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/**
* Copyright (c) 2004 - 2011 Eike Stepper (Berlin, Germany) 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:
* Eike Stepper - initial API and implementation
* Simon McDuff - maintenance
*/
package org.eclipse.emf.cdo.internal.ui;
import org.eclipse.emf.cdo.CDOObject;
import org.eclipse.emf.cdo.view.CDOView;
import org.eclipse.emf.spi.cdo.FSMUtil;
import org.eclipse.emf.spi.cdo.InternalCDOObject;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.swt.widgets.TreeItem;
import java.util.Set;
/**
* @author Eike Stepper
*/
public abstract class ItemsProcessor
{
private CDOView view;
public ItemsProcessor(CDOView view)
{
this.view = view;
}
public CDOView getView()
{
return view;
}
public void processCDOObjects(TreeViewer viewer)
{
processCDOObjects(viewer, null);
}
public void processCDOObjects(final TreeViewer viewer, final Set<? extends CDOObject> ids)
{
try
{
viewer.getControl().getDisplay().asyncExec(new Runnable()
{
public void run()
{
try
{
processObject(viewer, ids, viewer.getInput());
processItems(viewer, ids, viewer.getTree().getItems());
}
catch (Exception ignore)
{
}
}
});
}
catch (Exception ignore)
{
}
}
protected InternalCDOObject getCDOObject(Object object)
{
if (object instanceof InternalCDOObject)
{
return (InternalCDOObject)object;
}
if (object != null && view != null)
{
return FSMUtil.adapt(object, view);
}
return null;
}
protected abstract void processCDOObject(TreeViewer viewer, InternalCDOObject cdoObject);
private void processItems(TreeViewer viewer, Set<? extends CDOObject> ids, TreeItem[] items)
{
for (TreeItem item : items)
{
Object object = item.getData();
processObject(viewer, ids, object);
if (item.getItemCount() != 0)
{
processItems(viewer, ids, item.getItems());
}
}
}
private void processObject(TreeViewer viewer, Set<? extends CDOObject> ids, Object object)
{
InternalCDOObject cdoObject = getCDOObject(object);
if (ids.contains(cdoObject))
{
processCDOObject(viewer, cdoObject);
}
}
}
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