268539 - [EVENTTARG]-moz-opacity breaks mouse input for floated elements on the same line

Status: RESOLVED INVALID

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

Description

[Greg Wogan-Browne]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7.3) Gecko/20040926 Firefox/0.10.1
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7.3) Gecko/20040926 Firefox/0.10.1

An element floated on to the same line as a transparent element loses mouse
events as far as I can tell. I will attach a testcase.

(I haven't tried it using absolute positioning instead of floating, but assume
the same thing occurs.)

Reproducible: Always
Steps to Reproduce:
1. Open the testcase I am about to attach
2. Attempt to click on the floated link
Actual Results:  
Nothing (if you double click, the last word in the transparent text is selected).

Expected Results:  
Followed the link.

Possibly related to bug 234399?

Comment 1

[Greg Wogan-Browne]

Attachment: Testcase

Comment 2

[Boris Zbarsky [:bzbarsky]]

Confirming, but this is basically the same issue as bug 191830, in a slightly
different context.  The proposed solution for that bug doesn't really address
this one (since it would paint correctly, but the z-ordering calculation used
for events would still put the float below the div with a view).

Comment 3

[Daniel C]

Status -> NEW

Comment 4

[Martijn Wargers (dead)]

In fact, this is the same story as bug 275251, when removing the opacity, the link can be clicked upon.
See bug 191830, comment 34 and bug 191830, comment 35.
Resolving to INVALID.