309275 - onmouseout gets triggered when the mousewheel is moved even if onmouseout would normally not get triggered

Status: RESOLVED WORKSFORME

(Core :: DOM: Events, defect)

Description

[Devega]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.10) Gecko/20050716 Firefox/1.0.6
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.10) Gecko/20050716 Firefox/1.0.6

I made a website (currently not online and can't upload it either) which had an
onmouseover background-color change. The onmouseout trigger was set to reset the
background back to its original color. When moving my mouse over it, the
background changes color normally. When I use my mousewheel now (and it doesn't
matter whether the page has a scrollbar or not) the onmouseout event triggers
and resets the background color.

I did this with table row (tr) backgrounds.

Reproducible: Always

Steps to Reproduce:
1. Move your mouse over the tr with onmouseover bgcolor change on it, where the
tr also has an onmouseout to change the bgcolor to something else.
2. Go mad with your mouse-wheel.

Actual Results:  
The background got changed to the color in the onmouseout, while the mouse was
in fact still over the table row so there was no reason for the onmouseout to
trigger.

Expected Results:  
ignored the onmouseout unless it actually moved off the table row with the
onmouse out set on it.

Comment 1

[Martijn Wargers (dead)]

Please attach a testcase or give an url that shows the bug.
That being said, I don't think this is a bug. Onmouseover and onmouseout can be
triggered without moving the mouse, mousemove, on the other hand, not.

Comment 2

[Mikko Virkkilä]

Attachment: Testcase

I've also stumbled across this bug -> attached testcase.

Using: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.10) Gecko/20050913
Firefox/1.0.6 (Ubuntu package 1.0.6)

Steps to reproduce:
1. Put the cursor above the blue box -> turns red.
2. Scroll up or down -> turns blue while the cursor is still on top of the box

Should happen:
Since the cursor never leaves the box, the onmouseout event shouldn't be fired.

Comment 3

[Martijn Wargers (dead)]

Please test with a nightly trunk build to see it this still happens:
http://ftp.scarlet.be/pub/mozilla.org/firefox/nightly/latest-trunk/

Comment 4

[Mikko Virkkilä]

Not able to reproduce with version downloaded from 
http://ftp.scarlet.be/pub/mozilla.org/firefox/nightly/latest-trunk/

"Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9a1) Gecko/20050920 Firefox/1.6a1"

WFM

Comment 5

[Boris Zbarsky [:bzbarsky]]

Worksforme on trunk on WinXP.