javax.swing
Class TransferHandler.DropHandler

java.lang.Object
  javax.swing.TransferHandler.DropHandler

All Implemented Interfaces:

DropTargetListener, EventListener, Serializable

Enclosing class:

TransferHandler

private static class TransferHandler.DropHandler

extends Object

implements DropTargetListener, Serializable

Field Summary

private boolean

canImport

Constructor Summary

private

TransferHandler.DropHandler()

Method Summary

private boolean	actionSupported(int action)
void	dragEnter(DropTargetDragEvent e) Called while a drag operation is ongoing, when the mouse pointer enters the operable part of the drop site for the DropTarget registered with this listener.
void	dragExit(DropTargetEvent e) Called while a drag operation is ongoing, when the mouse pointer has exited the operable part of the drop site for the DropTarget registered with this listener.
void	dragOver(DropTargetDragEvent e) Called when a drag operation is ongoing, while the mouse pointer is still over the operable part of the drop site for the DropTarget registered with this listener.
void	drop(DropTargetDropEvent e) Called when the drag operation has terminated with a drop on the operable part of the drop site for the DropTarget registered with this listener.
void	dropActionChanged(DropTargetDragEvent e) Called if the user has modified the current drop gesture.

Methods inherited from class java.lang.Object

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

Field Detail

canImport

private boolean canImport

Constructor Detail

TransferHandler.DropHandler

private TransferHandler.DropHandler()

Method Detail

actionSupported

private boolean actionSupported(int action)

dragEnter

public void dragEnter(DropTargetDragEvent e)

Description copied from interface: DropTargetListener

Called while a drag operation is ongoing, when the mouse pointer enters the operable part of the drop site for the DropTarget registered with this listener.

Specified by:

dragEnter in interface DropTargetListener

Parameters:

e - the DropTargetDragEvent

dragOver

public void dragOver(DropTargetDragEvent e)

Description copied from interface: DropTargetListener

Called when a drag operation is ongoing, while the mouse pointer is still over the operable part of the drop site for the DropTarget registered with this listener.

Specified by:

dragOver in interface DropTargetListener

Parameters:

e - the DropTargetDragEvent

dragExit

public void dragExit(DropTargetEvent e)

Description copied from interface: DropTargetListener

Called while a drag operation is ongoing, when the mouse pointer has exited the operable part of the drop site for the DropTarget registered with this listener.

Specified by:

dragExit in interface DropTargetListener

Parameters:

e - the DropTargetEvent

drop

public void drop(DropTargetDropEvent e)

Description copied from interface: DropTargetListener

Called when the drag operation has terminated with a drop on the operable part of the drop site for the DropTarget registered with this listener.

This method is responsible for undertaking the transfer of the data associated with the gesture. The DropTargetDropEvent provides a means to obtain a Transferable object that represents the data object(s) to be transfered.

From this method, the DropTargetListener shall accept or reject the drop via the acceptDrop(int dropAction) or rejectDrop() methods of the DropTargetDropEvent parameter.

Subsequent to acceptDrop(), but not before, DropTargetDropEvent's getTransferable() method may be invoked, and data transfer may be performed via the returned Transferable's getTransferData() method.

At the completion of a drop, an implementation of this method is required to signal the success/failure of the drop by passing an appropriate boolean to the DropTargetDropEvent's dropComplete(boolean success) method.

Note: The data transfer should be completed before the call to the DropTargetDropEvent's dropComplete(boolean success) method. After that, a call to the getTransferData() method of the Transferable returned by DropTargetDropEvent.getTransferable() is guaranteed to succeed only if the data transfer is local; that is, only if DropTargetDropEvent.isLocalTransfer() returns true. Otherwise, the behavior of the call is implementation-dependent.

Specified by:

drop in interface DropTargetListener

Parameters:

e - the DropTargetDropEvent

dropActionChanged

public void dropActionChanged(DropTargetDragEvent e)

Description copied from interface: DropTargetListener

Called if the user has modified the current drop gesture.

Specified by:

dropActionChanged in interface DropTargetListener

Parameters:

e - the DropTargetDragEvent