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conference.js
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conference.js
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/* global APP, JitsiMeetJS, config, interfaceConfig */
import EventEmitter from 'events';
import Logger from 'jitsi-meet-logger';
import * as JitsiMeetConferenceEvents from './ConferenceEvents';
import { openConnection } from './connection';
import { ENDPOINT_TEXT_MESSAGE_NAME } from './modules/API/constants';
import AuthHandler from './modules/UI/authentication/AuthHandler';
import UIUtil from './modules/UI/util/UIUtil';
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 {
AVATAR_ID_COMMAND,
AVATAR_URL_COMMAND,
EMAIL_COMMAND,
authStatusChanged,
commonUserJoinedHandling,
commonUserLeftHandling,
conferenceFailed,
conferenceJoined,
conferenceLeft,
conferenceSubjectChanged,
conferenceTimestampChanged,
conferenceWillJoin,
conferenceWillLeave,
dataChannelOpened,
kickedOut,
lockStateChanged,
onStartMutedPolicyChanged,
p2pStatusChanged,
sendLocalParticipant,
setDesktopSharingEnabled
} from './react/features/base/conference';
import {
checkAndNotifyForNewDevice,
getAvailableDevices,
getDefaultDeviceId,
notifyCameraError,
notifyMicError,
setAudioOutputDeviceId,
updateDeviceList
} from './react/features/base/devices';
import {
isFatalJitsiConnectionError,
JitsiConferenceErrors,
JitsiConferenceEvents,
JitsiConnectionErrors,
JitsiConnectionEvents,
JitsiMediaDevicesEvents,
JitsiParticipantConnectionStatus,
JitsiTrackErrors,
JitsiTrackEvents
} from './react/features/base/lib-jitsi-meet';
import {
isVideoMutedByUser,
MEDIA_TYPE,
setAudioAvailable,
setAudioMuted,
setVideoAvailable,
setVideoMuted
} from './react/features/base/media';
import {
dominantSpeakerChanged,
getLocalParticipant,
getNormalizedDisplayName,
getParticipantById,
localParticipantConnectionStatusChanged,
localParticipantRoleChanged,
participantConnectionStatusChanged,
participantKicked,
participantMutedUs,
participantPresenceChanged,
participantRoleChanged,
participantUpdated
} from './react/features/base/participants';
import {
getUserSelectedCameraDeviceId,
updateSettings
} from './react/features/base/settings';
import {
createLocalPresenterTrack,
createLocalTracksF,
destroyLocalTracks,
getLocalJitsiAudioTrack,
getLocalJitsiVideoTrack,
isLocalVideoTrackMuted,
isLocalTrackMuted,
isUserInteractionRequiredForUnmute,
replaceLocalTrack,
trackAdded,
trackRemoved
} from './react/features/base/tracks';
import {
getBackendSafePath,
getJitsiMeetGlobalNS
} from './react/features/base/util';
import { showDesktopPicker } from './react/features/desktop-picker';
import { appendSuffix } from './react/features/display-name';
import { setE2EEKey } from './react/features/e2ee';
import {
maybeOpenFeedbackDialog,
submitFeedback
} from './react/features/feedback';
import { showNotification } from './react/features/notifications';
import { mediaPermissionPromptVisibilityChanged } from './react/features/overlay';
import { suspendDetected } from './react/features/power-monitor';
import {
initPrejoin,
isPrejoinPageEnabled,
isPrejoinPageVisible
} from './react/features/prejoin';
import { createRnnoiseProcessorPromise } from './react/features/rnnoise';
import { toggleScreenshotCaptureEffect } from './react/features/screenshot-capture';
import { setSharedVideoStatus } from './react/features/shared-video';
import { AudioMixerEffect } from './react/features/stream-effects/audio-mixer/AudioMixerEffect';
import { createPresenterEffect } from './react/features/stream-effects/presenter';
import { endpointMessageReceived } from './react/features/subtitles';
import UIEvents from './service/UI/UIEvents';
import * as RemoteControlEvents
from './service/remotecontrol/RemoteControlEvents';
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;
/**
* 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_ID: AVATAR_ID_COMMAND,
AVATAR_URL: AVATAR_URL_COMMAND,
CUSTOM_ROLE: 'custom-role',
EMAIL: EMAIL_COMMAND,
ETHERPAD: 'etherpad',
SHARED_VIDEO: 'shared-video'
};
/**
* 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 });
}
/**
* Get user nickname by user id.
* @param {string} id user id
* @returns {string?} user nickname or undefined if user is unknown.
*/
function getDisplayName(id) {
const participant = getParticipantById(APP.store.getState(), id);
return participant && participant.name;
}
/**
* 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: {
// Schedule reconnect to check if someone else created the room.
this.reconnectTimeout = setTimeout(() => {
APP.store.dispatch(conferenceWillJoin(room));
room.join();
}, 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.UI.notifyFocusDisconnected(focus, retrySec);
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:
connection.disconnect();
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);
}
AuthHandler.closeAuth();
}
/**
*
*/
_handleConferenceJoined() {
this._unsubscribe();
this._resolve();
}
/**
*
*/
connect() {
room.join();
}
}
/**
* 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,
/**
* Indicates if the desktop sharing functionality has been enabled.
* It takes into consideration the status returned by
* {@link JitsiMeetJS.isDesktopSharingEnabled()}. The latter can be false
* either if the desktop sharing is not supported by the current browser
* or if it was disabled through lib-jitsi-meet specific options (check
* config.js for listed options).
*/
isDesktopSharingEnabled: false,
/**
* The local audio track (if any).
* FIXME tracks from redux store should be the single source of truth
* @type {JitsiLocalTrack|null}
*/
localAudio: null,
/**
* The local presenter video track (if any).
* @type {JitsiLocalTrack|null}
*/
localPresenterVideo: null,
/**
* The local video track (if any).
* FIXME tracks from redux store should be the single source of truth, but
* more refactoring is required around screen sharing ('localVideo' usages).
* @type {JitsiLocalTrack|null}
*/
localVideo: 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 = {};
const initialDevices = [ 'audio' ];
const requestedAudio = true;
let requestedVideo = false;
// Always get a handle on the audio input device so that we have statistics even if the user joins the
// conference muted. Previous implementation would only acquire the handle when the user first unmuted,
// which would results in statistics ( such as "No audio input" or "Are you trying to speak?") being available
// only after that point.
if (options.startWithAudioMuted) {
this.muteAudio(true, true);
}
if (!options.startWithVideoMuted
&& !options.startAudioOnly
&& !options.startScreenSharing) {
initialDevices.push('video');
requestedVideo = true;
}
JitsiMeetJS.mediaDevices.addEventListener(
JitsiMediaDevicesEvents.PERMISSION_PROMPT_IS_SHOWN,
browser =>
APP.store.dispatch(
mediaPermissionPromptVisibilityChanged(true, browser))
);
let tryCreateLocalTracks;
// FIXME is there any simpler way to rewrite this spaghetti below ?
if (options.startScreenSharing) {
tryCreateLocalTracks = this._createDesktopTrack()
.then(([ desktopStream ]) => {
if (!requestedAudio) {
return [ desktopStream ];
}
return createLocalTracksF({ devices: [ 'audio' ] }, true)
.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({ devices: [ 'audio' ] }, true)
: [];
})
.catch(error => {
errors.audioOnlyError = error;
return [];
});
} else if (!requestedAudio && !requestedVideo) {
// Resolve with no tracks
tryCreateLocalTracks = Promise.resolve([]);
} else {
tryCreateLocalTracks = createLocalTracksF({ devices: initialDevices }, true)
.catch(err => {
if (requestedAudio && requestedVideo) {
// Try audio only...
errors.audioAndVideoError = err;
return (
createLocalTracksF({ devices: [ 'audio' ] }, true));
} 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: [ 'video' ] }, 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 rquired, 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(mediaPermissionPromptVisibilityChanged(false));
return tracks;
});
return {
tryCreateLocalTracks,
errors
};
},
/**
* 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);
const {
audioAndVideoError,
audioOnlyError,
screenSharingError,
videoOnlyError
} = errors;
return Promise.all([ tryCreateLocalTracks, connect(roomName) ])
.then(([ tracks, con ]) => {
// 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 ($.prompt.close();
// is called). Need to figure out dialogs chaining to fix that.
if (screenSharingError) {
this._handleScreenSharingError(screenSharingError);
}
if (audioAndVideoError || audioOnlyError) {
if (audioOnlyError || videoOnlyError) {
// If both requests for 'audio' + 'video' and 'audio'
// only failed, we assume that there are some problems
// with user's microphone and show corresponding dialog.
APP.store.dispatch(notifyMicError(audioOnlyError));
APP.store.dispatch(notifyCameraError(videoOnlyError));
} else {
// If request for 'audio' + 'video' failed, but request
// for 'audio' only was OK, we assume that we had
// problems with camera and show corresponding dialog.
APP.store.dispatch(
notifyCameraError(audioAndVideoError));
}
}
return [ tracks, con ];
});
},
startConference(con, tracks) {
tracks.forEach(track => {
if ((track.isAudioTrack() && this.isLocalAudioMuted())
|| (track.isVideoTrack() && this.isLocalVideoMuted())) {
const mediaType = track.getType();
sendAnalytics(
createTrackMutedEvent(mediaType, 'initial mute'));
logger.log(`${mediaType} mute: initially muted.`);
track.mute();
}
});
logger.log(`Initialized with ${tracks.length} local tracks`);
this._localTracksInitialized = true;
con.addEventListener(JitsiConnectionEvents.CONNECTION_FAILED, _connectionFailedHandler);
APP.connection = connection = con;
// Desktop sharing related stuff:
this.isDesktopSharingEnabled
= JitsiMeetJS.isDesktopSharingEnabled();
eventEmitter.emit(JitsiMeetConferenceEvents.DESKTOP_SHARING_ENABLED_CHANGED, this.isDesktopSharingEnabled);
APP.store.dispatch(
setDesktopSharingEnabled(this.isDesktopSharingEnabled));
this._createRoom(tracks);
APP.remoteControl.init();
// 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(true);
}
if (config.iAmRecorder) {
this.recorder = new Recorder();
}
if (config.startSilent) {
sendAnalytics(createStartSilentEvent());
APP.store.dispatch(showNotification({
descriptionKey: 'notify.startSilentDescription',
titleKey: 'notify.startSilentTitle'
}));
}
// 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: config.startWithAudioMuted
|| config.startSilent
|| isUserInteractionRequiredForUnmute(APP.store.getState()),
startWithVideoMuted: config.startWithVideoMuted
|| isUserInteractionRequiredForUnmute(APP.store.getState())
};
this.roomName = roomName;
window.addEventListener('hashchange', this.onHashChange.bind(this), false);
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);
}
if (isPrejoinPageEnabled(APP.store.getState())) {
_connectionPromise = connect(roomName);
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);
return APP.store.dispatch(initPrejoin(tracks, errors));
}
const [ tracks, con ] = await this.createInitialLocalTracksAndConnect(
roomName, initialOptions);
this._initDeviceList(true);
return this.startConference(con, tracks);
},
/**
* Joins conference after the tracks have been configured in the prejoin screen.
*
* @param {Object[]} tracks - An array with the configured tracks
* @returns {Promise}
*/
async prejoinStart(tracks) {
const con = await _connectionPromise;
return this.startConference(con, tracks);
},
/**
* 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
? isLocalVideoTrackMuted(
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) {
if (!mute
&& isUserInteractionRequiredForUnmute(APP.store.getState())) {
logger.error('Unmuting audio requires user interaction');
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;
}
if (!this.localAudio && !mute) {
const maybeShowErrorDialog = error => {
showUI && APP.store.dispatch(notifyMicError(error));
};
createLocalTracksF({ devices: [ 'audio' ] }, false)
.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));
};
if (mute) {
try {
await this.localVideo.setEffect(undefined);
} catch (err) {
logger.error('Failed to remove the presenter effect', err);
maybeShowErrorDialog(err);
}
} else {
try {
await this.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 (!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(mute);
return;
} else if (this.isLocalVideoMuted() === mute) {
// NO-OP
return;
}
if (!this.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' ] }, false)
.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 => 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) {