jiti-meet/react/features/base/tracks/functions.js

200 lines
6.5 KiB
JavaScript

/* global APP */
import JitsiMeetJS, { JitsiTrackEvents } from '../lib-jitsi-meet';
import { MEDIA_TYPE } from '../media';
const logger = require('jitsi-meet-logger').getLogger(__filename);
/**
* Create local tracks of specific types.
*
* @param {Object} options - The options with which the local tracks are to be
* created.
* @param {string|null} [options.cameraDeviceId] - Camera device id or
* {@code undefined} to use app's settings.
* @param {string[]} options.devices - Required track types such as 'audio'
* and/or 'video'.
* @param {string|null} [options.micDeviceId] - Microphone device id or
* {@code undefined} to use app's settings.
* @param {boolean} [firePermissionPromptIsShownEvent] - Whether lib-jitsi-meet
* should check for a {@code getUserMedia} permission prompt and fire a
* corresponding event.
* @param {Object} store - The redux store in the context of which the function
* is to execute and from which state such as {@code config} is to be retrieved.
* @returns {Promise<JitsiLocalTrack[]>}
*/
export function createLocalTracksF(
options,
firePermissionPromptIsShownEvent,
store) {
options || (options = {}); // eslint-disable-line no-param-reassign
let { cameraDeviceId, micDeviceId } = options;
if (typeof APP !== 'undefined') {
// TODO The app's settings should go in the redux store and then the
// reliance on the global variable APP will go away.
if (typeof cameraDeviceId === 'undefined' || cameraDeviceId === null) {
cameraDeviceId = APP.settings.getCameraDeviceId();
}
if (typeof micDeviceId === 'undefined' || micDeviceId === null) {
micDeviceId = APP.settings.getMicDeviceId();
}
store || (store = APP.store); // eslint-disable-line no-param-reassign
}
const {
firefox_fake_device, // eslint-disable-line camelcase
resolution
} = store.getState()['features/base/config'];
return (
JitsiMeetJS.createLocalTracks(
{
cameraDeviceId,
desktopSharingExtensionExternalInstallation:
options.desktopSharingExtensionExternalInstallation,
desktopSharingSources: options.desktopSharingSources,
// Copy array to avoid mutations inside library.
devices: options.devices.slice(0),
firefox_fake_device, // eslint-disable-line camelcase
micDeviceId,
resolution
},
firePermissionPromptIsShownEvent)
.then(tracks => {
// TODO JitsiTrackEvents.NO_DATA_FROM_SOURCE should probably be
// dispatched in the redux store here and then
// APP.UI.showTrackNotWorkingDialog should be in a middleware
// somewhere else.
if (typeof APP !== 'undefined') {
tracks.forEach(track =>
track.on(
JitsiTrackEvents.NO_DATA_FROM_SOURCE,
APP.UI.showTrackNotWorkingDialog.bind(null, track)));
}
return tracks;
})
.catch(err => {
logger.error('Failed to create local tracks', options.devices, err);
return Promise.reject(err);
}));
}
/**
* Returns local audio track.
*
* @param {Track[]} tracks - List of all tracks.
* @returns {(Track|undefined)}
*/
export function getLocalAudioTrack(tracks) {
return getLocalTrack(tracks, MEDIA_TYPE.AUDIO);
}
/**
* Returns local track by media type.
*
* @param {Track[]} tracks - List of all tracks.
* @param {MEDIA_TYPE} mediaType - Media type.
* @returns {(Track|undefined)}
*/
export function getLocalTrack(tracks, mediaType) {
return tracks.find(t => t.local && t.mediaType === mediaType);
}
/**
* Returns local video track.
*
* @param {Track[]} tracks - List of all tracks.
* @returns {(Track|undefined)}
*/
export function getLocalVideoTrack(tracks) {
return getLocalTrack(tracks, MEDIA_TYPE.VIDEO);
}
/**
* Returns track of specified media type for specified participant id.
*
* @param {Track[]} tracks - List of all tracks.
* @param {MEDIA_TYPE} mediaType - Media type.
* @param {string} participantId - Participant ID.
* @returns {(Track|undefined)}
*/
export function getTrackByMediaTypeAndParticipant(
tracks,
mediaType,
participantId) {
return tracks.find(
t => t.participantId === participantId && t.mediaType === mediaType
);
}
/**
* Returns the track if any which corresponds to a specific instance
* of JitsiLocalTrack or JitsiRemoteTrack.
*
* @param {Track[]} tracks - List of all tracks.
* @param {(JitsiLocalTrack|JitsiRemoteTrack)} jitsiTrack - JitsiTrack instance.
* @returns {(Track|undefined)}
*/
export function getTrackByJitsiTrack(tracks, jitsiTrack) {
return tracks.find(t => t.jitsiTrack === jitsiTrack);
}
/**
* Returns tracks of specified media type.
*
* @param {Track[]} tracks - List of all tracks.
* @param {MEDIA_TYPE} mediaType - Media type.
* @returns {Track[]}
*/
export function getTracksByMediaType(tracks, mediaType) {
return tracks.filter(t => t.mediaType === mediaType);
}
/**
* Checks if the first local track in the given tracks set is muted.
*
* @param {Track[]} tracks - List of all tracks.
* @param {MEDIA_TYPE} mediaType - The media type of tracks to be checked.
* @returns {boolean} True if local track is muted or false if the track is
* unmuted or if there are no local tracks of the given media type in the given
* set of tracks.
*/
export function isLocalTrackMuted(tracks, mediaType) {
const track = getLocalTrack(tracks, mediaType);
return !track || track.muted;
}
/**
* Mutes or unmutes a specific <tt>JitsiLocalTrack</tt>. If the muted state of
* the specified <tt>track</tt> is already in accord with the specified
* <tt>muted</tt> value, then does nothing.
*
* @param {JitsiLocalTrack} track - The <tt>JitsiLocalTrack</tt> to mute or
* unmute.
* @param {boolean} muted - If the specified <tt>track</tt> is to be muted, then
* <tt>true</tt>; otherwise, <tt>false</tt>.
* @returns {Promise}
*/
export function setTrackMuted(track, muted) {
muted = Boolean(muted); // eslint-disable-line no-param-reassign
if (track.isMuted() === muted) {
return Promise.resolve();
}
const f = muted ? 'mute' : 'unmute';
return track[f]().catch(error => {
// FIXME emit mute failed, so that the app can show error dialog
console.error(`set track ${f} failed`, error);
});
}