PresentationConnectionAvailableEvent

这是 实验性技术
检查 浏览器兼容性表格 在生产中使用这之前。

Secure context
This feature is available only in secure contexts (HTTPS), in some or all supporting browsers .

PresentationConnectionAvailableEvent interface of the Presentation API is fired on a PresentationRequest when a connection associated with the object is created.

A controlling user agent fires a trusted event named connectionavailable on a PresentationRequest when a connection associated with the object is created. It is fired at the PresentationRequest instance, using the PresentationConnectionAvailableEvent interface, with the connection attribute set to the PresentationConnection object that was created. The event is fired for each connection that is created for the controller , either by the controller calling start() or reconnect() , or by the controlling user agent creating a connection on the controller's behalf via defaultRequest .

构造函数

PresentationConnectionAvailableEvent()
Creates a new PresentationConnectionAvailableEvent.

特性

PresentationConnectionAvailableEvent.connection 只读
Returns a references to the PresentationConnection object that fired the event.

规范

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

浏览器兼容性

更新 GitHub 上的兼容性数据
Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
PresentationConnectionAvailableEvent
Chrome 48 Edge ≤79 Firefox 51
Disabled
51
Disabled
Disabled From version 51: this feature is behind the dom.presentation.enabled preference (needs to be set to true ). To change preferences in Firefox, visit about:config.
IE No Opera Yes Safari ? WebView Android No Chrome Android 48 Firefox Android 51
Disabled
51
Disabled
Disabled From version 51: this feature is behind the dom.presentation.enabled preference (needs to be set to true ). To change preferences in Firefox, visit about:config.
Opera Android Yes Safari iOS ? Samsung Internet Android 5.0
PresentationConnectionAvailableEvent() 构造函数
Chrome 48 Edge ≤79 Firefox 51
Disabled
51
Disabled
Disabled From version 51: this feature is behind the dom.presentation.enabled preference (needs to be set to true ). To change preferences in Firefox, visit about:config.
IE No Opera ? Safari ? WebView Android No Chrome Android 48 Firefox Android 51
Disabled
51
Disabled
Disabled From version 51: this feature is behind the dom.presentation.enabled preference (needs to be set to true ). To change preferences in Firefox, visit about:config.
Opera Android ? Safari iOS ? Samsung Internet Android 5.0
connection
Chrome 48 Edge ≤79 Firefox 51
Disabled
51
Disabled
Disabled From version 51: this feature is behind the dom.presentation.enabled preference (needs to be set to true ). To change preferences in Firefox, visit about:config.
IE No Opera Yes Safari ? WebView Android No Chrome Android 48 Firefox Android 51
Disabled
51
Disabled
Disabled From version 51: this feature is behind the dom.presentation.enabled preference (needs to be set to true ). To change preferences in Firefox, visit about:config.
Opera Android Yes 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。