I want my app to open new untitled document every time it starts. It worked in 10.6 but now I upgraded to 10.8 and when I close the window with Command+W and then restart the application it won't open any windows.
How do I make it open a new window every time the app starts, regardless of how it exited previously?
I tried to return YES in both applicationShouldOpenUntitledFile: and applicationOpenUntitledFile: of the app delegate without luck.
I'm not sure exactly what changed since 10.6 but the issue is that the return value of applicationOpenUntitledFile: is suppose to be based on whether your manual open of a new window was successful.
In your implementation of applicationOpenUntitledFile: you should open a new window with an untitled document yourself. The documentation for this is under NSApplicationDelegate
Reasons why document based app won't open new untitled window:
Appdelegate method returns false
func applicationShouldOpenUntitledFile(_ sender: NSApplication) -> Bool {
return false
}
Other reason might be this:
No restoration window found + some code presented other window -> no newDocument window will be created.
In this case call NSDocumentController.shared.newDocument(self)
