RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-25 06:27:45 +00:00
Code Issues Activity Actions

LibWeb: Avoid style invalidation when entire document has invalid style

Browse source 
If the entire document is invalidated, we know a full style update is
coming soon, and there's no need to try and invalidate a smaller part.

This avoids a *lot* of work on some pages. As an example, we are able to
skip ~1.5 million style invalidations on https://html.spec.whatwg.org/
This commit is contained in:
Andreas Kling 2024-01-13 11:38:30 +01:00
parent de32b77ceb
commit c3059701b0
1 changed files with 5 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

5
Userland/Libraries/LibWeb/DOM/Node.cpp
View file

@ -261,6 +261,11 @@ void Node::invalidate_style()
return;
}
// If the document is already marked for a full style update, there's no need to do anything here.
if (document().needs_full_style_update()) {
return;
}
for_each_in_inclusive_subtree([&](Node& node) {
node.m_needs_style_update = true;
if (node.has_children())