78 lines
1.9 KiB
JavaScript
78 lines
1.9 KiB
JavaScript
/* @flow */
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import { getCurrentConference } from '../base/conference';
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import {
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PARTICIPANT_JOINED,
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PARTICIPANT_LEFT,
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getParticipantById,
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getParticipantDisplayName
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} from '../base/participants';
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import { MiddlewareRegistry, StateListenerRegistry } from '../base/redux';
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import {
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clearNotifications,
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showNotification,
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showParticipantJoinedNotification
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} from './actions';
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import { NOTIFICATION_TIMEOUT } from './constants';
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declare var interfaceConfig: Object;
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/**
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* Middleware that captures actions to display notifications.
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*
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* @param {Store} store - The redux store.
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* @returns {Function}
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*/
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MiddlewareRegistry.register(store => next => action => {
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switch (action.type) {
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case PARTICIPANT_JOINED: {
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const result = next(action);
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const { participant: p } = action;
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if (!p.local) {
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store.dispatch(showParticipantJoinedNotification(
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getParticipantDisplayName(store.getState, p.id)
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));
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}
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return result;
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}
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case PARTICIPANT_LEFT: {
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const participant = getParticipantById(
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store.getState(),
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action.participant.id
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);
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if (typeof interfaceConfig === 'object'
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&& participant
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&& !participant.local) {
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store.dispatch(showNotification({
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descriptionKey: 'notify.disconnected',
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titleKey: 'notify.somebody',
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title: participant.name
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},
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NOTIFICATION_TIMEOUT));
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}
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return next(action);
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}
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}
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return next(action);
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});
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/**
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* StateListenerRegistry provides a reliable way to detect the leaving of a
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* conference, where we need to clean up the notifications.
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*/
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StateListenerRegistry.register(
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/* selector */ state => getCurrentConference(state),
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/* listener */ (conference, { dispatch }) => {
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if (!conference) {
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dispatch(clearNotifications());
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}
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}
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);
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