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---
title: Presentation
slug: Web/API/Presentation
tags:
- API
- Интерфейс
- Презентация
- Презентация API
- Ссылка
- Экспериментальный
translation_of: Web/API/Presentation
---
<p>{{APIRef("Presentation API")}}</p>
<p>The <dfn><code>Presentation</code></dfn> can be defined as two possible user agents in the context: <span><em>Controlling user agent</em> </span>and <em><span>Receiving user agent</span></em>.</p>
<p>In controlling browsing context, the <a class="external internalDFN external-icon" href="https://www.w3.org/TR/presentation-api/#dfn-presentation"><code>Presentation</code></a> interface provides a mechanism to override the browser default behavior of launching presentation to external screen. In receiving browsing context, <code>Presentation</code> interface provides the access to the available presentation connections.</p>
<h2 id="Properties">Properties</h2>
<dl>
<dt>{{domxref("Presentation.defaultRequest")}}</dt>
<dd>In a <a class="internalDFN" href="https://www.w3.org/TR/presentation-api/#dfn-controlling-user-agent">controlling user agent</a>, the <dfn><code>defaultRequest</code></dfn> attribute <em>MUST</em> return the <a class="internalDFN" href="https://www.w3.org/TR/presentation-api/#dfn-default-presentation-request">default presentation request</a> if any, <code>null</code> otherwise. In a <a class="internalDFN" href="https://www.w3.org/TR/presentation-api/#dfn-receiving-browsing-context">receiving browsing context</a>, it <em>MUST</em> return <code>null</code>.</dd>
<dt>{{domxref("Presentation.receiver")}}</dt>
<dd>In a <a class="internalDFN" href="https://www.w3.org/TR/presentation-api/#dfn-receiving-user-agent">receiving user agent</a>, the <dfn><code>receiver</code></dfn> attribute <em>MUST</em> return the <a class="internalDFN" href="https://www.w3.org/TR/presentation-api/#idl-def-presentationreceiver"><code><code>PresentationReceiver</code></code></a> instance associated with the <a class="internalDFN" href="https://www.w3.org/TR/presentation-api/#dfn-receiving-browsing-context">receiving browsing context</a> and created by the <a class="internalDFN" href="https://www.w3.org/TR/presentation-api/#dfn-receiving-user-agent">receiving user agent</a> when the <a class="internalDFN" href="https://www.w3.org/TR/presentation-api/#dfn-receiving-browsing-context">receiving browsing context</a> is created.</dd>
</dl>
<h2 id="Methods">Methods</h2>
<p>None.</p>
<p> </p>
<h2 id="Specifications">Specifications</h2>
<table class="standard-table">
<tbody>
<tr>
<th scope="col">Specification</th>
<th scope="col">Status</th>
<th scope="col">Comment</th>
</tr>
<tr>
<td>{{SpecName('Presentation','#interface-presentation','Presentation interface')}}</td>
<td>{{Spec2('Presentation')}}</td>
<td>Initial definition.</td>
</tr>
</tbody>
</table>
<h2 id="Browser_Compatibility">Browser Compatibility</h2>
<p>{{Compat("api.Presentation")}}</p>
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