feat.淡入淡出动画。

LanMountainDesktop/App.axaml.cs

@@ -566,13 +566,14 @@ public partial class App : Application
 
             try
             {
-                // 先隐藏透明覆盖层窗口
                 if (_transparentOverlayWindow is not null && _transparentOverlayWindow.IsVisible)
                 {
                     _transparentOverlayWindow.Hide();
                 }
-                
+
                 var mainWindow = GetOrCreateMainWindow(desktop, source);
+                mainWindow.PrepareEnterAnimation();
+
                 mainWindow.ShowInTaskbar = true;
 
                 if (!mainWindow.IsVisible)
@@ -593,6 +594,12 @@ public partial class App : Application
                 mainWindow.Activate();
                 mainWindow.Topmost = true;
                 mainWindow.Topmost = false;
+
+                Dispatcher.UIThread.Post(() =>
+                {
+                    mainWindow.PlayEnterAnimation();
+                }, DispatcherPriority.Background);
+
                 SetDesktopShellState(DesktopShellState.ForegroundDesktop, $"Restore:{source}");
                 AppLogger.Info(
                     "DesktopShell",

LanMountainDesktop/Models/AppSettingsSnapshot.cs

@@ -152,6 +152,8 @@ public sealed class AppSettingsSnapshot
 
     public bool EnableThreeFingerSwipe { get; set; } = false;
 
+    public bool EnableSlideTransition { get; set; } = false;
+
     public bool EnableFusedDesktop { get; set; } = false;
 
     public List<string> DisabledPluginIds { get; set; } = [];

LanMountainDesktop/ViewModels/SettingsViewModels.cs

@@ -201,6 +201,7 @@ public sealed partial class GeneralSettingsPageViewModel : ViewModelBase, IDispo
         SelectedRenderMode = RenderModes.FirstOrDefault(option =>
             string.Equals(option.Value, normalizedRenderMode, StringComparison.OrdinalIgnoreCase))
             ?? RenderModes[0];
+        EnableSlideTransition = appSnapshot.EnableSlideTransition;
         _isInitializing = false;
 
         RefreshPreview();
@@ -232,6 +233,11 @@ public sealed partial class GeneralSettingsPageViewModel : ViewModelBase, IDispo
         {
             return;
         }
+
+        if (changedKeys.Contains(nameof(AppSettingsSnapshot.EnableSlideTransition)))
+        {
+            EnableSlideTransition = _settingsFacade.Settings.LoadSnapshot<AppSettingsSnapshot>(SettingsScope.App).EnableSlideTransition;
+        }
     }
 
     public event Action? RestartRequested;
@@ -251,6 +257,11 @@ public sealed partial class GeneralSettingsPageViewModel : ViewModelBase, IDispo
     [ObservableProperty]
     private SelectionOption _selectedRenderMode = new(AppRenderingModeHelper.Default, "Default");
 
+    [ObservableProperty]
+    private bool _enableSlideTransition;
+
+    public bool IsSlideTransitionAvailable => System.Runtime.InteropServices.RuntimeInformation.IsOSPlatform(System.Runtime.InteropServices.OSPlatform.Windows);
+
     [ObservableProperty]
     private string _pageTitle = string.Empty;
 
@@ -350,6 +361,24 @@ public sealed partial class GeneralSettingsPageViewModel : ViewModelBase, IDispo
         }
     }
 
+    partial void OnEnableSlideTransitionChanged(bool value)
+    {
+        if (_isInitializing) return;
+        SaveField(nameof(AppSettingsSnapshot.EnableSlideTransition), value);
+    }
+
+    private void SaveField<T>(string key, T value)
+    {
+        var snapshot = _settingsFacade.Settings.LoadSnapshot<AppSettingsSnapshot>(SettingsScope.App);
+        var property = typeof(AppSettingsSnapshot).GetProperty(key);
+        if (property is not null && property.CanWrite)
+        {
+            property.SetValue(snapshot, value);
+        }
+
+        _settingsFacade.Settings.SaveSnapshot(SettingsScope.App, snapshot, changedKeys: [key]);
+    }
+
     private IReadOnlyList<SelectionOption> CreateLanguageOptions()
     {
         return

LanMountainDesktop/Views/MainWindow.SettingsHardCut.Stubs.cs

@@ -77,7 +77,9 @@ public partial class MainWindow
                 string.Equals(key, nameof(AppSettingsSnapshot.UpdateChannel), StringComparison.OrdinalIgnoreCase) ||
                 string.Equals(key, nameof(AppSettingsSnapshot.UpdateMode), StringComparison.OrdinalIgnoreCase) ||
                 string.Equals(key, nameof(AppSettingsSnapshot.UpdateDownloadSource), StringComparison.OrdinalIgnoreCase) ||
-                string.Equals(key, nameof(AppSettingsSnapshot.UpdateDownloadThreads), StringComparison.OrdinalIgnoreCase)))
+                string.Equals(key, nameof(AppSettingsSnapshot.UpdateDownloadThreads), StringComparison.OrdinalIgnoreCase) ||
+                string.Equals(key, nameof(AppSettingsSnapshot.EnableThreeFingerSwipe), StringComparison.OrdinalIgnoreCase) ||
+                string.Equals(key, nameof(AppSettingsSnapshot.EnableSlideTransition), StringComparison.OrdinalIgnoreCase)))
             {
                 return;
             }

LanMountainDesktop/Views/MainWindow.axaml

@@ -98,9 +98,13 @@
         <Grid x:Name="DesktopPage"
               HorizontalAlignment="Stretch"
               VerticalAlignment="Stretch">
+            <Grid.RenderTransform>
+                <TranslateTransform />
+            </Grid.RenderTransform>
             <Grid.Transitions>
                 <Transitions>
-                    <DoubleTransition Property="Opacity" Duration="{StaticResource FluttermotionToken.Duration.Page}" />
+                    <DoubleTransition Property="Opacity" Duration="{StaticResource FluttermotionToken.Duration.Page}" Easing="0.05,0.75,0.10,1.00" />
+                    <DoubleTransition Property="TranslateTransform.X" Duration="{StaticResource FluttermotionToken.Duration.Intro}" Easing="0.05,0.75,0.10,1.00" />
                 </Transitions>
             </Grid.Transitions>
 

LanMountainDesktop/Views/MainWindow.axaml.cs

@@ -132,6 +132,8 @@ public partial class MainWindow : Window, ISettingsWindowAnchorProvider
     private double _currentDesktopCellGap;
     private double _currentDesktopEdgeInset;
     private string _gridSpacingPreset = "Relaxed";
+    private bool _isSlideAnimationActive;
+    private TranslateTransform? _desktopPageSlideTransform;
     private string _statusBarSpacingMode = "Relaxed";
     private int _statusBarCustomSpacingPercent = 12;
     private bool _statusBarClockTransparentBackground;
@@ -833,7 +835,103 @@ public partial class MainWindow : Window, ISettingsWindowAnchorProvider
 
     private void OnMinimizeClick(object? sender, RoutedEventArgs e)
     {
+        if (_isSlideAnimationActive)
+        {
+            return;
+        }
+
+        SlideOutAndMinimizeAsync();
+    }
+
+    private TranslateTransform GetDesktopPageSlideTransform()
+    {
+        if (_desktopPageSlideTransform is not null)
+        {
+            return _desktopPageSlideTransform;
+        }
+
+        _desktopPageSlideTransform = DesktopPage.RenderTransform as TranslateTransform;
+        if (_desktopPageSlideTransform is null)
+        {
+            _desktopPageSlideTransform = new TranslateTransform();
+            DesktopPage.RenderTransform = _desktopPageSlideTransform;
+        }
+
+        return _desktopPageSlideTransform;
+    }
+
+    private async void SlideOutAndMinimizeAsync()
+    {
+        _isSlideAnimationActive = true;
+        DesktopPage.IsHitTestVisible = false;
+
+        var useSlide = IsSlideTransitionEnabled();
+        var slideTransform = GetDesktopPageSlideTransform();
+
+        if (useSlide)
+        {
+            slideTransform.X = Bounds.Width;
+        }
+
+        DesktopPage.Opacity = 0;
+
+        await Task.Delay(useSlide
+            ? FluttermotionToken.Intro
+            : FluttermotionToken.Page);
+
+        if (!_isSlideAnimationActive)
+        {
+            return;
+        }
+
         WindowState = WindowState.Minimized;
+
+        slideTransform.X = 0;
+        DesktopPage.Opacity = 1;
+        DesktopPage.IsHitTestVisible = true;
+        _isSlideAnimationActive = false;
+    }
+
+    public void PrepareEnterAnimation()
+    {
+        _isSlideAnimationActive = false;
+
+        var useSlide = IsSlideTransitionEnabled();
+        var slideTransform = GetDesktopPageSlideTransform();
+
+        var savedTransitions = DesktopPage.Transitions;
+        DesktopPage.Transitions = null;
+
+        DesktopPage.Opacity = 0;
+
+        if (useSlide)
+        {
+            slideTransform.X = Bounds.Width > 0 ? Bounds.Width : 1920;
+        }
+
+        DesktopPage.Transitions = savedTransitions;
+        DesktopPage.IsHitTestVisible = false;
+        _isSlideAnimationActive = true;
+    }
+
+    public void PlayEnterAnimation()
+    {
+        var slideTransform = GetDesktopPageSlideTransform();
+        DesktopPage.Opacity = 1;
+        slideTransform.X = 0;
+        DesktopPage.IsHitTestVisible = true;
+        _isSlideAnimationActive = false;
+    }
+
+    private bool IsSlideTransitionEnabled()
+    {
+        if (!RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
+        {
+            return false;
+        }
+
+        var snapshot = _settingsService.LoadSnapshot<AppSettingsSnapshot>(SettingsScope.App);
+        return snapshot.EnableSlideTransition;
     }
 
     private void OnWindowPropertyChanged(object? sender, AvaloniaPropertyChangedEventArgs e)
@@ -848,8 +946,18 @@ public partial class MainWindow : Window, ISettingsWindowAnchorProvider
             return;
         }
 
+        if (_isSlideAnimationActive)
+        {
+            return;
+        }
+
         Dispatcher.UIThread.Post(() =>
         {
+            if (_isSlideAnimationActive)
+            {
+                return;
+            }
+
             if (WindowState is not (WindowState.Minimized or WindowState.FullScreen))
             {
                 WindowState = WindowState.FullScreen;

LanMountainDesktop/Views/SettingsPages/GeneralSettingsPage.axaml

@@ -106,6 +106,17 @@
                 </ui:SettingsExpanderItem>
             </ui:SettingsExpander>
 
+            <ui:SettingsExpander Header="滑入滑出过渡效果"
+                                 Description="启用后，进入和退出桌面时使用滑入滑出动画（仅 Windows）"
+                                 IsVisible="{Binding IsSlideTransitionAvailable}">
+                <ui:SettingsExpander.IconSource>
+                    <fi:SymbolIconSource Symbol="ArrowRight" />
+                </ui:SettingsExpander.IconSource>
+                <ui:SettingsExpander.Footer>
+                    <ToggleSwitch IsChecked="{Binding EnableSlideTransition}" />
+                </ui:SettingsExpander.Footer>
+            </ui:SettingsExpander>
+
         </StackPanel>
     </ScrollViewer>
 </UserControl>