PopupView.swift

//
//  PopupModelView.swift

import UIKit

protocol PopupModelViewDelegate : class {
    func onPopupConfirmation()
    func onPopupConfirmationResult(_ result: String)
    func onPopupCancelation()
}

class PopupView: UIView {

    @IBOutlet weak var view: UIView!
    
    weak var delegate: PopupModelViewDelegate?
    
    override init(frame: CGRect) {
        super.init(frame: frame)

        xibSetup("\(type(of: self))")
    }
    
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)

        xibSetup("\(type(of: self))")
    }
    
    internal func xibSetup(_ named: String) {
        view = loadViewFromNib(named)
        
        // use bounds not frame or it'll be offset
        view.frame = bounds
        
        // Make the view stretch with containing view
        view.autoresizingMask = [UIViewAutoresizing.flexibleWidth, UIViewAutoresizing.flexibleHeight]
        
        // mask layer
        let mask = CAShapeLayer()
        mask.path = UIBezierPath(roundedRect: view.frame, cornerRadius: 15).cgPath
        layer.mask = mask
        
        // Adding custom subview on top of our view (over any custom drawing > see note below)
        addSubview(view)
    }
    
    internal func loadViewFromNib(_ named: String) -> UIView {
        let bundle = Bundle(for: type(of: self))
        let nib = UINib(nibName: named, bundle: bundle)
        let view = nib.instantiate(withOwner: self, options: nil)[0] as! UIView
        
        return view
    }
    
    // Only override drawRect: if you perform custom drawing.
    // An empty implementation adversely affects performance during animation.
    override func draw(_ rect: CGRect) {

    }
    
    func configureView(_ message: String, buttonLabel: String) {
        
    }
}

extension PopupView {
    func onPopupConfirm() {
        delegate?.onPopupConfirmation()
    }
    
    func onPopupConfirmWithResult(_ result: String) {
        delegate?.onPopupConfirmationResult(result)
    }

    func onPopupCancel() {
        delegate?.onPopupCancelation()
    }
}