Ursa.Avalonia/src/Ursa/Controls/Breadcrumb/BreadcrumbItem.cs

using System.Windows.Input;
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Metadata;
using Avalonia.Controls.Templates;
using Avalonia.Input;

namespace Ursa.Controls;

[PseudoClasses(PC_Last)]
public class BreadcrumbItem: ContentControl
{
    public const string PC_Last = ":last";
    public static readonly StyledProperty<object?> SeparatorProperty =
        AvaloniaProperty.Register<BreadcrumbItem, object?>(
            nameof(Separator));

    public object? Separator
    {
        get => GetValue(SeparatorProperty);
        set => SetValue(SeparatorProperty, value);
    }

    public static readonly StyledProperty<object?> IconProperty = AvaloniaProperty.Register<BreadcrumbItem, object?>(
        nameof(Icon));

    public object? Icon
    {
        get => GetValue(IconProperty);
        set => SetValue(IconProperty, value);
    }

    public static readonly StyledProperty<ICommand?> CommandProperty = AvaloniaProperty.Register<BreadcrumbItem, ICommand?>(
        nameof(Command));

    public ICommand? Command
    {
        get => GetValue(CommandProperty);
        set => SetValue(CommandProperty, value);
    }

    public static readonly StyledProperty<object?> CommandParameterProperty = AvaloniaProperty.Register<BreadcrumbItem, object?>(
        nameof(CommandParameter));

    public object? CommandParameter
    {
        get => GetValue(CommandParameterProperty);
        set => SetValue(CommandParameterProperty, value);
    }

    public static readonly StyledProperty<IDataTemplate?> IconTemplateProperty = AvaloniaProperty.Register<BreadcrumbItem, IDataTemplate?>(
        nameof(IconTemplate));

    public IDataTemplate? IconTemplate
    {
        get => GetValue(IconTemplateProperty);
        set => SetValue(IconTemplateProperty, value);
    }

    public static readonly StyledProperty<bool> IsReadOnlyProperty = AvaloniaProperty.Register<BreadcrumbItem, bool>(
        nameof(IsReadOnly));

    public bool IsReadOnly
    {
        get => GetValue(IsReadOnlyProperty);
        set => SetValue(IsReadOnlyProperty, value);
    }

    protected override void OnPointerPressed(PointerPressedEventArgs e)
    {
        base.OnPointerPressed(e);
        if (!IsReadOnly)
        {
            Command?.Execute(CommandParameter);
        }
    }
}