Участник:Dmitry89/tineye.js

$(document).ready( function() {
 if (mw.config.get('wgNamespaceNumber') != 6 || mw.config.get('wgAction') != "view" || !document.getElementById('file')) return;

 var imgs = document.getElementById('file').getElementsByTagName('img');
 if (!imgs || imgs.length == 0) return; // No preview image, e.g. for large PNGs
 
 var imageurl = imgs[0].parentNode.href;
 if (!imageurl) return; /* This occurs with thumbs of videos for instance */

 if (document.getElementById('file').getElementsByTagName('img').length <= 0)
   return; /* For the case of 'Error creating thumbnail: Invalid thumbnail parameters or PNG file with more than 12.5 million pixels' */

 if (document.getElementById('file').getElementsByTagName('img')[0].width <= 300) {
   imageurl = document.getElementById('file').getElementsByTagName('img')[0].src; //Image smaller than 300px width
 } else { //Get thumb url
   var n = imageurl.indexOf("/ru/");
   imageurl = imageurl.substring(0, n + ("/ru/").length) + "thumb/" + imageurl.substring(n + ("/ru/").length);

   n = imageurl.lastIndexOf('/') + 1;
   imageurl = imageurl + "/300px-" + imageurl.substring(n); 
 }

   mw.util.addPortletLink('p-cactions', 'http://tineye.com/search?url=' + encodeURIComponent(imageurl) + '&sort=size&order=desc', 'TinEye', 'ca-tineye', null);
});