209649 - Focus rings on checkboxes and radio buttons are erased wrongly

Status: RESOLVED DUPLICATE of bug 153572

(Camino Graveyard :: HTML Form Controls, defect, P3)

Description

[Ben Harris]

User-Agent:       Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.5a) Gecko/20030616 Camino/0.7+
Build Identifier: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.5a) Gecko/20030616 Camino/0.7+

It looks like the too little of the page is invalidated when redrawing focus
rings as a result of moving the focus in a form, so that traces of the old focus
ring can get left behind in some circumstances.

Reproducible: Always

Steps to Reproduce:
1. Go to a page with a checkbox (e.g. the one above)
2. Click on the checkbox
3. Resize the browser window to force a complete redraw
4. Click on another form control or in the page text

Actual Results:  
Small traces of blue focus ring are left around the checkbox.

Expected Results:  
There should be no focus ring fragments left.

Comment 1

[Ben Harris]

Attachment: Screenshot of checkbox focus-ring fragments

Created by following my "how to reproduce" instructions.  Note faint blue line
a few pixels away from the edge of the checkbox.

Comment 2

[Ben Harris]

Attachment: Screenshot of radio-button focus-ring fragments

For completeness, here's the same problem demonstrated on a radio button.

Comment 3

[Derek Schrock]

I don't think this is a bug.

The blue outline it there to tell you the object is selected.

Reslution: Invalid?

Comment 4

[Brian Ryner (not reading)]

no, not invalid.

Comment 5

[Ludovic Hirlimann [:Usul]]

Still present in 2003082402

Comment 6

[Jasper]

I'm going to confrim this using the 20030827 NB. It's very subtle but non the
less present.

Comment 7

[Ludovic Hirlimann [:Usul]]

confirming based on #6 and #5

Comment 8

[Taral]

No resize required.

1. Open a document.
2. Click a form element.
3. Click empty space in the document.

Comment 9

[Taral]

Also note that clicking another checkbox/radio causes proper erasure in most cases.

Possibly related bug:

1. Click checkbox.
2. Click radio button.
3. Click checkbox.

Note extra glitch at top right where checkmark was.

Comment 10

[Smokey Ardisson (offline for a while; not following bugs - do not email)]

Some of the ring is never drawn correctly to begin with, and you can see some bad erasure ("leftovers") without resizing.  Resizing gets you even more ;)

Comment 11

[Håkan Waara]

This is probably more of a Core bug, even if they haven't switched to native form controls (yet).

Comment 12

[Stuart Morgan]

Fixed on trunk.