electron/spec-main/fixtures/extensions/chrome-runtime/main.js

/* eslint-disable */

function evalInMainWorld(fn) {
  const script = document.createElement('script')
  script.textContent = `((${fn})())`
  document.documentElement.appendChild(script)
}

async function exec(name) {
  let result
  switch (name) {
    case 'getManifest':
      result = chrome.runtime.getManifest()
      break
    case 'id':
      result = chrome.runtime.id
      break
    case 'getURL':
      result = chrome.runtime.getURL('main.js')
      break
    case 'getPlatformInfo': {
      result = await new Promise(resolve => {
        chrome.runtime.sendMessage(name, resolve)
      })
      break
    }
  }

  const funcStr = `() => { require('electron').ipcRenderer.send('success', ${JSON.stringify(result)}) }`
  evalInMainWorld(funcStr)
}

window.addEventListener('message', event => {
  exec(event.data.name)
})

evalInMainWorld(() => {
  window.exec = name => window.postMessage({ name })
})