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/*
* 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 {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 {
/**
* @param {OffscreenProxy} offscreen
*/
constructor(offscreen) {
/** @type {?import('environment').Browser} */
this._browser = null;
/** @type {OffscreenProxy} */
this._offscreen = offscreen;
}
/** @type {?import('environment').Browser} */
get browser() { return this._browser; }
set browser(value) {
if (this._browser === value) { return; }
this._browser = value;
this._offscreen.sendMessagePromise({action: 'clipboardSetBrowserOffsecreen', params: {value}});
}
/**
* @param {boolean} useRichText
* @returns {Promise<string>}
*/
async getText(useRichText) {
return await this._offscreen.sendMessagePromise({action: 'clipboardGetTextOffscreen', params: {useRichText}});
}
/**
* @returns {Promise<?string>}
*/
async getImage() {
return await this._offscreen.sendMessagePromise({action: 'clipboardGetImageOffscreen'});
}
}
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