Package org.eclipse.swt.dnd

Class DropTargetAdapter

java.lang.Object

org.eclipse.swt.dnd.DropTargetAdapter

All Implemented Interfaces:

EventListener, DropTargetListener, SWTEventListener

Direct Known Subclasses:

DropTargetEffect, ViewerDropAdapter

public class DropTargetAdapter
extends Object
implements DropTargetListener

This adapter class provides default implementations for the methods described by the DropTargetListener interface.

Classes that wish to deal with DropTargetEvents 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 Also:

DropTargetListener, DropTargetEvent, Sample code and further information, Eclipse corner article on DND

Constructor Summary

Constructors

Constructor	Description
DropTargetAdapter()

Method Summary

Modifier and Type	Method	Description
void	dragEnter(DropTargetEvent event)	This implementation of dragEnter permits the default operation defined in event.detailto be performed on the current data type defined in event.currentDataType.
void	dragLeave(DropTargetEvent event)	This implementation of dragLeave does nothing.
void	dragOperationChanged(DropTargetEvent event)	This implementation of dragOperationChanged permits the default operation defined in event.detailto be performed on the current data type defined in event.currentDataType.
void	dragOver(DropTargetEvent event)	This implementation of dragOver permits the default operation defined in event.detailto be performed on the current data type defined in event.currentDataType.
void	drop(DropTargetEvent event)	This implementation of drop does nothing.
void	dropAccept(DropTargetEvent event)	This implementation of dropAccept permits the default operation defined in event.detailto be performed on the current data type defined in event.currentDataType.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DropTargetAdapter

public DropTargetAdapter()

Method Detail

dragEnter

public void dragEnter(DropTargetEvent event)

This implementation of dragEnter permits the default operation defined in event.detailto be performed on the current data type defined in event.currentDataType. For additional information see DropTargetListener.dragEnter.

Specified by:

dragEnter in interface DropTargetListener

Parameters:

event - the information associated with the drag enter event

See Also:

DropTargetEvent

dragLeave

public void dragLeave(DropTargetEvent event)

This implementation of dragLeave does nothing. For additional information see DropTargetListener.dragOperationChanged.

Specified by:

dragLeave in interface DropTargetListener

Parameters:

event - the information associated with the drag leave event

See Also:

DropTargetEvent

dragOperationChanged

public void dragOperationChanged(DropTargetEvent event)

This implementation of dragOperationChanged permits the default operation defined in event.detailto be performed on the current data type defined in event.currentDataType. For additional information see DropTargetListener.dragOperationChanged.

Specified by:

dragOperationChanged in interface DropTargetListener

Parameters:

event - the information associated with the drag operation changed event

See Also:

DropTargetEvent

dragOver

public void dragOver(DropTargetEvent event)

This implementation of dragOver permits the default operation defined in event.detailto be performed on the current data type defined in event.currentDataType. For additional information see DropTargetListener.dragOver.

Specified by:

dragOver in interface DropTargetListener

Parameters:

event - the information associated with the drag over event

See Also:

DropTargetEvent

drop

public void drop(DropTargetEvent event)

This implementation of drop does nothing. For additional information see DropTargetListener.drop.

Specified by:

drop in interface DropTargetListener

Parameters:

event - the information associated with the drop event

See Also:

DropTargetEvent

dropAccept

public void dropAccept(DropTargetEvent event)

This implementation of dropAccept permits the default operation defined in event.detailto be performed on the current data type defined in event.currentDataType. For additional information see DropTargetListener.dropAccept.

Specified by:

dropAccept in interface DropTargetListener

Parameters:

event - the information associated with the drop accept event

See Also:

DropTargetEvent