DropAssistant.java

/*******************************************************************************
 * Copyright (c) 2012, 2014 Wind River Systems, Inc. and others. 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:
 * Wind River Systems - initial API and implementation
 *******************************************************************************/
package org.eclipse.tcf.te.launch.ui.viewer.dnd;

import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.dnd.DropTargetEvent;
import org.eclipse.swt.dnd.TransferData;
import org.eclipse.ui.navigator.CommonDropAdapter;
import org.eclipse.ui.navigator.CommonDropAdapterAssistant;

/**
 * Drop assistant implementation.
 */
public class DropAssistant extends CommonDropAdapterAssistant {

	private CommonDnD commonDnD = new CommonDnD();

	/* (non-Javadoc)
	 * @see org.eclipse.ui.navigator.CommonDropAdapterAssistant#validateDrop(java.lang.Object, int, org.eclipse.swt.dnd.TransferData)
	 */
	@Override
	public IStatus validateDrop(Object target, int operation, TransferData transferType) {
		boolean valid = commonDnD.isValidDnD(getCommonDropAdapter(), target, operation, transferType);

		return valid ? Status.OK_STATUS : Status.CANCEL_STATUS;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.ui.navigator.CommonDropAdapterAssistant#handleDrop(org.eclipse.ui.navigator.CommonDropAdapter, org.eclipse.swt.dnd.DropTargetEvent, java.lang.Object)
	 */
	@Override
	public IStatus handleDrop(CommonDropAdapter adapter, DropTargetEvent event, Object target) {
		boolean sucess = commonDnD.doDnD(adapter, target, adapter.getCurrentOperation(), (IStructuredSelection) event.data);

		return sucess ? Status.OK_STATUS : Status.CANCEL_STATUS;
	}
}