75 lines
2.7 KiB
TypeScript
75 lines
2.7 KiB
TypeScript
import _ from 'lodash';
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import { IStore } from '../../app/types';
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import { getCurrentConference } from '../conference/functions';
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import {
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getMultipleVideoSendingSupportFeatureFlag
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} from '../config/functions.any';
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import StateListenerRegistry from '../redux/StateListenerRegistry';
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import { createVirtualScreenshareParticipant, participantLeft } from './actions';
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import { FakeParticipant } from './types';
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StateListenerRegistry.register(
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/* selector */ state => state['features/base/tracks'],
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/* listener */(tracks, store) => _updateScreenshareParticipants(store)
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);
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/**
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* Handles creating and removing virtual screenshare participants.
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*
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* @param {*} store - The redux store.
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* @returns {void}
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*/
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function _updateScreenshareParticipants({ getState, dispatch }: IStore) {
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const state = getState();
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const conference = getCurrentConference(state);
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const tracks = state['features/base/tracks'];
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const { sortedRemoteVirtualScreenshareParticipants, localScreenShare } = state['features/base/participants'];
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const previousScreenshareSourceNames = [ ...sortedRemoteVirtualScreenshareParticipants.keys() ];
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let newLocalSceenshareSourceName;
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const currentScreenshareSourceNames = tracks.reduce((acc: string[], track) => {
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if (track.videoType === 'desktop' && !track.jitsiTrack.isMuted()) {
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const sourceName: string = track.jitsiTrack.getSourceName();
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if (track.local) {
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newLocalSceenshareSourceName = sourceName;
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} else {
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acc.push(sourceName);
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}
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}
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return acc;
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}, []);
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if (getMultipleVideoSendingSupportFeatureFlag(state)) {
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if (!localScreenShare && newLocalSceenshareSourceName) {
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dispatch(createVirtualScreenshareParticipant(newLocalSceenshareSourceName, true));
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}
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if (localScreenShare && !newLocalSceenshareSourceName) {
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dispatch(participantLeft(localScreenShare.id, conference, {
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fakeParticipant: FakeParticipant.LocalScreenShare,
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isReplaced: undefined
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}));
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}
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}
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const removedScreenshareSourceNames = _.difference(previousScreenshareSourceNames, currentScreenshareSourceNames);
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const addedScreenshareSourceNames = _.difference(currentScreenshareSourceNames, previousScreenshareSourceNames);
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if (removedScreenshareSourceNames.length) {
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removedScreenshareSourceNames.forEach(id => dispatch(participantLeft(id, conference, {
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fakeParticipant: FakeParticipant.RemoteScreenShare,
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isReplaced: undefined
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})));
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}
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if (addedScreenshareSourceNames.length) {
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addedScreenshareSourceNames.forEach(id => dispatch(createVirtualScreenshareParticipant(id, false)));
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}
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}
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