2020-03-18 22:47:56 +01:00
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/*
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Copyright 2020 New Vector Ltd.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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2021-06-30 14:28:31 +02:00
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import { KJUR } from 'jsrsasign';
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2020-09-05 05:55:50 +02:00
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import {
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2020-09-24 21:25:59 +02:00
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IOpenIDCredentials,
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2020-09-05 05:55:50 +02:00
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IWidgetApiRequest,
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VideoConferenceCapabilities,
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2020-10-01 04:09:42 +02:00
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WidgetApi,
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2020-09-05 05:55:50 +02:00
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} from "matrix-widget-api";
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2020-10-01 04:09:42 +02:00
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import { ElementWidgetActions } from "matrix-react-sdk/src/stores/widgets/ElementWidgetActions";
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2021-10-15 16:56:22 +02:00
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import { logger } from "matrix-js-sdk/src/logger";
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2022-03-18 17:12:44 +01:00
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import { IConfigOptions } from "matrix-react-sdk/src/IConfigOptions";
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import { SnakedObject } from "matrix-react-sdk/src/utils/SnakedObject";
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2021-10-15 16:56:22 +02:00
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2022-02-28 19:02:03 +01:00
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import { getVectorConfig } from "../getconfig";
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2021-12-09 23:57:46 +01:00
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// We have to trick webpack into loading our CSS for us.
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require("./index.scss");
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2020-09-08 10:44:11 +02:00
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const JITSI_OPENIDTOKEN_JWT_AUTH = 'openidtoken-jwt';
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2020-03-18 22:47:56 +01:00
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// Dev note: we use raw JS without many dependencies to reduce bundle size.
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// We do not need all of React to render a Jitsi conference.
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2020-07-21 12:30:28 +02:00
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declare let JitsiMeetExternalAPI: any;
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2020-03-18 22:47:56 +01:00
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let inConference = false;
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// Jitsi params
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let jitsiDomain: string;
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let conferenceId: string;
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let displayName: string;
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let avatarUrl: string;
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let userId: string;
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2020-09-04 12:14:52 +02:00
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let jitsiAuth: string;
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let roomId: string;
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let openIdToken: IOpenIDCredentials;
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let roomName: string;
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let startAudioOnly: boolean;
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let isVideoChannel: boolean;
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2020-03-18 22:47:56 +01:00
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let widgetApi: WidgetApi;
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2020-09-16 22:39:40 +02:00
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let meetApi: any; // JitsiMeetExternalAPI
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let skipOurWelcomeScreen = false;
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2020-03-18 22:47:56 +01:00
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2022-03-22 23:14:27 +01:00
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const ack = (ev: CustomEvent<IWidgetApiRequest>) => widgetApi.transport.reply(ev.detail, {});
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2020-07-21 12:30:28 +02:00
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(async function() {
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2020-03-18 22:47:56 +01:00
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try {
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// Queue a config.json lookup asap, so we can use it later on. We want this to be concurrent with
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// other setup work and therefore do not block.
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const configPromise = getVectorConfig('..');
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2021-07-16 20:37:48 +02:00
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// The widget's options are encoded into the fragment to avoid leaking info to the server.
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const widgetQuery = new URLSearchParams(window.location.hash.substring(1));
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// The widget spec on the other hand requires the widgetId and parentUrl to show up in the regular query string.
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const realQuery = new URLSearchParams(window.location.search.substring(1));
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const qsParam = (name: string, optional = false): string => {
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const vals = widgetQuery.has(name) ? widgetQuery.getAll(name) : realQuery.getAll(name);
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if (!optional && vals.length !== 1) {
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throw new Error(`Expected singular ${name} in query string`);
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}
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return <string>vals[0];
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2020-03-18 22:47:56 +01:00
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};
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2020-04-01 12:08:53 +02:00
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// If we have these params, expect a widget API to be available (ie. to be in an iframe
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// inside a matrix client). Otherwise, assume we're on our own, eg. have been popped
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// out into a browser.
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const parentUrl = qsParam('parentUrl', true);
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const widgetId = qsParam('widgetId', true);
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2020-10-19 19:51:16 +02:00
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const theme = qsParam('theme', true);
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if (theme) {
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document.body.classList.add(`theme-${theme.replace(" ", "_")}`);
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}
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2020-04-01 12:08:53 +02:00
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2020-07-13 18:32:17 +02:00
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// Set this up as early as possible because Element will be hitting it almost immediately.
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2020-09-05 05:55:50 +02:00
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let readyPromise: Promise<[void, void]>;
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if (parentUrl && widgetId) {
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const parentOrigin = new URL(qsParam('parentUrl')).origin;
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widgetApi = new WidgetApi(qsParam("widgetId"), parentOrigin);
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widgetApi.requestCapabilities(VideoConferenceCapabilities);
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readyPromise = Promise.all([
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new Promise<void>(resolve => {
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widgetApi.once(`action:${ElementWidgetActions.ClientReady}`, ev => {
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ev.preventDefault();
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widgetApi.transport.reply(ev.detail, {});
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resolve();
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});
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}),
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new Promise<void>(resolve => {
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widgetApi.once("ready", () => resolve());
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}),
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]);
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widgetApi.start();
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} else {
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logger.warn("No parent URL or no widget ID - assuming no widget API is available");
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}
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2020-03-24 16:14:59 +01:00
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2020-03-18 22:47:56 +01:00
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// Populate the Jitsi params now
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jitsiDomain = qsParam('conferenceDomain');
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conferenceId = qsParam('conferenceId');
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displayName = qsParam('displayName', true);
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avatarUrl = qsParam('avatarUrl', true); // http not mxc
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userId = qsParam('userId');
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2020-09-04 12:14:52 +02:00
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jitsiAuth = qsParam('auth', true);
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roomId = qsParam('roomId', true);
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roomName = qsParam('roomName', true);
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startAudioOnly = qsParam('isAudioOnly', true) === "true";
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isVideoChannel = qsParam('isVideoChannel', true) === "true";
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2020-03-18 22:47:56 +01:00
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2022-02-28 19:02:03 +01:00
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// We've reached the point where we have to wait for the config, so do that then parse it.
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2022-03-18 17:12:44 +01:00
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const instanceConfig = new SnakedObject<IConfigOptions>((await configPromise) ?? <IConfigOptions>{});
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const jitsiConfig = instanceConfig.get("jitsi_widget") ?? {};
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skipOurWelcomeScreen = (new SnakedObject<IConfigOptions["jitsi_widget"]>(jitsiConfig))
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.get("skip_built_in_welcome_screen") || isVideoChannel;
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// If we're meant to skip our screen, skip to the part where we show Jitsi instead of us.
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// We don't set up the call yet though as this might lead to failure without the widget API.
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if (skipOurWelcomeScreen) {
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toggleConferenceVisibility(true);
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}
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2020-04-01 12:08:53 +02:00
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if (widgetApi) {
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2020-09-22 17:01:55 +02:00
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await readyPromise;
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2020-03-24 16:54:15 +01:00
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2020-09-07 18:25:44 +02:00
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// See https://github.com/matrix-org/prosody-mod-auth-matrix-user-verification
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2020-09-08 10:44:11 +02:00
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if (jitsiAuth === JITSI_OPENIDTOKEN_JWT_AUTH) {
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2020-09-08 11:50:53 +02:00
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// Request credentials, give callback to continue when received
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openIdToken = await widgetApi.requestOpenIDConnectToken();
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logger.log("Got OpenID Connect token");
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}
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2020-09-16 22:39:40 +02:00
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2022-03-22 23:14:27 +01:00
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widgetApi.on(`action:${ElementWidgetActions.JoinCall}`,
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(ev: CustomEvent<IWidgetApiRequest>) => {
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joinConference();
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ack(ev);
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},
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);
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2020-10-19 17:43:55 +02:00
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widgetApi.on(`action:${ElementWidgetActions.HangupCall}`,
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(ev: CustomEvent<IWidgetApiRequest>) => {
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meetApi?.executeCommand('hangup');
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ack(ev);
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},
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);
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widgetApi.on(`action:${ElementWidgetActions.MuteAudio}`,
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async (ev: CustomEvent<IWidgetApiRequest>) => {
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ack(ev);
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if (meetApi && !await meetApi.isAudioMuted()) {
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meetApi.executeCommand('toggleAudio');
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}
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},
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);
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widgetApi.on(`action:${ElementWidgetActions.UnmuteAudio}`,
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async (ev: CustomEvent<IWidgetApiRequest>) => {
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ack(ev);
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if (meetApi && await meetApi.isAudioMuted()) {
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meetApi.executeCommand('toggleAudio');
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}
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},
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);
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widgetApi.on(`action:${ElementWidgetActions.MuteVideo}`,
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async (ev: CustomEvent<IWidgetApiRequest>) => {
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ack(ev);
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if (meetApi && !await meetApi.isVideoMuted()) {
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meetApi.executeCommand('toggleVideo');
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}
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},
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);
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widgetApi.on(`action:${ElementWidgetActions.UnmuteVideo}`,
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async (ev: CustomEvent<IWidgetApiRequest>) => {
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ack(ev);
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if (meetApi && await meetApi.isVideoMuted()) {
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meetApi.executeCommand('toggleVideo');
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}
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2020-10-01 04:51:31 +02:00
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},
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);
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2021-03-04 19:00:55 +01:00
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widgetApi.on(`action:${ElementWidgetActions.StartLiveStream}`,
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(ev: CustomEvent<IWidgetApiRequest>) => {
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if (meetApi) {
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meetApi.executeCommand('startRecording', {
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mode: 'stream',
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// this looks like it should be rtmpStreamKey but we may be on too old
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// a version of jitsi meet
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//rtmpStreamKey: ev.detail.data.rtmpStreamKey,
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youtubeStreamKey: ev.detail.data.rtmpStreamKey,
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});
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ack(ev);
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2021-03-04 19:00:55 +01:00
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} else {
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widgetApi.transport.reply(ev.detail, { error: { message: "Conference not joined" } });
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2021-03-04 19:00:55 +01:00
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}
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},
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);
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2020-09-07 17:10:19 +02:00
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}
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2020-10-01 17:59:13 +02:00
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2022-02-28 19:02:03 +01:00
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// Now that everything should be set up, skip to the Jitsi splash screen if needed
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if (skipOurWelcomeScreen) {
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skipToJitsiSplashScreen();
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}
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2020-10-01 17:59:13 +02:00
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enableJoinButton(); // always enable the button
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2020-03-18 22:47:56 +01:00
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} catch (e) {
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2021-10-15 16:56:22 +02:00
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logger.error("Error setting up Jitsi widget", e);
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2020-09-07 18:51:16 +02:00
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document.getElementById("widgetActionContainer").innerText = "Failed to load Jitsi widget";
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2020-03-18 22:47:56 +01:00
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}
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})();
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2020-09-07 17:10:19 +02:00
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function enableJoinButton() {
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document.getElementById("joinButton").onclick = () => joinConference();
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}
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2020-03-18 22:47:56 +01:00
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function switchVisibleContainers() {
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inConference = !inConference;
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2022-02-28 19:02:03 +01:00
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// Our welcome screen is managed by other code, so just don't switch to it ever
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// if we're not supposed to.
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if (!skipOurWelcomeScreen) {
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toggleConferenceVisibility(inConference);
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}
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}
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function toggleConferenceVisibility(inConference: boolean) {
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2020-03-18 22:47:56 +01:00
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document.getElementById("jitsiContainer").style.visibility = inConference ? 'unset' : 'hidden';
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document.getElementById("joinButtonContainer").style.visibility = inConference ? 'hidden' : 'unset';
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}
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2022-02-28 19:02:03 +01:00
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function skipToJitsiSplashScreen() {
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// really just a function alias for self-documenting code
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joinConference();
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}
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2020-09-04 12:14:52 +02:00
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/**
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* Create a JWT token fot jitsi openidtoken-jwt auth
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*
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2020-09-07 18:25:44 +02:00
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* See https://github.com/matrix-org/prosody-mod-auth-matrix-user-verification
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2020-09-04 12:14:52 +02:00
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*/
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function createJWTToken() {
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// Header
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2021-06-30 14:28:31 +02:00
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const header = { alg: 'HS256', typ: 'JWT' };
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2020-09-04 12:14:52 +02:00
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// Payload
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const payload = {
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2020-09-07 18:23:36 +02:00
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// As per Jitsi token auth, `iss` needs to be set to something agreed between
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// JWT generating side and Prosody config. Since we have no configuration for
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// the widgets, we can't set one anywhere. Using the Jitsi domain here probably makes sense.
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iss: jitsiDomain,
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2020-09-04 12:14:52 +02:00
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sub: jitsiDomain,
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aud: `https://${jitsiDomain}`,
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room: "*",
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context: {
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matrix: {
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2020-09-24 21:25:59 +02:00
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token: openIdToken.access_token,
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room_id: roomId,
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2021-01-19 18:23:23 +01:00
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server_name: openIdToken.matrix_server_name,
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2020-09-04 12:14:52 +02:00
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},
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user: {
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avatar: avatarUrl,
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name: displayName,
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},
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},
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};
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// Sign JWT
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// The secret string here is irrelevant, we're only using the JWT
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// to transport data to Prosody in the Jitsi stack.
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return KJUR.jws.JWS.sign(
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2020-09-07 17:10:19 +02:00
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'HS256',
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2020-09-04 12:14:52 +02:00
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JSON.stringify(header),
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JSON.stringify(payload),
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2020-09-07 17:10:19 +02:00
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'notused',
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2020-09-04 12:14:52 +02:00
|
|
|
);
|
|
|
|
}
|
|
|
|
|
2020-03-18 22:47:56 +01:00
|
|
|
function joinConference() { // event handler bound in HTML
|
2020-09-08 11:50:53 +02:00
|
|
|
let jwt;
|
|
|
|
if (jitsiAuth === JITSI_OPENIDTOKEN_JWT_AUTH) {
|
2020-10-01 04:51:31 +02:00
|
|
|
if (!openIdToken?.access_token) { // eslint-disable-line camelcase
|
2020-09-08 11:50:53 +02:00
|
|
|
// We've failing to get a token, don't try to init conference
|
2021-10-15 17:00:43 +02:00
|
|
|
logger.warn('Expected to have an OpenID credential, cannot initialize widget.');
|
2020-09-08 11:50:53 +02:00
|
|
|
document.getElementById("widgetActionContainer").innerText = "Failed to load Jitsi widget";
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
jwt = createJWTToken();
|
|
|
|
}
|
|
|
|
|
2020-03-18 22:47:56 +01:00
|
|
|
switchVisibleContainers();
|
|
|
|
|
2021-10-15 17:00:43 +02:00
|
|
|
logger.warn(
|
2020-03-31 20:19:17 +02:00
|
|
|
"[Jitsi Widget] The next few errors about failing to parse URL parameters are fine if " +
|
|
|
|
"they mention 'external_api' or 'jitsi' in the stack. They're just Jitsi Meet trying to parse " +
|
|
|
|
"our fragment values and not recognizing the options.",
|
|
|
|
);
|
2022-04-01 17:28:47 +02:00
|
|
|
|
2020-09-04 12:14:52 +02:00
|
|
|
const options = {
|
2020-03-18 22:47:56 +01:00
|
|
|
width: "100%",
|
|
|
|
height: "100%",
|
|
|
|
parentNode: document.querySelector("#jitsiContainer"),
|
|
|
|
roomName: conferenceId,
|
|
|
|
interfaceConfigOverwrite: {
|
|
|
|
SHOW_JITSI_WATERMARK: false,
|
|
|
|
SHOW_WATERMARK_FOR_GUESTS: false,
|
|
|
|
MAIN_TOOLBAR_BUTTONS: [],
|
|
|
|
VIDEO_LAYOUT_FIT: "height",
|
|
|
|
},
|
2021-12-17 09:54:57 +01:00
|
|
|
configOverwrite: {
|
|
|
|
startAudioOnly,
|
2022-04-01 17:28:47 +02:00
|
|
|
} as any,
|
2020-09-08 11:50:53 +02:00
|
|
|
jwt: jwt,
|
2020-09-04 12:14:52 +02:00
|
|
|
};
|
2020-09-08 11:50:53 +02:00
|
|
|
|
2022-04-01 17:28:47 +02:00
|
|
|
// Video channel widgets need some more tailored config options
|
|
|
|
if (isVideoChannel) {
|
|
|
|
// Ensure that we start on Jitsi Meet's native prejoin screen, for
|
|
|
|
// deployments that skip straight to the conference by default
|
|
|
|
options.configOverwrite.prejoinConfig = { enabled: true };
|
|
|
|
// Use a simplified set of toolbar buttons
|
|
|
|
options.configOverwrite.toolbarButtons = [
|
|
|
|
"microphone", "camera", "desktop", "tileview", "hangup",
|
|
|
|
];
|
|
|
|
// Hide all top bar elements
|
|
|
|
options.configOverwrite.conferenceInfo = { autoHide: [] };
|
|
|
|
}
|
|
|
|
|
2020-09-16 22:39:40 +02:00
|
|
|
meetApi = new JitsiMeetExternalAPI(jitsiDomain, options);
|
2020-03-18 22:47:56 +01:00
|
|
|
if (displayName) meetApi.executeCommand("displayName", displayName);
|
|
|
|
if (avatarUrl) meetApi.executeCommand("avatarUrl", avatarUrl);
|
|
|
|
if (userId) meetApi.executeCommand("email", userId);
|
2021-02-15 16:54:37 +01:00
|
|
|
if (roomName) meetApi.executeCommand("subject", roomName);
|
2020-03-18 22:47:56 +01:00
|
|
|
|
2022-01-20 09:51:14 +01:00
|
|
|
// fires once when user joins the conference
|
|
|
|
// (regardless of video on or off)
|
|
|
|
meetApi.on("videoConferenceJoined", () => {
|
|
|
|
if (widgetApi) {
|
|
|
|
// ignored promise because we don't care if it works
|
|
|
|
// noinspection JSIgnoredPromiseFromCall
|
|
|
|
widgetApi.setAlwaysOnScreen(true);
|
2022-03-22 23:14:27 +01:00
|
|
|
widgetApi.transport.send(ElementWidgetActions.JoinCall, {});
|
2022-01-20 09:51:14 +01:00
|
|
|
}
|
2022-04-01 17:28:47 +02:00
|
|
|
|
|
|
|
// Video rooms should start in tile mode
|
|
|
|
if (isVideoChannel) meetApi.executeCommand("setTileView", true);
|
2022-01-20 09:51:14 +01:00
|
|
|
});
|
|
|
|
|
2020-03-18 22:47:56 +01:00
|
|
|
meetApi.on("readyToClose", () => {
|
|
|
|
switchVisibleContainers();
|
|
|
|
|
2020-09-08 11:52:17 +02:00
|
|
|
if (widgetApi) {
|
2022-03-22 23:14:27 +01:00
|
|
|
// We send the hangup event before setAlwaysOnScreen, because the latter
|
|
|
|
// can cause the receiving side to instantly stop listening.
|
2020-09-08 11:52:17 +02:00
|
|
|
// ignored promise because we don't care if it works
|
|
|
|
// noinspection JSIgnoredPromiseFromCall
|
2022-04-04 13:32:12 +02:00
|
|
|
widgetApi.transport.send(ElementWidgetActions.HangupCall, {}).finally(() =>
|
2022-03-22 23:14:27 +01:00
|
|
|
widgetApi.setAlwaysOnScreen(false),
|
|
|
|
);
|
2020-09-08 11:52:17 +02:00
|
|
|
}
|
2020-03-18 22:47:56 +01:00
|
|
|
|
|
|
|
document.getElementById("jitsiContainer").innerHTML = "";
|
2020-09-16 22:39:40 +02:00
|
|
|
meetApi = null;
|
2022-02-28 19:02:03 +01:00
|
|
|
|
|
|
|
if (skipOurWelcomeScreen) {
|
|
|
|
skipToJitsiSplashScreen();
|
|
|
|
}
|
2020-03-18 22:47:56 +01:00
|
|
|
});
|
2022-03-22 23:14:27 +01:00
|
|
|
|
|
|
|
meetApi.on("audioMuteStatusChanged", ({ muted }) => {
|
|
|
|
const action = muted ? ElementWidgetActions.MuteAudio : ElementWidgetActions.UnmuteAudio;
|
|
|
|
widgetApi.transport.send(action, {});
|
|
|
|
});
|
|
|
|
|
|
|
|
meetApi.on("videoMuteStatusChanged", ({ muted }) => {
|
|
|
|
const action = muted ? ElementWidgetActions.MuteVideo : ElementWidgetActions.UnmuteVideo;
|
|
|
|
widgetApi.transport.send(action, {});
|
|
|
|
});
|
|
|
|
|
|
|
|
["videoConferenceJoined", "participantJoined", "participantLeft"].forEach(event => {
|
|
|
|
meetApi.on(event, () => {
|
|
|
|
widgetApi?.transport.send(ElementWidgetActions.CallParticipants, {
|
|
|
|
participants: meetApi.getParticipantsInfo(),
|
|
|
|
});
|
|
|
|
});
|
|
|
|
});
|
2020-03-18 22:47:56 +01:00
|
|
|
}
|