Source/WebCore/html/HTMLOutputElement.cpp

/*
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 * Copyright (c) 2021 Apple Inc. All rights reserved.
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#include "config.h"
#include "HTMLOutputElement.h"

#include "DOMTokenList.h"
#include "HTMLFormElement.h"
#include "HTMLNames.h"
#include <wtf/IsoMallocInlines.h>
#include <wtf/NeverDestroyed.h>

namespace WebCore {

WTF_MAKE_ISO_ALLOCATED_IMPL(HTMLOutputElement);

inline HTMLOutputElement::HTMLOutputElement(const QualifiedName& tagName, Document& document, HTMLFormElement* form)
    : HTMLFormControlElement(tagName, document, form)
{
}

Ref<HTMLOutputElement> HTMLOutputElement::create(const QualifiedName& tagName, Document& document, HTMLFormElement* form)
{
    return adoptRef(*new HTMLOutputElement(tagName, document, form));
}

Ref<HTMLOutputElement> HTMLOutputElement::create(Document& document)
{
    return create(HTMLNames::outputTag, document, nullptr);
}

const AtomString& HTMLOutputElement::formControlType() const
{
    static MainThreadNeverDestroyed<const AtomString> output("output", AtomString::ConstructFromLiteral);
    return output;
}

bool HTMLOutputElement::supportsFocus() const
{
    return HTMLElement::supportsFocus();
}

void HTMLOutputElement::parseAttribute(const QualifiedName& name, const AtomString& value)
{
    if (name == HTMLNames::forAttr && m_forTokens)
        m_forTokens->associatedAttributeValueChanged(value);
    HTMLFormControlElement::parseAttribute(name, value);
}

void HTMLOutputElement::reset()
{
    stringReplaceAll(defaultValue());
    m_defaultValueOverride = { };
}

String HTMLOutputElement::value() const
{
    return textContent();
}

void HTMLOutputElement::setValue(const String& value)
{
    m_defaultValueOverride = defaultValue();
    stringReplaceAll(value);
}

String HTMLOutputElement::defaultValue() const
{
    return m_defaultValueOverride.isNull() ? textContent() : m_defaultValueOverride;
}

void HTMLOutputElement::setDefaultValue(const String& value)
{
    if (m_defaultValueOverride.isNull())
        stringReplaceAll(value);
    else
        m_defaultValueOverride = value;
}

DOMTokenList& HTMLOutputElement::htmlFor()
{
    if (!m_forTokens)
        m_forTokens = makeUnique<DOMTokenList>(*this, HTMLNames::forAttr);
    return *m_forTokens;
}

} // namespace