216 lines
12 KiB
Swift
216 lines
12 KiB
Swift
//
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// NavigationController.swift
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// MVMCoreUI
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//
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// Created by Scott Pfeil on 10/24/19.
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// Copyright © 2019 Verizon Wireless. All rights reserved.
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//
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import UIKit
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@objcMembers open class NavigationController: UINavigationController, MVMCoreViewManagerViewControllerProtocol {
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public weak var manager: (UIViewController & MVMCoreViewManagerProtocol)?
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/// TODO: Remove after removing legacy connections.
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public var separatorView: Line? {
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get {
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return (navigationBar as? NavigationBar)?.line
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}
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}
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/// Getter for the main navigation controller
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public static func navigationController() -> Self? {
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return MVMCoreActionUtility.initializerClassCheck(MVMCoreUISession.sharedGlobal()?.navigationController, classToVerify: self) as? Self
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}
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/// Sets up the application with a navigation controller
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public static func setupNavigationController() -> NavigationController {
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let navigationController = NavigationController(navigationBarClass: NavigationBar.self, toolbarClass: nil)
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MVMCoreUISession.sharedGlobal()?.navigationController = navigationController
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MVMCoreNavigationHandler.shared()?.viewControllerToPresentOn = navigationController
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MVMCoreNavigationHandler.shared()?.navigationController = navigationController
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MVMCoreNavigationHandler.shared()?.addDelegate(navigationController)
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return navigationController
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}
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/// Sets up the application with a navigation controller as the main container.
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public static func setupNavigationControllerAsMainController() -> NavigationController {
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let navigationController = setupNavigationController()
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MVMCoreUISession.sharedGlobal()?.setup(asStandardLoadViewDelegate: navigationController)
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return navigationController
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}
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/// Convenience function for setting the navigation item.
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public static func setNavigationItem(navigationController: UINavigationController, navigationItemModel: NavigationItemModelProtocol, viewController: UIViewController) {
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viewController.navigationItem.title = navigationItemModel.title
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viewController.navigationItem.accessibilityLabel = navigationItemModel.title
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viewController.navigationItem.hidesBackButton = navigationItemModel.hidesSystemBackButton
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viewController.navigationItem.leftItemsSupplementBackButton = !navigationItemModel.hidesSystemBackButton
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setNavigationButtons(navigationController: navigationController, navigationItemModel: navigationItemModel, viewController: viewController)
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setNavigationTitleView(navigationController: navigationController, navigationItemModel: navigationItemModel, viewController: viewController)
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}
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/// Convenience function for setting the navigation buttons.
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public static func setNavigationButtons(navigationController: UINavigationController, navigationItemModel: NavigationItemModelProtocol, viewController: UIViewController) {
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let delegate = (viewController as? MVMCoreViewControllerProtocol)?.delegateObject?() as? MVMCoreUIDelegateObject
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var leftItems: [UIBarButtonItem] = []
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if navigationItemModel.hidesSystemBackButton,
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navigationItemModel.alwaysShowBackButton != false {
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if let backButtonModel = navigationItemModel.backButton,
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MVMCoreNavigationHandler.shared()?.getViewControllers(for: navigationController)?.count ?? 0 > 1 || navigationItemModel.alwaysShowBackButton ?? false {
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leftItems.append(backButtonModel.createNavigationItemButton(delegateObject: delegate, additionalData: nil))
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}
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if let leftItemModels = navigationItemModel.additionalLeftButtons {
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for item in leftItemModels {
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leftItems.append(item.createNavigationItemButton(delegateObject: delegate, additionalData: nil))
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}
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}
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}
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viewController.navigationItem.leftBarButtonItems = leftItems.count > 0 ? leftItems : nil
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var rightItems: [UIBarButtonItem] = []
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if let rightItemModels = navigationItemModel.additionalRightButtons {
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for item in rightItemModels {
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rightItems.append(item.createNavigationItemButton(delegateObject: delegate, additionalData: nil))
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}
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}
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viewController.navigationItem.rightBarButtonItems = rightItems.count > 0 ? rightItems : nil
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}
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/// Convenience function for setting the navigation bar ui, except for the buttons.
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public static func setNavigationBarUI(navigationController: UINavigationController, navigationItemModel: NavigationItemModelProtocol, viewController: UIViewController) {
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let navigationBar = navigationController.navigationBar
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if let model = navigationItemModel as? NavigationItemModelProtocol & MoleculeModelProtocol,
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let navigationBar = navigationBar as? MoleculeViewProtocol {
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navigationBar.set(with: model, nil, nil)
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} else {
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setNavigation(bar: navigationController.navigationBar, model: navigationItemModel)
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}
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navigationController.setNavigationBarHidden(navigationItemModel.hidden, animated: true)
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}
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/// Convenience function for settin the navigation bar by the model
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public static func setNavigation(bar: UINavigationBar, model: NavigationItemModelProtocol) {
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let font = MFStyler.fontBoldBodySmall(false)
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let backgroundColor = model.backgroundColor?.uiColor
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let tint = model.tintColor.uiColor
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bar.tintColor = tint
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if #available(iOS 13.0, *) {
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let appearance = UINavigationBarAppearance()
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appearance.configureWithOpaqueBackground()
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appearance.titleTextAttributes = [NSAttributedString.Key.font: font,
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NSAttributedString.Key.foregroundColor: tint];
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appearance.backgroundColor = backgroundColor
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appearance.titleTextAttributes.updateValue(tint, forKey: .foregroundColor)
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bar.standardAppearance = appearance
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bar.scrollEdgeAppearance = appearance
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} else {
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// Fallback on earlier versions
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bar.shadowImage = UIImage()
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bar.isOpaque = true
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bar.titleTextAttributes = [NSAttributedString.Key.font: font,
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NSAttributedString.Key.foregroundColor: tint];
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bar.barTintColor = backgroundColor
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}
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}
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/// Convenience function for setting the navigation titleView.
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public static func setNavigationTitleView(navigationController: UINavigationController, navigationItemModel: NavigationItemModelProtocol?, viewController: UIViewController) {
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let delegate = (viewController as? MVMCoreViewControllerProtocol)?.delegateObject?() as? MVMCoreUIDelegateObject
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if let titleViewModel = navigationItemModel?.titleView, let molecule = ModelRegistry.createMolecule(titleViewModel, delegateObject: delegate, additionalData: nil) {
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viewController.navigationItem.titleView = molecule
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}
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}
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/// Convenience function to return the navigation model of the lowest controller traversing managers if applicable.
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public func getNavigationModel(from viewController: UIViewController) -> NavigationItemModelProtocol? {
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return (viewController as? PageProtocol)?.pageModel?.navigationBar
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}
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/// Verifies the controller is the currently displayed controller.
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public func isDisplayed(viewController: UIViewController) -> Bool {
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guard let topViewController = topViewController,
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viewController == MVMCoreUIUtility.getViewControllerTraversingManagers(topViewController) else {
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return false
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}
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return true
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}
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}
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extension NavigationController: MVMCoreViewManagerProtocol {
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public func getCurrentViewController() -> UIViewController? {
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guard let topViewController = topViewController else { return nil }
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return MVMCoreUIUtility.getViewControllerTraversingManagers(topViewController)
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}
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public func containsPage(withPageType pageType: String?) -> Bool {
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for controller in viewControllers {
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if let manager = controller as? MVMCoreViewManagerProtocol,
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manager.containsPage(withPageType: pageType) {
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return true
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} else if let controller = controller as? MVMCoreViewControllerProtocol,
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controller.pageType == pageType {
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return true
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}
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}
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return false
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}
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public func newDataReceived(in viewController: UIViewController) {
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if isDisplayed(viewController: viewController),
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let topViewController = topViewController,
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let model = getNavigationModel(from: viewController) {
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Self.setNavigationItem(navigationController: self, navigationItemModel: model, viewController: topViewController)
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Self.setNavigationBarUI(navigationController: self, navigationItemModel: model, viewController: topViewController)
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}
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manager?.newDataReceived?(in: viewController)
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}
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public func willDisplay(_ viewController: UIViewController) {
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if let topViewController = topViewController,
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let model = getNavigationModel(from: viewController) {
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Self.setNavigationItem(navigationController: self, navigationItemModel: model, viewController: topViewController)
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}
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manager?.willDisplay?(viewController)
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}
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public func displayedViewController(_ viewController: UIViewController) {
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if isDisplayed(viewController: viewController),
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let topViewController = topViewController,
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let model = getNavigationModel(from: viewController) {
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Self.setNavigationBarUI(navigationController: self, navigationItemModel: model, viewController: topViewController)
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}
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manager?.displayedViewController?(viewController)
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}
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}
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extension NavigationController: MVMCorePresentationDelegateProtocol {
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public func navigationController(_ navigationController: UINavigationController, prepareDisplayFor viewController: UIViewController) {
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guard self == navigationController,
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let newViewController = MVMCoreUIUtility.getViewControllerTraversingManagers(viewController),
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let model = getNavigationModel(from: newViewController) else { return }
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Self.setNavigationItem(navigationController: self, navigationItemModel: model, viewController: viewController)
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}
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public func navigationController(_ navigationController: UINavigationController, willDisplay viewController: UIViewController) {
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guard self == navigationController,
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let newViewController = MVMCoreUIUtility.getViewControllerTraversingManagers(viewController) else { return }
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if let controller = viewController as? (UIViewController & MVMCoreViewManagerViewControllerProtocol) {
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MVMCoreViewManagerViewControllerProtocolHelper.helpSetManager(self, viewController: controller)
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}
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manager?.willDisplay?(newViewController)
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}
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public func navigationController(_ navigationController: UINavigationController, displayedViewController viewController: UIViewController) {
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guard self == navigationController,
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let newViewController = MVMCoreUIUtility.getViewControllerTraversingManagers(viewController) else { return }
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if let model = getNavigationModel(from: newViewController) {
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Self.setNavigationBarUI(navigationController: self, navigationItemModel: model, viewController: viewController)
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}
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manager?.displayedViewController?(newViewController)
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if let controller = viewController as? (UIViewController & MVMCoreViewManagerViewControllerProtocol) {
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controller.viewControllerReady?(inManager: self)
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}
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}
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}
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