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/*
* Copyright (C) 2012 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#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 <typename ArgType>
struct ElementTypeCastTraits<const LabelableElement, ArgType> {
static bool is(ArgType& node) { return isLabelableElement(node); }
};
NODE_TYPE_CASTS(LabelableElement)
} // namespace WebCore
#endif
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