Question

我有一个自定义事件core-transitionend（实际上是由Polymer解雇），我可以使用document.addEventListener()设置一个事件处理程序。但是在AngularJS中最好的做法是什么？

或者，我可以在DOM中明确设置处理程序，即<paper-ripple on-core-transitionend="enter()"></paper-ripple>，但如何在AngularJS中定义此函数？

Answer 1

请参阅this小提琴，这里我创建了一个将事件绑定到元素的自定义指令，

angular.module('HelloApp', [])
    .directive('customDir', function () {
        return {
            restrict: 'A',

            link: function(scope, element, attrs)      
            {
                element.bind("click",function()
            {
            alert("you clicked me");

        })
            }    


        }
    })

在您的情况下，您只需将定义的事件绑定到元素

即可

Answer 2

您可以执行以下操作：

将自定义元素包含在auto-binding模板中。
将所有处理程序从角度范围绑定到聚合物范围（模板元素）。

那就是它！

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<link href="https://www.polymer-project.org/components/polymer/polymer.html" rel="import">

<link href="https://www.polymer-project.org/components/paper-button/paper-button.html" rel="import">
<div ng-app="demo-app">
  <div ng-controller="DemoController">
    <template bind-events="clickMe,mouseOver" is="auto-binding">
      <paper-button raised on-tap="{{clickMe}}" on-mouseover="{{mouseOver}}">click me</paper-button>
    </template>
    <pre>
            <code>
            {[{text}]}
            </code>
            </pre>
  </div>
</div>
<script>
  angular.module('demo-app', [])
    .config(function($interpolateProvider) {
      $interpolateProvider.startSymbol('{[{').endSymbol('}]}');
    })
    .directive('bindEvents', function() {
      return {
        restrict: 'A',
        link: function(scope, element, attrs) {
          eventNames = attrs.bindEvents.split(',');
          eventNames.forEach(function(eventName) {
            element[0][eventName] = scope[eventName];
          });
        }
      }
    })
    .controller('DemoController', function($scope) {
      $scope.text = '';
      $scope.clickMe = function() {
        $scope.text += '\nyou clicked me!!';
        $scope.$apply();
      };
      $scope.mouseOver = function() {
        $scope.text += '\nyou hovered me!!';
        $scope.$apply();
      }
    });
</script>

＆＃13;

如果复制整个范围不是问题，您可以：

＆＃13;

    <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
    <link href="https://www.polymer-project.org/components/polymer/polymer.html" rel="import">

    <link href="https://www.polymer-project.org/components/paper-button/paper-button.html" rel="import">
    <div ng-app="demo-app">
      <div ng-controller="DemoController">
        <template bind-angular-scope is="auto-binding">
          <paper-button raised on-tap="{{clickMe}}" on-mouseover="{{mouseOver}}">click me</paper-button>
        </template>
        <pre>
                <code>
                {[{text}]}
                </code>
                </pre>
      </div>
    </div>
    <script>
      angular.module('demo-app', [])
        .config(function($interpolateProvider) {
          $interpolateProvider.startSymbol('{[{').endSymbol('}]}');
        })
        .directive('bindAngularScope', function() {
        	return {
                restrict: 'A',
                link: function(scope, element, attrs) {
                    for(k in scope) {
                    	if (!element[0][k]) {
                    		element[0][k] = scope[k];
                    	}
                    }
                }
            }
        })
        .controller('DemoController', function($scope) {
          $scope.text = '';
          $scope.clickMe = function() {
            $scope.text += '\nyou clicked me!!';
            $scope.$apply();
          };
          $scope.mouseOver = function() {
            $scope.text += '\nyou hovered me!!';
            $scope.$apply();
          }
        });
    </script>

＆＃13;

注意：我必须更改Angular的interpolation symbol才能让他们一起工作。

如何在AngularJS中绑定自定义事件？

2 个答案: