directive test

gistfile1.txt

  app.directive('hideWhileLoading',   ['$http' ,function ($http)
    {
        return {
            restrict: 'A',
            link: function (scope, elm, attrs)
            {
                scope.$watch(true, function(v)
                {
                  elm.hide();
                });

                scope.$watch(scope.isLoading, function (v)
                {
                    if(v){
                        elm.show();
                    }else{
                        elm.hide();
                    }
                });
            }
        };

    }]);