session-ios/Signal/src/view controllers/CallViewController.swift

744 lines
28 KiB
Swift

//
// Copyright (c) 2017 Open Whisper Systems. All rights reserved.
//
import Foundation
import WebRTC
import PromiseKit
// TODO: Add category so that button handlers can be defined where button is created.
// TODO: Ensure buttons enabled & disabled as necessary.
@objc(OWSCallViewController)
class CallViewController: UIViewController, CallObserver, CallServiceObserver, RTCEAGLVideoViewDelegate {
enum CallDirection {
case unspecified, outgoing, incoming
}
let TAG = "[CallViewController]"
// Dependencies
let callUIAdapter: CallUIAdapter
let contactsManager: OWSContactsManager
// MARK: Properties
var callDirection: CallDirection = .unspecified
var thread: TSContactThread!
var call: SignalCall!
// MARK: Views
var hasConstraints = false
var blurView: UIVisualEffectView!
var dateFormatter: DateFormatter?
// MARK: Contact Views
var contactNameLabel: UILabel!
var contactAvatarView: AvatarImageView!
var callStatusLabel: UILabel!
var callDurationTimer: Timer?
// MARK: Ongoing Call Controls
var ongoingCallView: UIView!
var hangUpButton: UIButton!
var speakerPhoneButton: UIButton!
var audioModeMuteButton: UIButton!
var audioModeVideoButton: UIButton!
var videoModeMuteButton: UIButton!
var videoModeVideoButton: UIButton!
// TODO: Later, we'll re-enable the text message button
// so users can send and read messages during a
// call.
// var textMessageButton: UIButton!
// MARK: Incoming Call Controls
var incomingCallView: UIView!
var acceptIncomingButton: UIButton!
var declineIncomingButton: UIButton!
// MARK: Video Views
var remoteVideoView: RTCEAGLVideoView!
var localVideoView: RTCCameraPreviewView!
weak var localVideoTrack: RTCVideoTrack?
weak var remoteVideoTrack: RTCVideoTrack?
var remoteVideoSize: CGSize! = CGSize.zero
var remoteVideoConstraints: [NSLayoutConstraint] = []
var localVideoConstraints: [NSLayoutConstraint] = []
// MARK: Initializers
required init?(coder aDecoder: NSCoder) {
contactsManager = Environment.getCurrent().contactsManager
let callService = Environment.getCurrent().callService!
callUIAdapter = callService.callUIAdapter
super.init(coder: aDecoder)
}
required init() {
contactsManager = Environment.getCurrent().contactsManager
let callService = Environment.getCurrent().callService!
callUIAdapter = callService.callUIAdapter
super.init(nibName: nil, bundle: nil)
}
// MARK: View Lifecycle
override func viewDidDisappear(_ animated: Bool) {
super.viewDidDisappear(animated)
callDurationTimer?.invalidate()
callDurationTimer = nil
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
updateCallUI(callState: call.state)
}
override func viewDidLoad() {
super.viewDidLoad()
guard let thread = self.thread else {
Logger.error("\(TAG) tried to show call call without specifying thread.")
showCallFailed(error: OWSErrorMakeAssertionError())
return
}
createViews()
contactNameLabel.text = contactsManager.displayName(forPhoneIdentifier: thread.contactIdentifier())
contactAvatarView.image = OWSAvatarBuilder.buildImage(for: thread, contactsManager: contactsManager)
switch callDirection {
case .unspecified:
Logger.error("\(TAG) must set call direction before call starts.")
showCallFailed(error: OWSErrorMakeAssertionError())
case .outgoing:
self.call = self.callUIAdapter.startOutgoingCall(handle: thread.contactIdentifier())
case .incoming:
Logger.error("\(TAG) handling Incoming call")
// No-op, since call service is already set up at this point, the result of which was presenting this viewController.
}
// Subscribe for future call updates
call.addObserverAndSyncState(observer: self)
Environment.getCurrent().callService.addObserverAndSyncState(observer:self)
}
// MARK: - Create Views
func createViews() {
// Dark blurred background.
let blurEffect = UIBlurEffect(style: .dark)
blurView = UIVisualEffectView(effect: blurEffect)
self.view.addSubview(blurView)
// Create the video views first, as they are under the other views.
createVideoViews()
createContactViews()
createOngoingCallControls()
createIncomingCallControls()
}
func createVideoViews() {
remoteVideoView = RTCEAGLVideoView()
remoteVideoView.delegate = self
localVideoView = RTCCameraPreviewView()
remoteVideoView.isHidden = true
localVideoView.isHidden = true
self.view.addSubview(remoteVideoView)
self.view.addSubview(localVideoView)
}
func createContactViews() {
contactNameLabel = UILabel()
contactNameLabel.font = UIFont.ows_lightFont(withSize:ScaleFromIPhone5To7Plus(32, 40))
contactNameLabel.textColor = UIColor.white
self.view.addSubview(contactNameLabel)
callStatusLabel = UILabel()
callStatusLabel.font = UIFont.ows_regularFont(withSize:ScaleFromIPhone5To7Plus(19, 25))
callStatusLabel.textColor = UIColor.white
self.view.addSubview(callStatusLabel)
contactAvatarView = AvatarImageView()
self.view.addSubview(contactAvatarView)
}
func buttonSize() -> CGFloat {
return ScaleFromIPhone5To7Plus(84, 108)
}
func buttonInset() -> CGFloat {
return ScaleFromIPhone5To7Plus(7, 9)
}
func createOngoingCallControls() {
// textMessageButton = createButton(imageName:"message-active-wide",
// action:#selector(didPressTextMessage))
speakerPhoneButton = createButton(imageName:"speaker-inactive-wide",
action:#selector(didPressSpeakerphone))
hangUpButton = createButton(imageName:"hangup-active-wide",
action:#selector(didPressHangup))
audioModeMuteButton = createButton(imageName:"mute-unselected-wide",
action:#selector(didPressMute))
videoModeMuteButton = createButton(imageName:"video-mute-unselected",
action:#selector(didPressMute))
audioModeVideoButton = createButton(imageName:"video-inactive-wide",
action:#selector(didPressVideo))
videoModeVideoButton = createButton(imageName:"video-video-unselected",
action:#selector(didPressVideo))
setButtonSelectedImage(button: audioModeMuteButton, imageName: "mute-selected-wide")
setButtonSelectedImage(button: videoModeMuteButton, imageName: "video-mute-selected")
setButtonSelectedImage(button: audioModeVideoButton, imageName: "video-active-wide")
setButtonSelectedImage(button: videoModeVideoButton, imageName: "video-video-selected")
setButtonSelectedImage(button: speakerPhoneButton, imageName: "speaker-active-wide")
ongoingCallView = createContainerForCallControls(controlGroups : [
[audioModeMuteButton, speakerPhoneButton, audioModeVideoButton ],
[videoModeMuteButton, hangUpButton, videoModeVideoButton ]
])
}
func setButtonSelectedImage(button: UIButton, imageName: String) {
let image = UIImage(named:imageName)
assert(image != nil)
button.setImage(image, for:.selected)
}
func createIncomingCallControls() {
acceptIncomingButton = createButton(imageName:"call-active-wide",
action:#selector(didPressAnswerCall))
declineIncomingButton = createButton(imageName:"hangup-active-wide",
action:#selector(didPressDeclineCall))
incomingCallView = createContainerForCallControls(controlGroups : [
[acceptIncomingButton, declineIncomingButton ]
])
}
func createContainerForCallControls(controlGroups: [[UIView]]) -> UIView {
let containerView = UIView()
self.view.addSubview(containerView)
var rows: [UIView] = []
for controlGroup in controlGroups {
rows.append(rowWithSubviews(subviews:controlGroup))
}
let rowspacing = ScaleFromIPhone5To7Plus(6, 7)
var prevRow: UIView?
for row in rows {
containerView.addSubview(row)
row.autoHCenterInSuperview()
if prevRow != nil {
row.autoPinEdge(.top, to:.bottom, of:prevRow!, withOffset:rowspacing)
}
prevRow = row
}
containerView.setContentHuggingVerticalHigh()
rows.first!.autoPinEdge(toSuperviewEdge:.top)
rows.last!.autoPinEdge(toSuperviewEdge:.bottom)
return containerView
}
func createButton(imageName: String, action: Selector) -> UIButton {
let image = UIImage(named:imageName)
assert(image != nil)
let button = UIButton()
button.setImage(image, for:.normal)
button.imageEdgeInsets = UIEdgeInsets(top: buttonInset(),
left: buttonInset(),
bottom: buttonInset(),
right: buttonInset())
button.addTarget(self, action:action, for:.touchUpInside)
button.autoSetDimension(.width, toSize:buttonSize())
button.autoSetDimension(.height, toSize:buttonSize())
return button
}
// Creates a row containing a given set of subviews.
func rowWithSubviews(subviews: [UIView]) -> UIView {
let row = UIView()
row.setContentHuggingVerticalHigh()
row.autoSetDimension(.height, toSize:buttonSize())
if subviews.count > 1 {
// If there's more than one subview in the row,
// space them evenly within the row.
var lastSubview: UIView?
var lastSpacer: UIView?
for subview in subviews {
row.addSubview(subview)
subview.setContentHuggingHorizontalHigh()
subview.autoVCenterInSuperview()
if lastSubview != nil {
let spacer = UIView()
spacer.isHidden = true
row.addSubview(spacer)
spacer.autoPinEdge(.left, to:.right, of:lastSubview!)
spacer.autoPinEdge(.right, to:.left, of:subview)
spacer.setContentHuggingHorizontalLow()
spacer.autoVCenterInSuperview()
if lastSpacer != nil {
spacer.autoMatch(.width, to:.width, of:lastSpacer!)
}
lastSpacer = spacer
}
lastSubview = subview
}
subviews.first!.autoPinEdge(toSuperviewEdge:.left)
subviews.last!.autoPinEdge(toSuperviewEdge:.right)
} else if subviews.count == 1 {
// If there's only one subview in this row, center it.
let subview = subviews.first!
row.addSubview(subview)
subview.autoVCenterInSuperview()
subview.autoPinWidthToSuperview()
}
return row
}
// MARK: - Layout
override func updateViewConstraints() {
if !hasConstraints {
// We only want to create our constraints once.
//
// Note that constraints are also created elsewhere.
// This only creates the constraints for the top-level contents of the view.
hasConstraints = true
let topMargin = CGFloat(40)
let contactHMargin = CGFloat(30)
let contactVSpacing = CGFloat(3)
let ongoingHMargin = ScaleFromIPhone5To7Plus(46, 72)
let incomingHMargin = ScaleFromIPhone5To7Plus(46, 72)
let ongoingBottomMargin = ScaleFromIPhone5To7Plus(23, 41)
let incomingBottomMargin = 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()
localVideoView.autoPinEdge(toSuperviewEdge:.right, withInset:videoPreviewHMargin)
localVideoView.autoPinEdge(toSuperviewEdge:.top, withInset:topMargin)
let localVideoSize = ScaleFromIPhone5To7Plus(80, 100)
localVideoView.autoSetDimension(.width, toSize:localVideoSize)
localVideoView.autoSetDimension(.height, toSize:localVideoSize)
contactNameLabel.autoPinEdge(toSuperviewEdge:.top, withInset:topMargin)
contactNameLabel.autoPinEdge(toSuperviewEdge:.left, withInset:contactHMargin)
contactNameLabel.setContentHuggingVerticalHigh()
callStatusLabel.autoPinEdge(.top, to:.bottom, of:contactNameLabel, withOffset:contactVSpacing)
callStatusLabel.autoPinEdge(toSuperviewEdge:.left, withInset:contactHMargin)
callStatusLabel.setContentHuggingVerticalHigh()
contactAvatarView.autoPinEdge(.top, to:.bottom, of:callStatusLabel, withOffset:+avatarTopSpacing)
contactAvatarView.autoPinEdge(.bottom, to:.top, of:ongoingCallView, withOffset:-avatarBottomSpacing)
contactAvatarView.autoHCenterInSuperview()
// Stretch that avatar to fill the available space.
contactAvatarView.setContentHuggingLow()
contactAvatarView.setCompressionResistanceLow()
// Preserve square aspect ratio of contact avatar.
contactAvatarView.autoMatch(.width, to:.height, of:contactAvatarView)
// Ongoing call controls
ongoingCallView.autoPinEdge(toSuperviewEdge:.bottom, withInset:ongoingBottomMargin)
ongoingCallView.autoPinWidthToSuperview(withMargin:ongoingHMargin)
ongoingCallView.setContentHuggingVerticalHigh()
// Incoming call controls
incomingCallView.autoPinEdge(toSuperviewEdge:.bottom, withInset:incomingBottomMargin)
incomingCallView.autoPinWidthToSuperview(withMargin:incomingHMargin)
incomingCallView.setContentHuggingVerticalHigh()
}
updateRemoteVideoLayout()
updateLocalVideoLayout()
super.updateViewConstraints()
}
internal func updateRemoteVideoLayout() {
NSLayoutConstraint.deactivate(self.remoteVideoConstraints)
var constraints: [NSLayoutConstraint] = []
// We fill the screen with the remote video. The remote video's
// aspect ratio may not (and in fact will very rarely) match the
// aspect ratio of the current device, so parts of the remote
// video will be hidden offscreen.
//
// It's better to trim the remote video than to adopt a letterboxed
// layout.
if remoteVideoSize.width > 0 && remoteVideoSize.height > 0 &&
self.view.bounds.size.width > 0 && self.view.bounds.size.height > 0 {
var remoteVideoWidth = self.view.bounds.size.width
var remoteVideoHeight = self.view.bounds.size.height
if remoteVideoSize.width / self.view.bounds.size.width > remoteVideoSize.height / self.view.bounds.size.height {
remoteVideoWidth = round(self.view.bounds.size.height * remoteVideoSize.width / remoteVideoSize.height)
} else {
remoteVideoHeight = round(self.view.bounds.size.width * remoteVideoSize.height / remoteVideoSize.width)
}
constraints.append(remoteVideoView.autoSetDimension(.width, toSize:remoteVideoWidth))
constraints.append(remoteVideoView.autoSetDimension(.height, toSize:remoteVideoHeight))
constraints += remoteVideoView.autoCenterInSuperview()
remoteVideoView.frame = CGRect(origin:CGPoint.zero,
size:CGSize(width:remoteVideoWidth,
height:remoteVideoHeight))
remoteVideoView.isHidden = false
} else {
constraints += remoteVideoView.autoPinEdgesToSuperviewEdges()
remoteVideoView.isHidden = true
}
self.remoteVideoConstraints = constraints
updateCallUI(callState: call.state)
}
internal func updateLocalVideoLayout() {
NSLayoutConstraint.deactivate(self.localVideoConstraints)
var constraints: [NSLayoutConstraint] = []
if localVideoView.isHidden {
let contactHMargin = CGFloat(30)
constraints.append(contactNameLabel.autoPinEdge(toSuperviewEdge:.right, withInset:contactHMargin))
constraints.append(callStatusLabel.autoPinEdge(toSuperviewEdge:.right, withInset:contactHMargin))
} else {
let spacing = CGFloat(10)
constraints.append(contactNameLabel.autoPinEdge(.right, to:.left, of:localVideoView, withOffset:-spacing))
constraints.append(callStatusLabel.autoPinEdge(.right, to:.left, of:localVideoView, withOffset:-spacing))
}
self.localVideoConstraints = constraints
}
// MARK: - Methods
// objc accessible way to set our swift enum.
func setOutgoingCallDirection() {
callDirection = .outgoing
}
// objc accessible way to set our swift enum.
func setIncomingCallDirection() {
callDirection = .incoming
}
func showCallFailed(error: Error) {
// TODO Show something in UI.
Logger.error("\(TAG) 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:
if let call = self.call {
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 = formattedDate.substring(from: 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 = formattedDate.substring(from: formattedDate.index(formattedDate.startIndex, offsetBy: 1))
}
}
return formattedDate
} else {
return NSLocalizedString("IN_CALL_TALKING", comment: "Call setup status label")
}
case .remoteBusy:
return NSLocalizedString("END_CALL_RESPONDER_IS_BUSY", comment: "Call setup status label")
case .localFailure:
return NSLocalizedString("END_CALL_UNCATEGORIZED_FAILURE", comment: "Call setup status label")
}
}
func updateCallStatusLabel(callState: CallState) {
assert(Thread.isMainThread)
self.callStatusLabel.text = localizedTextForCallState(callState)
}
func updateCallUI(callState: CallState) {
assert(Thread.isMainThread)
updateCallStatusLabel(callState: callState)
audioModeMuteButton.isSelected = call.isMuted
videoModeMuteButton.isSelected = call.isMuted
audioModeVideoButton.isSelected = call.hasLocalVideo
videoModeVideoButton.isSelected = call.hasLocalVideo
speakerPhoneButton.isSelected = call.isSpeakerphoneEnabled
// Show Incoming vs. Ongoing call controls
let isRinging = callState == .localRinging
incomingCallView.isHidden = !isRinging
incomingCallView.isUserInteractionEnabled = isRinging
ongoingCallView.isHidden = isRinging
ongoingCallView.isUserInteractionEnabled = !isRinging
// Rework control state if remote video is available.
contactAvatarView.isHidden = !remoteVideoView.isHidden
speakerPhoneButton.isHidden = !remoteVideoView.isHidden
audioModeMuteButton.isHidden = !remoteVideoView.isHidden
videoModeMuteButton.isHidden = remoteVideoView.isHidden
audioModeVideoButton.isHidden = !remoteVideoView.isHidden
videoModeVideoButton.isHidden = remoteVideoView.isHidden
// Dismiss Handling
switch callState {
case .remoteHangup, .remoteBusy, .localFailure:
Logger.debug("\(TAG) dismissing after delay because new state is \(callState)")
DispatchQueue.main.asyncAfter(deadline: .now() + 1.5) {
self.dismiss(animated: true)
}
case .localHangup:
Logger.debug("\(TAG) dismissing immediately from local hangup")
self.dismiss(animated: true)
default: break
}
if callState == .connected {
if callDurationTimer == nil {
let kDurationUpdateFrequencySeconds = 1 / 20.0
callDurationTimer = Timer.scheduledTimer(timeInterval: kDurationUpdateFrequencySeconds,
target:self,
selector:#selector(updateCallDuration),
userInfo:nil,
repeats:true)
}
} else {
callDurationTimer?.invalidate()
callDurationTimer = nil
}
}
func updateCallDuration(timer: Timer?) {
updateCallStatusLabel(callState: call.state)
}
// MARK: - Actions
/**
* Ends a connected call. Do not confuse with `didPressDeclineCall`.
*/
func didPressHangup(sender: UIButton) {
Logger.info("\(TAG) called \(#function)")
if let call = self.call {
callUIAdapter.localHangupCall(call)
} else {
Logger.warn("\(TAG) hung up, but call was unexpectedly nil")
}
self.dismiss(animated: true)
}
func didPressMute(sender muteButton: UIButton) {
Logger.info("\(TAG) called \(#function)")
muteButton.isSelected = !muteButton.isSelected
if let call = self.call {
callUIAdapter.setIsMuted(call: call, isMuted: muteButton.isSelected)
} else {
Logger.warn("\(TAG) pressed mute, but call was unexpectedly nil")
}
}
func didPressSpeakerphone(sender speakerphoneButton: UIButton) {
Logger.info("\(TAG) called \(#function)")
speakerphoneButton.isSelected = !speakerphoneButton.isSelected
if let call = self.call {
callUIAdapter.setIsSpeakerphoneEnabled(call: call, isEnabled: speakerphoneButton.isSelected)
} else {
Logger.warn("\(TAG) pressed mute, but call was unexpectedly nil")
}
}
func didPressTextMessage(sender speakerphoneButton: UIButton) {
Logger.info("\(TAG) called \(#function)")
self.dismiss(animated: true)
}
func didPressAnswerCall(sender: UIButton) {
Logger.info("\(TAG) called \(#function)")
guard let call = self.call else {
Logger.error("\(TAG) call was unexpectedly nil. Terminating call.")
self.callStatusLabel.text = NSLocalizedString("END_CALL_UNCATEGORIZED_FAILURE", comment: "Call setup status label")
DispatchQueue.main.asyncAfter(deadline: .now() + 1.5) {
self.dismiss(animated: true)
}
return
}
callUIAdapter.answerCall(call)
}
func didPressVideo(sender: UIButton) {
Logger.info("\(TAG) called \(#function)")
let hasLocalVideo = !sender.isSelected
audioModeVideoButton.isSelected = hasLocalVideo
videoModeVideoButton.isSelected = hasLocalVideo
if let call = self.call {
callUIAdapter.setHasLocalVideo(call: call, hasLocalVideo: hasLocalVideo)
} else {
Logger.warn("\(TAG) pressed video, but call was unexpectedly nil")
}
}
/**
* Denies an incoming not-yet-connected call, Do not confuse with `didPressHangup`.
*/
func didPressDeclineCall(sender: UIButton) {
Logger.info("\(TAG) called \(#function)")
if let call = self.call {
callUIAdapter.declineCall(call)
} else {
Logger.warn("\(TAG) denied call, but call was unexpectedly nil")
}
self.dismiss(animated: true)
}
// MARK: - CallObserver
internal func stateDidChange(call: SignalCall, state: CallState) {
AssertIsOnMainThread()
Logger.info("\(self.TAG) 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)
}
internal func speakerphoneDidChange(call: SignalCall, isEnabled: Bool) {
AssertIsOnMainThread()
self.updateCallUI(callState: call.state)
}
// MARK: - Video
internal func updateLocalVideoTrack(localVideoTrack: RTCVideoTrack?) {
AssertIsOnMainThread()
guard self.localVideoTrack != localVideoTrack else {
return
}
self.localVideoTrack = localVideoTrack
var source: RTCAVFoundationVideoSource?
if localVideoTrack?.source is RTCAVFoundationVideoSource {
source = localVideoTrack?.source as! RTCAVFoundationVideoSource
}
localVideoView.captureSession = source?.captureSession
let isHidden = source == nil
Logger.info("\(TAG) \(#function) isHidden: \(isHidden)")
localVideoView.isHidden = isHidden
updateLocalVideoLayout()
}
internal func updateRemoteVideoTrack(remoteVideoTrack: RTCVideoTrack?) {
AssertIsOnMainThread()
guard self.remoteVideoTrack != remoteVideoTrack else {
return
}
self.remoteVideoTrack?.remove(remoteVideoView)
self.remoteVideoTrack = nil
remoteVideoView.renderFrame(nil)
self.remoteVideoTrack = remoteVideoTrack
self.remoteVideoTrack?.add(remoteVideoView)
if remoteVideoTrack == nil {
remoteVideoSize = CGSize.zero
}
updateRemoteVideoLayout()
}
// MARK: - CallServiceObserver
internal func didUpdateVideoTracks(localVideoTrack: RTCVideoTrack?,
remoteVideoTrack: RTCVideoTrack?) {
AssertIsOnMainThread()
updateLocalVideoTrack(localVideoTrack:localVideoTrack)
updateRemoteVideoTrack(remoteVideoTrack:remoteVideoTrack)
}
// MARK: - RTCEAGLVideoViewDelegate
internal func videoView(_ videoView: RTCEAGLVideoView, didChangeVideoSize size: CGSize) {
AssertIsOnMainThread()
if videoView != remoteVideoView {
return
}
Logger.info("\(TAG) \(#function): \(size)")
remoteVideoSize = size
updateRemoteVideoLayout()
}
}