n        var $tbody = $tr.parent();\n        var $trs = $tbody.children();\n        var trLength = $trs.length;\n        $trs.forEach(function (tr, index) {\n            if (tr === $tr[0]) {\n                // 记录并跳出循环\n                result.tr = {\n                    index: index,\n                    elem: tr,\n                    length: trLength\n                };\n                return false;\n            }\n        });\n\n        // 返回结果\n        return result;\n    },\n\n    // 增加行\n    _addRow: function _addRow() {\n        // 获取当前单元格的位置信息\n        var locationData = this._getLocationData();\n        if (!locationData) {\n            return;\n        }\n        var trData = locationData.tr;\n        var $currentTr = $(trData.elem);\n        var tdData = locationData.td;\n        var tdLength = tdData.length;\n\n        // 拼接即将插入的字符串\n        var newTr = document.createElement('tr');\n        var tpl = '',\n            i = void 0;\n        for (i = 0; i < tdLength; i++) {\n            tpl += ' ';\n        }\n        newTr.innerHTML = tpl;\n        // 插入\n        $(newTr).insertAfter($currentTr);\n    },\n\n    // 增加列\n    _addCol: function _addCol() {\n        // 获取当前单元格的位置信息\n        var locationData = this._getLocationData();\n        if (!locationData) {\n            return;\n        }\n        var trData = locationData.tr;\n        var tdData = locationData.td;\n        var tdIndex = tdData.index;\n        var $currentTr = $(trData.elem);\n        var $trParent = $currentTr.parent();\n        var $trs = $trParent.children();\n\n        // 遍历所有行\n        $trs.forEach(function (tr) {\n            var $tr = $(tr);\n            var $tds = $tr.children();\n            var $currentTd = $tds.get(tdIndex);\n            var name = $currentTd.getNodeName().toLowerCase();\n\n            // new 一个 td，并插入\n            var newTd = document.createElement(name);\n            $(newTd).insertAfter($currentTd);\n        });\n    },\n\n    // 删除行\n    _delRow: function _delRow() {\n        // 获取当前单元格的位置信息\n        var locationData = this._getLocationData();\n        if (!locationData) {\n            return;\n        }\n        var trData = locationData.tr;\n        var $currentTr = $(trData.elem);\n        $currentTr.remove();\n    },\n\n    // 删除列\n    _delCol: function _delCol() {\n        // 获取当前单元格的位置信息\n        var locationData = this._getLocationData();\n        if (!locationData) {\n            return;\n        }\n        var trData = locationData.tr;\n        var tdData = locationData.td;\n        var tdIndex = tdData.index;\n        var $currentTr = $(trData.elem);\n        var $trParent = $currentTr.parent();\n        var $trs = $trParent.children();\n\n        // 遍历所有行\n        $trs.forEach(function (tr) {\n            var $tr = $(tr);\n            var $tds = $tr.children();\n            var $currentTd = $tds.get(tdIndex);\n            // 删除\n            $currentTd.remove();\n        });\n    },\n\n    // 删除表格\n    _delTable: function _delTable() {\n        var editor = this.editor;\n        var $selectionELem = editor.selection.getSelectionContainerElem();\n        if (!$selectionELem) {\n            return;\n        }\n        var $table = $selectionELem.parentUntil('table');\n        if (!$table) {\n            return;\n        }\n        $table.remove();\n    },\n\n    // 试图改变 active 状态\n    tryChangeActive: function tryChangeActive(e) {\n        var editor = this.editor;\n        var $elem = this.$elem;\n        var $selectionELem = editor.selection.getSelectionContainerElem();\n        if (!$selectionELem) {\n            return;\n        }\n        var nodeName = $selectionELem.getNodeName();\n        if (nodeName === 'TD' || nodeName === 'TH') {\n            this._active = true;\n            $elem.addClass('w-e-active');\n        } else {\n            this._active = false;\n            $elem.removeClass('w-e-active');\n        }\n    }\n};\n\n/*\n    menu - video\n*/\n// 构造函数\nfunction Video(editor) {\n    this.editor = editor;\n    this.$elem = $('
      ');\n    this.type = 'panel';\n\n    // 当前是否 active 状态\n    this._active = false;\n}\n\n// 原型\nVideo.prototype = {\n    constructor: Video,\n\n    onClick: function onClick() {\n        this._createPanel();\n    },\n\n    _createPanel: function _createPanel() {\n        var _this = this;\n\n        // 创建 id\n        var textValId = getRandom('text-val');\n        var btnId = getRandom('btn');\n\n        // 创建 panel\n        var panel = new Panel(this, {\n            width: 350,\n            // 一个 panel 多个 tab\n            tabs: [{\n                // 标题\n                title: '插入视频',\n                // 模板\n                tpl: '
      \\n                        \"/>\\n                        
      \\n                            \\n                        
      \\n                    
      ',\n                // 事件绑定\n                events: [{\n                    selector: '#' + btnId,\n                    type: 'click',\n                    fn: function fn() {\n                        var $text = $('#' + textValId);\n                        var val = $text.val().trim();\n\n                        // 测试用视频地址\n                        // \n\n                        if (val) {\n                            // 插入视频\n                            _this._insert(val);\n                        }\n\n                        // 返回 true，表示该事件执行完之后，panel 要关闭。否则 panel 不会关闭\n                        return true;\n                    }\n                }]\n            } // first tab end\n            ] // tabs end\n        }); // panel end\n\n        // 显示 panel\n        panel.show();\n\n        // 记录属性\n        this.panel = panel;\n    },\n\n    // 插入视频\n    _insert: function _insert(val) {\n        var editor = this.editor;\n        editor.cmd.do('insertHTML', val + '

      ');\n    }\n};\n\n/*\n    menu - img\n*/\n// 构造函数\nfunction Image(editor) {\n    this.editor = editor;\n    this.$elem = $('
      ');\n    this.type = 'panel';\n\n    // 当前是否 active 状态\n    this._active = false;\n}\n\n// 原型\nImage.prototype = {\n    constructor: Image,\n\n    onClick: function onClick() {\n        if (this._active) {\n            this._createEditPanel();\n        } else {\n            this._createInsertPanel();\n        }\n    },\n\n    _createEditPanel: function _createEditPanel() {\n        var editor = this.editor;\n\n        // id\n        var width30 = getRandom('width-30');\n        var width50 = getRandom('width-50');\n        var width100 = getRandom('width-100');\n        var delBtn = getRandom('del-btn');\n\n        // tab 配置\n        var tabsConfig = [{\n            title: '编辑图片',\n            tpl: '
      \\n                    
      \\n                        \\u6700\\u5927\\u5BBD\\u5EA6\\uFF1A\\n                        \\n                        \\n                        \\n                    
      \\n                    
      \\n                        \\n                    \\n                
      ',\n            events: [{\n                selector: '#' + width30,\n                type: 'click',\n                fn: function fn() {\n                    var $img = editor._selectedImg;\n                    if ($img) {\n                        $img.css('max-width', '30%');\n                    }\n                    // 返回 true，表示该事件执行完之后，panel 要关闭。否则 panel 不会关闭\n                    return true;\n                }\n            }, {\n                selector: '#' + width50,\n                type: 'click',\n                fn: function fn() {\n                    var $img = editor._selectedImg;\n                    if ($img) {\n                        $img.css('max-width', '50%');\n                    }\n                    // 返回 true，表示该事件执行完之后，panel 要关闭。否则 panel 不会关闭\n                    return true;\n                }\n            }, {\n                selector: '#' + width100,\n                type: 'click',\n                fn: function fn() {\n                    var $img = editor._selectedImg;\n                    if ($img) {\n                        $img.css('max-width', '100%');\n                    }\n                    // 返回 true，表示该事件执行完之后，panel 要关闭。否则 panel 不会关闭\n                    return true;\n                }\n            }, {\n                selector: '#' + delBtn,\n                type: 'click',\n                fn: function fn() {\n                    var $img = editor._selectedImg;\n                    if ($img) {\n                        $img.remove();\n                    }\n                    // 返回 true，表示该事件执行完之后，panel 要关闭。否则 panel 不会关闭\n                    return true;\n                }\n            }]\n        }];\n\n        // 创建 panel 并显示\n        var panel = new Panel(this, {\n            width: 300,\n            tabs: tabsConfig\n        });\n        panel.show();\n\n        // 记录属性\n        this.panel = panel;\n    },\n\n    _createInsertPanel: function _createInsertPanel() {\n        var editor = this.editor;\n        var uploadImg = editor.uploadImg;\n        var config = editor.config;\n\n        // id\n        var upTriggerId = getRandom('up-trigger');\n        var upFileId = getRandom('up-file');\n        var linkUrlId = getRandom('link-url');\n        var linkBtnId = getRandom('link-btn');\n\n        // tabs 的配置\n        var tabsConfig = [{\n            title: '上传图片',\n            tpl: '
      \\n                    
      \\n                        \\n                    
      \\n                    
      \\n                        \\n                    
      \\n                
      ',\n            events: [{\n                // 触发选择图片\n                selector: '#' + upTriggerId,\n                type: 'click',\n                fn: function fn() {\n                    var $file = $('#' + upFileId);\n                    var fileElem = $file[0];\n                    if (fileElem) {\n                        fileElem.click();\n                    } else {\n                        // 返回 true 可关闭 panel\n                        return true;\n                    }\n                }\n            }, {\n                // 选择图片完毕\n                selector: '#' + upFileId,\n                type: 'change',\n                fn: function fn() {\n                    var $file = $('#' + upFileId);\n                    var fileElem = $file[0];\n                    if (!fileElem) {\n                        // 返回 true 可关闭 panel\n                        return true;\n                    }\n\n                    // 获取选中的 file 对象列表\n                    var fileList = fileElem.files;\n                    if (fileList.length) {\n                        uploadImg.uploadImg(fileList);\n                    }\n\n                    // 返回 true 可关闭 panel\n                    return true;\n                }\n            }]\n        }, // first tab end\n        {\n            title: '网络图片',\n            tpl: '
      \\n                    \\n                    
      \\n                        \\n                    
      \\n                
      ',\n            events: [{\n                selector: '#' + linkBtnId,\n                type: 'click',\n                fn: function fn() {\n                    var $linkUrl = $('#' + linkUrlId);\n                    var url = $linkUrl.val().trim();\n\n                    if (url) {\n                        uploadImg.insertLinkImg(url);\n                    }\n\n                    // 返回 true 表示函数执行结束之后关闭 panel\n                    return true;\n                }\n            }]\n        } // second tab end\n        ]; // tabs end\n\n        // 判断 tabs 的显示\n        var tabsConfigResult = [];\n        if ((config.uploadImgShowBase64 || config.uploadImgServer) && window.FileReader) {\n            // 显示“上传图片”\n            tabsConfigResult.push(tabsConfig[0]);\n        }\n        if (config.showLinkImg) {\n            // 显示“网络图片”\n            tabsConfigResult.push(tabsConfig[1]);\n        }\n\n        // 创建 panel 并显示\n        var panel = new Panel(this, {\n            width: 300,\n            tabs: tabsConfigResult\n        });\n        panel.show();\n\n        // 记录属性\n        this.panel = panel;\n    },\n\n    // 试图改变 active 状态\n    tryChangeActive: function tryChangeActive(e) {\n        var editor = this.editor;\n        var $elem = this.$elem;\n        if (editor._selectedImg) {\n            this._active = true;\n            $elem.addClass('w-e-active');\n        } else {\n            this._active = false;\n            $elem.removeClass('w-e-active');\n        }\n    }\n};\n\n/*\n    所有菜单的汇总\n*/\n\n// 存储菜单的构造函数\nvar MenuConstructors = {};\n\nMenuConstructors.bold = Bold;\n\nMenuConstructors.head = Head;\n\nMenuConstructors.link = Link;\n\nMenuConstructors.italic = Italic;\n\nMenuConstructors.redo = Redo;\n\nMenuConstructors.strikeThrough = StrikeThrough;\n\nMenuConstructors.underline = Underline;\n\nMenuConstructors.undo = Undo;\n\nMenuConstructors.list = List;\n\nMenuConstructors.justify = Justify;\n\nMenuConstructors.foreColor = BackColor;\n\nMenuConstructors.backColor = ForeColor$1;\n\nMenuConstructors.quote = Quote;\n\nMenuConstructors.code = Code;\n\nMenuConstructors.emoticon = Emoticon;\n\nMenuConstructors.table = Table;\n\nMenuConstructors.video = Video;\n\nMenuConstructors.image = Image;\n\n/*\n    菜单集合\n*/\n// 构造函数\nfunction Menus(editor) {\n    this.editor = editor;\n    this.menus = {};\n}\n\n// 修改原型\nMenus.prototype = {\n    constructor: Menus,\n\n    // 初始化菜单\n    init: function init() {\n        var _this = this;\n\n        var editor = this.editor;\n        var config = editor.config || {};\n        var configMenus = config.menus || []; // 获取配置中的菜单\n\n        // 根据配置信息，创建菜单\n        configMenus.forEach(function (menuKey) {\n            var MenuConstructor = MenuConstructors[menuKey];\n            if (MenuConstructor && typeof MenuConstructor === 'function') {\n                // 创建单个菜单\n                _this.menus[menuKey] = new MenuConstructor(editor);\n            }\n        });\n\n        // 添加到菜单栏\n        this._addToToolbar();\n\n        // 绑定事件\n        this._bindEvent();\n    },\n\n    // 添加到菜单栏\n    _addToToolbar: function _addToToolbar() {\n        var editor = this.editor;\n        var $toolbarElem = editor.$toolbarElem;\n        var menus = this.menus;\n        objForEach(menus, function (key, menu) {\n            var $elem = menu.$elem;\n            if ($elem) {\n                $toolbarElem.append($elem);\n            }\n        });\n    },\n\n    // 绑定菜单 click mouseenter 事件\n    _bindEvent: function _bindEvent() {\n        var menus = this.menus;\n        var editor = this.editor;\n        objForEach(menus, function (key, menu) {\n            var type = menu.type;\n            if (!type) {\n                return;\n            }\n            var $elem = menu.$elem;\n            var droplist = menu.droplist;\n            var panel = menu.panel;\n\n            // 点击类型，例如 bold\n            if (type === 'click' && menu.onClick) {\n                $elem.on('click', function (e) {\n                    if (editor.selection.getRange() == null) {\n                        return;\n                    }\n                    menu.onClick(e);\n                });\n            }\n\n            // 下拉框，例如 head\n            if (type === 'droplist' && droplist) {\n                $elem.on('mouseenter', function (e) {\n                    if (editor.selection.getRange() == null) {\n                        return;\n                    }\n                    // 显示\n                    droplist.showTimeoutId = setTimeout(function () {\n                        droplist.show();\n                    }, 200);\n                }).on('mouseleave', function (e) {\n                    // 隐藏\n                    droplist.hideTimeoutId = setTimeout(function () {\n                        droplist.hide();\n                    }, 0);\n                });\n            }\n\n            // 弹框类型，例如 link\n            if (type === 'panel' && menu.onClick) {\n                $elem.on('click', function (e) {\n                    e.stopPropagation();\n                    if (editor.selection.getRange() == null) {\n                        return;\n                    }\n                    // 在自定义事件中显示 panel\n                    menu.onClick(e);\n                });\n            }\n        });\n    },\n\n    // 尝试修改菜单状态\n    changeActive: function changeActive() {\n        var menus = this.menus;\n        objForEach(menus, function (key, menu) {\n            if (menu.tryChangeActive) {\n                setTimeout(function () {\n                    menu.tryChangeActive();\n                }, 100);\n            }\n        });\n    }\n};\n\n/*\n    粘贴信息的处理\n*/\n\n// 获取粘贴的纯文本\nfunction getPasteText(e) {\n    var clipboardData = e.clipboardData || e.originalEvent && e.originalEvent.clipboardData;\n    var pasteText = void 0;\n    if (clipboardData == null) {\n        pasteText = window.clipboardData && window.clipboardData.getData('text');\n    } else {\n        pasteText = clipboardData.getData('text/plain');\n    }\n\n    return replaceHtmlSymbol(pasteText);\n}\n\n// 获取粘贴的html\nfunction getPasteHtml(e) {\n    var clipboardData = e.clipboardData || e.originalEvent && e.originalEvent.clipboardData;\n    var pasteText = void 0,\n        pasteHtml = void 0;\n    if (clipboardData == null) {\n        pasteText = window.clipboardData && window.clipboardData.getData('text');\n    } else {\n        pasteText = clipboardData.getData('text/plain');\n        pasteHtml = clipboardData.getData('text/html');\n    }\n    if (!pasteHtml && pasteText) {\n        pasteHtml = '
      ' + replaceHtmlSymbol(pasteText) + '
      ';\n    }\n    if (!pasteHtml) {\n        return;\n    }\n\n    // 过滤word中状态过来的无用字符\n    var docSplitHtml = pasteHtml.split('');\n    if (docSplitHtml.length === 2) {\n        pasteHtml = docSplitHtml[0];\n    }\n\n    // 过滤无用标签\n    pasteHtml = pasteHtml.replace(/<(meta|script|link).+?>/igm, '');\n\n    // 过滤样式\n    pasteHtml = pasteHtml.replace(/\\s?(class|style)=('|\").+?('|\")/igm, '');\n\n    return pasteHtml;\n}\n\n// 获取粘贴的图片文件\nfunction getPasteImgs(e) {\n    var result = [];\n    var txt = getPasteText(e);\n    if (txt) {\n        // 有文字，就忽略图片\n        return result;\n    }\n\n    var clipboardData = e.clipboardData || e.originalEvent && e.originalEvent.clipboardData || {};\n    var items = clipboardData.items;\n    if (!items) {\n        return result;\n    }\n\n    objForEach(items, function (key, value) {\n        var type = value.type;\n        if (/image/i.test(type)) {\n            result.push(value.getAsFile());\n        }\n    });\n\n    return result;\n}\n\n/*\n    编辑区域\n*/\n\n// 构造函数\nfunction Text(editor) {\n    this.editor = editor;\n}\n\n// 修改原型\nText.prototype = {\n    constructor: Text,\n\n    // 初始化\n    init: function init() {\n        // 绑定事件\n        this._bindEvent();\n    },\n\n    // 清空内容\n    clear: function clear() {\n        this.html('

      ');\n    },\n\n    // 获取 设置 html\n    html: function html(val) {\n        var editor = this.editor;\n        var $textElem = editor.$textElem;\n        if (val == null) {\n            return $textElem.html();\n        } else {\n            $textElem.html(val);\n\n            // 初始化选取，将光标定位到内容尾部\n            editor.initSelection();\n        }\n    },\n\n    // 获取 设置 text\n    text: function text(val) {\n        var editor = this.editor;\n        var $textElem = editor.$textElem;\n        if (val == null) {\n            return $textElem.text();\n        } else {\n            $textElem.text('
      ' + val + '
      ');\n\n            // 初始化选取，将光标定位到内容尾部\n            editor.initSelection();\n        }\n    },\n\n    // 追加内容\n    append: function append(html) {\n        var editor = this.editor;\n        var $textElem = editor.$textElem;\n        $textElem.append($(html));\n\n        // 初始化选取，将光标定位到内容尾部\n        editor.initSelection();\n    },\n\n    // 绑定事件\n    _bindEvent: function _bindEvent() {\n        // 实时保存选取\n        this._saveRangeRealTime();\n\n        // 按回车建时的特殊处理\n        this._enterKeyHandle();\n\n        // 清空时保留 

      \n        this._clearHandle();\n\n        // 粘贴事件（粘贴文字，粘贴图片）\n        this._pasteHandle();\n\n        // tab 特殊处理\n        this._tabHandle();\n\n        // img 点击\n        this._imgHandle();\n    },\n\n    // 实时保存选取\n    _saveRangeRealTime: function _saveRangeRealTime() {\n        var editor = this.editor;\n        var $textElem = editor.$textElem;\n\n        // 保存当前的选区\n        function saveRange(e) {\n            // 随时保存选区\n            editor.selection.saveRange();\n            // 更新按钮 ative 状态\n            editor.menus.changeActive();\n        }\n        // 按键后保存\n        $textElem.on('keyup', saveRange);\n        $textElem.on('mousedown', function (e) {\n            // mousedown 状态下，鼠标滑动到编辑区域外面，也需要保存选区\n            $textElem.on('mouseleave', saveRange);\n        });\n        $textElem.on('mouseup', function (e) {\n            saveRange();\n            // 在编辑器区域之内完成点击，取消鼠标滑动到编辑区外面的事件\n            $textElem.off('mouseleave', saveRange);\n        });\n    },\n\n    // 按回车键时的特殊处理\n    _enterKeyHandle: function _enterKeyHandle() {\n        var editor = this.editor;\n        var $textElem = editor.$textElem;\n\n        // 将回车之后生成的非 
       的顶级标签，改为 
      \n        function pHandle(e) {\n            var $selectionElem = editor.selection.getSelectionContainerElem();\n            var $parentElem = $selectionElem.parent();\n            if (!$parentElem.equal($textElem)) {\n                // 不是顶级标签\n                return;\n            }\n            var nodeName = $selectionElem.getNodeName();\n            if (nodeName === 'P') {\n                // 当前的标签是 P ，不用做处理\n                return;\n            }\n\n            if ($selectionElem.text()) {\n                // 有内容，不做处理\n                return;\n            }\n\n            // 插入 
       ，并将选取定位到 
      ，删除当前标签\n            var $p = $('

      ');\n            $p.insertBefore($selectionElem);\n            editor.selection.createRangeByElem($p, true);\n            editor.selection.restoreSelection();\n            $selectionElem.remove();\n        }\n\n        $textElem.on('keyup', function (e) {\n            if (e.keyCode !== 13) {\n                // 不是回车键\n                return;\n            }\n            // 将回车之后生成的非 
       的顶级标签，改为 
      \n            pHandle(e);\n        });\n\n        // 
       回车时 特殊处理\n        function codeHandle(e) {\n            var $selectionElem = editor.selection.getSelectionContainerElem();\n            if (!$selectionElem) {\n                return;\n            }\n            var $parentElem = $selectionElem.parent();\n            var selectionNodeName = $selectionElem.getNodeName();\n            var parentNodeName = $parentElem.getNodeName();\n\n            if (selectionNodeName !== 'CODE' || parentNodeName !== 'PRE') {\n                // 不符合要求 忽略\n                return;\n            }\n\n            if (!editor.cmd.queryCommandSupported('insertHTML')) {\n                // 必须原生支持 insertHTML 命令\n                return;\n            }\n\n            var _startOffset = editor.selection.getRange().startOffset;\n            editor.cmd.do('insertHTML', '\\n');\n            editor.selection.saveRange();\n            if (editor.selection.getRange().startOffset === _startOffset) {\n                // 没起作用，再来一遍\n                editor.cmd.do('insertHTML', '\\n');\n            }\n\n            // 阻止默认行为\n            e.preventDefault();\n        }\n\n        $textElem.on('keydown', function (e) {\n            if (e.keyCode !== 13) {\n                // 不是回车键\n                return;\n            }\n            // 
       回车时 特殊处理\n            codeHandle(e);\n        });\n    },\n\n    // 清空时保留 

      \n    _clearHandle: function _clearHandle() {\n        var editor = this.editor;\n        var $textElem = editor.$textElem;\n\n        $textElem.on('keydown', function (e) {\n            if (e.keyCode !== 8) {\n                return;\n            }\n            var txtHtml = $textElem.html().toLowerCase().trim();\n            if (txtHtml === '

      ') {\n                // 最后剩下一个空行，就不再删除了\n                e.preventDefault();\n                return;\n            }\n        });\n\n        $textElem.on('keyup', function (e) {\n            if (e.keyCode !== 8) {\n                return;\n            }\n            var $p = void 0;\n            var txtHtml = $textElem.html().toLowerCase().trim();\n\n            // firefox 时用 txtHtml === '
      ' 判断，其他用 !txtHtml 判断\n            if (!txtHtml || txtHtml === '
      ') {\n                // 内容空了\n                $p = $('

      ');\n                $textElem.html(''); // 一定要先清空，否则在 firefox 下有问题\n                $textElem.append($p);\n                editor.selection.createRangeByElem($p, false, true);\n                editor.selection.restoreSelection();\n            }\n        });\n    },\n\n    // 粘贴事件（粘贴文字 粘贴图片）\n    _pasteHandle: function _pasteHandle() {\n        var editor = this.editor;\n        var $textElem = editor.$textElem;\n\n        // 粘贴文字\n        $textElem.on('paste', function (e) {\n            if (UA.isIE()) {\n                // IE 下放弃下面的判断\n                return;\n            }\n\n            // 阻止默认行为，使用 execCommand 的粘贴命令\n            e.preventDefault();\n\n            // 获取粘贴的文字\n            var pasteHtml = getPasteHtml(e);\n            var pasteText = getPasteText(e);\n            pasteText = pasteText.replace(/\\n/gm, '
      ');\n\n            var $selectionElem = editor.selection.getSelectionContainerElem();\n            if (!$selectionElem) {\n                return;\n            }\n            var nodeName = $selectionElem.getNodeName();\n\n            // code 中粘贴忽略\n            if (nodeName === 'CODE' || nodeName === 'PRE') {\n                return;\n            }\n\n            // 表格中忽略，可能会出现异常问题\n            if (nodeName === 'TD' || nodeName === 'TH') {\n                return;\n            }\n\n            if (nodeName === 'DIV' || $textElem.html() === '

      ') {\n                // 是 div，可粘贴过滤样式的文字和链接\n                if (!pasteHtml) {\n                    return;\n                }\n                try {\n                    // firefox 中，获取的 pasteHtml 可能是没有 
         包裹的 
      • \n                    // 因此执行 insertHTML 会报错\n                    editor.cmd.do('insertHTML', pasteHtml);\n                } catch (ex) {\n                    // 此时使用 pasteText 来兼容一下\n                    editor.cmd.do('insertHTML', '
        ' + pasteText + '
        ');\n                }\n            } else {\n                // 不是 div，证明在已有内容的元素中粘贴，只粘贴纯文本\n                if (!pasteText) {\n                    return;\n                }\n                editor.cmd.do('insertHTML', '
        ' + pasteText + '
        ');\n            }\n        });\n\n        // 粘贴图片\n        $textElem.on('paste', function (e) {\n            e.preventDefault();\n\n            // 获取粘贴的图片\n            var pasteFiles = getPasteImgs(e);\n            if (!pasteFiles || !pasteFiles.length) {\n                return;\n            }\n\n            // 获取当前的元素\n            var $selectionElem = editor.selection.getSelectionContainerElem();\n            if (!$selectionElem) {\n                return;\n            }\n            var nodeName = $selectionElem.getNodeName();\n\n            // code 中粘贴忽略\n            if (nodeName === 'CODE' || nodeName === 'PRE') {\n                return;\n            }\n\n            // 上传图片\n            var uploadImg = editor.uploadImg;\n            uploadImg.uploadImg(pasteFiles);\n        });\n    },\n\n    // tab 特殊处理\n    _tabHandle: function _tabHandle() {\n        var editor = this.editor;\n        var $textElem = editor.$textElem;\n\n        $textElem.on('keydown', function (e) {\n            if (e.keyCode !== 9) {\n                return;\n            }\n            if (!editor.cmd.queryCommandSupported('insertHTML')) {\n                // 必须原生支持 insertHTML 命令\n                return;\n            }\n            var $selectionElem = editor.selection.getSelectionContainerElem();\n            if (!$selectionElem) {\n                return;\n            }\n            var $parentElem = $selectionElem.parent();\n            var selectionNodeName = $selectionElem.getNodeName();\n            var parentNodeName = $parentElem.getNodeName();\n\n            if (selectionNodeName === 'CODE' && parentNodeName === 'PRE') {\n                // 
         里面\n                editor.cmd.do('insertHTML', '    ');\n            } else {\n                // 普通文字\n                editor.cmd.do('insertHTML', '    ');\n            }\n\n            e.preventDefault();\n        });\n    },\n\n    // img 点击\n    _imgHandle: function _imgHandle() {\n        var editor = this.editor;\n        var $textElem = editor.$textElem;\n        var selectedClass = 'w-e-selected';\n\n        // 为图片增加 selected 样式\n        $textElem.on('click', 'img', function (e) {\n            var img = this;\n            var $img = $(img);\n\n            // 去掉所有图片的 selected 样式\n            $textElem.find('img').removeClass(selectedClass);\n\n            // 为点击的图片增加样式，并记录当前图片\n            $img.addClass(selectedClass);\n            editor._selectedImg = $img;\n\n            // 修改选取\n            editor.selection.createRangeByElem($img);\n        });\n\n        // 去掉图片的 selected 样式\n        $textElem.on('click  keyup', function (e) {\n            if (e.target.matches('img')) {\n                // 点击的是图片，忽略\n                return;\n            }\n            // 取消掉 selected 样式，并删除记录\n            $textElem.find('img').removeClass(selectedClass);\n            editor._selectedImg = null;\n        });\n    }\n};\n\n/*\n    命令，封装 document.execCommand\n*/\n\n// 构造函数\nfunction Command(editor) {\n    this.editor = editor;\n}\n\n// 修改原型\nCommand.prototype = {\n    constructor: Command,\n\n    // 执行命令\n    do: function _do(name, value) {\n        var editor = this.editor;\n\n        // 如果无选区，忽略\n        if (!editor.selection.getRange()) {\n            return;\n        }\n\n        // 恢复选取\n        editor.selection.restoreSelection();\n\n        // 执行\n        var _name = '_' + name;\n        if (this[_name]) {\n            // 有自定义事件\n            this[_name](value);\n        } else {\n            // 默认 command\n            this._execCommand(name, value);\n        }\n\n        // 修改菜单状态\n        editor.menus.changeActive();\n\n        // 最后，恢复选取保证光标在原来的位置闪烁\n        editor.selection.saveRange();\n        editor.selection.restoreSelection();\n\n        // 触发 onchange\n        editor.change && editor.change();\n    },\n\n    // 自定义 insertHTML 事件\n    _insertHTML: function _insertHTML(html) {\n        var editor = this.editor;\n        var range = editor.selection.getRange();\n\n        // 保证传入的参数是 html 代码\n        var test = /^<.+>$/.test(html);\n        if (!test && !UA.isWebkit()) {\n            // webkit 可以插入非 html 格式的文字\n            throw new Error('执行 insertHTML 命令时传入的参数必须是 html 格式');\n        }\n\n        if (this.queryCommandSupported('insertHTML')) {\n            // W3C\n            this._execCommand('insertHTML', html);\n        } else if (range.insertNode) {\n            // IE\n            range.deleteContents();\n            range.insertNode($(html)[0]);\n        } else if (range.pasteHTML) {\n            // IE <= 10\n            range.pasteHTML(html);\n        }\n    },\n\n    // 插入 elem\n    _insertElem: function _insertElem($elem) {\n        var editor = this.editor;\n        var range = editor.selection.getRange();\n\n        if (range.insertNode) {\n            range.deleteContents();\n            range.insertNode($elem[0]);\n        }\n    },\n\n    // 封装 execCommand\n    _execCommand: function _execCommand(name, value) {\n        document.execCommand(name, false, value);\n    },\n\n    // 封装 document.queryCommandValue\n    queryCommandValue: function queryCommandValue(name) {\n        return document.queryCommandValue(name);\n    },\n\n    // 封装 document.queryCommandState\n    queryCommandState: function queryCommandState(name) {\n        return document.queryCommandState(name);\n    },\n\n    // 封装 document.queryCommandSupported\n    queryCommandSupported: function queryCommandSupported(name) {\n        return document.queryCommandSupported(name);\n    }\n};\n\n/*\n    selection range API\n*/\n\n// 构造函数\nfunction API(editor) {\n    this.editor = editor;\n    this._currentRange = null;\n}\n\n// 修改原型\nAPI.prototype = {\n    constructor: API,\n\n    // 获取 range 对象\n    getRange: function getRange() {\n        return this._currentRange;\n    },\n\n    // 保存选区\n    saveRange: function saveRange(_range) {\n        if (_range) {\n            // 保存已有选区\n            this._currentRange = _range;\n            return;\n        }\n\n        // 获取当前的选区\n        var selection = window.getSelection();\n        if (selection.rangeCount === 0) {\n            return;\n        }\n        var range = selection.getRangeAt(0);\n\n        // 判断选区内容是否在编辑内容之内\n        var $containerElem = this.getSelectionContainerElem(range);\n        if (!$containerElem) {\n            return;\n        }\n        var editor = this.editor;\n        var $textElem = editor.$textElem;\n        if ($textElem.isContain($containerElem)) {\n            // 是编辑内容之内的\n            this._currentRange = range;\n        }\n    },\n\n    // 折叠选区\n    collapseRange: function collapseRange(toStart) {\n        if (toStart == null) {\n            // 默认为 false\n            toStart = false;\n        }\n        var range = this._currentRange;\n        if (range) {\n            range.collapse(toStart);\n        }\n    },\n\n    // 选中区域的文字\n    getSelectionText: function getSelectionText() {\n        var range = this._currentRange;\n        if (range) {\n            return this._currentRange.toString();\n        } else {\n            return '';\n        }\n    },\n\n    // 选区的 $Elem\n    getSelectionContainerElem: function getSelectionContainerElem(range) {\n        range = range || this._currentRange;\n        var elem = void 0;\n        if (range) {\n            elem = range.commonAncestorContainer;\n            return $(elem.nodeType === 1 ? elem : elem.parentNode);\n        }\n    },\n    getSelectionStartElem: function getSelectionStartElem(range) {\n        range = range || this._currentRange;\n        var elem = void 0;\n        if (range) {\n            elem = range.startContainer;\n            return $(elem.nodeType === 1 ? elem : elem.parentNode);\n        }\n    },\n    getSelectionEndElem: function getSelectionEndElem(range) {\n        range = range || this._currentRange;\n        var elem = void 0;\n        if (range) {\n            elem = range.endContainer;\n            return $(elem.nodeType === 1 ? elem : elem.parentNode);\n        }\n    },\n\n    // 选区是否为空\n    isSelectionEmpty: function isSelectionEmpty() {\n        var range = this._currentRange;\n        if (range && range.startContainer) {\n            if (range.startContainer === range.endContainer) {\n                if (range.startOffset === range.endOffset) {\n                    return true;\n                }\n            }\n        }\n        return false;\n    },\n\n    // 恢复选区\n    restoreSelection: function restoreSelection() {\n        var selection = window.getSelection();\n        selection.removeAllRanges();\n        selection.addRange(this._currentRange);\n    },\n\n    // 创建一个空白（即 ​ 字符）选区\n    createEmptyRange: function createEmptyRange() {\n        var editor = this.editor;\n        var range = this.getRange();\n        var $elem = void 0;\n\n        if (!range) {\n            // 当前无 range\n            return;\n        }\n        if (!this.isSelectionEmpty()) {\n            // 当前选区必须没有内容才可以\n            return;\n        }\n\n        // 目前只支持 webkit 内核\n        if (UA.isWebkit()) {\n            // 插入 ​\n            editor.cmd.do('insertHTML', '​');\n            // 修改 offset 位置\n            range.setEnd(range.endContainer, range.endOffset + 1);\n            // 存储\n            this.saveRange(range);\n        } else {\n            $elem = $('​');\n            editor.cmd.do('insertElem', $elem);\n            this.createRangeByElem($elem, true);\n        }\n    },\n\n    // 根据 $Elem 设置选区\n    createRangeByElem: function createRangeByElem($elem, toStart, isContent) {\n        // $elem - 经过封装的 elem\n        // toStart - true 开始位置，false 结束位置\n        // isContent - 是否选中Elem的内容\n        if (!$elem.length) {\n            return;\n        }\n\n        var elem = $elem[0];\n        var range = document.createRange();\n\n        if (isContent) {\n            range.selectNodeContents(elem);\n        } else {\n            range.selectNode(elem);\n        }\n\n        if (typeof toStart === 'boolean') {\n            range.collapse(toStart);\n        }\n\n        // 存储 range\n        this.saveRange(range);\n    }\n};\n\n/*\n    上传进度条\n*/\n\nfunction Progress(editor) {\n    this.editor = editor;\n    this._time = 0;\n    this._isShow = false;\n    this._isRender = false;\n    this._timeoutId = 0;\n    this.$textContainer = editor.$textContainerElem;\n    this.$bar = $('
        ');\n}\n\nProgress.prototype = {\n    constructor: Progress,\n\n    show: function show(progress) {\n        var _this = this;\n\n        // 状态处理\n        if (this._isShow) {\n            return;\n        }\n        this._isShow = true;\n\n        // 渲染\n        var $bar = this.$bar;\n        if (!this._isRender) {\n            var $textContainer = this.$textContainer;\n            $textContainer.append($bar);\n        } else {\n            this._isRender = true;\n        }\n\n        // 改变进度（节流，100ms 渲染一次）\n        if (Date.now() - this._time > 100) {\n            if (progress <= 1) {\n                $bar.css('width', progress * 100 + '%');\n                this._time = Date.now();\n            }\n        }\n\n        // 隐藏\n        var timeoutId = this._timeoutId;\n        if (timeoutId) {\n            clearTimeout(timeoutId);\n        }\n        timeoutId = setTimeout(function () {\n            _this._hide();\n        }, 500);\n    },\n\n    _hide: function _hide() {\n        var $bar = this.$bar;\n        $bar.remove();\n\n        // 修改状态\n        this._time = 0;\n        this._isShow = false;\n        this._isRender = false;\n    }\n};\n\nvar _typeof = typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\" ? function (obj) {\n  return typeof obj;\n} : function (obj) {\n  return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj;\n};\n\n/*\n    上传图片\n*/\n\n// 构造函数\nfunction UploadImg(editor) {\n    this.editor = editor;\n}\n\n// 原型\nUploadImg.prototype = {\n    constructor: UploadImg,\n\n    // 根据 debug 弹出不同的信息\n    _alert: function _alert(alertInfo, debugInfo) {\n        var editor = this.editor;\n        var debug = editor.config.debug;\n\n        if (debug) {\n            throw new Error('wangEditor: ' + (debugInfo || alertInfo));\n        } else {\n            alert(alertInfo);\n        }\n    },\n\n    // 根据链接插入图片\n    insertLinkImg: function insertLinkImg(link) {\n        var _this2 = this;\n\n        if (!link) {\n            return;\n        }\n        var editor = this.editor;\n\n        var img = document.createElement('img');\n        img.onload = function () {\n            img = null;\n            editor.cmd.do('insertHTML', '');\n        };\n        img.onerror = function () {\n            img = null;\n            // 无法成功下载图片\n            _this2._alert('插入图片错误', 'wangEditor: \\u63D2\\u5165\\u56FE\\u7247\\u51FA\\u9519\\uFF0C\\u56FE\\u7247\\u94FE\\u63A5\\u662F \"' + link + '\"\\uFF0C\\u4E0B\\u8F7D\\u8BE5\\u94FE\\u63A5\\u5931\\u8D25');\n            return;\n        };\n        img.onabort = function () {\n            img = null;\n        };\n        img.src = link;\n    },\n\n    // 上传图片\n    uploadImg: function uploadImg(files) {\n        var _this3 = this;\n\n        if (!files || !files.length) {\n            return;\n        }\n\n        // ------------------------------ 获取配置信息 ------------------------------\n        var editor = this.editor;\n        var config = editor.config;\n        var maxSize = config.uploadImgMaxSize;\n        var maxSizeM = maxSize / 1000 / 1000;\n        var maxLength = config.uploadImgMaxLength || 10000;\n        var uploadImgServer = config.uploadImgServer;\n        var uploadImgShowBase64 = config.uploadImgShowBase64;\n        var uploadFileName = config.uploadFileName || '';\n        var uploadImgParams = config.uploadImgParams || {};\n        var uploadImgHeaders = config.uploadImgHeaders || {};\n        var hooks = config.uploadImgHooks || {};\n        var timeout = config.uploadImgTimeout || 3000;\n        var withCredentials = config.withCredentials;\n        if (withCredentials == null) {\n            withCredentials = false;\n        }\n\n        // ------------------------------ 验证文件信息 ------------------------------\n        var resultFiles = [];\n        var errInfo = [];\n        arrForEach(files, function (file) {\n            var name = file.name;\n            var size = file.size;\n            if (/\\.(jpg|jpeg|png|bmp|gif)$/i.test(name) === false) {\n                // 后缀名不合法，不是图片\n                errInfo.push('\\u3010' + name + '\\u3011\\u4E0D\\u662F\\u56FE\\u7247');\n                return;\n            }\n            if (maxSize < size) {\n                // 上传图片过大\n                errInfo.push('\\u3010' + name + '\\u3011\\u5927\\u4E8E ' + maxSizeM + 'M');\n                return;\n            }\n\n            // 验证通过的加入结果列表\n            resultFiles.push(file);\n        });\n        // 抛出验证信息\n        if (errInfo.length) {\n            this._alert('图片验证未通过: \\n' + errInfo.join('\\n'));\n            return;\n        }\n        if (resultFiles.length > maxLength) {\n            this._alert('一次最多上传' + maxLength + '张图片');\n            return;\n        }\n\n        // 添加图片数据\n        var formdata = new FormData();\n        arrForEach(resultFiles, function (file) {\n            var name = uploadFileName || file.name;\n            formdata.append(name, file);\n        });\n\n        // ------------------------------ 上传图片 ------------------------------\n        if (uploadImgServer && typeof uploadImgServer === 'string') {\n            // 添加参数\n            var uploadImgServerArr = uploadImgServer.split('#');\n            uploadImgServer = uploadImgServerArr[0];\n            var uploadImgServerHash = uploadImgServerArr[1] || '';\n            objForEach(uploadImgParams, function (key, val) {\n                val = encodeURIComponent(val);\n\n                // 第一，将参数拼接到 url 中\n                if (uploadImgServer.indexOf('?') > 0) {\n                    uploadImgServer += '&';\n                } else {\n                    uploadImgServer += '?';\n                }\n                uploadImgServer = uploadImgServer + key + '=' + val;\n\n                // 第二，将参数添加到 formdata 中\n                formdata.append(key, val);\n            });\n            if (uploadImgServerHash) {\n                uploadImgServer += '#' + uploadImgServerHash;\n            }\n\n            // 定义 xhr\n            var xhr = new XMLHttpRequest();\n            xhr.open('POST', uploadImgServer);\n\n            // 设置超时\n            xhr.timeout = timeout;\n            xhr.ontimeout = function () {\n                // hook - timeout\n                if (hooks.timeout && typeof hooks.timeout === 'function') {\n                    hooks.timeout(xhr, editor);\n                }\n\n                _this3._alert('上传图片超时');\n            };\n\n            // 监控 progress\n            if (xhr.upload) {\n                xhr.upload.onprogress = function (e) {\n                    var percent = void 0;\n                    // 进度条\n                    var progressBar = new Progress(editor);\n                    if (e.lengthComputable) {\n                        percent = e.loaded / e.total;\n                        progressBar.show(percent);\n                    }\n                };\n            }\n\n            // 返回数据\n            xhr.onreadystatechange = function () {\n                var result = void 0;\n                if (xhr.readyState === 4) {\n                    if (xhr.status < 200 || xhr.status >= 300) {\n                        // hook - error\n                        if (hooks.error && typeof hooks.error === 'function') {\n                            hooks.error(xhr, editor);\n                        }\n\n                        // xhr 返回状态错误\n                        _this3._alert('上传图片发生错误', '\\u4E0A\\u4F20\\u56FE\\u7247\\u53D1\\u751F\\u9519\\u8BEF\\uFF0C\\u670D\\u52A1\\u5668\\u8FD4\\u56DE\\u72B6\\u6001\\u662F ' + xhr.status);\n                        return;\n                    }\n\n                    result = xhr.responseText;\n                    if ((typeof result === 'undefined' ? 'undefined' : _typeof(result)) !== 'object') {\n                        try {\n                            result = JSON.parse(result);\n                        } catch (ex) {\n                            // hook - fail\n                            if (hooks.fail && typeof hooks.fail === 'function') {\n                                hooks.fail(xhr, editor, result);\n                            }\n\n                            _this3._alert('上传图片失败', '上传图片返回结果错误，返回结果是: ' + result);\n                            return;\n                        }\n                    }\n                    if (!hooks.customInsert && result.errno != '0') {\n                        // hook - fail\n                        if (hooks.fail && typeof hooks.fail === 'function') {\n                            hooks.fail(xhr, editor, result);\n                        }\n\n                        // 数据错误\n                        _this3._alert('上传图片失败', '上传图片返回结果错误，返回结果 errno=' + result.errno);\n                    } else {\n                        if (hooks.customInsert && typeof hooks.customInsert === 'function') {\n                            // 使用者自定义插入方法\n                            hooks.customInsert(_this3.insertLinkImg.bind(_this3), result, editor);\n                        } else {\n                            // 将图片插入编辑器\n                            var data = result.data || [];\n                            data.forEach(function (link) {\n                                _this3.insertLinkImg(link);\n                            });\n                        }\n\n                        // hook - success\n                        if (hooks.success && typeof hooks.success === 'function') {\n                            hooks.success(xhr, editor, result);\n                        }\n                    }\n                }\n            };\n\n            // hook - before\n            if (hooks.before && typeof hooks.before === 'function') {\n                hooks.before(xhr, editor, resultFiles);\n            }\n\n            // 自定义 headers\n            objForEach(uploadImgHeaders, function (key, val) {\n                xhr.setRequestHeader(key, val);\n            });\n\n            // 跨域传 cookie\n            xhr.withCredentials = withCredentials;\n\n            // 发送请求\n            xhr.send(formdata);\n\n            // 注意，要 return 。不去操作接下来的 base64 显示方式\n            return;\n        }\n\n        // 显示 base64 格式\n        if (uploadImgShowBase64) {\n            arrForEach(files, function (file) {\n                var _this = _this3;\n                var reader = new FileReader();\n                reader.readAsDataURL(file);\n                reader.onload = function () {\n                    _this.insertLinkImg(this.result);\n                };\n            });\n        }\n    }\n};\n\n/*\n    编辑器构造函数\n*/\n\n// id，累加\nvar editorId = 1;\n\n// 构造函数\nfunction Editor(toolbarSelector, textSelector) {\n    if (toolbarSelector == null) {\n        // 没有传入任何参数，报错\n        throw new Error('错误：初始化编辑器时候未传入任何参数，请查阅文档');\n    }\n    // id，用以区分单个页面不同的编辑器对象\n    this.id = 'wangEditor-' + editorId++;\n\n    this.toolbarSelector = toolbarSelector;\n    this.textSelector = textSelector;\n\n    // 自定义配置\n    this.customConfig = {};\n}\n\n// 修改原型\nEditor.prototype = {\n    constructor: Editor,\n\n    // 初始化配置\n    _initConfig: function _initConfig() {\n        // _config 是默认配置，this.customConfig 是用户自定义配置，将它们 merge 之后再赋值\n        var target = {};\n        this.config = Object.assign(target, config, this.customConfig);\n    },\n\n    // 初始化 DOM\n    _initDom: function _initDom() {\n        var _this = this;\n\n        var toolbarSelector = this.toolbarSelector;\n        var $toolbarSelector = $(toolbarSelector);\n        var textSelector = this.textSelector;\n\n        var config$$1 = this.config;\n        var zIndex = config$$1.zIndex || '10000';\n\n        // 定义变量\n        var $toolbarElem = void 0,\n            $textContainerElem = void 0,\n            $textElem = void 0,\n            $children = void 0;\n\n        if (textSelector == null) {\n            // 只传入一个参数，即是容器的选择器或元素，toolbar 和 text 的元素自行创建\n            $toolbarElem = $('
        ');\n            $textContainerElem = $('
        ');\n\n            // 将编辑器区域原有的内容，暂存起来\n            $children = $toolbarSelector.children();\n\n            // 添加到 DOM 结构中\n            $toolbarSelector.append($toolbarElem).append($textContainerElem);\n\n            // 自行创建的，需要配置默认的样式\n            $toolbarElem.css('background-color', '#f1f1f1').css('border', '1px solid #ccc');\n            $textContainerElem.css('border', '1px solid #ccc').css('border-top', 'none').css('height', '300px');\n        } else {\n            // toolbar 和 text 的选择器都有值，记录属性\n            $toolbarElem = $toolbarSelector;\n            $textContainerElem = $(textSelector);\n            // 将编辑器区域原有的内容，暂存起来\n            $children = $textContainerElem.children();\n        }\n\n        // 编辑区域\n        $textElem = $('
        ');\n        $textElem.attr('contenteditable', 'true').css('width', '100%').css('height', '100%');\n\n        // 初始化编辑区域内容\n        if ($children && $children.length) {\n            $textElem.append($children);\n        } else {\n            $textElem.append($('

        '));\n        }\n\n        // 编辑区域加入DOM\n        $textContainerElem.append($textElem);\n\n        // 设置通用的 class\n        $toolbarElem.addClass('w-e-toolbar');\n        $textContainerElem.addClass('w-e-text-container');\n        $textContainerElem.css('z-index', zIndex);\n        $textElem.addClass('w-e-text');\n\n        // 记录属性\n        this.$toolbarElem = $toolbarElem;\n        this.$textContainerElem = $textContainerElem;\n        this.$textElem = $textElem;\n\n        // 绑定 onchange\n        $textContainerElem.on('click keyup', function () {\n            _this.change && _this.change();\n        });\n        $toolbarElem.on('click', function () {\n            this.change && this.change();\n        });\n    },\n\n    // 封装 command\n    _initCommand: function _initCommand() {\n        this.cmd = new Command(this);\n    },\n\n    // 封装 selection range API\n    _initSelectionAPI: function _initSelectionAPI() {\n        this.selection = new API(this);\n    },\n\n    // 添加图片上传\n    _initUploadImg: function _initUploadImg() {\n        this.uploadImg = new UploadImg(this);\n    },\n\n    // 初始化菜单\n    _initMenus: function _initMenus() {\n        this.menus = new Menus(this);\n        this.menus.init();\n    },\n\n    // 添加 text 区域\n    _initText: function _initText() {\n        this.txt = new Text(this);\n        this.txt.init();\n    },\n\n    // 初始化选区，将光标定位到内容尾部\n    initSelection: function initSelection() {\n        var $textElem = this.$textElem;\n        var $children = $textElem.children();\n        if (!$children.length) {\n            // 如果编辑器区域无内容，添加一个空行，重新设置选区\n            $textElem.append($('

        '));\n            this.initSelection();\n            return;\n        }\n\n        var $last = $children.last();\n        var html = $last.html().toLowerCase();\n        var nodeName = $last.getNodeName();\n        if (html !== '
        ' && html !== '' || nodeName !== 'P') {\n            // 最后一个元素不是 

        ，添加一个空行，重新设置选区\n            $textElem.append($('

        '));\n            this.initSelection();\n            return;\n        }\n\n        this.selection.createRangeByElem($last, true);\n        this.selection.restoreSelection();\n    },\n\n    // 绑定事件\n    _bindEvent: function _bindEvent() {\n        // -------- 绑定 onchange 事件 --------\n        var onChangeTimeoutId = 0;\n        var beforeChangeHtml = this.txt.html();\n        var config$$1 = this.config;\n        var onchange = config$$1.onchange;\n        if (onchange && typeof onchange === 'function') {\n            // 触发 change 的有三个场景：\n            // 1. $textContainerElem.on('click keyup')\n            // 2. $toolbarElem.on('click')\n            // 3. editor.cmd.do()\n            this.change = function () {\n                // 判断是否有变化\n                var currentHtml = this.txt.html();\n                if (currentHtml.length === beforeChangeHtml.length) {\n                    return;\n                }\n\n                // 执行，使用节流\n                if (onChangeTimeoutId) {\n                    clearTimeout(onChangeTimeoutId);\n                }\n                onChangeTimeoutId = setTimeout(function () {\n                    // 触发配置的 onchange 函数\n                    onchange(currentHtml);\n                    beforeChangeHtml = currentHtml;\n                }, 200);\n            };\n        }\n    },\n\n    // 创建编辑器\n    create: function create() {\n        // 初始化配置信息\n        this._initConfig();\n\n        // 初始化 DOM\n        this._initDom();\n\n        // 封装 command API\n        this._initCommand();\n\n        // 封装 selection range API\n        this._initSelectionAPI();\n\n        // 添加 text\n        this._initText();\n\n        // 初始化菜单\n        this._initMenus();\n\n        // 添加 图片上传\n        this._initUploadImg();\n\n        // 初始化选区，将光标定位到内容尾部\n        this.initSelection();\n\n        // 绑定事件\n        this._bindEvent();\n    }\n};\n\n// 检验是否浏览器环境\ntry {\n    document;\n} catch (ex) {\n    throw new Error('请在浏览器环境下运行');\n}\n\n// polyfill\npolyfill();\n\n// 这里的 `inlinecss` 将被替换成 css 代码的内容，详情可去 ./gulpfile.js 中搜索 `inlinecss` 关键字\nvar inlinecss = '.w-e-toolbar,.w-e-text-container,.w-e-menu-panel {  padding: 0;  margin: 0;  box-sizing: border-box;}.w-e-toolbar *,.w-e-text-container *,.w-e-menu-panel * {  padding: 0;  margin: 0;  box-sizing: border-box;}.w-e-clear-fix:after {  content: \"\";  display: table;  clear: both;}.w-e-toolbar .w-e-droplist {  position: absolute;  left: 0;  top: 0;  background-color: #fff;  border: 1px solid #f1f1f1;  border-right-color: #ccc;  border-bottom-color: #ccc;}.w-e-toolbar .w-e-droplist .w-e-dp-title {  text-align: center;  color: #999;  line-height: 2;  border-bottom: 1px solid #f1f1f1;  font-size: 13px;}.w-e-toolbar .w-e-droplist ul.w-e-list {  list-style: none;  line-height: 1;}.w-e-toolbar .w-e-droplist ul.w-e-list li.w-e-item {  color: #333;  padding: 5px 0;}.w-e-toolbar .w-e-droplist ul.w-e-list li.w-e-item:hover {  background-color: #f1f1f1;}.w-e-toolbar .w-e-droplist ul.w-e-block {  list-style: none;  text-align: left;  padding: 5px;}.w-e-toolbar .w-e-droplist ul.w-e-block li.w-e-item {  display: inline-block;  *display: inline;  *zoom: 1;  padding: 3px 5px;}.w-e-toolbar .w-e-droplist ul.w-e-block li.w-e-item:hover {  background-color: #f1f1f1;}@font-face {  font-family: \\'icomoon\\';  src: 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format(\\'truetype\\');  font-weight: normal;  font-style: normal;}[class^=\"w-e-icon-\"],[class*=\" w-e-icon-\"] {  /* use !important to prevent issues with browser extensions that change fonts */  font-family: \\'icomoon\\' !important;  speak: none;  font-style: normal;  font-weight: normal;  font-variant: normal;  text-transform: none;  line-height: 1;  /* Better Font Rendering =========== */  -webkit-font-smoothing: antialiased;  -moz-osx-font-smoothing: grayscale;}.w-e-icon-close:before {  content: \"\\\\f00d\";}.w-e-icon-upload2:before {  content: \"\\\\e9c6\";}.w-e-icon-trash-o:before {  content: \"\\\\f014\";}.w-e-icon-header:before {  content: \"\\\\f1dc\";}.w-e-icon-pencil2:before {  content: \"\\\\e906\";}.w-e-icon-paint-brush:before {  content: \"\\\\f1fc\";}.w-e-icon-image:before {  content: \"\\\\e90d\";}.w-e-icon-play:before {  content: \"\\\\e912\";}.w-e-icon-location:before {  content: \"\\\\e947\";}.w-e-icon-undo:before {  content: \"\\\\e965\";}.w-e-icon-redo:before {  content: \"\\\\e966\";}.w-e-icon-quotes-left:before {  content: \"\\\\e977\";}.w-e-icon-list-numbered:before {  content: \"\\\\e9b9\";}.w-e-icon-list2:before {  content: \"\\\\e9bb\";}.w-e-icon-link:before {  content: \"\\\\e9cb\";}.w-e-icon-happy:before {  content: \"\\\\e9df\";}.w-e-icon-bold:before {  content: \"\\\\ea62\";}.w-e-icon-underline:before {  content: \"\\\\ea63\";}.w-e-icon-italic:before {  content: \"\\\\ea64\";}.w-e-icon-strikethrough:before {  content: \"\\\\ea65\";}.w-e-icon-table2:before {  content: \"\\\\ea71\";}.w-e-icon-paragraph-left:before {  content: \"\\\\ea77\";}.w-e-icon-paragraph-center:before {  content: \"\\\\ea78\";}.w-e-icon-paragraph-right:before {  content: \"\\\\ea79\";}.w-e-icon-terminal:before {  content: \"\\\\f120\";}.w-e-icon-page-break:before {  content: \"\\\\ea68\";}.w-e-icon-cancel-circle:before {  content: \"\\\\ea0d\";}.w-e-toolbar {  display: -webkit-box;  display: -ms-flexbox;  display: flex;  padding: 0 5px;  /* 单个菜单 */}.w-e-toolbar .w-e-menu {  position: relative;  z-index: 10001;  text-align: center;  padding: 5px 10px;  cursor: pointer;}.w-e-toolbar .w-e-menu i {  color: #999;}.w-e-toolbar .w-e-menu:hover i {  color: #333;}.w-e-toolbar .w-e-active i {  color: #1e88e5;}.w-e-toolbar .w-e-active:hover i {  color: #1e88e5;}.w-e-text-container .w-e-panel-container {  position: absolute;  top: 0;  left: 50%;  border: 1px solid #ccc;  border-top: 0;  box-shadow: 1px 1px 2px #ccc;  color: #333;  background-color: #fff;  /* 为 emotion panel 定制的样式 */  /* 上传图片的 panel 定制样式 */}.w-e-text-container .w-e-panel-container .w-e-panel-close {  position: absolute;  right: 0;  top: 0;  padding: 5px;  margin: 2px 5px 0 0;  cursor: pointer;  color: #999;}.w-e-text-container .w-e-panel-container .w-e-panel-close:hover {  color: #333;}.w-e-text-container .w-e-panel-container .w-e-panel-tab-title {  list-style: none;  display: -webkit-box;  display: -ms-flexbox;  display: flex;  font-size: 14px;  margin: 2px 10px 0 10px;  border-bottom: 1px solid #f1f1f1;}.w-e-text-container .w-e-panel-container .w-e-panel-tab-title .w-e-item {  padding: 3px 5px;  color: #999;  cursor: pointer;  margin: 0 3px;  position: relative;  top: 1px;}.w-e-text-container .w-e-panel-container .w-e-panel-tab-title .w-e-active {  color: #333;  border-bottom: 1px solid #333;  cursor: default;  font-weight: 700;}.w-e-text-container .w-e-panel-container .w-e-panel-tab-content {  padding: 10px 15px 10px 15px;  font-size: 16px;  /* 输入框的样式 */  /* 按钮的样式 */}.w-e-text-container .w-e-panel-container .w-e-panel-tab-content input:focus,.w-e-text-container .w-e-panel-container .w-e-panel-tab-content textarea:focus,.w-e-text-container .w-e-panel-container .w-e-panel-tab-content button:focus {  outline: none;}.w-e-text-container .w-e-panel-container .w-e-panel-tab-content textarea {  width: 100%;  border: 1px solid #ccc;  padding: 5px;}.w-e-text-container .w-e-panel-container .w-e-panel-tab-content textarea:focus {  border-color: #1e88e5;}.w-e-text-container .w-e-panel-container .w-e-panel-tab-content input[type=text] {  border: none;  border-bottom: 1px solid #ccc;  font-size: 14px;  height: 20px;  color: #333;  text-align: left;}.w-e-text-container .w-e-panel-container .w-e-panel-tab-content input[type=text].small {  width: 30px;  text-align: center;}.w-e-text-container .w-e-panel-container .w-e-panel-tab-content input[type=text].block {  display: block;  width: 100%;  margin: 10px 0;}.w-e-text-container .w-e-panel-container .w-e-panel-tab-content input[type=text]:focus {  border-bottom: 2px solid #1e88e5;}.w-e-text-container .w-e-panel-container .w-e-panel-tab-content .w-e-button-container button {  font-size: 14px;  color: #1e88e5;  border: none;  padding: 5px 10px;  background-color: #fff;  cursor: pointer;  border-radius: 3px;}.w-e-text-container .w-e-panel-container .w-e-panel-tab-content .w-e-button-container button.left {  float: left;  margin-right: 10px;}.w-e-text-container .w-e-panel-container .w-e-panel-tab-content .w-e-button-container button.right {  float: right;  margin-left: 10px;}.w-e-text-container .w-e-panel-container .w-e-panel-tab-content .w-e-button-container button.gray {  color: #999;}.w-e-text-container .w-e-panel-container .w-e-panel-tab-content .w-e-button-container button.red {  color: #c24f4a;}.w-e-text-container .w-e-panel-container .w-e-panel-tab-content .w-e-button-container button:hover {  background-color: #f1f1f1;}.w-e-text-container .w-e-panel-container .w-e-panel-tab-content .w-e-button-container:after {  content: \"\";  display: table;  clear: both;}.w-e-text-container .w-e-panel-container .w-e-emoticon-container .w-e-item {  cursor: pointer;  font-size: 18px;  padding: 0 3px;  display: inline-block;  *display: inline;  *zoom: 1;}.w-e-text-container .w-e-panel-container .w-e-up-img-container {  text-align: center;}.w-e-text-container .w-e-panel-container .w-e-up-img-container .w-e-up-btn {  display: inline-block;  *display: inline;  *zoom: 1;  color: #999;  cursor: pointer;  font-size: 60px;  line-height: 1;}.w-e-text-container .w-e-panel-container .w-e-up-img-container .w-e-up-btn:hover {  color: #333;}.w-e-text-container {  position: relative;}.w-e-text-container .w-e-progress {  position: absolute;  background-color: #1e88e5;  bottom: 0;  left: 0;  height: 1px;}.w-e-text {  padding: 0 10px;  overflow-y: scroll;}.w-e-text p,.w-e-text h1,.w-e-text h2,.w-e-text h3,.w-e-text h4,.w-e-text h5,.w-e-text table,.w-e-text pre {  margin: 10px 0;  line-height: 1.5;}.w-e-text ul,.w-e-text ol {  margin: 10px 0 10px 20px;}.w-e-text blockquote {  display: block;  border-left: 8px solid #d0e5f2;  padding: 5px 10px;  margin: 10px 0;  line-height: 1.4;  font-size: 100%;  background-color: #f1f1f1;}.w-e-text code {  display: inline-block;  *display: inline;  *zoom: 1;  background-color: #f1f1f1;  border-radius: 3px;  padding: 3px 5px;  margin: 0 3px;}.w-e-text pre code {  display: block;}.w-e-text table {  border-top: 1px solid #ccc;  border-left: 1px solid #ccc;}.w-e-text table td,.w-e-text table th {  border-bottom: 1px solid #ccc;  border-right: 1px solid #ccc;  padding: 3px 5px;}.w-e-text table th {  border-bottom: 2px solid #ccc;  text-align: center;}.w-e-text:focus {  outline: none;}.w-e-text img {  cursor: pointer;}.w-e-text img:hover {  box-shadow: 0 0 5px #333;}.w-e-text img.w-e-selected {  border: 2px solid #1e88e5;}.w-e-text img.w-e-selected:hover {  box-shadow: none;}';\n\n// 将 css 代码添加到