//
//  NavigationBarPushAndPopDelegate.swift
//  PaiaiUIKit
//
//  Created by ffib on 2019/1/16.
//  Copyright © 2019 yb. All rights reserved.
//

import Foundation

public protocol NavigationBarPushAndPopDelegate: class {
    func setupNavigationBarPushAndPopDelegate()
}

public extension NavigationBarPushAndPopDelegate where Self: UIViewController & NavigationControllerDelegate {
    func setupNavigationBarPushAndPopDelegate() {
        navigationController?.setDelegate(self)
    }
}

public extension NavigationControllerDelegate where Self: UIViewController & NavigationBarInOut {
    func navigationController(_ navigationController: UINavigationController,
                              willShow viewController: UIViewController, animated: Bool) {
        if viewController != self {
            navigationBarFadeIn()
        } else {
            navigationBarFadeOut()
        }
    }
}