mirror of
https://github.com/oxen-io/session-ios.git
synced 2023-12-13 21:30:14 +01:00
562 lines
21 KiB
Swift
562 lines
21 KiB
Swift
//
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// Copyright (c) 2017 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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// TODO: Add category so that button handlers can be defined where button is created.
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// TODO: Add logic to button handlers.
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// TODO: Ensure buttons enabled & disabled as necessary.
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@objc(OWSCallViewController)
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class CallViewController: UIViewController, CallDelegate {
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enum CallDirection {
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case unspecified, outgoing, incoming
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}
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let TAG = "[CallViewController]"
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// Dependencies
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let callUIAdapter: CallUIAdapter
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let contactsManager: OWSContactsManager
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let audioService: CallAudioService
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// MARK: Properties
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var peerConnectionClient: PeerConnectionClient?
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var callDirection: CallDirection = .unspecified
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var thread: TSContactThread!
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var call: SignalCall!
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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: UILabel!
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var contactAvatarView: AvatarImageView!
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var callStatusLabel: UILabel!
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var callDurationTimer: Timer?
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// MARK: Ongoing Call Controls
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var ongoingCallView: UIView!
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var hangUpButton: UIButton!
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var muteButton: UIButton!
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var speakerPhoneButton: UIButton!
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var textMessageButton: UIButton!
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var videoButton: UIButton!
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// MARK: Incoming Call Controls
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var incomingCallView: UIView!
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var acceptIncomingButton: UIButton!
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var declineIncomingButton: UIButton!
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// MARK: Control Groups
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var allControls: [UIView] {
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return incomingCallControls + ongoingCallControls
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}
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var incomingCallControls: [UIView] {
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return [ acceptIncomingButton, declineIncomingButton ]
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}
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var ongoingCallControls: [UIView] {
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return [ muteButton, speakerPhoneButton, textMessageButton, hangUpButton, videoButton ]
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}
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// MARK: Initializers
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required init?(coder aDecoder: NSCoder) {
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contactsManager = Environment.getCurrent().contactsManager
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let callService = Environment.getCurrent().callService!
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callUIAdapter = callService.callUIAdapter
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audioService = CallAudioService()
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super.init(coder: aDecoder)
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}
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required init() {
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contactsManager = Environment.getCurrent().contactsManager
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let callService = Environment.getCurrent().callService!
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callUIAdapter = callService.callUIAdapter
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audioService = CallAudioService()
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super.init(nibName: nil, bundle: nil)
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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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updateCallUI(callState: call.state)
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}
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override func viewDidLoad() {
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super.viewDidLoad()
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guard let thread = self.thread else {
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Logger.error("\(TAG) tried to show call call without specifying thread.")
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showCallFailed(error: OWSErrorMakeAssertionError())
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return
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}
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createViews()
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contactNameLabel.text = contactsManager.displayName(forPhoneIdentifier: thread.contactIdentifier())
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contactAvatarView.image = OWSAvatarBuilder.buildImage(for: thread, contactsManager: contactsManager)
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switch callDirection {
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case .unspecified:
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Logger.error("\(TAG) must set call direction before call starts.")
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showCallFailed(error: OWSErrorMakeAssertionError())
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case .outgoing:
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self.call = self.callUIAdapter.startOutgoingCall(handle: thread.contactIdentifier())
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case .incoming:
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Logger.error("\(TAG) handling Incoming call")
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// No-op, since call service is already set up at this point, the result of which was presenting this viewController.
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}
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call.delegate = self
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stateDidChange(call: call, state: call.state)
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}
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func createViews() {
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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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self.view.addSubview(blurView)
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createContactViews()
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createOngoingCallControls()
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createIncomingCallControls()
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}
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func createContactViews() {
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contactNameLabel = UILabel()
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contactNameLabel.font = UIFont.ows_lightFont(withSize:ScaleFromIPhone5To7Plus(32, 40))
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contactNameLabel.textColor = UIColor.white
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self.view.addSubview(contactNameLabel)
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callStatusLabel = UILabel()
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callStatusLabel.font = UIFont.ows_regularFont(withSize:ScaleFromIPhone5To7Plus(19, 25))
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callStatusLabel.textColor = UIColor.white
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self.view.addSubview(callStatusLabel)
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contactAvatarView = AvatarImageView()
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self.view.addSubview(contactAvatarView)
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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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textMessageButton = createButton(imageName:"message-active-wide",
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action:#selector(didPressTextMessage))
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muteButton = createButton(imageName:"mute-unselected-wide",
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action:#selector(didPressMute))
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speakerPhoneButton = createButton(imageName:"speaker-active-wide",
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action:#selector(didPressSpeakerphone))
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videoButton = createButton(imageName:"video-inactive-wide",
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action:#selector(didPressVideo))
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hangUpButton = createButton(imageName:"hangup-active-wide",
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action:#selector(didPressHangup))
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let muteSelectedImage = UIImage(named:"mute-selected-wide")
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assert(muteSelectedImage != nil)
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muteButton.setImage(muteSelectedImage, for:.selected)
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let videoSelectedImage = UIImage(named:"video-active-wide")
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assert(videoSelectedImage != nil)
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videoButton.setImage(videoSelectedImage, for:.selected)
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ongoingCallView = createContainerForCallControls(controlGroups : [
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[textMessageButton, videoButton],
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[muteButton, speakerPhoneButton ],
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[hangUpButton ]
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])
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}
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func createIncomingCallControls() {
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acceptIncomingButton = createButton(imageName:"call-active-wide",
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action:#selector(didPressAnswerCall))
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declineIncomingButton = createButton(imageName:"hangup-active-wide",
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action:#selector(didPressDeclineCall))
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incomingCallView = createContainerForCallControls(controlGroups : [
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[acceptIncomingButton, declineIncomingButton ]
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])
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}
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func createContainerForCallControls(controlGroups: [[UIView]]) -> UIView {
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let containerView = UIView()
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self.view.addSubview(containerView)
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var rows: [UIView] = []
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for controlGroup in controlGroups {
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rows.append(rowWithSubviews(subviews:controlGroup))
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}
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let rowspacing = ScaleFromIPhone5To7Plus(6, 7)
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var prevRow: UIView?
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for row in rows {
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containerView.addSubview(row)
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row.autoPinWidthToSuperview()
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if prevRow != nil {
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row.autoPinEdge(.top, to:.bottom, of:prevRow!, withOffset:rowspacing)
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}
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prevRow = row
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}
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containerView.setContentHuggingVerticalHigh()
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rows.first!.autoPinEdge(toSuperviewEdge:.top)
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rows.last!.autoPinEdge(toSuperviewEdge:.bottom)
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return containerView
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}
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func createButton(imageName: String, action: Selector) -> UIButton {
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let image = UIImage(named:imageName)
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assert(image != nil)
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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())
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button.autoSetDimension(.height, toSize:buttonSize())
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return button
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}
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// Creates a row containing a given set of subviews.
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func rowWithSubviews(subviews: [UIView]) -> UIView {
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let row = UIView()
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row.setContentHuggingVerticalHigh()
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row.autoSetDimension(.height, toSize:buttonSize())
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if subviews.count > 1 {
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// If there's more than one subview in the row,
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// space them evenly within the row.
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var lastSubview: UIView?
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var lastSpacer: UIView?
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for subview in subviews {
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row.addSubview(subview)
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subview.setContentHuggingHorizontalHigh()
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subview.autoVCenterInSuperview()
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if lastSubview != nil {
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let spacer = UIView()
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spacer.isHidden = true
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row.addSubview(spacer)
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spacer.autoPinEdge(.left, to:.right, of:lastSubview!)
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spacer.autoPinEdge(.right, to:.left, of:subview)
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spacer.setContentHuggingHorizontalLow()
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spacer.autoVCenterInSuperview()
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if lastSpacer != nil {
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spacer.autoMatch(.width, to:.width, of:lastSpacer!)
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}
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lastSpacer = spacer
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}
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lastSubview = subview
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}
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subviews.first!.autoPinEdge(toSuperviewEdge:.left)
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subviews.last!.autoPinEdge(toSuperviewEdge:.right)
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} else if subviews.count == 1 {
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// If there's only one subview in this row, center it.
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let subview = subviews.first!
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row.addSubview(subview)
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subview.autoCenterInSuperview()
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}
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return row
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}
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override func updateViewConstraints() {
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if !hasConstraints {
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// We only want to create our constraints once.
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//
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// Note that constraints are also created elsewhere.
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// This only creates the constraints for the top-level contents of the view.
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hasConstraints = true
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let topMargin = CGFloat(40)
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let contactHMargin = CGFloat(30)
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let contactVSpacing = CGFloat(3)
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let ongoingHMargin = ScaleFromIPhone5To7Plus(46, 72)
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let incomingHMargin = ScaleFromIPhone5To7Plus(46, 72)
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let ongoingBottomMargin = ScaleFromIPhone5To7Plus(23, 41)
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let incomingBottomMargin = CGFloat(41)
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let avatarTopSpacing = ScaleFromIPhone5To7Plus(25, 50)
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// The buttons have built-in 10% margins, so to appear centered
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// the avatar's bottom spacing should be a bit less.
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let avatarBottomSpacing = ScaleFromIPhone5To7Plus(18, 41)
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// Dark blurred background.
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blurView.autoPinEdgesToSuperviewEdges()
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contactNameLabel.autoPinEdge(toSuperviewEdge:.top, withInset:topMargin)
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contactNameLabel.autoPinWidthToSuperview(withMargin:contactHMargin)
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contactNameLabel.setContentHuggingVerticalHigh()
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callStatusLabel.autoPinEdge(.top, to:.bottom, of:contactNameLabel, withOffset:contactVSpacing)
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callStatusLabel.autoPinWidthToSuperview(withMargin:contactHMargin)
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callStatusLabel.setContentHuggingVerticalHigh()
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contactAvatarView.autoPinEdge(.top, to:.bottom, of:callStatusLabel, withOffset:+avatarTopSpacing)
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contactAvatarView.autoPinEdge(.bottom, to:.top, of:ongoingCallView, withOffset:-avatarBottomSpacing)
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contactAvatarView.autoHCenterInSuperview()
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// Stretch that avatar to fill the available space.
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contactAvatarView.setContentHuggingLow()
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contactAvatarView.setCompressionResistanceLow()
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// Preserve square aspect ratio of contact avatar.
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contactAvatarView.autoMatch(.width, to:.height, of:contactAvatarView)
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// Ongoing call controls
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ongoingCallView.autoPinEdge(toSuperviewEdge:.bottom, withInset:ongoingBottomMargin)
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ongoingCallView.autoPinWidthToSuperview(withMargin:ongoingHMargin)
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ongoingCallView.setContentHuggingVerticalHigh()
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// Incoming call controls
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incomingCallView.autoPinEdge(toSuperviewEdge:.bottom, withInset:incomingBottomMargin)
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incomingCallView.autoPinWidthToSuperview(withMargin:incomingHMargin)
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incomingCallView.setContentHuggingVerticalHigh()
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}
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super.updateViewConstraints()
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}
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// objc accessible way to set our swift enum.
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func setOutgoingCallDirection() {
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callDirection = .outgoing
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}
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// objc accessible way to set our swift enum.
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func setIncomingCallDirection() {
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callDirection = .incoming
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}
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func showCallFailed(error: Error) {
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// TODO Show something in UI.
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Logger.error("\(TAG) call failed with error: \(error)")
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}
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func localizedTextForCallState(_ callState: CallState) -> String {
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assert(Thread.isMainThread)
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switch callState {
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case .idle, .remoteHangup, .localHangup:
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return NSLocalizedString("IN_CALL_TERMINATED", comment: "Call setup status label")
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case .dialing:
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return NSLocalizedString("IN_CALL_CONNECTING", comment: "Call setup status label")
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case .remoteRinging, .localRinging:
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return NSLocalizedString("IN_CALL_RINGING", comment: "Call setup status label")
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case .answering:
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return NSLocalizedString("IN_CALL_SECURING", comment: "Call setup status label")
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case .connected:
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if let call = self.call {
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let callDuration = call.connectionDuration()
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let callDurationDate = Date(timeIntervalSinceReferenceDate:callDuration)
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if dateFormatter == nil {
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dateFormatter = DateFormatter()
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dateFormatter!.dateFormat = "HH:mm:ss"
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dateFormatter!.timeZone = TimeZone(identifier:"UTC")!
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}
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var formattedDate = dateFormatter!.string(from: callDurationDate)
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if formattedDate.hasPrefix("00:") {
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// Don't show the "hours" portion of the date format unless the
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// call duration is at least 1 hour.
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formattedDate = formattedDate.substring(from: formattedDate.index(formattedDate.startIndex, offsetBy: 3))
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} else {
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// If showing the "hours" portion of the date format, strip any leading
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// zeroes.
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if formattedDate.hasPrefix("0") {
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formattedDate = formattedDate.substring(from: formattedDate.index(formattedDate.startIndex, offsetBy: 1))
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}
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}
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return formattedDate
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} else {
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return NSLocalizedString("IN_CALL_TALKING", comment: "Call setup status label")
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}
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case .remoteBusy:
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return NSLocalizedString("END_CALL_RESPONDER_IS_BUSY", comment: "Call setup status label")
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case .localFailure:
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return NSLocalizedString("END_CALL_UNCATEGORIZED_FAILURE", comment: "Call setup status label")
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}
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}
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func updateCallStatusLabel(callState: CallState) {
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assert(Thread.isMainThread)
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self.callStatusLabel.text = localizedTextForCallState(callState)
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}
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func updateCallUI(callState: CallState) {
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assert(Thread.isMainThread)
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updateCallStatusLabel(callState: callState)
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videoButton.isSelected = call.hasVideo
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muteButton.isSelected = call.isMuted
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// Show Incoming vs. Ongoing call controls
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let isRinging = callState == .localRinging
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incomingCallView.isHidden = !isRinging
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incomingCallView.isUserInteractionEnabled = isRinging
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ongoingCallView.isHidden = isRinging
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ongoingCallView.isUserInteractionEnabled = !isRinging
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// Dismiss Handling
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switch callState {
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case .remoteHangup, .remoteBusy, .localFailure:
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Logger.debug("\(TAG) dismissing after delay because new state is \(callState)")
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DispatchQueue.main.asyncAfter(deadline: .now() + 1.5) {
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self.dismiss(animated: true)
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}
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case .localHangup:
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Logger.debug("\(TAG) dismissing immediately from local hangup")
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self.dismiss(animated: true)
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default: break
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}
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if callState == .connected {
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if callDurationTimer == nil {
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let kDurationUpdateFrequencySeconds = 1 / 20.0
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callDurationTimer = Timer.scheduledTimer(timeInterval: kDurationUpdateFrequencySeconds,
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target:self,
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selector:#selector(updateCallDuration),
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userInfo:nil,
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repeats:true)
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}
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} else {
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callDurationTimer?.invalidate()
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callDurationTimer = nil
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}
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}
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func updateCallDuration(timer: Timer?) {
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updateCallStatusLabel(callState: call.state)
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}
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// MARK: - Actions
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/**
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* Ends a connected call. Do not confuse with `didPressDeclineCall`.
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*/
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func didPressHangup(sender: UIButton) {
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Logger.info("\(TAG) called \(#function)")
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if let call = self.call {
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callUIAdapter.endCall(call)
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} else {
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Logger.warn("\(TAG) hung up, but call was unexpectedly nil")
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}
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self.dismiss(animated: true)
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}
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func didPressMute(sender muteButton: UIButton) {
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Logger.info("\(TAG) called \(#function)")
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muteButton.isSelected = !muteButton.isSelected
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if let call = self.call {
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callUIAdapter.setIsMuted(call: call, isMuted: muteButton.isSelected)
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} else {
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Logger.warn("\(TAG) pressed mute, but call was unexpectedly nil")
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}
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}
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func didPressSpeakerphone(sender speakerphoneButton: UIButton) {
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Logger.info("\(TAG) called \(#function)")
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speakerphoneButton.isSelected = !speakerphoneButton.isSelected
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audioService.isSpeakerphoneEnabled = speakerphoneButton.isSelected
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}
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func didPressTextMessage(sender speakerphoneButton: UIButton) {
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Logger.info("\(TAG) called \(#function)")
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self.dismiss(animated: true)
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}
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func didPressAnswerCall(sender: UIButton) {
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Logger.info("\(TAG) called \(#function)")
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guard let call = self.call else {
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Logger.error("\(TAG) call was unexpectedly nil. Terminating call.")
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self.callStatusLabel.text = NSLocalizedString("END_CALL_UNCATEGORIZED_FAILURE", comment: "Call setup status label")
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DispatchQueue.main.asyncAfter(deadline: .now() + 1.5) {
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self.dismiss(animated: true)
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}
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return
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}
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callUIAdapter.answerCall(call)
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}
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func didPressVideo(sender: UIButton) {
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Logger.info("\(TAG) called \(#function)")
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videoButton.isSelected = !videoButton.isSelected
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if let call = self.call {
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|
callUIAdapter.setHasVideo(call: call, hasVideo: videoButton.isSelected)
|
|
} 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: - CallDelegate
|
|
|
|
internal func stateDidChange(call: SignalCall, state: CallState) {
|
|
DispatchQueue.main.async {
|
|
Logger.info("\(self.TAG) new call status: \(state)")
|
|
self.updateCallUI(callState: state)
|
|
}
|
|
self.audioService.handleState(state)
|
|
}
|
|
|
|
internal func hasVideoDidChange(call: SignalCall, hasVideo: Bool) {
|
|
DispatchQueue.main.async {
|
|
self.updateCallUI(callState: call.state)
|
|
}
|
|
}
|
|
|
|
internal func muteDidChange(call: SignalCall, isMuted: Bool) {
|
|
DispatchQueue.main.async {
|
|
self.updateCallUI(callState: call.state)
|
|
}
|
|
}
|
|
}
|