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/*******************************************************************************
* Copyright (c) 2007, 2015 THALES GLOBAL SERVICES and others.
* 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:
* Obeo - initial API and implementation
*******************************************************************************/
package org.eclipse.sirius.diagram.ui.internal.edit.policies;
import org.eclipse.gef.Request;
import org.eclipse.gef.commands.Command;
import org.eclipse.gef.commands.CompoundCommand;
import org.eclipse.gmf.runtime.emf.type.core.commands.DestroyElementCommand;
import org.eclipse.gmf.runtime.emf.type.core.requests.CreateElementRequest;
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.notation.View;
import org.eclipse.sirius.diagram.DiagramPackage;
import org.eclipse.sirius.diagram.ui.edit.api.part.AbstractDiagramElementContainerEditPart;
import org.eclipse.sirius.diagram.ui.internal.edit.commands.DEdgeCreateCommand;
import org.eclipse.sirius.diagram.ui.internal.edit.commands.DNode4CreateCommand;
import org.eclipse.sirius.diagram.ui.internal.providers.SiriusElementTypes;
/**
* Abstract policy to put common ex generated code for
* DNodeContainerItemSemanticEditPolicy and DNodeListItemSemanticEditPolicy.
*
* @was-generated
*/
public abstract class AbstractDDiagramElementContainerItemSemanticEditPolicy extends SiriusBaseItemSemanticEditPolicy {
/**
* @was-generated
*/
@Override
protected Command getCreateCommand(CreateElementRequest req) {
if (SiriusElementTypes.DNode_3012 == req.getElementType()) {
if (req.getContainmentFeature() == null) {
req.setContainmentFeature(DiagramPackage.eINSTANCE.getAbstractDNode_OwnedBorderedNodes());
}
return getGEFWrapper(new DNode4CreateCommand(req));
}
return super.getCreateCommand(req);
}
/**
* @was-generated
*/
@Override
protected Command getDestroyElementCommand(DestroyElementRequest req) {
CompoundCommand cc = getDestroyEdgesCommand();
addDestroyChildNodesCommand(cc);
addDestroyShortcutsCommand(cc);
View view = (View) getHost().getModel();
if (view.getEAnnotation("Shortcut") != null) { //$NON-NLS-1$
req.setElementToDestroy(view);
}
cc.add(getGEFWrapper(new DestroyElementCommand(req)));
return cc.unwrap();
}
/**
* @was-generated
*/
protected abstract void addDestroyChildNodesCommand(CompoundCommand cmd);
/**
* @was-generated
*/
@Override
protected Command getCreateRelationshipCommand(CreateRelationshipRequest req) {
Command command = req.getTarget() == null ? getStartCreateRelationshipCommand(req) : getCompleteCreateRelationshipCommand(req);
return command != null ? command : super.getCreateRelationshipCommand(req);
}
/**
* @was-generated
*/
protected Command getStartCreateRelationshipCommand(CreateRelationshipRequest req) {
if (SiriusElementTypes.DEdge_4001 == req.getElementType()) {
return getGEFWrapper(new DEdgeCreateCommand(req, req.getSource(), req.getTarget()));
}
return null;
}
/**
* @was-generated
*/
protected Command getCompleteCreateRelationshipCommand(CreateRelationshipRequest req) {
if (SiriusElementTypes.DEdge_4001 == req.getElementType()) {
return getGEFWrapper(new DEdgeCreateCommand(req, req.getSource(), req.getTarget()));
}
return null;
}
@Override
public boolean understandsRequest(Request request) {
boolean understandsRequest = super.understandsRequest(request);
if (understandsRequest) {
// Reconnect is disabled on Regions: the reconnect tool does not
// handle extra source/target mapping and there is currently no
// other means to allow reconnect tools on the RegionContainer.
if (REQ_RECONNECT_SOURCE.equals(request.getType()) || REQ_RECONNECT_TARGET.equals(request.getType())) {
if (getHost() instanceof AbstractDiagramElementContainerEditPart) {
return !((AbstractDiagramElementContainerEditPart) getHost()).isRegion();
}
}
}
return understandsRequest;
}
}
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