701695 - Popup stuck in infinite redraw loop

Status: RESOLVED WORKSFORME

(Core :: Graphics, defect)

Description

[Ian Nartowicz]

Attachment: bugzilla.png

User Agent: Mozilla/5.0 (X11; Linux i686; rv:7.0.1) Gecko/20100101 Firefox/7.0.1
Build ID: 20110928134238

Steps to reproduce:

1. Create a context menu (attached to a toolbar button in my case)
2. Create a menuitem with the longest label on the menu
3. Create an accesskey that is not in the label
4. Open the menu


Actual results:

The first time, a weird flashing rectangle appears, approximately the size of the popup, but showing a smeared and constantly changing copy of what is behind the popup.

Subsequently the popup displays cleanly.

Attached is a screenshot showing a single redraw frame in the bottom right corner.  The odd offset rectangle continuously changes, using a high proportion of CPU.


Expected results:

The popup should appear cleanly.

Comment 1

[Ian Nartowicz]

Attachment: Second popupshowing, correct menu

This shows how the menu should appear.  If the accesskey appears in the menu there is no problem.  If the label plus the appended accesskey is shorter than the width of the popup before appending the accesskey then there is no problem.

Comment 2

[Ioana (away)]

Can you still reproduce this issue on current Firefox builds?

Comment 3

[Ian Nartowicz]

Looks like this bug is long gone.  I tested with some versions I have to hand:
4: broken
7: broken
10 ESR: OK
17 ESR: OK
24: OK