public interface HasDragHandlers extends HasHandlers
DragHandler instances.
 
 Experimental API: This API is still under development and is subject to change.
| Modifier and Type | Method and Description | 
|---|---|
| HandlerRegistration | addDragHandler(DragHandler handler)Adds a  DragEventhandler. | 
fireEventHandlerRegistration addDragHandler(DragHandler handler)
DragEvent handler.handler - the drag handlerHandlerRegistration used to remove this handler