 //
 //  ---------------------------------------------------------------------------
 //
-//  © 2016-2018 1024jp
+//  © 2016-2019 1024jp
 //
 //  Licensed under the Apache License, Version 2.0 (the "License");
 //  you may not use this file except in compliance with the License.

            control.isEnabled = validator.validateTouchBarItem(self)
        case let validator as NSUserInterfaceValidations:
            control.isEnabled = validator.validateUserInterfaceItem(self)
        default: break
        }
    }

        guard
            let control = self.control,
            let action = control.action,
            let validator = NSApp.target(forAction: action, to: control.target, from: self) as AnyObject?
            else { return }
        
        switch validator {
