392863 - event.preventDefault() on <select> should prevent dropdown from appearing

Status: RESOLVED DUPLICATE of bug 1019630

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

Description

[Eugen Konkov]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; ru; rv:1.8.1.6) Gecko/20070725 Firefox/2.0.0.6
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; ru; rv:1.8.1.6) Gecko/20070725 Firefox/2.0.0.6

When I subscribe to 'mousedown' event for <select> tag
and call 'event.preventDefault' I do not want list of options to be opened in some cases


Reproducible: Always

Steps to Reproduce:
<script type="text/javascript">

function handler(event) {
 event.preventDefault();
 }

</script>

<select onmouseover='handler'><option>aaa</optioin><option>bbb</option></select>
Actual Results:  
list of options of <select> tag are opened when I call preventDefault from event handler

Expected Results:  
list of options of <select> tag must not be opened when I call preventDefault from event handler

<script type="text/javascript">

function handler(event) {
 event.preventDefault();
 }

</script>

<select onmouseover='handler'><option>aaa</optioin><option>bbb</option></select>

Comment 1

[Eugen Konkov]

Attachment: Testcase

Comment 2

[Martijn Wargers (dead)]

Attachment: correct testcase

I don't see how the first testcase would be able to work, but it seems to me this one should.

Comment 3

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

Or perhaps event handling is better.

Comment 4

[Tim (fmdeveloper)]

Is this the same issue as Bug 291082?

Comment 5

[Tim (fmdeveloper)]

Re-reading makes me think this isn't a dupe of Bug 291082.

Confirmed the issue still exists in Mozilla/5.0 (Windows NT 5.1; rv:9.0a1) Gecko/20110903 Firefox/9.0a1 ID:20110903030832

Comment 6

[e178699]

Still exists.

Mozilla/5.0 (Windows NT 6.1; WOW64; rv:27.0) Gecko/20100101 Firefox/27.0

Comment 7

[Suzanne Tang]

The bug is still here. 
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0

Comment 8

[Ming-Chou Shih [:stone]]

We got several bugs which all about preventDefault on key/mouse events don't stop the default action of a select element. The behavior was the same as other browsers at that time. Now looks like all browsers stop default behavior except Firefox. We probably should collect the behavior of all browsers and align the behavior for compatibility with other browsers. Let's keep Bug 1019630 open (to cover the cases of mouse and keyboard events) and close the others.