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session-ios/Session/Calls/CallVC.swift

657 lines
24 KiB
Swift

// Copyright © 2022 Rangeproof Pty Ltd. All rights reserved.
import UIKit
import MediaPlayer
import WebRTC
import SessionUIKit
import SessionMessagingKit
import SessionUtilitiesKit
final class CallVC: UIViewController, VideoPreviewDelegate {
let call: SessionCall
var latestKnownAudioOutputDeviceName: String?
var durationTimer: Timer?
var duration: Int = 0
var shouldRestartCamera = true
weak var conversationVC: ConversationVC? = nil
lazy var cameraManager: CameraManager = {
let result = CameraManager()
result.delegate = self
return result
}()
// MARK: - UI Components
private lazy var localVideoView: LocalVideoView = {
let result = LocalVideoView()
result.clipsToBounds = true
result.themeBackgroundColor = .backgroundSecondary
result.isHidden = !call.isVideoEnabled
result.layer.cornerRadius = UIDevice.current.isIPad ? 20 : 10
result.layer.masksToBounds = true
result.set(.width, to: LocalVideoView.width)
result.set(.height, to: LocalVideoView.height)
result.makeViewDraggable()
return result
}()
private lazy var remoteVideoView: RemoteVideoView = {
let result = RemoteVideoView()
result.alpha = 0
result.themeBackgroundColor = .backgroundPrimary
result.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(handleRemoteVieioViewTapped)))
return result
}()
private lazy var fadeView: GradientView = {
let height: CGFloat = ((UIApplication.shared.keyWindow?.safeAreaInsets.top)
.map { $0 + Values.veryLargeSpacing })
.defaulting(to: 64)
let result: GradientView = GradientView()
result.themeBackgroundGradient = [
.value(.backgroundPrimary, alpha: 0.4),
.value(.backgroundPrimary, alpha: 0)
]
result.set(.height, to: height)
return result
}()
private lazy var profilePictureView: UIImageView = {
let result = UIImageView()
let radius: CGFloat = isIPhone6OrSmaller ? 100 : 120
result.image = self.call.profilePicture
result.set(.width, to: radius * 2)
result.set(.height, to: radius * 2)
result.layer.cornerRadius = radius
result.layer.masksToBounds = true
result.contentMode = .scaleAspectFill
return result
}()
private lazy var minimizeButton: UIButton = {
let result = UIButton(type: .custom)
result.setImage(
UIImage(named: "Minimize")?
.withRenderingMode(.alwaysTemplate),
for: .normal
)
result.themeTintColor = .textPrimary
result.addTarget(self, action: #selector(minimize), for: UIControl.Event.touchUpInside)
result.isHidden = !call.hasConnected
result.set(.width, to: 60)
result.set(.height, to: 60)
return result
}()
private lazy var answerButton: UIButton = {
let result = UIButton(type: .custom)
result.setImage(
UIImage(named: "AnswerCall")?
.withRenderingMode(.alwaysTemplate),
for: .normal
)
result.themeTintColor = .white
result.themeBackgroundColor = .callAccept_background
result.layer.cornerRadius = 30
result.addTarget(self, action: #selector(answerCall), for: UIControl.Event.touchUpInside)
result.isHidden = call.hasStartedConnecting
result.set(.width, to: 60)
result.set(.height, to: 60)
return result
}()
private lazy var hangUpButton: UIButton = {
let result = UIButton(type: .custom)
result.setImage(
UIImage(named: "EndCall")?
.withRenderingMode(.alwaysTemplate),
for: .normal
)
result.themeTintColor = .white
result.themeBackgroundColor = .callDecline_background
result.layer.cornerRadius = 30
result.addTarget(self, action: #selector(endCall), for: UIControl.Event.touchUpInside)
result.set(.width, to: 60)
result.set(.height, to: 60)
return result
}()
private lazy var responsePanel: UIStackView = {
let result = UIStackView(arrangedSubviews: [hangUpButton, answerButton])
result.axis = .horizontal
result.spacing = Values.veryLargeSpacing * 2 + 40
return result
}()
private lazy var switchCameraButton: UIButton = {
let result = UIButton(type: .custom)
result.isEnabled = call.isVideoEnabled
result.setImage(
UIImage(named: "SwitchCamera")?
.withRenderingMode(.alwaysTemplate),
for: .normal
)
result.themeTintColor = .textPrimary
result.themeBackgroundColor = .backgroundSecondary
result.layer.cornerRadius = 30
result.addTarget(self, action: #selector(switchCamera), for: UIControl.Event.touchUpInside)
result.set(.width, to: 60)
result.set(.height, to: 60)
return result
}()
private lazy var switchAudioButton: UIButton = {
let result = UIButton(type: .custom)
result.setImage(
UIImage(named: "AudioOff")?
.withRenderingMode(.alwaysTemplate),
for: .normal
)
result.themeTintColor = (call.isMuted ?
.white :
.textPrimary
)
result.themeBackgroundColor = (call.isMuted ?
.danger :
.backgroundSecondary
)
result.layer.cornerRadius = 30
result.addTarget(self, action: #selector(switchAudio), for: UIControl.Event.touchUpInside)
result.set(.width, to: 60)
result.set(.height, to: 60)
return result
}()
private lazy var videoButton: UIButton = {
let result = UIButton(type: .custom)
result.setImage(
UIImage(named: "VideoCall")?
.withRenderingMode(.alwaysTemplate),
for: .normal
)
result.themeTintColor = .textPrimary
result.themeBackgroundColor = .backgroundSecondary
result.layer.cornerRadius = 30
result.addTarget(self, action: #selector(operateCamera), for: UIControl.Event.touchUpInside)
result.set(.width, to: 60)
result.set(.height, to: 60)
return result
}()
private lazy var volumeView: MPVolumeView = {
let result = MPVolumeView()
result.showsVolumeSlider = false
result.showsRouteButton = true
result.setRouteButtonImage(
UIImage(named: "Speaker")?
.withRenderingMode(.alwaysTemplate),
for: .normal
)
result.themeTintColor = .textPrimary
result.themeBackgroundColor = .backgroundSecondary
result.layer.cornerRadius = 30
result.set(.width, to: 60)
result.set(.height, to: 60)
return result
}()
private lazy var operationPanel: UIStackView = {
let result = UIStackView(arrangedSubviews: [switchCameraButton, videoButton, switchAudioButton, volumeView])
result.axis = .horizontal
result.spacing = Values.veryLargeSpacing
return result
}()
private lazy var titleLabel: UILabel = {
let result: UILabel = UILabel()
result.font = .boldSystemFont(ofSize: Values.veryLargeFontSize)
result.themeTextColor = .textPrimary
result.textAlignment = .center
return result
}()
private lazy var callInfoLabel: UILabel = {
let result: UILabel = UILabel()
result.font = .boldSystemFont(ofSize: Values.veryLargeFontSize)
result.themeTextColor = .textPrimary
result.textAlignment = .center
result.isHidden = call.hasConnected
if call.hasStartedConnecting { result.text = "Connecting..." }
return result
}()
private lazy var callDurationLabel: UILabel = {
let result = UILabel()
result.font = .boldSystemFont(ofSize: Values.veryLargeFontSize)
result.themeTextColor = .textPrimary
result.textAlignment = .center
result.isHidden = true
return result
}()
// MARK: - Lifecycle
init(for call: SessionCall) {
self.call = call
super.init(nibName: nil, bundle: nil)
setupStateChangeCallbacks()
self.modalPresentationStyle = .overFullScreen
self.modalTransitionStyle = .crossDissolve
}
func setupStateChangeCallbacks() {
self.call.remoteVideoStateDidChange = { isEnabled in
DispatchQueue.main.async {
UIView.animate(withDuration: 0.25) {
self.remoteVideoView.alpha = isEnabled ? 1 : 0
}
if self.callInfoLabel.alpha < 0.5 {
UIView.animate(withDuration: 0.25) {
self.operationPanel.alpha = 1
self.responsePanel.alpha = 1
self.callInfoLabel.alpha = 1
}
}
}
}
self.call.hasStartedConnectingDidChange = {
DispatchQueue.main.async {
self.callInfoLabel.text = "Connecting..."
self.answerButton.alpha = 0
UIView.animate(
withDuration: 0.5,
delay: 0,
usingSpringWithDamping: 1,
initialSpringVelocity: 1,
options: .curveEaseIn,
animations: { [weak self] in
self?.answerButton.isHidden = true
},
completion: nil
)
}
}
self.call.hasConnectedDidChange = { [weak self] in
DispatchQueue.main.async {
CallRingTonePlayer.shared.stopPlayingRingTone()
self?.callInfoLabel.text = "Connected"
self?.minimizeButton.isHidden = false
self?.durationTimer = Timer.scheduledTimer(withTimeInterval: 1, repeats: true) { _ in
self?.updateDuration()
}
self?.callInfoLabel.isHidden = true
self?.callDurationLabel.isHidden = false
}
}
self.call.hasEndedDidChange = { [weak self] in
DispatchQueue.main.async {
self?.durationTimer?.invalidate()
self?.durationTimer = nil
self?.handleEndCallMessage()
}
}
self.call.hasStartedReconnecting = { [weak self] in
DispatchQueue.main.async {
self?.callInfoLabel.isHidden = false
self?.callDurationLabel.isHidden = true
self?.callInfoLabel.text = "Reconnecting..."
}
}
self.call.hasReconnected = { [weak self] in
DispatchQueue.main.async {
self?.callInfoLabel.isHidden = true
self?.callDurationLabel.isHidden = false
}
}
}
required init(coder: NSCoder) { preconditionFailure("Use init(for:) instead.") }
override func viewDidLoad() {
super.viewDidLoad()
view.themeBackgroundColor = .backgroundPrimary
setUpViewHierarchy()
if shouldRestartCamera { cameraManager.prepare() }
touch(call.videoCapturer)
titleLabel.text = self.call.contactName
AppEnvironment.shared.callManager.startCall(call) { [weak self] error in
DispatchQueue.main.async {
if let _ = error {
self?.callInfoLabel.text = "Can't start a call."
self?.endCall()
}
else {
self?.callInfoLabel.text = "Ringing..."
self?.answerButton.isHidden = true
}
}
}
setupOrientationMonitoring()
NotificationCenter.default.addObserver(self, selector: #selector(audioRouteDidChange), name: AVAudioSession.routeChangeNotification, object: nil)
}
deinit {
UIDevice.current.endGeneratingDeviceOrientationNotifications()
NotificationCenter.default.removeObserver(self)
}
func setUpViewHierarchy() {
// Profile picture container
let profilePictureContainer = UIView()
view.addSubview(profilePictureContainer)
// Remote video view
call.attachRemoteVideoRenderer(remoteVideoView)
view.addSubview(remoteVideoView)
remoteVideoView.translatesAutoresizingMaskIntoConstraints = false
remoteVideoView.pin(to: view)
// Local video view
call.attachLocalVideoRenderer(localVideoView)
// Fade view
view.addSubview(fadeView)
fadeView.translatesAutoresizingMaskIntoConstraints = false
fadeView.pin([ UIView.HorizontalEdge.left, UIView.VerticalEdge.top, UIView.HorizontalEdge.right ], to: view)
// Minimize button
view.addSubview(minimizeButton)
minimizeButton.translatesAutoresizingMaskIntoConstraints = false
minimizeButton.pin(.left, to: .left, of: view)
minimizeButton.pin(.top, to: .top, of: view, withInset: 32)
// Title label
view.addSubview(titleLabel)
titleLabel.translatesAutoresizingMaskIntoConstraints = false
titleLabel.center(.vertical, in: minimizeButton)
titleLabel.center(.horizontal, in: view)
// Response Panel
view.addSubview(responsePanel)
responsePanel.center(.horizontal, in: view)
responsePanel.pin(.bottom, to: .bottom, of: view.safeAreaLayoutGuide, withInset: -Values.smallSpacing)
// Operation Panel
view.addSubview(operationPanel)
operationPanel.center(.horizontal, in: view)
operationPanel.pin(.bottom, to: .top, of: responsePanel, withInset: -Values.veryLargeSpacing)
// Profile picture view
profilePictureContainer.pin(.top, to: .bottom, of: fadeView)
profilePictureContainer.pin(.bottom, to: .top, of: operationPanel)
profilePictureContainer.pin([ UIView.HorizontalEdge.left, UIView.HorizontalEdge.right ], to: view)
profilePictureContainer.addSubview(profilePictureView)
profilePictureView.center(in: profilePictureContainer)
// Call info label
let callInfoLabelContainer = UIView()
view.addSubview(callInfoLabelContainer)
callInfoLabelContainer.pin(.top, to: .bottom, of: profilePictureView)
callInfoLabelContainer.pin(.bottom, to: .bottom, of: profilePictureContainer)
callInfoLabelContainer.pin([ UIView.HorizontalEdge.left, UIView.HorizontalEdge.right ], to: view)
callInfoLabelContainer.addSubview(callInfoLabel)
callInfoLabelContainer.addSubview(callDurationLabel)
callInfoLabel.translatesAutoresizingMaskIntoConstraints = false
callInfoLabel.center(in: callInfoLabelContainer)
callDurationLabel.translatesAutoresizingMaskIntoConstraints = false
callDurationLabel.center(in: callInfoLabelContainer)
}
private func addLocalVideoView() {
let safeAreaInsets = UIApplication.shared.keyWindow?.safeAreaInsets
CurrentAppContext().mainWindow?.addSubview(localVideoView)
localVideoView.autoPinEdge(toSuperviewEdge: .right, withInset: Values.smallSpacing)
let topMargin = (safeAreaInsets?.top ?? 0) + Values.veryLargeSpacing
localVideoView.autoPinEdge(toSuperviewEdge: .top, withInset: topMargin)
}
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
if (call.isVideoEnabled && shouldRestartCamera) { cameraManager.start() }
shouldRestartCamera = true
addLocalVideoView()
remoteVideoView.alpha = (call.isRemoteVideoEnabled ? 1 : 0)
}
override func viewWillDisappear(_ animated: Bool) {
super.viewWillDisappear(animated)
if (call.isVideoEnabled && shouldRestartCamera) { cameraManager.stop() }
localVideoView.removeFromSuperview()
}
// MARK: - Orientation
private func setupOrientationMonitoring() {
UIDevice.current.beginGeneratingDeviceOrientationNotifications()
NotificationCenter.default.addObserver(self, selector: #selector(didChangeDeviceOrientation), name: UIDevice.orientationDidChangeNotification, object: UIDevice.current)
}
@objc func didChangeDeviceOrientation(notification: Notification) {
if UIDevice.current.isIPad { return }
func rotateAllButtons(rotationAngle: CGFloat) {
let transform = CGAffineTransform(rotationAngle: rotationAngle)
UIView.animate(withDuration: 0.2) {
self.answerButton.transform = transform
self.hangUpButton.transform = transform
self.switchAudioButton.transform = transform
self.switchCameraButton.transform = transform
self.videoButton.transform = transform
self.volumeView.transform = transform
}
}
switch UIDevice.current.orientation {
case .portrait: rotateAllButtons(rotationAngle: 0)
case .portraitUpsideDown: rotateAllButtons(rotationAngle: .pi)
case .landscapeLeft: rotateAllButtons(rotationAngle: .halfPi)
case .landscapeRight: rotateAllButtons(rotationAngle: .pi + .halfPi)
default: break
}
}
// MARK: Call signalling
func handleAnswerMessage(_ message: CallMessage) {
callInfoLabel.text = "Connecting..."
}
func handleEndCallMessage() {
SNLog("[Calls] Ending call.")
self.callInfoLabel.isHidden = false
self.callDurationLabel.isHidden = true
self.callInfoLabel.text = "Call Ended"
UIView.animate(withDuration: 0.25) {
self.remoteVideoView.alpha = 0
self.operationPanel.alpha = 1
self.responsePanel.alpha = 1
self.callInfoLabel.alpha = 1
}
Timer.scheduledTimer(withTimeInterval: 2, repeats: false) { [weak self] _ in
self?.conversationVC?.showInputAccessoryView()
self?.presentingViewController?.dismiss(animated: true, completion: nil)
}
}
@objc private func answerCall() {
AppEnvironment.shared.callManager.answerCall(call) { [weak self] error in
DispatchQueue.main.async {
if let _ = error {
self?.callInfoLabel.text = "Can't answer the call."
self?.endCall()
}
}
}
}
@objc private func endCall() {
AppEnvironment.shared.callManager.endCall(call) { [weak self] error in
if let _ = error {
self?.call.endSessionCall()
AppEnvironment.shared.callManager.reportCurrentCallEnded(reason: nil)
}
DispatchQueue.main.async {
self?.conversationVC?.showInputAccessoryView()
self?.presentingViewController?.dismiss(animated: true, completion: nil)
}
}
}
@objc private func updateDuration() {
callDurationLabel.text = String(format: "%.2d:%.2d", duration/60, duration%60)
duration += 1
}
// MARK: - Minimize to a floating view
@objc private func minimize() {
self.shouldRestartCamera = false
self.conversationVC?.showInputAccessoryView()
let miniCallView = MiniCallView(from: self)
miniCallView.show()
presentingViewController?.dismiss(animated: true, completion: nil)
}
// MARK: - Video and Audio
@objc private func operateCamera() {
if (call.isVideoEnabled) {
localVideoView.isHidden = true
cameraManager.stop()
videoButton.themeTintColor = .textPrimary
videoButton.themeBackgroundColor = .backgroundSecondary
switchCameraButton.isEnabled = false
call.isVideoEnabled = false
}
else {
guard Permissions.requestCameraPermissionIfNeeded() else { return }
let previewVC = VideoPreviewVC()
previewVC.delegate = self
present(previewVC, animated: true, completion: nil)
}
}
func cameraDidConfirmTurningOn() {
localVideoView.isHidden = false
cameraManager.prepare()
cameraManager.start()
videoButton.themeTintColor = .backgroundSecondary
videoButton.themeBackgroundColor = .textPrimary
switchCameraButton.isEnabled = true
call.isVideoEnabled = true
}
@objc private func switchCamera() {
cameraManager.switchCamera()
}
@objc private func switchAudio() {
if call.isMuted {
switchAudioButton.themeTintColor = .textPrimary
switchAudioButton.themeBackgroundColor = .backgroundSecondary
call.isMuted = false
}
else {
switchAudioButton.themeTintColor = .white
switchAudioButton.themeBackgroundColor = .danger
call.isMuted = true
}
}
@objc private func audioRouteDidChange() {
let currentSession = AVAudioSession.sharedInstance()
let currentRoute = currentSession.currentRoute
if let currentOutput = currentRoute.outputs.first {
if let latestKnownAudioOutputDeviceName = latestKnownAudioOutputDeviceName, currentOutput.portName == latestKnownAudioOutputDeviceName { return }
latestKnownAudioOutputDeviceName = currentOutput.portName
switch currentOutput.portType {
case .builtInSpeaker:
let image = UIImage(named: "Speaker")?.withRenderingMode(.alwaysTemplate)
volumeView.setRouteButtonImage(image, for: .normal)
volumeView.themeTintColor = .backgroundSecondary
volumeView.themeBackgroundColor = .textPrimary
case .headphones:
let image = UIImage(named: "Headsets")?.withRenderingMode(.alwaysTemplate)
volumeView.setRouteButtonImage(image, for: .normal)
volumeView.themeTintColor = .backgroundSecondary
volumeView.themeBackgroundColor = .textPrimary
case .bluetoothLE: fallthrough
case .bluetoothA2DP:
let image = UIImage(named: "Bluetooth")?.withRenderingMode(.alwaysTemplate)
volumeView.setRouteButtonImage(image, for: .normal)
volumeView.themeTintColor = .backgroundSecondary
volumeView.themeBackgroundColor = .textPrimary
case .bluetoothHFP:
let image = UIImage(named: "Airpods")?.withRenderingMode(.alwaysTemplate)
volumeView.setRouteButtonImage(image, for: .normal)
volumeView.themeTintColor = .backgroundSecondary
volumeView.themeBackgroundColor = .textPrimary
case .builtInReceiver: fallthrough
default:
let image = UIImage(named: "Speaker")?.withRenderingMode(.alwaysTemplate)
volumeView.setRouteButtonImage(image, for: .normal)
volumeView.themeTintColor = .backgroundSecondary
volumeView.themeBackgroundColor = .textPrimary
}
}
}
@objc private func handleRemoteVieioViewTapped(gesture: UITapGestureRecognizer) {
let isHidden = callDurationLabel.alpha < 0.5
UIView.animate(withDuration: 0.5) {
self.operationPanel.alpha = isHidden ? 1 : 0
self.responsePanel.alpha = isHidden ? 1 : 0
self.callDurationLabel.alpha = isHidden ? 1 : 0
}
}
}