             constant:kButtonTriggerSize)
         
         addConstraints([
-            layoutBackgroundHeight,
-            layoutBackgroundBottom,
-            layoutBackgroundLeft,
-            layoutBackgroundRight,
-            layoutButtonBackTop,
+            layoutButtonBackHeight,
             layoutButtonBackBottom,
             layoutButtonBackLeft,
             layoutButtonBackWidth,
+            layoutButtonReverseHeight,
+            layoutButtonReverseBottom,
+            layoutButtonReverseRight,
+            layoutButtonReverseWidth,
             layoutButtonTriggerTop,
             layoutButtonTriggerLeft,
             layoutButtonTriggerWidth,

            action:#selector(self.actionBack(sender:)),
            for:UIControlEvents.touchUpInside)
        
        let buttonTrigger:VHomeControlCameraMenuTrigger = VHomeControlCameraMenuTrigger(
            controller:controller)
        
        background.addSubview(buttonBack)
        addSubview(background)
        addSubview(buttonTrigger)
        
        let layoutBackgroundHeight:NSLayoutConstraint = NSLayoutConstraint.height(
            view:background,
            constant:kBackgroundHeight)
        let layoutBackgroundBottom:NSLayoutConstraint = NSLayoutConstraint.bottomToBottom(
            view:background,
            toView:self)
        let layoutBackgroundLeft:NSLayoutConstraint = NSLayoutConstraint.leftToLeft(
            view:background,
            toView:self)
        let layoutBackgroundRight:NSLayoutConstraint = NSLayoutConstraint.rightToRight(
            view:background,
            toView:self)
        
        let layoutButtonBackTop:NSLayoutConstraint = NSLayoutConstraint.topToTop(
            view:buttonBack,
            toView:background)
        let layoutButtonBackBottom:NSLayoutConstraint = NSLayoutConstraint.bottomToBottom(
            view:buttonBack,
            toView:background)
        let layoutButtonBackLeft:NSLayoutConstraint = NSLayoutConstraint.leftToLeft(
            view:buttonBack,
            toView:background)
        let layoutButtonBackWidth:NSLayoutConstraint = NSLayoutConstraint.width(
            view:buttonBack,
            constant:kButtonBackWidth)
        
        let layoutButtonTriggerTop:NSLayoutConstraint = NSLayoutConstraint.topToTop(
            view:buttonTrigger,

        backgroundColor = UIColor.clear
        translatesAutoresizingMaskIntoConstraints = false
        self.controller = controller
        
        let buttonBack:UIButton = UIButton()
        buttonBack.translatesAutoresizingMaskIntoConstraints = false
