- From: Mercurial notifier <cvsmail@w3.org>
- Date: Thu, 12 Jul 2012 06:53:49 +0000
- To: public-dap-commits@w3.org
changeset: 145:2e76a92f5350
tag: tip
user: Claes Nilsson <claes1.nilsson@sonymobile.com>
date: Thu Jul 12 08:52:10 2012 +0200
files: wi-addendum-local-services/Example_scenario_1/Slide1.png wi-addendum-local-services/Example_scenario_1/Slide2.png wi-addendum-local-services/Example_scenario_1/Slide3.png wi-addendum-local-services/Example_scenario_2/Slide1.png wi-addendum-local-services/Example_scenario_2/Slide2.png wi-addendum-local-services/Example_scenario_2/Slide3.png wi-addendum-local-services/Example_scenario_2/Slide4.png wi-addendum-local-services/Overview.html
description:
Web Intents addendum for local services: Clarified UA steps for NOTIFY and A.2
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diff -r 7a3d33dc568b -r 2e76a92f5350 wi-addendum-local-services/Overview.html
--- a/wi-addendum-local-services/Overview.html Wed Jul 11 00:16:29 2012 -0400
+++ b/wi-addendum-local-services/Overview.html Thu Jul 12 08:52:10 2012 +0200
@@ -380,25 +380,29 @@
<ol class="rule">
<li>
- The <a>UPnP enabled User Agent</a> maintains a list of announced services based on received SSDP NOTIFY messages
+ The <a>UPnP enabled User Agent</a> maintains a list of announced UPnP services based on received SSDP NOTIFY messages
with <code>NT</code> header equal to <code>urn:schemas-webintents-org:service:WebIntents:1</code>.
</li>
<br />
<li>
When the navigator.startActivity method [[!WEBINTENTS]] is called the <a>UPnP enabled User Agent</a> checks the list
- of of announced services for a service with an <code>action.webintents.org</code> header that matches the Action of the invoked intent.
- </li>
- <br />
- <li>
- For each match the <a>UPnP enabled User Agent</a> attempts to retrieve the Web Intents document document from the discovered <a>Web Intents enabled UPnP device</a>. The <a>UPnP enabled User Agent</a>
- may also attempt to retrieve the Web Intents document for announced services without an <code>action.webintents.org</code> header.
- The location of the Web Intents document is the value of the <code>location.webintents.org</code> header. If this value is a relative URL the
- base URL is the base URL of the <code>LOCATION</code> header.
- <br /> <br />
- If the <a>UPnP enabled User Agent</a> fails to retrieve the Web Intents document it silently disregards the received NOTIFY message.
- <br /> <br />
- If the <code>action.webintents.org</code> header does not match the <code>action</code> attribute in the retrieved Web Intents document
- the <a>UPnP enabled User Agent</a> silently disregards the received NOTIFY message.
+ of of announced services and attempts to retrieve the Web Intents document from the discovered <a>Web Intents enabled UPnP device</a> in the following cases:
+ <ul>
+ <li>
+ The received NOTIFY message contains an <code>action.webintents.org</code> header and this header matches the Action of the invoked intent.
+ </li>
+ <li>
+ The received NOTIFY message does not contain an <code>action.webintents.org</code> header.
+ </li>
+ </ul>
+ <br />
+ The location of the Web Intents document is the value of the <code>location.webintents.org</code> header. If this value is a relative URL the
+ base URL is the base URL of the <code>LOCATION</code> header.
+ <br /> <br />
+ If the <a>UPnP enabled User Agent</a> fails to retrieve the Web Intents document it silently disregards the received NOTIFY message.
+ <br /> <br />
+ If the <code>action.webintents.org</code> header does not match the <code>action</code> attribute in the retrieved Web Intents document
+ the <a>UPnP enabled User Agent</a> silently disregards the received NOTIFY message.
</li>
<br />
<li>
@@ -522,7 +526,13 @@
<h3>View and control video on remote device through Client page control buttons</h3>
<p>
The following scenario describes how a Client page uses Web Intents to discover a remote video view service. The UI stays in the Client page,
- which contains the UI controls for the video playback.
+ which contains the UI controls for the video playback. This means that there is a need for continuous communication between the Client page and the Service page,
+ which is "hidden", i.e. it has no UI. The Client page creates a messaging channel and sends the messaging channel port to the Service page trhrough the intent invocation.
+ A high level "TV control" protocol, supporting commands such as "play", "pause" and "stop, runs on top of the messaging channel.
+ </p>
+ <p>
+ In this example the assumption is that he Client invokes an intent to discover a Service that supports a specified protocol running on top of the message channel So the
+ "discover" intent Action is used and Type is set to the specific protocol used to communicate with the Service.
</p>
<p class="issue">
@@ -576,4 +586,4 @@
</p>
</section>
</body>
-</html>
+</html>
\ No newline at end of file
Received on Thursday, 12 July 2012 06:53:53 UTC