tree_structural_pseudo_classes.hpp

#pragma once
 
// ------------------------------------------------------------------------------------------------
// 13. Tree-Structural pseudo-classes
//
// https://drafts.csswg.org/selectors-4/#structural-pseudos
// https://triple-underscore.github.io/selectors4-ja.html#structural-pseudos
// ------------------------------------------------------------------------------------------------
 
#include <wordring/wwwc/selectors/pseudo_class_defs.hpp>
#include <wordring/wwwc/css_defs.hpp>
 
#include <wordring/html/html_defs.hpp>
 
namespace wordring::wwwc::css
{
    // --------------------------------------------------------------------------------------------
    // 13.1. :root pseudo-class
    //
    // https://drafts.csswg.org/selectors-4/#the-root-pseudo
    // https://triple-underscore.github.io/selectors4-ja.html#the-empty-pseudo
    // --------------------------------------------------------------------------------------------
 
    class root_pseudo_class
    {
        using document_type_name = wordring::html::document_type_name;
        using document_mode_name = wordring::html::document_mode_name;
 
    public:
        template <typename NodePointer>
        static bool match(NodePointer const& np, match_context<NodePointer> const& ctx)
        {
            using traits = typename wordring::html::node_traits<NodePointer>;
            return traits::is_root(np);
        }
    };
}