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gecko-dev/dom/svg/SVGElement.cpp

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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/. */
#include "mozilla/dom/SVGElement.h"
#include "mozilla/dom/MutationEventBinding.h"
#include "mozilla/dom/MutationObservers.h"
#include "mozilla/dom/SVGElementBinding.h"
#include "mozilla/dom/SVGGeometryElement.h"
#include "mozilla/dom/SVGLengthBinding.h"
#include "mozilla/dom/SVGSVGElement.h"
#include "mozilla/dom/SVGTests.h"
#include "mozilla/dom/SVGUnitTypesBinding.h"
#include "mozilla/ArrayUtils.h"
#include "mozilla/DebugOnly.h"
#include "mozilla/DeclarationBlock.h"
#include "mozilla/EventListenerManager.h"
#include "mozilla/InternalMutationEvent.h"
#include "mozilla/PresShell.h"
#include "mozilla/RestyleManager.h"
#include "mozilla/SMILAnimationController.h"
#include "mozilla/StaticPrefs_layout.h"
#include "mozilla/SVGContentUtils.h"
#include "mozilla/Unused.h"
#include "DOMSVGAnimatedEnumeration.h"
#include "mozAutoDocUpdate.h"
#include "nsAttrValueOrString.h"
#include "nsCSSProps.h"
#include "nsContentUtils.h"
#include "nsDOMCSSAttrDeclaration.h"
#include "nsICSSDeclaration.h"
#include "nsIContentInlines.h"
#include "mozilla/dom/Document.h"
#include "nsError.h"
#include "nsGkAtoms.h"
#include "nsIFrame.h"
#include "nsQueryObject.h"
#include "nsLayoutUtils.h"
#include "SVGAnimatedNumberList.h"
#include "SVGAnimatedLengthList.h"
#include "SVGAnimatedPointList.h"
#include "SVGAnimatedPathSegList.h"
#include "SVGAnimatedTransformList.h"
#include "SVGAnimatedBoolean.h"
#include "SVGAnimatedEnumeration.h"
#include "SVGAnimatedInteger.h"
#include "SVGAnimatedIntegerPair.h"
#include "SVGAnimatedLength.h"
#include "SVGAnimatedNumber.h"
#include "SVGAnimatedNumberPair.h"
#include "SVGAnimatedOrient.h"
#include "SVGAnimatedString.h"
#include "SVGAnimatedViewBox.h"
#include "SVGGeometryProperty.h"
#include "SVGMotionSMILAttr.h"
#include <stdarg.h>
// This is needed to ensure correct handling of calls to the
// vararg-list methods in this file:
// SVGElement::GetAnimated{Length,Number,Integer}Values
// See bug 547964 for details:
static_assert(sizeof(void*) == sizeof(nullptr),
"nullptr should be the correct size");
nsresult NS_NewSVGElement(
Element** aResult, already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo) {
RefPtr<mozilla::dom::NodeInfo> nodeInfo(aNodeInfo);
auto* nim = nodeInfo->NodeInfoManager();
RefPtr<mozilla::dom::SVGElement> it =
new (nim) mozilla::dom::SVGElement(nodeInfo.forget());
nsresult rv = it->Init();
if (NS_FAILED(rv)) {
return rv;
}
it.forget(aResult);
return rv;
}
namespace mozilla {
namespace dom {
using namespace SVGUnitTypes_Binding;
NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGElement)
SVGEnumMapping SVGElement::sSVGUnitTypesMap[] = {
{nsGkAtoms::userSpaceOnUse, SVG_UNIT_TYPE_USERSPACEONUSE},
{nsGkAtoms::objectBoundingBox, SVG_UNIT_TYPE_OBJECTBOUNDINGBOX},
{nullptr, 0}};
SVGElement::SVGElement(already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo)
: SVGElementBase(std::move(aNodeInfo)) {}
SVGElement::~SVGElement() {
OwnerDoc()->UnscheduleSVGForPresAttrEvaluation(this);
}
JSObject* SVGElement::WrapNode(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) {
return SVGElement_Binding::Wrap(aCx, this, aGivenProto);
}
nsresult SVGElement::CopyInnerTo(mozilla::dom::Element* aDest) {
nsresult rv = Element::CopyInnerTo(aDest);
NS_ENSURE_SUCCESS(rv, rv);
// cloning a node must retain its internal nonce slot
nsString* nonce = static_cast<nsString*>(GetProperty(nsGkAtoms::nonce));
if (nonce) {
static_cast<SVGElement*>(aDest)->SetNonce(*nonce);
}
return NS_OK;
}
//----------------------------------------------------------------------
// SVGElement methods
void SVGElement::DidAnimateClass() {
// For Servo, snapshot the element before we change it.
PresShell* presShell = OwnerDoc()->GetPresShell();
if (presShell) {
if (nsPresContext* presContext = presShell->GetPresContext()) {
presContext->RestyleManager()->ClassAttributeWillBeChangedBySMIL(this);
}
}
nsAutoString src;
mClassAttribute.GetAnimValue(src, this);
if (!mClassAnimAttr) {
mClassAnimAttr = MakeUnique<nsAttrValue>();
}
mClassAnimAttr->ParseAtomArray(src);
// FIXME(emilio): This re-selector-matches, but we do the snapshot stuff right
// above... Is this needed anymore?
if (presShell) {
presShell->RestyleForAnimation(this, RestyleHint::RESTYLE_SELF);
}
}
nsresult SVGElement::Init() {
// Set up length attributes - can't do this in the constructor
// because we can't do a virtual call at that point
LengthAttributesInfo lengthInfo = GetLengthInfo();
uint32_t i;
for (i = 0; i < lengthInfo.mLengthCount; i++) {
lengthInfo.Reset(i);
}
NumberAttributesInfo numberInfo = GetNumberInfo();
for (i = 0; i < numberInfo.mNumberCount; i++) {
numberInfo.Reset(i);
}
NumberPairAttributesInfo numberPairInfo = GetNumberPairInfo();
for (i = 0; i < numberPairInfo.mNumberPairCount; i++) {
numberPairInfo.Reset(i);
}
IntegerAttributesInfo integerInfo = GetIntegerInfo();
for (i = 0; i < integerInfo.mIntegerCount; i++) {
integerInfo.Reset(i);
}
IntegerPairAttributesInfo integerPairInfo = GetIntegerPairInfo();
for (i = 0; i < integerPairInfo.mIntegerPairCount; i++) {
integerPairInfo.Reset(i);
}
BooleanAttributesInfo booleanInfo = GetBooleanInfo();
for (i = 0; i < booleanInfo.mBooleanCount; i++) {
booleanInfo.Reset(i);
}
EnumAttributesInfo enumInfo = GetEnumInfo();
for (i = 0; i < enumInfo.mEnumCount; i++) {
enumInfo.Reset(i);
}
SVGAnimatedOrient* orient = GetAnimatedOrient();
if (orient) {
orient->Init();
}
SVGAnimatedViewBox* viewBox = GetAnimatedViewBox();
if (viewBox) {
viewBox->Init();
}
SVGAnimatedPreserveAspectRatio* preserveAspectRatio =
GetAnimatedPreserveAspectRatio();
if (preserveAspectRatio) {
preserveAspectRatio->Init();
}
LengthListAttributesInfo lengthListInfo = GetLengthListInfo();
for (i = 0; i < lengthListInfo.mLengthListCount; i++) {
lengthListInfo.Reset(i);
}
NumberListAttributesInfo numberListInfo = GetNumberListInfo();
for (i = 0; i < numberListInfo.mNumberListCount; i++) {
numberListInfo.Reset(i);
}
// No need to reset SVGPointList since the default value is always the same
// (an empty list).
// No need to reset SVGPathData since the default value is always the same
// (an empty list).
StringAttributesInfo stringInfo = GetStringInfo();
for (i = 0; i < stringInfo.mStringCount; i++) {
stringInfo.Reset(i);
}
return NS_OK;
}
//----------------------------------------------------------------------
// Implementation
//----------------------------------------------------------------------
// nsIContent methods
nsresult SVGElement::BindToTree(BindContext& aContext, nsINode& aParent) {
nsresult rv = SVGElementBase::BindToTree(aContext, aParent);
NS_ENSURE_SUCCESS(rv, rv);
// Hide any nonce from the DOM, but keep the internal value of the
// nonce by copying and resetting the internal nonce value.
if (HasFlag(NODE_HAS_NONCE_AND_HEADER_CSP) && IsInComposedDoc() &&
OwnerDoc()->GetBrowsingContext()) {
nsContentUtils::AddScriptRunner(NS_NewRunnableFunction(
"SVGElement::ResetNonce::Runnable",
[self = RefPtr<SVGElement>(this)]() {
nsAutoString nonce;
self->GetNonce(nonce);
self->SetAttr(kNameSpaceID_None, nsGkAtoms::nonce, EmptyString(),
true);
self->SetNonce(nonce);
}));
}
if (!MayHaveStyle()) {
return NS_OK;
}
const nsAttrValue* oldVal = mAttrs.GetAttr(nsGkAtoms::style);
if (oldVal && oldVal->Type() == nsAttrValue::eCSSDeclaration) {
// we need to force a reparse because the baseURI of the document
// may have changed, and in particular because we may be clones of
// XBL anonymous content now being bound to the document we should
// render in and due to the hacky way in which we implement the
// interaction of XBL and SVG resources. Once we have a sane
// ownerDocument on XBL anonymous content, this can all go away.
nsAttrValue attrValue;
nsAutoString stringValue;
oldVal->ToString(stringValue);
// Force in data doc, since we already have a style rule
ParseStyleAttribute(stringValue, nullptr, attrValue, true);
// Don't bother going through SetInlineStyleDeclaration; we don't
// want to fire off mutation events or document notifications anyway
bool oldValueSet;
rv = mAttrs.SetAndSwapAttr(nsGkAtoms::style, attrValue, &oldValueSet);
NS_ENSURE_SUCCESS(rv, rv);
}
return NS_OK;
}
nsresult SVGElement::AfterSetAttr(int32_t aNamespaceID, nsAtom* aName,
const nsAttrValue* aValue,
const nsAttrValue* aOldValue,
nsIPrincipal* aSubjectPrincipal,
bool aNotify) {
// We don't currently use nsMappedAttributes within SVG. If this changes, we
// need to be very careful because some nsAttrValues used by SVG point to
// member data of SVG elements and if an nsAttrValue outlives the SVG element
// whose data it points to (by virtue of being stored in
// mAttrs->mMappedAttributes, meaning it's shared between
// elements), the pointer will dangle. See bug 724680.
MOZ_ASSERT(!mAttrs.HasMappedAttrs(),
"Unexpected use of nsMappedAttributes within SVG");
// If this is an svg presentation attribute we need to map it into
// the content declaration block.
// XXX For some reason incremental mapping doesn't work, so for now
// just delete the style rule and lazily reconstruct it as needed).
if (aNamespaceID == kNameSpaceID_None && IsAttributeMapped(aName)) {
mContentDeclarationBlock = nullptr;
OwnerDoc()->ScheduleSVGForPresAttrEvaluation(this);
}
if (IsEventAttributeName(aName) && aValue) {
MOZ_ASSERT(aValue->Type() == nsAttrValue::eString,
"Expected string value for script body");
SetEventHandler(GetEventNameForAttr(aName), aValue->GetStringValue());
}
// The nonce will be copied over to an internal slot and cleared from the
// Element within BindToTree to avoid CSS Selector nonce exfiltration if
// the CSP list contains a header-delivered CSP.
if (nsGkAtoms::nonce == aName && kNameSpaceID_None == aNamespaceID) {
if (aValue) {
SetNonce(aValue->GetStringValue());
if (OwnerDoc()->GetHasCSPDeliveredThroughHeader()) {
SetFlags(NODE_HAS_NONCE_AND_HEADER_CSP);
}
} else {
RemoveNonce();
}
}
return SVGElementBase::AfterSetAttr(aNamespaceID, aName, aValue, aOldValue,
aSubjectPrincipal, aNotify);
}
bool SVGElement::ParseAttribute(int32_t aNamespaceID, nsAtom* aAttribute,
const nsAString& aValue,
nsIPrincipal* aMaybeScriptedPrincipal,
nsAttrValue& aResult) {
nsresult rv = NS_OK;
bool foundMatch = false;
bool didSetResult = false;
if (aNamespaceID == kNameSpaceID_None) {
// Check for SVGAnimatedLength attribute
LengthAttributesInfo lengthInfo = GetLengthInfo();
uint32_t i;
for (i = 0; i < lengthInfo.mLengthCount; i++) {
if (aAttribute == lengthInfo.mLengthInfo[i].mName) {
rv = lengthInfo.mLengths[i].SetBaseValueString(aValue, this, false);
if (NS_FAILED(rv)) {
lengthInfo.Reset(i);
} else {
aResult.SetTo(lengthInfo.mLengths[i], &aValue);
didSetResult = true;
}
foundMatch = true;
break;
}
}
if (!foundMatch) {
// Check for SVGAnimatedLengthList attribute
LengthListAttributesInfo lengthListInfo = GetLengthListInfo();
for (i = 0; i < lengthListInfo.mLengthListCount; i++) {
if (aAttribute == lengthListInfo.mLengthListInfo[i].mName) {
rv = lengthListInfo.mLengthLists[i].SetBaseValueString(aValue);
if (NS_FAILED(rv)) {
lengthListInfo.Reset(i);
} else {
aResult.SetTo(lengthListInfo.mLengthLists[i].GetBaseValue(),
&aValue);
didSetResult = true;
}
foundMatch = true;
break;
}
}
}
if (!foundMatch) {
// Check for SVGAnimatedNumberList attribute
NumberListAttributesInfo numberListInfo = GetNumberListInfo();
for (i = 0; i < numberListInfo.mNumberListCount; i++) {
if (aAttribute == numberListInfo.mNumberListInfo[i].mName) {
rv = numberListInfo.mNumberLists[i].SetBaseValueString(aValue);
if (NS_FAILED(rv)) {
numberListInfo.Reset(i);
} else {
aResult.SetTo(numberListInfo.mNumberLists[i].GetBaseValue(),
&aValue);
didSetResult = true;
}
foundMatch = true;
break;
}
}
}
if (!foundMatch) {
// Check for SVGAnimatedPointList attribute
if (GetPointListAttrName() == aAttribute) {
SVGAnimatedPointList* pointList = GetAnimatedPointList();
if (pointList) {
pointList->SetBaseValueString(aValue);
// The spec says we parse everything up to the failure, so we DON'T
// need to check the result of SetBaseValueString or call
// pointList->ClearBaseValue() if it fails
aResult.SetTo(pointList->GetBaseValue(), &aValue);
didSetResult = true;
foundMatch = true;
}
}
}
if (!foundMatch) {
// Check for SVGAnimatedPathSegList attribute
if (GetPathDataAttrName() == aAttribute) {
SVGAnimatedPathSegList* segList = GetAnimPathSegList();
if (segList) {
segList->SetBaseValueString(aValue);
// The spec says we parse everything up to the failure, so we DON'T
// need to check the result of SetBaseValueString or call
// segList->ClearBaseValue() if it fails
aResult.SetTo(segList->GetBaseValue(), &aValue);
didSetResult = true;
foundMatch = true;
}
}
}
if (!foundMatch) {
// Check for SVGAnimatedNumber attribute
NumberAttributesInfo numberInfo = GetNumberInfo();
for (i = 0; i < numberInfo.mNumberCount; i++) {
if (aAttribute == numberInfo.mNumberInfo[i].mName) {
rv = numberInfo.mNumbers[i].SetBaseValueString(aValue, this);
if (NS_FAILED(rv)) {
numberInfo.Reset(i);
} else {
aResult.SetTo(numberInfo.mNumbers[i].GetBaseValue(), &aValue);
didSetResult = true;
}
foundMatch = true;
break;
}
}
}
if (!foundMatch) {
// Check for SVGAnimatedNumberPair attribute
NumberPairAttributesInfo numberPairInfo = GetNumberPairInfo();
for (i = 0; i < numberPairInfo.mNumberPairCount; i++) {
if (aAttribute == numberPairInfo.mNumberPairInfo[i].mName) {
rv = numberPairInfo.mNumberPairs[i].SetBaseValueString(aValue, this);
if (NS_FAILED(rv)) {
numberPairInfo.Reset(i);
} else {
aResult.SetTo(numberPairInfo.mNumberPairs[i], &aValue);
didSetResult = true;
}
foundMatch = true;
break;
}
}
}
if (!foundMatch) {
// Check for SVGAnimatedInteger attribute
IntegerAttributesInfo integerInfo = GetIntegerInfo();
for (i = 0; i < integerInfo.mIntegerCount; i++) {
if (aAttribute == integerInfo.mIntegerInfo[i].mName) {
rv = integerInfo.mIntegers[i].SetBaseValueString(aValue, this);
if (NS_FAILED(rv)) {
integerInfo.Reset(i);
} else {
aResult.SetTo(integerInfo.mIntegers[i].GetBaseValue(), &aValue);
didSetResult = true;
}
foundMatch = true;
break;
}
}
}
if (!foundMatch) {
// Check for SVGAnimatedIntegerPair attribute
IntegerPairAttributesInfo integerPairInfo = GetIntegerPairInfo();
for (i = 0; i < integerPairInfo.mIntegerPairCount; i++) {
if (aAttribute == integerPairInfo.mIntegerPairInfo[i].mName) {
rv =
integerPairInfo.mIntegerPairs[i].SetBaseValueString(aValue, this);
if (NS_FAILED(rv)) {
integerPairInfo.Reset(i);
} else {
aResult.SetTo(integerPairInfo.mIntegerPairs[i], &aValue);
didSetResult = true;
}
foundMatch = true;
break;
}
}
}
if (!foundMatch) {
// Check for SVGAnimatedBoolean attribute
BooleanAttributesInfo booleanInfo = GetBooleanInfo();
for (i = 0; i < booleanInfo.mBooleanCount; i++) {
if (aAttribute == booleanInfo.mBooleanInfo[i].mName) {
nsAtom* valAtom = NS_GetStaticAtom(aValue);
rv = valAtom
? booleanInfo.mBooleans[i].SetBaseValueAtom(valAtom, this)
: NS_ERROR_DOM_SYNTAX_ERR;
if (NS_FAILED(rv)) {
booleanInfo.Reset(i);
} else {
aResult.SetTo(valAtom);
didSetResult = true;
}
foundMatch = true;
break;
}
}
}
if (!foundMatch) {
// Check for SVGAnimatedEnumeration attribute
EnumAttributesInfo enumInfo = GetEnumInfo();
for (i = 0; i < enumInfo.mEnumCount; i++) {
if (aAttribute == enumInfo.mEnumInfo[i].mName) {
RefPtr<nsAtom> valAtom = NS_Atomize(aValue);
if (!enumInfo.mEnums[i].SetBaseValueAtom(valAtom, this)) {
// Exact error value does not matter; we just need to mark the
// parse as failed.
rv = NS_ERROR_FAILURE;
enumInfo.SetUnknownValue(i);
} else {
aResult.SetTo(valAtom);
didSetResult = true;
}
foundMatch = true;
break;
}
}
}
if (!foundMatch) {
// Check for conditional processing attributes
nsCOMPtr<SVGTests> tests = do_QueryObject(this);
if (tests && tests->ParseConditionalProcessingAttribute(
aAttribute, aValue, aResult)) {
foundMatch = true;
}
}
if (!foundMatch) {
// Check for StringList attribute
StringListAttributesInfo stringListInfo = GetStringListInfo();
for (i = 0; i < stringListInfo.mStringListCount; i++) {
if (aAttribute == stringListInfo.mStringListInfo[i].mName) {
rv = stringListInfo.mStringLists[i].SetValue(aValue);
if (NS_FAILED(rv)) {
stringListInfo.Reset(i);
} else {
aResult.SetTo(stringListInfo.mStringLists[i], &aValue);
didSetResult = true;
}
foundMatch = true;
break;
}
}
}
if (!foundMatch) {
// Check for orient attribute
if (aAttribute == nsGkAtoms::orient) {
SVGAnimatedOrient* orient = GetAnimatedOrient();
if (orient) {
rv = orient->SetBaseValueString(aValue, this, false);
if (NS_FAILED(rv)) {
orient->Init();
} else {
aResult.SetTo(*orient, &aValue);
didSetResult = true;
}
foundMatch = true;
}
// Check for viewBox attribute
} else if (aAttribute == nsGkAtoms::viewBox) {
SVGAnimatedViewBox* viewBox = GetAnimatedViewBox();
if (viewBox) {
rv = viewBox->SetBaseValueString(aValue, this, false);
if (NS_FAILED(rv)) {
viewBox->Init();
} else {
aResult.SetTo(*viewBox, &aValue);
didSetResult = true;
}
foundMatch = true;
}
// Check for preserveAspectRatio attribute
} else if (aAttribute == nsGkAtoms::preserveAspectRatio) {
SVGAnimatedPreserveAspectRatio* preserveAspectRatio =
GetAnimatedPreserveAspectRatio();
if (preserveAspectRatio) {
rv = preserveAspectRatio->SetBaseValueString(aValue, this, false);
if (NS_FAILED(rv)) {
preserveAspectRatio->Init();
} else {
aResult.SetTo(*preserveAspectRatio, &aValue);
didSetResult = true;
}
foundMatch = true;
}
// Check for SVGAnimatedTransformList attribute
} else if (GetTransformListAttrName() == aAttribute) {
// The transform attribute is being set, so we must ensure that the
// SVGAnimatedTransformList is/has been allocated:
SVGAnimatedTransformList* transformList =
GetAnimatedTransformList(DO_ALLOCATE);
rv = transformList->SetBaseValueString(aValue, this);
if (NS_FAILED(rv)) {
transformList->ClearBaseValue();
} else {
aResult.SetTo(transformList->GetBaseValue(), &aValue);
didSetResult = true;
}
foundMatch = true;
} else if (aAttribute == nsGkAtoms::tabindex) {
didSetResult = aResult.ParseIntValue(aValue);
foundMatch = true;
}
}
if (aAttribute == nsGkAtoms::_class) {
mClassAttribute.SetBaseValue(aValue, this, false);
aResult.ParseAtomArray(aValue);
return true;
}
if (aAttribute == nsGkAtoms::rel) {
aResult.ParseAtomArray(aValue);
return true;
}
}
if (!foundMatch) {
// Check for SVGAnimatedString attribute
StringAttributesInfo stringInfo = GetStringInfo();
for (uint32_t i = 0; i < stringInfo.mStringCount; i++) {
if (aNamespaceID == stringInfo.mStringInfo[i].mNamespaceID &&
aAttribute == stringInfo.mStringInfo[i].mName) {
stringInfo.mStrings[i].SetBaseValue(aValue, this, false);
foundMatch = true;
break;
}
}
}
if (foundMatch) {
if (NS_FAILED(rv)) {
ReportAttributeParseFailure(OwnerDoc(), aAttribute, aValue);
return false;
}
if (!didSetResult) {
aResult.SetTo(aValue);
}
return true;
}
return SVGElementBase::ParseAttribute(aNamespaceID, aAttribute, aValue,
aMaybeScriptedPrincipal, aResult);
}
void SVGElement::UnsetAttrInternal(int32_t aNamespaceID, nsAtom* aName,
bool aNotify) {
// XXXbz there's a bunch of redundancy here with AfterSetAttr.
// Maybe consolidate?
if (aNamespaceID == kNameSpaceID_None) {
// If this is an svg presentation attribute, remove declaration block to
// force an update
if (IsAttributeMapped(aName)) {
mContentDeclarationBlock = nullptr;
}
if (IsEventAttributeName(aName)) {
EventListenerManager* manager = GetExistingListenerManager();
if (manager) {
nsAtom* eventName = GetEventNameForAttr(aName);
manager->RemoveEventHandler(eventName);
}
return;
}
// Check if this is a length attribute going away
LengthAttributesInfo lenInfo = GetLengthInfo();
for (uint32_t i = 0; i < lenInfo.mLengthCount; i++) {
if (aName == lenInfo.mLengthInfo[i].mName) {
MaybeSerializeAttrBeforeRemoval(aName, aNotify);
lenInfo.Reset(i);
return;
}
}
// Check if this is a length list attribute going away
LengthListAttributesInfo lengthListInfo = GetLengthListInfo();
for (uint32_t i = 0; i < lengthListInfo.mLengthListCount; i++) {
if (aName == lengthListInfo.mLengthListInfo[i].mName) {
MaybeSerializeAttrBeforeRemoval(aName, aNotify);
lengthListInfo.Reset(i);
return;
}
}
// Check if this is a number list attribute going away
NumberListAttributesInfo numberListInfo = GetNumberListInfo();
for (uint32_t i = 0; i < numberListInfo.mNumberListCount; i++) {
if (aName == numberListInfo.mNumberListInfo[i].mName) {
MaybeSerializeAttrBeforeRemoval(aName, aNotify);
numberListInfo.Reset(i);
return;
}
}
// Check if this is a point list attribute going away
if (GetPointListAttrName() == aName) {
SVGAnimatedPointList* pointList = GetAnimatedPointList();
if (pointList) {
MaybeSerializeAttrBeforeRemoval(aName, aNotify);
pointList->ClearBaseValue();
return;
}
}
// Check if this is a path segment list attribute going away
if (GetPathDataAttrName() == aName) {
SVGAnimatedPathSegList* segList = GetAnimPathSegList();
if (segList) {
MaybeSerializeAttrBeforeRemoval(aName, aNotify);
segList->ClearBaseValue();
return;
}
}
// Check if this is a number attribute going away
NumberAttributesInfo numInfo = GetNumberInfo();
for (uint32_t i = 0; i < numInfo.mNumberCount; i++) {
if (aName == numInfo.mNumberInfo[i].mName) {
numInfo.Reset(i);
return;
}
}
// Check if this is a number pair attribute going away
NumberPairAttributesInfo numPairInfo = GetNumberPairInfo();
for (uint32_t i = 0; i < numPairInfo.mNumberPairCount; i++) {
if (aName == numPairInfo.mNumberPairInfo[i].mName) {
MaybeSerializeAttrBeforeRemoval(aName, aNotify);
numPairInfo.Reset(i);
return;
}
}
// Check if this is an integer attribute going away
IntegerAttributesInfo intInfo = GetIntegerInfo();
for (uint32_t i = 0; i < intInfo.mIntegerCount; i++) {
if (aName == intInfo.mIntegerInfo[i].mName) {
intInfo.Reset(i);
return;
}
}
// Check if this is an integer pair attribute going away
IntegerPairAttributesInfo intPairInfo = GetIntegerPairInfo();
for (uint32_t i = 0; i < intPairInfo.mIntegerPairCount; i++) {
if (aName == intPairInfo.mIntegerPairInfo[i].mName) {
MaybeSerializeAttrBeforeRemoval(aName, aNotify);
intPairInfo.Reset(i);
return;
}
}
// Check if this is a boolean attribute going away
BooleanAttributesInfo boolInfo = GetBooleanInfo();
for (uint32_t i = 0; i < boolInfo.mBooleanCount; i++) {
if (aName == boolInfo.mBooleanInfo[i].mName) {
boolInfo.Reset(i);
return;
}
}
// Check if this is an enum attribute going away
EnumAttributesInfo enumInfo = GetEnumInfo();
for (uint32_t i = 0; i < enumInfo.mEnumCount; i++) {
if (aName == enumInfo.mEnumInfo[i].mName) {
enumInfo.Reset(i);
return;
}
}
// Check if this is an orient attribute going away
if (aName == nsGkAtoms::orient) {
SVGAnimatedOrient* orient = GetAnimatedOrient();
if (orient) {
MaybeSerializeAttrBeforeRemoval(aName, aNotify);
orient->Init();
return;
}
}
// Check if this is a viewBox attribute going away
if (aName == nsGkAtoms::viewBox) {
SVGAnimatedViewBox* viewBox = GetAnimatedViewBox();
if (viewBox) {
MaybeSerializeAttrBeforeRemoval(aName, aNotify);
viewBox->Init();
return;
}
}
// Check if this is a preserveAspectRatio attribute going away
if (aName == nsGkAtoms::preserveAspectRatio) {
SVGAnimatedPreserveAspectRatio* preserveAspectRatio =
GetAnimatedPreserveAspectRatio();
if (preserveAspectRatio) {
MaybeSerializeAttrBeforeRemoval(aName, aNotify);
preserveAspectRatio->Init();
return;
}
}
// Check if this is a transform list attribute going away
if (GetTransformListAttrName() == aName) {
SVGAnimatedTransformList* transformList = GetAnimatedTransformList();
if (transformList) {
MaybeSerializeAttrBeforeRemoval(aName, aNotify);
transformList->ClearBaseValue();
return;
}
}
// Check for conditional processing attributes
nsCOMPtr<SVGTests> tests = do_QueryObject(this);
if (tests && tests->IsConditionalProcessingAttribute(aName)) {
MaybeSerializeAttrBeforeRemoval(aName, aNotify);
tests->UnsetAttr(aName);
return;
}
// Check if this is a string list attribute going away
StringListAttributesInfo stringListInfo = GetStringListInfo();
for (uint32_t i = 0; i < stringListInfo.mStringListCount; i++) {
if (aName == stringListInfo.mStringListInfo[i].mName) {
MaybeSerializeAttrBeforeRemoval(aName, aNotify);
stringListInfo.Reset(i);
return;
}
}
if (aName == nsGkAtoms::_class) {
mClassAttribute.Init();
return;
}
}
// Check if this is a string attribute going away
StringAttributesInfo stringInfo = GetStringInfo();
for (uint32_t i = 0; i < stringInfo.mStringCount; i++) {
if (aNamespaceID == stringInfo.mStringInfo[i].mNamespaceID &&
aName == stringInfo.mStringInfo[i].mName) {
stringInfo.Reset(i);
return;
}
}
}
nsresult SVGElement::BeforeSetAttr(int32_t aNamespaceID, nsAtom* aName,
const nsAttrValueOrString* aValue,
bool aNotify) {
if (!aValue) {
UnsetAttrInternal(aNamespaceID, aName, aNotify);
}
return SVGElementBase::BeforeSetAttr(aNamespaceID, aName, aValue, aNotify);
}
nsChangeHint SVGElement::GetAttributeChangeHint(const nsAtom* aAttribute,
int32_t aModType) const {
nsChangeHint retval =
SVGElementBase::GetAttributeChangeHint(aAttribute, aModType);
nsCOMPtr<SVGTests> tests = do_QueryObject(const_cast<SVGElement*>(this));
if (tests && tests->IsConditionalProcessingAttribute(aAttribute)) {
// It would be nice to only reconstruct the frame if the value returned by
// SVGTests::PassesConditionalProcessingTests has changed, but we don't
// know that
retval |= nsChangeHint_ReconstructFrame;
}
return retval;
}
bool SVGElement::IsNodeOfType(uint32_t aFlags) const { return false; }
void SVGElement::NodeInfoChanged(Document* aOldDoc) {
SVGElementBase::NodeInfoChanged(aOldDoc);
aOldDoc->UnscheduleSVGForPresAttrEvaluation(this);
mContentDeclarationBlock = nullptr;
OwnerDoc()->ScheduleSVGForPresAttrEvaluation(this);
}
NS_IMETHODIMP_(bool)
SVGElement::IsAttributeMapped(const nsAtom* name) const {
if (name == nsGkAtoms::lang) {
return true;
}
return SVGElementBase::IsAttributeMapped(name);
}
// PresentationAttributes-FillStroke
/* static */
const Element::MappedAttributeEntry SVGElement::sFillStrokeMap[] = {
{nsGkAtoms::fill},
{nsGkAtoms::fill_opacity},
{nsGkAtoms::fill_rule},
{nsGkAtoms::paint_order},
{nsGkAtoms::stroke},
{nsGkAtoms::stroke_dasharray},
{nsGkAtoms::stroke_dashoffset},
{nsGkAtoms::stroke_linecap},
{nsGkAtoms::stroke_linejoin},
{nsGkAtoms::stroke_miterlimit},
{nsGkAtoms::stroke_opacity},
{nsGkAtoms::stroke_width},
{nsGkAtoms::vector_effect},
{nullptr}};
// PresentationAttributes-Graphics
/* static */
const Element::MappedAttributeEntry SVGElement::sGraphicsMap[] = {
{nsGkAtoms::clip_path},
{nsGkAtoms::clip_rule},
{nsGkAtoms::colorInterpolation},
{nsGkAtoms::cursor},
{nsGkAtoms::display},
{nsGkAtoms::filter},
{nsGkAtoms::image_rendering},
{nsGkAtoms::mask},
{nsGkAtoms::opacity},
{nsGkAtoms::pointer_events},
{nsGkAtoms::shape_rendering},
{nsGkAtoms::text_rendering},
{nsGkAtoms::transform_origin},
{nsGkAtoms::visibility},
{nullptr}};
// PresentationAttributes-TextContentElements
/* static */
const Element::MappedAttributeEntry SVGElement::sTextContentElementsMap[] = {
// Properties that we don't support are commented out.
// { nsGkAtoms::alignment_baseline },
// { nsGkAtoms::baseline_shift },
{nsGkAtoms::direction},
{nsGkAtoms::dominant_baseline},
{nsGkAtoms::letter_spacing},
{nsGkAtoms::text_anchor},
{nsGkAtoms::text_decoration},
{nsGkAtoms::unicode_bidi},
{nsGkAtoms::word_spacing},
{nsGkAtoms::writing_mode},
{nullptr}};
// PresentationAttributes-FontSpecification
/* static */
const Element::MappedAttributeEntry SVGElement::sFontSpecificationMap[] = {
{nsGkAtoms::font_family}, {nsGkAtoms::font_size},
{nsGkAtoms::font_size_adjust}, {nsGkAtoms::font_stretch},
{nsGkAtoms::font_style}, {nsGkAtoms::font_variant},
{nsGkAtoms::fontWeight}, {nullptr}};
// PresentationAttributes-GradientStop
/* static */
const Element::MappedAttributeEntry SVGElement::sGradientStopMap[] = {
{nsGkAtoms::stop_color}, {nsGkAtoms::stop_opacity}, {nullptr}};
// PresentationAttributes-Viewports
/* static */
const Element::MappedAttributeEntry SVGElement::sViewportsMap[] = {
{nsGkAtoms::overflow}, {nsGkAtoms::clip}, {nullptr}};
// PresentationAttributes-Makers
/* static */
const Element::MappedAttributeEntry SVGElement::sMarkersMap[] = {
{nsGkAtoms::marker_end},
{nsGkAtoms::marker_mid},
{nsGkAtoms::marker_start},
{nullptr}};
// PresentationAttributes-Color
/* static */
const Element::MappedAttributeEntry SVGElement::sColorMap[] = {
{nsGkAtoms::color}, {nullptr}};
// PresentationAttributes-Filters
/* static */
const Element::MappedAttributeEntry SVGElement::sFiltersMap[] = {
{nsGkAtoms::colorInterpolationFilters}, {nullptr}};
// PresentationAttributes-feFlood
/* static */
const Element::MappedAttributeEntry SVGElement::sFEFloodMap[] = {
{nsGkAtoms::flood_color}, {nsGkAtoms::flood_opacity}, {nullptr}};
// PresentationAttributes-LightingEffects
/* static */
const Element::MappedAttributeEntry SVGElement::sLightingEffectsMap[] = {
{nsGkAtoms::lighting_color}, {nullptr}};
// PresentationAttributes-mask
/* static */
const Element::MappedAttributeEntry SVGElement::sMaskMap[] = {
{nsGkAtoms::mask_type}, {nullptr}};
//----------------------------------------------------------------------
// Element methods
// forwarded to Element implementations
//----------------------------------------------------------------------
SVGSVGElement* SVGElement::GetOwnerSVGElement() {
nsIContent* ancestor = GetFlattenedTreeParent();
while (ancestor && ancestor->IsSVGElement()) {
if (ancestor->IsSVGElement(nsGkAtoms::foreignObject)) {
return nullptr;
}
if (ancestor->IsSVGElement(nsGkAtoms::svg)) {
return static_cast<SVGSVGElement*>(ancestor);
}
ancestor = ancestor->GetFlattenedTreeParent();
}
// we don't have an ancestor <svg> element...
return nullptr;
}
SVGElement* SVGElement::GetViewportElement() {
return SVGContentUtils::GetNearestViewportElement(this);
}
already_AddRefed<DOMSVGAnimatedString> SVGElement::ClassName() {
return mClassAttribute.ToDOMAnimatedString(this);
}
/* static */
bool SVGElement::UpdateDeclarationBlockFromLength(
DeclarationBlock& aBlock, nsCSSPropertyID aPropId,
const SVGAnimatedLength& aLength, ValToUse aValToUse) {
aBlock.AssertMutable();
float value;
if (aValToUse == ValToUse::Anim) {
value = aLength.GetAnimValInSpecifiedUnits();
} else {
MOZ_ASSERT(aValToUse == ValToUse::Base);
value = aLength.GetBaseValInSpecifiedUnits();
}
// SVG parser doesn't check non-negativity of some parsed value,
// we should not pass those to CSS side.
if (value < 0 &&
SVGGeometryProperty::IsNonNegativeGeometryProperty(aPropId)) {
return false;
}
nsCSSUnit cssUnit = SVGGeometryProperty::SpecifiedUnitTypeToCSSUnit(
aLength.GetSpecifiedUnitType());
if (cssUnit == eCSSUnit_Percent) {
Servo_DeclarationBlock_SetPercentValue(aBlock.Raw(), aPropId,
value / 100.f);
} else {
Servo_DeclarationBlock_SetLengthValue(aBlock.Raw(), aPropId, value,
cssUnit);
}
return true;
}
//------------------------------------------------------------------------
// Helper class: MappedAttrParser, for parsing values of mapped attributes
namespace {
class MOZ_STACK_CLASS MappedAttrParser {
public:
MappedAttrParser(css::Loader* aLoader, nsIURI* aBaseURI,
SVGElement* aElement);
~MappedAttrParser();
// Parses a mapped attribute value.
void ParseMappedAttrValue(nsAtom* aMappedAttrName,
const nsAString& aMappedAttrValue);
void TellStyleAlreadyParsedResult(nsAtom const* aAtom,
SVGAnimatedLength const& aLength);
// If we've parsed any values for mapped attributes, this method returns the
// already_AddRefed css::Declaration that incorporates the parsed
// values. Otherwise, this method returns null.
already_AddRefed<DeclarationBlock> GetDeclarationBlock();
private:
// MEMBER DATA
// -----------
css::Loader* mLoader;
nsCOMPtr<nsIURI> mBaseURI;
// Declaration for storing parsed values (lazily initialized)
RefPtr<DeclarationBlock> mDecl;
// For reporting use counters
SVGElement* mElement;
};
MappedAttrParser::MappedAttrParser(css::Loader* aLoader, nsIURI* aBaseURI,
SVGElement* aElement)
: mLoader(aLoader), mBaseURI(aBaseURI), mElement(aElement) {}
MappedAttrParser::~MappedAttrParser() {
MOZ_ASSERT(!mDecl,
"If mDecl was initialized, it should have been returned via "
"GetDeclarationBlock (and had its pointer cleared)");
}
void MappedAttrParser::ParseMappedAttrValue(nsAtom* aMappedAttrName,
const nsAString& aMappedAttrValue) {
if (!mDecl) {
mDecl = new DeclarationBlock();
}
// Get the nsCSSPropertyID ID for our mapped attribute.
nsCSSPropertyID propertyID =
nsCSSProps::LookupProperty(nsAtomCString(aMappedAttrName));
if (propertyID != eCSSProperty_UNKNOWN) {
bool changed = false; // outparam for ParseProperty.
NS_ConvertUTF16toUTF8 value(aMappedAttrValue);
// FIXME (bug 1343964): Figure out a better solution for sending the base
// uri to servo
nsCOMPtr<nsIReferrerInfo> referrerInfo =
ReferrerInfo::CreateForSVGResources(mElement->OwnerDoc());
RefPtr<URLExtraData> data =
new URLExtraData(mBaseURI, referrerInfo, mElement->NodePrincipal());
changed = Servo_DeclarationBlock_SetPropertyById(
mDecl->Raw(), propertyID, &value, false, data,
ParsingMode::AllowUnitlessLength,
mElement->OwnerDoc()->GetCompatibilityMode(), mLoader, {});
// TODO(emilio): If we want to record these from CSSOM more generally, we
// can pass the document use counters down the FFI call. For now manually
// count them.
if (changed && StaticPrefs::layout_css_use_counters_enabled()) {
UseCounter useCounter = nsCSSProps::UseCounterFor(propertyID);
MOZ_ASSERT(useCounter != eUseCounter_UNKNOWN);
mElement->OwnerDoc()->SetUseCounter(useCounter);
}
return;
}
MOZ_ASSERT(aMappedAttrName == nsGkAtoms::lang,
"Only 'lang' should be unrecognized!");
// CSS parser doesn't know about 'lang', so we need to handle it specially.
if (aMappedAttrName == nsGkAtoms::lang) {
propertyID = eCSSProperty__x_lang;
RefPtr<nsAtom> atom = NS_Atomize(aMappedAttrValue);
Servo_DeclarationBlock_SetIdentStringValue(mDecl->Raw(), propertyID, atom);
}
}
void MappedAttrParser::TellStyleAlreadyParsedResult(
nsAtom const* aAtom, SVGAnimatedLength const& aLength) {
if (!mDecl) {
mDecl = new DeclarationBlock();
}
nsCSSPropertyID propertyID = nsCSSProps::LookupProperty(nsAtomCString(aAtom));
SVGElement::UpdateDeclarationBlockFromLength(*mDecl, propertyID, aLength,
SVGElement::ValToUse::Base);
}
already_AddRefed<DeclarationBlock> MappedAttrParser::GetDeclarationBlock() {
return mDecl.forget();
}
} // namespace
//----------------------------------------------------------------------
// Implementation Helpers:
void SVGElement::UpdateContentDeclarationBlock() {
NS_ASSERTION(!mContentDeclarationBlock,
"we already have a content declaration block");
uint32_t attrCount = mAttrs.AttrCount();
if (!attrCount) {
// nothing to do
return;
}
Document* doc = OwnerDoc();
MappedAttrParser mappedAttrParser(doc->CSSLoader(), GetBaseURI(), this);
bool lengthAffectsStyle =
SVGGeometryProperty::ElementMapsLengthsToStyle(this);
for (uint32_t i = 0; i < attrCount; ++i) {
const nsAttrName* attrName = mAttrs.AttrNameAt(i);
if (!attrName->IsAtom() || !IsAttributeMapped(attrName->Atom())) continue;
if (attrName->NamespaceID() != kNameSpaceID_None &&
!attrName->Equals(nsGkAtoms::lang, kNameSpaceID_XML)) {
continue;
}
if (attrName->Equals(nsGkAtoms::lang, kNameSpaceID_None) &&
HasAttr(kNameSpaceID_XML, nsGkAtoms::lang)) {
continue; // xml:lang has precedence
}
if (lengthAffectsStyle) {
auto const* length = GetAnimatedLength(attrName->Atom());
if (length && length->HasBaseVal()) {
// This is an element with geometry property set via SVG attribute,
// and the attribute is already successfully parsed. We want to go
// through the optimized path to tell the style system the result
// directly, rather than let it parse the same thing again.
mappedAttrParser.TellStyleAlreadyParsedResult(attrName->Atom(),
*length);
continue;
}
}
nsAutoString value;
mAttrs.AttrAt(i)->ToString(value);
mappedAttrParser.ParseMappedAttrValue(attrName->Atom(), value);
}
mContentDeclarationBlock = mappedAttrParser.GetDeclarationBlock();
}
const DeclarationBlock* SVGElement::GetContentDeclarationBlock() const {
return mContentDeclarationBlock;
}
/**
* Helper methods for the type-specific WillChangeXXX methods.
*
* This method sends out appropriate pre-change notifications so that selector
* restyles (e.g. due to changes that cause |elem[attr="val"]| to start/stop
* matching) work, and it returns an nsAttrValue that _may_ contain the
* attribute's pre-change value.
*
* The nsAttrValue returned by this method depends on whether there are
* mutation event listeners listening for changes to this element's attributes.
* If not, then the object returned is empty. If there are, then the
* nsAttrValue returned contains a serialized copy of the attribute's value
* prior to the change, and this object should be passed to the corresponding
* DidChangeXXX method call (assuming a WillChangeXXX call is required for the
* SVG type - see comment below). This is necessary so that the 'prevValue'
* property of the mutation event that is dispatched will correctly contain the
* old value.
*
* The reason we need to serialize the old value if there are mutation
* event listeners is because the underlying nsAttrValue for the attribute
* points directly to a parsed representation of the attribute (e.g. an
* SVGAnimatedLengthList*) that is a member of the SVG element. That object
* will have changed by the time DidChangeXXX has been called, so without the
* serialization of the old attribute value that we provide, DidChangeXXX
* would have no way to get the old value to pass to SetAttrAndNotify.
*
* We only return the old value when there are mutation event listeners because
* it's not needed otherwise, and because it's expensive to serialize the old
* value. This is especially true for list type attributes, which may be built
* up via the SVG DOM resulting in a large number of Will/DidModifyXXX calls
* before the script finally finishes setting the attribute.
*
* Note that unlike using SetParsedAttr, using Will/DidChangeXXX does NOT check
* and filter out redundant changes. Before calling WillChangeXXX, the caller
* should check whether the new and old values are actually the same, and skip
* calling Will/DidChangeXXX if they are.
*
* Also note that not all SVG types use this scheme. For types that can be
* represented by an nsAttrValue without pointing back to an SVG object (e.g.
* enums, booleans, integers) we can simply use SetParsedAttr which will do all
* of the above for us. For such types there is no matching WillChangeXXX
* method, only DidChangeXXX which calls SetParsedAttr.
*/
nsAttrValue SVGElement::WillChangeValue(
nsAtom* aName, const mozAutoDocUpdate& aProofOfUpdate) {
// We need an empty attr value:
// a) to pass to BeforeSetAttr when GetParsedAttr returns nullptr
// b) to store the old value in the case we have mutation listeners
//
// We can use the same value for both purposes, because if GetParsedAttr
// returns non-null its return value is what will get passed to BeforeSetAttr,
// not matter what our mutation listener situation is.
//
// Also, we should be careful to always return this value to benefit from
// return value optimization.
nsAttrValue emptyOrOldAttrValue;
const nsAttrValue* attrValue = GetParsedAttr(aName);
// We only need to set the old value if we have listeners since otherwise it
// isn't used.
if (attrValue && nsContentUtils::HasMutationListeners(
this, NS_EVENT_BITS_MUTATION_ATTRMODIFIED, this)) {
emptyOrOldAttrValue.SetToSerialized(*attrValue);
}
uint8_t modType =
attrValue ? static_cast<uint8_t>(MutationEvent_Binding::MODIFICATION)
: static_cast<uint8_t>(MutationEvent_Binding::ADDITION);
MutationObservers::NotifyAttributeWillChange(this, kNameSpaceID_None, aName,
modType);
// This is not strictly correct--the attribute value parameter for
// BeforeSetAttr should reflect the value that *will* be set but that implies
// allocating, e.g. an extra SVGAnimatedLength, and isn't necessary at the
// moment since no SVG elements overload BeforeSetAttr. For now we just pass
// the current value.
nsAttrValueOrString attrStringOrValue(attrValue ? *attrValue
: emptyOrOldAttrValue);
DebugOnly<nsresult> rv = BeforeSetAttr(
kNameSpaceID_None, aName, &attrStringOrValue, kNotifyDocumentObservers);
// SVG elements aren't expected to overload BeforeSetAttr in such a way that
// it may fail. So long as this is the case we don't need to check and pass on
// the return value which simplifies the calling code significantly.
MOZ_ASSERT(NS_SUCCEEDED(rv), "Unexpected failure from BeforeSetAttr");
return emptyOrOldAttrValue;
}
/**
* Helper methods for the type-specific DidChangeXXX methods.
*
* aEmptyOrOldValue will normally be the object returned from the corresponding
* WillChangeXXX call. This is because:
* a) WillChangeXXX will ensure the object is set when we have mutation
* listeners, and
* b) WillChangeXXX will ensure the object represents a serialized version of
* the old attribute value so that the value doesn't change when the
* underlying SVG type is updated.
*
* aNewValue is replaced with the old value.
*/
void SVGElement::DidChangeValue(nsAtom* aName,
const nsAttrValue& aEmptyOrOldValue,
nsAttrValue& aNewValue,
const mozAutoDocUpdate& aProofOfUpdate) {
bool hasListeners = nsContentUtils::HasMutationListeners(
this, NS_EVENT_BITS_MUTATION_ATTRMODIFIED, this);
uint8_t modType =
HasAttr(kNameSpaceID_None, aName)
? static_cast<uint8_t>(MutationEvent_Binding::MODIFICATION)
: static_cast<uint8_t>(MutationEvent_Binding::ADDITION);
// XXX Really, the fourth argument to SetAttrAndNotify should be null if
// aEmptyOrOldValue does not represent the actual previous value of the
// attribute, but currently SVG elements do not even use the old attribute
// value in |AfterSetAttr|, so this should be ok.
SetAttrAndNotify(kNameSpaceID_None, aName, nullptr, &aEmptyOrOldValue,
aNewValue, nullptr, modType, hasListeners,
kNotifyDocumentObservers, kCallAfterSetAttr,
GetComposedDoc(), aProofOfUpdate);
}
void SVGElement::MaybeSerializeAttrBeforeRemoval(nsAtom* aName, bool aNotify) {
if (!aNotify || !nsContentUtils::HasMutationListeners(
this, NS_EVENT_BITS_MUTATION_ATTRMODIFIED, this)) {
return;
}
const nsAttrValue* attrValue = mAttrs.GetAttr(aName);
if (!attrValue) return;
nsAutoString serializedValue;
attrValue->ToString(serializedValue);
nsAttrValue oldAttrValue(serializedValue);
bool oldValueSet;
mAttrs.SetAndSwapAttr(aName, oldAttrValue, &oldValueSet);
}
/* static */
nsAtom* SVGElement::GetEventNameForAttr(nsAtom* aAttr) {
if (aAttr == nsGkAtoms::onload) return nsGkAtoms::onSVGLoad;
if (aAttr == nsGkAtoms::onunload) return nsGkAtoms::onSVGUnload;
if (aAttr == nsGkAtoms::onresize) return nsGkAtoms::onSVGResize;
if (aAttr == nsGkAtoms::onscroll) return nsGkAtoms::onSVGScroll;
if (aAttr == nsGkAtoms::onzoom) return nsGkAtoms::onSVGZoom;
if (aAttr == nsGkAtoms::onbegin) return nsGkAtoms::onbeginEvent;
if (aAttr == nsGkAtoms::onrepeat) return nsGkAtoms::onrepeatEvent;
if (aAttr == nsGkAtoms::onend) return nsGkAtoms::onendEvent;
return SVGElementBase::GetEventNameForAttr(aAttr);
}
SVGViewportElement* SVGElement::GetCtx() const {
return SVGContentUtils::GetNearestViewportElement(this);
}
/* virtual */
gfxMatrix SVGElement::PrependLocalTransformsTo(const gfxMatrix& aMatrix,
SVGTransformTypes aWhich) const {
return aMatrix;
}
SVGElement::LengthAttributesInfo SVGElement::GetLengthInfo() {
return LengthAttributesInfo(nullptr, nullptr, 0);
}
void SVGElement::LengthAttributesInfo::Reset(uint8_t aAttrEnum) {
mLengths[aAttrEnum].Init(mLengthInfo[aAttrEnum].mCtxType, aAttrEnum,
mLengthInfo[aAttrEnum].mDefaultValue,
mLengthInfo[aAttrEnum].mDefaultUnitType);
}
void SVGElement::SetLength(nsAtom* aName, const SVGAnimatedLength& aLength) {
LengthAttributesInfo lengthInfo = GetLengthInfo();
for (uint32_t i = 0; i < lengthInfo.mLengthCount; i++) {
if (aName == lengthInfo.mLengthInfo[i].mName) {
lengthInfo.mLengths[i] = aLength;
DidAnimateLength(i);
return;
}
}
MOZ_ASSERT(false, "no length found to set");
}
nsAttrValue SVGElement::WillChangeLength(
uint8_t aAttrEnum, const mozAutoDocUpdate& aProofOfUpdate) {
return WillChangeValue(GetLengthInfo().mLengthInfo[aAttrEnum].mName,
aProofOfUpdate);
}
void SVGElement::DidChangeLength(uint8_t aAttrEnum,
const nsAttrValue& aEmptyOrOldValue,
const mozAutoDocUpdate& aProofOfUpdate) {
LengthAttributesInfo info = GetLengthInfo();
NS_ASSERTION(info.mLengthCount > 0,
"DidChangeLength on element with no length attribs");
NS_ASSERTION(aAttrEnum < info.mLengthCount, "aAttrEnum out of range");
nsAttrValue newValue;
newValue.SetTo(info.mLengths[aAttrEnum], nullptr);
DidChangeValue(info.mLengthInfo[aAttrEnum].mName, aEmptyOrOldValue, newValue,
aProofOfUpdate);
}
void SVGElement::DidAnimateLength(uint8_t aAttrEnum) {
// We need to do this here. Normally the SMIL restyle would also cause us to
// do this from DidSetComputedStyle, but we don't have that guarantee if our
// frame gets reconstructed.
ClearAnyCachedPath();
if (SVGGeometryProperty::ElementMapsLengthsToStyle(this)) {
nsCSSPropertyID propId =
SVGGeometryProperty::AttrEnumToCSSPropId(this, aAttrEnum);
SMILOverrideStyle()->SetSMILValue(propId,
GetLengthInfo().mLengths[aAttrEnum]);
return;
}
nsIFrame* frame = GetPrimaryFrame();
if (frame) {
LengthAttributesInfo info = GetLengthInfo();
frame->AttributeChanged(kNameSpaceID_None,
info.mLengthInfo[aAttrEnum].mName,
MutationEvent_Binding::SMIL);
}
}
SVGAnimatedLength* SVGElement::GetAnimatedLength(const nsAtom* aAttrName) {
LengthAttributesInfo lengthInfo = GetLengthInfo();
for (uint32_t i = 0; i < lengthInfo.mLengthCount; i++) {
if (aAttrName == lengthInfo.mLengthInfo[i].mName) {
return &lengthInfo.mLengths[i];
}
}
return nullptr;
}
void SVGElement::GetAnimatedLengthValues(float* aFirst, ...) {
LengthAttributesInfo info = GetLengthInfo();
NS_ASSERTION(info.mLengthCount > 0,
"GetAnimatedLengthValues on element with no length attribs");
SVGViewportElement* ctx = nullptr;
float* f = aFirst;
uint32_t i = 0;
va_list args;
va_start(args, aFirst);
while (f && i < info.mLengthCount) {
uint8_t type = info.mLengths[i].GetSpecifiedUnitType();
if (!ctx) {
if (type != SVGLength_Binding::SVG_LENGTHTYPE_NUMBER &&
type != SVGLength_Binding::SVG_LENGTHTYPE_PX)
ctx = GetCtx();
}
if (type == SVGLength_Binding::SVG_LENGTHTYPE_EMS ||
type == SVGLength_Binding::SVG_LENGTHTYPE_EXS)
*f = info.mLengths[i++].GetAnimValue(this);
else
*f = info.mLengths[i++].GetAnimValue(ctx);
f = va_arg(args, float*);
}
va_end(args);
}
SVGElement::LengthListAttributesInfo SVGElement::GetLengthListInfo() {
return LengthListAttributesInfo(nullptr, nullptr, 0);
}
void SVGElement::LengthListAttributesInfo::Reset(uint8_t aAttrEnum) {
mLengthLists[aAttrEnum].ClearBaseValue(aAttrEnum);
// caller notifies
}
nsAttrValue SVGElement::WillChangeLengthList(
uint8_t aAttrEnum, const mozAutoDocUpdate& aProofOfUpdate) {
return WillChangeValue(GetLengthListInfo().mLengthListInfo[aAttrEnum].mName,
aProofOfUpdate);
}
void SVGElement::DidChangeLengthList(uint8_t aAttrEnum,
const nsAttrValue& aEmptyOrOldValue,
const mozAutoDocUpdate& aProofOfUpdate) {
LengthListAttributesInfo info = GetLengthListInfo();
NS_ASSERTION(info.mLengthListCount > 0,
"DidChangeLengthList on element with no length list attribs");
NS_ASSERTION(aAttrEnum < info.mLengthListCount, "aAttrEnum out of range");
nsAttrValue newValue;
newValue.SetTo(info.mLengthLists[aAttrEnum].GetBaseValue(), nullptr);
DidChangeValue(info.mLengthListInfo[aAttrEnum].mName, aEmptyOrOldValue,
newValue, aProofOfUpdate);
}
void SVGElement::DidAnimateLengthList(uint8_t aAttrEnum) {
nsIFrame* frame = GetPrimaryFrame();
if (frame) {
LengthListAttributesInfo info = GetLengthListInfo();
frame->AttributeChanged(kNameSpaceID_None,
info.mLengthListInfo[aAttrEnum].mName,
MutationEvent_Binding::SMIL);
}
}
void SVGElement::GetAnimatedLengthListValues(SVGUserUnitList* aFirst, ...) {
LengthListAttributesInfo info = GetLengthListInfo();
NS_ASSERTION(
info.mLengthListCount > 0,
"GetAnimatedLengthListValues on element with no length list attribs");
SVGUserUnitList* list = aFirst;
uint32_t i = 0;
va_list args;
va_start(args, aFirst);
while (list && i < info.mLengthListCount) {
list->Init(&(info.mLengthLists[i].GetAnimValue()), this,
info.mLengthListInfo[i].mAxis);
++i;
list = va_arg(args, SVGUserUnitList*);
}
va_end(args);
}
SVGAnimatedLengthList* SVGElement::GetAnimatedLengthList(uint8_t aAttrEnum) {
LengthListAttributesInfo info = GetLengthListInfo();
if (aAttrEnum < info.mLengthListCount) {
return &(info.mLengthLists[aAttrEnum]);
}
MOZ_ASSERT_UNREACHABLE("Bad attrEnum");
return nullptr;
}
SVGElement::NumberListAttributesInfo SVGElement::GetNumberListInfo() {
return NumberListAttributesInfo(nullptr, nullptr, 0);
}
void SVGElement::NumberListAttributesInfo::Reset(uint8_t aAttrEnum) {
MOZ_ASSERT(aAttrEnum < mNumberListCount, "Bad attr enum");
mNumberLists[aAttrEnum].ClearBaseValue(aAttrEnum);
// caller notifies
}
nsAttrValue SVGElement::WillChangeNumberList(
uint8_t aAttrEnum, const mozAutoDocUpdate& aProofOfUpdate) {
return WillChangeValue(GetNumberListInfo().mNumberListInfo[aAttrEnum].mName,
aProofOfUpdate);
}
void SVGElement::DidChangeNumberList(uint8_t aAttrEnum,
const nsAttrValue& aEmptyOrOldValue,
const mozAutoDocUpdate& aProofOfUpdate) {
NumberListAttributesInfo info = GetNumberListInfo();
MOZ_ASSERT(info.mNumberListCount > 0,
"DidChangeNumberList on element with no number list attribs");
MOZ_ASSERT(aAttrEnum < info.mNumberListCount, "aAttrEnum out of range");
nsAttrValue newValue;
newValue.SetTo(info.mNumberLists[aAttrEnum].GetBaseValue(), nullptr);
DidChangeValue(info.mNumberListInfo[aAttrEnum].mName, aEmptyOrOldValue,
newValue, aProofOfUpdate);
}
void SVGElement::DidAnimateNumberList(uint8_t aAttrEnum) {
nsIFrame* frame = GetPrimaryFrame();
if (frame) {
NumberListAttributesInfo info = GetNumberListInfo();
MOZ_ASSERT(aAttrEnum < info.mNumberListCount, "aAttrEnum out of range");
frame->AttributeChanged(kNameSpaceID_None,
info.mNumberListInfo[aAttrEnum].mName,
MutationEvent_Binding::SMIL);
}
}
SVGAnimatedNumberList* SVGElement::GetAnimatedNumberList(uint8_t aAttrEnum) {
NumberListAttributesInfo info = GetNumberListInfo();
if (aAttrEnum < info.mNumberListCount) {
return &(info.mNumberLists[aAttrEnum]);
}
MOZ_ASSERT(false, "Bad attrEnum");
return nullptr;
}
SVGAnimatedNumberList* SVGElement::GetAnimatedNumberList(nsAtom* aAttrName) {
NumberListAttributesInfo info = GetNumberListInfo();
for (uint32_t i = 0; i < info.mNumberListCount; i++) {
if (aAttrName == info.mNumberListInfo[i].mName) {
return &info.mNumberLists[i];
}
}
MOZ_ASSERT(false, "Bad caller");
return nullptr;
}
nsAttrValue SVGElement::WillChangePointList(
const mozAutoDocUpdate& aProofOfUpdate) {
MOZ_ASSERT(GetPointListAttrName(), "Changing non-existent point list?");
return WillChangeValue(GetPointListAttrName(), aProofOfUpdate);
}
void SVGElement::DidChangePointList(const nsAttrValue& aEmptyOrOldValue,
const mozAutoDocUpdate& aProofOfUpdate) {
MOZ_ASSERT(GetPointListAttrName(), "Changing non-existent point list?");
nsAttrValue newValue;
newValue.SetTo(GetAnimatedPointList()->GetBaseValue(), nullptr);
DidChangeValue(GetPointListAttrName(), aEmptyOrOldValue, newValue,
aProofOfUpdate);
}
void SVGElement::DidAnimatePointList() {
MOZ_ASSERT(GetPointListAttrName(), "Animating non-existent path data?");
ClearAnyCachedPath();
nsIFrame* frame = GetPrimaryFrame();
if (frame) {
frame->AttributeChanged(kNameSpaceID_None, GetPointListAttrName(),
MutationEvent_Binding::SMIL);
}
}
nsAttrValue SVGElement::WillChangePathSegList(
const mozAutoDocUpdate& aProofOfUpdate) {
MOZ_ASSERT(GetPathDataAttrName(), "Changing non-existent path seg list?");
return WillChangeValue(GetPathDataAttrName(), aProofOfUpdate);
}
void SVGElement::DidChangePathSegList(const nsAttrValue& aEmptyOrOldValue,
const mozAutoDocUpdate& aProofOfUpdate) {
MOZ_ASSERT(GetPathDataAttrName(), "Changing non-existent path seg list?");
nsAttrValue newValue;
newValue.SetTo(GetAnimPathSegList()->GetBaseValue(), nullptr);
DidChangeValue(GetPathDataAttrName(), aEmptyOrOldValue, newValue,
aProofOfUpdate);
}
void SVGElement::DidAnimatePathSegList() {
MOZ_ASSERT(GetPathDataAttrName(), "Animating non-existent path data?");
ClearAnyCachedPath();
nsIFrame* frame = GetPrimaryFrame();
if (frame) {
frame->AttributeChanged(kNameSpaceID_None, GetPathDataAttrName(),
MutationEvent_Binding::SMIL);
}
}
SVGElement::NumberAttributesInfo SVGElement::GetNumberInfo() {
return NumberAttributesInfo(nullptr, nullptr, 0);
}
void SVGElement::NumberAttributesInfo::Reset(uint8_t aAttrEnum) {
mNumbers[aAttrEnum].Init(aAttrEnum, mNumberInfo[aAttrEnum].mDefaultValue);
}
void SVGElement::DidChangeNumber(uint8_t aAttrEnum) {
NumberAttributesInfo info = GetNumberInfo();
NS_ASSERTION(info.mNumberCount > 0,
"DidChangeNumber on element with no number attribs");
NS_ASSERTION(aAttrEnum < info.mNumberCount, "aAttrEnum out of range");
nsAttrValue attrValue;
attrValue.SetTo(info.mNumbers[aAttrEnum].GetBaseValue(), nullptr);
SetParsedAttr(kNameSpaceID_None, info.mNumberInfo[aAttrEnum].mName, nullptr,
attrValue, true);
}
void SVGElement::DidAnimateNumber(uint8_t aAttrEnum) {
nsIFrame* frame = GetPrimaryFrame();
if (frame) {
NumberAttributesInfo info = GetNumberInfo();
frame->AttributeChanged(kNameSpaceID_None,
info.mNumberInfo[aAttrEnum].mName,
MutationEvent_Binding::SMIL);
}
}
void SVGElement::GetAnimatedNumberValues(float* aFirst, ...) {
NumberAttributesInfo info = GetNumberInfo();
NS_ASSERTION(info.mNumberCount > 0,
"GetAnimatedNumberValues on element with no number attribs");
float* f = aFirst;
uint32_t i = 0;
va_list args;
va_start(args, aFirst);
while (f && i < info.mNumberCount) {
*f = info.mNumbers[i++].GetAnimValue();
f = va_arg(args, float*);
}
va_end(args);
}
SVGElement::NumberPairAttributesInfo SVGElement::GetNumberPairInfo() {
return NumberPairAttributesInfo(nullptr, nullptr, 0);
}
void SVGElement::NumberPairAttributesInfo::Reset(uint8_t aAttrEnum) {
mNumberPairs[aAttrEnum].Init(aAttrEnum,
mNumberPairInfo[aAttrEnum].mDefaultValue1,
mNumberPairInfo[aAttrEnum].mDefaultValue2);
}
nsAttrValue SVGElement::WillChangeNumberPair(uint8_t aAttrEnum) {
mozAutoDocUpdate updateBatch(GetComposedDoc(), kDontNotifyDocumentObservers);
return WillChangeValue(GetNumberPairInfo().mNumberPairInfo[aAttrEnum].mName,
updateBatch);
}
void SVGElement::DidChangeNumberPair(uint8_t aAttrEnum,
const nsAttrValue& aEmptyOrOldValue) {
NumberPairAttributesInfo info = GetNumberPairInfo();
NS_ASSERTION(info.mNumberPairCount > 0,
"DidChangePairNumber on element with no number pair attribs");
NS_ASSERTION(aAttrEnum < info.mNumberPairCount, "aAttrEnum out of range");
nsAttrValue newValue;
newValue.SetTo(info.mNumberPairs[aAttrEnum], nullptr);
mozAutoDocUpdate updateBatch(GetComposedDoc(), kNotifyDocumentObservers);
DidChangeValue(info.mNumberPairInfo[aAttrEnum].mName, aEmptyOrOldValue,
newValue, updateBatch);
}
void SVGElement::DidAnimateNumberPair(uint8_t aAttrEnum) {
nsIFrame* frame = GetPrimaryFrame();
if (frame) {
NumberPairAttributesInfo info = GetNumberPairInfo();
frame->AttributeChanged(kNameSpaceID_None,
info.mNumberPairInfo[aAttrEnum].mName,
MutationEvent_Binding::SMIL);
}
}
SVGElement::IntegerAttributesInfo SVGElement::GetIntegerInfo() {
return IntegerAttributesInfo(nullptr, nullptr, 0);
}
void SVGElement::IntegerAttributesInfo::Reset(uint8_t aAttrEnum) {
mIntegers[aAttrEnum].Init(aAttrEnum, mIntegerInfo[aAttrEnum].mDefaultValue);
}
void SVGElement::DidChangeInteger(uint8_t aAttrEnum) {
IntegerAttributesInfo info = GetIntegerInfo();
NS_ASSERTION(info.mIntegerCount > 0,
"DidChangeInteger on element with no integer attribs");
NS_ASSERTION(aAttrEnum < info.mIntegerCount, "aAttrEnum out of range");
nsAttrValue attrValue;
attrValue.SetTo(info.mIntegers[aAttrEnum].GetBaseValue(), nullptr);
SetParsedAttr(kNameSpaceID_None, info.mIntegerInfo[aAttrEnum].mName, nullptr,
attrValue, true);
}
void SVGElement::DidAnimateInteger(uint8_t aAttrEnum) {
nsIFrame* frame = GetPrimaryFrame();
if (frame) {
IntegerAttributesInfo info = GetIntegerInfo();
frame->AttributeChanged(kNameSpaceID_None,
info.mIntegerInfo[aAttrEnum].mName,
MutationEvent_Binding::SMIL);
}
}
void SVGElement::GetAnimatedIntegerValues(int32_t* aFirst, ...) {
IntegerAttributesInfo info = GetIntegerInfo();
NS_ASSERTION(info.mIntegerCount > 0,
"GetAnimatedIntegerValues on element with no integer attribs");
int32_t* n = aFirst;
uint32_t i = 0;
va_list args;
va_start(args, aFirst);
while (n && i < info.mIntegerCount) {
*n = info.mIntegers[i++].GetAnimValue();
n = va_arg(args, int32_t*);
}
va_end(args);
}
SVGElement::IntegerPairAttributesInfo SVGElement::GetIntegerPairInfo() {
return IntegerPairAttributesInfo(nullptr, nullptr, 0);
}
void SVGElement::IntegerPairAttributesInfo::Reset(uint8_t aAttrEnum) {
mIntegerPairs[aAttrEnum].Init(aAttrEnum,
mIntegerPairInfo[aAttrEnum].mDefaultValue1,
mIntegerPairInfo[aAttrEnum].mDefaultValue2);
}
nsAttrValue SVGElement::WillChangeIntegerPair(
uint8_t aAttrEnum, const mozAutoDocUpdate& aProofOfUpdate) {
return WillChangeValue(GetIntegerPairInfo().mIntegerPairInfo[aAttrEnum].mName,
aProofOfUpdate);
}
void SVGElement::DidChangeIntegerPair(uint8_t aAttrEnum,
const nsAttrValue& aEmptyOrOldValue,
const mozAutoDocUpdate& aProofOfUpdate) {
IntegerPairAttributesInfo info = GetIntegerPairInfo();
NS_ASSERTION(info.mIntegerPairCount > 0,
"DidChangeIntegerPair on element with no integer pair attribs");
NS_ASSERTION(aAttrEnum < info.mIntegerPairCount, "aAttrEnum out of range");
nsAttrValue newValue;
newValue.SetTo(info.mIntegerPairs[aAttrEnum], nullptr);
DidChangeValue(info.mIntegerPairInfo[aAttrEnum].mName, aEmptyOrOldValue,
newValue, aProofOfUpdate);
}
void SVGElement::DidAnimateIntegerPair(uint8_t aAttrEnum) {
nsIFrame* frame = GetPrimaryFrame();
if (frame) {
IntegerPairAttributesInfo info = GetIntegerPairInfo();
frame->AttributeChanged(kNameSpaceID_None,
info.mIntegerPairInfo[aAttrEnum].mName,
MutationEvent_Binding::SMIL);
}
}
SVGElement::BooleanAttributesInfo SVGElement::GetBooleanInfo() {
return BooleanAttributesInfo(nullptr, nullptr, 0);
}
void SVGElement::BooleanAttributesInfo::Reset(uint8_t aAttrEnum) {
mBooleans[aAttrEnum].Init(aAttrEnum, mBooleanInfo[aAttrEnum].mDefaultValue);
}
void SVGElement::DidChangeBoolean(uint8_t aAttrEnum) {
BooleanAttributesInfo info = GetBooleanInfo();
NS_ASSERTION(info.mBooleanCount > 0,
"DidChangeBoolean on element with no boolean attribs");
NS_ASSERTION(aAttrEnum < info.mBooleanCount, "aAttrEnum out of range");
nsAttrValue attrValue(info.mBooleans[aAttrEnum].GetBaseValueAtom());
SetParsedAttr(kNameSpaceID_None, info.mBooleanInfo[aAttrEnum].mName, nullptr,
attrValue, true);
}
void SVGElement::DidAnimateBoolean(uint8_t aAttrEnum) {
nsIFrame* frame = GetPrimaryFrame();
if (frame) {
BooleanAttributesInfo info = GetBooleanInfo();
frame->AttributeChanged(kNameSpaceID_None,
info.mBooleanInfo[aAttrEnum].mName,
MutationEvent_Binding::SMIL);
}
}
SVGElement::EnumAttributesInfo SVGElement::GetEnumInfo() {
return EnumAttributesInfo(nullptr, nullptr, 0);
}
void SVGElement::EnumAttributesInfo::Reset(uint8_t aAttrEnum) {
mEnums[aAttrEnum].Init(aAttrEnum, mEnumInfo[aAttrEnum].mDefaultValue);
}
void SVGElement::EnumAttributesInfo::SetUnknownValue(uint8_t aAttrEnum) {
// Fortunately in SVG every enum's unknown value is 0
mEnums[aAttrEnum].Init(aAttrEnum, 0);
}
void SVGElement::DidChangeEnum(uint8_t aAttrEnum) {
EnumAttributesInfo info = GetEnumInfo();
NS_ASSERTION(info.mEnumCount > 0,
"DidChangeEnum on element with no enum attribs");
NS_ASSERTION(aAttrEnum < info.mEnumCount, "aAttrEnum out of range");
nsAttrValue attrValue(info.mEnums[aAttrEnum].GetBaseValueAtom(this));
SetParsedAttr(kNameSpaceID_None, info.mEnumInfo[aAttrEnum].mName, nullptr,
attrValue, true);
}
void SVGElement::DidAnimateEnum(uint8_t aAttrEnum) {
nsIFrame* frame = GetPrimaryFrame();
if (frame) {
EnumAttributesInfo info = GetEnumInfo();
frame->AttributeChanged(kNameSpaceID_None, info.mEnumInfo[aAttrEnum].mName,
MutationEvent_Binding::SMIL);
}
}
SVGAnimatedOrient* SVGElement::GetAnimatedOrient() { return nullptr; }
nsAttrValue SVGElement::WillChangeOrient(
const mozAutoDocUpdate& aProofOfUpdate) {
return WillChangeValue(nsGkAtoms::orient, aProofOfUpdate);
}
void SVGElement::DidChangeOrient(const nsAttrValue& aEmptyOrOldValue,
const mozAutoDocUpdate& aProofOfUpdate) {
SVGAnimatedOrient* orient = GetAnimatedOrient();
NS_ASSERTION(orient, "DidChangeOrient on element with no orient attrib");
nsAttrValue newValue;
newValue.SetTo(*orient, nullptr);
DidChangeValue(nsGkAtoms::orient, aEmptyOrOldValue, newValue, aProofOfUpdate);
}
void SVGElement::DidAnimateOrient() {
nsIFrame* frame = GetPrimaryFrame();
if (frame) {
frame->AttributeChanged(kNameSpaceID_None, nsGkAtoms::orient,
MutationEvent_Binding::SMIL);
}
}
SVGAnimatedViewBox* SVGElement::GetAnimatedViewBox() { return nullptr; }
nsAttrValue SVGElement::WillChangeViewBox(
const mozAutoDocUpdate& aProofOfUpdate) {
return WillChangeValue(nsGkAtoms::viewBox, aProofOfUpdate);
}
void SVGElement::DidChangeViewBox(const nsAttrValue& aEmptyOrOldValue,
const mozAutoDocUpdate& aProofOfUpdate) {
SVGAnimatedViewBox* viewBox = GetAnimatedViewBox();
NS_ASSERTION(viewBox, "DidChangeViewBox on element with no viewBox attrib");
nsAttrValue newValue;
newValue.SetTo(*viewBox, nullptr);
DidChangeValue(nsGkAtoms::viewBox, aEmptyOrOldValue, newValue,
aProofOfUpdate);
}
void SVGElement::DidAnimateViewBox() {
nsIFrame* frame = GetPrimaryFrame();
if (frame) {
frame->AttributeChanged(kNameSpaceID_None, nsGkAtoms::viewBox,
MutationEvent_Binding::SMIL);
}
}
SVGAnimatedPreserveAspectRatio* SVGElement::GetAnimatedPreserveAspectRatio() {
return nullptr;
}
nsAttrValue SVGElement::WillChangePreserveAspectRatio(
const mozAutoDocUpdate& aProofOfUpdate) {
return WillChangeValue(nsGkAtoms::preserveAspectRatio, aProofOfUpdate);
}
void SVGElement::DidChangePreserveAspectRatio(
const nsAttrValue& aEmptyOrOldValue,
const mozAutoDocUpdate& aProofOfUpdate) {
SVGAnimatedPreserveAspectRatio* preserveAspectRatio =
GetAnimatedPreserveAspectRatio();
NS_ASSERTION(preserveAspectRatio,
"DidChangePreserveAspectRatio on element with no "
"preserveAspectRatio attrib");
nsAttrValue newValue;
newValue.SetTo(*preserveAspectRatio, nullptr);
DidChangeValue(nsGkAtoms::preserveAspectRatio, aEmptyOrOldValue, newValue,
aProofOfUpdate);
}
void SVGElement::DidAnimatePreserveAspectRatio() {
nsIFrame* frame = GetPrimaryFrame();
if (frame) {
frame->AttributeChanged(kNameSpaceID_None, nsGkAtoms::preserveAspectRatio,
MutationEvent_Binding::SMIL);
}
}
nsAttrValue SVGElement::WillChangeTransformList(
const mozAutoDocUpdate& aProofOfUpdate) {
return WillChangeValue(GetTransformListAttrName(), aProofOfUpdate);
}
void SVGElement::DidChangeTransformList(
const nsAttrValue& aEmptyOrOldValue,
const mozAutoDocUpdate& aProofOfUpdate) {
MOZ_ASSERT(GetTransformListAttrName(),
"Changing non-existent transform list?");
// The transform attribute is being set, so we must ensure that the
// SVGAnimatedTransformList is/has been allocated:
nsAttrValue newValue;
newValue.SetTo(GetAnimatedTransformList(DO_ALLOCATE)->GetBaseValue(),
nullptr);
DidChangeValue(GetTransformListAttrName(), aEmptyOrOldValue, newValue,
aProofOfUpdate);
}
void SVGElement::DidAnimateTransformList(int32_t aModType) {
MOZ_ASSERT(GetTransformListAttrName(),
"Animating non-existent transform data?");
nsIFrame* frame = GetPrimaryFrame();
if (frame) {
nsAtom* transformAttr = GetTransformListAttrName();
frame->AttributeChanged(kNameSpaceID_None, transformAttr, aModType);
// When script changes the 'transform' attribute, Element::SetAttrAndNotify
// will call MutationObservers::NotifyAttributeChanged, under which
// SVGTransformableElement::GetAttributeChangeHint will be called and an
// appropriate change event posted to update our frame's overflow rects.
// The SetAttrAndNotify doesn't happen for transform changes caused by
// 'animateTransform' though (and sending out the mutation events that
// MutationObservers::NotifyAttributeChanged dispatches would be
// inappropriate anyway), so we need to post the change event ourself.
nsChangeHint changeHint = GetAttributeChangeHint(transformAttr, aModType);
if (changeHint) {
nsLayoutUtils::PostRestyleEvent(this, RestyleHint{0}, changeHint);
}
}
}
SVGElement::StringAttributesInfo SVGElement::GetStringInfo() {
return StringAttributesInfo(nullptr, nullptr, 0);
}
void SVGElement::StringAttributesInfo::Reset(uint8_t aAttrEnum) {
mStrings[aAttrEnum].Init(aAttrEnum);
}
void SVGElement::GetStringBaseValue(uint8_t aAttrEnum,
nsAString& aResult) const {
SVGElement::StringAttributesInfo info =
const_cast<SVGElement*>(this)->GetStringInfo();
NS_ASSERTION(info.mStringCount > 0,
"GetBaseValue on element with no string attribs");
NS_ASSERTION(aAttrEnum < info.mStringCount, "aAttrEnum out of range");
GetAttr(info.mStringInfo[aAttrEnum].mNamespaceID,
info.mStringInfo[aAttrEnum].mName, aResult);
}
void SVGElement::SetStringBaseValue(uint8_t aAttrEnum,
const nsAString& aValue) {
SVGElement::StringAttributesInfo info = GetStringInfo();
NS_ASSERTION(info.mStringCount > 0,
"SetBaseValue on element with no string attribs");
NS_ASSERTION(aAttrEnum < info.mStringCount, "aAttrEnum out of range");
SetAttr(info.mStringInfo[aAttrEnum].mNamespaceID,
info.mStringInfo[aAttrEnum].mName, aValue, true);
}
void SVGElement::DidAnimateString(uint8_t aAttrEnum) {
nsIFrame* frame = GetPrimaryFrame();
if (frame) {
StringAttributesInfo info = GetStringInfo();
frame->AttributeChanged(info.mStringInfo[aAttrEnum].mNamespaceID,
info.mStringInfo[aAttrEnum].mName,
MutationEvent_Binding::SMIL);
}
}
SVGElement::StringListAttributesInfo SVGElement::GetStringListInfo() {
return StringListAttributesInfo(nullptr, nullptr, 0);
}
nsAttrValue SVGElement::WillChangeStringList(
bool aIsConditionalProcessingAttribute, uint8_t aAttrEnum,
const mozAutoDocUpdate& aProofOfUpdate) {
nsStaticAtom* name;
if (aIsConditionalProcessingAttribute) {
nsCOMPtr<SVGTests> tests(do_QueryInterface(this));
name = tests->GetAttrName(aAttrEnum);
} else {
name = GetStringListInfo().mStringListInfo[aAttrEnum].mName;
}
return WillChangeValue(name, aProofOfUpdate);
}
void SVGElement::DidChangeStringList(bool aIsConditionalProcessingAttribute,
uint8_t aAttrEnum,
const nsAttrValue& aEmptyOrOldValue,
const mozAutoDocUpdate& aProofOfUpdate) {
nsStaticAtom* name;
nsAttrValue newValue;
nsCOMPtr<SVGTests> tests;
if (aIsConditionalProcessingAttribute) {
tests = do_QueryObject(this);
name = tests->GetAttrName(aAttrEnum);
tests->GetAttrValue(aAttrEnum, newValue);
} else {
StringListAttributesInfo info = GetStringListInfo();
NS_ASSERTION(info.mStringListCount > 0,
"DidChangeStringList on element with no string list attribs");
NS_ASSERTION(aAttrEnum < info.mStringListCount, "aAttrEnum out of range");
name = info.mStringListInfo[aAttrEnum].mName;
newValue.SetTo(info.mStringLists[aAttrEnum], nullptr);
}
DidChangeValue(name, aEmptyOrOldValue, newValue, aProofOfUpdate);
if (aIsConditionalProcessingAttribute) {
tests->MaybeInvalidate();
}
}
void SVGElement::StringListAttributesInfo::Reset(uint8_t aAttrEnum) {
mStringLists[aAttrEnum].Clear();
// caller notifies
}
nsresult SVGElement::ReportAttributeParseFailure(Document* aDocument,
nsAtom* aAttribute,
const nsAString& aValue) {
AutoTArray<nsString, 2> strings;
strings.AppendElement(nsDependentAtomString(aAttribute));
strings.AppendElement(aValue);
return SVGContentUtils::ReportToConsole(aDocument, "AttributeParseWarning",
strings);
}
void SVGElement::RecompileScriptEventListeners() {
int32_t i, count = mAttrs.AttrCount();
for (i = 0; i < count; ++i) {
const nsAttrName* name = mAttrs.AttrNameAt(i);
// Eventlistenener-attributes are always in the null namespace
if (!name->IsAtom()) {
continue;
}
nsAtom* attr = name->Atom();
if (!IsEventAttributeName(attr)) {
continue;
}
nsAutoString value;
GetAttr(attr, value);
SetEventHandler(GetEventNameForAttr(attr), value, true);
}
}
UniquePtr<SMILAttr> SVGElement::GetAnimatedAttr(int32_t aNamespaceID,
nsAtom* aName) {
if (aNamespaceID == kNameSpaceID_None) {
// Transforms:
if (GetTransformListAttrName() == aName) {
// The transform attribute is being animated, so we must ensure that the
// SVGAnimatedTransformList is/has been allocated:
return GetAnimatedTransformList(DO_ALLOCATE)->ToSMILAttr(this);
}
// Motion (fake 'attribute' for animateMotion)
if (aName == nsGkAtoms::mozAnimateMotionDummyAttr) {
return MakeUnique<SVGMotionSMILAttr>(this);
}
// Lengths:
LengthAttributesInfo info = GetLengthInfo();
for (uint32_t i = 0; i < info.mLengthCount; i++) {
if (aName == info.mLengthInfo[i].mName) {
return info.mLengths[i].ToSMILAttr(this);
}
}
// Numbers:
{
NumberAttributesInfo info = GetNumberInfo();
for (uint32_t i = 0; i < info.mNumberCount; i++) {
if (aName == info.mNumberInfo[i].mName) {
return info.mNumbers[i].ToSMILAttr(this);
}
}
}
// Number Pairs:
{
NumberPairAttributesInfo info = GetNumberPairInfo();
for (uint32_t i = 0; i < info.mNumberPairCount; i++) {
if (aName == info.mNumberPairInfo[i].mName) {
return info.mNumberPairs[i].ToSMILAttr(this);
}
}
}
// Integers:
{
IntegerAttributesInfo info = GetIntegerInfo();
for (uint32_t i = 0; i < info.mIntegerCount; i++) {
if (aName == info.mIntegerInfo[i].mName) {
return info.mIntegers[i].ToSMILAttr(this);
}
}
}
// Integer Pairs:
{
IntegerPairAttributesInfo info = GetIntegerPairInfo();
for (uint32_t i = 0; i < info.mIntegerPairCount; i++) {
if (aName == info.mIntegerPairInfo[i].mName) {
return info.mIntegerPairs[i].ToSMILAttr(this);
}
}
}
// Enumerations:
{
EnumAttributesInfo info = GetEnumInfo();
for (uint32_t i = 0; i < info.mEnumCount; i++) {
if (aName == info.mEnumInfo[i].mName) {
return info.mEnums[i].ToSMILAttr(this);
}
}
}
// Booleans:
{
BooleanAttributesInfo info = GetBooleanInfo();
for (uint32_t i = 0; i < info.mBooleanCount; i++) {
if (aName == info.mBooleanInfo[i].mName) {
return info.mBooleans[i].ToSMILAttr(this);
}
}
}
// orient:
if (aName == nsGkAtoms::orient) {
SVGAnimatedOrient* orient = GetAnimatedOrient();
return orient ? orient->ToSMILAttr(this) : nullptr;
}
// viewBox:
if (aName == nsGkAtoms::viewBox) {
SVGAnimatedViewBox* viewBox = GetAnimatedViewBox();
return viewBox ? viewBox->ToSMILAttr(this) : nullptr;
}
// preserveAspectRatio:
if (aName == nsGkAtoms::preserveAspectRatio) {
SVGAnimatedPreserveAspectRatio* preserveAspectRatio =
GetAnimatedPreserveAspectRatio();
return preserveAspectRatio ? preserveAspectRatio->ToSMILAttr(this)
: nullptr;
}
// NumberLists:
{
NumberListAttributesInfo info = GetNumberListInfo();
for (uint32_t i = 0; i < info.mNumberListCount; i++) {
if (aName == info.mNumberListInfo[i].mName) {
MOZ_ASSERT(i <= UCHAR_MAX, "Too many attributes");
return info.mNumberLists[i].ToSMILAttr(this, uint8_t(i));
}
}
}
// LengthLists:
{
LengthListAttributesInfo info = GetLengthListInfo();
for (uint32_t i = 0; i < info.mLengthListCount; i++) {
if (aName == info.mLengthListInfo[i].mName) {
MOZ_ASSERT(i <= UCHAR_MAX, "Too many attributes");
return info.mLengthLists[i].ToSMILAttr(
this, uint8_t(i), info.mLengthListInfo[i].mAxis,
info.mLengthListInfo[i].mCouldZeroPadList);
}
}
}
// PointLists:
{
if (GetPointListAttrName() == aName) {
SVGAnimatedPointList* pointList = GetAnimatedPointList();
if (pointList) {
return pointList->ToSMILAttr(this);
}
}
}
// PathSegLists:
{
if (GetPathDataAttrName() == aName) {
SVGAnimatedPathSegList* segList = GetAnimPathSegList();
if (segList) {
return segList->ToSMILAttr(this);
}
}
}
if (aName == nsGkAtoms::_class) {
return mClassAttribute.ToSMILAttr(this);
}
}
// Strings
{
StringAttributesInfo info = GetStringInfo();
for (uint32_t i = 0; i < info.mStringCount; i++) {
if (aNamespaceID == info.mStringInfo[i].mNamespaceID &&
aName == info.mStringInfo[i].mName) {
return info.mStrings[i].ToSMILAttr(this);
}
}
}
return nullptr;
}
void SVGElement::AnimationNeedsResample() {
Document* doc = GetComposedDoc();
if (doc && doc->HasAnimationController()) {
doc->GetAnimationController()->SetResampleNeeded();
}
}
void SVGElement::FlushAnimations() {
Document* doc = GetComposedDoc();
if (doc && doc->HasAnimationController()) {
doc->GetAnimationController()->FlushResampleRequests();
}
}
void SVGElement::AddSizeOfExcludingThis(nsWindowSizes& aSizes,
size_t* aNodeSize) const {
Element::AddSizeOfExcludingThis(aSizes, aNodeSize);
// These are owned by the element and not referenced from the stylesheets.
// They're referenced from the rule tree, but the rule nodes don't measure
// their style source (since they're non-owning), so unconditionally reporting
// them even though it's a refcounted object is ok.
if (mContentDeclarationBlock) {
aSizes.mLayoutSvgMappedDeclarations +=
mContentDeclarationBlock->SizeofIncludingThis(
aSizes.mState.mMallocSizeOf);
}
}
} // namespace dom
} // namespace mozilla
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