/*****************************************************************************
* Copyright (C) The Apache Software Foundation. All rights reserved. *
* ------------------------------------------------------------------------- *
* This software is published under the terms of the Apache Software License *
* version 1.1, a copy of which has been included with this distribution in *
* the LICENSE file. *
*****************************************************************************/
package org.apache.batik.dom;
import java.io.Serializable;
import org.apache.batik.dom.events.DocumentEventSupport;
import org.apache.batik.dom.util.HashTable;
import org.w3c.dom.DOMImplementation;
/**
* This class implements the {@link org.w3c.dom.DOMImplementation},
* {@link org.w3c.dom.css.DOMImplementationCSS} interfaces.
*
* @author <a href="mailto:stephane@hillion.org">Stephane Hillion</a>
* @version $Id: AbstractDOMImplementation.java,v 1.9 2003/04/11 13:56:01 vhardy Exp $
*/
public abstract class AbstractDOMImplementation
implements DOMImplementation,
Serializable {
/**
* The supported features.
*/
protected final HashTable features = new HashTable();
{
registerFeature("XML", new String[] { "1.0", "2.0" });
registerFeature("Events", "2.0");
registerFeature("MouseEvents", "2.0");
registerFeature("MutationEvents", "2.0");
registerFeature("Traversal", "2.0");
registerFeature("UIEvents", "2.0");
}
/**
* Registers a DOM feature.
*/
protected void registerFeature(String name, Object value) {
features.put(name.toLowerCase(), value);
}
/**
* Creates a new AbstractDOMImplementation object.
*/
protected AbstractDOMImplementation() {
}
/**
* <b>DOM</b>: Implements {@link
* org.w3c.dom.DOMImplementation#hasFeature(String,String)}.
*/
public boolean hasFeature(String feature, String version) {
Object v = features.get(feature.toLowerCase());
if (v == null) {
return false;
}
if (version == null || version.length() == 0) {
return true;
}
if (v instanceof String) {
return version.equals(v);
} else {
String[] va = (String[])v;
for (int i = 0; i < va.length; i++) {
if (version.equals(va[i])) {
return true;
}
}
return false;
}
}
/**
* Creates an DocumentEventSupport object suitable for use with this implementation.
*/
public DocumentEventSupport createDocumentEventSupport() {
return new DocumentEventSupport();
}
}