371078 - Alt-Tab with opened drop-down loses focus but leaves CSS :focus applied

Status: RESOLVED DUPLICATE of bug 327102

(Core :: DOM: UI Events & Focus Handling, defect)

Description

[Timwi]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8.1.1) Gecko/20061204 Firefox/2.0.0.1
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8.1.1) Gecko/20061204 Firefox/2.0.0.1

See STR.


Reproducible: Always

Steps to Reproduce:
1. Open attached testcase.
2. Press Tab until the drop-down box is selected. It turns blue with a red border due to the :focus CSS rule.
3. Press Alt-Down. Drop-down opens.
4. Press Alt-Tab to switch to another application. Then switch back.

Actual Results:  
Content area now has focus, but the :focus CSS for the select is still applied.

(On a website with several form elements, all of which have :focus rules, it is now possible to have it appear as if two form elements have focus simultaneously.)

Expected Results:  
Ideally, drop-down should still have focus, but if not, then the :focus CSS rule should not be applied anymore.

Comment 1

[Timwi]

Attachment: Testcase

Comment 2

[Roman]

Reproduced on Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.1) Gecko/20061204 Firefox/2.0.0.1

Comment 4

[Timwi]

This is not a perfect duplicate of bug 327102 -- the latter doesn't cover the fact that pressing Alt-Tab moves keyboard focus from the dropped-down drop-down box to the content area. Should I report that separately, or is that covered elsewhere?