CommunityID/fckeditor/editor/_source/classes/fckiecleanup.js

69 lines
2.0 KiB
JavaScript

/*
* FCKeditor - The text editor for Internet - http://www.fckeditor.net
* Copyright (C) 2003-2009 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 ==
*
* FCKIECleanup Class: a generic class used as a tool to remove IE leaks.
*/
var FCKIECleanup = function( attachWindow )
{
// If the attachWindow already have a cleanup object, just use that one.
if ( attachWindow._FCKCleanupObj )
this.Items = attachWindow._FCKCleanupObj.Items ;
else
{
this.Items = new Array() ;
attachWindow._FCKCleanupObj = this ;
FCKTools.AddEventListenerEx( attachWindow, 'unload', FCKIECleanup_Cleanup ) ;
// attachWindow.attachEvent( 'onunload', FCKIECleanup_Cleanup ) ;
}
}
FCKIECleanup.prototype.AddItem = function( dirtyItem, cleanupFunction )
{
this.Items.push( [ dirtyItem, cleanupFunction ] ) ;
}
function FCKIECleanup_Cleanup()
{
if ( !this._FCKCleanupObj || ( FCKConfig.MsWebBrowserControlCompat && !window.FCKUnloadFlag ) )
return ;
var aItems = this._FCKCleanupObj.Items ;
while ( aItems.length > 0 )
{
// It is important to remove from the end to the beginning (pop()),
// because of the order things get created in the editor. In the code,
// elements in deeper position in the DOM are placed at the end of the
// cleanup function, so we must cleanup then first, otherwise IE could
// throw some crazy memory errors (IE bug).
var oItem = aItems.pop() ;
if ( oItem )
oItem[1].call( oItem[0] ) ;
}
this._FCKCleanupObj = null ;
if ( CollectGarbage )
CollectGarbage() ;
}