Initial commit: FluidExplorer：从零实现的 WinUI 3 文件资源管理器替代品（Mica、命令栏、面包屑）
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WpyQwq
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using System.Diagnostics;
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using System.Runtime.InteropServices;
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using System.Text;
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namespace FluidExplorer.Services.Shell;
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/// <summary>
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/// 交给 Windows 外壳去做的动作（打开、属性、打开方式、在资源管理器中显示…）。
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/// 全部走系统原版行为，保证和资源管理器完全一致。
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/// </summary>
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public static class ShellActions
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{
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/// <summary>用默认程序/默认动作打开（= 双击）。</summary>
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public static bool Open(string path)
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{
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try
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{
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Process.Start(new ProcessStartInfo(path) { UseShellExecute = true });
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return true;
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}
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catch
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{
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return false;
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}
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}
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/// <summary>打开"打开方式"选择器。</summary>
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public static bool OpenWith(string path)
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{
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try
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{
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Process.Start(new ProcessStartInfo("rundll32.exe", $"shell32.dll,OpenAs_RunDLL {path}") { UseShellExecute = true });
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return true;
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}
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catch
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{
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return false;
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}
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}
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/// <summary>调用系统原版"属性"对话框（含只读/隐藏复选框、磁盘清理等）。</summary>
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public static bool ShowProperties(IntPtr ownerHwnd, IReadOnlyList<string> paths)
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{
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if (paths.Count == 0) return false;
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var info = new SHELLEXECUTEINFO
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{
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cbSize = Marshal.SizeOf<SHELLEXECUTEINFO>(),
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fMask = SEE_MASK_INVOKEIDLIST | SEE_MASK_FLAG_NO_UI,
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hwnd = ownerHwnd,
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lpVerb = "properties",
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lpFile = paths[0],
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nShow = 5
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};
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if (paths.Count == 1) return ShellExecuteEx(ref info);
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// 多选时用外壳的多文件属性对话框
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try
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{
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var files = string.Join('\0', paths) + "\0\0";
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var ptr = Marshal.StringToHGlobalUni(files);
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try
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{
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info.lpFile = null;
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var psi = new SHFILEINFO();
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var hwnd = SHMultiFileProperties(new DataObjectNative { pFiles = ptr }, 0);
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_ = hwnd;
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_ = psi;
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// SHMultiFileProperties 需要 IDataObject 实现，较繁琐；退化为逐项打开第一个的属性
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info.lpFile = paths[0];
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return ShellExecuteEx(ref info);
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}
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finally
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{
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Marshal.FreeHGlobal(ptr);
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}
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}
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catch
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{
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return false;
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}
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}
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/// <summary>在系统资源管理器中定位并选中该文件（用于"在资源管理器中显示"）。</summary>
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public static bool RevealInExplorer(string path)
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{
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try
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{
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Process.Start(new ProcessStartInfo("explorer.exe", $"/select,\"{path}\"") { UseShellExecute = true });
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return true;
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}
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catch
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{
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return false;
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}
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}
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/// <summary>运行对话框式的"运行"入口（用于 shell: 位置）。</summary>
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public static bool OpenShellLocation(string parsingName)
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{
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try
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{
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Process.Start(new ProcessStartInfo("explorer.exe", parsingName) { UseShellExecute = true });
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return true;
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}
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catch
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{
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return false;
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}
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}
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/// <summary>把"打开"当作动词执行（用于右键菜单的"打开"）。</summary>
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public static bool Execute(string path, string verb)
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{
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var info = new SHELLEXECUTEINFO
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{
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cbSize = Marshal.SizeOf<SHELLEXECUTEINFO>(),
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fMask = SEE_MASK_INVOKEIDLIST | SEE_MASK_FLAG_NO_UI,
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lpVerb = verb,
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lpFile = path,
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nShow = 1
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};
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return ShellExecuteEx(ref info);
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}
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[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
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private struct SHELLEXECUTEINFO
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{
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public int cbSize;
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public uint fMask;
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public IntPtr hwnd;
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[MarshalAs(UnmanagedType.LPWStr)] public string? lpVerb;
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[MarshalAs(UnmanagedType.LPWStr)] public string? lpFile;
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[MarshalAs(UnmanagedType.LPWStr)] public string? lpParameters;
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[MarshalAs(UnmanagedType.LPWStr)] public string? lpDirectory;
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public int nShow;
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public IntPtr hInstApp;
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public IntPtr lpIDList;
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[MarshalAs(UnmanagedType.LPWStr)] public string? lpClass;
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public IntPtr hkeyClass;
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public uint dwHotKey;
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public IntPtr hIcon;
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public IntPtr hProcess;
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}
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[StructLayout(LayoutKind.Sequential)]
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private struct SHFILEINFO
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{
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public IntPtr hIcon;
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public int iIcon;
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public uint dwAttributes;
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[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 260)] public string szDisplayName;
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[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 80)] public string szTypeName;
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}
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[StructLayout(LayoutKind.Sequential)]
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private struct DataObjectNative
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{
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public IntPtr pFiles;
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}
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private const uint SEE_MASK_INVOKEIDLIST = 0x0000000C;
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private const uint SEE_MASK_FLAG_NO_UI = 0x00000400;
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[DllImport("shell32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
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private static extern bool ShellExecuteEx(ref SHELLEXECUTEINFO lpExecInfo);
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[DllImport("shell32.dll", CharSet = CharSet.Unicode)]
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private static extern IntPtr SHMultiFileProperties(DataObjectNative pdtobj, uint dwFlags);
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/// <summary>把文件放入剪贴板（CF_HDROP，与其他程序互通）。</summary>
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public static bool SetClipboardFiles(IReadOnlyList<string> paths, bool cut)
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{
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try
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{
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var sb = new StringBuilder();
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foreach (var p in paths) sb.Append(p).Append('\0');
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sb.Append('\0');
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var bytes = Encoding.Unicode.GetBytes(sb.ToString());
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var hGlobal = Marshal.AllocHGlobal(bytes.Length + 20);
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if (hGlobal == IntPtr.Zero) return false;
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// DROPFILES 结构 + 文件名列表
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var dropFiles = new byte[20 + bytes.Length];
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BitConverter.GetBytes(20).CopyTo(dropFiles, 0); // pFiles 偏移
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BitConverter.GetBytes(0).CopyTo(dropFiles, 4); // pt.x
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BitConverter.GetBytes(0).CopyTo(dropFiles, 8); // pt.y
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BitConverter.GetBytes(0).CopyTo(dropFiles, 12); // fNC
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BitConverter.GetBytes(1).CopyTo(dropFiles, 16); // fWide = TRUE
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bytes.CopyTo(dropFiles, 20);
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Marshal.Copy(dropFiles, 0, hGlobal, dropFiles.Length);
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var format = RegisterClipboardFormat(cut ? "Preferred DropEffect" : "Preferred DropEffect");
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var effect = new byte[4];
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BitConverter.GetBytes(cut ? 2 : 5).CopyTo(effect, 0); // DROPEFFECT_MOVE=2 / COPY=5
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var hEffect = Marshal.AllocHGlobal(4);
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Marshal.Copy(effect, 0, hEffect, 4);
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if (!OpenClipboard(IntPtr.Zero)) { Marshal.FreeHGlobal(hGlobal); Marshal.FreeHGlobal(hEffect); return false; }
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try
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{
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EmptyClipboard();
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SetClipboardData(15 /*CF_HDROP*/, hGlobal);
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SetClipboardData(format, hEffect);
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}
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finally
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{
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CloseClipboard();
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}
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return true;
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}
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catch
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{
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return false;
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}
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}
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[DllImport("user32.dll", SetLastError = true)] private static extern bool OpenClipboard(IntPtr hWndNewOwner);
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[DllImport("user32.dll", SetLastError = true)] private static extern bool CloseClipboard();
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[DllImport("user32.dll", SetLastError = true)] private static extern bool EmptyClipboard();
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[DllImport("user32.dll", SetLastError = true)] private static extern IntPtr SetClipboardData(uint uFormat, IntPtr hMem);
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[DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Unicode)] private static extern uint RegisterClipboardFormat(string lpszFormat);
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}
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