/* -*- 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_
