git ssb

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//
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//  SceneDelegate.swift
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//  localnative-ios
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//
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//  Created by Yi Wang on 4/12/20.
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//  Copyright © 2020 Yi Wang. All rights reserved.
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//
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import UIKit
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import SwiftUI
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class SceneDelegate: UIResponder, UIWindowSceneDelegate {
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    var window: UIWindow?
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    func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
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        // Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.
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        // If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
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        // This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).
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        // Create the SwiftUI view that provides the window contents.
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        let contentView = ContentView().environmentObject(AppState.getEnv())
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        // Use a UIHostingController as window root view controller.
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        if let windowScene = scene as? UIWindowScene {
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            let window = UIWindow(windowScene: windowScene)
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            window.rootViewController = UIHostingController(rootView: contentView)
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            self.window = window
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            window.makeKeyAndVisible()
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        }
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        AppState.search(input: "", offset: 0)
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        let tapGesture = AnyGestureRecognizer(target: window, action:#selector(UIView.endEditing))
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        tapGesture.requiresExclusiveTouchType = false
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        tapGesture.cancelsTouchesInView = false
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        tapGesture.delegate = self //I don't use window as delegate to minimize possible side effects
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        window?.addGestureRecognizer(tapGesture)
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    }
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    func sceneDidDisconnect(_ scene: UIScene) {
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        // Called as the scene is being released by the system.
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        // This occurs shortly after the scene enters the background, or when its session is discarded.
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        // Release any resources associated with this scene that can be re-created the next time the scene connects.
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        // The scene may re-connect later, as its session was not neccessarily discarded (see `application:didDiscardSceneSessions` instead).
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    }
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    func sceneDidBecomeActive(_ scene: UIScene) {
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        // Called when the scene has moved from an inactive state to an active state.
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        // Use this method to restart any tasks that were paused (or not yet started) when the scene was inactive.
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    }
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    func sceneWillResignActive(_ scene: UIScene) {
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        // Called when the scene will move from an active state to an inactive state.
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        // This may occur due to temporary interruptions (ex. an incoming phone call).
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    }
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    func sceneWillEnterForeground(_ scene: UIScene) {
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        // Called as the scene transitions from the background to the foreground.
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        // Use this method to undo the changes made on entering the background.
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    }
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    func sceneDidEnterBackground(_ scene: UIScene) {
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        // Called as the scene transitions from the foreground to the background.
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        // Use this method to save data, release shared resources, and store enough scene-specific state information
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        // to restore the scene back to its current state.
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    }
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}
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class AnyGestureRecognizer: UIGestureRecognizer {
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    override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent) {
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        //To prevent keyboard hide and show when switching from one textfield to another
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        if let textField = touches.first?.view, textField is UITextField {
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            state = .failed
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        } else {
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            state = .began
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        }
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    }
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    override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
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       state = .ended
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    }
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    override func touchesCancelled(_ touches: Set<UITouch>, with event: UIEvent) {
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        state = .cancelled
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    }
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}
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extension SceneDelegate: UIGestureRecognizerDelegate {
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    func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldRecognizeSimultaneouslyWith otherGestureRecognizer: UIGestureRecognizer) -> Bool {
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        return true
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    }
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}
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