org.apache.batik.bridge.svg12.SVG12BridgeExtension Maven / Gradle / Ivy
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this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
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http://www.apache.org/licenses/LICENSE-2.0
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distributed under the License is distributed on an "AS IS" BASIS,
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limitations under the License.
*/
package org.apache.batik.bridge.svg12;
import java.util.Collections;
import java.util.Iterator;
import org.apache.batik.bridge.BridgeContext;
import org.apache.batik.bridge.SVGBridgeExtension;
import org.apache.batik.util.SVGConstants;
import org.apache.batik.util.SVG12Constants;
import org.apache.batik.util.XBLConstants;
import org.w3c.dom.Element;
/**
* This is a Service interface for classes that want to extend the
* functionality of the Bridge, to support new tags in the rendering tree.
*
* @author Thomas DeWeese
* @version $Id: SVG12BridgeExtension.java 1733416 2016-03-03 07:07:13Z gadams $
*/
public class SVG12BridgeExtension extends SVGBridgeExtension {
/**
* Return the priority of this Extension. Extensions are
* registered from lowest to highest priority. So if for some
* reason you need to come before/after another existing extension
* make sure your priority is lower/higher than theirs.
*/
public float getPriority() { return 0f; }
/**
* This should return the list of extensions implemented
* by this BridgeExtension.
* @return An iterator containing strings one for each implemented
* extension.
*/
public Iterator getImplementedExtensions() {
return Collections.EMPTY_LIST.iterator();
}
/**
* This should return the individual or company name responsible
* for the this implementation of the extension.
*/
public String getAuthor() {
return "The Apache Batik Team.";
}
/**
* This should contain a contact address (usually an e-mail address).
*/
public String getContactAddress() {
return "[email protected]";
}
/**
* This should return a URL where information can be obtained on
* this extension.
*/
public String getURL() {
return "http://xml.apache.org/batik";
}
/**
* Human readable description of the extension.
* Perhaps that should be a resource for internationalization?
* (although I suppose it could be done internally)
*/
public String getDescription() {
return "The required SVG 1.2 tags";
}
/**
* This method should update the BridgeContext with support
* for the tags in this extension. In some rare cases it may
* be necessary to replace existing tag handlers, although this
* is discouraged.
*
* @param ctx The BridgeContext instance to be updated
*/
public void registerTags(BridgeContext ctx) {
// bridges to handle elements in the SVG namespace
super.registerTags(ctx);
// Bridges for SVG 1.2 elements
ctx.putBridge(new SVGFlowRootElementBridge());
ctx.putBridge(new SVGMultiImageElementBridge());
ctx.putBridge(new SVGSolidColorElementBridge());
ctx.putBridge(new SVG12TextElementBridge());
// Bridges for XBL shadow trees and content elements
ctx.putBridge(new XBLShadowTreeElementBridge());
ctx.putBridge(new XBLContentElementBridge());
// Default bridge to handle bindable elements
ctx.setDefaultBridge(new BindableElementBridge());
// Namespaces to avoid for default bridges
ctx.putReservedNamespaceURI(null);
ctx.putReservedNamespaceURI(SVGConstants.SVG_NAMESPACE_URI);
ctx.putReservedNamespaceURI(XBLConstants.XBL_NAMESPACE_URI);
}
/**
* Whether the presence of the specified element should cause
* the document to be dynamic. If this element isn't handled
* by this BridgeExtension, just return false.
*
* @param e The element to check.
*/
public boolean isDynamicElement(Element e) {
String ns = e.getNamespaceURI();
if (XBLConstants.XBL_NAMESPACE_URI.equals(ns)) {
return true;
}
if (!SVGConstants.SVG_NAMESPACE_URI.equals(ns)) {
return false;
}
String ln = e.getLocalName();
if (ln.equals(SVGConstants.SVG_SCRIPT_TAG)
|| ln.equals(SVG12Constants.SVG_HANDLER_TAG)
|| ln.startsWith("animate")
|| ln.equals("set")) {
return true;
}
return false;
}
}