jiti-meet/react/features/base/tracks/middleware.js

78 lines
2.0 KiB
JavaScript

import {
LIB_DISPOSED,
LIB_INITIALIZED
} from '../lib-jitsi-meet';
import {
AUDIO_MUTED_CHANGED,
CAMERA_FACING_MODE_CHANGED,
MEDIA_TYPE,
VIDEO_MUTED_CHANGED
} from '../media';
import { MiddlewareRegistry } from '../redux';
import {
createLocalTracks,
destroyLocalTracks
} from './actions';
import {
getLocalTrack,
setTrackMuted
} from './functions';
/**
* Middleware that captures LIB_INITIALIZED and LIB_DISPOSED actions
* and respectively creates/destroys local media tracks. Also listens to media-
* related actions and performs corresponding operations with tracks.
*
* @param {Store} store - Redux store.
* @returns {Function}
*/
MiddlewareRegistry.register(store => next => action => {
switch (action.type) {
case AUDIO_MUTED_CHANGED:
_mutedChanged(store, action, MEDIA_TYPE.AUDIO);
break;
case CAMERA_FACING_MODE_CHANGED:
store.dispatch(
createLocalTracks({
devices: [ MEDIA_TYPE.VIDEO ],
facingMode: action.cameraFacingMode
})
);
break;
case LIB_INITIALIZED:
store.dispatch(createLocalTracks());
break;
case LIB_DISPOSED:
store.dispatch(destroyLocalTracks());
break;
case VIDEO_MUTED_CHANGED:
_mutedChanged(store, action, MEDIA_TYPE.VIDEO);
break;
}
return next(action);
});
/**
* Mutes or unmutes a local track with a specific media type.
*
* @param {Store} store - The Redux store in which the specified action is
* dispatched.
* @param {Action} action - The Redux action dispatched in the specified store.
* @param {MEDIA_TYPE} mediaType - The {@link MEDIA_TYPE} of the local track
* which is being muted or unmuted.
* @private
* @returns {void}
*/
function _mutedChanged(store, action, mediaType) {
const tracks = store.getState()['features/base/tracks'];
const localTrack = getLocalTrack(tracks, mediaType);
localTrack && setTrackMuted(localTrack.jitsiTrack, action.muted);
}