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#ifndef SVGNumberOptionalNumber_h
#define SVGNumberOptionalNumber_h

#include "core/svg/SVGAnimatedNumber.h"
#include "platform/heap/Handle.h"

namespace blink {

class SVGNumberOptionalNumber : public SVGPropertyBase {
public:
    // Tearoff of SVGNumberOptionalNumber is never created.
    typedef void TearOffType;
    typedef void PrimitiveType;

    static PassRefPtrWillBeRawPtr<SVGNumberOptionalNumber> create(PassRefPtrWillBeRawPtr<SVGNumber> firstNumber, PassRefPtrWillBeRawPtr<SVGNumber> secondNumber)
    {
        return adoptRefWillBeNoop(new SVGNumberOptionalNumber(firstNumber, secondNumber));
    }

    PassRefPtrWillBeRawPtr<SVGNumberOptionalNumber> clone() const;
    virtual PassRefPtrWillBeRawPtr<SVGPropertyBase> cloneForAnimation(const String&) const override;

    virtual String valueAsString() const override;
    void setValueAsString(const String&, ExceptionState&);

    virtual void add(PassRefPtrWillBeRawPtr<SVGPropertyBase>, SVGElement*) override;
    virtual void calculateAnimatedValue(SVGAnimationElement*, float percentage, unsigned repeatCount, PassRefPtrWillBeRawPtr<SVGPropertyBase> from, PassRefPtrWillBeRawPtr<SVGPropertyBase> to, PassRefPtrWillBeRawPtr<SVGPropertyBase> toAtEndOfDurationValue, SVGElement* contextElement) override;
    virtual float calculateDistance(PassRefPtrWillBeRawPtr<SVGPropertyBase> to, SVGElement* contextElement) override;

    static AnimatedPropertyType classType() { return AnimatedNumberOptionalNumber; }

    PassRefPtrWillBeRawPtr<SVGNumber> firstNumber() { return m_firstNumber; }
    PassRefPtrWillBeRawPtr<SVGNumber> secondNumber() { return m_secondNumber; }

    DECLARE_VIRTUAL_TRACE();

protected:
    SVGNumberOptionalNumber(PassRefPtrWillBeRawPtr<SVGNumber> firstNumber, PassRefPtrWillBeRawPtr<SVGNumber> secondNumber);

    RefPtrWillBeMember<SVGNumber> m_firstNumber;
    RefPtrWillBeMember<SVGNumber> m_secondNumber;
};

inline PassRefPtrWillBeRawPtr<SVGNumberOptionalNumber> toSVGNumberOptionalNumber(PassRefPtrWillBeRawPtr<SVGPropertyBase> passBase)
{
    RefPtrWillBeRawPtr<SVGPropertyBase> base = passBase;
    ASSERT(base->type() == SVGNumberOptionalNumber::classType());
    return static_pointer_cast<SVGNumberOptionalNumber>(base.release());
}

} // namespace blink

#endif // SVGNumberOptionalNumber_h
