EventListener
DragSourceAdapter
, DragSourceContext
public interface DragSourceListener extends EventListener
DragSourceListener
defines the event interface for originators of Drag and Drop operations to track the state of the user's gesture, and to provide appropriate "drag over" feedback to the user throughout the Drag and Drop operation. The drop site is associated with the previous dragEnter()
invocation if the latest invocation of dragEnter()
on this listener:
dragExit()
invocation on this listener. Modifier and Type | Method | Description |
---|---|---|
void |
dragDropEnd |
This method is invoked to signify that the Drag and Drop operation is complete. |
void |
dragEnter |
Called as the cursor's hotspot enters a platform-dependent drop site. |
void |
dragExit |
Called as the cursor's hotspot exits a platform-dependent drop site. |
void |
dragOver |
Called as the cursor's hotspot moves over a platform-dependent drop site. |
void |
dropActionChanged |
Called when the user has modified the drop gesture. |
void dragEnter(DragSourceDragEvent dsde)
dsde
- the DragSourceDragEvent
void dragOver(DragSourceDragEvent dsde)
dsde
- the DragSourceDragEvent
void dropActionChanged(DragSourceDragEvent dsde)
dsde
- the DragSourceDragEvent
void dragExit(DragSourceEvent dse)
dse
- the DragSourceEvent
void dragDropEnd(DragSourceDropEvent dsde)
DragSourceDropEvent
can be used to determine the termination state. The getDropAction() method returns the operation that the drop site selected to apply to the Drop operation. Once this method is complete, the current DragSourceContext
and associated resources become invalid.dsde
- the DragSourceDropEvent
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https://docs.oracle.com/en/java/javase/21/docs/api/java.desktop/java/awt/dnd/DragSourceListener.html