/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

/* representation of a dummy attribute targeted by <animateMotion> element */

#ifndef MOZILLA_SVGMOTIONSMILATTR_H_

#define MOZILLA_SVGMOTIONSMILATTR_H_

#include "mozilla/Attributes.h"

#include "nsISMILAttr.h"

class nsIContent;

class nsSMILValue;

class nsSVGElement;

namespace mozilla {

namespace dom {

class SVGAnimationElement;

} // namespace dom

/**

 * SVGMotionSMILAttr: Implements the nsISMILAttr interface for SMIL animations

 * from <animateMotion>.

 *

 * NOTE: Even though there's technically no "motion" attribute, we behave in

 * many ways as if there were, for simplicity.

 */

class SVGMotionSMILAttr : public nsISMILAttr

{

public:

  explicit SVGMotionSMILAttr(nsSVGElement* aSVGElement)

    : mSVGElement(aSVGElement) {}

  // nsISMILAttr methods

  virtual nsresult ValueFromString(const nsAString& aStr,

                                   const dom::SVGAnimationElement* aSrcElement,

                                   nsSMILValue& aValue,

                                   bool& aPreventCachingOfSandwich) const override;

  virtual nsSMILValue GetBaseValue() const override;

  virtual nsresult    SetAnimValue(const nsSMILValue& aValue) override;

  virtual void        ClearAnimValue() override;

  virtual const nsIContent* GetTargetNode() const override;

protected:

  // Raw pointers are OK here because this SVGMotionSMILAttr is both

  // created & destroyed during a SMIL sample-step, during which time the DOM

  // isn't modified.

  nsSVGElement* mSVGElement;

};

} // namespace mozilla

#endif // MOZILLA_SVGMOTIONSMILATTR_H_