electron/spec/fixtures/api/mixed-sandbox-app/main.js

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

process.on('uncaughtException', () => {
  app.exit(1)
})

if (!process.argv.includes('--enable-mixed-sandbox')) {
  app.enableMixedSandbox()
}

let currentWindowSandboxed = false

app.once('ready', () => {
  function testWindow (isSandboxed, callback) {
    currentWindowSandboxed = isSandboxed
    let currentWindow = new BrowserWindow({
      show: false,
      webPreferences: {
        preload: path.join(__dirname, 'electron-app-mixed-sandbox-preload.js'),
        sandbox: isSandboxed
      }
    })
    currentWindow.loadURL('about:blank')
    currentWindow.webContents.once('devtools-opened', () => {
      if (isSandboxed) {
        argv.sandboxDevtools = true
      } else {
        argv.noSandboxDevtools = true
      }
      if (callback) {
        callback()
      }
      finish()
    })
    currentWindow.webContents.openDevTools()
  }

  const argv = {
    sandbox: null,
    noSandbox: null,
    sandboxDevtools: null,
    noSandboxDevtools: null
  }

  let connected = false

  testWindow(true, () => {
    testWindow()
  })

  function finish () {
    if (connected && argv.sandbox != null && argv.noSandbox != null &&
        argv.noSandboxDevtools != null && argv.sandboxDevtools != null) {
      client.once('end', () => {
        app.exit(0)
      })
      client.end(JSON.stringify(argv))
    }
  }

  const socketPath = process.platform === 'win32' ? '\\\\.\\pipe\\electron-mixed-sandbox' : '/tmp/electron-mixed-sandbox'
  const client = net.connect(socketPath, () => {
    connected = true
    finish()
  })

  ipcMain.on('argv', (event, value) => {
    if (currentWindowSandboxed) {
      argv.sandbox = value
    } else {
      argv.noSandbox = value
    }
    finish()
  })
})