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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_SVGANIMATEDPRESERVEASPECTRATIO_H_
#define DOM_SVG_SVGANIMATEDPRESERVEASPECTRATIO_H_
#include "nsCycleCollectionParticipant.h"
#include "nsError.h"
#include "mozilla/SVGPreserveAspectRatio.h"
#include "mozilla/Attributes.h"
#include "mozilla/SMILAttr.h"
#include "mozilla/UniquePtr.h"
#include "mozilla/dom/SVGElement.h"
namespace mozilla {
class SMILValue;
namespace dom {
class DOMSVGAnimatedPreserveAspectRatio;
class SVGAnimationElement;
} // namespace dom
class SVGAnimatedPreserveAspectRatio final {
friend class AutoChangePreserveAspectRatioNotifier;
public:
void Init() {
mBaseVal.mAlign =
dom::SVGPreserveAspectRatio_Binding::SVG_PRESERVEASPECTRATIO_XMIDYMID;
mBaseVal.mMeetOrSlice =
dom::SVGPreserveAspectRatio_Binding::SVG_MEETORSLICE_MEET;
mAnimVal = mBaseVal;
mIsAnimated = false;
mIsBaseSet = false;
}
nsresult SetBaseValueString(const nsAString& aValue,
dom::SVGElement* aSVGElement, bool aDoSetAttr);
void GetBaseValueString(nsAString& aValue) const;
void SetBaseValue(const SVGPreserveAspectRatio& aValue,
dom::SVGElement* aSVGElement);
nsresult SetBaseAlign(uint16_t aAlign, dom::SVGElement* aSVGElement) {
if (aAlign < SVG_ALIGN_MIN_VALID || aAlign > SVG_ALIGN_MAX_VALID) {
return NS_ERROR_FAILURE;
}
SetBaseValue(SVGPreserveAspectRatio(static_cast<uint8_t>(aAlign),
mBaseVal.GetMeetOrSlice()),
aSVGElement);
return NS_OK;
}
nsresult SetBaseMeetOrSlice(uint16_t aMeetOrSlice,
dom::SVGElement* aSVGElement) {
if (aMeetOrSlice < SVG_MEETORSLICE_MIN_VALID ||
aMeetOrSlice > SVG_MEETORSLICE_MAX_VALID) {
return NS_ERROR_FAILURE;
}
SetBaseValue(SVGPreserveAspectRatio(mBaseVal.GetAlign(),
static_cast<uint8_t>(aMeetOrSlice)),
aSVGElement);
return NS_OK;
}
void SetAnimValue(uint64_t aPackedValue, dom::SVGElement* 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<dom::DOMSVGAnimatedPreserveAspectRatio>
ToDOMAnimatedPreserveAspectRatio(dom::SVGElement* aSVGElement);
UniquePtr<SMILAttr> ToSMILAttr(dom::SVGElement* aSVGElement);
private:
SVGPreserveAspectRatio mAnimVal;
SVGPreserveAspectRatio mBaseVal;
bool mIsAnimated;
bool mIsBaseSet;
public:
struct SMILPreserveAspectRatio final : public SMILAttr {
public:
SMILPreserveAspectRatio(SVGAnimatedPreserveAspectRatio* aVal,
dom::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.
SVGAnimatedPreserveAspectRatio* mVal;
dom::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 dom {
class DOMSVGAnimatedPreserveAspectRatio final : public nsWrapperCache {
~DOMSVGAnimatedPreserveAspectRatio();
NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(
DOMSVGAnimatedPreserveAspectRatio)
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(
DOMSVGAnimatedPreserveAspectRatio)
DOMSVGAnimatedPreserveAspectRatio(SVGAnimatedPreserveAspectRatio* aVal,
dom::SVGElement* aSVGElement)
: mVal(aVal), mSVGElement(aSVGElement) {}
// WebIDL
dom::SVGElement* 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<dom::SVGElement> mSVGElement;
};
} // namespace dom
} // namespace mozilla
#endif // DOM_SVG_SVGANIMATEDPRESERVEASPECTRATIO_H_
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