How to capture browser close event?
Question
I want to capture the browser close event in my application and show a confirm box to user. I am using JSF 2.0 and richfaces 4.0.
4 answers
solution1
17 2011-07-08 09:37:25
window.onbeforeunload = function ()
{
var shallIAlertUser = Do_Whatever(); //get boolen value
if (shallIAlertUser) {
//this will alert user
return 'Are you sure?';
}
else {
//this wont
window.onbeforeunload = undefined;
}
};
solution2
6 2011-07-08 09:28:19
Use the beforeunload event.
window.onbeforeunload = function(event) {
event = event || window.event;
var confirmClose = 'Are you sure?';
// For IE and Firefox prior to version 4
if (event) {
event.returnValue = confirmClose;
}
// For Safari
return confirmClose;
}
Keep in mind this will be fire for other events besides closing the window, such as reloading and form submission.
solution3
5 2011-07-08 09:28:15
onbeforeunload
< body onbeforeunload="alert('Closing');">
Example :
<html>
<head>
<title>`onbeforeunload` Event Demo</title>
</head>
<body onbeforeunload="return 'Are you sure you want to exit ?';">
</body>
</html>
solution4
1 2011-07-08 09:27:31
将处理程序附加到unload事件。
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