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/*******************************************************************************
* Copyright (c) 2006, 2007 Sybase, Inc. and others.
*
* All rights reserved. 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:
* Sybase, Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.pagedesigner.editpolicies;
import java.util.List;
import org.eclipse.gef.requests.ChangeBoundsRequest;
import org.eclipse.jst.pagedesigner.parts.NodeEditPart;
import org.w3c.dom.Node;
/**
* @author mengbo
* @version 1.5
*/
public class MoveSupport {
/**
* Check whether the move operation only drags a single node.
*
* @param request
* @return true if the request affects a single node
*/
public static boolean isSingleNode(ChangeBoundsRequest request) {
List parts = request.getEditParts();
if (parts == null || parts.size() != 1
|| !(parts.get(0) instanceof NodeEditPart)) {
return false;
}
return true;
}
/**
* this method must be called after isSingleNode
*
* @param request
* @return the dragged part
*/
public static NodeEditPart getDraggedPart(ChangeBoundsRequest request) {
List parts = request.getEditParts();
NodeEditPart part = (NodeEditPart) parts.get(0);
return part;
}
/**
* this method must be called after isSingleNode
*
* @param request
* @return the dragged node
*/
public static Node getDraggedNode(ChangeBoundsRequest request) {
return getDraggedPart(request).getIDOMNode();
}
}
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