private async void SetParkingLotListSelectionVisualState(ParkingLot selectedItem = null)
{
if (selectedItem == null)
{
selectedItem = Vm.SelectedParkingLot;
}
if (selectedItem != null)
{
ListViewItem listViewItem = null;
var count = 0;
while (listViewItem == null && count < 10)
{
var itemContainer = ParkingLotList.ContainerFromItem(selectedItem);
listViewItem = itemContainer as ListViewItem;
await Task.Delay(200);
count++;
}
if (listViewItem != null)
{
Debug.WriteLine("[MainView] parking lot list: set selected visual state for " + selectedItem.Name);
VisualStateManager.GoToState(listViewItem.ContentTemplateRoot as Control, "Selected", false);
}
else
{
Debug.WriteLine("[MainVm] parking lot list: list view item is null :/");
}
ParkingLotList.ScrollIntoView(selectedItem);
}
else
{
Debug.WriteLine("[MainView] parking lot list: set selected index to -1");
ParkingLotList.SelectedIndex = -1;
}
}
public MainPage()
{
InitializeComponent();
if (ResponsiveStateGroup.CurrentState == desktopViewVisualState)
{
//this should use "-1 * CoreApplication.GetCurrentView().TitleBar.Height" but it returns 0 at this point :(
SetMapBottomMargin(-32);
}
NavigationCacheMode = NavigationCacheMode.Required;
CoreApplication.GetCurrentView().TitleBar.ExtendViewIntoTitleBar = true;
Map.Loaded += async(sender, args) =>
{
SetMapBottomMargin(0);
Debug.WriteLine("[MainView] map: map loaded");
if (_initialMapBbox != null)
{
Debug.WriteLine("[MainView] map: map loaded, set initial bounds");
await Map.TrySetViewBoundsAsync(_initialMapBbox, null, MapAnimationKind.None);
_zoomedToInitialView = true;
}
else if (_initialCoordinates != null)
{
Debug.WriteLine("[MainView] map: map loaded, set initial coords");
await Map.TrySetViewAsync(_initialCoordinates, null, null, null, MapAnimationKind.None);
_zoomedToInitialView = true;
}
_mapLoaded = true;
};
Messenger.Default.Register(this, (ZoomMapToBoundsMessage msg) =>
{
if (!_mapLoaded)
{
_initialMapBbox = msg.BoundingBox;
//set initial bbox as the following won't work while splash screen is still visible
}
else
{
DispatcherHelper.CheckBeginInvokeOnUI(async() =>
{
Debug.WriteLine("[MainView] map: zoom map to bounds msg");
await Map.TrySetViewBoundsAsync(msg.BoundingBox, null, MapAnimationKind.Bow);
_zoomedToInitialView = _mapLoaded;
});
}
});
Messenger.Default.Register(this, (ZoomMapToCoordinateMessage msg) =>
{
if (!_mapLoaded)
{
_initialCoordinates = msg.Point;
//set initial coordinates as the following won't work while splash screen is still visible
}
else
{
DispatcherHelper.CheckBeginInvokeOnUI(async() =>
{
Debug.WriteLine("[MainView] map: zoom map to coordinates msg");
await
Map.TrySetViewAsync(msg.Point, null, null, null, MapAnimationKind.Bow);
_zoomedToInitialView = _mapLoaded;
});
}
});
Messenger.Default.Register(this, (ShowSearchResultOnMapMessage msg) =>
{
DispatcherHelper.CheckBeginInvokeOnUI(async() =>
{
DrawingService.DrawSearchResult(Map, msg.Result);
Debug.WriteLine("[MainView] map: show search result - wait until initial view was zoomed to");
await WaitForInitialMapZoom();
Debug.WriteLine("[MainView] map: show search result");
await Map.TrySetViewAsync(msg.Result.Point, null, null, null, MapAnimationKind.Bow);
});
});
Messenger.Default.Register(this, (HideSearchResultOnMapMessage msg) =>
{
DrawingService.RemoveSearchResult(Map);
});
Messenger.Default.Register(this, (InfoDialogToggleVisibilityMessage msg) =>
{
FindName(nameof(InfoDialog));
_infoDialogVisible = msg.IsVisible;
InfoDialog.Visibility = msg.Visibility;
});
Messenger.Default.Register(this, async(UpdateParkingLotListSelectionMessage msg) =>
{
Debug.WriteLine("[MainView] update parking lot list: message received");
SetParkingLotListSelectionVisualState();
});
Vm.PropertyChanged += OnViewModelPropertyChanged;
ParkingLotList.SelectionChanged += (sender, args) =>
{
try
{
ParkingLotList.ScrollIntoView(ParkingLotList.SelectedItem);
}
catch (Exception)
{
Debug.WriteLine("Cannot scroll currenct parking lot list item...");
}
};
Map.MapElementClick += (sender, args) =>
{
Vm.SelectedParkingLot = DrawingService.GetParkingLotOfIcon(args.MapElements.GetTopmostIcon());
};
SystemNavigationManager.GetForCurrentView().BackRequested += (sender, args) =>
{
if (_infoDialogVisible)
{
Messenger.Default.Send(new InfoDialogToggleVisibilityMessage(false));
args.Handled = true;
}
};
UpdateParkingLotFilter();
}