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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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__
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