From be4645b6ecc493d2051906f9262e3cd6fc1f6fcc Mon Sep 17 00:00:00 2001
From: Bramus <bramus@bram.us>
Date: Thu, 28 Dec 2023 23:11:09 +0100
Subject: [PATCH] Use cached sourceMeasurements instead of recomputing style

---
 src/scroll-timeline-base.js | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/scroll-timeline-base.js b/src/scroll-timeline-base.js
index 798f46f4..1f8d91e8 100644
--- a/src/scroll-timeline-base.js
+++ b/src/scroll-timeline-base.js
@@ -481,11 +481,10 @@ export class ScrollTimeline {
   // Calculate the fractional offset of a range value relative to the full range.
   relativePosition(value, details) {
     const { axis, source } = details.timeline;
+    const { sourceMeasurements } = sourceDetails.get(source);
 
-    // @TODO: Make use of sourceMeasurements here, yet these don’t seem to be stored
-    const style = getComputedStyle(source);
     let sourceScrollDistance = undefined;
-    if (normalizeAxis(axis, style) === 'x') {
+    if (normalizeAxis(axis, sourceMeasurements) === 'x') {
       sourceScrollDistance = source.scrollWidth;
     } else {
       sourceScrollDistance = source.scrollHeight;