import { BoardHandler } from '../board/boardhandler' ; import { TreeNavigator } from '../tree/treenavigator' ; export class EvaluateBoardHandler implements BoardHandler { private treeNavigator_ : TreeNavigator ; constructor ( treeNavigator ) { this . treeNavigator_ = treeNavigator ; } onMove ( from , to ) { } onChange ( ) { } onScroll ( e ) { this . treeNavigator_ . selectFromWheelEvent ( e ) ; } }