const {app, BrowserWindow} = require('electron')
const path = require('path')

let window

app.once('ready', () => {
  window = new BrowserWindow({
    webPreferences: {
      contextIsolation: true,
      preload: path.join(__dirname, 'preload.js')
    }
  })
  window.loadURL(`file://${__dirname}/index.html`)
})

const {shell, webFrame} = require('electron')
const path = require('path')

// Set a variable in the page before it loads
webFrame.executeJavaScript('window.foo = "foo";')

// The loaded page will not be able to access this, it is only available
// in this context
window.bar = 'bar'

document.addEventListener('DOMContentLoaded', () => {
  // Will log out 'undefined' since window.foo is only available in the main
  // context
  console.log(window.foo)

  // Will log out 'bar' since window.bar is available in this context
  console.log(window.bar)

  document.body.addEventListener('click', (event) => {
    // Open clicked links externally
    if (event.target.tagName === 'A') {
      shell.openExternal(event.target.href)
      event.preventDefault()
    }
  })
})

window.addEventListener('message', (event) => {
  // Beep when the page requests it
  if (event.data === 'beep') {
    shell.beep()
  }
})