jiti-meet/conference.js

3306 lines
120 KiB
JavaScript

/* global APP, JitsiMeetJS, config, interfaceConfig */
import { jitsiLocalStorage } from '@jitsi/js-utils';
import Logger from '@jitsi/logger';
import EventEmitter from 'events';
import { openConnection } from './connection';
import { ENDPOINT_TEXT_MESSAGE_NAME } from './modules/API/constants';
import { AUDIO_ONLY_SCREEN_SHARE_NO_TRACK } from './modules/UI/UIErrors';
import AuthHandler from './modules/UI/authentication/AuthHandler';
import UIUtil from './modules/UI/util/UIUtil';
import VideoLayout from './modules/UI/videolayout/VideoLayout';
import mediaDeviceHelper from './modules/devices/mediaDeviceHelper';
import Recorder from './modules/recorder/Recorder';
import { createTaskQueue } from './modules/util/helpers';
import {
createDeviceChangedEvent,
createStartSilentEvent,
createScreenSharingEvent,
createTrackMutedEvent,
sendAnalytics
} from './react/features/analytics';
import {
maybeRedirectToWelcomePage,
redirectToStaticPage,
reloadWithStoredParams
} from './react/features/app/actions';
import { showModeratedNotification } from './react/features/av-moderation/actions';
import { shouldShowModeratedNotification } from './react/features/av-moderation/functions';
import { setAudioOnly } from './react/features/base/audio-only';
import {
AVATAR_URL_COMMAND,
EMAIL_COMMAND,
_conferenceWillJoin,
authStatusChanged,
commonUserJoinedHandling,
commonUserLeftHandling,
conferenceFailed,
conferenceJoined,
conferenceJoinInProgress,
conferenceLeft,
conferenceSubjectChanged,
conferenceTimestampChanged,
conferenceUniqueIdSet,
conferenceWillJoin,
conferenceWillLeave,
dataChannelOpened,
e2eRttChanged,
getConferenceOptions,
kickedOut,
lockStateChanged,
onStartMutedPolicyChanged,
p2pStatusChanged,
sendLocalParticipant,
nonParticipantMessageReceived
} from './react/features/base/conference';
import {
getReplaceParticipant,
getMultipleVideoSendingSupportFeatureFlag
} from './react/features/base/config/functions';
import {
checkAndNotifyForNewDevice,
getAvailableDevices,
getDefaultDeviceId,
notifyCameraError,
notifyMicError,
setAudioOutputDeviceId,
updateDeviceList
} from './react/features/base/devices';
import {
browser,
JitsiConferenceErrors,
JitsiConferenceEvents,
JitsiConnectionErrors,
JitsiConnectionEvents,
JitsiE2ePingEvents,
JitsiMediaDevicesEvents,
JitsiParticipantConnectionStatus,
JitsiTrackErrors,
JitsiTrackEvents
} from './react/features/base/lib-jitsi-meet';
import { isFatalJitsiConnectionError } from './react/features/base/lib-jitsi-meet/functions';
import {
getStartWithAudioMuted,
getStartWithVideoMuted,
isVideoMutedByUser,
MEDIA_TYPE,
setAudioAvailable,
setAudioMuted,
setAudioUnmutePermissions,
setVideoAvailable,
setVideoMuted,
setVideoUnmutePermissions
} from './react/features/base/media';
import {
dominantSpeakerChanged,
getLocalParticipant,
getNormalizedDisplayName,
getVirtualScreenshareParticipantByOwnerId,
localParticipantAudioLevelChanged,
localParticipantConnectionStatusChanged,
localParticipantRoleChanged,
participantConnectionStatusChanged,
participantKicked,
participantMutedUs,
participantPresenceChanged,
participantRoleChanged,
participantUpdated,
screenshareParticipantDisplayNameChanged,
updateRemoteParticipantFeatures
} from './react/features/base/participants';
import {
getUserSelectedCameraDeviceId,
updateSettings
} from './react/features/base/settings';
import {
addLocalTrack,
createLocalPresenterTrack,
createLocalTracksF,
destroyLocalTracks,
getLocalJitsiAudioTrack,
getLocalJitsiVideoTrack,
getLocalTracks,
getLocalVideoTrack,
isLocalCameraTrackMuted,
isLocalTrackMuted,
isUserInteractionRequiredForUnmute,
replaceLocalTrack,
trackAdded,
trackRemoved
} from './react/features/base/tracks';
import { downloadJSON } from './react/features/base/util/downloadJSON';
import { showDesktopPicker } from './react/features/desktop-picker';
import { appendSuffix } from './react/features/display-name';
import {
maybeOpenFeedbackDialog,
submitFeedback
} from './react/features/feedback';
import { maybeSetLobbyChatMessageListener } from './react/features/lobby/actions.any';
import {
isModerationNotificationDisplayed,
showNotification,
NOTIFICATION_TIMEOUT_TYPE
} from './react/features/notifications';
import { mediaPermissionPromptVisibilityChanged, toggleSlowGUMOverlay } from './react/features/overlay';
import { suspendDetected } from './react/features/power-monitor';
import {
initPrejoin,
isPrejoinPageVisible,
makePrecallTest,
setJoiningInProgress
} from './react/features/prejoin';
import { disableReceiver, stopReceiver } from './react/features/remote-control';
import { setScreenAudioShareState, isScreenAudioShared } from './react/features/screen-share/';
import { toggleScreenshotCaptureSummary } from './react/features/screenshot-capture';
import { isScreenshotCaptureEnabled } from './react/features/screenshot-capture/functions';
import { AudioMixerEffect } from './react/features/stream-effects/audio-mixer/AudioMixerEffect';
import { createPresenterEffect } from './react/features/stream-effects/presenter';
import { createRnnoiseProcessor } from './react/features/stream-effects/rnnoise';
import { endpointMessageReceived } from './react/features/subtitles';
import { muteLocal } from './react/features/video-menu/actions.any';
import UIEvents from './service/UI/UIEvents';
const logger = Logger.getLogger(__filename);
const eventEmitter = new EventEmitter();
let room;
let connection;
/**
* The promise is used when the prejoin screen is shown.
* While the user configures the devices the connection can be made.
*
* @type {Promise<Object>}
* @private
*/
let _connectionPromise;
/**
* We are storing the resolve function of a Promise that waits for the _connectionPromise to be created. This is needed
* when the prejoin button was pressed before the conference object was initialized and the _connectionPromise has not
* been initialized when we tried to execute prejoinStart. In this case in prejoinStart we create a new Promise, assign
* the resolve function to this variable and wait for the promise to resolve before we continue. The
* _onConnectionPromiseCreated will be called once the _connectionPromise is created.
*/
let _onConnectionPromiseCreated;
/**
* This promise is used for chaining mutePresenterVideo calls in order to avoid calling GUM multiple times if it takes
* a while to finish.
*
* @type {Promise<void>}
* @private
*/
let _prevMutePresenterVideo = Promise.resolve();
/*
* Logic to open a desktop picker put on the window global for
* lib-jitsi-meet to detect and invoke
*/
window.JitsiMeetScreenObtainer = {
openDesktopPicker(options, onSourceChoose) {
APP.store.dispatch(showDesktopPicker(options, onSourceChoose));
}
};
/**
* Known custom conference commands.
*/
const commands = {
AVATAR_URL: AVATAR_URL_COMMAND,
CUSTOM_ROLE: 'custom-role',
EMAIL: EMAIL_COMMAND,
ETHERPAD: 'etherpad'
};
/**
* Open Connection. When authentication failed it shows auth dialog.
* @param roomName the room name to use
* @returns Promise<JitsiConnection>
*/
function connect(roomName) {
return openConnection({
retry: true,
roomName
})
.catch(err => {
if (err === JitsiConnectionErrors.PASSWORD_REQUIRED) {
APP.UI.notifyTokenAuthFailed();
} else {
APP.UI.notifyConnectionFailed(err);
}
throw err;
});
}
/**
* Share data to other users.
* @param command the command
* @param {string} value new value
*/
function sendData(command, value) {
if (!room) {
return;
}
room.removeCommand(command);
room.sendCommand(command, { value });
}
/**
* Mute or unmute local audio stream if it exists.
* @param {boolean} muted - if audio stream should be muted or unmuted.
*/
function muteLocalAudio(muted) {
APP.store.dispatch(setAudioMuted(muted));
}
/**
* Mute or unmute local video stream if it exists.
* @param {boolean} muted if video stream should be muted or unmuted.
*
*/
function muteLocalVideo(muted) {
APP.store.dispatch(setVideoMuted(muted));
}
/**
* A queue for the async replaceLocalTrack action so that multiple audio
* replacements cannot happen simultaneously. This solves the issue where
* replaceLocalTrack is called multiple times with an oldTrack of null, causing
* multiple local tracks of the same type to be used.
*
* @private
* @type {Object}
*/
const _replaceLocalAudioTrackQueue = createTaskQueue();
/**
* A task queue for replacement local video tracks. This separate queue exists
* so video replacement is not blocked by audio replacement tasks in the queue
* {@link _replaceLocalAudioTrackQueue}.
*
* @private
* @type {Object}
*/
const _replaceLocalVideoTrackQueue = createTaskQueue();
/**
*
*/
class ConferenceConnector {
/**
*
*/
constructor(resolve, reject) {
this._resolve = resolve;
this._reject = reject;
this.reconnectTimeout = null;
room.on(JitsiConferenceEvents.CONFERENCE_JOINED,
this._handleConferenceJoined.bind(this));
room.on(JitsiConferenceEvents.CONFERENCE_FAILED,
this._onConferenceFailed.bind(this));
}
/**
*
*/
_handleConferenceFailed(err) {
this._unsubscribe();
this._reject(err);
}
/**
*
*/
_onConferenceFailed(err, ...params) {
APP.store.dispatch(conferenceFailed(room, err, ...params));
logger.error('CONFERENCE FAILED:', err, ...params);
switch (err) {
case JitsiConferenceErrors.NOT_ALLOWED_ERROR: {
// let's show some auth not allowed page
APP.store.dispatch(redirectToStaticPage('static/authError.html'));
break;
}
// not enough rights to create conference
case JitsiConferenceErrors.AUTHENTICATION_REQUIRED: {
const replaceParticipant = getReplaceParticipant(APP.store.getState());
// Schedule reconnect to check if someone else created the room.
this.reconnectTimeout = setTimeout(() => {
APP.store.dispatch(conferenceWillJoin(room));
room.join(null, replaceParticipant);
}, 5000);
const { password }
= APP.store.getState()['features/base/conference'];
AuthHandler.requireAuth(room, password);
break;
}
case JitsiConferenceErrors.RESERVATION_ERROR: {
const [ code, msg ] = params;
APP.UI.notifyReservationError(code, msg);
break;
}
case JitsiConferenceErrors.GRACEFUL_SHUTDOWN:
APP.UI.notifyGracefulShutdown();
break;
// FIXME FOCUS_DISCONNECTED is a confusing event name.
// What really happens there is that the library is not ready yet,
// because Jicofo is not available, but it is going to give it another
// try.
case JitsiConferenceErrors.FOCUS_DISCONNECTED: {
const [ focus, retrySec ] = params;
APP.store.dispatch(showNotification({
descriptionKey: focus,
titleKey: retrySec
}, NOTIFICATION_TIMEOUT_TYPE.SHORT));
break;
}
case JitsiConferenceErrors.FOCUS_LEFT:
case JitsiConferenceErrors.ICE_FAILED:
case JitsiConferenceErrors.VIDEOBRIDGE_NOT_AVAILABLE:
case JitsiConferenceErrors.OFFER_ANSWER_FAILED:
APP.store.dispatch(conferenceWillLeave(room));
// FIXME the conference should be stopped by the library and not by
// the app. Both the errors above are unrecoverable from the library
// perspective.
room.leave().then(() => connection.disconnect());
break;
case JitsiConferenceErrors.CONFERENCE_MAX_USERS:
APP.UI.notifyMaxUsersLimitReached();
break;
case JitsiConferenceErrors.INCOMPATIBLE_SERVER_VERSIONS:
APP.store.dispatch(reloadWithStoredParams());
break;
default:
this._handleConferenceFailed(err, ...params);
}
}
/**
*
*/
_unsubscribe() {
room.off(
JitsiConferenceEvents.CONFERENCE_JOINED,
this._handleConferenceJoined);
room.off(
JitsiConferenceEvents.CONFERENCE_FAILED,
this._onConferenceFailed);
if (this.reconnectTimeout !== null) {
clearTimeout(this.reconnectTimeout);
}
}
/**
*
*/
_handleConferenceJoined() {
this._unsubscribe();
this._resolve();
}
/**
*
*/
connect() {
const replaceParticipant = getReplaceParticipant(APP.store.getState());
// the local storage overrides here and in connection.js can be used by jibri
room.join(jitsiLocalStorage.getItem('xmpp_conference_password_override'), replaceParticipant);
}
}
/**
* Disconnects the connection.
* @returns resolved Promise. We need this in order to make the Promise.all
* call in hangup() to resolve when all operations are finished.
*/
function disconnect() {
const onDisconnected = () => {
APP.API.notifyConferenceLeft(APP.conference.roomName);
return Promise.resolve();
};
if (!connection) {
return onDisconnected();
}
return connection.disconnect().then(onDisconnected, onDisconnected);
}
/**
* Handles CONNECTION_FAILED events from lib-jitsi-meet.
*
* @param {JitsiConnectionError} error - The reported error.
* @returns {void}
* @private
*/
function _connectionFailedHandler(error) {
if (isFatalJitsiConnectionError(error)) {
APP.connection.removeEventListener(
JitsiConnectionEvents.CONNECTION_FAILED,
_connectionFailedHandler);
if (room) {
APP.store.dispatch(conferenceWillLeave(room));
room.leave();
}
}
}
export default {
/**
* Flag used to delay modification of the muted status of local media tracks
* until those are created (or not, but at that point it's certain that
* the tracks won't exist).
*/
_localTracksInitialized: false,
isSharingScreen: false,
/**
* The local presenter video track (if any).
* @type {JitsiLocalTrack|null}
*/
localPresenterVideo: null,
/**
* Returns an object containing a promise which resolves with the created tracks &
* the errors resulting from that process.
*
* @returns {Promise<JitsiLocalTrack[]>, Object}
*/
createInitialLocalTracks(options = {}) {
const errors = {};
// Always get a handle on the audio input device so that we have statistics (such as "No audio input" or
// "Are you trying to speak?" ) even if the user joins the conference muted.
const initialDevices = config.disableInitialGUM ? [] : [ MEDIA_TYPE.AUDIO ];
const requestedAudio = !config.disableInitialGUM;
let requestedVideo = false;
if (!config.disableInitialGUM
&& !options.startWithVideoMuted
&& !options.startAudioOnly
&& !options.startScreenSharing) {
initialDevices.push(MEDIA_TYPE.VIDEO);
requestedVideo = true;
}
if (!config.disableInitialGUM) {
JitsiMeetJS.mediaDevices.addEventListener(
JitsiMediaDevicesEvents.PERMISSION_PROMPT_IS_SHOWN,
browserName =>
APP.store.dispatch(
mediaPermissionPromptVisibilityChanged(true, browserName))
);
}
JitsiMeetJS.mediaDevices.addEventListener(
JitsiMediaDevicesEvents.SLOW_GET_USER_MEDIA,
() => APP.store.dispatch(toggleSlowGUMOverlay(true))
);
let tryCreateLocalTracks;
// On Electron there is no permission prompt for granting permissions. That's why we don't need to
// spend much time displaying the overlay screen. If GUM is not resolved within 15 seconds it will
// probably never resolve.
const timeout = browser.isElectron() ? 15000 : 60000;
const audioOptions = {
devices: [ MEDIA_TYPE.AUDIO ],
timeout,
firePermissionPromptIsShownEvent: true,
fireSlowPromiseEvent: true
};
// FIXME is there any simpler way to rewrite this spaghetti below ?
if (options.startScreenSharing) {
// This option has been deprecated since it is no longer supported as per the w3c spec.
// https://w3c.github.io/mediacapture-screen-share/#dom-mediadevices-getdisplaymedia. If the user has not
// interacted with the webpage before the getDisplayMedia call, the promise will be rejected by the
// browser. This has already been implemented in Firefox and Safari and will be implemented in Chrome soon.
// https://bugs.chromium.org/p/chromium/issues/detail?id=1198918
// Please note that Spot uses the same config option to use an external video input device label as
// screenshare and calls getUserMedia instead of getDisplayMedia for capturing the media. Therefore it
// needs to be supported here if _desktopSharingSourceDevice is provided.
const errMessage = new Error('startScreenSharing config option is no longer supported for web browsers');
const desktopPromise = config._desktopSharingSourceDevice
? this._createDesktopTrack()
: Promise.reject(errMessage);
tryCreateLocalTracks = desktopPromise
.then(([ desktopStream ]) => {
if (!requestedAudio) {
return [ desktopStream ];
}
return createLocalTracksF(audioOptions)
.then(([ audioStream ]) =>
[ desktopStream, audioStream ])
.catch(error => {
errors.audioOnlyError = error;
return [ desktopStream ];
});
})
.catch(error => {
logger.error('Failed to obtain desktop stream', error);
errors.screenSharingError = error;
return requestedAudio ? createLocalTracksF(audioOptions) : [];
})
.catch(error => {
errors.audioOnlyError = error;
return [];
});
} else if (!requestedAudio && !requestedVideo) {
// Resolve with no tracks
tryCreateLocalTracks = Promise.resolve([]);
} else {
tryCreateLocalTracks = createLocalTracksF({
devices: initialDevices,
timeout,
firePermissionPromptIsShownEvent: true,
fireSlowPromiseEvent: true
})
.catch(err => {
if (requestedAudio && requestedVideo) {
// Try audio only...
errors.audioAndVideoError = err;
if (err.name === JitsiTrackErrors.TIMEOUT && !browser.isElectron()) {
// In this case we expect that the permission prompt is still visible. There is no point of
// executing GUM with different source. Also at the time of writing the following
// inconsistency have been noticed in some browsers - if the permissions prompt is visible
// and another GUM is executed the prompt does not change its content but if the user
// clicks allow the user action isassociated with the latest GUM call.
errors.audioOnlyError = err;
errors.videoOnlyError = err;
return [];
}
return createLocalTracksF(audioOptions);
} else if (requestedAudio && !requestedVideo) {
errors.audioOnlyError = err;
return [];
} else if (requestedVideo && !requestedAudio) {
errors.videoOnlyError = err;
return [];
}
logger.error('Should never happen');
})
.catch(err => {
// Log this just in case...
if (!requestedAudio) {
logger.error('The impossible just happened', err);
}
errors.audioOnlyError = err;
// Try video only...
return requestedVideo
? createLocalTracksF({
devices: [ MEDIA_TYPE.VIDEO ],
firePermissionPromptIsShownEvent: true,
fireSlowPromiseEvent: true
})
: [];
})
.catch(err => {
// Log this just in case...
if (!requestedVideo) {
logger.error('The impossible just happened', err);
}
errors.videoOnlyError = err;
return [];
});
}
// Hide the permissions prompt/overlay as soon as the tracks are
// created. Don't wait for the connection to be made, since in some
// cases, when auth is required, for instance, that won't happen until
// the user inputs their credentials, but the dialog would be
// overshadowed by the overlay.
tryCreateLocalTracks.then(tracks => {
APP.store.dispatch(toggleSlowGUMOverlay(false));
APP.store.dispatch(mediaPermissionPromptVisibilityChanged(false));
return tracks;
});
return {
tryCreateLocalTracks,
errors
};
},
/**
* Displays error notifications according to the state carried by {@code errors} object returned
* by {@link createInitialLocalTracks}.
* @param {Object} errors - the errors (if any) returned by {@link createInitialLocalTracks}.
*
* @returns {void}
* @private
*/
_displayErrorsForCreateInitialLocalTracks(errors) {
const {
audioAndVideoError,
audioOnlyError,
screenSharingError,
videoOnlyError
} = errors;
// FIXME If there will be microphone error it will cover any screensharing dialog, but it's still better than in
// the reverse order where the screensharing dialog will sometimes be closing the microphone alert
// ($.prompt.close(); is called). Need to figure out dialogs chaining to fix that.
if (screenSharingError) {
this._handleScreenSharingError(screenSharingError);
}
if (audioAndVideoError || audioOnlyError) {
if (audioOnlyError || videoOnlyError) {
// If both requests for 'audio' + 'video' and 'audio' only failed, we assume that there are some
// problems with user's microphone and show corresponding dialog.
APP.store.dispatch(notifyMicError(audioOnlyError));
APP.store.dispatch(notifyCameraError(videoOnlyError));
} else {
// If request for 'audio' + 'video' failed, but request for 'audio' only was OK, we assume that we had
// problems with camera and show corresponding dialog.
APP.store.dispatch(notifyCameraError(audioAndVideoError));
}
}
},
/**
* Creates local media tracks and connects to a room. Will show error
* dialogs in case accessing the local microphone and/or camera failed. Will
* show guidance overlay for users on how to give access to camera and/or
* microphone.
* @param {string} roomName
* @param {object} options
* @param {boolean} options.startAudioOnly=false - if <tt>true</tt> then
* only audio track will be created and the audio only mode will be turned
* on.
* @param {boolean} options.startScreenSharing=false - if <tt>true</tt>
* should start with screensharing instead of camera video.
* @param {boolean} options.startWithAudioMuted - will start the conference
* without any audio tracks.
* @param {boolean} options.startWithVideoMuted - will start the conference
* without any video tracks.
* @returns {Promise.<JitsiLocalTrack[], JitsiConnection>}
*/
createInitialLocalTracksAndConnect(roomName, options = {}) {
const { tryCreateLocalTracks, errors } = this.createInitialLocalTracks(options);
return Promise.all([ tryCreateLocalTracks, connect(roomName) ])
.then(([ tracks, con ]) => {
this._displayErrorsForCreateInitialLocalTracks(errors);
return [ tracks, con ];
});
},
startConference(con, tracks) {
tracks.forEach(track => {
if ((track.isAudioTrack() && this.isLocalAudioMuted())
|| (track.isVideoTrack() && this.isLocalVideoMuted())) {
const mediaType = track.getType();
sendAnalytics(
createTrackMutedEvent(mediaType, 'initial mute'));
logger.log(`${mediaType} mute: initially muted.`);
track.mute();
}
});
con.addEventListener(JitsiConnectionEvents.CONNECTION_FAILED, _connectionFailedHandler);
APP.connection = connection = con;
this._createRoom(tracks);
// if user didn't give access to mic or camera or doesn't have
// them at all, we mark corresponding toolbar buttons as muted,
// so that the user can try unmute later on and add audio/video
// to the conference
if (!tracks.find(t => t.isAudioTrack())) {
this.setAudioMuteStatus(true);
}
if (!tracks.find(t => t.isVideoTrack())) {
this.setVideoMuteStatus();
}
if (config.iAmRecorder) {
this.recorder = new Recorder();
}
if (config.startSilent) {
sendAnalytics(createStartSilentEvent());
APP.store.dispatch(showNotification({
descriptionKey: 'notify.startSilentDescription',
titleKey: 'notify.startSilentTitle'
}, NOTIFICATION_TIMEOUT_TYPE.LONG));
}
// XXX The API will take care of disconnecting from the XMPP
// server (and, thus, leaving the room) on unload.
return new Promise((resolve, reject) => {
new ConferenceConnector(resolve, reject).connect();
});
},
/**
* Open new connection and join the conference when prejoin page is not enabled.
* If prejoin page is enabled open an new connection in the background
* and create local tracks.
*
* @param {{ roomName: string }} options
* @returns {Promise}
*/
async init({ roomName }) {
const initialOptions = {
startAudioOnly: config.startAudioOnly,
startScreenSharing: config.startScreenSharing,
startWithAudioMuted: getStartWithAudioMuted(APP.store.getState())
|| config.startSilent
|| isUserInteractionRequiredForUnmute(APP.store.getState()),
startWithVideoMuted: getStartWithVideoMuted(APP.store.getState())
|| isUserInteractionRequiredForUnmute(APP.store.getState())
};
this.roomName = roomName;
try {
// Initialize the device list first. This way, when creating tracks
// based on preferred devices, loose label matching can be done in
// cases where the exact ID match is no longer available, such as
// when the camera device has switched USB ports.
// when in startSilent mode we want to start with audio muted
await this._initDeviceList();
} catch (error) {
logger.warn('initial device list initialization failed', error);
}
const handleStartAudioMuted = (options, tracks) => {
if (options.startWithAudioMuted) {
// Always add the track on Safari because of a known issue where audio playout doesn't happen
// if the user joins audio and video muted, i.e., if there is no local media capture.
if (browser.isWebKitBased()) {
this.muteAudio(true, true);
} else {
return tracks.filter(track => track.getType() !== MEDIA_TYPE.AUDIO);
}
}
return tracks;
};
if (isPrejoinPageVisible(APP.store.getState())) {
_connectionPromise = connect(roomName).then(c => {
// we want to initialize it early, in case of errors to be able
// to gather logs
APP.connection = c;
return c;
});
if (_onConnectionPromiseCreated) {
_onConnectionPromiseCreated();
}
APP.store.dispatch(makePrecallTest(this._getConferenceOptions()));
const { tryCreateLocalTracks, errors } = this.createInitialLocalTracks(initialOptions);
const tracks = await tryCreateLocalTracks;
// Initialize device list a second time to ensure device labels
// get populated in case of an initial gUM acceptance; otherwise
// they may remain as empty strings.
this._initDeviceList(true);
if (isPrejoinPageVisible(APP.store.getState())) {
return APP.store.dispatch(initPrejoin(tracks, errors));
}
logger.debug('Prejoin screen no longer displayed at the time when tracks were created');
this._displayErrorsForCreateInitialLocalTracks(errors);
let localTracks = handleStartAudioMuted(initialOptions, tracks);
// in case where gum is slow and resolves after the startAudio/VideoMuted coming from jicofo, we can be
// join unmuted even though jicofo had instruct us to mute, so let's respect that before passing the tracks
if (!browser.isWebKitBased()) {
if (room?.isStartAudioMuted()) {
localTracks = localTracks.filter(track => track.getType() !== MEDIA_TYPE.AUDIO);
}
}
if (room?.isStartVideoMuted()) {
localTracks = localTracks.filter(track => track.getType() !== MEDIA_TYPE.VIDEO);
}
return this._setLocalAudioVideoStreams(localTracks);
}
const [ tracks, con ] = await this.createInitialLocalTracksAndConnect(roomName, initialOptions);
this._initDeviceList(true);
return this.startConference(con, handleStartAudioMuted(initialOptions, tracks));
},
/**
* Joins conference after the tracks have been configured in the prejoin screen.
*
* @param {Object[]} tracks - An array with the configured tracks
* @returns {void}
*/
async prejoinStart(tracks) {
if (!_connectionPromise) {
// The conference object isn't initialized yet. Wait for the promise to initialise.
await new Promise(resolve => {
_onConnectionPromiseCreated = resolve;
});
_onConnectionPromiseCreated = undefined;
}
let con;
try {
con = await _connectionPromise;
this.startConference(con, tracks);
} catch (error) {
logger.error(`An error occurred while trying to join a meeting from the prejoin screen: ${error}`);
APP.store.dispatch(setJoiningInProgress(false));
}
},
/**
* Check if id is id of the local user.
* @param {string} id id to check
* @returns {boolean}
*/
isLocalId(id) {
return this.getMyUserId() === id;
},
/**
* Tells whether the local video is muted or not.
* @return {boolean}
*/
isLocalVideoMuted() {
// If the tracks are not ready, read from base/media state
return this._localTracksInitialized
? isLocalCameraTrackMuted(
APP.store.getState()['features/base/tracks'])
: isVideoMutedByUser(APP.store);
},
/**
* Simulates toolbar button click for audio mute. Used by shortcuts and API.
* @param {boolean} mute true for mute and false for unmute.
* @param {boolean} [showUI] when set to false will not display any error
* dialogs in case of media permissions error.
*/
muteAudio(mute, showUI = true) {
const state = APP.store.getState();
if (!mute
&& isUserInteractionRequiredForUnmute(state)) {
logger.error('Unmuting audio requires user interaction');
return;
}
// check for A/V Moderation when trying to unmute
if (!mute && shouldShowModeratedNotification(MEDIA_TYPE.AUDIO, state)) {
if (!isModerationNotificationDisplayed(MEDIA_TYPE.AUDIO, state)) {
APP.store.dispatch(showModeratedNotification(MEDIA_TYPE.AUDIO));
}
return;
}
// Not ready to modify track's state yet
if (!this._localTracksInitialized) {
// This will only modify base/media.audio.muted which is then synced
// up with the track at the end of local tracks initialization.
muteLocalAudio(mute);
this.setAudioMuteStatus(mute);
return;
} else if (this.isLocalAudioMuted() === mute) {
// NO-OP
return;
}
const localAudio = getLocalJitsiAudioTrack(APP.store.getState());
if (!localAudio && !mute) {
const maybeShowErrorDialog = error => {
showUI && APP.store.dispatch(notifyMicError(error));
};
createLocalTracksF({ devices: [ 'audio' ] })
.then(([ audioTrack ]) => audioTrack)
.catch(error => {
maybeShowErrorDialog(error);
// Rollback the audio muted status by using null track
return null;
})
.then(audioTrack => this.useAudioStream(audioTrack));
} else {
muteLocalAudio(mute);
}
},
/**
* Returns whether local audio is muted or not.
* @returns {boolean}
*/
isLocalAudioMuted() {
// If the tracks are not ready, read from base/media state
return this._localTracksInitialized
? isLocalTrackMuted(
APP.store.getState()['features/base/tracks'],
MEDIA_TYPE.AUDIO)
: Boolean(
APP.store.getState()['features/base/media'].audio.muted);
},
/**
* Simulates toolbar button click for audio mute. Used by shortcuts
* and API.
* @param {boolean} [showUI] when set to false will not display any error
* dialogs in case of media permissions error.
*/
toggleAudioMuted(showUI = true) {
this.muteAudio(!this.isLocalAudioMuted(), showUI);
},
/**
* Simulates toolbar button click for presenter video mute. Used by
* shortcuts and API.
* @param mute true for mute and false for unmute.
* @param {boolean} [showUI] when set to false will not display any error
* dialogs in case of media permissions error.
*/
async mutePresenter(mute, showUI = true) {
const maybeShowErrorDialog = error => {
showUI && APP.store.dispatch(notifyCameraError(error));
};
const localVideo = getLocalJitsiVideoTrack(APP.store.getState());
if (mute) {
try {
await localVideo.setEffect(undefined);
} catch (err) {
logger.error('Failed to remove the presenter effect', err);
maybeShowErrorDialog(err);
}
} else {
try {
await localVideo.setEffect(await this._createPresenterStreamEffect());
} catch (err) {
logger.error('Failed to apply the presenter effect', err);
maybeShowErrorDialog(err);
}
}
},
/**
* Simulates toolbar button click for video mute. Used by shortcuts and API.
* @param mute true for mute and false for unmute.
* @param {boolean} [showUI] when set to false will not display any error
* dialogs in case of media permissions error.
*/
muteVideo(mute, showUI = true) {
if (this.videoSwitchInProgress) {
// Turning the camera on while the screen sharing mode is being turned off is causing issues around
// the presenter mode handling. It should be okay for the user to click the button again once that's done.
console.warn('muteVideo - unable to perform operations while video switch is in progress');
return;
}
if (!mute
&& isUserInteractionRequiredForUnmute(APP.store.getState())) {
logger.error('Unmuting video requires user interaction');
return;
}
if (this.isSharingScreen) {
// Chain _mutePresenterVideo calls
_prevMutePresenterVideo = _prevMutePresenterVideo.then(() => this._mutePresenterVideo(mute));
return;
}
// If not ready to modify track's state yet adjust the base/media
if (!this._localTracksInitialized) {
// This will only modify base/media.video.muted which is then synced
// up with the track at the end of local tracks initialization.
muteLocalVideo(mute);
this.setVideoMuteStatus();
return;
} else if (this.isLocalVideoMuted() === mute) {
// NO-OP
return;
}
const localVideo = getLocalJitsiVideoTrack(APP.store.getState());
if (!localVideo && !mute) {
const maybeShowErrorDialog = error => {
showUI && APP.store.dispatch(notifyCameraError(error));
};
// Try to create local video if there wasn't any.
// This handles the case when user joined with no video
// (dismissed screen sharing screen or in audio only mode), but
// decided to add it later on by clicking on muted video icon or
// turning off the audio only mode.
//
// FIXME when local track creation is moved to react/redux
// it should take care of the use case described above
createLocalTracksF({ devices: [ 'video' ] })
.then(([ videoTrack ]) => videoTrack)
.catch(error => {
// FIXME should send some feedback to the API on error ?
maybeShowErrorDialog(error);
// Rollback the video muted status by using null track
return null;
})
.then(videoTrack => {
logger.debug(`muteVideo: calling useVideoStream for track: ${videoTrack}`);
return this.useVideoStream(videoTrack);
});
} else {
// FIXME show error dialog if it fails (should be handled by react)
muteLocalVideo(mute);
}
},
/**
* Simulates toolbar button click for video mute. Used by shortcuts and API.
* @param {boolean} [showUI] when set to false will not display any error
* dialogs in case of media permissions error.
*/
toggleVideoMuted(showUI = true) {
this.muteVideo(!this.isLocalVideoMuted(), showUI);
},
/**
* Retrieve list of ids of conference participants (without local user).
* @returns {string[]}
*/
listMembersIds() {
return room.getParticipants().map(p => p.getId());
},
/**
* Checks whether the participant identified by id is a moderator.
* @id id to search for participant
* @return {boolean} whether the participant is moderator
*/
isParticipantModerator(id) {
const user = room.getParticipantById(id);
return user && user.isModerator();
},
/**
* Retrieve list of conference participants (without local user).
* @returns {JitsiParticipant[]}
*
* NOTE: Used by jitsi-meet-torture!
*/
listMembers() {
return room.getParticipants();
},
/**
* Used by Jibri to detect when it's alone and the meeting should be terminated.
*/
get membersCount() {
return room.getParticipants()
.filter(p => !p.isHidden() || !(config.iAmRecorder && p.isHiddenFromRecorder())).length + 1;
},
/**
* Returns true if the callstats integration is enabled, otherwise returns
* false.
*
* @returns true if the callstats integration is enabled, otherwise returns
* false.
*/
isCallstatsEnabled() {
return room && room.isCallstatsEnabled();
},
/**
* Get speaker stats that track total dominant speaker time.
*
* @returns {object} A hash with keys being user ids and values being the
* library's SpeakerStats model used for calculating time as dominant
* speaker.
*/
getSpeakerStats() {
return room.getSpeakerStats();
},
/**
* Returns the connection times stored in the library.
*/
getConnectionTimes() {
return room.getConnectionTimes();
},
// used by torture currently
isJoined() {
return room && room.isJoined();
},
getConnectionState() {
return room && room.getConnectionState();
},
/**
* Obtains current P2P ICE connection state.
* @return {string|null} ICE connection state or <tt>null</tt> if there's no
* P2P connection
*/
getP2PConnectionState() {
return room && room.getP2PConnectionState();
},
/**
* Starts P2P (for tests only)
* @private
*/
_startP2P() {
try {
room && room.startP2PSession();
} catch (error) {
logger.error('Start P2P failed', error);
throw error;
}
},
/**
* Stops P2P (for tests only)
* @private
*/
_stopP2P() {
try {
room && room.stopP2PSession();
} catch (error) {
logger.error('Stop P2P failed', error);
throw error;
}
},
/**
* Checks whether or not our connection is currently in interrupted and
* reconnect attempts are in progress.
*
* @returns {boolean} true if the connection is in interrupted state or
* false otherwise.
*/
isConnectionInterrupted() {
return room.isConnectionInterrupted();
},
/**
* Finds JitsiParticipant for given id.
*
* @param {string} id participant's identifier(MUC nickname).
*
* @returns {JitsiParticipant|null} participant instance for given id or
* null if not found.
*/
getParticipantById(id) {
return room ? room.getParticipantById(id) : null;
},
getMyUserId() {
return room && room.myUserId();
},
/**
* Will be filled with values only when config.debug is enabled.
* Its used by torture to check audio levels.
*/
audioLevelsMap: {},
/**
* Returns the stored audio level (stored only if config.debug is enabled)
* @param id the id for the user audio level to return (the id value is
* returned for the participant using getMyUserId() method)
*/
getPeerSSRCAudioLevel(id) {
return this.audioLevelsMap[id];
},
/**
* @return {number} the number of participants in the conference with at
* least one track.
*/
getNumberOfParticipantsWithTracks() {
return room.getParticipants()
.filter(p => p.getTracks().length > 0)
.length;
},
/**
* Returns the stats.
*/
getStats() {
return room.connectionQuality.getStats();
},
// end used by torture
/**
* Download logs, a function that can be called from console while
* debugging.
* @param filename (optional) specify target filename
*/
saveLogs(filename = 'meetlog.json') {
// this can be called from console and will not have reference to this
// that's why we reference the global var
const logs = APP.connection.getLogs();
downloadJSON(logs, filename);
},
/**
* Exposes a Command(s) API on this instance. It is necessitated by (1) the
* desire to keep room private to this instance and (2) the need of other
* modules to send and receive commands to and from participants.
* Eventually, this instance remains in control with respect to the
* decision whether the Command(s) API of room (i.e. lib-jitsi-meet's
* JitsiConference) is to be used in the implementation of the Command(s)
* API of this instance.
*/
commands: {
/**
* Known custom conference commands.
*/
defaults: commands,
/**
* Receives notifications from other participants about commands aka
* custom events (sent by sendCommand or sendCommandOnce methods).
* @param command {String} the name of the command
* @param handler {Function} handler for the command
*/
addCommandListener() {
// eslint-disable-next-line prefer-rest-params
room.addCommandListener(...arguments);
},
/**
* Removes command.
* @param name {String} the name of the command.
*/
removeCommand() {
// eslint-disable-next-line prefer-rest-params
room.removeCommand(...arguments);
},
/**
* Sends command.
* @param name {String} the name of the command.
* @param values {Object} with keys and values that will be sent.
*/
sendCommand() {
// eslint-disable-next-line prefer-rest-params
room.sendCommand(...arguments);
},
/**
* Sends command one time.
* @param name {String} the name of the command.
* @param values {Object} with keys and values that will be sent.
*/
sendCommandOnce() {
// eslint-disable-next-line prefer-rest-params
room.sendCommandOnce(...arguments);
}
},
/**
* Used by the Breakout Rooms feature to join a breakout room or go back to the main room.
*/
async joinRoom(roomName, options) {
// Reset VideoLayout. It's destroyed in features/video-layout/middleware.web.js so re-initialize it.
VideoLayout.initLargeVideo();
VideoLayout.resizeVideoArea();
// Restore initial state.
this._localTracksInitialized = false;
this.isSharingScreen = false;
this.localPresenterVideo = null;
this.roomName = roomName;
const { tryCreateLocalTracks, errors } = this.createInitialLocalTracks(options);
const localTracks = await tryCreateLocalTracks;
this._displayErrorsForCreateInitialLocalTracks(errors);
localTracks.forEach(track => {
if ((track.isAudioTrack() && this.isLocalAudioMuted())
|| (track.isVideoTrack() && this.isLocalVideoMuted())) {
track.mute();
}
});
this._createRoom(localTracks);
return new Promise((resolve, reject) => {
new ConferenceConnector(resolve, reject).connect();
});
},
_createRoom(localTracks) {
room = connection.initJitsiConference(APP.conference.roomName, this._getConferenceOptions());
// Filter out the tracks that are muted (except on Safari).
const tracks = browser.isWebKitBased() ? localTracks : localTracks.filter(track => !track.isMuted());
this._setLocalAudioVideoStreams(tracks);
this._room = room; // FIXME do not use this
APP.store.dispatch(_conferenceWillJoin(room));
sendLocalParticipant(APP.store, room);
this._setupListeners();
},
/**
* Sets local video and audio streams.
* @param {JitsiLocalTrack[]} tracks=[]
* @returns {Promise[]}
* @private
*/
_setLocalAudioVideoStreams(tracks = []) {
const promises = tracks.map(track => {
if (track.isAudioTrack()) {
return this.useAudioStream(track);
} else if (track.isVideoTrack()) {
logger.debug(`_setLocalAudioVideoStreams is calling useVideoStream with track: ${track}`);
return this.useVideoStream(track);
}
logger.error('Ignored not an audio nor a video track: ', track);
return Promise.resolve();
});
return Promise.allSettled(promises).then(() => {
this._localTracksInitialized = true;
logger.log(`Initialized with ${tracks.length} local tracks`);
});
},
_getConferenceOptions() {
const options = getConferenceOptions(APP.store.getState());
options.createVADProcessor = createRnnoiseProcessor;
return options;
},
/**
* Start using provided video stream.
* Stops previous video stream.
* @param {JitsiLocalTrack} newTrack - new track to use or null
* @returns {Promise}
*/
useVideoStream(newTrack) {
const state = APP.store.getState();
logger.debug(`useVideoStream: ${newTrack}`);
return new Promise((resolve, reject) => {
_replaceLocalVideoTrackQueue.enqueue(onFinish => {
const oldTrack = getLocalJitsiVideoTrack(state);
logger.debug(`useVideoStream: Replacing ${oldTrack} with ${newTrack}`);
if (oldTrack === newTrack) {
resolve();
onFinish();
return;
}
// In the multi-stream mode, add the track to the conference if there is no existing track, replace it
// otherwise.
if (getMultipleVideoSendingSupportFeatureFlag(state)) {
const trackAction = oldTrack
? replaceLocalTrack(oldTrack, newTrack, room)
: addLocalTrack(newTrack);
APP.store.dispatch(trackAction)
.then(() => {
this.setVideoMuteStatus();
})
.then(resolve)
.catch(error => {
logger.error(`useVideoStream failed: ${error}`);
reject(error);
})
.then(onFinish);
return;
}
APP.store.dispatch(
replaceLocalTrack(oldTrack, newTrack, room))
.then(() => {
this._setSharingScreen(newTrack);
this.setVideoMuteStatus();
})
.then(resolve)
.catch(error => {
logger.error(`useVideoStream failed: ${error}`);
reject(error);
})
.then(onFinish);
});
});
},
/**
* Sets `this.isSharingScreen` depending on provided video stream.
* In case new screen sharing status is not equal previous one
* it updates desktop sharing buttons in UI
* and notifies external application.
*
* @param {JitsiLocalTrack} [newStream] new stream to use or null
* @private
* @returns {void}
*/
_setSharingScreen(newStream) {
const wasSharingScreen = this.isSharingScreen;
this.isSharingScreen = newStream && newStream.videoType === 'desktop';
if (wasSharingScreen !== this.isSharingScreen) {
const details = {};
if (this.isSharingScreen) {
details.sourceType = newStream.sourceType;
}
APP.API.notifyScreenSharingStatusChanged(
this.isSharingScreen, details);
}
},
/**
* Start using provided audio stream.
* Stops previous audio stream.
* @param {JitsiLocalTrack} newTrack - new track to use or null
* @returns {Promise}
*/
useAudioStream(newTrack) {
return new Promise((resolve, reject) => {
_replaceLocalAudioTrackQueue.enqueue(onFinish => {
const oldTrack = getLocalJitsiAudioTrack(APP.store.getState());
if (oldTrack === newTrack) {
resolve();
onFinish();
return;
}
APP.store.dispatch(
replaceLocalTrack(oldTrack, newTrack, room))
.then(() => {
this.setAudioMuteStatus(this.isLocalAudioMuted());
})
.then(resolve)
.catch(reject)
.then(onFinish);
});
});
},
/**
* Returns whether or not the conference is currently in audio only mode.
*
* @returns {boolean}
*/
isAudioOnly() {
return Boolean(APP.store.getState()['features/base/audio-only'].enabled);
},
videoSwitchInProgress: false,
/**
* This fields stores a handler which will create a Promise which turns off
* the screen sharing and restores the previous video state (was there
* any video, before switching to screen sharing ? was it muted ?).
*
* Once called this fields is cleared to <tt>null</tt>.
* @type {Function|null}
*/
_untoggleScreenSharing: null,
/**
* Creates a Promise which turns off the screen sharing and restores
* the previous state described by the arguments.
*
* This method is bound to the appropriate values, after switching to screen
* sharing and stored in {@link _untoggleScreenSharing}.
*
* @param {boolean} didHaveVideo indicates if there was a camera video being
* used, before switching to screen sharing.
* @param {boolean} ignoreDidHaveVideo indicates if the camera video should be
* ignored when switching screen sharing off.
* @return {Promise} resolved after the screen sharing is turned off, or
* rejected with some error (no idea what kind of error, possible GUM error)
* in case it fails.
* @private
*/
async _turnScreenSharingOff(didHaveVideo, ignoreDidHaveVideo) {
this._untoggleScreenSharing = null;
this.videoSwitchInProgress = true;
APP.store.dispatch(stopReceiver());
this._stopProxyConnection();
APP.store.dispatch(toggleScreenshotCaptureSummary(false));
const tracks = APP.store.getState()['features/base/tracks'];
const duration = getLocalVideoTrack(tracks)?.jitsiTrack.getDuration() ?? 0;
// It can happen that presenter GUM is in progress while screensharing is being turned off. Here it needs to
// wait for that GUM to be resolved in order to prevent leaking the presenter track(this.localPresenterVideo
// will be null when SS is being turned off, but it will initialize once GUM resolves).
let promise = _prevMutePresenterVideo = _prevMutePresenterVideo.then(() => {
// mute the presenter track if it exists.
if (this.localPresenterVideo) {
APP.store.dispatch(setVideoMuted(true, MEDIA_TYPE.PRESENTER));
return this.localPresenterVideo.dispose().then(() => {
APP.store.dispatch(trackRemoved(this.localPresenterVideo));
this.localPresenterVideo = null;
});
}
});
// If system audio was also shared stop the AudioMixerEffect and dispose of the desktop audio track.
if (this._mixerEffect) {
const localAudio = getLocalJitsiAudioTrack(APP.store.getState());
await localAudio.setEffect(undefined);
await this._desktopAudioStream.dispose();
this._mixerEffect = undefined;
this._desktopAudioStream = undefined;
// In case there was no local audio when screen sharing was started the fact that we set the audio stream to
// null will take care of the desktop audio stream cleanup.
} else if (this._desktopAudioStream) {
await room.replaceTrack(this._desktopAudioStream, null);
this._desktopAudioStream.dispose();
this._desktopAudioStream = undefined;
}
APP.store.dispatch(setScreenAudioShareState(false));
if (didHaveVideo && !ignoreDidHaveVideo) {
promise = promise.then(() => createLocalTracksF({ devices: [ 'video' ] }))
.then(([ stream ]) => {
logger.debug(`_turnScreenSharingOff using ${stream} for useVideoStream`);
return this.useVideoStream(stream);
})
.catch(error => {
logger.error('failed to switch back to local video', error);
return this.useVideoStream(null).then(() =>
// Still fail with the original err
Promise.reject(error)
);
});
} else {
promise = promise.then(() => {
logger.debug('_turnScreenSharingOff using null for useVideoStream');
return this.useVideoStream(null);
});
}
return promise.then(
() => {
this.videoSwitchInProgress = false;
sendAnalytics(createScreenSharingEvent('stopped',
duration === 0 ? null : duration));
logger.info('Screen sharing stopped.');
},
error => {
this.videoSwitchInProgress = false;
logger.error(`_turnScreenSharingOff failed: ${error}`);
throw error;
});
},
/**
* Toggles between screen sharing and camera video if the toggle parameter
* is not specified and starts the procedure for obtaining new screen
* sharing/video track otherwise.
*
* @param {boolean} [toggle] - If true - new screen sharing track will be
* obtained. If false - new video track will be obtain. If not specified -
* toggles between screen sharing and camera video.
* @param {Object} [options] - Screen sharing options that will be passed to
* createLocalTracks.
* @param {boolean} [options.audioOnly] - Whether or not audioOnly is enabled.
* @param {Array<string>} [options.desktopSharingSources] - Array with the
* sources that have to be displayed in the desktop picker window ('screen',
* 'window', etc.).
* @param {Object} [options.desktopStream] - An existing desktop stream to
* use instead of creating a new desktop stream.
* @param {boolean} ignoreDidHaveVideo - if true ignore if video was on when sharing started.
* @return {Promise.<T>}
*/
async toggleScreenSharing(toggle = !this._untoggleScreenSharing, options = {}, ignoreDidHaveVideo) {
logger.debug(`toggleScreenSharing: ${toggle}`);
if (this.videoSwitchInProgress) {
return Promise.reject(`toggleScreenSharing: ${toggle} aborted - video switch in progress.`);
}
if (!JitsiMeetJS.isDesktopSharingEnabled()) {
return Promise.reject('Cannot toggle screen sharing: not supported.');
}
if (this.isAudioOnly()) {
APP.store.dispatch(setAudioOnly(false));
}
if (toggle) {
try {
await this._switchToScreenSharing(options);
return;
} catch (err) {
logger.error('Failed to switch to screensharing', err);
return;
}
}
return this._untoggleScreenSharing
? this._untoggleScreenSharing(ignoreDidHaveVideo)
: Promise.resolve();
},
/**
* Creates desktop (screensharing) {@link JitsiLocalTrack}
*
* @param {Object} [options] - Screen sharing options that will be passed to
* createLocalTracks.
* @param {Object} [options.desktopSharing]
* @param {Object} [options.desktopStream] - An existing desktop stream to
* use instead of creating a new desktop stream.
* @return {Promise.<JitsiLocalTrack>} - A Promise resolved with
* {@link JitsiLocalTrack} for the screensharing or rejected with
* {@link JitsiTrackError}.
*
* @private
*/
_createDesktopTrack(options = {}) {
const didHaveVideo = !this.isLocalVideoMuted();
const getDesktopStreamPromise = options.desktopStream
? Promise.resolve([ options.desktopStream ])
: createLocalTracksF({
desktopSharingSourceDevice: options.desktopSharingSources
? null : config._desktopSharingSourceDevice,
desktopSharingSources: options.desktopSharingSources,
devices: [ 'desktop' ]
});
return getDesktopStreamPromise.then(desktopStreams => {
// Stores the "untoggle" handler which remembers whether was
// there any video before and whether was it muted.
this._untoggleScreenSharing
= this._turnScreenSharingOff.bind(this, didHaveVideo);
const desktopVideoStream = desktopStreams.find(stream => stream.getType() === MEDIA_TYPE.VIDEO);
const desktopAudioStream = desktopStreams.find(stream => stream.getType() === MEDIA_TYPE.AUDIO);
if (desktopAudioStream) {
desktopAudioStream.on(
JitsiTrackEvents.LOCAL_TRACK_STOPPED,
() => {
logger.debug(`Local screensharing audio track stopped. ${this.isSharingScreen}`);
// Handle case where screen share was stopped from the browsers 'screen share in progress'
// window. If audio screen sharing is stopped via the normal UX flow this point shouldn't
// be reached.
isScreenAudioShared(APP.store.getState())
&& this._untoggleScreenSharing
&& this._untoggleScreenSharing();
}
);
}
if (desktopVideoStream) {
desktopVideoStream.on(
JitsiTrackEvents.LOCAL_TRACK_STOPPED,
() => {
logger.debug(`Local screensharing track stopped. ${this.isSharingScreen}`);
// If the stream was stopped during screen sharing
// session then we should switch back to video.
this.isSharingScreen
&& this._untoggleScreenSharing
&& this._untoggleScreenSharing();
}
);
}
return desktopStreams;
}, error => {
throw error;
});
},
/**
* Creates a new instance of presenter effect. A new video track is created
* using the new set of constraints that are calculated based on
* the height of the desktop that is being currently shared.
*
* @param {number} height - The height of the desktop stream that is being
* currently shared.
* @param {string} cameraDeviceId - The device id of the camera to be used.
* @return {Promise<JitsiStreamPresenterEffect>} - A promise resolved with
* {@link JitsiStreamPresenterEffect} if it succeeds.
*/
async _createPresenterStreamEffect(height = null, cameraDeviceId = null) {
if (!this.localPresenterVideo) {
const camera = cameraDeviceId ?? getUserSelectedCameraDeviceId(APP.store.getState());
try {
this.localPresenterVideo = await createLocalPresenterTrack({ cameraDeviceId: camera }, height);
} catch (err) {
logger.error('Failed to create a camera track for presenter', err);
return;
}
APP.store.dispatch(trackAdded(this.localPresenterVideo));
}
try {
const effect = await createPresenterEffect(this.localPresenterVideo.stream);
return effect;
} catch (err) {
logger.error('Failed to create the presenter effect', err);
}
},
/**
* Tries to turn the presenter video track on or off. If a presenter track
* doesn't exist, a new video track is created.
*
* @param mute - true for mute and false for unmute.
*
* @private
*/
async _mutePresenterVideo(mute) {
const maybeShowErrorDialog = error => {
APP.store.dispatch(notifyCameraError(error));
};
// Check for NO-OP
if (mute && (!this.localPresenterVideo || this.localPresenterVideo.isMuted())) {
return;
} else if (!mute && this.localPresenterVideo && !this.localPresenterVideo.isMuted()) {
return;
}
// Create a new presenter track and apply the presenter effect.
if (!this.localPresenterVideo && !mute) {
const localVideo = getLocalJitsiVideoTrack(APP.store.getState());
const { height, width } = localVideo.track.getSettings() ?? localVideo.track.getConstraints();
const isPortrait = height >= width;
const DESKTOP_STREAM_CAP = 720;
const highResolutionTrack
= (isPortrait && width > DESKTOP_STREAM_CAP) || (!isPortrait && height > DESKTOP_STREAM_CAP);
// Resizing the desktop track for presenter is causing blurriness of the desktop share on chrome.
// Disable resizing by default, enable it only when config.js setting is enabled.
const resizeDesktopStream = highResolutionTrack && config.videoQuality?.resizeDesktopForPresenter;
if (resizeDesktopStream) {
let desktopResizeConstraints = {};
if (height && width) {
const advancedConstraints = [ { aspectRatio: (width / height).toPrecision(4) } ];
const constraint = isPortrait ? { width: DESKTOP_STREAM_CAP } : { height: DESKTOP_STREAM_CAP };
advancedConstraints.push(constraint);
desktopResizeConstraints.advanced = advancedConstraints;
} else {
desktopResizeConstraints = {
width: 1280,
height: 720
};
}
// Apply the constraints on the desktop track.
try {
await localVideo.track.applyConstraints(desktopResizeConstraints);
} catch (err) {
logger.error('Failed to apply constraints on the desktop stream for presenter mode', err);
return;
}
}
const trackHeight = resizeDesktopStream
? localVideo.track.getSettings().height ?? DESKTOP_STREAM_CAP
: height;
let effect;
try {
effect = await this._createPresenterStreamEffect(trackHeight);
} catch (err) {
logger.error('Failed to unmute Presenter Video', err);
maybeShowErrorDialog(err);
return;
}
// Replace the desktop track on the peerconnection.
try {
await localVideo.setEffect(effect);
APP.store.dispatch(setVideoMuted(mute, MEDIA_TYPE.PRESENTER));
this.setVideoMuteStatus();
} catch (err) {
logger.error('Failed to apply the Presenter effect', err);
}
} else {
APP.store.dispatch(setVideoMuted(mute, MEDIA_TYPE.PRESENTER));
}
},
/**
* Tries to switch to the screensharing mode by disposing camera stream and
* replacing it with a desktop one.
*
* @param {Object} [options] - Screen sharing options that will be passed to
* createLocalTracks.
*
* @return {Promise} - A Promise resolved if the operation succeeds or
* rejected with some unknown type of error in case it fails. Promise will
* be rejected immediately if {@link videoSwitchInProgress} is true.
*
* @private
*/
_switchToScreenSharing(options = {}) {
if (this.videoSwitchInProgress) {
return Promise.reject('Switch in progress.');
}
this.videoSwitchInProgress = true;
return this._createDesktopTrack(options)
.then(async streams => {
let desktopVideoStream = streams.find(stream => stream.getType() === MEDIA_TYPE.VIDEO);
this._desktopAudioStream = streams.find(stream => stream.getType() === MEDIA_TYPE.AUDIO);
const { audioOnly = false } = options;
// If we're in audio only mode dispose of the video track otherwise the screensharing state will be
// inconsistent.
if (audioOnly) {
desktopVideoStream.dispose();
desktopVideoStream = undefined;
if (!this._desktopAudioStream) {
return Promise.reject(AUDIO_ONLY_SCREEN_SHARE_NO_TRACK);
}
}
if (desktopVideoStream) {
logger.debug(`_switchToScreenSharing is using ${desktopVideoStream} for useVideoStream`);
await this.useVideoStream(desktopVideoStream);
}
if (this._desktopAudioStream) {
const localAudio = getLocalJitsiAudioTrack(APP.store.getState());
// If there is a localAudio stream, mix in the desktop audio stream captured by the screen sharing
// api.
if (localAudio) {
this._mixerEffect = new AudioMixerEffect(this._desktopAudioStream);
logger.debug(`_switchToScreenSharing is mixing ${this._desktopAudioStream} and ${localAudio}`
+ ' as a single audio stream');
await localAudio.setEffect(this._mixerEffect);
} else {
// If no local stream is present ( i.e. no input audio devices) we use the screen share audio
// stream as we would use a regular stream.
logger.debug(`_switchToScreenSharing is using ${this._desktopAudioStream} for replacing it as`
+ ' the only audio track on the conference');
await room.replaceTrack(null, this._desktopAudioStream);
}
APP.store.dispatch(setScreenAudioShareState(true));
}
})
.then(() => {
this.videoSwitchInProgress = false;
if (isScreenshotCaptureEnabled(APP.store.getState(), false, true)) {
APP.store.dispatch(toggleScreenshotCaptureSummary(true));
}
sendAnalytics(createScreenSharingEvent('started'));
logger.log('Screen sharing started');
})
.catch(error => {
this.videoSwitchInProgress = false;
// Pawel: With this call I'm trying to preserve the original
// behaviour although it is not clear why would we "untoggle"
// on failure. I suppose it was to restore video in case there
// was some problem during "this.useVideoStream(desktopStream)".
// It's important to note that the handler will not be available
// if we fail early on trying to get desktop media (which makes
// sense, because the camera video is still being used, so
// nothing to "untoggle").
if (this._untoggleScreenSharing) {
this._untoggleScreenSharing();
}
// FIXME the code inside of _handleScreenSharingError is
// asynchronous, but does not return a Promise and is not part
// of the current Promise chain.
this._handleScreenSharingError(error);
return Promise.reject(error);
});
},
/**
* Handles {@link JitsiTrackError} returned by the lib-jitsi-meet when
* trying to create screensharing track. It will either do nothing if
* the dialog was canceled on user's request or display an error if
* screensharing couldn't be started.
* @param {JitsiTrackError} error - The error returned by
* {@link _createDesktopTrack} Promise.
* @private
*/
_handleScreenSharingError(error) {
if (error.name === JitsiTrackErrors.SCREENSHARING_USER_CANCELED) {
return;
}
logger.error('failed to share local desktop', error);
// Handling:
// JitsiTrackErrors.CONSTRAINT_FAILED
// JitsiTrackErrors.PERMISSION_DENIED
// JitsiTrackErrors.SCREENSHARING_GENERIC_ERROR
// and any other
let descriptionKey;
let titleKey;
if (error.name === JitsiTrackErrors.PERMISSION_DENIED) {
descriptionKey = 'dialog.screenSharingPermissionDeniedError';
titleKey = 'dialog.screenSharingFailedTitle';
} else if (error.name === JitsiTrackErrors.CONSTRAINT_FAILED) {
descriptionKey = 'dialog.cameraConstraintFailedError';
titleKey = 'deviceError.cameraError';
} else if (error.name === JitsiTrackErrors.SCREENSHARING_GENERIC_ERROR) {
descriptionKey = 'dialog.screenSharingFailed';
titleKey = 'dialog.screenSharingFailedTitle';
} else if (error === AUDIO_ONLY_SCREEN_SHARE_NO_TRACK) {
descriptionKey = 'notify.screenShareNoAudio';
titleKey = 'notify.screenShareNoAudioTitle';
}
APP.UI.messageHandler.showError({
descriptionKey,
titleKey
});
},
/**
* Setup interaction between conference and UI.
*/
_setupListeners() {
// add local streams when joined to the conference
room.on(JitsiConferenceEvents.CONFERENCE_JOINED, () => {
this._onConferenceJoined();
});
room.on(
JitsiConferenceEvents.CONFERENCE_JOIN_IN_PROGRESS,
() => APP.store.dispatch(conferenceJoinInProgress(room)));
room.on(
JitsiConferenceEvents.CONFERENCE_LEFT,
(...args) => {
APP.store.dispatch(conferenceTimestampChanged(0));
APP.store.dispatch(conferenceLeft(room, ...args));
});
room.on(
JitsiConferenceEvents.CONFERENCE_UNIQUE_ID_SET,
(...args) => {
// Preserve the sessionId so that the value is accessible even after room
// is disconnected.
room.sessionId = room.getMeetingUniqueId();
APP.store.dispatch(conferenceUniqueIdSet(room, ...args));
});
room.on(
JitsiConferenceEvents.AUTH_STATUS_CHANGED,
(authEnabled, authLogin) =>
APP.store.dispatch(authStatusChanged(authEnabled, authLogin)));
room.on(JitsiConferenceEvents.PARTCIPANT_FEATURES_CHANGED, user => {
APP.store.dispatch(updateRemoteParticipantFeatures(user));
});
room.on(JitsiConferenceEvents.USER_JOINED, (id, user) => {
if (config.iAmRecorder && user.isHiddenFromRecorder()) {
return;
}
// The logic shared between RN and web.
commonUserJoinedHandling(APP.store, room, user);
if (user.isHidden()) {
return;
}
APP.store.dispatch(updateRemoteParticipantFeatures(user));
logger.log(`USER ${id} connected:`, user);
APP.UI.addUser(user);
});
room.on(JitsiConferenceEvents.USER_LEFT, (id, user) => {
// The logic shared between RN and web.
commonUserLeftHandling(APP.store, room, user);
if (user.isHidden()) {
return;
}
logger.log(`USER ${id} LEFT:`, user);
});
room.on(JitsiConferenceEvents.USER_STATUS_CHANGED, (id, status) => {
APP.store.dispatch(participantPresenceChanged(id, status));
const user = room.getParticipantById(id);
if (user) {
APP.UI.updateUserStatus(user, status);
}
});
room.on(JitsiConferenceEvents.USER_ROLE_CHANGED, (id, role) => {
if (this.isLocalId(id)) {
logger.info(`My role changed, new role: ${role}`);
if (role === 'moderator') {
APP.store.dispatch(maybeSetLobbyChatMessageListener());
}
APP.store.dispatch(localParticipantRoleChanged(role));
APP.API.notifyUserRoleChanged(id, role);
} else {
APP.store.dispatch(participantRoleChanged(id, role));
}
});
room.on(JitsiConferenceEvents.TRACK_ADDED, track => {
if (!track || track.isLocal()) {
return;
}
if (config.iAmRecorder) {
const participant = room.getParticipantById(track.getParticipantId());
if (participant.isHiddenFromRecorder()) {
return;
}
}
APP.store.dispatch(trackAdded(track));
});
room.on(JitsiConferenceEvents.TRACK_REMOVED, track => {
if (!track || track.isLocal()) {
return;
}
APP.store.dispatch(trackRemoved(track));
});
room.on(JitsiConferenceEvents.TRACK_AUDIO_LEVEL_CHANGED, (id, lvl) => {
const localAudio = getLocalJitsiAudioTrack(APP.store.getState());
let newLvl = lvl;
if (this.isLocalId(id)) {
APP.store.dispatch(localParticipantAudioLevelChanged(lvl));
}
if (this.isLocalId(id) && localAudio?.isMuted()) {
newLvl = 0;
}
if (config.debug) {
this.audioLevelsMap[id] = newLvl;
if (config.debugAudioLevels) {
logger.log(`AudioLevel:${id}/${newLvl}`);
}
}
APP.UI.setAudioLevel(id, newLvl);
});
room.on(JitsiConferenceEvents.TRACK_MUTE_CHANGED, (track, participantThatMutedUs) => {
if (participantThatMutedUs) {
APP.store.dispatch(participantMutedUs(participantThatMutedUs, track));
if (this.isSharingScreen && track.isVideoTrack()) {
logger.debug('TRACK_MUTE_CHANGED while screen sharing');
this._turnScreenSharingOff(false);
}
}
});
room.on(JitsiConferenceEvents.TRACK_UNMUTE_REJECTED, track => APP.store.dispatch(destroyLocalTracks(track)));
room.on(JitsiConferenceEvents.SUBJECT_CHANGED,
subject => APP.store.dispatch(conferenceSubjectChanged(subject)));
room.on(
JitsiConferenceEvents.LAST_N_ENDPOINTS_CHANGED,
(leavingIds, enteringIds) =>
APP.UI.handleLastNEndpoints(leavingIds, enteringIds));
room.on(
JitsiConferenceEvents.P2P_STATUS,
(jitsiConference, p2p) =>
APP.store.dispatch(p2pStatusChanged(p2p)));
room.on(
JitsiConferenceEvents.PARTICIPANT_CONN_STATUS_CHANGED,
(id, connectionStatus) => APP.store.dispatch(
participantConnectionStatusChanged(id, connectionStatus)));
room.on(
JitsiConferenceEvents.DOMINANT_SPEAKER_CHANGED,
(dominant, previous) => APP.store.dispatch(dominantSpeakerChanged(dominant, previous, room)));
room.on(
JitsiConferenceEvents.CONFERENCE_CREATED_TIMESTAMP,
conferenceTimestamp => APP.store.dispatch(conferenceTimestampChanged(conferenceTimestamp)));
room.on(JitsiConferenceEvents.CONNECTION_INTERRUPTED, () => {
APP.store.dispatch(localParticipantConnectionStatusChanged(
JitsiParticipantConnectionStatus.INTERRUPTED));
});
room.on(JitsiConferenceEvents.CONNECTION_RESTORED, () => {
APP.store.dispatch(localParticipantConnectionStatusChanged(
JitsiParticipantConnectionStatus.ACTIVE));
});
room.on(
JitsiConferenceEvents.DISPLAY_NAME_CHANGED,
(id, displayName) => {
const formattedDisplayName
= getNormalizedDisplayName(displayName);
const state = APP.store.getState();
const {
defaultRemoteDisplayName
} = state['features/base/config'];
APP.store.dispatch(participantUpdated({
conference: room,
id,
name: formattedDisplayName
}));
const virtualScreenshareParticipantId = getVirtualScreenshareParticipantByOwnerId(state, id)?.id;
if (virtualScreenshareParticipantId) {
APP.store.dispatch(
screenshareParticipantDisplayNameChanged(virtualScreenshareParticipantId, formattedDisplayName)
);
}
APP.API.notifyDisplayNameChanged(id, {
displayName: formattedDisplayName,
formattedDisplayName:
appendSuffix(
formattedDisplayName
|| defaultRemoteDisplayName)
});
}
);
room.on(
JitsiConferenceEvents.BOT_TYPE_CHANGED,
(id, botType) => {
APP.store.dispatch(participantUpdated({
conference: room,
id,
botType
}));
}
);
room.on(
JitsiConferenceEvents.ENDPOINT_MESSAGE_RECEIVED,
(...args) => {
APP.store.dispatch(endpointMessageReceived(...args));
if (args && args.length >= 2) {
const [ sender, eventData ] = args;
if (eventData.name === ENDPOINT_TEXT_MESSAGE_NAME) {
APP.API.notifyEndpointTextMessageReceived({
senderInfo: {
jid: sender._jid,
id: sender._id
},
eventData
});
}
}
});
room.on(
JitsiConferenceEvents.NON_PARTICIPANT_MESSAGE_RECEIVED,
(...args) => APP.store.dispatch(nonParticipantMessageReceived(...args)));
room.on(
JitsiConferenceEvents.LOCK_STATE_CHANGED,
(...args) => APP.store.dispatch(lockStateChanged(room, ...args)));
room.on(JitsiConferenceEvents.KICKED, (participant, reason, isReplaced) => {
if (isReplaced) {
// this event triggers when the local participant is kicked, `participant`
// is the kicker. In replace participant case, kicker is undefined,
// as the server initiated it. We mark in store the local participant
// as being replaced based on jwt.
const localParticipant = getLocalParticipant(APP.store.getState());
APP.store.dispatch(participantUpdated({
conference: room,
id: localParticipant.id,
isReplaced
}));
// we send readyToClose when kicked participant is replace so that
// embedding app can choose to dispose the iframe API on the handler.
APP.API.notifyReadyToClose();
}
APP.store.dispatch(kickedOut(room, participant));
});
room.on(JitsiConferenceEvents.PARTICIPANT_KICKED, (kicker, kicked) => {
APP.store.dispatch(participantKicked(kicker, kicked));
});
room.on(JitsiConferenceEvents.SUSPEND_DETECTED, () => {
APP.store.dispatch(suspendDetected());
});
room.on(
JitsiConferenceEvents.AUDIO_UNMUTE_PERMISSIONS_CHANGED,
disableAudioMuteChange => {
APP.store.dispatch(setAudioUnmutePermissions(disableAudioMuteChange));
});
room.on(
JitsiConferenceEvents.VIDEO_UNMUTE_PERMISSIONS_CHANGED,
disableVideoMuteChange => {
APP.store.dispatch(setVideoUnmutePermissions(disableVideoMuteChange));
});
room.on(
JitsiE2ePingEvents.E2E_RTT_CHANGED,
(...args) => APP.store.dispatch(e2eRttChanged(...args)));
APP.UI.addListener(UIEvents.AUDIO_MUTED, muted => {
this.muteAudio(muted);
});
APP.UI.addListener(UIEvents.VIDEO_MUTED, muted => {
this.muteVideo(muted);
});
room.addCommandListener(this.commands.defaults.ETHERPAD,
({ value }) => {
APP.UI.initEtherpad(value);
}
);
APP.UI.addListener(UIEvents.EMAIL_CHANGED,
this.changeLocalEmail.bind(this));
room.addCommandListener(this.commands.defaults.EMAIL, (data, from) => {
APP.store.dispatch(participantUpdated({
conference: room,
id: from,
email: data.value
}));
});
room.addCommandListener(
this.commands.defaults.AVATAR_URL,
(data, from) => {
APP.store.dispatch(
participantUpdated({
conference: room,
id: from,
avatarURL: data.value
}));
});
APP.UI.addListener(UIEvents.NICKNAME_CHANGED,
this.changeLocalDisplayName.bind(this));
room.on(
JitsiConferenceEvents.START_MUTED_POLICY_CHANGED,
({ audio, video }) => {
APP.store.dispatch(
onStartMutedPolicyChanged(audio, video));
}
);
room.on(JitsiConferenceEvents.STARTED_MUTED, () => {
const audioMuted = room.isStartAudioMuted();
const videoMuted = room.isStartVideoMuted();
const localTracks = getLocalTracks(APP.store.getState()['features/base/tracks']);
const promises = [];
APP.store.dispatch(setAudioMuted(audioMuted));
APP.store.dispatch(setVideoMuted(videoMuted));
// Remove the tracks from the peerconnection.
for (const track of localTracks) {
// Always add the track on Safari because of a known issue where audio playout doesn't happen
// if the user joins audio and video muted, i.e., if there is no local media capture.
if (audioMuted && track.jitsiTrack?.getType() === MEDIA_TYPE.AUDIO && !browser.isWebKitBased()) {
promises.push(this.useAudioStream(null));
}
if (videoMuted && track.jitsiTrack?.getType() === MEDIA_TYPE.VIDEO) {
promises.push(this.useVideoStream(null));
}
}
Promise.allSettled(promises)
.then(() => {
APP.store.dispatch(showNotification({
titleKey: 'notify.mutedTitle',
descriptionKey: 'notify.muted'
}, NOTIFICATION_TIMEOUT_TYPE.SHORT));
});
});
room.on(
JitsiConferenceEvents.DATA_CHANNEL_OPENED, () => {
APP.store.dispatch(dataChannelOpened());
}
);
// call hangup
APP.UI.addListener(UIEvents.HANGUP, () => {
this.hangup(true);
});
// logout
APP.UI.addListener(UIEvents.LOGOUT, () => {
AuthHandler.logout(room).then(url => {
if (url) {
UIUtil.redirect(url);
} else {
this.hangup(true);
}
});
});
APP.UI.addListener(UIEvents.AUTH_CLICKED, () => {
AuthHandler.authenticate(room);
});
APP.UI.addListener(
UIEvents.VIDEO_DEVICE_CHANGED,
cameraDeviceId => {
const localVideo = getLocalJitsiVideoTrack(APP.store.getState());
const videoWasMuted = this.isLocalVideoMuted();
sendAnalytics(createDeviceChangedEvent('video', 'input'));
// If both screenshare and video are in progress, restart the
// presenter mode with the new camera device.
if (this.isSharingScreen && !videoWasMuted) {
const { height } = localVideo.track.getSettings();
// dispose the existing presenter track and create a new
// camera track.
// FIXME JitsiLocalTrack.dispose is async and should be waited for
this.localPresenterVideo && this.localPresenterVideo.dispose();
this.localPresenterVideo = null;
return this._createPresenterStreamEffect(height, cameraDeviceId)
.then(effect => localVideo.setEffect(effect))
.then(() => {
this.setVideoMuteStatus();
logger.log('Switched local video device while screen sharing and the video is unmuted');
this._updateVideoDeviceId();
})
.catch(err => APP.store.dispatch(notifyCameraError(err)));
// If screenshare is in progress but video is muted, update the default device
// id for video, dispose the existing presenter track and create a new effect
// that can be applied on un-mute.
} else if (this.isSharingScreen && videoWasMuted) {
logger.log('Switched local video device: while screen sharing and the video is muted');
const { height } = localVideo.track.getSettings();
this._updateVideoDeviceId();
// FIXME JitsiLocalTrack.dispose is async and should be waited for
this.localPresenterVideo && this.localPresenterVideo.dispose();
this.localPresenterVideo = null;
this._createPresenterStreamEffect(height, cameraDeviceId);
// if there is only video, switch to the new camera stream.
} else {
createLocalTracksF({
devices: [ 'video' ],
cameraDeviceId,
micDeviceId: null
})
.then(([ stream ]) => {
// if we are in audio only mode or video was muted before
// changing device, then mute
if (this.isAudioOnly() || videoWasMuted) {
return stream.mute()
.then(() => stream);
}
return stream;
})
.then(stream => {
logger.log('Switching the local video device.');
return this.useVideoStream(stream);
})
.then(() => {
logger.log('Switched local video device.');
this._updateVideoDeviceId();
})
.catch(error => {
logger.error(`Switching the local video device failed: ${error}`);
return APP.store.dispatch(notifyCameraError(error));
});
}
}
);
APP.UI.addListener(
UIEvents.AUDIO_DEVICE_CHANGED,
micDeviceId => {
const audioWasMuted = this.isLocalAudioMuted();
// When the 'default' mic needs to be selected, we need to
// pass the real device id to gUM instead of 'default' in order
// to get the correct MediaStreamTrack from chrome because of the
// following bug.
// https://bugs.chromium.org/p/chromium/issues/detail?id=997689
const hasDefaultMicChanged = micDeviceId === 'default';
sendAnalytics(createDeviceChangedEvent('audio', 'input'));
createLocalTracksF({
devices: [ 'audio' ],
cameraDeviceId: null,
micDeviceId: hasDefaultMicChanged
? getDefaultDeviceId(APP.store.getState(), 'audioInput')
: micDeviceId
})
.then(([ stream ]) => {
// if audio was muted before changing the device, mute
// with the new device
if (audioWasMuted) {
return stream.mute()
.then(() => stream);
}
return stream;
})
.then(async stream => {
// In case screen sharing audio is also shared we mix it with new input stream. The old _mixerEffect
// will be cleaned up when the existing track is replaced.
if (this._mixerEffect) {
this._mixerEffect = new AudioMixerEffect(this._desktopAudioStream);
await stream.setEffect(this._mixerEffect);
}
return this.useAudioStream(stream);
})
.then(() => {
const localAudio = getLocalJitsiAudioTrack(APP.store.getState());
if (localAudio && hasDefaultMicChanged) {
// workaround for the default device to be shown as selected in the
// settings even when the real device id was passed to gUM because of the
// above mentioned chrome bug.
localAudio._realDeviceId = localAudio.deviceId = 'default';
}
logger.log(`switched local audio device: ${localAudio?.getDeviceId()}`);
this._updateAudioDeviceId();
})
.catch(err => {
APP.store.dispatch(notifyMicError(err));
});
}
);
APP.UI.addListener(UIEvents.TOGGLE_AUDIO_ONLY, audioOnly => {
// FIXME On web video track is stored both in redux and in
// 'localVideo' field, video is attempted to be unmuted twice when
// turning off the audio only mode. This will crash the app with
// 'unmute operation is already in progress'.
// Because there's no logic in redux about creating new track in
// case unmute when not track exists the things have to go through
// muteVideo logic in such case.
const tracks = APP.store.getState()['features/base/tracks'];
const isTrackInRedux
= Boolean(
tracks.find(
track => track.jitsiTrack
&& track.jitsiTrack.getType() === 'video'));
if (!isTrackInRedux) {
this.muteVideo(audioOnly);
}
// Immediately update the UI by having remote videos and the large
// video update themselves instead of waiting for some other event
// to cause the update, usually PARTICIPANT_CONN_STATUS_CHANGED.
// There is no guarantee another event will trigger the update
// immediately and in all situations, for example because a remote
// participant is having connection trouble so no status changes.
const displayedUserId = APP.UI.getLargeVideoID();
if (displayedUserId) {
APP.UI.updateLargeVideo(displayedUserId, true);
}
});
APP.UI.addListener(
UIEvents.TOGGLE_SCREENSHARING, ({ enabled, audioOnly, ignoreDidHaveVideo }) => {
this.toggleScreenSharing(enabled, { audioOnly }, ignoreDidHaveVideo);
}
);
},
/**
* Cleanups local conference on suspend.
*/
onSuspendDetected() {
// After wake up, we will be in a state where conference is left
// there will be dialog shown to user.
// We do not want video/audio as we show an overlay and after it
// user need to rejoin or close, while waking up we can detect
// camera wakeup as a problem with device.
// We also do not care about device change, which happens
// on resume after suspending PC.
if (this.deviceChangeListener) {
JitsiMeetJS.mediaDevices.removeEventListener(
JitsiMediaDevicesEvents.DEVICE_LIST_CHANGED,
this.deviceChangeListener);
}
},
/**
* Callback invoked when the conference has been successfully joined.
* Initializes the UI and various other features.
*
* @private
* @returns {void}
*/
_onConferenceJoined() {
const { dispatch } = APP.store;
APP.UI.initConference();
if (!config.disableShortcuts) {
APP.keyboardshortcut.init();
}
dispatch(conferenceJoined(room));
const jwt = APP.store.getState()['features/base/jwt'];
if (jwt?.user?.hiddenFromRecorder) {
dispatch(muteLocal(true, MEDIA_TYPE.AUDIO));
dispatch(muteLocal(true, MEDIA_TYPE.VIDEO));
dispatch(setAudioUnmutePermissions(true, true));
dispatch(setVideoUnmutePermissions(true, true));
}
},
/**
* Updates the list of current devices.
* @param {boolean} setDeviceListChangeHandler - Whether to add the deviceList change handlers.
* @private
* @returns {Promise}
*/
_initDeviceList(setDeviceListChangeHandler = false) {
const { mediaDevices } = JitsiMeetJS;
if (mediaDevices.isDeviceListAvailable()
&& mediaDevices.isDeviceChangeAvailable()) {
if (setDeviceListChangeHandler) {
this.deviceChangeListener = devices =>
window.setTimeout(() => this._onDeviceListChanged(devices), 0);
mediaDevices.addEventListener(
JitsiMediaDevicesEvents.DEVICE_LIST_CHANGED,
this.deviceChangeListener);
}
const { dispatch } = APP.store;
return dispatch(getAvailableDevices())
.then(devices => {
// Ugly way to synchronize real device IDs with local
// storage and settings menu. This is a workaround until
// getConstraints() method will be implemented in browsers.
this._updateAudioDeviceId();
this._updateVideoDeviceId();
APP.UI.onAvailableDevicesChanged(devices);
});
}
return Promise.resolve();
},
/**
* Updates the settings for the currently used video device, extracting
* the device id from the used track.
* @private
*/
_updateVideoDeviceId() {
const localVideo = getLocalJitsiVideoTrack(APP.store.getState());
if (localVideo && localVideo.videoType === 'camera') {
APP.store.dispatch(updateSettings({
cameraDeviceId: localVideo.getDeviceId()
}));
}
// If screenshare is in progress, get the device id from the presenter track.
if (this.localPresenterVideo) {
APP.store.dispatch(updateSettings({
cameraDeviceId: this.localPresenterVideo.getDeviceId()
}));
}
},
/**
* Updates the settings for the currently used audio device, extracting
* the device id from the used track.
* @private
*/
_updateAudioDeviceId() {
const localAudio = getLocalJitsiAudioTrack(APP.store.getState());
if (localAudio) {
APP.store.dispatch(updateSettings({
micDeviceId: localAudio.getDeviceId()
}));
}
},
/**
* Event listener for JitsiMediaDevicesEvents.DEVICE_LIST_CHANGED to
* handle change of available media devices.
* @private
* @param {MediaDeviceInfo[]} devices
* @returns {Promise}
*/
_onDeviceListChanged(devices) {
const oldDevices = APP.store.getState()['features/base/devices'].availableDevices;
const localAudio = getLocalJitsiAudioTrack(APP.store.getState());
const localVideo = getLocalJitsiVideoTrack(APP.store.getState());
APP.store.dispatch(updateDeviceList(devices));
// Firefox users can choose their preferred device in the gUM prompt. In that case
// we should respect that and not attempt to switch to the preferred device from
// our settings.
const newLabelsOnly = mediaDeviceHelper.newDeviceListAddedLabelsOnly(oldDevices, devices);
const newDevices
= mediaDeviceHelper.getNewMediaDevicesAfterDeviceListChanged(
devices,
this.isSharingScreen,
localVideo,
localAudio,
newLabelsOnly);
const promises = [];
const audioWasMuted = this.isLocalAudioMuted();
const videoWasMuted = this.isLocalVideoMuted();
const requestedInput = {
audio: Boolean(newDevices.audioinput),
video: Boolean(newDevices.videoinput)
};
if (typeof newDevices.audiooutput !== 'undefined') {
const { dispatch } = APP.store;
const setAudioOutputPromise
= setAudioOutputDeviceId(newDevices.audiooutput, dispatch)
.catch(); // Just ignore any errors in catch block.
promises.push(setAudioOutputPromise);
}
// Handles the use case when the default device is changed (we are always stopping the streams because it's
// simpler):
// If the default device is changed we need to first stop the local streams and then call GUM. Otherwise GUM
// will return a stream using the old default device.
if (requestedInput.audio && localAudio) {
localAudio.stopStream();
}
if (requestedInput.video && localVideo) {
localVideo.stopStream();
}
// Let's handle unknown/non-preferred devices
const newAvailDevices
= APP.store.getState()['features/base/devices'].availableDevices;
let newAudioDevices = [];
let oldAudioDevices = [];
if (typeof newDevices.audiooutput === 'undefined') {
newAudioDevices = newAvailDevices.audioOutput;
oldAudioDevices = oldDevices.audioOutput;
}
if (!requestedInput.audio) {
newAudioDevices = newAudioDevices.concat(newAvailDevices.audioInput);
oldAudioDevices = oldAudioDevices.concat(oldDevices.audioInput);
}
// check for audio
if (newAudioDevices.length > 0) {
APP.store.dispatch(
checkAndNotifyForNewDevice(newAudioDevices, oldAudioDevices));
}
// check for video
if (!requestedInput.video) {
APP.store.dispatch(
checkAndNotifyForNewDevice(newAvailDevices.videoInput, oldDevices.videoInput));
}
// When the 'default' mic needs to be selected, we need to
// pass the real device id to gUM instead of 'default' in order
// to get the correct MediaStreamTrack from chrome because of the
// following bug.
// https://bugs.chromium.org/p/chromium/issues/detail?id=997689
const hasDefaultMicChanged = newDevices.audioinput === 'default';
// This is the case when the local video is muted and a preferred device is connected.
if (requestedInput.video && this.isLocalVideoMuted()) {
// We want to avoid creating a new video track in order to prevent turning on the camera.
requestedInput.video = false;
APP.store.dispatch(updateSettings({ // Update the current selected camera for the device selection dialog.
cameraDeviceId: newDevices.videoinput
}));
delete newDevices.videoinput;
// Removing the current video track in order to force the unmute to select the preferred device.
logger.debug('_onDeviceListChanged: Removing the current video track.');
this.useVideoStream(null);
}
promises.push(
mediaDeviceHelper.createLocalTracksAfterDeviceListChanged(
createLocalTracksF,
newDevices.videoinput,
hasDefaultMicChanged
? getDefaultDeviceId(APP.store.getState(), 'audioInput')
: newDevices.audioinput)
.then(tracks => {
// If audio or video muted before, or we unplugged current
// device and selected new one, then mute new track.
const muteSyncPromises = tracks.map(track => {
if ((track.isVideoTrack() && videoWasMuted)
|| (track.isAudioTrack() && audioWasMuted)) {
return track.mute();
}
return Promise.resolve();
});
return Promise.all(muteSyncPromises)
.then(() =>
Promise.all(Object.keys(requestedInput).map(mediaType => {
if (requestedInput[mediaType]) {
const useStream
= mediaType === 'audio'
? this.useAudioStream.bind(this)
: this.useVideoStream.bind(this);
const track = tracks.find(t => t.getType() === mediaType) || null;
// Use the new stream or null if we failed to obtain it.
return useStream(track)
.then(() => {
if (track?.isAudioTrack() && hasDefaultMicChanged) {
// workaround for the default device to be shown as selected in the
// settings even when the real device id was passed to gUM because of
// the above mentioned chrome bug.
track._realDeviceId = track.deviceId = 'default';
}
mediaType === 'audio'
? this._updateAudioDeviceId()
: this._updateVideoDeviceId();
});
}
return Promise.resolve();
})));
})
.then(() => {
// Log and sync known mute state.
if (audioWasMuted) {
sendAnalytics(createTrackMutedEvent(
'audio',
'device list changed'));
logger.log('Audio mute: device list changed');
muteLocalAudio(true);
}
if (!this.isSharingScreen && videoWasMuted) {
sendAnalytics(createTrackMutedEvent(
'video',
'device list changed'));
logger.log('Video mute: device list changed');
muteLocalVideo(true);
}
}));
return Promise.all(promises)
.then(() => {
APP.UI.onAvailableDevicesChanged(devices);
});
},
/**
* Determines whether or not the audio button should be enabled.
*/
updateAudioIconEnabled() {
const localAudio = getLocalJitsiAudioTrack(APP.store.getState());
const audioMediaDevices = APP.store.getState()['features/base/devices'].availableDevices.audioInput;
const audioDeviceCount = audioMediaDevices ? audioMediaDevices.length : 0;
// The audio functionality is considered available if there are any
// audio devices detected or if the local audio stream already exists.
const available = audioDeviceCount > 0 || Boolean(localAudio);
APP.store.dispatch(setAudioAvailable(available));
APP.API.notifyAudioAvailabilityChanged(available);
},
/**
* Determines whether or not the video button should be enabled.
*/
updateVideoIconEnabled() {
const videoMediaDevices
= APP.store.getState()['features/base/devices'].availableDevices.videoInput;
const videoDeviceCount
= videoMediaDevices ? videoMediaDevices.length : 0;
const localVideo = getLocalJitsiVideoTrack(APP.store.getState());
// The video functionality is considered available if there are any
// video devices detected or if there is local video stream already
// active which could be either screensharing stream or a video track
// created before the permissions were rejected (through browser
// config).
const available = videoDeviceCount > 0 || Boolean(localVideo);
APP.store.dispatch(setVideoAvailable(available));
APP.API.notifyVideoAvailabilityChanged(available);
},
/**
* Disconnect from the conference and optionally request user feedback.
* @param {boolean} [requestFeedback=false] if user feedback should be
* requested
*/
hangup(requestFeedback = false) {
APP.store.dispatch(disableReceiver());
this._stopProxyConnection();
APP.store.dispatch(destroyLocalTracks());
this._localTracksInitialized = false;
// Remove unnecessary event listeners from firing callbacks.
if (this.deviceChangeListener) {
JitsiMeetJS.mediaDevices.removeEventListener(
JitsiMediaDevicesEvents.DEVICE_LIST_CHANGED,
this.deviceChangeListener);
}
APP.UI.removeAllListeners();
let requestFeedbackPromise;
if (requestFeedback) {
requestFeedbackPromise
= APP.store.dispatch(maybeOpenFeedbackDialog(room))
// false because the thank you dialog shouldn't be displayed
.catch(() => Promise.resolve(false));
} else {
requestFeedbackPromise = Promise.resolve(true);
}
Promise.all([
requestFeedbackPromise,
this.leaveRoom()
])
.then(values => {
this._room = undefined;
room = undefined;
/**
* Don't call {@code notifyReadyToClose} if the promotional page flag is set
* and let the page take care of sending the message, since there will be
* a redirect to the page regardlessly.
*/
if (!interfaceConfig.SHOW_PROMOTIONAL_CLOSE_PAGE) {
APP.API.notifyReadyToClose();
}
APP.store.dispatch(maybeRedirectToWelcomePage(values[0]));
});
},
/**
* Leaves the room.
*
* @param {boolean} doDisconnect - Wether leaving the room should also terminate the connection.
* @returns {Promise}
*/
async leaveRoom(doDisconnect = true) {
APP.store.dispatch(conferenceWillLeave(room));
if (room && room.isJoined()) {
return room.leave().finally(() => {
if (doDisconnect) {
return disconnect();
}
});
}
if (doDisconnect) {
return disconnect();
}
},
/**
* Changes the email for the local user
* @param email {string} the new email
*/
changeLocalEmail(email = '') {
const localParticipant = getLocalParticipant(APP.store.getState());
const formattedEmail = String(email).trim();
if (formattedEmail === localParticipant.email) {
return;
}
const localId = localParticipant.id;
APP.store.dispatch(participantUpdated({
// XXX Only the local participant is allowed to update without
// stating the JitsiConference instance (i.e. participant property
// `conference` for a remote participant) because the local
// participant is uniquely identified by the very fact that there is
// only one local participant.
id: localId,
local: true,
email: formattedEmail
}));
APP.store.dispatch(updateSettings({
email: formattedEmail
}));
APP.API.notifyEmailChanged(localId, {
email: formattedEmail
});
sendData(commands.EMAIL, formattedEmail);
},
/**
* Changes the avatar url for the local user
* @param url {string} the new url
*/
changeLocalAvatarUrl(url = '') {
const { avatarURL, id } = getLocalParticipant(APP.store.getState());
const formattedUrl = String(url).trim();
if (formattedUrl === avatarURL) {
return;
}
APP.store.dispatch(participantUpdated({
// XXX Only the local participant is allowed to update without
// stating the JitsiConference instance (i.e. participant property
// `conference` for a remote participant) because the local
// participant is uniquely identified by the very fact that there is
// only one local participant.
id,
local: true,
avatarURL: formattedUrl
}));
APP.store.dispatch(updateSettings({
avatarURL: formattedUrl
}));
sendData(commands.AVATAR_URL, url);
},
/**
* Sends a message via the data channel.
* @param {string} to the id of the endpoint that should receive the
* message. If "" - the message will be sent to all participants.
* @param {object} payload the payload of the message.
* @throws NetworkError or InvalidStateError or Error if the operation
* fails.
*/
sendEndpointMessage(to, payload) {
room.sendEndpointMessage(to, payload);
},
/**
* Adds new listener.
* @param {String} eventName the name of the event
* @param {Function} listener the listener.
*/
addListener(eventName, listener) {
eventEmitter.addListener(eventName, listener);
},
/**
* Removes listener.
* @param {String} eventName the name of the event that triggers the
* listener
* @param {Function} listener the listener.
*/
removeListener(eventName, listener) {
eventEmitter.removeListener(eventName, listener);
},
/**
* Changes the display name for the local user
* @param nickname {string} the new display name
*/
changeLocalDisplayName(nickname = '') {
const formattedNickname = getNormalizedDisplayName(nickname);
const { id, name } = getLocalParticipant(APP.store.getState());
if (formattedNickname === name) {
return;
}
APP.store.dispatch(participantUpdated({
// XXX Only the local participant is allowed to update without
// stating the JitsiConference instance (i.e. participant property
// `conference` for a remote participant) because the local
// participant is uniquely identified by the very fact that there is
// only one local participant.
id,
local: true,
name: formattedNickname
}));
APP.store.dispatch(updateSettings({
displayName: formattedNickname
}));
},
/**
* Callback invoked by the external api create or update a direct connection
* from the local client to an external client.
*
* @param {Object} event - The object containing information that should be
* passed to the {@code ProxyConnectionService}.
* @returns {void}
*/
onProxyConnectionEvent(event) {
if (!this._proxyConnection) {
this._proxyConnection = new JitsiMeetJS.ProxyConnectionService({
/**
* Pass the {@code JitsiConnection} instance which will be used
* to fetch TURN credentials.
*/
jitsiConnection: APP.connection,
/**
* The proxy connection feature is currently tailored towards
* taking a proxied video stream and showing it as a local
* desktop screen.
*/
convertVideoToDesktop: true,
/**
* Callback invoked when the connection has been closed
* automatically. Triggers cleanup of screensharing if active.
*
* @returns {void}
*/
onConnectionClosed: () => {
if (this._untoggleScreenSharing) {
this._untoggleScreenSharing();
}
},
/**
* Callback invoked to pass messages from the local client back
* out to the external client.
*
* @param {string} peerJid - The jid of the intended recipient
* of the message.
* @param {Object} data - The message that should be sent. For
* screensharing this is an iq.
* @returns {void}
*/
onSendMessage: (peerJid, data) =>
APP.API.sendProxyConnectionEvent({
data,
to: peerJid
}),
/**
* Callback invoked when the remote peer of the proxy connection
* has provided a video stream, intended to be used as a local
* desktop stream.
*
* @param {JitsiLocalTrack} remoteProxyStream - The media
* stream to use as a local desktop stream.
* @returns {void}
*/
onRemoteStream: desktopStream => {
if (desktopStream.videoType !== 'desktop') {
logger.warn('Received a non-desktop stream to proxy.');
desktopStream.dispose();
return;
}
this.toggleScreenSharing(undefined, { desktopStream });
}
});
}
this._proxyConnection.processMessage(event);
},
/**
* Sets the video muted status.
*/
setVideoMuteStatus() {
APP.UI.setVideoMuted(this.getMyUserId());
},
/**
* Sets the audio muted status.
*
* @param {boolean} muted - New muted status.
*/
setAudioMuteStatus(muted) {
APP.UI.setAudioMuted(this.getMyUserId(), muted);
APP.API.notifyAudioMutedStatusChanged(muted);
},
/**
* Dispatches the passed in feedback for submission. The submitted score
* should be a number inclusively between 1 through 5, or -1 for no score.
*
* @param {number} score - a number between 1 and 5 (inclusive) or -1 for no
* score.
* @param {string} message - An optional message to attach to the feedback
* in addition to the score.
* @returns {void}
*/
submitFeedback(score = -1, message = '') {
if (score === -1 || (score >= 1 && score <= 5)) {
APP.store.dispatch(submitFeedback(score, message, room));
}
},
/**
* Terminates any proxy screensharing connection that is active.
*
* @private
* @returns {void}
*/
_stopProxyConnection() {
if (this._proxyConnection) {
this._proxyConnection.stop();
}
this._proxyConnection = null;
}
};