Package org.eclipse.ui.navigator

Class CommonDragAdapter

java.lang.Object

org.eclipse.swt.dnd.DragSourceAdapter

org.eclipse.ui.navigator.CommonDragAdapter

All Implemented Interfaces:

EventListener, DragSourceListener, SWTEventListener

public final class CommonDragAdapter
extends DragSourceAdapter

Provides an implementation of DragSourceAdapter which uses the extensions provided by the associated INavigatorContentService.

Clients should not need to create an instance of this class unless they are creating their own custom viewer. Otherwise, CommonViewer configures its drag adapter automatically.

Since:

3.2

See Also:

• INavigatorDnDService
• CommonDragAdapterAssistant
• CommonDropAdapter
• CommonDropAdapterAssistant
• CommonViewer

Constructor Summary

Constructors

Constructor	Description
CommonDragAdapter(INavigatorContentService aContentService, ISelectionProvider aProvider)	Create a DragAdapter that drives the configuration of the drag data.

Method Summary

Modifier and Type	Method	Description
void	dragFinished(DragSourceEvent event)	This implementation of dragFinished does nothing.
void	dragSetData(DragSourceEvent event)	This implementation of dragSetData does nothing.
void	dragStart(DragSourceEvent event)	This implementation of dragStart permits the drag operation to start.
Transfer[]	getSupportedDragTransfers()

Methods inherited from class java.lang.Object

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

Constructor Details

CommonDragAdapter

public CommonDragAdapter(INavigatorContentService aContentService,
 ISelectionProvider aProvider)

Create a DragAdapter that drives the configuration of the drag data.

Parameters:

aContentService - The content service this Drag Adapter is associated with

aProvider - The provider that can give the current selection from the appropriate viewer.

Method Details

getSupportedDragTransfers

public Transfer[] getSupportedDragTransfers()

Returns:

An array of supported Drag Transfer types. The list contains [ LocalSelectionTransfer.getTransfer(), PluginTransfer.getInstance()] in addition to any supported types contributed by the assistants.

See Also:

• CommonDragAdapterAssistant
• LocalSelectionTransfer
• PluginTransfer

dragStart

public void dragStart(DragSourceEvent event)

Description copied from class: DragSourceAdapter

This implementation of dragStart permits the drag operation to start. For additional information see DragSourceListener.dragStart.

Specified by:

dragStart in interface DragSourceListener

Overrides:

dragStart in class DragSourceAdapter

Parameters:

event - the information associated with the drag start event

See Also:

• DragSourceEvent

dragSetData

public void dragSetData(DragSourceEvent event)

Description copied from class: DragSourceAdapter

This implementation of dragSetData does nothing. For additional information see DragSourceListener.dragSetData.

Specified by:

dragSetData in interface DragSourceListener

Overrides:

dragSetData in class DragSourceAdapter

Parameters:

event - the information associated with the drag set data event

See Also:

• DragSourceEvent

dragFinished

public void dragFinished(DragSourceEvent event)

Description copied from class: DragSourceAdapter

This implementation of dragFinished does nothing. For additional information see DragSourceListener.dragFinished.

Specified by:

dragFinished in interface DragSourceListener

Overrides:

dragFinished in class DragSourceAdapter

Parameters:

event - the information associated with the drag finished event

See Also:

• DragSourceEvent