add directive scrollIf, scroll to comment when reply

modules/core/client/directives/scrollIf.client.directive.js

@@ -0,0 +1,27 @@
+(function () {
+  'use strict';
+
+  angular.module('core')
+    .directive('scrollIf', scrollIf);
+
+  scrollIf.$inject = ['$uiViewScroll', '$location', '$anchorScroll'];
+
+  function scrollIf($uiViewScroll) {
+    var directive = {
+      restrict: 'A',
+      link: link
+    };
+
+    return directive;
+
+    function link(scope, element, attrs) {
+      scope.$watch(attrs.scrollIf, function (value) {
+        if (value) {
+          //element[0].scrollIntoView({block: 'end', behavior: 'smooth'});
+          //$uiViewScroll(element);
+          window.scrollTo(0, element[0].offsetTop - 60)
+        }
+      });
+    }
+  }
+}());