GitHub Title Notification

A userscript that changes the document title if there are unread messages
Mint 2016.03.29.. Lásd a legutóbbi verzió
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// ==UserScript==
// @name          GitHub Title Notification
// @version       1.0.0
// @description   A userscript that changes the document title if there are unread messages
// @license       https://creativecommons.org/licenses/by-sa/4.0/
// @namespace     http://github.com/Mottie
// @include       https://github.com/*
// @run-at        document-idle
// @grant         GM_registerMenuCommand
// @grant         GM_getValue
// @grant         GM_setValue
// @author        Rob Garrison
// ==/UserScript==
(function() {
  "use strict";

  var timer,
  // indicator added to document title (it will be wrapped in parentheses)
  indicator = GM_getValue("indicator", "♥"),
  // check every 30 seconds
  interval = GM_getValue("interval", 30),

  hasClass = function(el, name) {
    if (el) {
      return el.classList ? el.classList.contains(name) : new RegExp("\\b" + name + "\\b").test(el.className);
    }
    return false;
  },
  check = function() {
    var title = document.title,
      hasUnread = hasClass(document.querySelector(".mail-status"), "unread");
    //
    if (!/^\(\d+\)/.test(title)) {
      title = title.replace(/^\([^)]+\)\s/, "");
    }
    document.title = hasUnread ? "(" + indicator + ") " + title : title;
  },
  setTimer = function() {
    clearInterval(timer);
    if (document.querySelector(".mail-status")) {
      timer = setInterval(function() {
        check();
      }, interval * 1000);
      check();
    }
  };

  // Add GM options
  GM_registerMenuCommand("Set GitHub Title Notification Indicator", function() {
    indicator = prompt("Indicator Value (it will be wrapped in parentheses)?", indicator);
    GM_setValue("indicator", indicator);
    check();
  });
  GM_registerMenuCommand("Set GitHub Title Notification Interval", function() {
    interval = prompt("Interval Value (in seconds)?", interval);
    GM_setValue("interval", interval);
    setTimer();
  });

  setTimer();

})();