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