136555 - table in div is jumping using CSS-overflow and a mouseover-js

Status: RESOLVED WORKSFORME

(Core :: Layout, defect, P3)

Description

[seth]

From Bugzilla Helper:
User-Agent:  Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:0.9.9+)
Gecko/20020409
BuildID:    20020409

In http://www.bierdatenbank.de/testDir/biertests_standard.htm
there's a div, which should NOT jump.
but (div style="overflow:auto;")(table)...(/table)(/div) begins jumping, when 
using a special dynamic tooltip-javascript (from www.dhtmlcentral.com). and 
moving the mouse over the navigation-menu-links

Reproducible: Always
Steps to Reproduce:
1. only mozilla (and netscape6.x)
2. http://www.bierdatenbank.de/testDir/biertests_standard.htm 
3. mouse mouse over the menu-links (left hand, bgcolor=black)

Actual Results:  the centered maintable began jumping (and a tooltip appeared)

Expected Results:  the centered maintable should not jump (there should just 
appear a tooltip)

the error needs:
- mozilla
- style="overflow:auto;" (using "hidden" there's no error!)
- the tooltip-javascript

in my opinion the css-overflow is responsible

Comment 1

[R.K.Aa.]

i see no flicer in the URL here, nor in the testcase, using 2002040903 XP.
i see severe flicker in bug 136549 though - perhaps another bug.

Comment 2

[R.K.Aa.]

forget comment 1 - i DO see flicer! Comment was intended for another bug.

Comment 3

[Jacob Kjome]

may be related to bug 136549 (and, originally, bug 128133)

Jake

Comment 4

[Boris Zbarsky [:bzbarsky]]

jkeiser, does your overflow-and-scrolling-stuff patch fix this?

Comment 5

[Christine Hoffman]

Changing QA contact

Comment 6

[John Keiser (jkeiser)]

I see it still in Linux 2002041407, which landed after bug 119849.  It is
entirely possible that there is a similar problem here.  I fixed one instance of
the problem in that bug, but not all.  If anyone calls
nsBoxToBlockAdaptor::GetPrefSize(), for example, the unconstrained reflow will
happen again.

Comment 7

[seth]

maybe related to bug 96756, because position:relative; fixes the
flickering problem...

Comment 8

[Boris Zbarsky [:bzbarsky]]

Is this still a problem?

Comment 9

[Jacob Kjome]

If bug 136549 is related to this, then yes, it is still a problem.  See the most
recently posted minimized testcase in that bug.  There is a slight flicker at
the top of the screen early on when using the menus.  It doesn't persist, but it
shouldn't be there at all.

Jake

Comment 10

[Boris Zbarsky [:bzbarsky]]

Bug 136549 is bug 136549.  What does that have to do with this bug?  Unless
you're saying this should be marked duplicate?

Comment 11

[Jacob Kjome]

If you don't think that bug 136549 has anything to do with this bug (duplicate
or whatever), then ignore my comment.  I just thought it might be related.  If
the same problem is causing the issue in that bug as this and it is apparent
that the testcase in that bug still displays the problem, then this bug is still
an issue.  It was just a hunch.  I have not looked at the Mozilla code that
might be causing the issue as you probably have, so I defer to your wisdom.

Jake

Comment 12

[Boris Zbarsky [:bzbarsky]]

Well, it's just a matter of:

1)  If the only testcase that demonstrates this bug is in bug 136549 then this is
    a duplicate.
2)  If the testcase in bug 136549 has nothing to do with this bug, then this is
    worksforme.

Randomly picking a resolution....

Comment 13

[seth]

hi!

<<If the only testcase that demonstrates this bug is in bug 136549 then this is 
a duplicate.>>
# you can see a severe flickering on 
http://www.bierdatenbank.de/testDir/biertests_standard.htm, whether its related 
do bug 136549, or not...

cheers
seth

Comment 14

[seth]

sorry,
i was unfortunately using an wrong (older) version of mozilla. in 1.3 there is 
no flickering on that example-page.
again: i'm very sorry for that mistake!

cheers
seth

Comment 15

[Jacob Kjome]

Boris, I just rechecked the testcase in bug 136549 with the latest Mozilla
Firebird and I see no flicker.  I resolved that as WFM.  Your random resolution
is probably correct here as well.  Mozilla is behaving quite nicely :-)

Jake