Support closing of a NSWindow presented as sheet via escape key

2
votes

How do I setup an NSWindows (on OS X) to be closed when the user presses the escape key?

  • The window is presented as a sheet via presentingWindow.beginSheet(mySheetWindow, completionHandler:nil)
  • It has a close button (via IB) that has a key equivalent set to 'escape'. This close button is already working
  • Pressing escape leads to the system audio error output ('Funk' - Sound), but no logging and no closing of the window.
1
objective-cmacosswiftinterface-builder

1 Answers

3
votes

You have to add a regular button and position it at the top left corner of your window. Set your button width and alpha to 0.

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Click at the key equivalent field and press ESC. It will show the escape key icon

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Then create your IBAction for the hidden button as follow:

@IBAction func closeWindowAction(sender: AnyObject) {

    window.close()
}

Make sure you have your window outlet connected to the proper window:

@IBOutlet weak var window: NSWindow!