1 files changed, 24 insertions, 1 deletions
diff --git a/app/javascript/flavours/glitch/packs/settings.js b/app/javascript/flavours/glitch/packs/settings.js
index 4c85f6556..31c88b2b5 100644
--- a/app/javascript/flavours/glitch/packs/settings.js
+++ b/app/javascript/flavours/glitch/packs/settings.js
@@ -7,8 +7,31 @@ import 'cocoon-js-vanilla';
 function main() {
   const { delegate } = require('@rails/ujs');
 
+  const toggleSidebar = () => {
+    const sidebar = document.querySelector('.sidebar ul');
+    const toggleButton = document.querySelector('.sidebar__toggle__icon');
+
+    if (sidebar.classList.contains('visible')) {
+      document.body.style.overflow = null;
+      toggleButton.setAttribute('aria-expanded', false);
+    } else {
+      document.body.style.overflow = 'hidden';
+      toggleButton.setAttribute('aria-expanded', true);
+    }
+
+    toggleButton.classList.toggle('active');
+    sidebar.classList.toggle('visible');
+  };
+
   delegate(document, '.sidebar__toggle__icon', 'click', () => {
-    document.querySelector('.sidebar ul').classList.toggle('visible');
+    toggleSidebar();
+  });
+
+  delegate(document, '.sidebar__toggle__icon', 'keydown', e => {
+    if (e.key === ' ' || e.key === 'Enter') {
+      e.preventDefault();
+      toggleSidebar();
+    }
   });
 }