v2rayN/v2rayN/v2rayN.Desktop/Views/CheckUpdateView.axaml.cs

using Avalonia.ReactiveUI;
using Avalonia.Threading;
using ReactiveUI;
using System.Reactive.Disposables;

namespace v2rayN.Desktop.Views
{
    public partial class CheckUpdateView : ReactiveUserControl<CheckUpdateViewModel>
    {
        public CheckUpdateView()
        {
            InitializeComponent();

            ViewModel = new CheckUpdateViewModel(UpdateViewHandler);

            this.WhenActivated(disposables =>
            {
                this.OneWayBind(ViewModel, vm => vm.CheckUpdateItems, v => v.lstCheckUpdates.ItemsSource).DisposeWith(disposables);

                this.Bind(ViewModel, vm => vm.EnableCheckPreReleaseUpdate, v => v.togEnableCheckPreReleaseUpdate.IsChecked).DisposeWith(disposables);
                this.BindCommand(ViewModel, vm => vm.CheckUpdateCmd, v => v.btnCheckUpdate).DisposeWith(disposables);
            });
        }

        private async Task<bool> UpdateViewHandler(EViewAction action, object? obj)
        {
            switch (action)
            {
                case EViewAction.DispatcherCheckUpdate:
                    if (obj is null) return false;
                    Dispatcher.UIThread.Post(() =>
                        ViewModel?.UpdateViewResult((CheckUpdateItem)obj),
                    DispatcherPriority.Default);
                    break;

                case EViewAction.DispatcherCheckUpdateFinished:
                    if (obj is null) return false;
                    Dispatcher.UIThread.Post(() =>
                        ViewModel?.UpdateFinishedResult((bool)obj),
                    DispatcherPriority.Default);
                    break;
            }

            return await Task.FromResult(true);
        }
    }
}