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[Javascript] Need help determining when remote window closes.

  • From: glenn_lanier at netzero.net (Glenn E. Lanier, II)
  • Subject: [Javascript] Need help determining when remote window closes.
  • Date: Tue Jun 21 10:34:55 2005
Hi, I want to open a new browser window, let the user use that window for
several minutes, and when they close the window, I'd like to change the page
displayed in the original window. 

According to numerous articles found Googling, this should work, but on my WinXP
system, using Firefox and IE, I get nothing (when allowing pop-ups, if pop-ups
are disabled, IE reports the window is closed, Firefox gives a JS error on
checking the window handle). No JS errors, no notifications, nothing. Any
pointers would be appreciated.

File 1 contains the code I'm using to open the window, to check for closure, and
a form textarea that I update with the time (mostly so I know my timer is firing
properly).

---- FILE 1 BEG ----

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd";>
<html>
<head>
<title>Opener Page</title>
</head>
<body>
<h1>Opener</h1>
<form name="frmOutput">
<textarea name="txtOutput" rows=5 cols=80></textarea>
</form>
<p><a href="javascriptstopChecking();">Stop Checking</A></p>
<script language="Javascript">
log("Start", true);

var remoteWin = window.open("Remote.html", "remote", 'toolbar=no, location=no,
directories=no, status=yes, menubar=no, width=795, height=500, resizable=yes,
scrollbars=yes, screenx=0, screeny=0, top=0, left=0');
var timer = null;

function checkClosed()
{
log("Checking...", false);
timer = setTimeout("checkClosed()", 5000); // Check every 5 seconds.
if (!remoteWin)
{
alert("Window no longer exists");
stopChecking();
}
else if (remoteWin.Closed)
{
alert("Window Closed"); 
stopChecking();
} 
}

timer = setTimeout("checkClosed()", 5000); // Check every 5 seconds.


function stopChecking()
{
log("Stop checking.", false);
clearTimeout(timer);
}


function log(sText, bClearContents)
{
var d = new Date();
var s = d.getFullYear() + "." + d.getMonth() + "." + d.getDate() + " " +
d.getHours() + ":" + d.getMinutes() + ":" + d.getSeconds() + " " + sText +
"\r\n";
if (bClearContents)
{
document.frmOutput.txtOutput.value = s; 
}
else
{
document.frmOutput.txtOutput.value = s + document.frmOutput.txtOutput.value;
}
}
</script>


</body>
</html>


---- FILE 1 END ----

File 2 contains some filler text. I can not change the source of this window
(when live).
---- FILE 2 BEG (remote.html) ----

<html><head><title>Remote</title></head><body><h1>Remote Window</h1><p>Closing
me should alert the original window or allow the original window to know when I
<a href="javascriptwindow.close();">close</a>.</p></body></html>

---- FILE 2 END (remote.html) ----

Thanks for any help.
Glenn
 
  _____  

Glenn E. Lanier II

* Email:  <mailto:glenn_lanier@xxxxxxxxxxx> glenn_lanier@xxxxxxxxxxx
 
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