221109 - Crash if making about-to-be-focused form element invisible [@HandleEventInternal]

Status: RESOLVED DUPLICATE of bug 212338

(Core :: Layout: Form Controls, defect)

Description

[Joe Hutchinson]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.6a) Gecko/20031002
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.6a) Gecko/20031002

When tabbing to a form control, if that control becomes invisible due to the
"onblur" of the previously focused control, Mozilla crashes.

Tested on Windows/Linux 1.4 release, and build 2003100204.

Reproducible: Always

Steps to Reproduce:
1. Load testcase
2. Focus the first input
3. Press tab

Actual Results:  
Mozilla crashes

Expected Results:  
Not crashed.  Focus would ideally go to the next visible control, otherwise
focus should be lost until hitting tab again (which should go to the next
visible control as it does in IE).

The company I work for is developing an application which exhibits this problem.

Comment 1

[Joe Hutchinson]

Attachment: Test case

Comment 2

[Mats Palmgren (inactive)]

Confirming bug, 2003-10-02-05 trunk Linux.

Comment 3

[Mats Palmgren (inactive)]

Attachment: Crash stack on Linux

Comment 4

[Mats Palmgren (inactive)]

*** This bug has been marked as a duplicate of 212338 ***