| /* |
| * 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.area; |
| |
| // Java |
| import java.util.List; |
| import java.io.Serializable; |
| |
| /** |
| * Link resolving for resolving internal links. |
| */ |
| public class LinkResolver implements Resolvable, Serializable { |
| |
| private static final long serialVersionUID = -7102134165192960718L; |
| |
| private boolean resolved = false; |
| private String idRef; |
| private Area area; |
| |
| /** |
| * Create a new link resolver. |
| * |
| * @param id the id to resolve |
| * @param a the area that will have the link attribute |
| */ |
| public LinkResolver(String id, Area a) { |
| idRef = id; |
| area = a; |
| } |
| |
| /** |
| * @return true if this link is resolved |
| */ |
| public boolean isResolved() { |
| return resolved; |
| } |
| |
| /** |
| * Get the references for this link. |
| * |
| * @return the String array of references. |
| */ |
| public String[] getIDRefs() { |
| return new String[] {idRef}; |
| } |
| |
| /** |
| * Resolve by adding an internal link to the first PageViewport in the list. |
| * |
| * {@inheritDoc} |
| */ |
| public void resolveIDRef(String id, List<PageViewport> pages) { |
| resolveIDRef(id, pages.get(0)); |
| } |
| |
| /** |
| * Resolve by adding an InternalLink trait to the area |
| * |
| * @param id the target id (should be equal to the object's idRef) |
| * @param pv the PageViewport containing the first area with the given id |
| */ |
| public void resolveIDRef(String id, PageViewport pv) { |
| if (idRef.equals(id) && pv != null) { |
| resolved = true; |
| Trait.InternalLink iLink = new Trait.InternalLink(pv.getKey(), idRef); |
| area.addTrait(Trait.INTERNAL_LINK, iLink); |
| } |
| } |
| } |