WebRoot/fckeditor/editor/_source/classes/fckdomrange.js

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/*
 * FCKeditor - The text editor for Internet - http://www.fckeditor.net
 * Copyright (C) 2003-2008 Frederico Caldeira Knabben
 *
 * == BEGIN LICENSE ==
 *
 * Licensed under the terms of any of the following licenses at your
 * choice:
 *
 *  - GNU General Public License Version 2 or later (the "GPL")
 *    http://www.gnu.org/licenses/gpl.html
 *
 *  - GNU Lesser General Public License Version 2.1 or later (the "LGPL")
 *    http://www.gnu.org/licenses/lgpl.html
 *
 *  - Mozilla Public License Version 1.1 or later (the "MPL")
 *    http://www.mozilla.org/MPL/MPL-1.1.html
 *
 * == END LICENSE ==
 *
 * Class for working with a selection range, much like the W3C DOM Range, but
 * it is not intended to be an implementation of the W3C interface.
 */

var FCKDomRange = function( sourceWindow )
{
	this.Window = sourceWindow ;
	this._Cache = {} ;
}

FCKDomRange.prototype =
{

	_UpdateElementInfo : function()
	{
		var innerRange = this._Range ;

		if ( !innerRange )
			this.Release( true ) ;
		else
		{
			// For text nodes, the node itself is the StartNode.
			var eStart	= innerRange.startContainer ;

			var oElementPath = new FCKElementPath( eStart ) ;
			this.StartNode			= eStart.nodeType == 3 ? eStart : eStart.childNodes[ innerRange.startOffset ] ;
			this.StartContainer		= eStart ;
			this.StartBlock			= oElementPath.Block ;
			this.StartBlockLimit	= oElementPath.BlockLimit ;

			if ( innerRange.collapsed )
			{
				this.EndNode		= this.StartNode ;
				this.EndContainer	= this.StartContainer ;
				this.EndBlock		= this.StartBlock ;
				this.EndBlockLimit	= this.StartBlockLimit ;
			}
			else
			{
				var eEnd	= innerRange.endContainer ;