ryujinx/src/Ryujinx/Systems/SetupWizard/SetupWizardPage.cs

using Avalonia.Controls.Presenters;
using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;
using Ryujinx.Ava.Common.Locale;
using Ryujinx.Ava.UI.ViewModels;
using Ryujinx.Ava.Systems.SetupWizard;
using System.Threading;
using System.Threading.Tasks;

namespace Ryujinx.Ava.Systems.SetupWizard
{
    public partial class SetupWizardPage(bool isFirstPage = false) : BaseModel
    {
        protected bool? _result;
        protected readonly CancellationTokenSource _cancellationTokenSource = new();
    
        public bool IsFirstPage { get; } = isFirstPage;

        [ObservableProperty]
        private string? _title;

        [ObservableProperty]
        private object? _content;

        [ObservableProperty]
        private object? _helpContent;

        [ObservableProperty] 
        private object? _actionContent = LocaleManager.Instance[LocaleKeys.SetupWizardActionNext];

        [RelayCommand]
        private void MoveBack()
        {
            _result = false;
            _cancellationTokenSource.Cancel();
        }

        [RelayCommand]
        private void MoveNext()
        {
            _result = true;
            _cancellationTokenSource.Cancel();
        }

        public async ValueTask<bool> Show(ContentPresenter presenter)
        {
            presenter.Content = new SetupWizardPageView 
            {
                DataContext = this,
            };

            try {
                await Task.Delay(-1, _cancellationTokenSource.Token);
            }
            catch (TaskCanceledException) {
                return _result ?? false;
            }

            return false;
        }
    }
}