JavaScript的：

.directive('onClickOutside',function($timeout) {
    return {
      restrict: 'A',scope: {
        onClickOutside: "&"
      },link: function(scope,element,attr) {
        angular.element(document).bind('click',function(event) {
          var isChild = childOf(event.target,element[0]);
          if (!isChild) {
            scope.$apply(scope.onClickOutside);
          }
        });
        function childOf(c,p) {
          while ((c = c.parentNode) && c !== p);
          return !!c;
        }
      }
    };
  });