ux: add scroll position lock for default docs sidebar

2022-02-02 10:54:55 +01:00
parent 971894755e
commit 17eb9a6902
2 changed files with 15 additions and 1 deletions
--- a/assets/js/app.js
+++ b/assets/js/app.js
@ -0,0 +1,14 @@
+// Adds scroll position lock for default docs sidebar
+
+if (document.querySelector('#sidebar-default') !== null) {
+  let sidebar = document.getElementById('sidebar-default');
+
+  let pos = sessionStorage.getItem('sidebar-scroll');
+  if (pos !== null) {
+      sidebar.scrollTop = parseInt(pos, 10);
+  }
+
+  window.addEventListener('beforeunload', () => {
+      sessionStorage.setItem('sidebar-scroll', sidebar.scrollTop);
+  });
+}