285322 - Columns of text in the articles are displayed one over other.

Status: RESOLVED DUPLICATE of bug 282754

(Core :: Layout, defect)

Description

[vtuncch]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8b) Gecko/20050207
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8b) Gecko/20050207

All nightly builds starting from February 08 have the problem.
The identified build and earlier ones do not show the wrong behaviour.
The problem is:
The title page of http://inopressa.ru is displayed correctly. The articles are
supposed to have text in three columns, but the columns of text are displayed
one over other, not separately.

Reproducible: Always

Steps to Reproduce:
1. Go to http://inopressa.ru
2. Click any abstract to get the full text of the article.
3.

Actual Results:  
1. The title page of http://inopressa.ru is displayed correctly.
2. The columns of text are displayed one over other, not separately.

Expected Results:  
Display the text in three columns. Use the identified build (20050207) to see
the correct result.

Comment 1

[Hermann Schwab]

Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.8b2) Gecko/20050308

http://inopressa.ru/jpost/2005/03/08/11:27:14/Goussinsky

the overlapping columns are in three divs showing zero width in DOMI

<div id="parentDiv" style="overflow: hidden; width: 500px; position: relative;
margin-bottom: 0px; margin-top: 0px; padding-bottom: 0px; padding-top: 0px;
line-height: 17px; font-size: 12px; font-family: Arial; font-weight: normal;
height: 255px; display: block;">


<div id="onecol" style="top: 0px; position: absolute; display: inline; left: 0%;
width: 30%;"> ... </div>
<div id="twocol" style="top: -255px; position: absolute; display: inline; left:
33%; width: 30%;"> ... </div>
<div id="treecol" style="top: -510px; position: absolute; display: inline; left:
66%; width: 30%;"> ... </div>

</div>

Comment 2

[Hermann Schwab]

Attachment: reduced testcase

as described in comment 1

Comment 3

[Hermann Schwab]

Attachment: minimal testcase

Comment 4

[Hermann Schwab]

confirming Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.8b2) Gecko/20050308

regressed between BuildID 2005020706 working, 2005020806 failing 

checkins:
http://bonsai.mozilla.org/cvsquery.cgi?treeid=default&module=SeaMonkeyAll&branch=HEAD&branchtype=match&dir=&file=&filetype=match&who=&whotype=match&sortby=Date&hours=2&date=explicit&mindate=2005-02-07+04%3A00&maxdate=2005-02-08+07%3A00&cvsroot=%2Fcvsroot

maybe Bug 277420. Use ConstructBlock when creating scrolled and absolutely
positioned blocks. Removes copied code and makes columns work in such situations.


bug can be seen here http://inopressa.ru/jpost/2005/03/08/11:27:14/Goussinsky
and in the attached testcases. 


 

Comment 5

[Hermann Schwab]

Attachment: testcase

testcase with english text, containing div defines height and total width,
contained divs are containing the same text, with different negative offsets,
so 1st div is first column showing 1st part of text
2nd has negativ offset skipping the part of text displayed by the first, and is
positioned to the right, so it should display part of the text following the
first part. Accordingly 3rd div should skip the parts shown and shoiw the next
part of the text. In the real page there is JS to scroll through longer texts.
I´ve put a black dashed border around the containing div, and coloured borders
around the contained divs.
I´ll attach screenshots from before and after the regression.

Comment 6

[Hermann Schwab]

Attachment: screenshot 2005020706 before regression

showing the testcase as seen with buildID 2005020706

Comment 7

[Hermann Schwab]

Attachment: screenshot 2005020806 after regression

showing the testcase as seen with buildID 2005020806

Comment 8

[Hermann Schwab]

Attachment: testcase loaded from local disk

I just noticed that the testcase downloaded from bugzilla rendered differently,
so I´ll attach	screenshot.  
Remote I´ve only checked the original URL working with 20050207, and failing
20050208.
I checked the working of this testcase only locally, and the failing also
remote.

Maybe bug 285309 is related.

Comment 9

[Hermann Schwab]

Boris, this bug seems to be related to the fix of 
Bug 277420 Setting overflow disables column layout [columns]
I suspect it is working now as intended, but I´m always eager looking at bugs
declared 'ìnvalid' to improve my knowledge.

See comment 4 for regression date and direct link to the russian language page
showing the regression. 

see comment 5 for my own testcase from what I understand could be the problem.
Attachments include testcase and screenshots.

Comment 10

[Boris Zbarsky [:bzbarsky]]

This is probably a duplicate of bug 282754.  Marking dependent for now.

Comment 11

[Boris Zbarsky [:bzbarsky]]

Fixed by patch in bug 282754

*** This bug has been marked as a duplicate of 282754 ***