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authortoasted-nutbread <toasted-nutbread@users.noreply.github.com>2019-10-12 22:50:22 -0400
committertoasted-nutbread <toasted-nutbread@users.noreply.github.com>2019-10-13 12:20:56 -0400
commit21a2730cdeef80327285f77a155451a8fbf67939 (patch)
tree01f53f126535e5d7109a4822d07b8c3967ebe918 /ext/bg/js/settings.js
parent2f88bcf82c4dd82d1dd2f035717effaa2673e3c2 (diff)
Add option for text-to-speech
Diffstat (limited to 'ext/bg/js/settings.js')
-rw-r--r--ext/bg/js/settings.js73
1 files changed, 73 insertions, 0 deletions
diff --git a/ext/bg/js/settings.js b/ext/bg/js/settings.js
index 77815955..debf9f2f 100644
--- a/ext/bg/js/settings.js
+++ b/ext/bg/js/settings.js
@@ -48,6 +48,7 @@ async function formRead(options) {
options.audio.autoPlay = $('#auto-play-audio').prop('checked');
options.audio.volume = parseFloat($('#audio-playback-volume').val());
options.audio.customSourceUrl = $('#audio-custom-source').val();
+ options.audio.textToSpeechVoice = $('#text-to-speech-voice').val();
options.scanning.middleMouse = $('#middle-mouse-button-scan').prop('checked');
options.scanning.touchInputEnabled = $('#touch-input-enabled').prop('checked');
@@ -119,6 +120,7 @@ async function formWrite(options) {
$('#auto-play-audio').prop('checked', options.audio.autoPlay);
$('#audio-playback-volume').val(options.audio.volume);
$('#audio-custom-source').val(options.audio.customSourceUrl);
+ $('#text-to-speech-voice').val(options.audio.textToSpeechVoice).attr('data-value', options.audio.textToSpeechVoice);
$('#middle-mouse-button-scan').prop('checked', options.scanning.middleMouse);
$('#touch-input-enabled').prop('checked', options.scanning.touchInputEnabled);
@@ -326,6 +328,77 @@ async function audioSettingsInitialize() {
const options = await apiOptionsGet(optionsContext);
audioSourceUI = new AudioSourceUI.Container(options.audio.sources, $('.audio-source-list'), $('.audio-source-add'));
audioSourceUI.save = () => apiOptionsSave();
+
+ textToSpeechInitialize();
+}
+
+function textToSpeechInitialize() {
+ if (typeof speechSynthesis === 'undefined') { return; }
+
+ speechSynthesis.addEventListener('voiceschanged', () => updateTextToSpeechVoices(), false);
+ updateTextToSpeechVoices();
+
+ $('#text-to-speech-voice-test').on('click', () => textToSpeechTest());
+}
+
+function updateTextToSpeechVoices() {
+ const voices = Array.prototype.map.call(speechSynthesis.getVoices(), (voice, index) => ({voice, index}));
+ voices.sort(textToSpeechVoiceCompare);
+ if (voices.length > 0) {
+ $('#text-to-speech-voice-container').css('display', '');
+ }
+
+ const select = $('#text-to-speech-voice');
+ select.empty();
+ select.append($('<option>').val('').text('None'));
+ for (const {voice} of voices) {
+ select.append($('<option>').val(voice.voiceURI).text(`${voice.name} (${voice.lang})`));
+ }
+
+ select.val(select.attr('data-value'));
+}
+
+function compareLanguageTags(a, b) {
+ if (a.substr(0, 3) === 'ja-') {
+ return (b.substr(0, 3) === 'ja-') ? 0 : -1;
+ } else {
+ return (b.substr(0, 3) === 'ja-') ? 1 : 0;
+ }
+}
+
+function textToSpeechVoiceCompare(a, b) {
+ const i = compareLanguageTags(a.voice.lang, b.voice.lang);
+ if (i !== 0) { return i; }
+
+ if (a.voice.default) {
+ if (!b.voice.default) {
+ return -1;
+ }
+ } else if (b.voice.default) {
+ return 1;
+ }
+
+ if (a.index < b.index) { return -1; }
+ if (a.index > b.index) { return 1; }
+ return 0;
+}
+
+function textToSpeechTest() {
+ try {
+ const text = $('#text-to-speech-voice-test').attr('data-speech-text') || '';
+ const voiceURI = $('#text-to-speech-voice').val();
+ const voice = audioGetTextToSpeechVoice(voiceURI);
+ if (voice === null) { return; }
+
+ const utterance = new SpeechSynthesisUtterance(text);
+ utterance.lang = 'ja-JP';
+ utterance.voice = voice;
+ utterance.volume = 1.0;
+
+ speechSynthesis.speak(utterance);
+ } catch (e) {
+ // NOP
+ }
}