jiti-meet/react/features/mobile/watchos/middleware.js

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// @flow
import { Platform } from 'react-native';
import { updateApplicationContext, watchEvents } from 'react-native-watch-connectivity';
import { appNavigate } from '../../app/actions';
import { APP_WILL_MOUNT } from '../../base/app';
import { CONFERENCE_JOINED } from '../../base/conference';
import { getCurrentConferenceUrl } from '../../base/connection';
import { setAudioMuted } from '../../base/media';
import {
MiddlewareRegistry,
StateListenerRegistry,
toState
} from '../../base/redux';
import { setConferenceTimestamp, setSessionId, setWatchReachable } from './actions';
import { CMD_HANG_UP, CMD_JOIN_CONFERENCE, CMD_SET_MUTED, MAX_RECENT_URLS } from './constants';
import logger from './logger';
const watchOSEnabled = Platform.OS === 'ios';
// Handles the recent URLs state sent to the watch
watchOSEnabled && StateListenerRegistry.register(
/* selector */ state => state['features/recent-list'],
/* listener */ (recentListState, { getState }) => {
_updateApplicationContext(getState);
});
// Handles the mic muted state sent to the watch
watchOSEnabled && StateListenerRegistry.register(
/* selector */ state => _isAudioMuted(state),
/* listener */ (isAudioMuted, { getState }) => {
_updateApplicationContext(getState);
});
// Handles the conference URL state sent to the watch
watchOSEnabled && StateListenerRegistry.register(
/* selector */ state => getCurrentConferenceUrl(state),
/* listener */ (currentUrl, { dispatch, getState }) => {
dispatch(setSessionId());
_updateApplicationContext(getState);
});
/**
* Middleware that captures conference actions.
*
* @param {Store} store - The redux store.
* @returns {Function}
*/
watchOSEnabled && MiddlewareRegistry.register(store => next => action => {
switch (action.type) {
case APP_WILL_MOUNT:
_appWillMount(store);
break;
case CONFERENCE_JOINED:
store.dispatch(setConferenceTimestamp(new Date().getTime()));
_updateApplicationContext(store.getState());
break;
}
return next(action);
});
/**
* Registers listeners to the react-native-watch-connectivity lib.
*
* @param {Store} store - The redux store.
* @private
* @returns {void}
*/
function _appWillMount({ dispatch, getState }) {
watchEvents.addListener('reachability', reachable => {
dispatch(setWatchReachable(reachable));
_updateApplicationContext(getState);
});
watchEvents.addListener('message', message => {
const {
command,
sessionID
} = message;
const currentSessionID = _getSessionId(getState());
if (!sessionID || sessionID !== currentSessionID) {
logger.warn(
`Ignoring outdated watch command: ${message.command}`
+ ` sessionID: ${sessionID} current session ID: ${currentSessionID}`);
return;
}
switch (command) {
case CMD_HANG_UP:
if (typeof getCurrentConferenceUrl(getState()) !== 'undefined') {
dispatch(appNavigate(undefined));
}
break;
case CMD_JOIN_CONFERENCE: {
const newConferenceURL = message.data;
const oldConferenceURL = getCurrentConferenceUrl(getState());
if (oldConferenceURL !== newConferenceURL) {
dispatch(appNavigate(newConferenceURL));
}
break;
}
case CMD_SET_MUTED:
dispatch(
setAudioMuted(
message.muted === 'true',
/* ensureTrack */ true));
break;
}
});
}
/**
* Gets the current Apple Watch session's ID. A new session is started whenever the conference URL has changed. It is
* used to filter out outdated commands which may arrive very later if the Apple Watch loses the connectivity.
*
* @param {Object|Function} stateful - Either the whole Redux state object or the Redux store's {@code getState} method.
* @returns {number}
* @private
*/
function _getSessionId(stateful) {
const state = toState(stateful);
return state['features/mobile/watchos'].sessionID;
}
/**
* Gets the list of recent URLs to be passed over to the Watch app.
*
* @param {Object|Function} stateful - Either the whole Redux state object or the Redux store's {@code getState} method.
* @returns {Array<Object>}
* @private
*/
function _getRecentUrls(stateful) {
const state = toState(stateful);
const recentURLs = state['features/recent-list'];
// Trim to MAX_RECENT_URLS and reverse the list
const reversedList = recentURLs.slice(-MAX_RECENT_URLS);
reversedList.reverse();
return reversedList;
}
/**
* Determines the audio muted state to be sent to the apple watch.
*
* @param {Object|Function} stateful - Either the whole Redux state object or the Redux store's {@code getState} method.
* @returns {boolean}
* @private
*/
function _isAudioMuted(stateful) {
const state = toState(stateful);
const { audio } = state['features/base/media'];
return audio.muted;
}
/**
* Sends the context to the watch os app. At the time of this writing it's the entire state of
* the 'features/mobile/watchos' reducer.
*
* @param {Object|Function} stateful - Either the whole Redux state object or the Redux store's {@code getState} method.
* @private
* @returns {void}
*/
function _updateApplicationContext(stateful) {
const state = toState(stateful);
const { conferenceTimestamp, sessionID, watchReachable } = state['features/mobile/watchos'];
if (!watchReachable) {
return;
}
try {
updateApplicationContext({
conferenceTimestamp,
conferenceURL: getCurrentConferenceUrl(state),
micMuted: _isAudioMuted(state),
recentURLs: _getRecentUrls(state),
sessionID
});
} catch (error) {
logger.error('Failed to stringify or send the context', error);
}
}