MediaWiki:Common.js

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/* Any JavaScript here will be loaded for all users on every page load. */
/* === AdSense global loader (loads once) === */
(function() {
  var PUBLISHER_ID = "pub-6349390782750569"; // <-- replace
  if (!window._adsenseLoaded) {
    window._adsenseLoaded = true;

    // Load the AdSense library
    var s = document.createElement('script');
    s.async = true;
    s.src = "https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=" + encodeURIComponent(PUBLISHER_ID);
    s.crossOrigin = "anonymous";
    document.head.appendChild(s);
  }

  // Utility: create a responsive ad block
  window.createAdsenseBlock = function(slotId) {
    var cont = document.createElement('div');
    cont.style.margin = "12px 0";

    var ins = document.createElement('ins');
    ins.className = "adsbygoogle";
    ins.style.display = "block";
    ins.style.textAlign = "center";
    ins.setAttribute("data-ad-client", PUBLISHER_ID);
    ins.setAttribute("data-ad-slot", slotId); // <-- pass the slot ID
    ins.setAttribute("data-ad-format", "auto");
    ins.setAttribute("data-full-width-responsive", "true");

    cont.appendChild(ins);

    // Kick AdSense to render
    (window.adsbygoogle = window.adsbygoogle || []).push({});
    return cont;
  };
})();

/* === Choose where to place ads === */
mw.loader.using('mediawiki.util', function () {
  // Avoid showing ads to logged-in users (optional)
  if (mw.config.get('wgUserName')) return;

  // Only show on content pages (skip Special:, Edit, etc.)
  var ns = mw.config.get('wgNamespaceNumber');
  var action = mw.config.get('wgAction');
  if (ns !== 0 || action !== 'view') return;

  // Replace these with your slot IDs:
  var SLOT_BELOW_TITLE = "1234567890";
  var SLOT_AFTER_PARA1 = "2345678901";

  // Insert below the page title
  var titleEl = document.getElementById('firstHeading');
  if (titleEl && window.createAdsenseBlock) {
    var ad1 = createAdsenseBlock(SLOT_BELOW_TITLE);
    titleEl.insertAdjacentElement('afterend', ad1);
  }

  // Insert after first paragraph of content
  var content = document.getElementById('mw-content-text');
  if (content && window.createAdsenseBlock) {
    var firstP = content.querySelector('.mw-parser-output > p');
    if (firstP) {
      var ad2 = createAdsenseBlock(SLOT_AFTER_PARA1);
      firstP.insertAdjacentElement('afterend', ad2);
    }
  }
});