UTM/Platform/iOS/UTMExternalSceneDelegate.swift

50 lines
1.9 KiB
Swift

//
// Copyright © 2022 osy. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
import SwiftUI
class UTMExternalSceneDelegate: NSObject, UIWindowSceneDelegate, ObservableObject {
var window: UIWindow?
var screen: UIScreen?
func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
guard let windowScene = (scene as? UIWindowScene) else { return }
if session.role == .windowExternalDisplay {
let window = UIWindow(windowScene: windowScene)
let viewController = UIHostingController(rootView: UTMMainView(isInteractive: false))
window.rootViewController = viewController
self.window = window
window.isHidden = false
setupDisplayLinkIfNecessary()
}
}
func windowScene(_ windowScene: UIWindowScene, didUpdate previousCoordinateSpace: UICoordinateSpace, interfaceOrientation previousInterfaceOrientation: UIInterfaceOrientation, traitCollection previousTraitCollection: UITraitCollection) {
setupDisplayLinkIfNecessary()
}
weak var linkedScreen: UIScreen?
func setupDisplayLinkIfNecessary() {
let currentScreen = self.screen
if currentScreen != linkedScreen {
// Set up display link
self.linkedScreen = currentScreen
}
}
}