Re: Notification of shadowing by gtk_grab_add()

[Havoc Pennington <hp redhat com>]

Owen Taylor <otaylor redhat com> writes: 
> The idea is that we introduce the concept of the "event state"
> for a widget. It can be one of:
> 
>  GTK_EVENT_STATE_NORMAL     - the widget receives events
>  GTK_EVENT_STATE_SHADOWED   - the widget does not receive events because
>                               it is shadowed by a gtk_grab_add()
>  GTK_EVENT_STATE_INSENSTIVE - the widget does not receive events because
>                               it is insensitive.
> 

One issue is the possibility of rendering STATE_SHADOWED widgets as
GTK_STATE_INSENSITIVE, i.e. visually desensitize all shadowed
windows. I thought that was sort of a nice usability thing when jrb
and I did it for rp3. Usability experts may disagree, since I haven't
seen other OS's doing this. (Though I sure think it's nicer than
Windows, which beeps if you click on a grab-shadowed window.)

Maybe another way to achieve the intended effect would be for the WM
to refuse to focus transient parents of dialogs with the modal hint
set, so you would always get the inactive/unfocused appearance for
shadowed windows.

Havoc