292146 - mouseout fires for element that has been removed from document

Status: RESOLVED FIXED

(Core :: DOM: UI Events & Focus Handling, defect, P2)

Description

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

Since 1.7 (and probably from bug 284664), we've started firing mouseout on an
element that was removed from the document while the mouse was over it *after*
the element is removed from the document.  Firing mouseout on the element when
it is no longer in the document seems wrong.  I think we should either:

 1. (preferable, I think, since it's compatible with 1.7 and IE/Windows) not
fire the mouseout at all, or

 2. fire the mouseout before the element is removed from the document.

This has been causing me some problems with my patch on bug 241518.

Roc, any thoughts?  Was this change intentional?


Steps to reproduce:
 1. load attachment 182012 [details]
 2. move the mouse slowly over the yellow box

Expected results:
 After one second, an alert showing:
   mouseover
   starting remove
   ending remove

Actual results:
 After one second, an alert showing:
   mouseover
   starting remove
   ending remove
   mouseout

Comment 1

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

Attachment: patch

Comment 2

[Robert O'Callahan (:roc) (email my personal email if necessary)]

Comment on attachment 182017 [details] [diff] [review]
patch

it was not intentional. Just a byproduct of making mouseover use content
instead of frames (which is still the right thing!)

Comment 3

[Asa Dotzler [:asa]]

Comment on attachment 182017 [details] [diff] [review]
patch

a=asa

Comment 4

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

Fix checked in to trunk, 2005-04-28 13:47 -0700.