/*
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* FCKeditor - The text editor for Internet - http://www.fckeditor.net
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* Copyright (C) 2003-2009 Frederico Caldeira Knabben
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*
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* == BEGIN LICENSE ==
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*
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* Licensed under the terms of any of the following licenses at your
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* choice:
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*
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* - GNU General Public License Version 2 or later (the "GPL")
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* http://www.gnu.org/licenses/gpl.html
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*
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* - GNU Lesser General Public License Version 2.1 or later (the "LGPL")
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* http://www.gnu.org/licenses/lgpl.html
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*
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* - Mozilla Public License Version 1.1 or later (the "MPL")
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* http://www.mozilla.org/MPL/MPL-1.1.html
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*
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* == END LICENSE ==
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*
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* Preload a list of images, firing an event when complete.
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*/
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var FCKImagePreloader = function()
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{
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this._Images = new Array() ;
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}
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FCKImagePreloader.prototype =
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{
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AddImages : function( images )
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{
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if ( typeof( images ) == 'string' )
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images = images.split( ';' ) ;
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this._Images = this._Images.concat( images ) ;
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},
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Start : function()
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{
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var aImages = this._Images ;
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this._PreloadCount = aImages.length ;
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for ( var i = 0 ; i < aImages.length ; i++ )
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{
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var eImg = document.createElement( 'img' ) ;
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FCKTools.AddEventListenerEx( eImg, 'load', _FCKImagePreloader_OnImage, this ) ;
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FCKTools.AddEventListenerEx( eImg, 'error', _FCKImagePreloader_OnImage, this ) ;
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eImg.src = aImages[i] ;
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_FCKImagePreloader_ImageCache.push( eImg ) ;
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}
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}
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};
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// All preloaded images must be placed in a global array, otherwise the preload
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// magic will not happen.
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var _FCKImagePreloader_ImageCache = new Array() ;
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function _FCKImagePreloader_OnImage( ev, imagePreloader )
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{
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if ( (--imagePreloader._PreloadCount) == 0 && imagePreloader.OnComplete )
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imagePreloader.OnComplete() ;
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}
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