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gecko-dev/dom/svg/nsSVGElement.h

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/* -*- Mode: C++; tab-width: 2; 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 __NS_SVGELEMENT_H__
#define __NS_SVGELEMENT_H__
/*
nsSVGElement is the base class for all SVG content elements.
It implements all the common DOM interfaces and handles attributes.
*/
#include "mozilla/Attributes.h"
#include "mozilla/css/StyleRule.h"
#include "nsAutoPtr.h"
#include "nsChangeHint.h"
#include "nsCOMPtr.h"
#include "nsCycleCollectionParticipant.h"
#include "nsError.h"
#include "mozilla/dom/DOMRect.h"
#include "mozilla/dom/ElementInlines.h"
#include "nsISupportsImpl.h"
#include "nsStyledElement.h"
#include "nsSVGClass.h"
#include "nsIDOMSVGElement.h"
class nsSVGAngle;
class nsSVGBoolean;
class nsSVGEnum;
class nsSVGInteger;
class nsSVGIntegerPair;
class nsSVGLength2;
class nsSVGNumber2;
class nsSVGNumberPair;
class nsSVGPathGeometryElement;
class nsSVGString;
class nsSVGViewBox;
namespace mozilla {
namespace dom {
class CSSValue;
class SVGSVGElement;
static const unsigned short SVG_UNIT_TYPE_UNKNOWN = 0;
static const unsigned short SVG_UNIT_TYPE_USERSPACEONUSE = 1;
static const unsigned short SVG_UNIT_TYPE_OBJECTBOUNDINGBOX = 2;
}
class SVGAnimatedNumberList;
class SVGNumberList;
class SVGAnimatedLengthList;
class SVGUserUnitList;
class SVGAnimatedPointList;
class SVGAnimatedPathSegList;
class SVGAnimatedPreserveAspectRatio;
class nsSVGAnimatedTransformList;
class SVGStringList;
class DOMSVGStringList;
namespace gfx {
class Matrix;
}
}
class gfxMatrix;
struct nsSVGEnumMapping;
typedef nsStyledElementNotElementCSSInlineStyle nsSVGElementBase;
class nsSVGElement : public nsSVGElementBase // nsIContent
, public nsIDOMSVGElement
{
protected:
explicit nsSVGElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo);
friend nsresult NS_NewSVGElement(mozilla::dom::Element **aResult,
already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
nsresult Init();
virtual ~nsSVGElement(){}
public:
virtual nsresult Clone(mozilla::dom::NodeInfo *aNodeInfo, nsINode **aResult) const MOZ_MUST_OVERRIDE override;
typedef mozilla::SVGNumberList SVGNumberList;
typedef mozilla::SVGAnimatedNumberList SVGAnimatedNumberList;
typedef mozilla::SVGUserUnitList SVGUserUnitList;
typedef mozilla::SVGAnimatedLengthList SVGAnimatedLengthList;
typedef mozilla::SVGAnimatedPointList SVGAnimatedPointList;
typedef mozilla::SVGAnimatedPathSegList SVGAnimatedPathSegList;
typedef mozilla::SVGAnimatedPreserveAspectRatio SVGAnimatedPreserveAspectRatio;
typedef mozilla::nsSVGAnimatedTransformList nsSVGAnimatedTransformList;
typedef mozilla::SVGStringList SVGStringList;
// nsISupports
NS_DECL_ISUPPORTS_INHERITED
void DidAnimateClass();
// nsIContent interface methods
virtual nsresult BindToTree(nsIDocument* aDocument, nsIContent* aParent,
nsIContent* aBindingParent,
bool aCompileEventHandlers) override;
virtual nsresult UnsetAttr(int32_t aNameSpaceID, nsIAtom* aAttribute,
bool aNotify) override;
virtual nsChangeHint GetAttributeChangeHint(const nsIAtom* aAttribute,
int32_t aModType) const override;
virtual bool IsNodeOfType(uint32_t aFlags) const override;
NS_IMETHOD WalkContentStyleRules(nsRuleWalker* aRuleWalker) override;
void WalkAnimatedContentStyleRules(nsRuleWalker* aRuleWalker);
NS_IMETHOD_(bool) IsAttributeMapped(const nsIAtom* aAttribute) const override;
static const MappedAttributeEntry sFillStrokeMap[];
static const MappedAttributeEntry sGraphicsMap[];
static const MappedAttributeEntry sTextContentElementsMap[];
static const MappedAttributeEntry sFontSpecificationMap[];
static const MappedAttributeEntry sGradientStopMap[];
static const MappedAttributeEntry sViewportsMap[];
static const MappedAttributeEntry sMarkersMap[];
static const MappedAttributeEntry sColorMap[];
static const MappedAttributeEntry sFiltersMap[];
static const MappedAttributeEntry sFEFloodMap[];
static const MappedAttributeEntry sLightingEffectsMap[];
static const MappedAttributeEntry sMaskMap[];
NS_FORWARD_NSIDOMNODE_TO_NSINODE
NS_FORWARD_NSIDOMELEMENT_TO_GENERIC
NS_DECL_NSIDOMSVGELEMENT
// Gets the element that establishes the rectangular viewport against which
// we should resolve percentage lengths (our "coordinate context"). Returns
// nullptr for outer <svg> or SVG without an <svg> parent (invalid SVG).
mozilla::dom::SVGSVGElement* GetCtx() const;
enum TransformTypes {
eAllTransforms
,eUserSpaceToParent
,eChildToUserSpace
};
/**
* Returns aMatrix pre-multiplied by (explicit or implicit) transforms that
* are introduced by attributes on this element.
*
* If aWhich is eAllTransforms, then all the transforms from the coordinate
* space established by this element for its children to the coordinate
* space established by this element's parent element for this element, are
* included.
*
* If aWhich is eUserSpaceToParent, then only the transforms from this
* element's userspace to the coordinate space established by its parent is
* included. This includes any transforms introduced by the 'transform'
* attribute, transform animations and animateMotion, but not any offsets
* due to e.g. 'x'/'y' attributes, or any transform due to a 'viewBox'
* attribute. (SVG userspace is defined to be the coordinate space in which
* coordinates on an element apply.)
*
* If aWhich is eChildToUserSpace, then only the transforms from the
* coordinate space established by this element for its childre to this
* elements userspace are included. This includes any offsets due to e.g.
* 'x'/'y' attributes, and any transform due to a 'viewBox' attribute, but
* does not include any transforms due to the 'transform' attribute.
*/
virtual gfxMatrix PrependLocalTransformsTo(const gfxMatrix &aMatrix,
TransformTypes aWhich = eAllTransforms) const;
// Setter for to set the current <animateMotion> transformation
// Only visible for nsSVGGraphicElement, so it's a no-op here, and that
// subclass has the useful implementation.
virtual void SetAnimateMotionTransform(const mozilla::gfx::Matrix* aMatrix) {/*no-op*/}
virtual const mozilla::gfx::Matrix* GetAnimateMotionTransform() const { return nullptr; }
bool IsStringAnimatable(uint8_t aAttrEnum) {
return GetStringInfo().mStringInfo[aAttrEnum].mIsAnimatable;
}
bool NumberAttrAllowsPercentage(uint8_t aAttrEnum) {
return GetNumberInfo().mNumberInfo[aAttrEnum].mPercentagesAllowed;
}
virtual bool HasValidDimensions() const {
return true;
}
void SetLength(nsIAtom* aName, const nsSVGLength2 &aLength);
nsAttrValue WillChangeLength(uint8_t aAttrEnum);
nsAttrValue WillChangeNumberPair(uint8_t aAttrEnum);
nsAttrValue WillChangeIntegerPair(uint8_t aAttrEnum);
nsAttrValue WillChangeAngle(uint8_t aAttrEnum);
nsAttrValue WillChangeViewBox();
nsAttrValue WillChangePreserveAspectRatio();
nsAttrValue WillChangeNumberList(uint8_t aAttrEnum);
nsAttrValue WillChangeLengthList(uint8_t aAttrEnum);
nsAttrValue WillChangePointList();
nsAttrValue WillChangePathSegList();
nsAttrValue WillChangeTransformList();
nsAttrValue WillChangeStringList(bool aIsConditionalProcessingAttribute,
uint8_t aAttrEnum);
void DidChangeLength(uint8_t aAttrEnum, const nsAttrValue& aEmptyOrOldValue);
void DidChangeNumber(uint8_t aAttrEnum);
void DidChangeNumberPair(uint8_t aAttrEnum,
const nsAttrValue& aEmptyOrOldValue);
void DidChangeInteger(uint8_t aAttrEnum);
void DidChangeIntegerPair(uint8_t aAttrEnum,
const nsAttrValue& aEmptyOrOldValue);
void DidChangeAngle(uint8_t aAttrEnum, const nsAttrValue& aEmptyOrOldValue);
void DidChangeBoolean(uint8_t aAttrEnum);
void DidChangeEnum(uint8_t aAttrEnum);
void DidChangeViewBox(const nsAttrValue& aEmptyOrOldValue);
void DidChangePreserveAspectRatio(const nsAttrValue& aEmptyOrOldValue);
void DidChangeNumberList(uint8_t aAttrEnum,
const nsAttrValue& aEmptyOrOldValue);
void DidChangeLengthList(uint8_t aAttrEnum,
const nsAttrValue& aEmptyOrOldValue);
void DidChangePointList(const nsAttrValue& aEmptyOrOldValue);
void DidChangePathSegList(const nsAttrValue& aEmptyOrOldValue);
void DidChangeTransformList(const nsAttrValue& aEmptyOrOldValue);
void DidChangeString(uint8_t aAttrEnum) {}
void DidChangeStringList(bool aIsConditionalProcessingAttribute,
uint8_t aAttrEnum,
const nsAttrValue& aEmptyOrOldValue);
void DidAnimateLength(uint8_t aAttrEnum);
void DidAnimateNumber(uint8_t aAttrEnum);
void DidAnimateNumberPair(uint8_t aAttrEnum);
void DidAnimateInteger(uint8_t aAttrEnum);
void DidAnimateIntegerPair(uint8_t aAttrEnum);
void DidAnimateAngle(uint8_t aAttrEnum);
void DidAnimateBoolean(uint8_t aAttrEnum);
void DidAnimateEnum(uint8_t aAttrEnum);
void DidAnimateViewBox();
void DidAnimatePreserveAspectRatio();
void DidAnimateNumberList(uint8_t aAttrEnum);
void DidAnimateLengthList(uint8_t aAttrEnum);
void DidAnimatePointList();
void DidAnimatePathSegList();
void DidAnimateTransformList(int32_t aModType);
void DidAnimateString(uint8_t aAttrEnum);
enum {
/**
* Flag to indicate to GetAnimatedXxx() methods that the object being
* requested should be allocated if it hasn't already been allocated, and
* that the method should not return null. Only applicable to methods that
* need to allocate the object that they return.
*/
DO_ALLOCATE = 0x1
};
nsSVGLength2* GetAnimatedLength(const nsIAtom *aAttrName);
void GetAnimatedLengthValues(float *aFirst, ...);
void GetAnimatedNumberValues(float *aFirst, ...);
void GetAnimatedIntegerValues(int32_t *aFirst, ...);
SVGAnimatedNumberList* GetAnimatedNumberList(uint8_t aAttrEnum);
SVGAnimatedNumberList* GetAnimatedNumberList(nsIAtom *aAttrName);
void GetAnimatedLengthListValues(SVGUserUnitList *aFirst, ...);
SVGAnimatedLengthList* GetAnimatedLengthList(uint8_t aAttrEnum);
virtual SVGAnimatedPointList* GetAnimatedPointList() {
return nullptr;
}
virtual SVGAnimatedPathSegList* GetAnimPathSegList() {
// DOM interface 'SVGAnimatedPathData' (*inherited* by nsSVGPathElement)
// has a member called 'animatedPathSegList' member, so we have a shorter
// name so we don't get hidden by the GetAnimatedPathSegList declared by
// NS_DECL_NSIDOMSVGANIMATEDPATHDATA.
return nullptr;
}
/**
* Get the nsSVGAnimatedTransformList for this element.
*
* Despite the fact that animated transform lists are used for a variety of
* attributes, no SVG element uses more than one.
*
* It's relatively uncommon for elements to have their transform attribute
* set, so to save memory the nsSVGAnimatedTransformList is not allocated until
* the attribute is set/animated or its DOM wrapper is created. Callers that
* require the nsSVGAnimatedTransformList to be allocated and for this method
* to return non-null must pass the DO_ALLOCATE flag.
*/
virtual nsSVGAnimatedTransformList* GetAnimatedTransformList(
uint32_t aFlags = 0) {
return nullptr;
}
virtual nsISMILAttr* GetAnimatedAttr(int32_t aNamespaceID, nsIAtom* aName) override;
void AnimationNeedsResample();
void FlushAnimations();
virtual void RecompileScriptEventListeners() override;
void GetStringBaseValue(uint8_t aAttrEnum, nsAString& aResult) const;
void SetStringBaseValue(uint8_t aAttrEnum, const nsAString& aValue);
virtual nsIAtom* GetPointListAttrName() const {
return nullptr;
}
virtual nsIAtom* GetPathDataAttrName() const {
return nullptr;
}
virtual nsIAtom* GetTransformListAttrName() const {
return nullptr;
}
const nsAttrValue* GetAnimatedClassName() const
{
if (!mClassAttribute.IsAnimated()) {
return nullptr;
}
return mClassAnimAttr;
}
virtual void ClearAnyCachedPath() {}
virtual nsIDOMNode* AsDOMNode() final override { return this; }
virtual bool IsTransformable() { return false; }
// WebIDL
mozilla::dom::SVGSVGElement* GetOwnerSVGElement();
nsSVGElement* GetViewportElement();
already_AddRefed<mozilla::dom::SVGAnimatedString> ClassName();
protected:
virtual JSObject* WrapNode(JSContext *cx, JS::Handle<JSObject*> aGivenProto) override;
#ifdef DEBUG
// We define BeforeSetAttr here and mark it final to ensure it is NOT used
// by SVG elements.
// This is because we're not currently passing the correct value for aValue to
// BeforeSetAttr since it would involve allocating extra SVG value types.
// See the comment in nsSVGElement::WillChangeValue.
virtual nsresult BeforeSetAttr(int32_t aNamespaceID, nsIAtom* aName,
const nsAttrValueOrString* aValue,
bool aNotify) override final { return NS_OK; }
#endif // DEBUG
virtual nsresult AfterSetAttr(int32_t aNamespaceID, nsIAtom* aName,
const nsAttrValue* aValue, bool aNotify) override;
virtual bool ParseAttribute(int32_t aNamespaceID, nsIAtom* aAttribute,
const nsAString& aValue, nsAttrValue& aResult) override;
static nsresult ReportAttributeParseFailure(nsIDocument* aDocument,
nsIAtom* aAttribute,
const nsAString& aValue);
void UpdateContentStyleRule();
void UpdateAnimatedContentStyleRule();
mozilla::css::StyleRule* GetAnimatedContentStyleRule();
nsAttrValue WillChangeValue(nsIAtom* aName);
void DidChangeValue(nsIAtom* aName, const nsAttrValue& aEmptyOrOldValue,
nsAttrValue& aNewValue);
void MaybeSerializeAttrBeforeRemoval(nsIAtom* aName, bool aNotify);
static nsIAtom* GetEventNameForAttr(nsIAtom* aAttr);
struct LengthInfo {
nsIAtom** mName;
float mDefaultValue;
uint8_t mDefaultUnitType;
uint8_t mCtxType;
};
struct LengthAttributesInfo {
nsSVGLength2* mLengths;
LengthInfo* mLengthInfo;
uint32_t mLengthCount;
LengthAttributesInfo(nsSVGLength2 *aLengths,
LengthInfo *aLengthInfo,
uint32_t aLengthCount) :
mLengths(aLengths), mLengthInfo(aLengthInfo), mLengthCount(aLengthCount)
{}
void Reset(uint8_t aAttrEnum);
};
struct NumberInfo {
nsIAtom** mName;
float mDefaultValue;
bool mPercentagesAllowed;
};
struct NumberAttributesInfo {
nsSVGNumber2* mNumbers;
NumberInfo* mNumberInfo;
uint32_t mNumberCount;
NumberAttributesInfo(nsSVGNumber2 *aNumbers,
NumberInfo *aNumberInfo,
uint32_t aNumberCount) :
mNumbers(aNumbers), mNumberInfo(aNumberInfo), mNumberCount(aNumberCount)
{}
void Reset(uint8_t aAttrEnum);
};
struct NumberPairInfo {
nsIAtom** mName;
float mDefaultValue1;
float mDefaultValue2;
};
struct NumberPairAttributesInfo {
nsSVGNumberPair* mNumberPairs;
NumberPairInfo* mNumberPairInfo;
uint32_t mNumberPairCount;
NumberPairAttributesInfo(nsSVGNumberPair *aNumberPairs,
NumberPairInfo *aNumberPairInfo,
uint32_t aNumberPairCount) :
mNumberPairs(aNumberPairs), mNumberPairInfo(aNumberPairInfo),
mNumberPairCount(aNumberPairCount)
{}
void Reset(uint8_t aAttrEnum);
};
struct IntegerInfo {
nsIAtom** mName;
int32_t mDefaultValue;
};
struct IntegerAttributesInfo {
nsSVGInteger* mIntegers;
IntegerInfo* mIntegerInfo;
uint32_t mIntegerCount;
IntegerAttributesInfo(nsSVGInteger *aIntegers,
IntegerInfo *aIntegerInfo,
uint32_t aIntegerCount) :
mIntegers(aIntegers), mIntegerInfo(aIntegerInfo), mIntegerCount(aIntegerCount)
{}
void Reset(uint8_t aAttrEnum);
};
struct IntegerPairInfo {
nsIAtom** mName;
int32_t mDefaultValue1;
int32_t mDefaultValue2;
};
struct IntegerPairAttributesInfo {
nsSVGIntegerPair* mIntegerPairs;
IntegerPairInfo* mIntegerPairInfo;
uint32_t mIntegerPairCount;
IntegerPairAttributesInfo(nsSVGIntegerPair *aIntegerPairs,
IntegerPairInfo *aIntegerPairInfo,
uint32_t aIntegerPairCount) :
mIntegerPairs(aIntegerPairs), mIntegerPairInfo(aIntegerPairInfo),
mIntegerPairCount(aIntegerPairCount)
{}
void Reset(uint8_t aAttrEnum);
};
struct AngleInfo {
nsIAtom** mName;
float mDefaultValue;
uint8_t mDefaultUnitType;
};
struct AngleAttributesInfo {
nsSVGAngle* mAngles;
AngleInfo* mAngleInfo;
uint32_t mAngleCount;
AngleAttributesInfo(nsSVGAngle *aAngles,
AngleInfo *aAngleInfo,
uint32_t aAngleCount) :
mAngles(aAngles), mAngleInfo(aAngleInfo), mAngleCount(aAngleCount)
{}
void Reset(uint8_t aAttrEnum);
};
struct BooleanInfo {
nsIAtom** mName;
bool mDefaultValue;
};
struct BooleanAttributesInfo {
nsSVGBoolean* mBooleans;
BooleanInfo* mBooleanInfo;
uint32_t mBooleanCount;
BooleanAttributesInfo(nsSVGBoolean *aBooleans,
BooleanInfo *aBooleanInfo,
uint32_t aBooleanCount) :
mBooleans(aBooleans), mBooleanInfo(aBooleanInfo), mBooleanCount(aBooleanCount)
{}
void Reset(uint8_t aAttrEnum);
};
friend class nsSVGEnum;
struct EnumInfo {
nsIAtom** mName;
nsSVGEnumMapping* mMapping;
uint16_t mDefaultValue;
};
struct EnumAttributesInfo {
nsSVGEnum* mEnums;
EnumInfo* mEnumInfo;
uint32_t mEnumCount;
EnumAttributesInfo(nsSVGEnum *aEnums,
EnumInfo *aEnumInfo,
uint32_t aEnumCount) :
mEnums(aEnums), mEnumInfo(aEnumInfo), mEnumCount(aEnumCount)
{}
void Reset(uint8_t aAttrEnum);
};
struct NumberListInfo {
nsIAtom** mName;
};
struct NumberListAttributesInfo {
SVGAnimatedNumberList* mNumberLists;
NumberListInfo* mNumberListInfo;
uint32_t mNumberListCount;
NumberListAttributesInfo(SVGAnimatedNumberList *aNumberLists,
NumberListInfo *aNumberListInfo,
uint32_t aNumberListCount)
: mNumberLists(aNumberLists)
, mNumberListInfo(aNumberListInfo)
, mNumberListCount(aNumberListCount)
{}
void Reset(uint8_t aAttrEnum);
};
struct LengthListInfo {
nsIAtom** mName;
uint8_t mAxis;
/**
* Flag to indicate whether appending zeros to the end of the list would
* change the rendering of the SVG for the attribute in question. For x and
* y on the <text> element this is true, but for dx and dy on <text> this
* is false. This flag is fed down to SVGLengthListSMILType so it can
* determine if it can sensibly animate from-to lists of different lengths,
* which is desirable in the case of dx and dy.
*/
bool mCouldZeroPadList;
};
struct LengthListAttributesInfo {
SVGAnimatedLengthList* mLengthLists;
LengthListInfo* mLengthListInfo;
uint32_t mLengthListCount;
LengthListAttributesInfo(SVGAnimatedLengthList *aLengthLists,
LengthListInfo *aLengthListInfo,
uint32_t aLengthListCount)
: mLengthLists(aLengthLists)
, mLengthListInfo(aLengthListInfo)
, mLengthListCount(aLengthListCount)
{}
void Reset(uint8_t aAttrEnum);
};
struct StringInfo {
nsIAtom** mName;
int32_t mNamespaceID;
bool mIsAnimatable;
};
struct StringAttributesInfo {
nsSVGString* mStrings;
StringInfo* mStringInfo;
uint32_t mStringCount;
StringAttributesInfo(nsSVGString *aStrings,
StringInfo *aStringInfo,
uint32_t aStringCount) :
mStrings(aStrings), mStringInfo(aStringInfo), mStringCount(aStringCount)
{}
void Reset(uint8_t aAttrEnum);
};
friend class mozilla::DOMSVGStringList;
struct StringListInfo {
nsIAtom** mName;
};
struct StringListAttributesInfo {
SVGStringList* mStringLists;
StringListInfo* mStringListInfo;
uint32_t mStringListCount;
StringListAttributesInfo(SVGStringList *aStringLists,
StringListInfo *aStringListInfo,
uint32_t aStringListCount) :
mStringLists(aStringLists), mStringListInfo(aStringListInfo),
mStringListCount(aStringListCount)
{}
void Reset(uint8_t aAttrEnum);
};
virtual LengthAttributesInfo GetLengthInfo();
virtual NumberAttributesInfo GetNumberInfo();
virtual NumberPairAttributesInfo GetNumberPairInfo();
virtual IntegerAttributesInfo GetIntegerInfo();
virtual IntegerPairAttributesInfo GetIntegerPairInfo();
virtual AngleAttributesInfo GetAngleInfo();
virtual BooleanAttributesInfo GetBooleanInfo();
virtual EnumAttributesInfo GetEnumInfo();
// We assume all viewboxes and preserveAspectRatios are alike
// so we don't need to wrap the class
virtual nsSVGViewBox *GetViewBox();
virtual SVGAnimatedPreserveAspectRatio *GetPreserveAspectRatio();
virtual NumberListAttributesInfo GetNumberListInfo();
virtual LengthListAttributesInfo GetLengthListInfo();
virtual StringAttributesInfo GetStringInfo();
virtual StringListAttributesInfo GetStringListInfo();
static nsSVGEnumMapping sSVGUnitTypesMap[];
private:
void UnsetAttrInternal(int32_t aNameSpaceID, nsIAtom* aAttribute,
bool aNotify);
nsSVGClass mClassAttribute;
nsAutoPtr<nsAttrValue> mClassAnimAttr;
nsRefPtr<mozilla::css::StyleRule> mContentStyleRule;
};
/**
* A macro to implement the NS_NewSVGXXXElement() functions.
*/
#define NS_IMPL_NS_NEW_SVG_ELEMENT(_elementName) \
nsresult \
NS_NewSVG##_elementName##Element(nsIContent **aResult, \
already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo) \
{ \
nsRefPtr<nsSVG##_elementName##Element> it = \
new nsSVG##_elementName##Element(aNodeInfo); \
\
nsresult rv = it->Init(); \
\
if (NS_FAILED(rv)) { \
return rv; \
} \
\
it.forget(aResult); \
\
return rv; \
}
#define NS_IMPL_NS_NEW_NAMESPACED_SVG_ELEMENT(_elementName) \
nsresult \
NS_NewSVG##_elementName##Element(nsIContent **aResult, \
already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo) \
{ \
nsRefPtr<mozilla::dom::SVG##_elementName##Element> it = \
new mozilla::dom::SVG##_elementName##Element(aNodeInfo); \
\
nsresult rv = it->Init(); \
\
if (NS_FAILED(rv)) { \
return rv; \
} \
\
it.forget(aResult); \
\
return rv; \
}
#define NS_IMPL_NS_NEW_NAMESPACED_SVG_ELEMENT_CHECK_PARSER(_elementName) \
nsresult \
NS_NewSVG##_elementName##Element(nsIContent **aResult, \
already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo, \
mozilla::dom::FromParser aFromParser) \
{ \
nsRefPtr<mozilla::dom::SVG##_elementName##Element> it = \
new mozilla::dom::SVG##_elementName##Element(aNodeInfo, aFromParser); \
\
nsresult rv = it->Init(); \
\
if (NS_FAILED(rv)) { \
return rv; \
} \
\
it.forget(aResult); \
\
return rv; \
}
// No unlinking, we'd need to null out the value pointer (the object it
// points to is held by the element) and null-check it everywhere.
#define NS_SVG_VAL_IMPL_CYCLE_COLLECTION(_val, _element) \
NS_IMPL_CYCLE_COLLECTION_CLASS(_val) \
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_val) \
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_element) \
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \
NS_IMPL_CYCLE_COLLECTION_UNLINK_0(_val)
#define NS_SVG_VAL_IMPL_CYCLE_COLLECTION_WRAPPERCACHED(_val, _element) \
NS_IMPL_CYCLE_COLLECTION_CLASS(_val) \
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_val) \
NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER \
NS_IMPL_CYCLE_COLLECTION_UNLINK_END \
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_val) \
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_element) \
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \
NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(_val) \
NS_IMPL_CYCLE_COLLECTION_TRACE_PRESERVED_WRAPPER \
NS_IMPL_CYCLE_COLLECTION_TRACE_END
#endif // __NS_SVGELEMENT_H__
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