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LibWeb: Don't look for animations to activate in disconnected subtrees
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Knocks down a 3.3% profile item to 1.6% on Speedometer 3.
This commit is contained in:
Andreas Kling 2025-04-20 16:30:19 +02:00 • committed by Andreas Kling
commit a122685896
Notes: github-actions[bot] 2025-04-20 16:44:09 +00:00
1 changed files with 4 additions and 0 deletions
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4
Libraries/LibWeb/DOM/Node.cpp
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@ -2937,6 +2937,10 @@ bool Node::has_inclusive_ancestor_with_display_none()
void Node::play_or_cancel_animations_after_display_property_change()
{
// OPTIMIZATION: We don't care about animations in disconnected subtrees.
if (!is_connected())
return;
// https://www.w3.org/TR/css-animations-1/#animations
// Setting the display property to none will terminate any running animation applied to the element and its descendants.
// If an element has a display of none, updating display to a value other than none will start all animations applied to