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Diffstat (limited to 'ext/js/pages/settings/audio-controller.js')
| -rw-r--r-- | ext/js/pages/settings/audio-controller.js | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/ext/js/pages/settings/audio-controller.js b/ext/js/pages/settings/audio-controller.js new file mode 100644 index 00000000..e62383a8 --- /dev/null +++ b/ext/js/pages/settings/audio-controller.js @@ -0,0 +1,234 @@ +/* + * Copyright (C) 2019-2021 Yomichan Authors + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <https://www.gnu.org/licenses/>. + */ + +/* global + * AudioSystem + */ + +class AudioController { + constructor(settingsController) { + this._settingsController = settingsController; + this._audioSystem = new AudioSystem(); + this._audioSourceContainer = null; + this._audioSourceAddButton = null; + this._audioSourceEntries = []; + this._ttsVoiceTestTextInput = null; + } + + async prepare() { + this._audioSystem.prepare(); + + this._ttsVoiceTestTextInput = document.querySelector('#text-to-speech-voice-test-text'); + this._audioSourceContainer = document.querySelector('#audio-source-list'); + this._audioSourceAddButton = document.querySelector('#audio-source-add'); + this._audioSourceContainer.textContent = ''; + + this._audioSourceAddButton.addEventListener('click', this._onAddAudioSource.bind(this), false); + + if (typeof speechSynthesis !== 'undefined') { + speechSynthesis.addEventListener('voiceschanged', this._updateTextToSpeechVoices.bind(this), false); + } + this._updateTextToSpeechVoices(); + + document.querySelector('#text-to-speech-voice-test').addEventListener('click', this._onTestTextToSpeech.bind(this), false); + + this._settingsController.on('optionsChanged', this._onOptionsChanged.bind(this)); + + const options = await this._settingsController.getOptions(); + this._onOptionsChanged({options}); + } + + // Private + + _onOptionsChanged({options}) { + for (let i = this._audioSourceEntries.length - 1; i >= 0; --i) { + this._cleanupAudioSourceEntry(i); + } + + for (const audioSource of options.audio.sources) { + this._createAudioSourceEntry(audioSource); + } + } + + _onTestTextToSpeech() { + try { + const text = this._ttsVoiceTestTextInput.value || ''; + const voiceUri = document.querySelector('[data-setting="audio.textToSpeechVoice"]').value; + + const audio = this._audioSystem.createTextToSpeechAudio(text, voiceUri); + audio.volume = 1.0; + audio.play(); + } catch (e) { + // NOP + } + } + + _updateTextToSpeechVoices() { + const voices = ( + typeof speechSynthesis !== 'undefined' ? + [...speechSynthesis.getVoices()].map((voice, index) => ({ + voice, + isJapanese: this._languageTagIsJapanese(voice.lang), + index + })) : + [] + ); + voices.sort(this._textToSpeechVoiceCompare.bind(this)); + + for (const select of document.querySelectorAll('[data-setting="audio.textToSpeechVoice"]')) { + const fragment = document.createDocumentFragment(); + + let option = document.createElement('option'); + option.value = ''; + option.textContent = 'None'; + fragment.appendChild(option); + + for (const {voice} of voices) { + option = document.createElement('option'); + option.value = voice.voiceURI; + option.textContent = `${voice.name} (${voice.lang})`; + fragment.appendChild(option); + } + + select.textContent = ''; + select.appendChild(fragment); + } + } + + _textToSpeechVoiceCompare(a, b) { + if (a.isJapanese) { + if (!b.isJapanese) { return -1; } + } else { + if (b.isJapanese) { return 1; } + } + + if (a.voice.default) { + if (!b.voice.default) { return -1; } + } else { + if (b.voice.default) { return 1; } + } + + return a.index - b.index; + } + + _languageTagIsJapanese(languageTag) { + return ( + languageTag.startsWith('ja_') || + languageTag.startsWith('ja-') || + languageTag.startsWith('jpn-') + ); + } + + _getUnusedAudioSource() { + const audioSourcesAvailable = [ + 'jpod101', + 'jpod101-alternate', + 'jisho', + 'custom' + ]; + for (const source of audioSourcesAvailable) { + if (!this._audioSourceEntries.some((metadata) => metadata.value === source)) { + return source; + } + } + return audioSourcesAvailable[0]; + } + + _createAudioSourceEntry(value) { + const eventListeners = new EventListenerCollection(); + const container = this._settingsController.instantiateTemplate('audio-source'); + const select = container.querySelector('.audio-source-select'); + const removeButton = container.querySelector('.audio-source-remove'); + const menuButton = container.querySelector('.audio-source-menu-button'); + + select.value = value; + + const entry = { + container, + eventListeners, + value + }; + + eventListeners.addEventListener(select, 'change', this._onAudioSourceSelectChange.bind(this, entry), false); + if (removeButton !== null) { + eventListeners.addEventListener(removeButton, 'click', this._onAudioSourceRemoveClicked.bind(this, entry), false); + } + if (menuButton !== null) { + eventListeners.addEventListener(menuButton, 'menuClose', this._onMenuClose.bind(this, entry), false); + } + + this._audioSourceContainer.appendChild(container); + this._audioSourceEntries.push(entry); + } + + async _removeAudioSourceEntry(entry) { + const index = this._audioSourceEntries.indexOf(entry); + if (index < 0) { return; } + + this._cleanupAudioSourceEntry(index); + await this._settingsController.modifyProfileSettings([{ + action: 'splice', + path: 'audio.sources', + start: index, + deleteCount: 1, + items: [] + }]); + } + + _cleanupAudioSourceEntry(index) { + const {container, eventListeners} = this._audioSourceEntries[index]; + if (container.parentNode !== null) { + container.parentNode.removeChild(container); + } + eventListeners.removeAllEventListeners(); + this._audioSourceEntries.splice(index, 1); + } + + async _onAddAudioSource() { + const audioSource = this._getUnusedAudioSource(); + const index = this._audioSourceEntries.length; + this._createAudioSourceEntry(audioSource); + await this._settingsController.modifyProfileSettings([{ + action: 'splice', + path: 'audio.sources', + start: index, + deleteCount: 0, + items: [audioSource] + }]); + } + + async _onAudioSourceSelectChange(entry, event) { + const index = this._audioSourceEntries.indexOf(entry); + if (index < 0) { return; } + + const value = event.currentTarget.value; + entry.value = value; + await this._settingsController.setProfileSetting(`audio.sources[${index}]`, value); + } + + _onAudioSourceRemoveClicked(entry) { + this._removeAudioSourceEntry(entry); + } + + _onMenuClose(entry, e) { + switch (e.detail.action) { + case 'remove': + this._removeAudioSourceEntry(entry); + break; + } + } +} |