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LibWeb: Copy various flags from layout node to paintable

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

View file

@ -16,6 +16,21 @@ Paintable::Paintable(Layout::Node const& layout_node)
: m_layout_node(layout_node) : m_layout_node(layout_node)
, m_browsing_context(const_cast<HTML::BrowsingContext&>(layout_node.browsing_context())) , 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() Paintable::~Paintable()
@ -33,21 +48,6 @@ void Paintable::visit_edges(Cell::Visitor& visitor)
visitor.visit(m_containing_block.value()); 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) void Paintable::set_dom_node(JS::GCPtr<DOM::Node> dom_node)
{ {
m_dom_node = dom_node; m_dom_node = dom_node;

View file

@ -56,12 +56,12 @@ class Paintable
public: public:
virtual ~Paintable(); virtual ~Paintable();
[[nodiscard]] bool is_visible() const; [[nodiscard]] bool is_visible() const { return m_visible; }
[[nodiscard]] bool is_positioned() const; [[nodiscard]] bool is_positioned() const { return m_positioned; }
[[nodiscard]] bool is_fixed_position() const { return layout_node().is_fixed_position(); } [[nodiscard]] bool is_fixed_position() const { return m_fixed_position; }
[[nodiscard]] bool is_absolutely_positioned() const { return layout_node().is_absolutely_positioned(); } [[nodiscard]] bool is_absolutely_positioned() const { return m_absolutely_positioned; }
[[nodiscard]] bool is_floating() const { return layout_node().is_floating(); } [[nodiscard]] bool is_floating() const { return m_floating; }
[[nodiscard]] bool is_inline() const { return layout_node().is_inline(); } [[nodiscard]] bool is_inline() const { return m_inline; }
[[nodiscard]] CSS::Display display() const { return layout_node().display(); } [[nodiscard]] CSS::Display display() const { return layout_node().display(); }
template<typename U, typename Callback> template<typename U, typename Callback>
@ -217,6 +217,13 @@ private:
Optional<JS::GCPtr<PaintableBox>> mutable m_containing_block; Optional<JS::GCPtr<PaintableBox>> mutable m_containing_block;
OwnPtr<StackingContext> m_stacking_context; OwnPtr<StackingContext> m_stacking_context;
bool m_visible : 1 { false };
bool m_positioned : 1 { false };
bool m_fixed_position : 1 { false };
bool m_absolutely_positioned : 1 { false };
bool m_floating : 1 { false };
bool m_inline : 1 { false };
}; };
inline DOM::Node* HitTestResult::dom_node() inline DOM::Node* HitTestResult::dom_node()