Package org.eclipse.swt.dnd

Class DropTargetAdapter

java.lang.Object
org.eclipse.swt.dnd.DropTargetAdapter
All Implemented Interfaces:
EventListener, DropTargetListener
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:

  • 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 Details

    • DropTargetAdapter

      public DropTargetAdapter()

  • Method Details

    • 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:

    • 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:

    • 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:

    • 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:

    • 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:

    • 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: