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/*****************************************************************************
* Copyright (c) 2014, 2016 CEA LIST, Christian W. Damus, and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Benoit Maggi (CEA LIST) benoit.maggi@cea.fr - Initial API and implementation
* Christian W. Damus - bugs 502461, 508404
*****************************************************************************/
package org.eclipse.papyrus.infra.gmfdiag.common.commands;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.emf.common.command.AbstractCommand;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.emf.edit.domain.EditingDomain;
import org.eclipse.gmf.runtime.common.core.command.CompositeCommand;
import org.eclipse.gmf.runtime.common.core.command.ICommand;
import org.eclipse.gmf.runtime.emf.type.core.requests.MoveRequest;
import org.eclipse.papyrus.infra.core.clipboard.ICopierFactory;
import org.eclipse.papyrus.infra.core.clipboard.PapyrusClipboard;
import org.eclipse.papyrus.infra.gmfdiag.common.Activator;
import org.eclipse.papyrus.infra.services.edit.service.ElementEditServiceUtils;
import org.eclipse.papyrus.infra.services.edit.service.IElementEditService;
/**
* this handler has in charge to execute the paste of UML element with their applied stereotypes
*
*/
public class DefaultPasteCommand extends AbstractCommand {
protected EObject targetOwner;
protected CompositeCommand command;
/**
* get the command do the paste on the target owner
*
* @param domain
* the editing owner
* @param targetOwner
* the element where the paste will be done
*/
public DefaultPasteCommand(EditingDomain domain, EObject targetOwner, PapyrusClipboard papyrusClipboard) {
super();
this.targetOwner = targetOwner;
if (papyrusClipboard.size() > 0) {
// Filter only EObject
List<EObject> eobjectsTopaste = new ArrayList<EObject>();
Iterator<Object> iterData = papyrusClipboard.iterator();
while (iterData.hasNext()) {
Object object = iterData.next();
if (object instanceof EObject) {
eobjectsTopaste.add((EObject) object);
}
}
List<EObject> rootElementToPaste = EcoreUtil.filterDescendants(eobjectsTopaste);
// Copy all eObjects (inspired from PasteFromClipboardCommand)
EcoreUtil.Copier copier = ICopierFactory.getInstance(domain.getResourceSet()).get();
copier.copyAll(rootElementToPaste);
copier.copyReferences();
Map<EObject, EObject> duplicatedObjects = new HashMap<EObject, EObject>();
duplicatedObjects.putAll(copier);
// Inform the clipboard of the element created (used by strategies)
papyrusClipboard.addAllInternalToTargetCopy(duplicatedObjects);
// Prepare the move command to move UML element to their new owner
// Nota: move only the "root" semantic elements to be paste
List<EObject> objectsToMove = new ArrayList<EObject>();
Iterator<EObject> it = rootElementToPaste.iterator();
while (it.hasNext()) {
EObject eObject = it.next();
EObject copyObject = duplicatedObjects.get(eObject);
if (copyObject != null) {
objectsToMove.add(copyObject);
}
}
List<EObject> rootObjectsToMove = EcoreUtil.filterDescendants(objectsToMove);
for (EObject eObject : rootObjectsToMove) {
MoveRequest moveRequest = new MoveRequest(targetOwner, eObject);
IElementEditService provider = ElementEditServiceUtils.getCommandProvider(targetOwner);
if (provider != null) {
ICommand editCommand = provider.getEditCommand(moveRequest);
if (editCommand != null && editCommand.canExecute()) {
getCommand().compose(editCommand);
}
}
}
}
}
public CompositeCommand getCommand() {
if (command == null) {
command = new CompositeCommand("Paste All Object"); //$NON-NLS-1$
}
return command;
}
/**
* {@inheritDoc}
*/
@Override
public void execute() {
if (command != null) {
try {
command.execute(new NullProgressMonitor(), null);
} catch (ExecutionException e) {
Activator.log.error(e);
}
}
}
/**
* {@inheritDoc}
*/
@Override
public boolean canExecute() {
if (command == null) { // allow an empty copy for paste with only additional data (Diagram)
return true;
}
return command.canExecute();
}
/**
* {@inheritDoc}
*/
@Override
public void redo() {
if (command != null) {
try {
command.redo(new NullProgressMonitor(), null);
} catch (ExecutionException e) {
Activator.log.error(e);
}
}
}
/**
* {@inheritDoc}
*/
@Override
public void undo() {
if (command != null) {
try {
IProgressMonitor monitor = new NullProgressMonitor();
command.undo(monitor, null);
} catch (ExecutionException e) {
Activator.log.error(e);
}
}
}
}
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