175948 - Window focus switches without touching window

Status: RESOLVED WORKSFORME

(SeaMonkey :: UI Design, defect)

Description

[Jerry Baker]

2002101808 trunk

STEPS TO REPRODUCE:

1. Open a Mozilla browser window and a mail/news window.
2. Open a compose window.
3. On the Windows taskbar, select a Mozilla window to bring it to the front. 
   After that, bring the other Moz window to the front (e.g., bring the browser 
   to the front, and then the mail window, or vice versa).
4. After having raised two separate Mozilla windows, activate the compose 
   window.

RESULT:

The Mozilla windows switch so that the one you were last viewing is not the one
that is under the compose window.

This sounds a little contrived and minor, but in practice it is actually
something approaching nsCatFood I think. It disturbs your work flow as Mozilla
windows randomly switch focus as you are working.

Comment 1

[Andreas Kunz]

Works for me with Mozilla 1.4 on Win2k.
Jerry, can you reproduce this with a current Mozilla version?
And on a different Computer (if you have access to one)?

Comment 2

[Jerry Baker]

Yes, I can reproduce it on another computer and with 1.4.

Comment 3

[Jerry Baker]

I think I know what the problem is. In my testing with other applications on
Windows XP, it seems that when you mousedown on an application's taskbar button
that the button just presses inwards, but the focus is not switched to that
application until mouseup. Mozilla, however, switches focus on mousedown after
switching between Mozilla windows a couple of times. This makes for some weird
interaction with other applications as they don't come up until mouseup, but the
mozilla windows want to go away on mousedown.

Comment 4

[Jerry Baker]

You can also see this by clicking repeatedly on the same Mozilla button on the
taskbar. Periodically Mozilla loses track of a click. Strangely, it's always
after an even number of clicks (i.e., the click that is lost is an odd number).

Comment 5

[Andreas Kunz]

Jerry, I think I can also reproduce this with other apps and Mozilla not running.
Having open three Word2000 windows and activating them one after the other,
about every third time the following weirdness occurs: when I mousedown on the
taskbar button, another Word window comes to front, and only when I release the
button, the window belonging to the taskbar button comes to front.

Therefore the bug description and comment #3 seem pretty much like a bug in
Windows XP (if any). I cannot reproduce comment #4.
So maybe this bug can be resolved...

Comment 6

[Wayne Mery (:wsmwk)]

WFM Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9b2pre) Gecko/2007112702 SeaMonkey/2.0a1pre