NSWindowController Autosave using Storyboard

Question

I have a Swift application that is launching a simple NSWindow, like so:

func applicationDidFinishLaunching(notification: NSNotification!) {
    let         


        

Answer 1

In order to satisfy the two conditions identified in the accepted answer and comments, subclassing the window controller seems to work. You can then avoid setting this property uniquely in code for every window controller and simply specify the storyboard's window autosave property (and set the window controller's subclass).

The WindowController's windowFrameAutosaveName must be

1. not blank
2. different to Window's frameAutosaveName

class AutoFrameSavingWindowController: NSWindowController
{
    override func awakeFromNib() {
        if let autosaveName = window?.frameAutosaveName {
            windowFrameAutosaveName = autosaveName + " temp"
            }
        }
    }
}