/*****************************************************************************
* Copyright (c) 2010 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.diagram.clazz.edit.policies;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.gef.commands.Command;
import org.eclipse.gef.commands.UnexecutableCommand;
import org.eclipse.gmf.runtime.common.core.command.ICommand;
import org.eclipse.gmf.runtime.diagram.ui.commands.ICommandProxy;
import org.eclipse.gmf.runtime.emf.type.core.IElementType;
import org.eclipse.gmf.runtime.emf.type.core.requests.CreateRelationshipRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.DestroyElementRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.ReorientReferenceRelationshipRequest;
import org.eclipse.papyrus.infra.extendedtypes.types.IExtendedHintedElementType;
import org.eclipse.papyrus.infra.extendedtypes.util.ElementTypeUtils;
import org.eclipse.papyrus.infra.services.edit.service.ElementEditServiceUtils;
import org.eclipse.papyrus.infra.services.edit.service.IElementEditService;
import org.eclipse.papyrus.uml.diagram.clazz.edit.commands.CommentAnnotatedElementCreateCommand;
import org.eclipse.papyrus.uml.diagram.clazz.edit.commands.CommentAnnotatedElementReorientCommand;
import org.eclipse.papyrus.uml.diagram.clazz.edit.commands.ConstraintConstrainedElementCreateCommand;
import org.eclipse.papyrus.uml.diagram.clazz.edit.commands.ConstraintConstrainedElementReorientCommand;
import org.eclipse.papyrus.uml.diagram.clazz.edit.parts.CommentAnnotatedElementEditPart;
import org.eclipse.papyrus.uml.diagram.clazz.edit.parts.ConstraintConstrainedElementEditPart;
import org.eclipse.papyrus.uml.diagram.clazz.providers.UMLElementTypes;
/**
* @generated
*/
public class TemplateSignatureItemSemanticEditPolicy extends UMLBaseItemSemanticEditPolicy {
/**
* @generated
*/
public TemplateSignatureItemSemanticEditPolicy() {
super(UMLElementTypes.TemplateSignature_3033);
}
/**
* @generated
*/
protected Command getDestroyElementCommand(DestroyElementRequest req) {
EObject selectedEObject = req.getElementToDestroy();
IElementEditService provider = ElementEditServiceUtils.getCommandProvider(selectedEObject);
if(provider != null) {
// Retrieve delete command from the Element Edit service
ICommand deleteCommand = provider.getEditCommand(req);
if(deleteCommand != null) {
return new ICommandProxy(deleteCommand);
}
}
return UnexecutableCommand.INSTANCE;
}
/**
* @generated
*/
protected Command getCreateRelationshipCommand(CreateRelationshipRequest req) {
Command command = req.getTarget() == null ? getStartCreateRelationshipCommand(req) : getCompleteCreateRelationshipCommand(req);
return command != null ? command : super.getCreateRelationshipCommand(req);
}
/**
* @generated
*/
protected Command getStartCreateRelationshipCommand(CreateRelationshipRequest req) {
IElementType requestElementType = req.getElementType();
if(requestElementType == null) {
return null;
}
IElementType baseElementType = requestElementType;
boolean isExtendedType = false;
if(requestElementType instanceof IExtendedHintedElementType) {
baseElementType = ElementTypeUtils.getClosestDiagramType(requestElementType);
if(baseElementType != null) {
isExtendedType = true;
} else {
// no reference element type ID. using the closest super element type to give more opportunities, but can lead to bugs.
baseElementType = ElementTypeUtils.findClosestNonExtendedElementType((IExtendedHintedElementType)requestElementType);
isExtendedType = true;
}
}
if(UMLElementTypes.CommentAnnotatedElement_4013 == baseElementType) {
return null;
}
if(UMLElementTypes.ConstraintConstrainedElement_4014 == baseElementType) {
return null;
}
return null;
}
/**
* @generated
*/
protected Command getCompleteCreateRelationshipCommand(CreateRelationshipRequest req) {
IElementType requestElementType = req.getElementType();
if(requestElementType == null) {
return null;
}
IElementType baseElementType = requestElementType;
boolean isExtendedType = false;
if(requestElementType instanceof IExtendedHintedElementType) {
baseElementType = ElementTypeUtils.getClosestDiagramType(requestElementType);
if(baseElementType != null) {
isExtendedType = true;
} else {
// no reference element type ID. using the closest super element type to give more opportunities, but can lead to bugs.
baseElementType = ElementTypeUtils.findClosestNonExtendedElementType((IExtendedHintedElementType)requestElementType);
isExtendedType = true;
}
}
if(UMLElementTypes.CommentAnnotatedElement_4013 == baseElementType) {
if(isExtendedType) {
return getExtendedCompleteCreateRelationshipCommand(req, (IExtendedHintedElementType)requestElementType);
}
return getGEFWrapper(new CommentAnnotatedElementCreateCommand(req, req.getSource(), req.getTarget()));
}
if(UMLElementTypes.ConstraintConstrainedElement_4014 == baseElementType) {
if(isExtendedType) {
return getExtendedCompleteCreateRelationshipCommand(req, (IExtendedHintedElementType)requestElementType);
}
return getGEFWrapper(new ConstraintConstrainedElementCreateCommand(req, req.getSource(), req.getTarget()));
}
return null;
}
/**
* Returns command to reorient EReference based link. New link target or source
* should be the domain model element associated with this node.
*
* @generated
*/
protected Command getReorientReferenceRelationshipCommand(ReorientReferenceRelationshipRequest req) {
switch(getVisualID(req)) {
case CommentAnnotatedElementEditPart.VISUAL_ID:
return getGEFWrapper(new CommentAnnotatedElementReorientCommand(req));
case ConstraintConstrainedElementEditPart.VISUAL_ID:
return getGEFWrapper(new ConstraintConstrainedElementReorientCommand(req));
}
return super.getReorientReferenceRelationshipCommand(req);
}
}