97 lines
3.2 KiB
JavaScript
97 lines
3.2 KiB
JavaScript
import Screenshare from '/imports/api/screenshare';
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import KurentoBridge from '/imports/api/screenshare/client/bridge';
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import BridgeService from '/imports/api/screenshare/client/bridge/service';
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import Settings from '/imports/ui/services/settings';
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import logger from '/imports/startup/client/logger';
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import { tryGenerateIceCandidates } from '/imports/utils/safari-webrtc';
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import { stopWatching } from '/imports/ui/components/external-video-player/service';
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import Meetings from '/imports/api/meetings';
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import Auth from '/imports/ui/services/auth';
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import UserListService from '/imports/ui/components/user-list/service';
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import AudioService from '/imports/ui/components/audio/service';
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import {Meteor} from "meteor/meteor";
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// when the meeting information has been updated check to see if it was
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// screensharing. If it has changed either trigger a call to receive video
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// and display it, or end the call and hide the video
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const isVideoBroadcasting = () => {
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const screenshareEntry = Screenshare.findOne({ meetingId: Auth.meetingID },
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{ fields: { 'screenshare.stream': 1 } });
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if (!screenshareEntry) {
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return false;
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}
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return !!screenshareEntry.screenshare.stream;
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};
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// if remote screenshare has been ended disconnect and hide the video stream
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const presenterScreenshareHasEnded = () => {
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// references a function in the global namespace inside kurento-extension.js
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// that we load dynamically
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KurentoBridge.kurentoExitVideo();
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};
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const viewScreenshare = () => {
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const amIPresenter = UserListService.isUserPresenter(Auth.userID);
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if (!amIPresenter) {
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KurentoBridge.kurentoViewScreen();
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} else {
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KurentoBridge.kurentoViewLocalPreview();
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}
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};
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// if remote screenshare has been started connect and display the video stream
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const presenterScreenshareHasStarted = () => {
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// WebRTC restrictions may need a capture device permission to release
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// useful ICE candidates on recvonly/no-gUM peers
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tryGenerateIceCandidates().then(() => {
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viewScreenshare();
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}).catch((error) => {
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logger.error({
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logCode: 'screenshare_no_valid_candidate_gum_failure',
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extraInfo: {
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errorName: error.name,
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errorMessage: error.message,
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},
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}, `Forced gUM to release additional ICE candidates failed due to ${error.name}.`);
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// The fallback gUM failed. Try it anyways and hope for the best.
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viewScreenshare();
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});
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};
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const shareScreen = (onFail) => {
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// stop external video share if running
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const meeting = Meetings.findOne({ meetingId: Auth.meetingID });
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if (meeting && meeting.externalVideoUrl) {
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stopWatching();
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}
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BridgeService.getScreenStream().then((stream) => {
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KurentoBridge.kurentoShareScreen(onFail, stream);
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}).catch(onFail);
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};
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const screenShareEndAlert = () => AudioService
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.playAlertSound(`${Meteor.settings.public.app.cdn
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+ Meteor.settings.public.app.basename
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+ Meteor.settings.public.app.instanceId}`
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+ '/resources/sounds/ScreenshareOff.mp3');
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const unshareScreen = () => {
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KurentoBridge.kurentoExitScreenShare();
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screenShareEndAlert();
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};
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const dataSavingSetting = () => Settings.dataSaving.viewScreenshare;
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export {
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isVideoBroadcasting,
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presenterScreenshareHasEnded,
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presenterScreenshareHasStarted,
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shareScreen,
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screenShareEndAlert,
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unshareScreen,
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dataSavingSetting,
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};
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