490377 - Incorrectly positioned mouseover event triggered on tooltip close

Status: RESOLVED DUPLICATE of bug 443178

(Core :: Widget: Cocoa, defect)

Description

[Ian McKellar]

User-Agent:       Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.0.9) Gecko/2009040820 Firefox/3.0.9
Build Identifier: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.0.9) Gecko/2009040820 Firefox/3.0.9

When a tooltip disappears a mouseover event is generated in the owning document (even if the mouse was not over the tooltip window). The location of the event is incorrect. It's often to the left and above the actual mouse location. The relative position appears to be different with different window sizes. This occurs on MacOS X in the most recent Firefox 3.0.x and the most recent Firefox 3.6a nightly.

Reproducible: Always

Steps to Reproduce:
I will attach a self-contained example to demonstrate this bug momentarily.

Comment 1

[Ian McKellar]

Attachment: Testcase

This testcase shows a trail of mouseover events. If you rest your mouse over a square till the tooltip shows up and then move it to make the tooltip disappear, you'll see an incorrect square turn red (ie: receive the event).

If you don't see this at first try resizing your window. As far as I can tell about 900-1000 px wide is a good size to see it.

Comment 2

[Timothy Nikkel (:tnikkel)]

I could not reproduce this bug using the testcase on Windows and Linux using 3.0 and 3.6 nightlies.

Comment 3

[Ian McKellar]

Yeah, I tried on Linux and couldn't repro either. It's not surprising since both the event and menupopup code are heavily platform-specific. I wonder if there's some keyword I should use to get the mac guys' attention...

Comment 4

[Brent Bloxam]

I can confirm this issue in Firefox 3.0.10 on Mac OS X 10.5.6

Comment 5

[Steven Michaud [:smichaud] (Retired)]

I can also reproduce this.  It looks like a Cocoa widgets bug.

Comment 6

[Timothy Nikkel (:tnikkel)]

This sounds a lot like bug 443178. Is this fixed now?

Comment 7

[philippe (part-time)]

As far as I can tell, the attached test case now works correctly

Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.3a1pre) Gecko/20090819 Minefield/3.7a1pre