/*******************************************************************************
* Copyright (c) 2007 Exadel, Inc. and Red Hat, Inc.
* Distributed under license by Red Hat, Inc. All rights reserved.
* This program is 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:
* Exadel, Inc. and Red Hat, Inc. - initial API and implementation
******************************************************************************/
package org.jboss.tools.jsf.ui.editor.edit;
import org.eclipse.draw2d.Connection;
import org.eclipse.draw2d.ConnectionAnchor;
import org.eclipse.draw2d.PolylineConnection;
import org.eclipse.gef.GraphicalEditPart;
import org.eclipse.gef.Request;
import org.eclipse.gef.commands.Command;
import org.eclipse.gef.editpolicies.GraphicalNodeEditPolicy;
import org.eclipse.gef.requests.CreateConnectionRequest;
import org.eclipse.gef.requests.ReconnectRequest;
import org.jboss.tools.common.model.XModelObject;
import org.jboss.tools.jsf.ui.editor.dnd.DndHelper;
import org.jboss.tools.jsf.ui.editor.figures.FigureFactory;
import org.jboss.tools.jsf.ui.editor.figures.NodeFigure;
import org.jboss.tools.jsf.ui.editor.model.commands.ConnectionCommand;
/**
*
* @author eskimo(dgolovin@exadel.com)
*
*/
public class JSFNodeEditPolicy extends
GraphicalNodeEditPolicy {
/**
*
*/
protected Connection createDummyConnection(Request req) {
PolylineConnection dummyConn = FigureFactory.createNewLink(null);
return dummyConn;
}
/**
*
*/
protected Command getConnectionCompleteCommand(
CreateConnectionRequest request) {
if (getJSFEditPart() instanceof PageEditPart) {
if (!DndHelper
.isDropEnabled((XModelObject) ((PageEditPart) getJSFEditPart())
.getPageModel().getSource()))
return null;
} else if (getJSFEditPart() instanceof GroupEditPart) {
if (!DndHelper
.isDropEnabled((XModelObject) ((GroupEditPart) getJSFEditPart())
.getGroupModel().getSource()))
return null;
}
ConnectionCommand command = (ConnectionCommand) request
.getStartCommand();
command.setTarget((JSFEditPart) getJSFEditPart());
ConnectionAnchor ancor = getJSFEditPart().getTargetConnectionAnchor(
request);
if (ancor == null)
return null;
command.setTargetTerminal(getJSFEditPart()
.mapConnectionAnchorToTerminal(ancor));
return command;
}
/**
*
*/
protected Command getConnectionCreateCommand(CreateConnectionRequest request) {
if (getJSFEditPart() instanceof PageEditPart) {
if (!DndHelper
.drag((XModelObject) ((PageEditPart) getJSFEditPart())
.getPageModel().getSource()))
return null;
} else if (getJSFEditPart() instanceof GroupEditPart) {
if (((GroupEditPart) getJSFEditPart()).getGroupModel()
.getPageList().size() > 1)
return null;
if (!DndHelper
.drag((XModelObject) ((GroupEditPart) getJSFEditPart())
.getGroupModel().getSource()))
return null;
}
ConnectionCommand command = new ConnectionCommand();
command.setLink(null);
command.setSource((JSFEditPart) getJSFEditPart());
ConnectionAnchor ancor = getJSFEditPart().getSourceConnectionAnchor(
request);
command.setSourceTerminal(getJSFEditPart()
.mapConnectionAnchorToTerminal(ancor));
request.setStartCommand(command);
return command;
}
/**
*
* @return
*/
protected JSFEditPart getJSFEditPart() {
return (JSFEditPart) getHost();
}
/**
*
*/
protected Command getReconnectTargetCommand(ReconnectRequest request) {
return null;
}
/**
*
*/
protected Command getReconnectSourceCommand(ReconnectRequest request) {
return null;
}
/**
*
* @return
*/
protected NodeFigure getNodeFigure() {
return (NodeFigure) ((GraphicalEditPart) getHost()).getFigure();
}
}