Files
ADOFAIRenderer/Util/OS/FolderDialogUtil.cs
T

616 lines
21 KiB
C#

using System;
using System.Diagnostics;
using System.Diagnostics.CodeAnalysis;
using System.IO;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using MelonLoader;
namespace ADOFAIRenderer.Util.OS;
[SuppressMessage("ReSharper", "InconsistentNaming")]
[SuppressMessage("ReSharper", "UnusedMember.Local")]
internal static class FolderDialogUtil
{
private static int _isDialogOpen;
public static void OpenFolderBrowser(string initialDirectory, Action<string?> onSelected)
{
if (Interlocked.CompareExchange(ref _isDialogOpen, 1, 0) != 0)
{
MelonLogger.Msg("[FolderDialogUtil] Folder dialog is already open.");
return;
}
var syncContext = SynchronizationContext.Current;
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
var ownerHandle = GetGameWindowHandle();
var thread = new Thread(() =>
{
string? selected = null;
int oleHr = -1;
try
{
oleHr = OleInitialize(IntPtr.Zero);
selected = OpenWindowsFolderBrowser(initialDirectory, ownerHandle);
}
catch (Exception ex)
{
MelonLogger.Warning($"[FolderDialogUtil] Windows folder dialog error: {ex.Message}");
}
finally
{
if (oleHr >= 0)
{
try
{
OleUninitialize();
}
catch
{
// Ignore uninitialize error
}
}
Interlocked.Exchange(ref _isDialogOpen, 0);
}
DispatchResult(syncContext, onSelected, selected);
})
{
IsBackground = true,
Name = "FolderDialog-Win"
};
thread.SetApartmentState(ApartmentState.STA);
thread.Start();
}
else
{
Task.Run(() =>
{
string? selected = null;
try
{
if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
{
selected = OpenMacFolderBrowser(initialDirectory);
}
else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
{
selected = OpenLinuxFolderBrowser(initialDirectory);
}
}
catch (Exception ex)
{
MelonLogger.Warning($"[FolderDialogUtil] Failed to open folder browser: {ex.Message}");
}
finally
{
Interlocked.Exchange(ref _isDialogOpen, 0);
}
DispatchResult(syncContext, onSelected, selected);
});
}
}
private static void DispatchResult(SynchronizationContext? syncContext, Action<string?> onSelected, string? selected)
{
if (syncContext != null)
{
syncContext.Post(_ =>
{
try
{
onSelected(selected);
}
catch (Exception ex)
{
MelonLogger.Warning($"[FolderDialogUtil] Error in folder selected callback: {ex.Message}");
}
}, null);
}
else
{
try
{
onSelected(selected);
}
catch (Exception ex)
{
MelonLogger.Warning($"[FolderDialogUtil] Error in folder selected callback: {ex.Message}");
}
}
}
#region Windows Implementation
private static readonly Guid CLSID_FileOpenDialog = new("DC1C5A9C-E88A-4DDE-A5A1-60F82A20AEF7");
private static readonly Guid IID_IFileOpenDialog = new("d57c7288-d4ad-4768-be02-9d969532d960");
private static readonly Guid IID_IShellItem = new("43826D1E-E718-42EE-BC55-A1E261C37BFE");
private const int ERROR_CANCELLED_HR = unchecked((int)0x800704C7);
[DllImport("user32.dll")]
private static extern IntPtr GetActiveWindow();
[DllImport("user32.dll")]
private static extern IntPtr GetForegroundWindow();
[DllImport("user32.dll")]
private static extern uint GetWindowThreadProcessId(IntPtr hWnd, out uint lpdwProcessId);
private static IntPtr GetGameWindowHandle()
{
try
{
var active = GetActiveWindow();
if (active != IntPtr.Zero) return active;
var currentPid = (uint)Process.GetCurrentProcess().Id;
var fg = GetForegroundWindow();
if (fg != IntPtr.Zero)
{
GetWindowThreadProcessId(fg, out var fgPid);
if (fgPid == currentPid)
{
return fg;
}
}
var mainHandle = Process.GetCurrentProcess().MainWindowHandle;
if (mainHandle != IntPtr.Zero)
{
return mainHandle;
}
}
catch
{
// Ignore failure to detect window handle
}
return IntPtr.Zero;
}
private static string? OpenWindowsFolderBrowser(string initialDirectory, IntPtr ownerHandle)
{
try
{
return OpenWindowsFolderBrowserModern(initialDirectory, ownerHandle);
}
catch (Exception ex)
{
MelonLogger.Warning($"[FolderDialogUtil] Modern folder dialog failed ({ex.Message}), falling back to legacy dialog.");
return OpenWindowsFolderBrowserLegacy(initialDirectory, ownerHandle);
}
}
private static string? OpenWindowsFolderBrowserModern(string initialDirectory, IntPtr ownerHandle)
{
// 1. Try native CoCreateInstance first (works on Mono and .NET without class registration)
var clsid = CLSID_FileOpenDialog;
var iid = IID_IFileOpenDialog;
int createHr = CoCreateInstance(ref clsid, IntPtr.Zero, 1 /* CLSCTX_INPROC_SERVER */, ref iid, out var dialog);
if (createHr != 0)
{
// 2. Fallback to Activator via Type.GetTypeFromCLSID
var comType = Type.GetTypeFromCLSID(CLSID_FileOpenDialog);
if (comType != null)
{
var instance = Activator.CreateInstance(comType);
dialog = instance as IFileOpenDialog;
}
}
if (dialog == null)
{
throw new COMException("Failed to instantiate IFileOpenDialog via COM.", createHr);
}
try
{
dialog.SetOptions(FOS.FOS_PICKFOLDERS | FOS.FOS_FORCEFILESYSTEM | FOS.FOS_PATHMUSTEXIST);
dialog.SetTitle("Select Output Directory");
if (!string.IsNullOrWhiteSpace(initialDirectory))
{
try
{
var normalized = Path.GetFullPath(initialDirectory).TrimEnd('\\', '/');
if (Directory.Exists(normalized))
{
var shellItemGuid = IID_IShellItem;
int itemHr = SHCreateItemFromParsingName(normalized, IntPtr.Zero, ref shellItemGuid, out var initialItem);
if (itemHr == 0)
{
try
{
dialog.SetFolder(initialItem);
dialog.SetDefaultFolder(initialItem);
}
finally
{
Marshal.ReleaseComObject(initialItem);
}
}
}
}
catch
{
// Ignore failure to set initial folder
}
}
int hr = dialog.Show(ownerHandle);
if (hr != 0 && hr != ERROR_CANCELLED_HR && ownerHandle != IntPtr.Zero)
{
// If Show failed with ownerHandle (e.g. cross-thread or invalid handle), retry without owner
MelonLogger.Msg($"[FolderDialogUtil] dialog.Show(ownerHandle) returned 0x{hr:X8}, retrying with IntPtr.Zero.");
hr = dialog.Show(IntPtr.Zero);
}
if (hr == ERROR_CANCELLED_HR)
{
return null;
}
if (hr != 0)
{
throw new COMException("IFileOpenDialog.Show failed", hr);
}
dialog.GetResult(out var resultItem);
try
{
if (resultItem.GetDisplayName(SIGDN.SIGDN_FILESYSPATH, out var pszPath) == 0 && pszPath != IntPtr.Zero)
{
try
{
var path = Marshal.PtrToStringUni(pszPath);
return !string.IsNullOrEmpty(path) && Directory.Exists(path) ? path : null;
}
finally
{
Marshal.FreeCoTaskMem(pszPath);
}
}
}
finally
{
Marshal.ReleaseComObject(resultItem);
}
return null;
}
finally
{
Marshal.ReleaseComObject(dialog);
}
}
private static string? OpenWindowsFolderBrowserLegacy(string initialDirectory, IntPtr ownerHandle)
{
IntPtr pszDisplayName = Marshal.AllocHGlobal(260 * sizeof(char));
IntPtr initialDirPtr = IntPtr.Zero;
BrowseCallbackProc? callback = null;
IntPtr pidl = IntPtr.Zero;
try
{
var bi = new BROWSEINFO
{
hwndOwner = ownerHandle,
pidlRoot = IntPtr.Zero,
pszDisplayName = pszDisplayName,
lpszTitle = "Select Output Directory",
ulFlags = BIF_RETURNONLYFSDIRS | BIF_NEWDIALOGSTYLE | BIF_EDITBOX
};
if (!string.IsNullOrWhiteSpace(initialDirectory))
{
try
{
var normalized = Path.GetFullPath(initialDirectory).TrimEnd('\\', '/');
if (Directory.Exists(normalized))
{
initialDirPtr = Marshal.StringToHGlobalUni(normalized);
callback = (hwnd, uMsg, _, lpData) =>
{
if (uMsg == BFFM_INITIALIZED && lpData != IntPtr.Zero)
{
SendMessage(hwnd, BFFM_SETSELECTIONW, (IntPtr)1, lpData);
}
return 0;
};
bi.lpfn = callback;
bi.lParam = initialDirPtr;
}
}
catch
{
// Ignore failure to prepare initial directory
}
}
pidl = SHBrowseForFolderW(ref bi);
if (pidl == IntPtr.Zero && ownerHandle != IntPtr.Zero)
{
// If it returned null with ownerHandle, check if retry with IntPtr.Zero is appropriate
// But note: cancelling also returns Zero. We do not redundantly re-prompt if cancelled.
}
if (pidl != IntPtr.Zero)
{
var sb = new StringBuilder(260);
if (SHGetPathFromIDListW(pidl, sb))
{
var path = sb.ToString();
return !string.IsNullOrEmpty(path) && Directory.Exists(path) ? path : null;
}
}
return null;
}
finally
{
if (pidl != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(pidl);
}
if (initialDirPtr != IntPtr.Zero)
{
Marshal.FreeHGlobal(initialDirPtr);
}
if (pszDisplayName != IntPtr.Zero)
{
Marshal.FreeHGlobal(pszDisplayName);
}
GC.KeepAlive(callback);
}
}
#region COM & Win32 Interop Definitions
[Flags]
private enum FOS : uint
{
FOS_NOCHANGEDIR = 0x00000008,
FOS_PICKFOLDERS = 0x00000020,
FOS_FORCEFILESYSTEM = 0x00000040,
FOS_PATHMUSTEXIST = 0x00000800,
FOS_FILEMUSTEXIST = 0x00001000,
}
private enum SIGDN : uint
{
SIGDN_FILESYSPATH = 0x80058000
}
[ComImport]
[Guid("43826D1E-E718-42EE-BC55-A1E261C37BFE")]
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
private interface IShellItem
{
void BindToHandler(IntPtr pbc, [In] ref Guid bhid, [In] ref Guid riid, out IntPtr ppv);
void GetParent(out IShellItem ppsi);
[PreserveSig]
int GetDisplayName(SIGDN sigdnName, out IntPtr ppszName);
void GetAttributes(uint sfgaoMask, out uint psfgaoAttribs);
void Compare(IShellItem psi, uint hint, out int piOrder);
}
[ComImport]
[Guid("d57c7288-d4ad-4768-be02-9d969532d960")]
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
private interface IFileOpenDialog
{
[PreserveSig]
int Show(IntPtr parent);
void SetFileTypes(uint cFileTypes, IntPtr rgFilterSpec);
void SetFileTypeIndex(uint iFileType);
void GetFileTypeIndex(out uint piFileType);
void Advise(IntPtr pfde, out uint pdwCookie);
void Unadvise(uint dwCookie);
void SetOptions(FOS fos);
void GetOptions(out FOS pfos);
void SetDefaultFolder(IShellItem psi);
void SetFolder(IShellItem psi);
void GetFolder(out IShellItem ppsi);
void GetCurrentSelection(out IShellItem ppsi);
void SetFileName([MarshalAs(UnmanagedType.LPWStr)] string pszName);
void GetFileName([MarshalAs(UnmanagedType.LPWStr)] out string pszName);
void SetTitle([MarshalAs(UnmanagedType.LPWStr)] string pszTitle);
void SetOkButtonLabel([MarshalAs(UnmanagedType.LPWStr)] string pszText);
void SetFileNameLabel([MarshalAs(UnmanagedType.LPWStr)] string pszLabel);
void GetResult(out IShellItem ppsi);
void AddPlace(IShellItem psi, int fdap);
void SetDefaultExtension([MarshalAs(UnmanagedType.LPWStr)] string pszDefaultExtension);
void Close(int hr);
void SetClientGuid(ref Guid guid);
void ClearClientData();
void SetFilter(IntPtr pFilter);
void GetResults(out IntPtr ppenum);
void GetSelectedItems(out IntPtr ppsai);
}
[DllImport("ole32.dll", ExactSpelling = true)]
private static extern int OleInitialize(IntPtr pvReserved);
[DllImport("ole32.dll", ExactSpelling = true)]
private static extern void OleUninitialize();
[DllImport("ole32.dll", ExactSpelling = true)]
private static extern int CoCreateInstance(
[In] ref Guid rclsid,
IntPtr pUnkOuter,
uint dwClsContext,
[In] ref Guid riid,
[Out, MarshalAs(UnmanagedType.Interface)] out IFileOpenDialog ppv);
[DllImport("shell32.dll", CharSet = CharSet.Unicode, PreserveSig = true)]
private static extern int SHCreateItemFromParsingName(
[MarshalAs(UnmanagedType.LPWStr)] string pszPath,
IntPtr pbc,
[In] ref Guid riid,
[Out, MarshalAs(UnmanagedType.Interface)] out IShellItem ppv);
private const uint BIF_RETURNONLYFSDIRS = 0x0001;
private const uint BIF_NEWDIALOGSTYLE = 0x0040;
private const uint BIF_EDITBOX = 0x0010;
private const uint BFFM_INITIALIZED = 1;
private const uint BFFM_SETSELECTIONW = 0x0400 + 103;
private delegate int BrowseCallbackProc(IntPtr hwnd, uint uMsg, IntPtr lParam, IntPtr lpData);
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
private struct BROWSEINFO
{
public IntPtr hwndOwner;
public IntPtr pidlRoot;
public IntPtr pszDisplayName;
public string lpszTitle;
public uint ulFlags;
public BrowseCallbackProc? lpfn;
public IntPtr lParam;
public int iImage;
}
[DllImport("shell32.dll", CharSet = CharSet.Unicode)]
private static extern IntPtr SHBrowseForFolderW(ref BROWSEINFO lpbi);
[DllImport("shell32.dll", CharSet = CharSet.Unicode)]
[return: MarshalAs(UnmanagedType.Bool)]
private static extern bool SHGetPathFromIDListW(IntPtr pidl, StringBuilder pszPath);
[DllImport("user32.dll", CharSet = CharSet.Unicode)]
private static extern IntPtr SendMessage(IntPtr hWnd, uint Msg, IntPtr wParam, IntPtr lParam);
#endregion
#endregion
#region macOS Implementation
private static string? OpenMacFolderBrowser(string initialDirectory)
{
try
{
string script;
if (!string.IsNullOrEmpty(initialDirectory) && Directory.Exists(initialDirectory))
{
var escaped = initialDirectory.Replace("\\", "\\\\").Replace("\"", "\\\"");
script = $"POSIX path of (choose folder with prompt \"Select Output Directory\" default location (POSIX file \"{escaped}\"))";
}
else
{
script = "POSIX path of (choose folder with prompt \"Select Output Directory\")";
}
var startInfo = new ProcessStartInfo
{
FileName = "osascript",
CreateNoWindow = true,
UseShellExecute = false,
RedirectStandardOutput = true,
WindowStyle = ProcessWindowStyle.Hidden
};
startInfo.ArgumentList.Add("-e");
startInfo.ArgumentList.Add(script);
using var process = Process.Start(startInfo);
if (process == null) return null;
var output = process.StandardOutput.ReadToEnd().Trim();
process.WaitForExit();
return !string.IsNullOrEmpty(output) && Directory.Exists(output) ? output : null;
}
catch (Exception ex)
{
MelonLogger.Warning($"[FolderDialogUtil] Mac folder dialog error: {ex.Message}");
return null;
}
}
#endregion
#region Linux Implementation
private static string? OpenLinuxFolderBrowser(string initialDirectory)
{
try
{
var startInfo = new ProcessStartInfo
{
FileName = "zenity",
CreateNoWindow = true,
UseShellExecute = false,
RedirectStandardOutput = true,
WindowStyle = ProcessWindowStyle.Hidden
};
startInfo.ArgumentList.Add("--file-selection");
startInfo.ArgumentList.Add("--directory");
startInfo.ArgumentList.Add("--title=Select Output Directory");
if (!string.IsNullOrEmpty(initialDirectory) && Directory.Exists(initialDirectory))
{
startInfo.ArgumentList.Add($"--filename={initialDirectory}");
}
try
{
using var process = Process.Start(startInfo);
if (process != null)
{
var output = process.StandardOutput.ReadToEnd().Trim();
process.WaitForExit();
if (process.ExitCode == 0 && !string.IsNullOrEmpty(output) && Directory.Exists(output))
{
return output;
}
}
}
catch
{
// Fallback to kdialog if zenity fails to start
}
var kdialogInfo = new ProcessStartInfo
{
FileName = "kdialog",
CreateNoWindow = true,
UseShellExecute = false,
RedirectStandardOutput = true,
WindowStyle = ProcessWindowStyle.Hidden
};
kdialogInfo.ArgumentList.Add("--getexistingdirectory");
if (!string.IsNullOrEmpty(initialDirectory) && Directory.Exists(initialDirectory))
{
kdialogInfo.ArgumentList.Add(initialDirectory);
}
kdialogInfo.ArgumentList.Add("--title");
kdialogInfo.ArgumentList.Add("Select Output Directory");
using var kdialogProcess = Process.Start(kdialogInfo);
if (kdialogProcess == null) return null;
var koutput = kdialogProcess.StandardOutput.ReadToEnd().Trim();
kdialogProcess.WaitForExit();
return !string.IsNullOrEmpty(koutput) && Directory.Exists(koutput) ? koutput : null;
}
catch (Exception ex)
{
MelonLogger.Warning($"[FolderDialogUtil] Linux folder dialog error: {ex.Message}");
return null;
}
}
#endregion
}