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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_SVGANIMATEDENUMERATION_H_
#define DOM_SVG_SVGANIMATEDENUMERATION_H_
#include "DOMSVGAnimatedEnumeration.h"
#include "nsCycleCollectionParticipant.h"
#include "nsError.h"
#include "mozilla/Attributes.h"
#include "mozilla/SMILAttr.h"
#include "mozilla/UniquePtr.h"
#include "mozilla/dom/SVGElement.h"
class nsAtom;
namespace mozilla {
class SMILValue;
namespace dom {
class SVGAnimationElement;
} // namespace dom
using SVGEnumValue = uint8_t;
struct SVGEnumMapping {
nsStaticAtom* const mKey;
const SVGEnumValue mVal;
};
class SVGAnimatedEnumeration {
public:
friend class AutoChangeEnumNotifier;
using SVGElement = dom::SVGElement;
void Init(uint8_t aAttrEnum, uint16_t aValue) {
mAnimVal = mBaseVal = uint8_t(aValue);
mAttrEnum = aAttrEnum;
mIsAnimated = false;
mIsBaseSet = false;
}
// Returns whether aValue corresponded to a key in our mapping (in which case
// we actually set the base value) or not (in which case we did not).
bool SetBaseValueAtom(const nsAtom* aValue, SVGElement* aSVGElement);
nsAtom* GetBaseValueAtom(SVGElement* aSVGElement);
void SetBaseValue(uint16_t aValue, SVGElement* aSVGElement, ErrorResult& aRv);
uint16_t GetBaseValue() const { return mBaseVal; }
void SetAnimValue(uint16_t aValue, SVGElement* aSVGElement);
uint16_t GetAnimValue() const { return mAnimVal; }
bool IsExplicitlySet() const { return mIsAnimated || mIsBaseSet; }
already_AddRefed<dom::DOMSVGAnimatedEnumeration> ToDOMAnimatedEnum(
SVGElement* aSVGElement);
UniquePtr<SMILAttr> ToSMILAttr(SVGElement* aSVGElement);
private:
SVGEnumValue mAnimVal;
SVGEnumValue mBaseVal;
uint8_t mAttrEnum; // element specified tracking for attribute
bool mIsAnimated;
bool mIsBaseSet;
const SVGEnumMapping* GetMapping(SVGElement* aSVGElement);
public:
// DOM wrapper class for the (DOM)SVGAnimatedEnumeration interface where the
// wrapped class is SVGAnimatedEnumeration.
struct DOMAnimatedEnum final : public dom::DOMSVGAnimatedEnumeration {
DOMAnimatedEnum(SVGAnimatedEnumeration* aVal, SVGElement* aSVGElement)
: dom::DOMSVGAnimatedEnumeration(aSVGElement), mVal(aVal) {}
virtual ~DOMAnimatedEnum();
SVGAnimatedEnumeration* mVal; // kept alive because it belongs to content
using dom::DOMSVGAnimatedEnumeration::SetBaseVal;
uint16_t BaseVal() override { return mVal->GetBaseValue(); }
void SetBaseVal(uint16_t aBaseVal, ErrorResult& aRv) override {
mVal->SetBaseValue(aBaseVal, mSVGElement, aRv);
}
uint16_t AnimVal() override {
// Script may have modified animation parameters or timeline -- DOM
// getters need to flush any resample requests to reflect these
// modifications.
mSVGElement->FlushAnimations();
return mVal->GetAnimValue();
}
};
struct SMILEnum : public SMILAttr {
public:
SMILEnum(SVGAnimatedEnumeration* 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.
SVGAnimatedEnumeration* 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_SVGANIMATEDENUMERATION_H_
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