org.apache.fop.accessibility.DummyStructureTreeEventHandler Maven / Gradle / Ivy
/*
* 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.accessibility;
import java.util.Locale;
import org.xml.sax.Attributes;
/**
* This implementation ignores all structure tree events.
*/
public final class DummyStructureTreeEventHandler implements StructureTreeEventHandler {
/** The singleton instance of this class. */
public static final StructureTreeEventHandler INSTANCE = new DummyStructureTreeEventHandler();
private DummyStructureTreeEventHandler() { }
/** {@inheritDoc} */
public void startPageSequence(Locale locale, String role) {
}
/** {@inheritDoc} */
public void endPageSequence() {
}
/** {@inheritDoc} */
public StructureTreeElement startNode(String name, Attributes attributes, StructureTreeElement parent) {
return null;
}
/** {@inheritDoc} */
public void endNode(String name) {
}
/** {@inheritDoc} */
public StructureTreeElement startImageNode(String name, Attributes attributes, StructureTreeElement parent) {
return null;
}
/** {@inheritDoc} */
public StructureTreeElement startReferencedNode(String name, Attributes attributes, StructureTreeElement parent) {
return null;
}
}