974837 - Strange behaviour when clicking on a link in multi-column layout (column-* CSS)

Status: RESOLVED WORKSFORME

(Core :: Layout: Columns, defect, P4)

Description

[wsh]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:27.0) Gecko/20100101 Firefox/27.0 Iceweasel/27.0 (Beta/Release)
Build ID: 20140208001425

Steps to reproduce:

1. Go to http://rtime.felk.cvut.cz/~sojka/firefox-columns-bug/
2. Click on any link in the second or third column

Note: The above URL points to a snapshot of a page from another site. Therefore, links point to non-existing documents.


Actual results:

First item from the second column moved to the first column. Link was not followed.


Expected results:

Layout should stay the same and the link is followed.

Comment 1

[Alice0775 White]

multi-column layout list is jumping up and down when focus-ring appears

Alternate Steps to reproduce:
1. Go to http://rtime.felk.cvut.cz/~sojka/firefox-columns-bug/
2. Crick Empty Area
3. Press Tab key

Actual Results:
List is jumping up and down when focus-ring appears

Regression window
Good:
http://hg.mozilla.org/integration/mozilla-inbound/rev/f9b341d6babd
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/17.0 Firefox/17.0 ID:20120720112708
Bad:
http://hg.mozilla.org/integration/mozilla-inbound/rev/8ad2c23374bc
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/17.0 Firefox/17.0 ID:20120720113118
Pushlog:
http://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=f9b341d6babd&tochange=8ad2c23374bc

Suspected: Bug 616722

Comment 2

[Alice0775 White]

Alternate Steps to reproduce:
1. Go to http://rtime.felk.cvut.cz/~sojka/firefox-columns-bug/
2. Crick Empty Area
3. Press Tab key
4. Repeat Step 2 and 3.

Comment 3

[Alice0775 White]

Attachment: reduced html

Comment 4

[Mats Palmgren (inactive)]

Thanks for the testcase!  (I think this might be the column layout bug I was alluding to
in bug 936652.)

Comment 5

[Gordon P. Hemsley [:GPHemsley]]

(In reply to Alice0775 White from comment #3)
> Created attachment 8378960 [details]
> reduced html

I'm unable to reproduce the bug using this testcase. (I have a large screen, which might make the spacing different.)

Comment 6

[wsh]

(In reply to Gordon P. Hemsley [:GPHemsley] from comment #5)
> (In reply to Alice0775 White from comment #3)
> > Created attachment 8378960 [details]
> > reduced html
> 
> I'm unable to reproduce the bug using this testcase. (I have a large screen,
> which might make the spacing different.)

I can reproduce it - even on 1920x1200.

Comment 7

[Ting-Yu Lin [:TYLin] (PDT, UTC-7)]

I load http://rtime.felk.cvut.cz/~sojka/firefox-columns-bug/ on Nightly today, but I cannot reproduce.

Mozregression gives only this range because some builds are missing.
https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=09f4968d5f42&tochange=986e840a2979

Comment 9

[wsh]

Agreed. I cannot reproduce it even on 68.0.2 (64-bit). Thanks!