262 lines
11 KiB
Swift
262 lines
11 KiB
Swift
//
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// SceneCoordinator.swift
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// Mastodon
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//
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// Created by Cirno MainasuK on 2021-1-27.
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import UIKit
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import SafariServices
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import CoreDataStack
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final public class SceneCoordinator {
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private weak var scene: UIScene!
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private weak var sceneDelegate: SceneDelegate!
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private weak var appContext: AppContext!
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let id = UUID().uuidString
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init(scene: UIScene, sceneDelegate: SceneDelegate, appContext: AppContext) {
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self.scene = scene
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self.sceneDelegate = sceneDelegate
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self.appContext = appContext
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scene.session.sceneCoordinator = self
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}
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}
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extension SceneCoordinator {
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enum Transition {
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case show // push
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case showDetail // replace
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case modal(animated: Bool, completion: (() -> Void)? = nil)
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case custom(transitioningDelegate: UIViewControllerTransitioningDelegate)
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case customPush
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case safariPresent(animated: Bool, completion: (() -> Void)? = nil)
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case activityViewControllerPresent(animated: Bool, completion: (() -> Void)? = nil)
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case alertController(animated: Bool, completion: (() -> Void)? = nil)
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}
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enum Scene {
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// onboarding
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case welcome
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case mastodonPickServer(viewMode: MastodonPickServerViewModel)
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case mastodonPinBasedAuthentication(viewModel: MastodonPinBasedAuthenticationViewModel)
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case mastodonRegister(viewModel: MastodonRegisterViewModel)
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case mastodonServerRules(viewModel: MastodonServerRulesViewModel)
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case mastodonConfirmEmail(viewModel: MastodonConfirmEmailViewModel)
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case mastodonResendEmail(viewModel: MastodonResendEmailViewModel)
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case mastodonWebView(viewModel:WebViewModel)
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// compose
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case compose(viewModel: ComposeViewModel)
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// profile
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case profile(viewModel: ProfileViewModel)
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// misc
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case alertController(alertController: UIAlertController)
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case safari(url: URL)
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#if DEBUG
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case publicTimeline
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#endif
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var isOnboarding: Bool {
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switch self {
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case .welcome,
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.mastodonPickServer,
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.mastodonPinBasedAuthentication,
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.mastodonRegister,
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.mastodonServerRules,
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.mastodonConfirmEmail,
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.mastodonResendEmail:
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return true
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default:
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return false
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}
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}
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}
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}
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extension SceneCoordinator {
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func setup() {
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let viewController = MainTabBarController(context: appContext, coordinator: self)
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sceneDelegate.window?.rootViewController = viewController
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}
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func setupOnboardingIfNeeds(animated: Bool) {
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// Check user authentication status and show onboarding if needs
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do {
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let request = MastodonAuthentication.sortedFetchRequest
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if try appContext.managedObjectContext.count(for: request) == 0 {
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DispatchQueue.main.async {
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self.present(
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scene: .welcome,
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from: nil,
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transition: .modal(animated: animated, completion: nil)
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)
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}
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}
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} catch {
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assertionFailure(error.localizedDescription)
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}
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}
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@discardableResult
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func present(scene: Scene, from sender: UIViewController?, transition: Transition) -> UIViewController? {
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guard let viewController = get(scene: scene) else {
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return nil
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}
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guard var presentingViewController = sender ?? sceneDelegate.window?.rootViewController?.topMost else {
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return nil
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}
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// adapt for child controller
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if let navigationControllerVisibleViewController = presentingViewController.navigationController?.visibleViewController {
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switch viewController {
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case is ProfileViewController:
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let barButtonItem = UIBarButtonItem(title: navigationControllerVisibleViewController.title, style: .plain, target: nil, action: nil)
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barButtonItem.tintColor = .white
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navigationControllerVisibleViewController.navigationItem.backBarButtonItem = barButtonItem
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default:
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navigationControllerVisibleViewController.navigationItem.backBarButtonItem = nil
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}
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}
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if let mainTabBarController = presentingViewController as? MainTabBarController,
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let navigationController = mainTabBarController.selectedViewController as? UINavigationController,
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let topViewController = navigationController.topViewController {
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presentingViewController = topViewController
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}
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switch transition {
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case .show:
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presentingViewController.show(viewController, sender: sender)
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case .showDetail:
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let navigationController = AdaptiveStatusBarStyleNavigationController(rootViewController: viewController)
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presentingViewController.showDetailViewController(navigationController, sender: sender)
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case .modal(let animated, let completion):
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let modalNavigationController: UINavigationController = {
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if scene.isOnboarding {
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return AdaptiveStatusBarStyleNavigationController(rootViewController: viewController)
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} else {
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return UINavigationController(rootViewController: viewController)
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}
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}()
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modalNavigationController.modalPresentationCapturesStatusBarAppearance = true
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if let adaptivePresentationControllerDelegate = viewController as? UIAdaptivePresentationControllerDelegate {
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modalNavigationController.presentationController?.delegate = adaptivePresentationControllerDelegate
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}
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presentingViewController.present(modalNavigationController, animated: animated, completion: completion)
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case .custom(let transitioningDelegate):
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viewController.modalPresentationStyle = .custom
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viewController.transitioningDelegate = transitioningDelegate
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sender?.present(viewController, animated: true, completion: nil)
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case .customPush:
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// set delegate in view controller
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assert(sender?.navigationController?.delegate != nil)
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sender?.navigationController?.pushViewController(viewController, animated: true)
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case .safariPresent(let animated, let completion):
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viewController.modalPresentationCapturesStatusBarAppearance = true
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presentingViewController.present(viewController, animated: animated, completion: completion)
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case .activityViewControllerPresent(let animated, let completion):
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viewController.modalPresentationCapturesStatusBarAppearance = true
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presentingViewController.present(viewController, animated: animated, completion: completion)
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case .alertController(let animated, let completion):
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viewController.modalPresentationCapturesStatusBarAppearance = true
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presentingViewController.present(viewController, animated: animated, completion: completion)
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}
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return viewController
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}
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}
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private extension SceneCoordinator {
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func get(scene: Scene) -> UIViewController? {
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let viewController: UIViewController?
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switch scene {
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case .welcome:
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let _viewController = WelcomeViewController()
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viewController = _viewController
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case .mastodonPickServer(let viewModel):
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let _viewController = MastodonPickServerViewController()
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_viewController.viewModel = viewModel
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viewController = _viewController
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case .mastodonPinBasedAuthentication(let viewModel):
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let _viewController = MastodonPinBasedAuthenticationViewController()
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_viewController.viewModel = viewModel
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viewController = _viewController
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case .mastodonRegister(let viewModel):
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let _viewController = MastodonRegisterViewController()
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_viewController.viewModel = viewModel
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viewController = _viewController
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case .mastodonServerRules(let viewModel):
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let _viewController = MastodonServerRulesViewController()
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_viewController.viewModel = viewModel
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viewController = _viewController
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case .mastodonConfirmEmail(let viewModel):
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let _viewController = MastodonConfirmEmailViewController()
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_viewController.viewModel = viewModel
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viewController = _viewController
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case .mastodonResendEmail(let viewModel):
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let _viewController = MastodonResendEmailViewController()
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_viewController.viewModel = viewModel
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viewController = _viewController
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case .mastodonWebView(let viewModel):
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let _viewController = WebViewController()
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_viewController.viewModel = viewModel
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viewController = _viewController
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case .compose(let viewModel):
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let _viewController = ComposeViewController()
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_viewController.viewModel = viewModel
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viewController = _viewController
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case .profile(let viewModel):
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let _viewController = ProfileViewController()
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_viewController.viewModel = viewModel
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viewController = _viewController
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case .alertController(let alertController):
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if let popoverPresentationController = alertController.popoverPresentationController {
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assert(
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popoverPresentationController.sourceView != nil ||
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popoverPresentationController.sourceRect != .zero ||
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popoverPresentationController.barButtonItem != nil
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)
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}
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viewController = alertController
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case .safari(let url):
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guard let scheme = url.scheme?.lowercased(),
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scheme == "http" || scheme == "https" else {
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return nil
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}
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viewController = SFSafariViewController(url: url)
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#if DEBUG
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case .publicTimeline:
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let _viewController = PublicTimelineViewController()
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_viewController.viewModel = PublicTimelineViewModel(context: appContext)
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viewController = _viewController
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#endif
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}
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setupDependency(for: viewController as? NeedsDependency)
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return viewController
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}
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private func setupDependency(for needs: NeedsDependency?) {
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needs?.context = appContext
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needs?.coordinator = self
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}
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}
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