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/* ************************************************************************
qooxdoo - the new era of web development
http://qooxdoo.org
Copyright:
2004-2006 by 1&1 Internet AG, Germany, http://www.1and1.org
License:
LGPL 2.1: http://www.gnu.org/licenses/lgpl.html
Authors:
* Sebastian Werner (wpbasti)
* Andreas Ecker (ecker)
************************************************************************ */
/* ************************************************************************
#module(ui_core)
************************************************************************ */
/*!
This singleton manage all qx.io.image.Preloader instances.
*/
qx.OO.defineClass("qx.manager.object.ImagePreloaderManager", qx.manager.object.ObjectManager,
function() {
qx.manager.object.ObjectManager.call(this);
});
/*
---------------------------------------------------------------------------
METHODS
---------------------------------------------------------------------------
*/
qx.Proto.add = function(vObject) {
this._objects[vObject.getUri()] = vObject;
}
qx.Proto.remove = function(vObject) {
delete this._objects[vObject.getUri()];
}
qx.Proto.has = function(vSource) {
return this._objects[vSource] != null;
}
qx.Proto.get = function(vSource) {
return this._objects[vSource];
}
qx.Proto.create = function(vSource)
{
if (this._objects[vSource]) {
return this._objects[vSource];
}
return new qx.io.image.Preloader(vSource);
}
/*
---------------------------------------------------------------------------
DEFER SINGLETON INSTANCE
---------------------------------------------------------------------------
*/
/**
* Singleton Instance Getter
*/
qx.Class.getInstance = qx.util.Return.returnInstance;
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