3e350bd563
* 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
110 lines
3.7 KiB
JavaScript
110 lines
3.7 KiB
JavaScript
/*
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* Copyright (C) 2021 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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* DictionaryImporterMediaLoader
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*/
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class DictionaryDatabaseModifier {
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constructor() {
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this._dictionaryImporterMediaLoader = new DictionaryImporterMediaLoader();
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}
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importDictionary(archiveContent, details, onProgress) {
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return this._invoke('importDictionary', {details, archiveContent}, [archiveContent], onProgress);
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}
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// Private
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_invoke(action, params, transfer, onProgress) {
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return new Promise((resolve, reject) => {
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const worker = new Worker('/js/language/dictionary-worker-main.js', {});
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const details = {
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complete: false,
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worker,
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resolve,
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reject,
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onMessage: null,
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onProgress
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};
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const onMessage = this._onMessage.bind(this, details);
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details.onMessage = onMessage;
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worker.addEventListener('message', onMessage);
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worker.postMessage({action, params}, transfer);
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});
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}
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_onMessage(details, e) {
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if (details.complete) { return; }
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const {action, params} = e.data;
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switch (action) {
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case 'complete':
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{
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const {worker, resolve, reject, onMessage} = details;
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details.complete = true;
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details.worker = null;
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details.resolve = null;
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details.reject = null;
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details.onMessage = null;
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worker.removeEventListener('message', onMessage);
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worker.terminate();
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this._onMessageComplete(params, resolve, reject);
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}
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break;
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case 'progress':
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this._onMessageProgress(params, details.onProgress);
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break;
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case 'getImageResolution':
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this._onMessageGetImageResolution(params, details.worker);
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break;
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}
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}
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_onMessageComplete(params, resolve, reject) {
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const {error} = params;
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if (typeof error !== 'undefined') {
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reject(deserializeError(error));
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} else {
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resolve(this._formatResult(params.result));
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}
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}
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_onMessageProgress(params, onProgress) {
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if (typeof onProgress !== 'function') { return; }
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const {args} = params;
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onProgress(...args);
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}
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async _onMessageGetImageResolution(params, worker) {
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const {id, mediaType, content} = params;
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let response;
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try {
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const result = await this._dictionaryImporterMediaLoader.getImageResolution(mediaType, content);
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response = {id, result};
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} catch (e) {
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response = {id, error: serializeError(e)};
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}
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worker.postMessage({action: 'getImageResolution.response', params: response});
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}
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_formatResult(data) {
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const {result, errors} = data;
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const errors2 = errors.map((error) => deserializeError(error));
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return {result, errors: errors2};
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}
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}
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