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/*****************************************************************************
* Copyright (c) 2011 CEA LIST.
*
* 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:
*
* CEA LIST - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.sysml.diagram.blockdefinition.command;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand;
import org.eclipse.gmf.runtime.diagram.core.util.ViewUtil;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.papyrus.sysml.diagram.blockdefinition.provider.ElementTypes;
/**
*
* <UL>The purpose of this command is to delete view by taking following situation:
* <LI> if the view is placed direclty on the diagram, do nothing
* <LI> if the view is placed into another container, the semantic of the container must be the parent of the semantic view
*</UL>
*/
public class CustomDeleteCommand extends DeleteCommand{
public CustomDeleteCommand(TransactionalEditingDomain editingDomain, View view) {
super(editingDomain, view);
}
@Override
protected IStatus doExecute(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
String containerType = ViewUtil.getViewContainer(getView()) != null ? ViewUtil.getViewContainer(getView()).getType() : null;
if((containerType != null) && !ElementTypes.DIAGRAM_ID.equals(containerType)) {
//if the associated element is different of null
if(getView().getElement()!=null){
//if the container is different of null
if( ViewUtil.getContainerView(getView())!=null&& ViewUtil.getContainerView(getView()).getElement()!=null){
//if the parent of the current element is different of the semantic element of the parent view we have to destroy
if(!getView().getElement().eContainer().equals(ViewUtil.getContainerView(getView()).getElement()) ){
return super.doExecute(monitor, info);
}
}
}
}
return Status.OK_STATUS;
}
}
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