Source/WebCore/html/HTMLDataListElement.cpp

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#include "config.h"

#if ENABLE(DATALIST_ELEMENT)

#include "HTMLDataListElement.h"

#include "GenericCachedHTMLCollection.h"
#include "HTMLNames.h"
#include "HTMLOptionElement.h"
#include "IdTargetObserverRegistry.h"
#include "NodeRareData.h"
#include <wtf/IsoMallocInlines.h>

namespace WebCore {

WTF_MAKE_ISO_ALLOCATED_IMPL(HTMLDataListElement);

inline HTMLDataListElement::HTMLDataListElement(const QualifiedName& tagName, Document& document)
    : HTMLElement(tagName, document)
{
    document.incrementDataListElementCount();
}

HTMLDataListElement::~HTMLDataListElement()
{
    document().decrementDataListElementCount();
}

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

void HTMLDataListElement::didMoveToNewDocument(Document& oldDocument, Document& newDocument)
{
    oldDocument.decrementDataListElementCount();
    newDocument.incrementDataListElementCount();
    HTMLElement::didMoveToNewDocument(oldDocument, newDocument);
}

Ref<HTMLCollection> HTMLDataListElement::options()
{
    return ensureRareData().ensureNodeLists().addCachedCollection<GenericCachedHTMLCollection<CollectionTypeTraits<DataListOptions>::traversalType>>(*this, DataListOptions);
}

void HTMLDataListElement::optionElementChildrenChanged()
{
    treeScope().idTargetObserverRegistry().notifyObservers(getIdAttribute());
}

bool HTMLDataListElement::isSuggestion(const HTMLOptionElement& descendant)
{
    return !descendant.isDisabledFormControl() && !descendant.value().isEmpty();
}

} // namespace WebCore

#endif // ENABLE(DATALIST_ELEMENT)