/* -*- 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_SVGENUM_H__ #define __NS_SVGENUM_H__ #include "nsCycleCollectionParticipant.h" #include "nsError.h" #include "nsISMILAttr.h" #include "nsSVGElement.h" #include "mozilla/Attributes.h" #include "mozilla/dom/SVGAnimatedEnumeration.h" class nsIAtom; class nsSMILValue; namespace mozilla { namespace dom { class SVGAnimationElement; } // namespace dom } // namespace mozilla typedef uint8_t nsSVGEnumValue; struct nsSVGEnumMapping { nsIAtom **mKey; nsSVGEnumValue mVal; }; class nsSVGEnum { public: void Init(uint8_t aAttrEnum, uint16_t aValue) { mAnimVal = mBaseVal = uint8_t(aValue); mAttrEnum = aAttrEnum; mIsAnimated = false; mIsBaseSet = false; } nsresult SetBaseValueAtom(const nsIAtom* aValue, nsSVGElement *aSVGElement); nsIAtom* GetBaseValueAtom(nsSVGElement *aSVGElement); nsresult SetBaseValue(uint16_t aValue, nsSVGElement *aSVGElement); uint16_t GetBaseValue() const { return mBaseVal; } void SetAnimValue(uint16_t aValue, nsSVGElement *aSVGElement); uint16_t GetAnimValue() const { return mAnimVal; } bool IsExplicitlySet() const { return mIsAnimated || mIsBaseSet; } already_AddRefed<mozilla::dom::SVGAnimatedEnumeration> ToDOMAnimatedEnum(nsSVGElement* aSVGElement); // Returns a new nsISMILAttr object that the caller must delete nsISMILAttr* ToSMILAttr(nsSVGElement* aSVGElement); private: nsSVGEnumValue mAnimVal; nsSVGEnumValue mBaseVal; uint8_t mAttrEnum; // element specified tracking for attribute bool mIsAnimated; bool mIsBaseSet; nsSVGEnumMapping *GetMapping(nsSVGElement *aSVGElement); public: struct DOMAnimatedEnum final : public mozilla::dom::SVGAnimatedEnumeration { DOMAnimatedEnum(nsSVGEnum* aVal, nsSVGElement *aSVGElement) : mozilla::dom::SVGAnimatedEnumeration(aSVGElement) , mVal(aVal) {} virtual ~DOMAnimatedEnum(); nsSVGEnum *mVal; // kept alive because it belongs to content using mozilla::dom::SVGAnimatedEnumeration::SetBaseVal; virtual uint16_t BaseVal() override { return mVal->GetBaseValue(); } virtual void SetBaseVal(uint16_t aBaseVal, mozilla::ErrorResult& aRv) override { aRv = mVal->SetBaseValue(aBaseVal, mSVGElement); } virtual 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 nsISMILAttr { public: SMILEnum(nsSVGEnum* 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. nsSVGEnum* 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_SVGENUM_H__