How to do copy paste delete in Swift for macOS

Issue #729

@NSApplicationMain
class AppDelegate: NSObject, NSApplicationDelegate {
    @IBAction func copy(_ sender: Any) {
        print("copy", sender)
    }


    @IBAction func paste(_ sender: Any) {
        print("paste", sender)
    }
}

For delete, we can listen to keyDown in NSWindow

class MyWindow: NSWindow {
    override func keyDown(with event: NSEvent) {
        super.keyDown(with: event)

        guard
            let deleteScalar = UnicodeScalar(NSDeleteCharacter),
            event.charactersIgnoringModifiers == String(deleteScalar)
        else { return }

        NotificationCenter.default.post(Notification(name: .didKeyboardDeleteItem))
    }
}

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Updated at 2020-12-30 05:48:29