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EmberJS 模板停止事件传播

2018-01-03 18:58 更新

描述

您还可以通过禁用传播到父节点来停止传播。参数bubbles = false将阻止浏览器传播事件。它确保按钮链接不被点击。

语句

{{#link-to 'link text'}}
   <button {{action 'actionName' bubbles=false}}>ButtonName</button>
{{/link-to}}

例子

<!DOCTYPE html>
<html>
   <head>
      <title>Emberjs Stopping Event Propagation</title>
      <!-- CDN's -->
      <script src="https://cdnjs.cloudflare.com/ajax/libs/handlebars.js/3.0.1/handlebars.min.js"></script>
      <script src="https://code.jquery.com/jquery-2.1.3.min.js"></script>
      <script src="https://cdnjs.cloudflare.com/ajax/libs/ember.js/1.10.0/ember.min.js"></script>
      <script src="https://builds.emberjs.com/tags/v1.10.0-beta.3/ember-template-compiler.js"></script>
      <script src="https://builds.emberjs.com/release/ember.debug.js"></script>
      <script src="https://builds.emberjs.com/beta/ember-data.js"></script>
   </head>
   <body>
      <script type="text/x-handlebars">
        {{outlet}}
      </script>

      <script type="text/x-handlebars" data-template-name="index">
         <div {{action 'User'}}>
            <h2> Link 1 </h2><br/>
            <!-- disabling the multiple calls for link 1 by making bubble=false -->
            <span {{action 'User1' bubbles=false}}>
               <h2> Link 2 </h2>
            </span>
         </div>
      </script>

      <script type="text/javascript">
         App = Ember.Application.create();
         App.IndexRoute = Ember.Route.extend({
            actions: {
               //creating an action event
               User: function () {
                  document.write('Welcome to Tutorialspoint');
               },
               //creating an action event
              User1: function () {
                 document.write('Hello');
              }
            }
         });
      </script>
   </body>
</html>

输出

让我们执行以下步骤，看看上面的代码如何工作：

将上面的代码保存在temp_act_event_prop.html文件中
在浏览器中打开此HTML文件。

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