A NSWindowController object manages a window, usually a window stored in a xib file.
The management of a NSWindowController entails:
- Loading and displaying the window
- Closing the window when appropriate
- Customizing the window’s title
- Storing the window’s frame (size and location) in the defaults database
- Cascading the window in relation to other document windows of the application
A window controller can manage a window by itself or as a role player in the Application Kit’s document-based architecture, which also includes NSDocument and NSDocumentController objects. In this architecture, a window controller is created and managed by a “document” (an instance of an NSDocument subclass) and, in turn, keeps a reference to the document.
