Hi for everybody!
I found this solution to this problem that it seems very
cool to me and
I want to share!
Advantages:
- Do not use polling.
- Recognize if child window is closed or is been updated by
user .
- Found on IE and Mozilla Firefox.
--------------------------------------
PARENT WINDOW CODE
--------------------------------------
<html>
<head>
<title>Main window</title>
<script type="text/javascript">
var childWindow = null;
function openChildWindow() {
childWindow =
window.open('child.html','Childwindow','status=0,toolba
r=0,menubar=0,resizable=0,scrollbars=1,top=50,left=50,height
=375,width=650');
}
function checkChildWindowStatus() {
if (!childWindow || childWindow.closed) {
alert("Crazy flyer child window seems to
be closed! :P");
}
}
function childWindowUnloadNotification() {
// Here we get notification from child window. Here
we can
decide if suck notification is
// raised because user close child window, or
because user is
playing with F5 key.
// NOTE: We can not trust on "onUnload"
event of child window,
because if user reload or refresh
// such window in fact he is not closing child.
(However
"onUnload" event is raised!)
setTimeout('checkChildWindowStatus()', 50);
}
</script>
</head>
<body>
Press bottom to open child window<br />
<input type="button" value="Open
child window"
onclick="javascript:openChildWindow();"/>
</body>
</html>
-----------------------------------
CHILD WINDOW CODE
-----------------------------------
<html>
<head>
<title>Crazy flyer child window</title>
<script type="text/javascript">
function unloadNotification() {
// Raise unload notification to parent window
window.opener.childWindowUnloadNotification();
}
</script>
</head>
<body
onunload="javascript:unloadNotification();">
Body of the creazy child window<br />
</body>
</html>
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