Source/WebCore/html/LabelableElement.h

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#ifndef LabelableElement_h
#define LabelableElement_h

#include "HTMLElement.h"

namespace WebCore {

// LabelableElement represents "labelable element" defined in the HTML specification.
class LabelableElement : public HTMLElement {
public:
    virtual ~LabelableElement();

    PassRefPtr<NodeList> labels();
    virtual bool supportLabels() const { return false; }

protected:
    LabelableElement(const QualifiedName& tagName, Document&);

private:
    virtual bool isLabelable() const OVERRIDE FINAL { return true; }
};

void isLabelableElement(const LabelableElement&); // Catch unnecessary runtime check of type known at compile time.
inline bool isLabelableElement(const HTMLElement& element) { return element.isLabelable(); }
inline bool isLabelableElement(const Node& node) { return node.isHTMLElement() && toHTMLElement(node).isLabelable(); }
template <> inline bool isElementOfType<const LabelableElement>(const Element& element) { return isLabelableElement(element); }

NODE_TYPE_CASTS(LabelableElement)

} // namespace WebCore

#endif