Hi Thomas
Thanks alot for your excellent response. Once I got a better understanding
of how the setDocument(svgDoc) API works I was able to add a listener to
create the binding. All works now. I have included the source of my
example in case anyone else encounters the same problem. Thanks again...
public class SVGScriptApplet extends Applet {
private static class MyCanvas extends JSVGCanvas {
public BridgeContext getBridgeContext() {
return bridgeContext;
}
}
public void init() {
String parser = XMLResourceDescriptor.getXMLParserClassName();
SAXSVGDocumentFactory f = new SAXSVGDocumentFactory(parser);
try{
final MyCanvas canvas = new MyCanvas();
URL url = new URL(getCodeBase(), "3D.svg");
SVGOMDocument svgDoc =
(SVGOMDocument)f.createDocument(url.toString());
canvas.addSVGLoadEventDispatcherListener(new
SVGLoadEventDispatcherAdapter() {
public void svgLoadEventDispatchStarted
(SVGLoadEventDispatcherEvent e) {
Interpreter i =
canvas.getBridgeContext().getInterpreter("text/ecmascript");
i.bindObject("appletHost",
SVGScriptApplet.this);
}
});
canvas.setDocument(svgDoc);
this.add(canvas);
this.setVisible(true);
}catch (Exception e){
System.out.println(e);
}
}
public void doSomething() {
System.out.println("Do something!");
}
}
Regards
Pat
thomas.deweese wrote:
>
> Hi Pat,
>
> patc <[EMAIL PROTECTED]> wrote on 09/04/2007 10:52:06 AM:
>
> The problem with the following code is that when you
> call 'setDocument' the canvas will create a whole new
> BridgeContext, and Ecmascript interpreter so your hard
> work is all forgotten.
>
> To do this right you should register an SVGLoad event
> listener with the canvas. When that is called you should
> be able to bind your object.
>
>> public void init() {
>> String parser = XMLResourceDescriptor.getXMLParserClassName();
>> SAXSVGDocumentFactory f = new SAXSVGDocumentFactory(parser);
>> try{
>> MyCanvas canvas = new MyCanvas();
>> URL url = new URL(getCodeBase(), "3D.svg");
>> SVGOMDocument svgDoc =
>> (SVGOMDocument)f.createDocument(url.toString());
>> canvas.setBridgeContext(svgDoc);
>> // 'Unknown document' exception encountered if the following
> 2
>> lines are not included
>> GVTBuilder builder = new GVTBuilder();
>> builder.build(canvas.getBridgeContext(), svgDoc);
>> Interpreter i =
>> canvas.getBridgeContext().getInterpreter("text/ecmascript");
>> i.bindObject("appletHost", this);
>> canvas.setDocument(svgDoc);
>> }catch (Exception e){
>> System.out.println(e);
>> }
>> }
>> public void doSomething() {
>> System.out.println("Do something!");
>> }
>> }
>>
>> This applet loads the 3D.svg that comes in samples directory of Batik
> 1.7
>> release (in order to keep things simple and easily reproducable).
>>
>> I have updated the 3D.svg file to reference the applet and call
>> 'doSomething()' method:
>>
>> <svg xmlns="http://www.w3.org/2000/svg";
>> xmlns:xlink="http://www.w3.org/1999/xlink";
>> id="body" width="640" height="480" viewBox="0 0 640 480">
>>
>> <script type="text/ecmascript"><![CDATA[
>>
>> .....
>> // Global initialization
>> function startAnimation(evt) {
>> appletHost.doSomething();
>> .....
>> }
>> ....
>>
>> Unfortunately the interpreter does not seem to take note of the mapping
> of
>> type of name 'appletHost' with the applet, and I get the following
>> exception;
>>
>> org.mozilla.javascript.WrappedException: Wrapped
>> org.mozilla.javascript.EcmaError: ReferenceError: "appletHost" is not
>> defined. (Inline <script>
> http://localhost:8080/FO5/applet/3D.svg:-1#107)
>> (Event attribute http://localhost:8080/FO5/applet/3D.svg:-1 onload#1)
>> at
>>
> org.apache.batik.script.rhino.BatikSecurityController.callWithDomain(Unknown
>> Source)
>> at org.mozilla.javascript.Interpreter.interpret(Unknown Source)
>> at org.mozilla.javascript.InterpretedFunction.call(Unknown Source)
>> at org.mozilla.javascript.Interpreter.interpretLoop(Unknown Source)
>> at script(Event attribute http://localhost:8080/FO5/applet/3D.svg:-1
>> onload:1)
>> at org.mozilla.javascript.Interpreter.interpret(Unknown Source)
>> at org.mozilla.javascript.InterpretedFunction.call(Unknown Source)
>> at
> org.apache.batik.script.rhino.BatikSecurityController$1.run(Unknown
>> Source)
>> at java.security.AccessController.doPrivileged(Native Method)
>> at
>>
> org.apache.batik.script.rhino.BatikSecurityController.callWithDomain(Unknown
>> Source)
>> at org.mozilla.javascript.Interpreter.interpret(Unknown Source)
>> at org.mozilla.javascript.InterpretedFunction.call(Unknown Source)
>> at org.mozilla.javascript.ContextFactory.doTopCall(Unknown Source)
>> at org.mozilla.javascript.ScriptRuntime.doTopCall(Unknown Source)
>> at org.mozilla.javascript.InterpretedFunction.exec(Unknown Source)
>> at org.mozilla.javascript.Context.evaluateReader(Unknown Source)
>> at org.apache.batik.script.rhino.RhinoInterpreter$2.run(Unknown
> Source)
>> at org.mozilla.javascript.Context.call(Unknown Source)
>>
>> Not really sure what I am doing wrong. Is there something I am missing?
>>
>> Any help greatly appreciated
>>
>> Pat
>> --
>> View this message in context: http://www.nabble.com/Problem-calling-
>> applet-method-from-script-in-svg-file-tf4378175.html#a12479719
>> Sent from the Batik - Users mailing list archive at Nabble.com.
>>
>>
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