Eclipse Platform
Release 3.0

org.eclipse.ui.views.navigator
Class NavigatorDropAdapter

java.lang.Object
  extended byorg.eclipse.swt.dnd.DropTargetAdapter
      extended byorg.eclipse.jface.viewers.ViewerDropAdapter
          extended byorg.eclipse.ui.part.PluginDropAdapter
              extended byorg.eclipse.ui.views.navigator.NavigatorDropAdapter
All Implemented Interfaces:
DropTargetListener, EventListener, IOverwriteQuery, org.eclipse.swt.internal.SWTEventListener

public class NavigatorDropAdapter
extends PluginDropAdapter
implements IOverwriteQuery

Implements drop behaviour for drag and drop operations that land on the resource navigator.

Since:
2.0

Field Summary
 
Fields inherited from class org.eclipse.ui.part.PluginDropAdapter
ATT_CLASS
 
Fields inherited from class org.eclipse.jface.viewers.ViewerDropAdapter
LOCATION_AFTER, LOCATION_BEFORE, LOCATION_NONE, LOCATION_ON
 
Fields inherited from interface org.eclipse.ui.dialogs.IOverwriteQuery
ALL, CANCEL, NO, NO_ALL, YES
 
Constructor Summary
NavigatorDropAdapter(StructuredViewer viewer)
          Constructs a new drop adapter.
 
Method Summary
 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.
 boolean performDrop(Object data)
          Perform the drop.
 String queryOverwrite(String pathString)
          Returns one of the return code constants declared on this interface, indicating whether the entity represented by the passed String should be overwritten.
 boolean validateDrop(Object target, int dragOperation, TransferData transferType)
          This method is used to notify the action that some aspect of the drop operation has changed.
 
Methods inherited from class org.eclipse.ui.part.PluginDropAdapter
drop, getCurrentTransfer, getPluginAdapter
 
Methods inherited from class org.eclipse.jface.viewers.ViewerDropAdapter
determineLocation, determineTarget, dragOperationChanged, dragOver, dropAccept, getBounds, getCurrentLocation, getCurrentOperation, getCurrentTarget, getFeedbackEnabled, getSelectedObject, getViewer, handleException, setFeedbackEnabled, setScrollExpandEnabled
 
Methods inherited from class org.eclipse.swt.dnd.DropTargetAdapter
dragLeave
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

NavigatorDropAdapter

public NavigatorDropAdapter(StructuredViewer viewer)
Constructs a new drop adapter.

Method Detail

dragEnter

public void dragEnter(DropTargetEvent event)
Description copied from class: DropTargetAdapter
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
Overrides:
dragEnter in class ViewerDropAdapter

performDrop

public boolean performDrop(Object data)
Perform the drop.

Overrides:
performDrop in class PluginDropAdapter
See Also:
DropTargetListener.drop(org.eclipse.swt.dnd.DropTargetEvent)

queryOverwrite

public String queryOverwrite(String pathString)
Description copied from interface: IOverwriteQuery
Returns one of the return code constants declared on this interface, indicating whether the entity represented by the passed String should be overwritten.

This method may be called from a non-UI thread, in which case this method must run the query in a sync exec in the UI thread, if it needs to query the user.

Specified by:
queryOverwrite in interface IOverwriteQuery
Parameters:
pathString - the path representing the entity to be overwritten
Returns:
one of the return code constants declared on this interface

validateDrop

public boolean validateDrop(Object target,
                            int dragOperation,
                            TransferData transferType)
This method is used to notify the action that some aspect of the drop operation has changed.

Overrides:
validateDrop in class PluginDropAdapter

Eclipse Platform
Release 3.0

Guidelines for using Eclipse APIs.

Copyright (c) IBM Corp. and others 2000, 2004. All rights reserved.