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// @flow
import path from 'path';
import fs from 'fs';
import log from 'electron-log';
import { app, BrowserWindow, ipcMain, Tray, Menu, nativeImage } from 'electron';
import TrayIconManager from './lib/tray-icon-manager';
import type { TrayIconType } from './lib/tray-icon-manager';
const isDevelopment = (process.env.NODE_ENV === 'development');
const isMacOS = (process.platform === 'darwin');
const appDelegate = {
_window: (null: ?BrowserWindow),
_tray: (null: ?Tray),
setup: () => {
// Override appData path to avoid collisions with old client
// New userData path, i.e on macOS: ~/Library/Application Support/mullvad.vpn
app.setPath('userData', path.join(app.getPath('appData'), 'mullvad.vpn'));
if (isDevelopment) {
log.transports.console.level = 'debug';
// Disable log file in development
log.transports.file.level = false;
} else {
log.transports.console.level = 'info';
log.transports.file.level = 'info';
}
app.on('window-all-closed', () => appDelegate.onAllWindowsClosed());
app.on('ready', () => appDelegate.onReady());
},
onReady: async () => {
const window = appDelegate._window = appDelegate._createWindow();
ipcMain.on('on-browser-window-ready', () => appDelegate._sendBackendInfo(window));
window.loadURL('file://' + path.join(__dirname, 'index.html'));
// create tray icon on macOS
if(isMacOS) {
appDelegate._tray = appDelegate._createTray(window);
}
appDelegate._setAppMenu();
appDelegate._addContextMenu(window);
if(isDevelopment) {
await appDelegate._installDevTools();
window.openDevTools({ mode: 'detach' });
}
},
onAllWindowsClosed: () => {
app.quit();
},
_sendBackendInfo: (window: BrowserWindow) => {
const file = './.mullvad_rpc_address';
log.info('reading the ipc connection info from', file);
fs.readFile(file, 'utf8', function (err,data) {
if (err) {
return log.info('Could not find backend connection info', err);
}
log.info('Read IPC connection info', data);
window.webContents.send('backend-info', {
addr: data,
});
});
},
_installDevTools: async () => {
const installer = require('electron-devtools-installer');
const extensions = ['REACT_DEVELOPER_TOOLS', 'REDUX_DEVTOOLS'];
const forceDownload = !!process.env.UPGRADE_EXTENSIONS;
for(const name of extensions) {
try {
await installer.default(installer[name], forceDownload);
} catch (e) {
log.info(`Error installing ${name} extension: ${e.message}`);
}
}
},
_createWindow: (): BrowserWindow => {
const contentHeight = 568;
let options = {
width: 320,
height: contentHeight,
resizable: false,
maximizable: false,
fullscreenable: false,
webPreferences: {
// prevents renderer process code from not running when window is hidden
backgroundThrottling: false,
// Enable experimental features
blinkFeatures: 'CSSBackdropFilter'
}
};
// setup window flags to mimic popover on macOS
if(isMacOS) {
options = Object.assign({}, options, {
height: contentHeight + 12, // 12 is the size of transparent area around arrow
frame: false,
transparent: true,
show: false
});
}
return new BrowserWindow(options);
},
_setAppMenu: () => {
const template = [
{
label: 'Mullvad',
submenu: [
{ role: 'about' },
{ type: 'separator' },
{ role: 'quit' }
]
},
{
label: 'Edit',
submenu: [
{ role: 'cut' },
{ role: 'copy' },
{ role: 'paste' },
{ type: 'separator' },
{ role: 'selectall' }
]
}
];
Menu.setApplicationMenu(Menu.buildFromTemplate(template));
},
_addContextMenu: (window: BrowserWindow) => {
let menuTemplate = [
{ role: 'cut' },
{ role: 'copy' },
{ role: 'paste' },
{ type: 'separator' },
{ role: 'selectall' }
];
// add inspect element on right click menu
window.webContents.on('context-menu', (_e: Event, props: { x: number, y: number }) => {
let inspectTemplate = [{
label: 'Inspect element',
click() {
window.openDevTools({ mode: 'detach' });
window.inspectElement(props.x, props.y);
}
}];
if(props.isEditable) {
let inputMenu = menuTemplate;
// mixin 'inspect element' into standard menu when in development mode
if(isDevelopment) {
inputMenu = menuTemplate.concat([{type: 'separator'}], inspectTemplate);
}
Menu.buildFromTemplate(inputMenu).popup(window);
} else if(isDevelopment) {
// display inspect element for all non-editable
// elements when in development mode
Menu.buildFromTemplate(inspectTemplate).popup(window);
}
});
},
_toggleWindow: (window: BrowserWindow, tray: ?Tray) => {
if(window.isVisible()) {
window.hide();
} else {
appDelegate._showWindow(window, tray);
}
},
_showWindow: (window: BrowserWindow, tray: ?Tray) => {
// position window based on tray icon location
if(tray) {
const { x, y } = appDelegate._getWindowPosition(window, tray);
window.setPosition(x, y, false);
}
window.show();
window.focus();
},
_getWindowPosition: (window: BrowserWindow, tray: Tray): { x: number, y: number } => {
const windowBounds = window.getBounds();
const trayBounds = tray.getBounds();
// center window horizontally below the tray icon
const x = Math.round(trayBounds.x + (trayBounds.width / 2) - (windowBounds.width / 2));
// position window vertically below the tray icon
const y = Math.round(trayBounds.y + trayBounds.height);
return { x, y };
},
_createTray: (window: BrowserWindow): Tray => {
const tray = new Tray(nativeImage.createEmpty());
tray.setHighlightMode('never');
tray.on('click', () => appDelegate._toggleWindow(window, tray));
// setup NSEvent monitor to fix inconsistent window.blur
// see https://github.com/electron/electron/issues/8689
const { NSEventMonitor, NSEventMask } = require('nseventmonitor');
const trayIconManager = new TrayIconManager(tray, 'unsecured');
const macEventMonitor = new NSEventMonitor();
const eventMask = NSEventMask.leftMouseDown | NSEventMask.rightMouseDown;
// add IPC handler to change tray icon from renderer
ipcMain.on('changeTrayIcon', (_: Event, type: TrayIconType) => trayIconManager.iconType = type);
// setup event handlers
window.on('show', () => macEventMonitor.start(eventMask, () => window.hide()));
window.on('hide', () => macEventMonitor.stop());
window.on('close', () => window.closeDevTools());
window.on('blur', () => !window.isDevToolsOpened() && window.hide());
return tray;
}
};
appDelegate.setup();
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