ladybird/Libraries/LibWeb/HTML/HTMLOListElement.cpp

/*
 * Copyright (c) 2020, the SerenityOS developers.
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#include <LibWeb/Bindings/HTMLOListElementPrototype.h>
#include <LibWeb/Bindings/Intrinsics.h>
#include <LibWeb/HTML/HTMLOListElement.h>
#include <LibWeb/HTML/Numbers.h>

namespace Web::HTML {

GC_DEFINE_ALLOCATOR(HTMLOListElement);

HTMLOListElement::HTMLOListElement(DOM::Document& document, DOM::QualifiedName qualified_name)
    : HTMLElement(document, move(qualified_name))
{
}

HTMLOListElement::~HTMLOListElement() = default;

void HTMLOListElement::initialize(JS::Realm& realm)
{
    Base::initialize(realm);
    WEB_SET_PROTOTYPE_FOR_INTERFACE(HTMLOListElement);
}

// https://html.spec.whatwg.org/multipage/grouping-content.html#dom-ol-start
WebIDL::Long HTMLOListElement::start()
{
    // The start IDL attribute must reflect the content attribute of the same name, with a default value of 1.
    auto content_attribute_value = get_attribute(AttributeNames::start).value_or("1"_string);
    if (auto maybe_number = HTML::parse_integer(content_attribute_value); maybe_number.has_value())
        return *maybe_number;
    return 1;
}

}