avenoel toolkit

// ==UserScript==
// @name        avenoel-toolkit
// @namespace   avnt
// @description toolbar for scroll to top, to bottom, and others later
// @include     https://avenoel.org/*
// @version     1.01
// @grant       none
// @require     https://cdnjs.cloudflare.com/ajax/libs/zepto/1.1.6/zepto.min.js
// ==/UserScript==

"use strict";

$(document).ready(function () {

  var avnt = {
    addToolBar : function () {
      if ($('#backtotop').length == 0) {
        let gototop_l = "<li class=\'gototop\'><a href='#top'><span class='glyphicon glyphicon-arrow-up'></span></a></li>";
        let gotobottom_l = "<li class=\'gotobottom\'><a href='#bottom'><span class='glyphicon glyphicon-arrow-down'></span></a></li>";
        let gototop_sm = "<li class=\'gototop\'><a href='#top'><span class='glyphicon glyphicon-arrow-up'></span></a></li>";
        let gotobottom_sm = "<li class=\'gotobottom\'><a href='#bottom'><span class='glyphicon glyphicon-arrow-down'></span></a></li>";

        $(".navbar-user li:first-of-type").after(gototop_l);
        $(".navbar-user li:first-of-type").after(gotobottom_l);

        $(".bottombar li:first-of-type").after(gototop_sm);
        $(".bottombar li:first-of-type").after(gotobottom_sm);

      }
    },

    createEventListener : function () {
      $(".avnt .gototop").on('click touchstart', function (e) {
        e.stopPropagation();
        document.body.scrollTop = document.documentElement.scrollTop = 0;
      });
      $(".avnt .gotobottom").on('click touchstart', function (e) {
        e.stopPropagation();
        window.scrollTo(0, document.body.scrollHeight);
      });
    },

    init : function() {
      $("body").addClass("avnt");
      var host = window.location.host;
      switch(host) {
        case "avenoel.org":
        default:
          this.addToolBar();
          this.createEventListener();
          break;
      }
    }
  };

  avnt.init();
});