ladybird/Libraries/LibWeb/HTML/HTMLHeadingElement.h

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1.2 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <andreas@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibWeb/ARIA/Roles.h>
#include <LibWeb/HTML/HTMLElement.h>
namespace Web::HTML {
class HTMLHeadingElement final : public HTMLElement {
WEB_PLATFORM_OBJECT(HTMLHeadingElement, HTMLElement);
GC_DECLARE_ALLOCATOR(HTMLHeadingElement);
public:
virtual ~HTMLHeadingElement() override;
virtual bool is_presentational_hint(FlyString const&) const override;
virtual void apply_presentational_hints(GC::Ref<CSS::CascadedProperties>) const override;
// https://www.w3.org/TR/html-aria/#el-h1-h6
virtual Optional<ARIA::Role> default_role() const override { return ARIA::Role::heading; }
virtual Optional<String> aria_level() const override
{
if (auto const attr = get_attribute(ARIA::AttributeNames::aria_level); attr.has_value())
return attr;
// Implicit defaults to the number in the element's tag name.
return MUST(local_name().to_string().substring_from_byte_offset(1));
}
private:
HTMLHeadingElement(DOM::Document&, DOM::QualifiedName);
virtual void initialize(JS::Realm&) override;
};
}