| /* |
| |
| Copyright 2000-2003 The Apache Software Foundation |
| |
| Licensed 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. |
| |
| */ |
| 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 $Id$ |
| */ |
| |
| 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(); |
| } |
| } |