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-rw-r--r--ext/js/background/environment.js105
1 files changed, 0 insertions, 105 deletions
diff --git a/ext/js/background/environment.js b/ext/js/background/environment.js
deleted file mode 100644
index d9ca502c..00000000
--- a/ext/js/background/environment.js
+++ /dev/null
@@ -1,105 +0,0 @@
-/*
- * 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')
- );
- }
-}