Widgets Meetup, London, 13 Oct 2009 Wookies and Widgets Scott Wilson (University of Bolton) Scott. bradley [email_address] Twitter: scottbw

Wookie is not a clever acronym (so if you spell it WOOKIE you’re shouting!)

Apache Wookie (incubating) Entered incubator July ‘09 originally developed in Framework 6 IP Funded projects tend to build prototypes, not communities http://incubator.apache.org/wookie/

Entered incubator July ‘09

originally developed in Framework 6 IP

Funded projects tend to build prototypes, not communities

http://incubator.apache.org/wookie/

How Wookie Works Servlet, runs in Tomcat or Jetty Provides REST API for applications to access widgets using a plug-in Provides JavaScript API objects for widgets at runtime Admin UI for installing and managing W3C Widgets Server-side storage, and push events

Servlet, runs in Tomcat or Jetty

Provides REST API for applications to access widgets using a plug-in

Provides JavaScript API objects for widgets at runtime

Admin UI for installing and managing W3C Widgets

Server-side storage, and push events

Wookie REST API GET /widgets gets the list of widgets installed POST /widgetinstances instantiates a widget POST /participants adds a participant to a widget instance Lots more at http://incubator.apache.org/wookie/wookie-rest-api.html

GET /widgets gets the list of widgets installed

POST /widgetinstances instantiates a widget

POST /participants adds a participant to a widget instance

Lots more at http://incubator.apache.org/wookie/wookie-rest-api.html

Typical lifecycle GET /widgets -> render as a gallery for the user to pick which one to add POST /widgetinstances -> create an instance of the widget for the user, returns the URI and widget height/width POST /participants -> add user as a participant in the instance Create iframe with src, height and width set

GET /widgets -> render as a gallery for the user to pick which one to add

POST /widgetinstances -> create an instance of the widget for the user, returns the URI and widget height/width

POST /participants -> add user as a participant in the instance

Create iframe with src, height and width set

Plugins LAMS Moodle Wordpress (needs improving) Elgg 1.0 (needs improving)

LAMS

Moodle

Wordpress (needs improving)

Elgg 1.0 (needs improving)

Widget APIs < feature name= &quot;http://wave.google.com&quot; required= &quot;true&quot; /> W3C Widget Object (default) Google Wave Gadget API Bondi camera API SCORM CMI API … anything else!

< feature name= &quot;http://wave.google.com&quot; required= &quot;true&quot; />

W3C Widget Object (default)

Google Wave Gadget API

Bondi camera API

SCORM CMI API

… anything else!

Shindig integration Basic integration, adds Shindig servlet in install Wookie generates tokens for shindig opensocial applications Wookie handles getPref/setPref using W3C Widget object Doesn’t handle Shindig data interface Needs more work!

Basic integration, adds Shindig servlet in install

Wookie generates tokens for shindig opensocial applications

Wookie handles getPref/setPref using W3C Widget object

Doesn’t handle Shindig data interface

Needs more work!

Proposed features Inter-widget communications (IWC) More bondi/DAP APIs

Inter-widget communications (IWC)

More bondi/DAP APIs

Anatomy of a Widget Config.xml <- W3C Widgets P&C Spec Icon HTML start file JavaScript code Zip it up, change ext to .wgt, and you’re done

Config.xml <- W3C Widgets P&C Spec

Icon

HTML start file

JavaScript code

Zip it up, change ext to .wgt, and you’re done

A Silly Example: config.xml <?xml version = &quot;1.0&quot; encoding = &quot;utf-8&quot; ? > < widget xmlns= &quot;http://www.w3.org/ns/widgets&quot; id= &quot;http://www.getwookie.org/widgets/tea&quot; version = &quot;1.0” height= &quot;150” width= &quot;125&quot; > < name > Tea </ name > < description > A silly Tea widget </ description > < icon src= &quot;tea.jpg&quot; /> < content src= &quot;index.htm&quot; /> < feature name= &quot;http://wave.google.com&quot; required= &quot;true&quot; /> < author > Scott Wilson </ author > </ widget >

<?xml version = &quot;1.0&quot; encoding = &quot;utf-8&quot; ? >

< widget xmlns= &quot;http://www.w3.org/ns/widgets&quot; id= &quot;http://www.getwookie.org/widgets/tea&quot; version = &quot;1.0” height= &quot;150” width= &quot;125&quot; >

< name > Tea </ name >

< description > A silly Tea widget </ description >

< icon src= &quot;tea.jpg&quot; />

< content src= &quot;index.htm&quot; />

< feature name= &quot;http://wave.google.com&quot; required= &quot;true&quot; />

< author > Scott Wilson </ author >

</ widget >

A Silly Example: HTML & JS <html> <body onload = &quot;document.getElementById(‘name’).innerText=wave.getViewer().getDisplayName()&quot; > <img src = &quot;tea.jpg&quot; /> <p style = &quot;font-size:9pt&quot; > Time for a break, <span id = &quot;name&quot; > mate </span></p> </body> </html>

<html>

<body onload = &quot;document.getElementById(‘name’).innerText=wave.getViewer().getDisplayName()&quot; >

<img src = &quot;tea.jpg&quot; />

<p style = &quot;font-size:9pt&quot; > Time for a break, <span id = &quot;name&quot; > mate </span></p>

</body>

</html>

Cooler example: webcam <html > <head> <script> function takePicture(){ var camera = bondi.camera.getCameras()[ 0 ]; camera.takePicture(function(x){document.getElementById(&quot;picture&quot;).src=x;},function(){alert( &quot;nope&quot; );}); } </script> </head> <body> <button onclick = &quot;takePicture()&quot; > Take Picture </button> <img id = &quot;picture&quot; src = &quot;&quot; width = &quot;64&quot; height = &quot;64&quot; /> </body> </html>

<html >

<head>

<script>

function takePicture(){

var camera = bondi.camera.getCameras()[ 0 ]; camera.takePicture(function(x){document.getElementById(&quot;picture&quot;).src=x;},function(){alert( &quot;nope&quot; );}); }

</script>

</head>

<body>

<button onclick = &quot;takePicture()&quot; > Take Picture </button>

<img id = &quot;picture&quot; src = &quot;&quot; width = &quot;64&quot; height = &quot;64&quot; />

</body>

</html>

Future stuff Wookie hosting? UK/EU App Store? SocialSite integration Better Shindig integration OpenAjax stuff?

Wookie hosting? UK/EU App Store?

SocialSite integration

Better Shindig integration

OpenAjax stuff?

Get involved! Send subscribe message to [email_address] Submit issue reports, feature requests, patches: http://issues.apache.org/jira/browse/WOOKIE

Send subscribe message to [email_address]

Submit issue reports, feature requests, patches: http://issues.apache.org/jira/browse/WOOKIE