Freetube-redirect TamperMonkey

freetube-redirect.js

// ==UserScript==
// @name         Freetube Redirect
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       You
// @match        http*://*/*
// @grant        none
// @run-at        document-end
// ==/UserScript==

(function () {
  'use strict'

  function docReady (fn) {
    // https://stackoverflow.com/a/9899701
    // see if DOM is already available
    if (document.readyState === 'complete' || document.readyState ===
      'interactive') {
      // call on next available tick
      setTimeout(fn, 1)
    } else {
      document.addEventListener('DOMContentLoaded', fn)
    }
  }

  docReady(function () {
    document.querySelectorAll('a').forEach(element => {
      if (element.href.includes('youtube.com') ||
        element.href.includes('youtu.be') ||
        element.href.includes('hooktube.com')) {
        element.href = 'freetube://' + element.href
      } else {
        return
      }
      if (window.location.href.includes('youtube')) {
        element.onclick = function (e) {
          window.stop()
          e.stopImmediatePropagation()
          e.preventDefault()
          location.assign(element.href)
        }
      }
    })
  })
})();