refactor: 新建 Platform 平台差异层，主工程 P/Invoke 全部迁出

- 新增 Platform.Abstractions（接口+NoOp+PlatformLog 日志桥）、 Platform.Windows、Platform.MacOS、Platform.Android 四个项目 - 迁移电源管理、原生对话框、桌面层嵌入、窗口置底/区域穿透、 DWM 互操作、图标服务、包标识查询等全部 Windows P/Invoke 实现 - 主工程保留静态工厂门面，调用点不变；DllImport 扫描为零 - 更新 WindowPassthroughServiceTests 指向新位置（20/20 通过）
2026-08-18 15:33:33 +08:00 · 2026-07-26 22:14:46 +09:00
parent 78cbbede9d
commit 9b7a35ddd3
35 changed files with 2157 additions and 1862 deletions
--- a/LanMountainDesktop.Platform.Windows/WindowsPowerManagementService.cs
+++ b/LanMountainDesktop.Platform.Windows/WindowsPowerManagementService.cs
@@ -0,0 +1,106 @@
+using System.Diagnostics;
+using System.Runtime.InteropServices;
+using LanMountainDesktop.Platform.Abstractions;
+
+namespace LanMountainDesktop.Platform.Windows;
+
+/// <summary>
+/// Windows 电源管理实现（P/Invoke user32/powrprof）。
+/// 自 LanMountainDesktop.Services.PowerManagementService 迁移，行为不变。
+/// </summary>
+public sealed class WindowsPowerManagementService : IPowerManagementService
+{
+    public bool IsShutdownSupported => true;
+    public bool IsRestartSupported => true;
+    public bool IsLogoutSupported => true;
+    public bool IsLockSupported => true;
+    public bool IsSleepSupported => true;
+
+    public async Task ShutdownAsync()
+    {
+        await Task.Run(() =>
+        {
+            Process.Start(new ProcessStartInfo
+            {
+                FileName = "shutdown",
+                Arguments = "/s /t 0",
+                UseShellExecute = true,
+                WindowStyle = ProcessWindowStyle.Hidden
+            });
+        });
+    }
+
+    public async Task RestartAsync()
+    {
+        await Task.Run(() =>
+        {
+            Process.Start(new ProcessStartInfo
+            {
+                FileName = "shutdown",
+                Arguments = "/r /t 0",
+                UseShellExecute = true,
+                WindowStyle = ProcessWindowStyle.Hidden
+            });
+        });
+    }
+
+    public async Task LogoutAsync()
+    {
+        await Task.Run(() =>
+        {
+            ExitWindowsEx(0, 0);
+        });
+    }
+
+    public async Task LockAsync()
+    {
+        await Task.Run(() =>
+        {
+            LockWorkStation();
+        });
+    }
+
+    public async Task SleepAsync()
+    {
+        await Task.Run(() =>
+        {
+            SetSuspendState(false, false, false);
+        });
+    }
+
+    public void ShowNativePowerUI(PowerAction action)
+    {
+        // SlideToShutDown.exe 只支持关机，不支持重启
+        // 重启操作应该通过 RestartAsync() 使用 shutdown /r 命令
+        if (action != PowerAction.Shutdown)
+            return;
+
+        var slideToShutDownPath = Environment.ExpandEnvironmentVariables(@"%windir%\System32\SlideToShutDown.exe");
+        if (File.Exists(slideToShutDownPath))
+        {
+            Process.Start(new ProcessStartInfo
+            {
+                FileName = slideToShutDownPath,
+                UseShellExecute = true
+            });
+            return;
+        }
+
+        // 回退到标准关机命令
+        Process.Start(new ProcessStartInfo
+        {
+            FileName = "shutdown",
+            Arguments = "/s /t 5 /c \"LanMountainDesktop: Shutting down...\"",
+            UseShellExecute = true
+        });
+    }
+
+    [DllImport("user32.dll", SetLastError = true)]
+    private static extern bool ExitWindowsEx(uint uFlags, uint dwReason);
+
+    [DllImport("user32.dll")]
+    private static extern void LockWorkStation();
+
+    [DllImport("powrprof.dll", SetLastError = true)]
+    private static extern bool SetSuspendState(bool hibernate, bool forceCritical, bool disableWakeEvent);
+}