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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
* DictionaryImporterMediaLoader
*/
class DictionaryDatabaseModifier {
constructor() {
this._dictionaryImporterMediaLoader = new DictionaryImporterMediaLoader();
}
importDictionary(archiveContent, details, onProgress) {
return this._invoke('importDictionary', {details, archiveContent}, [archiveContent], onProgress);
}
// Private
_invoke(action, params, transfer, onProgress) {
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
};
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} = details;
details.complete = true;
details.worker = null;
details.resolve = null;
details.reject = null;
details.onMessage = null;
worker.removeEventListener('message', onMessage);
worker.terminate();
this._onMessageComplete(params, resolve, reject);
}
break;
case 'progress':
this._onMessageProgress(params, details.onProgress);
break;
case 'getImageResolution':
this._onMessageGetImageResolution(params, details.worker);
break;
}
}
_onMessageComplete(params, resolve, reject) {
const {error} = params;
if (typeof error !== 'undefined') {
reject(deserializeError(error));
} else {
resolve(this._formatResult(params.result));
}
}
_onMessageProgress(params, onProgress) {
if (typeof onProgress !== 'function') { return; }
const {args} = params;
onProgress(...args);
}
async _onMessageGetImageResolution(params, worker) {
const {id, mediaType, content} = params;
let response;
try {
const result = await this._dictionaryImporterMediaLoader.getImageResolution(mediaType, content);
response = {id, result};
} catch (e) {
response = {id, error: serializeError(e)};
}
worker.postMessage({action: 'getImageResolution.response', params: response});
}
_formatResult(data) {
const {result, errors} = data;
const errors2 = errors.map((error) => deserializeError(error));
return {result, errors: errors2};
}
}
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