106 lines
3.0 KiB
JavaScript
106 lines
3.0 KiB
JavaScript
/*
|
|
* Copyright (C) 2020-2022 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/>.
|
|
*/
|
|
|
|
class Environment {
|
|
constructor() {
|
|
this._cachedEnvironmentInfo = null;
|
|
}
|
|
|
|
async prepare() {
|
|
this._cachedEnvironmentInfo = await this._loadEnvironmentInfo();
|
|
}
|
|
|
|
getInfo() {
|
|
if (this._cachedEnvironmentInfo === null) { throw new Error('Not prepared'); }
|
|
return this._cachedEnvironmentInfo;
|
|
}
|
|
|
|
async _loadEnvironmentInfo() {
|
|
const browser = await this._getBrowser();
|
|
const os = await this._getOperatingSystem();
|
|
return {
|
|
browser,
|
|
platform: {os}
|
|
};
|
|
}
|
|
|
|
async _getOperatingSystem() {
|
|
try {
|
|
const {os} = await this._getPlatformInfo();
|
|
if (typeof os === 'string') {
|
|
return os;
|
|
}
|
|
} catch (e) {
|
|
// NOP
|
|
}
|
|
return 'unknown';
|
|
}
|
|
|
|
_getPlatformInfo() {
|
|
return new Promise((resolve, reject) => {
|
|
chrome.runtime.getPlatformInfo((result) => {
|
|
const error = chrome.runtime.lastError;
|
|
if (error) {
|
|
reject(error);
|
|
} else {
|
|
resolve(result);
|
|
}
|
|
});
|
|
});
|
|
}
|
|
|
|
async _getBrowser() {
|
|
try {
|
|
if (chrome.runtime.getURL('/').startsWith('ms-browser-extension://')) {
|
|
return 'edge-legacy';
|
|
}
|
|
if (/\bEdge?\//.test(navigator.userAgent)) {
|
|
return 'edge';
|
|
}
|
|
} catch (e) {
|
|
// NOP
|
|
}
|
|
if (typeof browser !== 'undefined') {
|
|
try {
|
|
const info = await browser.runtime.getBrowserInfo();
|
|
if (info.name === 'Fennec') {
|
|
return 'firefox-mobile';
|
|
}
|
|
} catch (e) {
|
|
// NOP
|
|
}
|
|
if (this._isSafari()) {
|
|
return 'safari';
|
|
}
|
|
return 'firefox';
|
|
} else {
|
|
return 'chrome';
|
|
}
|
|
}
|
|
|
|
_isSafari() {
|
|
const {vendor, userAgent} = navigator;
|
|
return (
|
|
typeof vendor === 'string' &&
|
|
typeof userAgent === 'string' &&
|
|
vendor.includes('Apple') &&
|
|
!userAgent.includes('CriOS') &&
|
|
!userAgent.includes('FxiOS')
|
|
);
|
|
}
|
|
}
|