jiti-meet/react/features/filmstrip/functions.any.js

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// @flow
import { getParticipantCount } from '../base/participants';
import { setRemoteParticipants } from './actions';
/**
* Computes the reorderd list of the remote participants.
*
* @param {*} store - The redux store.
* @param {string} participantId - The endpoint id of the participant that joined the call.
* @returns {void}
* @private
*/
export function updateRemoteParticipants(store: Object, participantId: ?number) {
const state = store.getState();
const { testing = {} } = state['features/base/config'];
const enableThumbnailReordering = testing.enableThumbnailReordering ?? true;
let reorderedParticipants = [];
if (!enableThumbnailReordering) {
if (participantId) {
const { remoteParticipants } = state['features/filmstrip'];
reorderedParticipants = [ ...remoteParticipants, participantId ];
store.dispatch(setRemoteParticipants(reorderedParticipants));
}
return;
}
const {
fakeParticipants,
sortedRemoteParticipants,
sortedRemoteScreenshares,
speakersList
} = state['features/base/participants'];
const remoteParticipants = new Map(sortedRemoteParticipants);
const screenShares = new Map(sortedRemoteScreenshares);
const sharedVideos = fakeParticipants ? Array.from(fakeParticipants.keys()) : [];
const speakers = new Map(speakersList);
for (const screenshare of screenShares.keys()) {
remoteParticipants.delete(screenshare);
speakers.delete(screenshare);
}
for (const sharedVideo of sharedVideos) {
remoteParticipants.delete(sharedVideo);
speakers.delete(sharedVideo);
}
for (const speaker of speakers.keys()) {
remoteParticipants.delete(speaker);
}
// Always update the order of the thumnails.
reorderedParticipants = [
...Array.from(screenShares.keys()),
...sharedVideos,
...Array.from(speakers.keys()),
...Array.from(remoteParticipants.keys())
];
store.dispatch(setRemoteParticipants(reorderedParticipants));
}
/**
* Private helper to calculate the reordered list of remote participants when a participant leaves.
*
* @param {*} store - The redux store.
* @param {string} participantId - The endpoint id of the participant leaving the call.
* @returns {void}
* @private
*/
export function updateRemoteParticipantsOnLeave(store: Object, participantId: ?string = null) {
if (!participantId) {
return;
}
const state = store.getState();
const { remoteParticipants } = state['features/filmstrip'];
const reorderedParticipants = new Set(remoteParticipants);
reorderedParticipants.delete(participantId)
&& store.dispatch(setRemoteParticipants(Array.from(reorderedParticipants)));
}
/**
* Gets the disable self view flag.
*
* @param {Object} state - Redux state.
* @returns {boolean}
*/
export function getDisableSelfView(state: Object) {
const { disableSelfView } = state['features/base/settings'];
const participantsCount = getParticipantCount(state);
return participantsCount === 1 ? false : disableSelfView;
}