743618 - onchange is not fired when container has "overflow" altered by ":hover" rule

Status: RESOLVED FIXED

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

Description

[gmice]

Attachment: bug.html

User Agent: Mozilla/5.0 (Windows NT 6.1; rv:11.0) Gecko/20100101 Firefox/11.0
Build ID: 20120312181643

Steps to reproduce:

I have an <input> element wrapped by a <div> element. There're 2 css rules applied to the <div> element:
div { overflow: hidden; }
div:hover { overflow: visible; }

Steps:
1. Click the <input> element, keeping mouse cursor hover on input
2. Type something, do not enter
3. Move mouse cursor to anywhere blank, click

onBlur event from <input> element is fired but onChange event is missing.

Another interesting behaviour is, after clicking the <input> element, move out mouse cursor while leaving input cursor in <input>, type something and then click outside. Both onBlur and onChange event are fired.


Actual results:

onChange event is missing.


Expected results:

onChange event is fired.

Comment 1

[Alice0775 White]

Regression window:
Last Good : 05-Jan-2007 0856
First Bad : 06-Jan-2007 0533
Pushlog:
http://bonsai.mozilla.org/cvsquery.cgi?treeid=default&module=all&branch=HEAD&branchtype=match&dir=&file=&filetype=match&who=&whotype=match&sortby=Date&hours=2&date=explicit&mindate=2007-01-05+06%3A00%3A00&maxdate=2007-01-06+05%3A33%3A00&cvsroot=%2Fcvsroot

Suspected: Bug 265047

Comment 2

[(no longer active)]

This happens because the change event is fired by layout, so reframing with careful timing will cause it not to be fired.  I think the right fix here is to make the event be dispatched by content instead of layout.  Mounir, are you interested in doing that?  :-)

Comment 3

[Mounir Lamouri (:mounir)]

Bug 722599 is about making the change event fired by the content. There is someone currently working on that. There was no activity in the bug recently but he told me on IRC he will be back working on it.