/// <summary>
/// Call the OBA webservice to load stops and routes for the current location.
/// </summary>
/// <param name="radiusInMeters"></param>
/// <param name="invalidateCache">If true, will discard any cached result and requery the server</param>
public void LoadInfoForLocation(bool invalidateCache)
{
StopsForLocation.Clear();
DisplayRouteForLocation.Working.Clear();
operationTracker.WaitForOperation("CombinedInfoForLocation", "Searching for buses...");
locationTracker.RunWhenLocationKnown(delegate(GeoCoordinate location)
{
busServiceModel.CombinedInfoForLocation(location, defaultSearchRadius, -1, invalidateCache);
});
}
void busServiceModel_CombinedInfoForLocation_Completed(object sender, EventArgs.CombinedInfoForLocationEventArgs e)
{
Debug.Assert(e.error == null);
if (e.error == null)
{
e.stops.Sort(new StopDistanceComparer(e.location));
e.routes.Sort(new RouteDistanceComparer(e.location));
int stopCount = 0;
foreach (Stop stop in e.stops)
{
if (stopCount > maxStops)
{
break;
}
Stop currentStop = stop;
UIAction(() => StopsForLocation.Add(currentStop));
stopCount++;
}
int routeCount = 0;
foreach (Route route in e.routes)
{
if (routeCount > maxRoutes)
{
break;
}
DisplayRoute currentDisplayRoute = new DisplayRoute()
{
Route = route
};
DisplayRouteForLocation.Working.Add(currentDisplayRoute);
routeCount++;
}
// Done with work in the background. Flush the results out to the UI. This is quick.
object testref = null;
UIAction(() =>
{
DisplayRouteForLocation.Toggle();
testref = new object();
}
);
// hack to wait for the UI action to complete
// note this executes in the background, so it's fine to be slow.
int execcount = 0;
while (testref == null)
{
execcount++;
Thread.Sleep(100);
}
// finally, queue up more work
lock (DisplayRouteForLocation.CurrentSyncRoot)
{
foreach (DisplayRoute r in DisplayRouteForLocation.Current)
{
directionHelper[r.Route.id] = r.RouteStops;
operationTracker.WaitForOperation(string.Format("StopsForRoute_{0}", r.Route.id), "Loading route details...");
busServiceModel.StopsForRoute(LocationTracker.CurrentLocation, r.Route);
}
}
}
else
{
ErrorOccured(this, e.error);
}
operationTracker.DoneWithOperation("CombinedInfoForLocation");
}
