public interface HasDragStartHandlers
extends com.google.gwt.event.shared.HasHandlers
| Modifier and Type | Method and Description | 
|---|---|
| com.google.gwt.event.shared.HandlerRegistration | addDragStartHandler(DragStartHandler handler)Executed when dragging first starts. | 
com.google.gwt.event.shared.HandlerRegistration addDragStartHandler(DragStartHandler handler)
 A drag action is
 considered to be begin when the mouse has moved dragStartDistance with the left mouse down.
handler - the dragStart handlerHandlerRegistration used to remove this handler