From 8e481f65f598759314fcccf3eaf6dacc7eb16e72 Mon Sep 17 00:00:00 2001
From: Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
Date: Mon, 3 Mar 2025 20:09:42 +0100
Subject: [PATCH] LibWeb: Don't invalidate style of finished animations

Removes lots of completely unnecessary work, especially when animated
property affects layout.
---
 Libraries/LibWeb/DOM/Document.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Libraries/LibWeb/DOM/Document.cpp b/Libraries/LibWeb/DOM/Document.cpp
index c6987c8b555..67137bb6492 100644
--- a/Libraries/LibWeb/DOM/Document.cpp
+++ b/Libraries/LibWeb/DOM/Document.cpp
@@ -1529,6 +1529,8 @@ void Document::update_animated_style_if_needed()
         }
 
         for (auto& animation : timeline->associated_animations()) {
+            if (animation->is_finished())
+                continue;
             if (auto effect = animation->effect())
                 effect->update_computed_properties();
         }