| /****************************************************************************** |
| * 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.drop; |
| |
| import org.eclipse.swt.dnd.DropTargetEvent; |
| import org.eclipse.swt.dnd.DropTargetListener; |
| |
| import org.eclipse.gmf.runtime.common.ui.services.dnd.core.ITransferAgent; |
| |
| /** |
| * Interface to be implemented by providers of transfer agents that are used by |
| * the drop target within drag/drop operations. |
| * |
| * @author Vishy Ramaswamy |
| */ |
| public interface ITransferDropTargetListener |
| extends DropTargetListener { |
| |
| /** |
| * Returns the transfer agent associated with this transfer listener. |
| * |
| * @return ITransferAgent associated with this transfer listener |
| */ |
| public ITransferAgent getTransferAgent(); |
| |
| /** |
| * Initializes this transfer drop target listener with the drop target |
| * context that provides the target and location information during the |
| * drag/drop operation. |
| * |
| * @param context |
| * the drop target context |
| */ |
| public void init(IDropTargetContext context); |
| |
| /** |
| * Returns whether the drop operation for the current drop event is |
| * supported by this listener. This listener will have access to the |
| * <code>IDropActionContext</code> and the current drop target listener |
| * when this method is invoked. |
| * |
| * @param event |
| * The drop target event |
| * @return true if can support, false otherwise |
| */ |
| public boolean canSupport(DropTargetEvent event); |
| } |