56128 - In nsObjectFrame::Paint, aDamageRect.width is zero if margins are zero

Status: RESOLVED INCOMPLETE

(Core :: Layout, defect, P4)

Description

[Peter Lubczynski]

When you set the margins to zero on a page with plugins, when Paint is called 
for the Object Frame, the width of the damage rect is always passed in as zero.

Comment 1

[karnaze (gone)]

Reassigning to Buster. Peter, if this is blocking rtm++ plugin bugs, please 
note that.

Comment 2

[Peter Lubczynski]

Currently, we don't optimize the painting region by intersecting with the damage 
rect because this damage rect isn't always correct. We just paint the whole 
plugin which causes it to flicker. The intersection is currently #ifdef'ed out 
and if this bug is something easy to fix, optimization can be turned back on.

Comment 3

[buster]

per conversation with Peter, marking Future.  This is primarily a perf bug.  No
pages that we know about suffer so much that they are unusable.

Peter, 2 things:
1) what platform(s) is this?  You have this marked platform=Macintosh with WinNT
OS, and last I checked there weren't too many of those out there.
2) could you attach a test case that triggers the problem?

Comment 4

[Hixie (not reading bugmail)]

Reassigning QA Contact for all open and unverified bugs previously under Lorca's
care to Gerardo as per phone conversation this morning.

Comment 5

[bsharma]

qa contact updated.

Comment 6

[Marcia Knous [:marcia]]

nominating for dogfood (from sdagley's list of bugs that are good candidates for 
our next release) 

Comment 7

[Heikki Toivonen (remove -bugzilla when emailing directly)]

SPAM. HTML Element component deprecated, changing component to Layout. See bug
88132 for details.

Comment 8

[Peter Lubczynski]

buster is gone!

Comment 9

[Boris Zbarsky [:bzbarsky]]

Peter, is this still an issue?

Comment 10

[Robert O'Callahan (:roc) (email my personal email if necessary)]

Ancient bug, no feedback. Closing.