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It's Not Important

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

目前为 2016-03-24 提交的版本。查看 最新版本。

  1. // ==UserScript==
  2. // @name         It's Not Important
  3. // @namespace    lainscripts_it_is_not_important
  4. // @version      1.3
  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.         var so = si.replace(imptt, rplsf), ret = 0;
  23.         if (si != so) {
  24.             ret = 1;
  25.             el.setAttribute('style', so);
  26.         }
  27.         return ret;
  28.     }
  29.  
  30.     function logger(c) {
  31.         if (c) console.log('Some page elements became a bit less important.');
  32.     }
  33.  
  34.     document.addEventListener ("DOMContentLoaded", function(){
  35.         var c = 0, imp = document.querySelectorAll('[style*="!"]'), i = imp.length;
  36.         while(i--)
  37.             c+= unimportanter(imp[i]);
  38.         logger(c);
  39.     });
  40.  
  41.     function checkTarget(m, c) {
  42.         var si = m.getAttribute ? m.getAttribute('style') : null;
  43.         if (si && si.indexOf('!') > -1)
  44.             c+=unimportanter(m, si);
  45.         return c;            
  46.     }
  47.  
  48.     function checkNodes(m, c) {
  49.         var i = m.length;
  50.         while(i--)
  51.             c = checkTarget(m[i], c);
  52.         return c;            
  53.     }
  54.  
  55.     var observer = new MutationObserver(function(mutations) {
  56.         setTimeout(function(m) {
  57.             var i = m.length, c = 0;
  58.             while(i--) {
  59.                 if (m[i].target)
  60.                     c = checkTarget(m[i].target, c);
  61.                 if (m[i].addedNodes.length)
  62.                     c = checkNodes(m[i].addedNodes, c);
  63.             }
  64.             logger(c);
  65.         },0,mutations);
  66.     });
  67.  
  68.     observer.observe(document, { childList : true, attributes : true, attributeFilter : ['style'], subtree : true });
  69. })();