/**
* 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.tree.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.ecore.EObject;
import org.eclipse.emf.edit.provider.ChangeNotifier;
import org.eclipse.emf.edit.provider.ComposeableAdapterFactory;
import org.eclipse.emf.edit.provider.ComposedAdapterFactory;
import org.eclipse.emf.edit.provider.Disposable;
import org.eclipse.emf.edit.provider.IChangeNotifier;
import org.eclipse.emf.edit.provider.IDisposable;
import org.eclipse.emf.edit.provider.IEditingDomainItemProvider;
import org.eclipse.emf.edit.provider.IItemLabelProvider;
import org.eclipse.emf.edit.provider.IItemPropertySource;
import org.eclipse.emf.edit.provider.INotifyChangedListener;
import org.eclipse.emf.edit.provider.IStructuredItemContentProvider;
import org.eclipse.emf.edit.provider.ITableItemLabelProvider;
import org.eclipse.emf.edit.provider.ITreeItemContentProvider;
import org.eclipse.emf.edit.tree.util.TreeAdapterFactory;
/**
* This is the factory that is used to provide the interfaces needed to support Viewers.
* The adapters generated by this factory convert EMF adapter notifications into calls to {@link #fireNotifyChanged fireNotifyChanged}.
* The adapters also support property sheets.
* Note that most of the adapters are shared among multiple instances.
*
* @generated modifiable
*/
public class TreeItemProviderAdapterFactory
extends
TreeAdapterFactory
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 is used to implement {@link org.eclipse.emf.edit.provider.IDisposable}.
*/
protected Disposable disposable = new Disposable();
/**
* This keeps track of all the supported types checked by {@link #isFactoryForType isFactoryForType}.
*/
protected Collection<Object> supportedTypes = new ArrayList<Object>();
/**
* This constructs an instance.
*/
public TreeItemProviderAdapterFactory()
{
supportedTypes.add(IStructuredItemContentProvider.class);
supportedTypes.add(ITreeItemContentProvider.class);
supportedTypes.add(IItemPropertySource.class);
supportedTypes.add(IEditingDomainItemProvider.class);
supportedTypes.add(IItemLabelProvider.class);
supportedTypes.add(ITableItemLabelProvider.class);
}
/**
* This creates an adapter for a {@link org.eclipse.emf.edit.tree.TreeNode}.
*/
@Override
public Adapter createTreeNodeAdapter()
{
return new TreeNodeItemProvider(this);
}
/**
* 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;
}
/**
* This also check if the type is one of the supported types.
*/
@Override
public boolean isFactoryForType(Object type)
{
return super.isFactoryForType(type) || 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)
{
// This is a kludge to deal with enumerators, which crash the doSwitch.
//
if (object instanceof EObject && ((EObject)object).eClass() == null)
{
return null;
}
if (isFactoryForType(type))
{
Object adapter = super.adapt(object, type);
// TODO
if (!(type instanceof Class<?>) /*|| (((Class<?>)type).isInstance(adapter))*/)
{
return adapter;
}
}
return null;
}
/**
* This records adapters for subsequent disposable.
*/
@Override
public Adapter adaptNew(Notifier object, Object type)
{
Adapter result = super.adaptNew(object, type);
disposable.add(result);
return result;
}
/**
* 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);
}
}
/**
* This disposes all the disposables.
*/
public void dispose()
{
disposable.dispose();
}
}