28463 - Box layout does not provide consistent sizes

Status: VERIFIED DUPLICATE of bug 28460

(Core :: XUL, defect, P3)

Description

[rods (gone)]

Box layout is not providing the combobox with a consistent sizes for 
aReflowState.mComputedWidth (or availableWidth). When the mail compose window 
displays the last mComputedWidth size as the the "From" Combobox gets layed 
out it is "4269", then on a mouse down the mComputedWidth is "5022".

The 5022 is an incremental reflow targeted at the ListControlFrame that is a 
child (popup list child so it doesn't get reflowed automatically) of the 
ComboboxControlFrame. In normal HTML layout the incoming mComputedWidth and 
availableWidth are both UNCONSTRAINED.

Here is my debug output:
nsCCF - nsComboboxControlFrame
nsLCF - nsListControlFrame
----------------------------------------------------
OnEndDocumentLoad
03C5F98C ** nsCCF::Reflow 15 R: Resize AW: 4329 AH: UNC CW: 4269 CH: 270 NO: 2 *

**Constrained WW: 4029  HH: 240
DW: 345
03C5FA54 ** nsLCF::Reflow 19 R: Resize AW: 345 AH: UNC CW: 345 CH: UNC
** Done nsLCF DW: 345  DH: 540
[[[[ CW: 4269 30 30
** Done nsCCF DW: 4329  DH: 330
Lost focus.
nsWebShellWindow::GOTFOCUS
set focus on the recipient
WEBSHELL+ = 7
Lost focus.
Lost focus.
nsWebShellWindow::GOTFOCUS
--------------------------- MouseDown ----------------------------
03C5F98C ** nsCCF::Reflow 16 R: Increm AW: 5082 AH: UNC CW: 5022 CH: 270 NO: 2 *

-----------------Target is Dropdown or it's child------------
03C5FA54 ** nsLCF::Reflow 20 R: StyleC AW: UNC AH: UNC CW: UNC CH: UNC
** Done nsLCF DW: 3675  DH: 540
|** Done nsCCF DW: 4329  DH: 330
--------------------------- MouseUp ----------------------------
03C5F98C ** nsCCF::Reflow 17 R: Increm AW: 5082 AH: UNC CW: 5022 CH: 270 NO: 2 *

-----------------Target is Dropdown or it's child------------
03C5FA54 ** nsLCF::Reflow 21 R: StyleC AW: UNC AH: UNC CW: UNC CH: UNC
** Done nsLCF DW: 3675  DH: 540
|** Done nsCCF DW: 4329  DH: 330
--------------------------- MouseUp ----------------------------
Lost focus.

Comment 1

[rods (gone)]

Problems with bugzilla - I couldn't tell if I had submitted it or not

*** This bug has been marked as a duplicate of 28460 ***

Comment 2

[John Morrison]

duplicate entry of bug report. marking verified duplicate.