Only show ui toggle if on signin page (#1515)

Signed-off-by: Dave O'Connor <1656866+HammerMeetNail@users.noreply.github.com>
Signed-off-by: Dave O'Connor <doconnor@redhat.com>

static/directives/header-bar.html

@@ -44,7 +44,7 @@
 
         <!-- Normal -->
         <ul class="nav navbar-nav navbar-right hidden-xs" ng-switch on="user.anonymous">
-          <li class="new-ui-toggle" ng-if="Features.UI_V2">
+          <li class="new-ui-toggle" ng-if="Features.UI_V2 && !checkElementByID('signin-username')">
               <new-ui-toggle></new-ui-toggle>
           </li>
           <li>

static/js/directives/ui/header-bar.js

@@ -145,6 +145,14 @@ angular.module('quay').directive('headerBar', function () {
           'namespace': namespace
         };
       };
+
+      $scope.checkElementByID = function(elementID) {
+        var result = false;
+        if (document.getElementById(elementID)) {
+          result = true;
+        }
+        return result;
+      }
     }
   };
   return directiveDefinitionObject;