index.js

const { app, BrowserWindow, Menu, Tray, nativeImage } = require('electron');
const path = require('path');

// Handle creating/removing shortcuts on Windows when installing/uninstalling.
if (require('electron-squirrel-startup')) {
  // eslint-disable-line global-require
  app.quit();
}

const createWindow = () => {

  let icon = nativeImage.createFromPath(path.join(__dirname, 'images/rfparty-white-256.png')).resize({width:32, height:32})

  // Create the browser window.
  const mainWindow = new BrowserWindow({
    width: 800,
    height: 600,
    icon: icon
  });

  // and load the index.html of the app.
  mainWindow.loadFile(path.join(__dirname, 'dist/index.html'));
  //mainWindow.loadURL(`file://${__dirname}/dist/index.html`)

  mainWindow.setMenuBarVisibility(false);

  // Open the DevTools.
  mainWindow.webContents.closeDevTools();



  const tray = new Tray(icon)
  const contextMenu = Menu.buildFromTemplate([
    { label: 'Monitor', type: 'checkbox', checked: true, click: ()=>{console.log('clicked-radio')} },
    { type: 'separator' },
    { role: 'Quit' },
  ])

  tray.setToolTip('rfparty')
  tray.setContextMenu(contextMenu)

};

// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
// Some APIs can only be used after this event occurs.
app.on('ready', createWindow);

// Quit when all windows are closed, except on macOS. There, it's common
// for applications and their menu bar to stay active until the user quits
// explicitly with Cmd + Q.
app.on('window-all-closed', () => {
  if (process.platform !== 'darwin') {
    //app.quit();
  }
});

app.on('activate', () => {
  // On OS X it's common to re-create a window in the app when the
  // dock icon is clicked and there are no other windows open.
  if (BrowserWindow.getAllWindows().length === 0) {
    createWindow();
  }
});

// In this file you can include the rest of your app's specific main process
// code. You can also put them in separate files and import them here.