jitsi_app_c0/react/features/filmstrip/subscriber.any.js

// @flow

import { StateListenerRegistry } from '../base/redux';

import { updateRemoteParticipants } from './functions';

/**
 * Listens for changes to the screensharing status of the remote participants to recompute the reordered list of the
 * remote endpoints.
 */
StateListenerRegistry.register(
    /* selector */ state => state['features/video-layout'].remoteScreenShares,
    /* listener */ (remoteScreenShares, store) => updateRemoteParticipants(store));

/**
 * Listens for changes to the dominant speaker to recompute the reordered list of the remote endpoints.
 */
StateListenerRegistry.register(
    /* selector */ state => state['features/base/participants'].dominantSpeaker,
    /* listener */ (dominantSpeaker, store) => updateRemoteParticipants(store));