Renamed the NavigationRouter router in the Core library as PushNavigationRouter router and implemented the inheritance from the BaseNavigationRouter class.
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//
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// NavigationRouter.swift
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// Core
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//
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// Created by Javier Cicchelli on 11/04/2023.
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// Copyright © 2023 Röck+Cöde. All rights reserved.
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//
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import UIKit
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/// This class is responsible for presenting view controllers, as it is a concrete implementation of the `Router` protocol, but it won't know what view controller or which view controller is next.
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public class NavigationRouter: NSObject {
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// MARK: Properties
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/// A navigation controller to use within this concrete router.
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private let navigationController: UINavigationController
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/// A root view controller coming in from the navigation controller, if any.
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private let rootViewController: UIViewController?
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/// Dictionary that persist `onDismiss` closure for its respective view controllers until one of the later is dismissed.
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private var onDismissForViewController: [UIViewController: Router.OnDismissedClosure] = [:]
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// MARK: Initialisers
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/// Initialise this router.
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/// - Parameter navigationController: A `UINavigationController` navigation controller instance to use in this router.
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public init(navigationController: UINavigationController) {
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self.navigationController = navigationController
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self.rootViewController = navigationController.viewControllers.first
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super.init()
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self.navigationController.delegate = self
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}
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}
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// MARK: - Router
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extension NavigationRouter: Router {
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// MARK: Functions
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public func present(
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_ viewController: UIViewController,
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animated: Bool,
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onDismiss: OnDismissedClosure?
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) {
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onDismissForViewController[viewController] = onDismiss
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navigationController.pushViewController(viewController, animated: animated)
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}
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public func dismiss(animated: Bool) {
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guard let rootViewController else {
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navigationController.popViewController(animated: animated)
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return
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}
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performOnDismissed(for: rootViewController)
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navigationController.popToViewController(rootViewController, animated: animated)
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}
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}
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// MARK: - UINavigationControllerDelegate
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extension NavigationRouter: UINavigationControllerDelegate {
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// MARK: Functions
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public func navigationController(
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_ navigationController: UINavigationController,
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didShow viewController: UIViewController,
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animated: Bool
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) {
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guard let dismissedViewController = navigationController.transitionCoordinator?.viewController(forKey: .from) else {
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return
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}
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performOnDismissed(for: dismissedViewController)
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}
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}
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// MARK: - Helpers
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private extension NavigationRouter {
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// MARK: Functions
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func performOnDismissed(for viewController: UIViewController) {
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guard let onDismiss = onDismissForViewController[viewController] else {
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return
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}
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onDismiss()
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onDismissForViewController[viewController] = nil
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}
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}
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@ -0,0 +1,64 @@
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//
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// PushNavigationRouter.swift
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// Core
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//
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// Created by Javier Cicchelli on 11/04/2023.
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// Copyright © 2023 Röck+Cöde. All rights reserved.
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//
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import UIKit
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/// This class is responsible for presenting view controllers, as it is a concrete implementation of the `Router` protocol, but it won't know what view controller or which view controller is next.
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public class PushNavigationRouter: BaseNavigationRouter {
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// MARK: Properties
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/// A root view controller coming in from the navigation controller, if any.
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private let rootViewController: UIViewController?
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// MARK: Initialisers
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/// Initialise this router.
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/// - Parameters:
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/// - navigationController: A `UINavigationController` navigation controller instance to use in this router.
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/// - rootViewController: A `UIViewController` view controller instance to define as a root view controller of the navigation controller.
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/// - Note This initialiser added the `rootViewController` parameter although it is not really needed to differentiate itself from the `.init(navigationController:)` implemented for the `BaseNavigationRouter` base class.
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public init(
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navigationController: UINavigationController,
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rootViewController: UIViewController? = nil
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) {
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self.rootViewController = navigationController.viewControllers.first ?? rootViewController
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super.init(navigationController: navigationController)
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}
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}
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// MARK: - Router
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extension PushNavigationRouter: Router {
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// MARK: Functions
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public func present(
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_ viewController: UIViewController,
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animated: Bool,
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onDismiss: OnDismissedClosure?
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) {
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onDismissForViewController[viewController] = onDismiss
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navigationController.pushViewController(viewController, animated: animated)
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}
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public func dismiss(animated: Bool) {
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guard let rootViewController else {
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navigationController.popViewController(animated: animated)
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return
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}
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performOnDismissed(for: rootViewController)
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navigationController.popToViewController(rootViewController, animated: animated)
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}
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}
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