/// <summary>
/// Invoked when an unhandled MouseUp routed event reaches an element in its route that is derived from this class. Implement this method to add class handling for this event.
/// </summary>
/// <param name="e">The <see cref="T:System.Windows.Input.MouseButtonEventArgs" /> that contains the event data. The event data reports that the mouse button was released.</param>
protected override void OnMouseUp(MouseButtonEventArgs e)
{
base.OnMouseUp(e);
if (e.Handled)
{
return;
}
this.ReleaseMouseCapture();
e.Handled = this.ActualController.HandleMouseUp(this, e.ToMouseReleasedEventArgs(this));
// Open the context menu
var p = e.GetPosition(this).ToScreenPoint();
double d = p.DistanceTo(this.mouseDownPoint);
if (this.ContextMenu != null)
{
if (Math.Abs(d) < 1e-8 && e.ChangedButton == MouseButton.Right)
{
// TODO: why is the data context not passed to the context menu??
this.ContextMenu.DataContext = this.DataContext;
this.ContextMenu.Visibility = Visibility.Visible;
this.ContextMenu.IsOpen = true;
}
else
{
this.ContextMenu.Visibility = Visibility.Collapsed;
this.ContextMenu.IsOpen = false;
}
}
}
