/// <summary>
/// Copies data from another map control view model.
/// </summary>
public void CopyFrom(MapControlViewModel other)
{
this.userLocation = other.userLocation;
this.busStops = other.busStops;
this.mapView = other.mapView;
this.shapes = other.shapes;
this.selectedBusStop = other.selectedBusStop;
}
/// <summary>
/// Copies data from another map control view model.
/// </summary>
public void CopyFrom(MapControlViewModel other)
{
this.userLocation = other.userLocation;
this.busStops = other.busStops;
this.mapView = other.mapView;
this.shapes = other.shapes;
this.selectedBusStop = other.selectedBusStop;
}
/// <summary>
/// Returns a list of suggestions for the user the OBA list of routes.
/// </summary>
public async Task <IEnumerable <string> > GetSuggestionsAsync(string query, OneBusAway.Model.Point userLocation)
{
var obaDataAccess = ObaDataAccess.Create();
var listOfAllRoutes = await obaDataAccess.GetAllRoutesForCurrentRegionAsync();
return(from result in listOfAllRoutes
where (result.ShortName != null && result.ShortName.IndexOf(query, StringComparison.OrdinalIgnoreCase) > -1) ||
(result.Description != null && result.Description.IndexOf(query, StringComparison.OrdinalIgnoreCase) > -1)
select string.Format(CultureInfo.CurrentCulture, "BUS {0}", result.ShortName));
}
/// <summary>
/// Called when the user selects a location as the search result. Show all of the routes that are near this stop.
/// </summary>
/// <param name="sender">SearchResultsControlViewModel</param>
/// <param name="e">SearchLocationResultViewModel</param>
private async void OnSearchResultsControlViewModelLocationSelected(object sender, LocationSelectedEventArgs e)
{
this.MapControlViewModel.BusStops = null;
this.MapControlViewModel.Shapes = null;
var point = new OneBusAway.Model.Point(e.Location.Point.Coordinates[0], e.Location.Point.Coordinates[1]);
this.MapControlViewModel.UserLocation = point;
this.MapControlViewModel.MapView = new MapView(point, Constants.ZoomedInMapZoom, true);
// Find all the bus stops at this location and then show the routes for this address:
await this.MapControlViewModel.RefreshStopsForLocationAsync();
// Find all of the unique routes for this location:
await this.SearchResultsControlViewModel.SelectSpecificRoutesAsync((from stop in this.MapControlViewModel.BusStops
from route in stop.Routes
select route.Id).Distinct());
}
/// <summary>
/// Searches all agencies for all bus numbers.
/// </summary>
public async Task SearchAsync(string query, OneBusAway.Model.Point userLocation)
{
this.NoSearchResultsText = string.Format(CultureInfo.CurrentCulture, "SEARCHING FOR '{0}'", query);
try
{
if (string.IsNullOrEmpty(query))
{
this.SearchResults.Clear();
this.BingMapsSearchResults = null;
}
else
{
// If the user selected a suggestion, then that means they want a specific bus:
if (query.StartsWith("BUS", StringComparison.OrdinalIgnoreCase))
{
await DisplayAndSelectSpecificRouteAsync(query.Substring(3).Trim());
}
else
{
var listOfAllRoutes = await this.LoadAllRoutesAsync();
// Let's filter the results!
var newItems = (from result in listOfAllRoutes
where (result.ShortName != null && result.ShortName.IndexOf(query, StringComparison.OrdinalIgnoreCase) > -1) ||
(result.Description != null && result.Description.IndexOf(query, StringComparison.OrdinalIgnoreCase) > -1)
select new SearchRouteResultViewModel(result));
await this.uiHelper.BatchAddItemsAsync(this.searchResults, newItems);
var bingMapResults = await BingMapsServiceHelper.GetLocationByQuery(query, Utilities.Confidence.Medium, userLocation);
this.BingMapsSearchResults = (from result in bingMapResults
select new SearchLocationResultViewModel(result)).ToArray();
}
}
}
catch
{
}
this.NoSearchResultsText = "NO RESULTS";
}
/// <summary>
/// Finds the users location asynchronously using the Geolocator.
/// </summary>
public async Task FindUserLocationAsync()
{
// If we already have a location, don't get it again:
if (this.UserLocation == null)
{
try
{
var position = await ServiceRepository.GeoLocationService.FindUserLocationAsync();
this.UserLocation = new Point(position.Latitude, position.Longitude);
this.MapView = new MapView(this.UserLocation, Constants.ZoomedInMapZoom);
}
catch
{
// geolocator failed for some other reason.
// [Ghulam] Apparently on server 2102 GetGeopositionAsync throws FileNotFoundException.
}
}
}
/// <summary>
/// Finds the users location asynchronously using the Geolocator.
/// </summary>
public async Task <bool> TryFindUserLocationAsync()
{
try
{
var position = await ServiceRepository.GeoLocationService.FindUserLocationAsync();
this.UserLocation = new Point(position.Latitude, position.Longitude);
this.MapView = new MapView(this.UserLocation, Constants.ZoomedInMapZoom, true);
return(true);
}
catch (UnauthorizedAccessException)
{
return(false);
}
catch (Exception)
{
// geolocator failed for some other reason.
// [Ghulam] Apparently on server 2102 GetGeopositionAsync throws FileNotFoundException.
return(false);
}
}
/// <summary>
/// Finds the users location asynchronously using the Geolocator.
/// </summary>
public async Task<bool> TryFindUserLocationAsync()
{
try
{
Geolocator geolocator = new Geolocator();
var position = await geolocator.GetGeopositionAsync();
this.UserLocation = new Point(position.Coordinate.Point.Position.Latitude, position.Coordinate.Point.Position.Longitude); ;
this.MapView = new MapView(this.UserLocation, this.MapView.ZoomLevel, true);
return true;
}
catch (UnauthorizedAccessException)
{
return false;
}
catch (Exception)
{
// geolocator failed for some other reason.
// [Ghulam] Apparently on server 2102 GetGeopositionAsync throws FileNotFoundException.
return false;
}
}
/// <summary>
/// Finds the users location asynchronously using the Geolocator.
/// </summary>
public async Task FindUserLocationAsync()
{
// If we already have a location, don't get it again:
if (this.UserLocation == null)
{
this.UserLocation = MapView.Current.MapCenter;
this.MapView = new MapView(this.UserLocation, ViewModelConstants.DefaultMapZoom);
try
{
Geolocator geolocator = new Geolocator();
var position = await geolocator.GetGeopositionAsync();
this.UserLocation = new Point(position.Coordinate.Point.Position.Latitude, position.Coordinate.Point.Position.Longitude); ;
this.MapView = new MapView(this.UserLocation, ViewModelConstants.ZoomedInMapZoom);
}
catch
{
// geolocator failed for some other reason.
// [Ghulam] Apparently on server 2102 GetGeopositionAsync throws FileNotFoundException.
}
}
}
/// <summary>
/// This method is called when the geo location service has a new lat / lon for us.
/// </summary>
public void OnUserLocationChanged(Point newLocation)
{
this.UserLocation = newLocation;
}
/// <summary>
/// Finds the users location asynchronously using the Geolocator.
/// </summary>
public async Task<bool> TryFindUserLocationAsync()
{
try
{
var position = await ServiceRepository.GeoLocationService.FindUserLocationAsync();
this.UserLocation = new Point(position.Latitude, position.Longitude);
this.MapView = new MapView(this.UserLocation, Constants.ZoomedInMapZoom, true);
return true;
}
catch (UnauthorizedAccessException)
{
return false;
}
catch (Exception)
{
// geolocator failed for some other reason.
// [Ghulam] Apparently on server 2102 GetGeopositionAsync throws FileNotFoundException.
return false;
}
}
/// <summary>
/// Finds the users location asynchronously using the Geolocator.
/// </summary>
public async Task FindUserLocationAsync()
{
// If we already have a location, don't get it again:
if (this.UserLocation == null)
{
try
{
var position = await ServiceRepository.GeoLocationService.FindUserLocationAsync();
this.UserLocation = new Point(position.Latitude, position.Longitude);
this.MapView = new MapView(this.UserLocation, Constants.ZoomedInMapZoom);
}
catch
{
// geolocator failed for some other reason.
// [Ghulam] Apparently on server 2102 GetGeopositionAsync throws FileNotFoundException.
}
}
}
/// <summary>
/// This method is called when the geo location service has a new lat / lon for us.
/// </summary>
public void OnUserLocationChanged(Point newLocation)
{
this.UserLocation = newLocation;
}
/// <summary>
/// Called when the user selects a location as the search result. Show all of the routes that are near this stop.
/// </summary>
/// <param name="sender">SearchResultsControlViewModel</param>
/// <param name="e">SearchLocationResultViewModel</param>
private async void OnSearchResultsControlViewModelLocationSelected(object sender, LocationSelectedEventArgs e)
{
this.MapControlViewModel.BusStops = null;
this.MapControlViewModel.Shapes = null;
var point = new OneBusAway.Model.Point(e.Location.Point.Coordinates[0], e.Location.Point.Coordinates[1]);
this.MapControlViewModel.UserLocation = point;
this.MapControlViewModel.MapView = new MapView(point, ViewModelConstants.ZoomedInMapZoom, true);
// Find all the bus stops at this location and then show the routes for this address:
await this.MapControlViewModel.RefreshStopsForLocationAsync();
// Find all of the unique routes for this location:
await this.SearchResultsControlViewModel.SelectSpecificRoutesAsync((from stop in this.MapControlViewModel.BusStops
from route in stop.Routes
select route.Id).Distinct());
}
