X-Git-Url: https://jasonwoof.com/gitweb/?a=blobdiff_plain;f=_source%2Fplugins%2Findent%2Fplugin.js;h=c49ce882832188b5b1c876898cd5a5d9d2762a6b;hb=614511639979907ceb0da3614122a4d8eb963ad4;hp=c6888219cbdaea7f1257636689c3933f7e1a84f3;hpb=ea7e3453c7b0f023b050aca6d9f83ab372860d91;p=ckeditor.git

diff --git a/_source/plugins/indent/plugin.js b/_source/plugins/indent/plugin.js
index c688821..c49ce88 100644
--- a/_source/plugins/indent/plugin.js
+++ b/_source/plugins/indent/plugin.js
@@ -1,5 +1,5 @@
 /*
-Copyright (c) 2003-2009, CKSource - Frederico Knabben. All rights reserved.
+Copyright (c) 2003-2010, CKSource - Frederico Knabben. All rights reserved.
 For licensing, see LICENSE.html or http://ckeditor.com/license
 */
 
@@ -11,6 +11,9 @@ For licensing, see LICENSE.html or http://ckeditor.com/license
 {
 	var listNodeNames = { ol : 1, ul : 1 };
 
+	var isNotWhitespaces = CKEDITOR.dom.walker.whitespaces( true ),
+		isNotBookmark = CKEDITOR.dom.walker.bookmark( false, true );
+
 	function setState( editor, state )
 	{
 		editor.getCommand( this.name ).setState( state );
@@ -18,38 +21,13 @@ For licensing, see LICENSE.html or http://ckeditor.com/license
 
 	function onSelectionChange( evt )
 	{
-		var elements = evt.data.path.elements,
-			listNode, listItem,
-			editor = evt.editor;
+		var editor = evt.editor;
 
-		for ( var i = 0 ; i < elements.length ; i++ )
-		{
-			if ( elements[i].getName() == 'li' )
-			{
-				listItem = elements[i];
-				continue;
-			}
-			if ( listNodeNames[ elements[i].getName() ] )
-			{
-				listNode = elements[i];
-				break;
-			}
-		}
+		var elementPath = evt.data.path,
+				list = elementPath && elementPath.contains( listNodeNames );
 
-		if ( listNode )
-		{
-			if ( this.name == 'outdent' )
+		if ( list )
 				return setState.call( this, editor, CKEDITOR.TRISTATE_OFF );
-			else
-			{
-				while ( listItem && ( listItem = listItem.getPrevious( CKEDITOR.dom.walker.whitespaces( true ) ) ) )
-				{
-					if ( listItem.getName && listItem.getName() == 'li' )
-						return setState.call( this, editor, CKEDITOR.TRISTATE_OFF );
-				}
-				return setState.call( this, editor, CKEDITOR.TRISTATE_DISABLED );
-			}
-		}
 
 		if ( !this.useIndentClasses && this.name == 'indent' )
 			return setState.call( this, editor, CKEDITOR.TRISTATE_OFF );
@@ -75,7 +53,7 @@ For licensing, see LICENSE.html or http://ckeditor.com/license
 		}
 		else
 		{
-			var indent = parseInt( firstBlock.getStyle( this.indentCssProperty ), 10 );
+			var indent = parseInt( firstBlock.getStyle( getIndentCssProperty( firstBlock ) ), 10 );
 			if ( isNaN( indent ) )
 				indent = 0;
 			if ( indent <= 0 )
@@ -84,201 +62,288 @@ For licensing, see LICENSE.html or http://ckeditor.com/license
 		}
 	}
 
-	function indentList( editor, range, listNode )
+	function indentCommand( editor, name )
 	{
-		// Our starting and ending points of the range might be inside some blocks under a list item...
-		// So before playing with the iterator, we need to expand the block to include the list items.
-		var startContainer = range.startContainer,
-			endContainer = range.endContainer;
-		while ( startContainer && !startContainer.getParent().equals( listNode ) )
-			startContainer = startContainer.getParent();
-		while ( endContainer && !endContainer.getParent().equals( listNode ) )
-			endContainer = endContainer.getParent();
-
-		if ( !startContainer || !endContainer )
-			return;
-
-		// Now we can iterate over the individual items on the same tree depth.
-		var block = startContainer,
-			itemsToMove = [],
-			stopFlag = false;
-		while ( !stopFlag )
-		{
-			if ( block.equals( endContainer ) )
-				stopFlag = true;
-			itemsToMove.push( block );
-			block = block.getNext();
-		}
-		if ( itemsToMove.length < 1 )
-			return;
-
-		// Do indent or outdent operations on the array model of the list, not the
-		// list's DOM tree itself. The array model demands that it knows as much as
-		// possible about the surrounding lists, we need to feed it the further
-		// ancestor node that is still a list.
-		var listParents = listNode.getParents( true );
-		for ( var i = 0 ; i < listParents.length ; i++ )
+		this.name = name;
+		this.useIndentClasses = editor.config.indentClasses && editor.config.indentClasses.length > 0;
+		if ( this.useIndentClasses )
 		{
-			if ( listParents[i].getName && listNodeNames[ listParents[i].getName() ] )
-			{
-				listNode = listParents[i];
-				break;
-			}
+			this.classNameRegex = new RegExp( '(?:^|\\s+)(' + editor.config.indentClasses.join( '|' ) + ')(?=$|\\s)' );
+			this.indentClassMap = {};
+			for ( var i = 0 ; i < editor.config.indentClasses.length ; i++ )
+				this.indentClassMap[ editor.config.indentClasses[i] ] = i + 1;
 		}
-		var indentOffset = this.name == 'indent' ? 1 : -1,
-			startItem = itemsToMove[0],
-			lastItem = itemsToMove[ itemsToMove.length - 1 ],
-			database = {};
-
-		// Convert the list DOM tree into a one dimensional array.
-		var listArray = CKEDITOR.plugins.list.listToArray( listNode, database );
-
-		// Apply indenting or outdenting on the array.
-		var baseIndent = listArray[ lastItem.getCustomData( 'listarray_index' ) ].indent;
-		for ( i = startItem.getCustomData( 'listarray_index' ) ; i <= lastItem.getCustomData( 'listarray_index' ) ; i++ )
-			listArray[i].indent += indentOffset;
-		for ( i = lastItem.getCustomData( 'listarray_index' ) + 1 ;
-				i < listArray.length && listArray[i].indent > baseIndent ; i++ )
-			listArray[i].indent += indentOffset;
-
-		// Convert the array back to a DOM forest (yes we might have a few subtrees now).
-		// And replace the old list with the new forest.
-		var newList = CKEDITOR.plugins.list.arrayToList( listArray, database, null, editor.config.enterMode, 0 );
-
-		// Avoid nested <li> after outdent even they're visually same,
-		// recording them for later refactoring.(#3982)
-		if ( this.name == 'outdent' )
+
+		this.startDisabled = name == 'outdent';
+	}
+
+	// Returns the CSS property to be used for identing a given element.
+	function getIndentCssProperty( element, dir )
+	{
+		return ( dir || element.getComputedStyle( 'direction' ) ) == 'ltr' ? 'margin-left' : 'margin-right';
+	}
+
+	function isListItem( node )
+	{
+		return node.type = CKEDITOR.NODE_ELEMENT && node.is( 'li' );
+	}
+
+	indentCommand.prototype = {
+		exec : function( editor )
 		{
-			var parentLiElement;
-			if ( ( parentLiElement = listNode.getParent() ) && parentLiElement.is( 'li' ) )
+			var self = this, database = {};
+
+			function indentList( listNode )
 			{
-				var children = newList.listNode.getChildren(),
-					pendingLis = [],
-					count = children.count(),
-					child;
+				// Our starting and ending points of the range might be inside some blocks under a list item...
+				// So before playing with the iterator, we need to expand the block to include the list items.
+				var startContainer = range.startContainer,
+					endContainer = range.endContainer;
+				while ( startContainer && !startContainer.getParent().equals( listNode ) )
+					startContainer = startContainer.getParent();
+				while ( endContainer && !endContainer.getParent().equals( listNode ) )
+					endContainer = endContainer.getParent();
+
+				if ( !startContainer || !endContainer )
+					return;
+
+				// Now we can iterate over the individual items on the same tree depth.
+				var block = startContainer,
+					itemsToMove = [],
+					stopFlag = false;
+				while ( !stopFlag )
+				{
+					if ( block.equals( endContainer ) )
+						stopFlag = true;
+					itemsToMove.push( block );
+					block = block.getNext();
+				}
+				if ( itemsToMove.length < 1 )
+					return;
+
+				// Do indent or outdent operations on the array model of the list, not the
+				// list's DOM tree itself. The array model demands that it knows as much as
+				// possible about the surrounding lists, we need to feed it the further
+				// ancestor node that is still a list.
+				var listParents = listNode.getParents( true );
+				for ( var i = 0 ; i < listParents.length ; i++ )
+				{
+					if ( listParents[i].getName && listNodeNames[ listParents[i].getName() ] )
+					{
+						listNode = listParents[i];
+						break;
+					}
+				}
+				var indentOffset = self.name == 'indent' ? 1 : -1,
+					startItem = itemsToMove[0],
+					lastItem = itemsToMove[ itemsToMove.length - 1 ];
+
+				// Convert the list DOM tree into a one dimensional array.
+				var listArray = CKEDITOR.plugins.list.listToArray( listNode, database );
 
-				for ( i = count - 1 ; i >= 0 ; i-- )
+				// Apply indenting or outdenting on the array.
+				var baseIndent = listArray[ lastItem.getCustomData( 'listarray_index' ) ].indent;
+				for ( i = startItem.getCustomData( 'listarray_index' ); i <= lastItem.getCustomData( 'listarray_index' ); i++ )
 				{
-					if( ( child = children.getItem( i ) ) && child.is && child.is( 'li' )  )
-						pendingLis.push( child );
+					listArray[ i ].indent += indentOffset;
+					// Make sure the newly created sublist get a brand-new element of the same type. (#5372)
+					var listRoot = listArray[ i ].parent;
+					listArray[ i ].parent = new CKEDITOR.dom.element( listRoot.getName(), listRoot.getDocument() );
 				}
-			}
-		}
 
-		if ( newList )
-			newList.listNode.replace( listNode );
+				for ( i = lastItem.getCustomData( 'listarray_index' ) + 1 ;
+						i < listArray.length && listArray[i].indent > baseIndent ; i++ )
+					listArray[i].indent += indentOffset;
 
-		// Move the nested <li> to be appeared after the parent.
-		if ( pendingLis && pendingLis.length )
-		{
-			for (  i = 0; i < pendingLis.length ; i++ )
-			{
-				var li = pendingLis[ i ],
-					followingList = li;
+				// Convert the array back to a DOM forest (yes we might have a few subtrees now).
+				// And replace the old list with the new forest.
+				var newList = CKEDITOR.plugins.list.arrayToList( listArray, database, null, editor.config.enterMode, listNode.getDirection() );
 
-				// Nest preceding <ul>/<ol> inside current <li> if any.
-				while( ( followingList = followingList.getNext() ) &&
-					   followingList.is &&
-					   followingList.getName() in listNodeNames )
+				// Avoid nested <li> after outdent even they're visually same,
+				// recording them for later refactoring.(#3982)
+				if ( self.name == 'outdent' )
 				{
-					li.append( followingList );
+					var parentLiElement;
+					if ( ( parentLiElement = listNode.getParent() ) && parentLiElement.is( 'li' ) )
+					{
+						var children = newList.listNode.getChildren(),
+							pendingLis = [],
+							count = children.count(),
+							child;
+
+						for ( i = count - 1 ; i >= 0 ; i-- )
+						{
+							if ( ( child = children.getItem( i ) ) && child.is && child.is( 'li' )  )
+								pendingLis.push( child );
+						}
+					}
 				}
 
-				li.insertAfter( parentLiElement );
-			}
-		}
+				if ( newList )
+					newList.listNode.replace( listNode );
 
-		// Clean up the markers.
-		CKEDITOR.dom.element.clearAllMarkers( database );
-	}
+				// Move the nested <li> to be appeared after the parent.
+				if ( pendingLis && pendingLis.length )
+				{
+					for (  i = 0; i < pendingLis.length ; i++ )
+					{
+						var li = pendingLis[ i ],
+							followingList = li;
+
+						// Nest preceding <ul>/<ol> inside current <li> if any.
+						while ( ( followingList = followingList.getNext() ) &&
+							   followingList.is &&
+							   followingList.getName() in listNodeNames )
+						{
+							// IE requires a filler NBSP for nested list inside empty list item,
+							// otherwise the list item will be inaccessiable. (#4476)
+							if ( CKEDITOR.env.ie && !li.getFirst( function( node ){ return isNotWhitespaces( node ) && isNotBookmark( node ); } ) )
+								li.append( range.document.createText( '\u00a0' ) );
+
+							li.append( followingList );
+						}
+
+						li.insertAfter( parentLiElement );
+					}
+				}
+			}
 
-	function indentBlock( editor, range )
-	{
-		var iterator = range.createIterator(),
-			enterMode = editor.config.enterMode;
-		iterator.enforceRealBlocks = true;
-		iterator.enlargeBr = enterMode != CKEDITOR.ENTER_BR;
-		var block;
-		while ( ( block = iterator.getNextParagraph() ) )
-		{
+			function indentBlock()
+			{
+				var iterator = range.createIterator(),
+					enterMode = editor.config.enterMode;
+				iterator.enforceRealBlocks = true;
+				iterator.enlargeBr = enterMode != CKEDITOR.ENTER_BR;
+				var block;
+				while ( ( block = iterator.getNextParagraph() ) )
+					indentElement( block );
+			}
 
-			if ( this.useIndentClasses )
+			function indentElement( element, dir )
 			{
-				// Transform current class name to indent step index.
-				var indentClass = block.$.className.match( this.classNameRegex ),
-					indentStep = 0;
-				if ( indentClass )
+				if ( element.getCustomData( 'indent_processed' ) )
+					return false;
+
+				if ( self.useIndentClasses )
 				{
-					indentClass = indentClass[1];
-					indentStep = this.indentClassMap[ indentClass ];
+					// Transform current class name to indent step index.
+					var indentClass = element.$.className.match( self.classNameRegex ),
+							indentStep = 0;
+					if ( indentClass )
+					{
+						indentClass = indentClass[1];
+						indentStep = self.indentClassMap[ indentClass ];
+					}
+
+					// Operate on indent step index, transform indent step index back to class
+					// name.
+					if ( self.name == 'outdent' )
+						indentStep--;
+					else
+						indentStep++;
+
+					if ( indentStep < 0 )
+						return false;
+
+					indentStep = Math.min( indentStep, editor.config.indentClasses.length );
+					indentStep = Math.max( indentStep, 0 );
+					element.$.className = CKEDITOR.tools.ltrim( element.$.className.replace( self.classNameRegex, '' ) );
+					if ( indentStep > 0 )
+						element.addClass( editor.config.indentClasses[ indentStep - 1 ] );
 				}
-
-				// Operate on indent step index, transform indent step index back to class
-				// name.
-				if ( this.name == 'outdent' )
-					indentStep--;
 				else
-					indentStep++;
-				indentStep = Math.min( indentStep, editor.config.indentClasses.length );
-				indentStep = Math.max( indentStep, 0 );
-				var className = CKEDITOR.tools.ltrim( block.$.className.replace( this.classNameRegex, '' ) );
-				if ( indentStep < 1 )
-					block.$.className = className;
-				else
-					block.addClass( editor.config.indentClasses[ indentStep - 1 ] );
+				{
+					var indentCssProperty = getIndentCssProperty( element, dir ),
+						currentOffset = parseInt( element.getStyle( indentCssProperty ), 10 );
+					if ( isNaN( currentOffset ) )
+						currentOffset = 0;
+					var indentOffset = editor.config.indentOffset || 40;
+					currentOffset += ( self.name == 'indent' ? 1 : -1 ) * indentOffset;
+
+					if ( currentOffset < 0 )
+						return false;
+
+					currentOffset = Math.max( currentOffset, 0 );
+					currentOffset = Math.ceil( currentOffset / indentOffset ) * indentOffset;
+					element.setStyle( indentCssProperty, currentOffset ? currentOffset + ( editor.config.indentUnit || 'px' ) : '' );
+					if ( element.getAttribute( 'style' ) === '' )
+						element.removeAttribute( 'style' );
+				}
+
+				CKEDITOR.dom.element.setMarker( database, element, 'indent_processed', 1 );
+				return true;
 			}
-			else
+
+			var selection = editor.getSelection(),
+				bookmarks = selection.createBookmarks( 1 ),
+				ranges = selection && selection.getRanges( 1 ),
+				range;
+
+
+			var iterator = ranges.createIterator();
+			while ( ( range = iterator.getNextRange() ) )
 			{
-				var currentOffset = parseInt( block.getStyle( this.indentCssProperty ), 10 );
-				if ( isNaN( currentOffset ) )
-					currentOffset = 0;
-				currentOffset += ( this.name == 'indent' ? 1 : -1 ) * editor.config.indentOffset;
-				currentOffset = Math.max( currentOffset, 0 );
-				currentOffset = Math.ceil( currentOffset / editor.config.indentOffset ) * editor.config.indentOffset;
-				block.setStyle( this.indentCssProperty, currentOffset ? currentOffset + editor.config.indentUnit : '' );
-				if ( block.getAttribute( 'style' ) === '' )
-					block.removeAttribute( 'style' );
-			}
-		}
-	}
+				var rangeRoot = range.getCommonAncestor(),
+					nearestListBlock = rangeRoot;
 
-	function indentCommand( editor, name )
-	{
-		this.name = name;
-		this.useIndentClasses = editor.config.indentClasses && editor.config.indentClasses.length > 0;
-		if ( this.useIndentClasses )
-		{
-			this.classNameRegex = new RegExp( '(?:^|\\s+)(' + editor.config.indentClasses.join( '|' ) + ')(?=$|\\s)' );
-			this.indentClassMap = {};
-			for ( var i = 0 ; i < editor.config.indentClasses.length ; i++ )
-				this.indentClassMap[ editor.config.indentClasses[i] ] = i + 1;
-		}
-		else
-			this.indentCssProperty = editor.config.contentsLangDirection == 'ltr' ? 'margin-left' : 'margin-right';
-	}
+				while ( nearestListBlock && !( nearestListBlock.type == CKEDITOR.NODE_ELEMENT &&
+					listNodeNames[ nearestListBlock.getName() ] ) )
+					nearestListBlock = nearestListBlock.getParent();
 
-	indentCommand.prototype = {
-		exec : function( editor )
-		{
-			var selection = editor.getSelection(),
-				range = selection && selection.getRanges()[0];
+				// Avoid having selection enclose the entire list. (#6138)
+				// [<ul><li>...</li></ul>] =><ul><li>[...]</li></ul>
+				if ( !nearestListBlock )
+				{
+					var selectedNode = range.getEnclosedNode();
+					if ( selectedNode
+						&& selectedNode.type == CKEDITOR.NODE_ELEMENT
+						&& selectedNode.getName() in listNodeNames)
+					{
+						range.setStartAt( selectedNode, CKEDITOR.POSITION_AFTER_START );
+						range.setEndAt( selectedNode, CKEDITOR.POSITION_BEFORE_END );
+						nearestListBlock = selectedNode;
+					}
+				}
 
-			if ( !selection || !range )
-				return;
+				// Avoid selection anchors under list root.
+				// <ul>[<li>...</li>]</ul> =>	<ul><li>[...]</li></ul>
+				if ( nearestListBlock && range.startContainer.type == CKEDITOR.NODE_ELEMENT
+					&& range.startContainer.getName() in listNodeNames )
+				{
+					var walker = new CKEDITOR.dom.walker( range );
+					walker.evaluator = isListItem;
+					range.startContainer = walker.next();
+				}
 
-			var bookmarks = selection.createBookmarks( true ),
-				nearestListBlock = range.getCommonAncestor();
+				if ( nearestListBlock && range.endContainer.type == CKEDITOR.NODE_ELEMENT
+					&& range.endContainer.getName() in listNodeNames )
+				{
+					walker = new CKEDITOR.dom.walker( range );
+					walker.evaluator = isListItem;
+					range.endContainer = walker.previous();
+				}
 
-			while ( nearestListBlock && !( nearestListBlock.type == CKEDITOR.NODE_ELEMENT &&
-				listNodeNames[ nearestListBlock.getName() ] ) )
-				nearestListBlock = nearestListBlock.getParent();
+				if ( nearestListBlock )
+				{
+					var firstListItem = nearestListBlock.getFirst( isListItem ),
+						hasMultipleItems = !!firstListItem.getNext( isListItem ),
+						rangeStart = range.startContainer,
+						indentWholeList = firstListItem.equals( rangeStart ) || firstListItem.contains( rangeStart );
+
+					// Indent the entire list if cursor is inside the first list item. (#3893)
+					// Only do that for indenting or when using indent classes or when there is something to outdent. (#6141)
+					if ( !( indentWholeList &&
+						( self.name == 'indent' || self.useIndentClasses || parseInt( nearestListBlock.getStyle( getIndentCssProperty( nearestListBlock ) ), 10 ) ) &&
+							indentElement( nearestListBlock, !hasMultipleItems && firstListItem.getDirection() ) ) )
+								indentList( nearestListBlock );
+				}
+				else
+					indentBlock();
+			}
 
-			if ( nearestListBlock )
-				indentList.call( this, editor, range, nearestListBlock );
-			else
-				indentBlock.call( this, editor, range );
+			// Clean up the markers.
+			CKEDITOR.dom.element.clearAllMarkers( database );
 
-			editor.focus();
 			editor.forceNextSelectionCheck();
 			selection.selectBookmarks( bookmarks );
 		}
@@ -309,15 +374,95 @@ For licensing, see LICENSE.html or http://ckeditor.com/license
 			// Register the state changing handlers.
 			editor.on( 'selectionChange', CKEDITOR.tools.bind( onSelectionChange, indent ) );
 			editor.on( 'selectionChange', CKEDITOR.tools.bind( onSelectionChange, outdent ) );
+
+			// [IE6/7] Raw lists are using margin instead of padding for visual indentation in wysiwyg mode. (#3893)
+			if ( CKEDITOR.env.ie6Compat || CKEDITOR.env.ie7Compat )
+			{
+				editor.addCss(
+					"ul,ol" +
+					"{" +
+					"	margin-left: 0px;" +
+					"	padding-left: 40px;" +
+					"}" );
+			}
+
+			// Register dirChanged listener.
+			editor.on( 'dirChanged', function( e )
+			{
+				var range = new CKEDITOR.dom.range( editor.document );
+				range.setStartBefore( e.data.node );
+				range.setEndAfter( e.data.node );
+
+				var walker = new CKEDITOR.dom.walker( range ),
+					node;
+
+				while ( ( node = walker.next() ) )
+				{
+					if ( node.type == CKEDITOR.NODE_ELEMENT )
+					{
+						// A child with the defined dir is to be ignored.
+						if ( !node.equals( e.data.node ) && node.getDirection() )
+						{
+							range.setStartAfter( node );
+							walker = new CKEDITOR.dom.walker( range );
+							continue;
+						}
+
+						// Switch alignment classes.
+						var classes = editor.config.indentClasses;
+						if ( classes )
+						{
+							var suffix = ( e.data.dir == 'ltr' ) ? [ '_rtl', '' ] : [ '', '_rtl' ];
+							for ( var i = 0; i < classes.length; i++ )
+							{
+								if ( node.hasClass( classes[ i ] + suffix[ 0 ] ) )
+								{
+									node.removeClass( classes[ i ] + suffix[ 0 ] );
+									node.addClass( classes[ i ] + suffix[ 1 ] );
+								}
+							}
+						}
+
+						// Switch the margins.
+						var marginLeft = node.getStyle( 'margin-right' ),
+							marginRight = node.getStyle( 'margin-left' );
+
+						marginLeft ? node.setStyle( 'margin-left', marginLeft ) : node.removeStyle( 'margin-left' );
+						marginRight ? node.setStyle( 'margin-right', marginRight ) : node.removeStyle( 'margin-right' );
+					}
+				}
+			});
 		},
 
 		requires : [ 'domiterator', 'list' ]
 	} );
 })();
 
-CKEDITOR.tools.extend( CKEDITOR.config,
-	{
-		indentOffset : 40,
-		indentUnit : 'px',
-		indentClasses : null
-	});
+/**
+ * Size of each indentation step
+ * @name CKEDITOR.config.indentOffset
+ * @type Number
+ * @default 40
+ * @example
+ * config.indentOffset = 4;
+ */
+
+ /**
+ * Unit for the indentation style
+ * @name CKEDITOR.config.indentUnit
+ * @type String
+ * @default 'px'
+ * @example
+ * config.indentUnit = 'em';
+ */
+
+ /**
+ * List of classes to use for indenting the contents. If it's null, no classes will be used
+ * and instead the {@link #indentUnit} and {@link #indentOffset} properties will be used.
+ * @name CKEDITOR.config.indentClasses
+ * @type Array
+ * default null
+ * @example
+ * // Use the classes 'Indent1', 'Indent2', 'Indent3'
+ * config.indentClasses = ['Indent1', 'Indent2', 'Indent3'];
+ */