/** Auxiliary method for dispatchSVGLoad. */
protected void dispatchSVGLoad(Element elt, boolean checkCanRun, String lang) {
for (Node n = elt.getFirstChild(); n != null; n = n.getNextSibling()) {
if (n.getNodeType() == Node.ELEMENT_NODE) {
dispatchSVGLoad((Element) n, checkCanRun, lang);
}
}
DocumentEvent de = (DocumentEvent) elt.getOwnerDocument();
AbstractEvent ev = (AbstractEvent) de.createEvent("SVGEvents");
String type;
if (bridgeContext.isSVG12()) {
type = "load";
} else {
type = "SVGLoad";
}
ev.initEventNS(XMLConstants.XML_EVENTS_NAMESPACE_URI, type, false, false);
NodeEventTarget t = (NodeEventTarget) elt;
final String s = elt.getAttributeNS(null, SVGConstants.SVG_ONLOAD_ATTRIBUTE);
if (s.length() == 0) {
// No script to run so just dispatch the event to DOM
// (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
}
DocumentLoader dl = bridgeContext.getDocumentLoader();
SVGDocument d = (SVGDocument) elt.getOwnerDocument();
int line = dl.getLineNumber(elt);
final String desc =
Messages.formatMessage(
EVENT_SCRIPT_DESCRIPTION,
new Object[] {d.getURL(), SVGConstants.SVG_ONLOAD_ATTRIBUTE, new Integer(line)});
EventListener l =
new EventListener() {
public void handleEvent(Event evt) {
try {
Object event;
if (evt instanceof ScriptEventWrapper) {
event = ((ScriptEventWrapper) evt).getEventObject();
} else {
event = evt;
}
interp.bindObject(EVENT_NAME, event);
interp.bindObject(ALTERNATE_EVENT_NAME, event);
interp.evaluate(new StringReader(s), desc);
} catch (IOException io) {
} catch (InterpreterException e) {
handleInterpreterException(e);
}
}
};
t.addEventListenerNS(XMLConstants.XML_EVENTS_NAMESPACE_URI, type, l, false, null);
t.dispatchEvent(ev);
t.removeEventListenerNS(XMLConstants.XML_EVENTS_NAMESPACE_URI, type, l, false);
}
/** Tries to build a GVTFontFamily from a URL reference */
protected GVTFontFamily getFontFamily(BridgeContext ctx, ParsedURL purl) {
String purlStr = purl.toString();
Element e = getBaseElement(ctx);
SVGDocument svgDoc = (SVGDocument) e.getOwnerDocument();
String docURL = svgDoc.getURL();
ParsedURL pDocURL = null;
if (docURL != null) pDocURL = new ParsedURL(docURL);
// try to load an SVG document
String baseURI = AbstractNode.getBaseURI(e);
purl = new ParsedURL(baseURI, purlStr);
UserAgent userAgent = ctx.getUserAgent();
try {
userAgent.checkLoadExternalResource(purl, pDocURL);
} catch (SecurityException ex) {
// Can't load font - Security violation.
// We should not throw the error that is for certain, just
// move down the font list, but do we display the error or not???
// I'll vote yes just because it is a security exception (other
// exceptions like font not available etc I would skip).
userAgent.displayError(ex);
return null;
}
if (purl.getRef() != null) {
// Reference must be to a SVGFont.
Element ref = ctx.getReferencedElement(e, purlStr);
if (!ref.getNamespaceURI().equals(SVG_NAMESPACE_URI)
|| !ref.getLocalName().equals(SVG_FONT_TAG)) {
return null;
}
SVGDocument doc = (SVGDocument) e.getOwnerDocument();
SVGDocument rdoc = (SVGDocument) ref.getOwnerDocument();
Element fontElt = ref;
if (doc != rdoc) {
fontElt = (Element) doc.importNode(ref, true);
String base = AbstractNode.getBaseURI(ref);
Element g = doc.createElementNS(SVG_NAMESPACE_URI, SVG_G_TAG);
g.appendChild(fontElt);
g.setAttributeNS(XMLConstants.XML_NAMESPACE_URI, "xml:base", base);
CSSUtilities.computeStyleAndURIs(ref, fontElt, purlStr);
}
// Search for a font-face element
Element fontFaceElt = null;
for (Node n = fontElt.getFirstChild(); n != null; n = n.getNextSibling()) {
if ((n.getNodeType() == Node.ELEMENT_NODE)
&& n.getNamespaceURI().equals(SVG_NAMESPACE_URI)
&& n.getLocalName().equals(SVG_FONT_FACE_TAG)) {
fontFaceElt = (Element) n;
break;
}
}
// todo : if the above loop fails to find a fontFaceElt, a null is passed to createFontFace()
SVGFontFaceElementBridge fontFaceBridge;
fontFaceBridge =
(SVGFontFaceElementBridge) ctx.getBridge(SVG_NAMESPACE_URI, SVG_FONT_FACE_TAG);
GVTFontFace gff = fontFaceBridge.createFontFace(ctx, fontFaceElt);
return new SVGFontFamily(gff, fontElt, ctx);
}
// Must be a reference to a 'Web Font'.
try {
return ctx.getFontFamilyResolver().loadFont(purl.openStream(), this);
} catch (Exception ex) {
}
return null;
}
/** Loads the scripts contained in the <script> elements. */
public void loadScripts() {
org.apache.batik.script.Window window = null;
NodeList scripts =
document.getElementsByTagNameNS(
SVGConstants.SVG_NAMESPACE_URI, SVGConstants.SVG_SCRIPT_TAG);
int len = scripts.getLength();
if (len == 0) {
return;
}
for (int i = 0; i < len; i++) {
AbstractElement script = (AbstractElement) scripts.item(i);
String type = script.getAttributeNS(null, SVGConstants.SVG_TYPE_ATTRIBUTE);
if (type.length() == 0) {
type = SVGConstants.SVG_SCRIPT_TYPE_DEFAULT_VALUE;
}
//
// Java code invocation.
//
if (type.equals(SVGConstants.SVG_SCRIPT_TYPE_JAVA)) {
try {
String href = XLinkSupport.getXLinkHref(script);
ParsedURL purl = new ParsedURL(script.getBaseURI(), href);
checkCompatibleScriptURL(type, purl);
DocumentJarClassLoader cll;
URL docURL = null;
try {
docURL = new URL(docPURL.toString());
} catch (MalformedURLException mue) {
/* nothing just let docURL be null */
}
cll = new DocumentJarClassLoader(new URL(purl.toString()), docURL);
// Get the 'Script-Handler' entry in the manifest.
URL url = cll.findResource("META-INF/MANIFEST.MF");
if (url == null) {
continue;
}
Manifest man = new Manifest(url.openStream());
String sh;
sh = man.getMainAttributes().getValue("Script-Handler");
if (sh != null) {
// Run the script handler.
ScriptHandler h;
h = (ScriptHandler) cll.loadClass(sh).newInstance();
if (window == null) {
window = createWindow();
}
h.run(document, window);
}
sh = man.getMainAttributes().getValue("SVG-Handler-Class");
if (sh != null) {
// Run the initializer
EventListenerInitializer initializer;
initializer = (EventListenerInitializer) cll.loadClass(sh).newInstance();
if (window == null) {
window = createWindow();
}
initializer.initializeEventListeners((SVGDocument) document);
}
} catch (Exception e) {
if (userAgent != null) {
userAgent.displayError(e);
}
}
continue;
}
//
// 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 = null;
if (href.length() > 0) {
desc = href;
// External script.
ParsedURL purl = new ParsedURL(script.getBaseURI(), href);
checkCompatibleScriptURL(type, purl);
InputStream is = purl.openStream();
String mediaType = purl.getContentTypeMediaType();
String enc = purl.getContentTypeCharset();
if (enc != null) {
try {
reader = new InputStreamReader(is, enc);
} catch (UnsupportedEncodingException uee) {
enc = null;
}
}
if (reader == null) {
if (APPLICATION_ECMASCRIPT.equals(mediaType)) {
// No encoding was specified in the MIME type, so
// infer it according to RFC 4329.
if (purl.hasContentTypeParameter("version")) {
// Future versions of application/ecmascript
// are not supported, so skip this script
// element if the version parameter is present.
continue;
}
PushbackInputStream pbis = new PushbackInputStream(is, 8);
byte[] buf = new byte[4];
int read = pbis.read(buf);
if (read > 0) {
pbis.unread(buf, 0, read);
if (read >= 2) {
if (buf[0] == (byte) 0xff && buf[1] == (byte) 0xfe) {
if (read >= 4 && buf[2] == 0 && buf[3] == 0) {
enc = "UTF32-LE";
pbis.skip(4);
} else {
enc = "UTF-16LE";
pbis.skip(2);
}
} else if (buf[0] == (byte) 0xfe && buf[1] == (byte) 0xff) {
enc = "UTF-16BE";
pbis.skip(2);
} else if (read >= 3
&& buf[0] == (byte) 0xef
&& buf[1] == (byte) 0xbb
&& buf[2] == (byte) 0xbf) {
enc = "UTF-8";
pbis.skip(3);
} else if (read >= 4
&& buf[0] == 0
&& buf[1] == 0
&& buf[2] == (byte) 0xfe
&& buf[3] == (byte) 0xff) {
enc = "UTF-32BE";
pbis.skip(4);
}
}
if (enc == null) {
enc = "UTF-8";
}
}
reader = new InputStreamReader(pbis, enc);
} else {
reader = new InputStreamReader(is);
}
}
} 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);
}
return;
} catch (InterpreterException e) {
System.err.println("InterpExcept: " + e);
handleInterpreterException(e);
return;
} catch (SecurityException e) {
if (userAgent != null) {
userAgent.displayError(e);
}
}
}
}