angular.module('ui.bootstrap.dropdownToggle',[]).directive('dropdownToggle',['$document','$location',function ($document,$location) {
  var openElement = null,closeMenu   = angular.noop;
  return {
    restrict: 'CA',link: function(scope,element,attrs) {
      scope.$watch('$location.path',function() { closeMenu(); });
      element.parent().bind('click',function() { closeMenu(); });
      element.bind('click',function (event) {

        var elementWasOpen = (element === openElement);

        event.preventDefault();
        event.stopPropagation();

        if (!!openElement) {
          closeMenu();
        }

        if (!elementWasOpen && !element.hasClass('disabled') && !element.prop('disabled')) {
          element.parent().addClass('open');
          openElement = element;
          closeMenu = function (event) {
            if (event) {
              event.preventDefault();
              event.stopPropagation();
            }
            $document.unbind('click',closeMenu);
            element.parent().removeClass('open');
            closeMenu = angular.noop;
            openElement = null;
          };
          $document.bind('click',closeMenu);
        }
      });
    }
  };
}]);

解决方法@H_502_17@

下拉式指令绑定文档上的点击事件，但是当您单击行时，事件将从目标元素向下传播到根文档节点(td – > tr – > table – >文档)。

所以这就是为什么你的ng点击处理程序，你的行，总是被调用，即使指令是“停止”文档点击的气泡。

解决方案是在添加文档的点击处理程序时使用useCapture标志。

After initiating capture,all events of the specified type will be
dispatched to the registered listener before being dispatched to any
EventTarget beneath it in the DOM tree. ⁰⁷⁰⁰⁰

现在，要指示下拉式指令使用您自己的处理程序，您需要更改指令的来源。但是这是第三方的指令，你可能不想这样做，因为可维护性的原因。

这是强大的角度$装饰器踢的地方。您可以使用$ decorator来即时更改第三方模块的来源，而不会实际触及实际的源文件。

因此，使用装饰器，并在文档节点上使用自定义事件处理程序，这是如何使该下拉行为：

FIDDLE

var myApp = angular.module('myApp',[]);

/**
 * Original dropdownToggle directive from ui-bootstrap.
 * Nothing changed here.
 */
myApp.directive('dropdownToggle',closeMenu); /* <--- CAUSE OF ALL PROBLEMS ----- */
        }
      });
    }
  };
}]);


/**
 * This is were we decorate the dropdownToggle directive
 * in order to change the way the document click handler works
 */
myApp.config(function($provide){
  'use strict';

  $provide.decorator('dropdownToggleDirective',[
      '$delegate','$document',function ($delegate,$document) {

        var directive = $delegate[0];
        var openElement = null;
        var closeMenu = angular.noop;

        function handler(e){
            var elm = angular.element(e.target);
          if(!elm.parents('.dropdown-menu').length){
            e.stopPropagation();
            e.preventDefault();
          }
          closeMenu();
          // After closing the menu,we remove the all-seeing handler
          // to allow the application click events to work nnormally
          $document[0].removeEventListener('click',handler,true);
        }

        directive.compile = function(){
          return function(scope,element) {
            scope.$watch('$location.path',closeMenu);
            element.parent().bind('click',closeMenu);
            element.bind('click',function (event) {

              var elementWasOpen = (element === openElement);

              event.preventDefault();
              event.stopPropagation();

              if (!!openElement) {
                closeMenu();
              }

              if (!elementWasOpen && !element.hasClass('disabled') && !element.prop('disabled')) {
                element.parent().addClass('open');
                openElement = element;
                closeMenu = function (event) {
                  if (event) {
                    event.preventDefault();
                    event.stopPropagation();
                  }
                  $document.unbind('click',closeMenu);
                  element.parent().removeClass('open');
                  closeMenu = angular.noop;
                  openElement = null;
                };


                // We attach the click handler by specifying the third "useCapture" parameter as true
                $document[0].addEventListener('click',true);
              }
            });
          };
        };

        return $delegate;
      }
  ]);

});

更新：

请注意，更新的自定义处理程序将防止冒泡，除非目标元素是实际的下拉选项。这将解决即使点击下拉选项也可以防止点击事件的问题。

这仍然不会阻止事件逐渐下降到行(从下拉列表中选择)，但这与下拉式指令无关。无论如何，为了防止这种冒泡，您可以将$ event对象传递给ng-click表达式函数，并使用该对象来阻止偶尔向下滚动到表行：

<div ng-controller="DropdownCtrl">
  <table>
    <tr ng-click="clicked('row')">
      <td>

        <div class="btn-group">
          <button type="button" class="btn btn-default dropdown-toggle">
            Action <span class="caret"></span>
          </button>
          <ul class="dropdown-menu" role="menu">
            <li ng-repeat="choice in items">
              <a ng-click="clicked('link element',$event)">{{choice}}</a>
            </li>
          </ul>
        </div>

      </td>
    </tr>
  </table>
</div>

function DropdownCtrl($scope) {
  $scope.items = [
    "Action","Another action","Something else here"
  ];

  $scope.clicked = function(what,event) {
    alert(what + ' clicked');
    if(event){
      event.stopPropagation();
      event.preventDefault();
    }
  }

}