I have a menu in an nspopupbutton with several sections (there are
heading items) at various locations. I want to prevent these items
from being selectable, similarly to separator items. Can somebody
point me to a solution? The only alternative I see is to create a
custom subclass.
Danger! Apple Human Interface Police (tm) is everywhere!
There's a reason why unselectable things are generally disabled. We
have section header menu items these days, so I'd use that and let
Apple sort out how to display them. That way, users will *know* the
item isn't supposed to be selectable, and doesn't have to try out to
find out it won't do anything.
(If you're not aware why this may be a Bad Thing(tm), Steve Krug
wrote a nice book, "Don't make me think", that explains why you want
to make your UI this obvious to the user and stay out of their way.
In short, it lets users concentrate on the task at hand, like writing
their novel, instead of on the tool, i.e. the word processor you wrote)
