| /******************************************************************************* |
| * Copyright (c) 2009, 2015 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| * Alexander Kurtakov - Bug 460858 |
| *******************************************************************************/ |
| package org.eclipse.help.internal.workingset; |
| |
| import org.eclipse.help.ITopic; |
| import org.w3c.dom.Element; |
| |
| /** |
| * Makes help resources adaptable and persistable |
| */ |
| public class AdaptableSelectedTopic extends AdaptableHelpResource { |
| |
| /** |
| * This constructor will be called when wrapping help resources. |
| */ |
| public AdaptableSelectedTopic(ITopic element) { |
| super(element); |
| } |
| |
| /** |
| * @see org.eclipse.core.runtime.IAdaptable#getAdapter(java.lang.Class) |
| */ |
| @Override |
| @SuppressWarnings("unchecked") |
| public <T> T getAdapter(Class<T> adapter) { |
| if (adapter == ITopic.class) |
| return (T) element; |
| return super.getAdapter(adapter); |
| } |
| |
| @Override |
| public AdaptableHelpResource[] getChildren() { |
| return new AdaptableHelpResource[0]; |
| } |
| |
| /** |
| * When href is exactly the href of the selected topic, then return the selected topic |
| * Otherwise, return null |
| * |
| * @param href |
| * The topic's href value. |
| */ |
| @Override |
| public ITopic getTopic(String href) { |
| if (href == null) |
| return null; |
| if (href.equals(getHref())) { |
| return (ITopic)element; |
| } |
| return null; |
| } |
| |
| @Override |
| public void saveState(Element element) { |
| |
| } |
| } |