Source/core/animation/AnimatableLengthSize.h

/*
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#ifndef AnimatableLengthSize_h
#define AnimatableLengthSize_h

#include "core/animation/AnimatableValue.h"

namespace WebCore {

class AnimatableLengthSize : public AnimatableValue {
public:
    virtual ~AnimatableLengthSize() { }
    static PassRefPtr<AnimatableLengthSize> create(PassRefPtr<AnimatableValue> width, PassRefPtr<AnimatableValue> height)
    {
        return adoptRef(new AnimatableLengthSize(width, height));
    }
    const AnimatableValue* width() const { return m_width.get(); }
    const AnimatableValue* height() const { return m_height.get(); }

protected:
    virtual PassRefPtr<AnimatableValue> interpolateTo(const AnimatableValue*, double fraction) const OVERRIDE;
    virtual PassRefPtr<AnimatableValue> addWith(const AnimatableValue*) const OVERRIDE;

private:
    AnimatableLengthSize(PassRefPtr<AnimatableValue> width, PassRefPtr<AnimatableValue> height)
        : m_width(width)
        , m_height(height)
    {
    }
    virtual AnimatableType type() const OVERRIDE { return TypeLengthSize; }
    virtual bool equalTo(const AnimatableValue*) const OVERRIDE;

    RefPtr<AnimatableValue> m_width;
    RefPtr<AnimatableValue> m_height;
};

DEFINE_ANIMATABLE_VALUE_TYPE_CASTS(AnimatableLengthSize, isLengthSize());

} // namespace WebCore

#endif // AnimatableLengthSize_h