Code Quality: Merged all interop into Win32PInvoke (#15209)

Author: 0x5bfa

src/Files.App/Data/Models/ItemViewModel.cs

@@ -20,7 +20,7 @@
 using Windows.Storage.FileProperties;
 using Windows.Storage.Search;
 using static Files.App.Helpers.Win32PInvoke;
-using static Files.App.Helpers.NativeFindStorageItemHelper;
+using static Files.App.Helpers.Win32Helper;
 using DispatcherQueue = Microsoft.UI.Dispatching.DispatcherQueue;
 using FileAttributes = System.IO.FileAttributes;
 
@@ -680,7 +680,7 @@ void ClearDisplay()
 						DirectoryInfoUpdated?.Invoke(this, EventArgs.Empty);
 					}
 
-					if (NativeWinApiHelper.IsHasThreadAccessPropertyPresent && dispatcherQueue.HasThreadAccess)
+					if (Win32Helper.IsHasThreadAccessPropertyPresent && dispatcherQueue.HasThreadAccess)
 						ClearDisplay();
 					else
 						await dispatcherQueue.EnqueueOrInvokeAsync(ClearDisplay);
@@ -768,7 +768,7 @@ void OrderEntries()
 					folderSettings.SortDirectoriesAlongsideFiles, folderSettings.SortFilesFirst));
 			}
 
-			if (NativeWinApiHelper.IsHasThreadAccessPropertyPresent && dispatcherQueue.HasThreadAccess)
+			if (Win32Helper.IsHasThreadAccessPropertyPresent && dispatcherQueue.HasThreadAccess)
 				return Task.Run(OrderEntries);
 
 			OrderEntries();
@@ -1865,8 +1865,8 @@ await dispatcherQueue.EnqueueOrInvokeAsync(() =>
 		private void WatchForDirectoryChanges(string path, CloudDriveSyncStatus syncStatus)
 		{
 			Debug.WriteLine($"WatchForDirectoryChanges: {path}");
-			var hWatchDir = NativeFileOperationsHelper.CreateFileFromApp(path, 1, 1 | 2 | 4,
-				IntPtr.Zero, 3, (uint)NativeFileOperationsHelper.File_Attributes.BackupSemantics | (uint)NativeFileOperationsHelper.File_Attributes.Overlapped, IntPtr.Zero);
+			var hWatchDir = Win32PInvoke.CreateFileFromApp(path, 1, 1 | 2 | 4,
+				IntPtr.Zero, 3, (uint)Win32PInvoke.File_Attributes.BackupSemantics | (uint)Win32PInvoke.File_Attributes.Overlapped, IntPtr.Zero);
 			if (hWatchDir.ToInt64() == -1)
 				return;
 
@@ -1974,13 +1974,13 @@ private void WatchForDirectoryChanges(string path, CloudDriveSyncStatus syncStat
 
 		private void WatchForGitChanges()
 		{
-			var hWatchDir = NativeFileOperationsHelper.CreateFileFromApp(
+			var hWatchDir = Win32PInvoke.CreateFileFromApp(
 				GitDirectory!,
 				1,
 				1 | 2 | 4,
 				IntPtr.Zero,
 				3,
-				(uint)NativeFileOperationsHelper.File_Attributes.BackupSemantics | (uint)NativeFileOperationsHelper.File_Attributes.Overlapped,
+				(uint)Win32PInvoke.File_Attributes.BackupSemantics | (uint)Win32PInvoke.File_Attributes.Overlapped,
 				IntPtr.Zero);
 
 			if (hWatchDir.ToInt64() == -1)
@@ -2226,7 +2226,7 @@ private async Task AddFileOrFolderAsync(ListedItem? item)
 				if (UserSettingsService.FoldersSettingsService.AreAlternateStreamsVisible)
 				{
 					// New file added, enumerate ADS
-					foreach (var ads in NativeFileOperationsHelper.GetAlternateStreams(item.ItemPath))
+					foreach (var ads in Win32Helper.GetAlternateStreams(item.ItemPath))
 					{
 						var adsItem = Win32StorageEnumerator.GetAlternateStream(ads, item);
 						filesAndFolders.Add(adsItem);

src/Files.App/Extensions/Win32FindDataExtensions.cs

@@ -1,15 +1,15 @@
 // Copyright (c) 2024 Files Community
 // Licensed under the MIT License. See the LICENSE.
 
-using static Files.App.Helpers.NativeFindStorageItemHelper;
+using static Files.App.Helpers.Win32Helper;
 
 namespace Files.App.Extensions
 {
 	public static class Win32FindDataExtensions
 	{
 		private const long MAX_DWORD = 4294967295;
 
-		public static long GetSize(this WIN32_FIND_DATA findData)
+		public static long GetSize(this Win32PInvoke.WIN32_FIND_DATA findData)
 		{
 			long fDataFSize = findData.nFileSizeLow;
 

src/Files.App/Helpers/Environment/ElevationHelpers.cs

@@ -8,15 +8,12 @@ namespace Files.App.Helpers
 {
 	public static class ElevationHelpers
 	{
-		[DllImport("shell32.dll", EntryPoint = "#865", CharSet = CharSet.Unicode, SetLastError = true)]
-		[return: MarshalAs(UnmanagedType.Bool)] private static extern bool _IsElevationRequired([MarshalAs(UnmanagedType.LPWStr)] string pszPath);
-
 		public static bool IsElevationRequired(string filePath)
 		{
 			if (string.IsNullOrEmpty(filePath))
 				return false;
 
-			return _IsElevationRequired(filePath);
+			return Win32PInvoke._IsElevationRequired(filePath);
 		}
 
 		public static bool IsAppRunAsAdmin()