Files
MBN_STOCK_WEBVIEW/src/MBN_STOCK_WEBVIEW.LegacyParityApp/MainWindow.BackgroundPicker.cs

369 lines
13 KiB
C#

using System.Runtime.InteropServices;
using WinRT.Interop;
namespace MBN_STOCK_WEBVIEW.LegacyParityApp;
public sealed partial class MainWindow
{
private Task<string?> PickBackgroundFileAsync(string trustedBackgroundDirectory)
{
ArgumentException.ThrowIfNullOrWhiteSpace(trustedBackgroundDirectory);
var initialDirectory = Path.GetFullPath(trustedBackgroundDirectory);
var completion = new TaskCompletionSource<string?>(
TaskCreationOptions.RunContinuationsAsynchronously);
void ShowPicker()
{
try
{
completion.TrySetResult(
LegacyFileDialog.ShowBackgroundFile(
WindowNative.GetWindowHandle(this),
initialDirectory));
}
catch (Exception exception)
{
completion.TrySetException(exception);
}
}
if (DispatcherQueue.HasThreadAccess)
{
ShowPicker();
}
else if (!DispatcherQueue.TryEnqueue(ShowPicker))
{
completion.TrySetException(
new InvalidOperationException("The background picker could not reach the UI thread."));
}
return completion.Task;
}
private Task<string?> PickOperatorFolderAsync(
string? initialDirectory,
string title)
{
ArgumentException.ThrowIfNullOrWhiteSpace(title);
var canonicalInitialDirectory = initialDirectory is null
? null
: Path.GetFullPath(initialDirectory);
var completion = new TaskCompletionSource<string?>(
TaskCreationOptions.RunContinuationsAsynchronously);
void ShowPicker()
{
try
{
completion.TrySetResult(
LegacyFileDialog.ShowFolder(
WindowNative.GetWindowHandle(this),
canonicalInitialDirectory,
title));
}
catch (Exception exception)
{
completion.TrySetException(exception);
}
}
if (DispatcherQueue.HasThreadAccess)
{
ShowPicker();
}
else if (!DispatcherQueue.TryEnqueue(ShowPicker))
{
completion.TrySetException(
new InvalidOperationException("The folder picker could not reach the UI thread."));
}
return completion.Task;
}
private static class LegacyFileDialog
{
private const int CancelledHResult = unchecked((int)0x800704C7);
private const uint FileSystemPathDisplayName = 0x80058000;
private static readonly Guid FileOpenDialogClassId =
new("DC1C5A9C-E88A-4DDE-A5A1-60F82A20AEF7");
public static string? ShowBackgroundFile(nint owner, string initialDirectory)
{
if (owner == nint.Zero || !Directory.Exists(initialDirectory))
{
throw new DirectoryNotFoundException(
"The trusted background directory is unavailable.");
}
IFileDialog? dialog = null;
IShellItem? initialFolder = null;
IShellItem? result = null;
try
{
var dialogType = Type.GetTypeFromCLSID(
FileOpenDialogClassId,
throwOnError: true) ??
throw new InvalidOperationException(
"The Windows file-open dialog is unavailable.");
dialog = (IFileDialog)(Activator.CreateInstance(dialogType) ??
throw new InvalidOperationException(
"The Windows file-open dialog could not be created."));
dialog.GetOptions(out var existingOptions);
dialog.SetOptions(
existingOptions |
FileOpenOptions.NoChangeDirectory |
FileOpenOptions.ForceFileSystem |
FileOpenOptions.PathMustExist |
FileOpenOptions.FileMustExist |
FileOpenOptions.NoDereferenceLinks |
FileOpenOptions.DoNotAddToRecent);
dialog.SetTitle("다음 장면 배경 선택");
dialog.SetOkButtonLabel("선택");
dialog.SetDefaultExtension("vrv");
dialog.SetFileTypes(
3,
new[]
{
new DialogFilter("VRV/JPG/PNG 배경", "*.vrv;*.jpg;*.jpeg;*.png"),
new DialogFilter("VRV 영상", "*.vrv"),
new DialogFilter("JPG/PNG 이미지", "*.jpg;*.jpeg;*.png")
});
dialog.SetFileTypeIndex(1);
var shellItemId = typeof(IShellItem).GUID;
var createResult = SHCreateItemFromParsingName(
initialDirectory,
nint.Zero,
ref shellItemId,
out initialFolder);
Marshal.ThrowExceptionForHR(createResult);
dialog.SetFolder(initialFolder);
dialog.SetDefaultFolder(initialFolder);
var showResult = dialog.Show(owner);
if (showResult == CancelledHResult)
{
return null;
}
Marshal.ThrowExceptionForHR(showResult);
dialog.GetResult(out result);
result.GetDisplayName(FileSystemPathDisplayName, out var pathPointer);
try
{
return Marshal.PtrToStringUni(pathPointer) ??
throw new IOException("The selected background path is unavailable.");
}
finally
{
Marshal.FreeCoTaskMem(pathPointer);
}
}
finally
{
ReleaseComObject(result);
ReleaseComObject(initialFolder);
ReleaseComObject(dialog);
}
}
public static string? ShowFolder(
nint owner,
string? initialDirectory,
string title)
{
if (owner == nint.Zero)
{
throw new InvalidOperationException(
"The folder picker requires an owner window.");
}
if (initialDirectory is not null &&
!Directory.Exists(initialDirectory))
{
throw new DirectoryNotFoundException(
"The initial folder-picker directory is unavailable.");
}
IFileDialog? dialog = null;
IShellItem? initialFolder = null;
IShellItem? result = null;
try
{
var dialogType = Type.GetTypeFromCLSID(
FileOpenDialogClassId,
throwOnError: true) ??
throw new InvalidOperationException(
"The Windows folder dialog is unavailable.");
dialog = (IFileDialog)(Activator.CreateInstance(dialogType) ??
throw new InvalidOperationException(
"The Windows folder dialog could not be created."));
dialog.GetOptions(out var existingOptions);
dialog.SetOptions(
existingOptions |
FileOpenOptions.NoChangeDirectory |
FileOpenOptions.PickFolders |
FileOpenOptions.ForceFileSystem |
FileOpenOptions.PathMustExist |
FileOpenOptions.NoDereferenceLinks |
FileOpenOptions.DoNotAddToRecent);
dialog.SetTitle(title);
dialog.SetOkButtonLabel("폴더 선택");
if (initialDirectory is not null)
{
var shellItemId = typeof(IShellItem).GUID;
var createResult = SHCreateItemFromParsingName(
initialDirectory,
nint.Zero,
ref shellItemId,
out initialFolder);
Marshal.ThrowExceptionForHR(createResult);
dialog.SetFolder(initialFolder);
dialog.SetDefaultFolder(initialFolder);
}
var showResult = dialog.Show(owner);
if (showResult == CancelledHResult)
{
return null;
}
Marshal.ThrowExceptionForHR(showResult);
dialog.GetResult(out result);
result.GetDisplayName(FileSystemPathDisplayName, out var pathPointer);
try
{
return Marshal.PtrToStringUni(pathPointer) ??
throw new IOException("The selected folder path is unavailable.");
}
finally
{
Marshal.FreeCoTaskMem(pathPointer);
}
}
finally
{
ReleaseComObject(result);
ReleaseComObject(initialFolder);
ReleaseComObject(dialog);
}
}
private static void ReleaseComObject(object? value)
{
if (value is not null && Marshal.IsComObject(value))
{
_ = Marshal.FinalReleaseComObject(value);
}
}
[Flags]
private enum FileOpenOptions : uint
{
NoChangeDirectory = 0x00000008,
PickFolders = 0x00000020,
ForceFileSystem = 0x00000040,
PathMustExist = 0x00000800,
FileMustExist = 0x00001000,
NoDereferenceLinks = 0x00100000,
DoNotAddToRecent = 0x02000000
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
private readonly struct DialogFilter(string name, string specification)
{
[MarshalAs(UnmanagedType.LPWStr)]
public readonly string Name = name;
[MarshalAs(UnmanagedType.LPWStr)]
public readonly string Specification = specification;
}
[ComImport]
[Guid("42F85136-DB7E-439C-85F1-E4075D135FC8")]
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
private interface IFileDialog
{
[PreserveSig]
int Show(nint owner);
void SetFileTypes(
uint count,
[MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 0)]
DialogFilter[] filters);
void SetFileTypeIndex(uint index);
void GetFileTypeIndex(out uint index);
void Advise(nint events, out uint cookie);
void Unadvise(uint cookie);
void SetOptions(FileOpenOptions options);
void GetOptions(out FileOpenOptions options);
void SetDefaultFolder(IShellItem folder);
void SetFolder(IShellItem folder);
void GetFolder(out IShellItem folder);
void GetCurrentSelection(out IShellItem item);
void SetFileName([MarshalAs(UnmanagedType.LPWStr)] string name);
void GetFileName([MarshalAs(UnmanagedType.LPWStr)] out string name);
void SetTitle([MarshalAs(UnmanagedType.LPWStr)] string title);
void SetOkButtonLabel([MarshalAs(UnmanagedType.LPWStr)] string text);
void SetFileNameLabel([MarshalAs(UnmanagedType.LPWStr)] string label);
void GetResult(out IShellItem item);
void AddPlace(IShellItem item, uint placement);
void SetDefaultExtension([MarshalAs(UnmanagedType.LPWStr)] string extension);
void Close(int result);
void SetClientGuid(ref Guid guid);
void ClearClientData();
void SetFilter(nint filter);
}
[ComImport]
[Guid("43826D1E-E718-42EE-BC55-A1E261C37BFE")]
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
private interface IShellItem
{
void BindToHandler(
nint bindContext,
ref Guid handlerId,
ref Guid interfaceId,
out nint result);
void GetParent(out IShellItem parent);
void GetDisplayName(uint displayName, out nint name);
void GetAttributes(uint mask, out uint attributes);
void Compare(IShellItem item, uint hint, out int order);
}
[DllImport("shell32.dll", CharSet = CharSet.Unicode, PreserveSig = true)]
private static extern int SHCreateItemFromParsingName(
[MarshalAs(UnmanagedType.LPWStr)] string path,
nint bindContext,
ref Guid interfaceId,
[MarshalAs(UnmanagedType.Interface)] out IShellItem shellItem);
}
}