14935 - [CBX]Dropped-down listbox doesn't intercept mousewheel notifications

Status: VERIFIED FIXED

(Core :: Layout: Form Controls, defect, P3)

Description

[Yossi Oren]

WIN2K
While the "OS" dropdown is active, I roll the mousewheel.
The window scrolls, instead of the dropdown.
The mousewheel just spams the window with WM_VSCROLL messages with SB_LINEDOWN,
so my bet is that the open dropdown window doesn't wait for those messages.

Comment 1

[Claudius Gayle]

changing component and assigning to trudelle for triage

Comment 2

[Peter Trudelle]

That's an HTML forms control, not an XPToolkit widget. reassigning

Comment 3

[karnaze (gone)]

Reassigning to Rod.

Comment 4

[rods (gone)]

changed to later

Comment 5

[Blake Ross]

reopening and marking Future...

Comment 6

[Asa Dotzler [:asa]]

*** Bug 55512 has been marked as a duplicate of this bug. ***

Comment 7

[Brian Ryner (not reading)]

*** Bug 59830 has been marked as a duplicate of this bug. ***

Comment 8

[Scott Gifford (old account)]

I see this same bug on PC/Linux 2000111021 (see bug 59830).  Could somebody with
appropriate permissions change the Platform/OS to All/All?

Comment 9

[Jonas Sicking (:sicking) No longer reading bugmail consistently]

When this is implemented, please make it so that you have to hover the dropdown 
to make it react to the mousewheel.
In other words the dropdown should have focus *and* be hovered to scroll. 

Also there should be different behavior when the select is dropped down and 
when it's not. If it's dropped down it should only scroll through the list of 
options, not select anything or trigger any onChange events.
If however it's collapsed (but has focus) scrolling the mousewheel should move 
the selection *one* option at a time. It would be really cool if the onChange 
event would trigger after a small timedelay, really useful for those 
autosubmitting dropdowns...

Should I file anything of this as a seperate bug ?

Comment 10

[Jonas Sicking (:sicking) No longer reading bugmail consistently]

oh, btw, this is *not* the way IE does it. This is better :)

Comment 11

[Brian Ryner (not reading)]

Oops, I should have marked this one Fixed with my mousewheel checkins Friday
night.  It works as you have suggested, except that no scrolling is done when
the dropdown has focus but is rolled up (I suspect this would be hard, but I'm
not sure).

Comment 12

[jerone]

Verified Build 2001071607 trunk os:win95