package org.eclipse.gmf.tooling.examples.affixednode.diagram.edit.policies;
import java.util.Iterator;
import org.eclipse.emf.ecore.EAnnotation;
import org.eclipse.gef.commands.Command;
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.requests.CreateRelationshipRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.DestroyElementRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.ReorientRelationshipRequest;
import org.eclipse.gmf.runtime.notation.Edge;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.gmf.tooling.examples.affixednode.diagram.edit.commands.CommunicationCreateCommand;
import org.eclipse.gmf.tooling.examples.affixednode.diagram.edit.commands.CommunicationReorientCommand;
import org.eclipse.gmf.tooling.examples.affixednode.diagram.edit.parts.CommunicationEditPart;
import org.eclipse.gmf.tooling.examples.affixednode.diagram.part.AffixednodeVisualIDRegistry;
import org.eclipse.gmf.tooling.examples.affixednode.diagram.providers.AffixednodeElementTypes;
/**
* @generated
*/
public class IncomingCommunicatorItemSemanticEditPolicy extends AffixednodeBaseItemSemanticEditPolicy {
/**
* @generated
*/
public IncomingCommunicatorItemSemanticEditPolicy() {
super(AffixednodeElementTypes.IncomingCommunicator_3001);
}
/**
* @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 (AffixednodeVisualIDRegistry.getVisualID(incomingLink) == CommunicationEditPart.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
addDestroyShortcutsCommand(cmd, view);
// delete host element
cmd.add(new DestroyElementCommand(req));
} else {
cmd.add(new DeleteCommand(getEditingDomain(), view));
}
return getGEFWrapper(cmd.reduce());
}
/**
* @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 (AffixednodeElementTypes.Communication_4001 == req.getElementType()) {
return null;
}
return null;
}
/**
* @generated
*/
protected Command getCompleteCreateRelationshipCommand(CreateRelationshipRequest req) {
if (AffixednodeElementTypes.Communication_4001 == req.getElementType()) {
return getGEFWrapper(new CommunicationCreateCommand(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 CommunicationEditPart.VISUAL_ID:
return getGEFWrapper(new CommunicationReorientCommand(req));
}
return super.getReorientRelationshipCommand(req);
}
}