---
title: WindowEventHandlers
slug: Web/API/WindowEventHandlers
translation_of: Web/API/WindowEventHandlers
---
<div>{{APIRef("HTML DOM")}}</div>

<p><strong><code>WindowEventHandlers</code></strong> mixin describes the event handlers common to several interfaces like {{domxref("Window")}}, or {{domxref("HTMLBodyElement")}} and  {{domxref("HTMLFrameSetElement")}}. Each of these interfaces can implement additional specific event handlers.</p>

<p><code>WindowEventHandlers</code> is a not an interface and no object of this type can be created.</p>

<h2 id="屬性">屬性</h2>

<p><em>The events properties, of the form <code>onXYZ</code>, are defined on the {{domxref("WindowEventHandlers")}}, and implemented by {{domxref("Window")}}, and {{domxref("WorkerGlobalScope")}} for Web Workers.</em></p>

<dl>
 <dt>{{domxref("WindowEventHandlers.onafterprint")}}</dt>
 <dd>Is an {{domxref("EventHandler")}} representing the code to be called when the {{event("afterprint")}} event is raised.</dd>
 <dt>{{domxref("WindowEventHandlers.onbeforeprint")}}</dt>
 <dd>Is an {{domxref("EventHandler")}} representing the code to be called when the {{event("beforeprint")}} event is raised.</dd>
 <dt>{{domxref("WindowEventHandlers.onbeforeunload")}}</dt>
 <dd>Is an {{domxref("EventHandler")}} representing the code to be called when the {{event("beforeunload")}} event is raised.</dd>
 <dt>{{domxref("WindowEventHandlers.onhashchange")}}</dt>
 <dd>Is an {{domxref("EventHandler")}} representing the code to be called when the {{event("hashchange")}} event is raised.</dd>
 <dt>{{domxref("WindowEventHandlers.onlanguagechange")}} {{experimental_inline}}</dt>
 <dd>Is an {{domxref("EventHandler")}} representing the code to be called when the {{event("languagechange")}} event is raised.</dd>
 <dt>{{domxref("WindowEventHandlers.onmessage")}}</dt>
 <dd>Is an {{domxref("EventHandler")}} representing the code to be called when the {{event("message")}} event is raised.</dd>
 <dt>{{domxref("WindowEventHandlers.onoffline")}}</dt>
 <dd>Is an {{domxref("EventHandler")}} representing the code to be called when the {{event("offline")}} event is raised.</dd>
 <dt>{{domxref("WindowEventHandlers.ononline")}}</dt>
 <dd>Is an {{domxref("EventHandler")}} representing the code to be called when the {{event("online")}} event is raised.</dd>
 <dt>{{domxref("WindowEventHandlers.onpagehide")}}</dt>
 <dd>Is an {{domxref("EventHandler")}} representing the code to be called when the {{event("pagehide")}} event is raised.</dd>
 <dt>{{domxref("WindowEventHandlers.onpageshow")}}</dt>
 <dd>Is an {{domxref("EventHandler")}} representing the code to be called when the {{event("pageshow")}} event is raised.</dd>
 <dt>{{domxref("WindowEventHandlers.onpopstate")}}</dt>
 <dd>Is an {{domxref("EventHandler")}} representing the code to be called when the {{event("popstate")}} event is raised.</dd>
 <dt>{{domxref("WindowEventHandlers.onstorage")}}</dt>
 <dd>Is an {{domxref("EventHandler")}} representing the code to be called when the {{event("storage")}} event is raised.</dd>
 <dt>{{domxref("WindowEventHandlers.onunhandledrejection")}} {{experimental_inline}}</dt>
 <dd>An event handler for unhandled {{jsxref("Promise")}} rejection events.</dd>
 <dt>{{domxref("WindowEventHandlers.onunload")}}</dt>
 <dd>Is an {{domxref("EventHandler")}} representing the code to be called when the {{event("unload")}} event is raised.</dd>
</dl>

<h2 id="方法">方法</h2>

<p><em>This interface defines no method.</em></p>

<h2 id="規範">規範</h2>

<table class="standard-table">
 <thead>
  <tr>
   <th scope="col">Specification</th>
   <th scope="col">Status</th>
   <th scope="col">Comment</th>
  </tr>
 </thead>
 <tbody>
  <tr>
   <td>{{SpecName('HTML WHATWG', '#windoweventhandlers', 'GlobalEventHandlers')}}</td>
   <td>{{Spec2('HTML WHATWG')}}</td>
   <td>No change since the latest snapshot, {{SpecName("HTML5.1")}}.</td>
  </tr>
  <tr>
   <td>{{SpecName('HTML5.1', '#windoweventhandlers', 'GlobalEventHandlers')}}</td>
   <td>{{Spec2('HTML5.1')}}</td>
   <td>Snapshot of {{SpecName("HTML WHATWG")}}. Added <code>onlanguage</code> since the {{SpecName("HTML5 W3C")}} snapshot.</td>
  </tr>
  <tr>
   <td>{{SpecName("HTML5 W3C", "#windoweventhandlers", "GlobalEventHandlers")}}</td>
   <td>{{Spec2('HTML5 W3C')}}</td>
   <td>Snapshot of {{SpecName("HTML WHATWG")}}. Creation of <code>WindowEventHandlers</code> (properties where on the target before it).</td>
  </tr>
 </tbody>
</table>

<h2 id="瀏覽器相容性">瀏覽器相容性</h2>

<p>{{CompatibilityTable}}</p>

<div id="compat-desktop">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Firefox (Gecko)</th>
   <th>Chrome</th>
   <th>Internet Explorer</th>
   <th>Opera</th>
   <th>Safari</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
  </tr>
  <tr>
   <td><code>onhashchange</code></td>
   <td>{{CompatGeckoDesktop(1.9.2)}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
  </tr>
  <tr>
   <td><code>onlanguage</code>{{experimental_inline}}</td>
   <td>{{CompatGeckoDesktop(32)}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
  </tr>
  <tr>
   <td><code>onstorage</code></td>
   <td>{{CompatGeckoDesktop(45)}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
  </tr>
 </tbody>
</table>
</div>

<div id="compat-mobile">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Firefox Mobile (Gecko)</th>
   <th>Android</th>
   <th>IE Mobile</th>
   <th>Opera Mobile</th>
   <th>Safari Mobile</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>{{CompatVersionUnknown}}</td>
   <td rowspan="1">{{CompatUnknown}}</td>
   <td rowspan="1">{{CompatUnknown}}</td>
   <td rowspan="1">{{CompatUnknown}}</td>
   <td rowspan="1">{{CompatUnknown}}</td>
  </tr>
  <tr>
   <td><code>onhashchange</code></td>
   <td>{{CompatGeckoMobile(1.9.2)}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatUnknown}}</td>
  </tr>
  <tr>
   <td><code>onlanguage</code>{{experimental_inline}}</td>
   <td>{{CompatGeckoMobile(32)}}</td>
   <td rowspan="1">{{CompatUnknown}}</td>
   <td rowspan="1">{{CompatUnknown}}</td>
   <td rowspan="1">{{CompatUnknown}}</td>
   <td rowspan="1">{{CompatUnknown}}</td>
  </tr>
  <tr>
   <td><code>onstorage</code></td>
   <td>{{CompatGeckoDesktop(45)}}</td>
   <td rowspan="1">{{CompatUnknown}}</td>
   <td rowspan="1">{{CompatUnknown}}</td>
   <td rowspan="1">{{CompatUnknown}}</td>
   <td rowspan="1">{{CompatUnknown}}</td>
  </tr>
 </tbody>
</table>
</div>

<h2 id="參見">參見</h2>

<ul>
 <li>{{domxref("Window")}} and {{domxref("WorkerGlobalScope")}}</li>
</ul>