/pigeoncms/Plugins/fckeditor/editor/_source/classes/fckiecleanup.js

 1/*
 2 * FCKeditor - The text editor for Internet - http://www.fckeditor.net
 3 * Copyright (C) 2003-2009 Frederico Caldeira Knabben
 4 *
 5 * == BEGIN LICENSE ==
 6 *
 7 * Licensed under the terms of any of the following licenses at your
 8 * choice:
 9 *
10 *  - GNU General Public License Version 2 or later (the "GPL")
11 *    http://www.gnu.org/licenses/gpl.html
12 *
13 *  - GNU Lesser General Public License Version 2.1 or later (the "LGPL")
14 *    http://www.gnu.org/licenses/lgpl.html
15 *
16 *  - Mozilla Public License Version 1.1 or later (the "MPL")
17 *    http://www.mozilla.org/MPL/MPL-1.1.html
18 *
19 * == END LICENSE ==
20 *
21 * FCKIECleanup Class: a generic class used as a tool to remove IE leaks.
22 */
23
24var	FCKIECleanup = function( attachWindow )
25{
26	// If the attachWindow already have a cleanup object, just use that one.
27	if ( attachWindow._FCKCleanupObj )
28		this.Items = attachWindow._FCKCleanupObj.Items ;
29	else
30	{
31		this.Items = new Array() ;
32
33		attachWindow._FCKCleanupObj = this ;
34		FCKTools.AddEventListenerEx( attachWindow, 'unload', FCKIECleanup_Cleanup ) ;
35//		attachWindow.attachEvent( 'onunload', FCKIECleanup_Cleanup ) ;
36	}
37}
38
39FCKIECleanup.prototype.AddItem = function( dirtyItem, cleanupFunction )
40{
41	this.Items.push( [ dirtyItem, cleanupFunction ] ) ;
42}
43
44function FCKIECleanup_Cleanup()
45{
46	if ( !this._FCKCleanupObj || ( FCKConfig.MsWebBrowserControlCompat && !window.FCKUnloadFlag ) )
47		return ;
48
49	var aItems = this._FCKCleanupObj.Items ;
50
51	while ( aItems.length > 0 )
52	{
53
54		// It is important to remove from the end to the beginning (pop()),
55		// because of the order things get created in the editor. In the code,
56		// elements in deeper position in the DOM are placed at the end of the
57		// cleanup function, so we must cleanup then first, otherwise IE could
58		// throw some crazy memory errors (IE bug).
59		var oItem = aItems.pop() ;
60		if ( oItem )
61			oItem[1].call( oItem[0] ) ;
62	}
63
64	this._FCKCleanupObj = null ;
65
66	if ( CollectGarbage )
67		CollectGarbage() ;
68}