From 69ebf47cb52ef834d35972f2c4dad5bcafde4ca4 Mon Sep 17 00:00:00 2001
From: DispatchCommit <dispatchcommit@gmail.com>
Date: Sun, 4 Apr 2021 02:53:58 -0700
Subject: [PATCH] fix scrolling issue, limit length of chat history

---
 ui/component/livestreamComments/index.js | 2 +-
 ui/component/livestreamComments/view.jsx | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/ui/component/livestreamComments/index.js b/ui/component/livestreamComments/index.js
index 3c7b7a862..3e183e691 100644
--- a/ui/component/livestreamComments/index.js
+++ b/ui/component/livestreamComments/index.js
@@ -7,7 +7,7 @@ import LivestreamFeed from './view';
 
 const select = (state, props) => ({
   claim: makeSelectClaimForUri(props.uri)(state),
-  comments: makeSelectTopLevelCommentsForUri(props.uri)(state),
+  comments: makeSelectTopLevelCommentsForUri(props.uri)(state).slice(0, 25),
   fetchingComments: selectIsFetchingComments(state),
 });
 
diff --git a/ui/component/livestreamComments/view.jsx b/ui/component/livestreamComments/view.jsx
index 2e20145f8..2cc7ef918 100644
--- a/ui/component/livestreamComments/view.jsx
+++ b/ui/component/livestreamComments/view.jsx
@@ -54,7 +54,7 @@ export default function LivestreamFeed(props: Props) {
     function handleScroll() {
       if (element) {
         const scrollHeight = element.scrollHeight - element.offsetHeight;
-        const isAtBottom = scrollHeight === element.scrollTop;
+        const isAtBottom = scrollHeight <= element.scrollTop + 100;
 
         if (!isAtBottom) {
           hasScrolledComments.current = true;
@@ -71,7 +71,7 @@ export default function LivestreamFeed(props: Props) {
         // Only update comment scroll if the user hasn't scrolled up to view old comments
         // If they have, do nothing
         if (!hasScrolledComments.current || !performedInitialScroll) {
-          element.scrollTop = element.scrollHeight - element.offsetHeight;
+          setTimeout(() => (element.scrollTop = element.scrollHeight - element.offsetHeight + 100), 20);
 
           if (!performedInitialScroll) {
             setPerformedInitialScroll(true);