Fix: Fixed issue where it didn't work to pick files when creating new shortcuts (#14422)

Author: yaira2

src/Files.App/Helpers/Interop/InteropHelpers.cs

@@ -5,6 +5,7 @@
 using Microsoft.UI.Xaml;
 using System.Reflection;
 using System.Runtime.InteropServices;
+using System.Text;
 using Vanara.PInvoke;
 using static Vanara.PInvoke.User32;
 
@@ -73,6 +74,25 @@ public static IntPtr SetWindowLong(HWND hWnd, WindowLongFlags nIndex, IntPtr dwN
 
 		[DllImport("User32.dll")]
 		public extern static short GetKeyState(int n);
+
+		[DllImport("shell32.dll")]
+		public static extern IntPtr SHBrowseForFolder(ref BROWSEINFO lpbi);
+
+		[DllImport("shell32.dll", CharSet = CharSet.Unicode)]
+		public static extern bool SHGetPathFromIDList(IntPtr pidl, [MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszPath);
+
+		[StructLayout(LayoutKind.Sequential)]
+		public struct BROWSEINFO
+		{
+			public IntPtr hwndOwner;
+			public IntPtr pidlRoot;
+			public string pszDisplayName;
+			public string lpszTitle;
+			public uint ulFlags;
+			public IntPtr lpfn;
+			public int lParam;
+			public IntPtr iImage;
+		}
 	}
 
 	[ComImport]

src/Files.App/ViewModels/Dialogs/CreateShortcutDialogViewModel.cs

@@ -1,8 +1,9 @@
 // Copyright (c) 2023 Files Community
 // Licensed under the MIT License. See the LICENSE.
 
-using Files.Core.Extensions;
 using System.IO;
+using System.Runtime.InteropServices;
+using System.Text;
 using System.Windows.Input;
 using Windows.Storage.Pickers;
 
@@ -84,18 +85,27 @@ public CreateShortcutDialogViewModel(string workingDirectory)
 			WorkingDirectory = workingDirectory;
 			_destinationItemPath = string.Empty;
 
-			SelectDestinationCommand = new AsyncRelayCommand(SelectDestinationAsync);
+			SelectDestinationCommand = new AsyncRelayCommand(SelectDestination);
 			PrimaryButtonCommand = new AsyncRelayCommand(CreateShortcutAsync);
 		}
 
-		private async Task SelectDestinationAsync()
+		private Task SelectDestination()
 		{
-			var folderPicker = InitializeWithWindow(new FolderPicker());
-			folderPicker.FileTypeFilter.Add("*");
+			InteropHelpers.BROWSEINFO bi = new InteropHelpers.BROWSEINFO();
+			bi.ulFlags = 0x00004000;
+			bi.lpszTitle = "Select a folder";
+			nint pidl = InteropHelpers.SHBrowseForFolder(ref bi);
+			if (pidl != nint.Zero)
+			{
+				StringBuilder path = new StringBuilder(260);
+				if (InteropHelpers.SHGetPathFromIDList(pidl, path))
+				{
+					DestinationItemPath = path.ToString();
+				}
+				Marshal.FreeCoTaskMem(pidl);
+			}
 
-			var selectedFolder = await folderPicker.PickSingleFolderAsync();
-			if (selectedFolder is not null)
-				DestinationItemPath = selectedFolder.Path;
+			return Task.CompletedTask;
 		}
 
 		private FolderPicker InitializeWithWindow(FolderPicker obj)