644 lines
21 KiB
React
644 lines
21 KiB
React
// CallPanel displays call in progress: local and remote viewports and controls.
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import React from 'react';
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import { FormattedMessage, defineMessages, injectIntl } from 'react-intl';
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import LetterTile from './letter-tile.jsx';
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import { MAX_PEER_TITLE_LENGTH } from '../config.js';
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import { CALL_STATE_OUTGOING_INITATED, CALL_STATE_IN_PROGRESS } from '../constants.js';
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import { clipStr } from '../lib/utils.js'
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const RING_SOUND = new Audio('audio/call-out.m4a');
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RING_SOUND.loop = true;
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const CALL_ENDED_SOUND = new Audio('audio/call-end.m4a');
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CALL_ENDED_SOUND.loop = true;
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const DIALING_SOUND = new Audio('audio/dialing.m4a');
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const VIDEO_MUTED_EVENT = 'video:muted';
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const VIDEO_UNMUTED_EVENT = 'video:unmuted';
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const messages = defineMessages({
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already_in_call: {
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id: 'already_in_call',
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defaultMessage: 'You already in an ongoing call!',
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description: 'Error message when the user tried to accept a new call without finishing pervious one',
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}
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});
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class CallPanel extends React.PureComponent {
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constructor(props) {
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super(props);
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this.state = {
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localStream: undefined,
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remoteStream: undefined,
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pc: undefined,
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dataChannel: undefined,
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previousOnInfo: undefined,
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waitingForPeer: false,
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// If true, the client has received a remote SDP from the peer and has sent a local SDP to the peer.
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callInitialSetupComplete: false,
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audioOnly: props.callAudioOnly,
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// Video mute/unmute in progress.
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videoToggleInProgress: false,
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// Indicates if the remote peer has informed us that their camera is on.
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remoteVideoLive: false,
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};
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this.localStreamConstraints = {
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audio: true,
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video: !props.callAudioOnly
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};
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this.isOutgoingCall = props.callState == CALL_STATE_OUTGOING_INITATED;
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this.localRef = React.createRef();
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this.remoteRef = React.createRef();
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// Cache for remote ice candidates until initial setup gets completed.
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this.remoteIceCandidatesCache = [];
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this.onInfo = this.onInfo.bind(this);
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this.start = this.start.bind(this);
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this.stop = this.stop.bind(this);
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this.createPeerConnection = this.createPeerConnection.bind(this);
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this.canSendOffer = this.canSendOffer.bind(this);
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this.drainRemoteIceCandidatesCache = this.drainRemoteIceCandidatesCache.bind(this);
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this.handleNegotiationNeededEvent = this.handleNegotiationNeededEvent.bind(this);
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this.handleICECandidateEvent = this.handleICECandidateEvent.bind(this);
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this.handleNewICECandidateMsg = this.handleNewICECandidateMsg.bind(this);
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this.handleICEConnectionStateChangeEvent = this.handleICEConnectionStateChangeEvent.bind(this);
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this.handleSignalingStateChangeEvent = this.handleSignalingStateChangeEvent.bind(this);
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this.handleICEGatheringStateChangeEvent = this.handleICEGatheringStateChangeEvent.bind(this);
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this.handleIceCandidateErrorEvent = this.handleIceCandidateErrorEvent.bind(this);
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this.handleTrackEvent = this.handleTrackEvent.bind(this);
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this.handleVideoOfferMsg = this.handleVideoOfferMsg.bind(this);
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this.handleVideoAnswerMsg = this.handleVideoAnswerMsg.bind(this);
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this.handleNewICECandidateMsg = this.handleNewICECandidateMsg.bind(this);
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this.reportError = this.reportError.bind(this);
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this.handleGetUserMediaError = this.handleGetUserMediaError.bind(this);
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this.stopTracks = this.stopTracks.bind(this);
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this.disconnectMedia = this.disconnectMedia.bind(this);
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this.handleCloseClick = this.handleCloseClick.bind(this);
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this.handleToggleCameraClick = this.handleToggleCameraClick.bind(this);
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this.handleToggleMicClick = this.handleToggleMicClick.bind(this);
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this.handleRemoteHangup = this.handleRemoteHangup.bind(this);
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this.handleVideoCallAccepted = this.handleVideoCallAccepted.bind(this);
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this.muteVideo = this.muteVideo.bind(this);
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this.unmuteVideo = this.unmuteVideo.bind(this);
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this.emptyVideoTrack = this.emptyVideoTrack.bind(this);
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this.handleDataChannelEvent = this.handleDataChannelEvent.bind(this);
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this.handleDataChannelError = this.handleDataChannelError.bind(this);
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this.handleDataChannelMessage = this.handleDataChannelMessage.bind(this);
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this.handleDataChannelOpen = this.handleDataChannelOpen.bind(this);
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this.handleDataChannelClose = this.handleDataChannelClose.bind(this);
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}
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componentDidMount() {
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const topic = this.props.tinode.getTopic(this.props.topic);
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this.previousOnInfo = topic.onInfo;
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topic.onInfo = this.onInfo;
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if ((this.props.callState == CALL_STATE_OUTGOING_INITATED ||
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this.props.callState == CALL_STATE_IN_PROGRESS) && this.localRef.current) {
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this.start();
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}
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}
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componentWillUnmount() {
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const topic = this.props.tinode.getTopic(this.props.topic);
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topic.onInfo = this.previousOnInfo;
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this.stop();
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}
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handleVideoCallAccepted(info) {
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RING_SOUND.pause();
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const pc = this.createPeerConnection();
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const stream = this.state.localStream;
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stream.getTracks().forEach(track => {
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pc.addTrack(track, stream);
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if (track.kind == 'video' && this.state.audioOnly) {
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// This is an audio-only call.
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// Remove dummy video track (placeholder remains).
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track.enabled = false;
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track.stop();
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stream.removeTrack(track);
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}
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});
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}
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onInfo(info) {
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if (info.what != 'call') {
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return;
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}
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switch (info.event) {
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case 'accept':
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this.handleVideoCallAccepted(info);
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break;
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case 'answer':
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this.handleVideoAnswerMsg(info);
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break;
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case 'ice-candidate':
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this.handleNewICECandidateMsg(info);
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break;
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case 'hang-up':
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this.handleRemoteHangup(info);
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break;
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case 'offer':
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this.handleVideoOfferMsg(info);
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break;
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case 'ringing':
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// play() throws if the user did not click the app first: https://goo.gl/xX8pDD.
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RING_SOUND.play().catch(_ => {});
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break;
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default:
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console.warn("Unknown call event", info.event);
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break;
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}
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}
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// Creates an empty video track placeholder.
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emptyVideoTrack() {
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const width = 640;
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const height = 480;
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const canvas = Object.assign(document.createElement("canvas"), {width, height});
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canvas.getContext('2d').fillRect(0, 0, width, height);
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const stream = canvas.captureStream(0);
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return Object.assign(stream.getVideoTracks()[0], {enabled: false});
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}
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start() {
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if (this.state.localStream) {
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this.props.onError(this.props.intl.formatMessage(messages.already_in_call), 'info');
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return;
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}
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if (this.props.callState == CALL_STATE_IN_PROGRESS) {
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// We apparently just accepted the call.
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this.props.onInvite(this.props.topic, this.props.seq, CALL_STATE_IN_PROGRESS, this.props.callAudioOnly);
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return;
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}
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// This is an outgoing call waiting for the other side to pick up.
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// Start local video.
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navigator.mediaDevices.getUserMedia(this.localStreamConstraints)
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.then(stream => {
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if (!this.localStreamConstraints.video) {
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// Starting an audio-only call. Create a dummy video track
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// (so video can be enabled during the call if the user desires).
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stream.addTrack(this.emptyVideoTrack());
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}
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this.setState({localStream: stream, waitingForPeer: true});
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this.localRef.current.srcObject = stream;
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DIALING_SOUND.play();
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// Send call invitation.
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this.props.onInvite(this.props.topic, this.props.seq, this.props.callState, this.props.callAudioOnly);
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})
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.catch(this.handleGetUserMediaError);
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}
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stop() {
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CALL_ENDED_SOUND.pause();
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CALL_ENDED_SOUND.currentTime = 0;
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RING_SOUND.pause();
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RING_SOUND.currentTime = 0;
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this.stopTracks(this.state.localStream);
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this.stopTracks(this.state.remoteStream);
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this.disconnectMedia(this.localRef.current);
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this.disconnectMedia(this.remoteRef.current);
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if (this.state.pc) {
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this.state.pc.ontrack = null;
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this.state.pc.onremovetrack = null;
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this.state.pc.onremovestream = null;
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this.state.pc.onicecandidate = null;
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this.state.pc.oniceconnectionstatechange = null;
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this.state.pc.onsignalingstatechange = null;
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this.state.pc.onicegatheringstatechange = null;
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this.state.pc.onnegotiationneeded = null;
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this.state.pc.onicecandidateerror = null;
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this.state.pc.ondatachannel = null;
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if (this.state.dataChannel) {
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this.state.dataChannel.close();
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}
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this.state.pc.close();
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}
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this.setState({pc: null, waitingForPeer: false});
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}
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disconnectMedia(el) {
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if (!el) {
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return;
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}
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el.srcObject = null;
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el.src = '';
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}
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stopTracks(stream) {
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if (!stream) {
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return;
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}
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let tracks = stream.getTracks();
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if (tracks) {
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tracks.forEach(track => {
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track.stop();
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track.enabled = false;
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});
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}
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}
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handleDataChannelError(error) {
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console.error('data channel error', error);
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}
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handleDataChannelMessage(event) {
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switch (event.data) {
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case VIDEO_MUTED_EVENT:
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this.setState({remoteVideoLive: false}, _ => { this.remoteRef.current.srcObject = this.state.remoteStream; });
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break;
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case VIDEO_UNMUTED_EVENT:
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this.setState({remoteVideoLive: true}, _ => { this.remoteRef.current.srcObject = this.state.remoteStream; });
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break;
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default:
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break;
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}
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}
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handleDataChannelOpen(event) {
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if (!this.state.audioOnly) {
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event.target.send(VIDEO_UNMUTED_EVENT);
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}
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}
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handleDataChannelClose() {
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/* no action */
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}
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handleDataChannelEvent(event) {
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const channel = event.channel;
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channel.onerror = this.handleDataChannelError;
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channel.onmessage = this.handleDataChannelMessage;
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channel.onopen = this.handleDataChannelOpen;
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channel.onclose = this.handleDataChannelClose;
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this.setState({dataChannel: channel});
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}
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createPeerConnection() {
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const iceServers = this.props.tinode.getServerParam('iceServers', null);
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const pc = iceServers ? new RTCPeerConnection({iceServers: iceServers}) : new RTCPeerConnection();
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pc.onicecandidate = this.handleICECandidateEvent;
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pc.oniceconnectionstatechange = this.handleICEConnectionStateChangeEvent;
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pc.onicegatheringstatechange = this.handleICEGatheringStateChangeEvent;
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pc.onsignalingstatechange = this.handleSignalingStateChangeEvent;
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pc.onnegotiationneeded = this.handleNegotiationNeededEvent;
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pc.onicecandidateerror = this.handleIceCandidateErrorEvent;
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pc.ontrack = this.handleTrackEvent;
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pc.ondatachannel = this.handleDataChannelEvent;
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// creating data channel events
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const channel = pc.createDataChannel("events", {ordered: true});
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channel.onerror = this.handleDataChannelError;
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channel.onmessage = this.handleDataChannelMessage;
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channel.onopen = this.handleDataChannelOpen;
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channel.onclose = this.handleDataChannelClose;
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this.setState({pc: pc, dataChannel: channel, waitingForPeer: false});
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return pc;
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}
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handleVideoAnswerMsg(info) {
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// Configure the remote description, which is the SDP payload
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// in 'info' message.
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const desc = new RTCSessionDescription(info.payload);
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this.state.pc.setRemoteDescription(desc)
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.then(_ => {
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this.setState({ callInitialSetupComplete: true }, _ => this.drainRemoteIceCandidatesCache());
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})
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.catch(err => this.reportError(err));
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}
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reportError(err) {
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this.props.onError(err.message, 'err');
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}
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canSendOffer() {
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return this.isOutgoingCall || this.state.callInitialSetupComplete;
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}
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handleNegotiationNeededEvent(event) {
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const pc = event.target;
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if (!this.canSendOffer()) {
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return;
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}
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pc.createOffer().then(offer => {
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return pc.setLocalDescription(offer);
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})
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.then(_ => {
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this.props.onSendOffer(this.props.topic, this.props.seq, pc.localDescription.toJSON());
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})
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.catch(err => this.reportError(err));
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}
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handleIceCandidateErrorEvent(event) {
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console.warn("ICE candidate error:", event);
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}
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handleICECandidateEvent(event) {
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if (event.candidate) {
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this.props.onIceCandidate(this.props.topic, this.props.seq, event.candidate.toJSON());
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}
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}
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handleNewICECandidateMsg(info) {
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const candidate = new RTCIceCandidate(info.payload);
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if (this.state.callInitialSetupComplete) {
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this.state.pc.addIceCandidate(candidate)
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.catch(err => {
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if (candidate.candidate) {
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this.reportError(err);
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}
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console.warn("Error adding new ice candidate", candidate, err);
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});
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} else {
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this.remoteIceCandidatesCache.push(candidate);
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}
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}
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drainRemoteIceCandidatesCache() {
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this.remoteIceCandidatesCache.forEach(candidate => {
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this.state.pc.addIceCandidate(candidate)
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.catch(err => {
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if (candidate.candidate) {
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this.reportError(err);
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}
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console.warn("Error adding cached ice candidate", candidate, err);
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});
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});
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this.remoteIceCandidatesCache = [];
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}
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handleICEConnectionStateChangeEvent(event) {
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switch (event.target.iceConnectionState) {
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case 'closed':
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case 'failed':
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this.handleCloseClick();
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break;
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}
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}
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handleSignalingStateChangeEvent(event) {
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if (event.target.signalingState == 'closed') {
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this.handleCloseClick();
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}
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}
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handleICEGatheringStateChangeEvent(event) {
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// ICE gathering change state
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}
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handleTrackEvent(event) {
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// Remote video becomes available.
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this.remoteRef.current.srcObject = event.streams[0];
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this.setState({remoteStream: event.streams[0]});
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}
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handleGetUserMediaError(e) {
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console.error("Error opening camera and/or microphone", e);
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switch(e.name) {
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case 'NotFoundError':
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// Cannot start the call b/c no camera and/or microphone found.
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this.reportError(e);
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break;
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case 'SecurityError':
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case 'PermissionDeniedError':
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// Do nothing; this is the same as the user canceling the call.
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break;
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default:
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this.reportError(e);
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break;
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}
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// Make sure we shut down our end of the RTCPeerConnection so we're
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// ready to try again.
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this.handleCloseClick();
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}
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handleVideoOfferMsg(info) {
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let localStream = null;
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const pc = this.state.pc ? this.state.pc : this.createPeerConnection();
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const desc = new RTCSessionDescription(info.payload);
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pc.setRemoteDescription(desc).then(_ => {
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return navigator.mediaDevices.getUserMedia(this.localStreamConstraints);
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})
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.then(stream => {
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let dummyVideo;
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if (!this.localStreamConstraints.video) {
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// Starting an audio-only call. Create an empty video track so
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// so the user can enable the video during the call.
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dummyVideo = this.emptyVideoTrack();
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stream.addTrack(dummyVideo);
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}
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localStream = stream;
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this.localRef.current.srcObject = stream;
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this.setState({localStream: stream});
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localStream.getTracks().forEach(track => {
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pc.addTrack(track, localStream);
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});
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if (dummyVideo) {
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dummyVideo.enabled = false;
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dummyVideo.stop();
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stream.removeTrack(dummyVideo);
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}
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})
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.then(_ => {
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return pc.createAnswer();
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})
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.then(answer => {
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return pc.setLocalDescription(answer);
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})
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.then(_ => {
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this.props.onSendAnswer(this.props.topic, this.props.seq, pc.localDescription.toJSON());
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this.setState({ callInitialSetupComplete: true }, _ => this.drainRemoteIceCandidatesCache());
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})
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.catch(this.handleGetUserMediaError);
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}
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// Call disconnected by remote.
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handleRemoteHangup() {
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if (!this.state.waitingForPeer) {
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// This is live call, just hang up.
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this.handleCloseClick();
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} else {
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// This is a call which is not yet connected.
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// Stop pulse animation.
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this.setState({waitingForPeer: false});
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// Change sound and wait a bit before ending it.
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RING_SOUND.pause();
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RING_SOUND.currentTime = 0;
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CALL_ENDED_SOUND.loop = true;
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CALL_ENDED_SOUND.play().catch(_ => {});
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setTimeout(_ => {
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this.handleCloseClick();
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}, 2000);
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}
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}
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handleCloseClick() {
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this.stop();
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this.props.onHangup(this.props.topic, this.props.seq);
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}
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// Ends video track and turns off the camera.
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muteVideo() {
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if (!this.state.pc || !this.state.dataChannel) {
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return;
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}
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const stream = this.state.localStream;
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const t = stream.getVideoTracks()[0];
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t.enabled = false;
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|
t.stop();
|
|
|
|
stream.removeTrack(t);
|
|
this.state.dataChannel.send(VIDEO_MUTED_EVENT);
|
|
this.setState({videoToggleInProgress: false});
|
|
}
|
|
|
|
unmuteVideo() {
|
|
if (!this.state.pc || !this.state.dataChannel) {
|
|
return;
|
|
}
|
|
navigator.mediaDevices.getUserMedia({ video: true })
|
|
.then(stream => {
|
|
// Will extract video track from stream and throw stream away,
|
|
// and replace video track in the media sender.
|
|
this.localRef.current.srcObject = null;
|
|
const sender = this.state.pc.getSenders().find(s => s.track.kind == 'video');
|
|
const track = stream.getVideoTracks()[0];
|
|
// Remote track from new stream.
|
|
stream.removeTrack(track);
|
|
// Add this track to the existing local stream.
|
|
this.state.localStream.addTrack(track);
|
|
return sender.replaceTrack(track);
|
|
})
|
|
.then(_ => {
|
|
this.localRef.current.srcObject = this.state.localStream;
|
|
this.state.dataChannel.send(VIDEO_UNMUTED_EVENT);
|
|
})
|
|
.catch(err => this.handleGetUserMediaError(err))
|
|
.finally(_ => { this.setState({videoToggleInProgress: false}); }); // Make sure we redraw the mute/unmute icons (e.g. camera -> camera_off).
|
|
}
|
|
|
|
handleToggleCameraClick() {
|
|
if (this.state.videoToggleInProgress) {
|
|
// Toggle currently in progress.
|
|
return;
|
|
}
|
|
const tracks = this.state.localStream.getVideoTracks();
|
|
this.setState({videoToggleInProgress: true}, _ => {
|
|
if (tracks && tracks.length > 0 && tracks[0].enabled && tracks[0].readyState == 'live') {
|
|
this.muteVideo();
|
|
} else {
|
|
this.unmuteVideo();
|
|
}
|
|
this.setState({audioOnly: !this.state.audioOnly});
|
|
});
|
|
}
|
|
|
|
handleToggleMicClick() {
|
|
const stream = this.state.localStream;
|
|
const t = stream.getAudioTracks()[0];
|
|
t.enabled = !t.enabled;
|
|
// Make sure we redraw the mute/unmute icons (e.g. mic -> mic_off).
|
|
this.forceUpdate();
|
|
}
|
|
|
|
render() {
|
|
const audioTracks = this.state.localStream && this.state.localStream.getAudioTracks();
|
|
const videoTracks = !this.state.audioOnly && this.state.localStream && this.state.localStream.getVideoTracks();
|
|
const disabled = !this.state.pc || !this.state.dataChannel || !(audioTracks && audioTracks[0]);
|
|
const audioIcon = audioTracks && audioTracks[0] && audioTracks[0].enabled ? 'mic' : 'mic_off';
|
|
const videoIcon = videoTracks && videoTracks[0] && videoTracks[0].enabled && videoTracks[0].readyState == 'live' ? 'videocam' : 'videocam_off';
|
|
const peerTitle = clipStr(this.props.title, MAX_PEER_TITLE_LENGTH);
|
|
const pulseAnimation = this.state.waitingForPeer ? ' pulse' : '';
|
|
|
|
let remoteActive = false;
|
|
if (this.remoteRef.current && this.remoteRef.current.srcObject && this.state.remoteVideoLive) {
|
|
const rstream = this.remoteRef.current.srcObject;
|
|
if (rstream.getVideoTracks().length > 0) {
|
|
const t = rstream.getVideoTracks()[0];
|
|
remoteActive = t.enabled && t.readyState == 'live';
|
|
}
|
|
}
|
|
|
|
return (
|
|
<>
|
|
<div id="video-container">
|
|
<div id="video-container-panel">
|
|
<div className="call-party self" disabled={this.state.audioOnly}>
|
|
<video ref={this.localRef} autoPlay muted playsInline />
|
|
<div className="caller-name inactive">
|
|
<FormattedMessage id="calls_you_label"
|
|
defaultMessage="You" description="Shown over the local video screen" />
|
|
</div>
|
|
</div>
|
|
<div className="call-party peer" disabled={!remoteActive}>
|
|
{remoteActive ?
|
|
<>
|
|
<video ref={this.remoteRef} autoPlay playsInline />
|
|
<div className="caller-name inactive">{peerTitle}</div>
|
|
</> :
|
|
<>
|
|
<audio ref={this.remoteRef} autoPlay />
|
|
<div className={`caller-card${pulseAnimation}`}>
|
|
<div className="avatar-box">
|
|
<LetterTile
|
|
tinode={this.props.tinode}
|
|
avatar={this.props.avatar}
|
|
topic={this.props.topic}
|
|
title={this.props.title} />
|
|
</div>
|
|
<div className="caller-name">{peerTitle}</div>
|
|
</div>
|
|
</>
|
|
}
|
|
</div>
|
|
</div>
|
|
<div className="controls">
|
|
<button className="danger" onClick={this.handleCloseClick}>
|
|
<i className="material-icons">call_end</i>
|
|
</button>
|
|
<button className="secondary" onClick={this.handleToggleCameraClick} disabled={disabled}>
|
|
<i className="material-icons">{videoIcon}</i>
|
|
</button>
|
|
<button className="secondary" onClick={this.handleToggleMicClick} disabled={disabled}>
|
|
<i className="material-icons">{audioIcon}</i>
|
|
</button>
|
|
</div>
|
|
</div>
|
|
</>
|
|
);
|
|
}
|
|
};
|
|
|
|
export default injectIntl(CallPanel);
|