154926 - dhtml repaint jittery

Status: RESOLVED FIXED

(Core :: Web Painting, defect, P3)

Description

[alanjstr]

Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.1a+) Gecko/20020625

The redrawing of the buttons on this page causes lots of flickering of the
buttons as they move.  Its also causing flickering as it passes under the layer
at the top.

Comment 1

[alanjstr]

It looks like it is repositioning all of the rest of the buttons every time it
moves the one that is supposed to be moving.

Can I get a confirmation that this isn't just on my PC?  It looks fine with IE.

Comment 2

[Cees T.]

Confirmed on Windows ME using trunk 2002072718.

Looks related to bug 101698, 136549, and 136555.

Comment 3

[alanjstr]

I might says dupe bug 136549, but I'd want someone more knowledable to confirm.

Comment 4

[Markus Hübner]

confirming - using trunk build 2002121108 on win-xp pro,1.1ghz,512ram,GeForce2 
Go (32MB@32Bit color depth).

Related to this seem bug 170702 and bug 183269
 

Comment 5

[Markus Hübner]

Though I have to say that flickering is less comaring to Mozilla1.1b.
Testing Mozilla 1.2.1 it has the same visible flickering as with latest trunk 
build.

Comment 6

[alanjstr]

I don't think this really matches the other ones.  My site positions via
absolutes.  It might all be related, but none of the descriptions sound similar
enough.  

Comment 7

[Boris Zbarsky [:bzbarsky]]

So.... where are the buttons that are getting repainted?  I don't really see any
buttons on the page....

Comment 8

[alanjstr]

I've changed the layout of my homepage since.  The geocities page has some
animation, but now I see a different broken behavior.  I'll check it more
carefully later.

Right now changing tabs after the animation has finished results in the buttons
being in the proper place, except for a hole in the webpage where I can see the
tab I just visited before it.  Sorry I can't do screenshots right now.  

Currently using Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:1.4b)
Gecko/20030427 Mozilla Firebird/0.6 on this machine.

Comment 9

[Boris Zbarsky [:bzbarsky]]

The remaining problem is a view painting one for the fixed-pos element...

Comment 10

[Markus Hübner]

this seems to be related to bug 79315

Comment 11

[Martijn Wargers (dead)]

Attachment: testcase, not minimized

Testcase based from site that shows the jitteriness.
I think I've seen a bug (multiple bugs?) somewhere else about this.

Comment 12

[Boris Zbarsky [:bzbarsky]]

So basically moving visibility:hidden divs shows some jitter?

Comment 13

[Martijn Wargers (dead)]

Yes, and the use of position:fixed is also an important factor in triggering the
bug.

Comment 14

[Boris Zbarsky [:bzbarsky]]

Right.  That's the widget thing biting us... roc, do we have a bug for having a
single widget per window yet?

Comment 15

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

don't think so.

Comment 16

[Martijn Wargers (dead)]

I think this is WFM in my debug build that has the "frame display lists" patch in it (bug 317375).

Comment 17

[Peter van der Woude [:Peter6]]

Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9a1) Gecko/20060126 Firefox/1.6a1 ID:2006012614

WFM