1233 lines
50 KiB
Swift
1233 lines
50 KiB
Swift
//
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// Copyright (c) 2019 Open Whisper Systems. All rights reserved.
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//
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import Foundation
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import WebRTC
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import PromiseKit
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import SignalServiceKit
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import SignalMessaging
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// TODO: Add category so that button handlers can be defined where button is created.
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// TODO: Ensure buttons enabled & disabled as necessary.
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class CallViewController: OWSViewController, CallObserver, CallServiceObserver, CallAudioServiceDelegate {
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// Dependencies
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var callUIAdapter: CallUIAdapter {
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return AppEnvironment.shared.callService.callUIAdapter
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}
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var proximityMonitoringManager: OWSProximityMonitoringManager {
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return Environment.shared.proximityMonitoringManager
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}
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// Feature Flag
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@objc public static let kShowCallViewOnSeparateWindow = true
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let contactsManager: OWSContactsManager
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// MARK: - Properties
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let thread: TSContactThread
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let call: SignalCall
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var hasDismissed = false
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// MARK: - Views
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var hasConstraints = false
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var blurView: UIVisualEffectView!
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var dateFormatter: DateFormatter?
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// MARK: - Contact Views
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var contactNameLabel: MarqueeLabel!
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var contactAvatarView: AvatarImageView!
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var contactAvatarContainerView: UIView!
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var callStatusLabel: UILabel!
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var callDurationTimer: Timer?
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var leaveCallViewButton: UIButton!
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// MARK: - Ongoing Call Controls
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var ongoingCallControls: UIStackView!
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var ongoingAudioCallControls: UIStackView!
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var ongoingVideoCallControls: UIStackView!
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var hangUpButton: UIButton!
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var audioSourceButton: UIButton!
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var audioModeMuteButton: UIButton!
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var audioModeVideoButton: UIButton!
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var videoModeMuteButton: UIButton!
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var videoModeVideoButton: UIButton!
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var videoModeFlipCameraButton: UIButton!
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// MARK: - Incoming Call Controls
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var incomingCallControls: UIStackView!
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var acceptIncomingButton: UIButton!
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var declineIncomingButton: UIButton!
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// MARK: - Video Views
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var remoteVideoView: RemoteVideoView!
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var localVideoView: RTCCameraPreviewView!
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var hasShownLocalVideo = false
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weak var localCaptureSession: AVCaptureSession?
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weak var remoteVideoTrack: RTCVideoTrack?
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override public var canBecomeFirstResponder: Bool {
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return true
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}
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var shouldRemoteVideoControlsBeHidden = false {
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didSet {
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updateCallUI(callState: call.state)
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}
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}
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// MARK: - Settings Nag Views
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var isShowingSettingsNag = false {
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didSet {
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if oldValue != isShowingSettingsNag {
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updateCallUI(callState: call.state)
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}
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}
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}
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var settingsNagView: UIView!
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var settingsNagDescriptionLabel: UILabel!
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// MARK: - Audio Source
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var hasAlternateAudioSources: Bool {
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Logger.info("available audio sources: \(allAudioSources)")
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// internal mic and speakerphone will be the first two, any more than one indicates e.g. an attached bluetooth device.
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// TODO is this sufficient? Are their devices w/ bluetooth but no external speaker? e.g. ipod?
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return allAudioSources.count > 2
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}
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var allAudioSources: Set<AudioSource> = Set()
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var appropriateAudioSources: Set<AudioSource> {
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if call.hasLocalVideo {
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let appropriateForVideo = allAudioSources.filter { audioSource in
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if audioSource.isBuiltInSpeaker {
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return true
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} else {
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guard let portDescription = audioSource.portDescription else {
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owsFailDebug("Only built in speaker should be lacking a port description.")
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return false
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}
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// Don't use receiver when video is enabled. Only bluetooth or speaker
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return convertFromAVAudioSessionPort(portDescription.portType) != convertFromAVAudioSessionPort(AVAudioSession.Port.builtInMic)
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}
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}
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return Set(appropriateForVideo)
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} else {
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return allAudioSources
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}
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}
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// MARK: - Initializers
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@available(*, unavailable, message: "use init(call:) constructor instead.")
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required init?(coder aDecoder: NSCoder) {
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notImplemented()
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}
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required init(call: SignalCall) {
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contactsManager = Environment.shared.contactsManager
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self.call = call
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self.thread = TSContactThread.getOrCreateThread(contactId: call.remotePhoneNumber)
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super.init(nibName: nil, bundle: nil)
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allAudioSources = Set(callUIAdapter.audioService.availableInputs)
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self.shouldUseTheme = false
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}
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deinit {
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Logger.info("")
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NotificationCenter.default.removeObserver(self)
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self.proximityMonitoringManager.remove(lifetime: self)
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}
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@objc func didBecomeActive() {
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if (self.isViewLoaded) {
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shouldRemoteVideoControlsBeHidden = false
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}
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}
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// MARK: - View Lifecycle
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override func viewDidDisappear(_ animated: Bool) {
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super.viewDidDisappear(animated)
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callDurationTimer?.invalidate()
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callDurationTimer = nil
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}
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override func viewWillAppear(_ animated: Bool) {
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super.viewWillAppear(animated)
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ensureProximityMonitoring()
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updateCallUI(callState: call.state)
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self.becomeFirstResponder()
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}
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override func viewDidAppear(_ animated: Bool) {
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super.viewDidAppear(animated)
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self.becomeFirstResponder()
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}
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override func loadView() {
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self.view = UIView()
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self.view.backgroundColor = UIColor.black
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self.view.layoutMargins = UIEdgeInsets(top: 16, left: 20, bottom: 16, right: 20)
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createViews()
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createViewConstraints()
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}
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override func viewDidLoad() {
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super.viewDidLoad()
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contactNameLabel.text = contactsManager.stringForConversationTitle(withPhoneIdentifier: thread.contactIdentifier())
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updateAvatarImage()
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NotificationCenter.default.addObserver(forName: .OWSContactsManagerSignalAccountsDidChange, object: nil, queue: nil) { [weak self] _ in
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guard let strongSelf = self else { return }
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Logger.info("updating avatar image")
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strongSelf.updateAvatarImage()
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}
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// Subscribe for future call updates
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call.addObserverAndSyncState(observer: self)
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AppEnvironment.shared.callService.addObserverAndSyncState(observer: self)
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assert(callUIAdapter.audioService.delegate == nil)
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callUIAdapter.audioService.delegate = self
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NotificationCenter.default.addObserver(self,
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selector: #selector(didBecomeActive),
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name: NSNotification.Name.OWSApplicationDidBecomeActive,
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object: nil)
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}
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override var supportedInterfaceOrientations: UIInterfaceOrientationMask {
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return .portrait
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}
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override var preferredStatusBarStyle: UIStatusBarStyle {
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return .lightContent
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}
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// MARK: - Create Views
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func createViews() {
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self.view.isUserInteractionEnabled = true
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self.view.addGestureRecognizer(UITapGestureRecognizer(target: self,
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action: #selector(didTouchRootView)))
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videoHintView.delegate = self
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// Dark blurred background.
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let blurEffect = UIBlurEffect(style: .dark)
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blurView = UIVisualEffectView(effect: blurEffect)
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blurView.isUserInteractionEnabled = false
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self.view.addSubview(blurView)
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// Create the video views first, as they are under the other views.
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createVideoViews()
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createContactViews()
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createOngoingCallControls()
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createIncomingCallControls()
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createSettingsNagViews()
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}
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@objc func didTouchRootView(sender: UIGestureRecognizer) {
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if !remoteVideoView.isHidden {
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shouldRemoteVideoControlsBeHidden = !shouldRemoteVideoControlsBeHidden
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}
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}
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func createVideoViews() {
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remoteVideoView = RemoteVideoView()
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remoteVideoView.isUserInteractionEnabled = false
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localVideoView = RTCCameraPreviewView()
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remoteVideoView.isHidden = true
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localVideoView.isHidden = true
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self.view.addSubview(remoteVideoView)
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self.view.addSubview(localVideoView)
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}
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func createContactViews() {
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leaveCallViewButton = UIButton()
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let backButtonImage = CurrentAppContext().isRTL ? #imageLiteral(resourceName: "NavBarBackRTL") : #imageLiteral(resourceName: "NavBarBack")
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leaveCallViewButton.setImage(backButtonImage, for: .normal)
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leaveCallViewButton.autoSetDimensions(to: CGSize(width: 40, height: 40))
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leaveCallViewButton.addTarget(self, action: #selector(didTapLeaveCall(sender:)), for: .touchUpInside)
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self.view.addSubview(leaveCallViewButton)
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contactNameLabel = MarqueeLabel()
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// marquee config
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contactNameLabel.type = .continuous
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// This feels pretty slow when you're initially waiting for it, but when you're overlaying video calls, anything faster is distracting.
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contactNameLabel.speed = .duration(30.0)
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contactNameLabel.animationCurve = .linear
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contactNameLabel.fadeLength = 10.0
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contactNameLabel.animationDelay = 5
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// Add trailing space after the name scrolls before it wraps around and scrolls back in.
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contactNameLabel.trailingBuffer = ScaleFromIPhone5(80.0)
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// label config
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contactNameLabel.font = UIFont.ows_dynamicTypeTitle1
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contactNameLabel.textAlignment = .center
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contactNameLabel.textColor = UIColor.white
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contactNameLabel.layer.shadowOffset = CGSize.zero
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contactNameLabel.layer.shadowOpacity = 0.35
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contactNameLabel.layer.shadowRadius = 4
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self.view.addSubview(contactNameLabel)
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callStatusLabel = UILabel()
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callStatusLabel.font = UIFont.ows_dynamicTypeBody
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callStatusLabel.textAlignment = .center
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callStatusLabel.textColor = UIColor.white
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callStatusLabel.layer.shadowOffset = CGSize.zero
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callStatusLabel.layer.shadowOpacity = 0.35
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callStatusLabel.layer.shadowRadius = 4
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self.view.addSubview(callStatusLabel)
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contactAvatarContainerView = UIView.container()
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self.view.addSubview(contactAvatarContainerView)
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contactAvatarView = AvatarImageView()
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contactAvatarContainerView.addSubview(contactAvatarView)
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}
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func createSettingsNagViews() {
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settingsNagView = UIView()
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settingsNagView.isHidden = true
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self.view.addSubview(settingsNagView)
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let viewStack = UIView()
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settingsNagView.addSubview(viewStack)
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viewStack.autoPinWidthToSuperview()
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viewStack.autoVCenterInSuperview()
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settingsNagDescriptionLabel = UILabel()
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settingsNagDescriptionLabel.text = NSLocalizedString("CALL_VIEW_SETTINGS_NAG_DESCRIPTION_ALL",
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comment: "Reminder to the user of the benefits of enabling CallKit and disabling CallKit privacy.")
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settingsNagDescriptionLabel.font = UIFont.ows_regularFont(withSize: ScaleFromIPhone5To7Plus(16, 18))
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settingsNagDescriptionLabel.textColor = UIColor.white
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settingsNagDescriptionLabel.numberOfLines = 0
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settingsNagDescriptionLabel.lineBreakMode = .byWordWrapping
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viewStack.addSubview(settingsNagDescriptionLabel)
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settingsNagDescriptionLabel.autoPinWidthToSuperview()
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settingsNagDescriptionLabel.autoPinEdge(toSuperviewEdge: .top)
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let buttonHeight = ScaleFromIPhone5To7Plus(35, 45)
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let descriptionVSpacingHeight = ScaleFromIPhone5To7Plus(30, 60)
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let callSettingsButton = OWSFlatButton.button(title: NSLocalizedString("CALL_VIEW_SETTINGS_NAG_SHOW_CALL_SETTINGS",
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comment: "Label for button that shows the privacy settings."),
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font: OWSFlatButton.fontForHeight(buttonHeight),
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titleColor: UIColor.white,
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backgroundColor: UIColor.ows_signalBrandBlue,
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target: self,
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selector: #selector(didPressShowCallSettings))
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viewStack.addSubview(callSettingsButton)
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callSettingsButton.autoSetDimension(.height, toSize: buttonHeight)
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callSettingsButton.autoPinWidthToSuperview()
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callSettingsButton.autoPinEdge(.top, to: .bottom, of: settingsNagDescriptionLabel, withOffset: descriptionVSpacingHeight)
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let notNowButton = OWSFlatButton.button(title: NSLocalizedString("CALL_VIEW_SETTINGS_NAG_NOT_NOW_BUTTON",
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comment: "Label for button that dismiss the call view's settings nag."),
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font: OWSFlatButton.fontForHeight(buttonHeight),
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titleColor: UIColor.white,
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backgroundColor: UIColor.ows_signalBrandBlue,
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target: self,
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selector: #selector(didPressDismissNag))
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viewStack.addSubview(notNowButton)
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notNowButton.autoSetDimension(.height, toSize: buttonHeight)
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notNowButton.autoPinWidthToSuperview()
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notNowButton.autoPinEdge(toSuperviewEdge: .bottom)
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notNowButton.autoPinEdge(.top, to: .bottom, of: callSettingsButton, withOffset: 12)
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}
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func buttonSize() -> CGFloat {
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return ScaleFromIPhone5To7Plus(84, 108)
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}
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func buttonInset() -> CGFloat {
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return ScaleFromIPhone5To7Plus(7, 9)
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}
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func createOngoingCallControls() {
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audioSourceButton = createButton(image: #imageLiteral(resourceName: "audio-call-speaker-inactive"),
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action: #selector(didPressAudioSource))
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audioSourceButton.accessibilityLabel = NSLocalizedString("CALL_VIEW_AUDIO_SOURCE_LABEL",
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comment: "Accessibility label for selection the audio source")
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hangUpButton = createButton(image: #imageLiteral(resourceName: "hangup-active-wide"),
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action: #selector(didPressHangup))
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hangUpButton.accessibilityLabel = NSLocalizedString("CALL_VIEW_HANGUP_LABEL",
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comment: "Accessibility label for hang up call")
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audioModeMuteButton = createButton(image: #imageLiteral(resourceName: "audio-call-mute-inactive"),
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action: #selector(didPressMute))
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audioModeMuteButton.setImage(#imageLiteral(resourceName: "audio-call-mute-active"), for: .selected)
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audioModeMuteButton.accessibilityLabel = NSLocalizedString("CALL_VIEW_MUTE_LABEL",
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comment: "Accessibility label for muting the microphone")
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audioModeVideoButton = createButton(image: #imageLiteral(resourceName: "audio-call-video-inactive"),
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action: #selector(didPressVideo))
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audioModeVideoButton.setImage(#imageLiteral(resourceName: "audio-call-video-active"), for: .selected)
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audioModeVideoButton.accessibilityLabel = NSLocalizedString("CALL_VIEW_SWITCH_TO_VIDEO_LABEL", comment: "Accessibility label to switch to video call")
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videoModeMuteButton = createButton(image: #imageLiteral(resourceName: "video-mute-unselected"),
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action: #selector(didPressMute))
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videoModeMuteButton.setImage(#imageLiteral(resourceName: "video-mute-selected"), for: .selected)
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videoModeMuteButton.accessibilityLabel = NSLocalizedString("CALL_VIEW_MUTE_LABEL", comment: "Accessibility label for muting the microphone")
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videoModeMuteButton.alpha = 0.9
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videoModeFlipCameraButton = createButton(image: #imageLiteral(resourceName: "video-switch-camera-unselected"),
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action: #selector(didPressFlipCamera))
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videoModeFlipCameraButton.accessibilityLabel = NSLocalizedString("CALL_VIEW_SWITCH_CAMERA_DIRECTION", comment: "Accessibility label to toggle front- vs. rear-facing camera")
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videoModeFlipCameraButton.alpha = 0.9
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videoModeVideoButton = createButton(image: #imageLiteral(resourceName: "video-video-unselected"),
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action: #selector(didPressVideo))
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videoModeVideoButton.setImage(#imageLiteral(resourceName: "video-video-selected"), for: .selected)
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videoModeVideoButton.accessibilityLabel = NSLocalizedString("CALL_VIEW_SWITCH_TO_AUDIO_LABEL", comment: "Accessibility label to switch to audio only")
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videoModeVideoButton.alpha = 0.9
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ongoingCallControls = UIStackView(arrangedSubviews: [hangUpButton])
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ongoingCallControls.axis = .vertical
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ongoingCallControls.alignment = .center
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view.addSubview(ongoingCallControls)
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ongoingAudioCallControls = UIStackView(arrangedSubviews: [audioModeMuteButton, audioSourceButton, audioModeVideoButton])
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ongoingAudioCallControls.distribution = .equalSpacing
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ongoingAudioCallControls.axis = .horizontal
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ongoingVideoCallControls = UIStackView(arrangedSubviews: [videoModeMuteButton, videoModeFlipCameraButton, videoModeVideoButton])
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ongoingAudioCallControls.distribution = .equalSpacing
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ongoingVideoCallControls.axis = .horizontal
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}
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func presentAudioSourcePicker() {
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AssertIsOnMainThread()
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let actionSheetController = UIAlertController(title: nil, message: nil, preferredStyle: .actionSheet)
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let dismissAction = UIAlertAction(title: CommonStrings.dismissButton, style: .cancel, handler: nil)
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actionSheetController.addAction(dismissAction)
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let currentAudioSource = callUIAdapter.audioService.currentAudioSource(call: self.call)
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for audioSource in self.appropriateAudioSources {
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let routeAudioAction = UIAlertAction(title: audioSource.localizedName, style: .default) { _ in
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self.callUIAdapter.setAudioSource(call: self.call, audioSource: audioSource)
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}
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// HACK: private API to create checkmark for active audio source.
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routeAudioAction.setValue(currentAudioSource == audioSource, forKey: "checked")
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// TODO: pick some icons. Leaving out for MVP
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// HACK: private API to add image to actionsheet
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// routeAudioAction.setValue(audioSource.image, forKey: "image")
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actionSheetController.addAction(routeAudioAction)
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}
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// Note: It's critical that we present from this view and
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// not the "frontmost view controller" since this view may
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// reside on a separate window.
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presentAlert(actionSheetController)
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}
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func updateAvatarImage() {
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contactAvatarView.image = OWSAvatarBuilder.buildImage(thread: thread, diameter: 400)
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}
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func createIncomingCallControls() {
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acceptIncomingButton = createButton(image: #imageLiteral(resourceName: "call-active-wide"),
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action: #selector(didPressAnswerCall))
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acceptIncomingButton.accessibilityLabel = NSLocalizedString("CALL_VIEW_ACCEPT_INCOMING_CALL_LABEL",
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comment: "Accessibility label for accepting incoming calls")
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declineIncomingButton = createButton(image: #imageLiteral(resourceName: "hangup-active-wide"),
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action: #selector(didPressDeclineCall))
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declineIncomingButton.accessibilityLabel = NSLocalizedString("CALL_VIEW_DECLINE_INCOMING_CALL_LABEL",
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comment: "Accessibility label for declining incoming calls")
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incomingCallControls = UIStackView(arrangedSubviews: [acceptIncomingButton, declineIncomingButton])
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incomingCallControls.axis = .horizontal
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incomingCallControls.alignment = .center
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incomingCallControls.distribution = .equalSpacing
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view.addSubview(incomingCallControls)
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}
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func createButton(image: UIImage, action: Selector) -> UIButton {
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let button = UIButton()
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button.setImage(image, for: .normal)
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button.imageEdgeInsets = UIEdgeInsets(top: buttonInset(),
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left: buttonInset(),
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bottom: buttonInset(),
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right: buttonInset())
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button.addTarget(self, action: action, for: .touchUpInside)
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button.autoSetDimension(.width, toSize: buttonSize())
|
|
button.autoSetDimension(.height, toSize: buttonSize())
|
|
return button
|
|
}
|
|
|
|
// MARK: - Layout
|
|
|
|
var localVideoViewTopConstraintDefault: NSLayoutConstraint!
|
|
var localVideoViewTopConstraintHidden: NSLayoutConstraint!
|
|
|
|
func createViewConstraints() {
|
|
|
|
let contactVSpacing = CGFloat(3)
|
|
let settingsNagHMargin = CGFloat(30)
|
|
let ongoingBottomMargin = ScaleFromIPhone5To7Plus(23, 41)
|
|
let incomingHMargin = ScaleFromIPhone5To7Plus(30, 56)
|
|
let incomingBottomMargin = CGFloat(41)
|
|
let settingsNagBottomMargin = CGFloat(41)
|
|
let avatarTopSpacing = ScaleFromIPhone5To7Plus(25, 50)
|
|
// The buttons have built-in 10% margins, so to appear centered
|
|
// the avatar's bottom spacing should be a bit less.
|
|
let avatarBottomSpacing = ScaleFromIPhone5To7Plus(18, 41)
|
|
// Layout of the local video view is a bit unusual because
|
|
// although the view is square, it will be used
|
|
let videoPreviewHMargin = CGFloat(0)
|
|
|
|
// Dark blurred background.
|
|
blurView.autoPinEdgesToSuperviewEdges()
|
|
|
|
leaveCallViewButton.autoPinEdge(toSuperviewEdge: .leading)
|
|
|
|
if #available(iOS 11, *) {
|
|
leaveCallViewButton.autoPinEdge(toSuperviewMargin: .top)
|
|
contactNameLabel.autoPinEdge(toSuperviewMargin: .top)
|
|
} else {
|
|
leaveCallViewButton.autoPin(toTopLayoutGuideOf: self, withInset: 0)
|
|
contactNameLabel.autoPin(toTopLayoutGuideOf: self, withInset: 0)
|
|
}
|
|
|
|
contactNameLabel.autoPinEdge(.leading, to: .trailing, of: leaveCallViewButton, withOffset: 8, relation: .greaterThanOrEqual)
|
|
contactNameLabel.autoHCenterInSuperview()
|
|
contactNameLabel.setContentHuggingVerticalHigh()
|
|
contactNameLabel.setCompressionResistanceHigh()
|
|
|
|
callStatusLabel.autoPinEdge(.top, to: .bottom, of: contactNameLabel, withOffset: contactVSpacing)
|
|
callStatusLabel.autoHCenterInSuperview()
|
|
callStatusLabel.setContentHuggingVerticalHigh()
|
|
callStatusLabel.setCompressionResistanceHigh()
|
|
|
|
localVideoView.autoPinTrailingToSuperviewMargin(withInset: videoPreviewHMargin)
|
|
|
|
self.localVideoViewTopConstraintDefault = localVideoView.autoPinEdge(.top, to: .bottom, of: callStatusLabel, withOffset: 4)
|
|
self.localVideoViewTopConstraintHidden = localVideoView.autoPinEdge(toSuperviewMargin: .top)
|
|
let localVideoSize = ScaleFromIPhone5To7Plus(80, 100)
|
|
localVideoView.autoSetDimension(.width, toSize: localVideoSize)
|
|
localVideoView.autoSetDimension(.height, toSize: localVideoSize)
|
|
|
|
remoteVideoView.autoPinEdgesToSuperviewEdges()
|
|
|
|
contactAvatarContainerView.autoPinEdge(.top, to: .bottom, of: callStatusLabel, withOffset: +avatarTopSpacing)
|
|
contactAvatarContainerView.autoPinEdge(.bottom, to: .top, of: ongoingCallControls, withOffset: -avatarBottomSpacing)
|
|
contactAvatarContainerView.autoPinWidthToSuperview(withMargin: avatarTopSpacing)
|
|
|
|
contactAvatarView.autoCenterInSuperview()
|
|
|
|
// Ensure ContacAvatarView gets as close as possible to it's superview edges while maintaining
|
|
// aspect ratio.
|
|
contactAvatarView.autoPinToSquareAspectRatio()
|
|
contactAvatarView.autoPinEdge(toSuperviewEdge: .top, withInset: 0, relation: .greaterThanOrEqual)
|
|
contactAvatarView.autoPinEdge(toSuperviewEdge: .right, withInset: 0, relation: .greaterThanOrEqual)
|
|
contactAvatarView.autoPinEdge(toSuperviewEdge: .bottom, withInset: 0, relation: .greaterThanOrEqual)
|
|
contactAvatarView.autoPinEdge(toSuperviewEdge: .left, withInset: 0, relation: .greaterThanOrEqual)
|
|
NSLayoutConstraint.autoSetPriority(UILayoutPriority.defaultLow) {
|
|
contactAvatarView.autoPinEdgesToSuperviewMargins()
|
|
}
|
|
|
|
// Ongoing call controls
|
|
ongoingCallControls.autoPinEdge(toSuperviewEdge: .bottom, withInset: ongoingBottomMargin)
|
|
ongoingCallControls.autoPinLeadingToSuperviewMargin()
|
|
ongoingCallControls.autoPinTrailingToSuperviewMargin()
|
|
ongoingCallControls.setContentHuggingVerticalHigh()
|
|
|
|
// Incoming call controls
|
|
incomingCallControls.autoPinEdge(toSuperviewEdge: .bottom, withInset: incomingBottomMargin)
|
|
incomingCallControls.autoPinLeadingToSuperviewMargin(withInset: incomingHMargin)
|
|
incomingCallControls.autoPinTrailingToSuperviewMargin(withInset: incomingHMargin)
|
|
incomingCallControls.setContentHuggingVerticalHigh()
|
|
|
|
// Settings nag views
|
|
settingsNagView.autoPinEdge(toSuperviewEdge: .bottom, withInset: settingsNagBottomMargin)
|
|
settingsNagView.autoPinWidthToSuperview(withMargin: settingsNagHMargin)
|
|
settingsNagView.autoPinEdge(.top, to: .bottom, of: callStatusLabel)
|
|
}
|
|
|
|
override func updateViewConstraints() {
|
|
updateRemoteVideoLayout()
|
|
updateLocalVideoLayout()
|
|
|
|
super.updateViewConstraints()
|
|
}
|
|
|
|
internal func updateRemoteVideoLayout() {
|
|
remoteVideoView.isHidden = !self.hasRemoteVideoTrack
|
|
updateCallUI(callState: call.state)
|
|
}
|
|
|
|
let videoHintView = CallVideoHintView()
|
|
|
|
internal func updateLocalVideoLayout() {
|
|
if !localVideoView.isHidden {
|
|
localVideoView.superview?.bringSubviewToFront(localVideoView)
|
|
}
|
|
|
|
updateCallUI(callState: call.state)
|
|
}
|
|
|
|
// MARK: - Methods
|
|
|
|
func showCallFailed(error: Error) {
|
|
// TODO Show something in UI.
|
|
Logger.error("call failed with error: \(error)")
|
|
}
|
|
|
|
// MARK: - View State
|
|
|
|
func localizedTextForCallState(_ callState: CallState) -> String {
|
|
assert(Thread.isMainThread)
|
|
|
|
switch callState {
|
|
case .idle, .remoteHangup, .localHangup:
|
|
return NSLocalizedString("IN_CALL_TERMINATED", comment: "Call setup status label")
|
|
case .dialing:
|
|
return NSLocalizedString("IN_CALL_CONNECTING", comment: "Call setup status label")
|
|
case .remoteRinging, .localRinging:
|
|
return NSLocalizedString("IN_CALL_RINGING", comment: "Call setup status label")
|
|
case .answering:
|
|
return NSLocalizedString("IN_CALL_SECURING", comment: "Call setup status label")
|
|
case .connected:
|
|
let callDuration = call.connectionDuration()
|
|
let callDurationDate = Date(timeIntervalSinceReferenceDate: callDuration)
|
|
if dateFormatter == nil {
|
|
dateFormatter = DateFormatter()
|
|
dateFormatter!.dateFormat = "HH:mm:ss"
|
|
dateFormatter!.timeZone = TimeZone(identifier: "UTC")!
|
|
}
|
|
var formattedDate = dateFormatter!.string(from: callDurationDate)
|
|
if formattedDate.hasPrefix("00:") {
|
|
// Don't show the "hours" portion of the date format unless the
|
|
// call duration is at least 1 hour.
|
|
formattedDate = String(formattedDate[formattedDate.index(formattedDate.startIndex, offsetBy: 3)...])
|
|
} else {
|
|
// If showing the "hours" portion of the date format, strip any leading
|
|
// zeroes.
|
|
if formattedDate.hasPrefix("0") {
|
|
formattedDate = String(formattedDate[formattedDate.index(formattedDate.startIndex, offsetBy: 1)...])
|
|
}
|
|
}
|
|
return formattedDate
|
|
case .reconnecting:
|
|
return NSLocalizedString("IN_CALL_RECONNECTING", comment: "Call setup status label")
|
|
case .remoteBusy:
|
|
return NSLocalizedString("END_CALL_RESPONDER_IS_BUSY", comment: "Call setup status label")
|
|
case .localFailure:
|
|
if let error = call.error {
|
|
switch error {
|
|
case .timeout(description: _):
|
|
if self.call.direction == .outgoing {
|
|
return NSLocalizedString("CALL_SCREEN_STATUS_NO_ANSWER", comment: "Call setup status label after outgoing call times out")
|
|
}
|
|
default:
|
|
break
|
|
}
|
|
}
|
|
|
|
return NSLocalizedString("END_CALL_UNCATEGORIZED_FAILURE", comment: "Call setup status label")
|
|
}
|
|
}
|
|
|
|
var isBlinkingReconnectLabel = false
|
|
func updateCallStatusLabel(callState: CallState) {
|
|
assert(Thread.isMainThread)
|
|
|
|
let text = String(format: CallStrings.callStatusFormat,
|
|
localizedTextForCallState(callState))
|
|
self.callStatusLabel.text = text
|
|
|
|
// Handle reconnecting blinking
|
|
if case .reconnecting = callState {
|
|
if !isBlinkingReconnectLabel {
|
|
isBlinkingReconnectLabel = true
|
|
UIView.animate(withDuration: 0.7, delay: 0, options: [.autoreverse, .repeat],
|
|
animations: {
|
|
self.callStatusLabel.alpha = 0.2
|
|
}, completion: nil)
|
|
} else {
|
|
// already blinking
|
|
}
|
|
} else {
|
|
// We're no longer in a reconnecting state, either the call failed or we reconnected.
|
|
// Stop the blinking animation
|
|
if isBlinkingReconnectLabel {
|
|
self.callStatusLabel.layer.removeAllAnimations()
|
|
self.callStatusLabel.alpha = 1
|
|
isBlinkingReconnectLabel = false
|
|
}
|
|
}
|
|
}
|
|
|
|
func updateCallUI(callState: CallState) {
|
|
assert(Thread.isMainThread)
|
|
updateCallStatusLabel(callState: callState)
|
|
if isShowingSettingsNag {
|
|
settingsNagView.isHidden = false
|
|
contactAvatarView.isHidden = true
|
|
ongoingCallControls.isHidden = true
|
|
return
|
|
}
|
|
|
|
// Marquee scrolling is distracting during a video call, disable it.
|
|
contactNameLabel.labelize = call.hasLocalVideo
|
|
|
|
audioModeMuteButton.isSelected = call.isMuted
|
|
videoModeMuteButton.isSelected = call.isMuted
|
|
audioModeVideoButton.isSelected = call.hasLocalVideo
|
|
videoModeVideoButton.isSelected = call.hasLocalVideo
|
|
|
|
// Show Incoming vs. Ongoing call controls
|
|
let isRinging = callState == .localRinging
|
|
incomingCallControls.isHidden = !isRinging
|
|
incomingCallControls.isUserInteractionEnabled = isRinging
|
|
ongoingCallControls.isHidden = isRinging
|
|
ongoingCallControls.isUserInteractionEnabled = !isRinging
|
|
|
|
// Rework control state if remote video is available.
|
|
let hasRemoteVideo = !remoteVideoView.isHidden
|
|
contactAvatarView.isHidden = hasRemoteVideo
|
|
|
|
// Rework control state if local video is available.
|
|
let hasLocalVideo = !localVideoView.isHidden
|
|
|
|
if hasLocalVideo {
|
|
ongoingAudioCallControls.removeFromSuperview()
|
|
ongoingCallControls.insertArrangedSubview(ongoingVideoCallControls, at: 0)
|
|
} else {
|
|
ongoingVideoCallControls.removeFromSuperview()
|
|
ongoingCallControls.insertArrangedSubview(ongoingAudioCallControls, at: 0)
|
|
}
|
|
// Layout immediately to avoid spurious animation.
|
|
ongoingCallControls.layoutIfNeeded()
|
|
|
|
// Also hide other controls if user has tapped to hide them.
|
|
if shouldRemoteVideoControlsBeHidden && !remoteVideoView.isHidden {
|
|
leaveCallViewButton.isHidden = true
|
|
contactNameLabel.isHidden = true
|
|
callStatusLabel.isHidden = true
|
|
ongoingCallControls.isHidden = true
|
|
videoHintView.isHidden = true
|
|
} else {
|
|
leaveCallViewButton.isHidden = false
|
|
contactNameLabel.isHidden = false
|
|
callStatusLabel.isHidden = false
|
|
|
|
if hasRemoteVideo && !hasLocalVideo && !hasShownLocalVideo && !hasUserDismissedVideoHint {
|
|
view.addSubview(videoHintView)
|
|
videoHintView.isHidden = false
|
|
videoHintView.autoPinEdge(.bottom, to: .top, of: audioModeVideoButton)
|
|
videoHintView.autoPinEdge(.trailing, to: .leading, of: audioModeVideoButton, withOffset: buttonSize() / 2 + videoHintView.kTailHMargin + videoHintView.kTailWidth / 2)
|
|
} else {
|
|
videoHintView.removeFromSuperview()
|
|
}
|
|
}
|
|
|
|
let doLocalVideoLayout = {
|
|
self.localVideoViewTopConstraintDefault.isActive = !self.contactNameLabel.isHidden
|
|
self.localVideoViewTopConstraintHidden.isActive = self.contactNameLabel.isHidden
|
|
self.localVideoView.superview?.layoutIfNeeded()
|
|
}
|
|
if hasShownLocalVideo {
|
|
// Animate.
|
|
UIView.animate(withDuration: 0.25, animations: doLocalVideoLayout)
|
|
} else {
|
|
// Don't animate.
|
|
doLocalVideoLayout()
|
|
}
|
|
|
|
// Audio Source Handling (bluetooth)
|
|
if self.hasAlternateAudioSources {
|
|
// With bluetooth, button does not stay selected. Pressing it pops an actionsheet
|
|
// and the button should immediately "unselect".
|
|
audioSourceButton.isSelected = false
|
|
|
|
if hasLocalVideo {
|
|
audioSourceButton.setImage(#imageLiteral(resourceName: "ic_speaker_bluetooth_inactive_video_mode"), for: .normal)
|
|
audioSourceButton.setImage(#imageLiteral(resourceName: "ic_speaker_bluetooth_inactive_video_mode"), for: .selected)
|
|
} else {
|
|
audioSourceButton.setImage(#imageLiteral(resourceName: "ic_speaker_bluetooth_inactive_audio_mode"), for: .normal)
|
|
audioSourceButton.setImage(#imageLiteral(resourceName: "ic_speaker_bluetooth_inactive_audio_mode"), for: .selected)
|
|
}
|
|
audioSourceButton.isHidden = false
|
|
} else {
|
|
// No bluetooth audio detected
|
|
audioSourceButton.setImage(#imageLiteral(resourceName: "audio-call-speaker-inactive"), for: .normal)
|
|
audioSourceButton.setImage(#imageLiteral(resourceName: "audio-call-speaker-active"), for: .selected)
|
|
|
|
// If there's no bluetooth, we always use speakerphone, so no need for
|
|
// a button, giving more screen back for the video.
|
|
audioSourceButton.isHidden = hasLocalVideo
|
|
}
|
|
|
|
// Dismiss Handling
|
|
switch callState {
|
|
case .remoteHangup, .remoteBusy, .localFailure:
|
|
Logger.debug("dismissing after delay because new state is \(callState)")
|
|
dismissIfPossible(shouldDelay: true)
|
|
case .localHangup:
|
|
Logger.debug("dismissing immediately from local hangup")
|
|
dismissIfPossible(shouldDelay: false)
|
|
default: break
|
|
}
|
|
|
|
if callState == .connected {
|
|
if callDurationTimer == nil {
|
|
let kDurationUpdateFrequencySeconds = 1 / 20.0
|
|
callDurationTimer = WeakTimer.scheduledTimer(timeInterval: TimeInterval(kDurationUpdateFrequencySeconds),
|
|
target: self,
|
|
userInfo: nil,
|
|
repeats: true) {[weak self] _ in
|
|
self?.updateCallDuration()
|
|
}
|
|
}
|
|
} else {
|
|
callDurationTimer?.invalidate()
|
|
callDurationTimer = nil
|
|
}
|
|
}
|
|
|
|
func updateCallDuration() {
|
|
updateCallStatusLabel(callState: call.state)
|
|
}
|
|
|
|
// We update the audioSourceButton outside of the main `updateCallUI`
|
|
// because `updateCallUI` is intended to be idempotent, which isn't possible
|
|
// with external speaker state because:
|
|
// - the system API which enables the external speaker is a (somewhat slow) asyncronous
|
|
// operation
|
|
// - we want to give immediate UI feedback by marking the pressed button as selected
|
|
// before the operation completes.
|
|
func updateAudioSourceButtonIsSelected() {
|
|
guard callUIAdapter.audioService.isSpeakerphoneEnabled else {
|
|
self.audioSourceButton.isSelected = false
|
|
return
|
|
}
|
|
|
|
// VideoChat mode enables the output speaker, but we don't
|
|
// want to highlight the speaker button in that case.
|
|
guard !call.hasLocalVideo else {
|
|
self.audioSourceButton.isSelected = false
|
|
return
|
|
}
|
|
|
|
self.audioSourceButton.isSelected = true
|
|
}
|
|
|
|
// MARK: - Actions
|
|
|
|
/**
|
|
* Ends a connected call. Do not confuse with `didPressDeclineCall`.
|
|
*/
|
|
@objc func didPressHangup(sender: UIButton) {
|
|
Logger.info("")
|
|
|
|
callUIAdapter.localHangupCall(call)
|
|
|
|
dismissIfPossible(shouldDelay: false)
|
|
}
|
|
|
|
@objc func didPressMute(sender muteButton: UIButton) {
|
|
Logger.info("")
|
|
muteButton.isSelected = !muteButton.isSelected
|
|
|
|
callUIAdapter.setIsMuted(call: call, isMuted: muteButton.isSelected)
|
|
}
|
|
|
|
@objc func didPressAudioSource(sender button: UIButton) {
|
|
Logger.info("")
|
|
|
|
if self.hasAlternateAudioSources {
|
|
presentAudioSourcePicker()
|
|
} else {
|
|
didPressSpeakerphone(sender: button)
|
|
}
|
|
}
|
|
|
|
func didPressSpeakerphone(sender button: UIButton) {
|
|
Logger.info("")
|
|
|
|
button.isSelected = !button.isSelected
|
|
callUIAdapter.audioService.requestSpeakerphone(isEnabled: button.isSelected)
|
|
}
|
|
|
|
func didPressTextMessage(sender button: UIButton) {
|
|
Logger.info("")
|
|
|
|
dismissIfPossible(shouldDelay: false)
|
|
}
|
|
|
|
@objc func didPressAnswerCall(sender: UIButton) {
|
|
Logger.info("")
|
|
|
|
callUIAdapter.answerCall(call)
|
|
}
|
|
|
|
@objc func didPressVideo(sender: UIButton) {
|
|
Logger.info("")
|
|
let hasLocalVideo = !sender.isSelected
|
|
|
|
callUIAdapter.setHasLocalVideo(call: call, hasLocalVideo: hasLocalVideo)
|
|
}
|
|
|
|
@objc func didPressFlipCamera(sender: UIButton) {
|
|
sender.isSelected = !sender.isSelected
|
|
|
|
let isUsingFrontCamera = !sender.isSelected
|
|
Logger.info("with isUsingFrontCamera: \(isUsingFrontCamera)")
|
|
|
|
callUIAdapter.setCameraSource(call: call, isUsingFrontCamera: isUsingFrontCamera)
|
|
}
|
|
|
|
/**
|
|
* Denies an incoming not-yet-connected call, Do not confuse with `didPressHangup`.
|
|
*/
|
|
@objc func didPressDeclineCall(sender: UIButton) {
|
|
Logger.info("")
|
|
|
|
callUIAdapter.declineCall(call)
|
|
|
|
dismissIfPossible(shouldDelay: false)
|
|
}
|
|
|
|
@objc func didPressShowCallSettings(sender: UIButton) {
|
|
Logger.info("")
|
|
|
|
markSettingsNagAsComplete()
|
|
|
|
dismissIfPossible(shouldDelay: false, ignoreNag: true, completion: {
|
|
// Find the frontmost presented UIViewController from which to present the
|
|
// settings views.
|
|
let fromViewController = UIApplication.shared.findFrontmostViewController(ignoringAlerts: true)
|
|
assert(fromViewController != nil)
|
|
|
|
// Construct the "settings" view & push the "privacy settings" view.
|
|
let navigationController = AppSettingsViewController.inModalNavigationController()
|
|
navigationController.pushViewController(PrivacySettingsTableViewController(), animated: false)
|
|
|
|
fromViewController?.present(navigationController, animated: true, completion: nil)
|
|
})
|
|
}
|
|
|
|
@objc func didPressDismissNag(sender: UIButton) {
|
|
Logger.info("")
|
|
|
|
markSettingsNagAsComplete()
|
|
|
|
dismissIfPossible(shouldDelay: false, ignoreNag: true)
|
|
}
|
|
|
|
// We only show the "blocking" settings nag until the user has chosen
|
|
// to view the privacy settings _or_ dismissed the nag at least once.
|
|
//
|
|
// In either case, we set the "CallKit enabled" and "CallKit privacy enabled"
|
|
// settings to their default values to indicate that the user has reviewed
|
|
// them.
|
|
private func markSettingsNagAsComplete() {
|
|
Logger.info("")
|
|
|
|
let preferences = Environment.shared.preferences!
|
|
|
|
preferences.setIsCallKitEnabled(preferences.isCallKitEnabled())
|
|
preferences.setIsCallKitPrivacyEnabled(preferences.isCallKitPrivacyEnabled())
|
|
}
|
|
|
|
@objc func didTapLeaveCall(sender: UIButton) {
|
|
OWSWindowManager.shared().leaveCallView()
|
|
}
|
|
|
|
// MARK: - CallObserver
|
|
|
|
internal func stateDidChange(call: SignalCall, state: CallState) {
|
|
AssertIsOnMainThread()
|
|
Logger.info("new call status: \(state)")
|
|
|
|
self.updateCallUI(callState: state)
|
|
}
|
|
|
|
internal func hasLocalVideoDidChange(call: SignalCall, hasLocalVideo: Bool) {
|
|
AssertIsOnMainThread()
|
|
self.updateCallUI(callState: call.state)
|
|
}
|
|
|
|
internal func muteDidChange(call: SignalCall, isMuted: Bool) {
|
|
AssertIsOnMainThread()
|
|
self.updateCallUI(callState: call.state)
|
|
}
|
|
|
|
func holdDidChange(call: SignalCall, isOnHold: Bool) {
|
|
AssertIsOnMainThread()
|
|
self.updateCallUI(callState: call.state)
|
|
}
|
|
|
|
internal func audioSourceDidChange(call: SignalCall, audioSource: AudioSource?) {
|
|
AssertIsOnMainThread()
|
|
self.updateCallUI(callState: call.state)
|
|
}
|
|
|
|
// MARK: - CallAudioServiceDelegate
|
|
|
|
func callAudioService(_ callAudioService: CallAudioService, didUpdateIsSpeakerphoneEnabled isSpeakerphoneEnabled: Bool) {
|
|
AssertIsOnMainThread()
|
|
|
|
updateAudioSourceButtonIsSelected()
|
|
}
|
|
|
|
func callAudioServiceDidChangeAudioSession(_ callAudioService: CallAudioService) {
|
|
AssertIsOnMainThread()
|
|
|
|
// Which sources are available depends on the state of your Session.
|
|
// When the audio session is not yet in PlayAndRecord none are available
|
|
// Then if we're in speakerphone, bluetooth isn't available.
|
|
// So we accrue all possible audio sources in a set, and that list lives as longs as the CallViewController
|
|
// The downside of this is that if you e.g. unpair your bluetooth mid call, it will still appear as an option
|
|
// until your next call.
|
|
// FIXME: There's got to be a better way, but this is where I landed after a bit of work, and seems to work
|
|
// pretty well in practice.
|
|
let availableInputs = callAudioService.availableInputs
|
|
self.allAudioSources.formUnion(availableInputs)
|
|
}
|
|
|
|
// MARK: - Video
|
|
|
|
internal func updateLocalVideo(captureSession: AVCaptureSession?) {
|
|
|
|
AssertIsOnMainThread()
|
|
|
|
guard localVideoView.captureSession != captureSession else {
|
|
Logger.debug("ignoring redundant update")
|
|
return
|
|
}
|
|
|
|
localVideoView.captureSession = captureSession
|
|
let isHidden = captureSession == nil
|
|
|
|
Logger.info("isHidden: \(isHidden)")
|
|
localVideoView.isHidden = isHidden
|
|
|
|
updateLocalVideoLayout()
|
|
updateAudioSourceButtonIsSelected()
|
|
|
|
// Don't animate layout of local video view until it has been presented.
|
|
if !isHidden {
|
|
hasShownLocalVideo = true
|
|
}
|
|
}
|
|
|
|
var hasRemoteVideoTrack: Bool {
|
|
return self.remoteVideoTrack != nil
|
|
}
|
|
|
|
var hasUserDismissedVideoHint: Bool = false
|
|
|
|
internal func updateRemoteVideoTrack(remoteVideoTrack: RTCVideoTrack?) {
|
|
AssertIsOnMainThread()
|
|
|
|
guard self.remoteVideoTrack != remoteVideoTrack else {
|
|
Logger.debug("ignoring redundant update")
|
|
return
|
|
}
|
|
|
|
self.remoteVideoTrack?.remove(remoteVideoView)
|
|
self.remoteVideoTrack = nil
|
|
remoteVideoView.renderFrame(nil)
|
|
self.remoteVideoTrack = remoteVideoTrack
|
|
self.remoteVideoTrack?.add(remoteVideoView)
|
|
|
|
shouldRemoteVideoControlsBeHidden = false
|
|
|
|
if remoteVideoTrack != nil {
|
|
playRemoteEnabledVideoHapticFeedback()
|
|
}
|
|
|
|
updateRemoteVideoLayout()
|
|
}
|
|
|
|
// MARK: Video Haptics
|
|
|
|
let feedbackGenerator = NotificationHapticFeedback()
|
|
var lastHapticTime: TimeInterval = CACurrentMediaTime()
|
|
func playRemoteEnabledVideoHapticFeedback() {
|
|
let currentTime = CACurrentMediaTime()
|
|
guard currentTime - lastHapticTime > 5 else {
|
|
Logger.debug("ignoring haptic feedback since it's too soon")
|
|
return
|
|
}
|
|
feedbackGenerator.notificationOccurred(.success)
|
|
lastHapticTime = currentTime
|
|
}
|
|
|
|
// MARK: - Dismiss
|
|
|
|
internal func dismissIfPossible(shouldDelay: Bool, ignoreNag ignoreNagParam: Bool = false, completion: (() -> Void)? = nil) {
|
|
callUIAdapter.audioService.delegate = nil
|
|
|
|
let ignoreNag: Bool = {
|
|
// Nothing to nag about on iOS11
|
|
if #available(iOS 11, *) {
|
|
return true
|
|
} else {
|
|
// otherwise on iOS10, nag as specified
|
|
return ignoreNagParam
|
|
}
|
|
}()
|
|
|
|
if hasDismissed {
|
|
// Don't dismiss twice.
|
|
return
|
|
} else if !ignoreNag &&
|
|
call.direction == .incoming &&
|
|
UIDevice.current.supportsCallKit &&
|
|
(!Environment.shared.preferences.isCallKitEnabled() ||
|
|
Environment.shared.preferences.isCallKitPrivacyEnabled()) {
|
|
|
|
isShowingSettingsNag = true
|
|
|
|
// Update the nag view's copy to reflect the settings state.
|
|
if Environment.shared.preferences.isCallKitEnabled() {
|
|
settingsNagDescriptionLabel.text = NSLocalizedString("CALL_VIEW_SETTINGS_NAG_DESCRIPTION_PRIVACY",
|
|
comment: "Reminder to the user of the benefits of disabling CallKit privacy.")
|
|
} else {
|
|
settingsNagDescriptionLabel.text = NSLocalizedString("CALL_VIEW_SETTINGS_NAG_DESCRIPTION_ALL",
|
|
comment: "Reminder to the user of the benefits of enabling CallKit and disabling CallKit privacy.")
|
|
}
|
|
settingsNagDescriptionLabel.superview?.setNeedsLayout()
|
|
|
|
if Environment.shared.preferences.isCallKitEnabledSet() ||
|
|
Environment.shared.preferences.isCallKitPrivacySet() {
|
|
// User has already touched these preferences, only show
|
|
// the "fleeting" nag, not the "blocking" nag.
|
|
|
|
// Show nag for N seconds.
|
|
DispatchQueue.main.asyncAfter(deadline: .now() + 5) { [weak self] in
|
|
guard let strongSelf = self else { return }
|
|
strongSelf.dismissIfPossible(shouldDelay: false, ignoreNag: true)
|
|
}
|
|
}
|
|
} else if shouldDelay {
|
|
hasDismissed = true
|
|
DispatchQueue.main.asyncAfter(deadline: .now() + 1.5) { [weak self] in
|
|
guard let strongSelf = self else { return }
|
|
strongSelf.dismissImmediately(completion: completion)
|
|
}
|
|
} else {
|
|
hasDismissed = true
|
|
dismissImmediately(completion: completion)
|
|
}
|
|
}
|
|
|
|
internal func dismissImmediately(completion: (() -> Void)?) {
|
|
if CallViewController.kShowCallViewOnSeparateWindow {
|
|
OWSWindowManager.shared().endCall(self)
|
|
completion?()
|
|
} else {
|
|
self.dismiss(animated: true, completion: completion)
|
|
}
|
|
}
|
|
|
|
// MARK: - CallServiceObserver
|
|
|
|
internal func didUpdateCall(call: SignalCall?) {
|
|
// Do nothing.
|
|
}
|
|
|
|
internal func didUpdateVideoTracks(call: SignalCall?,
|
|
localCaptureSession: AVCaptureSession?,
|
|
remoteVideoTrack: RTCVideoTrack?) {
|
|
AssertIsOnMainThread()
|
|
|
|
updateLocalVideo(captureSession: localCaptureSession)
|
|
updateRemoteVideoTrack(remoteVideoTrack: remoteVideoTrack)
|
|
}
|
|
|
|
// MARK: - Proximity Monitoring
|
|
|
|
func ensureProximityMonitoring() {
|
|
if #available(iOS 11, *) {
|
|
// BUG: Adding `self` as a Weak reference to the proximityMonitoringManager results in
|
|
// the CallViewController never being deallocated, which, besides being a memory leak
|
|
// can interfere with subsequent video capture - presumably because the old capture
|
|
// session is still retained via the callViewController.localVideoView.
|
|
//
|
|
// A code audit has not revealed a retain cycle.
|
|
//
|
|
// Using the XCode memory debugger shows that a strong reference is held by
|
|
// windowManager.callNavigationController->_childViewControllers.
|
|
// Even though, when inspecting via the debugger, the CallViewController is not shown as
|
|
// a childViewController.
|
|
//
|
|
// (lldb) po [[[OWSWindowManager sharedManager] callNavigationController] childViewControllers]
|
|
// <__NSSingleObjectArrayI 0x1c0418bd0>(
|
|
// <OWSWindowRootViewController: 0x13de37550>
|
|
// )
|
|
//
|
|
// Weirder still, when presenting another CallViewController, the old one remains unallocated
|
|
// and inspecting it in the memory debugger shows _no_ strong references to it (yet it
|
|
// is not deallocated). Some weak references do remain - from the proximityMonitoringManager
|
|
// and the callObserver, both of which use the Weak<T> struct, which could be related.
|
|
//
|
|
// In any case, we can apparently avoid this behavior by not adding self as a Weak lifetime
|
|
// and as of iOS11, the system automatically managages proximityMonitoring
|
|
// via CallKit and AudioSessions. Proximity monitoring will be enabled whenever a call
|
|
// is active, unless we switch to VideoChat audio mode (which is actually desirable
|
|
// behavior), so the proximityMonitoringManager is redundant for calls on iOS11+.
|
|
} else {
|
|
// before iOS11, manually enable proximityMonitoring while we're on a call.
|
|
self.proximityMonitoringManager.add(lifetime: self)
|
|
}
|
|
}
|
|
}
|
|
|
|
extension CallViewController: CallVideoHintViewDelegate {
|
|
func didTapCallVideoHintView(_ videoHintView: CallVideoHintView) {
|
|
self.hasUserDismissedVideoHint = true
|
|
updateRemoteVideoLayout()
|
|
}
|
|
}
|
|
|
|
// Helper function inserted by Swift 4.2 migrator.
|
|
fileprivate func convertFromAVAudioSessionPort(_ input: AVAudioSession.Port) -> String {
|
|
return input.rawValue
|
|
}
|