feat: 单实例锁，重复启动时激活已有窗口

Author: Applesaber

ChuChartManager/AppMain.cs

@@ -1,6 +1,8 @@
+using SingleInstanceCore;
+
 namespace ChuChartManager;
 
-public partial class AppMain
+public partial class AppMain : ISingleInstance
 {
     public static Browser? BrowserWin { get; set; }
     public static OobeBrowser? OobeBrowserWin { get; set; }
@@ -55,4 +57,19 @@ public static void CheckShouldExit()
             Application.Exit();
         }
     }
+
+    /// <summary>第二个实例启动时，把已有窗口带到前台</summary>
+    public void OnInstanceInvoked(string[] args)
+    {
+        UiContext?.Post(_ =>
+        {
+            var win = (Form?)(BrowserWin is { IsDisposed: false } ? BrowserWin : null)
+                      ?? (OobeBrowserWin is { IsDisposed: false } ? OobeBrowserWin : null);
+            if (win == null) return;
+
+            if (win.WindowState == FormWindowState.Minimized)
+                win.WindowState = FormWindowState.Normal;
+            win.Activate();
+        }, null);
+    }
 }

ChuChartManager/ChuChartManager.csproj

@@ -42,6 +42,7 @@
     <PackageReference Include="NAudio" Version="2.3.0" />
     <PackageReference Include="NAudio.Lame" Version="2.1.0" />
     <PackageReference Include="Pfim" Version="0.11.4" />
+    <PackageReference Include="SingleInstanceCore" Version="2.2.2" />
     <PackageReference Include="SixLabors.ImageSharp" Version="3.1.12" />
     <PackageReference Include="Tomlyn" Version="2.4.0" />
     <PackageReference Include="YAXLib" Version="2.15.0" />

ChuChartManager/Program.cs

@@ -1,46 +1,59 @@
+using SingleInstanceCore;
+
 namespace ChuChartManager;
 
 public static class Program
 {
     [STAThread]
     public static void Main()
     {
-        ApplicationConfiguration.Initialize();
-
-        Directory.CreateDirectory(StaticSettings.AppDataDir);
-        StaticSettings.Config = Config.Load();
+        var app = new AppMain();
+        var isFirstInstance = app.InitializeAsFirstInstance("ChuChartManager");
+        if (!isFirstInstance) return;
 
-        var hasGamePath = !string.IsNullOrEmpty(StaticSettings.Config.GamePath)
-                          && Directory.Exists(StaticSettings.Config.GamePath);
-
-        if (hasGamePath)
+        try
         {
-            StaticSettings.GamePath = StaticSettings.Config.GamePath;
-            StaticSettings.ReadGameVersion();
-            var scanner = new MusicScanner(StaticSettings.GamePath);
-            scanner.ScanAll();
-            StaticSettings.Scanner = scanner;
-
-            AppMain.BrowserWin = new Browser();
-            AppMain.BrowserWin.Show();
+            ApplicationConfiguration.Initialize();
+
+            Directory.CreateDirectory(StaticSettings.AppDataDir);
+            StaticSettings.Config = Config.Load();
+
+            var hasGamePath = !string.IsNullOrEmpty(StaticSettings.Config.GamePath)
+                              && Directory.Exists(StaticSettings.Config.GamePath);
+
+            if (hasGamePath)
+            {
+                StaticSettings.GamePath = StaticSettings.Config.GamePath;
+                StaticSettings.ReadGameVersion();
+                var scanner = new MusicScanner(StaticSettings.GamePath);
+                scanner.ScanAll();
+                StaticSettings.Scanner = scanner;
+
+                AppMain.BrowserWin = new Browser();
+                AppMain.BrowserWin.Show();
+            }
+            else
+            {
+                AppMain.OobeBrowserWin = new OobeBrowser();
+                AppMain.OobeBrowserWin.Show();
+            }
+
+            // Form.Show() 后 SynchronizationContext 才可用
+            AppMain.UiContext = SynchronizationContext.Current;
+
+            ServerManager.StartApp(StaticSettings.Config.IsExport, url =>
+            {
+                if (AppMain.BrowserWin is { IsDisposed: false } browser)
+                    browser.Invoke(() => browser.InjectBackendUrl(url));
+                if (AppMain.OobeBrowserWin is { IsDisposed: false } oobe)
+                    oobe.Invoke(() => oobe.InjectBackendUrl(url));
+            });
+
+            Application.Run();
         }
-        else
+        finally
         {
-            AppMain.OobeBrowserWin = new OobeBrowser();
-            AppMain.OobeBrowserWin.Show();
+            SingleInstance.Cleanup();
         }
-
-        // Form.Show() 后 SynchronizationContext 才可用
-        AppMain.UiContext = SynchronizationContext.Current;
-
-        ServerManager.StartApp(StaticSettings.Config.IsExport, url =>
-        {
-            if (AppMain.BrowserWin is { IsDisposed: false } browser)
-                browser.Invoke(() => browser.InjectBackendUrl(url));
-            if (AppMain.OobeBrowserWin is { IsDisposed: false } oobe)
-                oobe.Invoke(() => oobe.InjectBackendUrl(url));
-        });
-
-        Application.Run();
     }
 }