184533 - Focus on select/option can get stuck if hide/show list using style.display='none'

Status: NEW

(Core :: Layout: Form Controls, defect)

Description

[Rob Jones]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.2b) Gecko/20021016
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.2b) Gecko/20021016

When using dhtml to hide a select list once a choice is made the focus can get
stuck. I attach two testcases. The first uses onChange=autoHide to hide the div
containing the select when a selection is made. If the list is then reset (see
code) and then shown the focus is still there. The second testcase goes through
manual hiding and showing, calling the same code as the automatic hide but the
focus does not get stuck. Take a look at the testcases and if you want more
explanation let me know.


Reproducible: Always

Steps to Reproduce:
1. Follow instructions in testcases.

Comment 1

[Rob Jones]

Attachment: testcase one : focus sticks

Comment 2

[Rob Jones]

Attachment: testcase 2: manual hiding, no focus stick

Comment 3

[Boris Zbarsky [:bzbarsky]]

Confirming... jkeiser, this seems like something you would be interested in, no?

Comment 4

[Boris Zbarsky [:bzbarsky]]

This is a focus/ESM bug, really... not sure what the right component is for it.

Comment 5

[John Keiser (jkeiser)]

Actually, it doesn't look like focus is actually stuck--there's just a bit
somewhere that the select must be keeping around that indicates focus.  I don't
think this is ESM.  Layout: Form Controls I bet.

Comment 6

[Mats Palmgren (inactive)]

It's unclear to me what this bug is about.  If it's about showing a focus outline around
an empty option for "data:text/html,<select size=4></select>" when you click on it, then
this bug is invalid because that's intentional.