| /****************************************************************************** |
| * 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(); |
| } |
