1 files changed, 30 insertions, 0 deletions
diff --git a/_includes/scripts/components/sidebar.js b/_includes/scripts/components/sidebar.js
new file mode 100644
index 0000000..92c5591
--- /dev/null
+++ b/_includes/scripts/components/sidebar.js
@@ -0,0 +1,30 @@
+(function() {
+  var SOURCES = window.TEXT_VARIABLES.sources;
+
+  window.Lazyload.js(SOURCES.jquery, function() {
+    var $pageMask = $('.js-page-mask');
+    var $pageRoot = $('.js-page-root');
+    var $sidebarShow = $('.js-sidebar-show');
+    var $sidebarHide = $('.js-sidebar-hide');
+
+    function freeze(e) {
+      if (e.target === $pageMask[0]) {
+        e.preventDefault();
+      }
+    }
+    function stopBodyScrolling(bool) {
+      if (bool === true) {
+        window.addEventListener('touchmove', freeze, { passive: false });
+      } else {
+        window.removeEventListener('touchmove', freeze, { passive: false });
+      }
+    }
+
+    $sidebarShow.on('click', function() {
+      stopBodyScrolling(true); $pageRoot.addClass('show-sidebar');
+    });
+    $sidebarHide.on('click', function() {
+      stopBodyScrolling(false); $pageRoot.removeClass('show-sidebar');
+    });
+  });
+})();