127 lines
3.8 KiB
JavaScript
127 lines
3.8 KiB
JavaScript
/*
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* Copyright (C) 2019-2020 Yomichan Authors
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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/* global
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* AudioSourceUI
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* AudioSystem
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* apiAudioGetUri
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* getOptionsContext
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* getOptionsMutable
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* settingsSaveOptions
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*/
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let audioSourceUI = null;
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let audioSystem = null;
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async function audioSettingsInitialize() {
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audioSystem = new AudioSystem({
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audioUriBuilder: null,
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useCache: true
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});
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const optionsContext = getOptionsContext();
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const options = await getOptionsMutable(optionsContext);
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audioSourceUI = new AudioSourceUI.Container(
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options.audio.sources,
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document.querySelector('.audio-source-list'),
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document.querySelector('.audio-source-add')
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);
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audioSourceUI.save = settingsSaveOptions;
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textToSpeechInitialize();
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}
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function textToSpeechInitialize() {
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if (typeof speechSynthesis === 'undefined') { return; }
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speechSynthesis.addEventListener('voiceschanged', updateTextToSpeechVoices, false);
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updateTextToSpeechVoices();
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document.querySelector('#text-to-speech-voice').addEventListener('change', onTextToSpeechVoiceChange, false);
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document.querySelector('#text-to-speech-voice-test').addEventListener('click', textToSpeechTest, false);
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}
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function updateTextToSpeechVoices() {
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const voices = Array.prototype.map.call(speechSynthesis.getVoices(), (voice, index) => ({voice, index}));
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voices.sort(textToSpeechVoiceCompare);
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document.querySelector('#text-to-speech-voice-container').hidden = (voices.length === 0);
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const fragment = document.createDocumentFragment();
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let option = document.createElement('option');
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option.value = '';
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option.textContent = 'None';
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fragment.appendChild(option);
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for (const {voice} of voices) {
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option = document.createElement('option');
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option.value = voice.voiceURI;
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option.textContent = `${voice.name} (${voice.lang})`;
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fragment.appendChild(option);
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}
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const select = document.querySelector('#text-to-speech-voice');
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select.textContent = '';
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select.appendChild(fragment);
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select.value = select.dataset.value;
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}
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function languageTagIsJapanese(languageTag) {
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return (
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languageTag.startsWith('ja-') ||
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languageTag.startsWith('jpn-')
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);
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}
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function textToSpeechVoiceCompare(a, b) {
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const aIsJapanese = languageTagIsJapanese(a.voice.lang);
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const bIsJapanese = languageTagIsJapanese(b.voice.lang);
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if (aIsJapanese) {
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if (!bIsJapanese) { return -1; }
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} else {
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if (bIsJapanese) { return 1; }
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}
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const aIsDefault = a.voice.default;
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const bIsDefault = b.voice.default;
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if (aIsDefault) {
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if (!bIsDefault) { return -1; }
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} else {
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if (bIsDefault) { return 1; }
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}
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return a.index - b.index;
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}
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function textToSpeechTest() {
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try {
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const text = document.querySelector('#text-to-speech-voice-test').dataset.speechText || '';
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const voiceUri = document.querySelector('#text-to-speech-voice').value;
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const audio = audioSystem.createTextToSpeechAudio(text, voiceUri);
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audio.volume = 1.0;
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audio.play();
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} catch (e) {
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// NOP
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}
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}
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function onTextToSpeechVoiceChange(e) {
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e.currentTarget.dataset.value = e.currentTarget.value;
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}
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