/**
* Note: we enforce that this method is called on the UI thread, so we can call
* nativeVoicesChanged directly.
*/
private void initialize() {
assert mNativeTtsPlatformImplAndroid != 0;
// Note: Android supports multiple speech engines, but querying the
// metadata about all of them is expensive. So we deliberately only
// support the default speech engine, and expose the different
// supported languages for the default engine as different voices.
String defaultEngineName = mTextToSpeech.getDefaultEngine();
String engineLabel = defaultEngineName;
for (TextToSpeech.EngineInfo info : mTextToSpeech.getEngines()) {
if (info.name.equals(defaultEngineName)) engineLabel = info.label;
}
Locale[] locales = Locale.getAvailableLocales();
mVoices = new ArrayList<TtsVoice>();
for (int i = 0; i < locales.length; ++i) {
if (!locales[i].getVariant().isEmpty()) continue;
if (mTextToSpeech.isLanguageAvailable(locales[i]) > 0) {
String name = locales[i].getDisplayLanguage();
if (!locales[i].getCountry().isEmpty()) {
name += " " + locales[i].getDisplayCountry();
}
TtsVoice voice = new TtsVoice(name, locales[i].toString());
mVoices.add(voice);
}
}
mInitialized = true;
nativeVoicesChanged(mNativeTtsPlatformImplAndroid);
}
protected void execute(Command cmd) {
Log.i("TTS: " + cmd.getOriginalCommand());
if (isMatchingCmd(cmd, "tts")) {
if (mTtsAvailable) {
mTts.speak(cmd.getAllArg1(), TextToSpeech.QUEUE_ADD, null);
} else {
send(R.string.chat_tts_installation);
Intent intent = new Intent(TextToSpeech.Engine.ACTION_INSTALL_TTS_DATA);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
sContext.startActivity(intent);
}
} else if (isMatchingCmd(cmd, "tts-engine-list")) {
if (Build.VERSION.SDK_INT < VERSION_CODES.ICE_CREAM_SANDWICH) {
send(R.string.android_version_incompatible, "ICE CREAM SANDWICH");
} else {
StringBuilder sb = new StringBuilder(getString(R.string.chat_tts_engines));
for (EngineInfo engine : mTts.getEngines()) {
sb.append(engine.label).append(" - ").append(engine.name).append("\n");
}
send(sb.substring(0, Math.max(0, sb.length() - 1)));
}
} else if (isMatchingCmd(cmd, "tts-lang-list")) {
StringBuilder sb = new StringBuilder(getString(R.string.chat_tts_languages));
for (Locale locale : Locale.getAvailableLocales()) {
switch (mTts.isLanguageAvailable(locale)) {
case TextToSpeech.LANG_AVAILABLE:
sb.append(locale.getDisplayLanguage());
if (locale.getDisplayCountry() != null && locale.getDisplayCountry().length() > 0) {
sb.append(" (").append(locale.getDisplayCountry()).append(")");
}
sb.append(" - ").append(locale.getLanguage());
if (locale.getDisplayCountry() != null && locale.getDisplayCountry().length() > 0) {
sb.append(":").append(locale.getCountry());
}
sb.append("\n");
break;
}
}
send(sb.substring(0, Math.max(0, sb.length() - 1)));
} else if (isMatchingCmd(cmd, "tts-engine")) {
if (Build.VERSION.SDK_INT < VERSION_CODES.ICE_CREAM_SANDWICH) {
send(R.string.android_version_incompatible, "ICE CREAM SANDWICH");
} else {
mTts = new TextToSpeech(sContext, this, cmd.getAllArg1());
send(getString(R.string.chat_tts_engine) + mTts.getDefaultEngine());
}
} else if (isMatchingCmd(cmd, "tts-lang")) {
String arg1 = cmd.getArg1();
String arg2 = cmd.getArg2();
if (!arg1.equals("") && !arg2.equals("")) {
mLocale = new Locale(arg1, arg2);
mTts.setLanguage(mLocale);
} else if (!arg1.equals("")) {
mLocale = new Locale(arg1);
mTts.setLanguage(mLocale);
}
send(getString(R.string.chat_tts_language) + mTts.getLanguage().getDisplayName());
}
}