From 50dad6006e63d21db18ea5bb0880c260d9a24ed0 Mon Sep 17 00:00:00 2001
From: ccd0 <admin@containerchan.org>
Date: Sat, 3 Nov 2018 03:51:28 -0700
Subject: [PATCH] Make `Scroll to Last Read Post` operate in index if `Unread
 Line in Index` enabled.

---
 src/Monitoring/UnreadIndex.coffee | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/Monitoring/UnreadIndex.coffee b/src/Monitoring/UnreadIndex.coffee
index b890b68e5..5a97d32d2 100644
--- a/src/Monitoring/UnreadIndex.coffee
+++ b/src/Monitoring/UnreadIndex.coffee
@@ -34,7 +34,10 @@ UnreadIndex =
     return if e.target is Index.root # onIndexRefresh handles this case
     thread = Get.threadFromNode e.target
     return if !thread or thread.nodes.root isnt e.target
+    wasVisible = !!UnreadIndex.hr[thread.fullID]?.parentNode
     UnreadIndex.update thread
+    if Conf['Scroll to Last Read Post'] and !wasVisible and !!UnreadIndex.hr[thread.fullID]?.parentNode
+      Header.scrollToIfNeeded UnreadIndex.hr[thread.fullID], true
 
   sync: ->
     g.threads.forEach (thread) ->