如果条件验证为angularjs，如何添加ng-dbclick？

app.directive('ngDbclick', function() {
  return {
    restrict: 'A',
    require: 'ngModel',
    link: function(scope, element, attrs, ngModelCtrl) {
      // 在这里添加条件验证和ng-dbclick的逻辑
    }
  };
});

app.directive('ngDbclick', function() {
  return {
    restrict: 'A',
    require: 'ngModel',
    link: function(scope, element, attrs, ngModelCtrl) {
      // 监听ngModel的值变化
      scope.$watch(function() {
        return ngModelCtrl.$modelValue;
      }, function(newValue) {
        // 根据条件验证的结果来添加ng-dbclick事件
        if (newValue === true) {
          element.on('dblclick', function() {
            // 执行ng-dbclick的逻辑
          });
        } else {
          element.off('dblclick');
        }
      });
    }
  };
});

<input type="checkbox" ng-model="condition" ng-dbclick>