ladybird/Libraries/LibWeb/CSS/StyleValues/EdgeStyleValue.h

/*
 * Copyright (c) 2023, MacDue <macdue@dueutil.tech>
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#pragma once

#include <LibWeb/CSS/StyleValues/PercentageStyleValue.h>
#include <LibWeb/CSS/StyleValues/StyleValue.h>

namespace Web::CSS {

class EdgeStyleValue final : public StyleValueWithDefaultOperators<EdgeStyleValue> {
public:
    static ValueComparingNonnullRefPtr<EdgeStyleValue const> create(Optional<PositionEdge> edge, RefPtr<StyleValue const> const& offset)
    {
        return adopt_ref(*new (nothrow) EdgeStyleValue(edge, offset));
    }
    virtual ~EdgeStyleValue() override = default;

    // This is nonnull as it is only called after resolving keywords
    NonnullRefPtr<StyleValue const> offset() const { return *m_properties.offset; }

    bool is_center(SerializationMode) const;

    virtual void serialize(StringBuilder&, SerializationMode) const override;

    ValueComparingNonnullRefPtr<EdgeStyleValue const> with_resolved_keywords() const;
    virtual ValueComparingNonnullRefPtr<StyleValue const> absolutized(ComputationContext const& computation_context) const override;
    bool properties_equal(EdgeStyleValue const& other) const { return m_properties == other.m_properties; }

    virtual bool is_computationally_independent() const override { return m_properties.offset->is_computationally_independent(); }

private:
    EdgeStyleValue(Optional<PositionEdge> edge, RefPtr<StyleValue const> const& offset)
        : StyleValueWithDefaultOperators(Type::Edge)
        , m_properties { .edge = edge, .offset = offset }
    {
    }

    struct Properties {
        Optional<PositionEdge> edge;
        ValueComparingRefPtr<StyleValue const> offset;
        bool operator==(Properties const&) const = default;
    } m_properties;
};

}