ladybird/Userland/Libraries/LibWeb/HTML/HTMLLegendElement.cpp
Andreas Kling c0d7f748ed LibWeb: Avoid FlyString lookups when setting IDL interface prototypes
This commit introduces a WEB_SET_PROTOTYPE_FOR_INTERFACE macro that
caches the interface name in a local static FlyString. This means that
we only pay for FlyString-from-literal lookup once per browser lifetime
instead of every time the interface is instantiated.
2024-03-16 16:35:54 +01:00

42 lines
1.2 KiB
C++

/*
* Copyright (c) 2020, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/Bindings/Intrinsics.h>
#include <LibWeb/HTML/HTMLFieldSetElement.h>
#include <LibWeb/HTML/HTMLLegendElement.h>
namespace Web::HTML {
JS_DEFINE_ALLOCATOR(HTMLLegendElement);
HTMLLegendElement::HTMLLegendElement(DOM::Document& document, DOM::QualifiedName qualified_name)
: HTMLElement(document, move(qualified_name))
{
}
HTMLLegendElement::~HTMLLegendElement() = default;
void HTMLLegendElement::initialize(JS::Realm& realm)
{
Base::initialize(realm);
WEB_SET_PROTOTYPE_FOR_INTERFACE(HTMLLegendElement);
}
// https://html.spec.whatwg.org/multipage/form-elements.html#dom-legend-form
HTMLFormElement* HTMLLegendElement::form()
{
// The form IDL attribute's behavior depends on whether the legend element is in a fieldset element or not.
// If the legend has a fieldset element as its parent, then the form IDL attribute must return the same value as the form IDL attribute on that fieldset element.
if (is<HTML::HTMLFieldSetElement>(parent_element())) {
return verify_cast<HTML::HTMLFieldSetElement>(parent_element())->form();
}
// Otherwise, it must return null.
return nullptr;
}
}