ora/src/client/reporter.js

import browser from 'webextension-polyfill'

let lastReported = 0

function logActivity() {
  const now = Date.now()
  // Limit reports to once every second
  if (now - lastReported < 1000) return
  lastReported = now
  browser.runtime.sendMessage({
    type: 'report',
  })
}

export function init() {
  window.document.addEventListener('mousemove', logActivity, false)
  window.document.addEventListener('keydown', logActivity, false)
  window.document.addEventListener('scroll', logActivity, false)
}