/* -*- 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 MOZILLA_SVGANIMATEDPRESERVEASPECTRATIO_H__ #define MOZILLA_SVGANIMATEDPRESERVEASPECTRATIO_H__ #include "nsCycleCollectionParticipant.h" #include "nsError.h" #include "nsISMILAttr.h" #include "nsSVGElement.h" #include "SVGPreserveAspectRatio.h" #include "mozilla/Attributes.h" class nsSMILValue; namespace mozilla { namespace dom { class DOMSVGAnimatedPreserveAspectRatio; class SVGAnimationElement; } // namespace dom class SVGAnimatedPreserveAspectRatio final { public: void Init() { mBaseVal.mAlign = SVG_PRESERVEASPECTRATIO_XMIDYMID; mBaseVal.mMeetOrSlice = SVG_MEETORSLICE_MEET; mAnimVal = mBaseVal; mIsAnimated = false; mIsBaseSet = false; } nsresult SetBaseValueString(const nsAString& aValue, nsSVGElement *aSVGElement, bool aDoSetAttr); void GetBaseValueString(nsAString& aValue) const; void SetBaseValue(const SVGPreserveAspectRatio &aValue, nsSVGElement *aSVGElement); nsresult SetBaseAlign(uint16_t aAlign, nsSVGElement *aSVGElement) { if (aAlign < SVG_ALIGN_MIN_VALID || aAlign > SVG_ALIGN_MAX_VALID) { return NS_ERROR_FAILURE; } SetBaseValue(SVGPreserveAspectRatio( static_cast<SVGAlign>(aAlign), mBaseVal.GetMeetOrSlice()), aSVGElement); return NS_OK; } nsresult SetBaseMeetOrSlice(uint16_t aMeetOrSlice, nsSVGElement *aSVGElement) { if (aMeetOrSlice < SVG_MEETORSLICE_MIN_VALID || aMeetOrSlice > SVG_MEETORSLICE_MAX_VALID) { return NS_ERROR_FAILURE; } SetBaseValue(SVGPreserveAspectRatio( mBaseVal.GetAlign(), static_cast<SVGMeetOrSlice>(aMeetOrSlice)), aSVGElement); return NS_OK; } void SetAnimValue(uint64_t aPackedValue, nsSVGElement *aSVGElement); const SVGPreserveAspectRatio &GetBaseValue() const { return mBaseVal; } const SVGPreserveAspectRatio &GetAnimValue() const { return mAnimVal; } bool IsAnimated() const { return mIsAnimated; } bool IsExplicitlySet() const { return mIsAnimated || mIsBaseSet; } already_AddRefed<mozilla::dom::DOMSVGAnimatedPreserveAspectRatio> ToDOMAnimatedPreserveAspectRatio(nsSVGElement* aSVGElement); // Returns a new nsISMILAttr object that the caller must delete nsISMILAttr* ToSMILAttr(nsSVGElement* aSVGElement); private: SVGPreserveAspectRatio mAnimVal; SVGPreserveAspectRatio mBaseVal; bool mIsAnimated; bool mIsBaseSet; public: struct SMILPreserveAspectRatio final : public nsISMILAttr { public: SMILPreserveAspectRatio(SVGAnimatedPreserveAspectRatio* 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. SVGAnimatedPreserveAspectRatio* mVal; nsSVGElement* mSVGElement; // nsISMILAttr methods virtual nsresult ValueFromString(const nsAString& aStr, const 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; }; }; namespace dom { class DOMSVGAnimatedPreserveAspectRatio final : public nsISupports, public nsWrapperCache { ~DOMSVGAnimatedPreserveAspectRatio(); NS_DECL_CYCLE_COLLECTING_ISUPPORTS NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(DOMSVGAnimatedPreserveAspectRatio) DOMSVGAnimatedPreserveAspectRatio(SVGAnimatedPreserveAspectRatio* aVal, nsSVGElement *aSVGElement) : mVal(aVal), mSVGElement(aSVGElement) { } // WebIDL nsSVGElement* GetParentObject() const { return mSVGElement; } virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override; // These aren't weak refs because new objects are returned each time already_AddRefed<DOMSVGPreserveAspectRatio> BaseVal(); already_AddRefed<DOMSVGPreserveAspectRatio> AnimVal(); protected: // kept alive because it belongs to content: SVGAnimatedPreserveAspectRatio* mVal; RefPtr<nsSVGElement> mSVGElement; }; } // namespace dom } // namespace mozilla #endif // MOZILLA_SVGANIMATEDPRESERVEASPECTRATIO_H__