82 lines
2.6 KiB
JavaScript
82 lines
2.6 KiB
JavaScript
// @flow
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import { setRemoteParticipants } from './actions';
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import { isReorderingEnabled } from './functions';
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/**
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* Computes the reorderd list of the remote participants.
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*
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* @param {*} store - The redux store.
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* @param {string} participantId - The endpoint id of the participant that joined the call.
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* @returns {void}
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* @private
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*/
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export function updateRemoteParticipants(store: Object, participantId: ?number) {
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const state = store.getState();
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let reorderedParticipants = [];
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if (!isReorderingEnabled(state)) {
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if (participantId) {
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const { remoteParticipants } = state['features/filmstrip'];
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reorderedParticipants = [ ...remoteParticipants, participantId ];
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store.dispatch(setRemoteParticipants(reorderedParticipants));
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}
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return;
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}
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const {
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fakeParticipants,
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sortedRemoteParticipants,
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sortedRemoteScreenshares,
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speakersList
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} = state['features/base/participants'];
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const remoteParticipants = new Map(sortedRemoteParticipants);
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const screenShares = new Map(sortedRemoteScreenshares);
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const sharedVideos = fakeParticipants ? Array.from(fakeParticipants.keys()) : [];
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const speakers = new Map(speakersList);
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for (const screenshare of screenShares.keys()) {
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remoteParticipants.delete(screenshare);
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speakers.delete(screenshare);
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}
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for (const sharedVideo of sharedVideos) {
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remoteParticipants.delete(sharedVideo);
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speakers.delete(sharedVideo);
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}
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for (const speaker of speakers.keys()) {
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remoteParticipants.delete(speaker);
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}
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// Always update the order of the thumnails.
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reorderedParticipants = [
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...Array.from(screenShares.keys()),
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...sharedVideos,
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...Array.from(speakers.keys()),
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...Array.from(remoteParticipants.keys())
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];
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store.dispatch(setRemoteParticipants(reorderedParticipants));
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}
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/**
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* Private helper to calculate the reordered list of remote participants when a participant leaves.
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*
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* @param {*} store - The redux store.
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* @param {string} participantId - The endpoint id of the participant leaving the call.
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* @returns {void}
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* @private
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*/
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export function updateRemoteParticipantsOnLeave(store: Object, participantId: ?string = null) {
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if (!participantId) {
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return;
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}
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const state = store.getState();
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const { remoteParticipants } = state['features/filmstrip'];
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const reorderedParticipants = new Set(remoteParticipants);
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reorderedParticipants.delete(participantId)
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&& store.dispatch(setRemoteParticipants(Array.from(reorderedParticipants)));
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}
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