Userland/Libraries/LibWeb/CSS/Selector.cpp


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/*
 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#include <LibWeb/CSS/Selector.h>

namespace Web::CSS {

Selector::Selector(Vector<ComplexSelector>&& component_lists)
    : m_complex_selectors(move(component_lists))
{
}

Selector::~Selector()
{
}

u32 Selector::specificity() const
{
    unsigned ids = 0;
    unsigned tag_names = 0;
    unsigned classes = 0;

    for (auto& list : m_complex_selectors) {
        for (auto& simple_selector : list.compound_selector) {
            switch (simple_selector.type) {
            case SimpleSelector::Type::Id:
                ++ids;
                break;
            case SimpleSelector::Type::Class:
                ++classes;
                break;
            case SimpleSelector::Type::TagName:
                ++tag_names;
                break;
            default:
                break;
            }
        }
    }

    return ids * 0x10000 + classes * 0x100 + tag_names;
}

}