// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
 
using System;
using System.Globalization;
using System.Windows;
using System.Windows.Data;
 
namespace Microsoft.VisualStudio.LanguageServices.Implementation.Options.Converters;
 
internal sealed class NullableBoolOptionConverter(Func<bool> onNullValue) : IValueConverter
{
    public object Convert(object? value, Type targetType, object parameter, CultureInfo culture)
        => value switch
        {
            null => onNullValue(),
            bool b => b,
            _ => DependencyProperty.UnsetValue
        };
 
    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        => value;
}