implement html5 web notification support chrome Safari

webnotification.js

;(function (window) {
  "use strict";
  void function () {
    var  notify= null, i = -1, EVENT_TYPE = {show: 1, error: 1, close: 1, click: 1}, DesktopNotify = {isSupport: function () {
      return "Notification" in window || "webkitNotifications" in window
    }, show: function (e, i, n) {
      notify = this.create(e, i, n), notify.show()
    }, showHTML: function (e) {
      notify = this.createHTML(e), notify.show()
    }, hide: function (callback) {
      notify && notify.close && t.close(), callback && callback()
    }, destroy: function () {
      notify = null, i = -1
    }, checkPermission: function () {
      return i = webkitNotifications.checkPermission()
    }, isPermitted: function () {
      return 0 === this.checkPermission()
    }, requestPermission: function (e) {
      this.isPermitted() ? e && e() : webkitNotifications.requestPermission(e)
    }, create: function (e, t, i) {
      return webkitNotifications.createNotification(e, t, i)
    }, createHTML: function (e) {
      return webkitNotifications.createHTMLNotification(e)
    }, on: function (e, callback) {
      EVENT_TYPE[e] && notify && notify.addEventListener(e, callback, !1)
    }, un: function (e, callback) {
      EVENT_TYPE[e] && notify && notify.removeEventListener(e, callback, !1)
    }};
    window || (window = {}), window.DesktopNotify = DesktopNotify
  }()
})(window);