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LibWeb: Copy various flags from layout node to paintable

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This removes indirection when asking if a paintable is positioned,
floating, etc.

Removes a bunch of 1-1.5% items in the profile when hovering links
on ziglang.org.
This commit is contained in:
Andreas Kling 2024-03-02 11:03:02 +01:00
parent c69b266e43
commit 881e7fcee1
2 changed files with 28 additions and 21 deletions
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30
Userland/Libraries/LibWeb/Painting/Paintable.cpp
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@ -16,6 +16,21 @@ Paintable::Paintable(Layout::Node const& layout_node)
: m_layout_node(layout_node)
, m_browsing_context(const_cast<HTML::BrowsingContext&>(layout_node.browsing_context()))
{
auto& computed_values = layout_node.computed_values();
m_visible = computed_values.visibility() == CSS::Visibility::Visible && computed_values.opacity() != 0;
if (layout_node.is_grid_item() && computed_values.z_index().has_value()) {
// https://www.w3.org/TR/css-grid-2/#z-order
// grid items with z_index should behave as if position were "relative"
m_positioned = true;
} else {
m_positioned = computed_values.position() != CSS::Positioning::Static;
}
m_fixed_position = computed_values.position() == CSS::Positioning::Fixed;
m_absolutely_positioned = computed_values.position() == CSS::Positioning::Absolute;
m_floating = layout_node.is_floating();
m_inline = layout_node.is_inline();
}
Paintable::~Paintable()
@ -33,21 +48,6 @@ void Paintable::visit_edges(Cell::Visitor& visitor)
visitor.visit(m_containing_block.value());
}
bool Paintable::is_visible() const
{
return computed_values().visibility() == CSS::Visibility::Visible && computed_values().opacity() != 0;
}
bool Paintable::is_positioned() const
{
if (layout_node().is_grid_item() && computed_values().z_index().has_value()) {
// https://www.w3.org/TR/css-grid-2/#z-order
// grid items with z_index should behave as if position were "relative"
return true;
}
return computed_values().position() != CSS::Positioning::Static;
}
void Paintable::set_dom_node(JS::GCPtr<DOM::Node> dom_node)
{
m_dom_node = dom_node;