Re: Showing page while still working...

jodleren wrote:
Hi all

This is an idea of mine - a button will open this (using JS), which
then should open a window with some information - then continue
working. Idea - it may take some time, so this will process it, then
store data and pass it on to the parent window.
The idea works - only once done I get the onload - but I'd like to
have the page visible already at the flush when doing things (the
sleep as for now).
This is an idea of mine, which I hope will come to work.
Any ideas/ help ?

WBR
Sonnich


<?php include("filehead.htm"); ?> // site header <head etc...
<script type="text/javascript">
function StartUp2()
{
if (window.opener && !window.opener.closed)
{
window.opener.document.forms[0].submit();
window.opener.focus();
}
else
alert("Parent window has been closed!");
window.close();
}
</script>
</head>
<body onload="StartUp2();alert('done');">
<?php
echo "Searching for $searchfor, please wait...";
echo "</body></html>";
ob_flush();

sleep(4); // I'd place something else here
?>

Hi Sonnich,

That approach is doomed to give you all kinds of headaches.
I tried a lot of such funky stuff, and expect you'll run into all kind of problems, like I did.
For example:
1) outputbuffering might still buffer even if you ob_flush()
(IIS does this for PHP)
2) Some browser refuse to start displaying untill document is in.
(Or more subtle, they refuse to display content of eg a table, untill they see the </table>)

Allthough I got some setups running and working, I always kept this feeling: What will next version of IE/FF do? Or: Why does it work on apache/nix, but not on IIS? Etc.
My advise is: Do not do it like that, even though you might get it up and running in your development environment.

A much clearer way for you a programmer, and much more reliable way for the end users, is using AJAX.
Since you rely on JavaScript anyway with your solution, AJAX should be no objection.
EG, let JS poll every 5 seconds on the server asking if the task is done, maybe saying which percentage is done in the meantime.
You don't even need a popup/popunder for that.
That way your solution will probably also work on next version of IE/FF/webserver/etc.

Just my 2 cent.

Regards,
Erwin Moller
.

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