internal void HandleLongPress(TouchEffect sender)
{
if (sender.State == TouchState.Normal)
{
longPressTokenSource?.Cancel();
longPressTokenSource?.Dispose();
longPressTokenSource = null;
return;
}
if (sender.LongPressCommand == null || sender.InteractionStatus == TouchInteractionStatus.Completed)
{
return;
}
longPressTokenSource = new CancellationTokenSource();
Task.Delay(sender.LongPressDuration, longPressTokenSource.Token).ContinueWith(t =>
{
if (t.IsFaulted && t.Exception != null)
{
throw t.Exception;
}
if (t.IsCanceled)
{
return;
}
var longPressAction = new Action(() =>
{
sender.HandleUserInteraction(TouchInteractionStatus.Completed);
sender.RaiseLongPressCompleted();
});
if (Device.IsInvokeRequired)
{
Device.BeginInvokeOnMainThread(longPressAction);
}
else
{
longPressAction.Invoke();
}
});
}
