public interface HasGestureChangeHandlers extends HasHandlers
GestureChangeHandler instances.| Modifier and Type | Method and Description | 
|---|---|
| HandlerRegistration | addGestureChangeHandler(GestureChangeHandler handler)Adds a  GestureChangeEventhandler. | 
fireEventHandlerRegistration addGestureChangeHandler(GestureChangeHandler handler)
GestureChangeEvent handler.handler - the gesture change handlerHandlerRegistration used to remove this handler