From 7021ee14cfd3b46c2846b1d022f2430a4a44a24e Mon Sep 17 00:00:00 2001
From: Peter Stockings <pstockings@jadeworld.com>
Date: Sat, 25 Mar 2023 20:25:22 +1100
Subject: [PATCH] Fix issue where screen would eventually turn off if you
 switched apps and then came back

---
 templates/new_workout.html | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/templates/new_workout.html b/templates/new_workout.html
index ababee8..cc1ccb1 100644
--- a/templates/new_workout.html
+++ b/templates/new_workout.html
@@ -109,10 +109,11 @@
             let previousReadingTime = null;
 
             let screenLock;
-            navigator.wakeLock.request('screen')
-                .then(lock => {
-                    screenLock = lock;
-                });
+            document.addEventListener('visibilitychange', async () => {
+                if (screenLock !== null && document.visibilityState === 'visible') {
+                    screenLock = await navigator.wakeLock.request('screen');
+                }
+            });
 
             const integerNumber = (num) => parseInt(num);
             const decimalNumber = (num) => parseFloat(num.toFixed(1));