| 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 |
|
| 24 |
var 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 |
|
| 39 |
FCKIECleanup.prototype.AddItem = function( dirtyItem, cleanupFunction ) |
| 40 |
{ |
| 41 |
this.Items.push( [ dirtyItem, cleanupFunction ] ) ; |
| 42 |
} |
| 43 |
|
| 44 |
function 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 |
} |
| 69 |
|