SurveyPresenter constructor

SurveyPresenter({ required TaskNavigator taskNavigator, required dynamic onResult(SurveyResult), })

Implementation

SurveyPresenter({
  required this.taskNavigator,
  required this.onResult,
}) : super(LoadingSurveyState()) {

  on<StartSurvey>((event, emit){
    emit(
      _handleInitialStep()
    );
  });

  on<NextStep>((event, emit){
    if (state is PresentingSurveyState){
      emit(_handleNextStep(event, state as PresentingSurveyState));
    }
  });

  on<StepBack>((event, emit){
    if (state is PresentingSurveyState){
      emit(
        _handleStepBack(event, state as PresentingSurveyState)
      );
    }
  });

  on<CloseSurvey>((event, emit){
    if (state is PresentingSurveyState){
      emit(
        _handleClose(event, state as PresentingSurveyState)
      );
    }
  });

  this.startDate = DateTime.now();
  add(StartSurvey());
}