Merge pull request #29 from flatlogic/issue19

Fix issue #19

Author: okendoken

bootstrap-tabcollapse.js

@@ -56,13 +56,34 @@
         this.$tabs.trigger($.Event('show-tabs.bs.tabcollapse'));
 
         var $panelHeadings = this.$accordion.find('.js-tabcollapse-panel-heading').detach();
+
         $panelHeadings.each(function() {
             var $panelHeading = $(this),
-                $parentLi = $panelHeading.data('bs.tabcollapse.parentLi');
-            view._panelHeadingToTabHeading($panelHeading);
+            $parentLi = $panelHeading.data('bs.tabcollapse.parentLi');
+
+            var $oldHeading = view._panelHeadingToTabHeading($panelHeading);
+
+            $parentLi.removeClass('active');
+            if ($parentLi.parent().hasClass('dropdown-menu') && !$parentLi.siblings('li').hasClass('active')) {
+                $parentLi.parent().parent().removeClass('active');
+            }
+
+            if (!$oldHeading.hasClass('collapsed')) {
+                $parentLi.addClass('active');
+                if ($parentLi.parent().hasClass('dropdown-menu')) {
+                    $parentLi.parent().parent().addClass('active');
+                }
+            } else {
+                $oldHeading.removeClass('collapsed');
+            }
+
             $parentLi.append($panelHeading);
         });
 
+        if (!$('li').hasClass('active')) {
+            $('li').first().addClass('active')
+        }
+
         var $panelBodies = this.$accordion.find('.js-tabcollapse-panel-body');
         $panelBodies.each(function(){
             var $panelBody = $(this),