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https://github.com/scratchfoundation/scratchjr.git
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Module version of ScratchAudio.js
This commit is contained in:
Tim Mickel
parent
ca72375e97
commit
640828085b
1 changed files with 135 additions and 134 deletions
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@ -1,164 +1,165 @@
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import {isAndroid} from './lib';
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////////////////////////////////////////////////////
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/// Sound Playing
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////////////////////////////////////////////////////
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ScratchAudio = function () {};
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ScratchAudio.isAndroid = isAndroid;
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ScratchAudio.uiSounds = {};
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ScratchAudio.context;
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ScratchAudio.firstTime = true;
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ScratchAudio.defaultSounds = ['cut.wav', 'snap.wav', 'copy.wav', 'grab.wav', 'boing.wav', 'tap.wav',
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export let uiSounds = {};
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export let context;
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export let firstTime = true;
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let defaultSounds = ['cut.wav', 'snap.wav', 'copy.wav', 'grab.wav', 'boing.wav', 'tap.wav',
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'keydown.wav', 'entertap.wav', 'exittap.wav', 'splash.wav'];
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ScratchAudio.projectSounds = {};
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ScratchAudio.path = '';
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export let projectSounds = {};
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let path = '';
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ScratchAudio.firstClick = function () { // trick to abilitate the Audio context in iOS 8+
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var res = true;
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if (ScratchAudio.uiSounds['keydown.wav']) {
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ScratchAudio.uiSounds['keydown.wav'].playWithVolume(0);
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res = false;
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}
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ScratchAudio.firstTime = res;
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};
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ScratchAudio.firstOnTouchEnd = function () { // trick to abilitate the Audio context in iOS 9
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if (ScratchAudio.uiSounds['keydown.wav']) {
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ScratchAudio.uiSounds['keydown.wav'].playWithVolume(0);
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}
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window.removeEventListener('touchend', ScratchAudio.firstOnTouchEnd, false);
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};
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ScratchAudio.sndFX = function (name) {
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ScratchAudio.sndFXWithVolume(name, 1.0);
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};
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ScratchAudio.sndFXWithVolume = function (name, volume) {
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if (!ScratchAudio.isAndroid) {
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if (!ScratchAudio.uiSounds[name]) {
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return;
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export default class ScratchAudio {
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static firstClick () { // trick to abilitate the Audio context in iOS 8+
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var res = true;
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if (uiSounds['keydown.wav']) {
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uiSounds['keydown.wav'].playWithVolume(0);
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res = false;
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}
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ScratchAudio.uiSounds[name].playWithVolume(volume);
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ScratchAudio.firstTime = false;
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} else {
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AndroidInterface.audio_sndfxwithvolume(name, volume);
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firstTime = res;
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}
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};
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ScratchAudio.init = function (prefix) {
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if (!prefix) {
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prefix = '';
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static firstOnTouchEnd () { // trick to abilitate the Audio context in iOS 9
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if (uiSounds['keydown.wav']) {
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uiSounds['keydown.wav'].playWithVolume(0);
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}
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window.removeEventListener('touchend', ScratchAudio.firstOnTouchEnd, false);
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}
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if (!ScratchAudio.isAndroid) {
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ScratchAudio.context = new webkitAudioContext();
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} else {
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ScratchAudio.context = {
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decodeAudioData: function () {
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},
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play: function () {
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static sndFX (name) {
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ScratchAudio.sndFXWithVolume(name, 1.0);
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}
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static sndFXWithVolume (name, volume) {
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if (!isAndroid) {
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if (!uiSounds[name]) {
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return;
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}
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};
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uiSounds[name].playWithVolume(volume);
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firstTime = false;
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} else {
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AndroidInterface.audio_sndfxwithvolume(name, volume);
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}
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}
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ScratchAudio.context.sampleRate = 44100;
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ScratchAudio.uiSounds = {};
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for (var i = 0; i < ScratchAudio.defaultSounds.length; i++) {
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ScratchAudio.addSound(prefix + 'sounds/', ScratchAudio.defaultSounds[i], ScratchAudio.uiSounds);
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static init (prefix) {
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if (!prefix) {
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prefix = '';
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}
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if (!isAndroid) {
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context = new webkitAudioContext();
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} else {
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context = {
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decodeAudioData: function () {
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},
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play: function () {
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}
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};
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}
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context.sampleRate = 44100;
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uiSounds = {};
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for (var i = 0; i < defaultSounds.length; i++) {
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ScratchAudio.addSound(prefix + 'sounds/', defaultSounds[i], uiSounds);
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}
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ScratchAudio.addSound(path, prefix + 'pop.mp3', projectSounds);
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}
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ScratchAudio.addSound(ScratchAudio.path, prefix + 'pop.mp3', ScratchAudio.projectSounds);
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};
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ScratchAudio.addSound = function (url, snd, dict, fcn) {
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if (!ScratchAudio.isAndroid) {
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static addSound (url, snd, dict, fcn) {
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if (!isAndroid) {
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var bufferSound = function () {
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ScratchAudio.context.decodeAudioData(request.response, onDecode, onDecodeError);
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};
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var onDecodeError = function () {
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if (fcn) {
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fcn('error');
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}
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};
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var onDecode = function (buffer) {
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dict[snd] = new Sound(buffer);
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var bufferSound = function () {
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context.decodeAudioData(request.response, onDecode, onDecodeError);
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};
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var onDecodeError = function () {
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if (fcn) {
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fcn('error');
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}
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};
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var onDecode = function (buffer) {
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dict[snd] = new Sound(buffer);
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if (fcn) {
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fcn(snd);
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}
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};
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var transferFailed = function (e) {
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e.preventDefault();
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e.stopPropagation();
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};
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var request = new XMLHttpRequest();
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request.open('GET', url + snd, true);
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request.responseType = 'arraybuffer';
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request.addEventListener('load', bufferSound, false);
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request.addEventListener('error', transferFailed, false);
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request.send(null);
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} else {
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// In Android, this is handled outside of JavaScript, so just place a stub here.
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dict[snd] = new Sound(url + snd);
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if (fcn) {
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fcn(snd);
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}
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};
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var transferFailed = function (e) {
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e.preventDefault();
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e.stopPropagation();
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};
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var request = new XMLHttpRequest();
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request.open('GET', url + snd, true);
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request.responseType = 'arraybuffer';
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request.addEventListener('load', bufferSound, false);
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request.addEventListener('error', transferFailed, false);
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request.send(null);
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} else {
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// In Android, this is handled outside of JavaScript, so just place a stub here.
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dict[snd] = new Sound(url + snd);
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if (fcn) {
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fcn(snd);
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}
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}
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};
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ScratchAudio.loadProjectSound = function (md5, fcn) {
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if (!md5) {
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return;
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}
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if (md5.indexOf('/') > -1) {
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ScratchAudio.loadFromLocal(md5, fcn);
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} else {
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static loadProjectSound (md5, fcn) {
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if (!md5) {
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return;
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}
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if (md5.indexOf('/') > -1) {
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ScratchAudio.loadFromLocal(md5, fcn);
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} else {
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if (md5.indexOf('wav') > -1) {
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if (!ScratchAudio.isAndroid) {
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iOS.getmedia(md5, nextStep);
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if (md5.indexOf('wav') > -1) {
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if (!isAndroid) {
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iOS.getmedia(md5, nextStep);
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} else {
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// On Android, all sounds play server-side
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ScratchAudio.loadFromLocal(md5, fcn);
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}
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} else {
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// On Android, all sounds play server-side
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ScratchAudio.loadFromLocal(md5, fcn);
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}
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}
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function nextStep (data) {
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ScratchAudio.loadFromData(md5, data, fcn);
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}
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}
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static loadFromLocal (md5, fcn) {
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if (projectSounds[md5] != undefined) {
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return;
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}
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ScratchAudio.addSound(path, md5, projectSounds, fcn);
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}
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static loadFromData (md5, data, fcn) {
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if (!data) {
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projectSounds[md5] = projectSounds['pop.mp3'];
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} else {
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ScratchAudio.loadFromLocal(md5, fcn);
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var onDecode = function (buffer) {
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projectSounds[md5] = new Sound(buffer);
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if (fcn) {
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fcn(md5);
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}
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};
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var onError = function () {
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// console.log ("error", md5, err);
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if (fcn) {
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fcn('error');
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}
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};
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var byteString = atob(data); // take out the base 64 encoding
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var buffer = new ArrayBuffer(byteString.length);
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var bytearray = new Uint8Array(buffer);
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for (var i = 0; i < byteString.length; i++) {
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bytearray[i] = byteString.charCodeAt(i);
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}
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context.decodeAudioData(buffer, onDecode, onError);
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}
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}
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function nextStep (data) {
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ScratchAudio.loadFromData(md5, data, fcn);
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}
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};
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ScratchAudio.loadFromLocal = function (md5, fcn) {
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if (ScratchAudio.projectSounds[md5] != undefined) {
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return;
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}
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ScratchAudio.addSound(ScratchAudio.path, md5, ScratchAudio.projectSounds, fcn);
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};
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ScratchAudio.loadFromData = function (md5, data, fcn) {
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if (!data) {
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ScratchAudio.projectSounds[md5] = ScratchAudio.projectSounds['pop.mp3'];
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} else {
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var onDecode = function (buffer) {
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ScratchAudio.projectSounds[md5] = new Sound(buffer);
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if (fcn) {
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fcn(md5);
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}
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};
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var onError = function () {
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// console.log ("error", md5, err);
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if (fcn) {
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fcn('error');
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}
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};
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var byteString = atob(data); // take out the base 64 encoding
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var buffer = new ArrayBuffer(byteString.length);
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var bytearray = new Uint8Array(buffer);
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for (var i = 0; i < byteString.length; i++) {
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bytearray[i] = byteString.charCodeAt(i);
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}
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ScratchAudio.context.decodeAudioData(buffer, onDecode, onError);
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}
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};
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}
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window.addEventListener('touchend', ScratchAudio.firstOnTouchEnd, false);
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