/*
* Copyright (c) 2006, 2008 Borland Software Corp.
*
* 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:
* Alexander Shatalin (Borland) - initial API and implementation
*/
package org.eclipse.gmf.ecore.edit.policies;
import java.util.Iterator;
import org.eclipse.emf.ecore.EAnnotation;
import org.eclipse.gef.commands.Command;
import org.eclipse.gmf.ecore.edit.commands.EAnnotationReferencesCreateCommand;
import org.eclipse.gmf.ecore.edit.commands.EAnnotationReferencesReorientCommand;
import org.eclipse.gmf.ecore.edit.commands.EReference2CreateCommand;
import org.eclipse.gmf.ecore.edit.commands.EReference2ReorientCommand;
import org.eclipse.gmf.ecore.edit.commands.EReferenceCreateCommand;
import org.eclipse.gmf.ecore.edit.commands.EReferenceReorientCommand;
import org.eclipse.gmf.ecore.edit.parts.EAnnotation2EditPart;
import org.eclipse.gmf.ecore.edit.parts.EAnnotationReferencesEditPart;
import org.eclipse.gmf.ecore.edit.parts.EEnumEnumAnnotationsEditPart;
import org.eclipse.gmf.ecore.edit.parts.EEnumLiteralEditPart;
import org.eclipse.gmf.ecore.edit.parts.EEnumLiteralsEditPart;
import org.eclipse.gmf.ecore.edit.parts.EReference2EditPart;
import org.eclipse.gmf.ecore.edit.parts.EReferenceEditPart;
import org.eclipse.gmf.ecore.part.EcoreVisualIDRegistry;
import org.eclipse.gmf.ecore.providers.EcoreElementTypes;
import org.eclipse.gmf.runtime.common.core.command.ICompositeCommand;
import org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand;
import org.eclipse.gmf.runtime.emf.commands.core.command.CompositeTransactionalCommand;
import org.eclipse.gmf.runtime.emf.type.core.commands.DestroyElementCommand;
import org.eclipse.gmf.runtime.emf.type.core.commands.DestroyReferenceCommand;
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.DestroyReferenceRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.ReorientReferenceRelationshipRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.ReorientRelationshipRequest;
import org.eclipse.gmf.runtime.notation.Edge;
import org.eclipse.gmf.runtime.notation.Node;
import org.eclipse.gmf.runtime.notation.View;
/**
* @generated
*/
public class EEnumItemSemanticEditPolicy extends EcoreBaseItemSemanticEditPolicy {
/**
* @generated
*/
public EEnumItemSemanticEditPolicy() {
super(EcoreElementTypes.EEnum_2005);
}
/**
* @generated
*/
protected Command getDestroyElementCommand(DestroyElementRequest req) {
View view = (View) getHost().getModel();
CompositeTransactionalCommand cmd = new CompositeTransactionalCommand(getEditingDomain(), null);
cmd.setTransactionNestingEnabled(false);
for (Iterator<?> it = view.getTargetEdges().iterator(); it.hasNext();) {
Edge incomingLink = (Edge) it.next();
if (EcoreVisualIDRegistry.getVisualID(incomingLink) == EAnnotationReferencesEditPart.VISUAL_ID) {
DestroyReferenceRequest r = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
cmd.add(new DestroyReferenceCommand(r));
cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
continue;
}
if (EcoreVisualIDRegistry.getVisualID(incomingLink) == EReferenceEditPart.VISUAL_ID) {
DestroyElementRequest r = new DestroyElementRequest(incomingLink.getElement(), false);
cmd.add(new DestroyElementCommand(r));
cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
continue;
}
if (EcoreVisualIDRegistry.getVisualID(incomingLink) == EReference2EditPart.VISUAL_ID) {
DestroyElementRequest r = new DestroyElementRequest(incomingLink.getElement(), false);
cmd.add(new DestroyElementCommand(r));
cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
continue;
}
}
EAnnotation annotation = view.getEAnnotation("Shortcut"); //$NON-NLS-1$
if (annotation == null) {
// there are indirectly referenced children, need extra commands: false
addDestroyChildNodesCommand(cmd);
addDestroyShortcutsCommand(cmd, view);
// delete host element
cmd.add(new DestroyElementCommand(req));
} else {
cmd.add(new DeleteCommand(getEditingDomain(), view));
}
return getGEFWrapper(cmd.reduce());
}
/**
* @generated
*/
private void addDestroyChildNodesCommand(ICompositeCommand cmd) {
View view = (View) getHost().getModel();
for (Iterator<?> nit = view.getChildren().iterator(); nit.hasNext();) {
Node node = (Node) nit.next();
switch (EcoreVisualIDRegistry.getVisualID(node)) {
case EEnumLiteralsEditPart.VISUAL_ID:
for (Iterator<?> cit = node.getChildren().iterator(); cit.hasNext();) {
Node cnode = (Node) cit.next();
switch (EcoreVisualIDRegistry.getVisualID(cnode)) {
case EEnumLiteralEditPart.VISUAL_ID:
cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: true
// don't need explicit deletion of cnode as parent's view deletion would clean child views as well
// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
break;
}
}
break;
case EEnumEnumAnnotationsEditPart.VISUAL_ID:
for (Iterator<?> cit = node.getChildren().iterator(); cit.hasNext();) {
Node cnode = (Node) cit.next();
switch (EcoreVisualIDRegistry.getVisualID(cnode)) {
case EAnnotation2EditPart.VISUAL_ID:
cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: true
// don't need explicit deletion of cnode as parent's view deletion would clean child views as well
// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
break;
}
}
break;
}
}
}
/**
* @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) {
if (EcoreElementTypes.EAnnotationReferences_4001 == req.getElementType()) {
return null;
}
if (EcoreElementTypes.EReference_4002 == req.getElementType()) {
return null;
}
if (EcoreElementTypes.EReference_4003 == req.getElementType()) {
return null;
}
return null;
}
/**
* @generated
*/
protected Command getCompleteCreateRelationshipCommand(CreateRelationshipRequest req) {
if (EcoreElementTypes.EAnnotationReferences_4001 == req.getElementType()) {
return getGEFWrapper(new EAnnotationReferencesCreateCommand(req, req.getSource(), req.getTarget()));
}
if (EcoreElementTypes.EReference_4002 == req.getElementType()) {
return getGEFWrapper(new EReferenceCreateCommand(req, req.getSource(), req.getTarget()));
}
if (EcoreElementTypes.EReference_4003 == req.getElementType()) {
return getGEFWrapper(new EReference2CreateCommand(req, req.getSource(), req.getTarget()));
}
return null;
}
/**
* Returns command to reorient EClass based link. New link target or source
* should be the domain model element associated with this node.
*
* @generated
*/
protected Command getReorientRelationshipCommand(ReorientRelationshipRequest req) {
switch (getVisualID(req)) {
case EReferenceEditPart.VISUAL_ID:
return getGEFWrapper(new EReferenceReorientCommand(req));
case EReference2EditPart.VISUAL_ID:
return getGEFWrapper(new EReference2ReorientCommand(req));
}
return super.getReorientRelationshipCommand(req);
}
/**
* 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 EAnnotationReferencesEditPart.VISUAL_ID:
return getGEFWrapper(new EAnnotationReferencesReorientCommand(req));
}
return super.getReorientReferenceRelationshipCommand(req);
}
}
