Cacher is the code snippet organizer for pro developers

// ==UserScript==
// @name         Submit/Save Hotkey (Ctrl + s)
// @namespace    https://github.com/tidusx18
// @version      0.0.1
// @description  Overrides browser default action for "Ctrl + s" hotkey to submit/save the current form/page.
// @author       You
// @match        https://fiu.blackboard.com/*
// @match        https://cp.fiu.edu/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

  // NOTE: Refactor with specifically targeted elements this will work with.

	document.addEventListener("keydown", function(e) {
    submitPage(e);
	}, false);

  try {
    getInstances(); // When hotkey pressed and focus is in TinyMCE editor
  } catch(e) {
      if(e instanceof ReferenceError) {
        console.log('TinyMCE is not defined.');
      }
  }

  function submitPage(e) {
    if (e.keyCode === 83 && (navigator.platform.match("Mac") ? e.metaKey : e.ctrlKey)) {
      e.preventDefault();

      var submit = document.querySelector("input.submit"); // Common edit pages
      if (submit) {
        return submit.click();
      }

      var update = document.querySelector("form input[value='Update']"); // TinyMCE HTML Popup
      if (update) {
        return update.click();
      }

      var backLink = document.querySelector("p.backLink a"); // "Ok" buttons to return to previous page
      if (backLink) {
        return backLink.click();
      }

      var closeButton = document.querySelector("[aria-labelledby=ui-id-6] .ui-dialog-buttonset button"); // CreatorPro
      if (closeButton) {
        return closeButton.click();
      }
    }
  }

  function getInstances() {
    return tinyMCE.onAddEditor.add( function(mgr,ed) {
            ed.onKeyDown.add( function(ed, e) {
              submitPage(e);
            });
          });
    }
})();