Re: how to validate toolbar with different target?
Re: how to validate toolbar with different target?
- Subject: Re: how to validate toolbar with different target?
- From: "I. Savant" <email@hidden>
- Date: Sat, 11 Nov 2006 16:15:53 -0500
Why not bind the buttons' "enabled" to the array controller's
canAdd and canRemove keys?
--
I.S.
On Nov 11, 2006, at 4:12 PM, Marc Respass wrote:
Hi,
I have some buttons in my window's toolbar that are bound to an
NSArrayController (selectNext, selectPrevious, add, remove, etc).
This is a non-document based CoreData app. My AppDelegate is also
the window (with the toolbar) delegate and I implement
-(BOOL)validateToolbarItem:(NSToolbarItem *)toolbarItem
which works fine for the Save button because the Save button's
target is the app delegate but it doesn't get called for any of the
buttons whose target is the array controller. This leads me to
think that toolbar validation is sent to the target of the
toolbaritem. Is that correct? If so, I expect that I will need to
subclass NSArrayController and put the validation there. What would
be cool is subclassing NSArrayController, adding a delegate, and
somehow forwarding the message. Or maybe I can just forward some
messages to the NSArrayController. This is not something I've ever
done but I remember hearing people talk about message forwarding in
Cocoa and WebObjects.
Any tips are appreciated.
Thanks
Marc
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