On 26 Oct 2012, at 01:11, Seth Willits <[email protected]> wrote:
> On Oct 25, 2012, at 4:36 AM, Gerriet M. Denkmann wrote:
>
>> This works, but I have a strong feeling that there is a very obvious better
>> solution which I somehow cannot see.
>
>
> There actually isn't an obvious solution.
Strange.
I thought that having some InfoPanel which shows data of the current NSDocument
would be a fairly common scenario.
But anyway.
I decided to follow your suggestions.
My app delegate now has:
@property (strong) GmdDocument *currentDocument;
In applicationDidFinishLaunching: it registers for
NSWindowDidBecomeMainNotification and NSWindowWillCloseNotification (not for
NSWindowDidResignMainNotification because I want my InfoPanel to keep it's data
when some other app becomes active).
The notification method is:
- (void)someWindowChanged: (NSNotification *)noti
{
NSWindow *window = [ noti object ];
if ( ![ window isMemberOfClass: [ NSWindow class ] ] ) return; //
ignore non-Windows
NSWindowController *windowController = [ window windowController ];
if ( windowController == nil ) return; // ignore strange windows
GmdDocument *document = [ windowController document ];
if ( ![ document isKindOfClass: [ GmdDocument class ] ] ) return;
// ignore strange documents
if ( [ [ noti name ] isEqualToString: NSWindowWillCloseNotification ] )
document = nil;
self.currentDocument = document;
}
The InfoPanel binds it's things through File's Owner: currentDocument.
Seems to work perfectly now.
Thanks a lot for your help!
Kind regards,
Gerriet.
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