harmonia/Harmonia.WinUI/Converters/BooleanToVisibilityConverter.cs

using Microsoft.UI.Xaml;
using Microsoft.UI.Xaml.Data;
using System;
using System.Collections.Generic;
using System.Text;

namespace Harmonia.WinUI.Converters;

public class BooleanToVisibilityConverter : IValueConverter
{
    public Visibility TrueValue { get; set; }
    public Visibility FalseValue { get; set; }

    public BooleanToVisibilityConverter()
    {
        TrueValue = Visibility.Visible;
        FalseValue = Visibility.Collapsed;
    }

    public object? Convert(object value, Type targetType, object parameter, string language)
    {
        if (!(value is bool))
            return null;

        return (bool)value ? TrueValue : FalseValue;
    }

    public object? ConvertBack(object value, Type targetType, object parameter, string language)
    {
        if (Equals(value, TrueValue))
            return true;

        if (Equals(value, FalseValue))
            return false;

        return null;
    }
}