From 917c41dfa03779b8207aa81f975b0395be645929 Mon Sep 17 00:00:00 2001
From: Travis Ralston <travpc@gmail.com>
Date: Mon, 13 Jul 2020 20:08:12 -0600
Subject: [PATCH] Update sticky headers when breadcrumbs pop in or out

Fixes https://github.com/vector-im/riot-web/issues/14455
---
 src/components/structures/LeftPanel2.tsx | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/components/structures/LeftPanel2.tsx b/src/components/structures/LeftPanel2.tsx
index 58cf665430..9d836ddec3 100644
--- a/src/components/structures/LeftPanel2.tsx
+++ b/src/components/structures/LeftPanel2.tsx
@@ -111,6 +111,10 @@ export default class LeftPanel2 extends React.Component<IProps, IState> {
         const newVal = BreadcrumbsStore.instance.visible;
         if (newVal !== this.state.showBreadcrumbs) {
             this.setState({showBreadcrumbs: newVal});
+
+            // Update the sticky headers too as the breadcrumbs will be popping in or out.
+            if (!this.listContainerRef.current) return; // ignore: no headers to sticky
+            this.handleStickyHeaders(this.listContainerRef.current);
         }
     };