/* -*- 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_SVGCLASS_H__

#define __NS_SVGCLASS_H__

#include "nsAutoPtr.h"

#include "nsCycleCollectionParticipant.h"

#include "nsError.h"

#include "nsISMILAttr.h"

#include "nsString.h"

#include "mozilla/Attributes.h"

#include "mozilla/UniquePtr.h"

class nsSVGElement;

namespace mozilla {

namespace dom {

class SVGAnimatedString;

} // namespace dom

} // namespace mozilla

class nsSVGClass

{

public:

  void Init() {

    mAnimVal = nullptr;

  }

  void SetBaseValue(const nsAString& aValue,

                    nsSVGElement *aSVGElement,

                    bool aDoSetAttr);

  void GetBaseValue(nsAString& aValue, const nsSVGElement *aSVGElement) const;

  void SetAnimValue(const nsAString& aValue, nsSVGElement *aSVGElement);

  void GetAnimValue(nsAString& aValue, const nsSVGElement *aSVGElement) const;

  bool IsAnimated() const

    { return !!mAnimVal; }

  already_AddRefed<mozilla::dom::SVGAnimatedString>

  ToDOMAnimatedString(nsSVGElement* aSVGElement);

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

private:

  nsAutoPtr<nsString> mAnimVal;

public:

  struct SMILString : public nsISMILAttr

  {

  public:

    SMILString(nsSVGClass *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.

    nsSVGClass* 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_SVGCLASS_H__