main.js

// Modules to control application life and create native browser window
const { app, BrowserWindow } = require('electron')
const Menu = require('electron').Menu
const path = require('path')

// 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 mainWindow

function createWindow() {
    // Create the browser window.

    mainWindow = new BrowserWindow({
        width: 1024,
        height: 768,
        webPreferences: { nodeIntegration: false },
        icon: path.join(__dirname, 'assets/icons/png/64x64.png')
    })

    // and load the index.html of the app.
    mainWindow.loadURL('https://dashboard.example.com')

    // Open the DevTools.
    // mainWindow.webContents.openDevTools()

    // 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
    })
}

function createMenu() {
    const application = {
        //label: "Application",
        label: "File",
        submenu: [
            {
                label: "About MyApp: Desktop",
                selector: "orderFrontStandardAboutPanel:"
            },
            {
                type: "separator"
            },
            {
                label: "Sair",
                accelerator: "CmdOrCtrl+Q",
                click: () => {
                    app.quit()
                }
            }
        ]
    }

    const edit = {
        label: "Edit",
        submenu: [
            {
                label: "Undo",
                accelerator: "CmdOrCtrl+Z",
                selector: "undo:"
            },
            {
                label: "Redo",
                accelerator: "Shift+CmdOrCtrl+Z",
                selector: "redo:"
            },
            {
                type: "separator"
            },
            {
                label: "Cut",
                accelerator: "CmdOrCtrl+X",
                selector: "cut:"
            },
            {
                label: "Copy",
                accelerator: "CmdOrCtrl+C",
                selector: "copy:"
            },
            {
                label: "Paste",
                accelerator: "CmdOrCtrl+V",
                selector: "paste:"
            },
            {
                label: "Select All",
                accelerator: "CmdOrCtrl+A",
                selector: "selectAll:"
            }
        ]
    }

    const template = [
        application,
        edit
    ]

    Menu.setApplicationMenu(Menu.buildFromTemplate(template))
}

// 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()
    createMenu()
  })


// Quit when all windows are closed.
app.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') {
        app.quit()
    }
})

app.on('activate', function () {
    // 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 (mainWindow === null) {
        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 require them here.