/// <summary>
/// Initializes a new instance of the <see cref="T:Locator.Portable.ViewModels.MapPageViewModel"/> class.
/// </summary>
/// <param name="navigation">Navigation.</param>
/// <param name="geolocator">Geolocator.</param>
/// <param name="commandFactory">Command factory.</param>
/// <param name="geocodingWebServiceController">Geocoding repository.</param>
public MapPageViewModel(INavigationService navigation, IGeolocator geolocator, Func <Action, ICommand> commandFactory,
IGeocodingWebServiceController geocodingWebServiceController) : base(navigation)
{
_geolocator = geolocator;
_geocodingWebServiceController = geocodingWebServiceController;
_nearestAddressCommand = commandFactory(() => FindNearestSite());
_geolocationCommand = commandFactory(() =>
{
if (_geolocationUpdating)
{
geolocator.Stop();
}
else
{
geolocator.Start();
}
GeolocationButtonTitle = _geolocationUpdating ? "Start" : "Stop";
_geolocationUpdating = !_geolocationUpdating;
});
_positions = new List <IPosition> ();
LocationUpdates = new Subject <IPosition> ();
ClosestUpdates = new Subject <IPosition> ();
}