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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_SVGANIMATEDINTEGERPAIR_H_
#define DOM_SVG_SVGANIMATEDINTEGERPAIR_H_
#include "DOMSVGAnimatedInteger.h"
#include "nsCycleCollectionParticipant.h"
#include "nsError.h"
#include "mozilla/Attributes.h"
#include "mozilla/SMILAttr.h"
#include "mozilla/UniquePtr.h"
namespace mozilla {
class SMILValue;
namespace dom {
class SVGAnimationElement;
class SVGElement;
} // namespace dom
class SVGAnimatedIntegerPair {
public:
friend class AutoChangeIntegerPairNotifier;
using SVGElement = dom::SVGElement;
enum PairIndex { eFirst, eSecond };
void Init(uint8_t aAttrEnum = 0xff, int32_t aValue1 = 0,
int32_t aValue2 = 0) {
mAnimVal[0] = mBaseVal[0] = aValue1;
mAnimVal[1] = mBaseVal[1] = aValue2;
mAttrEnum = aAttrEnum;
mIsAnimated = false;
mIsBaseSet = false;
}
nsresult SetBaseValueString(const nsAString& aValue, SVGElement* aSVGElement);
void GetBaseValueString(nsAString& aValue) const;
void SetBaseValue(int32_t aValue, PairIndex aPairIndex,
SVGElement* aSVGElement);
void SetBaseValues(int32_t aValue1, int32_t aValue2, SVGElement* aSVGElement);
int32_t GetBaseValue(PairIndex aIndex) const {
return mBaseVal[aIndex == eFirst ? 0 : 1];
}
void SetAnimValue(const int32_t aValue[2], SVGElement* aSVGElement);
int32_t GetAnimValue(PairIndex aIndex) const {
return mAnimVal[aIndex == eFirst ? 0 : 1];
}
// Returns true if the animated value of this integer has been explicitly
// set (either by animation, or by taking on the base value which has been
// explicitly set by markup or a DOM call), false otherwise.
// If this returns false, the animated value is still valid, that is,
// usable, and represents the default base value of the attribute.
bool IsExplicitlySet() const { return mIsAnimated || mIsBaseSet; }
already_AddRefed<dom::DOMSVGAnimatedInteger> ToDOMAnimatedInteger(
PairIndex aIndex, SVGElement* aSVGElement);
UniquePtr<SMILAttr> ToSMILAttr(SVGElement* aSVGElement);
private:
int32_t mAnimVal[2];
int32_t mBaseVal[2];
uint8_t mAttrEnum; // element specified tracking for attribute
bool mIsAnimated;
bool mIsBaseSet;
public:
struct DOMAnimatedInteger final : public dom::DOMSVGAnimatedInteger {
DOMAnimatedInteger(SVGAnimatedIntegerPair* aVal, PairIndex aIndex,
SVGElement* aSVGElement)
: dom::DOMSVGAnimatedInteger(aSVGElement), mVal(aVal), mIndex(aIndex) {}
virtual ~DOMAnimatedInteger();
SVGAnimatedIntegerPair* mVal; // kept alive because it belongs to content
PairIndex mIndex; // are we the first or second integer
virtual int32_t BaseVal() override { return mVal->GetBaseValue(mIndex); }
virtual void SetBaseVal(int32_t aValue) override {
mVal->SetBaseValue(aValue, mIndex, mSVGElement);
}
// Script may have modified animation parameters or timeline -- DOM getters
// need to flush any resample requests to reflect these modifications.
virtual int32_t AnimVal() override {
mSVGElement->FlushAnimations();
return mVal->GetAnimValue(mIndex);
}
};
struct SMILIntegerPair : public SMILAttr {
public:
SMILIntegerPair(SVGAnimatedIntegerPair* 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.
SVGAnimatedIntegerPair* mVal;
SVGElement* mSVGElement;
// SMILAttr methods
virtual nsresult ValueFromString(
const nsAString& aStr, const dom::SVGAnimationElement* aSrcElement,
SMILValue& aValue, bool& aPreventCachingOfSandwich) const override;
virtual SMILValue GetBaseValue() const override;
virtual void ClearAnimValue() override;
virtual nsresult SetAnimValue(const SMILValue& aValue) override;
};
};
} // namespace mozilla
#endif // DOM_SVG_SVGANIMATEDINTEGERPAIR_H_
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