Merge pull request #1561 from cefsharp/fix/support-drag-drop-from-input-fields

Added support for drag & drop from input fields

Author: perlun

CefSharp.Wpf/Internals/WpfExtensions.cs

@@ -2,11 +2,12 @@
 //
 // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
 
+using CefSharp.Internals;
+using System;
 using System.IO;
 using System.Text;
 using System.Windows;
 using System.Windows.Input;
-using CefSharp.Internals;
 
 namespace CefSharp.Wpf.Internals
 {
@@ -115,7 +116,12 @@ public static CefDragDataWrapper GetDragDataWrapper(this DragEventArgs e)
             if (dragData.IsFragment)
             {
                 dragData.FragmentText = (string)e.Data.GetData(DataFormats.Text);
-                dragData.FragmentHtml = (string)e.Data.GetData(DataFormats.Html);
+
+                var htmlData = (string)e.Data.GetData(DataFormats.Html);
+                if (htmlData != String.Empty)
+                {
+                    dragData.FragmentHtml = htmlData;
+                }
             }
 
             return dragData;