//
//  UIViewController_Addition.swift
//  PaiAi
//
//  Created by mac on 16/7/21.
//  Copyright © 2016年 FFIB. All rights reserved.
//

import UIKit

extension UIViewController {
    var rightBarAction: Selector? {
        get {
            return navigationItem.leftBarButtonItem?.action
        }
        set {
            navigationItem.setRightBars(buttonSpace: 0,
                                        images: [UIImage(named: "更多-右上角-1")],
                                        actions: [newValue!],
                                        target: self)
        }
    }

    var titleWithbackBar: String {
        get {
            return navigationItem.title ?? ""
        }
        set {
            navigationItem.setLeftBars(buttonSpace: 0,
                                       images: [UIImage(named: "back")],
                                       actions: [#selector(backToController)],
                                       target: self)
            navigationController?.navigationBar.setBackgroundImage(UIImage(named: "标题栏 copy 2"), for: .default)
//            navigationController?.delegate = self
//            navigationController?.interactivePopGestureRecognizer?.delegate = self
            let label = UILabel()
            label.textColor = UIColor.white
            label.text = newValue
            label.sizeToFit()
            navigationItem.titleView = label
            navigationController?.interactivePopGestureRecognizer?.isEnabled = true
        }
    }

    @objc open func backToController() {
        popController()
    }
}

//extension UIViewController: UINavigationControllerDelegate {
////    public func gestureRecognizerShouldBegin(_ gestureRecognizer: UIGestureRecognizer) -> Bool {
////        if (navigationController?.viewControllers.count ?? 0) <= 1,
////            gestureRecognizer == navigationController?.interactivePopGestureRecognizer {
////            return false
////        }
////        return true
////    }
//}