74 lines
1.8 KiB
JavaScript
74 lines
1.8 KiB
JavaScript
// @flow
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import { MiddlewareRegistry } from '../redux';
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import { PLAY_SOUND, STOP_SOUND } from './actionTypes';
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import logger from './logger';
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/**
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* Implements the entry point of the middleware of the feature base/media.
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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 PLAY_SOUND:
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_playSound(store, action.soundId);
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break;
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case STOP_SOUND:
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_stopSound(store, action.soundId);
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break;
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}
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return next(action);
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});
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/**
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* Plays sound from audio element registered in the Redux store.
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*
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* @param {Store} store - The Redux store instance.
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* @param {string} soundId - Audio element identifier.
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* @private
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* @returns {void}
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*/
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function _playSound({ getState }, soundId) {
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const sounds = getState()['features/base/sounds'];
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const sound = sounds.get(soundId);
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if (sound) {
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if (sound.audioElement) {
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sound.audioElement.play();
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} else {
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logger.warn(`PLAY_SOUND: sound not loaded yet for id: ${soundId}`);
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}
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} else {
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logger.warn(`PLAY_SOUND: no sound found for id: ${soundId}`);
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}
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}
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/**
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* Stop sound from audio element registered in the Redux store.
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*
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* @param {Store} store - The Redux store instance.
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* @param {string} soundId - Audio element identifier.
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* @private
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* @returns {void}
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*/
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function _stopSound({ getState }, soundId) {
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const sounds = getState()['features/base/sounds'];
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const sound = sounds.get(soundId);
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if (sound) {
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const { audioElement } = sound;
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if (audioElement) {
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audioElement.stop();
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} else {
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logger.warn(`STOP_SOUND: sound not loaded yet for id: ${soundId}`);
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}
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} else {
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logger.warn(`STOP_SOUND: no sound found for id: ${soundId}`);
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}
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}
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