/* -*- 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/. */

#ifndef __NS_SVGBOOLEAN_H__

#define __NS_SVGBOOLEAN_H__

#include "nsCOMPtr.h"

#include "nsError.h"

#include "nsISMILAttr.h"

#include "mozilla/Attributes.h"

#include "mozilla/UniquePtr.h"

class nsAtom;

class nsSMILValue;

class nsSVGElement;

namespace mozilla {

namespace dom {

class SVGAnimationElement;

class SVGAnimatedBoolean;

} // namespace dom

} // namespace mozilla

class nsSVGBoolean

{

public:

  void Init(uint8_t aAttrEnum = 0xff, bool aValue = false) {

    mAnimVal = mBaseVal = aValue;

    mAttrEnum = aAttrEnum;

    mIsAnimated = false;

  }

  nsresult SetBaseValueAtom(const nsAtom* aValue, nsSVGElement *aSVGElement);

  nsAtom* GetBaseValueAtom() const;

  void SetBaseValue(bool aValue, nsSVGElement *aSVGElement);

  bool GetBaseValue() const

    { return mBaseVal; }

  void SetAnimValue(bool aValue, nsSVGElement *aSVGElement);

  bool GetAnimValue() const

    { return mAnimVal; }

  already_AddRefed<mozilla::dom::SVGAnimatedBoolean>

    ToDOMAnimatedBoolean(nsSVGElement* aSVGElement);

  mozilla::UniquePtr<nsISMILAttr> ToSMILAttr(nsSVGElement* aSVGElement);

private:

  bool mAnimVal;

  bool mBaseVal;

  bool mIsAnimated;

  uint8_t mAttrEnum; // element specified tracking for attribute

public:

  struct SMILBool : public nsISMILAttr

  {

  public:

    SMILBool(nsSVGBoolean* aVal, nsSVGElement* aSVGElement)

      : mVal(aVal), mSVGElement(aSVGElement) {}

    // These will stay alive because a nsISMILAttr only lives as long

    // as the Compositing step, and DOM elements don't get a chance to

    // die during that.

    nsSVGBoolean* mVal;

    nsSVGElement* mSVGElement;

    // nsISMILAttr methods

    virtual nsresult ValueFromString(const nsAString& aStr,

                                     const mozilla::dom::SVGAnimationElement* aSrcElement,

                                     nsSMILValue& aValue,

                                     bool& aPreventCachingOfSandwich) const override;

    virtual nsSMILValue GetBaseValue() const override;

    virtual void ClearAnimValue() override;

    virtual nsresult SetAnimValue(const nsSMILValue& aValue) override;

  };

};

#endif //__NS_SVGBOOLEAN_H__