Files
ladybird/Libraries/LibWeb/DOM/PseudoElement.h
Andreas Kling a146225331 LibWeb: Use unsafe layout/paintable accessors where appropriate
Add unsafe_layout_node(), unsafe_paintable(), and unsafe_paintable_box()
accessors that skip layout-staleness verification. These are for use in
contexts where accessing layout/paintable data is legitimate despite
layout not being up to date: tree construction, style recalculation,
painting, animation interpolation, DOM mutation, and invalidation
propagation.

Also add wrapper APIs on Node to centralize common patterns:
- set_needs_display() wraps if (unsafe_paintable()) ...set_needs_display
- set_needs_paint_only_properties_update() wraps similar
- set_needs_layout_update() wraps if (unsafe_layout_node()) ...

And add Document::layout_is_up_to_date() which checks whether layout
tree update flags are all clear.
2026-02-26 21:09:08 +01:00

72 lines
2.6 KiB
C++

/*
* Copyright (c) 2025, Sam Atkins <sam@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/OwnPtr.h>
#include <LibGC/CellAllocator.h>
#include <LibJS/Heap/Cell.h>
#include <LibWeb/CSS/CustomPropertyData.h>
#include <LibWeb/Export.h>
#include <LibWeb/Forward.h>
#include <LibWeb/PixelUnits.h>
#include <LibWeb/TreeNode.h>
namespace Web::DOM {
class WEB_API PseudoElement : public JS::Cell {
GC_CELL(PseudoElement, JS::Cell);
GC_DECLARE_ALLOCATOR(PseudoElement);
GC::Ptr<Layout::NodeWithStyle> layout_node() const { return m_layout_node; }
GC::Ptr<Layout::NodeWithStyle> unsafe_layout_node() const { return m_layout_node; }
void set_layout_node(GC::Ptr<Layout::NodeWithStyle> value) { m_layout_node = value; }
GC::Ptr<CSS::CascadedProperties> cascaded_properties() const { return m_cascaded_properties; }
void set_cascaded_properties(GC::Ptr<CSS::CascadedProperties> value) { m_cascaded_properties = value; }
GC::Ptr<CSS::ComputedProperties> computed_properties() const { return m_computed_properties; }
void set_computed_properties(GC::Ptr<CSS::ComputedProperties> value) { m_computed_properties = value; }
RefPtr<CSS::CustomPropertyData const> custom_property_data() const { return m_custom_property_data; }
void set_custom_property_data(RefPtr<CSS::CustomPropertyData const> value) { m_custom_property_data = move(value); }
bool has_non_empty_counters_set() const { return m_counters_set; }
Optional<CSS::CountersSet const&> counters_set() const;
CSS::CountersSet& ensure_counters_set();
void set_counters_set(OwnPtr<CSS::CountersSet>&&);
CSSPixelPoint scroll_offset() const { return m_scroll_offset; }
void set_scroll_offset(CSSPixelPoint value) { m_scroll_offset = value; }
virtual void visit_edges(JS::Cell::Visitor&) override;
private:
GC::Ptr<Layout::NodeWithStyle> m_layout_node;
GC::Ptr<CSS::CascadedProperties> m_cascaded_properties;
GC::Ptr<CSS::ComputedProperties> m_computed_properties;
RefPtr<CSS::CustomPropertyData const> m_custom_property_data;
OwnPtr<CSS::CountersSet> m_counters_set;
CSSPixelPoint m_scroll_offset {};
};
// https://drafts.csswg.org/css-view-transitions/#pseudo-element-tree
class PseudoElementTreeNode
: public PseudoElement
, public TreeNode<PseudoElementTreeNode> {
GC_CELL(PseudoElementTreeNode, PseudoElement);
GC_DECLARE_ALLOCATOR(PseudoElementTreeNode);
protected:
virtual void visit_edges(JS::Cell::Visitor& visitor) override
{
Base::visit_edges(visitor);
TreeNode::visit_edges(visitor);
}
};
}