87156 - Mouse wheel does not work when a select list has focus but is not open

Status: NEW

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

Description

[Brian]

When a select list (e.g. any of Platform, Severity, OS, etc on bugzilla bug
entry page) is focused but not open/dropped down, mouse wheel stops working. 
Clicking elsewhere on the page allows scrolling again.  This seems very similar
to bug 62431, which is the analog for textareas.

Comment 1

[Chad Austin]

confirming

In my opinion, if a dropdown list box has focus, the mousewheel should select
items within it.

Comment 2

[Mike Pinkerton (not reading bugmail)]

--> bryner

Comment 3

[Jerome Lacoste]

Remark to "In my opinion, if a dropdown list box has focus, the mousewheel
should select items within it".
That's not what is done by IE 5

Comment 4

[John Morrison]

May God have mercy on us all. The 212 bug spam-o-rama is Now!

Comment 5

[Brian Ryner (not reading)]

yeah, the IE behavior on this is to change the selected item without opening the
list.

Comment 6

[Brian Ryner (not reading)]

Would be nice to have, but I don't think this is very commonly used
functionality.  -> 1.0.1

Comment 7

[Jesse Ruderman]

See also bug 127191, Wheel should scroll based on mouse position instead of focus.

Comment 8

[Michael Gabriel]

needs new target

Comment 9

[Masayuki Nakano [:masayuki] (he/him)(JST, +0900)(away until 10/14)]

I'm not sure what is best.

Gecko:
A select element has focus but dropdown list was closed, the wheel events scroll the ancestor scrollable frame.

Webkit (Google Chrome):
Same as Gecko.

Trident (IE8):
When mouse cursor is on the select element, the wheel events changes the selected items. Otherwise, a scrollable frame under mouse cursor is scrolled.

I think when the cursor is not on the select element, the current behavior is O.K.

Otherwise -- mouse cursor on focused select element --, it might be good thing that we change the selected item. However, it makes possibility that users select unexpected item. However, the behavior is similar the Windows' native behavior...

The negative effect by the change is very serious. I recommend that we mark this bug as WONTFIX.