fckelementpath.js

FCKeditor,此HTML文本编辑器可以让web程序拥有如MS Word这样强大的编辑功能.支持当前流行的浏览器如IE 5.5+, Firefox 1.0+, Mozilla 1.3+与Netsc

/*
 * FCKeditor - The text editor for Internet - http://www.fckeditor.net
 * Copyright (C) 2003-2007 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 ==
 * 
 * File Name: fckelementpath.js
 * 	Manages the DOM anscensors element list of a specific DOM node
 * 	(limited to body, inclusive).
 * 
 * File Authors:
 * 		Frederico Caldeira Knabben (www.fckeditor.net)
 */

// TODO: Implement IE cleanup.

var FCKElementPath = function( lastNode )
{
	var eBlock = null ;
	var eBlockLimit = null ;
	
	var aElements = new Array() ;
	
	var e = lastNode ;
	while ( e ) 
	{
		if ( e.nodeType == 1 )
		{
			if ( !this.LastElement )
				this.LastElement = e ;

			var sElementName = e.nodeName.toLowerCase() ;
			
			if ( !eBlockLimit && !eBlock && FCKListsLib.PathBlockElements[ sElementName ] != null )
				eBlock = e ;
				
			// TODO: Review the Regex and move it to the RegexLib.
			if ( !eBlockLimit && (/^(?:body|td|th|caption|form)$/).test( sElementName ) )
				eBlockLimit = e ;

			aElements.push( e ) ;
			
			if ( sElementName == 'BODY' )
				break ; 
		}
		e = e.parentNode ;
	}
	
	this.Block = eBlock ;
	this.BlockLimit = eBlockLimit ;
	this.Elements = aElements ;
}