electron.js

var electronApp = require('electron').app;  // Module to control application life.
var BrowserWindow = require('electron').BrowserWindow;  // Module to create native browser window.
var globalShortcut = require('electron').globalShortcut;

var mainWindow = null;
electronApp.on('window-all-closed', function() {
  // On OS X it is common for applications and their menu bar
  // to stay active until the user quits explicitly with Cmd + Q
  if (process.platform != 'darwin') {
    electronApp.quit();
  }
});

// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
electronApp.on('ready', function() {
  // Create the browser window.
  mainWindow = new BrowserWindow({
    width: 800,
    height: 600,
    webPreferences: {
      nodeIntegration: false,
    },
  });

  // disable the menu entirely
  mainWindow.setMenu(null);

  // set the config directory in the users applicatin settings location
  process.env.configDir = electronApp.getPath('userData');

  // let the app know via an env variable we are running electron
  process.env.ELECTRON_ENABLED = true;

  // init the server
  var app = require(__dirname + '/app.js');

  // and load the music player page on the server
  mainWindow.loadURL('http://localhost:' + app.get('port') + '/');

  // show the dev tool
  if (process.env.DEVTOOLS) {
    mainWindow.toggleDevTools();
  }

  // attach the keyboard shortucts
  globalShortcut.register('MediaPlayPause', function() { app.io.sockets.emit('command', {command: 'playpause'}); });
  globalShortcut.register('MediaNextTrack', function() { app.io.sockets.emit('command', {command: 'next'}); });
  globalShortcut.register('MediaPreviousTrack', function() { app.io.sockets.emit('command', {command: 'prev'}); });

  // Emitted when the window is closed.
  mainWindow.on('closed', function() {
    // Dereference the window object, usually you would store windows
    // in an array if your app supports multi windows, this is the time
    // when you should delete the corresponding element.
    mainWindow = null;
  });
});