using Autodesk.Revit.DB;
using Autodesk.Revit.UI;

namespace Szmedi.Toolkit.RvAssists
{
    public class OnActiveProjectDocument : IExternalCommandAvailability
    {
        public bool IsCommandAvailable(UIApplication applicationData, CategorySet selectedCategories)
        {
            var doc = applicationData?.ActiveUIDocument?.Document;
            return doc != null && !doc.IsFamilyDocument;
        }
    }
}