1284648 - onclick fires onmouseout event uncalled

Status: RESOLVED DUPLICATE of bug 1173716

(Core :: DOM: Events, defect)

Description

[Joel Ramirez]

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0
Build ID: 20160623154057

Steps to reproduce:

When using onclick and onmouseout on the same element onmouseout will be fired when a click is done:

Fiddle
http://jsfiddle.net/238Nz/8/


Actual results:

onmouseout event will trigger uncalled.


Expected results:

no onmouseout trigger when only a click has been done.

Comment 1

[Olli Pettay [:smaug][[e-mail]]]

This is about us spinning event loop while showing alert().  Dup of an old bug.

Comment 2

[Andrew Overholt [:overholt]]

Thanks. I'll go with bug 1173716 but that itself has DUPEME ...

Comment 3

[Joel Ramirez]

(In reply to Andrew Overholt [:overholt] from comment #2)
> Thanks. I'll go with bug 1173716 but that itself has DUPEME ...
> 
> *** This bug has been marked as a duplicate of bug 1173716 ***

Hello, Andrew.

Are you sure this a duplicate of bug 1173716?
Because I've read it and it strikes no resemblance at all.

The bug I posted here is about the mishandling of dom event onmouseout.
Javascript it's a secondary tool to check the behavior of this event.

Can you please check this one more time?
Thanks.

Comment 4

[Andrew Overholt [:overholt]]

(In reply to Joel Ramirez from comment #3)
> Can you please check this one more time?

Hi Joel,

I was just going based on comment 1:

(In reply to Olli Pettay [:smaug] from comment #1)
> This is about us spinning event loop while showing alert().  Dup of an old
> bug.

Maybe Olli can enlighten us?

Comment 5

[Olli Pettay [:smaug][[e-mail]]]

if alert wasn't spinning the event loop on which the page runs, it shouldn't get the event before the alert has been closed.
Another option is to move DelayedMouseEvent handling from PresShell to EventDispatcher...
but the whole reason for DelayedMouseEvent is alert() and sync XHR which spin event loop.