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uBlock/platform/mv3/extension/js/ext.js

120 lines
4.1 KiB
JavaScript

/*******************************************************************************
uBlock Origin Lite - a comprehensive, MV3-compliant content blocker
Copyright (C) 2022-present Raymond Hill
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/}.
Home: https://github.com/gorhill/uBlock
*/
/* jshint esversion:11 */
'use strict';
/******************************************************************************/
export const browser =
self.browser instanceof Object &&
self.browser instanceof Element === false
? self.browser
: self.chrome;
export const dnr = browser.declarativeNetRequest;
export const i18n = browser.i18n;
export const runtime = browser.runtime;
/******************************************************************************/
// The extension's service worker can be evicted at any time, so when we
// send a message, we try a few more times when the message fails to be sent.
export function sendMessage(msg) {
return new Promise((resolve, reject) => {
let i = 5;
const send = ( ) => {
runtime.sendMessage(msg).then(response => {
resolve(response);
}).catch(reason => {
i -= 1;
if ( i <= 0 ) {
reject(reason);
} else {
setTimeout(send, 200);
}
});
};
send();
});
}
/******************************************************************************/
export async function localRead(key) {
if ( browser.storage instanceof Object === false ) { return; }
if ( browser.storage.local instanceof Object === false ) { return; }
try {
const bin = await browser.storage.local.get(key);
if ( bin instanceof Object === false ) { return; }
return bin[key] ?? undefined;
} catch(ex) {
}
}
export async function localWrite(key, value) {
if ( browser.storage instanceof Object === false ) { return; }
if ( browser.storage.local instanceof Object === false ) { return; }
return browser.storage.local.set({ [key]: value });
}
export async function localRemove(key) {
if ( browser.storage instanceof Object === false ) { return; }
if ( browser.storage.local instanceof Object === false ) { return; }
return browser.storage.local.remove(key);
}
/******************************************************************************/
export async function sessionRead(key) {
if ( browser.storage instanceof Object === false ) { return; }
if ( browser.storage.session instanceof Object === false ) { return; }
try {
const bin = await browser.storage.session.get(key);
if ( bin instanceof Object === false ) { return; }
return bin[key] ?? undefined;
} catch(ex) {
}
}
export async function sessionWrite(key, value) {
if ( browser.storage instanceof Object === false ) { return; }
if ( browser.storage.session instanceof Object === false ) { return; }
return browser.storage.session.set({ [key]: value });
}
/******************************************************************************/
export async function adminRead(key) {
if ( browser.storage instanceof Object === false ) { return; }
if ( browser.storage.local instanceof Object === false ) { return; }
try {
const bin = await browser.storage.managed.get(key);
if ( bin instanceof Object === false ) { return; }
return bin[key] ?? undefined;
} catch(ex) {
}
}
/******************************************************************************/