public void OnNavigationBackRequested(object sender, BackRequestedEventArgs e)
{
CenterOnStartLocation();
ClearNavigation();
ClearPolygon();
IncidentDatailsHandler?.Invoke(this, new IncidentSelectedEventArgs(-1, false));
SystemNavigationManager.GetForCurrentView().AppViewBackButtonVisibility = AppViewBackButtonVisibility.Collapsed;
SystemNavigationManager.GetForCurrentView().BackRequested -= OnNavigationBackRequested;
}
private async void UpdateNavigationPosition()
{
if (_currentRoute != null && !_routeInAction)
{
_routeInAction = true;
_userIcon.IncidentResponsePath = _currentRoute.Route.Path.Positions;
var toastPositionIndex = _userIcon.IncidentResponsePath.Count / 2;
bool complete;
do
{
complete = FollowCustomRoute(_userIcon);
if (toastPositionIndex == _userIcon.RouteIndex && _userIcon.RouteStepIndex == 0 && _currentIncident != null)
{
ToastHelper.PopIncidentUpdatedToast(_currentIncident.Id);
if (_currentIncident.UpdateDescription.IsNotNullOrWhiteSpace())
{
_currentIncident.Description = _currentIncident.UpdateDescription;
}
}
// stop user just before incident
var pathIndex = Math.Max(_userIcon.IncidentResponsePath.Count - 3, 0);
if (_userIcon.RouteIndex >= pathIndex)
{
complete = true;
}
await Task.Delay(Configuration.UpdateInterval);
}while ((_currentRoute != null) && !complete);
if (complete)
{
_routeInAction = false;
_userIcon.UpdateStatus(ResponseStatus.Busy);
// navigate to the attend view
if (_currentIncident != null)
{
_currentIncident.ReadyToIdentify = true;
_mapControl.Center = _currentIncident.GeoLocation;
_mapControl.ZoomLevel = Configuration.IncidentZoomLevel;
await AddTickets();
await ShowPolygonSearch();
IncidentDatailsHandler?.Invoke(this, new IncidentSelectedEventArgs(_currentIncident.Id, true, false));
SystemNavigationManager.GetForCurrentView().AppViewBackButtonVisibility = AppViewBackButtonVisibility.Visible;
SystemNavigationManager.GetForCurrentView().BackRequested += OnNavigationBackRequested;
// adding request for additional responder
if (_currentIncident.IsHighPriority && _currentIncident.Responders.All(x => x.DepartmentType != DepartmentType.Ambulance))
{
var invoke = CreateResponderForPriorityIncidentHandler?.Invoke(this, new IncidentEventArgs(_currentIncident));
if (invoke != null)
{
var responseRequestModel = await invoke;
AddElements(responseRequestModel.ResponseUnit, responseRequestModel.ResponseUnit.Responder.GeoLocation, ResponderModel.AnchorPoint);
_currentIncident.Responders.Add(responseRequestModel);
}
}
}
ClearNavigation();
await UpdateSelectedItem(null);
}
}
}