☰

Page Filter

Removes links, images, and text which refer to specific keywords. When a keyword is found in an URL of a link or image, the link/image will be removed. When a keyword is found in a text, the whole text in its container element, will be removed.

  1. // ==UserScript==
  2. // @name         Page Filter
  3. // @namespace    http://tampermonkey.net/
  4. // @version      1.0.1
  5. // @license      GNU AGPLv3
  6. // @description  Removes links, images, and text which refer to specific keywords. When a keyword is found in an URL of a link or image, the link/image will be removed. When a keyword is found in a text, the whole text in its container element, will be removed.
  7. // @author       jcunews
  8. // @match        *://*/*
  9. // @grant        none
  10. // ==/UserScript==
  11.  
  12. (function() {
  13.  
  14.   //*** CONFIGURATION BEGIN ***
  15.  
  16.   //Below regular expression will be compared against URLs and text.
  17.   //Put anything there to remove them from the page.
  18.   var rx = /\b(removeme|deleteme)\b/gi;
  19.  
  20.   //*** CONFIGURATION END ***
  21.  
  22.   function processElement(node, url, nextNode, styles) {
  23.     if (rx.test(node.href || node.src) || ((styles = getComputedStyle(node)) && rx.test(styles.backgroundImage))) {
  24.       if (rx.test(node.parentNode.textContent)) {
  25.         node.parentNode.innerHTML = "";
  26.       } else node.remove();
  27.     } else {
  28.       for (node = node.childNodes[0]; node; node = nextNode) {
  29.         nextNode = node.nextSibling;
  30.         processNode(node);
  31.       }
  32.     }
  33.   }
  34.  
  35.   function processNode(node) {
  36.     switch (node.nodeType) {
  37.       case Node.ELEMENT_NODE:
  38.         processElement(node);
  39.         break;
  40.       case Node.TEXT_NODE:
  41.         if (rx.test(node.nodeValue)) node.nodeValue = "";
  42.         break;
  43.     }
  44.   }
  45.  
  46.   processNode(document.body);
  47.  
  48.   (new MutationObserver(function(records) {
  49.     records.forEach(function(record) {
  50.       if (record.type === "characterData") {
  51.         if (rx.test(record.target.nodeValue)) record.target.nodeValue = "";
  52.       } else record.addedNodes.forEach(processNode);
  53.     });
  54.   })).observe(document.body, {childList: true, characterData: true, subtree: true});
  55. })();