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/*
* Copyright (c) 2004 - 2012 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:
* Martin Fluegge - initial API and implementation
*/
package org.eclipse.emf.cdo.dawn.graphiti.notifications;
import org.eclipse.emf.cdo.CDOObject;
import org.eclipse.emf.cdo.common.revision.delta.CDOFeatureDelta;
import org.eclipse.emf.cdo.dawn.editors.IDawnEditor;
import org.eclipse.emf.cdo.dawn.gmf.appearance.DawnAppearancer;
import org.eclipse.emf.cdo.dawn.gmf.synchronize.DawnConflictHelper;
import org.eclipse.emf.cdo.dawn.gmf.util.DawnDiagramUpdater;
import org.eclipse.emf.cdo.dawn.graphiti.util.DawnGraphitiUtil;
import org.eclipse.emf.cdo.dawn.helper.DawnEditorHelper;
import org.eclipse.emf.cdo.dawn.notifications.BasicDawnTransactionHandler;
import org.eclipse.emf.cdo.transaction.CDOTransaction;
import org.eclipse.emf.cdo.transaction.CDOTransactionConflictEvent;
import org.eclipse.emf.cdo.util.CDOUtil;
import org.eclipse.emf.cdo.util.InvalidObjectException;
import org.eclipse.emf.cdo.view.CDOViewInvalidationEvent;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.edit.domain.EditingDomain;
import org.eclipse.emf.edit.domain.IEditingDomainProvider;
import org.eclipse.emf.transaction.RecordingCommand;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.draw2d.graph.Edge;
import org.eclipse.gef.EditPart;
import org.eclipse.gef.GraphicalViewer;
import org.eclipse.gef.RootEditPart;
import org.eclipse.graphiti.mm.pictograms.PictogramElement;
import org.eclipse.graphiti.ui.editor.DiagramEditor;
import org.eclipse.swt.widgets.Display;
import java.util.List;
/**
* @author Martin Fluegge
*/
public class DawnGraphitiHandler extends BasicDawnTransactionHandler
{
public DawnGraphitiHandler(IDawnEditor editor)
{
super(editor);
}
/**
* @since 2.0
*/
@Override
public void handleViewInvalidationEvent(CDOViewInvalidationEvent event)
{
editor.getDawnEditorSupport().refresh();
}
/**
* @since 2.0
*/
@Override
public void handleTransactionConflictEvent(CDOTransactionConflictEvent event)
{
CDOTransactionConflictEvent cdoTransactionConflictEvent = event;
CDOObject cdoObject = cdoTransactionConflictEvent.getConflictingObject();
EObject element = CDOUtil.getEObject(cdoObject); // either semantic object or notational
List<PictogramElement> pictgramElements = DawnGraphitiUtil.getPictgramElements(((DiagramEditor)editor)
.getDiagramTypeProvider().getDiagram(), element);
GraphicalViewer graphicalViewer = ((DiagramEditor)editor).getGraphicalViewer();
for (PictogramElement pictgramElement : pictgramElements)
{
final EditPart editpart = DawnGraphitiUtil.getEditpart(pictgramElement, graphicalViewer.getRootEditPart());
if (DawnConflictHelper.isConflicted(cdoObject))
{
DawnEditorHelper.getDisplay().syncExec(new Runnable()
{
public void run()
{
int typeConflictLocallyDeleted = DawnAppearancer.TYPE_CONFLICT_REMOTELY_DELETED;
DawnAppearancer.setEditPartConflicted(editpart, typeConflictLocallyDeleted);
}
});
}
}
}
@Override
public void modifyingObject(CDOTransaction transaction, final CDOObject object, CDOFeatureDelta featureDelta)
{
super.modifyingObject(transaction, object, featureDelta);
editor.getDawnEditorSupport().refresh();
}
/**
* @since 2.0
*/
@Override
public void attachingObject(CDOTransaction transaction, CDOObject object)
{
super.attachingObject(transaction, object);
editor.getDawnEditorSupport().refresh();
}
/**
* Edges must be adjusted because of the transience of the Node source/targetEdges CDO cannot see this because
* removing an edges just removes the edge from the diagram. CDO just notices the change in the diagram but not in the
* (detached) edge. The other site (node) is transient and will not be part of the notification. So I must adjust this
* later. CDOLEgacy Wrapper breakes because it only adjusts the changes in the diagram and not the removed edge. So I
* cannot adjust this in the Wrapper. Maybe there is another more generic way.
*/
public void adjustDeletedEdges(final CDOViewInvalidationEvent e)
{
Display.getDefault().asyncExec(new Runnable()
{
public void run()
{
for (CDOObject obj : e.getDetachedObjects())
{
final EObject view = CDOUtil.getEObject(obj);
if (view instanceof Edge)
{
EditingDomain editingDomain = ((IEditingDomainProvider)view.eResource().getResourceSet())
.getEditingDomain();
editingDomain.getCommandStack().execute(new RecordingCommand((TransactionalEditingDomain)editingDomain)
{
@Override
protected void doExecute()
{
try
{
((Edge)view).setTarget(null);
}
catch (InvalidObjectException ignore)
{
}
try
{
((Edge)view).setSource(null);
}
catch (InvalidObjectException ignore)
{
}
}
});
}
}
}
});
}
@SuppressWarnings("unused")
private void handleObject(CDOObject dirtyObject)
{
if (dirtyObject.cdoInvalid())
{
return;
}
EObject element = CDOUtil.getEObject(dirtyObject); // either sementic object or notational
// EditingDomain editingDomain = ((DiagramEditor)editor).getEditingDomain();
// editingDomain.getCommandStack().execute(new RecordingCommand((TransactionalEditingDomain)editingDomain)
// {
// @Override
// protected void doExecute()
// {
// RootEditPart rootEditPart = ((DiagramEditor)editor).getGraphicalViewer().getRootEditPart();
// DawnDiagramUpdater.refreshEditPart(rootEditPart);
// }
// });
Display.getDefault().asyncExec(new Runnable()
{
public void run()
{
RootEditPart rootEditPart = ((DiagramEditor)editor).getGraphicalViewer().getRootEditPart();
DawnDiagramUpdater.refreshEditPart(rootEditPart);
}
});
// View view = DawnDiagramUpdater.findView(element);
if (DawnConflictHelper.isConflicted(dirtyObject))
{
// DawnConflictHelper.handleConflictedView(dirtyObject, view, editor);
return;
}
// EditPart relatedEditPart = DawnDiagramUpdater.findEditPart(view, ((DiagramEditor)editor).getGraphicalViewer()
// .getRootEditPart().getViewer());
// if (relatedEditPart != null)
// {
// DawnDiagramUpdater.refreshEditPart(relatedEditPart.getParent());
// }
// else
// {
// if (TRACER.isEnabled())
// {
// TRACER.format("Updating DiagramEditPart {0} ", ((DiagramEditor)editor).getDiagramEditPart()); //$NON-NLS-1$
// }
// DawnDiagramUpdater.refreshEditPart(((DiagramEditor)editor).getDiagramEditPart(), (DiagramDocumentEditor)editor);
// }
}
protected void refresh(CDOObject object)
{
DawnDiagramUpdater.refreshEditPart(((DiagramEditor)editor).getGraphicalViewer().getRootEditPart());
}
}
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