fix #84

BetterLyrics.WinUI3/BetterLyrics.WinUI3 (Package)/Package.appxmanifest

@@ -12,7 +12,7 @@
 	<Identity
 	  Name="37412.BetterLyrics"
 	  Publisher="CN=E1428B0E-DC1D-4EA4-ACB1-4556569D5BA9"
-	  Version="1.0.53.0" />
+	  Version="1.0.56.0" />
 
 	<mp:PhoneIdentity PhoneProductId="ca4a4830-fc19-40d9-b823-53e2bff3d816" PhonePublisherId="00000000-0000-0000-0000-000000000000"/>
 

BetterLyrics.WinUI3/BetterLyrics.WinUI3/BetterLyrics.WinUI3.csproj

@@ -26,7 +26,6 @@
 		<None Remove="Controls\AllLyricsSettingsControl.xaml" />
 		<None Remove="Controls\AppSettingsControl.xaml" />
 		<None Remove="Controls\ExtendedSlider.xaml" />
-		<None Remove="Controls\LyricsBavkgroundSettingsControl.xaml" />
 		<None Remove="Controls\LyricsSettingsControl.xaml" />
 		<None Remove="Controls\MediaSettingsControl.xaml" />
 		<None Remove="Controls\PlaybackSettingsControl.xaml" />
@@ -61,6 +60,7 @@
 		<PackageReference Include="CommunityToolkit.WinUI.Media" Version="8.2.250402" />
 		<PackageReference Include="Dubya.WindowsMediaController" Version="2.5.5" />
 		<PackageReference Include="H.NotifyIcon.WinUI" Version="2.3.0" />
+		<PackageReference Include="Hqub.Last.fm" Version="2.5.1" />
 		<PackageReference Include="Lyricify.Lyrics.Helper-NativeAot" Version="0.1.4-alpha.5" />
 		<PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="9.0.8" />
 		<PackageReference Include="Microsoft.Extensions.Logging" Version="9.0.8" />
@@ -87,11 +87,6 @@
 		<PackageReference Include="WinUIEx" Version="2.6.0" />
 		<PackageReference Include="z440.atl.core" Version="7.2.0" />
 	</ItemGroup>
-	<ItemGroup>
-	  <Reference Include="Hqub.Lastfm">
-	    <HintPath>..\..\..\Last.fm\src\Hqub.Lastfm\bin\Release\netstandard2.0\Hqub.Lastfm.dll</HintPath>
-	  </Reference>
-	</ItemGroup>
 	<ItemGroup>
 		<Page Update="Rendering\InAppLyricsRenderer.xaml">
 			<Generator>MSBuild:Compile</Generator>
@@ -222,7 +217,7 @@
 	  </Page>
 	</ItemGroup>
 	<ItemGroup>
-	  <Page Update="Controls\LyricsBavkgroundSettingsControl.xaml">
+	  <Page Update="Controls\LyricsBackgroundSettingsControl.xaml">
 	    <Generator>MSBuild:Compile</Generator>
 	  </Page>
 	</ItemGroup>

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Controls/AppSettingsControl.xaml

@@ -55,6 +55,7 @@
                             <ComboBoxItem x:Uid="SettingsPageAutoStartInAppLyrics" />
                             <ComboBoxItem x:Uid="SettingsPageAutoStartDockLyrics" />
                             <ComboBoxItem x:Uid="SettingsPageAutoStartDesktopLyrics" />
+                            <ComboBoxItem x:Uid="SettingsPageAutoStartPIPLyrics" />
                         </ComboBox>
                     </controls:SettingsCard>
 

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Controls/LyricsBackgroundSettingsControl.xaml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8" ?>
 <UserControl
-    x:Class="BetterLyrics.WinUI3.Controls.LyricsBavkgroundSettingsControl"
+    x:Class="BetterLyrics.WinUI3.Controls.LyricsBackgroundSettingsControl"
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
     xmlns:controls="using:CommunityToolkit.WinUI.Controls"

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Controls/LyricsBackgroundSettingsControl.xaml.cs

@@ -20,11 +20,11 @@ using Windows.Foundation.Collections;
 
 namespace BetterLyrics.WinUI3.Controls
 {
-    public sealed partial class LyricsBavkgroundSettingsControl : UserControl
+    public sealed partial class LyricsBackgroundSettingsControl : UserControl
     {
         public LyricsBackgroundSettingsControlViewModel ViewModel => (LyricsBackgroundSettingsControlViewModel)DataContext;
 
-        public LyricsBavkgroundSettingsControl()
+        public LyricsBackgroundSettingsControl()
         {
             InitializeComponent();
             DataContext = Ioc.Default.GetRequiredService<LyricsBackgroundSettingsControlViewModel>();

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Controls/LyricsSettingsControl.xaml

@@ -234,14 +234,46 @@
                         <ToggleSwitch IsOn="{x:Bind LyricsEffectSettings.IsLyricsLineFadeEnabled, Mode=TwoWay}" />
                     </controls:SettingsCard>
 
-                    <!--  高亮  -->
-                    <controls:SettingsCard x:Uid="SettingsPageLyricsHighlightScope" HeaderIcon="{ui:FontIcon FontFamily={StaticResource IconFontFamily}, Glyph=&#xE7E6;}">
+                    <!--  译文高亮  -->
+                    <controls:SettingsExpander
+                        x:Uid="SettingsPageLyricsTranslationHighlight"
+                        HeaderIcon="{ui:FontIcon FontFamily={StaticResource IconFontFamily},
+                                                 Glyph=&#xE7E6;}"
+                        IsExpanded="True">
+                        <controls:SettingsExpander.Items>
+                            <controls:SettingsCard x:Uid="SettingsPageAmount">
+                                <local:ExtendedSlider
+                                    Default="60"
+                                    Frequency="5"
+                                    Maximum="100"
+                                    Minimum="0"
+                                    Value="{x:Bind LyricsEffectSettings.LyricsTranslationHighlightAmount, Mode=TwoWay}" />
+                            </controls:SettingsCard>
+                        </controls:SettingsExpander.Items>
+                    </controls:SettingsExpander>
+
+                    <!--  原文高亮  -->
+                    <controls:SettingsExpander
+                        x:Uid="SettingsPageLyricsHighlightScope"
+                        HeaderIcon="{ui:FontIcon FontFamily={StaticResource IconFontFamily},
+                                                 Glyph=&#xE7E6;}"
+                        IsExpanded="True">
                         <ComboBox SelectedIndex="{x:Bind LyricsEffectSettings.LyricsHighlightScope, Mode=TwoWay, Converter={StaticResource EnumToIntConverter}}">
                             <ComboBoxItem x:Uid="SettingsPageLyricsRendingScopeCurrentChar" />
                             <ComboBoxItem x:Uid="SettingsPageLyricsRendingScopeLineStartToCurrentChar" />
                             <ComboBoxItem x:Uid="SettingsPageLyricsRendingScopeCurrentLine" />
                         </ComboBox>
-                    </controls:SettingsCard>
+                        <controls:SettingsExpander.Items>
+                            <controls:SettingsCard x:Uid="SettingsPageAmount">
+                                <local:ExtendedSlider
+                                    Default="100"
+                                    Frequency="5"
+                                    Maximum="100"
+                                    Minimum="0"
+                                    Value="{x:Bind LyricsEffectSettings.LyricsHighlightAmount, Mode=TwoWay}" />
+                            </controls:SettingsCard>
+                        </controls:SettingsExpander.Items>
+                    </controls:SettingsExpander>
 
                     <!--  阴影  -->
                     <controls:SettingsExpander
@@ -319,6 +351,7 @@
                         <ToggleSwitch IsOn="{x:Bind LyricsEffectSettings.IsFanLyricsEnabled, Mode=TwoWay}" />
                     </controls:SettingsCard>
 
+                    <!--  滚动动画  -->
                     <controls:SettingsExpander
                         x:Uid="SettingsPageScrollEasing"
                         HeaderIcon="{ui:FontIcon FontFamily={StaticResource IconFontFamily},
@@ -341,7 +374,6 @@
                         <controls:SettingsExpander.Items>
                             <controls:SettingsCard x:Uid="SettingsPageScrollTopDuration">
                                 <local:ExtendedSlider
-                                    x:Uid="SettingsPageLyricsScrollTopDurationExtendedSlider"
                                     Default="500"
                                     Frequency="50"
                                     Maximum="1000"
@@ -351,7 +383,6 @@
                             </controls:SettingsCard>
                             <controls:SettingsCard x:Uid="SettingsPageScrollDuration">
                                 <local:ExtendedSlider
-                                    x:Uid="SettingsPageLyricsScrollDurationExtendedSlider"
                                     Default="500"
                                     Frequency="50"
                                     Maximum="1000"
@@ -361,7 +392,6 @@
                             </controls:SettingsCard>
                             <controls:SettingsCard x:Uid="SettingsPageScrollBottomDuration">
                                 <local:ExtendedSlider
-                                    x:Uid="SettingsPageLyricsScrollBottomDurationExtendedSlider"
                                     Default="500"
                                     Frequency="50"
                                     Maximum="1000"
@@ -369,6 +399,24 @@
                                     Unit="ms"
                                     Value="{x:Bind LyricsEffectSettings.LyricsScrollBottomDuration, Mode=TwoWay}" />
                             </controls:SettingsCard>
+                            <controls:SettingsCard x:Uid="SettingsPageScrollTopDelay">
+                                <local:ExtendedSlider
+                                    Default="0"
+                                    Frequency="50"
+                                    Maximum="2000"
+                                    Minimum="0"
+                                    Unit="ms"
+                                    Value="{x:Bind LyricsEffectSettings.LyricsScrollTopDelay, Mode=TwoWay}" />
+                            </controls:SettingsCard>
+                            <controls:SettingsCard x:Uid="SettingsPageScrollBottomDelay">
+                                <local:ExtendedSlider
+                                    Default="0"
+                                    Frequency="50"
+                                    Maximum="2000"
+                                    Minimum="0"
+                                    Unit="ms"
+                                    Value="{x:Bind LyricsEffectSettings.LyricsScrollBottomDelay, Mode=TwoWay}" />
+                            </controls:SettingsCard>
                         </controls:SettingsExpander.Items>
                     </controls:SettingsExpander>
 

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Controls/ShortcutTextBox.xaml

@@ -24,6 +24,14 @@
                                       FontSize=12,
                                       Glyph=}"
                 Style="{StaticResource GhostButtonStyle}" />
+            <Button
+                Margin="3,0,0,0"
+                HorizontalAlignment="Right"
+                Click="CheckButton_Click"
+                Content="{ui:FontIcon FontFamily={StaticResource IconFontFamily},
+                                      FontSize=12,
+                                      Glyph=&#xE721;}"
+                Style="{StaticResource GhostButtonStyle}" />
         </StackPanel>
     </Grid>
 </UserControl>

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Controls/ShortcutTextBox.xaml.cs

@@ -1,3 +1,4 @@
+using BetterLyrics.WinUI3.Helper;
 using Microsoft.UI.Input;
 using Microsoft.UI.Xaml;
 using Microsoft.UI.Xaml.Controls;
@@ -91,5 +92,22 @@ namespace BetterLyrics.WinUI3.Controls
             Shortcut = [];
             UpdateTextBox();
         }
+
+        private void CheckButton_Click(object sender, RoutedEventArgs e)
+        {
+            bool registered = GlobalHotKeyHelper.IsHotKeyRegistered(Shortcut);
+            if (registered)
+            {
+                App.Current.SettingsWindowNotificationPanel?.Notify(
+                     App.ResourceLoader!.GetString("SettingsPageShortcutRegSuccessInfo"),
+                     InfoBarSeverity.Success);
+            }
+            else
+            {
+                App.Current.SettingsWindowNotificationPanel?.Notify(
+                    App.ResourceLoader!.GetString("SettingsPageShortcutRegFailInfo"),
+                    InfoBarSeverity.Error);
+            }
+        }
     }
 }

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Events/LyricsChangedEventArgs.cs

@@ -0,0 +1,14 @@
+using BetterLyrics.WinUI3.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BetterLyrics.WinUI3.Events
+{
+    public class LyricsChangedEventArgs(LyricsData? lyricsData) : EventArgs
+    {
+        public LyricsData? LyricsData { get; } = lyricsData;
+    }
+}

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Helper/CanvasHelper.cs

@@ -262,17 +262,50 @@ namespace BetterLyrics.WinUI3.Helper
             return mask;
         }
 
+        public static CanvasCommandList CreateTranslationHighlightMask(ICanvasAnimatedControl control, LyricsLine lyricsLine)
+        {
+            var mask = new CanvasCommandList(control);
+            using var ds = mask.CreateDrawingSession();
+
+            if (lyricsLine.CanvasTextLayout == null)
+            {
+                return mask;
+            }
+
+            var regions = lyricsLine.CanvasTextLayout.GetCharacterRegions(lyricsLine.OriginalText.Length, lyricsLine.DisplayedText.Length - lyricsLine.OriginalText.Length);
+            if (regions.Length > 0)
+            {
+                for (int j = 0; j < regions.Length; j++)
+                {
+                    var region = regions[j];
+                    var rect = new Rect(
+                        region.LayoutBounds.X,
+                        region.LayoutBounds.Y + lyricsLine.Position.Y,
+                        region.LayoutBounds.Width,
+                        region.LayoutBounds.Height
+                    );
+                    ds.FillRectangle(rect, Colors.White);
+                }
+            }
+
+            return mask;
+        }
+
         /// <summary>
         /// 创建高亮效果层
         /// </summary>
         /// <param name="control"></param>
         /// <param name="lineRenderingType"></param>
-        public static AlphaMaskEffect CreateForegroundHighlightEffect(CanvasCommandList foregroundFontEffect, IGraphicsEffectSource mask)
+        public static OpacityEffect CreateForegroundHighlightEffect(CanvasCommandList foregroundFontEffect, IGraphicsEffectSource mask, double opacity)
         {
-            return new AlphaMaskEffect
+            return new OpacityEffect
             {
-                Source = foregroundFontEffect,
-                AlphaMask = mask,
+                Source = new AlphaMaskEffect
+                {
+                    Source = foregroundFontEffect,
+                    AlphaMask = mask,
+                },
+                Opacity = (float)opacity,
             };
         }
 
@@ -291,6 +324,19 @@ namespace BetterLyrics.WinUI3.Helper
             };
         }
 
+        public static OpacityEffect CreateForegroundTranslationEffect(CanvasCommandList foregroundFontEffect, IGraphicsEffectSource mask, double opacity)
+        {
+            return new OpacityEffect
+            {
+                Source = new AlphaMaskEffect
+                {
+                    Source = foregroundFontEffect,
+                    AlphaMask = mask,
+                },
+                Opacity = (float)opacity,
+            };
+        }
+
         public static IGraphicsEffectSource GetAlphaMask(ICanvasAnimatedControl control, IGraphicsEffectSource charMask, IGraphicsEffectSource lineStartToCharMask, IGraphicsEffectSource lineMask, LineRenderingType lineRenderingType)
         {
             var result = lineRenderingType switch

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Helper/GlobalHotKeyHelper.cs

@@ -13,7 +13,8 @@ namespace BetterLyrics.WinUI3.Helper
 {
     public class GlobalHotKeyHelper
     {
-        private static Dictionary<int, Action> _hotKeyActions = [];
+        private static Dictionary<int, Action> _actions = [];
+        private static Dictionary<int, List<string>> _keys = [];
 
         /// <summary>
         /// Register a global hotkey for a specific window type
@@ -22,7 +23,7 @@ namespace BetterLyrics.WinUI3.Helper
         /// <param name="id"></param>
         /// <param name="keys"></param>
         /// <param name="action"></param>
-        public static void RegisterHotKey<T>(ShortcutID id, List<string> keys, Action action)
+        private static void RegisterHotKey<T>(ShortcutID id, List<string> keys, Action action)
         {
             if (keys.Count == 0) return;
 
@@ -55,18 +56,23 @@ namespace BetterLyrics.WinUI3.Helper
                     key = (VirtualKey)Enum.Parse(typeof(VirtualKey), item, true);
                 }
             }
-            User32.RegisterHotKey(hwnd, (int)id, modifiers, (uint)key);
-            _hotKeyActions[(int)id] = action;
+            bool success = User32.RegisterHotKey(hwnd, (int)id, modifiers, (uint)key);
+            if (success)
+            {
+                _actions[(int)id] = action;
+                _keys[(int)id] = keys;
+            }
         }
 
-        public static void UnregisterHotKey<T>(ShortcutID id)
+        private static void UnregisterHotKey<T>(ShortcutID id)
         {
             var window = WindowHelper.GetWindowByWindowType<T>();
             if (window == null) return;
 
             HWND hwnd = WindowNative.GetWindowHandle(window);
             User32.UnregisterHotKey(hwnd, (int)id);
-            _hotKeyActions.Remove((int)id);
+            _actions.Remove((int)id);
+            _keys.Remove((int)id);
         }
 
         public static void UpdateHotKey<T>(ShortcutID id, List<string> keys, Action action)
@@ -75,6 +81,16 @@ namespace BetterLyrics.WinUI3.Helper
             RegisterHotKey<T>(id, keys, action);
         }
 
+        public static bool IsHotKeyRegistered(ShortcutID id)
+        {
+            return _actions.ContainsKey((int)id);
+        }
+
+        public static bool IsHotKeyRegistered(List<string> keys)
+        {
+            return _keys.ContainsValue(keys);
+        }
+
         public static bool TryInvokeAction(ShortcutID id)
         {
             return TryInvokeAction((int)id);
@@ -82,7 +98,7 @@ namespace BetterLyrics.WinUI3.Helper
 
         public static bool TryInvokeAction(int id)
         {
-            if (_hotKeyActions.TryGetValue(id, out var action))
+            if (_actions.TryGetValue(id, out var action))
             {
                 action?.Invoke();
                 return true;

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Helper/ImageHelper.cs

@@ -177,7 +177,7 @@ namespace BetterLyrics.WinUI3.Helper
             square.Mutate(ctx => ctx.DrawImage(image, new Point(offsetX, offsetY), 1f));
 
             using var ms = new MemoryStream();
-            square.Save(ms, new JpegEncoder());
+            square.Save(ms, new PngEncoder());
             return ms.ToArray();
         }
 

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Helper/LanguageHelper.cs

@@ -58,6 +58,11 @@ namespace BetterLyrics.WinUI3.Services
             _identifier = _factory.Load(PathHelper.LanguageProfilePath);
         }
 
+        private static string SimplifiedChineseOrTraditionalChinese(string text)
+        {
+            return text == ChineseConverter.ConvertToSimplifiedChinese(text) ? "zh-Hans" : "zh-Hant";
+        }
+
         public static string? DetectLanguageCode(string? text)
         {
             if (text == null) return null;
@@ -67,9 +72,9 @@ namespace BetterLyrics.WinUI3.Services
             code = code switch
             {
                 "simple" => "en",
-                "zh_classical" => "zh-Hant",
-                "zh_yue" => "zh-Hant",
-                "zh" => text == ChineseConverter.ConvertToSimplifiedChinese(text) ? "zh-Hans" : "zh-Hant",
+                "zh_classical" => SimplifiedChineseOrTraditionalChinese(text),
+                "zh_yue" => SimplifiedChineseOrTraditionalChinese(text),
+                "zh" => SimplifiedChineseOrTraditionalChinese(text),
                 _ => code
             };
             return code;

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Helper/LatestOnlyTaskRunner.cs

@@ -7,11 +7,11 @@ using System.Threading.Tasks;
 
 namespace BetterLyrics.WinUI3.Helper
 {
-    public class BackgroundTaskRunner
+    public class LatestOnlyTaskRunner
     {
         private CancellationTokenSource? _cts;
 
-        public void Run(Func<CancellationToken, Task> taskFactory)
+        public async Task RunAsync(Func<CancellationToken, Task> taskFactory)
         {
             _cts?.Cancel();
             _cts?.Dispose();
@@ -19,19 +19,16 @@ namespace BetterLyrics.WinUI3.Helper
             _cts = new CancellationTokenSource();
             var token = _cts.Token;
 
-            _ = Task.Run(async () =>
+            try
             {
-                try
-                {
-                    await taskFactory(token);
-                }
-                catch (OperationCanceledException)
-                {
-                }
-                catch (Exception)
-                {
-                }
-            }, token);
+                await taskFactory(token);
+            }
+            catch (OperationCanceledException)
+            {
+            }
+            catch (Exception)
+            {
+            }
         }
     }
 }

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Helper/PointHelper.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Windows.Foundation;
+using Windows.Graphics;
+
+namespace BetterLyrics.WinUI3.Helper
+{
+    public static class PointHelper
+    {
+        public static PointInt32 ToPointInt32(this Point point)
+        {
+            return new PointInt32((int)point.X, (int)point.Y);
+        }
+    }
+}

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Helper/ValueTransition.cs

@@ -1,7 +1,6 @@
 // 2025/6/23 by Zhe Fang
 
 using System;
-using System.Diagnostics;
 using BetterLyrics.WinUI3.Enums;
 
 namespace BetterLyrics.WinUI3.Helper
@@ -11,6 +10,8 @@ namespace BetterLyrics.WinUI3.Helper
     {
         private T _currentValue;
         private double _durationSeconds;
+        private double _delaySeconds;
+        private double _delayRemaining;
         private EasingType? _easingType;
         private Func<T, T, double, T> _interpolator;
         private bool _isTransitioning;
@@ -19,18 +20,21 @@ namespace BetterLyrics.WinUI3.Helper
         private T _targetValue;
 
         public double DurationSeconds => _durationSeconds;
+        public double DelaySeconds => _delaySeconds;
 
         public bool IsTransitioning => _isTransitioning;
         public T Value => _currentValue;
         public T TargetValue => _targetValue;
         public EasingType? EasingType => _easingType;
 
-        public ValueTransition(T initialValue, double durationSeconds, Func<T, T, double, T>? interpolator = null, EasingType? easingType = null)
+        public ValueTransition(T initialValue, double durationSeconds, Func<T, T, double, T>? interpolator = null, EasingType? easingType = null, double delaySeconds = 0)
         {
             _currentValue = initialValue;
             _startValue = initialValue;
             _targetValue = initialValue;
             _durationSeconds = durationSeconds;
+            _delaySeconds = delaySeconds;
+            _delayRemaining = 0;
             _progress = 1f;
             _isTransitioning = false;
 
@@ -58,12 +62,18 @@ namespace BetterLyrics.WinUI3.Helper
             _durationSeconds = seconds;
         }
 
+        public void SetDelay(double seconds)
+        {
+            _delaySeconds = seconds;
+        }
+
         private void JumpTo(T value)
         {
             _currentValue = value;
             _startValue = value;
             _targetValue = value;
             _progress = 1f;
+            _delayRemaining = 0;
             _isTransitioning = false;
         }
 
@@ -73,6 +83,7 @@ namespace BetterLyrics.WinUI3.Helper
             _startValue = value;
             _targetValue = value;
             _progress = 0f;
+            _delayRemaining = 0;
             _isTransitioning = false;
         }
 
@@ -89,6 +100,7 @@ namespace BetterLyrics.WinUI3.Helper
                 _startValue = _currentValue;
                 _targetValue = targetValue;
                 _progress = 0f;
+                _delayRemaining = _delaySeconds;
                 _isTransitioning = true;
             }
         }
@@ -103,7 +115,24 @@ namespace BetterLyrics.WinUI3.Helper
         {
             if (!_isTransitioning) return;
 
-            _progress += (double)(elapsedTime / TimeSpan.FromSeconds(_durationSeconds));
+            if (_delayRemaining > 0)
+            {
+                double consume = Math.Min(_delayRemaining, elapsedTime.TotalSeconds);
+                _delayRemaining -= consume;
+                if (_delayRemaining > 0)
+                    return;
+                elapsedTime = TimeSpan.FromSeconds(elapsedTime.TotalSeconds - consume);
+            }
+
+            if (_durationSeconds <= 0)
+            {
+                _progress = 1f;
+            }
+            else
+            {
+                _progress += elapsedTime.TotalSeconds / _durationSeconds;
+            }
+
             if (_progress >= 1f)
             {
                 _progress = 1f;
@@ -178,4 +207,4 @@ namespace BetterLyrics.WinUI3.Helper
             _interpolator = GetInterpolatorByEasingType(easingType);
         }
     }
-}
+}

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Models/MediaSourceProviderInfo.cs

@@ -40,8 +40,8 @@ namespace BetterLyrics.WinUI3.Models
                     PositionOffset = 1000;
                     break;
                 default:
-                    // 设置 100 以防不必要的重复同步
-                    TimelineSyncThreshold = 100;
+                    // 设置 300 以防不必要的重复同步
+                    TimelineSyncThreshold = 300;
                     PositionOffset = 0;
                     break;
             }

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Models/Settings/LyricsEffectSettings.cs

@@ -23,7 +23,10 @@ namespace BetterLyrics.WinUI3.Models.Settings
         [ObservableProperty][NotifyPropertyChangedRecipients] public partial int LyricsShadowAmount { get; set; } = 8;
 
         [ObservableProperty][NotifyPropertyChangedRecipients] public partial LineRenderingType LyricsHighlightScope { get; set; } = LineRenderingType.LineStartToCurrentChar;
+        [ObservableProperty][NotifyPropertyChangedRecipients] public partial int LyricsHighlightAmount { get; set; } = 100; // 100% 是上界
         
+        [ObservableProperty][NotifyPropertyChangedRecipients] public partial int LyricsTranslationHighlightAmount { get; set; } = 60; // 100% 是上界
+
         [ObservableProperty][NotifyPropertyChangedRecipients] public partial bool IsLyricsFloatAnimationEnabled { get; set; } = true;
         [ObservableProperty][NotifyPropertyChangedRecipients] public partial int LyricsFloatAmount { get; set; } = 1;
 
@@ -31,6 +34,8 @@ namespace BetterLyrics.WinUI3.Models.Settings
         [ObservableProperty][NotifyPropertyChangedRecipients] public partial int LyricsScrollDuration { get; set; }
         [ObservableProperty][NotifyPropertyChangedRecipients] public partial int LyricsScrollTopDuration { get; set; }
         [ObservableProperty][NotifyPropertyChangedRecipients] public partial int LyricsScrollBottomDuration { get; set; }
+        [ObservableProperty][NotifyPropertyChangedRecipients] public partial int LyricsScrollTopDelay { get; set; } = 0;
+        [ObservableProperty][NotifyPropertyChangedRecipients] public partial int LyricsScrollBottomDelay { get; set; } = 0;
 
         [ObservableProperty][NotifyPropertyChangedRecipients] public partial int LyricsVerticalEdgeOpacity { get; set; } = 0; // 0% opacity
         [ObservableProperty][NotifyPropertyChangedRecipients] public partial bool IsFanLyricsEnabled { get; set; } = false;

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Models/Settings/PictureInPictureModeSettings.cs

@@ -4,11 +4,13 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using Windows.Foundation;
 
 namespace BetterLyrics.WinUI3.Models.Settings
 {
     public partial class PictureInPictureModeSettings : BaseModeSettings
     {
+        [ObservableProperty][NotifyPropertyChangedRecipients] public partial Point WindowPosition { get; set; } = new Point(100, 100);
         [ObservableProperty][NotifyPropertyChangedRecipients] public partial List<string> ToggleShortcut { get; set; } = new List<string>() { "Ctrl", "Shift", "P" };
 
         public PictureInPictureModeSettings()

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Models/Settings/StandardModeSettings.cs

@@ -13,7 +13,8 @@ namespace BetterLyrics.WinUI3.Models.Settings
     public partial class StandardModeSettings : BaseModeSettings
     {
         [ObservableProperty][NotifyPropertyChangedRecipients] public partial Rect WindowBounds { get; set; } = new Rect(100, 100, 1000, 600);
-    
+        [ObservableProperty][NotifyPropertyChangedRecipients] public partial bool IsMaximized { get; set; } = false;
+
         public StandardModeSettings()
         {
             LyricsDisplayType = LyricsDisplayType.SplitView;

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Renderer/LyricsRenderer.xaml

@@ -16,15 +16,5 @@
             x:Name="LyricsCanvas"
             Draw="LyricsCanvas_Draw"
             Update="LyricsCanvas_Update" />
-        <Grid
-            Margin="36"
-            HorizontalAlignment="Right"
-            VerticalAlignment="Top"
-            Visibility="{x:Bind ViewModel.IsTranslating, Mode=OneWay, Converter={StaticResource BoolToVisibilityConverter}}">
-            <FontIcon
-                x:Name="RotatingIcon"
-                FontFamily="{StaticResource IconFontFamily}"
-                Glyph="&#xE8C1;" />
-        </Grid>
     </Grid>
 </UserControl>

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Services/AlbumArtSearchService/AlbumArtSearchService.cs

@@ -31,6 +31,11 @@ namespace BetterLyrics.WinUI3.Services.AlbumArtSearchService
         }
 
         public async Task<byte[]?> SearchAsync(string mediaSessionId, string title, string artist, string album, byte[]? bytesFromSMTC = null)
+        {
+            return await Task.Run(async () => await SearchAsyncCore(mediaSessionId, title, artist, album, bytesFromSMTC));
+        }
+
+        public async Task<byte[]?> SearchAsyncCore(string mediaSessionId, string title, string artist, string album, byte[]? bytesFromSMTC = null)
         {
             byte[]? result = null;
 

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Services/LyricsSearchService/LyricsSearchService.cs

@@ -88,6 +88,11 @@ namespace BetterLyrics.WinUI3.Services.LyricsSearchService
         }
 
         public async Task<(string?, LyricsSearchProvider?)> SearchAsync(string mediaSessionId, string title, string artist, string album, double durationMs, CancellationToken token)
+        {
+            return await Task.Run(async () => await SearchAsyncCore(mediaSessionId, title, artist, album, durationMs, token), token);
+        }
+
+        private async Task<(string?, LyricsSearchProvider?)> SearchAsyncCore(string mediaSessionId, string title, string artist, string album, double durationMs, CancellationToken token)
         {
             _logger.LogInformation("Searching img for: {Title} - {Artist} (Album: {Album}, Duration: {DurationMs}ms)", title, artist, album, durationMs);
 

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Services/MediaSessionsService/IMediaSessionsService.cs

@@ -1,9 +1,12 @@
 // 2025/6/23 by Zhe Fang
 
-using System;
-using System.Threading.Tasks;
+using BetterLyrics.WinUI3.Enums;
 using BetterLyrics.WinUI3.Events;
 using BetterLyrics.WinUI3.Models;
+using System;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using TagLib.Riff;
 
 namespace BetterLyrics.WinUI3.Services.MediaSessionsService
 {
@@ -12,7 +15,8 @@ namespace BetterLyrics.WinUI3.Services.MediaSessionsService
         event EventHandler<IsPlayingChangedEventArgs>? IsPlayingChanged;
         event EventHandler<TimelineChangedEventArgs>? TimelineChanged;
         event EventHandler<SongInfoChangedEventArgs>? SongInfoChanged;
-        event EventHandler<AlbumArtChangedEventArgs>? AlbumArtChangedChanged;
+        event EventHandler<AlbumArtChangedEventArgs>? AlbumArtChanged;
+        event EventHandler<LyricsChangedEventArgs>? LyricsChanged;
         event EventHandler<MediaSourceProvidersInfoEventArgs>? MediaSourceProvidersInfoChanged;
 
         Task PlayAsync();
@@ -26,5 +30,8 @@ namespace BetterLyrics.WinUI3.Services.MediaSessionsService
         bool IsPlaying { get; }
         SongInfo? SongInfo { get; }
         TimeSpan Position { get; }
+
+        LyricsSearchProvider? LyricsSearchProvider { get; }
+        TranslationSearchProvider? TranslationSearchProvider { get; }
     }
 }

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Services/MediaSessionsService/MediaSessionsService.AlbumArtUpdater.cs

@@ -0,0 +1,69 @@
+using BetterLyrics.WinUI3.Events;
+using BetterLyrics.WinUI3.Helper;
+using Microsoft.Extensions.Logging;
+using Microsoft.UI.Dispatching;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Runtime.InteropServices.WindowsRuntime;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+using Windows.Graphics.Imaging;
+using Windows.Storage.Streams;
+
+namespace BetterLyrics.WinUI3.Services.MediaSessionsService
+{
+    public partial class MediaSessionsService : IMediaSessionsService
+    {
+        private readonly LatestOnlyTaskRunner _albumArtRefreshRunner = new();
+
+        public event EventHandler<AlbumArtChangedEventArgs>? AlbumArtChanged;
+
+        private void UpdateAlbumArt()
+        {
+            _albumArtRefreshRunner.RunAsync(RefreshArtAlbum);
+        }
+
+        private async Task RefreshArtAlbum(CancellationToken token)
+        {
+            if (_cachedSongInfo == null)
+            {
+                _logger.LogWarning("Cached song info is null, cannot update album art.");
+                return;
+            }
+
+            byte[]? bytes = await _albumArtSearchService.SearchAsync(
+                SongInfo?.SourceAppUserModelId ?? "",
+                _cachedSongInfo.Title,
+                _cachedSongInfo.Artist,
+                _cachedSongInfo?.Album ?? string.Empty,
+                _SMTCAlbumArtBytes
+            );
+            token.ThrowIfCancellationRequested();
+
+            if (bytes == null)
+            {
+                bytes = await ImageHelper.CreateTextPlaceholderBytesAsync(500, 500);
+                token.ThrowIfCancellationRequested();
+            }
+
+            bytes = ImageHelper.MakeSquareWithThemeColor(bytes);
+
+            using var stream = new InMemoryRandomAccessStream();
+            await stream.WriteAsync(bytes.AsBuffer());
+            token.ThrowIfCancellationRequested();
+
+            var decoder = await BitmapDecoder.CreateAsync(stream);
+            token.ThrowIfCancellationRequested();
+
+            var albumArtSwBitmap = await decoder.GetSoftwareBitmapAsync(BitmapPixelFormat.Rgba16, BitmapAlphaMode.Premultiplied);
+            token.ThrowIfCancellationRequested();
+
+            var albumArtLightAccentColor = ImageHelper.GetAccentColorsFromByte(bytes, 1, false).FirstOrDefault();
+            var albumArtDarkAccentColor = ImageHelper.GetAccentColorsFromByte(bytes, 1, true).FirstOrDefault();
+
+            AlbumArtChanged?.Invoke(this, new AlbumArtChangedEventArgs(null, albumArtSwBitmap, albumArtLightAccentColor, albumArtDarkAccentColor));
+        }
+    }
+}

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Services/MediaSessionsService/MediaSessionsService.LyricsUpdater.cs

@@ -0,0 +1,227 @@
+using BetterLyrics.WinUI3.Enums;
+using BetterLyrics.WinUI3.Events;
+using BetterLyrics.WinUI3.Helper;
+using BetterLyrics.WinUI3.Models;
+using CommunityToolkit.Mvvm.ComponentModel;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+using Vanara.PInvoke;
+
+namespace BetterLyrics.WinUI3.Services.MediaSessionsService
+{
+    public partial class MediaSessionsService : IMediaSessionsService
+    {
+        private LatestOnlyTaskRunner _refreshLyricsRunner = new();
+        private LatestOnlyTaskRunner _showTranslationsRunner = new();
+
+        private int _langIndex = 0;
+        private List<LyricsData> _lyricsDataArr = [];
+
+        private LyricsData? CurrentLyricsData => _lyricsDataArr.ElementAtOrDefault(_langIndex);
+
+        public event EventHandler<LyricsChangedEventArgs>? LyricsChanged;
+
+        [ObservableProperty][NotifyPropertyChangedRecipients] public partial LyricsSearchProvider? LyricsSearchProvider { get; set; }
+
+        [ObservableProperty][NotifyPropertyChangedRecipients] public partial TranslationSearchProvider? TranslationSearchProvider { get; set; }
+
+        [ObservableProperty] public partial bool IsTranslating { get; set; } = false;
+
+        private void UpdateTranslations()
+        {
+            TranslationSearchProvider = null;
+            _lyricsDataArr.ElementAtOrDefault(0)?.SetDisplayedTextInOriginalText();
+            LyricsChanged?.Invoke(this, new LyricsChangedEventArgs(CurrentLyricsData));
+            IsTranslating = true;
+
+            if (_settingsService.AppSettings.TranslationSettings.IsTranslationEnabled)
+            {
+                _showTranslationsRunner.RunAsync(async token =>
+                {
+                    await SetDisplayedAlongWithTranslationsAsync(token);
+                    IsTranslating = false;
+                    LyricsChanged?.Invoke(this, new LyricsChangedEventArgs(CurrentLyricsData));
+                });
+            }
+            else
+            {
+                _lyricsDataArr.ElementAtOrDefault(0)?.SetDisplayedTextInOriginalText();
+                _langIndex = 0;
+                IsTranslating = false;
+                LyricsChanged?.Invoke(this, new LyricsChangedEventArgs(CurrentLyricsData));
+            }
+        }
+
+        private async Task SetDisplayedAlongWithTranslationsAsync(CancellationToken token)
+        {
+            _logger.LogInformation("Showing translation for lyrics...");
+            string targetLangCode = LanguageHelper.SupportedTargetLanguages[_settingsService.AppSettings.TranslationSettings.SelectedTargetLanguageIndex].Code;
+            _logger.LogInformation("Target language code: {TargetLangCode}", targetLangCode);
+            string? originalText = _lyricsDataArr.FirstOrDefault()?.WrappedOriginalText;
+            if (originalText == null) return;
+
+            string? originalLangCode = LanguageHelper.DetectLanguageCode(originalText);
+            _logger.LogInformation("Original language code: {OriginalLangCode}", originalLangCode ?? "null");
+
+            if (originalLangCode == targetLangCode)
+            {
+                _logger.LogInformation("Original lyrics already in target language: {TargetLangCode}", targetLangCode);
+
+                _lyricsDataArr[0].SetDisplayedTextInOriginalText();
+            }
+            else
+            {
+                // Try get translation from itself first
+                int found = _translateService.SearchTranslatedLyricsItself(_lyricsDataArr);
+                if (found >= 0)
+                {
+                    _logger.LogInformation("Found translation in lyrics data at index {FoundIndex}", found);
+                    if (_settingsService.AppSettings.TranslationSettings.ShowTranslationOnly)
+                    {
+                        _lyricsDataArr[found].SetDisplayedTextInOriginalText();
+                        _langIndex = found;
+                    }
+                    else
+                    {
+                        _lyricsDataArr[0].SetDisplayedTextAlongWith(_lyricsDataArr[found], _liveStatesService.LiveStates.CurrentLyricsStyleSettings.LyricsTranslationSeparator, 50);
+                        _langIndex = 0;
+                        TranslationSearchProvider = LyricsSearchProvider.ToTranslationSearchProvider();
+                    }
+                }
+                else if (_settingsService.AppSettings.TranslationSettings.IsLibreTranslateEnabled)
+                {
+                    _logger.LogInformation("LibreTranslate is enabled, trying to translate lyrics...");
+                    string translated = string.Empty;
+                    try
+                    {
+                        translated = await _translateService.TranslateTextAsync(originalText, targetLangCode, token);
+                        if (token.IsCancellationRequested) return;
+                        if (translated == string.Empty) return;
+
+                        if (_settingsService.AppSettings.TranslationSettings.ShowTranslationOnly)
+                        {
+                            _lyricsDataArr[^1] = _lyricsDataArr[0].CreateLyricsDataFrom(translated);
+                            _lyricsDataArr[^1].SetDisplayedTextInOriginalText();
+                            _langIndex = _lyricsDataArr.Count - 1;
+                        }
+                        else
+                        {
+                            _lyricsDataArr[0].SetDisplayedTextAlongWith(translated, _liveStatesService.LiveStates.CurrentLyricsStyleSettings.LyricsTranslationSeparator);
+                            _langIndex = 0;
+                        }
+                        TranslationSearchProvider = Enums.TranslationSearchProvider.LibreTranslate;
+                    }
+                    catch (Exception)
+                    {
+                        App.Current.LyricsWindowNotificationPanel?.Notify(App.ResourceLoader?.GetString("LibreTranslateFailed")!, Microsoft.UI.Xaml.Controls.InfoBarSeverity.Error);
+                    }
+                }
+            }
+        }
+
+        private async Task RefreshLyricsAsync(CancellationToken token)
+        {
+            _logger.LogInformation("Refreshing lyrics...");
+
+            LyricsSearchProvider = null;
+            _lyricsDataArr = [LyricsData.GetLoadingPlaceholder()];
+
+            LyricsChanged?.Invoke(this, new LyricsChangedEventArgs(CurrentLyricsData));
+
+            string? lyricsRaw = null;
+            LyricsSearchProvider? lyricsSearchProvider = null;
+            LyricsSearchProvider = lyricsSearchProvider;
+
+            if (SongInfo != null)
+            {
+                _logger.LogInformation("Searching lyrics for: Title={Title}, Artist={Artist}, Album={Album}, DurationMs={DurationMs}",
+                    SongInfo.Title, SongInfo.Artist, SongInfo.Album, SongInfo.DurationMs);
+                (lyricsRaw, lyricsSearchProvider) = await _lyrcsSearchService.SearchAsync(
+                    SongInfo.SourceAppUserModelId ?? "",
+                    SongInfo.Title,
+                    SongInfo.Artist,
+                    SongInfo.Album ?? "",
+                    SongInfo.DurationMs ?? 0,
+                    token
+                );
+                LyricsSearchProvider = lyricsSearchProvider;
+                _logger.LogInformation("Lyrics was found? {Found}, Provider: {LyricsSearchProvider}", lyricsRaw != null, LyricsSearchProvider?.ToString() ?? "null");
+                token.ThrowIfCancellationRequested();
+
+                _lyricsDataArr = new LyricsParser().Parse(lyricsRaw, (int?)SongInfo?.DurationMs);
+                FillTranslationFromCache(LyricsSearchProvider);
+            }
+            else
+            {
+                _logger.LogWarning("SongInfo is null, cannot search lyrics.");
+            }
+
+            _logger.LogInformation("Parsed lyrics: {MultiLangLyricsCount} languages", _lyricsDataArr.Count);
+
+            // This ensures that original lyrics are always shown while waiting for translations
+            _lyricsDataArr[0].SetDisplayedTextInOriginalText();
+            LyricsChanged?.Invoke(this, new LyricsChangedEventArgs(CurrentLyricsData));
+
+            UpdateTranslations();
+        }
+
+        private void FillTranslationFromCache(LyricsSearchProvider? provider)
+        {
+            string? translationRaw = null;
+            switch (provider)
+            {
+                case Enums.LyricsSearchProvider.QQ:
+                    translationRaw = Helper.FileHelper.ReadLyricsCache(SongInfo!.Title, SongInfo.Artist, LyricsFormat.Lrc, Helper.PathHelper.QQTranslationCacheDirectory);
+                    break;
+                case Enums.LyricsSearchProvider.Kugou:
+                    break;
+                case Enums.LyricsSearchProvider.Netease:
+                    translationRaw = Helper.FileHelper.ReadLyricsCache(SongInfo!.Title, SongInfo.Artist, LyricsFormat.Lrc, Helper.PathHelper.NeteaseTranslationCacheDirectory);
+                    break;
+                case Enums.LyricsSearchProvider.LrcLib:
+                    break;
+                case Enums.LyricsSearchProvider.AmllTtmlDb:
+                    break;
+                case Enums.LyricsSearchProvider.LocalMusicFile:
+                    break;
+                case Enums.LyricsSearchProvider.LocalLrcFile:
+                    break;
+                case Enums.LyricsSearchProvider.LocalEslrcFile:
+                    break;
+                case Enums.LyricsSearchProvider.LocalTtmlFile:
+                    break;
+                default:
+                    break;
+            }
+            if (translationRaw != null)
+            {
+                var translationData = new LyricsParser().Parse(translationRaw, (int?)SongInfo?.DurationMs);
+                if (provider == Enums.LyricsSearchProvider.QQ)
+                {
+                    foreach (var data in translationData)
+                    {
+                        foreach (var item in data.LyricsLines)
+                        {
+                            if (item.OriginalText == "//")
+                            {
+                                item.OriginalText = "";
+                            }
+                        }
+                    }
+                }
+
+                _lyricsDataArr = _lyricsDataArr.Concat(translationData).ToList();
+            }
+        }
+
+        private void UpdateLyrics()
+        {
+            _refreshLyricsRunner.RunAsync(RefreshLyricsAsync);
+        }
+    }
+}

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Services/MediaSessionsService/MediaSessionsService.cs

@@ -8,7 +8,11 @@ using BetterLyrics.WinUI3.Models;
 using BetterLyrics.WinUI3.Models.Settings;
 using BetterLyrics.WinUI3.Services.AlbumArtSearchService;
 using BetterLyrics.WinUI3.Services.LastFMService;
+using BetterLyrics.WinUI3.Services.LibWatcherService;
+using BetterLyrics.WinUI3.Services.LiveStatesService;
+using BetterLyrics.WinUI3.Services.LyricsSearchService;
 using BetterLyrics.WinUI3.Services.SettingsService;
+using BetterLyrics.WinUI3.Services.TranslateService;
 using BetterLyrics.WinUI3.ViewModels;
 using BetterLyrics.WinUI3.Views;
 using CommunityToolkit.Mvvm.DependencyInjection;
@@ -36,13 +40,18 @@ using WindowsMediaController;
 namespace BetterLyrics.WinUI3.Services.MediaSessionsService
 {
     public partial class MediaSessionsService : BaseViewModel, IMediaSessionsService,
+        IRecipient<PropertyChangedMessage<int>>,
         IRecipient<PropertyChangedMessage<bool>>,
-        IRecipient<PropertyChangedMessage<List<string>>>,
-        IRecipient<PropertyChangedMessage<FullyObservableCollection<AlbumArtSearchProviderInfo>>>
+        IRecipient<PropertyChangedMessage<string>>,
+        IRecipient<PropertyChangedMessage<List<string>>>
     {
         private readonly IAlbumArtSearchService _albumArtSearchService;
-        private readonly ILogger<MediaSessionsService> _logger;
+        private readonly ILyricsSearchService _lyrcsSearchService;
+        private readonly ITranslateService _translateService;
         private readonly ISettingsService _settingsService;
+        private readonly ILibWatcherService _libWatcherService;
+        private readonly ILiveStatesService _liveStatesService;
+        private readonly ILogger<MediaSessionsService> _logger;
 
         private double _lxMusicPositionSeconds = 0;
         private double _lxMusicDurationSeconds = 0;
@@ -54,28 +63,40 @@ namespace BetterLyrics.WinUI3.Services.MediaSessionsService
 
         private readonly MediaManager _mediaManager = new();
 
-        private readonly BackgroundTaskRunner _albumArtRefreshRunner = new();
-        private readonly BackgroundTaskRunner _onAnyMediaPropertyChangedRunner = new();
-
         private SongInfo? _cachedSongInfo;
         private byte[]? _SMTCAlbumArtBytes = null;
 
         public event EventHandler<IsPlayingChangedEventArgs>? IsPlayingChanged;
         public event EventHandler<TimelineChangedEventArgs>? TimelineChanged;
         public event EventHandler<SongInfoChangedEventArgs>? SongInfoChanged;
-        public event EventHandler<AlbumArtChangedEventArgs>? AlbumArtChangedChanged;
         public event EventHandler<MediaSourceProvidersInfoEventArgs>? MediaSourceProvidersInfoChanged;
 
-        public MediaSessionsService(ISettingsService settingsService, IAlbumArtSearchService albumArtSearchService)
+        public bool IsPlaying => _cachedIsPlaying;
+        public SongInfo? SongInfo => _cachedSongInfo;
+        public TimeSpan Position => _cachedPosition;
+
+        public MediaSessionsService(
+            ISettingsService settingsService,
+            IAlbumArtSearchService albumArtSearchService,
+            ILyricsSearchService musicSearchService,
+            ILibWatcherService libWatcherService,
+            ILiveStatesService liveStatesService,
+            ITranslateService libreTranslateService)
         {
             _settingsService = settingsService;
             _albumArtSearchService = albumArtSearchService;
+            _lyrcsSearchService = musicSearchService;
+            _libWatcherService = libWatcherService;
+            _translateService = libreTranslateService;
+            _liveStatesService = liveStatesService;
             _logger = Ioc.Default.GetRequiredService<ILogger<MediaSessionsService>>();
 
             _settingsService.AppSettings.MediaSourceProvidersInfo.ItemPropertyChanged += MediaSourceProvidersInfo_ItemPropertyChanged;
             _settingsService.AppSettings.LocalMediaFolders.CollectionChanged += LocalMediaFolders_CollectionChanged;
             _settingsService.AppSettings.LocalMediaFolders.ItemPropertyChanged += LocalMediaFolders_ItemPropertyChanged;
 
+            _libWatcherService.MusicLibraryFilesChanged += LibWatcherService_MusicLibraryFilesChanged;
+
             InitMediaManager();
             InitPlaybackShortcuts();
         }
@@ -120,12 +141,14 @@ namespace BetterLyrics.WinUI3.Services.MediaSessionsService
 
         private void LocalMediaFolders_ItemPropertyChanged(object? sender, ItemPropertyChangedEventArgs e)
         {
-            UpdateAlbumArtRelated();
+            UpdateAlbumArt();
+            UpdateLyrics();
         }
 
         private void LocalMediaFolders_CollectionChanged(object? sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
         {
-            UpdateAlbumArtRelated();
+            UpdateAlbumArt();
+            UpdateLyrics();
         }
 
         private void MediaSourceProvidersInfo_ItemPropertyChanged(object? sender, ItemPropertyChangedEventArgs e)
@@ -133,16 +156,21 @@ namespace BetterLyrics.WinUI3.Services.MediaSessionsService
             switch (e.PropertyName)
             {
                 case nameof(MediaSourceProviderInfo.AlbumArtSearchProvidersInfo):
-                    UpdateAlbumArtRelated();
+                    UpdateAlbumArt();
+                    break;
+                case nameof(MediaSourceProviderInfo.LyricsSearchProvidersInfo):
+                    UpdateLyrics();
                     break;
                 default:
                     break;
             }
         }
 
-        public bool IsPlaying => _cachedIsPlaying;
-        public SongInfo? SongInfo => _cachedSongInfo;
-        public TimeSpan Position => _cachedPosition;
+        private void LibWatcherService_MusicLibraryFilesChanged(object? sender, LibChangedEventArgs e)
+        {
+            UpdateAlbumArt();
+            UpdateLyrics();
+        }
 
         private bool IsMediaSourceEnabled(string id)
         {
@@ -159,18 +187,16 @@ namespace BetterLyrics.WinUI3.Services.MediaSessionsService
             _mediaManager.OnAnyTimelinePropertyChanged += MediaManager_OnAnyTimelinePropertyChanged;
 
             _mediaManager.Start();
-            Task.Run(() =>
-            {
-                MediaManager_OnFocusedSessionChanged(null);
-                _mediaManager.CurrentMediaSessions.ToList().ForEach(x => RecordMediaSourceProviderInfo(x.Value));
-            });
+
+            MediaManager_OnFocusedSessionChanged(null);
+            _mediaManager.CurrentMediaSessions.ToList().ForEach(x => RecordMediaSourceProviderInfo(x.Value));
         }
 
         private void MediaManager_OnFocusedSessionChanged(MediaManager.MediaSession? mediaSession)
         {
             if (!_mediaManager.IsStarted) return;
 
-            SendFocusedMessagesAsync().ConfigureAwait(false);
+            SendFocusedMessagesAsync();
         }
 
         private void MediaManager_OnAnyTimelinePropertyChanged(MediaManager.MediaSession mediaSession, GlobalSystemMediaTransportControlsSessionTimelineProperties timelineProperties)
@@ -202,51 +228,51 @@ namespace BetterLyrics.WinUI3.Services.MediaSessionsService
 
         private void MediaManager_OnAnyPlaybackStateChanged(MediaManager.MediaSession mediaSession, GlobalSystemMediaTransportControlsSessionPlaybackInfo playbackInfo)
         {
-            if (!_mediaManager.IsStarted) return;
-            if (mediaSession == null) return;
-
-            var focusedSession = _mediaManager.GetFocusedSession();
-
-            //RecordMediaSourceProviderInfo(mediaSession);
-            if (mediaSession != focusedSession) return;
-
-            if (!IsMediaSourceEnabled(mediaSession.Id))
-            {
-                _cachedIsPlaying = false;
-            }
-            else
-            {
-                _cachedIsPlaying = playbackInfo.PlaybackStatus switch
-                {
-                    GlobalSystemMediaTransportControlsSessionPlaybackStatus.Playing => true,
-                    _ => false,
-                };
-            }
-
             _dispatcherQueue.TryEnqueue(DispatcherQueuePriority.Low, () =>
             {
+                if (!_mediaManager.IsStarted) return;
+                if (mediaSession == null) return;
+
+                var focusedSession = _mediaManager.GetFocusedSession();
+
+                //RecordMediaSourceProviderInfo(mediaSession);
+                if (mediaSession != focusedSession) return;
+
+                if (!IsMediaSourceEnabled(mediaSession.Id))
+                {
+                    _cachedIsPlaying = false;
+                }
+                else
+                {
+                    _cachedIsPlaying = playbackInfo.PlaybackStatus switch
+                    {
+                        GlobalSystemMediaTransportControlsSessionPlaybackStatus.Playing => true,
+                        _ => false,
+                    };
+                }
+
                 IsPlayingChanged?.Invoke(this, new IsPlayingChangedEventArgs(_cachedIsPlaying));
             });
         }
 
         private void MediaManager_OnAnyMediaPropertyChanged(MediaManager.MediaSession mediaSession, GlobalSystemMediaTransportControlsSessionMediaProperties mediaProperties)
         {
-            if (!_mediaManager.IsStarted) return;
-            if (mediaSession == null) return;
-
-            string id = mediaSession.Id;
-
-            var focusedSession = _mediaManager.GetFocusedSession();
-
-            //RecordMediaSourceProviderInfo(mediaSession);
-            if (mediaSession != focusedSession) return;
-
-            if (!IsMediaSourceEnabled(id))
+            _dispatcherQueue.TryEnqueue(DispatcherQueuePriority.Low, async () =>
             {
-                _cachedSongInfo = null;
+                if (!_mediaManager.IsStarted) return;
+                if (mediaSession == null) return;
 
-                _onAnyMediaPropertyChangedRunner.Run(async token =>
+                string id = mediaSession.Id;
+
+                var focusedSession = _mediaManager.GetFocusedSession();
+
+                //RecordMediaSourceProviderInfo(mediaSession);
+                if (mediaSession != focusedSession) return;
+
+                if (!IsMediaSourceEnabled(id))
                 {
+                    _cachedSongInfo = null;
+
                     _logger.LogInformation("Media properties changed: Title: {Title}, Artist: {Artist}, Album: {Album}",
                         mediaProperties.Title, mediaProperties.Artist, mediaProperties.AlbumTitle);
 
@@ -256,42 +282,26 @@ namespace BetterLyrics.WinUI3.Services.MediaSessionsService
                     }
 
                     _SMTCAlbumArtBytes = null;
-
-                    UpdateAlbumArtRelated();
-
-                    if (!token.IsCancellationRequested)
-                    {
-                        _dispatcherQueue.TryEnqueue(DispatcherQueuePriority.Low, () =>
-                        {
-                            SongInfoChanged?.Invoke(this, new SongInfoChangedEventArgs(_cachedSongInfo));
-                        });
-                    }
-                });
-            }
-            else
-            {
-                _dispatcherQueue.TryEnqueue(DispatcherQueuePriority.Low, () =>
+                }
+                else
                 {
                     var currentMediaSourceProviderInfo = GetCurrentMediaSourceProviderInfo();
                     if (currentMediaSourceProviderInfo?.ResetPositionOffsetOnSongChanged == true)
                     {
                         currentMediaSourceProviderInfo?.PositionOffset = 0;
                     }
-                });
 
-                _cachedSongInfo = new SongInfo
-                {
-                    Title = mediaProperties.Title,
-                    Artist = mediaProperties.Artist,
-                    Album = mediaProperties.AlbumTitle,
-                    DurationMs = mediaSession.ControlSession.GetTimelineProperties().EndTime.TotalMilliseconds,
-                    SourceAppUserModelId = id,
-                };
+                    _cachedSongInfo = new SongInfo
+                    {
+                        Title = mediaProperties.Title,
+                        Artist = mediaProperties.Artist,
+                        Album = mediaProperties.AlbumTitle,
+                        DurationMs = mediaSession.ControlSession.GetTimelineProperties().EndTime.TotalMilliseconds,
+                        SourceAppUserModelId = id,
+                    };
 
-                _cachedSongInfo.Duration = (int)(_cachedSongInfo.DurationMs / 1000f);
+                    _cachedSongInfo.Duration = (int)(_cachedSongInfo.DurationMs / 1000f);
 
-                _onAnyMediaPropertyChangedRunner.Run(async token =>
-                {
                     _logger.LogInformation("Media properties changed: Title: {Title}, Artist: {Artist}, Album: {Album}",
                         mediaProperties.Title, mediaProperties.Artist, mediaProperties.AlbumTitle);
 
@@ -312,18 +322,12 @@ namespace BetterLyrics.WinUI3.Services.MediaSessionsService
                     {
                         _SMTCAlbumArtBytes = null;
                     }
+                }
 
-                    UpdateAlbumArtRelated();
-
-                    if (!token.IsCancellationRequested)
-                    {
-                        _dispatcherQueue.TryEnqueue(DispatcherQueuePriority.Low, () =>
-                        {
-                            SongInfoChanged?.Invoke(this, new SongInfoChangedEventArgs(_cachedSongInfo));
-                        });
-                    }
-                });
-            }
+                SongInfoChanged?.Invoke(this, new SongInfoChangedEventArgs(_cachedSongInfo));
+                UpdateAlbumArt();
+                UpdateLyrics();
+            });
         }
 
         private void MediaManager_OnAnySessionClosed(MediaManager.MediaSession mediaSession)
@@ -387,54 +391,6 @@ namespace BetterLyrics.WinUI3.Services.MediaSessionsService
             MediaManager_OnAnyPlaybackStateChanged(focusedSession, focusedSession.ControlSession.GetPlaybackInfo());
         }
 
-        private void UpdateAlbumArtRelated()
-        {
-            _albumArtRefreshRunner.Run(async (token) =>
-            {
-                if (_cachedSongInfo == null)
-                {
-                    _logger.LogWarning("Cached song info is null, cannot update album art.");
-                    return;
-                }
-
-                byte[]? bytes = await _albumArtSearchService.SearchAsync(
-                    SongInfo?.SourceAppUserModelId ?? "",
-                    _cachedSongInfo.Title,
-                    _cachedSongInfo.Artist,
-                    _cachedSongInfo?.Album ?? string.Empty,
-                    _SMTCAlbumArtBytes
-                );
-                token.ThrowIfCancellationRequested();
-
-                if (bytes == null)
-                {
-                    bytes = await ImageHelper.CreateTextPlaceholderBytesAsync(500, 500);
-                    token.ThrowIfCancellationRequested();
-                }
-
-                bytes = ImageHelper.MakeSquareWithThemeColor(bytes);
-
-                using var stream = new InMemoryRandomAccessStream();
-                await stream.WriteAsync(bytes.AsBuffer());
-                token.ThrowIfCancellationRequested();
-
-                var decoder = await BitmapDecoder.CreateAsync(stream);
-                token.ThrowIfCancellationRequested();
-
-                var albumArtSwBitmap = await decoder.GetSoftwareBitmapAsync(BitmapPixelFormat.Rgba8, BitmapAlphaMode.Premultiplied);
-                token.ThrowIfCancellationRequested();
-
-                var albumArtLightAccentColor = ImageHelper.GetAccentColorsFromByte(bytes, 1, false).FirstOrDefault();
-                var albumArtDarkAccentColor = ImageHelper.GetAccentColorsFromByte(bytes, 1, true).FirstOrDefault();
-
-                _dispatcherQueue.TryEnqueue(DispatcherQueuePriority.Low, () =>
-                {
-                    AlbumArtChangedChanged?.Invoke(this, new AlbumArtChangedEventArgs(null, albumArtSwBitmap, albumArtLightAccentColor, albumArtDarkAccentColor));
-                });
-
-            });
-        }
-
         private void StartSSE()
         {
             try
@@ -467,7 +423,7 @@ namespace BetterLyrics.WinUI3.Services.MediaSessionsService
 
         private void Sse_Disconnected(object sender, DisconnectEventArgs e)
         {
-            Task.Run(async () =>
+            _dispatcherQueue.TryEnqueue(DispatcherQueuePriority.Low, async () =>
             {
                 await Task.Delay(e.ReconnectDelay);
                 if (_sse != null && !_sse.IsDisposed) _sse.Start();
@@ -476,25 +432,26 @@ namespace BetterLyrics.WinUI3.Services.MediaSessionsService
 
         private void Sse_MessageReceived(object sender, EventSourceMessageEventArgs e)
         {
-            if (_cachedSongInfo?.SourceAppUserModelId == Constants.PlayerID.LXMusic)
+            _dispatcherQueue.TryEnqueue(DispatcherQueuePriority.Low, () =>
             {
-                var data = JsonSerializer.Deserialize(e.Message, Serialization.SourceGenerationContext.Default.JsonElement);
-                if (data.ValueKind == JsonValueKind.Number)
+                if (_cachedSongInfo?.SourceAppUserModelId == Constants.PlayerID.LXMusic)
                 {
-                    if (e.Event == "progress")
-                    {
-                        _lxMusicPositionSeconds = data.GetDouble();
-                    }
-                    else if (e.Event == "duration")
-                    {
-                        _lxMusicDurationSeconds = data.GetDouble();
-                    }
-                    _dispatcherQueue.TryEnqueue(DispatcherQueuePriority.Low, () =>
+                    var data = JsonSerializer.Deserialize(e.Message, Serialization.SourceGenerationContext.Default.JsonElement);
+                    if (data.ValueKind == JsonValueKind.Number)
                     {
+                        if (e.Event == "progress")
+                        {
+                            _lxMusicPositionSeconds = data.GetDouble();
+                        }
+                        else if (e.Event == "duration")
+                        {
+                            _lxMusicDurationSeconds = data.GetDouble();
+                        }
+
                         TimelineChanged?.Invoke(this, new TimelineChangedEventArgs(TimeSpan.FromSeconds(_lxMusicPositionSeconds), TimeSpan.FromSeconds(_lxMusicDurationSeconds)));
-                    });
+                    }
                 }
-            }
+            });
         }
 
         public async Task PlayAsync()
@@ -556,19 +513,23 @@ namespace BetterLyrics.WinUI3.Services.MediaSessionsService
                     MediaManager_OnFocusedSessionChanged(null);
                 }
             }
-            else if (message.Sender is AlbumArtSearchProviderInfo)
+            else if (message.Sender is TranslationSettings)
             {
-                if (message.PropertyName == nameof(AlbumArtSearchProviderInfo.IsEnabled))
+                if (message.PropertyName == nameof(TranslationSettings.IsLibreTranslateEnabled))
                 {
-                    UpdateAlbumArtRelated();
+                    UpdateTranslations();
+                }
+                else if (message.PropertyName == nameof(TranslationSettings.IsTranslationEnabled))
+                {
+                    UpdateTranslations();
+                }
+                else if (message.PropertyName == nameof(TranslationSettings.ShowTranslationOnly))
+                {
+                    UpdateTranslations();
                 }
             }
         }
 
-        public void Receive(PropertyChangedMessage<FullyObservableCollection<AlbumArtSearchProviderInfo>> message)
-        {
-        }
-
         public void Receive(PropertyChangedMessage<List<string>> message)
         {
             if (message.Sender is GeneralSettings)
@@ -587,5 +548,28 @@ namespace BetterLyrics.WinUI3.Services.MediaSessionsService
                 }
             }
         }
+
+        public void Receive(PropertyChangedMessage<int> message)
+        {
+            if (message.Sender is TranslationSettings)
+            {
+                if (message.PropertyName == nameof(TranslationSettings.SelectedTargetLanguageIndex))
+                {
+                    _logger.LogInformation("Target language index changed: {Index}", _settingsService.AppSettings.TranslationSettings.SelectedTargetLanguageIndex);
+                    UpdateTranslations();
+                }
+            }
+        }
+
+        public void Receive(PropertyChangedMessage<string> message)
+        {
+            if (message.Sender is LyricsStyleSettings)
+            {
+                if (message.PropertyName == nameof(LyricsStyleSettings.LyricsTranslationSeparator))
+                {
+                    UpdateTranslations();
+                }
+            }
+        }
     }
 }

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Services/TranslateService/ITranslateService.cs

@@ -10,7 +10,7 @@ namespace BetterLyrics.WinUI3.Services.TranslateService
 {
     public interface ITranslateService
     {
-        Task<string> TranslateTextAsync(string text, string targetLangCode, CancellationToken? token);
+        Task<string> TranslateTextAsync(string text, string targetLangCode, CancellationToken token);
 
         int SearchTranslatedLyricsItself(List<LyricsData> lyricsDataArr);
     }

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Services/TranslateService/TranslateService.cs

@@ -25,7 +25,7 @@ namespace BetterLyrics.WinUI3.Services.TranslateService
             _httpClient = new HttpClient();
         }
 
-        public async Task<string> TranslateTextAsync(string text, string targetLangCode, CancellationToken? token)
+        public async Task<string> TranslateTextAsync(string text, string targetLangCode, CancellationToken token)
         {
             if (string.IsNullOrWhiteSpace(text))
             {
@@ -49,12 +49,10 @@ namespace BetterLyrics.WinUI3.Services.TranslateService
                 new("q", text),
                 new("source", originalLangCode),
                 new("target", targetLangCode),
-            ]));
-            token?.ThrowIfCancellationRequested();
+            ]), token);
 
             response.EnsureSuccessStatusCode();
-            var json = await response.Content.ReadAsStringAsync();
-            token?.ThrowIfCancellationRequested();
+            var json = await response.Content.ReadAsStringAsync(token);
 
             var result = System.Text.Json.JsonSerializer.Deserialize(json, SourceGenerationContext.Default.TranslateResponse);
             return result?.TranslatedText ?? string.Empty;

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Strings/en-US/Resources.resw

@@ -150,9 +150,6 @@
   <data name="BaseWindowMiniFlyoutItem.Text" xml:space="preserve">
     <value>Picture-in-picture mode</value>
   </data>
-  <data name="BaseWindowUnMiniFlyoutItem.Text" xml:space="preserve">
-    <value>Exit picture-in-picture mode</value>
-  </data>
   <data name="Cancel" xml:space="preserve">
     <value>Cancel</value>
   </data>
@@ -478,6 +475,9 @@ If you encounter any problems, please go to the Settings page, About tab, and vi
   <data name="SettingsPageAutoStartInAppLyrics.Content" xml:space="preserve">
     <value>Activate standard mode</value>
   </data>
+  <data name="SettingsPageAutoStartPIPLyrics.Content" xml:space="preserve">
+    <value>Start Picture-in-Picture Mode</value>
+  </data>
   <data name="SettingsPageAutoStartWindow.Header" xml:space="preserve">
     <value>When starting the app</value>
   </data>
@@ -779,7 +779,7 @@ If you encounter any problems, please go to the Settings page, About tab, and vi
     <value>Glow effect</value>
   </data>
   <data name="SettingsPageLyricsHighlightScope.Header" xml:space="preserve">
-    <value>Highlight scope</value>
+    <value>Original highlight range</value>
   </data>
   <data name="SettingsPageLyricsLeft.Content" xml:space="preserve">
     <value>Left</value>
@@ -844,6 +844,9 @@ If you encounter any problems, please go to the Settings page, About tab, and vi
   <data name="SettingsPageLyricsTimelineThreshold.Header" xml:space="preserve">
     <value>Lyrics timeline sync threshold</value>
   </data>
+  <data name="SettingsPageLyricsTranslationHighlight.Header" xml:space="preserve">
+    <value>Translation Highlight</value>
+  </data>
   <data name="SettingsPageLyricsTranslationSeparator.Header" xml:space="preserve">
     <value>Source and translation separator</value>
   </data>
@@ -934,17 +937,23 @@ If you encounter any problems, please go to the Settings page, About tab, and vi
   <data name="SettingsPageScope.Header" xml:space="preserve">
     <value>Scope</value>
   </data>
+  <data name="SettingsPageScrollBottomDelay.Header" xml:space="preserve">
+    <value>Tail line delay</value>
+  </data>
   <data name="SettingsPageScrollBottomDuration.Header" xml:space="preserve">
-    <value>Lyrics scrolling animation duration (Last line)</value>
+    <value>Final line duration</value>
   </data>
   <data name="SettingsPageScrollDuration.Header" xml:space="preserve">
-    <value>Lyrics scrolling animation duration (Current line)</value>
+    <value>Current line duration</value>
   </data>
   <data name="SettingsPageScrollEasing.Header" xml:space="preserve">
     <value>Lyrics scrolling animation type</value>
   </data>
+  <data name="SettingsPageScrollTopDelay.Header" xml:space="preserve">
+    <value>First line delay</value>
+  </data>
   <data name="SettingsPageScrollTopDuration.Header" xml:space="preserve">
-    <value>Lyrics scrolling animation duration (First line)</value>
+    <value>The duration of the first line</value>
   </data>
   <data name="SettingsPageServerTestButton.Content" xml:space="preserve">
     <value>Test server</value>
@@ -958,6 +967,12 @@ If you encounter any problems, please go to the Settings page, About tab, and vi
   <data name="SettingsPageSettingsManager.Header" xml:space="preserve">
     <value>Settings manager</value>
   </data>
+  <data name="SettingsPageShortcutRegFailInfo" xml:space="preserve">
+    <value>This hotkey was not successfully registered</value>
+  </data>
+  <data name="SettingsPageShortcutRegSuccessInfo" xml:space="preserve">
+    <value>This hotkey has been successfully registered</value>
+  </data>
   <data name="SettingsPageSliderPrefix.Text" xml:space="preserve">
     <value>Current value: </value>
   </data>

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Strings/ja-JP/Resources.resw

@@ -150,9 +150,6 @@
   <data name="BaseWindowMiniFlyoutItem.Text" xml:space="preserve">
     <value>ピクチャーインピクチャーモード</value>
   </data>
-  <data name="BaseWindowUnMiniFlyoutItem.Text" xml:space="preserve">
-    <value>ピクチャーインピクチャーモードを終了します</value>
-  </data>
   <data name="Cancel" xml:space="preserve">
     <value>キャンセル</value>
   </data>
@@ -478,6 +475,9 @@
   <data name="SettingsPageAutoStartInAppLyrics.Content" xml:space="preserve">
     <value>標準モードをアクティブにします</value>
   </data>
+  <data name="SettingsPageAutoStartPIPLyrics.Content" xml:space="preserve">
+    <value>ピクチャーインピクチャーモードを開始します</value>
+  </data>
   <data name="SettingsPageAutoStartWindow.Header" xml:space="preserve">
     <value>アプリを起動するとき</value>
   </data>
@@ -779,7 +779,7 @@
     <value>グロー効果</value>
   </data>
   <data name="SettingsPageLyricsHighlightScope.Header" xml:space="preserve">
-    <value>ハイライトスコープ</value>
+    <value>オリジナルのハイライト範囲</value>
   </data>
   <data name="SettingsPageLyricsLeft.Content" xml:space="preserve">
     <value>左</value>
@@ -844,6 +844,9 @@
   <data name="SettingsPageLyricsTimelineThreshold.Header" xml:space="preserve">
     <value>歌詞タイムライン同期しきい値</value>
   </data>
+  <data name="SettingsPageLyricsTranslationHighlight.Header" xml:space="preserve">
+    <value>翻訳ハイライト</value>
+  </data>
   <data name="SettingsPageLyricsTranslationSeparator.Header" xml:space="preserve">
     <value>ソースおよび翻訳セパレーター</value>
   </data>
@@ -934,17 +937,23 @@
   <data name="SettingsPageScope.Header" xml:space="preserve">
     <value>範囲</value>
   </data>
+  <data name="SettingsPageScrollBottomDelay.Header" xml:space="preserve">
+    <value>テールラインの遅延</value>
+  </data>
   <data name="SettingsPageScrollBottomDuration.Header" xml:space="preserve">
-    <value>歌詞スクロールアニメーション期間（最終行）</value>
+    <value>最終ライン期間</value>
   </data>
   <data name="SettingsPageScrollDuration.Header" xml:space="preserve">
-    <value>歌詞スクロールアニメーション期間（現在の行）</value>
+    <value>現在のライン期間</value>
   </data>
   <data name="SettingsPageScrollEasing.Header" xml:space="preserve">
     <value>歌詞スクロールアニメーションタイプ</value>
   </data>
+  <data name="SettingsPageScrollTopDelay.Header" xml:space="preserve">
+    <value>最初の行の遅延</value>
+  </data>
   <data name="SettingsPageScrollTopDuration.Header" xml:space="preserve">
-    <value>歌詞スクロールアニメーション期間（最初の行）</value>
+    <value>最初の行の期間</value>
   </data>
   <data name="SettingsPageServerTestButton.Content" xml:space="preserve">
     <value>テストサーバー</value>
@@ -958,6 +967,12 @@
   <data name="SettingsPageSettingsManager.Header" xml:space="preserve">
     <value>設定マネージャー</value>
   </data>
+  <data name="SettingsPageShortcutRegFailInfo" xml:space="preserve">
+    <value>このホットキーは正常に登録されていません</value>
+  </data>
+  <data name="SettingsPageShortcutRegSuccessInfo" xml:space="preserve">
+    <value>このホットキーは正常に登録されています</value>
+  </data>
   <data name="SettingsPageSliderPrefix.Text" xml:space="preserve">
     <value>現在の値： </value>
   </data>

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Strings/ko-KR/Resources.resw

@@ -150,9 +150,6 @@
   <data name="BaseWindowMiniFlyoutItem.Text" xml:space="preserve">
     <value>사진 인당 모드</value>
   </data>
-  <data name="BaseWindowUnMiniFlyoutItem.Text" xml:space="preserve">
-    <value>Picture-in-Picture 모드 종료</value>
-  </data>
   <data name="Cancel" xml:space="preserve">
     <value>취소</value>
   </data>
@@ -478,6 +475,9 @@
   <data name="SettingsPageAutoStartInAppLyrics.Content" xml:space="preserve">
     <value>표준 모드를 ​​활성화합니다</value>
   </data>
+  <data name="SettingsPageAutoStartPIPLyrics.Content" xml:space="preserve">
+    <value>Picture-in-Picture 모드를 시작하십시오</value>
+  </data>
   <data name="SettingsPageAutoStartWindow.Header" xml:space="preserve">
     <value>앱을 시작할 때</value>
   </data>
@@ -779,7 +779,7 @@
     <value>글로우 효과</value>
   </data>
   <data name="SettingsPageLyricsHighlightScope.Header" xml:space="preserve">
-    <value>하이라이트 범위</value>
+    <value>원래 하이라이트 범위</value>
   </data>
   <data name="SettingsPageLyricsLeft.Content" xml:space="preserve">
     <value>왼쪽</value>
@@ -844,6 +844,9 @@
   <data name="SettingsPageLyricsTimelineThreshold.Header" xml:space="preserve">
     <value>가사 타임 라인 동기화 임계 값</value>
   </data>
+  <data name="SettingsPageLyricsTranslationHighlight.Header" xml:space="preserve">
+    <value>번역 하이라이트</value>
+  </data>
   <data name="SettingsPageLyricsTranslationSeparator.Header" xml:space="preserve">
     <value>소스 및 번역 분리기</value>
   </data>
@@ -934,17 +937,23 @@
   <data name="SettingsPageScope.Header" xml:space="preserve">
     <value>범위</value>
   </data>
+  <data name="SettingsPageScrollBottomDelay.Header" xml:space="preserve">
+    <value>테일 라인 지연</value>
+  </data>
   <data name="SettingsPageScrollBottomDuration.Header" xml:space="preserve">
-    <value>가사 스크롤 애니메이션 지속 시간 (마지막 줄)</value>
+    <value>최종 라인 기간</value>
   </data>
   <data name="SettingsPageScrollDuration.Header" xml:space="preserve">
-    <value>가사 스크롤 애니메이션 지속 시간 (현재 줄)</value>
+    <value>현재 라인 기간</value>
   </data>
   <data name="SettingsPageScrollEasing.Header" xml:space="preserve">
     <value>가사 스크롤링 애니메이션 유형</value>
   </data>
+  <data name="SettingsPageScrollTopDelay.Header" xml:space="preserve">
+    <value>첫 번째 줄 지연</value>
+  </data>
   <data name="SettingsPageScrollTopDuration.Header" xml:space="preserve">
-    <value>가사 스크롤 애니메이션 지속 시간 (첫 번째 줄)</value>
+    <value>첫 번째 줄의 기간</value>
   </data>
   <data name="SettingsPageServerTestButton.Content" xml:space="preserve">
     <value>테스트 서버</value>
@@ -958,6 +967,12 @@
   <data name="SettingsPageSettingsManager.Header" xml:space="preserve">
     <value>설정 관리자</value>
   </data>
+  <data name="SettingsPageShortcutRegFailInfo" xml:space="preserve">
+    <value>이 핫키는 성공적으로 등록되지 않았습니다</value>
+  </data>
+  <data name="SettingsPageShortcutRegSuccessInfo" xml:space="preserve">
+    <value>이 핫키는 성공적으로 등록되었습니다</value>
+  </data>
   <data name="SettingsPageSliderPrefix.Text" xml:space="preserve">
     <value>현재 가치 : </value>
   </data>

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Strings/zh-CN/Resources.resw

@@ -150,9 +150,6 @@
   <data name="BaseWindowMiniFlyoutItem.Text" xml:space="preserve">
     <value>画中画模式</value>
   </data>
-  <data name="BaseWindowUnMiniFlyoutItem.Text" xml:space="preserve">
-    <value>退出画中画模式</value>
-  </data>
   <data name="Cancel" xml:space="preserve">
     <value>取消</value>
   </data>
@@ -478,6 +475,9 @@
   <data name="SettingsPageAutoStartInAppLyrics.Content" xml:space="preserve">
     <value>启动标准模式</value>
   </data>
+  <data name="SettingsPageAutoStartPIPLyrics.Content" xml:space="preserve">
+    <value>启动画中画模式</value>
+  </data>
   <data name="SettingsPageAutoStartWindow.Header" xml:space="preserve">
     <value>启动应用时</value>
   </data>
@@ -779,7 +779,7 @@
     <value>辉光效果</value>
   </data>
   <data name="SettingsPageLyricsHighlightScope.Header" xml:space="preserve">
-    <value>高亮显示范围</value>
+    <value>原文高亮显示范围</value>
   </data>
   <data name="SettingsPageLyricsLeft.Content" xml:space="preserve">
     <value>靠左</value>
@@ -844,6 +844,9 @@
   <data name="SettingsPageLyricsTimelineThreshold.Header" xml:space="preserve">
     <value>歌词时间轴同步阈值</value>
   </data>
+  <data name="SettingsPageLyricsTranslationHighlight.Header" xml:space="preserve">
+    <value>翻译高亮</value>
+  </data>
   <data name="SettingsPageLyricsTranslationSeparator.Header" xml:space="preserve">
     <value>原文译文分隔符</value>
   </data>
@@ -934,17 +937,23 @@
   <data name="SettingsPageScope.Header" xml:space="preserve">
     <value>范围</value>
   </data>
+  <data name="SettingsPageScrollBottomDelay.Header" xml:space="preserve">
+    <value>尾行延时</value>
+  </data>
   <data name="SettingsPageScrollBottomDuration.Header" xml:space="preserve">
-    <value>歌词滚动动画持续时间（最后一行）</value>
+    <value>尾行持续时间</value>
   </data>
   <data name="SettingsPageScrollDuration.Header" xml:space="preserve">
-    <value>歌词滚动动画持续时间（当前行）</value>
+    <value>当前行持续时间</value>
   </data>
   <data name="SettingsPageScrollEasing.Header" xml:space="preserve">
     <value>歌词滚动动画类型</value>
   </data>
+  <data name="SettingsPageScrollTopDelay.Header" xml:space="preserve">
+    <value>首行延时</value>
+  </data>
   <data name="SettingsPageScrollTopDuration.Header" xml:space="preserve">
-    <value>歌词滚动动画持续时间（第一行）</value>
+    <value>首行持续时间</value>
   </data>
   <data name="SettingsPageServerTestButton.Content" xml:space="preserve">
     <value>测试服务器</value>
@@ -958,6 +967,12 @@
   <data name="SettingsPageSettingsManager.Header" xml:space="preserve">
     <value>设置管理器</value>
   </data>
+  <data name="SettingsPageShortcutRegFailInfo" xml:space="preserve">
+    <value>该热键未成功注册</value>
+  </data>
+  <data name="SettingsPageShortcutRegSuccessInfo" xml:space="preserve">
+    <value>该热键已成功注册</value>
+  </data>
   <data name="SettingsPageSliderPrefix.Text" xml:space="preserve">
     <value>当前值： </value>
   </data>

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Strings/zh-TW/Resources.resw

@@ -150,9 +150,6 @@
   <data name="BaseWindowMiniFlyoutItem.Text" xml:space="preserve">
     <value>畫中畫模式</value>
   </data>
-  <data name="BaseWindowUnMiniFlyoutItem.Text" xml:space="preserve">
-    <value>退出畫中畫模式</value>
-  </data>
   <data name="Cancel" xml:space="preserve">
     <value>取消</value>
   </data>
@@ -478,6 +475,9 @@
   <data name="SettingsPageAutoStartInAppLyrics.Content" xml:space="preserve">
     <value>啟動標準模式</value>
   </data>
+  <data name="SettingsPageAutoStartPIPLyrics.Content" xml:space="preserve">
+    <value>啟動畫中畫模式</value>
+  </data>
   <data name="SettingsPageAutoStartWindow.Header" xml:space="preserve">
     <value>啟動應用程式時</value>
   </data>
@@ -779,7 +779,7 @@
     <value>輝光效果</value>
   </data>
   <data name="SettingsPageLyricsHighlightScope.Header" xml:space="preserve">
-    <value>高亮顯示範圍</value>
+    <value>原文高亮顯示範圍</value>
   </data>
   <data name="SettingsPageLyricsLeft.Content" xml:space="preserve">
     <value>靠左</value>
@@ -844,6 +844,9 @@
   <data name="SettingsPageLyricsTimelineThreshold.Header" xml:space="preserve">
     <value>歌詞時間軌同步閾值</value>
   </data>
+  <data name="SettingsPageLyricsTranslationHighlight.Header" xml:space="preserve">
+    <value>翻譯高亮</value>
+  </data>
   <data name="SettingsPageLyricsTranslationSeparator.Header" xml:space="preserve">
     <value>原文譯文分隔符</value>
   </data>
@@ -934,17 +937,23 @@
   <data name="SettingsPageScope.Header" xml:space="preserve">
     <value>範圍</value>
   </data>
+  <data name="SettingsPageScrollBottomDelay.Header" xml:space="preserve">
+    <value>尾行延時</value>
+  </data>
   <data name="SettingsPageScrollBottomDuration.Header" xml:space="preserve">
-    <value>歌詞滾動動畫持續時間（最後一行）</value>
+    <value>尾行持續時間</value>
   </data>
   <data name="SettingsPageScrollDuration.Header" xml:space="preserve">
-    <value>歌詞滾動動畫持續時間（當前行）</value>
+    <value>當前行持續時間</value>
   </data>
   <data name="SettingsPageScrollEasing.Header" xml:space="preserve">
     <value>歌詞滾動動畫類型</value>
   </data>
+  <data name="SettingsPageScrollTopDelay.Header" xml:space="preserve">
+    <value>首行延時</value>
+  </data>
   <data name="SettingsPageScrollTopDuration.Header" xml:space="preserve">
-    <value>歌詞滾動動畫持續時間（第一行）</value>
+    <value>首行持續時間</value>
   </data>
   <data name="SettingsPageServerTestButton.Content" xml:space="preserve">
     <value>測試服務器</value>
@@ -958,6 +967,12 @@
   <data name="SettingsPageSettingsManager.Header" xml:space="preserve">
     <value>設置管理器</value>
   </data>
+  <data name="SettingsPageShortcutRegFailInfo" xml:space="preserve">
+    <value>該熱鍵未成功註冊</value>
+  </data>
+  <data name="SettingsPageShortcutRegSuccessInfo" xml:space="preserve">
+    <value>該熱鍵已成功註冊</value>
+  </data>
   <data name="SettingsPageSliderPrefix.Text" xml:space="preserve">
     <value>目前值： </value>
   </data>

BetterLyrics.WinUI3/BetterLyrics.WinUI3/ViewModels/LyricsRendererViewModel/LyricsRendererViewModel.Ctor.cs

@@ -1,99 +0,0 @@
-using BetterLyrics.WinUI3.Enums;
-using BetterLyrics.WinUI3.Models;
-using BetterLyrics.WinUI3.Models.Settings;
-using BetterLyrics.WinUI3.Services.LastFMService;
-using BetterLyrics.WinUI3.Services.LibWatcherService;
-using BetterLyrics.WinUI3.Services.LiveStatesService;
-using BetterLyrics.WinUI3.Services.LyricsSearchService;
-using BetterLyrics.WinUI3.Services.MediaSessionsService;
-using BetterLyrics.WinUI3.Services.SettingsService;
-using BetterLyrics.WinUI3.Services.TranslateService;
-using CommunityToolkit.Mvvm.DependencyInjection;
-using Microsoft.Extensions.Logging;
-using System;
-using System.Diagnostics;
-
-namespace BetterLyrics.WinUI3.ViewModels.LyricsRendererViewModel
-{
-    public partial class LyricsRendererViewModel
-    {
-        public LyricsRendererViewModel(
-            ISettingsService settingsService,
-            IMediaSessionsService mediaSessionsService,
-            ILyricsSearchService musicSearchService,
-            ILibWatcherService libWatcherService,
-            ITranslateService libreTranslateService,
-            ILastFMService lastFMService,
-            ILiveStatesService liveStatesService
-            )
-        {
-            _settingsService = settingsService;
-            _lyrcsSearchService = musicSearchService;
-            _mediaSessionsService = mediaSessionsService;
-            _libWatcherService = libWatcherService;
-            _translateService = libreTranslateService;
-            _liveStatesService = liveStatesService;
-
-            _lastFMService = lastFMService;
-
-            _logger = Ioc.Default.GetRequiredService<ILogger<LyricsRendererViewModel>>();
-
-            AppSettings = _settingsService.AppSettings;
-
-            _settingsService.AppSettings.MediaSourceProvidersInfo.ItemPropertyChanged += MediaSourceProvidersInfo_ItemPropertyChanged;
-            _settingsService.AppSettings.LocalMediaFolders.CollectionChanged += LocalMediaFolders_CollectionChanged;
-            _settingsService.AppSettings.LocalMediaFolders.ItemPropertyChanged += LocalMediaFolders_ItemPropertyChanged;
-
-            _titleTextFormat.HorizontalAlignment = _artistTextFormat.HorizontalAlignment = _settingsService.AppSettings.AlbumArtLayoutSettings.SongInfoAlignmentType.ToCanvasHorizontalAlignment();
-
-            _timelineSyncThreshold = 0;
-
-            _libWatcherService.MusicLibraryFilesChanged += LibWatcherService_MusicLibraryFilesChanged;
-
-            _mediaSessionsService.IsPlayingChanged += PlaybackService_IsPlayingChanged;
-            _mediaSessionsService.SongInfoChanged += PlaybackService_SongInfoChanged;
-            _mediaSessionsService.AlbumArtChangedChanged += PlaybackService_AlbumArtChangedChanged;
-            _mediaSessionsService.TimelineChanged += PlaybackService_TimelineChanged;
-
-            IsPlaying = _mediaSessionsService.IsPlaying;
-
-            UpdateColorConfig();
-        }
-
-        private void LocalMediaFolders_ItemPropertyChanged(object? sender, Extensions.ItemPropertyChangedEventArgs e)
-        {
-            // Music lib changed, re-fetch lyrics
-            _logger.LogInformation("Local lyrics folders changed, refreshing lyrics.");
-            _refreshLyricsRunner.Run(async tokne =>
-            {
-                await RefreshLyricsAsync(tokne);
-            });
-        }
-
-        private void LocalMediaFolders_CollectionChanged(object? sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
-        {
-            // Music lib changed, re-fetch lyrics
-            _logger.LogInformation("Local lyrics folders changed, refreshing lyrics.");
-            _refreshLyricsRunner.Run(async tokne =>
-            {
-                await RefreshLyricsAsync(tokne);
-            });
-        }
-
-        private void MediaSourceProvidersInfo_ItemPropertyChanged(object? sender, Extensions.ItemPropertyChangedEventArgs e)
-        {
-            switch (e.PropertyName)
-            {
-                case nameof(MediaSourceProviderInfo.LyricsSearchProvidersInfo):
-                    _logger.LogInformation("MediaSourceProviderInfo.LyricsSearchProvidersInfo changed, refreshing lyrics.");
-                    _refreshLyricsRunner.Run(async token =>
-                    {
-                        await RefreshLyricsAsync(token);
-                    });
-                    break;
-                default:
-                    break;
-            }
-        }
-    }
-}

BetterLyrics.WinUI3/BetterLyrics.WinUI3/ViewModels/LyricsRendererViewModel/LyricsRendererViewModel.Draw.cs

@@ -63,9 +63,7 @@ namespace BetterLyrics.WinUI3.ViewModels.LyricsRendererViewModel
             {
                 _drawFrameCount++;
 
-                var currentPlayingLine = _lyricsDataArr
-                    .ElementAtOrDefault(_langIndex)
-                    ?.LyricsLines.ElementAtOrDefault(_playingLineIndex);
+                var currentPlayingLine = _currentLyricsData?.LyricsLines.ElementAtOrDefault(_playingLineIndex);
 
                 if (currentPlayingLine != null)
                 {
@@ -87,7 +85,6 @@ namespace BetterLyrics.WinUI3.ViewModels.LyricsRendererViewModel
                             $"Visible lines: [{_startVisibleLineIndex}, {_endVisibleLineIndex}]\n" +
                             $"Total line count: {GetMaxLyricsLineIndexBoundaries().Item2 + 1}\n" +
                             $"Cur time: {TotalTime + _positionOffset}\n" +
-                            $"Lang size: {_lyricsDataArr.Count}\n" +
                             $"Song duration: {TimeSpan.FromMilliseconds(SongInfo?.DurationMs ?? 0)}\n" +
                             $"Y offset: {_canvasYScrollTransition.Value}",
                         new Vector2(10, 40),
@@ -206,9 +203,7 @@ namespace BetterLyrics.WinUI3.ViewModels.LyricsRendererViewModel
 
         private void DrawBlurredLyrics(ICanvasAnimatedControl control, CanvasDrawingSession ds)
         {
-            var currentPlayingLine = _lyricsDataArr
-                .ElementAtOrDefault(_langIndex)
-                ?.LyricsLines.ElementAtOrDefault(_playingLineIndex);
+            var currentPlayingLine = _currentLyricsData?.LyricsLines.ElementAtOrDefault(_playingLineIndex);
 
             if (currentPlayingLine == null)
             {
@@ -217,7 +212,7 @@ namespace BetterLyrics.WinUI3.ViewModels.LyricsRendererViewModel
 
             for (int i = _startVisibleLineIndex; i <= _endVisibleLineIndex; i++)
             {
-                var line = _lyricsDataArr.ElementAtOrDefault(_langIndex)?.LyricsLines.ElementAtOrDefault(i);
+                var line = _currentLyricsData?.LyricsLines.ElementAtOrDefault(i);
                 if (line == null) continue;
 
                 var textLayout = line.CanvasTextLayout;
@@ -239,10 +234,8 @@ namespace BetterLyrics.WinUI3.ViewModels.LyricsRendererViewModel
                 using var combined = new CanvasCommandList(control);
                 using var combinedDs = combined.CreateDrawingSession();
 
-                // Mock gradient blurred lyrics layer
                 // 先铺一层带默认透明度的已经加了模糊效果的歌词作为最底层（背景歌词层次）
-                // Current line will not be blurred
-                using var backgroundFontEffect = CanvasHelper.CreateFontEffect(line, control, _strokeFontColor, 
+                using var backgroundFontEffect = CanvasHelper.CreateFontEffect(line, control, _strokeFontColor,
                     _liveStatesService.LiveStates.CurrentLyricsStyleSettings.LyricsFontStrokeWidth, _bgFontColor);
                 using var backgroundEffect = CanvasHelper.CreateBackgroundEffect(line, backgroundFontEffect, _lyricsOpacityTransition.Value);
                 combinedDs.DrawImage(backgroundEffect);
@@ -257,16 +250,23 @@ namespace BetterLyrics.WinUI3.ViewModels.LyricsRendererViewModel
                         _liveStatesService.LiveStates.CurrentLyricsEffectSettings.IsLyricsLineFadeEnabled);
                     using var lineMask = CanvasHelper.CreateLineMask(control, line);
 
-                    using var foregroundFontEffect = CanvasHelper.CreateFontEffect(line, control, _strokeFontColor, 
-                        _liveStatesService.LiveStates.CurrentLyricsStyleSettings.LyricsFontStrokeWidth, _bgFontColor);
+                    using var foregroundFontEffect = CanvasHelper.CreateFontEffect(line, control, _strokeFontColor,
+                        _liveStatesService.LiveStates.CurrentLyricsStyleSettings.LyricsFontStrokeWidth, _fgFontColor);
 
                     using var effectLayer = new CanvasCommandList(control);
                     using var effectLayerDs = effectLayer.CreateDrawingSession();
+                    if (line.OriginalText != line.DisplayedText && _liveStatesService.LiveStates.CurrentLyricsEffectSettings.LyricsTranslationHighlightAmount != 0)
+                    {
+                        using var translationHighlightMask = CanvasHelper.CreateTranslationHighlightMask(control, line);
+                        using var foregroundTranslationHighlightEffect = CanvasHelper.CreateForegroundHighlightEffect(foregroundFontEffect, translationHighlightMask,
+                            _liveStatesService.LiveStates.CurrentLyricsEffectSettings.LyricsTranslationHighlightAmount / 100.0);
+                        effectLayerDs.DrawImage(foregroundTranslationHighlightEffect);
+                    }
                     if (_liveStatesService.LiveStates.CurrentLyricsEffectSettings.IsLyricsShadowEnabled)
                     {
-                        var shadowEffectMask = CanvasHelper.GetAlphaMask(control, charMask, lineStartToCharMask, lineMask, 
+                        var shadowEffectMask = CanvasHelper.GetAlphaMask(control, charMask, lineStartToCharMask, lineMask,
                             _liveStatesService.LiveStates.CurrentLyricsEffectSettings.LyricsShadowScope);
-                        using var foregroundShadowEffect = CanvasHelper.CreateForegroundShadowEffect(foregroundFontEffect, shadowEffectMask, 
+                        using var foregroundShadowEffect = CanvasHelper.CreateForegroundShadowEffect(foregroundFontEffect, shadowEffectMask,
                             _albumArtAccentColorTransition.Value, _liveStatesService.LiveStates.CurrentLyricsEffectSettings.LyricsShadowAmount);
                         effectLayerDs.DrawImage(foregroundShadowEffect);
                     }
@@ -278,10 +278,14 @@ namespace BetterLyrics.WinUI3.ViewModels.LyricsRendererViewModel
                             _liveStatesService.LiveStates.CurrentLyricsEffectSettings.LyricsGlowEffectAmount);
                         effectLayerDs.DrawImage(foregroundBlurEffect);
                     }
-                    var highlightEffectMask = CanvasHelper.GetAlphaMask(control, charMask, lineStartToCharMask, lineMask,
-                        _liveStatesService.LiveStates.CurrentLyricsEffectSettings.LyricsHighlightScope);
-                    using var foregroundHighlightEffect = CanvasHelper.CreateForegroundHighlightEffect(foregroundFontEffect, highlightEffectMask);
-                    effectLayerDs.DrawImage(foregroundHighlightEffect);
+                    if (_liveStatesService.LiveStates.CurrentLyricsEffectSettings.LyricsHighlightAmount != 0)
+                    {
+                        var highlightEffectMask = CanvasHelper.GetAlphaMask(control, charMask, lineStartToCharMask, lineMask,
+                            _liveStatesService.LiveStates.CurrentLyricsEffectSettings.LyricsHighlightScope);
+                        using var foregroundHighlightEffect = CanvasHelper.CreateForegroundHighlightEffect(foregroundFontEffect, highlightEffectMask,
+                            _liveStatesService.LiveStates.CurrentLyricsEffectSettings.LyricsHighlightAmount / 100.0);
+                        effectLayerDs.DrawImage(foregroundHighlightEffect);
+                    }
 
                     combinedDs.DrawImage(new OpacityEffect
                     {

BetterLyrics.WinUI3/BetterLyrics.WinUI3/ViewModels/LyricsRendererViewModel/LyricsRendererViewModel.Messages.cs

@@ -53,22 +53,6 @@ namespace BetterLyrics.WinUI3.ViewModels.LyricsRendererViewModel
                 {
                 }
             }
-            else if (message.Sender is TranslationSettings)
-            {
-                if (message.PropertyName == nameof(TranslationSettings.IsLibreTranslateEnabled))
-                {
-                    UpdateTranslations();
-                }
-                else if (message.PropertyName == nameof(TranslationSettings.IsTranslationEnabled))
-                {
-                    _logger.LogInformation("Translation enabled state changed: {IsEnabled}", _settingsService.AppSettings.TranslationSettings.IsTranslationEnabled);
-                    UpdateTranslations();
-                }
-                else if (message.PropertyName == nameof(TranslationSettings.ShowTranslationOnly))
-                {
-                    UpdateTranslations();
-                }
-            }
             else if (message.Sender is LyricsWindowViewModel)
             {
                 if (message.PropertyName == nameof(LyricsWindowViewModel.IsLyricsWindowLocked))
@@ -89,18 +73,6 @@ namespace BetterLyrics.WinUI3.ViewModels.LyricsRendererViewModel
                     UpdateIsLastFMTrackEnabled();
                 }
             }
-            if (message.Sender is LyricsSearchProviderInfo)
-            {
-                if (message.PropertyName == nameof(LyricsSearchProviderInfo.IsEnabled))
-                {
-                    _logger.LogInformation("LyricsSearchProviderInfo.IsEnabled changed, refreshing lyrics.");
-                    _refreshLyricsRunner.Run(async token =>
-                    {
-                        await RefreshLyricsAsync(token);
-                    });
-                }
-            }
-
         }
 
         public void Receive(PropertyChangedMessage<Color> message)
@@ -195,6 +167,14 @@ namespace BetterLyrics.WinUI3.ViewModels.LyricsRendererViewModel
                 {
                     _isLayoutChanged = true;
                 }
+                else if (message.PropertyName == nameof(LyricsEffectSettings.LyricsScrollTopDelay))
+                {
+                    _isLayoutChanged = true;
+                }
+                else if (message.PropertyName == nameof(LyricsEffectSettings.LyricsScrollBottomDelay))
+                {
+                    _isLayoutChanged = true;
+                }
             }
             else if (message.Sender is LyricsStyleSettings)
             {
@@ -211,14 +191,6 @@ namespace BetterLyrics.WinUI3.ViewModels.LyricsRendererViewModel
                     _isLayoutChanged = true;
                 }
             }
-            else if (message.Sender is TranslationSettings)
-            {
-                if (message.PropertyName == nameof(TranslationSettings.SelectedTargetLanguageIndex))
-                {
-                    _logger.LogInformation("Target language index changed: {Index}", _settingsService.AppSettings.TranslationSettings.SelectedTargetLanguageIndex);
-                    UpdateTranslations();
-                }
-            }
             else if (message.Sender is MediaSourceProviderInfo)
             {
                 if (message.PropertyName == nameof(MediaSourceProviderInfo.TimelineSyncThreshold))
@@ -337,10 +309,6 @@ namespace BetterLyrics.WinUI3.ViewModels.LyricsRendererViewModel
                 {
                     _isLayoutChanged = true;
                 }
-                else if (message.PropertyName == nameof(LyricsStyleSettings.LyricsTranslationSeparator))
-                {
-                    UpdateTranslations();
-                }
             }
         }
 

BetterLyrics.WinUI3/BetterLyrics.WinUI3/ViewModels/LyricsRendererViewModel/LyricsRendererViewModel.Update.cs

@@ -336,9 +336,9 @@ namespace BetterLyrics.WinUI3.ViewModels.LyricsRendererViewModel
             double y = 0;
 
             // Init Positions
-            for (int i = 0; i < _lyricsDataArr.ElementAtOrDefault(_langIndex)?.LyricsLines.Count; i++)
+            for (int i = 0; i < _currentLyricsData?.LyricsLines.Count; i++)
             {
-                var line = _lyricsDataArr[_langIndex].LyricsLines.ElementAtOrDefault(i);
+                var line = _currentLyricsData?.LyricsLines.ElementAtOrDefault(i);
 
                 if (line == null)
                 {
@@ -366,7 +366,7 @@ namespace BetterLyrics.WinUI3.ViewModels.LyricsRendererViewModel
 
             // Set _scrollOffsetY
 
-            LyricsLine? currentPlayingLine = _lyricsDataArr.ElementAtOrDefault(_langIndex)?.LyricsLines.ElementAtOrDefault(_playingLineIndex);
+            LyricsLine? currentPlayingLine = _currentLyricsData?.LyricsLines.ElementAtOrDefault(_playingLineIndex);
 
             if (currentPlayingLine == null) return;
 
@@ -374,7 +374,7 @@ namespace BetterLyrics.WinUI3.ViewModels.LyricsRendererViewModel
 
             if (playingTextLayout == null) return;
 
-            double? targetYScrollOffset = -currentPlayingLine!.Position.Y + _lyricsDataArr.ElementAtOrDefault(_langIndex)?.LyricsLines[0].Position.Y - playingTextLayout.LayoutBounds.Height / 2.0;
+            double? targetYScrollOffset = -currentPlayingLine!.Position.Y + _currentLyricsData?.LyricsLines[0].Position.Y - playingTextLayout.LayoutBounds.Height / 2.0;
 
             if (!targetYScrollOffset.HasValue) return;
 
@@ -385,7 +385,7 @@ namespace BetterLyrics.WinUI3.ViewModels.LyricsRendererViewModel
         {
             var (startLineIndex, endLineIndex) = GetMaxLyricsLineIndexBoundaries();
 
-            var lines = _lyricsDataArr.ElementAtOrDefault(_langIndex)?.LyricsLines;
+            var lines = _currentLyricsData?.LyricsLines;
             if (lines == null || lines.Count == 0) return;
 
             double offset = _canvasYScrollTransition.Value + _canvasHeight / 2;
@@ -555,15 +555,13 @@ namespace BetterLyrics.WinUI3.ViewModels.LyricsRendererViewModel
 
         private void UpdateVisibleLinesProps(ICanvasAnimatedControl control)
         {
-            var currentPlayingLine = _lyricsDataArr
-                .ElementAtOrDefault(_langIndex)
-                ?.LyricsLines.ElementAtOrDefault(_playingLineIndex);
+            var currentPlayingLine = _currentLyricsData?.LyricsLines.ElementAtOrDefault(_playingLineIndex);
 
             if (currentPlayingLine == null) return;
 
             for (int i = _startVisibleLineIndex; i <= _endVisibleLineIndex + 1; i++)
             {
-                var line = _lyricsDataArr.ElementAtOrDefault(_langIndex)?.LyricsLines.ElementAtOrDefault(i);
+                var line = _currentLyricsData?.LyricsLines.ElementAtOrDefault(i);
 
                 if (line == null) continue;
 
@@ -591,25 +589,31 @@ namespace BetterLyrics.WinUI3.ViewModels.LyricsRendererViewModel
                     line.HighlightOpacityTransition.StartTransition(i == _playingLineIndex ? 1f : 0f);
 
                     double yScrollDuration;
+                    double yScrollDelay;
+
                     if (lineCountDelta < 0)
                     {
                         yScrollDuration =
                             _canvasYScrollTransition.DurationSeconds +
                             distanceFactor * (_liveStatesService.LiveStates.CurrentLyricsEffectSettings.LyricsScrollTopDuration / 1000.0 - _canvasYScrollTransition.DurationSeconds);
+                        yScrollDelay = distanceFactor * _liveStatesService.LiveStates.CurrentLyricsEffectSettings.LyricsScrollTopDelay / 1000.0;
                     }
                     else if (lineCountDelta == 0)
                     {
                         yScrollDuration = _canvasYScrollTransition.DurationSeconds;
+                        yScrollDelay = 0;
                     }
                     else
                     {
                         yScrollDuration =
                             _canvasYScrollTransition.DurationSeconds +
                             distanceFactor * (_liveStatesService.LiveStates.CurrentLyricsEffectSettings.LyricsScrollBottomDuration / 1000.0 - _canvasYScrollTransition.DurationSeconds);
+                        yScrollDelay = distanceFactor * _liveStatesService.LiveStates.CurrentLyricsEffectSettings.LyricsScrollBottomDelay / 1000.0;
                     }
 
                     line.YOffsetTransition.SetEasingType(_canvasYScrollTransition.EasingType ?? EasingType.Linear);
                     line.YOffsetTransition.SetDuration(yScrollDuration);
+                    line.YOffsetTransition.SetDelay(yScrollDelay);
                     line.YOffsetTransition.StartTransition(_canvasTargetYScrollOffset, _isLayoutChanged);
                 }
 

BetterLyrics.WinUI3/BetterLyrics.WinUI3/ViewModels/LyricsRendererViewModel/LyricsRendererViewModel.cs

@@ -14,6 +14,7 @@ using BetterLyrics.WinUI3.Services.MediaSessionsService;
 using BetterLyrics.WinUI3.Services.SettingsService;
 using BetterLyrics.WinUI3.Services.TranslateService;
 using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.DependencyInjection;
 using CommunityToolkit.WinUI;
 using Microsoft.Extensions.Logging;
 using Microsoft.Graphics.Canvas;
@@ -55,8 +56,6 @@ namespace BetterLyrics.WinUI3.ViewModels.LyricsRendererViewModel
         private int _drawFrameCount = 0;
         private int _displayedDrawFrameCount = 0;
 
-        private Queue<SoftwareBitmap?> _cachedAlbumArtSwBitmaps = [];
-
         private SoftwareBitmap? _lastAlbumArtSwBitmap = null;
         private SoftwareBitmap? _albumArtSwBitmap = null;
 
@@ -87,21 +86,10 @@ namespace BetterLyrics.WinUI3.ViewModels.LyricsRendererViewModel
 
         private double _canvasTargetYScrollOffset = 0;
 
-        [ObservableProperty]
-        [NotifyPropertyChangedRecipients]
-        public partial LyricsSearchProvider? LyricsSearchProvider { get; set; } = null;
-
-        [ObservableProperty]
-        [NotifyPropertyChangedRecipients]
-        public partial TranslationSearchProvider? TranslationSearchProvider { get; set; } = null;
-
         private double _maxLyricsWidth = 0f;
 
         private readonly ISettingsService _settingsService;
-        private readonly ILyricsSearchService _lyrcsSearchService;
-        private readonly ILibWatcherService _libWatcherService;
         private readonly IMediaSessionsService _mediaSessionsService;
-        private readonly ITranslateService _translateService;
         private readonly ILastFMService _lastFMService;
         private readonly ILiveStatesService _liveStatesService;
         private readonly ILogger _logger;
@@ -132,6 +120,8 @@ namespace BetterLyrics.WinUI3.ViewModels.LyricsRendererViewModel
         private int _startVisibleLineIndex = -1;
         private int _endVisibleLineIndex = -1;
 
+        private LyricsData? _currentLyricsData;
+
         private bool _isDebugOverlayEnabled = false;
 
         [ObservableProperty]
@@ -142,10 +132,6 @@ namespace BetterLyrics.WinUI3.ViewModels.LyricsRendererViewModel
 
         private bool _isLayoutChanged = true;
 
-        private int _langIndex = 0;
-
-        private List<LyricsData> _lyricsDataArr = [];
-
         private int _timelineSyncThreshold = 0;
 
         private CanvasTextFormat _lyricsTextFormat = new()
@@ -178,14 +164,8 @@ namespace BetterLyrics.WinUI3.ViewModels.LyricsRendererViewModel
             FontWeight = FontWeights.ExtraBlack,
         };
 
-        private BackgroundTaskRunner _refreshLyricsRunner = new();
-        private BackgroundTaskRunner _showTranslationsRunner = new();
-
         private LyricsLayoutOrientation _lyricsLayoutOrientation;
 
-        [ObservableProperty]
-        public partial bool IsTranslating { get; set; } = false;
-
         [ObservableProperty]
         public partial SongInfo? SongInfo { get; set; }
 
@@ -193,16 +173,53 @@ namespace BetterLyrics.WinUI3.ViewModels.LyricsRendererViewModel
         [NotifyPropertyChangedRecipients]
         public partial ElementTheme ThemeTypeSent { get; set; }
 
+        public LyricsRendererViewModel(
+            ISettingsService settingsService,
+            IMediaSessionsService mediaSessionsService,
+            ILastFMService lastFMService,
+            ILiveStatesService liveStatesService)
+        {
+            _settingsService = settingsService;
+            _mediaSessionsService = mediaSessionsService;
+            _liveStatesService = liveStatesService;
+
+            _lastFMService = lastFMService;
+
+            _logger = Ioc.Default.GetRequiredService<ILogger<LyricsRendererViewModel>>();
+
+            AppSettings = _settingsService.AppSettings;
+
+            _titleTextFormat.HorizontalAlignment = _artistTextFormat.HorizontalAlignment = _settingsService.AppSettings.AlbumArtLayoutSettings.SongInfoAlignmentType.ToCanvasHorizontalAlignment();
+
+            _timelineSyncThreshold = 0;
+
+            _mediaSessionsService.IsPlayingChanged += MediaSessionsService_IsPlayingChanged;
+            _mediaSessionsService.SongInfoChanged += MediaSessionsService_SongInfoChanged;
+            _mediaSessionsService.AlbumArtChanged += MediaSessionsService_AlbumArtChangedChanged;
+            _mediaSessionsService.LyricsChanged += MediaSessionsService_LyricsChanged;
+            _mediaSessionsService.TimelineChanged += MediaSessionsService_TimelineChanged;
+
+            IsPlaying = _mediaSessionsService.IsPlaying;
+
+            UpdateColorConfig();
+        }
+
+        private void MediaSessionsService_LyricsChanged(object? sender, LyricsChangedEventArgs e)
+        {
+            _currentLyricsData = e.LyricsData;
+            _isLayoutChanged = true;
+        }
+
         private int GetCurrentPlayingLineIndex()
         {
             var totalMs = TotalTime.TotalMilliseconds + _positionOffset.TotalMilliseconds;
-            if (totalMs < _lyricsDataArr.ElementAtOrDefault(_langIndex)?.LyricsLines.FirstOrDefault()?.StartMs) return 0;
+            if (totalMs < _currentLyricsData?.LyricsLines.FirstOrDefault()?.StartMs) return 0;
 
-            for (int i = 0; i < _lyricsDataArr.ElementAtOrDefault(_langIndex)?.LyricsLines.Count; i++)
+            for (int i = 0; i < _currentLyricsData?.LyricsLines.Count; i++)
             {
-                var line = _lyricsDataArr.ElementAtOrDefault(_langIndex)?.LyricsLines.ElementAtOrDefault(i);
+                var line = _currentLyricsData?.LyricsLines.ElementAtOrDefault(i);
                 if (line == null) continue;
-                var nextLine = _lyricsDataArr.ElementAtOrDefault(_langIndex)?.LyricsLines.ElementAtOrDefault(i + 1);
+                var nextLine = _currentLyricsData?.LyricsLines.ElementAtOrDefault(i + 1);
                 if (nextLine != null && line.StartMs <= totalMs && totalMs < nextLine.StartMs)
                 {
                     return i;
@@ -222,9 +239,9 @@ namespace BetterLyrics.WinUI3.ViewModels.LyricsRendererViewModel
             charLength = 0;
             charProgress = 0f;
 
-            var line = _lyricsDataArr.ElementAtOrDefault(_langIndex)?.LyricsLines.ElementAtOrDefault(lineIndex);
+            var line = _currentLyricsData?.LyricsLines.ElementAtOrDefault(lineIndex);
             if (line == null) return;
-            var nextLine = _lyricsDataArr.ElementAtOrDefault(_langIndex)?.LyricsLines.ElementAtOrDefault(lineIndex + 1);
+            var nextLine = _currentLyricsData?.LyricsLines.ElementAtOrDefault(lineIndex + 1);
 
             int lineEndMs;
             if (line.EndMs != null) lineEndMs = line.EndMs.Value;
@@ -309,31 +326,22 @@ namespace BetterLyrics.WinUI3.ViewModels.LyricsRendererViewModel
         {
             if (
                 SongInfo == null
-                || _lyricsDataArr.ElementAtOrDefault(_langIndex) == null
-                || _lyricsDataArr[_langIndex].LyricsLines.Count == 0
+                || _currentLyricsData == null
+                || _currentLyricsData.LyricsLines.Count == 0
             )
             {
                 return new Tuple<int, int>(-1, -1);
             }
 
-            return new Tuple<int, int>(0, _lyricsDataArr[_langIndex].LyricsLines.Count - 1);
+            return new Tuple<int, int>(0, _currentLyricsData.LyricsLines.Count - 1);
         }
 
-        private void LibWatcherService_MusicLibraryFilesChanged(object? sender, LibChangedEventArgs e)
-        {
-            _logger.LogInformation("Music library files changed: {ChangeType} {FilePath}, refreshing lyrics...", e.ChangeType, e.FilePath);
-            _refreshLyricsRunner.Run(async token =>
-            {
-                await RefreshLyricsAsync(token);
-            });
-        }
-
-        private void PlaybackService_IsPlayingChanged(object? sender, IsPlayingChangedEventArgs e)
+        private void MediaSessionsService_IsPlayingChanged(object? sender, IsPlayingChangedEventArgs e)
         {
             IsPlaying = e.IsPlaying;
         }
 
-        private void PlaybackService_TimelineChanged(object? sender, TimelineChangedEventArgs e)
+        private void MediaSessionsService_TimelineChanged(object? sender, TimelineChangedEventArgs e)
         {
             var diff = Math.Abs(TotalTime.TotalMilliseconds - e.Position.TotalMilliseconds);
             if (diff >= _timelineSyncThreshold)
@@ -352,7 +360,7 @@ namespace BetterLyrics.WinUI3.ViewModels.LyricsRendererViewModel
             }
         }
 
-        private void PlaybackService_SongInfoChanged(object? sender, SongInfoChangedEventArgs e)
+        private void MediaSessionsService_SongInfoChanged(object? sender, SongInfoChangedEventArgs e)
         {
             SongInfo = e.SongInfo;
 
@@ -373,11 +381,6 @@ namespace BetterLyrics.WinUI3.ViewModels.LyricsRendererViewModel
                 _songInfoOpacityTransition.Reset(0f);
                 _songInfoOpacityTransition.StartTransition(1f);
 
-                _logger.LogInformation("Song info changed: Title={Title}, Artist={Artist}, refreshing lyrics...", _songTitle, _songArtist);
-                _refreshLyricsRunner.Run(async token =>
-                {
-                    await RefreshLyricsAsync(token);
-                });
                 TotalTime = TimeSpan.Zero;
 
                 // 处理 Last.fm 追踪
@@ -386,222 +389,17 @@ namespace BetterLyrics.WinUI3.ViewModels.LyricsRendererViewModel
             }
         }
 
-        private void PlaybackService_AlbumArtChangedChanged(object? sender, AlbumArtChangedEventArgs e)
+        private void MediaSessionsService_AlbumArtChangedChanged(object? sender, AlbumArtChangedEventArgs e)
         {
-            if (e.AlbumArtSwBitmap != _albumArtSwBitmap)
-            {
-                _cachedAlbumArtSwBitmaps.Append(_albumArtSwBitmap);
+            _lastAlbumArtSwBitmap = _albumArtSwBitmap;
+            _albumArtSwBitmap = e.AlbumArtSwBitmap;
 
-                _lastAlbumArtSwBitmap = _albumArtSwBitmap;
+            _albumArtChanged = true;
 
-                if (_cachedAlbumArtSwBitmaps.Count > 2)
-                {
-                    _cachedAlbumArtSwBitmaps.Dequeue()?.Dispose();
-                }
+            _albumArtLightAccentColor = e.AlbumArtLightAccentColor ?? Colors.Transparent;
+            _albumArtDarkAccentColor = e.AlbumArtDarkAccentColor ?? Colors.Transparent;
 
-                _cachedAlbumArtSwBitmaps.Append(e.AlbumArtSwBitmap);
-
-                _albumArtSwBitmap = e.AlbumArtSwBitmap;
-
-                if (_cachedAlbumArtSwBitmaps.Count > 2)
-                {
-                    _cachedAlbumArtSwBitmaps.Dequeue()?.Dispose();
-                }
-
-                _albumArtChanged = true;
-
-                _albumArtLightAccentColor = e.AlbumArtLightAccentColor ?? Colors.Transparent;
-                _albumArtDarkAccentColor = e.AlbumArtDarkAccentColor ?? Colors.Transparent;
-
-                UpdateColorConfig();
-            }
-            else
-            {
-                e.AlbumArtSwBitmap?.Dispose();
-            }
-        }
-
-        private void UpdateTranslations()
-        {
-            TranslationSearchProvider = null;
-            _lyricsDataArr.ElementAtOrDefault(0)?.SetDisplayedTextInOriginalText();
-            _isLayoutChanged = true;
-
-            IsTranslating = true;
-            if (_settingsService.AppSettings.TranslationSettings.IsTranslationEnabled)
-            {
-                _refreshLyricsRunner.Run(async token =>
-                {
-                    await SetDisplayedAlongWithTranslationsAsync(token);
-                    IsTranslating = false;
-                    _isLayoutChanged = true;
-                });
-            }
-            else
-            {
-                _lyricsDataArr.ElementAtOrDefault(0)?.SetDisplayedTextInOriginalText();
-                _langIndex = 0;
-                IsTranslating = false;
-                _isLayoutChanged = true;
-            }
-        }
-
-        private async Task SetDisplayedAlongWithTranslationsAsync(CancellationToken token)
-        {
-            _logger.LogInformation("Showing translation for lyrics...");
-            string targetLangCode = LanguageHelper.SupportedTargetLanguages[_settingsService.AppSettings.TranslationSettings.SelectedTargetLanguageIndex].Code;
-            _logger.LogInformation("Target language code: {TargetLangCode}", targetLangCode);
-            string? originalText = _lyricsDataArr.FirstOrDefault()?.WrappedOriginalText;
-            if (originalText == null) return;
-
-            string? originalLangCode = LanguageHelper.DetectLanguageCode(originalText);
-            _logger.LogInformation("Original language code: {OriginalLangCode}", originalLangCode ?? "null");
-
-            if (originalLangCode == targetLangCode)
-            {
-                _logger.LogInformation("Original lyrics already in target language: {TargetLangCode}", targetLangCode);
-                _lyricsDataArr[0].SetDisplayedTextInOriginalText();
-            }
-            else
-            {
-                // Try get translation from itself first
-                int found = _translateService.SearchTranslatedLyricsItself(_lyricsDataArr);
-                if (found >= 0)
-                {
-                    _logger.LogInformation("Found translation in lyrics data at index {FoundIndex}", found);
-                    if (_settingsService.AppSettings.TranslationSettings.ShowTranslationOnly)
-                    {
-                        _lyricsDataArr[found].SetDisplayedTextInOriginalText();
-                        _langIndex = found;
-                    }
-                    else
-                    {
-                        _lyricsDataArr[0].SetDisplayedTextAlongWith(_lyricsDataArr[found], _liveStatesService.LiveStates.CurrentLyricsStyleSettings.LyricsTranslationSeparator, 50);
-                        _langIndex = 0;
-                    }
-                    TranslationSearchProvider = LyricsSearchProvider.ToTranslationSearchProvider();
-                }
-                else if (_settingsService.AppSettings.TranslationSettings.IsLibreTranslateEnabled)
-                {
-                    _logger.LogInformation("LibreTranslate is enabled, trying to translate lyrics...");
-                    string translated = string.Empty;
-                    try
-                    {
-                        translated = await _translateService.TranslateTextAsync(originalText, targetLangCode, token);
-                        if (translated == string.Empty) return;
-
-                        if (_settingsService.AppSettings.TranslationSettings.ShowTranslationOnly)
-                        {
-                            _lyricsDataArr[^1] = _lyricsDataArr[0].CreateLyricsDataFrom(translated);
-                            _lyricsDataArr[^1].SetDisplayedTextInOriginalText();
-                            _langIndex = _lyricsDataArr.Count - 1;
-                        }
-                        else
-                        {
-                            _lyricsDataArr[0].SetDisplayedTextAlongWith(translated, _liveStatesService.LiveStates.CurrentLyricsStyleSettings.LyricsTranslationSeparator);
-                            _langIndex = 0;
-                        }
-                        TranslationSearchProvider = Enums.TranslationSearchProvider.LibreTranslate;
-                        token.ThrowIfCancellationRequested();
-                    }
-                    catch (Exception)
-                    {
-                        App.Current.LyricsWindowNotificationPanel?.Notify(App.ResourceLoader?.GetString("LibreTranslateFailed")!, Microsoft.UI.Xaml.Controls.InfoBarSeverity.Error);
-                    }
-                }
-            }
-        }
-
-        private async Task RefreshLyricsAsync(CancellationToken token)
-        {
-            LyricsSearchProvider = null;
-            _logger.LogInformation("Refreshing lyrics...");
-
-            _lyricsDataArr = [LyricsData.GetLoadingPlaceholder()];
-            _isLayoutChanged = true;
-
-            string? lyricsRaw = null;
-            LyricsSearchProvider? lyricsSearchProvider = null;
-
-            if (SongInfo != null)
-            {
-                _logger.LogInformation("Searching lyrics for: Title={Title}, Artist={Artist}, Album={Album}, DurationMs={DurationMs}",
-                    SongInfo.Title, SongInfo.Artist, SongInfo.Album, SongInfo.DurationMs);
-                (lyricsRaw, lyricsSearchProvider) = await _lyrcsSearchService.SearchAsync(
-                    SongInfo.SourceAppUserModelId ?? "",
-                    SongInfo.Title,
-                    SongInfo.Artist,
-                    SongInfo.Album ?? "",
-                    SongInfo.DurationMs ?? 0,
-                    token
-                );
-                _logger.LogInformation("Lyrics was found? {Found}, Provider: {LyricsSearchProvider}", lyricsRaw != null, lyricsSearchProvider?.ToString() ?? "null");
-                LyricsSearchProvider = lyricsSearchProvider;
-                token.ThrowIfCancellationRequested();
-                _lyricsDataArr = new LyricsParser().Parse(lyricsRaw, (int?)SongInfo?.DurationMs);
-                FillTranslationFromCache(LyricsSearchProvider);
-            }
-            else
-            {
-                _logger.LogWarning("SongInfo is null, cannot search lyrics.");
-            }
-
-            _logger.LogInformation("Parsed lyrics: {MultiLangLyricsCount} languages", _lyricsDataArr.Count);
-
-            // This ensures that original lyrics are always shown while waiting for translations
-            _lyricsDataArr[0].SetDisplayedTextInOriginalText();
-            _isLayoutChanged = true;
-
-            UpdateTranslations();
-        }
-
-        private void FillTranslationFromCache(LyricsSearchProvider? provider)
-        {
-            string? translationRaw = null;
-            switch (provider)
-            {
-                case Enums.LyricsSearchProvider.QQ:
-                    translationRaw = Helper.FileHelper.ReadLyricsCache(SongInfo!.Title, SongInfo.Artist, LyricsFormat.Lrc, Helper.PathHelper.QQTranslationCacheDirectory);
-                    break;
-                case Enums.LyricsSearchProvider.Kugou:
-                    break;
-                case Enums.LyricsSearchProvider.Netease:
-                    translationRaw = Helper.FileHelper.ReadLyricsCache(SongInfo!.Title, SongInfo.Artist, LyricsFormat.Lrc, Helper.PathHelper.NeteaseTranslationCacheDirectory);
-                    break;
-                case Enums.LyricsSearchProvider.LrcLib:
-                    break;
-                case Enums.LyricsSearchProvider.AmllTtmlDb:
-                    break;
-                case Enums.LyricsSearchProvider.LocalMusicFile:
-                    break;
-                case Enums.LyricsSearchProvider.LocalLrcFile:
-                    break;
-                case Enums.LyricsSearchProvider.LocalEslrcFile:
-                    break;
-                case Enums.LyricsSearchProvider.LocalTtmlFile:
-                    break;
-                default:
-                    break;
-            }
-            if (translationRaw != null)
-            {
-                var translationData = new LyricsParser().Parse(translationRaw, (int?)SongInfo?.DurationMs);
-                if (provider == Enums.LyricsSearchProvider.QQ)
-                {
-                    foreach (var data in translationData)
-                    {
-                        foreach (var item in data.LyricsLines)
-                        {
-                            if (item.OriginalText == "//")
-                            {
-                                item.OriginalText = "";
-                            }
-                        }
-                    }
-                }
-
-                _lyricsDataArr = _lyricsDataArr.Concat(translationData).ToList();
-            }
+            UpdateColorConfig();
         }
     }
 }

BetterLyrics.WinUI3/BetterLyrics.WinUI3/ViewModels/LyricsWindowViewModel.cs

@@ -120,6 +120,7 @@ namespace BetterLyrics.WinUI3
 
         private void UpdateDockOrDesktopWindow()
         {
+
             var window = WindowHelper.GetWindowByWindowType<LyricsWindow>();
             if (window == null) return;
 
@@ -137,7 +138,7 @@ namespace BetterLyrics.WinUI3
                 }
                 else
                 {
-                    if (LiveStates.CurrentLyricsWindowMode == LyricsWindowMode.DesktopMode)
+                    if (LiveStates.CurrentLyricsWindowMode == LyricsWindowMode.DockMode)
                     {
                         DockModeHelper.UpdateAppBarHeight(hwnd, _dockMonitorDeviceName, _dockWindowHeight, _dockPlacement);
                     }
@@ -217,8 +218,7 @@ namespace BetterLyrics.WinUI3
 
         private void UpdateDesktopLockShortcut()
         {
-            GlobalHotKeyHelper.UnregisterHotKey<LyricsWindow>(ShortcutID.DesktopLock);
-            GlobalHotKeyHelper.RegisterHotKey<LyricsWindow>(ShortcutID.DesktopLock,
+            GlobalHotKeyHelper.UpdateHotKey<LyricsWindow>(ShortcutID.DesktopLock,
                 _settingsService.AppSettings.DesktopModeSettings.LockShortcut,
                 () =>
                 {
@@ -232,8 +232,7 @@ namespace BetterLyrics.WinUI3
 
         private void UpdateDesktopToggleShortcut()
         {
-            GlobalHotKeyHelper.UnregisterHotKey<LyricsWindow>(ShortcutID.DesktopToggle);
-            GlobalHotKeyHelper.RegisterHotKey<LyricsWindow>(ShortcutID.DesktopToggle,
+            GlobalHotKeyHelper.UpdateHotKey<LyricsWindow>(ShortcutID.DesktopToggle,
                 _settingsService.AppSettings.DesktopModeSettings.ToggleShortcut,
                 () =>
                 {
@@ -248,8 +247,7 @@ namespace BetterLyrics.WinUI3
 
         private void UpdateDockToggleShortcut()
         {
-            GlobalHotKeyHelper.UnregisterHotKey<LyricsWindow>(ShortcutID.DockToggle);
-            GlobalHotKeyHelper.RegisterHotKey<LyricsWindow>(ShortcutID.DockToggle,
+            GlobalHotKeyHelper.UpdateHotKey<LyricsWindow>(ShortcutID.DockToggle,
                 _settingsService.AppSettings.DockModeSettings.ToggleShortcut,
                 () =>
                 {
@@ -264,8 +262,7 @@ namespace BetterLyrics.WinUI3
 
         private void UpdatePictureInPictureToggleShortcut()
         {
-            GlobalHotKeyHelper.UnregisterHotKey<LyricsWindow>(ShortcutID.PictureInPictureToggle);
-            GlobalHotKeyHelper.RegisterHotKey<LyricsWindow>(ShortcutID.PictureInPictureToggle,
+            GlobalHotKeyHelper.UpdateHotKey<LyricsWindow>(ShortcutID.PictureInPictureToggle,
                 _settingsService.AppSettings.PictureInPictureModeSettings.ToggleShortcut,
                 () =>
                 {
@@ -462,6 +459,7 @@ namespace BetterLyrics.WinUI3
             if (LiveStates.CurrentLyricsWindowMode == LyricsWindowMode.PictureInPictureMode)
             {
                 window.AppWindow.SetPresenter(AppWindowPresenterKind.CompactOverlay);
+                window.AppWindow.Move(AppSettings.PictureInPictureModeSettings.WindowPosition.ToPointInt32());
                 SetPIPModeTitleBarControlsStatus();
             }
             else

BetterLyrics.WinUI3/BetterLyrics.WinUI3/ViewModels/PlaybackSettingsControlViewModel.cs

@@ -80,6 +80,9 @@ namespace BetterLyrics.WinUI3.ViewModels
             IsLastFMAuthenticated = _lastFMService.IsAuthenticated;
             LastFMUser = _lastFMService.User;
 
+            LyricsSearchProvider = _mediaSessionsService.LyricsSearchProvider;
+            TranslationSearchProvider = _mediaSessionsService.TranslationSearchProvider;
+
             SelectedMediaSourceProvider = AppSettings.MediaSourceProvidersInfo.FirstOrDefault();
         }
 
@@ -121,7 +124,7 @@ namespace BetterLyrics.WinUI3.ViewModels
                 try
                 {
                     string targetLangCode = LanguageHelper.SupportedTargetLanguages[AppSettings.TranslationSettings.SelectedTargetLanguageIndex].Code;
-                    string result = await _libreTranslateService.TranslateTextAsync("Hello, world!", targetLangCode, null);
+                    string result = await _libreTranslateService.TranslateTextAsync("Hello, world!", targetLangCode, new System.Threading.CancellationToken());
                     _dispatcherQueue.TryEnqueue(DispatcherQueuePriority.Low, () =>
                     {
                         App.Current.SettingsWindowNotificationPanel?.Notify(App.ResourceLoader!.GetString("SettingsPageServerTestSuccessInfo"), InfoBarSeverity.Success);
@@ -183,9 +186,9 @@ namespace BetterLyrics.WinUI3.ViewModels
 
         public void Receive(PropertyChangedMessage<LyricsSearchProvider?> message)
         {
-            if (message.Sender is LyricsRendererViewModel.LyricsRendererViewModel)
+            if (message.Sender is MediaSessionsService)
             {
-                if (message.PropertyName == nameof(LyricsRendererViewModel.LyricsRendererViewModel.LyricsSearchProvider))
+                if (message.PropertyName == nameof(MediaSessionsService.LyricsSearchProvider))
                 {
                     LyricsSearchProvider = message.NewValue;
                 }
@@ -194,9 +197,9 @@ namespace BetterLyrics.WinUI3.ViewModels
 
         public void Receive(PropertyChangedMessage<TranslationSearchProvider?> message)
         {
-            if (message.Sender is LyricsRendererViewModel.LyricsRendererViewModel)
+            if (message.Sender is MediaSessionsService)
             {
-                if (message.PropertyName == nameof(LyricsRendererViewModel.LyricsRendererViewModel.TranslationSearchProvider))
+                if (message.PropertyName == nameof(MediaSessionsService.TranslationSearchProvider))
                 {
                     TranslationSearchProvider = message.NewValue;
                 }

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Views/LyricsWindow.xaml.cs

@@ -20,6 +20,7 @@ namespace BetterLyrics.WinUI3.Views
     {
         private readonly ISettingsService _settingsService = Ioc.Default.GetRequiredService<ISettingsService>();
         private readonly WindowMessageMonitor _wmm;
+        private bool _autoSelectLyricsModeOnRunning = true;
 
         public LyricsWindow()
         {
@@ -75,8 +76,17 @@ namespace BetterLyrics.WinUI3.Views
             switch (type!)
             {
                 case LyricsWindowMode.StandardMode:
-                    AppWindow.MoveAndResize(_settingsService.AppSettings.StandardModeSettings.WindowBounds.ToRectInt32());
                     ViewModel.SetStandardModeTitleBarControlsStatus();
+                    if (_settingsService.AppSettings.StandardModeSettings.IsMaximized)
+                    {
+                        // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD><C3B4>ڴ<EFBFBD>С<EFBFBD>Ա<EFBFBD><D4B1>˳<EFBFBD><CBB3><EFBFBD><EFBFBD>󻯺<EFBFBD>
+                        // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܶ<EFBFBD><DCB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD><C4BB>ԵӰ<D4B5><D3B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+                        this.Maximize();
+                    }
+                    else
+                    {
+                        AppWindow.MoveAndResize(_settingsService.AppSettings.StandardModeSettings.WindowBounds.ToRectInt32());
+                    }
                     break;
                 case LyricsWindowMode.DockMode:
                     ViewModel.ToggleDockMode();
@@ -84,9 +94,13 @@ namespace BetterLyrics.WinUI3.Views
                 case LyricsWindowMode.DesktopMode:
                     ViewModel.ToggleDesktopMode();
                     break;
+                case LyricsWindowMode.PictureInPictureMode:
+                    ViewModel.TogglePictureInPictureMode();
+                    break;
                 default:
                     break;
             }
+            _autoSelectLyricsModeOnRunning = false;
         }
 
         private void AOTFlyoutItem_Click(object sender, RoutedEventArgs e)
@@ -96,6 +110,8 @@ namespace BetterLyrics.WinUI3.Views
 
         private void AppWindow_Changed(AppWindow sender, AppWindowChangedEventArgs args)
         {
+            if (_autoSelectLyricsModeOnRunning) return;
+
             if (args.DidPositionChange || args.DidSizeChange)
             {
                 var size = AppWindow.Size;
@@ -107,14 +123,28 @@ namespace BetterLyrics.WinUI3.Views
                 }
                 else
                 {
-                    if (ViewModel.LiveStates.CurrentLyricsWindowMode == LyricsWindowMode.DesktopMode)
+                    switch (ViewModel.LiveStates.CurrentLyricsWindowMode)
                     {
-                        _settingsService.AppSettings.DesktopModeSettings.WindowBounds = new Windows.Foundation.Rect(rect.X, rect.Y, size.Width, size.Height);
-                    }
-                    else if (ViewModel.LiveStates.CurrentLyricsWindowMode == LyricsWindowMode.DockMode) { }
-                    else
-                    {
-                        _settingsService.AppSettings.StandardModeSettings.WindowBounds = new Windows.Foundation.Rect(rect.X, rect.Y, size.Width, size.Height);
+                        case LyricsWindowMode.StandardMode:
+                            if (AppWindow.Presenter is OverlappedPresenter overlappedPresenter)
+                            {
+                                _settingsService.AppSettings.StandardModeSettings.WindowBounds = new Windows.Foundation.Rect(rect.X, rect.Y, size.Width, size.Height);
+                                _settingsService.AppSettings.StandardModeSettings.IsMaximized = overlappedPresenter.State == OverlappedPresenterState.Maximized;
+                            }
+                            break;
+                        case LyricsWindowMode.DockMode:
+                            break;
+                        case LyricsWindowMode.DesktopMode:
+                            _settingsService.AppSettings.DesktopModeSettings.WindowBounds = new Windows.Foundation.Rect(rect.X, rect.Y, size.Width, size.Height);
+                            break;
+                        case LyricsWindowMode.PictureInPictureMode:
+                            if (AppWindow.Presenter is CompactOverlayPresenter compactOverlayPresenter)
+                            {
+                                _settingsService.AppSettings.PictureInPictureModeSettings.WindowPosition = new Windows.Foundation.Point(rect.X, rect.Y);
+                            }
+                            break;
+                        default:
+                            break;
                     }
                 }
             }

BetterLyrics.WinUI3/BetterLyrics.WinUI3/Views/SettingsPage.xaml

@@ -89,7 +89,7 @@
 
                 <!--  Lyrics background  -->
                 <controls:Case Value="Background">
-                    <uc:LyricsBavkgroundSettingsControl />
+                    <uc:LyricsBackgroundSettingsControl />
                 </controls:Case>
 
                 <!--  Album art area style  -->