WIP

src/AppCommon/FileTime.App.Core.Abstraction/Services/IModalService.cs

@@ -5,8 +5,8 @@ namespace FileTime.App.Core.Services;
 
 public interface IModalService
 {
-    IObservable<IChangeSet<IModalViewModelBase>> OpenModals { get; }
+    IObservable<IChangeSet<IModalViewModel>> OpenModals { get; }
 
-    void OpenModal(IModalViewModelBase modalToOpen);
+    void OpenModal(IModalViewModel modalToOpen);
-    void CloseModal(IModalViewModelBase modalToClose);
+    void CloseModal(IModalViewModel modalToClose);
 }

src/AppCommon/FileTime.App.Core.Abstraction/UserCommand/DeleteCommand.cs

@@ -0,0 +1,19 @@
+namespace FileTime.App.Core.UserCommand;
+
+public class DeleteCommand : IIdentifiableUserCommand
+{
+    public const string SoftDeleteCommandName = "soft_delete";
+    public const string HardDeleteCommandName = "hard_delete";
+
+    public static DeleteCommand SoftDelete { get; } = new DeleteCommand(SoftDeleteCommandName, false);
+    public static DeleteCommand HardDelete { get; } = new DeleteCommand(HardDeleteCommandName, true);
+
+    private DeleteCommand(string commandName, bool hardDelete)
+    {
+        UserCommandID = commandName;
+        IsHardDelete = hardDelete;
+    }
+
+    public string UserCommandID { get; }
+    public bool IsHardDelete { get; }
+}

src/AppCommon/FileTime.App.Core.Abstraction/ViewModels/IModalViewModel.cs

@@ -1,6 +1,6 @@
 namespace FileTime.App.Core.ViewModels;
 
-public interface IModalViewModelBase
+public interface IModalViewModel
 {
     string Name { get; }
 }

src/AppCommon/FileTime.App.Core/Services/UserCommandHandler/ItemManipulationUserCommandHandlerService.cs

@@ -6,6 +6,7 @@ using FileTime.App.Core.ViewModels;
 using FileTime.Core.Command;
 using FileTime.Core.Command.CreateContainer;
 using FileTime.Core.Command.CreateElement;
+using FileTime.Core.Extensions;
 using FileTime.Core.Interactions;
 using FileTime.Core.Models;
 using FileTime.Core.Timeline;
@@ -23,6 +24,7 @@ public class ItemManipulationUserCommandHandlerService : UserCommandHandlerServi
     private readonly IClipboardService _clipboardService;
     private readonly IUserCommunicationService _userCommunicationService;
     private readonly ILogger<ItemManipulationUserCommandHandlerService> _logger;
+    private readonly ITimelessContentProvider _timelessContentProvider;
     private readonly ICommandScheduler _commandScheduler;
     private readonly IServiceProvider _serviceProvider;
     private readonly BindedCollection<FullName>? _markedItems;
@@ -42,6 +44,7 @@ public class ItemManipulationUserCommandHandlerService : UserCommandHandlerServi
         _clipboardService = clipboardService;
         _userCommunicationService = userCommunicationService;
         _logger = logger;
+        _timelessContentProvider = timelessContentProvider;
         _commandScheduler = commandScheduler;
         _serviceProvider = serviceProvider;
 
@@ -54,6 +57,7 @@ public class ItemManipulationUserCommandHandlerService : UserCommandHandlerServi
         AddCommandHandlers(new IUserCommandHandler[]
         {
             new TypeUserCommandHandler<CopyCommand>(Copy),
+            new TypeUserCommandHandler<DeleteCommand>(Delete),
             new TypeUserCommandHandler<MarkCommand>(MarkItem),
             new TypeUserCommandHandler<PasteCommand>(Paste),
             new TypeUserCommandHandler<CreateContainer>(CreateContainer),
@@ -143,7 +147,7 @@ public class ItemManipulationUserCommandHandlerService : UserCommandHandlerServi
         _clipboardService.Clear();
 
         if (command is IRequireInputCommand requireInput) await requireInput.ReadInputs();
-        
+
         await AddCommand(command);
     }
 
@@ -181,6 +185,65 @@ public class ItemManipulationUserCommandHandlerService : UserCommandHandlerServi
         await AddCommand(command);
     }
 
+    private async Task Delete(DeleteCommand command)
+    {
+        IList<FullName>? itemsToDelete = null;
+        var shouldDelete = false;
+        string? questionText = null;
+        if ((_markedItems?.Collection?.Count ?? 0) > 0)
+        {
+            itemsToDelete = new List<FullName>(_markedItems!.Collection!);
+        }
+        else if (_currentSelectedItem?.BaseItem?.FullName is not null)
+        {
+            itemsToDelete = new List<FullName>()
+            {
+                _currentSelectedItem.BaseItem.FullName
+            };
+        }
+
+        if ((itemsToDelete?.Count ?? 0) == 0) return;
+
+        if (itemsToDelete!.Count == 1)
+        {
+            var resolvedOnlyItem = await _timelessContentProvider.GetItemByFullNameAsync(itemsToDelete[0], PointInTime.Present);
+
+            if (resolvedOnlyItem is IContainer {AllowRecursiveDeletion: true} onlyContainer
+                && await onlyContainer.Items.GetItemsAsync() is { } children
+                && children.Any())
+            {
+                questionText = $"The container '{onlyContainer.DisplayName}' is not empty. Proceed with delete?";
+            }
+            else
+            {
+                shouldDelete = true;
+            }
+        }
+
+        if (itemsToDelete?.Count == 0) return;
+
+        if (questionText is { })
+        {
+            var proceedDelete = await _userCommunicationService.ShowMessageBox(questionText!);
+
+            if (proceedDelete == MessageBoxResult.Cancel) return;
+        }
+        else if (!shouldDelete)
+        {
+            return;
+        }
+
+        var deleteCommand = new FileTime.Core.Command.Delete.DeleteCommand()
+        {
+            HardDelete = command.IsHardDelete
+        };
+
+        deleteCommand.ItemsToDelete.AddRange(itemsToDelete!);
+        await AddCommand(deleteCommand);
+        
+        _selectedTab?.ClearMarkedItems();
+    }
+
     private async Task AddCommand(ICommand command)
     {
         await _commandScheduler.AddCommand(command);

src/AppCommon/FileTime.App.Core/StartupServices/DefaultIdentifiableCommandHandlerRegister.cs

@@ -16,6 +16,8 @@ public class DefaultIdentifiableCommandHandlerRegister : IStartupHandler
         AddUserCommand(CopyNativePathCommand.Instance);
         AddUserCommand(CreateContainer.Instance);
         AddUserCommand(CreateElement.Instance);
+        AddUserCommand(DeleteCommand.HardDelete);
+        AddUserCommand(DeleteCommand.SoftDelete);
         AddUserCommand(EnterRapidTravelCommand.Instance);
         AddUserCommand(ExitRapidTravelCommand.Instance);
         AddUserCommand(GoToHomeCommand.Instance);

src/Core/FileTime.Core.Abstraction/Interactions/IUserCommunicationService.cs

@@ -4,4 +4,5 @@ public interface IUserCommunicationService
 {
     Task<bool> ReadInputs(params IInputElement[] fields);
     void ShowToastMessage(string text);
+    Task<MessageBoxResult> ShowMessageBox(string text);
 }

src/Core/FileTime.Core.Abstraction/Interactions/MessageBoxResult.cs

@@ -0,0 +1,7 @@
+namespace FileTime.Core.Interactions;
+
+public enum MessageBoxResult
+{
+    Ok,
+    Cancel
+}

src/Core/FileTime.Core.Abstraction/Models/IContainer.cs

@@ -6,4 +6,5 @@ public interface IContainer : IItem
 {
     IObservable<IObservable<IChangeSet<AbsolutePath, string>>?> Items { get; }
     IObservable<bool> IsLoading { get; }
+    bool AllowRecursiveDeletion { get; }
 }

src/Core/FileTime.Core.Command/Delete/DeleteCommand.cs

@@ -0,0 +1,25 @@
+using FileTime.Core.Models;
+using FileTime.Core.Timeline;
+
+namespace FileTime.Core.Command.Delete;
+
+public class DeleteCommand : IExecutableCommand
+{
+    public bool HardDelete { get; init; }
+    public List<FullName> ItemsToDelete { get; } = new List<FullName>();
+
+    public Task<CanCommandRun> CanRun(PointInTime currentTime)
+    {
+        throw new NotImplementedException();
+    }
+
+    public Task<PointInTime> SimulateCommand(PointInTime currentTime)
+    {
+        throw new NotImplementedException();
+    }
+
+    public Task Execute()
+    {
+        throw new NotImplementedException();
+    }
+}

src/Core/FileTime.Core.ContentAccess/ContentProviderBase.cs

@@ -41,6 +41,7 @@ public abstract class ContentProviderBase : IContentProvider
     public string? Attributes => null;
 
     protected BehaviorSubject<bool> IsLoading { get; } = new(false);
+    public bool AllowRecursiveDeletion => false;
 
     IObservable<bool> IContainer.IsLoading => IsLoading.AsObservable();
 

src/Core/FileTime.Core.Models/Container.cs

@@ -22,6 +22,7 @@ public record Container(
     bool CanRename,
     string? Attributes,
     IContentProvider Provider,
+    bool AllowRecursiveDeletion,
     PointInTime PointInTime,
     IObservable<IEnumerable<Exception>> Exceptions,
     ReadOnlyExtensionCollection Extensions,

src/GuiApp/Avalonia/FileTime.GuiApp.Abstractions/Configuration/MainConfiguration.cs

@@ -63,7 +63,7 @@ public static class MainConfiguration
             new CommandBindingConfiguration(GoToPathCommand.CommandName, new[] { Key.G, Key.P }),
             new CommandBindingConfiguration(GoToProviderCommand.CommandName, new[] { Key.G, Key.T }),
             new CommandBindingConfiguration(GoToRootCommand.CommandName, new[] { Key.G, Key.R }),
-            //new CommandBindingConfiguration(ConfigCommand.HardDelete, new[] { new KeyConfig(Key.D,shift: true), new KeyConfig(Key.D, shift: true) }),
+            new CommandBindingConfiguration(DeleteCommand.HardDeleteCommandName, new[] { new KeyConfig(Key.D,shift: true), new KeyConfig(Key.D, shift: true) }),
             new CommandBindingConfiguration(MarkCommand.CommandName, Key.Space),
             new CommandBindingConfiguration(MoveCursorToLastCommand.CommandName, new KeyConfig(Key.G, shift: true)),
             new CommandBindingConfiguration(MoveCursorToFirstCommand.CommandName, new[] { Key.G, Key.G }),
@@ -82,7 +82,7 @@ public static class MainConfiguration
             //new CommandBindingConfiguration(ConfigCommand.RunCommand, new KeyConfig(Key.D4, shift: true)),
             //new CommandBindingConfiguration(ConfigCommand.ScanContainerSize, new[] { Key.C, Key.S }),
             //new CommandBindingConfiguration(ConfigCommand.ShowAllShortcut, Key.F1),
-            //new CommandBindingConfiguration(ConfigCommand.SoftDelete, new[] { new KeyConfig(Key.D), new KeyConfig(Key.D, shift: true) }),
+            new CommandBindingConfiguration(DeleteCommand.SoftDeleteCommandName, new[] { new KeyConfig(Key.D), new KeyConfig(Key.D, shift: true) }),
             new CommandBindingConfiguration(SwitchToTabCommand.SwitchToLastTabCommandName, Key.D9),
             new CommandBindingConfiguration(SwitchToTabCommand.SwitchToTab1CommandName, Key.D1),
             new CommandBindingConfiguration(SwitchToTabCommand.SwitchToTab2CommandName, Key.D2),

src/GuiApp/Avalonia/FileTime.GuiApp.Abstractions/Services/IDialogService.cs

@@ -1,3 +1,4 @@
+using FileTime.App.Core.Models;
 using FileTime.Core.Interactions;
 using FileTime.GuiApp.ViewModels;
 
@@ -6,5 +7,6 @@ namespace FileTime.GuiApp.Services;
 public interface IDialogService : IUserCommunicationService
 {
     IObservable<ReadInputsViewModel?> ReadInput { get; }
+    IObservable<MessageBoxViewModel?> LastMessageBox { get; }
     void ReadInputs(IEnumerable<IInputElement> inputs, Action inputHandler, Action? cancelHandler = null);
 }

src/GuiApp/Avalonia/FileTime.GuiApp.Abstractions/ViewModels/IGuiAppState.cs

@@ -10,7 +10,6 @@ public interface IGuiAppState : IAppState
     List<KeyConfig> PreviousKeys { get; }
     bool IsAllShortcutVisible { get; set; }
     bool NoCommandFound { get; set; }
-    string? MessageBoxText { get; set; }
     List<CommandBindingConfiguration> PossibleCommands { get; set; }
     BindedCollection<RootDriveInfo, string> RootDriveInfos { get; set; }
     IReadOnlyList<PlaceInfo> Places { get; set; }

src/GuiApp/Avalonia/FileTime.GuiApp.Abstractions/ViewModels/MessageBoxViewModel.cs

@@ -0,0 +1,31 @@
+using FileTime.App.Core.ViewModels;
+using FileTime.Core.Interactions;
+using MvvmGen;
+
+namespace FileTime.GuiApp.ViewModels;
+
+[ViewModel]
+public partial class MessageBoxViewModel : IModalViewModel
+{
+    private readonly Action<MessageBoxViewModel, MessageBoxResult> _handler;
+    public string Text { get; }
+    public string Name => "MessageBoxViewModel";
+
+    public MessageBoxViewModel(string text, Action<MessageBoxViewModel, MessageBoxResult> handler)
+    {
+        _handler = handler;
+        Text = text;
+    }
+
+    [Command]
+    public void Ok()
+    {
+        _handler.Invoke(this, MessageBoxResult.Ok);
+    }
+
+    [Command]
+    public void Cancel()
+    {
+        _handler.Invoke(this, MessageBoxResult.Cancel);
+    }
+}

src/GuiApp/Avalonia/FileTime.GuiApp.Abstractions/ViewModels/ReadInputsViewModel.cs

@@ -7,7 +7,7 @@ namespace FileTime.GuiApp.ViewModels;
 [ViewModel]
 [Inject(typeof(Action<ReadInputsViewModel>), "_cancel")]
 [Inject(typeof(Action<ReadInputsViewModel>), "_process")]
-public partial class ReadInputsViewModel : IModalViewModelBase
+public partial class ReadInputsViewModel : IModalViewModel
 {
     public string Name => "ReadInputs";
     public List<IInputElement> Inputs { get; set; }

src/GuiApp/Avalonia/FileTime.GuiApp.CustomImpl/ViewModels/GuiAppState.cs

@@ -14,8 +14,6 @@ public partial class GuiAppState : AppStateBase, IGuiAppState
 
     [Property] private bool _noCommandFound;
 
-    [Property] private string? _messageBoxText;
-
     [Property] private List<CommandBindingConfiguration> _possibleCommands = new();
 
     [Property] private BindedCollection<RootDriveInfo, string> _rootDriveInfos = new();

src/GuiApp/Avalonia/FileTime.GuiApp/Services/DefaultModeKeyInputHandler.cs

@@ -1,5 +1,6 @@
 using System.Reactive.Linq;
 using Avalonia.Input;
+using FileTime.App.Core.Models;
 using FileTime.App.Core.Services;
 using FileTime.App.Core.UserCommand;
 using FileTime.App.Core.ViewModels;
@@ -15,6 +16,7 @@ namespace FileTime.GuiApp.Services;
 public class DefaultModeKeyInputHandler : IDefaultModeKeyInputHandler
 {
     private readonly IGuiAppState _appState;
+    private readonly IModalService _modalService;
     private readonly IKeyboardConfigurationService _keyboardConfigurationService;
     private readonly List<KeyConfig[]> _keysToSkip = new();
     private ITabViewModel? _selectedTab;
@@ -22,22 +24,27 @@ public class DefaultModeKeyInputHandler : IDefaultModeKeyInputHandler
     private readonly ILogger<DefaultModeKeyInputHandler> _logger;
     private readonly IUserCommandHandlerService _userCommandHandlerService;
     private readonly IIdentifiableUserCommandService _identifiableUserCommandService;
+    private readonly BindedCollection<IModalViewModel> _openModals;
 
     public DefaultModeKeyInputHandler(
         IGuiAppState appState,
+        IModalService modalService,
         IKeyboardConfigurationService keyboardConfigurationService,
         ILogger<DefaultModeKeyInputHandler> logger,
         IUserCommandHandlerService userCommandHandlerService,
         IIdentifiableUserCommandService identifiableUserCommandService)
     {
         _appState = appState;
+        _identifiableUserCommandService = identifiableUserCommandService;
         _keyboardConfigurationService = keyboardConfigurationService;
         _logger = logger;
+        _modalService = modalService;
         _userCommandHandlerService = userCommandHandlerService;
-        _identifiableUserCommandService = identifiableUserCommandService;
 
         _appState.SelectedTab.Subscribe(t => _selectedTab = t);
         _appState.SelectedTab.Select(t => t == null ? Observable.Return<IContainer?>(null) : t.CurrentLocation!).Switch().Subscribe(l => _currentLocation = l);
+        
+        _openModals = new BindedCollection<IModalViewModel>(modalService.OpenModals);
 
         _keysToSkip.Add(new KeyConfig[] { new KeyConfig(Key.Up) });
         _keysToSkip.Add(new KeyConfig[] { new KeyConfig(Key.Down) });
@@ -59,10 +66,11 @@ public class DefaultModeKeyInputHandler : IDefaultModeKeyInputHandler
 
         if (key == Key.Escape)
         {
-            var doGeneralReset = false;
+            bool doGeneralReset = _appState.PreviousKeys.Count > 1 || _appState.IsAllShortcutVisible;
-            if (_appState.PreviousKeys.Count > 1 || _appState.IsAllShortcutVisible || _appState.MessageBoxText != null)
+
+            if ((_openModals.Collection?.Count ?? 0) > 0)
             {
-                doGeneralReset = true;
+                _modalService.CloseModal(_openModals.Collection!.Last());
             }
             /*else if (_currentLocation.Container.CanHandleEscape)
             {
@@ -90,18 +98,17 @@ public class DefaultModeKeyInputHandler : IDefaultModeKeyInputHandler
             {
                 setHandled(true);
                 _appState.IsAllShortcutVisible = false;
-                _appState.MessageBoxText = null;
                 _appState.PreviousKeys.Clear();
                 _appState.PossibleCommands = new();
             }
         }
-        else if (key == Key.Enter
+        /*else if (key == Key.Enter
                  && _appState.MessageBoxText != null)
         {
             _appState.PreviousKeys.Clear();
             //_dialogService.ProcessMessageBox();
             setHandled(true);
-        }
+        }*/
         else if (selectedCommandBinding != null)
         {
             setHandled(true);

src/GuiApp/Avalonia/FileTime.GuiApp/Services/DialogService.cs

@@ -1,6 +1,8 @@
+using System.Collections.ObjectModel;
 using System.Reactive.Linq;
 using Avalonia.Threading;
 using DynamicData;
+using FileTime.App.Core.Models;
 using FileTime.App.Core.Services;
 using FileTime.Core.Interactions;
 using FileTime.GuiApp.ViewModels;
@@ -13,6 +15,7 @@ public class DialogService : IDialogService
     private readonly IGuiAppState _guiAppState;
 
     public IObservable<ReadInputsViewModel?> ReadInput { get; }
+    public IObservable<MessageBoxViewModel?> LastMessageBox { get; }
 
     public DialogService(IModalService modalService, IGuiAppState guiAppState)
     {
@@ -22,10 +25,18 @@ public class DialogService : IDialogService
             .OpenModals
             .ToCollection()
             .Select(modals =>
-                (ReadInputsViewModel?)modals.FirstOrDefault(m => m is ReadInputsViewModel)
+                (ReadInputsViewModel?) modals.FirstOrDefault(m => m is ReadInputsViewModel)
             )
             .Publish(null)
             .RefCount();
+
+        LastMessageBox =
+            modalService
+                .OpenModals
+                .Filter(m => m is MessageBoxViewModel)
+                .Transform(m => (MessageBoxViewModel) m)
+                .ToCollection()
+                .Select(m => m.LastOrDefault());
     }
 
     public void ReadInputs(IEnumerable<IInputElement> inputs, Action inputHandler, Action? cancelHandler = null)
@@ -50,6 +61,18 @@ public class DialogService : IDialogService
         });
     }
 
+    public Task<MessageBoxResult> ShowMessageBox(string text)
+    {
+        var taskCompletionSource = new TaskCompletionSource<MessageBoxResult>();
+        _modalService.OpenModal(new MessageBoxViewModel(text, (vm, result) =>
+        {
+            _modalService.CloseModal(vm);
+            taskCompletionSource.SetResult(result);
+        }));
+
+        return taskCompletionSource.Task;
+    }
+
     private void HandleReadInputsSuccess(ReadInputsViewModel readInputsViewModel)
     {
         _modalService.CloseModal(readInputsViewModel);
@@ -66,7 +89,7 @@ public class DialogService : IDialogService
     {
         var taskCompletionSource = new TaskCompletionSource<bool>();
         ReadInputs(fields, () => taskCompletionSource.SetResult(true), () => taskCompletionSource.SetResult(false));
-        
+
         return taskCompletionSource.Task;
     }
 }

src/GuiApp/Avalonia/FileTime.GuiApp/Services/ModalService.cs

@@ -6,15 +6,15 @@ namespace FileTime.GuiApp.Services;
 
 public class ModalService : IModalService
 {
-    private readonly SourceList<IModalViewModelBase> _openModals = new();
+    private readonly SourceList<IModalViewModel> _openModals = new();
-    public IObservable<IChangeSet<IModalViewModelBase>> OpenModals { get; }
+    public IObservable<IChangeSet<IModalViewModel>> OpenModals { get; }
 
     public ModalService()
     {
         OpenModals = _openModals.Connect().StartWithEmpty();
     }
 
-    public void OpenModal(IModalViewModelBase modalToOpen) => _openModals.Add(modalToOpen);
+    public void OpenModal(IModalViewModel modalToOpen) => _openModals.Add(modalToOpen);
 
-    public void CloseModal(IModalViewModelBase modalToClose) => _openModals.Remove(modalToClose);
+    public void CloseModal(IModalViewModel modalToClose) => _openModals.Remove(modalToClose);
 }

src/GuiApp/Avalonia/FileTime.GuiApp/Services/RapidTravelModeKeyInputHandler.cs

@@ -22,7 +22,7 @@ public class RapidTravelModeKeyInputHandler : IRapidTravelModeKeyInputHandler
     private readonly IUserCommandHandlerService _userCommandHandlerService;
     private readonly ILogger<RapidTravelModeKeyInputHandler> _logger;
     private readonly IIdentifiableUserCommandService _identifiableUserCommandService;
-    private readonly BindedCollection<IModalViewModelBase> _openModals;
+    private readonly BindedCollection<IModalViewModel> _openModals;
     private ITabViewModel? _selectedTab;
 
     public RapidTravelModeKeyInputHandler(
@@ -42,7 +42,7 @@ public class RapidTravelModeKeyInputHandler : IRapidTravelModeKeyInputHandler
 
         _appState.SelectedTab.Subscribe(t => _selectedTab = t);
 
-        _openModals = new BindedCollection<IModalViewModelBase>(modalService.OpenModals);
+        _openModals = new BindedCollection<IModalViewModel>(modalService.OpenModals);
     }
 
     public async Task HandleInputKey(Key key, SpecialKeysStatus specialKeysStatus, Action<bool> setHandled)

src/GuiApp/Avalonia/FileTime.GuiApp/Views/MainWindow.axaml

@@ -326,7 +326,8 @@
                             <Grid
                                 Grid.Column="2"
                                 RowDefinitions="Auto,*">
-                                <Grid IsVisible="{Binding AppState.SelectedTab^.CurrentLocation^.IsLoading^, FallbackValue=False}">
+                                <Grid
+                                    IsVisible="{Binding AppState.SelectedTab^.CurrentLocation^.IsLoading^, FallbackValue=False}">
                                     <Image
                                         Width="40"
                                         Height="40"
@@ -443,17 +444,19 @@
                                 </Grid>
                             </Grid>
                         </Grid>
-                        
+
-                        <ItemsRepeater Items="{Binding AppState.PopupTexts}" Margin="0,0,0,20" HorizontalAlignment="Center" VerticalAlignment="Top" IsVisible="{Binding AppState.PopupTexts.Count,Converter={StaticResource NotEqualsConverter}, ConverterParameter=0}">
+                        <ItemsRepeater Items="{Binding AppState.PopupTexts}" Margin="0,0,0,20"
+                                       HorizontalAlignment="Center" VerticalAlignment="Top"
+                                       IsVisible="{Binding AppState.PopupTexts.Count,Converter={StaticResource NotEqualsConverter}, ConverterParameter=0}">
                             <ItemsRepeater.Styles>
                                 <Style Selector="TextBlock">
                                     <Style.Animations>
                                         <Animation Duration="0:0:1">
                                             <KeyFrame Cue="0%">
-                                                <Setter Property="Opacity" Value="0.0"/>
+                                                <Setter Property="Opacity" Value="0.0" />
                                             </KeyFrame>
                                             <KeyFrame Cue="100%">
-                                                <Setter Property="Opacity" Value="1.0"/>
+                                                <Setter Property="Opacity" Value="1.0" />
                                             </KeyFrame>
                                         </Animation>
                                     </Style.Animations>
@@ -461,8 +464,11 @@
                             </ItemsRepeater.Styles>
                             <ItemsRepeater.ItemTemplate>
                                 <DataTemplate x:DataType="x:String">
-                                    <Border Background="{DynamicResource ContainerGradientBackgroundBrush}" Margin="5" Padding="5">
+                                    <Border Background="{DynamicResource ContainerGradientBackgroundBrush}" Margin="5"
-                                        <TextBlock Text="{Binding}" Foreground="{DynamicResource AccentComplementBrush}" HorizontalAlignment="Center"/>
+                                            Padding="5">
+                                        <TextBlock Text="{Binding}"
+                                                   Foreground="{DynamicResource AccentComplementBrush}"
+                                                   HorizontalAlignment="Center" />
                                     </Border>
                                 </DataTemplate>
                             </ItemsRepeater.ItemTemplate>
@@ -599,6 +605,38 @@
                 </Border>
             </Border>
 
+            <Border
+                HorizontalAlignment="Stretch"
+                VerticalAlignment="Stretch"
+                IsVisible="{Binding DialogService.LastMessageBox^, Converter={x:Static ObjectConverters.IsNotNull}, FallbackValue=False}">
+                <Border
+                    Background="{DynamicResource ContainerBackgroundBrush}"
+                    HorizontalAlignment="Center"
+                    VerticalAlignment="Center"
+                    Padding="20">
+                    <Grid RowDefinitions="Auto,Auto">
+
+                        <TextBlock Text="{Binding DialogService.LastMessageBox^.Text}"/>
+                        <StackPanel
+                            Grid.Row="1"
+                            Orientation="Horizontal"
+                            Margin="0,10,0,0">
+                            <Button
+                                HorizontalContentAlignment="Center"
+                                Width="80"
+                                Command="{Binding DialogService.LastMessageBox^.OkCommand}"
+                                Content="Yes" />
+                            <Button
+                                HorizontalContentAlignment="Center"
+                                Width="80"
+                                Margin="10,0,0,0"
+                                Command="{Binding DialogService.LastMessageBox^.CancelCommand}"
+                                Content="No" />
+                        </StackPanel>
+                    </Grid>
+                </Border>
+            </Border>
+
         </Grid>
 
         <Grid IsVisible="{Binding Loading}">

src/GuiApp/Avalonia/FileTime.GuiApp/Views/MainWindow.axaml.cs

@@ -16,7 +16,7 @@ public partial class MainWindow : Window
 {
     private readonly ILogger<MainWindow>? _logger;
     private readonly IModalService _modalService;
-    private IReadOnlyCollection<IModalViewModelBase>? _openModals;
+    private IReadOnlyCollection<IModalViewModel>? _openModals;
 
     public MainWindowViewModel? ViewModel
     {

src/Providers/FileTime.Providers.Local/LocalContentProvider.cs

@@ -161,6 +161,7 @@ public sealed partial class LocalContentProvider : ContentProviderBase, ILocalCo
             false,
             "???",
             this,
+            true,
             pointInTime,
             nonNullExceptions,
             new ExtensionCollection().AsReadOnly(),
@@ -227,6 +228,7 @@ public sealed partial class LocalContentProvider : ContentProviderBase, ILocalCo
             true,
             GetDirectoryAttributes(directoryInfo),
             this,
+            true,
             pointInTime,
             exceptions,
             new ExtensionCollection().AsReadOnly(),