How does OS X load a storyboard based app, and how does it do window management?

Question

I\'m working on a brand new OS X app, and I\'ve taken the daring route of working with a few technologies I haven\'t used much before. (I\'m an iOS developer.)

I\'m usin

Answer 1

1. No. Checking the "Create Document-Based Application" is what made it a document based app. The decision to use Core Data is separate.

2. The Storyboard you get when you make an OS X Document based app is a bit atypical. Notice that there is no arrow in the storyboard telling you where the entry point it. What happens is "Document" is instantiated. It has a method:

   override func makeWindowControllers() {
       // Returns the Storyboard that contains your Document window.
       let storyboard = NSStoryboard(name: "Main", bundle: nil)!
       let windowController = storyboard.instantiateControllerWithIdentifier("Document Window Controller") as NSWindowController
       self.addWindowController(windowController)
   }
   

It goes looking in the storyboard for a controller with the identifier @"Document Window Controller" (which just so happens is that window controller). Document keeps a collection of windowControllers. so Document instantiates it and adds the windowController to that list.

So Document already has a reference to the window controller in Document.windowControllers

(Can someone tell me WHY the Document gets created though? I can't see what actually triggers its creation)