On macOS unlike iOS, it appears if you want to disable reopening documents at launch, you need to rely on the application delegate notifications vs the newer methods - with an options argument, like on iOS:
applicationWillFinishLaunching(_:), here you want to instantiate your sub-classed document controller
// We need our own to reopen our "document" urls
_ = DocumentController.init()
applicationDidFinishLaunching(_:), here you want to inspect the supplied userInfo
if let info = note.userInfo{
if let launchURL = info[NSApplication.launchIsDefaultUserInfoKey] as? String {
Swift.print("launchIsDefaultUserInfoKey: notif \(launchURL)")
disableDocumentReOpening = launchURL.boolValue
}
if let notif = info[NSApplication.launchUserNotificationUserInfoKey] as? String {
Swift.print("applicationDidFinishLaunching: notif \(notif)")
disableDocumentReOpening = true
}
}
so when my document controller is called to do the doc restores, it would see this flag within the app delegate: var disableDocumentReOpening = false.
func restoreWindow(withIdentifier identifier: NSUserInterfaceItemIdentifier, state: NSCoder, completionHandler: @escaping (NSWindow?, Error?) -> Void) {
if (NSApp.delegate as! AppDelegate).disableDocumentReOpening {
completionHandler(nil, NSError.init(domain: NSCocoaErrorDomain, code: NSUserCancelledError, userInfo: nil) )
}
else
{
NSDocumentController.restoreWindow(withIdentifier: identifier, state: state, completionHandler: completionHandler)
}
}
but unfortunately, I have something wrong but what? Manually launching the app in debugger, it appears the document controller restore call is ahead of the app delegate's routine to inspect the userInfo.
I had read a SO post on this, showing an objective-c code snippet, but flag was local to the controller, but didn't understand how you could have a read/write class var - as I tried. Also didn't understand its use of a class function as doc says its an instance method, but trying that as well didn't work either.
What am I missing?
