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/*****************************************************************************
* Copyright (c) 2012 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:
* Patrick Tessier (CEA LIST) Patrick.tessier@cea.fr - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.uml.service.types.helper;
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.common.command.Command;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.edit.command.DeleteCommand;
import org.eclipse.gmf.runtime.common.core.command.CommandResult;
import org.eclipse.gmf.runtime.common.core.command.ICommand;
import org.eclipse.gmf.runtime.emf.type.core.commands.DestroyElementCommand;
import org.eclipse.gmf.runtime.emf.type.core.requests.DestroyElementRequest;
/**
* this is an helper that redirect destroy request to get destroy command from uml plugin
*
*/
public class ObjectNodeHelper extends ElementEditHelper {
@Override
protected ICommand getBasicDestroyElementCommand(DestroyElementRequest req) {
ICommand result = new DestroyActivityNode(req);
return result;
}
/**
* inner class for the destruction of element
*
*/
private class DestroyActivityNode extends DestroyElementCommand{
private Command emfcmd=null;
public DestroyActivityNode(DestroyElementRequest request) {
super(request);
}
protected CommandResult doExecuteWithResult(IProgressMonitor monitor, IAdaptable info)
throws ExecutionException {
//this code comes from super class and we replace explicitly by a call of the command of UML
// for node specific commands have been done
EObject destructee = getElementToDestroy();
// only destroy attached elements
if ((destructee != null) && (destructee.eResource() != null)) {
// here has been commented because uml commands take all in charge
// tear down incoming references
//tearDownIncomingReferences(destructee);
// also tear down outgoing references, because we don't want
// reverse-reference lookups to find destroyed objects
//tearDownOutgoingReferences(destructee);
// remove the object from its container
emfcmd=DeleteCommand.create(getRequest().getEditingDomain(),getElementToDestroy());
if (emfcmd != null && emfcmd.canExecute()) {
emfcmd.execute();
}
// here has been commented because uml commands take all in charge
// in case it was cross-resource-contained
// Resource res = destructee.eResource();
// if (res != null) {
//res.getContents().remove(destructee);
// }
}
return CommandResult.newOKCommandResult();
}
@Override
protected IStatus doUndo(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
// The undo has to be explicitly called
emfcmd.canUndo();
emfcmd.undo();
return Status.OK_STATUS;
}
@Override
protected IStatus doRedo(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
// The redo has to be explicitly called
//IStatus status =super.doRedo(monitor, info);
// IStatus status =super.doRedo(monitor, info);
// emfcmd.canExecute();
emfcmd.redo();
return Status.OK_STATUS;
}
}
}
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