[TUI] Implement changing path.

Aaru.Tui/Models/FileModel.cs

@@ -6,5 +6,6 @@ public class FileModel
 {
     public string Path            { get; set; }
     public string Filename        { get; set; }
-    public IBrush ForegroundBrush { get; set; } // Add this property for ListBox Foreground binding
+    public IBrush ForegroundBrush { get; set; }
+    public bool   IsDirectory     { get; set; }
 }

Aaru.Tui/ViewModels/Windows/MainWindowViewModel.cs

@@ -22,10 +22,13 @@ public sealed partial class MainWindowViewModel : ViewModelBase
     ObservableCollection<FileModel> _files = [];
     [ObservableProperty]
     public string _informationalVersion;
+    [ObservableProperty]
+    public FileModel _selectedFile;
 
     public MainWindowViewModel()
     {
         ExitCommand             = new RelayCommand(Exit);
+        OpenSelectedFileCommand = new RelayCommand(OpenSelectedFile, CanOpenSelectedFile);
 
         InformationalVersion =
             Assembly.GetExecutingAssembly()
@@ -36,6 +39,8 @@ public sealed partial class MainWindowViewModel : ViewModelBase
         Copyright = Assembly.GetExecutingAssembly().GetCustomAttribute<AssemblyCopyrightAttribute>()?.Copyright ?? "";
     }
 
+    public ICommand OpenSelectedFileCommand { get; }
+
     public ICommand ExitCommand { get; }
 
     void Exit()
@@ -45,33 +50,41 @@ public sealed partial class MainWindowViewModel : ViewModelBase
     }
 
     public void LoadComplete()
+    {
+        LoadFiles();
+    }
+
+    public void LoadFiles()
     {
         CurrentPath = Directory.GetCurrentDirectory();
+        Files.Clear();
 
         var parentDirectory = new FileModel
         {
             Filename = "..",
-            Path     = Path.GetRelativePath(Directory.GetCurrentDirectory(), ".."),
+            Path     = Path.GetRelativePath(CurrentPath, ".."),
             ForegroundBrush =
                 new SolidColorBrush(Color.Parse(DirColorsParser.Instance.DirectoryColor ??
-                                                DirColorsParser.Instance.NormalColor))
+                                                DirColorsParser.Instance.NormalColor)),
+            IsDirectory = true
         };
 
         Files.Add(parentDirectory);
 
-        foreach(FileModel model in Directory
+        foreach(FileModel model in Directory.GetDirectories(CurrentPath, "*", SearchOption.TopDirectoryOnly)
-                                  .GetDirectories(Directory.GetCurrentDirectory(), "*", SearchOption.TopDirectoryOnly)
                                             .Select(directory => new FileModel
                                              {
                                                  Path     = directory,
                                                  Filename = Path.GetFileName(directory),
                                                  ForegroundBrush =
-                                           new SolidColorBrush(Color.Parse(DirColorsParser.Instance.DirectoryColor ??
+                                                     new SolidColorBrush(Color.Parse(DirColorsParser.Instance
-                                                                           DirColorsParser.Instance.NormalColor))
+                                                                                .DirectoryColor ??
+                                                                             DirColorsParser.Instance.NormalColor)),
+                                                 IsDirectory = true
                                              }))
             Files.Add(model);
 
-        foreach(string file in Directory.GetFiles(Directory.GetCurrentDirectory(), "*", SearchOption.TopDirectoryOnly))
+        foreach(string file in Directory.GetFiles(CurrentPath, "*", SearchOption.TopDirectoryOnly))
         {
             var model = new FileModel
             {
@@ -90,4 +103,15 @@ public sealed partial class MainWindowViewModel : ViewModelBase
             Files.Add(model);
         }
     }
+
+    void OpenSelectedFile()
+    {
+        if(!SelectedFile.IsDirectory) return;
+
+        CurrentPath                  = SelectedFile.Path;
+        Environment.CurrentDirectory = CurrentPath;
+        LoadFiles();
+    }
+
+    bool CanOpenSelectedFile() => SelectedFile != null;
 }

Aaru.Tui/Views/Windows/MainWindow.axaml

@@ -24,10 +24,12 @@
                 <ListBox Grid.Column="0"
                          ItemsSource="{Binding Files, Mode=OneWay}"
                          BorderThickness="1"
-                         Background="Transparent">
+                         Background="Transparent"
+                         SelectedItem="{Binding SelectedFile, Mode=TwoWay}"
+                         KeyDown="ListBox_OnKeyDown">
                     <ListBox.ItemTemplate>
                         <DataTemplate DataType="models:FileModel">
-                            <TextBox Text="{Binding Filename}"
+                            <TextBox Text="{Binding Filename, Mode=OneWay}"
                                      Foreground="{Binding ForegroundBrush, Mode=OneWay}"
                                      Background="Transparent" />
                         </DataTemplate>
@@ -56,10 +58,10 @@
                                 <TextBlock Text="Aaru Data Preservation Suite"
                                            Foreground="Red"
                                            FontWeight="Bold" />
-                                <TextBlock Text="{Binding InformationalVersion}"
+                                <TextBlock Text="{Binding InformationalVersion, Mode=OneWay}"
                                            Foreground="Green"
                                            FontWeight="Bold" />
-                                <TextBlock Text="{Binding Copyright}"
+                                <TextBlock Text="{Binding Copyright, Mode=OneWay}"
                                            Foreground="Blue"
                                            FontWeight="Bold" />
                             </StackPanel>
@@ -75,7 +77,7 @@
                                            Text="Path: "
                                            Foreground="SlateBlue" />
                                 <TextBlock Grid.Column="1"
-                                           Text="{Binding CurrentPath}"
+                                           Text="{Binding CurrentPath, Mode=OneWay}"
                                            Foreground="Green" />
                             </Grid>
                         </Border>

Aaru.Tui/Views/Windows/MainWindow.axaml.cs

@@ -1,5 +1,6 @@
 using Aaru.Tui.ViewModels.Windows;
 using Avalonia.Controls;
+using Avalonia.Input;
 using Avalonia.Interactivity;
 
 namespace Aaru.Tui.Views.Windows;
@@ -11,6 +12,18 @@ public partial class MainWindow : Window
         InitializeComponent();
     }
 
+    private void ListBox_OnKeyDown(object sender, KeyEventArgs e)
+    {
+        if(e.Key == Key.Enter)
+        {
+            if(DataContext is MainWindowViewModel vm && vm.OpenSelectedFileCommand.CanExecute(null))
+            {
+                vm.OpenSelectedFileCommand.Execute(null);
+                e.Handled = true;
+            }
+        }
+    }
+
     /// <inheritdoc />
     protected override void OnLoaded(RoutedEventArgs e)
     {