UX-Update 2.0, Neues Dashboard

LehrerApp.Desktop/ViewModels/MainWindowViewModel.cs

@@ -21,10 +21,12 @@ public partial class MainWindowViewModel : ObservableObject
     [ObservableProperty] private ObservableObject? _currentPage;
     [ObservableProperty] private NavItem _activeNavItem = NavItem.Dashboard;
     [ObservableProperty] private string _currentSchoolYear = "";
+    [ObservableProperty] private bool _isCommandPaletteOpen;
 
     public SyncStatusViewModel SyncStatus { get; }
     public ObservableCollection<ToastItem> Toasts { get; }
     public AppLockViewModel AppLock { get; }
+    public GlobalSearchViewModel CommandPalette { get; }
 
     public bool IsDashboardActive => ActiveNavItem == NavItem.Dashboard;
     public bool IsGroupsActive    => ActiveNavItem == NavItem.Groups;
@@ -37,18 +39,32 @@ public partial class MainWindowViewModel : ObservableObject
 
     public MainWindowViewModel(IServiceProvider services,
         DashboardViewModel dashboard, SchoolYearService sy,
-        SyncStatusViewModel syncStatus, NotificationService notifications, AppLockViewModel appLock)
+        SyncStatusViewModel syncStatus, NotificationService notifications, AppLockViewModel appLock,
+        GlobalSearchViewModel commandPalette)
     {
         _services         = services;
         SyncStatus        = syncStatus;
         Toasts            = notifications.Toasts;
         AppLock           = appLock;
+        CommandPalette    = commandPalette;
+        CommandPalette.OnClose = CloseCommandPalette;
         CurrentSchoolYear = sy.CurrentSchoolYear();
         CurrentPage       = dashboard;
         AppLock.ApplyConfig();
         SyncStatus.DataChanged += OnSyncDataChanged;
     }
 
+    [RelayCommand]
+    private void OpenCommandPalette()
+    {
+        if (AppLock.IsLocked) return;
+        CommandPalette.Reset();
+        IsCommandPaletteOpen = true;
+    }
+
+    [RelayCommand]
+    private void CloseCommandPalette() => IsCommandPaletteOpen = false;
+
     // EventApplier schreibt bei eingehenden Sync-Ereignissen absichtlich direkt auf die rohe
     // LiteDB-Collection, an jedem ViewModel vorbei (Ping-Pong-Vermeidung, siehe EventApplier-
     // Klassenkommentar) - ohne diesen Hook blieb die gerade sichtbare Seite bis zum nächsten