Fix: Fixed drag and drop (#11728)

Author: hishitetsu

src/Files.App/BaseLayout.cs

@@ -26,17 +26,21 @@
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Diagnostics;
+using System.IO;
 using System.Linq;
 using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices.ComTypes;
 using System.Threading;
 using System.Threading.Tasks;
+using Vanara.PInvoke;
 using Windows.ApplicationModel.DataTransfer;
 using Windows.ApplicationModel.DataTransfer.DragDrop;
 using Windows.Foundation;
 using Windows.Foundation.Collections;
 using Windows.Storage;
 using Windows.System;
 using static Files.App.Helpers.PathNormalization;
+using VA = Vanara.Windows.Shell;
 using DispatcherQueueTimer = Microsoft.UI.Dispatching.DispatcherQueueTimer;
 using SortDirection = Files.Shared.Enums.SortDirection;
 
@@ -875,11 +879,27 @@ protected virtual void Page_CharacterReceived(UIElement sender, CharacterReceive
 		protected void FileList_DragItemsStarting(object sender, DragItemsStartingEventArgs e)
 		{
 			SelectedItems!.AddRange(e.Items.OfType<ListedItem>());
+
 			try
 			{
-				// Only support IStorageItem capable paths
-				var itemList = e.Items.OfType<ListedItem>().Where(x => !(x.IsHiddenItem && x.IsLinkItem && x.IsRecycleBinItem && x.IsShortcut)).Select(x => VirtualStorageItem.FromListedItem(x));
-				e.Data.SetStorageItems(itemList, false);
+				var shellItemList = e.Items.OfType<ListedItem>().Select(x => new VA.ShellItem(x.ItemPath)).ToArray();
+				if (shellItemList[0].FileSystemPath is not null)
+				{
+					var iddo = shellItemList[0].Parent.GetChildrenUIObjects<IDataObject>(HWND.NULL, shellItemList);
+					shellItemList.ForEach(x => x.Dispose());
+					var format = System.Windows.Forms.DataFormats.GetFormat("Shell IDList Array");
+					if (iddo.TryGetData<byte[]>((uint)format.Id, out var data))
+					{
+						var mem = new MemoryStream(data).AsRandomAccessStream();
+						e.Data.SetData(format.Name, mem);
+					}
+				}
+				else
+				{
+					// Only support IStorageItem capable paths
+					var storageItemList = e.Items.OfType<ListedItem>().Where(x => !(x.IsHiddenItem && x.IsLinkItem && x.IsRecycleBinItem && x.IsShortcut)).Select(x => VirtualStorageItem.FromListedItem(x));
+					e.Data.SetStorageItems(storageItemList, false);
+				}
 			}
 			catch (Exception)
 			{