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PreferencesModel.swift
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PreferencesModel.swift
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import SwiftUI
class PreferencesModel: ObservableObject {
private let defaults = UserDefaults.standard
let colorSchemeIntegerKey = "colorSchemeIntegerKey"
let defaultFontIntegerKey = "defaultFontIntegerKey"
/* We're stuck dropping into AppKit/UIKit to set light/dark schemes for now,
* because setting the .preferredColorScheme modifier on views in SwiftUI is
* currently unreliable.
*
* Feedback submitted to Apple:
*
* FB8382883: "On macOS 11β4, preferredColorScheme modifier does not respect .light ColorScheme"
* FB8383053: "On iOS 14β4/macOS 11β4, it is not possible to unset preferredColorScheme after setting
* it to either .light or .dark"
*/
#if os(iOS)
var window: UIWindow? {
guard let scene = UIApplication.shared.connectedScenes.first,
let windowSceneDelegate = scene.delegate as? UIWindowSceneDelegate,
let window = windowSceneDelegate.window else {
return nil
}
return window
}
#endif
@Published var selectedColorScheme: ColorScheme?
@Published var appearance: Int = 0 {
didSet {
switch appearance {
case 1:
// selectedColorScheme = .light
#if os(macOS)
NSApp.appearance = NSAppearance(named: .aqua)
#else
window?.overrideUserInterfaceStyle = .light
#endif
case 2:
// selectedColorScheme = .dark
#if os(macOS)
NSApp.appearance = NSAppearance(named: .darkAqua)
#else
window?.overrideUserInterfaceStyle = .dark
#endif
default:
// selectedColorScheme = .none
#if os(macOS)
NSApp.appearance = nil
#else
window?.overrideUserInterfaceStyle = .unspecified
#endif
}
defaults.set(appearance, forKey: colorSchemeIntegerKey)
}
}
@Published var font: Int = 0 {
didSet {
defaults.set(font, forKey: defaultFontIntegerKey)
}
}
}

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