On Nov 7, 2011, at 11:16 AM, Jonathan Taylor wrote: > Thanks very much for your reply!
You're welcome. >> What would you sensibly bind to the File's Owner itself, rather than one of >> its properties? In other words, what is bound to or through the object >> controller? > > OK, I am not absolutely sure I've understood what you're getting at here, but > I will try and answer in two parts - firstly what I originally did, and still > do for a number of other windows, followed by the exact situation for this > window. It may be that I am doing something wrong in either or both of these, > but it may help explain how I've ended up where I have. > > == What I originally did == > > The "Content Object" of the ObjectController is bound to "File's Owner.self" > and various GUI text boxes are bound to variables within the file's owner > e.g. a text box bound to Object Controller.selection.speed. Rightly or > wrongly, the data model is contained within the window controller - it really > didn't seem worth the effort of separating them out. > > Assuming I have set everything up correctly, this was originally suggested to > me by a poster on here in order that I could make calls to > [myObjectController commitEditing] when I needed to. > > == The actual situation for this window == > > I'm not sure if this is what you are getting at here, but actually in this > specific case there IS a separation between window controller and data model. > The window controller is a very lightweight class which keeps a pointer to > the object "camera" that actually contains the data model. So the text boxes > are actually bound to things like Object > Controller.selection.camera.framerate. Are you suggesting that this could be > the problem and I should be binding the Object Controller to File's > Owner.camera instead of to File's Owner.self, and that this might help break > retain cycles? Well, in this case I certainly think it would be better to bind the object controller to File's Owner.camera. Really, I wasn't so much getting at anything in particular, I just find it odd for an object controller to have a window controller as its content. I also find it odd to bind to File's Owner.self. I can't say for sure that either is the source of the problem, but they strike me as suspicious. If your data model is within the window controller and you want a means to use -commitEditing, then you should probably make the window controller conform to NSEditor and NSEditorRegistration, just as NSController (and thus NSObjectController) does. Regards, Ken _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
