SVGAnimatedClass.h

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/* -*- 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 DOM_SVG_SVGANIMATEDCLASS_H_

#define DOM_SVG_SVGANIMATEDCLASS_H_

#include "nsCycleCollectionParticipant.h"

#include "mozilla/SVGAnimatedClassOrString.h"

#include "mozilla/Attributes.h"

#include "mozilla/SMILAttr.h"

#include "mozilla/UniquePtr.h"

namespace mozilla {

class SMILValue;

namespace dom {

class DOMSVGAnimatedString;

class SVGElement;

}  // namespace dom

class SVGAnimatedClass final : public SVGAnimatedClassOrString {

 public:

  using SVGElement = dom::SVGElement;

  void Init() { mAnimVal = nullptr; }

  void SetBaseValue(const nsAString& aValue, SVGElement* aSVGElement,

                    bool aDoSetAttr) override;

  void GetBaseValue(nsAString& aValue,

                    const SVGElement* aSVGElement) const override;

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

  void GetAnimValue(nsAString& aResult,

                    const SVGElement* aSVGElement) const override;

  bool IsAnimated() const { return !!mAnimVal; }

  UniquePtr<SMILAttr> ToSMILAttr(SVGElement* aSVGElement);

 private:

  UniquePtr<nsString> mAnimVal;

 public:

  struct SMILString : public SMILAttr {

   public:

    SMILString(SVGAnimatedClass* aVal, SVGElement* aSVGElement)

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

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

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

    // die during that.

    SVGAnimatedClass* mVal;

    SVGElement* mSVGElement;

    // SMILAttr methods

    nsresult ValueFromString(const nsAString& aStr,

                             const dom::SVGAnimationElement* aSrcElement,

                             SMILValue& aValue,

                             bool& aPreventCachingOfSandwich) const override;

    SMILValue GetBaseValue() const override;

    void ClearAnimValue() override;

    nsresult SetAnimValue(const SMILValue& aValue) override;

};

};

}  // namespace mozilla

#endif  // DOM_SVG_SVGANIMATEDCLASS_H_