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LibWeb/Layout: Reuse create_pseudo_element_if_needed() for ::backdrop

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This commit is contained in:
Sam Atkins 2025-06-18 09:48:09 +01:00
parent 9c656dd7d1
commit 2c7310553a
1 changed files with 4 additions and 24 deletions
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28
Libraries/LibWeb/Layout/TreeBuilder.cpp
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@ -581,30 +581,10 @@ void TreeBuilder::update_layout_tree(DOM::Node& dom_node, TreeBuilder::Context&
for (auto const& top_layer_element : document.top_layer_elements()) {
if (top_layer_element->rendered_in_top_layer()) {
// Each element rendered in the top layer has a ::backdrop pseudo-element, for which it is the originating element.
[&]() {
if (!should_create_layout_node && !top_layer_element->needs_layout_tree_update())
return;
if (top_layer_element->has_inclusive_ancestor_with_display_none())
return;
auto pseudo_element_style = top_layer_element->pseudo_element_computed_properties(CSS::PseudoElement::Backdrop);
if (!pseudo_element_style)
return;
auto pseudo_element_display = pseudo_element_style->display();
auto pseudo_element_node = DOM::Element::create_layout_node_for_display_type(document, pseudo_element_display, *pseudo_element_style, nullptr);
if (!pseudo_element_node)
return;
top_layer_element->set_pseudo_element_node({}, CSS::PseudoElement::Backdrop, pseudo_element_node);
pseudo_element_node->set_generated_for(CSS::PseudoElement::Backdrop, top_layer_element);
insert_node_into_inline_or_block_ancestor(*pseudo_element_node, pseudo_element_display, AppendOrPrepend::Append);
DOM::AbstractElement backdrop_reference { top_layer_element, CSS::PseudoElement::Backdrop };
CSS::resolve_counters(backdrop_reference);
}();
if ((should_create_layout_node || top_layer_element->needs_layout_tree_update())
&& !top_layer_element->has_inclusive_ancestor_with_display_none()) {
create_pseudo_element_if_needed(top_layer_element, CSS::PseudoElement::Backdrop, AppendOrPrepend::Append);
}
update_layout_tree(top_layer_element, context, should_create_layout_node ? MustCreateSubtree::Yes : MustCreateSubtree::No);
}
}