* Add template instantiation API to SettingsController * Use SettingsController.instantiateTemplate
228 lines
7.5 KiB
JavaScript
228 lines
7.5 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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* AudioSystem
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*/
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class AudioController {
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constructor(settingsController) {
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this._settingsController = settingsController;
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this._audioSystem = new AudioSystem({
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cacheSize: 0
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});
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this._audioSourceContainer = null;
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this._audioSourceAddButton = null;
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this._audioSourceEntries = [];
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}
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async prepare() {
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this._audioSystem.prepare();
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this._audioSourceContainer = document.querySelector('.audio-source-list');
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this._audioSourceAddButton = document.querySelector('.audio-source-add');
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this._audioSourceContainer.textContent = '';
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this._audioSourceAddButton.addEventListener('click', this._onAddAudioSource.bind(this), false);
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this._prepareTextToSpeech();
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this._settingsController.on('optionsChanged', this._onOptionsChanged.bind(this));
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const options = await this._settingsController.getOptions();
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this._onOptionsChanged({options});
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}
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// Private
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_onOptionsChanged({options}) {
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for (let i = this._audioSourceEntries.length - 1; i >= 0; --i) {
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this._cleanupAudioSourceEntry(i);
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}
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for (const audioSource of options.audio.sources) {
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this._createAudioSourceEntry(audioSource);
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}
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}
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_prepareTextToSpeech() {
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if (typeof speechSynthesis === 'undefined') { return; }
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speechSynthesis.addEventListener('voiceschanged', this._updateTextToSpeechVoices.bind(this), false);
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this._updateTextToSpeechVoices();
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document.querySelector('#text-to-speech-voice').addEventListener('change', this._onTextToSpeechVoiceChange.bind(this), false);
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document.querySelector('#text-to-speech-voice-test').addEventListener('click', this._testTextToSpeech.bind(this), false);
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}
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_updateTextToSpeechVoices() {
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const voices = Array.prototype.map.call(speechSynthesis.getVoices(), (voice, index) => ({voice, index}));
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voices.sort(this._textToSpeechVoiceCompare.bind(this));
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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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_textToSpeechVoiceCompare(a, b) {
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const aIsJapanese = this._languageTagIsJapanese(a.voice.lang);
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const bIsJapanese = this._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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_languageTagIsJapanese(languageTag) {
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return (
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languageTag.startsWith('ja_') ||
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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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_testTextToSpeech() {
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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 = this._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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_getUnusedAudioSource() {
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const audioSourcesAvailable = [
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'jpod101',
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'jpod101-alternate',
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'jisho',
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'custom'
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];
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for (const source of audioSourcesAvailable) {
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if (!this._audioSourceEntries.some((metadata) => metadata.value === source)) {
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return source;
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}
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}
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return audioSourcesAvailable[0];
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}
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_createAudioSourceEntry(value) {
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const eventListeners = new EventListenerCollection();
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const container = this._settingsController.instantiateTemplate('audio-source');
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const select = container.querySelector('.audio-source-select');
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const removeButton = container.querySelector('.audio-source-remove');
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select.value = value;
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const entry = {
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container,
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eventListeners,
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value
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};
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eventListeners.addEventListener(select, 'change', this._onAudioSourceSelectChange.bind(this, entry), false);
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eventListeners.addEventListener(removeButton, 'click', this._onAudioSourceRemoveClicked.bind(this, entry), false);
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this._audioSourceContainer.appendChild(container);
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this._audioSourceEntries.push(entry);
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}
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async _removeAudioSourceEntry(entry) {
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const index = this._audioSourceEntries.indexOf(entry);
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if (index < 0) { return; }
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this._cleanupAudioSourceEntry(index);
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await this._settingsController.modifyProfileSettings([{
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action: 'splice',
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path: 'audio.sources',
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start: index,
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deleteCount: 1,
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items: []
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}]);
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}
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_cleanupAudioSourceEntry(index) {
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const {container, eventListeners} = this._audioSourceEntries[index];
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if (container.parentNode !== null) {
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container.parentNode.removeChild(container);
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}
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eventListeners.removeAllEventListeners();
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this._audioSourceEntries.splice(index, 1);
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}
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_onTextToSpeechVoiceChange(e) {
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e.currentTarget.dataset.value = e.currentTarget.value;
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}
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async _onAddAudioSource() {
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const audioSource = this._getUnusedAudioSource();
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const index = this._audioSourceEntries.length;
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this._createAudioSourceEntry(audioSource);
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await this._settingsController.modifyProfileSettings([{
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action: 'splice',
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path: 'audio.sources',
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start: index,
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deleteCount: 0,
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items: [audioSource]
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}]);
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}
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async _onAudioSourceSelectChange(entry, event) {
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const index = this._audioSourceEntries.indexOf(entry);
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if (index < 0) { return; }
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const value = event.currentTarget.value;
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entry.value = value;
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await this._settingsController.setProfileSetting(`audio.sources[${index}]`, value);
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}
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async _onAudioSourceRemoveClicked(entry) {
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await this._removeAudioSourceEntry(entry);
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}
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}
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