在此页

• 构造函数
• 特性
• 方法
• 规范
• 浏览器兼容性
• 相关话题

这是 实验性技术
检查 浏览器兼容性表格 要小心谨慎在生产中使用这之前。

安全上下文
此特征只可用于 安全上下文 (HTTPS)，在某些或所有 支持浏览器 .

A PresentationRequest object is used to initiate or reconnect to a presentation made by a controlling browsing context 。 PresentationRequest 对象 MUST be implemented in a controlling browsing context provided by a controlling user agent .

当 PresentationRequest is constructed, the given urls MUST be used as the list of presentation request URLs which are each a possible presentation URL 为 PresentationRequest 实例。

构造函数

PresentationRequest()

创建 PresentationRequest .

特性

None

事件处理程序

PresentationRequest.onconnectionavailable

Fires on a successful call to PresentationRequest.start() or PresentationRequest.join() . This method provides a object with a reference to the created or joined object.

方法

PresentationRequest.start()

返回 Promise that resolves with a PresentationConnection after the user agent prompts the user to select a display and grant permission to use that display.

PresentationRequest.reconnect()

当 reconnect (presentationId) method is called on a PresentationRequest presentationRequest ， 用户代理 MUST run the following steps to reconnect to a presentation .

PresentationRequest.getAvailability()

当 getAvailability () method is called, the user agent MUST run the steps as the link.

规范

规范	状态	注释
Presentation API The definition of 'PresentationRequest interface' in that specification.	候选推荐	初始定义。

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
PresentationRequest	Chrome 48	Edge ≤79	Firefox 51	IE No	Opera 35	Safari ?	WebView Android No	Chrome Android 48	Firefox Android 51	Opera Android 35	Safari iOS ?	Samsung Internet Android 5.0
PresentationRequest() 构造函数	Chrome 48	Edge ≤79	Firefox 51	IE No	Opera 35	Safari ?	WebView Android No	Chrome Android 48	Firefox Android 51	Opera Android 35	Safari iOS ?	Samsung Internet Android 5.0
getAvailability	Chrome 48	Edge ≤79	Firefox 51	IE No	Opera 35	Safari ?	WebView Android No	Chrome Android 48	Firefox Android 51	Opera Android 35	Safari iOS ?	Samsung Internet Android 5.0
onconnectionavailable	Chrome 48	Edge ≤79	Firefox 51	IE No	Opera 35	Safari ?	WebView Android No	Chrome Android 48	Firefox Android 51	Opera Android 35	Safari iOS ?	Samsung Internet Android 5.0
reconnect	Chrome 48	Edge ≤79	Firefox 51	IE No	Opera 35	Safari ?	WebView Android No	Chrome Android 48	Firefox Android 51	Opera Android 35	Safari iOS ?	Samsung Internet Android 5.0
Secure context required	Chrome 61	Edge ≤79	Firefox ?	IE No	Opera 48	Safari ?	WebView Android No	Chrome Android 61	Firefox Android ?	Opera Android 45	Safari iOS ?	Samsung Internet Android 8.0
start	Chrome 48	Edge ≤79	Firefox 51	IE No	Opera 35	Safari ?	WebView Android No	Chrome Android 48	Firefox Android 51	Opera Android 35	Safari iOS ?	Samsung Internet Android 5.0
startWithDevice	Chrome 48	Edge ≤79	Firefox 51	IE No	Opera 35	Safari ?	WebView Android No	Chrome Android 48	Firefox Android 51	Opera Android 35	Safari iOS ?	Samsung Internet Android 5.0

图例

完整支持

完整支持

不支持

不支持

兼容性未知 ?

兼容性未知

实验。期望将来行为有所改变。

实验。期望将来行为有所改变。

用户必须明确启用此特征。

用户必须明确启用此特征。

元数据

• 最后修改： Jan 13, 2020

相关话题

1. 接口

   1. Presentation
   2. PresentationAvailability
   3. PresentationDeviceInfoManager
   4. PresentationRequest
   5. PresentationSession
   6. PresentationSessionConnectEvent
2. 特性

   1. Navigator.presentation
   2. Navigator.mozPresentationDeviceInfo