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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* 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
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* $Id$ */
package org.apache.fop.fo.extensions;
import java.util.HashMap;
import java.util.Set;
import org.apache.xmlgraphics.util.QName;
import org.apache.fop.fo.ElementMapping;
import org.apache.fop.fo.FONode;
import org.apache.fop.fo.UnknownXMLObj;
import org.apache.fop.fo.extensions.destination.Destination;
/**
* Element mapping for FOP's proprietary extension to XSL-FO.
*/
public class ExtensionElementMapping extends ElementMapping {
/** The FOP extension namespace URI */
public static final String URI = "http://xmlgraphics.apache.org/fop/extensions";
private static final Set propertyAttributes = new java.util.HashSet();
static {
//These are FOP's standard extension properties (fox:*)
propertyAttributes.add("block-progression-unit");
propertyAttributes.add("widow-content-limit");
propertyAttributes.add("orphan-content-limit");
propertyAttributes.add("internal-destination");
}
/**
* Constructor.
*/
public ExtensionElementMapping() {
namespaceURI = URI;
}
/**
* Initialize the data structures.
*/
protected void initialize() {
if (foObjs == null) {
foObjs = new HashMap();
foObjs.put("outline", new UnknownXMLObj.Maker(URI));
foObjs.put("label", new UnknownXMLObj.Maker(URI));
foObjs.put("destination", new DestinationMaker());
foObjs.put("external-document", new ExternalDocumentMaker());
}
}
static class DestinationMaker extends ElementMapping.Maker {
public FONode make(FONode parent) {
return new Destination(parent);
}
}
static class ExternalDocumentMaker extends ElementMapping.Maker {
public FONode make(FONode parent) {
return new ExternalDocument(parent);
}
}
/** {@inheritDoc} */
public String getStandardPrefix() {
return "fox";
}
/** {@inheritDoc} */
public boolean isAttributeProperty(QName attributeName) {
if (!URI.equals(attributeName.getNamespaceURI())) {
throw new IllegalArgumentException("The namespace URIs don't match");
}
return propertyAttributes.contains(attributeName.getLocalName());
}
}
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