420456 - Long menus can sometimes have large gap at bottom

Status: NEW

(Core :: XUL, defect)

Description

[Steve England [:stevee]]

Attachment: note the large gap at the bottom of the bookmark menu

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9b4pre) Gecko/2008022923 Minefield/3.0b4pre ID:2008022923

1. New profile, start firefox
2. Make a new bookmark folder on your bookmark toolbar
3. Fill this bookmark folder with 100s of bookmarks.
4. Resize your browser window so it's half the vertical height of your desktop
5. Move your browser window so its menubar is roughly in the vertical middle of your desktop.
6. Open the bookmark menu with 100s of bookmarks in.
7. Scroll to the bottom of the bookmark menu (so you see "Open all in tabs"
8. Left click to the side of the bookmark menu to dismiss it
9. Maximize the browser window
10. Left click on your bookmark folder.

Expected:
- Bookmark menu items listed to the bottom of the window

Actual:
- Bookmark menu items listed to about half way, then a great big gap to the end of the menu

No gap: 20071219_0523_firefox-3.0b3pre.en-US.win32 (but position not remembered either)
Gap: 20071219_0838_firefox-3.0b3pre.en-US.win32

Checkins between 2007-12-19 05:23 and 2007-12-19 08:38 :
http://bonsai.mozilla.org/cvsquery.cgi?treeid=default&module=all&branch=HEAD&branchtype=match&dir=&file=&filetype=match&who=&whotype=match&sortby=Date&hours=2&date=explicit&mindate=2007-12-19+05%3A23&maxdate=2007-12-19+08%3A38&cvsroot=%2Fcvsroot

So maybe caused by bug 407601. And this bug is kinda like bug 394301 too.

CC'ng neil.

Comment 1

[Neil Deakin]

Looks like what is happening here is that the second time the menu is opened, the popup is made larger due to more available space, but the scroll position is not being reduced to account for the fact that it can't scroll as far down any more.