385535 - [mac] a tree inside a panel duplicates all the elements above it

Status: RESOLVED FIXED

(Core :: XUL, defect)

Description

[Asaf Romano (gone)]

a tree inside a panel duplicates the element above it.

Screenshot+testcase coming.

Comment 1

[Asaf Romano (gone)]

Attachment: testcase

Comment 2

[Asaf Romano (gone)]

Attachment: screenshot

Comment 3

[Asaf Romano (gone)]

This is, of course, mac only.

Comment 4

[Neil Deakin]

Attachment: simpler test

This is a simplified testcase. Removing the width/height attributes causes it to work.

Comment 5

[Neil Deakin]

Attachment: another test

Another test, without using a tree, which shows that the bug appears whenever a child of a popup has a view/widget. Looks to be painting a copy of the popup's view inside the child's view area.

The frames are constructed properly and the view tree looks like this:

0x36f63d50 (widget=0x36f63db0[2] z=0 pos={0,0,5520,2040}) {0,0,5520,2040} z=0 vis=1 clientData=0x224b49c <
  0x36fb3d80 (widget=0x36fb3e90[4] z=0 pos={0,0,5460,3360}) {3240,960,5460,3360} z=0 vis=1 clientData=0x224d328 <
    0x36fbe630 (widget=0x36fbe7b0[3] z=2147483647 pos={120,2160,5220,1080}) {120,2160,5220,1080} z=0 vis=1 clientData=0x224daa8 <
    >
  >
  0x36f9b2c0 (widget=0x36f9b3c0[1] z=2147483647 pos={0,0,0,0}) {0,0,0,0} z=2147483647 vis=0 clientData=0x224bc1c <
  >
>

Comment 6

[Neil Deakin]

In fact, this is a cocoa widgets regression.

Comment 7

[Neil Deakin]

Attachment: don't adjust widget if there is no view

The issue is that the wrong widget is being used when painting the child views of a popup. The adjustment done is DispatchEvent should only be done if there isn't a view, otherwise we end of using the popup's widget to draw every child view.