add JavaScript for page version selector

1 files changed, 18 insertions, 0 deletions

diff --git a/src/js/03-page-versions.js b/src/js/03-page-versions.js
new file mode 100644
index 0000000..672bda1
--- /dev/null
+++ b/src/js/03-page-versions.js
@@ -0,0 +1,18 @@
+;(function () {
+  'use strict'
+
+  var toggle = document.querySelector('.page-versions .versions-menu-toggle')
+  if (!toggle) return
+
+  var selector = document.querySelector('.page-versions')
+
+  toggle.addEventListener('click', function (e) {
+    selector.classList.toggle('is-active')
+    // don't let this event get smothered
+    e.stopPropagation()
+  })
+
+  window.addEventListener('click', function () {
+    selector.classList.remove('is-active')
+  })
+})()