Source code
Revision control
Copy as Markdown
Other Tools
/* -*- 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
#include "SVGAnimatedOrient.h"
#include <utility>
#include "DOMSVGAngle.h"
#include "DOMSVGAnimatedAngle.h"
#include "SVGAttrTearoffTable.h"
#include "SVGOrientSMILType.h"
#include "mozilla/ArrayUtils.h"
#include "mozilla/Maybe.h"
#include "mozilla/SMILValue.h"
#include "mozilla/dom/SVGMarkerElement.h"
#include "mozAutoDocUpdate.h"
#include "nsContentUtils.h"
#include "nsTextFormatter.h"
#include "nsPrintfCString.h"
using namespace mozilla::dom;
using namespace mozilla::dom::SVGAngle_Binding;
using namespace mozilla::dom::SVGMarkerElement_Binding;
namespace mozilla {
static SVGAttrTearoffTable<SVGAnimatedOrient, DOMSVGAnimatedEnumeration>
sSVGAnimatedEnumTearoffTable;
static SVGAttrTearoffTable<SVGAnimatedOrient, DOMSVGAnimatedAngle>
sSVGAnimatedAngleTearoffTable;
static SVGAttrTearoffTable<SVGAnimatedOrient, DOMSVGAngle>
sBaseSVGAngleTearoffTable;
static SVGAttrTearoffTable<SVGAnimatedOrient, DOMSVGAngle>
sAnimSVGAngleTearoffTable;
/* Helper functions */
//----------------------------------------------------------------------
// Helper class: AutoChangeOrientNotifier
// Stack-based helper class to pair calls to WillChangeOrient and
// DidChangeOrient with mozAutoDocUpdate.
class MOZ_RAII AutoChangeOrientNotifier {
public:
AutoChangeOrientNotifier(SVGAnimatedOrient* aOrient, SVGElement* aSVGElement,
bool aDoSetAttr = true)
: mOrient(aOrient), mSVGElement(aSVGElement), mDoSetAttr(aDoSetAttr) {
MOZ_ASSERT(mOrient, "Expecting non-null orient");
if (mSVGElement && mDoSetAttr) {
mUpdateBatch.emplace(mSVGElement->GetComposedDoc(), true);
mEmptyOrOldValue = mSVGElement->WillChangeOrient(mUpdateBatch.ref());
}
}
~AutoChangeOrientNotifier() {
if (mSVGElement) {
if (mDoSetAttr) {
mSVGElement->DidChangeOrient(mEmptyOrOldValue, mUpdateBatch.ref());
}
if (mOrient->mIsAnimated) {
mSVGElement->AnimationNeedsResample();
}
}
}
private:
Maybe<mozAutoDocUpdate> mUpdateBatch;
SVGAnimatedOrient* const mOrient;
SVGElement* const mSVGElement;
nsAttrValue mEmptyOrOldValue;
bool mDoSetAttr;
};
const unsigned short SVG_ANGLETYPE_TURN = 5;
static void GetAngleUnitString(nsAString& aUnit, uint16_t aUnitType) {
switch (aUnitType) {
case SVG_ANGLETYPE_UNSPECIFIED:
aUnit.Truncate();
return;
case SVG_ANGLETYPE_DEG:
aUnit.AssignLiteral("deg");
return;
case SVG_ANGLETYPE_RAD:
aUnit.AssignLiteral("rad");
return;
case SVG_ANGLETYPE_GRAD:
aUnit.AssignLiteral("grad");
return;
case SVG_ANGLETYPE_TURN:
aUnit.AssignLiteral("turn");
return;
}
MOZ_ASSERT_UNREACHABLE("Unknown unit type");
}
static uint16_t GetAngleUnitTypeForString(const nsAString& aUnit) {
if (aUnit.IsEmpty()) {
return SVG_ANGLETYPE_UNSPECIFIED;
}
if (aUnit.LowerCaseEqualsLiteral("deg")) {
return SVG_ANGLETYPE_DEG;
}
if (aUnit.LowerCaseEqualsLiteral("rad")) {
return SVG_ANGLETYPE_RAD;
}
if (aUnit.LowerCaseEqualsLiteral("grad")) {
return SVG_ANGLETYPE_GRAD;
}
if (aUnit.LowerCaseEqualsLiteral("turn")) {
return SVG_ANGLETYPE_TURN;
}
return SVG_ANGLETYPE_UNKNOWN;
}
static void GetAngleValueString(nsAString& aValueAsString, float aValue,
uint16_t aUnitType) {
nsTextFormatter::ssprintf(aValueAsString, u"%g", (double)aValue);
nsAutoString unitString;
GetAngleUnitString(unitString, aUnitType);
aValueAsString.Append(unitString);
}
/*static*/
bool SVGAnimatedOrient::IsValidUnitType(uint16_t aUnitType) {
return aUnitType > SVG_ANGLETYPE_UNKNOWN && aUnitType <= SVG_ANGLETYPE_GRAD;
}
/* static */
bool SVGAnimatedOrient::GetValueFromString(const nsAString& aString,
float& aValue, uint16_t* aUnitType) {
bool success;
auto token = SVGContentUtils::GetAndEnsureOneToken(aString, success);
if (!success) {
return false;
}
RangedPtr<const char16_t> iter = SVGContentUtils::GetStartRangedPtr(token);
const RangedPtr<const char16_t> end = SVGContentUtils::GetEndRangedPtr(token);
if (!SVGContentUtils::ParseNumber(iter, end, aValue)) {
return false;
}
const nsAString& units = Substring(iter.get(), end.get());
*aUnitType = GetAngleUnitTypeForString(units);
return *aUnitType != SVG_ANGLETYPE_UNKNOWN;
}
/* static */
float SVGAnimatedOrient::GetDegreesPerUnit(uint8_t aUnit) {
switch (aUnit) {
case SVG_ANGLETYPE_UNSPECIFIED:
case SVG_ANGLETYPE_DEG:
return 1;
case SVG_ANGLETYPE_RAD:
return static_cast<float>(180.0 / M_PI);
case SVG_ANGLETYPE_GRAD:
return 90.0f / 100.0f;
case SVG_ANGLETYPE_TURN:
return 360.0f;
default:
MOZ_ASSERT_UNREACHABLE("Unknown unit type");
return 0;
}
}
void SVGAnimatedOrient::SetBaseValueInSpecifiedUnits(float aValue,
SVGElement* aSVGElement) {
if (mBaseVal == aValue && mBaseType == SVG_MARKER_ORIENT_ANGLE) {
return;
}
AutoChangeOrientNotifier notifier(this, aSVGElement);
mBaseVal = aValue;
mBaseType = SVG_MARKER_ORIENT_ANGLE;
if (!mIsAnimated) {
mAnimVal = mBaseVal;
mAnimType = mBaseType;
}
}
nsresult SVGAnimatedOrient::ConvertToSpecifiedUnits(uint16_t unitType,
SVGElement* aSVGElement) {
if (!IsValidUnitType(unitType)) {
return NS_ERROR_DOM_NOT_SUPPORTED_ERR;
}
if (mBaseValUnit == uint8_t(unitType) &&
mBaseType == SVG_MARKER_ORIENT_ANGLE) {
return NS_OK;
}
float valueInUserUnits = mBaseVal * GetDegreesPerUnit(mBaseValUnit);
SetBaseValue(valueInUserUnits, unitType, aSVGElement, true);
return NS_OK;
}
nsresult SVGAnimatedOrient::NewValueSpecifiedUnits(uint16_t aUnitType,
float aValueInSpecifiedUnits,
SVGElement* aSVGElement) {
NS_ENSURE_FINITE(aValueInSpecifiedUnits, NS_ERROR_ILLEGAL_VALUE);
if (!IsValidUnitType(aUnitType)) {
return NS_ERROR_DOM_NOT_SUPPORTED_ERR;
}
if (mBaseVal == aValueInSpecifiedUnits &&
mBaseValUnit == uint8_t(aUnitType) &&
mBaseType == SVG_MARKER_ORIENT_ANGLE)
return NS_OK;
AutoChangeOrientNotifier notifier(this, aSVGElement);
mBaseVal = aValueInSpecifiedUnits;
mBaseValUnit = uint8_t(aUnitType);
mBaseType = SVG_MARKER_ORIENT_ANGLE;
if (!mIsAnimated) {
mAnimVal = mBaseVal;
mAnimValUnit = mBaseValUnit;
mAnimType = mBaseType;
}
return NS_OK;
}
already_AddRefed<DOMSVGAngle> SVGAnimatedOrient::ToDOMBaseVal(
SVGElement* aSVGElement) {
RefPtr<DOMSVGAngle> domBaseVal = sBaseSVGAngleTearoffTable.GetTearoff(this);
if (!domBaseVal) {
domBaseVal =
new DOMSVGAngle(this, aSVGElement, DOMSVGAngle::AngleType::BaseValue);
sBaseSVGAngleTearoffTable.AddTearoff(this, domBaseVal);
}
return domBaseVal.forget();
}
already_AddRefed<DOMSVGAngle> SVGAnimatedOrient::ToDOMAnimVal(
SVGElement* aSVGElement) {
RefPtr<DOMSVGAngle> domAnimVal = sAnimSVGAngleTearoffTable.GetTearoff(this);
if (!domAnimVal) {
domAnimVal =
new DOMSVGAngle(this, aSVGElement, DOMSVGAngle::AngleType::AnimValue);
sAnimSVGAngleTearoffTable.AddTearoff(this, domAnimVal);
}
return domAnimVal.forget();
}
DOMSVGAngle::~DOMSVGAngle() {
switch (mType) {
case AngleType::BaseValue:
sBaseSVGAngleTearoffTable.RemoveTearoff(mVal);
break;
case AngleType::AnimValue:
sAnimSVGAngleTearoffTable.RemoveTearoff(mVal);
break;
default:
delete mVal;
}
}
/* Implementation */
nsresult SVGAnimatedOrient::SetBaseValueString(const nsAString& aValueAsString,
SVGElement* aSVGElement,
bool aDoSetAttr) {
uint8_t type;
float value;
uint16_t unitType;
bool valueChanged = false;
if (aValueAsString.EqualsLiteral("auto")) {
type = SVG_MARKER_ORIENT_AUTO;
if (type == mBaseType) {
return NS_OK;
}
} else if (aValueAsString.EqualsLiteral("auto-start-reverse")) {
type = SVG_MARKER_ORIENT_AUTO_START_REVERSE;
if (type == mBaseType) {
return NS_OK;
}
} else {
if (!GetValueFromString(aValueAsString, value, &unitType)) {
return NS_ERROR_DOM_SYNTAX_ERR;
}
if (mBaseVal == value && mBaseValUnit == uint8_t(unitType) &&
mBaseType == SVG_MARKER_ORIENT_ANGLE) {
return NS_OK;
}
valueChanged = true;
}
AutoChangeOrientNotifier notifier(this, aSVGElement, aDoSetAttr);
if (valueChanged) {
mBaseVal = value;
mBaseValUnit = uint8_t(unitType);
mBaseType = SVG_MARKER_ORIENT_ANGLE;
} else {
mBaseVal = .0f;
mBaseValUnit = SVG_ANGLETYPE_UNSPECIFIED;
mBaseType = type;
}
if (!mIsAnimated) {
mAnimVal = mBaseVal;
mAnimValUnit = mBaseValUnit;
mAnimType = mBaseType;
}
return NS_OK;
}
void SVGAnimatedOrient::GetBaseValueString(nsAString& aValueAsString) const {
switch (mBaseType) {
case SVG_MARKER_ORIENT_AUTO:
aValueAsString.AssignLiteral("auto");
return;
case SVG_MARKER_ORIENT_AUTO_START_REVERSE:
aValueAsString.AssignLiteral("auto-start-reverse");
return;
}
GetAngleValueString(aValueAsString, mBaseVal, mBaseValUnit);
}
void SVGAnimatedOrient::GetBaseAngleValueString(
nsAString& aValueAsString) const {
GetAngleValueString(aValueAsString, mBaseVal, mBaseValUnit);
}
void SVGAnimatedOrient::GetAnimAngleValueString(
nsAString& aValueAsString) const {
GetAngleValueString(aValueAsString, mAnimVal, mAnimValUnit);
}
void SVGAnimatedOrient::SetBaseValue(float aValue, uint8_t aUnit,
SVGElement* aSVGElement, bool aDoSetAttr) {
float valueInSpecifiedUnits = aValue / GetDegreesPerUnit(aUnit);
if (aUnit == mBaseValUnit && mBaseVal == valueInSpecifiedUnits &&
mBaseType == SVG_MARKER_ORIENT_ANGLE) {
return;
}
AutoChangeOrientNotifier notifier(this, aSVGElement, aDoSetAttr);
mBaseValUnit = aUnit;
mBaseVal = valueInSpecifiedUnits;
mBaseType = SVG_MARKER_ORIENT_ANGLE;
if (!mIsAnimated) {
mAnimValUnit = mBaseValUnit;
mAnimVal = mBaseVal;
mAnimType = mBaseType;
}
}
void SVGAnimatedOrient::SetBaseType(SVGEnumValue aValue,
SVGElement* aSVGElement, ErrorResult& aRv) {
if (mBaseType == aValue) {
return;
}
if (aValue >= SVG_MARKER_ORIENT_AUTO &&
aValue <= SVG_MARKER_ORIENT_AUTO_START_REVERSE) {
AutoChangeOrientNotifier notifier(this, aSVGElement);
mBaseVal = .0f;
mBaseValUnit = SVG_ANGLETYPE_UNSPECIFIED;
mBaseType = aValue;
if (!mIsAnimated) {
mAnimVal = mBaseVal;
mAnimValUnit = mBaseValUnit;
mAnimType = mBaseType;
}
return;
}
nsPrintfCString err("Invalid base value %u for marker orient", aValue);
aRv.ThrowTypeError(err);
}
void SVGAnimatedOrient::SetAnimValue(float aValue, uint8_t aUnit,
SVGElement* aSVGElement) {
if (mIsAnimated && mAnimVal == aValue && mAnimValUnit == aUnit &&
mAnimType == SVG_MARKER_ORIENT_ANGLE) {
return;
}
mAnimVal = aValue;
mAnimValUnit = aUnit;
mAnimType = SVG_MARKER_ORIENT_ANGLE;
mIsAnimated = true;
aSVGElement->DidAnimateOrient();
}
void SVGAnimatedOrient::SetAnimType(SVGEnumValue aValue,
SVGElement* aSVGElement) {
if (mIsAnimated && mAnimType == aValue) {
return;
}
mAnimVal = .0f;
mAnimValUnit = SVG_ANGLETYPE_UNSPECIFIED;
mAnimType = aValue;
mIsAnimated = true;
aSVGElement->DidAnimateOrient();
}
already_AddRefed<DOMSVGAnimatedAngle> SVGAnimatedOrient::ToDOMAnimatedAngle(
SVGElement* aSVGElement) {
RefPtr<DOMSVGAnimatedAngle> domAnimatedAngle =
sSVGAnimatedAngleTearoffTable.GetTearoff(this);
if (!domAnimatedAngle) {
domAnimatedAngle = new DOMSVGAnimatedAngle(this, aSVGElement);
sSVGAnimatedAngleTearoffTable.AddTearoff(this, domAnimatedAngle);
}
return domAnimatedAngle.forget();
}
already_AddRefed<DOMSVGAnimatedEnumeration>
SVGAnimatedOrient::ToDOMAnimatedEnum(SVGElement* aSVGElement) {
RefPtr<DOMSVGAnimatedEnumeration> domAnimatedEnum =
sSVGAnimatedEnumTearoffTable.GetTearoff(this);
if (!domAnimatedEnum) {
domAnimatedEnum = new DOMAnimatedEnum(this, aSVGElement);
sSVGAnimatedEnumTearoffTable.AddTearoff(this, domAnimatedEnum);
}
return domAnimatedEnum.forget();
}
DOMSVGAnimatedAngle::~DOMSVGAnimatedAngle() {
sSVGAnimatedAngleTearoffTable.RemoveTearoff(mVal);
}
SVGAnimatedOrient::DOMAnimatedEnum::~DOMAnimatedEnum() {
sSVGAnimatedEnumTearoffTable.RemoveTearoff(mVal);
}
UniquePtr<SMILAttr> SVGAnimatedOrient::ToSMILAttr(SVGElement* aSVGElement) {
if (aSVGElement->IsSVGElement(nsGkAtoms::marker)) {
return MakeUnique<SMILOrient>(this, aSVGElement);
}
// SMILOrient would not be useful for general angle attributes (also,
// "orient" is the only animatable <angle>-valued attribute in SVG 1.1).
MOZ_ASSERT_UNREACHABLE("Trying to animate unknown angle attribute.");
return nullptr;
}
nsresult SVGAnimatedOrient::SMILOrient::ValueFromString(
const nsAString& aStr, const SVGAnimationElement* /*aSrcElement*/,
SMILValue& aValue, bool& aPreventCachingOfSandwich) const {
SMILValue val(&SVGOrientSMILType::sSingleton);
if (aStr.EqualsLiteral("auto")) {
val.mU.mOrient.mOrientType = SVG_MARKER_ORIENT_AUTO;
val.mU.mOrient.mAngle = .0f;
val.mU.mOrient.mUnit = SVG_ANGLETYPE_UNSPECIFIED;
} else if (aStr.EqualsLiteral("auto-start-reverse")) {
val.mU.mOrient.mOrientType = SVG_MARKER_ORIENT_AUTO_START_REVERSE;
val.mU.mOrient.mAngle = .0f;
val.mU.mOrient.mUnit = SVG_ANGLETYPE_UNSPECIFIED;
} else {
float value;
uint16_t unitType;
if (!GetValueFromString(aStr, value, &unitType)) {
return NS_ERROR_DOM_SYNTAX_ERR;
}
val.mU.mOrient.mAngle = value;
val.mU.mOrient.mUnit = unitType;
val.mU.mOrient.mOrientType = SVG_MARKER_ORIENT_ANGLE;
}
aValue = std::move(val);
return NS_OK;
}
SMILValue SVGAnimatedOrient::SMILOrient::GetBaseValue() const {
SMILValue val(&SVGOrientSMILType::sSingleton);
val.mU.mOrient.mAngle = mOrient->GetBaseValInSpecifiedUnits();
val.mU.mOrient.mUnit = mOrient->GetBaseValueUnit();
val.mU.mOrient.mOrientType = mOrient->mBaseType;
return val;
}
void SVGAnimatedOrient::SMILOrient::ClearAnimValue() {
if (mOrient->mIsAnimated) {
mOrient->mIsAnimated = false;
mOrient->mAnimVal = mOrient->mBaseVal;
mOrient->mAnimValUnit = mOrient->mBaseValUnit;
mOrient->mAnimType = mOrient->mBaseType;
mSVGElement->DidAnimateOrient();
}
}
nsresult SVGAnimatedOrient::SMILOrient::SetAnimValue(const SMILValue& aValue) {
NS_ASSERTION(aValue.mType == &SVGOrientSMILType::sSingleton,
"Unexpected type to assign animated value");
if (aValue.mType == &SVGOrientSMILType::sSingleton) {
if (aValue.mU.mOrient.mOrientType == SVG_MARKER_ORIENT_AUTO ||
aValue.mU.mOrient.mOrientType == SVG_MARKER_ORIENT_AUTO_START_REVERSE) {
mOrient->SetAnimType(aValue.mU.mOrient.mOrientType, mSVGElement);
} else {
mOrient->SetAnimValue(aValue.mU.mOrient.mAngle, aValue.mU.mOrient.mUnit,
mSVGElement);
}
}
return NS_OK;
}
} // namespace mozilla