598 lines
16 KiB
JavaScript
598 lines
16 KiB
JavaScript
// @flow
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import * as JitsiMeetConferenceEvents from '../../ConferenceEvents';
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import {
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createApiEvent,
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sendAnalytics
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} from '../../react/features/analytics';
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import { parseJWTFromURLParams } from '../../react/features/base/jwt';
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import { invite } from '../../react/features/invite';
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import { getJitsiMeetTransport } from '../transport';
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import { API_ID } from './constants';
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const logger = require('jitsi-meet-logger').getLogger(__filename);
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declare var APP: Object;
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/**
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* List of the available commands.
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*/
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let commands = {};
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/**
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* The state of screen sharing(started/stopped) before the screen sharing is
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* enabled and initialized.
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* NOTE: This flag help us to cache the state and use it if toggle-share-screen
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* was received before the initialization.
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*/
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let initialScreenSharingState = false;
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/**
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* The transport instance used for communication with external apps.
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*
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* @type {Transport}
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*/
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const transport = getJitsiMeetTransport();
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/**
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* The current audio availability.
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*
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* @type {boolean}
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*/
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let audioAvailable = true;
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/**
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* The current video availability.
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*
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* @type {boolean}
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*/
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let videoAvailable = true;
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/**
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* Initializes supported commands.
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*
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* @returns {void}
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*/
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function initCommands() {
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commands = {
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'display-name': displayName => {
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sendAnalytics(createApiEvent('display.name.changed'));
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APP.conference.changeLocalDisplayName(displayName);
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},
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'proxy-connection-event': event => {
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APP.conference.onProxyConnectionEvent(event);
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},
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'subject': subject => {
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sendAnalytics(createApiEvent('subject.changed'));
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APP.conference.setSubject(subject);
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},
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'submit-feedback': feedback => {
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sendAnalytics(createApiEvent('submit.feedback'));
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APP.conference.submitFeedback(feedback.score, feedback.message);
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},
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'toggle-audio': () => {
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sendAnalytics(createApiEvent('toggle-audio'));
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logger.log('Audio toggle: API command received');
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APP.conference.toggleAudioMuted(false /* no UI */);
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},
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'toggle-video': () => {
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sendAnalytics(createApiEvent('toggle-video'));
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logger.log('Video toggle: API command received');
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APP.conference.toggleVideoMuted(false /* no UI */);
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},
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'toggle-film-strip': () => {
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sendAnalytics(createApiEvent('film.strip.toggled'));
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APP.UI.toggleFilmstrip();
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},
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'toggle-chat': () => {
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sendAnalytics(createApiEvent('chat.toggled'));
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APP.UI.toggleChat();
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},
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'toggle-share-screen': () => {
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sendAnalytics(createApiEvent('screen.sharing.toggled'));
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toggleScreenSharing();
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},
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'video-hangup': () => {
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sendAnalytics(createApiEvent('video.hangup'));
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APP.conference.hangup(true);
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},
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'email': email => {
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sendAnalytics(createApiEvent('email.changed'));
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APP.conference.changeLocalEmail(email);
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},
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'avatar-url': avatarUrl => {
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sendAnalytics(createApiEvent('avatar.url.changed'));
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APP.conference.changeLocalAvatarUrl(avatarUrl);
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}
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};
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transport.on('event', ({ data, name }) => {
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if (name && commands[name]) {
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commands[name](...data);
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return true;
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}
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return false;
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});
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transport.on('request', (request, callback) => {
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const { name } = request;
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switch (name) {
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case 'invite': {
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const { invitees } = request;
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if (!Array.isArray(invitees) || invitees.length === 0) {
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callback({
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error: new Error('Unexpected format of invitees')
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});
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break;
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}
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// The store should be already available because API.init is called
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// on appWillMount action.
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APP.store.dispatch(
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invite(invitees, true))
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.then(failedInvitees => {
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let error;
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let result;
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if (failedInvitees.length) {
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error = new Error('One or more invites failed!');
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} else {
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result = true;
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}
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callback({
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error,
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result
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});
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});
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break;
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}
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case 'is-audio-muted':
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callback(APP.conference.isLocalAudioMuted());
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break;
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case 'is-video-muted':
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callback(APP.conference.isLocalVideoMuted());
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break;
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case 'is-audio-available':
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callback(audioAvailable);
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break;
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case 'is-video-available':
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callback(videoAvailable);
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break;
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default:
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return false;
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}
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return true;
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});
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}
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/**
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* Listens for desktop/screen sharing enabled events and toggles the screen
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* sharing if needed.
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*
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* @param {boolean} enabled - Current screen sharing enabled status.
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* @returns {void}
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*/
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function onDesktopSharingEnabledChanged(enabled = false) {
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if (enabled && initialScreenSharingState) {
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toggleScreenSharing();
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}
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}
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/**
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* Check whether the API should be enabled or not.
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*
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* @returns {boolean}
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*/
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function shouldBeEnabled() {
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return (
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typeof API_ID === 'number'
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// XXX Enable the API when a JSON Web Token (JWT) is specified in
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// the location/URL because then it is very likely that the Jitsi
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// Meet (Web) app is being used by an external/wrapping (Web) app
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// and, consequently, the latter will need to communicate with the
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// former. (The described logic is merely a heuristic though.)
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|| parseJWTFromURLParams());
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}
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/**
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* Executes on toggle-share-screen command.
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*
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* @returns {void}
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*/
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function toggleScreenSharing() {
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if (APP.conference.isDesktopSharingEnabled) {
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// eslint-disable-next-line no-empty-function
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APP.conference.toggleScreenSharing().catch(() => {});
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} else {
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initialScreenSharingState = !initialScreenSharingState;
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}
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}
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/**
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* Implements API class that communicates with external API class and provides
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* interface to access Jitsi Meet features by external applications that embed
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* Jitsi Meet.
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*/
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class API {
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_enabled: boolean;
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/**
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* Initializes the API. Setups message event listeners that will receive
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* information from external applications that embed Jitsi Meet. It also
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* sends a message to the external application that API is initialized.
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*
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* @param {Object} options - Optional parameters.
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* @returns {void}
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*/
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init() {
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if (!shouldBeEnabled()) {
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return;
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}
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/**
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* Current status (enabled/disabled) of API.
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*
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* @private
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* @type {boolean}
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*/
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this._enabled = true;
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APP.conference.addListener(
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JitsiMeetConferenceEvents.DESKTOP_SHARING_ENABLED_CHANGED,
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onDesktopSharingEnabledChanged);
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initCommands();
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}
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/**
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* Notify external application (if API is enabled) that the large video
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* visibility changed.
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*
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* @param {boolean} isHidden - True if the large video is hidden and false
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* otherwise.
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* @returns {void}
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*/
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notifyLargeVideoVisibilityChanged(isHidden: boolean) {
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this._sendEvent({
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name: 'large-video-visibility-changed',
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isVisible: !isHidden
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});
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}
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/**
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* Notifies the external application (spot) that the local jitsi-participant
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* has a status update.
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*
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* @param {Object} event - The message to pass onto spot.
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* @returns {void}
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*/
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sendProxyConnectionEvent(event: Object) {
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this._sendEvent({
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name: 'proxy-connection-event',
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...event
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});
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}
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/**
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* Sends event to the external application.
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*
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* @param {Object} event - The event to be sent.
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* @returns {void}
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*/
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_sendEvent(event: Object = {}) {
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if (this._enabled) {
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transport.sendEvent(event);
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}
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}
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/**
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* Notify external application (if API is enabled) that message was sent.
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*
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* @param {string} message - Message body.
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* @returns {void}
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*/
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notifySendingChatMessage(message: string) {
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this._sendEvent({
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name: 'outgoing-message',
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message
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});
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}
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/**
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* Notify external application (if API is enabled) that message was
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* received.
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*
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* @param {Object} options - Object with the message properties.
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* @returns {void}
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*/
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notifyReceivedChatMessage(
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{ body, id, nick, ts }: {
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body: *, id: string, nick: string, ts: *
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} = {}) {
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if (APP.conference.isLocalId(id)) {
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return;
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}
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this._sendEvent({
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name: 'incoming-message',
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from: id,
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message: body,
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nick,
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stamp: ts
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});
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}
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/**
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* Notify external application (if API is enabled) that user joined the
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* conference.
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*
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* @param {string} id - User id.
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* @param {Object} props - The display name of the user.
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* @returns {void}
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*/
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notifyUserJoined(id: string, props: Object) {
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this._sendEvent({
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name: 'participant-joined',
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id,
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...props
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});
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}
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/**
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* Notify external application (if API is enabled) that user left the
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* conference.
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*
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* @param {string} id - User id.
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* @returns {void}
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*/
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notifyUserLeft(id: string) {
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this._sendEvent({
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name: 'participant-left',
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id
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});
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}
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/**
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* Notify external application (if API is enabled) that user changed their
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* avatar.
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*
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* @param {string} id - User id.
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* @param {string} avatarURL - The new avatar URL of the participant.
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* @returns {void}
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*/
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notifyAvatarChanged(id: string, avatarURL: string) {
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this._sendEvent({
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name: 'avatar-changed',
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avatarURL,
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id
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});
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}
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/**
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* Notify external application (if API is enabled) that user changed their
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* nickname.
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*
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* @param {string} id - User id.
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* @param {string} displayname - User nickname.
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* @param {string} formattedDisplayName - The display name shown in Jitsi
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* meet's UI for the user.
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* @returns {void}
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*/
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notifyDisplayNameChanged(
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id: string,
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{ displayName, formattedDisplayName }: Object) {
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this._sendEvent({
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name: 'display-name-change',
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displayname: displayName,
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formattedDisplayName,
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id
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});
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}
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/**
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* Notify external application (if API is enabled) that user changed their
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* email.
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*
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* @param {string} id - User id.
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* @param {string} email - The new email of the participant.
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* @returns {void}
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*/
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notifyEmailChanged(
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id: string,
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{ email }: Object) {
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this._sendEvent({
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name: 'email-change',
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email,
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id
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});
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}
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/**
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* Notify external application (if API is enabled) that the conference has
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* been joined.
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*
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* @param {string} roomName - The room name.
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* @param {string} id - The id of the local user.
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* @param {Object} props - The display name and avatar URL of the local
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* user.
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* @returns {void}
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*/
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notifyConferenceJoined(roomName: string, id: string, props: Object) {
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this._sendEvent({
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name: 'video-conference-joined',
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roomName,
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id,
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...props
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});
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}
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/**
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* Notify external application (if API is enabled) that user changed their
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* nickname.
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*
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* @param {string} roomName - User id.
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* @returns {void}
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*/
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notifyConferenceLeft(roomName: string) {
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this._sendEvent({
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name: 'video-conference-left',
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roomName
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});
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}
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/**
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* Notify external application (if API is enabled) that we are ready to be
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* closed.
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*
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* @returns {void}
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*/
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notifyReadyToClose() {
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this._sendEvent({ name: 'video-ready-to-close' });
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}
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/**
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* Notify external application (if API is enabled) for audio muted status
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* changed.
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*
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* @param {boolean} muted - The new muted status.
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* @returns {void}
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*/
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notifyAudioMutedStatusChanged(muted: boolean) {
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this._sendEvent({
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name: 'audio-mute-status-changed',
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muted
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});
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}
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/**
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* Notify external application (if API is enabled) for video muted status
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* changed.
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*
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* @param {boolean} muted - The new muted status.
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* @returns {void}
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*/
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notifyVideoMutedStatusChanged(muted: boolean) {
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this._sendEvent({
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name: 'video-mute-status-changed',
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muted
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});
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}
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/**
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* Notify external application (if API is enabled) for audio availability
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* changed.
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*
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* @param {boolean} available - True if available and false otherwise.
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* @returns {void}
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*/
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notifyAudioAvailabilityChanged(available: boolean) {
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audioAvailable = available;
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this._sendEvent({
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name: 'audio-availability-changed',
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available
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});
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}
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/**
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* Notify external application (if API is enabled) for video available
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* status changed.
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*
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* @param {boolean} available - True if available and false otherwise.
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* @returns {void}
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*/
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notifyVideoAvailabilityChanged(available: boolean) {
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videoAvailable = available;
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this._sendEvent({
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name: 'video-availability-changed',
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available
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});
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}
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/**
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* Notify external application (if API is enabled) that the on stage
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* participant has changed.
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*
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* @param {string} id - User id of the new on stage participant.
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* @returns {void}
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*/
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notifyOnStageParticipantChanged(id: string) {
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this._sendEvent({
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name: 'on-stage-participant-changed',
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id
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});
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}
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/**
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* Notify external application (if API is enabled) that conference feedback
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* has been submitted. Intended to be used in conjunction with the
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* submit-feedback command to get notified if feedback was submitted.
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*
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* @returns {void}
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*/
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notifyFeedbackSubmitted() {
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this._sendEvent({ name: 'feedback-submitted' });
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}
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/**
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* Notify external application (if API is enabled) that the feedback prompt
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* has been displayed.
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*
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* @returns {void}
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*/
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notifyFeedbackPromptDisplayed() {
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this._sendEvent({ name: 'feedback-prompt-displayed' });
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}
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/**
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* Notify external application (if API is enabled) that the screen sharing
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* has been turned on/off.
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*
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* @param {boolean} on - True if screen sharing is enabled.
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* @returns {void}
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*/
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notifyScreenSharingStatusChanged(on: boolean) {
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this._sendEvent({
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name: 'screen-sharing-status-changed',
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on
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});
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}
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/**
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* Notify external application (if API is enabled) that the conference
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* changed their subject.
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*
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* @param {string} subject - Conference subject.
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* @returns {void}
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*/
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notifySubjectChanged(subject: string) {
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this._sendEvent({
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name: 'subject-change',
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subject
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});
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}
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/**
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* Disposes the allocated resources.
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*
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* @returns {void}
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*/
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dispose() {
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if (this._enabled) {
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this._enabled = false;
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APP.conference.removeListener(
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JitsiMeetConferenceEvents.DESKTOP_SHARING_ENABLED_CHANGED,
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onDesktopSharingEnabledChanged);
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}
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}
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}
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export default new API();
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