396490 - Calling element.blur() removes focus unconditionally, even when "element" doesn't have focus.

Status: RESOLVED FIXED

(Firefox :: Keyboard Navigation, defect)

Description

[Tom Brown]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.6) Gecko/20070725 Firefox/2.0.0.6
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.6) Gecko/20070725 Firefox/2.0.0.6

The element.blur() method seems to unconditionally cause focus to be lost. For example:

A.focus(); // Give element A focus.
B.blur(); // Ensure element B loses focus.

After running this, element "A" should retain focus, but no focus exists. This behavior is incorrect, as B.blur should only cause the blur to happen if element "B" has focus. Webkit and IE both allow this to work.

I have included as an attachment the HTML file I used to test this behavior.

Reproducible: Always

Steps to Reproduce:
1. (In javascript) focus element "A"
2. blur element "B"

Actual Results:  
Neither "B" nor "A" retain focus.

Expected Results:  
"A" should retain focus.

Comment 1

[Tom Brown]

Attachment: The HTML file used to test this functionality

Comment 2

[Neil Deakin]

This bug should have been fixed by 178324.