/*******************************************************************************
* Copyright (c) 2000, 2016 IBM Corporation and others.
*
* 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.swt.dnd;
/**
* This adapter class provides default implementations for the
* methods described by the DropTargetListener
interface.
*
* Classes that wish to deal with DropTargetEvent
s can
* extend this class and override only the methods which they are
* interested in.
*
* Please note, there are subtle difference in DND behavior on different OS's. * For example during a file transfer, Windows will put out the file path * as soon as the drag begins, where as Linux will make it available only * on a drop operation. For correct crossplatform behavior, it is recommended * to delay OS interaction until drop has occurred or verify the correctness of * the operation across platforms. *
* * * @see DropTargetListener * @see DropTargetEvent * @see Sample code and further information * @see Eclipse corner article on DND */ public class DropTargetAdapter implements DropTargetListener { /** * This implementation ofdragEnter
permits the default
* operation defined in event.detail
to be performed on the current data type
* defined in event.currentDataType
.
* For additional information see DropTargetListener.dragEnter
.
*
* @param event the information associated with the drag enter event
*/
@Override
public void dragEnter(DropTargetEvent event){}
/**
* This implementation of dragLeave
does nothing.
* For additional information see DropTargetListener.dragOperationChanged
.
*
* @param event the information associated with the drag leave event
*/
@Override
public void dragLeave(DropTargetEvent event){}
/**
* This implementation of dragOperationChanged
permits the default
* operation defined in event.detail
to be performed on the current data type
* defined in event.currentDataType
.
* For additional information see DropTargetListener.dragOperationChanged
.
*
* @param event the information associated with the drag operation changed event
*/
@Override
public void dragOperationChanged(DropTargetEvent event){}
/**
* This implementation of dragOver
permits the default
* operation defined in event.detail
to be performed on the current data type
* defined in event.currentDataType
.
* For additional information see DropTargetListener.dragOver
.
*
* @param event the information associated with the drag over event
*/
@Override
public void dragOver(DropTargetEvent event){}
/**
* This implementation of drop
does nothing.
* For additional information see DropTargetListener.drop
.
*
* @param event the information associated with the drop event
*/
@Override
public void drop(DropTargetEvent event){}
/**
* This implementation of dropAccept
permits the default
* operation defined in event.detail
to be performed on the current data type
* defined in event.currentDataType
.
* For additional information see DropTargetListener.dropAccept
.
*
* @param event the information associated with the drop accept event
*/
@Override
public void dropAccept(DropTargetEvent event){}
}