chore: Adjustments for logic

Author: MartinZikmund

src/Uno.UI.Runtime.Skia.Win32/ApplicationMode/DataTransfer/DragDrop/Win32DragDropExtension.cs

@@ -209,12 +209,13 @@ unsafe HRESULT IDropTarget.Interface.Drop(IDataObject* dataObject, MODIFIERKEYS_
 
 	private static unsafe DragUI? CreateDragUIForExternalDrag(IDataObject* dataObject, FORMATETC[] formatEtcList)
 	{
-		var dragUI = new DragUI(PointerDeviceType.Mouse);
+		var dragUI = new DragUI();
 
 		// Check if we have a DIB (Device Independent Bitmap) format
-		var dibFormat = formatEtcList.FirstOrDefault(f => f.cfFormat == (int)CLIPBOARD_FORMAT.CF_DIB);
-		if (dibFormat.cfFormat != 0)
+		var dibFormatIndex = Array.FindIndex(formatEtcList, f => f.cfFormat == (int)CLIPBOARD_FORMAT.CF_DIB);
+		if (dibFormatIndex >= 0)
 		{
+			var dibFormat = formatEtcList[dibFormatIndex];
 			// Try to get the DIB data directly
 			var hResult = dataObject->GetData(dibFormat, out STGMEDIUM dibMedium);
 			if (hResult.Succeeded && dibMedium.u.hGlobal != IntPtr.Zero)
@@ -228,6 +229,15 @@ unsafe HRESULT IDropTarget.Interface.Drop(IDataObject* dataObject, MODIFIERKEYS_
 						return dragUI;
 					}
 				}
+				catch (Exception ex)
+				{
+					// If we can't load the image, continue without visual feedback
+					var logger = typeof(Win32DragDropExtension).Log();
+					if (logger.IsEnabled(LogLevel.Debug))
+					{
+						logger.LogDebug($"Failed to load image thumbnail for drag operation: {ex.Message}");
+					}
+				}
 				finally
 				{
 					PInvoke.ReleaseStgMedium(&dibMedium);
@@ -236,9 +246,10 @@ unsafe HRESULT IDropTarget.Interface.Drop(IDataObject* dataObject, MODIFIERKEYS_
 		}
 
 		// Check if we have file drop format
-		var hdropFormat = formatEtcList.FirstOrDefault(f => f.cfFormat == (int)CLIPBOARD_FORMAT.CF_HDROP);
-		if (hdropFormat.cfFormat != 0)
+		var hdropFormatIndex = Array.FindIndex(formatEtcList, f => f.cfFormat == (int)CLIPBOARD_FORMAT.CF_HDROP);
+		if (hdropFormatIndex >= 0)
 		{
+			var hdropFormat = formatEtcList[hdropFormatIndex];
 			// Try to get the HDROP data directly
 			var hResult = dataObject->GetData(hdropFormat, out STGMEDIUM hdropMedium);
 			if (hResult.Succeeded && hdropMedium.u.hGlobal != IntPtr.Zero)

src/Uno.UI/UI/Xaml/DragDrop/DragUI.cs

@@ -18,7 +18,7 @@ internal DragUI(PointerDeviceType pointerDeviceType)
 			PointerDeviceType = pointerDeviceType;
 		}
 
-		internal PointerDeviceType PointerDeviceType { get; }
+		internal PointerDeviceType? PointerDeviceType { get; }
 
 		internal ImageSource? Content { get; set; }