66487 - Swapping focus between windows fails after about three rounds.

Status: VERIFIED DUPLICATE of bug 71266

(Core :: XUL, defect)

Description

[Dan]

This was found in M18 on Linux.

Steps to reproduce:

    1.) Write some JavaScript to open two or more non-modal dialogs by
        calling window.openDialog and save the return values. 
        
        For example:

        firstWindow  = window.openDialog( ... );
        secondWindow = window.openDialog( ... );

    2.) Swap focus by calling firstWindow.focus(); followed by
        secondWindow.focus();.

    3.) Repeat step 2 three or for times.

    4.) *Window.focus(); should now have no effect on the actual state of the
        screen.

Expected result:

    We should be able to change a window's focus in JavaScript as many times
    as we wish.

Comment 1

[Phil Schwartau]

Browser, not engine. Reassigning to Browser-General for further triage - 


Dan, do you have a reduced HTML testcase you could attach to this bug?
That will save us some time. See the link "Create a new attachement" above -

Comment 2

[Dan]

This was found while writing a XUL based application. It is really quite simple 
to do just spawn two windows with openDialog and try to toggle between them 
using the windows focus method. It does not effect 0.7 on WinNT. Here is an 
attempt at an on the fly example:

Registred package main.xul:

<?xml version="1.0"?>
<?xml-stylesheet href="chrome://global/skin" type="text/css"?>

<!DOCTYPE window> 

<window id="Main"
        title="Main example"
        xmlns:html="http://www.w3.org/TR/REC-html40"
        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
	onload="Main();" orient="vertical" >

    <script language="JavaScript" src="chrome://main/content/main.js"/>

    <hbox class="main-hbox">
        <button id="main1" value="main1" onclick="main1();"/>
        <button id="main2" value="main2" onclick="main2();"/>
    </hbox>
</window>

main.js:

function Main()
{
    var i;
    var o;

w1 = window.openDialog( "chrome://main1/content", "main1", "", i, o );
w2 = window.openDialog( "chrome://main2/content", "main2", "", i, o );
}

function main1() { w1.focus(); }
function main2() { w2.focus(); }

Comment 3

[Keyser Sose]

Reporter this WORKSFORME just fine on the latest nightlies. Please download one
of the latest nightlies at http://www.mozillazine.org/build_comments/, create a
new profile and try again. My bet is this will fix it.

Comment 4

[Keyser Sose]

Attachment: window.xul

Comment 5

[Keyser Sose]

Attachment: main.js

Comment 6

[Keyser Sose]

Adding testcase keyword.

Comment 7

[Fabian Guisset]

XUL or DOM? Trying XUL as first guess.
Adding saari and danm, focus and dialogs masters.

Comment 8

[Peter Trudelle]

->danm

Comment 9

[Peter Trudelle]

->future

Comment 10

[Keyser Sose]

Has anyone been able to reproduce this? If not I am going to mark it WORKSFORME.

Comment 11

[John Morrison]

I think this is bug 71266, which was fixed (although the fix may have caused
other issues).

*** This bug has been marked as a duplicate of 71266 ***

Comment 12

[James Green]

Verified dup.