/**
* Copyright (c) 2002-2010 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 - Initial API and implementation
*/
package org.eclipse.emf.edit.provider;
import java.util.ArrayList;
import java.util.Collection;
import org.eclipse.emf.common.notify.Adapter;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.notify.Notifier;
import org.eclipse.emf.common.notify.impl.AdapterFactoryImpl;
import org.eclipse.emf.ecore.EObject;
/**
* This is the factory that is used to provide the interfaces needed to support Viewers reflectively.
*/
public class ReflectiveItemProviderAdapterFactory
extends AdapterFactoryImpl
implements ComposeableAdapterFactory, IChangeNotifier, IDisposable
{
/**
* This keeps track of the root adapter factory that delegates to this adapter factory.
*/
protected ComposedAdapterFactory parentAdapterFactory;
/**
* This is used to implement {@link org.eclipse.emf.edit.provider.IChangeNotifier}.
*/
protected IChangeNotifier changeNotifier = new ChangeNotifier();
/**
* This keeps track of all the supported types checked by {@link #isFactoryForType isFactoryForType}.
*/
protected Collection<Object> supportedTypes = new ArrayList<Object>();
/**
* The singleton reflective instance.
*/
protected ReflectiveItemProvider reflectiveItemProviderAdapter;
/**
* This constructs an instance.
*/
public ReflectiveItemProviderAdapterFactory()
{
reflectiveItemProviderAdapter = new ReflectiveItemProvider(this);
supportedTypes.add(IStructuredItemContentProvider.class);
supportedTypes.add(ITreeItemContentProvider.class);
supportedTypes.add(IItemPropertySource.class);
supportedTypes.add(IEditingDomainItemProvider.class);
supportedTypes.add(IItemLabelProvider.class);
supportedTypes.add(ITableItemLabelProvider.class);
}
@Override
public Adapter createAdapter(Notifier target)
{
return reflectiveItemProviderAdapter;
}
/**
* This returns the root adapter factory that contains this factory.
*/
public ComposeableAdapterFactory getRootAdapterFactory()
{
return parentAdapterFactory == null ? this : parentAdapterFactory.getRootAdapterFactory();
}
/**
* This sets the composed adapter factory that contains this factory.
*/
public void setParentAdapterFactory(ComposedAdapterFactory parentAdapterFactory)
{
this.parentAdapterFactory = parentAdapterFactory;
}
/**
* Returns whether this factory is applicable for the type of the object.
* @return whether this factory is applicable for the type of the object.
*/
@Override
public boolean isFactoryForType(Object type)
{
return type instanceof EObject || supportedTypes.contains(type);
}
/**
* This implementation substitutes the factory itself as the key for the adapter.
*/
@Override
public Adapter adapt(Notifier notifier, Object type)
{
return super.adapt(notifier, this);
}
/**
*/
@Override
public Object adapt(Object object, Object type)
{
if (isFactoryForType(type))
{
Object adapter = super.adapt(object, type);
// TODO
if (!(type instanceof Class<?>) /*|| (((Class<?>)type).isInstance(adapter))*/)
{
return adapter;
}
}
return null;
}
/**
* This adds a listener.
*/
public void addListener(INotifyChangedListener notifyChangedListener)
{
changeNotifier.addListener(notifyChangedListener);
}
/**
* This removes a listener.
*/
public void removeListener(INotifyChangedListener notifyChangedListener)
{
changeNotifier.removeListener(notifyChangedListener);
}
/**
* This delegates to {@link #changeNotifier} and to {@link #parentAdapterFactory}.
*/
public void fireNotifyChanged(Notification notification)
{
changeNotifier.fireNotifyChanged(notification);
if (parentAdapterFactory != null)
{
parentAdapterFactory.fireNotifyChanged(notification);
}
}
public void dispose()
{
if (reflectiveItemProviderAdapter != null)
{
reflectiveItemProviderAdapter.dispose();
}
}
}