Gemini/Gemini-iOS/SceneDelegate.swift

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//
// SceneDelegate.swift
// Gemini-iOS
//
// Created by Shadowfacts on 7/15/20.
//
import UIKit
import SwiftUI
import BrowserCore
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import SafariServices
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import Combine
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import Intents
class SceneDelegate: UIResponder, UIWindowSceneDelegate {
var window: UIWindow?
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var navigationManager: NavigationManager!
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private var cancellables = [AnyCancellable]()
func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
// Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.
// If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
// This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).
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navigationManager = createNavigationManager(for: session, with: connectionOptions)
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navigationManager.delegate = self
// Create the SwiftUI view that provides the window contents.
// let contentView = ContentView(navigator: navigationManager)
// Use a UIHostingController as window root view controller.
if let windowScene = scene as? UIWindowScene {
let window = UIWindow(windowScene: windowScene)
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window.overrideUserInterfaceStyle = Preferences.shared.theme
window.rootViewController = BrowserNavigationController(navigator: navigationManager)
// window.rootViewController = UIHostingController(rootView: contentView)
// window.rootViewController = BrowserViewController(navigator: navigationManager)
self.window = window
window.makeKeyAndVisible()
}
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Preferences.shared.$theme
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.sink { [unowned self] (newStyle) in
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self.window!.overrideUserInterfaceStyle = newStyle
}
.store(in: &cancellables)
}
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func scene(_ scene: UIScene, openURLContexts URLContexts: Set<UIOpenURLContext>) {
if let context = URLContexts.first {
navigationManager.changeURL(context.url)
}
}
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func scene(_ scene: UIScene, continue userActivity: NSUserActivity) {
if let url = userActivity.geminiURL {
navigationManager.changeURL(url)
}
}
func sceneDidDisconnect(_ scene: UIScene) {
// Called as the scene is being released by the system.
// This occurs shortly after the scene enters the background, or when its session is discarded.
// Release any resources associated with this scene that can be re-created the next time the scene connects.
// The scene may re-connect later, as its session was not necessarily discarded (see `application:didDiscardSceneSessions` instead).
}
func sceneDidBecomeActive(_ scene: UIScene) {
// Called when the scene has moved from an inactive state to an active state.
// Use this method to restart any tasks that were paused (or not yet started) when the scene was inactive.
}
func sceneWillResignActive(_ scene: UIScene) {
// Called when the scene will move from an active state to an inactive state.
// This may occur due to temporary interruptions (ex. an incoming phone call).
}
func sceneWillEnterForeground(_ scene: UIScene) {
// Called as the scene transitions from the background to the foreground.
// Use this method to undo the changes made on entering the background.
}
func sceneDidEnterBackground(_ scene: UIScene) {
// Called as the scene transitions from the foreground to the background.
// Use this method to save data, release shared resources, and store enough scene-specific state information
// to restore the scene back to its current state.
}
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func stateRestorationActivity(for scene: UIScene) -> NSUserActivity? {
return NSUserActivity(navigationManager: navigationManager)
}
private func createNavigationManager(for session: UISceneSession, with connectionOptions: UIScene.ConnectionOptions) -> NavigationManager {
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// try to restore the existing nav manager if there is one
if let manager = session.stateRestorationActivity?.navigationManager {
// if there's a user activity with a gemini url (e.g., from OpenURLIntentHandler),
// navigate the existing manager to that URL
if let newURL = connectionOptions.userActivities.first?.geminiURL {
manager.changeURL(newURL)
}
return manager
}
// otherwise, work out the initial URL and create a new manager
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var initialURL: URL? = nil
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if let activity = connectionOptions.userActivities.first ?? session.stateRestorationActivity {
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if let manager = activity.navigationManager {
return manager
} else if let url = activity.geminiURL {
initialURL = url
}
}
if initialURL == nil {
initialURL = connectionOptions.urlContexts.first?.url
}
if initialURL == nil {
if ProcessInfo.processInfo.environment.keys.contains("DEFAULT_URL") {
initialURL = URL(string: ProcessInfo.processInfo.environment["DEFAULT_URL"]!)!
} else {
initialURL = Preferences.shared.homepage
}
}
return NavigationManager(url: initialURL!)
}
}
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extension SceneDelegate: NavigationManagerDelegate {
func loadNonGeminiURL(_ url: URL) {
UIApplication.shared.open(url, options: [.universalLinksOnly: true]) { (success) in
guard !success else { return }
if url.scheme == "http" || url.scheme == "https" {
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if Preferences.shared.useInAppSafari {
let config = SFSafariViewController.Configuration()
config.entersReaderIfAvailable = Preferences.shared.useReaderMode
let vc = SFSafariViewController(url: url, configuration: config)
self.window?.rootViewController?.present(vc, animated: true)
} else {
UIApplication.shared.open(url, options: [:])
}
} else {
let alert = UIAlertController(title: "Cannot open '\(url.scheme!)' URL", message: url.absoluteString, preferredStyle: .alert)
alert.addAction(UIAlertAction(title: "Copy URL", style: .default, handler: { (_) in
UIPasteboard.general.setObjects([url])
}))
alert.addAction(UIAlertAction(title: "OK", style: .cancel, handler: nil))
self.window!.rootViewController!.present(alert, animated: true)
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}
}
}
}