489980 - Anchor element with vertical paddings does not work on click (does not fire onClick) but applies :active styles

Status: RESOLVED INCOMPLETE

(Firefox :: General, defect)

Description

[u304681]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9.0.9) Gecko/2009040821 Firefox/3.0.9 (.NET CLR 3.5.30729)
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9.0.9) Gecko/2009040821 Firefox/3.0.9 (.NET CLR 3.5.30729)

Anchor elements that has asymmetric bottom and top paddings in normal state, and inverted paddings in active state, does not click on click e.g. fire click event, but applies :active styles.

Reproducible: Always

Steps to Reproduce:
1. Make an anchor with vertical paddings (say 5 top 10 bottom) and solid colour background (say gray). Make :active with inverted paddings.
2. Add click handler with a counter (to have a proof of clicking)
3. Click 1px away from the bottom edge of the anchor.
Actual Results:  
:active styles are applied, but click event does not fire.

Expected Results:  
Have both :active styles applied and click event fire.

The same behaviour is present with display: inline-block and height, though it's slightly harder to reproduce.

Comment 1

[u304681]

Attachment: Testcase

Comment 2

[u304681]

Comment on attachment 374456 [details]
Testcase

wrong attachment (sorry)

Comment 3

[u304681]

Attachment: Testcase

Added the right attachment.

Comment 4

[u304681]

Attachment: Testcase

Comment 5

[u304681]

I played a little bit more with this bug and I found that if the link is inline-block and there is a hidden SPAN in normal state, that turns into block element with some height, the space that the SPAN occupies is dead zone e.g. triggers :active but not click.

After that I played a little bit more and even though I can not yet tell why this is happening, I kinda figured out where the "dead zones" might be: if there is any dimensional change in the link in :active state, be it paddings, margins, line height, borders, showing hidden element etc. the inverse intersection between the original and the :active state (the dimensional changes) is the dead zone.

Can somebody, please, confirm this behaviour and the "dead zone" theory.

Comment 6

[Tyler Downer [He/Him]]

This is a mass search for bugs which are in the Firefox General component, are
UNCO, have not been changed for 500 days and have an unspecified version. 

Reporter, can you please update to Firefox 3.6.10 or later, create a fresh profile, http://support.mozilla.com/en-US/kb/managing+profiles, and test again. If you still see the issue, please update this bug. If the issue is gone, please set the status to RESOLVED > WORKSFORME.

Comment 7

[Tyler Downer [He/Him]]

No reply from reporter, INCOMPLETE. Please retest with Firefox 3.6.12 or later and a new profile (http://support.mozilla.com/kb/Managing+profiles). If you continue to see this issue with the newest firefox and a new profile, then please comment on this bug.