docs: only show inner methods when class is active

Author: stephenplusplus

docs/site/components/subpage/subpage-directive.js

@@ -33,6 +33,10 @@ angular
             return $location.path() === url.replace('#', '');
           };
         }
+
+        $scope.isActiveClass = function(module) {
+          return $location.path().indexOf(module.url.replace('#', '')) === 0;
+        };
       }
     };
   })

docs/site/components/subpage/subpage.html

@@ -84,7 +84,7 @@ <h4 class="list-item--heading">API</h4>
           ng-href="{{page.url}}">
           {{page.title}}
         </a>
-        <ul class="sub-sections" ng-if="page.pages">
+        <ul class="sub-sections" ng-if="page.pages" ng-show="isActiveClass(page)">
           <li ng-repeat="innerPage in page.pages">
             <a
               ng-class="{ current: isActiveUrl(page.url + innerPage.url) }"