From 5cfc3da6c0ec60bf9b007ac21b2909adbbcdbf94 Mon Sep 17 00:00:00 2001
From: "Simon (darkside) Jackson" <darkside@zenithmoon.com>
Date: Thu, 22 Oct 2020 01:38:49 +0100
Subject: [PATCH] Added the programmatic capability to change the parent scroll
 rect on the ScrollConflictManager at runtime.

---
 .../Utilities/ScrollConflictManager.cs        | 25 ++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/Runtime/Scripts/Utilities/ScrollConflictManager.cs b/Runtime/Scripts/Utilities/ScrollConflictManager.cs
index c66788d..e202a72 100644
--- a/Runtime/Scripts/Utilities/ScrollConflictManager.cs
+++ b/Runtime/Scripts/Utilities/ScrollConflictManager.cs
@@ -18,7 +18,7 @@ namespace UnityEngine.UI.Extensions
         public ScrollRect ParentScrollRect;
 
         [Tooltip("The parent ScrollSnap control hosting this Scroll Snap.\nIf left empty, it will use the ScrollSnap of the ParentScrollRect")]
-        public ScrollSnapBase ParentScrollSnap;
+        private ScrollSnapBase ParentScrollSnap;
 
         private ScrollRect _myScrollRect;
         private IBeginDragHandler[] _beginDragHandlers;
@@ -30,6 +30,14 @@ namespace UnityEngine.UI.Extensions
         private bool scrollOtherHorizontally;
 
         void Awake()
+        {
+            if (ParentScrollRect)
+            {
+                InitialiseConflictManager();
+            }
+        }
+
+        private void InitialiseConflictManager()
         {
             //Get the current scroll rect so we can disable it if the other one is scrolling
             _myScrollRect = this.GetComponent<ScrollRect>();
@@ -55,12 +63,27 @@ namespace UnityEngine.UI.Extensions
         }
 
         void Start()
+        {
+            if (ParentScrollRect)
+            {
+                AssignScrollRectHandlers();
+            }
+        }
+
+        private void AssignScrollRectHandlers()
         {
             _beginDragHandlers = ParentScrollRect.GetComponents<IBeginDragHandler>();
             _dragHandlers = ParentScrollRect.GetComponents<IDragHandler>();
             _endDragHandlers = ParentScrollRect.GetComponents<IEndDragHandler>();
         }
 
+        public void SetParentScrollRect(ScrollRect parentScrollRect)
+        {
+            ParentScrollRect = parentScrollRect;
+            InitialiseConflictManager();
+            AssignScrollRectHandlers();
+        }
+
         #region DragHandler
 
         public void OnBeginDrag(PointerEventData eventData)