private async void SearchStopsAsync(string searchText)
{
if (String.IsNullOrWhiteSpace(searchText))
{
StopsResultList.Clear();
MapPlaces.Clear();
return;
}
if (_tokenSource != null && !_tokenSource.IsCancellationRequested)
{
_tokenSource.Cancel();
}
_tokenSource = new CancellationTokenSource();
IsOverviewLoading = true;
ApiResult <IEnumerable <TransitStop> > response = await _networkService.GetStopsAsync(searchText, _tokenSource.Token);
IsOverviewLoading = false;
if (response.IsFailure)
{
// TODO: Show error in list
StopsResultList.Clear();
MapPlaces.Clear();
return;
}
if (_tokenSource.Token.IsCancellationRequested)
{
// TODO: Show error in list
StopsResultList.Clear();
MapPlaces.Clear();
return;
}
// We explicitly enumerate the list into memory here, otherwise Guid.NewGuid() gets called every time we enumerate the list,
// making it impossible to link a Map POI to a list element.
List <TransitStop> stops = response.Result.ToList();
StopsResultList = new ObservableCollection <StopSearchElementViewModel>(
stops.Select(x => new StopSearchElementViewModel(x, _messenger)));
MapPlaces.Clear();
MapPlaces.AddRange(stops.Select(x => new BasicMapPoi
{
Coords = x.Coords,
Name = x.NameAndCode,
Id = x.Id
}));
}
public void SetMapSelectedPlace(IEnumerable <Guid> obj)
{
Guid?nullableId = obj?.FirstOrDefault();
if (nullableId != null)
{
Guid clickedId = nullableId.Value;
StopSearchElementViewModel matchingStop = StopsResultList.FirstOrDefault(x => x.BackingStop.Id == clickedId);
if (matchingStop != null)
{
if (_currentState == StopSearchState.Details)
{
SwitchToDetailedView(new MessageTypes.ViewStopDetails(matchingStop));
}
else
{
SelectedStop = matchingStop;
}
}
}
}
private async Task UpdateNearbyPlaces(Geocircle circle, CancellationToken token)
{
ApiResult <IEnumerable <TransitStop> > response = await _networkService.GetStopsByBoundingRadius(
(float)circle.Center.Latitude,
(float)circle.Center.Longitude,
(int)circle.Radius,
token
);
if (response.IsFailure)
{
// TODO: Show error in list
StopsResultList.Clear();
MapPlaces.Clear();
return;
}
if (token.IsCancellationRequested)
{
// TODO: show error in list
StopsResultList.Clear();
MapPlaces.Clear();
return;
}
// We explicitly enumerate the list into memory here, otherwise Guid.NewGuid() gets called every time we enumerate the list,
// making it impossible to link a Map POI to a list element.
List <TransitStop> stops = response.Result.ToList();
StopsResultList = new ObservableCollection <StopSearchElementViewModel>(
stops.Select(x => new StopSearchElementViewModel(x, _messenger)));
MapPlaces.Clear();
MapPlaces.AddRange(stops.Select(x => new BasicMapPoi
{
Coords = x.Coords,
Name = x.NameAndCode,
Id = x.Id
}));
}
