369276 - Text moving when selecting it

Status: RESOLVED WORKSFORME

(Core :: Graphics, defect)

Description

[Jasper Hafkenscheid]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a2pre) Gecko/20070204 Minefield/3.0a2pre
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a2pre) Gecko/20070204 Minefield/3.0a2pre

When you start selecting the text (A I often do when I read it), the text sometimes moves one pixel. I think I have also seen this on a Linux computer running Firefox.

Reproducible: Always

Steps to Reproduce:
1. Go to a tweakers.net news article
2. Start selecting the text of the article (horizontaly)
Actual Results:  
The text on the current line moves 1 pixel in left or right direction

Expected Results:  
The text doesn't move, it just gets selected

Comment 1

[Ria Klaassen (not reading all bugmail)]

I think this is a regression of Bug 333659. Tried some builds before and after and the checkin for this bug was within that time span.
I don't see a similar bug so confirming.

Comment 2

[Ria Klaassen (not reading all bugmail)]

Yes, it is.

Comment 4

[Robert O'Callahan (:roc) (email my personal email if necessary)]

This works for me on Linux. However, I think it is related to justification; can you try a simple testcase like
<div style="text-align:justify;">Hello kitty Hello kitty Hello kitty Hello kitty Hello kitty Hello kitty Hello kitty Hello kitty Hello kitty Hello kitty Hello kitty Hello kitty Hello kitty Hello kitty Hello kitty Hello kitty</div>
?

Comment 5

[Jasper Hafkenscheid]

Robert, that is correct. It moves, but only when I narrow my screen (and a linefeed is inserted).

Comment 6

[Ria Klaassen (not reading all bugmail)]

Attachment: Test case from comment 4

Comment 9

[Ben Fowler]

Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.9a3pre) Gecko/20070218 Minefield/3.0a3pre

(In reply to comment #6)
> Created an attachment (id=254284) [details]
> Test case from comment 4

I see the problem when using this testcase

Comment 10

[Jonathan Haas]

I don't know if it's related, but there are some similar selection problems with some special unicode chars. Try to select some text for example on the following page:

data:text/html,∨∧∨∧∨∧blablablablablablablabla

Comment 11

[Serge Gautherie (:sgautherie)]

[Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9a3pre) Gecko/20070228 SeaMonkey/1.5a] (nightly) (W2Ksp4)

Confirming with SeaMonkey.

Comment 12

[Jonathan Haas]

This WFM now using 
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a3pre) Gecko/20070305 Minefield/3.0a3pre

Probably fixed by bug 370588

Comment 13

[Dave Townsend [:mossop]]

Looks good here too

Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-US; rv:1.9a3pre) Gecko/20070305 Minefield/3.0a3pre ID:2007030504 [cairo]

Comment 14

[Masayuki Nakano [:masayuki] (he/him)(JST, +0900)]

I can still reproduce this bug, I think that we need to enable the new text frame for this bug.

Comment 15

[Jasper Hafkenscheid]

Problem solved here with the latest build.

Comment 16

[Serge Gautherie (:sgautherie)]

[Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9a3pre) Gecko/20070305 SeaMonkey/1.5a] (nightly) (W2Ksp4)

Bug still there, per testcase:
Not happening if displayed on one line;
but happening if displayed on two lines, after reducing the window width.

Comment 17

[Ria Klaassen (not reading all bugmail)]

Not entirely fixed. When you go to the URL and select the line "gelanceerd zal worden. Het ziet er daarom naar uit dat Mozilla" you see the word "er" move a tiny bit but not the rest. I can't reproduce this with the testcase however.

Comment 18

[Ria Klaassen (not reading all bugmail)]

Attachment: zipped page

Page where the bug is visible. When you select the space between "worden." and "Het" the word "er" starts to move.

Comment 19

[Serge Gautherie (:sgautherie)]

(In reply to comment #16)
> 
> Not happening if displayed on one line;
> but happening if displayed on two lines, after reducing the window width.

(This is what comment 5 said :-|)

***

[Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9a5pre) Gecko/20070504 SeaMonkey/1.5a] (nightly) (W2Ksp4)

This bug seems to be WorksForMe now,
per testcase (comment 6) and per URL page (comment 17);
and I think I haven't noticed it for sometime in daily use.

Comment 20

[Ria Klaassen (not reading all bugmail)]

This is WFM indeed now. Fixed by bug 372631 (testcase from comment 18). As I don't know what bug fixed it in the first place, resolving WORKSFORME.