246138 - rendering problems on gamespot.com, flashing while moving mouse over image

Status: RESOLVED FIXED

(Core :: Web Painting, defect)

Description

[Darin Fisher]

there are major rendering problems on gamespot.com.  flashing occurs on all
platforms while moving the mouse over an anchor containing an image element. 
the image has the text: "sign up for gamespot complete!"

it's as if focusing the anchor/image element results in some elements of the
page being temporarily rendered in the wrong place.  after the focus changes to
the anchor/image, things appear as they should.  moving the mouse again, off the
anchor/image, results in the flashing appearing again.

this happens on the 1.7 branch, aviary 1.0 branch, and trunk.

i'm guessing this is a regression.

Comment 1

[Hermann Schwab]

wfm Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.7) Gecko/20040608
Shockwave Flash 7.0 r19

Comment 2

[Mike Kaply [:mkaply]]

Surprisingly not a regression.

It happens in 1.4. A gamespot rewrite caused this - it appears to be related to
a CSS float.

Comment 3

[Martijn Wargers (dead)]

I can see the bug.
It happens only when I hover over the "sign up for gamespot complete!" image
when that image is at the bottom of the viewport (and there is room for iframe
with the advertisement to move).

I think this is related to bug 132337.
I think hovering over that "sign up..." image triggers some kind of reflow,
which exposes the same behavior as bug 132337.

See for a list of gamespot bugs:
http://bugzilla.mozilla.org/buglist.cgi?query_format=&short_desc_type=allwordssubstr&short_desc=&long_desc_type=substring&long_desc=&bug_file_loc_type=allwordssubstr&bug_file_loc=http%3A%2F%2Fwww.gamespot.com%2F&status_whiteboard_type=allwordssubstr&status_whiteboard=&keywords_type=allwords&keywords=&bug_status=UNCONFIRMED&bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&bug_status=RESOLVED&bug_status=VERIFIED&bug_status=CLOSED&resolution=FIXED&resolution=INVALID&resolution=WONTFIX&resolution=DUPLICATE&resolution=WORKSFORME&resolution=MOVED&emailassigned_to1=1&emailtype1=exact&email1=&emailassigned_to2=1&emailreporter2=1&emailqa_contact2=1&emailtype2=exact&email2=&bugidtype=include&bug_id=&votes=&chfieldfrom=&chfieldto=Now&chfieldvalue=&cmdtype=doit&order=Reuse+same+sort+as+last+time&field0-0-0=noop&type0-0-0=noop&value0-0-0=

Comment 4

[Boris Zbarsky [:bzbarsky]]

This bug needs a minimal testcase....

Comment 5

[José Jeria]

I believe that this is bug 132337. This happends when a float has overflow auto. 
http://bugzilla.mozilla.org/attachment.cgi?id=147532&action=view

Resizing this testcase shows the flicker, making the content in the div bigger
will also show the flicker when loading the page.

Comment 6

[Martijn Wargers (dead)]

Attachment: Minimalish testcase from the site

Comment 7

[Peter van der Woude [:Peter6]]

*** Bug 252121 has been marked as a duplicate of this bug. ***

Comment 8

[Martijn Wargers (dead)]

*** Bug 256746 has been marked as a duplicate of this bug. ***

Comment 9

[Brandon Amedee]

I also see this bug (or something very similar) on two other sites:
http://www.ign.com/ has a flash object that flashes toward the top-left of the
page while the page is loading.
http://www.exonyte.com/ (not related to myself, long story) has a small div on
the right containing page options. It flashes towards the top of the page
whenever you resize the window.

Comment 10

[Martijn Wargers (dead)]

This bug was fixed by the checkin for bug 238493.

Comment 11

[Steve England [:stevee]]

*** Bug 286496 has been marked as a duplicate of this bug. ***