增强托盘功能和界面样式

在 `App.xaml` 中更新资源字典，添加 `MaterialTrayMenuItem.xaml` 以支持托盘菜单样式。
在 `MainWindow.xaml` 中添加 `Closed` 和 `Loaded` 事件处理程序。
在 `MainWindow.xaml.cs` 中引入 `TrayIconManager`，管理系统托盘图标及其行为。
更新 `chatclient.csproj` 中 `chat.ico` 的属性以确保复制到输出目录。
在 `MaterialTrayMenuItem.xaml` 中定义 Material Design 风格的托盘菜单项和上下文菜单样式。
创建 `TrayIconManager.cs` 类以优化托盘图标的创建和事件处理，提升用户体验。

chatclient/App.xaml

@@ -5,14 +5,15 @@
             xmlns:local="clr-namespace:chatclient"
             StartupUri="MainWindow.xaml">
    <Application.Resources>
-       <ResourceDictionary>
+        <ResourceDictionary>
-           <ResourceDictionary.MergedDictionaries>
+            <ResourceDictionary.MergedDictionaries>
-               <materialDesign:BundledTheme BaseTheme="Light" PrimaryColor="DeepPurple" SecondaryColor="Lime" />
+                <materialDesign:BundledTheme BaseTheme="Light" PrimaryColor="DeepPurple" SecondaryColor="Lime" />
-               <ResourceDictionary Source="pack://application:,,,/MaterialDesignThemes.Wpf;component/Themes/MaterialDesign3.Defaults.xaml" />
+                <ResourceDictionary Source="pack://application:,,,/MaterialDesignThemes.Wpf;component/Themes/MaterialDesign3.Defaults.xaml" />
-               <ResourceDictionary Source="pack://application:,,,/MaterialDesignThemes.Wpf;component/Themes/MaterialDesignTheme.Light.xaml" />
+                <ResourceDictionary Source="pack://application:,,,/MaterialDesignThemes.Wpf;component/Themes/MaterialDesignTheme.Light.xaml" />
-               <ResourceDictionary Source="pack://application:,,,/MaterialDesignThemes.Wpf;component/Themes/MaterialDesign2.Defaults.xaml" />
+                <ResourceDictionary Source="pack://application:,,,/MaterialDesignThemes.Wpf;component/Themes/MaterialDesign2.Defaults.xaml" />
                 <ResourceDictionary Source="pack://application:,,,/MaterialDesignColors;component/Themes/Recommended/Primary/MaterialDesignColor.DeepPurple.xaml" />
+                <ResourceDictionary Source="pack://application:,,,/chatclient;component/Data/MaterialTrayMenuItem.xaml" />
             </ResourceDictionary.MergedDictionaries>
-       </ResourceDictionary>
+        </ResourceDictionary>
-   </Application.Resources>
+    </Application.Resources>
 </Application>

chatclient/Data/MaterialTrayMenuItem.xaml

@@ -0,0 +1,45 @@
+<ResourceDictionary 
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes">
+    <!-- Material Design 托盘菜单样式 -->
+    <Style x:Key="MaterialTrayMenuItem" TargetType="MenuItem" BasedOn="{StaticResource MaterialDesignMenuItem}">
+        <Setter Property="Background" Value="Transparent"/>
+        <Setter Property="BorderThickness" Value="0"/>
+        <Setter Property="Padding" Value="12,8"/>
+        <Setter Property="Foreground" Value="{DynamicResource MaterialDesignBody}"/>
+        <Setter Property="FontSize" Value="14"/>
+        <Setter Property="Template">
+            <Setter.Value>
+                <ControlTemplate TargetType="MenuItem">
+                    <Border x:Name="Border" 
+                            Background="Transparent"
+                            CornerRadius="4"
+                            SnapsToDevicePixels="True">
+                        <Grid>
+                            <materialDesign:Ripple Content="{TemplateBinding Header}" Background="Transparent" Foreground="{TemplateBinding Foreground}"
+                                                   HorizontalContentAlignment="Stretch" VerticalContentAlignment="Center" Padding="{TemplateBinding Padding}"/>
+                        </Grid>
+                    </Border>
+                    <ControlTemplate.Triggers>
+                        <Trigger Property="IsHighlighted" Value="True">
+                            <Setter TargetName="Border" Property="Background" Value="{DynamicResource MaterialDesignSelection}"/>
+                        </Trigger>
+                    </ControlTemplate.Triggers>
+                </ControlTemplate>
+            </Setter.Value>
+        </Setter>
+    </Style>
+    <Style x:Key="MaterialTrayMenu" TargetType="ContextMenu">
+        <Setter Property="Background" Value="{DynamicResource MaterialDesignPaper}"/>
+        <Setter Property="BorderBrush" Value="{DynamicResource MaterialDesignDivider}"/>
+        <Setter Property="BorderThickness" Value="1"/>
+        <Setter Property="Padding" Value="8"/>
+        <Setter Property="SnapsToDevicePixels" Value="True"/>
+        <Setter Property="Effect">
+            <Setter.Value>
+                <DropShadowEffect BlurRadius="16" ShadowDepth="4" Color="#40000000"/>
+            </Setter.Value>
+        </Setter>
+    </Style>
+</ResourceDictionary>

chatclient/Data/TrayIconManager.cs

@@ -0,0 +1,122 @@
+using System.Windows;
+using Hardcodet.Wpf.TaskbarNotification;
+using System.Windows.Controls;
+using MaterialDesignThemes.Wpf;
+using System.Windows.Input;
+using System.Drawing;
+using System.Diagnostics;
+
+namespace chatclient.Data
+{
+    public class TrayIconManager
+    {
+        private readonly TaskbarIcon _trayIcon;
+        private readonly Window _mainWindow;
+
+        public TrayIconManager(Window mainWindow)
+        {
+            _mainWindow = mainWindow;
+
+            // 创建托盘图标
+            _trayIcon = new TaskbarIcon
+            {
+                Icon = new System.Drawing.Icon("resource/chat.ico"),
+                ToolTipText = "Material Design Application",
+                ContextMenu = CreateContextMenu()
+            };
+
+            // 注册事件
+            _trayIcon.TrayMouseDoubleClick += TrayIcon_TrayMouseDoubleClick;
+            _mainWindow.Closing += MainWindow_ClosingHandler;
+        }
+
+        private void MainWindow_ClosingHandler(object? sender, System.ComponentModel.CancelEventArgs e)
+        {
+            // 取消关闭操作，改为最小化到托盘
+            e.Cancel = true;
+            _mainWindow.Hide();
+
+            // 显示通知
+            //_trayIcon.ShowBalloonTip("Application minimized",
+             //   "The application is running in the system tray",
+             //   BalloonIcon.Info);
+        }
+
+        private ContextMenu CreateContextMenu()
+        {
+            // 创建Material Design风格的上下文菜单
+            var contextMenu = new ContextMenu
+            {
+                Style = (Style)Application.Current.Resources["MaterialTrayMenu"]
+            };
+
+            // 添加菜单项
+            contextMenu.Items.Add(CreateMenuItem("Open Application", PackIconKind.WindowRestore, OpenApp_Click));
+            contextMenu.Items.Add(CreateMenuItem("Settings", PackIconKind.Cog, Settings_Click));
+            contextMenu.Items.Add(new Separator { Style = (Style)Application.Current.Resources["MaterialDesignLightSeparator"] });
+            contextMenu.Items.Add(CreateMenuItem("Check for Updates", PackIconKind.Update, Updates_Click));
+            contextMenu.Items.Add(CreateMenuItem("Help", PackIconKind.HelpCircle, Help_Click));
+            contextMenu.Items.Add(new Separator { Style = (Style)Application.Current.Resources["MaterialDesignLightSeparator"] });
+            contextMenu.Items.Add(CreateMenuItem("Exit", PackIconKind.Power, Exit_Click));
+
+            return contextMenu;
+        }
+
+        private MenuItem CreateMenuItem(string header, PackIconKind iconKind, RoutedEventHandler clickHandler)
+        {
+            var menuItem = new MenuItem
+            {
+                Header = header,
+                Style = (Style)Application.Current.Resources["MaterialTrayMenuItem"],
+                Icon = new PackIcon { Kind = iconKind, Width = 20, Height = 20 }
+            };
+
+            menuItem.Click += clickHandler;
+            return menuItem;
+        }
+
+        private void TrayIcon_TrayMouseDoubleClick(object sender, RoutedEventArgs e)
+        {
+            RestoreApplication();
+        }
+
+        private void OpenApp_Click(object sender, RoutedEventArgs e)
+        {
+            RestoreApplication();
+        }
+
+        private void RestoreApplication()
+        {
+            _mainWindow.Show();
+            _mainWindow.WindowState = WindowState.Normal;
+            _mainWindow.Activate();
+        }
+
+        private void Settings_Click(object sender, RoutedEventArgs e)
+        {
+            // 实现设置逻辑
+        }
+
+        private void Updates_Click(object sender, RoutedEventArgs e)
+        {
+            // 实现更新检查逻辑
+        }
+
+        private void Help_Click(object sender, RoutedEventArgs e)
+        {
+            // 实现帮助逻辑
+        }
+
+        private void Exit_Click(object sender, RoutedEventArgs e)
+        {
+            // 释放托盘图标资源
+            Dispose();
+            Application.Current.Shutdown();
+        }
+
+        public void Dispose()
+        {
+            _trayIcon.Dispose();
+        }
+    }
+}

chatclient/MainWindow.xaml

@@ -8,7 +8,7 @@
         xmlns:mah="http://metro.mahapps.com/winfx/xaml/controls" x:Class="chatclient.MainWindow"
         mc:Ignorable="d"
         Title="ChatWindow" Height="450" Width="800" MinHeight="240" MinWidth="380"
-        Style="{StaticResource MaterialDesignWindow}">
+        Style="{StaticResource MaterialDesignWindow}" Closed="MainWindow_Closed" Loaded="MainWindow_Loaded">
     <Grid>
         <materialDesign:Card>
             <TabControl VerticalContentAlignment="Bottom" materialDesign:ColorZoneAssist.Mode="PrimaryMid" Style="{StaticResource MaterialDesignNavigationRailTabControl}">

chatclient/MainWindow.xaml.cs

@@ -56,6 +56,7 @@ namespace chatclient
         {
             PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(UpdateName));
         }
+        private TrayIconManager? _trayManager;
         public MainWindow()
         {
             InitializeComponent();
@@ -84,6 +85,8 @@ namespace chatclient
                     MessageScroller.ScrollToEnd();
                 }), DispatcherPriority.ContextIdle);
             };
+            //Loaded += MainWindow_Loaded;
+            //Closed += MainWindow_Closed;
         }
         public static void StartReceive()
         {
@@ -325,5 +328,18 @@ namespace chatclient
                 Task.Factory.StartNew(() => messageQueue.Enqueue(message));
             }
         }
+        private void MainWindow_Loaded(object sender, RoutedEventArgs e)
+        {
+            // 初始化托盘管理器
+            _trayManager = new TrayIconManager(this);
+        }
+        private void MainWindow_Closed(object sender, System.EventArgs e)
+        {
+            // 清理资源
+            Client?.Shutdown(SocketShutdown.Both);
+            Client?.Close();
+            Client?.Dispose();
+            _trayManager?.Dispose();
+        }
     }
 }

chatclient/chatclient.csproj

@@ -18,7 +18,9 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <Content Include="resource\chat.ico" />
+    <Content Include="resource\chat.ico">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
   </ItemGroup>
 
   <ItemGroup>