/*******************************************************************************
* Copyright (c) 2007 Spring IDE Developers
* 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:
* Spring IDE Developers - initial API and implementation
*******************************************************************************/
package org.springframework.ide.eclipse.webflow.ui.graph.policies;
import org.eclipse.gef.EditPart;
import org.eclipse.gef.Request;
import org.eclipse.gef.commands.Command;
import org.eclipse.gef.commands.CompoundCommand;
import org.eclipse.gef.editpolicies.ContainerEditPolicy;
import org.eclipse.gef.requests.CreateRequest;
import org.eclipse.gef.requests.GroupRequest;
import org.springframework.ide.eclipse.webflow.core.model.ITransitionableFrom;
import org.springframework.ide.eclipse.webflow.core.model.ITransitionableTo;
import org.springframework.ide.eclipse.webflow.core.model.IWebflowState;
import org.springframework.ide.eclipse.webflow.ui.graph.commands.AddAndAssignSourceCommand;
import org.springframework.ide.eclipse.webflow.ui.graph.commands.CreateAndAssignSourceCommand;
/**
* @author Christian Dupuis
*/
public class StateSourceEditPolicy extends ContainerEditPolicy {
/* (non-Javadoc)
* @see org.eclipse.gef.editpolicies.ContainerEditPolicy#getAddCommand(org.eclipse.gef.requests.GroupRequest)
*/
protected Command getAddCommand(GroupRequest request) {
CompoundCommand cmd = new CompoundCommand();
for (int i = 0; i < request.getEditParts().size(); i++) {
if (getHost().getModel() instanceof ITransitionableFrom) {
AddAndAssignSourceCommand add = new AddAndAssignSourceCommand();
add.setParent((IWebflowState) getHost().getParent().getModel());
add.setSource((ITransitionableFrom) getHost().getModel());
add.setChild(((ITransitionableTo) ((EditPart) request
.getEditParts().get(i)).getModel()));
cmd.add(add);
}
}
return cmd;
}
/* (non-Javadoc)
* @see org.eclipse.gef.editpolicies.ContainerEditPolicy#getCreateCommand(org.eclipse.gef.requests.CreateRequest)
*/
protected Command getCreateCommand(CreateRequest request) {
CreateAndAssignSourceCommand cmd = new CreateAndAssignSourceCommand();
cmd.setParent((IWebflowState) getHost().getParent().getModel());
cmd.setChild((ITransitionableTo) request.getNewObject());
cmd.setSource((ITransitionableFrom) getHost().getModel());
return cmd;
}
/* (non-Javadoc)
* @see org.eclipse.gef.editpolicies.AbstractEditPolicy#getTargetEditPart(org.eclipse.gef.Request)
*/
public EditPart getTargetEditPart(Request request) {
if (REQ_CREATE.equals(request.getType()))
return getHost();
if (REQ_ADD.equals(request.getType()))
return getHost();
if (REQ_MOVE.equals(request.getType()))
return getHost();
return super.getTargetEditPart(request);
}
}