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authortoasted-nutbread <toasted-nutbread@users.noreply.github.com>2021-08-14 11:46:26 -0400
committerGitHub <noreply@github.com>2021-08-14 11:46:26 -0400
commit3e350bd563886e49fed309731d99f37e6f3ab320 (patch)
tree688f3ca34cc53203df99b2126e334e3c817da281 /ext/js/language/dictionary-worker.js
parentcd78d56feedef1475ce8ddb98e208c7a004819df (diff)
Dictionary worker refactor (#1894)
* Rename dictionary worker files * Rename classes * Rename file * Rename class * Generalize the _invoke method * Rename 'import' to 'importDictionary' * Improve DictionaryImporterMediaLoader usage * Refactor message handler * Generalize onProgress event
Diffstat (limited to 'ext/js/language/dictionary-worker.js')
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1 files changed, 83 insertions, 0 deletions
diff --git a/ext/js/language/dictionary-worker.js b/ext/js/language/dictionary-worker.js
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+/*
+ * Copyright (C) 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
+ * DictionaryDatabase
+ * DictionaryImporter
+ * DictionaryWorkerMediaLoader
+ */
+
+class DictionaryWorker {
+ constructor() {
+ this._mediaLoader = new DictionaryWorkerMediaLoader();
+ }
+
+ prepare() {
+ self.addEventListener('message', this._onMessage.bind(this), false);
+ }
+
+ // Private
+
+ _onMessage(e) {
+ const {action, params} = e.data;
+ switch (action) {
+ case 'importDictionary':
+ this._onImportDictionary(params);
+ break;
+ case 'getImageResolution.response':
+ this._mediaLoader.handleMessage(params);
+ break;
+ }
+ }
+
+ async _onImportDictionary({details, archiveContent}) {
+ const onProgress = (...args) => {
+ self.postMessage({
+ action: 'progress',
+ params: {args}
+ });
+ };
+ let response;
+ try {
+ const result = await this._importDictionary(archiveContent, details, onProgress);
+ response = {result};
+ } catch (e) {
+ response = {error: serializeError(e)};
+ }
+ self.postMessage({action: 'complete', params: response});
+ }
+
+ async _importDictionary(archiveContent, importDetails, onProgress) {
+ const dictionaryDatabase = await this._getPreparedDictionaryDatabase();
+ try {
+ const dictionaryImporter = new DictionaryImporter(this._mediaLoader, onProgress);
+ const {result, errors} = await dictionaryImporter.importDictionary(dictionaryDatabase, archiveContent, importDetails);
+ return {
+ result,
+ errors: errors.map((error) => serializeError(error))
+ };
+ } finally {
+ dictionaryDatabase.close();
+ }
+ }
+
+ async _getPreparedDictionaryDatabase() {
+ const dictionaryDatabase = new DictionaryDatabase();
+ await dictionaryDatabase.prepare();
+ return dictionaryDatabase;
+ }
+}