/* * 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 * DictionaryImporterMediaLoader */ class DictionaryWorker { constructor() { this._dictionaryImporterMediaLoader = new DictionaryImporterMediaLoader(); } importDictionary(archiveContent, details, onProgress) { return this._invoke( 'importDictionary', {details, archiveContent}, [archiveContent], onProgress, this._formatimportDictionaryResult.bind(this) ); } deleteDictionary(dictionaryTitle, onProgress) { return this._invoke('deleteDictionary', {dictionaryTitle}, [], onProgress); } getDictionaryCounts(dictionaryNames, getTotal) { return this._invoke('getDictionaryCounts', {dictionaryNames, getTotal}, [], null); } // Private _invoke(action, params, transfer, onProgress, formatResult) { return new Promise((resolve, reject) => { const worker = new Worker('/js/language/dictionary-worker-main.js', {}); const details = { complete: false, worker, resolve, reject, onMessage: null, onProgress, formatResult }; const onMessage = this._onMessage.bind(this, details); details.onMessage = onMessage; worker.addEventListener('message', onMessage); worker.postMessage({action, params}, transfer); }); } _onMessage(details, e) { if (details.complete) { return; } const {action, params} = e.data; switch (action) { case 'complete': { const {worker, resolve, reject, onMessage, formatResult} = details; details.complete = true; details.worker = null; details.resolve = null; details.reject = null; details.onMessage = null; details.onProgress = null; details.formatResult = null; worker.removeEventListener('message', onMessage); worker.terminate(); this._onMessageComplete(params, resolve, reject, formatResult); } break; case 'progress': this._onMessageProgress(params, details.onProgress); break; case 'getImageDetails': this._onMessageGetImageDetails(params, details.worker); break; } } _onMessageComplete(params, resolve, reject, formatResult) { const {error} = params; if (typeof error !== 'undefined') { reject(deserializeError(error)); } else { let {result} = params; try { if (typeof formatResult === 'function') { result = formatResult(result); } } catch (e) { reject(e); return; } resolve(result); } } _onMessageProgress(params, onProgress) { if (typeof onProgress !== 'function') { return; } const {args} = params; onProgress(...args); } async _onMessageGetImageDetails(params, worker) { const {id, content, mediaType} = params; const transfer = []; let response; try { const result = await this._dictionaryImporterMediaLoader.getImageDetails(content, mediaType, transfer); response = {id, result}; } catch (e) { response = {id, error: serializeError(e)}; } worker.postMessage({action: 'getImageDetails.response', params: response}, transfer); } _formatimportDictionaryResult(result) { result.errors = result.errors.map((error) => deserializeError(error)); return result; } }