Keyboard panel handling WIP

src/GuiApp/Avalonia/FileTime.GuiApp.Abstractions/Models/GuiPanel.cs

@@ -0,0 +1,9 @@
+namespace FileTime.GuiApp.Models;
+
+public enum GuiPanel
+{
+    FileBrowser,
+    Timeline,
+    Drives,
+    Favorites,
+}

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

@@ -3,6 +3,7 @@ using FileTime.App.Core.Models;
 using FileTime.App.Core.ViewModels;
 using FileTime.Core.Models;
 using FileTime.GuiApp.Configuration;
+using FileTime.GuiApp.Models;
 
 namespace FileTime.GuiApp.ViewModels;
 
@@ -15,4 +16,7 @@ public interface IGuiAppState : IAppState
     BindedCollection<RootDriveInfo, string> RootDriveInfos { get; set; }
     IReadOnlyList<PlaceInfo> Places { get; set; }
     ObservableCollection<string> PopupTexts { get; }
+    IObservable<GuiPanel> ActivePanel { get; }
+
+    void SetActivePanel(GuiPanel newPanel);
 }

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

@@ -1,18 +1,24 @@
 using System.Collections.ObjectModel;
+using System.Reactive.Linq;
+using System.Reactive.Subjects;
 using FileTime.App.Core.ViewModels;
 using FileTime.App.Core.ViewModels.Timeline;
 using FileTime.Core.Models;
 using FileTime.GuiApp.Configuration;
+using FileTime.GuiApp.Models;
 using FileTime.GuiApp.ViewModels;
 using MvvmGen;
 
 namespace FileTime.GuiApp.CustomImpl.ViewModels;
 
 [ViewModel(GenerateConstructor = false)]
-public partial class GuiAppState : AppStateBase, IGuiAppState
+public partial class GuiAppState : AppStateBase, IGuiAppState, IDisposable
 {
+    private readonly BehaviorSubject<GuiPanel> _activePanel = new(GuiPanel.FileBrowser);
+
     public GuiAppState(ITimelineViewModel timelineViewModel) : base(timelineViewModel)
     {
+        ActivePanel = _activePanel.AsObservable();
     }
 
     [Property] private bool _isAllShortcutVisible;
@@ -27,4 +33,14 @@ public partial class GuiAppState : AppStateBase, IGuiAppState
 
     public List<KeyConfig> PreviousKeys { get; } = new();
     public ObservableCollection<string> PopupTexts { get; } = new();
+
+    public IObservable<GuiPanel> ActivePanel { get; }
+
+    public void SetActivePanel(GuiPanel newPanel)
+        => _activePanel.OnNext(newPanel);
+
+    public void Dispose()
+    {
+        _activePanel.Dispose();
+    }
 }

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

@@ -11,6 +11,12 @@ public class KeyInputHandlerService : IKeyInputHandlerService
     private readonly IDefaultModeKeyInputHandler _defaultModeKeyInputHandler;
     private readonly IRapidTravelModeKeyInputHandler _rapidTravelModeKeyInputHandler;
     private ViewMode _viewMode;
+    private GuiPanel _activePanel;
+    private readonly Dictionary<(GuiPanel, Key), GuiPanel> _panelMovements = new()
+    {
+        [(GuiPanel.FileBrowser, Key.Up)] = GuiPanel.Timeline,
+        [(GuiPanel.Timeline, Key.Down)] = GuiPanel.FileBrowser,
+    };
 
     public KeyInputHandlerService(
         IGuiAppState appState,
@@ -23,6 +29,7 @@ public class KeyInputHandlerService : IKeyInputHandlerService
         _rapidTravelModeKeyInputHandler = rapidTravelModeKeyInputHandler;
 
         appState.ViewMode.Subscribe(v => _viewMode = v);
+        appState.ActivePanel.Subscribe(p => _activePanel = p);
     }
 
     public async Task ProcessKeyDown(Key key, KeyModifiers keyModifiers, Action<bool> setHandled)
@@ -43,8 +50,19 @@ public class KeyInputHandlerService : IKeyInputHandlerService
         var isShiftPressed = (keyModifiers & KeyModifiers.Shift) == KeyModifiers.Shift;
         var isCtrlPressed = (keyModifiers & KeyModifiers.Control) == KeyModifiers.Control;
 
+        if (isCtrlPressed
+                && key is Key.Left or Key.Right or Key.Up or Key.Down
+                && _panelMovements.TryGetValue((_activePanel, key), out var newPanel))
+        {
+            _appState.SetActivePanel(newPanel);
+            setHandled(true);
+            return;
+        }
+
         var specialKeyStatus = new SpecialKeysStatus(isAltPressed, isShiftPressed, isCtrlPressed);
 
+        if (_activePanel == GuiPanel.FileBrowser)
+        {
             if (_viewMode == ViewMode.Default)
             {
                 await _defaultModeKeyInputHandler.HandleInputKey(key, specialKeyStatus, setHandled);
@@ -54,4 +72,17 @@ public class KeyInputHandlerService : IKeyInputHandlerService
                 await _rapidTravelModeKeyInputHandler.HandleInputKey(key, specialKeyStatus, setHandled);
             }
         }
+        else if (_activePanel == GuiPanel.Timeline)
+        {
+            // await HandleTimelineKey(key, specialKeyStatus, setHandled);
+        }
+        else if (_activePanel == GuiPanel.Drives)
+        {
+            // await HandleDrivesKey(key, specialKeyStatus, setHandled);
+        }
+        else if (_activePanel == GuiPanel.Favorites)
+        {
+            // await HandleFavoritesKey(key, specialKeyStatus, setHandled);
+        }
+    }
 }