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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
*
*****************************************************************************/
package org.eclipse.papyrus.uml.diagram.timing.custom.edit.policies;
import java.util.List;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.emf.transaction.util.TransactionUtil;
import org.eclipse.gef.commands.Command;
import org.eclipse.gef.commands.CompoundCommand;
import org.eclipse.gmf.runtime.common.core.command.CommandResult;
import org.eclipse.gmf.runtime.diagram.ui.commands.ICommandProxy;
import org.eclipse.gmf.runtime.diagram.ui.editpolicies.CreationEditPolicy;
import org.eclipse.gmf.runtime.diagram.ui.requests.CreateViewRequest;
import org.eclipse.gmf.runtime.diagram.ui.requests.CreateViewRequest.ViewDescriptor;
import org.eclipse.gmf.runtime.emf.commands.core.command.AbstractTransactionalCommand;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.papyrus.uml.diagram.timing.custom.Messages;
import org.eclipse.papyrus.uml.diagram.timing.custom.edit.commands.RefreshCommandForDo;
import org.eclipse.papyrus.uml.diagram.timing.custom.edit.commands.RefreshCommandForUndo;
import org.eclipse.papyrus.uml.diagram.timing.custom.utils.EditPartUtils;
import org.eclipse.papyrus.uml.diagram.timing.custom.utils.LifelineUtils;
import org.eclipse.papyrus.uml.diagram.timing.custom.utils.StateDefinitionUtils;
import org.eclipse.papyrus.uml.diagram.timing.custom.utils.StateInvariantUtils;
import org.eclipse.papyrus.uml.diagram.timing.edit.parts.FullLifelineEditPartCN;
import org.eclipse.papyrus.uml.diagram.timing.edit.parts.StateDefinitionEditPart;
import org.eclipse.uml2.uml.Lifeline;
/**
* This EditPolicy creates a StateInvariant when the first StateDefinition is created, and links the StateInvariant to
* the StateDefinition.
*/
public class CustomFullLifelineStateDefinitionCompartmentCreationEditPolicy extends CreationEditPolicy {
public CustomFullLifelineStateDefinitionCompartmentCreationEditPolicy() {
}
@Override
protected Command getCreateCommand(final CreateViewRequest request) {
final Command superCommand = super.getCreateCommand(request);
final List<? extends ViewDescriptor> viewDescriptors = request.getViewDescriptors();
if(viewDescriptors.size() == 1 && Integer.toString(StateDefinitionEditPart.VISUAL_ID).equals(viewDescriptors.get(0).getSemanticHint())) {
final View lifelineView = (View)getHost().getParent().getModel();
final Lifeline lifeline = (Lifeline)lifelineView.getElement();
final List<?> children = getHost().getChildren();
final boolean firstStateDefinition = children.size() == 0;
return createStateDefinitionCommand(superCommand, lifeline, firstStateDefinition);
}
return super.getCreateCommand(request);
}
private Command createStateDefinitionCommand(final Command superCommand, final Lifeline lifeline, final boolean first) {
final CompoundCommand compoundCommand = new CompoundCommand(Messages.CustomFullLifelineStateDefinitionCompartmentCreationEditPolicy_CreateStateDefinition);
final FullLifelineEditPartCN lifelineEditPart = getLifelineEditPart();
compoundCommand.add(new RefreshCommandForUndo(lifelineEditPart));
// creates the state definition View
compoundCommand.add(superCommand);
final CommandResult superCommandResult = ((ICommandProxy)superCommand).getICommand().getCommandResult();
final TransactionalEditingDomain editingDomain = TransactionUtil.getEditingDomain(lifeline);
if(editingDomain == null) {
throw new IllegalStateException("no editing domain"); //$NON-NLS-1$
}
final AbstractTransactionalCommand initStateDefinitionCommand = new AbstractTransactionalCommand(editingDomain, Messages.CustomFullLifelineStateDefinitionCompartmentCreationEditPolicy_InitializeStateDefinition, null) {
@Override
protected CommandResult doExecuteWithResult(final IProgressMonitor monitor, final IAdaptable info) throws ExecutionException {
// the result from the super command that creates the view
final ViewDescriptor viewDescriptor = (ViewDescriptor)superCommandResult.getReturnValue();
final View stateDefinitionView = (View)viewDescriptor.getAdapter(View.class);
// create the annotation for the StateDefinition
StateDefinitionUtils.initNewStateDefinitionName(stateDefinitionView);
if(first) {
final String id = StateDefinitionUtils.getStateDefinitionViewID(stateDefinitionView);
StateInvariantUtils.createStateInvariant(id, lifelineEditPart, -1, -1, -1);
final View lifelineView = (View)lifelineEditPart.getModel();
final Lifeline lifeline = (Lifeline)lifelineView.getElement();
LifelineUtils.updateFragmentNames(lifeline, lifelineView);
}
return CommandResult.newOKCommandResult();
}
};
compoundCommand.add(new ICommandProxy(initStateDefinitionCommand));
compoundCommand.add(new RefreshCommandForDo(getLifelineEditPart()));
return compoundCommand;
}
protected FullLifelineEditPartCN getLifelineEditPart() {
return (FullLifelineEditPartCN)EditPartUtils.findParentEditPartWithId(getHost(), FullLifelineEditPartCN.VISUAL_ID);
}
}
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