screencast preview

screencastPreview.js

(function() {
  const links = document.getElementsByTagName('a');
  for (let i = 0; i < links.length; i++) {
    const a = links.item(i);
    if (a.href && a.href.search('screencast.com') >= 0) {
      console.log('screencast link', i, a);
      let ifrFound = false;
      for (let j = 0; j < a.childNodes.length; j++) {
        if (a.childNodes.item(j).nodeName === 'IFRAME') {
          ifrFound = true;
          break;
        }
      }
      
      if (ifrFound) continue;
      const ifr = document.createElement('iframe');
      
      ifr.setAttribute('width', 500);
      ifr.setAttribute('height', 400);
      ifr.setAttribute('src', a.href);
      a.appendChild(ifr);
    } else {
      console.log('just link', i, a.href);
    }
  }
  console.log('links', links);
})();