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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:
* Vincent Lorenzo (CEA LIST) vincent.lorenzo@cea.fr - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.modelexplorer.handler;
import java.util.List;
import org.eclipse.emf.common.command.Command;
import org.eclipse.emf.common.command.CompoundCommand;
import org.eclipse.emf.common.command.UnexecutableCommand;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.edit.command.RemoveCommand;
import org.eclipse.emf.transaction.RecordingCommand;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.gmf.runtime.notation.Diagram;
import org.eclipse.papyrus.sasheditor.contentprovider.IPageMngr;
/**
* Handler for the delete Diagram action
*
*
*
*/
public class DeleteDiagramHandler extends AbstractCommandHandler {
/**
*
* @see org.eclipse.papyrus.modelexplorer.handler.AbstractCommandHandler#getCommand()
*
* @return
*/
@Override
protected Command getCommand() {
TransactionalEditingDomain editingDomain = getEditingDomain();
final IPageMngr pageMngr = getPageManager();
List<Diagram> diagrams = getSelectedDiagrams();
if(editingDomain != null && pageMngr != null && !diagrams.isEmpty()) {
CompoundCommand command = new CompoundCommand();
for(final Diagram diagram : diagrams) {
Command sashRemoveComd = new RecordingCommand(editingDomain) {
@Override
protected void doExecute() {
if(pageMngr.isOpen(diagram)) {
pageMngr.closePage(diagram);
}
pageMngr.removePage(diagram);
}
};
EList<EObject> diags = diagram.eResource().getContents();
command.append(sashRemoveComd);
command.append(new RemoveCommand(editingDomain, diags, diagram));
}
return command.isEmpty() ? UnexecutableCommand.INSTANCE : command;
}
return UnexecutableCommand.INSTANCE;
}
}
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