private async Task DragRelease(Point dropPoint)
{
this.IsDragging = false;
VisualProvider?.UpdateVisualPosition(dropPoint);
// Fire relevant callback function if dropped in a dropSurface
foreach (var dropSurface in dropSurfaces)
{
if (dropSurface.IsMouseOver)
{
var dpi = VisualTreeHelper.GetDpi(dropSurface);
var scaledPoint = new Point(dropPoint.X / dpi.DpiScaleX, dropPoint.Y / dpi.DpiScaleY);
var dropSurfaceScreenPoint = dropSurface.PointToScreen(new Point(0, 0));
var relativePoint = new Point(scaledPoint.X - dropSurfaceScreenPoint.X,
scaledPoint.Y - dropSurfaceScreenPoint.Y);
var dropArgs = new DropEventArgs
{
Result = DragDropResult.DroppedToExistingWindow,
Data = this.dragObject,
RelativeMousePosition = relativePoint,
DropSurface = dropSurface,
};
dropSurfaceData[dropSurface].DropCallback(dropArgs);
VisualProvider?.CloseVisual(dropArgs);
dragDropTcs.SetResult(dropArgs);
return;
}
}
// Fire event if dropped was not in any dropSurface
var newWindowDropArgs = new DropEventArgs
{
Result = DragDropResult.NewWindowRequested,
Data = this.dragObject,
DropSurface = null,
RelativeMousePosition = dropPoint,
};
if (VisualProvider != null)
{
var newWindowPosition = await VisualProvider.CloseVisual(newWindowDropArgs);
newWindowDropArgs.RelativeMousePosition = newWindowPosition;
}
dragDropTcs.SetResult(newWindowDropArgs);
}
public async Task <Point> CloseVisual(DropEventArgs e)
{
if (e.DropSurface == null)
{
// Dropped outside
tabFloatingDragDropWindow.SetBackgroundColor();
var location = await tabFloatingDragDropWindow.StopMovement();
// Floating tab should stay there a bit more, so the window have time to initialize.
FadeOutAfterDelay();
return(location);
}
else
{
var location = await tabFloatingDragDropWindow.StopMovement();
tabFloatingDragDropWindow.Stop();
return(location);
}
}