@qooxdoo/framework
Version:
The JS Framework for Coders
129 lines (89 loc) • 3.14 kB
JavaScript
/* ************************************************************************
qooxdoo - the new era of web development
http://qooxdoo.org
Copyright:
2004-2008 1&1 Internet AG, Germany, http://www.1und1.de
License:
MIT: https://opensource.org/licenses/MIT
See the LICENSE file in the project's top-level directory for details.
Authors:
* Sebastian Werner (wpbasti)
* Fabian Jakobs (fjakobs)
************************************************************************ */
/**
* This handler provides a "load" event for iframes
*/
qx.Class.define("qx.event.handler.Iframe",
{
extend : qx.core.Object,
implement : qx.event.IEventHandler,
/*
*****************************************************************************
STATICS
*****************************************************************************
*/
statics :
{
/** @type {Integer} Priority of this handler */
PRIORITY : qx.event.Registration.PRIORITY_NORMAL,
/** @type {Map} Supported event types */
SUPPORTED_TYPES : {
load: 1,
navigate: 1
},
/** @type {Integer} Which target check to use */
TARGET_CHECK : qx.event.IEventHandler.TARGET_DOMNODE,
/** @type {Integer} Whether the method "canHandleEvent" must be called */
IGNORE_CAN_HANDLE : false,
/**
* Internal function called by iframes created using {@link qx.bom.Iframe}.
*
* @signature function(target)
* @internal
* @param target {Element} DOM element which is the target of this event
*/
onevent : qx.event.GlobalError.observeMethod(function(target) {
// Fire navigate event when actual URL diverges from stored URL
var currentUrl = qx.bom.Iframe.queryCurrentUrl(target);
if (currentUrl !== target.$$url) {
qx.event.Registration.fireEvent(target, "navigate", qx.event.type.Data, [currentUrl]);
target.$$url = currentUrl;
}
// Always fire load event
qx.event.Registration.fireEvent(target, "load");
})
},
/*
*****************************************************************************
MEMBERS
*****************************************************************************
*/
members :
{
/*
---------------------------------------------------------------------------
EVENT HANDLER INTERFACE
---------------------------------------------------------------------------
*/
// interface implementation
canHandleEvent : function(target, type) {
return target.tagName.toLowerCase() === "iframe";
},
// interface implementation
registerEvent : function(target, type, capture) {
// Nothing needs to be done here
},
// interface implementation
unregisterEvent : function(target, type, capture) {
// Nothing needs to be done here
}
},
/*
*****************************************************************************
DEFER
*****************************************************************************
*/
defer : function(statics) {
qx.event.Registration.addHandler(statics);
}
});