| /******************************************************************************* |
| * Copyright (c) 2004, 2005 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.wst.html.core.internal.htmlcss; |
| |
| |
| |
| import org.eclipse.wst.css.core.internal.provisional.adapters.IStyleSelectorAdapter; |
| import org.eclipse.wst.sse.core.internal.provisional.INodeAdapter; |
| import org.eclipse.wst.sse.core.internal.provisional.INodeAdapterFactory; |
| import org.eclipse.wst.sse.core.internal.provisional.INodeNotifier; |
| |
| /** |
| * Insert the type's description here. |
| */ |
| public class HTMLStyleSelectorAdapterFactory implements INodeAdapterFactory { |
| |
| private static HTMLStyleSelectorAdapterFactory instance; |
| private Object toMatch = IStyleSelectorAdapter.class; |
| |
| /** |
| * CSSModelProvideAdapterFactory constructor comment. |
| */ |
| public HTMLStyleSelectorAdapterFactory() { |
| super(); |
| } |
| |
| /** |
| * Method that returns the adapter associated with the given object. |
| * It may be a singleton or not ... depending on the needs of the INodeAdapter ... |
| * but in general it is recommended for an adapter to be stateless, |
| * so the efficiencies of a singleton can be gained. |
| * |
| * The implementation of this method should call addAdapter on the adapted |
| * object with the correct instance of the adapter. |
| */ |
| public INodeAdapter adapt(INodeNotifier notifier) { |
| INodeAdapter adapter = notifier.getExistingAdapter(IStyleSelectorAdapter.class); |
| if (adapter != null) |
| return adapter; |
| adapter = HTMLStyleSelectorAdapter.getInstance(); |
| notifier.addAdapter(adapter); |
| return adapter; |
| } |
| |
| public synchronized static HTMLStyleSelectorAdapterFactory getInstance() { |
| if (instance == null) |
| instance = new HTMLStyleSelectorAdapterFactory(); |
| return instance; |
| } |
| |
| /** |
| * isFactoryForType method comment. |
| */ |
| public boolean isFactoryForType(Object type) { |
| return type == toMatch; |
| } |
| |
| public void release() { |
| // default is to do nothing |
| } |
| |
| /** |
| * Overriding copy method |
| */ |
| public INodeAdapterFactory copy() { |
| return getInstance(); |
| } |
| |
| } |