jiti-meet/react/features/notifications/middleware.js

78 lines
1.9 KiB
JavaScript

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