☰

It's Not Important

At least part of the world will became a bit less important now.

  1. // ==UserScript==
  2. // @name         It's Not Important
  3. // @namespace    lainscripts_it_is_not_important
  4. // @version      1.5
  5. // @description  At least part of the world will became a bit less important now.
  6. // @author       lainverse
  7. // @match        *://*/*
  8. // @grant        none
  9. // @run-at       document-start
  10. // ==/UserScript==
  11. /* jshint esnext: true */
  12.  
  13. (function(){
  14.     'use strict';
  15.  
  16.     var imptt = /((display|(margin|padding)(-top|-bottom)?)\s*:[^;!]*)!\s*important/ig,
  17.         rplsf = function(str,grp){return grp;};
  18.  
  19.     function unimportanter(el, si) {
  20.         if (!imptt.test(si) || el.style.display == 'none')
  21.             return 0; // get out if we have nothing to do here
  22.         if (el.nodeName === 'IFRAME' && el.src &&
  23.             el.src.slice(0,17) === 'chrome-extension:')
  24.             return 0; // Web of Trust uses this method to add their frame
  25.         var so = si.replace(imptt, rplsf), ret = 0;
  26.         if (si != so) {
  27.             ret = 1;
  28.             el.setAttribute('style', so);
  29.         }
  30.         return ret;
  31.     }
  32.  
  33.     function logger(c) {
  34.         if (c) console.log('Some page elements became a bit less important.');
  35.     }
  36.  
  37.     function checkTarget(m, c) {
  38.         var si = m.getAttribute ? m.getAttribute('style') : null;
  39.         if (si && si.indexOf('!') > -1)
  40.             c+=unimportanter(m, si);
  41.         return c;
  42.     }
  43.  
  44.     function checkNodes(m, c) {
  45.         var i = m.length;
  46.         while(i--)
  47.             c = checkTarget(m[i], c);
  48.         return c;
  49.     }
  50.  
  51.     var observer = new MutationObserver(function(mutations) {
  52.         setTimeout(function(m) {
  53.             var i = m.length, c = 0;
  54.             while(i--) {
  55.                 if (m[i].target)
  56.                     c = checkTarget(m[i].target, c);
  57.                 if (m[i].addedNodes.length)
  58.                     c = checkNodes(m[i].addedNodes, c);
  59.             }
  60.             logger(c);
  61.         },0,mutations);
  62.     });
  63.  
  64.     observer.observe(document, { childList : true, attributes : true, attributeFilter : ['style'], subtree : true });
  65.  
  66.     window.addEventListener ("load", function(){
  67.         var c = 0, imp = document.querySelectorAll('[style*="!"]'), i = imp.length;
  68.         while(i--) {
  69.             c+= checkTarget(imp[i], c);
  70.         }
  71.         logger(c);
  72.     }, false);
  73. })();