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-rw-r--r--ext/mixed/js/audio-system.js18
-rw-r--r--ext/mixed/js/display.js14
2 files changed, 17 insertions, 15 deletions
diff --git a/ext/mixed/js/audio-system.js b/ext/mixed/js/audio-system.js
index 7ae8efdc..19c85690 100644
--- a/ext/mixed/js/audio-system.js
+++ b/ext/mixed/js/audio-system.js
@@ -18,12 +18,13 @@
/* global
* CacheMap
* TextToSpeechAudio
+ * api
*/
class AudioSystem {
- constructor({getAudioInfo, cacheSize=32}) {
- this._cache = new CacheMap(cacheSize);
- this._getAudioInfo = getAudioInfo;
+ constructor(useCache) {
+ this._cache = new CacheMap(useCache ? 32 : 0);
+ this._fallbackAudio = null;
}
prepare() {
@@ -81,6 +82,13 @@ class AudioSystem {
throw new Error('Could not create audio');
}
+ getFallbackAudio() {
+ if (this._fallbackAudio === null) {
+ this._fallbackAudio = new Audio('/mixed/mp3/button.mp3');
+ }
+ return this._fallbackAudio;
+ }
+
createAudio(url) {
return new Promise((resolve, reject) => {
const audio = new Audio(url);
@@ -105,6 +113,10 @@ class AudioSystem {
// Private
+ async _getAudioInfo(source, expression, reading, details) {
+ return await api.getDefinitionAudioInfo(source, expression, reading, details);
+ }
+
_isAudioValid(audio) {
const duration = audio.duration;
return (
diff --git a/ext/mixed/js/display.js b/ext/mixed/js/display.js
index 3c7deefe..0b0236da 100644
--- a/ext/mixed/js/display.js
+++ b/ext/mixed/js/display.js
@@ -46,10 +46,7 @@ class Display extends EventDispatcher {
this._options = null;
this._index = 0;
this._audioPlaying = null;
- this._audioFallback = null;
- this._audioSystem = new AudioSystem({
- getAudioInfo: this._getAudioInfo.bind(this)
- });
+ this._audioSystem = new AudioSystem(true);
this._styleNode = null;
this._eventListeners = new EventListenerCollection();
this._setContentToken = null;
@@ -1234,10 +1231,7 @@ class Display extends EventDispatcher {
({audio, index} = await this._audioSystem.createDefinitionAudio(sources, expression, reading, {textToSpeechVoice, customSourceUrl}));
info = `From source ${1 + index}: ${sources[index]}`;
} catch (e) {
- if (this._audioFallback === null) {
- this._audioFallback = new Audio('/mixed/mp3/button.mp3');
- }
- audio = this._audioFallback;
+ audio = this._audioSystem.getFallbackAudio();
info = 'Could not find audio';
}
@@ -1569,10 +1563,6 @@ class Display extends EventDispatcher {
return {type, expression, reading};
}
- async _getAudioInfo(source, expression, reading, details) {
- return await api.getDefinitionAudioInfo(source, expression, reading, details);
- }
-
async _setOptionsContextIfDifferent(optionsContext) {
if (deepEqual(this._optionsContext, optionsContext)) { return; }
await this.setOptionsContext(optionsContext);