SalesSystemOnline/ckeditor_3.6/ckeditor/_source/plugins/removeformat/plugin.js

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/*
Copyright (c) 2003-2011, CKSource - Frederico Knabben. All rights reserved.
For licensing, see LICENSE.html or http://ckeditor.com/license
*/

CKEDITOR.plugins.add( 'removeformat',
{
	requires : [ 'selection' ],

	init : function( editor )
	{
		editor.addCommand( 'removeFormat', CKEDITOR.plugins.removeformat.commands.removeformat );
		editor.ui.addButton( 'RemoveFormat',
			{
				label : editor.lang.removeFormat,
				command : 'removeFormat'
			});

		editor._.removeFormat = { filters: [] };
	}
});

CKEDITOR.plugins.removeformat =
{
	commands :
	{
		removeformat :
		{
			exec : function( editor )
			{
				var tagsRegex = editor._.removeFormatRegex ||
					( editor._.removeFormatRegex = new RegExp( '^(?:' + editor.config.removeFormatTags.replace( /,/g,'|' ) + ')$', 'i' ) );

				var removeAttributes = editor._.removeAttributes ||
					( editor._.removeAttributes = editor.config.removeFormatAttributes.split( ',' ) );

				var filter = CKEDITOR.plugins.removeformat.filter;
				var ranges = editor.getSelection().getRanges( 1 ),
					iterator = ranges.createIterator(),
					range;

				while ( ( range = iterator.getNextRange() ) )
				{
					if ( ! range.collapsed )
						range.enlarge( CKEDITOR.ENLARGE_ELEMENT );

					// Bookmark the range so we can re-select it after processing.
					var bookmark = range.createBookmark(),
						// The style will be applied within the bookmark boundaries.
						startNode	= bookmark.startNode,
						endNode		= bookmark.endNode,
						currentNode;

					// We need to check the selection boundaries (bookmark spans) to break
					// the code in a way that we can properly remove partially selected nodes.
					// For example, removing a <b> style from
					//		<b>This is [some text</b> to show <b>the] problem</b>
					// ... where [ and ] represent the selection, must result:
					//		<b>This is </b>[some text to show the]<b> problem</b>
					// The strategy is simple, we just break the partial nodes before the