app.js

const { app, BrowserWindow, Menu } = require('electron');
const shell = require('electron').shell;

// Set env
process.env.NODE_ENV = 'production';

const isDev = process.env.NODE_ENV !== 'production' ? true : false;
const isMac = process.platform === 'darwin' ? true : false;

let mainWindow;

function createMainWindow() {
  mainWindow = new BrowserWindow({
    title: 'OfflinePassGen',
    width: isDev ? 360 : 360,
    height: 600,
    icon: `${__dirname}/assets/icons/icon.png`,
    resizable: true,
    webPreferences: {
      nodeIntegration: false,
    },
  });

  if (isDev) {
    mainWindow.webContents.openDevTools();
  }

  mainWindow.webContents.on('new-window', function (e, url) {
    e.preventDefault();
    shell.openExternal(url);
  });

  mainWindow.loadFile('./dist/index.html');
}

app.on('ready', () => {
  createMainWindow();

  const mainMenu = Menu.buildFromTemplate(menu);
  Menu.setApplicationMenu(mainMenu);
});

const menu = [
  ...(isDev
    ? [
        {
          label: 'Developer',
          submenu: [
            { role: 'reload' },
            { role: 'forcereload' },
            { type: 'separator' },
            { role: 'toggledevtools' },
          ],
        },
      ]
    : []),
];

app.on('window-all-closed', () => {
  if (!isMac) {
    app.quit();
  }
});

app.on('activate', () => {
  if (BrowserWindow.getAllWindows().length === 0) {
    createMainWindow();
  }
});

app.allowRendererProcessReuse = true;