124 lines
3.6 KiB
Swift
124 lines
3.6 KiB
Swift
//
|
|
// Copyright 2023 Signal Messenger, LLC
|
|
// SPDX-License-Identifier: AGPL-3.0-only
|
|
//
|
|
|
|
import SignalServiceKit
|
|
import UIKit
|
|
|
|
@MainActor
|
|
public protocol ScreenLockViewDelegate: AnyObject {
|
|
func unlockButtonWasTapped()
|
|
}
|
|
|
|
open class ScreenLockViewController: UIViewController {
|
|
|
|
public enum UIState: CustomStringConvertible {
|
|
case none
|
|
case screenProtection // Shown while app is inactive or background, if enabled.
|
|
case screenLock // Shown while app is active, if enabled.
|
|
|
|
public var description: String {
|
|
switch self {
|
|
case .none:
|
|
return "ScreenLockUIStateNone"
|
|
case .screenProtection:
|
|
return "ScreenLockUIStateScreenProtection"
|
|
case .screenLock:
|
|
return "ScreenLockUIStateScreenLock"
|
|
}
|
|
}
|
|
}
|
|
|
|
public weak var delegate: ScreenLockViewDelegate?
|
|
|
|
// MARK: - UI
|
|
|
|
private lazy var imageViewLogo = UIImageView(image: UIImage(named: "signal-logo-128-launch-screen"))
|
|
private static var buttonHeight: CGFloat { 40 }
|
|
private lazy var buttonUnlockUI = UIButton(
|
|
configuration: .largePrimary(title: OWSLocalizedString(
|
|
"SCREEN_LOCK_UNLOCK_SIGNAL",
|
|
comment: "Label for button on lock screen that lets users unlock Signal.",
|
|
)),
|
|
primaryAction: UIAction { [weak self] _ in
|
|
self?.unlockUIButtonTapped()
|
|
},
|
|
)
|
|
|
|
override open func viewDidLoad() {
|
|
super.viewDidLoad()
|
|
|
|
view.backgroundColor = UIColor.Signal.background
|
|
|
|
view.addSubview(imageViewLogo)
|
|
imageViewLogo.autoHCenterInSuperview()
|
|
imageViewLogo.autoVCenterInSuperview()
|
|
imageViewLogo.autoSetDimensions(to: .square(128))
|
|
|
|
buttonUnlockUI.configuration?.baseForegroundColor = .Signal.label
|
|
buttonUnlockUI.configuration?.baseBackgroundColor = .Signal.tertiaryFill
|
|
view.addSubview(buttonUnlockUI)
|
|
buttonUnlockUI.autoPinWidthToSuperview(withMargin: 50)
|
|
buttonUnlockUI.autoPinBottomToSuperviewMargin(withInset: 65)
|
|
|
|
updateUIWithState(.screenProtection)
|
|
}
|
|
|
|
// The "screen blocking" window has three possible states:
|
|
//
|
|
// * "Just a logo". Used when app is launching and in app switcher. Must
|
|
// match the "Launch Screen" storyboard pixel-for-pixel.
|
|
//
|
|
// * "Screen Lock, local auth UI presented".
|
|
//
|
|
// * "Screen Lock, local auth UI not presented". Show "unlock" button.
|
|
public func updateUIWithState(_ uiState: UIState) {
|
|
AssertIsOnMainThread()
|
|
|
|
guard isViewLoaded else { return }
|
|
|
|
let shouldShowBlockWindow = uiState != .none
|
|
let shouldHaveScreenLock = uiState == .screenLock
|
|
|
|
imageViewLogo.isHidden = !shouldShowBlockWindow
|
|
buttonUnlockUI.isHidden = !shouldHaveScreenLock
|
|
}
|
|
|
|
override open var supportedInterfaceOrientations: UIInterfaceOrientationMask {
|
|
UIDevice.current.defaultSupportedOrientations
|
|
}
|
|
|
|
private func unlockUIButtonTapped() {
|
|
delegate?.unlockButtonWasTapped()
|
|
}
|
|
}
|
|
|
|
#if DEBUG
|
|
|
|
@available(iOS 17, *)
|
|
#Preview("State: none") {
|
|
let vc = ScreenLockViewController()
|
|
vc.view.isHidden = false // force view to load
|
|
vc.updateUIWithState(.none)
|
|
return vc
|
|
}
|
|
|
|
@available(iOS 17, *)
|
|
#Preview("State: screenProtection") {
|
|
let vc = ScreenLockViewController()
|
|
vc.view.isHidden = false // force view to load
|
|
vc.updateUIWithState(.screenLock)
|
|
return vc
|
|
}
|
|
|
|
@available(iOS 17, *)
|
|
#Preview("State: screenLock") {
|
|
let vc = ScreenLockViewController()
|
|
vc.view.isHidden = false // force view to load
|
|
vc.updateUIWithState(.screenProtection)
|
|
return vc
|
|
}
|
|
|
|
#endif
|