From 7f33e4886d711dcb4f99d66ec5cc61328813a725 Mon Sep 17 00:00:00 2001
From: ale <alexander.palma@usach.cl>
Date: Mon, 15 Aug 2022 19:52:20 -0400
Subject: [PATCH] Fix #17544: Placement rule in Invention List window does not
 move

---
 src/openrct2-ui/windows/EditorInventionsList.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/openrct2-ui/windows/EditorInventionsList.cpp b/src/openrct2-ui/windows/EditorInventionsList.cpp
index de479ff7b0..1be94fea55 100644
--- a/src/openrct2-ui/windows/EditorInventionsList.cpp
+++ b/src/openrct2-ui/windows/EditorInventionsList.cpp
@@ -509,6 +509,12 @@ public:
         return item == _selectedResearchItem;
     }
 
+    // hack to fix #17544: OnScrollMouseOver never gets called while dragging
+    void SetSelectedResearchItem(ResearchItem* item)
+    {
+        _selectedResearchItem = item;
+    }
+
     void MoveResearchItem(const ResearchItem& item, ResearchItem* beforeItem, bool isInvented)
     {
         _selectedResearchItem = nullptr;
@@ -597,6 +603,7 @@ public:
             auto* research = res.has_value() ? res->research : nullptr;
             if (!inventionListWindow->IsResearchItemSelected(research))
             {
+                inventionListWindow->SetSelectedResearchItem(research);
                 inventionListWindow->Invalidate();
             }
         }