188091 - Clicking Form Select Dropdown when it uses OnFocus doesn't drop down Options.

Status: RESOLVED WORKSFORME

(Core :: Layout: Form Controls, defect)

Description

[jsnod]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.3b) Gecko/20030106
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.3b) Gecko/20030106

If you use OnFocus with a form <select> element, when you click on the dropdown,
the OnFocus executes, but none of the options are displayed.  You must click the
dropdown a second time for the form select options to appear.  It's as if the
element stops working after executing the OnFocus.
Example:
<select name="thingie" style="background-color: Silver;"
onfocus="this.style.background='#ddd';" onblur="this.style.background='#ccc';">

Reproducible: Always

Steps to Reproduce:
1. Click a form select dropdown that uses onfocus="something".
2. Click it again, <options> will appear.

Actual Results:  
OnFocus executes (eg: background color is changed in my example), but the option
list is not displayed.  Click it a second time and the <options> display.

Expected Results:  
OnFocus executes (eg: background color is changed in my example), followed by a
the list of form select options dropping down (or up).



See forthcoming testcase.

Could this be related to a similar bug (185709) I reported a couple weeks ago?
http://bugzilla.mozilla.org/show_bug.cgi?id=185709

Comment 1

[jsnod]

Attachment: HTML Form Testcase

Comment 2

[Boris Zbarsky [:bzbarsky]]

this is a duplicate; the onfocus causes a reframe, which ends up confusing the
event system...

Comment 3

[jsnod]

Works For Me in Firefox 0.9, I'm assuming it works on the Trunk as well.  Closing.

Comment 4

[Boris Zbarsky [:bzbarsky]]

It doesn't work on trunk (tested with Linux trunk build 2004-07-09-07).  Reopening.

Comment 5

[Adam Donnison]

On Mozilla 1.7.3 on Linux this bug shows up. If you tab between fields to get to
a select field - the bug does not show up, but if you use the mouse and click on
the field you then require two more clicks to get the select list to drop down.
 This is using a similar onFocus handler that is changing the background colour.

Comment 6

[Per Ångström]

Confirming and nominating for blocking1.8b2. 

If it is a dupe, it needs to be duped to the right bug, and most importantly: fixed.

Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8b) Gecko/20050217

Comment 7

[Boris Zbarsky [:bzbarsky]]

The core issue causing this can't possibly be fixed for 1.8 at this point...
it's far too late in the cycle for focus-related changes.

And yes, this needs to be duped. Which is why it was _not_ confirmed.  Assigning
to confirmer to dupe.

Comment 8

[Per Ångström]

No, I don't wish to look blindly for a bug that may or may not be suitable for
duping. Hopefully, now that this one's confirmed, someone who knows will know.
Declining the assignment.

Comment 9

[Per Ångström]

blocking1.9a1 requested.

Comment 10

[jsnod]

The testcase above actually seems to be WORKSFORME with Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8) Gecko/20051112 Firefox/1.5

Comment 11

[Per Ångström]

Attachment: This testcase points out a related problem, with a :focus CSS rule

Yes, the test case works for me too, in Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9a1) Gecko/20051205 SeaMonkey/1.5a.

Anyway, I'm attaching a testcase that shows a similar problem, in the hope that somebody can point out the correct bug.

Comment 12

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

Both testcases seem to work now on Mac and Windows.