363728 - overflow: auto overdraws an absolute-positioned DIV

Status: RESOLVED WORKSFORME

(Core :: Layout, defect)

Description

[Patrick Geiller]

User-Agent:       Mozilla/5.0 (Macintosh; U; PPC Mac OS X; en) AppleWebKit/418.9.1 (KHTML, like Gecko) Safari/419.3
Build Identifier: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.8.1) Gecko/20061010 Firefox/2.0

I have 2 divs on a page, each taking 50% height (set via Javascript). Each div displays more information than 50% page height and has overflow: auto enabled. The top DIV has a control acting like a combo box, using another DIV with position: absolute. This combo-DIV is overdrawn by the bottom DIV.

I get the same results on Mac, Linux, Windows.

Reproducible: Always

Comment 1

[Patrick Geiller]

Attachment: Test case

Comment 2

[philippe (part-time)]

Based on the test case, this is working correctly in my trunk build.

Comment 3

[Pavel Yaschenko]

We have the same problem with div that uses overflow:hidden and <textarea/>
Please see out test case.

Comment 4

[Pavel Yaschenko]

Attachment: Another Test case

http://jira.jboss.com/jira/browse/RF-1245?page=all

Mozilla/5.0 (Windows; U; Windows NT 5.1; ru; rv:1.8.1.9) Gecko/20071025 Firefox/2.0.0.9

Comment 5

[Daniel.S]

Buggy in Fx2, but works in Firefox 3 and higher.

Comment 6

[Daniel.S]

Attachment: reftests [Checkin: Comment 8]

In test 1 we look wether the word FAIL shines through the absPos element. in the reference the word simply isn't there.

Test 2 looks wether the absPos element covers both elements below. This doesn't happen in Fx2 only if overflow is set.

Comment 7

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

Comment on attachment 361052 [details] [diff] [review]
reftests
[Checkin: Comment 8]

r+sr=dbaron

Comment 8

[Serge Gautherie (:sgautherie)]

Comment on attachment 361052 [details] [diff] [review]
reftests
[Checkin: Comment 8]


http://hg.mozilla.org/mozilla-central/rev/908e140c3606