/******************************************************************************
* Copyright (c) 2002, 2005 IBM Corporation 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:
* IBM Corporation - initial API and implementation
****************************************************************************/
package org.eclipse.gmf.runtime.common.ui.services.dnd.drag;
import org.eclipse.swt.dnd.DragSourceListener;
/**
* Interface to be implemented by providers to handle drag source events
*
* @author Vishy Ramaswamy
*/
public interface IDragSourceListener
extends DragSourceListener {
/**
* Determines if the selection in the context is draggable. This method is
* invoked when the drag starts
*
* @param context
* The context associated with the drag source
* @return true if the drag allowed and false otherwise.
*/
public boolean isDraggable(IDragSourceContext context);
/**
* Returns the supporting transfer agent ids.
*
* @return return the supporting transfer agent ids
*/
public String[] getSupportingTransferIds();
}