123813 - DOM Inspector hangs on resize

Status: RESOLVED DUPLICATE of bug 121583

(Other Applications :: DOM Inspector, defect)

Description

[Flo Ledermann]

When i use DOM inspector on a local webpage (external stylesheet linked into it,
just plain html with h1, p etc...) DOM Inspector hangs when i try to resize it
by dragging the lower right corner of the window. It only hangs when resizing
the window higher than ~900 pixels. If i alt-tab to another mozilla window, the
window size is reset and mozilla continues to work as normal.

using 0.9.8 on win2k

Comment 1

[Flo Ledermann]

Attachment: rather minimal testcase for this bug

Comment 2

[Flo Ledermann]

did some more research to isolate the problem...

DOM inspector hangs, if the "Object - CSS Style Rules" pane is visible on the
right and you resize the window so that the scrollbar would appear/dissapear.

attached a "minimal" testcase, although this is reproducible on every page. to
reproduce, load the page, start DOM inspector, select "Object - CSS Style rules"
on the right hand side and resize the window until scrollbars (would) appear. ->
mozilla hangs, but you can alt-tab to another window and it continues running.

Comment 3

[Christopher Aillon (sabbatical, not receiving bugmail)]

Dupe of bug 121583?

Comment 4

[John Levon]

Flo, does it sound like a dupe ? Does CPU hit 100% or do you get
an actual hang ?

Comment 5

[Christopher Aillon (sabbatical, not receiving bugmail)]

Comment #0:
> If i alt-tab to another mozilla window, the window size is reset and mozilla 
> continues to work as normal.

Comment #2:
> resize the window until scrollbars (would) appear. -> mozilla hangs, but you
> can alt-tab to another window and it continues running.

Pretty sure that this is bug 121583.  That's a good description of what happens
there.  It's happening all over the place.  We'll just add inspector to the list
now.

*** This bug has been marked as a duplicate of 121583 ***