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authortoasted-nutbread <toasted-nutbread@users.noreply.github.com>2020-09-10 12:06:56 -0400
committerGitHub <noreply@github.com>2020-09-10 12:06:56 -0400
commit52b0feb2559cebfc6d895d75a80f374ee5974f5e (patch)
tree29c1b490c2b24dd691ad15ad0942407d3e0125e0 /ext/mixed/js/text-to-speech-audio.js
parent35abd517b933036b95bb58b463a48edd1c985bb1 (diff)
Move TextToSpeechAudio to a separate file (#800)
Diffstat (limited to 'ext/mixed/js/text-to-speech-audio.js')
-rw-r--r--ext/mixed/js/text-to-speech-audio.js66
1 files changed, 66 insertions, 0 deletions
diff --git a/ext/mixed/js/text-to-speech-audio.js b/ext/mixed/js/text-to-speech-audio.js
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+++ b/ext/mixed/js/text-to-speech-audio.js
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+/*
+ * Copyright (C) 2020 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/>.
+ */
+
+class TextToSpeechAudio {
+ constructor(text, voice) {
+ this.text = text;
+ this.voice = voice;
+ this._utterance = null;
+ this._volume = 1;
+ }
+
+ get currentTime() {
+ return 0;
+ }
+ set currentTime(value) {
+ // NOP
+ }
+
+ get volume() {
+ return this._volume;
+ }
+ set volume(value) {
+ this._volume = value;
+ if (this._utterance !== null) {
+ this._utterance.volume = value;
+ }
+ }
+
+ async play() {
+ try {
+ if (this._utterance === null) {
+ this._utterance = new SpeechSynthesisUtterance(this.text || '');
+ this._utterance.lang = 'ja-JP';
+ this._utterance.volume = this._volume;
+ this._utterance.voice = this.voice;
+ }
+
+ speechSynthesis.cancel();
+ speechSynthesis.speak(this._utterance);
+ } catch (e) {
+ // NOP
+ }
+ }
+
+ pause() {
+ try {
+ speechSynthesis.cancel();
+ } catch (e) {
+ // NOP
+ }
+ }
+}