On 01/10/2009, at 11:00 AM, Chris Idou wrote:
The doco for
closeAllDocumentsWithDelegate:didCloseAllSelector:contextInfo: says
that it should call
the didCloseAllSelector. How would one do that? This is what I am
doing:
Chris, this stuff is a right old mess. No wonder you're confused.
It says *it* will call that method if all documents are closed. You
don't necessarily have to call anything - looking at the byzantine
interactions between all these methods all I can say is, if you can
avoid it, do so!
What do you want to do? Unless you're overriding - (void)
canCloseDocumentWithDelegate:(id)delegate shouldCloseSelector:(SEL)
shouldCloseSelector contextInfo:(void *)contextInfo
to do something in a non-standard way there's nothing to do. If you
are overriding it, you need to handle the whole kit-n-kaboodle,
including presenting the alert to the user and saving the document to
disk, and finally invoking the mysterious callback selector.
I can't actually see an easy way to invoke the callback selector with
the signature as given - you need to pass it the document (self), a
BOOL and the contextInfo. You can invoke the method directly on the
delegate easily enough, but since you're supposed to use the callback
supplied, that might not work. The only way I can see to do it is to
create an NSInvocation with the selector, set each argument and call
invokeWithTarget: passing the delegate.
Someone else might have a brighter idea - this seems very involved and
badly thought-out.
--Graham
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