The<dfnfor="Presentation"><code>defaultRequest</code></dfn>

The<dfndata-dfn-for="Presentation"><code>defaultRequest</code></dfn>

attribute MUST return the<a>default presentation request</a> if

any,<code>null</code> otherwise. On setting, the<a>default

presentation request</a> MUST be set to the new value.

The<dfnfor="Presentation"><code>receiver</code></dfn> attribute

The<dfndata-dfn-for="Presentation"><code>receiver</code></dfn> attribute

MUST return the<a><code>PresentationReceiver</code></a> instance

associated with the<a>receiving browsing context</a> and created

by the<a>receiving user agent</a> when the<a>receiving browsing

Selecting a presentation display

When the<code><dfnfor="PresentationRequest">start</dfn></code>

When the<code><dfndata-dfn-for="PresentationRequest">start</dfn></code>

method is called, the<a>user agent</a> MUST run the following

steps to<dfn>select a presentation display</dfn>.

Reconnecting to a presentation

When the<dfnfor="PresentationRequest">reconnect</dfn> method is

When the<dfndata-dfn-for="PresentationRequest">reconnect</dfn> method is

called, the<a>user agent</a> MUST run the following steps to

<dfn>reconnect to a presentation</dfn>:

attributes, by objects implementing the<a>PresentationRequest</a>

interface:

<tabledfn-for="PresentationRequest">

<tabledata-dfn-for="PresentationRequest">

implemented in a<a>controlling browsing context</a>.

The<dfnfor="PresentationAvailability">value</dfn> attribute MUST

The<dfndata-dfn-for="PresentationAvailability">value</dfn> attribute MUST

return the last value it was set to. The value is initialized and

updated by the<a>monitor the list of available presentation

displays</a> algorithm.

The<dfnfor="PresentationAvailability">onchange</dfn> attribute is

The<dfndata-dfn-for="PresentationAvailability">onchange</dfn> attribute is

an<a>event handler</a> whose corresponding<a>event handler event

type</a> is<dfn><code>change</code></dfn>.

Getting the<a>presentation displays</a> availability information

When the<dfnfor="PresentationRequest">getAvailability</dfn>

When the<dfndata-dfn-for="PresentationRequest">getAvailability</dfn>

method is called, the user agent MUST run the following steps:

when<a>monitoring incoming presentation connections</a>.

The<dfnfor=

The<dfndata-dfn-for=

"PresentationConnectionAvailableEvent">connection</dfn> attribute

MUST return the value it was set to when the

<a>PresentationConnection</a> object was created.

called, the<a>user agent</a> MUST construct a new

<a>PresentationConnectionAvailableEvent</a> object with its<adata-link-for=

"PresentationConnectionAvailableEvent">connection</a> attribute set

to the<dfnfor=

to the<dfndata-dfn-for=

"PresentationConnectionAvailableEventInit">connection</dfn> member

of the<dfn>PresentationConnectionAvailableEventInit</dfn> object

passed to the constructor.

};

<divdfn-for="PresentationConnection"link-for=

<divdata-dfn-for="PresentationConnection"link-for=

"PresentationConnection">

The<dfn><code>id</code></dfn> attribute specifies the

the values of<dfn>PresentationConnectionState</dfn> depending on

the connection state:

<uldfn-for="PresentationConnectionState">

<uldata-dfn-for="PresentationConnectionState">

<dfn>connecting</dfn> means that the user agent is attempting to

<a>establish a presentation connection</a> with the

The<dfn>binaryType</dfn> attribute can take one of the values of

<dfnfor="">BinaryType</dfn>. When a<a>PresentationConnection</a>

<dfndata-dfn-for="">BinaryType</dfn>. When a<a>PresentationConnection</a>

object is created, its<a>binaryType</a> attribute MUST be set to

the string "<alink-for="BinaryType">arraybuffer</a>". On getting,

it MUST return the last value it was set to. On setting, the user

<divclass="note">

The<a>binaryType</a> attribute allows authors to control how

binary data is exposed to scripts. By setting the attribute to

"<dfndfn-for="BinaryType">blob</dfn>", binary data is returned in

<a>Blob</a> form; by setting it to "<dfndfn-for=

"<dfndata-dfn-for="BinaryType">blob</dfn>", binary data is returned in

<a>Blob</a> form; by setting it to "<dfndata-dfn-for=

"BinaryType">arraybuffer</dfn>", it is returned in

<a>ArrayBuffer</a> form. The attribute defaults to

"<code>arraybuffer</code>". This attribute has no effect on data

A<a>PresentationConnectionCloseEvent</a> is fired when a

<a>presentation connection</a> enters a<adata-link-for=

"PresentationConnectionState">closed</a> state. The<dfnfor=

"PresentationConnectionState">closed</a> state. The<dfndata-dfn-for=

"PresentationConnectionCloseEvent">reason</dfn> attribute provides

the reason why the connection was closed. It can take one of the

values of<dfn>PresentationConnectionCloseReason</dfn>:

<uldfn-for="PresentationConnectionCloseReason">

<uldata-dfn-for="PresentationConnectionCloseReason">

<dfn>error</dfn> means that the mechanism for connecting or

communicating with a presentation entered an unrecoverable error.

When the<adata-link-for="PresentationConnectionCloseEvent">reason</a>

attribute is<adata-link-for="PresentationConnectionCloseReason">error</a>,

the user agent SHOULD set the<dfnfor=

the user agent SHOULD set the<dfndata-dfn-for=

"PresentationConnectionCloseEvent">message</dfn> attribute to a

human readable description of how the communication channel

encountered an error.

called, the<a>user agent</a> MUST construct a new

<a>PresentationConnectionCloseEvent</a> object, with its<adata-link-for=

"PresentationConnectionCloseEvent">reason</a> attribute set to the

<dfnfor="PresentationConnectionCloseEventInit">reason</dfn> member

<dfndata-dfn-for="PresentationConnectionCloseEventInit">reason</dfn> member

of the<dfn>PresentationConnectionCloseEventInit</dfn> object

passed to the constructor, and its<adata-link-for=

"PresentationConnectionCloseEvent">message</a> attribute set to the

<dfnfor="PresentationConnectionCloseEventInit">message</dfn>

<dfndata-dfn-for="PresentationConnectionCloseEventInit">message</dfn>

member of this<a>PresentationConnectionCloseEventInit</a> object

if set, to an empty string otherwise.

attributes, by objects implementing the

<a>PresentationConnection</a> interface:

<tabledfn-for="PresentationConnection">

<tabledata-dfn-for="PresentationConnection">

<dfn><code>onclose</code></dfn>

<dfnfor=

<dfndata-dfn-for=

"PresentationConnectionEvent"><code>close</code></dfn>

<dfn><code>onterminate</code></dfn>

<dfnfor=

<dfndata-dfn-for=

"PresentationConnectionEvent"><code>terminate</code></dfn>

<a>receiving user agent</a>.

On getting, the<dfnfor="PresentationReceiver">connectionList</dfn>

On getting, the<dfndata-dfn-for="PresentationReceiver">connectionList</dfn>

attribute MUST return the result of running the following steps:

The<dfnfor="PresentationConnectionList">connections</dfn> attribute

The<dfndata-dfn-for="PresentationConnectionList">connections</dfn> attribute

MUST return the non-terminated set of<a>presentation connections</a>

in the<a>set of presentation controllers</a>.

attributes, by objects implementing the

<a>PresentationConnectionList</a> interface:

<tabledfn-for="PresentationConnectionList">

<tabledata-dfn-for="PresentationConnectionList">