Announce current page on sidebar links, version

python/packages/autogen-core/docs/src/_static/custom.js

@@ -27,6 +27,42 @@ document.addEventListener('DOMContentLoaded', function() {
       });
     });
   });
+
+  // Set active TOCtree elements with aria-current=page
+  document.querySelectorAll('.bd-sidenav .active').forEach(function(element) {
+    element.setAttribute('aria-current', 'page');
+  });
+
+  // Set secondary navbar (in-page nagivation) active element with aria-current=page
+  document.addEventListener("activate.bs.scrollspy", function () {
+    const navLinks = document.querySelectorAll(".bd-toc-nav a");
+
+    navLinks.forEach((navLink) => {
+      navLink.parentElement.removeAttribute('aria-current');
+    });
+
+    const activeNavLinks = document.querySelectorAll(".bd-toc-nav a.active");
+    activeNavLinks.forEach((navLink) => {
+      navLink.parentElement.setAttribute('aria-current', 'page');
+    });
+  });
+
+  // Version dropdown menu is dynamically generated after page load. Listen for changes to set aria-selected
+  var observer = new MutationObserver(function() {
+    document.querySelectorAll('.dropdown-item').forEach(function(element) {
+      if (element.classList.contains('active')) {
+        element.setAttribute('aria-selected', 'true');
+      }
+    });
+  });
+
+  // Observe changes in the version-switcher__menu element
+  var targetNode = document.querySelector('.version-switcher__menu');
+  var config = { childList: true, subtree: true };
+
+  if (targetNode) {
+      observer.observe(targetNode, config);
+  }
 });
 
 async function copyToClipboard(button) {