From 10cdbc8fbc1fab67b0dbcac39afd1c88b02a0af9 Mon Sep 17 00:00:00 2001
From: stefnotch <brandmairstefan@gmail.com>
Date: Mon, 4 Jan 2021 12:33:29 +0100
Subject: [PATCH] Add dragging existing connection from input box

---
 Source/Editor/Surface/Elements/Box.cs | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/Source/Editor/Surface/Elements/Box.cs b/Source/Editor/Surface/Elements/Box.cs
index 886ab1e37..9be0dfd97 100644
--- a/Source/Editor/Surface/Elements/Box.cs
+++ b/Source/Editor/Surface/Elements/Box.cs
@@ -565,7 +565,18 @@ namespace FlaxEditor.Surface.Elements
             {
                 _isMouseDown = false;
                 if (Surface.CanEdit)
-                    Surface.ConnectingStart(this);
+                {
+                    if (!IsOutput && HasSingleConnection)
+                    {
+                        var inputBox = Connections[0];
+                        BreakConnection(inputBox);
+                        Surface.ConnectingStart(inputBox);
+                    }
+                    else
+                    {
+                        Surface.ConnectingStart(this);
+                    }
+                }
             }
             base.OnMouseLeave();
         }