593682 - Keyboard navigation does not work after hiding active iframe (display:none)

Status: UNCONFIRMED

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

Description

[koshi]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; ru; rv:1.9.2) Gecko/20100115 Firefox/3.6
Build Identifier: Mozilla/5.0 (Windows NT 5.1; rv:2.0b5) Gecko/20100101 Firefox/4.0b5

Firefox does not react on keyboard events if an active iframe (which has a focus) become hidden (style.display = 'none') with help of JavaScript.



Reproducible: Always

Steps to Reproduce:
1. Create an iframe (using JavaScript).
2. Do the iframe active (click on it).
3. Somehow fire an event with callback which will hide iframe when it is active.
Actual Results:  
iframe is hidden.
No reaction on keyboard events (F5, Tab, ctrl+Tab, alt, etc)

Expected Results:  
iframe is hidden.
Keyboard input works like usually.
Keyboard input focus should be returned to iframe's parent document (probably).

Firefox 3.6 need one click on a page to restore keyboard input.
Firefox 4.0b5 need two clicks on a page to restore keyboard input.

Comment 1

[koshi]

Attachment: Demo html with javascript

Comment 2

[Nickolay_Ponomarev]

Related to bug 472980?