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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