IE onbeforeunload not firing ExternalInterface callback
I have a Flash movie embedded with swfobject in a html container.
Through ExternalInterface
I have registered a Javascript function to fire callback to my flash app.
ExternalInterface.addCallback("notifyClose", notifyOnClose );
The Javascript function is added as an event listener to fire onbeforeunload
.
<script language="JavaScript">
function getSWF(movieName) {
if (navigator.appName.indexOf("Microsoft") != -1){
return window[movieName];
}else { return document[movieName];}
}
var bye = function() {
getSWF('flashContainer').notifyClose('> WE ARE CLOSING APP!');
//alert('WE ARE CLOSING APP!.');
};
var hola = function(){
getSWF('flashContainer').notifyClose('> WE ARE opening APP!');
alert('WE ARE opening APP!.');
};
if(window.addEventListener) {
window.addEventListener('load', hola,false);
window.addEventListener('beforeunload', bye, false);
} else if (window.attachEvent) {
window.attachEvent('onload', hola);
window.attachEve开发者_开发知识库nt('onbeforeunload', bye);
}
</script>
I have tested in Firefox and IE. Firefox works as expected but not in IE.
In IE I get notified in Flash with the onload
message, but not onbeforeunload
.
Is it some kind of sandbox restriction? Just bad code?
The problem is the "on" in your code below in the attachEvent().
if(window.addEventListener) {
window.addEventListener('load', hola,false);
window.addEventListener('beforeunload', bye, false);
} else if (window.attachEvent) {
window.attachEvent('onload', hola);
window.attachEvent('onbeforeunload', bye);
}
Try something like the code below for your Event Listener code and see the following link for more information: http://bytes.com/topic/javascript/answers/147027-addeventlistener-function-ie
//*** This code is copyright 2003 by Gavin Kistner, !@phrogz.net
//*** It is covered under the license viewable at http://phrogz.net/JS/_ReuseLicense.txt
//*** Reuse or modification is free provided you abide by the terms of that license.
//*** (Including the first two lines above in your source code satisfies the conditions.)
//***Cross browser attach event function. For 'evt' pass a string value with the leading "on" omitted
//***e.g. AttachEvent(window,'load',MyFunctionNameWithoutParenthesis,false);
function AttachEvent(obj,evt,fnc,useCapture){
if (!useCapture) useCapture=false;
if (obj.addEventListener){
obj.addEventListener(evt,fnc,useCapture);
return true;
} else if (obj.attachEvent) return obj.attachEvent("on"+evt,fnc);
else{
MyAttachEvent(obj,evt,fnc);
obj['on'+evt]=function(){ MyFireEvent(obj,evt) };
}
}
//The following are for browsers like NS4 or IE5Mac which don't support either
//attachEvent or addEventListener
function MyAttachEvent(obj,evt,fnc){
if (!obj.myEvents) obj.myEvents={};
if (!obj.myEvents[evt]) obj.myEvents[evt]=[];
var evts = obj.myEvents[evt];
evts[evts.length]=fnc;
}
function MyFireEvent(obj,evt){
if (!obj || !obj.myEvents || !obj.myEvents[evt]) return;
var evts = obj.myEvents[evt];
for (var i=0,len=evts.length;i<len;i++) evts[i]();
}
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