main.js

const path = require('path');
let menubar = require('menubar');

let mb = menubar();
mb.setOption('icon', path.join(__dirname, 'iconTemplate.png'));
mb.on('ready', function ready() { // eslint-disable-line func-names

	const electron = require('electron');
		// Module to control application life.

	const {
		app
	} = electron;
	// Module to create native browser window.
	const {BrowserWindow} = electron;
	// Keep a global reference of the window object, if you don't, the window will
	// be closed automatically when the JavaScript object is garbage collected.
	let win = BrowserWindow; // BrowserWindow in which to show the dialog

	const {width, height} = electron.screen.getPrimaryDisplay().workAreaSize

	mb.setOption('width', 900);
	mb.setOption('height', 800);
	mb.setOption('preload-window', 'true');
	mb.showWindow();

	function createWindow() {


		// Create the browser window.
		win = new BrowserWindow({
			width: 300,
			height: 600
		});
			// and load the index.html of the app.
		win.loadURL(`file://${__dirname}/index.html`);
			// Open the DevTools.
			// win.webContents.openDevTools()
			// Emitted when the window is closed.
		win.on('closed', () => {
			// 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.
			win = null;
		});

	}
	// 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.
	app.on('window-all-closed', () => {
		// 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') {
			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 (win === null) {
			createWindow();
		}

		win.webContents.openDevTools();
	});
		// 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 require them here.
});