private void longPressBegan(CGPoint point)
{
if (dataSource.IsEditing || isActive)
{
return;
}
var itemAtPoint = dataSource.CalendarItemAtPoint(point);
if (!itemAtPoint.HasValue)
{
return;
}
calendarItem = itemAtPoint.Value;
if (!calendarItem.IsEditable())
{
return;
}
itemIndexPath = CollectionView.IndexPathForItemAtPoint(point);
dataSource.StartEditing(itemIndexPath);
becomeActive();
var startPoint = Layout.PointAtDate(calendarItem.StartTime.ToLocalTime());
firstPoint = point;
LastPoint = point;
previousPoint = point;
verticalOffset = firstPoint.Y - startPoint.Y;
impactFeedback.ImpactOccurred();
selectionFeedback.Prepare();
}