zoro-cli/lib/plugins/config-web/template/src/util/dom/event.js

https://github.com/vuejs/vue-cli

import { logBlank, logWithName } from '../log'

export function stopPropagation(e) {
  e.stopPropagation()
}

export function preventDefault(e) {
  e.preventDefault()
}

export function preventDefaultSelf(e) {
  if (e && e.target === e.currentTarget) {
    e.preventDefault()
  }
}

export function on(node, eventType, cb, ...args) {
  node.addEventListener(eventType, cb, ...args)
}

export function off(node, eventType, cb, ...args) {
  node.removeEventListener(eventType, cb, ...args)
}

export function once(node, eventType, cb, ...args) {
  const _cb = e => {
    off(node, eventType, _cb)
    if (typeof cb === 'function') {
      cb(e)
    }
  }
  on(node, eventType, _cb, ...args)
}

function resume(func, cb) {
  if (typeof func === 'function') {
    func(document, 'resume', event => {
      logBlank()
      logWithName('onResume event', event)
      const data = (event && event.data) || {}
      logWithName('onResume data', data)
      if (typeof cb === 'function') {
        cb(data)
      }
    })
  }
}

export function onResume(cb) {
  if (cb) {
    return resume(on, cb)
  }
  return new Promise(resolve => {
    resume(on, resolve)
  })
}

export function onResumeOnce(cb) {
  if (cb) {
    return resume(once, cb)
  }
  return new Promise(resolve => {
    resume(once, resolve)
  })
}