236911 - XUL Menulist (menupopup) appears incorrectly when using CSS visibility

Status: RESOLVED WORKSFORME

(Core :: XUL, defect)

Description

[Derek Seymour]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.6) Gecko/20040206 Firefox/0.8
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.6) Gecko/20040206 Firefox/0.8

When the CSS property 'visibility' is initially set to 'hidden' for a XUL
menulist and some javascript changes the property to 'visible', the popup menu
appears incorrectly (appears scrambled or sometimes all black in color).

Reproducible: Always
Steps to Reproduce:
1. Open the attached XUL file -OR- goto the following url:
http://www.seymoursolutions.com/support/bugs/other/mozbug1.php
2. When the page is loaded, the menulist should be hidden.
3. Click on the 'Show' button and the menulist will appear.
4. If you click on the menulist, the popup appears incorrectly (scrambled or
sometimes black in color).

Actual Results:  
The XUL menulist popup appears incorrectly (scrambled or sometimes black in color).

Expected Results:  
The XUL menulist popup should display as any other menulist that did not
initially have the CSS property 'visibility' set to 'hidden'.

Computer configuration...
OS: Window XP Professional Version 2002 Service Pack 1
CPU: AMD Duron 950Mhz
Memory: 256 MB of RAM
Video Card: ATI 3D Rage Pro AGP 2X

Comment 1

[Derek Seymour]

Attachment: Testcase #1

Comment 2

[Derek Seymour]

Attachment: CSS for Testcase #1

Comment 3

[Derek Seymour]

Attachment: JavaScript for Testcase #1

Comment 4

[Derek Seymour]

Attachment: Revision: Testcase #1

Updated URLs in testcase.

Comment 5

[Derek Seymour]

Attachment: Testcase #1 (Revision 2)

Yet another revision of the first testcase.

Corrected an XML parse error.

Comment 6

[Derek Seymour]

*** Bug 236474 has been marked as a duplicate of this bug. ***

Comment 7

[Derek Seymour]

Attachment: Screenshot of Testcase #1

Comment 8

[Derek Seymour]

Not only is the menu drawn incorrectly, but it also doesn't function properly
(it will not allow you to select an item).

Comment 9

[Jesiah S]

I see this on LInux 2004040808

Comment 10

[Derek Seymour]

Tested on FireFox 0.9, and the bug is still occurring...

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7) Gecko/20040614 Firefox/0.9

Comment 11

[Derek Seymour]

Tested on FireFox 1.0.7, and the bug is still occurring...

Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7.12) Gecko/20050915
Firefox/1.0.7

Comment 12

[Derek Seymour]

Tested on FireFox 3.5.6 - doesn't appear to be occurring any longer...

Mozilla/5.0 (Windows; U; Windows NT 5.2; en-US; rv:1.9.1.6) Gecko/20091201 Firefox/3.5.6

Comment 13

[Alin Ilea, Desktop QA]

Marking this as Resolved > Worksforme based on comment 12. Feel free to re-open if the issue is still reproducible on your end in the latest FF versions.