311150 - Focus Ring adds to ViewPort size

Status: RESOLVED DUPLICATE of bug 286368

(Core :: Layout, defect)

Description

[Ulrik Sverdrup]

User-Agent:       Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.9a1) Gecko/20050915 Camino/1.0+
Build Identifier: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.9a1) Gecko/20050915 Camino/1.0+

When a focus ring is added to an element, it can be done so that the width of
the current page goes from 100% to more than 100%. The problem is then that this
makes (for example) horizontal scrollbars show/hide when the foucs ring is
shown/hidden.

Reproducible: Always

Steps to Reproduce:
1. Go to a site that has a link with 0px margin to the edge of the window. For
example, growl.info as above
2. Click the link (image links work best) so that the focus ring draws

Actual Results:  
This adds to the page width, and horizontal scrollbars are shown

Expected Results:  
Scrollbars shouldn't display just because the focus ring is drawn

Tested on Firefox 1.5b1, and Camino from today's trunk

Comment 1

[Ulrik Sverdrup]

*** This bug has been marked as a duplicate of 286368 ***

Comment 2

[Gérard Talbot]

This happens with Seamonkey 1.1a rv: 1.9a1 build 2005100405 under XP Pro SP2 and
most likely in other os-es.