main.js

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

function createWindow () {
  // Create the main window.
  const mainWindow = new BrowserWindow({
    width: 800,
    height: 600,
    autoHideMenuBar: true,
    titleBarStyle: 'customButtonsOnHover',
    title: 'Kitsu! Desktop',
    backgroundColor: '#FFF',
    icon: 'images/logo.png',
    show: false,
    spellcheck: true, // Spell checker
    devTools: false, //⚠️ Disabled in stable
    webPreferences: {
      preload: path.join(__dirname, 'preload.js')
    }
  })

// Creating the loading screen

  let child = new BrowserWindow({
     parent: mainWindow,
     title: 'Loading...',
     width: 300,
     height: 350,
      modal: true,
       show: false,
      autoHideMenuBar: true,
      titleBarStyle: 'hidden',
      skipTaskbar: true,
      icon: 'images/logo.png',
      alwaysOnTop: true,
      frame: false,
       })

// Loading the screens

  mainWindow.loadURL('https://kitsu.io')
  child.loadFile('loading.html')

// Start the loading screen

  child.once('ready-to-show', () => {
    child.show()
  })

// Then disable it and pop out the main window

  mainWindow.once('ready-to-show', () => {
    mainWindow.show()
    child.hide()
  })



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

// 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.whenReady().then(() => {
  createWindow()
  
  app.on('activate', function () {
    // 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 (BrowserWindow.getAllWindows().length === 0) 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', function () {
  if (process.platform !== 'darwin') app.quit()
})

// 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.