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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 "SVGAnimatedInteger.h"
#include "nsError.h"
#include "SMILIntegerType.h"
#include "SVGAttrTearoffTable.h"
#include "mozilla/SMILValue.h"
#include "mozilla/SVGContentUtils.h"
using namespace mozilla::dom;
namespace mozilla {
/* Implementation */
//----------------------------------------------------------------------
// Helper class: AutoChangeIntegerNotifier
// Stack-based helper class ensure DidChangeInteger is called.
class MOZ_RAII AutoChangeIntegerNotifier {
public:
AutoChangeIntegerNotifier(SVGAnimatedInteger* aInteger,
SVGElement* aSVGElement, bool aDoSetAttr = true)
: mInteger(aInteger), mSVGElement(aSVGElement), mDoSetAttr(aDoSetAttr) {
MOZ_ASSERT(mInteger, "Expecting non-null integer");
MOZ_ASSERT(mSVGElement, "Expecting non-null element");
}
~AutoChangeIntegerNotifier() {
if (mDoSetAttr) {
mSVGElement->DidChangeInteger(mInteger->mAttrEnum);
}
if (mInteger->mIsAnimated) {
mSVGElement->AnimationNeedsResample();
}
}
private:
SVGAnimatedInteger* const mInteger;
SVGElement* const mSVGElement;
bool mDoSetAttr;
};
static SVGAttrTearoffTable<SVGAnimatedInteger,
SVGAnimatedInteger::DOMAnimatedInteger>
sSVGAnimatedIntegerTearoffTable;
nsresult SVGAnimatedInteger::SetBaseValueString(const nsAString& aValueAsString,
SVGElement* aSVGElement) {
bool success;
auto token = SVGContentUtils::GetAndEnsureOneToken(aValueAsString, success);
if (!success) {
return NS_ERROR_DOM_SYNTAX_ERR;
}
int32_t value;
if (!SVGContentUtils::ParseInteger(token, value)) {
return NS_ERROR_DOM_SYNTAX_ERR;
}
AutoChangeIntegerNotifier notifier(this, aSVGElement, false);
mIsBaseSet = true;
mBaseVal = value;
if (!mIsAnimated) {
mAnimVal = mBaseVal;
}
return NS_OK;
}
void SVGAnimatedInteger::GetBaseValueString(nsAString& aValueAsString) {
aValueAsString.Truncate();
aValueAsString.AppendInt(mBaseVal);
}
void SVGAnimatedInteger::SetBaseValue(int aValue, SVGElement* aSVGElement) {
// We can't just rely on SetParsedAttrValue (as called by DidChangeInteger)
// detecting redundant changes since it will compare false if the existing
// attribute value has an associated serialized version (a string value) even
// if the integers match due to the way integers are stored in nsAttrValue.
if (aValue == mBaseVal && mIsBaseSet) {
return;
}
AutoChangeIntegerNotifier notifier(this, aSVGElement);
mBaseVal = aValue;
mIsBaseSet = true;
if (!mIsAnimated) {
mAnimVal = mBaseVal;
}
}
void SVGAnimatedInteger::SetAnimValue(int aValue, SVGElement* aSVGElement) {
if (mIsAnimated && aValue == mAnimVal) {
return;
}
mAnimVal = aValue;
mIsAnimated = true;
aSVGElement->DidAnimateInteger(mAttrEnum);
}
already_AddRefed<DOMSVGAnimatedInteger>
SVGAnimatedInteger::ToDOMAnimatedInteger(SVGElement* aSVGElement) {
RefPtr<DOMAnimatedInteger> domAnimatedInteger =
sSVGAnimatedIntegerTearoffTable.GetTearoff(this);
if (!domAnimatedInteger) {
domAnimatedInteger = new DOMAnimatedInteger(this, aSVGElement);
sSVGAnimatedIntegerTearoffTable.AddTearoff(this, domAnimatedInteger);
}
return domAnimatedInteger.forget();
}
SVGAnimatedInteger::DOMAnimatedInteger::~DOMAnimatedInteger() {
sSVGAnimatedIntegerTearoffTable.RemoveTearoff(mVal);
}
UniquePtr<SMILAttr> SVGAnimatedInteger::ToSMILAttr(SVGElement* aSVGElement) {
return MakeUnique<SMILInteger>(this, aSVGElement);
}
nsresult SVGAnimatedInteger::SMILInteger::ValueFromString(
const nsAString& aStr, const dom::SVGAnimationElement* /*aSrcElement*/,
SMILValue& aValue, bool& aPreventCachingOfSandwich) const {
int32_t val;
if (!SVGContentUtils::ParseInteger(aStr, val)) {
return NS_ERROR_DOM_SYNTAX_ERR;
}
SMILValue smilVal(SMILIntegerType::Singleton());
smilVal.mU.mInt = val;
aValue = smilVal;
aPreventCachingOfSandwich = false;
return NS_OK;
}
SMILValue SVGAnimatedInteger::SMILInteger::GetBaseValue() const {
SMILValue val(SMILIntegerType::Singleton());
val.mU.mInt = mVal->mBaseVal;
return val;
}
void SVGAnimatedInteger::SMILInteger::ClearAnimValue() {
if (mVal->mIsAnimated) {
mVal->mIsAnimated = false;
mVal->mAnimVal = mVal->mBaseVal;
mSVGElement->DidAnimateInteger(mVal->mAttrEnum);
}
}
nsresult SVGAnimatedInteger::SMILInteger::SetAnimValue(
const SMILValue& aValue) {
NS_ASSERTION(aValue.mType == SMILIntegerType::Singleton(),
"Unexpected type to assign animated value");
if (aValue.mType == SMILIntegerType::Singleton()) {
mVal->SetAnimValue(int(aValue.mU.mInt), mSVGElement);
}
return NS_OK;
}
} // namespace mozilla
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