PS2-Calling an ActionListener on browser window close using JS eventQueuing

Question

Hi ,
I need to call an Action Listener(to do some post processing) when a browser window is closed.
To achieve this I am using the ADF Javascript APIs.
I tried the following but neither worked :(
1)Having the following JS code directly in my jspx page -
<af:resource type="javascript">
window.onunload = function(evt){
var button=AdfPage.PAGE.findComponentByAbsoluteId("button"); /** Getting the Abs Id of a button which has the needed ActionListener attached to it */
AdfActionEvent.queue(button,true);
</af:resource>
2)Have a clientListener under the af:Document with type as "load" which calls a JS method as below
<af:resource type="javascript">
function onLoad(evt){
window.onunload = function(evt){
var button=AdfPage.PAGE.findComponentByAbsoluteId("button");
evt.cancel(); /* trying to make sure that this doesnot get propagated to the server*/
AdfActionEvent.queue(button,true);
</af:resource>
3) Having a clientListener call a JS method which queues a Server Listener to call a Action Listener.
window.onunload = function (event){
var source = event.getSource();
AdfCustomEvent.queue(source,"serverListenerMethod",{},false);
Also client attribute for the "button" is true.
I am making sure the code is put under metaContainer tag of the af:document
Thanks

Answer 1

Yes I had tried that .. the alerts fire fine as mentioned in my previous posts too ...
But the issue here is to call a server Listener which will call some bean code for some logic when a browser window is unloaded /closed!
As per Frank's post this is not possible using a simple clientListenr as -
"the browser native JavaScript unload event itself is not very helpful to send an event to the server using the af:serverListener tag. The reason for this is that when the unload event fires, the page already has been unloaded and the ADF Faces AdfPage object needed to queue the custom event already returns null. "