yomichan/ext/bg/js/util.js

111 lines
3.0 KiB
JavaScript

/*
* Copyright (C) 2016-2017 Alex Yatskov <alex@foosoft.net>
* Author: Alex Yatskov <alex@foosoft.net>
*
* 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 <http://www.gnu.org/licenses/>.
*/
function utilAsync(func) {
return function(...args) {
func.apply(this, args);
};
}
function utilIsolate(data) {
return JSON.parse(JSON.stringify(data));
}
function utilSetEqual(setA, setB) {
if (setA.size !== setB.size) {
return false;
}
for (const value of setA) {
if (!setB.has(value)) {
return false;
}
}
return true;
}
function utilSetIntersection(setA, setB) {
return new Set(
[...setA].filter(value => setB.has(value))
);
}
function utilSetDifference(setA, setB) {
return new Set(
[...setA].filter(value => !setB.has(value))
);
}
function utilStringHashCode(string) {
let hashCode = 0;
for (let i = 0, charCode = string.charCodeAt(i); i < string.length; charCode = string.charCodeAt(++i)) {
hashCode = ((hashCode << 5) - hashCode) + charCode;
hashCode |= 0;
}
return hashCode;
}
function utilBackend() {
return chrome.extension.getBackgroundPage().yomichan_backend;
}
function utilAnkiGetModelNames() {
return utilBackend().anki.getModelNames();
}
function utilAnkiGetDeckNames() {
return utilBackend().anki.getDeckNames();
}
function utilDatabaseSummarize() {
return utilBackend().translator.database.summarize();
}
function utilAnkiGetModelFieldNames(modelName) {
return utilBackend().anki.getModelFieldNames(modelName);
}
function utilDatabasePurge() {
return utilBackend().translator.database.purge();
}
async function utilDatabaseImport(data, progress, exceptions) {
// Edge cannot read data on the background page due to the File object
// being created from a different window. Read on the same page instead.
if (EXTENSION_IS_BROWSER_EDGE) {
data = await utilReadFile(data);
}
return utilBackend().translator.database.importDictionary(data, progress, exceptions);
}
function utilReadFile(file) {
return new Promise((resolve, reject) => {
const reader = new FileReader();
reader.onload = () => resolve(reader.result);
reader.onerror = () => reject(reader.error);
reader.readAsBinaryString(file);
});
}
function utilIsObject(value) {
return typeof value === 'object' && value !== null && !Array.isArray(value);
}