/* * Copyright (C) 2023 Yomitan Authors * Copyright (C) 2016-2022 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/>. */ import {deserializeError, isObject} from '../core.js'; import {ArrayBufferUtil} from '../data/sandbox/array-buffer-util.js'; export class OffscreenProxy { constructor() { this._creatingOffscreen = null; } // https://developer.chrome.com/docs/extensions/reference/offscreen/ async prepare() { if (await this._hasOffscreenDocument()) { return; } if (this._creatingOffscreen) { await this._creatingOffscreen; return; } this._creatingOffscreen = chrome.offscreen.createDocument({ url: 'offscreen.html', reasons: ['CLIPBOARD'], justification: 'Access to the clipboard' }); await this._creatingOffscreen; this._creatingOffscreen = null; } async _hasOffscreenDocument() { const offscreenUrl = chrome.runtime.getURL('offscreen.html'); if (!chrome.runtime.getContexts) { // chrome version <116 const matchedClients = await clients.matchAll(); return await matchedClients.some((client) => client.url === offscreenUrl); } const contexts = await chrome.runtime.getContexts({ contextTypes: ['OFFSCREEN_DOCUMENT'], documentUrls: [offscreenUrl] }); return !!contexts.length; } sendMessagePromise(...args) { return new Promise((resolve, reject) => { const callback = (response) => { try { resolve(this._getMessageResponseResult(response)); } catch (error) { reject(error); } }; chrome.runtime.sendMessage(...args, callback); }); } _getMessageResponseResult(response) { let error = chrome.runtime.lastError; if (error) { throw new Error(error.message); } if (!isObject(response)) { throw new Error('Offscreen document did not respond'); } error = response.error; if (error) { throw deserializeError(error); } return response.result; } } export class DictionaryDatabaseProxy { constructor(offscreen) { this._offscreen = offscreen; } prepare() { return this._offscreen.sendMessagePromise({action: 'databasePrepareOffscreen'}); } getDictionaryInfo() { return this._offscreen.sendMessagePromise({action: 'getDictionaryInfoOffscreen'}); } purge() { return this._offscreen.sendMessagePromise({action: 'databasePurgeOffscreen'}); } async getMedia(targets) { const serializedMedia = await this._offscreen.sendMessagePromise({action: 'databaseGetMediaOffscreen', params: {targets}}); const media = serializedMedia.map((m) => ({...m, content: ArrayBufferUtil.base64ToArrayBuffer(m.content)})); return media; } } export class TranslatorProxy { constructor(offscreen) { this._offscreen = offscreen; } prepare(deinflectionReasons) { return this._offscreen.sendMessagePromise({action: 'translatorPrepareOffscreen', params: {deinflectionReasons}}); } async findKanji(text, findKanjiOptions) { const enabledDictionaryMapList = [...findKanjiOptions.enabledDictionaryMap]; const modifiedKanjiOptions = { ...findKanjiOptions, enabledDictionaryMap: enabledDictionaryMapList }; return this._offscreen.sendMessagePromise({action: 'findKanjiOffscreen', params: {text, findKanjiOptions: modifiedKanjiOptions}}); } async findTerms(mode, text, findTermsOptions) { const {enabledDictionaryMap, excludeDictionaryDefinitions, textReplacements} = findTermsOptions; const enabledDictionaryMapList = [...enabledDictionaryMap]; const excludeDictionaryDefinitionsList = excludeDictionaryDefinitions ? [...excludeDictionaryDefinitions] : null; const textReplacementsSerialized = textReplacements.map((group) => { if (!group) { return group; } return group.map((opt) => ({...opt, pattern: opt.pattern.toString()})); }); const modifiedFindTermsOptions = { ...findTermsOptions, enabledDictionaryMap: enabledDictionaryMapList, excludeDictionaryDefinitions: excludeDictionaryDefinitionsList, textReplacements: textReplacementsSerialized }; return this._offscreen.sendMessagePromise({action: 'findTermsOffscreen', params: {mode, text, findTermsOptions: modifiedFindTermsOptions}}); } async getTermFrequencies(termReadingList, dictionaries) { return this._offscreen.sendMessagePromise({action: 'getTermFrequenciesOffscreen', params: {termReadingList, dictionaries}}); } clearDatabaseCaches() { return this._offscreen.sendMessagePromise({action: 'clearDatabaseCachesOffscreen'}); } } export class ClipboardReaderProxy { constructor(offscreen) { this._offscreen = offscreen; } async getText(useRichText) { return this._offscreen.sendMessagePromise({action: 'clipboardGetTextOffscreen', params: {useRichText}}); } async getImage() { return this._offscreen.sendMessagePromise({action: 'clipboardGetImageOffscreen'}); } }