X-Smiles 1.1 features

Feature table

The following table briefly lists all the main features of the browser. Click on the links to see more detailed feature lists.

Feature	Notes
XML Parsing	Using any JAXP+namespace capable parser or transformer (e.g. Xerces/Xalan)
XSLT Transforms
SMIL 2.0 Basic	X-Smiles feature
XForms	X-Smiles feature
Cascading Stylesheets (CSS)	X-Smiles feature
XML + CSS Renderer	X-Smiles feature
XHTML 2.0	X-Smiles feature
XSL Formatting Objects	Using FOP as the layout/renderer.
SVG	Using CSIRO SVG viewer.
X3D	Extension: Using Xj3D Open Source VRML/X3D Toolkit.
XML Signature	Extension: Using Apache XML Security
XML Events	Experimental X-Smiles feature
ECMAScript	Using Rhino engine.
Multiple GUI support/skins	X-Smiles feature
SIP Videoconferencing	X-Smiles feature (using JMF)
Timesheets	X-Smiles feature
XBL 2.0	X-Smiles feature

Please see release.txt for release specific details.

SMIL

This is an implementation of SMIL 2.0 Basic Profile. Also, some additional modules have been implemented. Check the table below for some missing features.

1. Supported features

Feature	Support	Notes
SMIL 2.0 Basic
Structure Module
<smil>	Yes	id, class, xml:lang and title attrs ignored.
<head>	Yes	id, class, xml:lang and title ignored.
<body>	Yes	id, class, xml:lang and title attrs ignored.
BasicContentControl Module
systemAttributes	Yes
<switch>	Yes
Test Attribute In-line use	Yes
SkipContentControl Module
skip-content attr.	No
Metainformation Module
<meta>	Yes
<metadata>	Yes
BasicLayout Module
<layout>	Yes
<region>	Yes
<root-layout>	Yes
region attr.	Yes	Does not render in multiple regions.
BasicLinking Module
<a>	Partially	Timing not resolved completely when a link is followed.
<area> (<anchor>)	Partially	nohref, shape attr. missing. No precedence for overlapping areas. See also <a> element.
BasicMedia Module
<ref>, <animation>, <audio>, <img>, <text>, <textstream> and <video>	Yes	XMLBase namespace not understood.
BasicInlineTiming Module
dur attr.	Yes
begin attr.	Partially	Negative offsets don't work with repeats.
end attr.	Yes
MinMaxTiming Module
min attr.	Partially	'media' value not done.
max attr.	Partially	'media' value not done.
BasicTimeContainers Module
<seq>	Partially	begin attr can be negative.
<par>	Yes
fill attr.	Yes	"transition" works like "freeze". "freeze" does not fill gaps between media in <seq>.
endsync attr.	Yes	SMIL 1.0 id values not supported.
RepeatTiming Module
repeatDur attr.	Yes
repeatCount attr.	Partially	Can handle only integers if dur is not specified.
repeat attr.	Partially	SMIL 1.0 repeat attr mapped to use repeatCount.
SyncbaseTiming Module
begin attr.	Partially	Works only between sibling elements.
end attr.	Partially	Works only between sibling elements.
Other modules
EventTiming Module
begin attr.	Yes
end attr.	Yes
CustomTestAttributes Module
<customAttributes>	Yes
<customTest>	Partially	override attribute missing.
customTest attr.	Yes
BrushMedia Module
<brush>	Yes	inherit attr. is prohibited
BasicAnimation Module
<animate>	Yes
<set>	Yes
<animateMotion>	Yes
<animateColor>	Yes
MultiWindowLayout Module
<topLayout>	Yes
EventTiming Module
<begin end attr.>	Partially	Special cases won't work (restart etc.).
Supported media
Text	Java	plain text, very simple xhtml with CSS style for fonts+colors
Image	Java	GIF (transparent & animated), JPEG and PNG (transparent)
Audio	Java	Ogg Vorbis (streamed)
Audio	JMF	AIFF, AU, AVI, GSM, MIDI, MP2, MP3, QT, RMF and WAV
Video	JMF	AVI, MPEG-1, QT, H.261 and H.263
Other	XML	SMIL, XSL FO and SVG

2. Animation

The following target elements can be animated by the implemented BasicAnimation Module. Note that SplineAnimation Module has not been implemented.

Elements	Target Element	Target Attributes
animate	region	left, right, top, bottom, width, height, backgroundColor (z-index and regionName missing)
	area (anchor)	Not supported (coords missing)
	text, img, audio, animation, video, ref, textstream	Not supported (HierarchicalLayout Module missing)
	brush	color (HierarchicalLayout Module missing)
set	region	left, right, top, bottom, width, height, backgroundColor (z-index and regionName missing)
	area (anchor)	Not supported (coords missing)
	text, img, audio, animation, video, ref, textstream	Not supported (HierarchicalLayout Module missing)
	brush	color (HierarchicalLayout Module missing)
animateMotion	region	left, top
animateMotion	text, img, audio, animation, video, ref, textstream	Not supported (HierarchicalLayout Module missing)
animateColor	region	backgroundColor
	text, img, audio, animation, video, ref, textstream	Not supported (HierarchicalLayout Module missing)
	brush	color

3. Events

Currently, the elements send the following events. These can be listened by EventTiming module or XML Events.

Event	Notes
beginEvent	When an element starts. No bubbling.
endEvent	When an element ends. No bubbling.
repeatEvent	When an element repeats. No bubbling.
activateEvent	When an element is clicked. No bubbling.
inBoundsEvent	When mouse enters over an element. No bubbling.
outOfBoundsEvent	When mouse moves out of an element. No bubbling.
topLayoutOpenEvent	SMIL MultiWindowLayout event. When a toplayout opens. No bubbling.
topLayoutCloseEvent	SMIL MultiWindowLayout event. When a toplayout closes. No bubbling.
click	DOM Mouse Event. When an element is clicked. Bubbles.
mouseover	DOM Mouse Event. When mouse moves over an element. Bubbles.
mouseout	DOM Mouse Event. When mouse moves out of an element. Bubbles.
mousedown	DOM Mouse Event. When mouse button is pressed. Bubbles.
mouseup	DOM Mouse Event. When mouse button is released. Bubbles.

4. Dynamic SMIL

An extended SMIL-DOM is supported. Also, the following methods can be used to begin and end elements in scripts.

beginElement()
beginElementAt(int)
endElement()
endElementAt(int)

5. Notes

For details about supported media formats when using JMF 2.1.1, see JMF 2.1.1 Supported Formats.
Ogg Vorbis is supported without JMF. The media is streamed. It won't work if JMF has been used. Player implemented by JCraft, www.jcraft.com
rtsp protocol can be used within SMIL docs, but rtsp tunneling via http is not supported.
Links into middle of a document causes errors - the parent time containers will not know the correct position. The links also confuse the end of the SMIL presentation.
Syncbase timing (id.begin+2s) works only between sibling elements, not over time containers.
SMIL 1.0 support is minimal. SMIL 1.0 id values not supported. SMIL 1.0 system attributes do work.
repeat attribute doesn't work as SMIL 1.0 specification defines it.
SMIL basic layout language is supported. Also, alternative CSS layout model (type="text/css") is supported.
There is no strict validation for the SMIL files.
Scripting is possible using XML Events. See the demo for details.
Note: XPointer doesn't work in links (not required by the spec).
To use the standalone SMIL players, see the instructions.
systemComponent attribute currently understands one URI: "http://www.x-smiles.org".
The meta element's base attribute is supported. XMLBase attribute is not implemented.
Element restart behaviour is not well supported.

XForms

See the XForms features document.

SVG

1. Supported features

SVG (Scalable Vector Graphics) is supported in X-Smiles by an embedded viewer. This viewer is the August 6th 2000 release of the CSIRO SVG Toolkit (open source). It supports the W3C SVG Candidate Recommendation (2 Aug 2000).

X3D

1. Supported features

X3D (Extensible 3D Graphics) is supported in X-Smiles by an embedded viewer. This viewer is the M4 release of the Xj3D Open Source VRML/X3D Toolkit (open source). It supports the Web3D X3D Specification. See the Xj3D web site for details about the viewer.

Note that viewing X3D documents requires installing the Java3D package, see installation for details.

Displaying X3D documents also requires installing an Extension MLFC.

Cascading Stylesheets

See CSS implementation chart.

XHTML

XHTML Basic implementation chart.

XHTML 2.0 implementation chart.

SIP

Supported features:

Authentication:

Only Digest authentication with MD5 algorithm is supported.

Registration:

Registration to proxyserver is supported.

Calls:

Basic calls with or without proxies are supported. This includes unsuccesfull call attempts (busy, declined and canceled calls)

RTP streams:

Videocapturing and sound capturing. Can send H263/RTP and GSM streams. Can receive ulaw,gsm, G723, DVI, JPEG and H263 RTP streams.

Calls and server registration&authentication have been tested with sip.sipcenter.com server and Columbia University's SIPC.

Testing instructions:

As a standalone application:

java fi.hut.tml.xsmiles.sip.SipXSmilesClient username (audioport) (videoport) (videoCapture) (servername) (passwd), where videoCapture is true or false and servername + passwd makes this program to operate with proxy.

Default values are:
audioport = 2000
videoport=3000
videoCapture=false

With xsmiles:

Open 'sip.fo' page.

XML Events

X-Smiles has full implementation of the XML Events Last Call Working Draft.

For examples, see the SMIL/XForms scripting demos.

The scripting language used is EcmaScript, see below.

EcmaScript

X-Smiles uses an embedded Rhino EcmaScript interpreter to evaluate EcmaScript in the documents.

EcmaScript binding for DOM level 2 is provided:

textnode = document.getElementsByTagName("name").item(0).getFirstChild();
textelem.setNodeValue("Changed by ECMAScript");

SMIL supports changing most of the attributes. Timing attributes should not be changed.

XForms supports interactively changing the instance data and most of the mouse events.

SVG supports complete interactivity.

XSLFO does not currently support interactively changing the document.

Browser object.

browser.alert("Alert from ECMAScript");
browser.print("debug");
browser.println("debug");
browser.navigate("http://www.x-smiles.org/")

Navigator object.

As in other browsers.

XSL Formatting Objects

1. General

XSL Formatting Objects are supported with the Apache FOP viewer as the basis. Currently the version 0.20.1 is used. FOP supports the November 2000 W3C Candidate Recommendation with some limitations.

2. Limitations

The viewer has the limitations concerning XSL FO listed in FOP' s limitations.

The limitations of FOP itself include:

FOP's AWTRenderer is a previewer, which prints contents one page at the time to a graphics object. Therefore changing content after rendering or using an active background would need rewrite of the renderer to use awt/swing components.
Scripting is not supported. Adding script support could be laborious, because DOM tree is no longer visible to the renderer, which handles the FOP Area Tree.

3. Extensions

Limited support of XForms
External basic links (fo:basic-link element with external destination)
Relative URL support in external images
The use of Java font metrics instead of PDF font metrics as in original FOP.
Support of Java 1.1 in the AWT Viewer.

XML and XSLT

X-Smiles supports any JAXP capable namespace-aware XML parser/ XSLT transformer. The tested ones are Xerces parser (2.3.0) and Xalan (2.3.1).

Multiple GUIs / skins

X-Smiles has multiple GUIs (Phone, Mobile, FTV and Tabbed) and supports the changing of GUI's while running. It is even possible to change GUI while watching a SMIL presentation.

Timesheets

X-Smiles has an implementation of Timesheets. It is based on a paper by Kate, W. et. al. and SMIL 2.0.

The implementation supports sequential, parallel and exclusive time containers, prefetching the contents, repeating, dispatching and listening to XMLEvents and setting a certain CSS pseudo-class to an element (class attribute of <item>)

Feature	Attributes	Notes
<timesheet>	-	Root element
Time containers
<seq>	begin, dur, repeat	Sequential time container
<par>	begin, dur, repeat	Parallel time container
<excl>	begin, dur, repeat	Exclusive time container
Item element
<item>	select, prefetch, class, begin, dur, repeat	Item element

A short example of Timesheets. There's a few more in the demos of X-Smiles

<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:time="http://www.x-smiles.org/2004/timesheet" 
      xmlns:ev="http://www.w3.org/2001/xml-events">

  <head>

    <time:timesheet>
      <time:seq>

        <time:par>
          <time:item select="#slide1"/>
          <time:item select="#pagenum1"/>
          <time:item select="#bullet1" begin="2s"/>
          <time:item select="#bullet2" begin="4s"/>
          <time:item select="#bullet3" begin="6s"/>
          <time:item select="#bullet4" begin="8s"/>
          <time:item select="#continue" begin="10s"/>
        </time:par>

        <time:par begin="continue.DOMActivate">
          <time:item select="#slide2"/>
          <time:item select="#pagenum2"/>
          <time:item select="#bullet5" begin="2s"/>
          <time:item select="#bullet6" begin="4s"/>
        </time:par>

      </time:seq>
    </time:timesheet>
  </head>

  <body>
    <div id="slide1">
      <p>Introduction</p>
      <p id="bullet1">o Some intro to WLAN</p>
      <p id="bullet2">o Some intro to WLAN</p>
      <p id="bullet3">- Subbullet</p>
      <p id="bullet4">- Subbullet</p>
      <p id="pagenum1">1</p>
      <a href="" id="continue" ev:event="DOMActivate" 
        ev:defaultAction="cancel">Next slide</a>
    </div>

    <div id="slide2">
      <p>Technology</p>
      <p id="bullet5">o Details about WLAN</p>
      <p id="bullet6">- Subbullet</p>
      <p id="pagenum2">2</p>
    </div>
  </body>
</html>