240415 - Dual-monitor setup causes alt txt to appear on wrong monitor

Status: VERIFIED DUPLICATE of bug 135079

(SeaMonkey :: General, defect)

Description

[Marc J. Miller]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.6) Gecko/20040206 Firefox/0.8
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.6) Gecko/20040206 Firefox/0.8

At times while navigating through Netscape Mail on my Windows 2000 machine with
a Matrix G550 DualHead graphics adapter, when Firefox 0.8 is on my 2nd
(rightmost) monitor, the ALT TXT for certain images/links on the toolbar
frequently shows up on the primary (leftmost) monitor.

Reproducible: Sometimes
Steps to Reproduce:
1.  Select your favorite spam
2.  Forward to spamcop
3.  Hit "Delete" button just before ALT TXT box shows.

Actual Results:  
Message will be deleted, "Delete Message" box appears on left monitor.

Expected Results:  
ALT TXT should not have appeared, or should have appeared where toolbar button was.

Comment 1

[Olivier Cahagne]

*** This bug has been marked as a duplicate of 135079 ***

Comment 2

[Henrik Skupin [:whimboo][⌚️UTC+2]]

verified.

Comment 3

[John Sullivan]

I don't believe this is a dupe of bug 135079 - the patch I posted to that fixes
a specific problem with handling mouse coordinates (they can be negative, were
being treated as unsigned shorts in a cast to int and were therefore ending up
large and outside the relevant bounding rectangle), whereas popup
tooltips/windows have their own positioning code and I suspect the problem lies
elsewhere. (See bug 159277 comment 24.)

I'd be interested to know whether my patch fixes this bug (I don't use moz mail,
any alt->tooltip extension, and toolbar tooltips just don't appear at all in
Firefox 0.8 on the second monitor. They appear in the right place with the patch
though.)

If the problem is tooltips appearing on the primary when the source window is on
the secondary monitor, then I suspect it is due to inappropriate clipping of the
new window position to positive coordinates, which my patch does not address.