Examples of org.apache.batik.script.Interpreter

org.apache.batik.script.Interpreter
An hight level interface that represents an interpreter engine of a particular scripting language. @author Christophe Jolif @version $Id: Interpreter.java,v 1.5 2002/04/30 15:05:18 vhardy Exp $

        String language = null;
        Element selement = null;
        for (int i = 0; i < list.getLength(); i++) {
            language = (selement = (Element)list.item(i)).
                getAttribute("type");
            final Interpreter interpret =
                ctx.getInterpreterPool().getInterpreter(doc, language);
            if (interpret != null) {
                final StringBuffer script = new StringBuffer();
                for (Node n = selement.getFirstChild(); n != null;
                     n = n.getNextSibling()) {
                    script.append(n.getNodeValue());
                }
                try {
                    interpret.evaluate
                        (new StringReader(script.toString()));
                } catch (IOException io) {
                    // will never appeared we don't use a file
                } catch (InterpreterException e) {
                    if (ua != null)

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            }


            //
            // Scripting language invocation.
            //
            Interpreter interpreter = getInterpreter(type);
            if (interpreter == null)
                // Can't find interpreter so just skip this script block.
                continue;


            try {
                String href = XLinkSupport.getXLinkHref(script);
                String desc = Messages.getMessage(INLINE_SCRIPT_DESCRIPTION);
                Reader reader;
                if (href.length() > 0) {
                    desc = href;


                    // External script.
                    ParsedURL purl = new ParsedURL
                        (XMLBaseSupport.getCascadedXMLBase(script), href);
                    checkCompatibleScriptURL(type, purl);
                    reader = new InputStreamReader(purl.openStream());
                } else {
                    // Inline script.
                    Node n = script.getFirstChild();
                    if (n != null) {
                        StringBuffer sb = new StringBuffer();
                        while (n != null) {
                            if (n.getNodeType() == n.CDATA_SECTION_NODE
                                || n.getNodeType() == n.TEXT_NODE)
                                sb.append(n.getNodeValue());
                            n = n.getNextSibling();
                        }
                        reader = new StringReader(sb.toString());
                    } else {
                        continue;
                    }
                }


                interpreter.evaluate(reader, desc);


            } catch (IOException e) {
                if (userAgent != null) {
                    userAgent.displayError(e);
                }

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            // (For java presumably).
            t.dispatchEvent(ev);
            return;
        }


        final Interpreter interp = getInterpreter();
        if (interp == null) {
            // Can't load interpreter so just dispatch normal event
            // to the DOM (for java presumably).
            t.dispatchEvent(ev);
            return;
        }


        if (checkCanRun) {
            // Check that it is ok to run embeded scripts
            checkCompatibleScriptURL(lang, docPURL);
            checkCanRun = false; // we only check once for onload handlers
        }


        EventListener l = new EventListener() {
                public void handleEvent(Event evt) {
                    try {
                        interp.bindObject(EVENT_NAME, evt);
                        interp.bindObject(ALTERNATE_EVENT_NAME, evt);
                        interp.evaluate(new StringReader(s));
                    } catch (IOException io) {
                    } catch (InterpreterException e) {
                        handleInterpreterException(e);
                    }
                }

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     */
    public Interpreter getInterpreter(String language) {
        if (document == null) {
            throw new RuntimeException("Unknown document");
        }
        Interpreter interpreter = (Interpreter)interpreterMap.get(language);
        if (interpreter == null) {
            interpreter = interpreterPool.createInterpreter(document, language);
            interpreterMap.put(language, interpreter);
        }
        return interpreter;

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                svgDocument.setCSSEngine(null);
            }
        }
        Iterator iter = interpreterMap.values().iterator();
        while (iter.hasNext()) {
            Interpreter interpreter = (Interpreter)iter.next();
            interpreter.dispose();
        }
        interpreterMap.clear();


        if (focusManager != null) {
            focusManager.dispose();

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    /**
     * Runs an event handler.
     */
    public void runEventHandler(String script, Event evt, 
                                String lang, String desc) {
        Interpreter interpreter = getInterpreter(lang);
        if (interpreter == null)
            return;


        try {
            checkCompatibleScriptURL(lang, docPURL);


            interpreter.bindObject(EVENT_NAME, evt);
            interpreter.bindObject(ALTERNATE_EVENT_NAME, evt);
            interpreter.evaluate(new StringReader(script), desc);
        } catch (IOException ioe) {
            // Do nothing, can't really happen with StringReader
        } catch (InterpreterException ie) {
            handleInterpreterException(ie);
        } catch (SecurityException se) {

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        rq.invokeLater(new Runnable() {
                UpdateManager um = updateManager;
                public void run() {
                    ScriptingEnvironment scriptEnv;
                    scriptEnv = um.getScriptingEnvironment();
                    Interpreter interp;
                    interp    = scriptEnv.getInterpreter();
                    interp.bindObject(REGARD_TEST_INSTANCE, 
                                      host);
                    try {
                        interp.evaluate(REGARD_START_SCRIPT);
                    } catch (InterpreterException ie) {
                        // Could not wait if no start script.
                    }
                }
            });

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     */
    public Interpreter getInterpreter(String language) {
        if (document == null) {
            throw new RuntimeException("Unknown document");
        }
        Interpreter interpreter = (Interpreter)interpreterMap.get(language);
        if (interpreter == null) {
            interpreter = interpreterPool.createInterpreter(document, language);
            interpreterMap.put(language, interpreter);
        }
        return interpreter;

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                svgDocument.setCSSEngine(null);
            }
        }
        Iterator iter = interpreterMap.values().iterator();
        while (iter.hasNext()) {
            Interpreter interpreter = (Interpreter)iter.next();
            if (interpreter != null)
                interpreter.dispose();
        }
        interpreterMap.clear();


        if (focusManager != null) {
            focusManager.dispose();

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            }


            //
            // Scripting language invocation.
            //
            Interpreter interpreter = getInterpreter(type);
            if (interpreter == null)
                // Can't find interpreter so just skip this script block.
                continue;


            try {
                String href = XLinkSupport.getXLinkHref(script);
                String desc = null;
                Reader reader;


                if (href.length() > 0) {
                    desc = href;


                    // External script.
                    ParsedURL purl = new ParsedURL
                        (XMLBaseSupport.getCascadedXMLBase(script), href);


                    checkCompatibleScriptURL(type, purl);
                    reader = new InputStreamReader(purl.openStream());
                } else {
                    checkCompatibleScriptURL(type, docPURL);
                    DocumentLoader dl = bridgeContext.getDocumentLoader();
                    Element e = script;
                    SVGDocument d = (SVGDocument)e.getOwnerDocument();
                    int line = dl.getLineNumber(script);
                    desc = Messages.formatMessage
                        (INLINE_SCRIPT_DESCRIPTION,
                         new Object [] {d.getURL(),
                                        "<"+script.getNodeName()+">", 
                                        new Integer(line)});
                    // Inline script.
                    Node n = script.getFirstChild();
                    if (n != null) {
                        StringBuffer sb = new StringBuffer();
                        while (n != null) {
                            if (n.getNodeType() == Node.CDATA_SECTION_NODE
                                || n.getNodeType() == Node.TEXT_NODE)
                                sb.append(n.getNodeValue());
                            n = n.getNextSibling();
                        }
                        reader = new StringReader(sb.toString());
                    } else {
                        continue;
                    }
                }


                interpreter.evaluate(reader, desc);


            } catch (IOException e) {
                if (userAgent != null) {
                    userAgent.displayError(e);
                }

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org.apache.batik.bridge.BridgeEventSupport

org.apache.batik.bridge.ScriptingEnvironment

org.apache.batik.bridge.svg12.SVG12BridgeContext

org.apache.batik.refimpl.bridge.BridgeEventSupport

org.apache.batik.swing.JSVGCanvasHandler

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