app.js

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 mainWindow;

function createWindow() {
    // Create the browser window.
    mainWindow = new BrowserWindow({width: 1280, height: 720, title: "Dialogger"});

    // Clear the menu so the main menu can load.
    mainWindow.setMenu(null);

    // And load the index.html of the app.
    mainWindow.loadURL(`file://${__dirname}/index.html`);

    // Emitted when the window is closed.
    mainWindow.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.
        mainWindow = 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 macOS 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 macOs 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.

// Here's a handy article that helps explain the whole process of building an app:
// https://medium.com/developers-writing/building-a-desktop-application-with-electron-204203eeb658