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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 "SVGAnimatedNumberPair.h"
#include "SVGAttrTearoffTable.h"
#include "SVGNumberPairSMILType.h"
#include "mozilla/SMILValue.h"
#include "mozilla/SVGContentUtils.h"
#include "nsCharSeparatedTokenizer.h"
#include "nsContentUtils.h"
using namespace mozilla::dom;
namespace mozilla {
//----------------------------------------------------------------------
// Helper class: AutoChangeNumberPairNotifier
// Stack-based helper class to pair calls to WillChangeNumberPair and
// DidChangeNumberPair.
class MOZ_RAII AutoChangeNumberPairNotifier {
public:
AutoChangeNumberPairNotifier(SVGAnimatedNumberPair* aNumberPair,
SVGElement* aSVGElement, bool aDoSetAttr = true)
: mNumberPair(aNumberPair),
mSVGElement(aSVGElement),
mDoSetAttr(aDoSetAttr) {
MOZ_ASSERT(mNumberPair, "Expecting non-null numberPair");
MOZ_ASSERT(mSVGElement, "Expecting non-null element");
if (mDoSetAttr) {
mSVGElement->WillChangeNumberPair(mNumberPair->mAttrEnum);
}
}
~AutoChangeNumberPairNotifier() {
if (mDoSetAttr) {
mSVGElement->DidChangeNumberPair(mNumberPair->mAttrEnum);
}
if (mNumberPair->mIsAnimated) {
mSVGElement->AnimationNeedsResample();
}
}
private:
SVGAnimatedNumberPair* const mNumberPair;
SVGElement* const mSVGElement;
bool mDoSetAttr;
};
// An array of two tearoff tables, indexed using the enum
// SVGAnimatedNumberPairWhichOne. Each of the two tables is a map from
// SVGAnimatedNumberPair to a DOM wrapper for the first or second entry in the
// SVGAnimatedNumberPair. (The first table contains wrappers for pairs' first
// entries, and the second table contains wrappers for pairs' second entries.)
constinit static EnumeratedArray<
SVGAnimatedNumberPairWhichOne,
SVGAttrTearoffTable<SVGAnimatedNumberPair,
SVGAnimatedNumberPair::DOMAnimatedNumber>>
sSVGAnimatedNumberTearoffTables;
static nsresult ParseNumberOptionalNumber(const nsAString& aValue,
float aValues[2]) {
nsCharSeparatedTokenizerTemplate<nsContentUtils::IsHTMLWhitespace,
nsTokenizerFlags::SeparatorOptional>
tokenizer(aValue, ',');
uint32_t i;
for (i = 0; i < 2 && tokenizer.hasMoreTokens(); ++i) {
if (!SVGContentUtils::ParseNumber(tokenizer.nextToken(), aValues[i])) {
return NS_ERROR_DOM_SYNTAX_ERR;
}
}
if (i == 1) {
aValues[1] = aValues[0];
}
if (i == 0 || // Too few values.
tokenizer.hasMoreTokens() || // Too many values.
tokenizer.separatorAfterCurrentToken()) { // Trailing comma.
return NS_ERROR_DOM_SYNTAX_ERR;
}
return NS_OK;
}
nsresult SVGAnimatedNumberPair::SetBaseValueString(
const nsAString& aValueAsString, SVGElement* aSVGElement) {
float val[2];
nsresult rv = ParseNumberOptionalNumber(aValueAsString, val);
if (NS_FAILED(rv)) {
return rv;
}
// We don't need to call Will/DidChange* here - we're only called by
// SVGElement::ParseAttribute under Element::SetAttr,
// which takes care of notifying.
AutoChangeNumberPairNotifier notifier(this, aSVGElement, false);
mBaseVal = PairValues(val[0], val[1]);
mIsBaseSet = true;
if (!mIsAnimated) {
mAnimVal = mBaseVal;
}
return NS_OK;
}
void SVGAnimatedNumberPair::GetBaseValueString(
nsAString& aValueAsString) const {
aValueAsString.Truncate();
aValueAsString.AppendFloat(mBaseVal[WhichOneOfPair::First]);
if (mBaseVal[WhichOneOfPair::First] != mBaseVal[WhichOneOfPair::Second]) {
aValueAsString.AppendLiteral(", ");
aValueAsString.AppendFloat(mBaseVal[WhichOneOfPair::Second]);
}
}
void SVGAnimatedNumberPair::SetBaseValue(float aValue,
WhichOneOfPair aWhichOneOfPair,
SVGElement* aSVGElement) {
if (mIsBaseSet && mBaseVal[aWhichOneOfPair] == aValue) {
return;
}
AutoChangeNumberPairNotifier notifier(this, aSVGElement);
mBaseVal[aWhichOneOfPair] = aValue;
mIsBaseSet = true;
if (!mIsAnimated) {
mAnimVal[aWhichOneOfPair] = aValue;
}
}
void SVGAnimatedNumberPair::SetBaseValues(float aValue1, float aValue2,
SVGElement* aSVGElement) {
PairValues value(aValue1, aValue2);
if (mIsBaseSet && std::ranges::equal(mBaseVal, value)) {
return;
}
AutoChangeNumberPairNotifier notifier(this, aSVGElement);
mBaseVal = value;
mIsBaseSet = true;
if (!mIsAnimated) {
mAnimVal = value;
}
}
void SVGAnimatedNumberPair::SetAnimValue(const float aValue[2],
SVGElement* aSVGElement) {
PairValues value(aValue[0], aValue[1]);
if (mIsAnimated && std::ranges::equal(mAnimVal, value)) {
return;
}
mAnimVal = value;
mIsAnimated = true;
aSVGElement->DidAnimateNumberPair(mAttrEnum);
}
already_AddRefed<DOMSVGAnimatedNumber>
SVGAnimatedNumberPair::ToDOMAnimatedNumber(WhichOneOfPair aWhichOneOfPair,
SVGElement* aSVGElement) {
RefPtr<DOMAnimatedNumber> domAnimatedNumber =
sSVGAnimatedNumberTearoffTables[aWhichOneOfPair].GetTearoff(this);
if (!domAnimatedNumber) {
domAnimatedNumber =
new DOMAnimatedNumber(this, aWhichOneOfPair, aSVGElement);
sSVGAnimatedNumberTearoffTables[aWhichOneOfPair].AddTearoff(
this, domAnimatedNumber);
}
return domAnimatedNumber.forget();
}
SVGAnimatedNumberPair::DOMAnimatedNumber::~DOMAnimatedNumber() {
sSVGAnimatedNumberTearoffTables[mWhichOneOfPair].RemoveTearoff(mVal);
}
std::unique_ptr<SMILAttr> SVGAnimatedNumberPair::ToSMILAttr(
SVGElement* aSVGElement) {
return std::make_unique<SMILNumberPair>(this, aSVGElement);
}
nsresult SVGAnimatedNumberPair::SMILNumberPair::ValueFromString(
const nsAString& aStr, const dom::SVGAnimationElement* /*aSrcElement*/,
SMILValue& aValue, bool& aPreventCachingOfSandwich) const {
float values[2];
nsresult rv = ParseNumberOptionalNumber(aStr, values);
if (NS_FAILED(rv)) {
return rv;
}
SMILValue val(&SVGNumberPairSMILType::sSingleton);
val.mU.mNumberPair[0] = values[0];
val.mU.mNumberPair[1] = values[1];
aValue = val;
return NS_OK;
}
SMILValue SVGAnimatedNumberPair::SMILNumberPair::GetBaseValue() const {
SMILValue val(&SVGNumberPairSMILType::sSingleton);
val.mU.mNumberPair[0] = mVal->mBaseVal[WhichOneOfPair::First];
val.mU.mNumberPair[1] = mVal->mBaseVal[WhichOneOfPair::Second];
return val;
}
void SVGAnimatedNumberPair::SMILNumberPair::ClearAnimValue() {
if (mVal->mIsAnimated) {
mVal->mIsAnimated = false;
mVal->mAnimVal = mVal->mBaseVal;
mSVGElement->DidAnimateNumberPair(mVal->mAttrEnum);
}
}
nsresult SVGAnimatedNumberPair::SMILNumberPair::SetAnimValue(
const SMILValue& aValue) {
NS_ASSERTION(aValue.mType == &SVGNumberPairSMILType::sSingleton,
"Unexpected type to assign animated value");
if (aValue.mType == &SVGNumberPairSMILType::sSingleton) {
mVal->SetAnimValue(aValue.mU.mNumberPair, mSVGElement);
}
return NS_OK;
}
} // namespace mozilla