Remove ads, nags from Gmail, Google

remove-google-ads-and-nags.user.js

// ==UserScript==
// @name         remove-google-ads-and-nags.user.js
// @namespace    http://onai.net/
// @version      0.5
// @description  Remove ads, nags from Gmail, Google.com
// @author       Kevin Gwynn
// @match        https://mail.google.com/*
// @match        https://www.google.com/*
// @match        https://calendar.google.com/*
// @grant        none
// ==/UserScript==

(function() {
  'use strict';
  
  let addMutationObserver = function() {
    
    console.log('KAG: Creating mutation observer to watch for Ads...');

    // Select the node that will be observed for mutations
    const adpNodes = document.getElementsByClassName('aDP');

    if (adpNodes.length === 0) {
      console.log('KAG: No aDP nodes found at this time (cannot create mutation observer)');
      return;
    }

    // As of 2021-09-01, <div class="aDP"> is the main container of the messages list
    const targetNode = adpNodes[0];

    // Options for the observer (which mutations to observe)
    const config = { attributes: false, childList: true, subtree: true };

    // Callback function to execute when mutations are observed
    const callback = function(mutationsList, observer) {
        // Use traditional 'for loops' for IE 11
        for(const mutation of mutationsList) {
            if (mutation.type === 'childList') {
                let adSpans = document.getElementsByClassName('ast');
                if (adSpans.length === 0) return;
                console.log('KAG: DOM structure changed; removing ' + adSpans.length + ' ad(s).');
                let removeNode = adSpans[0]?.parentElement?.parentElement?.parentElement?.parentElement?.parentElement?.parentElement;
                removeNode?.parentNode?.removeChild(removeNode);
            }
        }
    };

    // Create an observer instance linked to the callback function
    const observer = new MutationObserver(callback);

    // Start observing the target node for configured mutations
    observer.observe(targetNode, config);

    // Later, you can stop observing
    //observer.disconnect();
  }
  
  let removeNags = function() {
    let iframes = document.getElementsByTagName('IFRAME');
    for (let i = 0; i < iframes.length; i++) {
      if (iframes[i].getAttribute('role') === 'presentation') {
        if (iframes[i].src.includes('/callout/')) {
          console.log('KAG: Removing Chrome nag...');
          iframes[i].parentNode.removeChild(iframes[i]);
        }
      }
    }
  };

  setTimeout(addMutationObserver, 5000);
  setTimeout(removeNags, 400);
  setTimeout(removeNags, 1500);
})();