From 223956a206f217e4d6ed5e2abfb1b0558b336414 Mon Sep 17 00:00:00 2001
From: Bruno Windels <brunow@matrix.org>
Date: Tue, 3 Mar 2020 15:42:44 +0100
Subject: [PATCH] add comment how offset from bottom is calculated

---
 src/components/structures/ScrollPanel.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/components/structures/ScrollPanel.js b/src/components/structures/ScrollPanel.js
index 72d5330451..548dd70748 100644
--- a/src/components/structures/ScrollPanel.js
+++ b/src/components/structures/ScrollPanel.js
@@ -765,6 +765,7 @@ export default createReactClass({
     },
 
     _topFromBottom(node) {
+        // current capped height - distance from top = distance from bottom of container to top of tracked element
         return this._itemlist.current.clientHeight - node.offsetTop;
     },