feat: add ng-cloak directive

Author: vojtajina

lib/angular.dart

@@ -13,6 +13,7 @@ part 'block_type.dart';
 part 'compiler.dart';
 part 'directive.dart';
 part 'directives/ng_bind.dart';
+part 'directives/ng_cloak.dart';
 part 'directives/ng_click.dart';
 part 'directives/ng_controller.dart';
 part 'directives/ng_mustache.dart';
@@ -125,6 +126,7 @@ angularModule(AngularModule module) {
 
   module.directive(NgBindAttrDirective);
   module.directive(NgRepeatAttrDirective);
+  module.directive(NgCloakAttrDirective);
   module.directive(NgClickAttrDirective);
   module.directive(NgControllerAttrDirective);
 }

lib/directives/ng_cloak.dart

@@ -0,0 +1,12 @@
+part of angular;
+
+
+class NgCloakAttrDirective {
+  dom.Element node;
+
+  NgCloakAttrDirective(dom.Node this.node) {}
+
+  attach(Scope scope) {
+    node.attributes.remove('ng-cloak');
+  }
+}

test/directives/ng_cloak_spec.dart

@@ -0,0 +1,30 @@
+import '../_specs.dart';
+import 'dart:html' as dom;
+
+
+main() {
+  beforeEach(module(angularModule));
+
+  describe('NgCloak', () {
+    var compile, element, rootScope;
+
+    triggerEvent(elementWrapper, name) {
+      elementWrapper[0].dispatchEvent(new dom.Event.eventType('MouseEvent', name));
+    }
+
+    beforeEach(inject((Scope scope, Compiler compiler) {
+      compile = (html, [applyFn]) {
+        element = $(html);
+        rootScope = scope;
+        compiler(element)(element).attach(scope);
+        scope.$apply(applyFn);
+      };
+    }));
+
+
+    it('should remove ng-cloak when compiled', () {
+      compile('<div><span ng-cloak></span></div>');
+      expect(element.html()).toEqual('<span></span>');
+    });
+  });
+}