files/zh-cn/web/api/globaleventhandlers/onpointerenter/index.html


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---
title: GlobalEventHandlers.onpointerenter
slug: Web/API/GlobalEventHandlers/onpointerenter
translation_of: Web/API/GlobalEventHandlers/onpointerenter
---
<div>HTML DOM</div>

<div>pointerenter事件的GlobalEventHandlers（全局事件处理函数）</div>

<p> </p>

<pre class="syntaxbox">var <var>enterHandler</var> = <var>targetElement</var>.onpointerenter;
</pre>

<h3 id="返回值">返回值</h3>

<dl>
 <dt><code>enterHandler</code></dt>
</dl>

<p>      <code>targetElement</code>的pointerenter事件处理函数。</p>

<h2 id="例子">例子</h2>

<p>这个例子展示了使用onpointerenter来设置元素pointerenter事件处理函数的两种方式<em>。</em></p>

<pre class="brush: js">&lt;html&gt;
&lt;script&gt;
function enterHandler(ev) {
 // 处理pointerenter 事件
}
function init() {
 var el=document.getElementById("target1");
 el.onpointerenter = enterHandler;
}
&lt;/script&gt;
&lt;body onload="init();"&gt;
&lt;div id="target1"&gt; 点我 ... &lt;/div&gt;
&lt;div id="target2" onpointerenter="enterHandler(event)"&gt; 点我 ... &lt;/div&gt;
&lt;/body&gt;
&lt;/html&gt;
</pre>

<h2 id="规范">规范</h2>

<table class="standard-table">
 <tbody>
  <tr>
   <th scope="col">规范</th>
   <th scope="col">状态</th>
   <th scope="col">备注</th>
  </tr>
  <tr>
   <td>{{SpecName('Pointer Events 2','#widl-GlobalEventHandlers-onpointerenter', 'onpointerenter')}}</td>
   <td>{{Spec2('Pointer Events 2')}}</td>
   <td>Non-stable version</td>
  </tr>
  <tr>
   <td>{{SpecName('Pointer Events', '#widl-GlobalEventHandlers-onpointerenter', 'onpointerenter')}}</td>
   <td>{{Spec2('Pointer Events')}}</td>
   <td>Initial definition</td>
  </tr>
 </tbody>
</table>

<h2 id="浏览器兼容性">浏览器兼容性</h2>

<p>兼容性表</p>

<div id="compat-desktop">
<table class="compat-table">
 <tbody>
  <tr>
   <th>特点</th>
   <th>Chrome</th>
   <th>Firefox (Gecko)</th>
   <th>Internet Explorer</th>
   <th>Opera</th>
   <th>Safari</th>
  </tr>
  <tr>
   <td>基本支持</td>
   <td>CompatChrome("35")支持<sup>[1]</sup></td>
   <td>GeckoDesktop(59)支持</td>
   <td>支持需-ms前缀 <br>
    11支持</td>
   <td>支持程度未知</td>
   <td>不支持</td>
  </tr>
 </tbody>
</table>
</div>

<div id="compat-mobile">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Android</th>
   <th>Chrome for Android</th>
   <th>Firefox Mobile (Gecko)</th>
   <th>IE Mobile</th>
   <th>Opera Mobile</th>
   <th>Safari Mobile</th>
  </tr>
  <tr>
   <td>基本支持</td>
   <td>支持程度未知</td>
   <td>Chrome("35")支持<sup>[1]</sup></td>
   <td>GeckoMobile("29")支持<sup>[2]</sup></td>
   <td>10支持需-ms前缀 </td>
   <td>支持程度未知</td>
   <td>不支持</td>
  </tr>
 </tbody>
</table>
</div>

<p>[1] 这是在<a href="http://crbug.com/248918">bug 248918</a>中实现。</p>

<p>[2] 依赖于<code>dom.w3c_pointer_events.enabled</code>属性, 默认值为 <code>false</code>。</p>

<h2 id="相关链接">相关链接</h2>

<ul>
 <li>{{ event("pointerenter") }}</li>
</ul>