363697 - Implement action to programmatically show menu for textfields and buttons

Status: RESOLVED INCOMPLETE

(Core :: Disability Access APIs, defect)

Description

[Håkan Waara]

I know there was talk about implementing a way to programmatically show the menu of buttons (ROLE_COMBOBOX), but I'm having trouble finding the relevant bugs, so filing this for easier tracking.

- mozPopupbuttonAccessible (which maps to ROLE_COMBOBOX) needs this for its ShowMenu action to work.

- autocomplete widgets and other textfields with a popup would also benefit from an action to programmatically show the menu.

Comment 1

[Ginn Chen]

For user, the shortcut for Windows and Linux is shift+F10, for Mac OS X is ctrl+space.

Current code for showing context menu is,
Windows:
http://lxr.mozilla.org/seamonkey/source/widget/src/windows/nsWindow.cpp#4741
GTK2:
http://lxr.mozilla.org/seamonkey/source/widget/src/gtk2/nsWindow.cpp#2145
Mac:
http://lxr.mozilla.org/seamonkey/source/widget/src/mac/nsMacEventHandler.cpp#1136

Comment 2

[Håkan Waara]

(In reply to comment #1)

Something like that, but it needs to be accessible via nsIAccessible, as an action.

Comment 3

[alexander :surkov (:asurkov)]

I guess every element of COMBOBOX role should have child acessible element of PUSHBUTTON role, that element has nsIAccessible::DoAction() method which shows popup. What do you about?

Comment 4

[Håkan Waara]

(In reply to comment #3)
> I guess every element of COMBOBOX role should have child acessible element of
> PUSHBUTTON role, that element has nsIAccessible::DoAction() method which shows
> popup. What do you about?

What about other buttons with a popup? What if COMBOBOX's internal structure changes? What about custom widgets that use this role (possibly via W3C roles, if possible)?

The point is that it is really fragile to depend on how a specific role's internal structure looks.

Comment 5

[alexander :surkov (:asurkov)]

(In reply to comment #4)

> The point is that it is really fragile to depend on how a specific role's
> internal structure looks.
> 

(In reply to comment #2)
> (In reply to comment #1)
> 
> Something like that, but it needs to be accessible via nsIAccessible, as an
> action.
> 

Then at least it shouldn't be in nsIAccessible. Probably new interface if you wish.

Comment 6

[David Bolter [:davidb] (NeedInfo me for attention)]

Mass un-assigning bugs assigned to Aaron.

Comment 7

[David Bolter [:davidb] (NeedInfo me for attention)]

AUTO-CLOSED. This bug untouched for over 2000 days. Please reopen if you can confirm the bug and help it progress.