Add some style for folder-selector

skins/elastic/styles/widgets.less

@@ -259,6 +259,15 @@ ul.listing li input[type=checkbox] {
 }
 
 
+#folder-selector {
+	overflow-y: auto;
+}
+
+#folder-selector li a.virtual {
+	opacity: .2;
+}
+
+
 /* fixes border set by accordion widget */
 .propform.ui.accordion td.title {
 	border: none;

skins/elastic/ui.js

@@ -617,6 +617,10 @@ function rcube_elastic_ui()
         if (p && p.name == 'messagelistmenu') {
             menu_messagelist(p);
         }
+        else if (p && p.name == 'folder-selector') {
+            $('ul:first', p.obj).addClass('listing folderlist');
+            $(p.obj).addClass('ui popup visible');
+        }
     };
 
     /**