disable "Add" button in Nested Content config when no available docTypes are left

src/Umbraco.Web.UI.Client/src/views/propertyeditors/nestedcontent/nestedcontent.controller.js

@@ -15,6 +15,10 @@
             });
         }
 
+        $scope.canAdd = function () {
+            return !$scope.model.docTypes || !$scope.model.value || $scope.model.value.length < $scope.model.docTypes.length;
+        }
+
         $scope.remove = function (index) {
             $scope.model.value.splice(index, 1);
         }
@@ -60,7 +64,6 @@
 
             // Count doctype name occurrences
             var docTypeNameOccurrences = _.countBy(docTypes, 'name');
-            console.info(docTypeNameOccurrences);
             
             // Populate document type tab dictionary
             // And append alias to name if multiple doctypes have the same name

src/Umbraco.Web.UI.Client/src/views/propertyeditors/nestedcontent/nestedcontent.doctypepicker.html

@@ -43,7 +43,7 @@
             </tbody>
         </table>
         <div>
-            <button type="button" class="btn" ng-click="add()">
+            <button type="button" class="btn" ng-click="add()" ng-disabled="!canAdd()">
                 <localize key="general_add">Add</localize>
             </button>
             <i class="icon icon-help-alt medium umb-nested-content__help-icon" ng-click="showHelpText = !showHelpText"></i>