X-Git-Url: https://jasonwoof.com/gitweb/?a=blobdiff_plain;f=_source%2Fcore%2Fdom%2Felement.js;fp=_source%2Fcore%2Fdom%2Felement.js;h=0000000000000000000000000000000000000000;hb=4625dba05116026713fee9008dd93306be0d1553;hp=bb315a4b07ee18e397eb5f17a0b12196358fee19;hpb=3fe9cac293e090ea459a3ee10d78cbe9e1dd0e03;p=ckeditor.git

diff --git a/_source/core/dom/element.js b/_source/core/dom/element.js
deleted file mode 100644
index bb315a4..0000000
--- a/_source/core/dom/element.js
+++ /dev/null
@@ -1,1844 +0,0 @@
-/*
-Copyright (c) 2003-2013, CKSource - Frederico Knabben. All rights reserved.
-For licensing, see LICENSE.html or http://ckeditor.com/license
-*/
-
-/**
- * @fileOverview Defines the {@link CKEDITOR.dom.element} class, which
- *		represents a DOM element.
- */
-
-/**
- * Represents a DOM element.
- * @constructor
- * @augments CKEDITOR.dom.node
- * @param {Object|String} element A native DOM element or the element name for
- *		new elements.
- * @param {CKEDITOR.dom.document} [ownerDocument] The document that will contain
- *		the element in case of element creation.
- * @example
- * // Create a new <span> element.
- * var element = new CKEDITOR.dom.element( 'span' );
- * @example
- * // Create an element based on a native DOM element.
- * var element = new CKEDITOR.dom.element( document.getElementById( 'myId' ) );
- */
-CKEDITOR.dom.element = function( element, ownerDocument )
-{
-	if ( typeof element == 'string' )
-		element = ( ownerDocument ? ownerDocument.$ : document ).createElement( element );
-
-	// Call the base constructor (we must not call CKEDITOR.dom.node).
-	CKEDITOR.dom.domObject.call( this, element );
-};
-
-// PACKAGER_RENAME( CKEDITOR.dom.element )
-
-/**
- * The the {@link CKEDITOR.dom.element} representing and element. If the
- * element is a native DOM element, it will be transformed into a valid
- * CKEDITOR.dom.element object.
- * @returns {CKEDITOR.dom.element} The transformed element.
- * @example
- * var element = new CKEDITOR.dom.element( 'span' );
- * alert( element == <b>CKEDITOR.dom.element.get( element )</b> );  "true"
- * @example
- * var element = document.getElementById( 'myElement' );
- * alert( <b>CKEDITOR.dom.element.get( element )</b>.getName() );  e.g. "p"
- */
-CKEDITOR.dom.element.get = function( element )
-{
-	return element && ( element.$ ? element : new CKEDITOR.dom.element( element ) );
-};
-
-CKEDITOR.dom.element.prototype = new CKEDITOR.dom.node();
-
-/**
- * Creates an instance of the {@link CKEDITOR.dom.element} class based on the
- * HTML representation of an element.
- * @param {String} html The element HTML. It should define only one element in
- *		the "root" level. The "root" element can have child nodes, but not
- *		siblings.
- * @returns {CKEDITOR.dom.element} The element instance.
- * @example
- * var element = <b>CKEDITOR.dom.element.createFromHtml( '&lt;strong class="anyclass"&gt;My element&lt;/strong&gt;' )</b>;
- * alert( element.getName() );  // "strong"
- */
-CKEDITOR.dom.element.createFromHtml = function( html, ownerDocument )
-{
-	var temp = new CKEDITOR.dom.element( 'div', ownerDocument );
-	temp.setHtml( html );
-
-	// When returning the node, remove it from its parent to detach it.
-	return temp.getFirst().remove();
-};
-
-CKEDITOR.dom.element.setMarker = function( database, element, name, value )
-{
-	var id = element.getCustomData( 'list_marker_id' ) ||
-			( element.setCustomData( 'list_marker_id', CKEDITOR.tools.getNextNumber() ).getCustomData( 'list_marker_id' ) ),
-		markerNames = element.getCustomData( 'list_marker_names' ) ||
-			( element.setCustomData( 'list_marker_names', {} ).getCustomData( 'list_marker_names' ) );
-	database[id] = element;
-	markerNames[name] = 1;
-
-	return element.setCustomData( name, value );
-};
-
-CKEDITOR.dom.element.clearAllMarkers = function( database )
-{
-	for ( var i in database )
-		CKEDITOR.dom.element.clearMarkers( database, database[i], 1 );
-};
-
-CKEDITOR.dom.element.clearMarkers = function( database, element, removeFromDatabase )
-{
-	var names = element.getCustomData( 'list_marker_names' ),
-		id = element.getCustomData( 'list_marker_id' );
-	for ( var i in names )
-		element.removeCustomData( i );
-	element.removeCustomData( 'list_marker_names' );
-	if ( removeFromDatabase )
-	{
-		element.removeCustomData( 'list_marker_id' );
-		delete database[id];
-	}
-};
-
-( function()
-{
-
-CKEDITOR.tools.extend( CKEDITOR.dom.element.prototype,
-	/** @lends CKEDITOR.dom.element.prototype */
-	{
-		/**
-		 * The node type. This is a constant value set to
-		 * {@link CKEDITOR.NODE_ELEMENT}.
-		 * @type Number
-		 * @example
-		 */
-		type : CKEDITOR.NODE_ELEMENT,
-
-		/**
-		 * Adds a CSS class to the element. It appends the class to the
-		 * already existing names.
-		 * @param {String} className The name of the class to be added.
-		 * @example
-		 * var element = new CKEDITOR.dom.element( 'div' );
-		 * element.addClass( 'classA' );  // &lt;div class="classA"&gt;
-		 * element.addClass( 'classB' );  // &lt;div class="classA classB"&gt;
-		 * element.addClass( 'classA' );  // &lt;div class="classA classB"&gt;
-		 */
-		addClass : function( className )
-		{
-			var c = this.$.className;
-			if ( c )
-			{
-				var regex = new RegExp( '(?:^|\\s)' + className + '(?:\\s|$)', '' );
-				if ( !regex.test( c ) )
-					c += ' ' + className;
-			}
-			this.$.className = c || className;
-		},
-
-		/**
-		 * Removes a CSS class name from the elements classes. Other classes
-		 * remain untouched.
-		 * @param {String} className The name of the class to remove.
-		 * @example
-		 * var element = new CKEDITOR.dom.element( 'div' );
-		 * element.addClass( 'classA' );  // &lt;div class="classA"&gt;
-		 * element.addClass( 'classB' );  // &lt;div class="classA classB"&gt;
-		 * element.removeClass( 'classA' );  // &lt;div class="classB"&gt;
-		 * element.removeClass( 'classB' );  // &lt;div&gt;
-		 */
-		removeClass : function( className )
-		{
-			var c = this.getAttribute( 'class' );
-			if ( c )
-			{
-				var regex = new RegExp( '(?:^|\\s+)' + className + '(?=\\s|$)', 'i' );
-				if ( regex.test( c ) )
-				{
-					c = c.replace( regex, '' ).replace( /^\s+/, '' );
-
-					if ( c )
-						this.setAttribute( 'class', c );
-					else
-						this.removeAttribute( 'class' );
-				}
-			}
-		},
-
-		hasClass : function( className )
-		{
-			var regex = new RegExp( '(?:^|\\s+)' + className + '(?=\\s|$)', '' );
-			return regex.test( this.getAttribute('class') );
-		},
-
-		/**
-		 * Append a node as a child of this element.
-		 * @param {CKEDITOR.dom.node|String} node The node or element name to be
-		 *		appended.
-		 * @param {Boolean} [toStart] Indicates that the element is to be
-		 *		appended at the start.
-		 * @returns {CKEDITOR.dom.node} The appended node.
-		 * @example
-		 * var p = new CKEDITOR.dom.element( 'p' );
-		 *
-		 * var strong = new CKEDITOR.dom.element( 'strong' );
-		 * <b>p.append( strong );</b>
-		 *
-		 * var em = <b>p.append( 'em' );</b>
-		 *
-		 * // result: "&lt;p&gt;&lt;strong&gt;&lt;/strong&gt;&lt;em&gt;&lt;/em&gt;&lt;/p&gt;"
-		 */
-		append : function( node, toStart )
-		{
-			if ( typeof node == 'string' )
-				node = this.getDocument().createElement( node );
-
-			if ( toStart )
-				this.$.insertBefore( node.$, this.$.firstChild );
-			else
-				this.$.appendChild( node.$ );
-
-			return node;
-		},
-
-		appendHtml : function( html )
-		{
-			if ( !this.$.childNodes.length )
-				this.setHtml( html );
-			else
-			{
-				var temp = new CKEDITOR.dom.element( 'div', this.getDocument() );
-				temp.setHtml( html );
-				temp.moveChildren( this );
-			}
-		},
-
-		/**
-		 * Append text to this element.
-		 * @param {String} text The text to be appended.
-		 * @returns {CKEDITOR.dom.node} The appended node.
-		 * @example
-		 * var p = new CKEDITOR.dom.element( 'p' );
-		 * p.appendText( 'This is' );
-		 * p.appendText( ' some text' );
-		 *
-		 * // result: "&lt;p&gt;This is some text&lt;/p&gt;"
-		 */
-		appendText : function( text )
-		{
-			if ( this.$.text != undefined )
-				this.$.text += text;
-			else
-				this.append( new CKEDITOR.dom.text( text ) );
-		},
-
-		appendBogus : function()
-		{
-			var lastChild = this.getLast() ;
-
-			// Ignore empty/spaces text.
-			while ( lastChild && lastChild.type == CKEDITOR.NODE_TEXT && !CKEDITOR.tools.rtrim( lastChild.getText() ) )
-				lastChild = lastChild.getPrevious();
-			if ( !lastChild || !lastChild.is || !lastChild.is( 'br' ) )
-			{
-				var bogus = CKEDITOR.env.opera ?
-						this.getDocument().createText('') :
-						this.getDocument().createElement( 'br' );
-
-				CKEDITOR.env.gecko && bogus.setAttribute( 'type', '_moz' );
-
-				this.append( bogus );
-			}
-		},
-
-		/**
-		 * Breaks one of the ancestor element in the element position, moving
-		 * this element between the broken parts.
-		 * @param {CKEDITOR.dom.element} parent The anscestor element to get broken.
-		 * @example
-		 * // Before breaking:
-		 * //     &lt;b&gt;This &lt;i&gt;is some&lt;span /&gt; sample&lt;/i&gt; test text&lt;/b&gt;
-		 * // If "element" is &lt;span /&gt; and "parent" is &lt;i&gt;:
-		 * //     &lt;b&gt;This &lt;i&gt;is some&lt;/i&gt;&lt;span /&gt;&lt;i&gt; sample&lt;/i&gt; test text&lt;/b&gt;
-		 * element.breakParent( parent );
-		 * @example
-		 * // Before breaking:
-		 * //     &lt;b&gt;This &lt;i&gt;is some&lt;span /&gt; sample&lt;/i&gt; test text&lt;/b&gt;
-		 * // If "element" is &lt;span /&gt; and "parent" is &lt;b&gt;:
-		 * //     &lt;b&gt;This &lt;i&gt;is some&lt;/i&gt;&lt;/b&gt;&lt;span /&gt;&lt;b&gt;&lt;i&gt; sample&lt;/i&gt; test text&lt;/b&gt;
-		 * element.breakParent( parent );
-		 */
-		breakParent : function( parent )
-		{
-			var range = new CKEDITOR.dom.range( this.getDocument() );
-
-			// We'll be extracting part of this element, so let's use our
-			// range to get the correct piece.
-			range.setStartAfter( this );
-			range.setEndAfter( parent );
-
-			// Extract it.
-			var docFrag = range.extractContents();
-
-			// Move the element outside the broken element.
-			range.insertNode( this.remove() );
-
-			// Re-insert the extracted piece after the element.
-			docFrag.insertAfterNode( this );
-		},
-
-		contains :
-			CKEDITOR.env.ie || CKEDITOR.env.webkit ?
-				function( node )
-				{
-					var $ = this.$;
-
-					return node.type != CKEDITOR.NODE_ELEMENT ?
-						$.contains( node.getParent().$ ) :
-						$ != node.$ && $.contains( node.$ );
-				}
-			:
-				function( node )
-				{
-					return !!( this.$.compareDocumentPosition( node.$ ) & 16 );
-				},
-
-		/**
-		 * Moves the selection focus to this element.
-		 * @function
-		 * @param  {Boolean} defer Whether to asynchronously defer the
-		 * 		execution by 100 ms.
-		 * @example
-		 * var element = CKEDITOR.document.getById( 'myTextarea' );
-		 * <b>element.focus()</b>;
-		 */
-		focus : ( function()
-		{
-			function exec()
-			{
-			// IE throws error if the element is not visible.
-			try
-			{
-				this.$.focus();
-			}
-			catch (e)
-			{}
-			}
-
-			return function( defer )
-			{
-				if ( defer )
-					CKEDITOR.tools.setTimeout( exec, 100, this );
-				else
-					exec.call( this );
-			};
-		})(),
-
-		/**
-		 * Gets the inner HTML of this element.
-		 * @returns {String} The inner HTML of this element.
-		 * @example
-		 * var element = CKEDITOR.dom.element.createFromHtml( '&lt;div&gt;&lt;b&gt;Example&lt;/b&gt;&lt;/div&gt;' );
-		 * alert( <b>p.getHtml()</b> );  // "&lt;b&gt;Example&lt;/b&gt;"
-		 */
-		getHtml : function()
-		{
-			var retval = this.$.innerHTML;
-			// Strip <?xml:namespace> tags in IE. (#3341).
-			return CKEDITOR.env.ie ? retval.replace( /<\?[^>]*>/g, '' ) : retval;
-		},
-
-		getOuterHtml : function()
-		{
-			if ( this.$.outerHTML )
-			{
-				// IE includes the <?xml:namespace> tag in the outerHTML of
-				// namespaced element. So, we must strip it here. (#3341)
-				return this.$.outerHTML.replace( /<\?[^>]*>/, '' );
-			}
-
-			var tmpDiv = this.$.ownerDocument.createElement( 'div' );
-			tmpDiv.appendChild( this.$.cloneNode( true ) );
-			return tmpDiv.innerHTML;
-		},
-
-		/**
-		 * Sets the inner HTML of this element.
-		 * @param {String} html The HTML to be set for this element.
-		 * @returns {String} The inserted HTML.
-		 * @example
-		 * var p = new CKEDITOR.dom.element( 'p' );
-		 * <b>p.setHtml( '&lt;b&gt;Inner&lt;/b&gt; HTML' );</b>
-		 *
-		 * // result: "&lt;p&gt;&lt;b&gt;Inner&lt;/b&gt; HTML&lt;/p&gt;"
-		 */
-		setHtml : function( html )
-		{
-			return ( this.$.innerHTML = html );
-		},
-
-		/**
-		 * Sets the element contents as plain text.
-		 * @param {String} text The text to be set.
-		 * @returns {String} The inserted text.
-		 * @example
-		 * var element = new CKEDITOR.dom.element( 'div' );
-		 * element.setText( 'A > B & C < D' );
-		 * alert( element.innerHTML );  // "A &amp;gt; B &amp;amp; C &amp;lt; D"
-		 */
-		setText : function( text )
-		{
-			CKEDITOR.dom.element.prototype.setText = ( this.$.innerText != undefined ) ?
-				function ( text )
-				{
-					return this.$.innerText = text;
-				} :
-				function ( text )
-				{
-					return this.$.textContent = text;
-				};
-
-			return this.setText( text );
-		},
-
-		/**
-		 * Gets the value of an element attribute.
-		 * @function
-		 * @param {String} name The attribute name.
-		 * @returns {String} The attribute value or null if not defined.
-		 * @example
-		 * var element = CKEDITOR.dom.element.createFromHtml( '&lt;input type="text" /&gt;' );
-		 * alert( <b>element.getAttribute( 'type' )</b> );  // "text"
-		 */
-		getAttribute : (function()
-		{
-			var standard = function( name )
-			{
-				return this.$.getAttribute( name, 2 );
-			};
-
-			if ( CKEDITOR.env.ie && ( CKEDITOR.env.ie7Compat || CKEDITOR.env.ie6Compat ) )
-			{
-				return function( name )
-				{
-					switch ( name )
-					{
-						case 'class':
-							name = 'className';
-							break;
-
-						case 'http-equiv':
-							name = 'httpEquiv';
-							break;
-
-						case 'name':
-							return this.$.name;
-
-						case 'tabindex':
-							var tabIndex = standard.call( this, name );
-
-							// IE returns tabIndex=0 by default for all
-							// elements. For those elements,
-							// getAtrribute( 'tabindex', 2 ) returns 32768
-							// instead. So, we must make this check to give a
-							// uniform result among all browsers.
-							if ( tabIndex !== 0 && this.$.tabIndex === 0 )
-								tabIndex = null;
-
-							return tabIndex;
-							break;
-
-						case 'checked':
-						{
-							var attr = this.$.attributes.getNamedItem( name ),
-								attrValue = attr.specified ? attr.nodeValue     // For value given by parser.
-															 : this.$.checked;  // For value created via DOM interface.
-
-							return attrValue ? 'checked' : null;
-						}
-
-						case 'hspace':
-						case 'value':
-							return this.$[ name ];
-
-						case 'style':
-							// IE does not return inline styles via getAttribute(). See #2947.
-							return this.$.style.cssText;
-
-						case 'contenteditable':
-						case 'contentEditable':
-							return this.$.attributes.getNamedItem( 'contentEditable' ).specified ?
-									this.$.getAttribute( 'contentEditable' ) : null;
-					}
-
-					return standard.call( this, name );
-				};
-			}
-			else
-				return standard;
-		})(),
-
-		getChildren : function()
-		{
-			return new CKEDITOR.dom.nodeList( this.$.childNodes );
-		},
-
-		/**
-		 * Gets the current computed value of one of the element CSS style
-		 * properties.
-		 * @function
-		 * @param {String} propertyName The style property name.
-		 * @returns {String} The property value.
-		 * @example
-		 * var element = new CKEDITOR.dom.element( 'span' );
-		 * alert( <b>element.getComputedStyle( 'display' )</b> );  // "inline"
-		 */
-		getComputedStyle :
-			CKEDITOR.env.ie ?
-				function( propertyName )
-				{
-					return this.$.currentStyle[ CKEDITOR.tools.cssStyleToDomStyle( propertyName ) ];
-				}
-			:
-				function( propertyName )
-				{
-					var style = this.getWindow().$.getComputedStyle( this.$, null );
-
-					// Firefox may return null if we call the above on a hidden iframe. (#9117)
-					return style ? style.getPropertyValue( propertyName ) : '';
-				},
-
-		/**
-		 * Gets the DTD entries for this element.
-		 * @returns {Object} An object containing the list of elements accepted
-		 *		by this element.
-		 */
-		getDtd : function()
-		{
-			var dtd = CKEDITOR.dtd[ this.getName() ];
-
-			this.getDtd = function()
-			{
-				return dtd;
-			};
-
-			return dtd;
-		},
-
-		getElementsByTag : CKEDITOR.dom.document.prototype.getElementsByTag,
-
-		/**
-		 * Gets the computed tabindex for this element.
-		 * @function
-		 * @returns {Number} The tabindex value.
-		 * @example
-		 * var element = CKEDITOR.document.getById( 'myDiv' );
-		 * alert( <b>element.getTabIndex()</b> );  // e.g. "-1"
-		 */
-		getTabIndex :
-			CKEDITOR.env.ie ?
-				function()
-				{
-					var tabIndex = this.$.tabIndex;
-
-					// IE returns tabIndex=0 by default for all elements. In
-					// those cases we must check that the element really has
-					// the tabindex attribute set to zero, or it is one of
-					// those element that should have zero by default.
-					if ( tabIndex === 0 && !CKEDITOR.dtd.$tabIndex[ this.getName() ] && parseInt( this.getAttribute( 'tabindex' ), 10 ) !== 0 )
-						tabIndex = -1;
-
-						return tabIndex;
-				}
-			: CKEDITOR.env.webkit ?
-				function()
-				{
-					var tabIndex = this.$.tabIndex;
-
-					// Safari returns "undefined" for elements that should not
-					// have tabindex (like a div). So, we must try to get it
-					// from the attribute.
-					// https://bugs.webkit.org/show_bug.cgi?id=20596
-					if ( tabIndex == undefined )
-					{
-						tabIndex = parseInt( this.getAttribute( 'tabindex' ), 10 );
-
-						// If the element don't have the tabindex attribute,
-						// then we should return -1.
-						if ( isNaN( tabIndex ) )
-							tabIndex = -1;
-					}
-
-					return tabIndex;
-				}
-			:
-				function()
-				{
-					return this.$.tabIndex;
-				},
-
-		/**
-		 * Gets the text value of this element.
-		 *
-		 * Only in IE (which uses innerText), &lt;br&gt; will cause linebreaks,
-		 * and sucessive whitespaces (including line breaks) will be reduced to
-		 * a single space. This behavior is ok for us, for now. It may change
-		 * in the future.
-		 * @returns {String} The text value.
-		 * @example
-		 * var element = CKEDITOR.dom.element.createFromHtml( '&lt;div&gt;Sample &lt;i&gt;text&lt;/i&gt;.&lt;/div&gt;' );
-		 * alert( <b>element.getText()</b> );  // "Sample text."
-		 */
-		getText : function()
-		{
-			return this.$.textContent || this.$.innerText || '';
-		},
-
-		/**
-		 * Gets the window object that contains this element.
-		 * @returns {CKEDITOR.dom.window} The window object.
-		 * @example
-		 */
-		getWindow : function()
-		{
-			return this.getDocument().getWindow();
-		},
-
-		/**
-		 * Gets the value of the "id" attribute of this element.
-		 * @returns {String} The element id, or null if not available.
-		 * @example
-		 * var element = CKEDITOR.dom.element.createFromHtml( '&lt;p id="myId"&gt;&lt;/p&gt;' );
-		 * alert( <b>element.getId()</b> );  // "myId"
-		 */
-		getId : function()
-		{
-			return this.$.id || null;
-		},
-
-		/**
-		 * Gets the value of the "name" attribute of this element.
-		 * @returns {String} The element name, or null if not available.
-		 * @example
-		 * var element = CKEDITOR.dom.element.createFromHtml( '&lt;input name="myName"&gt;&lt;/input&gt;' );
-		 * alert( <b>element.getNameAtt()</b> );  // "myName"
-		 */
-		getNameAtt : function()
-		{
-			return this.$.name || null;
-		},
-
-		/**
-		 * Gets the element name (tag name). The returned name is guaranteed to
-		 * be always full lowercased.
-		 * @returns {String} The element name.
-		 * @example
-		 * var element = new CKEDITOR.dom.element( 'span' );
-		 * alert( <b>element.getName()</b> );  // "span"
-		 */
-		getName : function()
-		{
-			// Cache the lowercased name inside a closure.
-			var nodeName = this.$.nodeName.toLowerCase();
-
-			if ( CKEDITOR.env.ie && ! ( document.documentMode > 8 ) )
-			{
-				var scopeName = this.$.scopeName;
-				if ( scopeName != 'HTML' )
-					nodeName = scopeName.toLowerCase() + ':' + nodeName;
-			}
-
-			return (
-			this.getName = function()
-				{
-					return nodeName;
-				})();
-		},
-
-		/**
-		 * Gets the value set to this element. This value is usually available
-		 * for form field elements.
-		 * @returns {String} The element value.
-		 */
-		getValue : function()
-		{
-			return this.$.value;
-		},
-
-		/**
-		 * Gets the first child node of this element.
-		 * @param {Function} evaluator Filtering the result node.
-		 * @returns {CKEDITOR.dom.node} The first child node or null if not
-		 *		available.
-		 * @example
-		 * var element = CKEDITOR.dom.element.createFromHtml( '&lt;div&gt;&lt;b&gt;Example&lt;/b&gt;&lt;/div&gt;' );
-		 * var first = <b>element.getFirst()</b>;
-		 * alert( first.getName() );  // "b"
-		 */
-		getFirst : function( evaluator )
-		{
-			var first = this.$.firstChild,
-				retval = first && new CKEDITOR.dom.node( first );
-			if ( retval && evaluator && !evaluator( retval ) )
-				retval = retval.getNext( evaluator );
-
-			return retval;
-		},
-
-		/**
-		 * @param {Function} evaluator Filtering the result node.
-		 */
-		getLast : function( evaluator )
-		{
-			var last = this.$.lastChild,
-				retval = last && new CKEDITOR.dom.node( last );
-			if ( retval && evaluator && !evaluator( retval ) )
-				retval = retval.getPrevious( evaluator );
-
-			return retval;
-		},
-
-		getStyle : function( name )
-		{
-			return this.$.style[ CKEDITOR.tools.cssStyleToDomStyle( name ) ];
-		},
-
-		/**
-		 * Checks if the element name matches one or more names.
-		 * @param {String} name[,name[,...]] One or more names to be checked.
-		 * @returns {Boolean} true if the element name matches any of the names.
-		 * @example
-		 * var element = new CKEDITOR.element( 'span' );
-		 * alert( <b>element.is( 'span' )</b> );  "true"
-		 * alert( <b>element.is( 'p', 'span' )</b> );  "true"
-		 * alert( <b>element.is( 'p' )</b> );  "false"
-		 * alert( <b>element.is( 'p', 'div' )</b> );  "false"
-		 */
-		is : function()
-		{
-			var name = this.getName();
-			for ( var i = 0 ; i < arguments.length ; i++ )
-			{
-				if ( arguments[ i ] == name )
-					return true;
-			}
-			return false;
-		},
-
-		/**
-		 * Decide whether one element is able to receive cursor.
-		 * @param {Boolean} [textCursor=true] Only consider element that could receive text child.
-		 */
-		isEditable : function( textCursor )
-		{
-			var name = this.getName();
-
-			if ( this.isReadOnly()
-					|| this.getComputedStyle( 'display' ) == 'none'
-					|| this.getComputedStyle( 'visibility' ) == 'hidden'
-				 	|| this.is( 'a' ) && this.data( 'cke-saved-name' ) && !this.getChildCount()
-					|| CKEDITOR.dtd.$nonEditable[ name ]
-					|| CKEDITOR.dtd.$empty[ name ] )
-			{
-				return false;
-			}
-
-			if ( textCursor !== false )
-			{
-				// Get the element DTD (defaults to span for unknown elements).
-				var dtd = CKEDITOR.dtd[ name ] || CKEDITOR.dtd.span;
-				// In the DTD # == text node.
-				return ( dtd && dtd[ '#'] );
-			}
-
-			return true;
-		},
-
-		isIdentical : function( otherElement )
-		{
-			if ( this.getName() != otherElement.getName() )
-				return false;
-
-			var thisAttribs = this.$.attributes,
-				otherAttribs = otherElement.$.attributes;
-
-			var thisLength = thisAttribs.length,
-				otherLength = otherAttribs.length;
-
-			for ( var i = 0 ; i < thisLength ; i++ )
-			{
-				var attribute = thisAttribs[ i ];
-
-				if ( attribute.nodeName == '_moz_dirty' )
-					continue;
-
-				if ( ( !CKEDITOR.env.ie || ( attribute.specified && attribute.nodeName != 'data-cke-expando' ) ) && attribute.nodeValue != otherElement.getAttribute( attribute.nodeName ) )
-					return false;
-			}
-
-			// For IE, we have to for both elements, because it's difficult to
-			// know how the atttibutes collection is organized in its DOM.
-			if ( CKEDITOR.env.ie )
-			{
-				for ( i = 0 ; i < otherLength ; i++ )
-				{
-					attribute = otherAttribs[ i ];
-					if ( attribute.specified && attribute.nodeName != 'data-cke-expando'
-							&& attribute.nodeValue != this.getAttribute( attribute.nodeName ) )
-						return false;
-				}
-			}
-
-			return true;
-		},
-
-		/**
-		 * Checks if this element is visible. May not work if the element is
-		 * child of an element with visibility set to "hidden", but works well
-		 * on the great majority of cases.
-		 * @return {Boolean} True if the element is visible.
-		 */
-		isVisible : function()
-		{
-			var isVisible = ( this.$.offsetHeight || this.$.offsetWidth ) && this.getComputedStyle( 'visibility' ) != 'hidden',
-				elementWindow,
-				elementWindowFrame;
-
-			// Webkit and Opera report non-zero offsetHeight despite that
-			// element is inside an invisible iframe. (#4542)
-			if ( isVisible && ( CKEDITOR.env.webkit || CKEDITOR.env.opera ) )
-			{
-				elementWindow = this.getWindow();
-
-				if ( !elementWindow.equals( CKEDITOR.document.getWindow() )
-						&& ( elementWindowFrame = elementWindow.$.frameElement ) )
-				{
-					isVisible = new CKEDITOR.dom.element( elementWindowFrame ).isVisible();
-				}
-			}
-
-			return !!isVisible;
-		},
-
-		/**
-		 * Whether it's an empty inline elements which has no visual impact when removed.
-		 */
-		isEmptyInlineRemoveable : function()
-		{
-			if ( !CKEDITOR.dtd.$removeEmpty[ this.getName() ] )
-				return false;
-
-			var children = this.getChildren();
-			for ( var i = 0, count = children.count(); i < count; i++ )
-			{
-				var child = children.getItem( i );
-
-				if ( child.type == CKEDITOR.NODE_ELEMENT && child.data( 'cke-bookmark' ) )
-					continue;
-
-				if ( child.type == CKEDITOR.NODE_ELEMENT && !child.isEmptyInlineRemoveable()
-					|| child.type == CKEDITOR.NODE_TEXT && CKEDITOR.tools.trim( child.getText() ) )
-				{
-					return false;
-				}
-			}
-			return true;
-		},
-
-		/**
-		 * Checks if the element has any defined attributes.
-		 * @function
-		 * @returns {Boolean} True if the element has attributes.
-		 * @example
-		 * var element = CKEDITOR.dom.element.createFromHtml( '&lt;div title="Test"&gt;Example&lt;/div&gt;' );
-		 * alert( <b>element.hasAttributes()</b> );  // "true"
-		 * @example
-		 * var element = CKEDITOR.dom.element.createFromHtml( '&lt;div&gt;Example&lt;/div&gt;' );
-		 * alert( <b>element.hasAttributes()</b> );  // "false"
-		 */
-		hasAttributes :
-			CKEDITOR.env.ie && ( CKEDITOR.env.ie7Compat || CKEDITOR.env.ie6Compat ) ?
-				function()
-				{
-					var attributes = this.$.attributes;
-
-					for ( var i = 0 ; i < attributes.length ; i++ )
-					{
-						var attribute = attributes[i];
-
-						switch ( attribute.nodeName )
-						{
-							case 'class' :
-								// IE has a strange bug. If calling removeAttribute('className'),
-								// the attributes collection will still contain the "class"
-								// attribute, which will be marked as "specified", even if the
-								// outerHTML of the element is not displaying the class attribute.
-								// Note : I was not able to reproduce it outside the editor,
-								// but I've faced it while working on the TC of #1391.
-								if ( this.getAttribute( 'class' ) )
-									return true;
-
-							// Attributes to be ignored.
-							case 'data-cke-expando' :
-								continue;
-
-							/*jsl:fallthru*/
-
-							default :
-								if ( attribute.specified )
-									return true;
-						}
-					}
-
-					return false;
-				}
-			:
-				function()
-				{
-					var attrs = this.$.attributes,
-						attrsNum = attrs.length;
-
-					// The _moz_dirty attribute might get into the element after pasting (#5455)
-					var execludeAttrs = { 'data-cke-expando' : 1, _moz_dirty : 1 };
-
-					return attrsNum > 0 &&
-						( attrsNum > 2 ||
-							!execludeAttrs[ attrs[0].nodeName ] ||
-							( attrsNum == 2 && !execludeAttrs[ attrs[1].nodeName ] ) );
-				},
-
-		/**
-		 * Checks if the specified attribute is defined for this element.
-		 * @returns {Boolean} True if the specified attribute is defined.
-		 * @param {String} name The attribute name.
-		 * @example
-		 */
-		hasAttribute : (function()
-		{
-			function standard( name )
-			{
-				var $attr = this.$.attributes.getNamedItem( name );
-				return !!( $attr && $attr.specified );
-			}
-
-			return ( CKEDITOR.env.ie && CKEDITOR.env.version < 8 ) ?
-					function( name )
-					{
-						// On IE < 8 the name attribute cannot be retrieved
-						// right after the element creation and setting the
-						// name with setAttribute.
-						if ( name == 'name' )
-							return !!this.$.name;
-
-						return standard.call( this, name );
-					}
-				:
-					standard;
-		})(),
-
-		/**
-		 * Hides this element (display:none).
-		 * @example
-		 * var element = CKEDITOR.dom.element.getById( 'myElement' );
-		 * <b>element.hide()</b>;
-		 */
-		hide : function()
-		{
-			this.setStyle( 'display', 'none' );
-		},
-
-		moveChildren : function( target, toStart )
-		{
-			var $ = this.$;
-			target = target.$;
-
-			if ( $ == target )
-				return;
-
-			var child;
-
-			if ( toStart )
-			{
-				while ( ( child = $.lastChild ) )
-					target.insertBefore( $.removeChild( child ), target.firstChild );
-			}
-			else
-			{
-				while ( ( child = $.firstChild ) )
-					target.appendChild( $.removeChild( child ) );
-			}
-		},
-
-		/**
-		 * Merges sibling elements that are identical to this one.<br>
-		 * <br>
-		 * Identical child elements are also merged. For example:<br>
-		 * &lt;b&gt;&lt;i&gt;&lt;/i&gt;&lt;/b&gt;&lt;b&gt;&lt;i&gt;&lt;/i&gt;&lt;/b&gt; =&gt; &lt;b&gt;&lt;i&gt;&lt;/i&gt;&lt;/b&gt;
-		 * @function
-		 * @param {Boolean} [inlineOnly] Allow only inline elements to be merged. Defaults to "true".
-		 */
-		mergeSiblings : ( function()
-		{
-			function mergeElements( element, sibling, isNext )
-			{
-				if ( sibling && sibling.type == CKEDITOR.NODE_ELEMENT )
-				{
-					// Jumping over bookmark nodes and empty inline elements, e.g. <b><i></i></b>,
-					// queuing them to be moved later. (#5567)
-					var pendingNodes = [];
-
-					while ( sibling.data( 'cke-bookmark' )
-						|| sibling.isEmptyInlineRemoveable() )
-					{
-						pendingNodes.push( sibling );
-						sibling = isNext ? sibling.getNext() : sibling.getPrevious();
-						if ( !sibling || sibling.type != CKEDITOR.NODE_ELEMENT )
-							return;
-					}
-
-					if ( element.isIdentical( sibling ) )
-					{
-						// Save the last child to be checked too, to merge things like
-						// <b><i></i></b><b><i></i></b> => <b><i></i></b>
-						var innerSibling = isNext ? element.getLast() : element.getFirst();
-
-						// Move pending nodes first into the target element.
-						while( pendingNodes.length )
-							pendingNodes.shift().move( element, !isNext );
-
-						sibling.moveChildren( element, !isNext );
-						sibling.remove();
-
-						// Now check the last inner child (see two comments above).
-						if ( innerSibling && innerSibling.type == CKEDITOR.NODE_ELEMENT )
-							innerSibling.mergeSiblings();
-					}
-				}
-			}
-
-			return function( inlineOnly )
-				{
-					if ( ! ( inlineOnly === false
-							|| CKEDITOR.dtd.$removeEmpty[ this.getName() ]
-							|| this.is( 'a' ) ) )	// Merge empty links and anchors also. (#5567)
-					{
-						return;
-					}
-
-					mergeElements( this, this.getNext(), true );
-					mergeElements( this, this.getPrevious() );
-				};
-		} )(),
-
-		/**
-		 * Shows this element (display it).
-		 * @example
-		 * var element = CKEDITOR.dom.element.getById( 'myElement' );
-		 * <b>element.show()</b>;
-		 */
-		show : function()
-		{
-			this.setStyles(
-				{
-					display : '',
-					visibility : ''
-				});
-		},
-
-		/**
-		 * Sets the value of an element attribute.
-		 * @param {String} name The name of the attribute.
-		 * @param {String} value The value to be set to the attribute.
-		 * @function
-		 * @returns {CKEDITOR.dom.element} This element instance.
-		 * @example
-		 * var element = CKEDITOR.dom.element.getById( 'myElement' );
-		 * <b>element.setAttribute( 'class', 'myClass' )</b>;
-		 * <b>element.setAttribute( 'title', 'This is an example' )</b>;
-		 */
-		setAttribute : (function()
-		{
-			var standard = function( name, value )
-			{
-				this.$.setAttribute( name, value );
-				return this;
-			};
-
-			if ( CKEDITOR.env.ie && ( CKEDITOR.env.ie7Compat || CKEDITOR.env.ie6Compat ) )
-			{
-				return function( name, value )
-				{
-					if ( name == 'class' )
-						this.$.className = value;
-					else if ( name == 'style' )
-						this.$.style.cssText = value;
-					else if ( name == 'tabindex' )	// Case sensitive.
-						this.$.tabIndex = value;
-					else if ( name == 'checked' )
-						this.$.checked = value;
-					else if ( name == 'contenteditable' )
-						standard.call( this, 'contentEditable', value );
-					else
-						standard.apply( this, arguments );
-					return this;
-				};
-			}
-			else if ( CKEDITOR.env.ie8Compat && CKEDITOR.env.secure )
-			{
-				return function( name, value )
-				{
-					// IE8 throws error when setting src attribute to non-ssl value. (#7847)
-					if ( name == 'src' && value.match( /^http:\/\// ) )
-						try { standard.apply( this, arguments ); } catch( e ){}
-					else
-						standard.apply( this, arguments );
-					return this;
-				};
-			}
-			else
-				return standard;
-		})(),
-
-		/**
-		 * Sets the value of several element attributes.
-		 * @param {Object} attributesPairs An object containing the names and
-		 *		values of the attributes.
-		 * @returns {CKEDITOR.dom.element} This element instance.
-		 * @example
-		 * var element = CKEDITOR.dom.element.getById( 'myElement' );
-		 * <b>element.setAttributes({
-		 *     'class' : 'myClass',
-		 *     'title' : 'This is an example' })</b>;
-		 */
-		setAttributes : function( attributesPairs )
-		{
-			for ( var name in attributesPairs )
-				this.setAttribute( name, attributesPairs[ name ] );
-			return this;
-		},
-
-		/**
-		 * Sets the element value. This function is usually used with form
-		 * field element.
-		 * @param {String} value The element value.
-		 * @returns {CKEDITOR.dom.element} This element instance.
-		 */
-		setValue : function( value )
-		{
-			this.$.value = value;
-			return this;
-		},
-
-		/**
-		 * Removes an attribute from the element.
-		 * @param {String} name The attribute name.
-		 * @function
-		 * @example
-		 * var element = CKEDITOR.dom.element.createFromHtml( '<div class="classA"></div>' );
-		 * element.removeAttribute( 'class' );
-		 */
-		removeAttribute : (function()
-		{
-			var standard = function( name )
-			{
-				this.$.removeAttribute( name );
-			};
-
-			if ( CKEDITOR.env.ie && ( CKEDITOR.env.ie7Compat || CKEDITOR.env.ie6Compat ) )
-			{
-				return function( name )
-				{
-					if ( name == 'class' )
-						name = 'className';
-					else if ( name == 'tabindex' )
-						name = 'tabIndex';
-					else if ( name == 'contenteditable' )
-						name = 'contentEditable';
-					standard.call( this, name );
-				};
-			}
-			else
-				return standard;
-		})(),
-
-		removeAttributes : function ( attributes )
-		{
-			if ( CKEDITOR.tools.isArray( attributes ) )
-			{
-				for ( var i = 0 ; i < attributes.length ; i++ )
-					this.removeAttribute( attributes[ i ] );
-			}
-			else
-			{
-				for ( var attr in attributes )
-					attributes.hasOwnProperty( attr ) && this.removeAttribute( attr );
-			}
-		},
-
-		/**
-		 * Removes a style from the element.
-		 * @param {String} name The style name.
-		 * @function
-		 * @example
-		 * var element = CKEDITOR.dom.element.createFromHtml( '<div style="display:none"></div>' );
-		 * element.removeStyle( 'display' );
-		 */
-		removeStyle : function( name )
-		{
-			// Removes the specified property from the current style object.
-			var $ = this.$.style;
-
-			// "removeProperty" need to be specific on the following styles.
-			if ( !$.removeProperty && ( name == 'border' || name == 'margin' || name == 'padding' ) )
-			{
-				var names = expandedRules( name );
-				for ( var i = 0 ; i < names.length ; i++ )
-					this.removeStyle( names[ i ] );
-				return;
-			}
-
-			$.removeProperty ? $.removeProperty( name ) : $.removeAttribute( CKEDITOR.tools.cssStyleToDomStyle( name ) );
-
-			if ( !this.$.style.cssText )
-				this.removeAttribute( 'style' );
-		},
-
-		/**
-		 * Sets the value of an element style.
-		 * @param {String} name The name of the style. The CSS naming notation
-		 *		must be used (e.g. "background-color").
-		 * @param {String} value The value to be set to the style.
-		 * @returns {CKEDITOR.dom.element} This element instance.
-		 * @example
-		 * var element = CKEDITOR.dom.element.getById( 'myElement' );
-		 * <b>element.setStyle( 'background-color', '#ff0000' )</b>;
-		 * <b>element.setStyle( 'margin-top', '10px' )</b>;
-		 * <b>element.setStyle( 'float', 'right' )</b>;
-		 */
-		setStyle : function( name, value )
-		{
-			this.$.style[ CKEDITOR.tools.cssStyleToDomStyle( name ) ] = value;
-			return this;
-		},
-
-		/**
-		 * Sets the value of several element styles.
-		 * @param {Object} stylesPairs An object containing the names and
-		 *		values of the styles.
-		 * @returns {CKEDITOR.dom.element} This element instance.
-		 * @example
-		 * var element = CKEDITOR.dom.element.getById( 'myElement' );
-		 * <b>element.setStyles({
-		 *     'position' : 'absolute',
-		 *     'float' : 'right' })</b>;
-		 */
-		setStyles : function( stylesPairs )
-		{
-			for ( var name in stylesPairs )
-				this.setStyle( name, stylesPairs[ name ] );
-			return this;
-		},
-
-		/**
-		 * Sets the opacity of an element.
-		 * @param {Number} opacity A number within the range [0.0, 1.0].
-		 * @example
-		 * var element = CKEDITOR.dom.element.getById( 'myElement' );
-		 * <b>element.setOpacity( 0.75 )</b>;
-		 */
-		setOpacity : function( opacity )
-		{
-			if ( CKEDITOR.env.ie && CKEDITOR.env.version < 9 )
-			{
-				opacity = Math.round( opacity * 100 );
-				this.setStyle( 'filter', opacity >= 100 ? '' : 'progid:DXImageTransform.Microsoft.Alpha(opacity=' + opacity + ')' );
-			}
-			else
-				this.setStyle( 'opacity', opacity );
-		},
-
-		/**
-		 * Makes the element and its children unselectable.
-		 * @function
-		 * @example
-		 * var element = CKEDITOR.dom.element.getById( 'myElement' );
-		 * element.unselectable();
-		 */
-		unselectable :
-			CKEDITOR.env.gecko ?
-				function()
-				{
-					this.$.style.MozUserSelect = 'none';
-					this.on( 'dragstart', function( evt ) { evt.data.preventDefault(); } );
-				}
-			: CKEDITOR.env.webkit ?
-				function()
-				{
-					this.$.style.KhtmlUserSelect = 'none';
-					this.on( 'dragstart', function( evt ) { evt.data.preventDefault(); } );
-				}
-			:
-				function()
-				{
-					if ( CKEDITOR.env.ie || CKEDITOR.env.opera )
-					{
-						var element = this.$,
-							elements = element.getElementsByTagName("*"),
-							e,
-							i = 0;
-
-						element.unselectable = 'on';
-
-						while ( ( e = elements[ i++ ] ) )
-						{
-							switch ( e.tagName.toLowerCase() )
-							{
-								case 'iframe' :
-								case 'textarea' :
-								case 'input' :
-								case 'select' :
-									/* Ignore the above tags */
-									break;
-								default :
-									e.unselectable = 'on';
-							}
-						}
-					}
-				},
-
-		getPositionedAncestor : function()
-		{
-			var current = this;
-			while ( current.getName() != 'html' )
-			{
-				if ( current.getComputedStyle( 'position' ) != 'static' )
-					return current;
-
-				current = current.getParent();
-			}
-			return null;
-		},
-
-		getDocumentPosition : function( refDocument )
-		{
-			var x = 0, y = 0,
-				doc = this.getDocument(),
-				body = doc.getBody(),
-				quirks = doc.$.compatMode == 'BackCompat';
-
-			if ( document.documentElement[ "getBoundingClientRect" ] )
-			{
-				var box  = this.$.getBoundingClientRect(),
-					$doc = doc.$,
-					$docElem = $doc.documentElement;
-
-				var clientTop = $docElem.clientTop || body.$.clientTop || 0,
-					clientLeft = $docElem.clientLeft || body.$.clientLeft || 0,
-					needAdjustScrollAndBorders = true;
-
-				/*
-				 * #3804: getBoundingClientRect() works differently on IE and non-IE
-				 * browsers, regarding scroll positions.
-				 *
-				 * On IE, the top position of the <html> element is always 0, no matter
-				 * how much you scrolled down.
-				 *
-				 * On other browsers, the top position of the <html> element is negative
-				 * scrollTop.
-				 */
-				if ( CKEDITOR.env.ie )
-				{
-					var inDocElem = doc.getDocumentElement().contains( this ),
-						inBody = doc.getBody().contains( this );
-
-					needAdjustScrollAndBorders = ( quirks && inBody ) || ( !quirks && inDocElem );
-				}
-
-				if ( needAdjustScrollAndBorders )
-				{
-					x = box.left + ( !quirks && $docElem.scrollLeft || body.$.scrollLeft );
-					x -= clientLeft;
-					y = box.top  + ( !quirks && $docElem.scrollTop || body.$.scrollTop );
-					y -= clientTop;
-				}
-			}
-			else
- 			{
-				var current = this, previous = null, offsetParent;
-				while ( current && !( current.getName() == 'body' || current.getName() == 'html' ) )
-				{
-					x += current.$.offsetLeft - current.$.scrollLeft;
-					y += current.$.offsetTop - current.$.scrollTop;
-
-					// Opera includes clientTop|Left into offsetTop|Left.
-					if ( !current.equals( this ) )
-					{
-						x += ( current.$.clientLeft || 0 );
-						y += ( current.$.clientTop || 0 );
-					}
-
-					var scrollElement = previous;
-					while ( scrollElement && !scrollElement.equals( current ) )
-					{
-						x -= scrollElement.$.scrollLeft;
-						y -= scrollElement.$.scrollTop;
-						scrollElement = scrollElement.getParent();
-					}
-
-					previous = current;
-					current = ( offsetParent = current.$.offsetParent ) ?
-					          new CKEDITOR.dom.element( offsetParent ) : null;
-				}
-			}
-
-			if ( refDocument )
-			{
-				var currentWindow = this.getWindow(),
-					refWindow = refDocument.getWindow();
-
-				if ( !currentWindow.equals( refWindow ) && currentWindow.$.frameElement )
-				{
-					var iframePosition = ( new CKEDITOR.dom.element( currentWindow.$.frameElement ) ).getDocumentPosition( refDocument );
-
-					x += iframePosition.x;
-					y += iframePosition.y;
-				}
-			}
-
-			if ( !document.documentElement[ "getBoundingClientRect" ] )
-			{
-				// In Firefox, we'll endup one pixel before the element positions,
-				// so we must add it here.
-				if ( CKEDITOR.env.gecko && !quirks )
-				{
-					x += this.$.clientLeft ? 1 : 0;
-					y += this.$.clientTop ? 1 : 0;
-				}
-			}
-
-			return { x : x, y : y };
-		},
-
-		/**
-		 * Make any page element visible inside the browser viewport.
-		 * @param {Boolean} [alignToTop]
-		 */
-		scrollIntoView : function( alignToTop )
-		{
-			var parent = this.getParent();
-			if ( !parent ) return;
-
-			// Scroll the element into parent container from the inner out.
-			do
-			{
-				// Check ancestors that overflows.
-				var overflowed =
-					parent.$.clientWidth && parent.$.clientWidth < parent.$.scrollWidth
-					|| parent.$.clientHeight && parent.$.clientHeight < parent.$.scrollHeight;
-
-				if ( overflowed )
-					this.scrollIntoParent( parent, alignToTop, 1 );
-
-				// Walk across the frame.
-				if ( parent.is( 'html' ) )
-				{
-					var win = parent.getWindow();
-
-					// Avoid security error.
-					try
-					{
-						var iframe = win.$.frameElement;
-						iframe && ( parent = new CKEDITOR.dom.element( iframe ) );
-					}
-					catch(er){}
-				}
-			}
-			while ( ( parent = parent.getParent() ) );
-		},
-
-		/**
-		 * Make any page element visible inside one of the ancestors by scrolling the parent.
-		 * @param {CKEDITOR.dom.element|CKEDITOR.dom.window} parent The container to scroll into.
-		 * @param {Boolean} [alignToTop] Align the element's top side with the container's
-		 * when <code>true</code> is specified; align the bottom with viewport bottom when
-		 * <code>false</code> is specified. Otherwise scroll on either side with the minimum
-		 * amount to show the element.
-		 * @param {Boolean} [hscroll] Whether horizontal overflow should be considered.
-		 */
-		scrollIntoParent : function( parent, alignToTop, hscroll )
-		{
-			!parent && ( parent = this.getWindow() );
-
-			var doc = parent.getDocument();
-			var isQuirks = doc.$.compatMode == 'BackCompat';
-
-			// On window <html> is scrolled while quirks scrolls <body>.
-			if ( parent instanceof CKEDITOR.dom.window )
-				parent = isQuirks ? doc.getBody() : doc.getDocumentElement();
-
-			// Scroll the parent by the specified amount.
-			function scrollBy( x, y )
-			{
-				// Webkit doesn't support "scrollTop/scrollLeft"
-				// on documentElement/body element.
-				if ( /body|html/.test( parent.getName() ) )
-					parent.getWindow().$.scrollBy( x, y );
-				else
-				{
-					parent.$[ 'scrollLeft' ] += x;
-					parent.$[ 'scrollTop' ] += y;
-				}
-			}
-
-			// Figure out the element position relative to the specified window.
-			function screenPos( element, refWin )
-			{
-				var pos = { x: 0, y: 0 };
-
-				if ( !( element.is( isQuirks ? 'body' : 'html' ) ) )
-				{
-					var box = element.$.getBoundingClientRect();
-					pos.x = box.left, pos.y = box.top;
-				}
-
-				var win = element.getWindow();
-				if ( !win.equals( refWin ) )
-				{
-					var outerPos = screenPos( CKEDITOR.dom.element.get( win.$.frameElement ), refWin );
-					pos.x += outerPos.x, pos.y += outerPos.y;
-				}
-
-				return pos;
-			}
-
-			// calculated margin size.
-			function margin( element, side )
-			{
-				return parseInt( element.getComputedStyle( 'margin-' + side ) || 0, 10 ) || 0;
-			}
-
-			var win = parent.getWindow();
-
-			var thisPos = screenPos( this, win ),
-				parentPos = screenPos( parent, win ),
-				eh = this.$.offsetHeight,
-				ew = this.$.offsetWidth,
-				ch = parent.$.clientHeight,
-				cw = parent.$.clientWidth,
-				lt,
-				br;
-
-			// Left-top margins.
-			lt =
-			{
-				x : thisPos.x - margin( this, 'left' ) - parentPos.x || 0,
-				y : thisPos.y - margin( this, 'top' ) - parentPos.y|| 0
-			};
-
-			// Bottom-right margins.
-			br =
-			{
-				x : thisPos.x + ew + margin( this, 'right' ) - ( ( parentPos.x ) + cw ) || 0,
-				y : thisPos.y + eh + margin( this, 'bottom' ) - ( ( parentPos.y ) + ch ) || 0
-			};
-
-			// 1. Do the specified alignment as much as possible;
-			// 2. Otherwise be smart to scroll only the minimum amount;
-			// 3. Never cut at the top;
-			// 4. DO NOT scroll when already visible.
-			if ( lt.y < 0 || br.y > 0 )
-			{
-				scrollBy( 0,
-						  alignToTop === true ? lt.y :
-						  alignToTop === false ? br.y :
-						  lt.y < 0 ? lt.y : br.y );
-			}
-
-			if ( hscroll && ( lt.x < 0 || br.x > 0 ) )
-				scrollBy( lt.x < 0 ? lt.x : br.x, 0 );
-		},
-
-		setState : function( state )
-		{
-			switch ( state )
-			{
-				case CKEDITOR.TRISTATE_ON :
-					this.addClass( 'cke_on' );
-					this.removeClass( 'cke_off' );
-					this.removeClass( 'cke_disabled' );
-					break;
-				case CKEDITOR.TRISTATE_DISABLED :
-					this.addClass( 'cke_disabled' );
-					this.removeClass( 'cke_off' );
-					this.removeClass( 'cke_on' );
-					break;
-				default :
-					this.addClass( 'cke_off' );
-					this.removeClass( 'cke_on' );
-					this.removeClass( 'cke_disabled' );
-					break;
-			}
-		},
-
-		/**
-		 * Returns the inner document of this IFRAME element.
-		 * @returns {CKEDITOR.dom.document} The inner document.
-		 */
-		getFrameDocument : function()
-		{
-			var $ = this.$;
-
-			try
-			{
-				// In IE, with custom document.domain, it may happen that
-				// the iframe is not yet available, resulting in "Access
-				// Denied" for the following property access.
-				$.contentWindow.document;
-			}
-			catch ( e )
-			{
-				// Trick to solve this issue, forcing the iframe to get ready
-				// by simply setting its "src" property.
-				$.src = $.src;
-
-				// In IE6 though, the above is not enough, so we must pause the
-				// execution for a while, giving it time to think.
-				if ( CKEDITOR.env.ie && CKEDITOR.env.version < 7 )
-				{
-					window.showModalDialog(
-						'javascript:document.write("' +
-							'<script>' +
-								'window.setTimeout(' +
-									'function(){window.close();}' +
-									',50);' +
-							'</script>")' );
-				}
-			}
-
-			return $ && new CKEDITOR.dom.document( $.contentWindow.document );
-		},
-
-		/**
-		 * Copy all the attributes from one node to the other, kinda like a clone
-		 * skipAttributes is an object with the attributes that must NOT be copied.
-		 * @param {CKEDITOR.dom.element} dest The destination element.
-		 * @param {Object} skipAttributes A dictionary of attributes to skip.
-		 * @example
-		 */
-		copyAttributes : function( dest, skipAttributes )
-		{
-			var attributes = this.$.attributes;
-			skipAttributes = skipAttributes || {};
-
-			for ( var n = 0 ; n < attributes.length ; n++ )
-			{
-				var attribute = attributes[n];
-
-				// Lowercase attribute name hard rule is broken for
-				// some attribute on IE, e.g. CHECKED.
-				var attrName = attribute.nodeName.toLowerCase(),
-					attrValue;
-
-				// We can set the type only once, so do it with the proper value, not copying it.
-				if ( attrName in skipAttributes )
-					continue;
-
-				if ( attrName == 'checked' && ( attrValue = this.getAttribute( attrName ) ) )
-					dest.setAttribute( attrName, attrValue );
-				// IE BUG: value attribute is never specified even if it exists.
-				else if ( attribute.specified ||
-				  ( CKEDITOR.env.ie && attribute.nodeValue && attrName == 'value' ) )
-				{
-					attrValue = this.getAttribute( attrName );
-					if ( attrValue === null )
-						attrValue = attribute.nodeValue;
-
-					dest.setAttribute( attrName, attrValue );
-				}
-			}
-
-			// The style:
-			if ( this.$.style.cssText !== '' )
-				dest.$.style.cssText = this.$.style.cssText;
-		},
-
-		/**
-		 * Changes the tag name of the current element.
-		 * @param {String} newTag The new tag for the element.
-		 */
-		renameNode : function( newTag )
-		{
-			// If it's already correct exit here.
-			if ( this.getName() == newTag )
-				return;
-
-			var doc = this.getDocument();
-
-			// Create the new node.
-			var newNode = new CKEDITOR.dom.element( newTag, doc );
-
-			// Copy all attributes.
-			this.copyAttributes( newNode );
-
-			// Move children to the new node.
-			this.moveChildren( newNode );
-
-			// Replace the node.
-			this.getParent() && this.$.parentNode.replaceChild( newNode.$, this.$ );
-			newNode.$[ 'data-cke-expando' ] = this.$[ 'data-cke-expando' ];
-			this.$ = newNode.$;
-		},
-
-		/**
-		 * Gets a DOM tree descendant under the current node.
-		 * @param {Array|Number} indices The child index or array of child indices under the node.
-		 * @returns {CKEDITOR.dom.node} The specified DOM child under the current node. Null if child does not exist.
-		 * @example
-		 * var strong = p.getChild(0);
-		 */
-		getChild : function( indices )
-		{
-			var rawNode = this.$;
-
-			if ( !indices.slice )
-				rawNode = rawNode.childNodes[ indices ];
-			else
-			{
-				while ( indices.length > 0 && rawNode )
-					rawNode = rawNode.childNodes[ indices.shift() ];
-			}
-
-			return rawNode ? new CKEDITOR.dom.node( rawNode ) : null;
-		},
-
-		getChildCount : function()
-		{
-			return this.$.childNodes.length;
- 		},
-
-		disableContextMenu : function()
-		{
-			this.on( 'contextmenu', function( event )
-				{
-					// Cancel the browser context menu.
-					if ( !event.data.getTarget().hasClass( 'cke_enable_context_menu' ) )
-						event.data.preventDefault();
-				} );
-		},
-
-		/**
-		 * Gets element's direction. Supports both CSS 'direction' prop and 'dir' attr.
-		 */
-		getDirection : function( useComputed )
-		{
-			return useComputed ?
-				this.getComputedStyle( 'direction' )
-					// Webkit: offline element returns empty direction (#8053).
-					|| this.getDirection()
-					|| this.getDocument().$.dir
-					|| this.getDocument().getBody().getDirection( 1 )
-				: this.getStyle( 'direction' ) || this.getAttribute( 'dir' );
-		},
-
-		/**
-		 * Gets, sets and removes custom data to be stored as HTML5 data-* attributes.
-		 * @param {String} name The name of the attribute, excluding the 'data-' part.
-		 * @param {String} [value] The value to set. If set to false, the attribute will be removed.
-		 * @example
-		 * element.data( 'extra-info', 'test' );   // appended the attribute data-extra-info="test" to the element
-		 * alert( element.data( 'extra-info' ) );  // "test"
-		 * element.data( 'extra-info', false );    // remove the data-extra-info attribute from the element
-		 */
-		data : function ( name, value )
-		{
-			name = 'data-' + name;
-			if ( value === undefined )
-				return this.getAttribute( name );
-			else if ( value === false )
-				this.removeAttribute( name );
-			else
-				this.setAttribute( name, value );
-
-			return null;
-		}
-	});
-
-	var sides = {
-		width : [ "border-left-width", "border-right-width","padding-left", "padding-right" ],
-		height : [ "border-top-width", "border-bottom-width", "padding-top",  "padding-bottom" ]
-	};
-
-	// Generate list of specific style rules, applicable to margin/padding/border.
-	function expandedRules( style )
-	{
-		var sides = [ 'top', 'left', 'right', 'bottom' ], components;
-
-		if ( style == 'border' )
-				components = [ 'color', 'style', 'width' ];
-
-		var styles = [];
-		for ( var i = 0 ; i < sides.length ; i++ )
-		{
-
-			if ( components )
-			{
-				for ( var j = 0 ; j < components.length ; j++ )
-					styles.push( [ style, sides[ i ], components[j] ].join( '-' ) );
-			}
-			else
-				styles.push( [ style, sides[ i ] ].join( '-' ) );
-		}
-
-		return styles;
-	}
-
-	function marginAndPaddingSize( type )
-	{
-		var adjustment = 0;
-		for ( var i = 0, len = sides[ type ].length; i < len; i++ )
-			adjustment += parseInt( this.getComputedStyle( sides [ type ][ i ] ) || 0, 10 ) || 0;
-		return adjustment;
-	}
-
-	/**
-	 * Sets the element size considering the box model.
-	 * @name CKEDITOR.dom.element.prototype.setSize
-	 * @function
-	 * @param {String} type The dimension to set. It accepts "width" and "height".
-	 * @param {Number} size The length unit in px.
-	 * @param {Boolean} isBorderBox Apply the size based on the border box model.
-	 */
-	CKEDITOR.dom.element.prototype.setSize = function( type, size, isBorderBox )
-		{
-			if ( typeof size == 'number' )
-			{
-				if ( isBorderBox && !( CKEDITOR.env.ie && CKEDITOR.env.quirks ) )
-					size -= marginAndPaddingSize.call( this, type );
-
-				this.setStyle( type, size + 'px' );
-			}
-		};
-
-	/**
-	 * Gets the element size, possibly considering the box model.
-	 * @name CKEDITOR.dom.element.prototype.getSize
-	 * @function
-	 * @param {String} type The dimension to get. It accepts "width" and "height".
-	 * @param {Boolean} isBorderBox Get the size based on the border box model.
-	 */
-	CKEDITOR.dom.element.prototype.getSize = function( type, isBorderBox )
-		{
-			var size = Math.max( this.$[ 'offset' + CKEDITOR.tools.capitalize( type )  ],
-				this.$[ 'client' + CKEDITOR.tools.capitalize( type )  ] ) || 0;
-
-			if ( isBorderBox )
-				size -= marginAndPaddingSize.call( this, type );
-
-			return size;
-		};
-})();