/** * Super simple wysiwyg editor v0.8.1 * http://summernote.org/ * * summernote.js * Copyright 2013-2015 Alan Hong. and other contributors * summernote may be freely distributed under the MIT license./ * * Date: 2016-02-15T18:35Z */(function (factory) {  /* global define */  if (typeof define === 'function' && define.amd) {    // AMD. Register as an anonymous module.    define(['jquery'], factory);  } else if (typeof module === 'object' && module.exports) {    // Node/CommonJS    module.exports = factory(require('jquery'));  } else {    // Browser globals    factory(window.jQuery);  }}(function ($) {  'use strict';  /**   * @class core.func   *   * func utils (for high-order func's arg)   *   * @singleton   * @alternateClassName func   */  var func = (function () {    var eq = function (itemA) {      return function (itemB) {        return itemA === itemB;      };    };    var eq2 = function (itemA, itemB) {      return itemA === itemB;    };    var peq2 = function (propName) {      return function (itemA, itemB) {        return itemA[propName] === itemB[propName];      };    };    var ok = function () {      return true;    };    var fail = function () {      return false;    };    var not = function (f) {      return function () {        return !f.apply(f, arguments);      };    };    var and = function (fA, fB) {      return function (item) {        return fA(item) && fB(item);      };    };    var self = function (a) {      return a;    };    var invoke = function (obj, method) {      return function () {        return obj[method].apply(obj, arguments);      };    };    var idCounter = 0;    /**     * generate a globally-unique id     *     * @param {String} [prefix]     */    var uniqueId = function (prefix) {      var id = ++idCounter + '';      return prefix ? prefix + id : id;    };    /**     * returns bnd (bounds) from rect     *     * - IE Compatibility Issue: http://goo.gl/sRLOAo     * - Scroll Issue: http://goo.gl/sNjUc     *     * @param {Rect} rect     * @return {Object} bounds     * @return {Number} bounds.top     * @return {Number} bounds.left     * @return {Number} bounds.width     * @return {Number} bounds.height     */    var rect2bnd = function (rect) {      var $document = $(document);      return {        top: rect.top + $document.scrollTop(),        left: rect.left + $document.scrollLeft(),        width: rect.right - rect.left,        height: rect.bottom - rect.top      };    };    /**     * returns a copy of the object where the keys have become the values and the values the keys.     * @param {Object} obj     * @return {Object}     */    var invertObject = function (obj) {      var inverted = {};      for (var key in obj) {        if (obj.hasOwnProperty(key)) {          inverted[obj[key]] = key;        }      }      return inverted;    };    /**     * @param {String} namespace     * @param {String} [prefix]     * @return {String}     */    var namespaceToCamel = function (namespace, prefix) {      prefix = prefix || '';      return prefix + namespace.split('.').map(function (name) {        return name.substring(0, 1).toUpperCase() + name.substring(1);      }).join('');    };    return {      eq: eq,      eq2: eq2,      peq2: peq2,      ok: ok,      fail: fail,      self: self,      not: not,      and: and,      invoke: invoke,      uniqueId: uniqueId,      rect2bnd: rect2bnd,      invertObject: invertObject,      namespaceToCamel: namespaceToCamel    };  })();  /**   * @class core.list   *   * list utils   *   * @singleton   * @alternateClassName list   */  var list = (function () {    /**     * returns the first item of an array.     *     * @param {Array} array     */    var head = function (array) {      return array[0];    };    /**     * returns the last item of an array.     *     * @param {Array} array     */    var last = function (array) {      return array[array.length - 1];    };    /**     * returns everything but the last entry of the array.     *     * @param {Array} array     */    var initial = function (array) {      return array.slice(0, array.length - 1);    };    /**     * returns the rest of the items in an array.     *     * @param {Array} array     */    var tail = function (array) {      return array.slice(1);    };    /**     * returns item of array     */    var find = function (array, pred) {      for (var idx = 0, len = array.length; idx < len; idx ++) {        var item = array[idx];        if (pred(item)) {          return item;        }      }    };    /**     * returns true if all of the values in the array pass the predicate truth test.     */    var all = function (array, pred) {      for (var idx = 0, len = array.length; idx < len; idx ++) {        if (!pred(array[idx])) {          return false;        }      }      return true;    };    /**     * returns index of item     */    var indexOf = function (array, item) {      return $.inArray(item, array);    };    /**     * returns true if the value is present in the list.     */    var contains = function (array, item) {      return indexOf(array, item) !== -1;    };    /**     * get sum from a list     *     * @param {Array} array - array     * @param {Function} fn - iterator     */    var sum = function (array, fn) {      fn = fn || func.self;      return array.reduce(function (memo, v) {        return memo + fn(v);      }, 0);    };      /**     * returns a copy of the collection with array type.     * @param {Collection} collection - collection eg) node.childNodes, ...     */    var from = function (collection) {      var result = [], idx = -1, length = collection.length;      while (++idx < length) {        result[idx] = collection[idx];      }      return result;    };    /**     * returns whether list is empty or not     */    var isEmpty = function (array) {      return !array || !array.length;    };      /**     * cluster elements by predicate function.     *     * @param {Array} array - array     * @param {Function} fn - predicate function for cluster rule     * @param {Array[]}     */    var clusterBy = function (array, fn) {      if (!array.length) { return []; }      var aTail = tail(array);      return aTail.reduce(function (memo, v) {        var aLast = last(memo);        if (fn(last(aLast), v)) {          aLast[aLast.length] = v;        } else {          memo[memo.length] = [v];        }        return memo;      }, [[head(array)]]);    };      /**     * returns a copy of the array with all falsy values removed     *     * @param {Array} array - array     * @param {Function} fn - predicate function for cluster rule     */    var compact = function (array) {      var aResult = [];      for (var idx = 0, len = array.length; idx < len; idx ++) {        if (array[idx]) { aResult.push(array[idx]); }      }      return aResult;    };    /**     * produces a duplicate-free version of the array     *     * @param {Array} array     */    var unique = function (array) {      var results = [];      for (var idx = 0, len = array.length; idx < len; idx ++) {        if (!contains(results, array[idx])) {          results.push(array[idx]);        }      }      return results;    };    /**     * returns next item.     * @param {Array} array     */    var next = function (array, item) {      var idx = indexOf(array, item);      if (idx === -1) { return null; }      return array[idx + 1];    };    /**     * returns prev item.     * @param {Array} array     */    var prev = function (array, item) {      var idx = indexOf(array, item);      if (idx === -1) { return null; }      return array[idx - 1];    };    return { head: head, last: last, initial: initial, tail: tail,             prev: prev, next: next, find: find, contains: contains,             all: all, sum: sum, from: from, isEmpty: isEmpty,             clusterBy: clusterBy, compact: compact, unique: unique };  })();  var isSupportAmd = typeof define === 'function' && define.amd;  /**   * returns whether font is installed or not.   *   * @param {String} fontName   * @return {Boolean}   */  var isFontInstalled = function (fontName) {    var testFontName = fontName === 'Comic Sans MS' ? 'Courier New' : 'Comic Sans MS';    var $tester = $('<div>').css({      position: 'absolute',      left: '-9999px',      top: '-9999px',      fontSize: '200px'    }).text('mmmmmmmmmwwwwwww').appendTo(document.body);    var originalWidth = $tester.css('fontFamily', testFontName).width();    var width = $tester.css('fontFamily', fontName + ',' + testFontName).width();    $tester.remove();    return originalWidth !== width;  };  var userAgent = navigator.userAgent;  var isMSIE = /MSIE|Trident/i.test(userAgent);  var browserVersion;  if (isMSIE) {    var matches = /MSIE (\d+[.]\d+)/.exec(userAgent);    if (matches) {      browserVersion = parseFloat(matches[1]);    }    matches = /Trident\/.*rv:([0-9]{1,}[\.0-9]{0,})/.exec(userAgent);    if (matches) {      browserVersion = parseFloat(matches[1]);    }  }  var isEdge = /Edge\/\d+/.test(userAgent);  var hasCodeMirror = !!window.CodeMirror;  if (!hasCodeMirror && isSupportAmd && require) {    if (require.hasOwnProperty('resolve')) {      try {        // If CodeMirror can't be resolved, `require.resolve` will throw an        // exception and `hasCodeMirror` won't be set to `true`.        require.resolve('codemirror');        hasCodeMirror = true;      } catch (e) {        hasCodeMirror = false;      }    } else if (require.hasOwnProperty('specified')) {      hasCodeMirror = require.specified('codemirror');    }  }  /**   * @class core.agent   *   * Object which check platform and agent   *   * @singleton   * @alternateClassName agent   */  var agent = {    isMac: navigator.appVersion.indexOf('Mac') > -1,    isMSIE: isMSIE,    isEdge: isEdge,    isFF: !isEdge && /firefox/i.test(userAgent),    isPhantom: /PhantomJS/i.test(userAgent),    isWebkit: !isEdge && /webkit/i.test(userAgent),    isChrome: !isEdge && /chrome/i.test(userAgent),    isSafari: !isEdge && /safari/i.test(userAgent),    browserVersion: browserVersion,    jqueryVersion: parseFloat($.fn.jquery),    isSupportAmd: isSupportAmd,    hasCodeMirror: hasCodeMirror,    isFontInstalled: isFontInstalled,    isW3CRangeSupport: !!document.createRange  };  var NBSP_CHAR = String.fromCharCode(160);  var ZERO_WIDTH_NBSP_CHAR = '\ufeff';  /**   * @class core.dom   *   * Dom functions   *   * @singleton   * @alternateClassName dom   */  var dom = (function () {    /**     * @method isEditable     *     * returns whether node is `note-editable` or not.     *     * @param {Node} node     * @return {Boolean}     */    var isEditable = function (node) {      return node && $(node).hasClass('note-editable');    };    /**     * @method isControlSizing     *     * returns whether node is `note-control-sizing` or not.     *     * @param {Node} node     * @return {Boolean}     */    var isControlSizing = function (node) {      return node && $(node).hasClass('note-control-sizing');    };    /**     * @method makePredByNodeName     *     * returns predicate which judge whether nodeName is same     *     * @param {String} nodeName     * @return {Function}     */    var makePredByNodeName = function (nodeName) {      nodeName = nodeName.toUpperCase();      return function (node) {        return node && node.nodeName.toUpperCase() === nodeName;      };    };    /**     * @method isText     *     *     *     * @param {Node} node     * @return {Boolean} true if node's type is text(3)     */    var isText = function (node) {      return node && node.nodeType === 3;    };    /**     * @method isElement     *     *     *     * @param {Node} node     * @return {Boolean} true if node's type is element(1)     */    var isElement = function (node) {      return node && node.nodeType === 1;    };    /**     * ex) br, col, embed, hr, img, input, ...     * @see http://www.w3.org/html/wg/drafts/html/master/syntax.html#void-elements     */    var isVoid = function (node) {      return node && /^BR|^IMG|^HR|^IFRAME|^BUTTON/.test(node.nodeName.toUpperCase());    };    var isPara = function (node) {      if (isEditable(node)) {        return false;      }      // Chrome(v31.0), FF(v25.0.1) use DIV for paragraph      return node && /^DIV|^P|^LI|^H[1-7]/.test(node.nodeName.toUpperCase());    };    var isHeading = function (node) {      return node && /^H[1-7]/.test(node.nodeName.toUpperCase());    };    var isPre = makePredByNodeName('PRE');    var isLi = makePredByNodeName('LI');    var isPurePara = function (node) {      return isPara(node) && !isLi(node);    };    var isTable = makePredByNodeName('TABLE');    var isInline = function (node) {      return !isBodyContainer(node) &&             !isList(node) &&             !isHr(node) &&             !isPara(node) &&             !isTable(node) &&             !isBlockquote(node);    };    var isList = function (node) {      return node && /^UL|^OL/.test(node.nodeName.toUpperCase());    };    var isHr = makePredByNodeName('HR');    var isCell = function (node) {      return node && /^TD|^TH/.test(node.nodeName.toUpperCase());    };    var isBlockquote = makePredByNodeName('BLOCKQUOTE');    var isBodyContainer = function (node) {      return isCell(node) || isBlockquote(node) || isEditable(node);    };    var isAnchor = makePredByNodeName('A');    var isParaInline = function (node) {      return isInline(node) && !!ancestor(node, isPara);    };    var isBodyInline = function (node) {      return isInline(node) && !ancestor(node, isPara);    };    var isBody = makePredByNodeName('BODY');    /**     * returns whether nodeB is closest sibling of nodeA     *     * @param {Node} nodeA     * @param {Node} nodeB     * @return {Boolean}     */    var isClosestSibling = function (nodeA, nodeB) {      return nodeA.nextSibling === nodeB ||             nodeA.previousSibling === nodeB;    };    /**     * returns array of closest siblings with node     *     * @param {Node} node     * @param {function} [pred] - predicate function     * @return {Node[]}     */    var withClosestSiblings = function (node, pred) {      pred = pred || func.ok;      var siblings = [];      if (node.previousSibling && pred(node.previousSibling)) {        siblings.push(node.previousSibling);      }      siblings.push(node);      if (node.nextSibling && pred(node.nextSibling)) {        siblings.push(node.nextSibling);      }      return siblings;    };    /**     * blank HTML for cursor position     * - [workaround] old IE only works with &nbsp;     * - [workaround] IE11 and other browser works with bogus br     */    var blankHTML = agent.isMSIE && agent.browserVersion < 11 ? '&nbsp;' : '<br>';    /**     * @method nodeLength     *     * returns #text's text size or element's childNodes size     *     * @param {Node} node     */    var nodeLength = function (node) {      if (isText(node)) {        return node.nodeValue.length;      }      return node.childNodes.length;    };    /**     * returns whether node is empty or not.     *     * @param {Node} node     * @return {Boolean}     */    var isEmpty = function (node) {      var len = nodeLength(node);      if (len === 0) {        return true;      } else if (!isText(node) && len === 1 && node.innerHTML === blankHTML) {        // ex) <p><br></p>, <span><br></span>        return true;      } else if (list.all(node.childNodes, isText) && node.innerHTML === '') {        // ex) <p></p>, <span></span>        return true;      }      return false;    };    /**     * padding blankHTML if node is empty (for cursor position)     */    var paddingBlankHTML = function (node) {      if (!isVoid(node) && !nodeLength(node)) {        node.innerHTML = blankHTML;      }    };    /**     * find nearest ancestor predicate hit     *     * @param {Node} node     * @param {Function} pred - predicate function     */    var ancestor = function (node, pred) {      while (node) {        if (pred(node)) { return node; }        if (isEditable(node)) { break; }        node = node.parentNode;      }      return null;    };    /**     * find nearest ancestor only single child blood line and predicate hit     *     * @param {Node} node     * @param {Function} pred - predicate function     */    var singleChildAncestor = function (node, pred) {      node = node.parentNode;      while (node) {        if (nodeLength(node) !== 1) { break; }        if (pred(node)) { return node; }        if (isEditable(node)) { break; }        node = node.parentNode;      }      return null;    };    /**     * returns new array of ancestor nodes (until predicate hit).     *     * @param {Node} node     * @param {Function} [optional] pred - predicate function     */    var listAncestor = function (node, pred) {      pred = pred || func.fail;      var ancestors = [];      ancestor(node, function (el) {        if (!isEditable(el)) {          ancestors.push(el);        }        return pred(el);      });      return ancestors;    };    /**     * find farthest ancestor predicate hit     */    var lastAncestor = function (node, pred) {      var ancestors = listAncestor(node);      return list.last(ancestors.filter(pred));    };    /**     * returns common ancestor node between two nodes.     *     * @param {Node} nodeA     * @param {Node} nodeB     */    var commonAncestor = function (nodeA, nodeB) {      var ancestors = listAncestor(nodeA);      for (var n = nodeB; n; n = n.parentNode) {        if ($.inArray(n, ancestors) > -1) { return n; }      }      return null; // difference document area    };    /**     * listing all previous siblings (until predicate hit).     *     * @param {Node} node     * @param {Function} [optional] pred - predicate function     */    var listPrev = function (node, pred) {      pred = pred || func.fail;      var nodes = [];      while (node) {        if (pred(node)) { break; }        nodes.push(node);        node = node.previousSibling;      }      return nodes;    };    /**     * listing next siblings (until predicate hit).     *     * @param {Node} node     * @param {Function} [pred] - predicate function     */    var listNext = function (node, pred) {      pred = pred || func.fail;      var nodes = [];      while (node) {        if (pred(node)) { break; }        nodes.push(node);        node = node.nextSibling;      }      return nodes;    };    /**     * listing descendant nodes     *     * @param {Node} node     * @param {Function} [pred] - predicate function     */    var listDescendant = function (node, pred) {      var descendants = [];      pred = pred || func.ok;      // start DFS(depth first search) with node      (function fnWalk(current) {        if (node !== current && pred(current)) {          descendants.push(current);        }        for (var idx = 0, len = current.childNodes.length; idx < len; idx++) {          fnWalk(current.childNodes[idx]);        }      })(node);      return descendants;    };    /**     * wrap node with new tag.     *     * @param {Node} node     * @param {Node} tagName of wrapper     * @return {Node} - wrapper     */    var wrap = function (node, wrapperName) {      var parent = node.parentNode;      var wrapper = $('<' + wrapperName + '>')[0];      parent.insertBefore(wrapper, node);      wrapper.appendChild(node);      return wrapper;    };    /**     * insert node after preceding     *     * @param {Node} node     * @param {Node} preceding - predicate function     */    var insertAfter = function (node, preceding) {      var next = preceding.nextSibling, parent = preceding.parentNode;      if (next) {        parent.insertBefore(node, next);      } else {        parent.appendChild(node);      }      return node;    };    /**     * append elements.     *     * @param {Node} node     * @param {Collection} aChild     */    var appendChildNodes = function (node, aChild) {      $.each(aChild, function (idx, child) {        node.appendChild(child);      });      return node;    };    /**     * returns whether boundaryPoint is left edge or not.     *     * @param {BoundaryPoint} point     * @return {Boolean}     */    var isLeftEdgePoint = function (point) {      return point.offset === 0;    };    /**     * returns whether boundaryPoint is right edge or not.     *     * @param {BoundaryPoint} point     * @return {Boolean}     */    var isRightEdgePoint = function (point) {      return point.offset === nodeLength(point.node);    };    /**     * returns whether boundaryPoint is edge or not.     *     * @param {BoundaryPoint} point     * @return {Boolean}     */    var isEdgePoint = function (point) {      return isLeftEdgePoint(point) || isRightEdgePoint(point);    };    /**     * returns whether node is left edge of ancestor or not.     *     * @param {Node} node     * @param {Node} ancestor     * @return {Boolean}     */    var isLeftEdgeOf = function (node, ancestor) {      while (node && node !== ancestor) {        if (position(node) !== 0) {          return false;        }        node = node.parentNode;      }      return true;    };    /**     * returns whether node is right edge of ancestor or not.     *     * @param {Node} node     * @param {Node} ancestor     * @return {Boolean}     */    var isRightEdgeOf = function (node, ancestor) {      while (node && node !== ancestor) {        if (position(node) !== nodeLength(node.parentNode) - 1) {          return false;        }        node = node.parentNode;      }      return true;    };    /**     * returns whether point is left edge of ancestor or not.     * @param {BoundaryPoint} point     * @param {Node} ancestor     * @return {Boolean}     */    var isLeftEdgePointOf = function (point, ancestor) {      return isLeftEdgePoint(point) && isLeftEdgeOf(point.node, ancestor);    };    /**     * returns whether point is right edge of ancestor or not.     * @param {BoundaryPoint} point     * @param {Node} ancestor     * @return {Boolean}     */    var isRightEdgePointOf = function (point, ancestor) {      return isRightEdgePoint(point) && isRightEdgeOf(point.node, ancestor);    };    /**     * returns offset from parent.     *     * @param {Node} node     */    var position = function (node) {      var offset = 0;      while ((node = node.previousSibling)) {        offset += 1;      }      return offset;    };    var hasChildren = function (node) {      return !!(node && node.childNodes && node.childNodes.length);    };    /**     * returns previous boundaryPoint     *     * @param {BoundaryPoint} point     * @param {Boolean} isSkipInnerOffset     * @return {BoundaryPoint}     */    var prevPoint = function (point, isSkipInnerOffset) {      var node, offset;      if (point.offset === 0) {        if (isEditable(point.node)) {          return null;        }        node = point.node.parentNode;        offset = position(point.node);      } else if (hasChildren(point.node)) {        node = point.node.childNodes[point.offset - 1];        offset = nodeLength(node);      } else {        node = point.node;        offset = isSkipInnerOffset ? 0 : point.offset - 1;      }      return {        node: node,        offset: offset      };    };    /**     * returns next boundaryPoint     *     * @param {BoundaryPoint} point     * @param {Boolean} isSkipInnerOffset     * @return {BoundaryPoint}     */    var nextPoint = function (point, isSkipInnerOffset) {      var node, offset;      if (nodeLength(point.node) === point.offset) {        if (isEditable(point.node)) {          return null;        }        node = point.node.parentNode;        offset = position(point.node) + 1;      } else if (hasChildren(point.node)) {        node = point.node.childNodes[point.offset];        offset = 0;      } else {        node = point.node;        offset = isSkipInnerOffset ? nodeLength(point.node) : point.offset + 1;      }      return {        node: node,        offset: offset      };    };    /**     * returns whether pointA and pointB is same or not.     *     * @param {BoundaryPoint} pointA     * @param {BoundaryPoint} pointB     * @return {Boolean}     */    var isSamePoint = function (pointA, pointB) {      return pointA.node === pointB.node && pointA.offset === pointB.offset;    };    /**     * returns whether point is visible (can set cursor) or not.     *      * @param {BoundaryPoint} point     * @return {Boolean}     */    var isVisiblePoint = function (point) {      if (isText(point.node) || !hasChildren(point.node) || isEmpty(point.node)) {        return true;      }      var leftNode = point.node.childNodes[point.offset - 1];      var rightNode = point.node.childNodes[point.offset];      if ((!leftNode || isVoid(leftNode)) && (!rightNode || isVoid(rightNode))) {        return true;      }      return false;    };    /**     * @method prevPointUtil     *     * @param {BoundaryPoint} point     * @param {Function} pred     * @return {BoundaryPoint}     */    var prevPointUntil = function (point, pred) {      while (point) {        if (pred(point)) {          return point;        }        point = prevPoint(point);      }      return null;    };    /**     * @method nextPointUntil     *     * @param {BoundaryPoint} point     * @param {Function} pred     * @return {BoundaryPoint}     */    var nextPointUntil = function (point, pred) {      while (point) {        if (pred(point)) {          return point;        }        point = nextPoint(point);      }      return null;    };    /**     * returns whether point has character or not.     *     * @param {Point} point     * @return {Boolean}     */    var isCharPoint = function (point) {      if (!isText(point.node)) {        return false;      }      var ch = point.node.nodeValue.charAt(point.offset - 1);      return ch && (ch !== ' ' && ch !== NBSP_CHAR);    };    /**     * @method walkPoint     *     * @param {BoundaryPoint} startPoint     * @param {BoundaryPoint} endPoint     * @param {Function} handler     * @param {Boolean} isSkipInnerOffset     */    var walkPoint = function (startPoint, endPoint, handler, isSkipInnerOffset) {      var point = startPoint;      while (point) {        handler(point);        if (isSamePoint(point, endPoint)) {          break;        }        var isSkipOffset = isSkipInnerOffset &&                           startPoint.node !== point.node &&                           endPoint.node !== point.node;        point = nextPoint(point, isSkipOffset);      }    };    /**     * @method makeOffsetPath     *     * return offsetPath(array of offset) from ancestor     *     * @param {Node} ancestor - ancestor node     * @param {Node} node     */    var makeOffsetPath = function (ancestor, node) {      var ancestors = listAncestor(node, func.eq(ancestor));      return ancestors.map(position).reverse();    };    /**     * @method fromOffsetPath     *     * return element from offsetPath(array of offset)     *     * @param {Node} ancestor - ancestor node     * @param {array} offsets - offsetPath     */    var fromOffsetPath = function (ancestor, offsets) {      var current = ancestor;      for (var i = 0, len = offsets.length; i < len; i++) {        if (current.childNodes.length <= offsets[i]) {          current = current.childNodes[current.childNodes.length - 1];        } else {          current = current.childNodes[offsets[i]];        }      }      return current;    };    /**     * @method splitNode     *     * split element or #text     *     * @param {BoundaryPoint} point     * @param {Object} [options]     * @param {Boolean} [options.isSkipPaddingBlankHTML] - default: false     * @param {Boolean} [options.isNotSplitEdgePoint] - default: false     * @return {Node} right node of boundaryPoint     */    var splitNode = function (point, options) {      var isSkipPaddingBlankHTML = options && options.isSkipPaddingBlankHTML;      var isNotSplitEdgePoint = options && options.isNotSplitEdgePoint;      // edge case      if (isEdgePoint(point) && (isText(point.node) || isNotSplitEdgePoint)) {        if (isLeftEdgePoint(point)) {          return point.node;        } else if (isRightEdgePoint(point)) {          return point.node.nextSibling;        }      }      // split #text      if (isText(point.node)) {        return point.node.splitText(point.offset);      } else {        var childNode = point.node.childNodes[point.offset];        var clone = insertAfter(point.node.cloneNode(false), point.node);        appendChildNodes(clone, listNext(childNode));        if (!isSkipPaddingBlankHTML) {          paddingBlankHTML(point.node);          paddingBlankHTML(clone);        }        return clone;      }    };    /**     * @method splitTree     *     * split tree by point     *     * @param {Node} root - split root     * @param {BoundaryPoint} point     * @param {Object} [options]     * @param {Boolean} [options.isSkipPaddingBlankHTML] - default: false     * @param {Boolean} [options.isNotSplitEdgePoint] - default: false     * @return {Node} right node of boundaryPoint     */    var splitTree = function (root, point, options) {      // ex) [#text, <span>, <p>]      var ancestors = listAncestor(point.node, func.eq(root));      if (!ancestors.length) {        return null;      } else if (ancestors.length === 1) {        return splitNode(point, options);      }      return ancestors.reduce(function (node, parent) {        if (node === point.node) {          node = splitNode(point, options);        }        return splitNode({          node: parent,          offset: node ? dom.position(node) : nodeLength(parent)        }, options);      });    };    /**     * split point     *     * @param {Point} point     * @param {Boolean} isInline     * @return {Object}     */    var splitPoint = function (point, isInline) {      // find splitRoot, container      //  - inline: splitRoot is a child of paragraph      //  - block: splitRoot is a child of bodyContainer      var pred = isInline ? isPara : isBodyContainer;      var ancestors = listAncestor(point.node, pred);      var topAncestor = list.last(ancestors) || point.node;      var splitRoot, container;      if (pred(topAncestor)) {        splitRoot = ancestors[ancestors.length - 2];        container = topAncestor;      } else {        splitRoot = topAncestor;        container = splitRoot.parentNode;      }      // if splitRoot is exists, split with splitTree      var pivot = splitRoot && splitTree(splitRoot, point, {        isSkipPaddingBlankHTML: isInline,        isNotSplitEdgePoint: isInline      });      // if container is point.node, find pivot with point.offset      if (!pivot && container === point.node) {        pivot = point.node.childNodes[point.offset];      }      return {        rightNode: pivot,        container: container      };    };    var create = function (nodeName) {      return document.createElement(nodeName);    };    var createText = function (text) {      return document.createTextNode(text);    };    /**     * @method remove     *     * remove node, (isRemoveChild: remove child or not)     *     * @param {Node} node     * @param {Boolean} isRemoveChild     */    var remove = function (node, isRemoveChild) {      if (!node || !node.parentNode) { return; }      if (node.removeNode) { return node.removeNode(isRemoveChild); }      var parent = node.parentNode;      if (!isRemoveChild) {        var nodes = [];        var i, len;        for (i = 0, len = node.childNodes.length; i < len; i++) {          nodes.push(node.childNodes[i]);        }        for (i = 0, len = nodes.length; i < len; i++) {          parent.insertBefore(nodes[i], node);        }      }      parent.removeChild(node);    };    /**     * @method removeWhile     *     * @param {Node} node     * @param {Function} pred     */    var removeWhile = function (node, pred) {      while (node) {        if (isEditable(node) || !pred(node)) {          break;        }        var parent = node.parentNode;        remove(node);        node = parent;      }    };    /**     * @method replace     *     * replace node with provided nodeName     *     * @param {Node} node     * @param {String} nodeName     * @return {Node} - new node     */    var replace = function (node, nodeName) {      if (node.nodeName.toUpperCase() === nodeName.toUpperCase()) {        return node;      }      var newNode = create(nodeName);      if (node.style.cssText) {        newNode.style.cssText = node.style.cssText;      }      appendChildNodes(newNode, list.from(node.childNodes));      insertAfter(newNode, node);      remove(node);      return newNode;    };    var isTextarea = makePredByNodeName('TEXTAREA');    /**     * @param {jQuery} $node     * @param {Boolean} [stripLinebreaks] - default: false     */    var value = function ($node, stripLinebreaks) {      var val = isTextarea($node[0]) ? $node.val() : $node.html();      if (stripLinebreaks) {        return val.replace(/[\n\r]/g, '');      }      return val;    };    /**     * @method html     *     * get the HTML contents of node     *     * @param {jQuery} $node     * @param {Boolean} [isNewlineOnBlock]     */    var html = function ($node, isNewlineOnBlock) {      var markup = value($node);      if (isNewlineOnBlock) {        var regexTag = /<(\/?)(\b(?!!)[^>\s]*)(.*?)(\s*\/?>)/g;        markup = markup.replace(regexTag, function (match, endSlash, name) {          name = name.toUpperCase();          var isEndOfInlineContainer = /^DIV|^TD|^TH|^P|^LI|^H[1-7]/.test(name) &&                                       !!endSlash;          var isBlockNode = /^BLOCKQUOTE|^TABLE|^TBODY|^TR|^HR|^UL|^OL/.test(name);          return match + ((isEndOfInlineContainer || isBlockNode) ? '\n' : '');        });        markup = $.trim(markup);      }      return markup;    };    var posFromPlaceholder = function (placeholder) {      var $placeholder = $(placeholder);      var pos = $placeholder.offset();      var height = $placeholder.outerHeight(true); // include margin      return {        left: pos.left,        top: pos.top + height      };    };    var attachEvents = function ($node, events) {      Object.keys(events).forEach(function (key) {        $node.on(key, events[key]);      });    };    var detachEvents = function ($node, events) {      Object.keys(events).forEach(function (key) {        $node.off(key, events[key]);      });    };    return {      /** @property {String} NBSP_CHAR */      NBSP_CHAR: NBSP_CHAR,      /** @property {String} ZERO_WIDTH_NBSP_CHAR */      ZERO_WIDTH_NBSP_CHAR: ZERO_WIDTH_NBSP_CHAR,      /** @property {String} blank */      blank: blankHTML,      /** @property {String} emptyPara */      emptyPara: '<p>' + blankHTML + '</p>',      makePredByNodeName: makePredByNodeName,      isEditable: isEditable,      isControlSizing: isControlSizing,      isText: isText,      isElement: isElement,      isVoid: isVoid,      isPara: isPara,      isPurePara: isPurePara,      isHeading: isHeading,      isInline: isInline,      isBlock: func.not(isInline),      isBodyInline: isBodyInline,      isBody: isBody,      isParaInline: isParaInline,      isPre: isPre,      isList: isList,      isTable: isTable,      isCell: isCell,      isBlockquote: isBlockquote,      isBodyContainer: isBodyContainer,      isAnchor: isAnchor,      isDiv: makePredByNodeName('DIV'),      isLi: isLi,      isBR: makePredByNodeName('BR'),      isSpan: makePredByNodeName('SPAN'),      isB: makePredByNodeName('B'),      isU: makePredByNodeName('U'),      isS: makePredByNodeName('S'),      isI: makePredByNodeName('I'),      isImg: makePredByNodeName('IMG'),      isTextarea: isTextarea,      isEmpty: isEmpty,      isEmptyAnchor: func.and(isAnchor, isEmpty),      isClosestSibling: isClosestSibling,      withClosestSiblings: withClosestSiblings,      nodeLength: nodeLength,      isLeftEdgePoint: isLeftEdgePoint,      isRightEdgePoint: isRightEdgePoint,      isEdgePoint: isEdgePoint,      isLeftEdgeOf: isLeftEdgeOf,      isRightEdgeOf: isRightEdgeOf,      isLeftEdgePointOf: isLeftEdgePointOf,      isRightEdgePointOf: isRightEdgePointOf,      prevPoint: prevPoint,      nextPoint: nextPoint,      isSamePoint: isSamePoint,      isVisiblePoint: isVisiblePoint,      prevPointUntil: prevPointUntil,      nextPointUntil: nextPointUntil,      isCharPoint: isCharPoint,      walkPoint: walkPoint,      ancestor: ancestor,      singleChildAncestor: singleChildAncestor,      listAncestor: listAncestor,      lastAncestor: lastAncestor,      listNext: listNext,      listPrev: listPrev,      listDescendant: listDescendant,      commonAncestor: commonAncestor,      wrap: wrap,      insertAfter: insertAfter,      appendChildNodes: appendChildNodes,      position: position,      hasChildren: hasChildren,      makeOffsetPath: makeOffsetPath,      fromOffsetPath: fromOffsetPath,      splitTree: splitTree,      splitPoint: splitPoint,      create: create,      createText: createText,      remove: remove,      removeWhile: removeWhile,      replace: replace,      html: html,      value: value,      posFromPlaceholder: posFromPlaceholder,      attachEvents: attachEvents,      detachEvents: detachEvents    };  })();  /**   * @param {jQuery} $note   * @param {Object} options   * @return {Context}   */  var Context = function ($note, options) {    var self = this;    var ui = $.summernote.ui;    this.memos = {};    this.modules = {};    this.layoutInfo = {};    this.options = options;    /**     * create layout and initialize modules and other resources     */    this.initialize = function () {      this.layoutInfo = ui.createLayout($note, options);      this._initialize();      $note.hide();      return this;    };    /**     * destroy modules and other resources and remove layout     */    this.destroy = function () {      this._destroy();      $note.removeData('summernote');      ui.removeLayout($note, this.layoutInfo);    };    /**     * destory modules and other resources and initialize it again     */    this.reset = function () {      var disabled = self.isDisabled();      this.code(dom.emptyPara);      this._destroy();      this._initialize();      if (disabled) {        self.disable();      }    };    this._initialize = function () {      // add optional buttons      var buttons = $.extend({}, this.options.buttons);      Object.keys(buttons).forEach(function (key) {        self.memo('button.' + key, buttons[key]);      });      var modules = $.extend({}, this.options.modules, $.summernote.plugins || {});      // add and initialize modules      Object.keys(modules).forEach(function (key) {        self.module(key, modules[key], true);      });      Object.keys(this.modules).forEach(function (key) {        self.initializeModule(key);      });    };    this._destroy = function () {      // destroy modules with reversed order      Object.keys(this.modules).reverse().forEach(function (key) {        self.removeModule(key);      });      Object.keys(this.memos).forEach(function (key) {        self.removeMemo(key);      });    };    this.code = function (html) {      var isActivated = this.invoke('codeview.isActivated');      if (html === undefined) {        this.invoke('codeview.sync');        return isActivated ? this.layoutInfo.codable.val() : this.layoutInfo.editable.html();      } else {        if (isActivated) {          this.layoutInfo.codable.val(html);        } else {          this.layoutInfo.editable.html(html);        }        $note.val(html);        this.triggerEvent('change', html);      }    };    this.isDisabled = function () {      return this.layoutInfo.editable.attr('contenteditable') === 'false';    };    this.enable = function () {      this.layoutInfo.editable.attr('contenteditable', true);      this.invoke('toolbar.activate', true);    };    this.disable = function () {      // close codeview if codeview is opend      if (this.invoke('codeview.isActivated')) {        this.invoke('codeview.deactivate');      }      this.layoutInfo.editable.attr('contenteditable', false);      this.invoke('toolbar.deactivate', true);    };    this.triggerEvent = function () {      var namespace = list.head(arguments);      var args = list.tail(list.from(arguments));      var callback = this.options.callbacks[func.namespaceToCamel(namespace, 'on')];      if (callback) {        callback.apply($note[0], args);      }      $note.trigger('summernote.' + namespace, args);    };    this.initializeModule = function (key) {      var module = this.modules[key];      module.shouldInitialize = module.shouldInitialize || func.ok;      if (!module.shouldInitialize()) {        return;      }      // initialize module      if (module.initialize) {        module.initialize();      }      // attach events      if (module.events) {        dom.attachEvents($note, module.events);      }    };    this.module = function (key, ModuleClass, withoutIntialize) {      if (arguments.length === 1) {        return this.modules[key];      }      this.modules[key] = new ModuleClass(this);      if (!withoutIntialize) {        this.initializeModule(key);      }    };    this.removeModule = function (key) {      var module = this.modules[key];      if (module.shouldInitialize()) {        if (module.events) {          dom.detachEvents($note, module.events);        }        if (module.destroy) {          module.destroy();        }      }      delete this.modules[key];    };    this.memo = function (key, obj) {      if (arguments.length === 1) {        return this.memos[key];      }      this.memos[key] = obj;    };    this.removeMemo = function (key) {      if (this.memos[key] && this.memos[key].destroy) {        this.memos[key].destroy();      }      delete this.memos[key];    };    this.createInvokeHandler = function (namespace, value) {      return function (event) {        event.preventDefault();        self.invoke(namespace, value || $(event.target).closest('[data-value]').data('value'));      };    };    this.invoke = function () {      var namespace = list.head(arguments);      var args = list.tail(list.from(arguments));      var splits = namespace.split('.');      var hasSeparator = splits.length > 1;      var moduleName = hasSeparator && list.head(splits);      var methodName = hasSeparator ? list.last(splits) : list.head(splits);      var module = this.modules[moduleName || 'editor'];      if (!moduleName && this[methodName]) {        return this[methodName].apply(this, args);      } else if (module && module[methodName] && module.shouldInitialize()) {        return module[methodName].apply(module, args);      }    };    return this.initialize();  };  $.fn.extend({    /**     * Summernote API     *     * @param {Object|String}     * @return {this}     */    summernote: function () {      var type = $.type(list.head(arguments));      var isExternalAPICalled = type === 'string';      var hasInitOptions = type === 'object';      var options = hasInitOptions ? list.head(arguments) : {};      options = $.extend({}, $.summernote.options, options);      options.langInfo = $.extend(true, {}, $.summernote.lang['en-US'], $.summernote.lang[options.lang]);      this.each(function (idx, note) {        var $note = $(note);        if (!$note.data('summernote')) {          var context = new Context($note, options);          $note.data('summernote', context);          $note.data('summernote').triggerEvent('init', context.layoutInfo);        }      });      var $note = this.first();      if ($note.length) {        var context = $note.data('summernote');        if (isExternalAPICalled) {          return context.invoke.apply(context, list.from(arguments));        } else if (options.focus) {          context.invoke('editor.focus');        }      }      return this;    }  });  var Renderer = function (markup, children, options, callback) {    this.render = function ($parent) {      var $node = $(markup);      if (options && options.contents) {        $node.html(options.contents);      }      if (options && options.className) {        $node.addClass(options.className);      }      if (options && options.data) {        $.each(options.data, function (k, v) {          $node.attr('data-' + k, v);        });      }      if (options && options.click) {        $node.on('click', options.click);      }      if (children) {        var $container = $node.find('.note-children-container');        children.forEach(function (child) {          child.render($container.length ? $container : $node);        });      }      if (callback) {        callback($node, options);      }      if (options && options.callback) {        options.callback($node);      }      if ($parent) {        $parent.append($node);      }      return $node;    };  };  var renderer = {    create: function (markup, callback) {      return function () {        var children = $.isArray(arguments[0]) ? arguments[0] : [];        var options = typeof arguments[1] === 'object' ? arguments[1] : arguments[0];        if (options && options.children) {          children = options.children;        }        return new Renderer(markup, children, options, callback);      };    }  };  var editor = renderer.create('<div class="note-editor note-frame panel panel-default"/>');  var toolbar = renderer.create('<div class="note-toolbar panel-heading"/>');  var editingArea = renderer.create('<div class="note-editing-area"/>');  var codable = renderer.create('<textarea class="note-codable"/>');  var editable = renderer.create('<div class="note-editable panel-body" contentEditable="true"/>');  var statusbar = renderer.create([    '<div class="note-statusbar">',    '  <div class="note-resizebar">',    '    <div class="note-icon-bar"/>',    '    <div class="note-icon-bar"/>',    '    <div class="note-icon-bar"/>',    '  </div>',    '</div>'  ].join(''));  var airEditor = renderer.create('<div class="note-editor"/>');  var airEditable = renderer.create('<div class="note-editable" contentEditable="true"/>');  var buttonGroup = renderer.create('<div class="note-btn-group btn-group">');  var button = renderer.create('<button type="button" class="note-btn btn btn-default btn-sm">', function ($node, options) {    if (options && options.tooltip) {      $node.attr({        title: options.tooltip      }).tooltip({        container: 'body',        trigger: 'hover',        placement: 'bottom'      });    }  });  var dropdown = renderer.create('<div class="dropdown-menu">', function ($node, options) {    var markup = $.isArray(options.items) ? options.items.map(function (item) {      var value = (typeof item === 'string') ? item : (item.value || '');      var content = options.template ? options.template(item) : item;      return '<li><a href="#" data-value="' + value + '">' + content + '</a></li>';    }).join('') : options.items;    $node.html(markup);  });  var dropdownCheck = renderer.create('<div class="dropdown-menu note-check">', function ($node, options) {    var markup = $.isArray(options.items) ? options.items.map(function (item) {      var value = (typeof item === 'string') ? item : (item.value || '');      var content = options.template ? options.template(item) : item;      return '<li><a href="#" data-value="' + value + '">' + icon(options.checkClassName) + ' ' + content + '</a></li>';    }).join('') : options.items;    $node.html(markup);  });  var palette = renderer.create('<div class="note-color-palette"/>', function ($node, options) {    var contents = [];    for (var row = 0, rowSize = options.colors.length; row < rowSize; row++) {      var eventName = options.eventName;      var colors = options.colors[row];      var buttons = [];      for (var col = 0, colSize = colors.length; col < colSize; col++) {        var color = colors[col];        buttons.push([          '<button type="button" class="note-color-btn"',          'style="background-color:', color, '" ',          'data-event="', eventName, '" ',          'data-value="', color, '" ',          'title="', color, '" ',          'data-toggle="button" tabindex="-1"></button>'        ].join(''));      }      contents.push('<div class="note-color-row">' + buttons.join('') + '</div>');    }    $node.html(contents.join(''));    $node.find('.note-color-btn').tooltip({      container: 'body',      trigger: 'hover',      placement: 'bottom'    });  });  var dialog = renderer.create('<div class="modal" aria-hidden="false" tabindex="-1"/>', function ($node, options) {    if (options.fade) {      $node.addClass('fade');    }    $node.html([      '<div class="modal-dialog">',      '  <div class="modal-content">',      (options.title ?      '    <div class="modal-header">' +      '      <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>' +      '      <h4 class="modal-title">' + options.title + '</h4>' +      '    </div>' : ''      ),      '    <div class="modal-body">' + options.body + '</div>',      (options.footer ?      '    <div class="modal-footer">' + options.footer + '</div>' : ''      ),      '  </div>',      '</div>'    ].join(''));  });  var popover = renderer.create([    '<div class="note-popover popover in">',    '  <div class="arrow"/>',    '  <div class="popover-content note-children-container"/>',    '</div>'  ].join(''), function ($node, options) {    var direction = typeof options.direction !== 'undefined' ? options.direction : 'bottom';    $node.addClass(direction);    if (options.hideArrow) {      $node.find('.arrow').hide();    }  });  var icon = function (iconClassName, tagName) {    tagName = tagName || 'i';    return '<' + tagName + ' class="' + iconClassName + '"/>';  };  var ui = {    editor: editor,    toolbar: toolbar,    editingArea: editingArea,    codable: codable,    editable: editable,    statusbar: statusbar,    airEditor: airEditor,    airEditable: airEditable,    buttonGroup: buttonGroup,    button: button,    dropdown: dropdown,    dropdownCheck: dropdownCheck,    palette: palette,    dialog: dialog,    popover: popover,    icon: icon,    toggleBtn: function ($btn, isEnable) {      $btn.toggleClass('disabled', !isEnable);      $btn.attr('disabled', !isEnable);    },    toggleBtnActive: function ($btn, isActive) {      $btn.toggleClass('active', isActive);    },    onDialogShown: function ($dialog, handler) {      $dialog.one('shown.bs.modal', handler);    },    onDialogHidden: function ($dialog, handler) {      $dialog.one('hidden.bs.modal', handler);    },    showDialog: function ($dialog) {      $dialog.modal('show');    },    hideDialog: function ($dialog) {      $dialog.modal('hide');    },    createLayout: function ($note, options) {      var $editor = (options.airMode ? ui.airEditor([        ui.editingArea([          ui.airEditable()        ])      ]) : ui.editor([        ui.toolbar(),        ui.editingArea([          ui.codable(),          ui.editable()        ]),        ui.statusbar()      ])).render();      $editor.insertAfter($note);      return {        note: $note,        editor: $editor,        toolbar: $editor.find('.note-toolbar'),        editingArea: $editor.find('.note-editing-area'),        editable: $editor.find('.note-editable'),        codable: $editor.find('.note-codable'),        statusbar: $editor.find('.note-statusbar')      };    },    removeLayout: function ($note, layoutInfo) {      $note.html(layoutInfo.editable.html());      layoutInfo.editor.remove();      $note.show();    }  };  $.summernote = $.summernote || {    lang: {}  };  $.extend($.summernote.lang, {    'en-US': {      font: {        bold: 'Bold',        italic: 'Italic',        underline: 'Underline',        clear: 'Remove Font Style',        height: 'Line Height',        name: 'Font Family',        strikethrough: 'Strikethrough',        subscript: 'Subscript',        superscript: 'Superscript',        size: 'Font Size'      },      image: {        image: 'Picture',        insert: 'Insert Image',        resizeFull: 'Resize Full',        resizeHalf: 'Resize Half',        resizeQuarter: 'Resize Quarter',        floatLeft: 'Float Left',        floatRight: 'Float Right',        floatNone: 'Float None',        shapeRounded: 'Shape: Rounded',        shapeCircle: 'Shape: Circle',        shapeThumbnail: 'Shape: Thumbnail',        shapeNone: 'Shape: None',        dragImageHere: 'Drag image or text here',        dropImage: 'Drop image or Text',        selectFromFiles: 'Select from files',        maximumFileSize: 'Maximum file size',        maximumFileSizeError: 'Maximum file size exceeded.',        url: 'Image URL',        remove: 'Remove Image'      },      video: {        video: 'Video',        videoLink: 'Video Link',        insert: 'Insert Video',        url: 'Video URL?',        providers: '(YouTube, Vimeo, Vine, Instagram, DailyMotion or Youku)'      },      link: {        link: 'Link',        insert: 'Insert Link',        unlink: 'Unlink',        edit: 'Edit',        textToDisplay: 'Text to display',        url: 'To what URL should this link go?',        openInNewWindow: 'Open in new window'      },      table: {        table: 'Table'      },      hr: {        insert: 'Insert Horizontal Rule'      },      style: {        style: 'Style',        normal: 'Normal',        blockquote: 'Quote',        pre: 'Code',        h1: 'Header 1',        h2: 'Header 2',        h3: 'Header 3',        h4: 'Header 4',        h5: 'Header 5',        h6: 'Header 6'      },      lists: {        unordered: 'Unordered list',        ordered: 'Ordered list'      },      options: {        help: 'Help',        fullscreen: 'Full Screen',        codeview: 'Code View'      },      paragraph: {        paragraph: 'Paragraph',        outdent: 'Outdent',        indent: 'Indent',        left: 'Align left',        center: 'Align center',        right: 'Align right',        justify: 'Justify full'      },      color: {        recent: 'Recent Color',        more: 'More Color',        background: 'Background Color',        foreground: 'Foreground Color',        transparent: 'Transparent',        setTransparent: 'Set transparent',        reset: 'Reset',        resetToDefault: 'Reset to default'      },      shortcut: {        shortcuts: 'Keyboard shortcuts',        close: 'Close',        textFormatting: 'Text formatting',        action: 'Action',        paragraphFormatting: 'Paragraph formatting',        documentStyle: 'Document Style',        extraKeys: 'Extra keys'      },      help: {        'insertParagraph': 'Insert Paragraph',        'undo': 'Undoes the last command',        'redo': 'Redoes the last command',        'tab': 'Tab',        'untab': 'Untab',        'bold': 'Set a bold style',        'italic': 'Set a italic style',        'underline': 'Set a underline style',        'strikethrough': 'Set a strikethrough style',        'removeFormat': 'Clean a style',        'justifyLeft': 'Set left align',        'justifyCenter': 'Set center align',        'justifyRight': 'Set right align',        'justifyFull': 'Set full align',        'insertUnorderedList': 'Toggle unordered list',        'insertOrderedList': 'Toggle ordered list',        'outdent': 'Outdent on current paragraph',        'indent': 'Indent on current paragraph',        'formatPara': 'Change current block\'s format as a paragraph(P tag)',        'formatH1': 'Change current block\'s format as H1',        'formatH2': 'Change current block\'s format as H2',        'formatH3': 'Change current block\'s format as H3',        'formatH4': 'Change current block\'s format as H4',        'formatH5': 'Change current block\'s format as H5',        'formatH6': 'Change current block\'s format as H6',        'insertHorizontalRule': 'Insert horizontal rule',        'linkDialog.show': 'Show Link Dialog'      },      history: {        undo: 'Undo',        redo: 'Redo'      },      specialChar: {        specialChar: 'SPECIAL CHARACTERS',        select: 'Select Special characters'      }    }  });  /**   * @class core.key   *   * Object for keycodes.   *   * @singleton   * @alternateClassName key   */  var key = (function () {    var keyMap = {      'BACKSPACE': 8,      'TAB': 9,      'ENTER': 13,      'SPACE': 32,      // Arrow      'LEFT': 37,      'UP': 38,      'RIGHT': 39,      'DOWN': 40,      // Number: 0-9      'NUM0': 48,      'NUM1': 49,      'NUM2': 50,      'NUM3': 51,      'NUM4': 52,      'NUM5': 53,      'NUM6': 54,      'NUM7': 55,      'NUM8': 56,      // Alphabet: a-z      'B': 66,      'E': 69,      'I': 73,      'J': 74,      'K': 75,      'L': 76,      'R': 82,      'S': 83,      'U': 85,      'V': 86,      'Y': 89,      'Z': 90,      'SLASH': 191,      'LEFTBRACKET': 219,      'BACKSLASH': 220,      'RIGHTBRACKET': 221    };    return {      /**       * @method isEdit       *       * @param {Number} keyCode       * @return {Boolean}       */      isEdit: function (keyCode) {        return list.contains([          keyMap.BACKSPACE,          keyMap.TAB,          keyMap.ENTER,          keyMap.SPACE        ], keyCode);      },      /**       * @method isMove       *       * @param {Number} keyCode       * @return {Boolean}       */      isMove: function (keyCode) {        return list.contains([          keyMap.LEFT,          keyMap.UP,          keyMap.RIGHT,          keyMap.DOWN        ], keyCode);      },      /**       * @property {Object} nameFromCode       * @property {String} nameFromCode.8 "BACKSPACE"       */      nameFromCode: func.invertObject(keyMap),      code: keyMap    };  })();  var range = (function () {    /**     * return boundaryPoint from TextRange, inspired by Andy Na's HuskyRange.js     *     * @param {TextRange} textRange     * @param {Boolean} isStart     * @return {BoundaryPoint}     *     * @see http://msdn.microsoft.com/en-us/library/ie/ms535872(v=vs.85).aspx     */    var textRangeToPoint = function (textRange, isStart) {      var container = textRange.parentElement(), offset;        var tester = document.body.createTextRange(), prevContainer;      var childNodes = list.from(container.childNodes);      for (offset = 0; offset < childNodes.length; offset++) {        if (dom.isText(childNodes[offset])) {          continue;        }        tester.moveToElementText(childNodes[offset]);        if (tester.compareEndPoints('StartToStart', textRange) >= 0) {          break;        }        prevContainer = childNodes[offset];      }        if (offset !== 0 && dom.isText(childNodes[offset - 1])) {        var textRangeStart = document.body.createTextRange(), curTextNode = null;        textRangeStart.moveToElementText(prevContainer || container);        textRangeStart.collapse(!prevContainer);        curTextNode = prevContainer ? prevContainer.nextSibling : container.firstChild;          var pointTester = textRange.duplicate();        pointTester.setEndPoint('StartToStart', textRangeStart);        var textCount = pointTester.text.replace(/[\r\n]/g, '').length;          while (textCount > curTextNode.nodeValue.length && curTextNode.nextSibling) {          textCount -= curTextNode.nodeValue.length;          curTextNode = curTextNode.nextSibling;        }          /* jshint ignore:start */        var dummy = curTextNode.nodeValue; // enforce IE to re-reference curTextNode, hack        /* jshint ignore:end */          if (isStart && curTextNode.nextSibling && dom.isText(curTextNode.nextSibling) &&            textCount === curTextNode.nodeValue.length) {          textCount -= curTextNode.nodeValue.length;          curTextNode = curTextNode.nextSibling;        }          container = curTextNode;        offset = textCount;      }        return {        cont: container,        offset: offset      };    };        /**     * return TextRange from boundary point (inspired by google closure-library)     * @param {BoundaryPoint} point     * @return {TextRange}     */    var pointToTextRange = function (point) {      var textRangeInfo = function (container, offset) {        var node, isCollapseToStart;          if (dom.isText(container)) {          var prevTextNodes = dom.listPrev(container, func.not(dom.isText));          var prevContainer = list.last(prevTextNodes).previousSibling;          node =  prevContainer || container.parentNode;          offset += list.sum(list.tail(prevTextNodes), dom.nodeLength);          isCollapseToStart = !prevContainer;        } else {          node = container.childNodes[offset] || container;          if (dom.isText(node)) {            return textRangeInfo(node, 0);          }            offset = 0;          isCollapseToStart = false;        }          return {          node: node,          collapseToStart: isCollapseToStart,          offset: offset        };      };        var textRange = document.body.createTextRange();      var info = textRangeInfo(point.node, point.offset);        textRange.moveToElementText(info.node);      textRange.collapse(info.collapseToStart);      textRange.moveStart('character', info.offset);      return textRange;    };        /**     * Wrapped Range     *     * @constructor     * @param {Node} sc - start container     * @param {Number} so - start offset     * @param {Node} ec - end container     * @param {Number} eo - end offset     */    var WrappedRange = function (sc, so, ec, eo) {      this.sc = sc;      this.so = so;      this.ec = ec;      this.eo = eo;        // nativeRange: get nativeRange from sc, so, ec, eo      var nativeRange = function () {        if (agent.isW3CRangeSupport) {          var w3cRange = document.createRange();          w3cRange.setStart(sc, so);          w3cRange.setEnd(ec, eo);          return w3cRange;        } else {          var textRange = pointToTextRange({            node: sc,            offset: so          });          textRange.setEndPoint('EndToEnd', pointToTextRange({            node: ec,            offset: eo          }));          return textRange;        }      };      this.getPoints = function () {        return {          sc: sc,          so: so,          ec: ec,          eo: eo        };      };      this.getStartPoint = function () {        return {          node: sc,          offset: so        };      };      this.getEndPoint = function () {        return {          node: ec,          offset: eo        };      };      /**       * select update visible range       */      this.select = function () {        var nativeRng = nativeRange();        if (agent.isW3CRangeSupport) {          var selection = document.getSelection();          if (selection.rangeCount > 0) {            selection.removeAllRanges();          }          selection.addRange(nativeRng);        } else {          nativeRng.select();        }                return this;      };      /**       * Moves the scrollbar to start container(sc) of current range       *       * @return {WrappedRange}       */      this.scrollIntoView = function (container) {        var height = $(container).height();        if (container.scrollTop + height < this.sc.offsetTop) {          container.scrollTop += Math.abs(container.scrollTop + height - this.sc.offsetTop);        }        return this;      };      /**       * @return {WrappedRange}       */      this.normalize = function () {        /**         * @param {BoundaryPoint} point         * @param {Boolean} isLeftToRight         * @return {BoundaryPoint}         */        var getVisiblePoint = function (point, isLeftToRight) {          if ((dom.isVisiblePoint(point) && !dom.isEdgePoint(point)) ||              (dom.isVisiblePoint(point) && dom.isRightEdgePoint(point) && !isLeftToRight) ||              (dom.isVisiblePoint(point) && dom.isLeftEdgePoint(point) && isLeftToRight) ||              (dom.isVisiblePoint(point) && dom.isBlock(point.node) && dom.isEmpty(point.node))) {            return point;          }          // point on block's edge          var block = dom.ancestor(point.node, dom.isBlock);          if (((dom.isLeftEdgePointOf(point, block) || dom.isVoid(dom.prevPoint(point).node)) && !isLeftToRight) ||              ((dom.isRightEdgePointOf(point, block) || dom.isVoid(dom.nextPoint(point).node)) && isLeftToRight)) {            // returns point already on visible point            if (dom.isVisiblePoint(point)) {              return point;            }            // reverse direction             isLeftToRight = !isLeftToRight;          }          var nextPoint = isLeftToRight ? dom.nextPointUntil(dom.nextPoint(point), dom.isVisiblePoint) :                                          dom.prevPointUntil(dom.prevPoint(point), dom.isVisiblePoint);          return nextPoint || point;        };        var endPoint = getVisiblePoint(this.getEndPoint(), false);        var startPoint = this.isCollapsed() ? endPoint : getVisiblePoint(this.getStartPoint(), true);        return new WrappedRange(          startPoint.node,          startPoint.offset,          endPoint.node,          endPoint.offset        );      };      /**       * returns matched nodes on range       *       * @param {Function} [pred] - predicate function       * @param {Object} [options]       * @param {Boolean} [options.includeAncestor]       * @param {Boolean} [options.fullyContains]       * @return {Node[]}       */      this.nodes = function (pred, options) {        pred = pred || func.ok;        var includeAncestor = options && options.includeAncestor;        var fullyContains = options && options.fullyContains;        // TODO compare points and sort        var startPoint = this.getStartPoint();        var endPoint = this.getEndPoint();        var nodes = [];        var leftEdgeNodes = [];        dom.walkPoint(startPoint, endPoint, function (point) {          if (dom.isEditable(point.node)) {            return;          }          var node;          if (fullyContains) {            if (dom.isLeftEdgePoint(point)) {              leftEdgeNodes.push(point.node);            }            if (dom.isRightEdgePoint(point) && list.contains(leftEdgeNodes, point.node)) {              node = point.node;            }          } else if (includeAncestor) {            node = dom.ancestor(point.node, pred);          } else {            node = point.node;          }          if (node && pred(node)) {            nodes.push(node);          }        }, true);        return list.unique(nodes);      };      /**       * returns commonAncestor of range       * @return {Element} - commonAncestor       */      this.commonAncestor = function () {        return dom.commonAncestor(sc, ec);      };      /**       * returns expanded range by pred       *       * @param {Function} pred - predicate function       * @return {WrappedRange}       */      this.expand = function (pred) {        var startAncestor = dom.ancestor(sc, pred);        var endAncestor = dom.ancestor(ec, pred);        if (!startAncestor && !endAncestor) {          return new WrappedRange(sc, so, ec, eo);        }        var boundaryPoints = this.getPoints();        if (startAncestor) {          boundaryPoints.sc = startAncestor;          boundaryPoints.so = 0;        }        if (endAncestor) {          boundaryPoints.ec = endAncestor;          boundaryPoints.eo = dom.nodeLength(endAncestor);        }        return new WrappedRange(          boundaryPoints.sc,          boundaryPoints.so,          boundaryPoints.ec,          boundaryPoints.eo        );      };      /**       * @param {Boolean} isCollapseToStart       * @return {WrappedRange}       */      this.collapse = function (isCollapseToStart) {        if (isCollapseToStart) {          return new WrappedRange(sc, so, sc, so);        } else {          return new WrappedRange(ec, eo, ec, eo);        }      };      /**       * splitText on range       */      this.splitText = function () {        var isSameContainer = sc === ec;        var boundaryPoints = this.getPoints();        if (dom.isText(ec) && !dom.isEdgePoint(this.getEndPoint())) {          ec.splitText(eo);        }        if (dom.isText(sc) && !dom.isEdgePoint(this.getStartPoint())) {          boundaryPoints.sc = sc.splitText(so);          boundaryPoints.so = 0;          if (isSameContainer) {            boundaryPoints.ec = boundaryPoints.sc;            boundaryPoints.eo = eo - so;          }        }        return new WrappedRange(          boundaryPoints.sc,          boundaryPoints.so,          boundaryPoints.ec,          boundaryPoints.eo        );      };      /**       * delete contents on range       * @return {WrappedRange}       */      this.deleteContents = function () {        if (this.isCollapsed()) {          return this;        }        var rng = this.splitText();        var nodes = rng.nodes(null, {          fullyContains: true        });        // find new cursor point        var point = dom.prevPointUntil(rng.getStartPoint(), function (point) {          return !list.contains(nodes, point.node);        });        var emptyParents = [];        $.each(nodes, function (idx, node) {          // find empty parents          var parent = node.parentNode;          if (point.node !== parent && dom.nodeLength(parent) === 1) {            emptyParents.push(parent);          }          dom.remove(node, false);        });        // remove empty parents        $.each(emptyParents, function (idx, node) {          dom.remove(node, false);        });        return new WrappedRange(          point.node,          point.offset,          point.node,          point.offset        ).normalize();      };            /**       * makeIsOn: return isOn(pred) function       */      var makeIsOn = function (pred) {        return function () {          var ancestor = dom.ancestor(sc, pred);          return !!ancestor && (ancestor === dom.ancestor(ec, pred));        };      };        // isOnEditable: judge whether range is on editable or not      this.isOnEditable = makeIsOn(dom.isEditable);      // isOnList: judge whether range is on list node or not      this.isOnList = makeIsOn(dom.isList);      // isOnAnchor: judge whether range is on anchor node or not      this.isOnAnchor = makeIsOn(dom.isAnchor);      // isOnAnchor: judge whether range is on cell node or not      this.isOnCell = makeIsOn(dom.isCell);      /**       * @param {Function} pred       * @return {Boolean}       */      this.isLeftEdgeOf = function (pred) {        if (!dom.isLeftEdgePoint(this.getStartPoint())) {          return false;        }        var node = dom.ancestor(this.sc, pred);        return node && dom.isLeftEdgeOf(this.sc, node);      };      /**       * returns whether range was collapsed or not       */      this.isCollapsed = function () {        return sc === ec && so === eo;      };      /**       * wrap inline nodes which children of body with paragraph       *       * @return {WrappedRange}       */      this.wrapBodyInlineWithPara = function () {        if (dom.isBodyContainer(sc) && dom.isEmpty(sc)) {          sc.innerHTML = dom.emptyPara;          return new WrappedRange(sc.firstChild, 0, sc.firstChild, 0);        }        /**         * [workaround] firefox often create range on not visible point. so normalize here.         *  - firefox: |<p>text</p>|         *  - chrome: <p>|text|</p>         */        var rng = this.normalize();        if (dom.isParaInline(sc) || dom.isPara(sc)) {          return rng;        }        // find inline top ancestor        var topAncestor;        if (dom.isInline(rng.sc)) {          var ancestors = dom.listAncestor(rng.sc, func.not(dom.isInline));          topAncestor = list.last(ancestors);          if (!dom.isInline(topAncestor)) {            topAncestor = ancestors[ancestors.length - 2] || rng.sc.childNodes[rng.so];          }        } else {          topAncestor = rng.sc.childNodes[rng.so > 0 ? rng.so - 1 : 0];        }        // siblings not in paragraph        var inlineSiblings = dom.listPrev(topAncestor, dom.isParaInline).reverse();        inlineSiblings = inlineSiblings.concat(dom.listNext(topAncestor.nextSibling, dom.isParaInline));        // wrap with paragraph        if (inlineSiblings.length) {          var para = dom.wrap(list.head(inlineSiblings), 'p');          dom.appendChildNodes(para, list.tail(inlineSiblings));        }        return this.normalize();      };      /**       * insert node at current cursor       *       * @param {Node} node       * @return {Node}       */      this.insertNode = function (node) {        var rng = this.wrapBodyInlineWithPara().deleteContents();        var info = dom.splitPoint(rng.getStartPoint(), dom.isInline(node));        if (info.rightNode) {          info.rightNode.parentNode.insertBefore(node, info.rightNode);        } else {          info.container.appendChild(node);        }        return node;      };      /**       * insert html at current cursor       */      this.pasteHTML = function (markup) {        var contentsContainer = $('<div></div>').html(markup)[0];        var childNodes = list.from(contentsContainer.childNodes);        var rng = this.wrapBodyInlineWithPara().deleteContents();        return childNodes.reverse().map(function (childNode) {          return rng.insertNode(childNode);        }).reverse();      };        /**       * returns text in range       *       * @return {String}       */      this.toString = function () {        var nativeRng = nativeRange();        return agent.isW3CRangeSupport ? nativeRng.toString() : nativeRng.text;      };      /**       * returns range for word before cursor       *       * @param {Boolean} [findAfter] - find after cursor, default: false       * @return {WrappedRange}       */      this.getWordRange = function (findAfter) {        var endPoint = this.getEndPoint();        if (!dom.isCharPoint(endPoint)) {          return this;        }        var startPoint = dom.prevPointUntil(endPoint, function (point) {          return !dom.isCharPoint(point);        });        if (findAfter) {          endPoint = dom.nextPointUntil(endPoint, function (point) {            return !dom.isCharPoint(point);          });        }        return new WrappedRange(          startPoint.node,          startPoint.offset,          endPoint.node,          endPoint.offset        );      };        /**       * create offsetPath bookmark       *       * @param {Node} editable       */      this.bookmark = function (editable) {        return {          s: {            path: dom.makeOffsetPath(editable, sc),            offset: so          },          e: {            path: dom.makeOffsetPath(editable, ec),            offset: eo          }        };      };      /**       * create offsetPath bookmark base on paragraph       *       * @param {Node[]} paras       */      this.paraBookmark = function (paras) {        return {          s: {            path: list.tail(dom.makeOffsetPath(list.head(paras), sc)),            offset: so          },          e: {            path: list.tail(dom.makeOffsetPath(list.last(paras), ec)),            offset: eo          }        };      };      /**       * getClientRects       * @return {Rect[]}       */      this.getClientRects = function () {        var nativeRng = nativeRange();        return nativeRng.getClientRects();      };    };  /**   * @class core.range   *   * Data structure   *  * BoundaryPoint: a point of dom tree   *  * BoundaryPoints: two boundaryPoints corresponding to the start and the end of the Range   *   * See to http://www.w3.org/TR/DOM-Level-2-Traversal-Range/ranges.html#Level-2-Range-Position   *   * @singleton   * @alternateClassName range   */    return {      /**       * create Range Object From arguments or Browser Selection       *       * @param {Node} sc - start container       * @param {Number} so - start offset       * @param {Node} ec - end container       * @param {Number} eo - end offset       * @return {WrappedRange}       */      create: function (sc, so, ec, eo) {        if (arguments.length === 4) {          return new WrappedRange(sc, so, ec, eo);        } else if (arguments.length === 2) { //collapsed          ec = sc;          eo = so;          return new WrappedRange(sc, so, ec, eo);        } else {          var wrappedRange = this.createFromSelection();          if (!wrappedRange && arguments.length === 1) {            wrappedRange = this.createFromNode(arguments[0]);            return wrappedRange.collapse(dom.emptyPara === arguments[0].innerHTML);          }          return wrappedRange;        }      },      createFromSelection: function () {        var sc, so, ec, eo;        if (agent.isW3CRangeSupport) {          var selection = document.getSelection();          if (!selection || selection.rangeCount === 0) {            return null;          } else if (dom.isBody(selection.anchorNode)) {            // Firefox: returns entire body as range on initialization.            // We won't never need it.            return null;          }          var nativeRng = selection.getRangeAt(0);          sc = nativeRng.startContainer;          so = nativeRng.startOffset;          ec = nativeRng.endContainer;          eo = nativeRng.endOffset;        } else { // IE8: TextRange          var textRange = document.selection.createRange();          var textRangeEnd = textRange.duplicate();          textRangeEnd.collapse(false);          var textRangeStart = textRange;          textRangeStart.collapse(true);          var startPoint = textRangeToPoint(textRangeStart, true),          endPoint = textRangeToPoint(textRangeEnd, false);          // same visible point case: range was collapsed.          if (dom.isText(startPoint.node) && dom.isLeftEdgePoint(startPoint) &&              dom.isTextNode(endPoint.node) && dom.isRightEdgePoint(endPoint) &&              endPoint.node.nextSibling === startPoint.node) {            startPoint = endPoint;          }          sc = startPoint.cont;          so = startPoint.offset;          ec = endPoint.cont;          eo = endPoint.offset;        }        return new WrappedRange(sc, so, ec, eo);      },      /**       * @method        *        * create WrappedRange from node       *       * @param {Node} node       * @return {WrappedRange}       */      createFromNode: function (node) {        var sc = node;        var so = 0;        var ec = node;        var eo = dom.nodeLength(ec);        // browsers can't target a picture or void node        if (dom.isVoid(sc)) {          so = dom.listPrev(sc).length - 1;          sc = sc.parentNode;        }        if (dom.isBR(ec)) {          eo = dom.listPrev(ec).length - 1;          ec = ec.parentNode;        } else if (dom.isVoid(ec)) {          eo = dom.listPrev(ec).length;          ec = ec.parentNode;        }        return this.create(sc, so, ec, eo);      },      /**       * create WrappedRange from node after position       *       * @param {Node} node       * @return {WrappedRange}       */      createFromNodeBefore: function (node) {        return this.createFromNode(node).collapse(true);      },      /**       * create WrappedRange from node after position       *       * @param {Node} node       * @return {WrappedRange}       */      createFromNodeAfter: function (node) {        return this.createFromNode(node).collapse();      },      /**       * @method        *        * create WrappedRange from bookmark       *       * @param {Node} editable       * @param {Object} bookmark       * @return {WrappedRange}       */      createFromBookmark: function (editable, bookmark) {        var sc = dom.fromOffsetPath(editable, bookmark.s.path);        var so = bookmark.s.offset;        var ec = dom.fromOffsetPath(editable, bookmark.e.path);        var eo = bookmark.e.offset;        return new WrappedRange(sc, so, ec, eo);      },      /**       * @method        *       * create WrappedRange from paraBookmark       *       * @param {Object} bookmark       * @param {Node[]} paras       * @return {WrappedRange}       */      createFromParaBookmark: function (bookmark, paras) {        var so = bookmark.s.offset;        var eo = bookmark.e.offset;        var sc = dom.fromOffsetPath(list.head(paras), bookmark.s.path);        var ec = dom.fromOffsetPath(list.last(paras), bookmark.e.path);        return new WrappedRange(sc, so, ec, eo);      }    };  })();  /**   * @class core.async   *   * Async functions which returns `Promise`   *   * @singleton   * @alternateClassName async   */  var async = (function () {    /**     * @method readFileAsDataURL     *     * read contents of file as representing URL     *     * @param {File} file     * @return {Promise} - then: dataUrl     */    var readFileAsDataURL = function (file) {      return $.Deferred(function (deferred) {        $.extend(new FileReader(), {          onload: function (e) {            var dataURL = e.target.result;            deferred.resolve(dataURL);          },          onerror: function () {            deferred.reject(this);          }        }).readAsDataURL(file);      }).promise();    };      /**     * @method createImage     *     * create `<image>` from url string     *     * @param {String} url     * @return {Promise} - then: $image     */    var createImage = function (url) {      return $.Deferred(function (deferred) {        var $img = $('<img>');        $img.one('load', function () {          $img.off('error abort');          deferred.resolve($img);        }).one('error abort', function () {          $img.off('load').detach();          deferred.reject($img);        }).css({          display: 'none'        }).appendTo(document.body).attr('src', url);      }).promise();    };    return {      readFileAsDataURL: readFileAsDataURL,      createImage: createImage    };  })();  /**   * @class editing.History   *   * Editor History   *   */  var History = function ($editable) {    var stack = [], stackOffset = -1;    var editable = $editable[0];    var makeSnapshot = function () {      var rng = range.create(editable);      var emptyBookmark = {s: {path: [], offset: 0}, e: {path: [], offset: 0}};      return {        contents: $editable.html(),        bookmark: (rng ? rng.bookmark(editable) : emptyBookmark)      };    };    var applySnapshot = function (snapshot) {      if (snapshot.contents !== null) {        $editable.html(snapshot.contents);      }      if (snapshot.bookmark !== null) {        range.createFromBookmark(editable, snapshot.bookmark).select();      }    };    /**    * @method rewind    * Rewinds the history stack back to the first snapshot taken.    * Leaves the stack intact, so that "Redo" can still be used.    */    this.rewind = function () {      // Create snap shot if not yet recorded      if ($editable.html() !== stack[stackOffset].contents) {        this.recordUndo();      }      // Return to the first available snapshot.      stackOffset = 0;      // Apply that snapshot.      applySnapshot(stack[stackOffset]);    };    /**    * @method reset    * Resets the history stack completely; reverting to an empty editor.    */    this.reset = function () {      // Clear the stack.      stack = [];      // Restore stackOffset to its original value.      stackOffset = -1;      // Clear the editable area.      $editable.html('');      // Record our first snapshot (of nothing).      this.recordUndo();    };    /**     * undo     */    this.undo = function () {      // Create snap shot if not yet recorded      if ($editable.html() !== stack[stackOffset].contents) {        this.recordUndo();      }      if (0 < stackOffset) {        stackOffset--;        applySnapshot(stack[stackOffset]);      }    };    /**     * redo     */    this.redo = function () {      if (stack.length - 1 > stackOffset) {        stackOffset++;        applySnapshot(stack[stackOffset]);      }    };    /**     * recorded undo     */    this.recordUndo = function () {      stackOffset++;      // Wash out stack after stackOffset      if (stack.length > stackOffset) {        stack = stack.slice(0, stackOffset);      }      // Create new snapshot and push it to the end      stack.push(makeSnapshot());    };  };  /**   * @class editing.Style   *   * Style   *   */  var Style = function () {    /**     * @method jQueryCSS     *     * [workaround] for old jQuery     * passing an array of style properties to .css()     * will result in an object of property-value pairs.     * (compability with version < 1.9)     *     * @private     * @param  {jQuery} $obj     * @param  {Array} propertyNames - An array of one or more CSS properties.     * @return {Object}     */    var jQueryCSS = function ($obj, propertyNames) {      if (agent.jqueryVersion < 1.9) {        var result = {};        $.each(propertyNames, function (idx, propertyName) {          result[propertyName] = $obj.css(propertyName);        });        return result;      }      return $obj.css.call($obj, propertyNames);    };    /**     * returns style object from node     *     * @param {jQuery} $node     * @return {Object}     */    this.fromNode = function ($node) {      var properties = ['font-family', 'font-size', 'text-align', 'list-style-type', 'line-height'];      var styleInfo = jQueryCSS($node, properties) || {};      styleInfo['font-size'] = parseInt(styleInfo['font-size'], 10);      return styleInfo;    };    /**     * paragraph level style     *     * @param {WrappedRange} rng     * @param {Object} styleInfo     */    this.stylePara = function (rng, styleInfo) {      $.each(rng.nodes(dom.isPara, {        includeAncestor: true      }), function (idx, para) {        $(para).css(styleInfo);      });    };    /**     * insert and returns styleNodes on range.     *     * @param {WrappedRange} rng     * @param {Object} [options] - options for styleNodes     * @param {String} [options.nodeName] - default: `SPAN`     * @param {Boolean} [options.expandClosestSibling] - default: `false`     * @param {Boolean} [options.onlyPartialContains] - default: `false`     * @return {Node[]}     */    this.styleNodes = function (rng, options) {      rng = rng.splitText();      var nodeName = options && options.nodeName || 'SPAN';      var expandClosestSibling = !!(options && options.expandClosestSibling);      var onlyPartialContains = !!(options && options.onlyPartialContains);      if (rng.isCollapsed()) {        return [rng.insertNode(dom.create(nodeName))];      }      var pred = dom.makePredByNodeName(nodeName);      var nodes = rng.nodes(dom.isText, {        fullyContains: true      }).map(function (text) {        return dom.singleChildAncestor(text, pred) || dom.wrap(text, nodeName);      });      if (expandClosestSibling) {        if (onlyPartialContains) {          var nodesInRange = rng.nodes();          // compose with partial contains predication          pred = func.and(pred, function (node) {            return list.contains(nodesInRange, node);          });        }        return nodes.map(function (node) {          var siblings = dom.withClosestSiblings(node, pred);          var head = list.head(siblings);          var tails = list.tail(siblings);          $.each(tails, function (idx, elem) {            dom.appendChildNodes(head, elem.childNodes);            dom.remove(elem);          });          return list.head(siblings);        });      } else {        return nodes;      }    };    /**     * get current style on cursor     *     * @param {WrappedRange} rng     * @return {Object} - object contains style properties.     */    this.current = function (rng) {      var $cont = $(!dom.isElement(rng.sc) ? rng.sc.parentNode : rng.sc);      var styleInfo = this.fromNode($cont);      // document.queryCommandState for toggle state      // [workaround] prevent Firefox nsresult: "0x80004005 (NS_ERROR_FAILURE)"      try {        styleInfo = $.extend(styleInfo, {          'font-bold': document.queryCommandState('bold') ? 'bold' : 'normal',          'font-italic': document.queryCommandState('italic') ? 'italic' : 'normal',          'font-underline': document.queryCommandState('underline') ? 'underline' : 'normal',          'font-subscript': document.queryCommandState('subscript') ? 'subscript' : 'normal',          'font-superscript': document.queryCommandState('superscript') ? 'superscript' : 'normal',          'font-strikethrough': document.queryCommandState('strikethrough') ? 'strikethrough' : 'normal'        });      } catch (e) {}      // list-style-type to list-style(unordered, ordered)      if (!rng.isOnList()) {        styleInfo['list-style'] = 'none';      } else {        var orderedTypes = ['circle', 'disc', 'disc-leading-zero', 'square'];        var isUnordered = $.inArray(styleInfo['list-style-type'], orderedTypes) > -1;        styleInfo['list-style'] = isUnordered ? 'unordered' : 'ordered';      }      var para = dom.ancestor(rng.sc, dom.isPara);      if (para && para.style['line-height']) {        styleInfo['line-height'] = para.style.lineHeight;      } else {        var lineHeight = parseInt(styleInfo['line-height'], 10) / parseInt(styleInfo['font-size'], 10);        styleInfo['line-height'] = lineHeight.toFixed(1);      }      styleInfo.anchor = rng.isOnAnchor() && dom.ancestor(rng.sc, dom.isAnchor);      styleInfo.ancestors = dom.listAncestor(rng.sc, dom.isEditable);      styleInfo.range = rng;      return styleInfo;    };  };  /**   * @class editing.Bullet   *   * @alternateClassName Bullet   */  var Bullet = function () {    var self = this;    /**     * toggle ordered list     */    this.insertOrderedList = function (editable) {      this.toggleList('OL', editable);    };    /**     * toggle unordered list     */    this.insertUnorderedList = function (editable) {      this.toggleList('UL', editable);    };    /**     * indent     */    this.indent = function (editable) {      var self = this;      var rng = range.create(editable).wrapBodyInlineWithPara();      var paras = rng.nodes(dom.isPara, { includeAncestor: true });      var clustereds = list.clusterBy(paras, func.peq2('parentNode'));      $.each(clustereds, function (idx, paras) {        var head = list.head(paras);        if (dom.isLi(head)) {          self.wrapList(paras, head.parentNode.nodeName);        } else {          $.each(paras, function (idx, para) {            $(para).css('marginLeft', function (idx, val) {              return (parseInt(val, 10) || 0) + 25;            });          });        }      });      rng.select();    };    /**     * outdent     */    this.outdent = function (editable) {      var self = this;      var rng = range.create(editable).wrapBodyInlineWithPara();      var paras = rng.nodes(dom.isPara, { includeAncestor: true });      var clustereds = list.clusterBy(paras, func.peq2('parentNode'));      $.each(clustereds, function (idx, paras) {        var head = list.head(paras);        if (dom.isLi(head)) {          self.releaseList([paras]);        } else {          $.each(paras, function (idx, para) {            $(para).css('marginLeft', function (idx, val) {              val = (parseInt(val, 10) || 0);              return val > 25 ? val - 25 : '';            });          });        }      });      rng.select();    };    /**     * toggle list     *     * @param {String} listName - OL or UL     */    this.toggleList = function (listName, editable) {      var rng = range.create(editable).wrapBodyInlineWithPara();      var paras = rng.nodes(dom.isPara, { includeAncestor: true });      var bookmark = rng.paraBookmark(paras);      var clustereds = list.clusterBy(paras, func.peq2('parentNode'));      // paragraph to list      if (list.find(paras, dom.isPurePara)) {        var wrappedParas = [];        $.each(clustereds, function (idx, paras) {          wrappedParas = wrappedParas.concat(self.wrapList(paras, listName));        });        paras = wrappedParas;      // list to paragraph or change list style      } else {        var diffLists = rng.nodes(dom.isList, {          includeAncestor: true        }).filter(function (listNode) {          return !$.nodeName(listNode, listName);        });        if (diffLists.length) {          $.each(diffLists, function (idx, listNode) {            dom.replace(listNode, listName);          });        } else {          paras = this.releaseList(clustereds, true);        }      }      range.createFromParaBookmark(bookmark, paras).select();    };    /**     * @param {Node[]} paras     * @param {String} listName     * @return {Node[]}     */    this.wrapList = function (paras, listName) {      var head = list.head(paras);      var last = list.last(paras);      var prevList = dom.isList(head.previousSibling) && head.previousSibling;      var nextList = dom.isList(last.nextSibling) && last.nextSibling;      var listNode = prevList || dom.insertAfter(dom.create(listName || 'UL'), last);      // P to LI      paras = paras.map(function (para) {        return dom.isPurePara(para) ? dom.replace(para, 'LI') : para;      });      // append to list(<ul>, <ol>)      dom.appendChildNodes(listNode, paras);      if (nextList) {        dom.appendChildNodes(listNode, list.from(nextList.childNodes));        dom.remove(nextList);      }      return paras;    };    /**     * @method releaseList     *     * @param {Array[]} clustereds     * @param {Boolean} isEscapseToBody     * @return {Node[]}     */    this.releaseList = function (clustereds, isEscapseToBody) {      var releasedParas = [];      $.each(clustereds, function (idx, paras) {        var head = list.head(paras);        var last = list.last(paras);        var headList = isEscapseToBody ? dom.lastAncestor(head, dom.isList) :                                         head.parentNode;        var lastList = headList.childNodes.length > 1 ? dom.splitTree(headList, {          node: last.parentNode,          offset: dom.position(last) + 1        }, {          isSkipPaddingBlankHTML: true        }) : null;        var middleList = dom.splitTree(headList, {          node: head.parentNode,          offset: dom.position(head)        }, {          isSkipPaddingBlankHTML: true        });        paras = isEscapseToBody ? dom.listDescendant(middleList, dom.isLi) :                                  list.from(middleList.childNodes).filter(dom.isLi);        // LI to P        if (isEscapseToBody || !dom.isList(headList.parentNode)) {          paras = paras.map(function (para) {            return dom.replace(para, 'P');          });        }        $.each(list.from(paras).reverse(), function (idx, para) {          dom.insertAfter(para, headList);        });        // remove empty lists        var rootLists = list.compact([headList, middleList, lastList]);        $.each(rootLists, function (idx, rootList) {          var listNodes = [rootList].concat(dom.listDescendant(rootList, dom.isList));          $.each(listNodes.reverse(), function (idx, listNode) {            if (!dom.nodeLength(listNode)) {              dom.remove(listNode, true);            }          });        });        releasedParas = releasedParas.concat(paras);      });      return releasedParas;    };  };  /**   * @class editing.Typing   *   * Typing   *   */  var Typing = function () {    // a Bullet instance to toggle lists off    var bullet = new Bullet();    /**     * insert tab     *     * @param {WrappedRange} rng     * @param {Number} tabsize     */    this.insertTab = function (rng, tabsize) {      var tab = dom.createText(new Array(tabsize + 1).join(dom.NBSP_CHAR));      rng = rng.deleteContents();      rng.insertNode(tab, true);      rng = range.create(tab, tabsize);      rng.select();    };    /**     * insert paragraph     */    this.insertParagraph = function (editable) {      var rng = range.create(editable);      // deleteContents on range.      rng = rng.deleteContents();      // Wrap range if it needs to be wrapped by paragraph      rng = rng.wrapBodyInlineWithPara();      // finding paragraph      var splitRoot = dom.ancestor(rng.sc, dom.isPara);      var nextPara;      // on paragraph: split paragraph      if (splitRoot) {        // if it is an empty line with li        if (dom.isEmpty(splitRoot) && dom.isLi(splitRoot)) {          // toogle UL/OL and escape          bullet.toggleList(splitRoot.parentNode.nodeName);          return;        // if it is an empty line with para on blockquote        } else if (dom.isEmpty(splitRoot) && dom.isPara(splitRoot) && dom.isBlockquote(splitRoot.parentNode)) {          // escape blockquote          dom.insertAfter(splitRoot, splitRoot.parentNode);          nextPara = splitRoot;        // if new line has content (not a line break)        } else {          nextPara = dom.splitTree(splitRoot, rng.getStartPoint());          var emptyAnchors = dom.listDescendant(splitRoot, dom.isEmptyAnchor);          emptyAnchors = emptyAnchors.concat(dom.listDescendant(nextPara, dom.isEmptyAnchor));          $.each(emptyAnchors, function (idx, anchor) {            dom.remove(anchor);          });          // replace empty heading or pre with P tag          if ((dom.isHeading(nextPara) || dom.isPre(nextPara)) && dom.isEmpty(nextPara)) {            nextPara = dom.replace(nextPara, 'p');          }        }      // no paragraph: insert empty paragraph      } else {        var next = rng.sc.childNodes[rng.so];        nextPara = $(dom.emptyPara)[0];        if (next) {          rng.sc.insertBefore(nextPara, next);        } else {          rng.sc.appendChild(nextPara);        }      }      range.create(nextPara, 0).normalize().select().scrollIntoView(editable);    };  };  /**   * @class editing.Table   *   * Table   *   */  var Table = function () {    /**     * handle tab key     *     * @param {WrappedRange} rng     * @param {Boolean} isShift     */    this.tab = function (rng, isShift) {      var cell = dom.ancestor(rng.commonAncestor(), dom.isCell);      var table = dom.ancestor(cell, dom.isTable);      var cells = dom.listDescendant(table, dom.isCell);      var nextCell = list[isShift ? 'prev' : 'next'](cells, cell);      if (nextCell) {        range.create(nextCell, 0).select();      }    };    /**     * create empty table element     *     * @param {Number} rowCount     * @param {Number} colCount     * @return {Node}     */    this.createTable = function (colCount, rowCount, options) {      var tds = [], tdHTML;      for (var idxCol = 0; idxCol < colCount; idxCol++) {        tds.push('<td>' + dom.blank + '</td>');      }      tdHTML = tds.join('');      var trs = [], trHTML;      for (var idxRow = 0; idxRow < rowCount; idxRow++) {        trs.push('<tr>' + tdHTML + '</tr>');      }      trHTML = trs.join('');      var $table = $('<table>' + trHTML + '</table>');      if (options && options.tableClassName) {        $table.addClass(options.tableClassName);      }      return $table[0];    };  };  var KEY_BOGUS = 'bogus';  /**   * @class Editor   */  var Editor = function (context) {    var self = this;    var $note = context.layoutInfo.note;    var $editor = context.layoutInfo.editor;    var $editable = context.layoutInfo.editable;    var options = context.options;    var lang = options.langInfo;    var editable = $editable[0];    var lastRange = null;    var style = new Style();    var table = new Table();    var typing = new Typing();    var bullet = new Bullet();    var history = new History($editable);    this.initialize = function () {      // bind custom events      $editable.on('keydown', function (event) {        if (event.keyCode === key.code.ENTER) {          context.triggerEvent('enter', event);        }        context.triggerEvent('keydown', event);        if (options.shortcuts && !event.isDefaultPrevented()) {          self.handleKeyMap(event);        }      }).on('keyup', function (event) {        context.triggerEvent('keyup', event);      }).on('focus', function (event) {        context.triggerEvent('focus', event);      }).on('blur', function (event) {        context.triggerEvent('blur', event);      }).on('mousedown', function (event) {        context.triggerEvent('mousedown', event);      }).on('mouseup', function (event) {        context.triggerEvent('mouseup', event);      }).on('scroll', function (event) {        context.triggerEvent('scroll', event);      }).on('paste', function (event) {        context.triggerEvent('paste', event);      });      // init content before set event      $editable.html(dom.html($note) || dom.emptyPara);      // [workaround] IE doesn't have input events for contentEditable      // - see: https://goo.gl/4bfIvA      var changeEventName = agent.isMSIE ? 'DOMCharacterDataModified DOMSubtreeModified DOMNodeInserted' : 'input';      $editable.on(changeEventName, function () {        context.triggerEvent('change', $editable.html());      });      $editor.on('focusin', function (event) {        context.triggerEvent('focusin', event);      }).on('focusout', function (event) {        context.triggerEvent('focusout', event);      });      if (!options.airMode && options.height) {        this.setHeight(options.height);      }      if (!options.airMode && options.maxHeight) {        $editable.css('max-height', options.maxHeight);      }      if (!options.airMode && options.minHeight) {        $editable.css('min-height', options.minHeight);      }      history.recordUndo();    };    this.destroy = function () {      $editable.off();    };    this.handleKeyMap = function (event) {      var keyMap = options.keyMap[agent.isMac ? 'mac' : 'pc'];      var keys = [];      if (event.metaKey) { keys.push('CMD'); }      if (event.ctrlKey && !event.altKey) { keys.push('CTRL'); }      if (event.shiftKey) { keys.push('SHIFT'); }      var keyName = key.nameFromCode[event.keyCode];      if (keyName) {        keys.push(keyName);      }      var eventName = keyMap[keys.join('+')];      if (eventName) {        event.preventDefault();        context.invoke(eventName);      } else if (key.isEdit(event.keyCode)) {        this.afterCommand();      }    };    /**     * create range     * @return {WrappedRange}     */    this.createRange = function () {      this.focus();      return range.create(editable);    };    /**     * saveRange     *     * save current range     *     * @param {Boolean} [thenCollapse=false]     */    this.saveRange = function (thenCollapse) {      lastRange = this.createRange();      if (thenCollapse) {        lastRange.collapse().select();      }    };    /**     * restoreRange     *     * restore lately range     */    this.restoreRange = function () {      if (lastRange) {        lastRange.select();        this.focus();      }    };    this.saveTarget = function (node) {      $editable.data('target', node);    };    this.clearTarget = function () {      $editable.removeData('target');    };    this.restoreTarget = function () {      return $editable.data('target');    };    /**     * currentStyle     *     * current style     * @return {Object|Boolean} unfocus     */    this.currentStyle = function () {      var rng = range.create();      if (rng) {        rng = rng.normalize();      }      return rng ? style.current(rng) : style.fromNode($editable);    };    /**     * style from node     *     * @param {jQuery} $node     * @return {Object}     */    this.styleFromNode = function ($node) {      return style.fromNode($node);    };    /**     * undo     */    this.undo = function () {      context.triggerEvent('before.command', $editable.html());      history.undo();      context.triggerEvent('change', $editable.html());    };    context.memo('help.undo', lang.help.undo);    /**     * redo     */    this.redo = function () {      context.triggerEvent('before.command', $editable.html());      history.redo();      context.triggerEvent('change', $editable.html());    };    context.memo('help.redo', lang.help.redo);    /**     * before command     */    var beforeCommand = this.beforeCommand = function () {      context.triggerEvent('before.command', $editable.html());      // keep focus on editable before command execution      self.focus();    };    /**     * after command     * @param {Boolean} isPreventTrigger     */    var afterCommand = this.afterCommand = function (isPreventTrigger) {      history.recordUndo();      if (!isPreventTrigger) {        context.triggerEvent('change', $editable.html());      }    };    /* jshint ignore:start */    // native commands(with execCommand), generate function for execCommand    var commands = ['bold', 'italic', 'underline', 'strikethrough', 'superscript', 'subscript',                    'justifyLeft', 'justifyCenter', 'justifyRight', 'justifyFull',                    'formatBlock', 'removeFormat',                    'backColor', 'foreColor', 'fontName'];    for (var idx = 0, len = commands.length; idx < len; idx ++) {      this[commands[idx]] = (function (sCmd) {        return function (value) {          beforeCommand();          document.execCommand(sCmd, false, value);          afterCommand(true);        };      })(commands[idx]);      context.memo('help.' + commands[idx], lang.help[commands[idx]]);    }    /* jshint ignore:end */    /**     * handle tab key     */    this.tab = function () {      var rng = this.createRange();      if (rng.isCollapsed() && rng.isOnCell()) {        table.tab(rng);      } else {        beforeCommand();        typing.insertTab(rng, options.tabSize);        afterCommand();      }    };    context.memo('help.tab', lang.help.tab);    /**     * handle shift+tab key     */    this.untab = function () {      var rng = this.createRange();      if (rng.isCollapsed() && rng.isOnCell()) {        table.tab(rng, true);      }    };    context.memo('help.untab', lang.help.untab);    /**     * run given function between beforeCommand and afterCommand     */    this.wrapCommand = function (fn) {      return function () {        beforeCommand();        fn.apply(self, arguments);        afterCommand();      };    };    /**     * insert paragraph     */    this.insertParagraph = this.wrapCommand(function () {      typing.insertParagraph(editable);    });    context.memo('help.insertParagraph', lang.help.insertParagraph);    this.insertOrderedList = this.wrapCommand(function () {      bullet.insertOrderedList(editable);    });    context.memo('help.insertOrderedList', lang.help.insertOrderedList);    this.insertUnorderedList = this.wrapCommand(function () {      bullet.insertUnorderedList(editable);    });    context.memo('help.insertUnorderedList', lang.help.insertUnorderedList);    this.indent = this.wrapCommand(function () {      bullet.indent(editable);    });    context.memo('help.indent', lang.help.indent);    this.outdent = this.wrapCommand(function () {      bullet.outdent(editable);    });    context.memo('help.outdent', lang.help.outdent);    /**     * insert image     *     * @param {String} src     * @param {String|Function} param     * @return {Promise}     */    this.insertImage = function (src, param) {      return async.createImage(src, param).then(function ($image) {        beforeCommand();        if (typeof param === 'function') {          param($image);        } else {          if (typeof param === 'string') {            $image.attr('data-filename', param);          }          $image.css('width', Math.min($editable.width(), $image.width()));        }        $image.show();        range.create(editable).insertNode($image[0]);        range.createFromNodeAfter($image[0]).select();        afterCommand();      }).fail(function (e) {        context.triggerEvent('image.upload.error', e);      });    };    /**     * insertImages     * @param {File[]} files     */    this.insertImages = function (files) {      $.each(files, function (idx, file) {        var filename = file.name;        if (options.maximumImageFileSize && options.maximumImageFileSize < file.size) {          context.triggerEvent('image.upload.error', lang.image.maximumFileSizeError);        } else {          async.readFileAsDataURL(file).then(function (dataURL) {            return self.insertImage(dataURL, filename);          }).fail(function () {            context.triggerEvent('image.upload.error');          });        }      });    };    /**     * insertImagesOrCallback     * @param {File[]} files     */    this.insertImagesOrCallback = function (files) {      var callbacks = options.callbacks;      // If onImageUpload options setted      if (callbacks.onImageUpload) {        context.triggerEvent('image.upload', files);      // else insert Image as dataURL      } else {        this.insertImages(files);      }    };    /**     * insertNode     * insert node     * @param {Node} node     */    this.insertNode = this.wrapCommand(function (node) {      var rng = this.createRange();      rng.insertNode(node);      range.createFromNodeAfter(node).select();    });    /**     * insert text     * @param {String} text     */    this.insertText = this.wrapCommand(function (text) {      var rng = this.createRange();      var textNode = rng.insertNode(dom.createText(text));      range.create(textNode, dom.nodeLength(textNode)).select();    });    /**     * return selected plain text     * @return {String} text     */    this.getSelectedText = function () {      var rng = this.createRange();      // if range on anchor, expand range with anchor      if (rng.isOnAnchor()) {        rng = range.createFromNode(dom.ancestor(rng.sc, dom.isAnchor));      }      return rng.toString();    };    /**     * paste HTML     * @param {String} markup     */    this.pasteHTML = this.wrapCommand(function (markup) {      var contents = this.createRange().pasteHTML(markup);      range.createFromNodeAfter(list.last(contents)).select();    });    /**     * formatBlock     *     * @param {String} tagName     */    this.formatBlock = this.wrapCommand(function (tagName) {      // [workaround] for MSIE, IE need `<`      tagName = agent.isMSIE ? '<' + tagName + '>' : tagName;      document.execCommand('FormatBlock', false, tagName);    });    this.formatPara = function () {      this.formatBlock('P');    };    context.memo('help.formatPara', lang.help.formatPara);    /* jshint ignore:start */    for (var idx = 1; idx <= 6; idx ++) {      this['formatH' + idx] = function (idx) {        return function () {          this.formatBlock('H' + idx);        };      }(idx);      context.memo('help.formatH'+idx, lang.help['formatH' + idx]);    };    /* jshint ignore:end */    /**     * fontSize     *     * @param {String} value - px     */    this.fontSize = function (value) {      var rng = this.createRange();      if (rng && rng.isCollapsed()) {        var spans = style.styleNodes(rng);        var firstSpan = list.head(spans);        $(spans).css({          'font-size': value + 'px'        });        // [workaround] added styled bogus span for style        //  - also bogus character needed for cursor position        if (firstSpan && !dom.nodeLength(firstSpan)) {          firstSpan.innerHTML = dom.ZERO_WIDTH_NBSP_CHAR;          range.createFromNodeAfter(firstSpan.firstChild).select();          $editable.data(KEY_BOGUS, firstSpan);        }      } else {        beforeCommand();        $(style.styleNodes(rng)).css({          'font-size': value + 'px'        });        afterCommand();      }    };    /**     * insert horizontal rule     */    this.insertHorizontalRule = this.wrapCommand(function () {      var hrNode = this.createRange().insertNode(dom.create('HR'));      if (hrNode.nextSibling) {        range.create(hrNode.nextSibling, 0).normalize().select();      }    });    context.memo('help.insertHorizontalRule', lang.help.insertHorizontalRule);    /**     * remove bogus node and character     */    this.removeBogus = function () {      var bogusNode = $editable.data(KEY_BOGUS);      if (!bogusNode) {        return;      }      var textNode = list.find(list.from(bogusNode.childNodes), dom.isText);      var bogusCharIdx = textNode.nodeValue.indexOf(dom.ZERO_WIDTH_NBSP_CHAR);      if (bogusCharIdx !== -1) {        textNode.deleteData(bogusCharIdx, 1);      }      if (dom.isEmpty(bogusNode)) {        dom.remove(bogusNode);      }      $editable.removeData(KEY_BOGUS);    };    /**     * lineHeight     * @param {String} value     */    this.lineHeight = this.wrapCommand(function (value) {      style.stylePara(this.createRange(), {        lineHeight: value      });    });    /**     * unlink     *     * @type command     */    this.unlink = function () {      var rng = this.createRange();      if (rng.isOnAnchor()) {        var anchor = dom.ancestor(rng.sc, dom.isAnchor);        rng = range.createFromNode(anchor);        rng.select();        beforeCommand();        document.execCommand('unlink');        afterCommand();      }    };    /**     * create link (command)     *     * @param {Object} linkInfo     */    this.createLink = this.wrapCommand(function (linkInfo) {      var linkUrl = linkInfo.url;      var linkText = linkInfo.text;      var isNewWindow = linkInfo.isNewWindow;      var rng = linkInfo.range || this.createRange();      var isTextChanged = rng.toString() !== linkText;      if (options.onCreateLink) {        linkUrl = options.onCreateLink(linkUrl);      }      var anchors = [];      if (isTextChanged) {        rng = rng.deleteContents();        var anchor = rng.insertNode($('<A>' + linkText + '</A>')[0]);        anchors.push(anchor);      } else {        anchors = style.styleNodes(rng, {          nodeName: 'A',          expandClosestSibling: true,          onlyPartialContains: true        });      }      $.each(anchors, function (idx, anchor) {        $(anchor).attr('href', linkUrl);        if (isNewWindow) {          $(anchor).attr('target', '_blank');        } else {          $(anchor).removeAttr('target');        }      });      var startRange = range.createFromNodeBefore(list.head(anchors));      var startPoint = startRange.getStartPoint();      var endRange = range.createFromNodeAfter(list.last(anchors));      var endPoint = endRange.getEndPoint();      range.create(        startPoint.node,        startPoint.offset,        endPoint.node,        endPoint.offset      ).select();    });    /**     * returns link info     *     * @return {Object}     * @return {WrappedRange} return.range     * @return {String} return.text     * @return {Boolean} [return.isNewWindow=true]     * @return {String} [return.url=""]     */    this.getLinkInfo = function () {      var rng = this.createRange().expand(dom.isAnchor);      // Get the first anchor on range(for edit).      var $anchor = $(list.head(rng.nodes(dom.isAnchor)));      return {        range: rng,        text: rng.toString(),        isNewWindow: $anchor.length ? $anchor.attr('target') === '_blank' : false,        url: $anchor.length ? $anchor.attr('href') : ''      };    };    /**     * setting color     *     * @param {Object} sObjColor  color code     * @param {String} sObjColor.foreColor foreground color     * @param {String} sObjColor.backColor background color     */    this.color = this.wrapCommand(function (colorInfo) {      var foreColor = colorInfo.foreColor;      var backColor = colorInfo.backColor;      if (foreColor) { document.execCommand('foreColor', false, foreColor); }      if (backColor) { document.execCommand('backColor', false, backColor); }    });    /**     * insert Table     *     * @param {String} dimension of table (ex : "5x5")     */    this.insertTable = this.wrapCommand(function (dim) {      var dimension = dim.split('x');      var rng = this.createRange().deleteContents();      rng.insertNode(table.createTable(dimension[0], dimension[1], options));    });    /**     * float me     *     * @param {String} value     */    this.floatMe = this.wrapCommand(function (value) {      var $target = $(this.restoreTarget());      $target.css('float', value);    });    /**     * resize overlay element     * @param {String} value     */    this.resize = this.wrapCommand(function (value) {      var $target = $(this.restoreTarget());      $target.css({        width: value * 100 + '%',        height: ''      });    });    /**     * @param {Position} pos     * @param {jQuery} $target - target element     * @param {Boolean} [bKeepRatio] - keep ratio     */    this.resizeTo = function (pos, $target, bKeepRatio) {      var imageSize;      if (bKeepRatio) {        var newRatio = pos.y / pos.x;        var ratio = $target.data('ratio');        imageSize = {          width: ratio > newRatio ? pos.x : pos.y / ratio,          height: ratio > newRatio ? pos.x * ratio : pos.y        };      } else {        imageSize = {          width: pos.x,          height: pos.y        };      }      $target.css(imageSize);    };    /**     * remove media object     */    this.removeMedia = this.wrapCommand(function () {      var $target = $(this.restoreTarget()).detach();      context.triggerEvent('media.delete', $target, $editable);    });    /**     * returns whether editable area has focus or not.     */    this.hasFocus = function () {      return $editable.is(':focus');    };    /**     * set focus     */    this.focus = function () {      // [workaround] Screen will move when page is scolled in IE.      //  - do focus when not focused      if (!this.hasFocus()) {        $editable.focus();      }    };    /**     * returns whether contents is empty or not.     * @return {Boolean}     */    this.isEmpty = function () {      return dom.isEmpty($editable[0]) || dom.emptyPara === $editable.html();    };    /**     * Removes all contents and restores the editable instance to an _emptyPara_.     */    this.empty = function () {      context.invoke('code', dom.emptyPara);    };    /**     * set height for editable     */    this.setHeight = function (height) {      $editable.outerHeight(height);    };  };  var Clipboard = function (context) {    var self = this;    var $editable = context.layoutInfo.editable;    this.events = {      'summernote.keydown': function (we, e) {        if (self.needKeydownHook()) {          if ((e.ctrlKey || e.metaKey) && e.keyCode === key.code.V) {            context.invoke('editor.saveRange');            self.$paste.focus();            setTimeout(function () {              self.pasteByHook();            }, 0);          }        }      }    };    this.needKeydownHook = function () {      return (agent.isMSIE && agent.browserVersion > 10) || agent.isFF;    };    this.initialize = function () {      // [workaround] getting image from clipboard      //  - IE11 and Firefox: CTRL+v hook      //  - Webkit: event.clipboardData      if (this.needKeydownHook()) {        this.$paste = $('<div />').attr('contenteditable', true).css({          position: 'absolute',          left: -100000,          opacity: 0        });        $editable.before(this.$paste);        this.$paste.on('paste', function (event) {          context.triggerEvent('paste', event);        });      } else {        $editable.on('paste', this.pasteByEvent);      }    };    this.destroy = function () {      if (this.needKeydownHook()) {        this.$paste.remove();        this.$paste = null;      }    };    this.pasteByHook = function () {      var node = this.$paste[0].firstChild;      if (dom.isImg(node)) {        var dataURI = node.src;        var decodedData = atob(dataURI.split(',')[1]);        var array = new Uint8Array(decodedData.length);        for (var i = 0; i < decodedData.length; i++) {          array[i] = decodedData.charCodeAt(i);        }        var blob = new Blob([array], { type: 'image/png' });        blob.name = 'clipboard.png';        context.invoke('editor.restoreRange');        context.invoke('editor.focus');        context.invoke('editor.insertImagesOrCallback', [blob]);      } else {        var pasteContent = $('<div />').html(this.$paste.html()).html();        context.invoke('editor.restoreRange');        context.invoke('editor.focus');        if (pasteContent) {          context.invoke('editor.pasteHTML', pasteContent);        }      }      this.$paste.empty();    };    /**     * paste by clipboard event     *     * @param {Event} event     */    this.pasteByEvent = function (event) {      var clipboardData = event.originalEvent.clipboardData;      if (clipboardData && clipboardData.items && clipboardData.items.length) {        var item = list.head(clipboardData.items);        if (item.kind === 'file' && item.type.indexOf('image/') !== -1) {          context.invoke('editor.insertImagesOrCallback', [item.getAsFile()]);        }        context.invoke('editor.afterCommand');      }    };  };  var Dropzone = function (context) {    var $document = $(document);    var $editor = context.layoutInfo.editor;    var $editable = context.layoutInfo.editable;    var options = context.options;    var lang = options.langInfo;    var $dropzone = $([      '<div class="note-dropzone">',      '  <div class="note-dropzone-message"/>',      '</div>'    ].join('')).prependTo($editor);    /**     * attach Drag and Drop Events     */    this.initialize = function () {      if (options.disableDragAndDrop) {        // prevent default drop event        $document.on('drop', function (e) {          e.preventDefault();        });      } else {        this.attachDragAndDropEvent();      }    };    /**     * attach Drag and Drop Events     */    this.attachDragAndDropEvent = function () {      var collection = $(),          $dropzoneMessage = $dropzone.find('.note-dropzone-message');      // show dropzone on dragenter when dragging a object to document      // -but only if the editor is visible, i.e. has a positive width and height      $document.on('dragenter', function (e) {        var isCodeview = context.invoke('codeview.isActivated');        var hasEditorSize = $editor.width() > 0 && $editor.height() > 0;        if (!isCodeview && !collection.length && hasEditorSize) {          $editor.addClass('dragover');          $dropzone.width($editor.width());          $dropzone.height($editor.height());          $dropzoneMessage.text(lang.image.dragImageHere);        }        collection = collection.add(e.target);      }).on('dragleave', function (e) {        collection = collection.not(e.target);        if (!collection.length) {          $editor.removeClass('dragover');        }      }).on('drop', function () {        collection = $();        $editor.removeClass('dragover');      });      // change dropzone's message on hover.      $dropzone.on('dragenter', function () {        $dropzone.addClass('hover');        $dropzoneMessage.text(lang.image.dropImage);      }).on('dragleave', function () {        $dropzone.removeClass('hover');        $dropzoneMessage.text(lang.image.dragImageHere);      });      // attach dropImage      $dropzone.on('drop', function (event) {        var dataTransfer = event.originalEvent.dataTransfer;        if (dataTransfer && dataTransfer.files && dataTransfer.files.length) {          event.preventDefault();          $editable.focus();          context.invoke('editor.insertImagesOrCallback', dataTransfer.files);        } else {          $.each(dataTransfer.types, function (idx, type) {            var content = dataTransfer.getData(type);            if (type.toLowerCase().indexOf('text') > -1) {              context.invoke('editor.pasteHTML', content);            } else {              $(content).each(function () {                context.invoke('editor.insertNode', this);              });            }          });        }      }).on('dragover', false); // prevent default dragover event    };  };  var CodeMirror;  if (agent.hasCodeMirror) {    if (agent.isSupportAmd) {      require(['codemirror'], function (cm) {        CodeMirror = cm;      });    } else {      CodeMirror = window.CodeMirror;    }  }  /**   * @class Codeview   */  var Codeview = function (context) {    var $editor = context.layoutInfo.editor;    var $editable = context.layoutInfo.editable;    var $codable = context.layoutInfo.codable;    var options = context.options;    this.sync = function () {      var isCodeview = this.isActivated();      if (isCodeview && agent.hasCodeMirror) {        $codable.data('cmEditor').save();      }    };    /**     * @return {Boolean}     */    this.isActivated = function () {      return $editor.hasClass('codeview');    };    /**     * toggle codeview     */    this.toggle = function () {      if (this.isActivated()) {        this.deactivate();      } else {        this.activate();      }      context.triggerEvent('codeview.toggled');    };    /**     * activate code view     */    this.activate = function () {      $codable.val(dom.html($editable, options.prettifyHtml));      $codable.height($editable.height());      context.invoke('toolbar.updateCodeview', true);      $editor.addClass('codeview');      $codable.focus();      // activate CodeMirror as codable      if (agent.hasCodeMirror) {        var cmEditor = CodeMirror.fromTextArea($codable[0], options.codemirror);        // CodeMirror TernServer        if (options.codemirror.tern) {          var server = new CodeMirror.TernServer(options.codemirror.tern);          cmEditor.ternServer = server;          cmEditor.on('cursorActivity', function (cm) {            server.updateArgHints(cm);          });        }        // CodeMirror hasn't Padding.        cmEditor.setSize(null, $editable.outerHeight());        $codable.data('cmEditor', cmEditor);      }    };    /**     * deactivate code view     */    this.deactivate = function () {      // deactivate CodeMirror as codable      if (agent.hasCodeMirror) {        var cmEditor = $codable.data('cmEditor');        $codable.val(cmEditor.getValue());        cmEditor.toTextArea();      }      var value = dom.value($codable, options.prettifyHtml) || dom.emptyPara;      var isChange = $editable.html() !== value;      $editable.html(value);      $editable.height(options.height ? $codable.height() : 'auto');      $editor.removeClass('codeview');      if (isChange) {        context.triggerEvent('change', $editable.html(), $editable);      }      $editable.focus();      context.invoke('toolbar.updateCodeview', false);    };    this.destroy = function () {      if (this.isActivated()) {        this.deactivate();      }    };  };  var EDITABLE_PADDING = 24;  var Statusbar = function (context) {    var $document = $(document);    var $statusbar = context.layoutInfo.statusbar;    var $editable = context.layoutInfo.editable;    var options = context.options;    this.initialize = function () {      if (options.airMode || options.disableResizeEditor) {        return;      }      $statusbar.on('mousedown', function (event) {        event.preventDefault();        event.stopPropagation();        var editableTop = $editable.offset().top - $document.scrollTop();        $document.on('mousemove', function (event) {          var height = event.clientY - (editableTop + EDITABLE_PADDING);          height = (options.minheight > 0) ? Math.max(height, options.minheight) : height;          height = (options.maxHeight > 0) ? Math.min(height, options.maxHeight) : height;          $editable.height(height);        }).one('mouseup', function () {          $document.off('mousemove');        });      });    };    this.destroy = function () {      $statusbar.off();    };  };  var Fullscreen = function (context) {    var $editor = context.layoutInfo.editor;    var $toolbar = context.layoutInfo.toolbar;    var $editable = context.layoutInfo.editable;    var $codable = context.layoutInfo.codable;    var $window = $(window);    var $scrollbar = $('html, body');    /**     * toggle fullscreen     */    this.toggle = function () {      var resize = function (size) {        $editable.css('height', size.h);        $codable.css('height', size.h);        if ($codable.data('cmeditor')) {          $codable.data('cmeditor').setsize(null, size.h);        }      };      $editor.toggleClass('fullscreen');      if (this.isFullscreen()) {        $editable.data('orgHeight', $editable.css('height'));        $window.on('resize', function () {          resize({            h: $window.height() - $toolbar.outerHeight()          });        }).trigger('resize');        $scrollbar.css('overflow', 'hidden');      } else {        $window.off('resize');        resize({          h: $editable.data('orgHeight')        });        $scrollbar.css('overflow', 'visible');      }      context.invoke('toolbar.updateFullscreen', this.isFullscreen());    };    this.isFullscreen = function () {      return $editor.hasClass('fullscreen');    };  };  var Handle = function (context) {    var self = this;    var $document = $(document);    var $editingArea = context.layoutInfo.editingArea;    var options = context.options;    this.events = {      'summernote.mousedown': function (we, e) {        if (self.update(e.target)) {          e.preventDefault();        }      },      'summernote.keyup summernote.scroll summernote.change summernote.dialog.shown': function () {        self.update();      }    };    this.initialize = function () {      this.$handle = $([        '<div class="note-handle">',        '<div class="note-control-selection">',        '<div class="note-control-selection-bg"></div>',        '<div class="note-control-holder note-control-nw"></div>',        '<div class="note-control-holder note-control-ne"></div>',        '<div class="note-control-holder note-control-sw"></div>',        '<div class="',        (options.disableResizeImage ? 'note-control-holder' : 'note-control-sizing'),        ' note-control-se"></div>',        (options.disableResizeImage ? '' : '<div class="note-control-selection-info"></div>'),        '</div>',        '</div>'      ].join('')).prependTo($editingArea);      this.$handle.on('mousedown', function (event) {        if (dom.isControlSizing(event.target)) {          event.preventDefault();          event.stopPropagation();          var $target = self.$handle.find('.note-control-selection').data('target'),              posStart = $target.offset(),              scrollTop = $document.scrollTop();          $document.on('mousemove', function (event) {            context.invoke('editor.resizeTo', {              x: event.clientX - posStart.left,              y: event.clientY - (posStart.top - scrollTop)            }, $target, !event.shiftKey);            self.update($target[0]);          }).one('mouseup', function (e) {            e.preventDefault();            $document.off('mousemove');            context.invoke('editor.afterCommand');          });          if (!$target.data('ratio')) { // original ratio.            $target.data('ratio', $target.height() / $target.width());          }        }      });    };    this.destroy = function () {      this.$handle.remove();    };    this.update = function (target) {      var isImage = dom.isImg(target);      var $selection = this.$handle.find('.note-control-selection');      context.invoke('imagePopover.update', target);      if (isImage) {        var $image = $(target);        var pos = $image.position();        // include margin        var imageSize = {          w: $image.outerWidth(true),          h: $image.outerHeight(true)        };        $selection.css({          display: 'block',          left: pos.left,          top: pos.top,          width: imageSize.w,          height: imageSize.h        }).data('target', $image); // save current image element.        var sizingText = imageSize.w + 'x' + imageSize.h;        $selection.find('.note-control-selection-info').text(sizingText);        context.invoke('editor.saveTarget', target);      } else {        this.hide();      }      return isImage;    };    /**     * hide     *     * @param {jQuery} $handle     */    this.hide = function () {      context.invoke('editor.clearTarget');      this.$handle.children().hide();    };  };  var AutoLink = function (context) {    var self = this;    var defaultScheme = 'http://';    var linkPattern = /^(https?:\/\/|ssh:\/\/|ftp:\/\/|file:\/|mailto:[A-Z0-9._%+-]+@)?(www\.)?(.+)$/i;    this.events = {      'summernote.keyup': function (we, e) {        if (!e.isDefaultPrevented()) {          self.handleKeyup(e);        }      },      'summernote.keydown': function (we, e) {        self.handleKeydown(e);      }    };    this.initialize = function () {      this.lastWordRange = null;    };    this.destroy = function () {      this.lastWordRange = null;    };    this.replace = function () {      if (!this.lastWordRange) {        return;      }      var keyword = this.lastWordRange.toString();      var match = keyword.match(linkPattern);      if (match && (match[1] || match[2])) {        var link = match[1] ? keyword : defaultScheme + keyword;        var node = $('<a />').html(keyword).attr('href', link)[0];        this.lastWordRange.insertNode(node);        this.lastWordRange = null;        context.invoke('editor.focus');      }    };    this.handleKeydown = function (e) {      if (list.contains([key.code.ENTER, key.code.SPACE], e.keyCode)) {        var wordRange = context.invoke('editor.createRange').getWordRange();        this.lastWordRange = wordRange;      }    };    this.handleKeyup = function (e) {      if (list.contains([key.code.ENTER, key.code.SPACE], e.keyCode)) {        this.replace();      }    };  };  /**   * textarea auto sync.   */  var AutoSync = function (context) {    var $note = context.layoutInfo.note;    this.events = {      'summernote.change': function () {        $note.val(context.invoke('code'));      }    };    this.shouldInitialize = function () {      return dom.isTextarea($note[0]);    };  };  var Placeholder = function (context) {    var self = this;    var $editingArea = context.layoutInfo.editingArea;    var options = context.options;    this.events = {      'summernote.init summernote.change': function () {        self.update();      },      'summernote.codeview.toggled': function () {        self.update();      }    };    this.shouldInitialize = function () {      return !!options.placeholder;    };    this.initialize = function () {      this.$placeholder = $('<div class="note-placeholder">');      this.$placeholder.on('click', function () {        context.invoke('focus');      }).text(options.placeholder).prependTo($editingArea);    };    this.destroy = function () {      this.$placeholder.remove();    };    this.update = function () {      var isShow = !context.invoke('codeview.isActivated') && context.invoke('editor.isEmpty');      this.$placeholder.toggle(isShow);    };  };  var Buttons = function (context) {    var self = this;    var ui = $.summernote.ui;    var $toolbar = context.layoutInfo.toolbar;    var options = context.options;    var lang = options.langInfo;    var invertedKeyMap = func.invertObject(options.keyMap[agent.isMac ? 'mac' : 'pc']);    var representShortcut = this.representShortcut = function (editorMethod) {      var shortcut = invertedKeyMap[editorMethod];      if (agent.isMac) {        shortcut = shortcut.replace('CMD', '⌘').replace('SHIFT', '⇧');      }      shortcut = shortcut.replace('BACKSLASH', '\\')                         .replace('SLASH', '/')                         .replace('LEFTBRACKET', '[')                         .replace('RIGHTBRACKET', ']');      return ' (' + shortcut + ')';    };    this.initialize = function () {      this.addToolbarButtons();      this.addImagePopoverButtons();      this.addLinkPopoverButtons();      this.fontInstalledMap = {};    };    this.destroy = function () {      delete this.fontInstalledMap;    };    this.isFontInstalled = function (name) {      if (!self.fontInstalledMap.hasOwnProperty(name)) {        self.fontInstalledMap[name] = agent.isFontInstalled(name) ||          list.contains(options.fontNamesIgnoreCheck, name);      }      return self.fontInstalledMap[name];    };    this.addToolbarButtons = function () {      context.memo('button.style', function () {        return ui.buttonGroup([          ui.button({            className: 'dropdown-toggle',            contents: ui.icon(options.icons.magic) + ' ' + ui.icon(options.icons.caret, 'span'),            tooltip: lang.style.style,            data: {              toggle: 'dropdown'            }          }),          ui.dropdown({            className: 'dropdown-style',            items: context.options.styleTags,            template: function (item) {              if (typeof item === 'string') {                item = { tag: item, title: item };              }              var tag = item.tag;              var title = item.title;              var style = item.style ? ' style="' + item.style + '" ' : '';              var className = item.className ? ' className="' + item.className + '"' : '';              return '<' + tag + style + className + '>' + title + '</' + tag +  '>';            },            click: context.createInvokeHandler('editor.formatBlock')          })        ]).render();      });      context.memo('button.bold', function () {        return ui.button({          className: 'note-btn-bold',          contents: ui.icon(options.icons.bold),          tooltip: lang.font.bold + representShortcut('bold'),          click: context.createInvokeHandler('editor.bold')        }).render();      });      context.memo('button.italic', function () {        return ui.button({          className: 'note-btn-italic',          contents: ui.icon(options.icons.italic),          tooltip: lang.font.italic + representShortcut('italic'),          click: context.createInvokeHandler('editor.italic')        }).render();      });      context.memo('button.underline', function () {        return ui.button({          className: 'note-btn-underline',          contents: ui.icon(options.icons.underline),          tooltip: lang.font.underline + representShortcut('underline'),          click: context.createInvokeHandler('editor.underline')        }).render();      });      context.memo('button.clear', function () {        return ui.button({          contents: ui.icon(options.icons.eraser),          tooltip: lang.font.clear + representShortcut('removeFormat'),          click: context.createInvokeHandler('editor.removeFormat')        }).render();      });      context.memo('button.strikethrough', function () {        return ui.button({          className: 'note-btn-strikethrough',          contents: ui.icon(options.icons.strikethrough),          tooltip: lang.font.strikethrough + representShortcut('strikethrough'),          click: context.createInvokeHandler('editor.strikethrough')        }).render();      });      context.memo('button.superscript', function () {        return ui.button({          className: 'note-btn-superscript',          contents: ui.icon(options.icons.superscript),          tooltip: lang.font.superscript,          click: context.createInvokeHandler('editor.superscript')        }).render();      });      context.memo('button.subscript', function () {        return ui.button({          className: 'note-btn-subscript',          contents: ui.icon(options.icons.subscript),          tooltip: lang.font.subscript,          click: context.createInvokeHandler('editor.subscript')        }).render();      });      context.memo('button.fontname', function () {        return ui.buttonGroup([          ui.button({            className: 'dropdown-toggle',            contents: '<span class="note-current-fontname"/> ' + ui.icon(options.icons.caret, 'span'),            tooltip: lang.font.name,            data: {              toggle: 'dropdown'            }          }),          ui.dropdownCheck({            className: 'dropdown-fontname',            checkClassName: options.icons.menuCheck,            items: options.fontNames.filter(self.isFontInstalled),            template: function (item) {              return '<span style="font-family:' + item + '">' + item + '</span>';            },            click: context.createInvokeHandler('editor.fontName')          })        ]).render();      });      context.memo('button.fontsize', function () {        return ui.buttonGroup([          ui.button({            className: 'dropdown-toggle',            contents: '<span class="note-current-fontsize"/>' + ui.icon(options.icons.caret, 'span'),            tooltip: lang.font.size,            data: {              toggle: 'dropdown'            }          }),          ui.dropdownCheck({            className: 'dropdown-fontsize',            checkClassName: options.icons.menuCheck,            items: options.fontSizes,            click: context.createInvokeHandler('editor.fontSize')          })        ]).render();      });      context.memo('button.color', function () {        return ui.buttonGroup({          className: 'note-color',          children: [            ui.button({              className: 'note-current-color-button',              contents: ui.icon(options.icons.font + ' note-recent-color'),              tooltip: lang.color.recent,              click: function (e) {                var $button = $(e.currentTarget);                context.invoke('editor.color', {                  backColor: $button.attr('data-backColor'),                  foreColor: $button.attr('data-foreColor')                });              },              callback: function ($button) {                var $recentColor = $button.find('.note-recent-color');                $recentColor.css('background-color', '#FFFF00');                $button.attr('data-backColor', '#FFFF00');              }            }),            ui.button({              className: 'dropdown-toggle',              contents: ui.icon(options.icons.caret, 'span'),              tooltip: lang.color.more,              data: {                toggle: 'dropdown'              }            }),            ui.dropdown({              items: [                '<li>',                '<div class="btn-group">',                '  <div class="note-palette-title">' + lang.color.background + '</div>',                '  <div>',                '    <button type="button" class="note-color-reset btn btn-default" data-event="backColor" data-value="inherit">',                lang.color.transparent,                '    </button>',                '  </div>',                '  <div class="note-holder" data-event="backColor"/>',                '</div>',                '<div class="btn-group">',                '  <div class="note-palette-title">' + lang.color.foreground + '</div>',                '  <div>',                '    <button type="button" class="note-color-reset btn btn-default" data-event="removeFormat" data-value="foreColor">',                lang.color.resetToDefault,                '    </button>',                '  </div>',                '  <div class="note-holder" data-event="foreColor"/>',                '</div>',                '</li>'              ].join(''),              callback: function ($dropdown) {                $dropdown.find('.note-holder').each(function () {                  var $holder = $(this);                  $holder.append(ui.palette({                    colors: options.colors,                    eventName: $holder.data('event')                  }).render());                });              },              click: function (event) {                var $button = $(event.target);                var eventName = $button.data('event');                var value = $button.data('value');                if (eventName && value) {                  var key = eventName === 'backColor' ? 'background-color' : 'color';                  var $color = $button.closest('.note-color').find('.note-recent-color');                  var $currentButton = $button.closest('.note-color').find('.note-current-color-button');                  $color.css(key, value);                  $currentButton.attr('data-' + eventName, value);                  context.invoke('editor.' + eventName, value);                }              }            })          ]        }).render();      });      context.memo('button.ul',  function () {        return ui.button({          contents: ui.icon(options.icons.unorderedlist),          tooltip: lang.lists.unordered + representShortcut('insertUnorderedList'),          click: context.createInvokeHandler('editor.insertUnorderedList')        }).render();      });      context.memo('button.ol', function () {        return ui.button({          contents: ui.icon(options.icons.orderedlist),          tooltip: lang.lists.ordered + representShortcut('insertOrderedList'),          click:  context.createInvokeHandler('editor.insertOrderedList')        }).render();      });      var justifyLeft = ui.button({        contents: ui.icon(options.icons.alignLeft),        tooltip: lang.paragraph.left + representShortcut('justifyLeft'),        click: context.createInvokeHandler('editor.justifyLeft')      });      var justifyCenter = ui.button({        contents: ui.icon(options.icons.alignCenter),        tooltip: lang.paragraph.center + representShortcut('justifyCenter'),        click: context.createInvokeHandler('editor.justifyCenter')      });      var justifyRight = ui.button({        contents: ui.icon(options.icons.alignRight),        tooltip: lang.paragraph.right + representShortcut('justifyRight'),        click: context.createInvokeHandler('editor.justifyRight')      });      var justifyFull = ui.button({        contents: ui.icon(options.icons.alignJustify),        tooltip: lang.paragraph.justify + representShortcut('justifyFull'),        click: context.createInvokeHandler('editor.justifyFull')      });      var outdent = ui.button({        contents: ui.icon(options.icons.outdent),        tooltip: lang.paragraph.outdent + representShortcut('outdent'),        click: context.createInvokeHandler('editor.outdent')      });      var indent = ui.button({        contents: ui.icon(options.icons.indent),        tooltip: lang.paragraph.indent + representShortcut('indent'),        click: context.createInvokeHandler('editor.indent')      });      context.memo('button.justifyLeft', func.invoke(justifyLeft, 'render'));      context.memo('button.justifyCenter', func.invoke(justifyCenter, 'render'));      context.memo('button.justifyRight', func.invoke(justifyRight, 'render'));      context.memo('button.justifyFull', func.invoke(justifyFull, 'render'));      context.memo('button.outdent', func.invoke(outdent, 'render'));      context.memo('button.indent', func.invoke(indent, 'render'));      context.memo('button.paragraph', function () {        return ui.buttonGroup([          ui.button({            className: 'dropdown-toggle',            contents: ui.icon(options.icons.alignLeft) + ' ' + ui.icon(options.icons.caret, 'span'),            tooltip: lang.paragraph.paragraph,            data: {              toggle: 'dropdown'            }          }),          ui.dropdown([            ui.buttonGroup({              className: 'note-align',              children: [justifyLeft, justifyCenter, justifyRight, justifyFull]            }),            ui.buttonGroup({              className: 'note-list',              children: [outdent, indent]            })          ])        ]).render();      });      context.memo('button.height', function () {        return ui.buttonGroup([          ui.button({            className: 'dropdown-toggle',            contents: ui.icon(options.icons.textHeight) + ' ' + ui.icon(options.icons.caret, 'span'),            tooltip: lang.font.height,            data: {              toggle: 'dropdown'            }          }),          ui.dropdownCheck({            items: options.lineHeights,            checkClassName: options.icons.menuCheck,            className: 'dropdown-line-height',            click: context.createInvokeHandler('editor.lineHeight')          })        ]).render();      });      context.memo('button.table', function () {        return ui.buttonGroup([          ui.button({            className: 'dropdown-toggle',            contents: ui.icon(options.icons.table) + ' ' + ui.icon(options.icons.caret, 'span'),            tooltip: lang.table.table,            data: {              toggle: 'dropdown'            }          }),          ui.dropdown({            className: 'note-table',            items: [              '<div class="note-dimension-picker">',              '  <div class="note-dimension-picker-mousecatcher" data-event="insertTable" data-value="1x1"/>',              '  <div class="note-dimension-picker-highlighted"/>',              '  <div class="note-dimension-picker-unhighlighted"/>',              '</div>',              '<div class="note-dimension-display">1 x 1</div>'            ].join('')          })        ], {          callback: function ($node) {            var $catcher = $node.find('.note-dimension-picker-mousecatcher');            $catcher.css({              width: options.insertTableMaxSize.col + 'em',              height: options.insertTableMaxSize.row + 'em'            }).mousedown(context.createInvokeHandler('editor.insertTable'))              .on('mousemove', self.tableMoveHandler);          }        }).render();      });      context.memo('button.link', function () {        return ui.button({          contents: ui.icon(options.icons.link),          tooltip: lang.link.link,          click: context.createInvokeHandler('linkDialog.show')        }).render();      });      context.memo('button.picture', function () {        return ui.button({          contents: ui.icon(options.icons.picture),          tooltip: lang.image.image,          click: context.createInvokeHandler('imageDialog.show')        }).render();      });      context.memo('button.video', function () {        return ui.button({          contents: ui.icon(options.icons.video),          tooltip: lang.video.video,          click: context.createInvokeHandler('videoDialog.show')        }).render();      });      context.memo('button.hr', function () {        return ui.button({          contents: ui.icon(options.icons.minus),          tooltip: lang.hr.insert + representShortcut('insertHorizontalRule'),          click: context.createInvokeHandler('editor.insertHorizontalRule')        }).render();      });      context.memo('button.fullscreen', function () {        return ui.button({          className: 'btn-fullscreen',          contents: ui.icon(options.icons.arrowsAlt),          tooltip: lang.options.fullscreen,          click: context.createInvokeHandler('fullscreen.toggle')        }).render();      });      context.memo('button.codeview', function () {        return ui.button({          className: 'btn-codeview',          contents: ui.icon(options.icons.code),          tooltip: lang.options.codeview,          click: context.createInvokeHandler('codeview.toggle')        }).render();      });      context.memo('button.redo', function () {        return ui.button({          contents: ui.icon(options.icons.redo),          tooltip: lang.history.redo + representShortcut('redo'),          click: context.createInvokeHandler('editor.redo')        }).render();      });      context.memo('button.undo', function () {        return ui.button({          contents: ui.icon(options.icons.undo),          tooltip: lang.history.undo + representShortcut('undo'),          click: context.createInvokeHandler('editor.undo')        }).render();      });      context.memo('button.help', function () {        return ui.button({          contents: ui.icon(options.icons.question),          tooltip: lang.options.help,          click: context.createInvokeHandler('helpDialog.show')        }).render();      });    };    /**     * image : [     *   ['imagesize', ['imageSize100', 'imageSize50', 'imageSize25']],     *   ['float', ['floatLeft', 'floatRight', 'floatNone' ]],     *   ['remove', ['removeMedia']]     * ],     */    this.addImagePopoverButtons = function () {      // Image Size Buttons      context.memo('button.imageSize100', function () {        return ui.button({          contents: '<span class="note-fontsize-10">100%</span>',          tooltip: lang.image.resizeFull,          click: context.createInvokeHandler('editor.resize', '1')        }).render();      });      context.memo('button.imageSize50', function () {        return  ui.button({          contents: '<span class="note-fontsize-10">50%</span>',          tooltip: lang.image.resizeHalf,          click: context.createInvokeHandler('editor.resize', '0.5')        }).render();      });      context.memo('button.imageSize25', function () {        return ui.button({          contents: '<span class="note-fontsize-10">25%</span>',          tooltip: lang.image.resizeQuarter,          click: context.createInvokeHandler('editor.resize', '0.25')        }).render();      });      // Float Buttons      context.memo('button.floatLeft', function () {        return ui.button({          contents: ui.icon(options.icons.alignLeft),          tooltip: lang.image.floatLeft,          click: context.createInvokeHandler('editor.floatMe', 'left')        }).render();      });      context.memo('button.floatRight', function () {        return ui.button({          contents: ui.icon(options.icons.alignRight),          tooltip: lang.image.floatRight,          click: context.createInvokeHandler('editor.floatMe', 'right')        }).render();      });      context.memo('button.floatNone', function () {        return ui.button({          contents: ui.icon(options.icons.alignJustify),          tooltip: lang.image.floatNone,          click: context.createInvokeHandler('editor.floatMe', 'none')        }).render();      });      // Remove Buttons      context.memo('button.removeMedia', function () {        return ui.button({          contents: ui.icon(options.icons.trash),          tooltip: lang.image.remove,          click: context.createInvokeHandler('editor.removeMedia')        }).render();      });    };    this.addLinkPopoverButtons = function () {      context.memo('button.linkDialogShow', function () {        return ui.button({          contents: ui.icon(options.icons.link),          tooltip: lang.link.edit,          click: context.createInvokeHandler('linkDialog.show')        }).render();      });      context.memo('button.unlink', function () {        return ui.button({          contents: ui.icon(options.icons.unlink),          tooltip: lang.link.unlink,          click: context.createInvokeHandler('editor.unlink')        }).render();      });    };    this.build = function ($container, groups) {      for (var groupIdx = 0, groupLen = groups.length; groupIdx < groupLen; groupIdx++) {        var group = groups[groupIdx];        var groupName = group[0];        var buttons = group[1];        var $group = ui.buttonGroup({          className: 'note-' + groupName        }).render();        for (var idx = 0, len = buttons.length; idx < len; idx++) {          var button = context.memo('button.' + buttons[idx]);          if (button) {            $group.append(typeof button === 'function' ? button(context) : button);          }        }        $group.appendTo($container);      }    };    this.updateCurrentStyle = function () {      var styleInfo = context.invoke('editor.currentStyle');      this.updateBtnStates({        '.note-btn-bold': function () {          return styleInfo['font-bold'] === 'bold';        },        '.note-btn-italic': function () {          return styleInfo['font-italic'] === 'italic';        },        '.note-btn-underline': function () {          return styleInfo['font-underline'] === 'underline';        },        '.note-btn-subscript': function () {          return styleInfo['font-subscript'] === 'subscript';        },        '.note-btn-superscript': function () {          return styleInfo['font-superscript'] === 'superscript';        },        '.note-btn-strikethrough': function () {          return styleInfo['font-strikethrough'] === 'strikethrough';        }      });      if (styleInfo['font-family']) {        var fontNames = styleInfo['font-family'].split(',').map(function (name) {          return name.replace(/[\'\"]/g, '')            .replace(/\s+$/, '')            .replace(/^\s+/, '');        });        var fontName = list.find(fontNames, self.isFontInstalled);        $toolbar.find('.dropdown-fontname li a').each(function () {          // always compare string to avoid creating another func.          var isChecked = ($(this).data('value') + '') === (fontName + '');          this.className = isChecked ? 'checked' : '';        });        $toolbar.find('.note-current-fontname').text(fontName);      }      if (styleInfo['font-size']) {        var fontSize = styleInfo['font-size'];        $toolbar.find('.dropdown-fontsize li a').each(function () {          // always compare with string to avoid creating another func.          var isChecked = ($(this).data('value') + '') === (fontSize + '');          this.className = isChecked ? 'checked' : '';        });        $toolbar.find('.note-current-fontsize').text(fontSize);      }      if (styleInfo['line-height']) {        var lineHeight = styleInfo['line-height'];        $toolbar.find('.dropdown-line-height li a').each(function () {          // always compare with string to avoid creating another func.          var isChecked = ($(this).data('value') + '') === (lineHeight + '');          this.className = isChecked ? 'checked' : '';        });      }    };    this.updateBtnStates = function (infos) {      $.each(infos, function (selector, pred) {        ui.toggleBtnActive($toolbar.find(selector), pred());      });    };    this.tableMoveHandler = function (event) {      var PX_PER_EM = 18;      var $picker = $(event.target.parentNode); // target is mousecatcher      var $dimensionDisplay = $picker.next();      var $catcher = $picker.find('.note-dimension-picker-mousecatcher');      var $highlighted = $picker.find('.note-dimension-picker-highlighted');      var $unhighlighted = $picker.find('.note-dimension-picker-unhighlighted');      var posOffset;      // HTML5 with jQuery - e.offsetX is undefined in Firefox      if (event.offsetX === undefined) {        var posCatcher = $(event.target).offset();        posOffset = {          x: event.pageX - posCatcher.left,          y: event.pageY - posCatcher.top        };      } else {        posOffset = {          x: event.offsetX,          y: event.offsetY        };      }      var dim = {        c: Math.ceil(posOffset.x / PX_PER_EM) || 1,        r: Math.ceil(posOffset.y / PX_PER_EM) || 1      };      $highlighted.css({ width: dim.c + 'em', height: dim.r + 'em' });      $catcher.data('value', dim.c + 'x' + dim.r);      if (3 < dim.c && dim.c < options.insertTableMaxSize.col) {        $unhighlighted.css({ width: dim.c + 1 + 'em'});      }      if (3 < dim.r && dim.r < options.insertTableMaxSize.row) {        $unhighlighted.css({ height: dim.r + 1 + 'em'});      }      $dimensionDisplay.html(dim.c + ' x ' + dim.r);    };  };  var Toolbar = function (context) {    var ui = $.summernote.ui;    var $note = context.layoutInfo.note;    var $toolbar = context.layoutInfo.toolbar;    var options = context.options;    this.shouldInitialize = function () {      return !options.airMode;    };    this.initialize = function () {      options.toolbar = options.toolbar || [];      if (!options.toolbar.length) {        $toolbar.hide();      } else {        context.invoke('buttons.build', $toolbar, options.toolbar);      }      if (options.toolbarContainer) {        $toolbar.appendTo(options.toolbarContainer);      }      $note.on('summernote.keyup summernote.mouseup summernote.change', function () {        context.invoke('buttons.updateCurrentStyle');      });      context.invoke('buttons.updateCurrentStyle');    };    this.destroy = function () {      $toolbar.children().remove();    };    this.updateFullscreen = function (isFullscreen) {      ui.toggleBtnActive($toolbar.find('.btn-fullscreen'), isFullscreen);    };    this.updateCodeview = function (isCodeview) {      ui.toggleBtnActive($toolbar.find('.btn-codeview'), isCodeview);      if (isCodeview) {        this.deactivate();      } else {        this.activate();      }    };    this.activate = function (isIncludeCodeview) {      var $btn = $toolbar.find('button');      if (!isIncludeCodeview) {        $btn = $btn.not('.btn-codeview');      }      ui.toggleBtn($btn, true);    };    this.deactivate = function (isIncludeCodeview) {      var $btn = $toolbar.find('button');      if (!isIncludeCodeview) {        $btn = $btn.not('.btn-codeview');      }      ui.toggleBtn($btn, false);    };  };  var LinkDialog = function (context) {    var self = this;    var ui = $.summernote.ui;    var $editor = context.layoutInfo.editor;    var options = context.options;    var lang = options.langInfo;    this.initialize = function () {      var $container = options.dialogsInBody ? $(document.body) : $editor;      var body = '<div class="form-group">' +                   '<label>' + lang.link.textToDisplay + '</label>' +                   '<input class="note-link-text form-control" type="text" />' +                 '</div>' +                 '<div class="form-group">' +                   '<label>' + lang.link.url + '</label>' +                   '<input class="note-link-url form-control" type="text" value="http://" />' +                 '</div>' +                 (!options.disableLinkTarget ?                   '<div class="checkbox">' +                     '<label>' + '<input type="checkbox" checked> ' + lang.link.openInNewWindow + '</label>' +                   '</div>' : ''                 );      var footer = '<button href="#" class="btn btn-primary note-link-btn disabled" disabled>' + lang.link.insert + '</button>';      this.$dialog = ui.dialog({        className: 'link-dialog',        title: lang.link.insert,        fade: options.dialogsFade,        body: body,        footer: footer      }).render().appendTo($container);    };    this.destroy = function () {      ui.hideDialog(this.$dialog);      this.$dialog.remove();    };    this.bindEnterKey = function ($input, $btn) {      $input.on('keypress', function (event) {        if (event.keyCode === key.code.ENTER) {          $btn.trigger('click');        }      });    };    /**     * Show link dialog and set event handlers on dialog controls.     *     * @param {Object} linkInfo     * @return {Promise}     */    this.showLinkDialog = function (linkInfo) {      return $.Deferred(function (deferred) {        var $linkText = self.$dialog.find('.note-link-text'),        $linkUrl = self.$dialog.find('.note-link-url'),        $linkBtn = self.$dialog.find('.note-link-btn'),        $openInNewWindow = self.$dialog.find('input[type=checkbox]');        ui.onDialogShown(self.$dialog, function () {          context.triggerEvent('dialog.shown');          $linkText.val(linkInfo.text);          $linkText.on('input', function () {            ui.toggleBtn($linkBtn, $linkText.val() && $linkUrl.val());            // if linktext was modified by keyup,            // stop cloning text from linkUrl            linkInfo.text = $linkText.val();          });          // if no url was given, copy text to url          if (!linkInfo.url) {            linkInfo.url = linkInfo.text || 'http://';            ui.toggleBtn($linkBtn, linkInfo.text);          }          $linkUrl.on('input', function () {            ui.toggleBtn($linkBtn, $linkText.val() && $linkUrl.val());            // display same link on `Text to display` input            // when create a new link            if (!linkInfo.text) {              $linkText.val($linkUrl.val());            }          }).val(linkInfo.url).trigger('focus');          self.bindEnterKey($linkUrl, $linkBtn);          self.bindEnterKey($linkText, $linkBtn);          $openInNewWindow.prop('checked', linkInfo.isNewWindow);          $linkBtn.one('click', function (event) {            event.preventDefault();            deferred.resolve({              range: linkInfo.range,              url: $linkUrl.val(),              text: $linkText.val(),              isNewWindow: $openInNewWindow.is(':checked')            });            self.$dialog.modal('hide');          });        });        ui.onDialogHidden(self.$dialog, function () {          // detach events          $linkText.off('input keypress');          $linkUrl.off('input keypress');          $linkBtn.off('click');          if (deferred.state() === 'pending') {            deferred.reject();          }        });        ui.showDialog(self.$dialog);      }).promise();    };    /**     * @param {Object} layoutInfo     */    this.show = function () {      var linkInfo = context.invoke('editor.getLinkInfo');      context.invoke('editor.saveRange');      this.showLinkDialog(linkInfo).then(function (linkInfo) {        context.invoke('editor.restoreRange');        context.invoke('editor.createLink', linkInfo);      }).fail(function () {        context.invoke('editor.restoreRange');      });    };    context.memo('help.linkDialog.show', options.langInfo.help['linkDialog.show']);  };  var LinkPopover = function (context) {    var self = this;    var ui = $.summernote.ui;    var options = context.options;    this.events = {      'summernote.keyup summernote.mouseup summernote.change summernote.scroll': function () {        self.update();      },      'summernote.dialog.shown': function () {        self.hide();      }    };    this.shouldInitialize = function () {      return !list.isEmpty(options.popover.link);    };    this.initialize = function () {      this.$popover = ui.popover({        className: 'note-link-popover',        callback: function ($node) {          var $content = $node.find('.popover-content');          $content.prepend('<span><a target="_blank"></a>&nbsp;</span>');        }      }).render().appendTo('body');      var $content = this.$popover.find('.popover-content');      context.invoke('buttons.build', $content, options.popover.link);    };    this.destroy = function () {      this.$popover.remove();    };    this.update = function () {      // Prevent focusing on editable when invoke('code') is executed      if (!context.invoke('editor.hasFocus')) {        this.hide();        return;      }      var rng = context.invoke('editor.createRange');      if (rng.isCollapsed() && rng.isOnAnchor()) {        var anchor = dom.ancestor(rng.sc, dom.isAnchor);        var href = $(anchor).attr('href');        this.$popover.find('a').attr('href', href).html(href);        var pos = dom.posFromPlaceholder(anchor);        this.$popover.css({          display: 'block',          left: pos.left,          top: pos.top        });      } else {        this.hide();      }    };    this.hide = function () {      this.$popover.hide();    };  };  var ImageDialog = function (context) {    var self = this;    var ui = $.summernote.ui;    var $editor = context.layoutInfo.editor;    var options = context.options;    var lang = options.langInfo;    this.initialize = function () {      var $container = options.dialogsInBody ? $(document.body) : $editor;      var imageLimitation = '';      if (options.maximumImageFileSize) {        var unit = Math.floor(Math.log(options.maximumImageFileSize) / Math.log(1024));        var readableSize = (options.maximumImageFileSize / Math.pow(1024, unit)).toFixed(2) * 1 +                           ' ' + ' KMGTP'[unit] + 'B';        imageLimitation = '<small>' + lang.image.maximumFileSize + ' : ' + readableSize + '</small>';      }      var body = '<div class="form-group note-group-select-from-files">' +                   '<label>' + lang.image.selectFromFiles + '</label>' +                   '<input class="note-image-input form-control" type="file" name="files" accept="image/*" multiple="multiple" />' +                   imageLimitation +                 '</div>' +                 '<div class="form-group" style="overflow:auto;">' +                   '<label>' + lang.image.url + '</label>' +                   '<input class="note-image-url form-control col-md-12" type="text" />' +                 '</div>';      var footer = '<button href="#" class="btn btn-primary note-image-btn disabled" disabled>' + lang.image.insert + '</button>';      this.$dialog = ui.dialog({        title: lang.image.insert,        fade: options.dialogsFade,        body: body,        footer: footer      }).render().appendTo($container);    };    this.destroy = function () {      ui.hideDialog(this.$dialog);      this.$dialog.remove();    };    this.bindEnterKey = function ($input, $btn) {      $input.on('keypress', function (event) {        if (event.keyCode === key.code.ENTER) {          $btn.trigger('click');        }      });    };    this.show = function () {      context.invoke('editor.saveRange');      this.showImageDialog().then(function (data) {        // [workaround] hide dialog before restore range for IE range focus        ui.hideDialog(self.$dialog);        context.invoke('editor.restoreRange');        if (typeof data === 'string') { // image url          context.invoke('editor.insertImage', data);        } else { // array of files          context.invoke('editor.insertImagesOrCallback', data);        }      }).fail(function () {        context.invoke('editor.restoreRange');      });    };    /**     * show image dialog     *     * @param {jQuery} $dialog     * @return {Promise}     */    this.showImageDialog = function () {      return $.Deferred(function (deferred) {        var $imageInput = self.$dialog.find('.note-image-input'),            $imageUrl = self.$dialog.find('.note-image-url'),            $imageBtn = self.$dialog.find('.note-image-btn');        ui.onDialogShown(self.$dialog, function () {          context.triggerEvent('dialog.shown');          // Cloning imageInput to clear element.          $imageInput.replaceWith($imageInput.clone()            .on('change', function () {              deferred.resolve(this.files || this.value);            })            .val('')          );          $imageBtn.click(function (event) {            event.preventDefault();            deferred.resolve($imageUrl.val());          });          $imageUrl.on('keyup paste', function () {            var url = $imageUrl.val();            ui.toggleBtn($imageBtn, url);          }).val('').trigger('focus');          self.bindEnterKey($imageUrl, $imageBtn);        });        ui.onDialogHidden(self.$dialog, function () {          $imageInput.off('change');          $imageUrl.off('keyup paste keypress');          $imageBtn.off('click');          if (deferred.state() === 'pending') {            deferred.reject();          }        });        ui.showDialog(self.$dialog);      });    };  };  var ImagePopover = function (context) {    var ui = $.summernote.ui;    var options = context.options;    this.shouldInitialize = function () {      return !list.isEmpty(options.popover.image);    };    this.initialize = function () {      this.$popover = ui.popover({        className: 'note-image-popover'      }).render().appendTo('body');      var $content = this.$popover.find('.popover-content');      context.invoke('buttons.build', $content, options.popover.image);    };    this.destroy = function () {      this.$popover.remove();    };    this.update = function (target) {      if (dom.isImg(target)) {        var pos = dom.posFromPlaceholder(target);        this.$popover.css({          display: 'block',          left: pos.left,          top: pos.top        });      } else {        this.hide();      }    };    this.hide = function () {      this.$popover.hide();    };  };  var VideoDialog = function (context) {    var self = this;    var ui = $.summernote.ui;    var $editor = context.layoutInfo.editor;    var options = context.options;    var lang = options.langInfo;    this.initialize = function () {      var $container = options.dialogsInBody ? $(document.body) : $editor;      var body = '<div class="form-group row-fluid">' +          '<label>' + lang.video.url + ' <small class="text-muted">' + lang.video.providers + '</small></label>' +          '<input class="note-video-url form-control span12" type="text" />' +          '</div>';      var footer = '<button href="#" class="btn btn-primary note-video-btn disabled" disabled>' + lang.video.insert + '</button>';      this.$dialog = ui.dialog({        title: lang.video.insert,        fade: options.dialogsFade,        body: body,        footer: footer      }).render().appendTo($container);    };    this.destroy = function () {      ui.hideDialog(this.$dialog);      this.$dialog.remove();    };    this.bindEnterKey = function ($input, $btn) {      $input.on('keypress', function (event) {        if (event.keyCode === key.code.ENTER) {          $btn.trigger('click');        }      });    };    this.createVideoNode = function (url) {      // video url patterns(youtube, instagram, vimeo, dailymotion, youku, mp4, ogg, webm)      // BUG: CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')      // var ytRegExp = /^(?:https?:\/\/)?(?:www\.)?(?:youtu\.be\/|youtube\.com\/(?:embed\/|v\/|watch\?v=|watch\?.+&v=))((\w|-){11})(?:\S+)?$/;      // FIXED:       var ytRegExp = /^(?:https?:\/\/)?(?:www\.)?(?:youtu\.be\/|youtube\.com\/(?:embed\/|v\/|watch\?v=|watch\?.+&v=))((\w|-) {11})(?:\S+)?$/;      var ytMatch = url.match(ytRegExp);      var igRegExp = /\/\/instagram.com\/p\/(.[a-zA-Z0-9_-]*)/;      var igMatch = url.match(igRegExp);      var vRegExp = /\/\/vine.co\/v\/(.[a-zA-Z0-9]*)/;      var vMatch = url.match(vRegExp);      var vimRegExp = /\/\/(player.)?vimeo.com\/([a-z]*\/)*([0-9]{6,11})[?]?.*/;      var vimMatch = url.match(vimRegExp);      var dmRegExp = /.+dailymotion.com\/(video|hub)\/([^_]+)[^#]*(#video=([^_&]+))?/;      var dmMatch = url.match(dmRegExp);      var youkuRegExp = /\/\/v\.youku\.com\/v_show\/id_(\w+)=*\.html/;      var youkuMatch = url.match(youkuRegExp);      var mp4RegExp = /^.+.(mp4|m4v)$/;      var mp4Match = url.match(mp4RegExp);      var oggRegExp = /^.+.(ogg|ogv)$/;      var oggMatch = url.match(oggRegExp);      var webmRegExp = /^.+.(webm)$/;      var webmMatch = url.match(webmRegExp);      var $video;      if (ytMatch && ytMatch[1].length === 11) {        var youtubeId = ytMatch[1];        $video = $('<iframe>')            .attr('frameborder', 0)            .attr('src', '//www.youtube.com/embed/' + youtubeId)            .attr('width', '640').attr('height', '360');      } else if (igMatch && igMatch[0].length) {        $video = $('<iframe>')            .attr('frameborder', 0)            .attr('src', igMatch[0] + '/embed/')            .attr('width', '612').attr('height', '710')            .attr('scrolling', 'no')            .attr('allowtransparency', 'true');      } else if (vMatch && vMatch[0].length) {        $video = $('<iframe>')            .attr('frameborder', 0)            .attr('src', vMatch[0] + '/embed/simple')            .attr('width', '600').attr('height', '600')            .attr('class', 'vine-embed');      } else if (vimMatch && vimMatch[3].length) {        $video = $('<iframe webkitallowfullscreen mozallowfullscreen allowfullscreen>')            .attr('frameborder', 0)            .attr('src', '//player.vimeo.com/video/' + vimMatch[3])            .attr('width', '640').attr('height', '360');      } else if (dmMatch && dmMatch[2].length) {        $video = $('<iframe>')            .attr('frameborder', 0)            .attr('src', '//www.dailymotion.com/embed/video/' + dmMatch[2])            .attr('width', '640').attr('height', '360');      } else if (youkuMatch && youkuMatch[1].length) {        $video = $('<iframe webkitallowfullscreen mozallowfullscreen allowfullscreen>')            .attr('frameborder', 0)            .attr('height', '498')            .attr('width', '510')            .attr('src', '//player.youku.com/embed/' + youkuMatch[1]);      } else if (mp4Match || oggMatch || webmMatch) {        $video = $('<video controls>')            .attr('src', url)            .attr('width', '640').attr('height', '360');      } else {        // this is not a known video link. Now what, Cat? Now what?        return false;      }      $video.addClass('note-video-clip');      return $video[0];    };    this.show = function () {      var text = context.invoke('editor.getSelectedText');      context.invoke('editor.saveRange');      this.showVideoDialog(text).then(function (url) {        // [workaround] hide dialog before restore range for IE range focus        ui.hideDialog(self.$dialog);        context.invoke('editor.restoreRange');        // build node        var $node = self.createVideoNode(url);        if ($node) {          // insert video node          context.invoke('editor.insertNode', $node);        }      }).fail(function () {        context.invoke('editor.restoreRange');      });    };    /**     * show image dialog     *     * @param {jQuery} $dialog     * @return {Promise}     */    this.showVideoDialog = function (text) {      return $.Deferred(function (deferred) {        var $videoUrl = self.$dialog.find('.note-video-url'),            $videoBtn = self.$dialog.find('.note-video-btn');        ui.onDialogShown(self.$dialog, function () {          context.triggerEvent('dialog.shown');          $videoUrl.val(text).on('input', function () {            ui.toggleBtn($videoBtn, $videoUrl.val());          }).trigger('focus');          $videoBtn.click(function (event) {            event.preventDefault();            deferred.resolve($videoUrl.val());          });          self.bindEnterKey($videoUrl, $videoBtn);        });        ui.onDialogHidden(self.$dialog, function () {          $videoUrl.off('input');          $videoBtn.off('click');          if (deferred.state() === 'pending') {            deferred.reject();          }        });        ui.showDialog(self.$dialog);      });    };  };  var HelpDialog = function (context) {    var self = this;    var ui = $.summernote.ui;    var $editor = context.layoutInfo.editor;    var options = context.options;    var lang = options.langInfo;    this.createShortCutList = function () {      var keyMap = options.keyMap[agent.isMac ? 'mac' : 'pc'];      return Object.keys(keyMap).map(function (key) {        var command = keyMap[key];        var $row = $('<div><div class="help-list-item"/></div>');        $row.append($('<label><kbd>' + key + '</kdb></label>').css({          'width': 180,          'margin-right': 10        })).append($('<span/>').html(context.memo('help.' + command) || command));        return $row.html();      }).join('');    };    this.initialize = function () {      var $container = options.dialogsInBody ? $(document.body) : $editor;      var body = [        '<p class="text-center">',        '<a href="//summernote.org/" target="_blank">Summernote 0.8.1</a> · ',        '<a href="//github.com/summernote/summernote" target="_blank">Project</a> · ',        '<a href="//github.com/summernote/summernote/issues" target="_blank">Issues</a>',        '</p>'      ].join('');      this.$dialog = ui.dialog({        title: lang.options.help,        fade: options.dialogsFade,        body: this.createShortCutList(),        footer: body,        callback: function ($node) {          $node.find('.modal-body').css({            'max-height': 300,            'overflow': 'scroll'          });        }      }).render().appendTo($container);    };    this.destroy = function () {      ui.hideDialog(this.$dialog);      this.$dialog.remove();    };    /**     * show help dialog     *     * @return {Promise}     */    this.showHelpDialog = function () {      return $.Deferred(function (deferred) {        ui.onDialogShown(self.$dialog, function () {          context.triggerEvent('dialog.shown');          deferred.resolve();        });        ui.showDialog(self.$dialog);      }).promise();    };    this.show = function () {      context.invoke('editor.saveRange');      this.showHelpDialog().then(function () {        context.invoke('editor.restoreRange');      });    };  };  var AirPopover = function (context) {    var self = this;    var ui = $.summernote.ui;    var options = context.options;    var AIR_MODE_POPOVER_X_OFFSET = 20;    this.events = {      'summernote.keyup summernote.mouseup summernote.scroll': function () {        self.update();      },      'summernote.change summernote.dialog.shown': function () {        self.hide();      },      'summernote.focusout': function (we, e) {        // [workaround] Firefox doesn't support relatedTarget on focusout        //  - Ignore hide action on focus out in FF.        if (agent.isFF) {          return;        }        if (!e.relatedTarget || !dom.ancestor(e.relatedTarget, func.eq(self.$popover[0]))) {          self.hide();        }      }    };    this.shouldInitialize = function () {      return options.airMode && !list.isEmpty(options.popover.air);    };    this.initialize = function () {      this.$popover = ui.popover({        className: 'note-air-popover'      }).render().appendTo('body');      var $content = this.$popover.find('.popover-content');      context.invoke('buttons.build', $content, options.popover.air);    };    this.destroy = function () {      this.$popover.remove();    };    this.update = function () {      var styleInfo = context.invoke('editor.currentStyle');      if (styleInfo.range && !styleInfo.range.isCollapsed()) {        var rect = list.last(styleInfo.range.getClientRects());        if (rect) {          var bnd = func.rect2bnd(rect);          this.$popover.css({            display: 'block',            left: Math.max(bnd.left + bnd.width / 2, 0) - AIR_MODE_POPOVER_X_OFFSET,            top: bnd.top + bnd.height          });        }      } else {        this.hide();      }    };    this.hide = function () {      this.$popover.hide();    };  };  var HintPopover = function (context) {    var self = this;    var ui = $.summernote.ui;    var POPOVER_DIST = 5;    var hint = context.options.hint || [];    var direction = context.options.hintDirection || 'bottom';    var hints = $.isArray(hint) ? hint : [hint];    this.events = {      'summernote.keyup': function (we, e) {        if (!e.isDefaultPrevented()) {          self.handleKeyup(e);        }      },      'summernote.keydown': function (we, e) {        self.handleKeydown(e);      },      'summernote.dialog.shown': function () {        self.hide();      }    };    this.shouldInitialize = function () {      return hints.length > 0;    };    this.initialize = function () {      this.lastWordRange = null;      this.$popover = ui.popover({        className: 'note-hint-popover',        hideArrow: true,        direction: ''      }).render().appendTo('body');      this.$popover.hide();      this.$content = this.$popover.find('.popover-content');      this.$content.on('click', '.note-hint-item', function () {        self.$content.find('.active').removeClass('active');        $(this).addClass('active');        self.replace();      });    };    this.destroy = function () {      this.$popover.remove();    };    this.selectItem = function ($item) {      this.$content.find('.active').removeClass('active');      $item.addClass('active');      this.$content[0].scrollTop = $item[0].offsetTop - (this.$content.innerHeight() / 2);    };    this.moveDown = function () {      var $current = this.$content.find('.note-hint-item.active');      var $next = $current.next();      if ($next.length) {        this.selectItem($next);      } else {        var $nextGroup = $current.parent().next();        if (!$nextGroup.length) {          $nextGroup = this.$content.find('.note-hint-group').first();        }        this.selectItem($nextGroup.find('.note-hint-item').first());      }    };    this.moveUp = function () {      var $current = this.$content.find('.note-hint-item.active');      var $prev = $current.prev();      if ($prev.length) {        this.selectItem($prev);      } else {        var $prevGroup = $current.parent().prev();        if (!$prevGroup.length) {          $prevGroup = this.$content.find('.note-hint-group').last();        }        this.selectItem($prevGroup.find('.note-hint-item').last());      }    };    this.replace = function () {      var $item = this.$content.find('.note-hint-item.active');      if ($item.length) {        var node = this.nodeFromItem($item);        this.lastWordRange.insertNode(node);        range.createFromNode(node).collapse().select();        this.lastWordRange = null;        this.hide();        context.invoke('editor.focus');      }    };    this.nodeFromItem = function ($item) {      var hint = hints[$item.data('index')];      var item = $item.data('item');      var node = hint.content ? hint.content(item) : item;      if (typeof node === 'string') {        node = dom.createText(node);      }      return node;    };    this.createItemTemplates = function (hintIdx, items) {      var hint = hints[hintIdx];      return items.map(function (item, idx) {        var $item = $('<div class="note-hint-item"/>');        $item.append(hint.template ? hint.template(item) : item + '');        $item.data({          'index': hintIdx,          'item': item        });        if (hintIdx === 0 && idx === 0) {          $item.addClass('active');        }        return $item;      });    };    this.handleKeydown = function (e) {      if (!this.$popover.is(':visible')) {        return;      }      if (e.keyCode === key.code.ENTER) {        e.preventDefault();        this.replace();      } else if (e.keyCode === key.code.UP) {        e.preventDefault();        this.moveUp();      } else if (e.keyCode === key.code.DOWN) {        e.preventDefault();        this.moveDown();      }    };    this.searchKeyword = function (index, keyword, callback) {      var hint = hints[index];      if (hint && hint.match.test(keyword) && hint.search) {        var matches = hint.match.exec(keyword);        hint.search(matches[1], callback);      } else {        callback();      }    };    this.createGroup = function (idx, keyword) {      var $group = $('<div class="note-hint-group note-hint-group-' + idx + '"/>');      this.searchKeyword(idx, keyword, function (items) {        items = items || [];        if (items.length) {          $group.html(self.createItemTemplates(idx, items));          self.show();        }      });      return $group;    };    this.handleKeyup = function (e) {      if (list.contains([key.code.ENTER, key.code.UP, key.code.DOWN], e.keyCode)) {        if (e.keyCode === key.code.ENTER) {          if (this.$popover.is(':visible')) {            return;          }        }      } else {        var wordRange = context.invoke('editor.createRange').getWordRange();        var keyword = wordRange.toString();        if (hints.length && keyword) {          this.$content.empty();          var bnd = func.rect2bnd(list.last(wordRange.getClientRects()));          if (bnd) {            this.$popover.hide();            this.lastWordRange = wordRange;            hints.forEach(function (hint, idx) {              if (hint.match.test(keyword)) {                self.createGroup(idx, keyword).appendTo(self.$content);              }            });            // set position for popover after group is created            if (direction === 'top') {              this.$popover.css({                left: bnd.left,                top: bnd.top - this.$popover.outerHeight() - POPOVER_DIST              });            } else {              this.$popover.css({                left: bnd.left,                top: bnd.top + bnd.height + POPOVER_DIST              });            }          }        } else {          this.hide();        }      }    };    this.show = function () {      this.$popover.show();    };    this.hide = function () {      this.$popover.hide();    };  };  $.summernote = $.extend($.summernote, {    version: '0.8.1',    ui: ui,    plugins: {},    options: {      modules: {        'editor': Editor,        'clipboard': Clipboard,        'dropzone': Dropzone,        'codeview': Codeview,        'statusbar': Statusbar,        'fullscreen': Fullscreen,        'handle': Handle,        // FIXME: HintPopover must be front of autolink        //  - Script error about range when Enter key is pressed on hint popover        'hintPopover': HintPopover,        'autoLink': AutoLink,        'autoSync': AutoSync,        'placeholder': Placeholder,        'buttons': Buttons,        'toolbar': Toolbar,        'linkDialog': LinkDialog,        'linkPopover': LinkPopover,        'imageDialog': ImageDialog,        'imagePopover': ImagePopover,        'videoDialog': VideoDialog,        'helpDialog': HelpDialog,        'airPopover': AirPopover      },      buttons: {},            lang: 'en-US',      // toolbar      toolbar: [        ['style', ['style']],        ['font', ['bold', 'underline', 'clear']],        ['fontname', ['fontname']],        ['color', ['color']],        ['para', ['ul', 'ol', 'paragraph']],        ['table', ['table']],        ['insert', ['link', 'picture', 'video']],        ['view', ['fullscreen', 'codeview', 'help']]      ],      // popover      popover: {        image: [          ['imagesize', ['imageSize100', 'imageSize50', 'imageSize25']],          ['float', ['floatLeft', 'floatRight', 'floatNone']],          ['remove', ['removeMedia']]        ],        link: [          ['link', ['linkDialogShow', 'unlink']]        ],        air: [          ['color', ['color']],          ['font', ['bold', 'underline', 'clear']],          ['para', ['ul', 'paragraph']],          ['table', ['table']],          ['insert', ['link', 'picture']]        ]      },      // air mode: inline editor      airMode: false,      width: null,      height: null,      focus: false,      tabSize: 4,      styleWithSpan: true,      shortcuts: true,      textareaAutoSync: true,      direction: null,      styleTags: ['p', 'blockquote', 'pre', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6'],      fontNames: [        'Arial', 'Arial Black', 'Comic Sans MS', 'Courier New',        'Helvetica Neue', 'Helvetica', 'Impact', 'Lucida Grande',        'Tahoma', 'Times New Roman', 'Verdana'      ],      fontSizes: ['8', '9', '10', '11', '12', '14', '18', '24', '36'],      // pallete colors(n x n)      colors: [        ['#000000', '#424242', '#636363', '#9C9C94', '#CEC6CE', '#EFEFEF', '#F7F7F7', '#FFFFFF'],        ['#FF0000', '#FF9C00', '#FFFF00', '#00FF00', '#00FFFF', '#0000FF', '#9C00FF', '#FF00FF'],        ['#F7C6CE', '#FFE7CE', '#FFEFC6', '#D6EFD6', '#CEDEE7', '#CEE7F7', '#D6D6E7', '#E7D6DE'],        ['#E79C9C', '#FFC69C', '#FFE79C', '#B5D6A5', '#A5C6CE', '#9CC6EF', '#B5A5D6', '#D6A5BD'],        ['#E76363', '#F7AD6B', '#FFD663', '#94BD7B', '#73A5AD', '#6BADDE', '#8C7BC6', '#C67BA5'],        ['#CE0000', '#E79439', '#EFC631', '#6BA54A', '#4A7B8C', '#3984C6', '#634AA5', '#A54A7B'],        ['#9C0000', '#B56308', '#BD9400', '#397B21', '#104A5A', '#085294', '#311873', '#731842'],        ['#630000', '#7B3900', '#846300', '#295218', '#083139', '#003163', '#21104A', '#4A1031']      ],      lineHeights: ['1.0', '1.2', '1.4', '1.5', '1.6', '1.8', '2.0', '3.0'],      tableClassName: 'table table-bordered',      insertTableMaxSize: {        col: 10,        row: 10      },      dialogsInBody: false,      dialogsFade: false,      maximumImageFileSize: null,      callbacks: {        onInit: null,        onFocus: null,        onBlur: null,        onEnter: null,        onKeyup: null,        onKeydown: null,        onSubmit: null,        onImageUpload: null,        onImageUploadError: null      },      codemirror: {        mode: 'text/html',        htmlMode: true,        lineNumbers: true      },      keyMap: {        pc: {          'ENTER': 'insertParagraph',          'CTRL+Z': 'undo',          'CTRL+Y': 'redo',          'TAB': 'tab',          'SHIFT+TAB': 'untab',          'CTRL+B': 'bold',          'CTRL+I': 'italic',          'CTRL+U': 'underline',          'CTRL+SHIFT+S': 'strikethrough',          'CTRL+BACKSLASH': 'removeFormat',          'CTRL+SHIFT+L': 'justifyLeft',          'CTRL+SHIFT+E': 'justifyCenter',          'CTRL+SHIFT+R': 'justifyRight',          'CTRL+SHIFT+J': 'justifyFull',          'CTRL+SHIFT+NUM7': 'insertUnorderedList',          'CTRL+SHIFT+NUM8': 'insertOrderedList',          'CTRL+LEFTBRACKET': 'outdent',          'CTRL+RIGHTBRACKET': 'indent',          'CTRL+NUM0': 'formatPara',          'CTRL+NUM1': 'formatH1',          'CTRL+NUM2': 'formatH2',          'CTRL+NUM3': 'formatH3',          'CTRL+NUM4': 'formatH4',          'CTRL+NUM5': 'formatH5',          'CTRL+NUM6': 'formatH6',          'CTRL+ENTER': 'insertHorizontalRule',          'CTRL+K': 'linkDialog.show'        },        mac: {          'ENTER': 'insertParagraph',          'CMD+Z': 'undo',          'CMD+SHIFT+Z': 'redo',          'TAB': 'tab',          'SHIFT+TAB': 'untab',          'CMD+B': 'bold',          'CMD+I': 'italic',          'CMD+U': 'underline',          'CMD+SHIFT+S': 'strikethrough',          'CMD+BACKSLASH': 'removeFormat',          'CMD+SHIFT+L': 'justifyLeft',          'CMD+SHIFT+E': 'justifyCenter',          'CMD+SHIFT+R': 'justifyRight',          'CMD+SHIFT+J': 'justifyFull',          'CMD+SHIFT+NUM7': 'insertUnorderedList',          'CMD+SHIFT+NUM8': 'insertOrderedList',          'CMD+LEFTBRACKET': 'outdent',          'CMD+RIGHTBRACKET': 'indent',          'CMD+NUM0': 'formatPara',          'CMD+NUM1': 'formatH1',          'CMD+NUM2': 'formatH2',          'CMD+NUM3': 'formatH3',          'CMD+NUM4': 'formatH4',          'CMD+NUM5': 'formatH5',          'CMD+NUM6': 'formatH6',          'CMD+ENTER': 'insertHorizontalRule',          'CMD+K': 'linkDialog.show'        }      },      icons: {        'align': 'note-icon-align',        'alignCenter': 'note-icon-align-center',        'alignJustify': 'note-icon-align-justify',        'alignLeft': 'note-icon-align-left',        'alignRight': 'note-icon-align-right',        'indent': 'note-icon-align-indent',        'outdent': 'note-icon-align-outdent',        'arrowsAlt': 'note-icon-arrows-alt',        'bold': 'note-icon-bold',        'caret': 'note-icon-caret',        'circle': 'note-icon-circle',        'close': 'note-icon-close',        'code': 'note-icon-code',        'eraser': 'note-icon-eraser',        'font': 'note-icon-font',        'frame': 'note-icon-frame',        'italic': 'note-icon-italic',        'link': 'note-icon-link',        'unlink': 'note-icon-chain-broken',        'magic': 'note-icon-magic',        'menuCheck': 'note-icon-check',        'minus': 'note-icon-minus',        'orderedlist': 'note-icon-orderedlist',        'pencil': 'note-icon-pencil',        'picture': 'note-icon-picture',        'question': 'note-icon-question',        'redo': 'note-icon-redo',        'square': 'note-icon-square',        'strikethrough': 'note-icon-strikethrough',        'subscript': 'note-icon-subscript',        'superscript': 'note-icon-superscript',        'table': 'note-icon-table',        'textHeight': 'note-icon-text-height',        'trash': 'note-icon-trash',        'underline': 'note-icon-underline',        'undo': 'note-icon-undo',        'unorderedlist': 'note-icon-unorderedlist',        'video': 'note-icon-video'      }    }  });}));