ladybird/Libraries/LibWeb/CSS/StyleValues/PositionStyleValue.h
Callum Law ed2909674f LibWeb: Add computationally independent check for custom properties
Registered custom properties only accept "computationally independent"
values for their initial value
2026-03-26 01:11:39 +00:00

52 lines
2.4 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <andreas@ladybird.org>
* Copyright (c) 2021, Tobias Christiansen <tobyase@serenityos.org>
* Copyright (c) 2021-2023, Sam Atkins <atkinssj@serenityos.org>
* Copyright (c) 2022-2023, MacDue <macdue@dueutil.tech>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibWeb/CSS/PercentageOr.h>
#include <LibWeb/CSS/StyleValues/EdgeStyleValue.h>
#include <LibWeb/CSS/StyleValues/StyleValue.h>
namespace Web::CSS {
class PositionStyleValue final : public StyleValueWithDefaultOperators<PositionStyleValue> {
public:
static ValueComparingNonnullRefPtr<PositionStyleValue const> create(ValueComparingNonnullRefPtr<EdgeStyleValue const> edge_x, ValueComparingNonnullRefPtr<EdgeStyleValue const> edge_y);
static ValueComparingNonnullRefPtr<PositionStyleValue const> create_center();
static ValueComparingNonnullRefPtr<PositionStyleValue const> create_computed_center();
virtual ~PositionStyleValue() override = default;
ValueComparingNonnullRefPtr<EdgeStyleValue const> edge_x() const { return m_properties.edge_x; }
ValueComparingNonnullRefPtr<EdgeStyleValue const> edge_y() const { return m_properties.edge_y; }
bool is_center(SerializationMode) const;
CSSPixelPoint resolved(Layout::Node const&, CSSPixelRect const&) const;
ValueComparingNonnullRefPtr<PositionStyleValue const> with_resolved_keywords() const;
virtual ValueComparingNonnullRefPtr<StyleValue const> absolutized(ComputationContext const& computation_context) const override;
virtual void serialize(StringBuilder&, SerializationMode) const override;
bool properties_equal(PositionStyleValue const& other) const { return m_properties == other.m_properties; }
virtual bool is_computationally_independent() const override { return m_properties.edge_x->is_computationally_independent() && m_properties.edge_y->is_computationally_independent(); }
private:
PositionStyleValue(ValueComparingNonnullRefPtr<EdgeStyleValue const> edge_x, ValueComparingNonnullRefPtr<EdgeStyleValue const> edge_y)
: StyleValueWithDefaultOperators(Type::Position)
, m_properties { .edge_x = move(edge_x), .edge_y = move(edge_y) }
{
}
struct Properties {
ValueComparingNonnullRefPtr<EdgeStyleValue const> edge_x;
ValueComparingNonnullRefPtr<EdgeStyleValue const> edge_y;
bool operator==(Properties const&) const = default;
} m_properties;
};
}