From 00c81ad85bef1a702485eb5fcd859b080efcc656 Mon Sep 17 00:00:00 2001
From: Robin Townsend <robin@robin.town>
Date: Fri, 21 Jul 2023 12:12:44 -0400
Subject: [PATCH] Add comments

---
 src/useWakeLock.ts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/useWakeLock.ts b/src/useWakeLock.ts
index 5a8ccb6e..f4af4c52 100644
--- a/src/useWakeLock.ts
+++ b/src/useWakeLock.ts
@@ -26,10 +26,14 @@ export const useWakeLock = () => {
       let mounted = true;
       let lock: WakeLockSentinel | null = null;
 
+      // The lock is automatically released whenever the window goes invisible,
+      // so we need to reacquire it on visiblity changes
       const onVisiblityChange = async () => {
         if (document.visibilityState === "visible") {
           try {
             lock = await navigator.wakeLock.request("screen");
+            // Handle the edge case where this component unmounts before the
+            // promise resolves
             if (!mounted)
               lock
                 .release()