Self Returning UIButton

//See below class for example usage
class GIBbutton : UIButton{
    var action : ((UIButton!)->Void)!
    
    convenience init(frame:CGRect,controlEvents:[UIControlEvents],targetAction:((UIButton!)->Void)!){
        self.init()
        self.frame = frame
        action = targetAction
        for event in controlEvents{
            self.addTarget(self, action: #selector(GIBbutton.performOurAction), forControlEvents: event)
        }
    }
    
    func performOurAction(button:UIButton,completion:(UIButton)){
        self.action(self)
    }
}


import UIKit

class ViewController: UIViewController {
    
    var count = 1

    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // Button 1
        let button = GIBbutton(frame: CGRect(x: 60, y: 30, width: 200, height: 60), controlEvents: [.TouchUpInside], targetAction: { button in
            button.setTitle("Title \(self.count)", forState: .Normal)
            self.count += 1
        })
        button.backgroundColor = UIColor.orangeColor()
        button.setTitleColor(UIColor.whiteColor(), forState: .Normal)
        button.setTitle("Title Default", forState: .Normal)

        
        self.view.addSubview(button)

    }
    
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
}