All my hats are belong to me - zod

InstaSynchP-Anti-Hat-Stealer.user.js

// ==UserScript==
// @name        InstaSynchP Anti Hat Stealer
// @namespace   InstaSynchP
// @description All my hats are belong to me - zod

// @version     1.0.1
// @author      Zod-
// @source      https://gist.github.com/Zod-/b887f25ac9c849a27bf3
// @license     MIT

// @include     *://instasync.com/r/*
// @include     *://*.instasync.com/r/* 
// @grant       none
// @run-at      document-start

// @require     https://greasyfork.org/scripts/5647-instasynchp-library/code/code.js?version=49210
// ==/UserScript==

function AntiHatStealer() {
  "use strict";
  this.version = '1.0.1';
  this.name = 'InstaSynchP Anti Hat Stealer';
  this.settings = [{
    'label': 'Prevent with random emote',
    'id': 'anti-random-hat-emote',
    'type': 'checkbox',
    'default': true,
    'section': ['Anti Steal Hats']
  }, {
    'label': 'Prevent with fixed emote',
    'id': 'anti-fixed-hat-emote',
    'type': 'text',
    'default': '',
    'size': 10,
    'section': ['Anti Steal Hats']
  }, {
    'label': 'Prevent hat steals',
    'id': 'enabled-anti-hat-stealer',
    'type': 'checkbox',
    'default': true,
    'section': ['Anti Steal Hats']
  }];
}

AntiHatStealer.prototype.executeOnce = function () {
  'use strict';
  var th = this;
  var mes = '';

  function sendMessage(message) {
    var e = $.Event("keypress");
    e.which = e.keyCode = 13;
    $('#cin').val(message).trigger(e);
  }

  events.on(th, 'InputKeypress[13]', function (event, message) {
    mes = message;
  });
  events.on(th, 'InputKeyup[13]', function () {
    try{
    if ((mes.trim() !== '/jpb' && mes.trim() !== '/fed') ||
      !gmc.get('enabled-anti-hat-stealer')) {
      return;
    }
      
    var oldInput = $('#cin').val(),
      emotes = Object.keys(window.$codes),
      emote = gmc.get('anti-fixed-hat-emote');

    if (gmc.get('anti-random-hat-emote')) {
      emote = '/' + emotes[Math.floor(Math.random() * emotes.length)]
    }
    sendMessage(emote);

    $('#cin').val(oldInput);
      }catch(error){
        console.error(error);
      }
  });
};

window.plugins = window.plugins || {};
window.plugins.antiHatStealer = new AntiHatStealer();