119 lines
3.9 KiB
Swift
119 lines
3.9 KiB
Swift
//
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/*
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* SwiftFin is subject to the terms of the Mozilla Public
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* License, v2.0. If a copy of the MPL was not distributed with this
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* file, you can obtain one at https://mozilla.org/MPL/2.0/.
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*
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* Copyright 2021 Aiden Vigue & Jellyfin Contributors
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*/
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import UIKit
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import SwiftUI
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// MARK: PreferenceUIHostingController
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class PreferenceUIHostingController: UIHostingController<AnyView> {
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init<V: View>(wrappedView: V) {
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let box = Box()
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super.init(rootView: AnyView(wrappedView
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.onPreferenceChange(PrefersHomeIndicatorAutoHiddenPreferenceKey.self) {
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box.value?._prefersHomeIndicatorAutoHidden = $0
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}.onPreferenceChange(SupportedOrientationsPreferenceKey.self) {
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box.value?._orientations = $0
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}.onPreferenceChange(ViewPreferenceKey.self) {
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box.value?._viewPreference = $0
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}))
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box.value = self
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}
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@objc dynamic required init?(coder aDecoder: NSCoder) {
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super.init(coder: aDecoder)
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super.modalPresentationStyle = .fullScreen
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}
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private class Box {
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weak var value: PreferenceUIHostingController?
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init() {}
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}
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// MARK: Prefers Home Indicator Auto Hidden
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public var _prefersHomeIndicatorAutoHidden = false {
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didSet { setNeedsUpdateOfHomeIndicatorAutoHidden() }
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}
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override var prefersHomeIndicatorAutoHidden: Bool {
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_prefersHomeIndicatorAutoHidden
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}
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// MARK: Lock orientation
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public var _orientations: UIInterfaceOrientationMask = .allButUpsideDown {
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didSet {
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if _orientations == .landscape {
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let value = UIInterfaceOrientation.landscapeRight.rawValue
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UIDevice.current.setValue(value, forKey: "orientation")
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UIViewController.attemptRotationToDeviceOrientation()
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}
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}
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}
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override var supportedInterfaceOrientations: UIInterfaceOrientationMask {
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_orientations
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}
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public var _viewPreference: UIUserInterfaceStyle = .unspecified {
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didSet {
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overrideUserInterfaceStyle = _viewPreference
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}
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}
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}
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// MARK: Preference Keys
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struct PrefersHomeIndicatorAutoHiddenPreferenceKey: PreferenceKey {
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typealias Value = Bool
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static var defaultValue: Value = false
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static func reduce(value: inout Value, nextValue: () -> Value) {
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value = nextValue() || value
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}
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}
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struct ViewPreferenceKey: PreferenceKey {
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typealias Value = UIUserInterfaceStyle
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static var defaultValue: UIUserInterfaceStyle = .unspecified
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static func reduce(value: inout UIUserInterfaceStyle, nextValue: () -> UIUserInterfaceStyle) {
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value = nextValue()
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}
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}
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struct SupportedOrientationsPreferenceKey: PreferenceKey {
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typealias Value = UIInterfaceOrientationMask
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static var defaultValue: UIInterfaceOrientationMask = .allButUpsideDown
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static func reduce(value: inout UIInterfaceOrientationMask, nextValue: () -> UIInterfaceOrientationMask) {
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// use the most restrictive set from the stack
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value.formIntersection(nextValue())
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}
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}
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// MARK: Preference Key View Extension
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extension View {
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// Controls the application's preferred home indicator auto-hiding when this view is shown.
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func prefersHomeIndicatorAutoHidden(_ value: Bool) -> some View {
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preference(key: PrefersHomeIndicatorAutoHiddenPreferenceKey.self, value: value)
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}
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func supportedOrientations(_ supportedOrientations: UIInterfaceOrientationMask) -> some View {
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// When rendered, export the requested orientations upward to Root
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preference(key: SupportedOrientationsPreferenceKey.self, value: supportedOrientations)
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}
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func overrideViewPreference(_ viewPreference: UIUserInterfaceStyle) -> some View {
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// When rendered, export the requested orientations upward to Root
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preference(key: ViewPreferenceKey.self, value: viewPreference)
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}
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}
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