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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsSVGNumber2.h"
#include "mozilla/Attributes.h"
#include "nsContentUtils.h" // NS_ENSURE_FINITE
#include "nsSMILFloatType.h"
#include "nsSMILValue.h"
#include "nsSVGAttrTearoffTable.h"
#include "SVGContentUtils.h"
using namespace mozilla;
using namespace mozilla::dom;
/* Implementation */
static nsSVGAttrTearoffTable<nsSVGNumber2, nsSVGNumber2::DOMAnimatedNumber>
sSVGAnimatedNumberTearoffTable;
static bool
GetValueFromString(const nsAString& aString,
bool aPercentagesAllowed,
float& aValue)
{
RangedPtr<const char16_t> iter =
SVGContentUtils::GetStartRangedPtr(aString);
const RangedPtr<const char16_t> end =
SVGContentUtils::GetEndRangedPtr(aString);
if (!SVGContentUtils::ParseNumber(iter, end, aValue)) {
return false;
}
if (aPercentagesAllowed) {
const nsAString& units = Substring(iter.get(), end.get());
if (units.EqualsLiteral("%")) {
aValue /= 100;
return true;
}
}
return iter == end;
}
nsresult
nsSVGNumber2::SetBaseValueString(const nsAString &aValueAsString,
nsSVGElement *aSVGElement)
{
float val;
if (!GetValueFromString(aValueAsString,
aSVGElement->NumberAttrAllowsPercentage(mAttrEnum),
val)) {
return NS_ERROR_DOM_SYNTAX_ERR;
}
mBaseVal = val;
mIsBaseSet = true;
if (!mIsAnimated) {
mAnimVal = mBaseVal;
}
else {
aSVGElement->AnimationNeedsResample();
}
// We don't need to call DidChange* here - we're only called by
// nsSVGElement::ParseAttribute under Element::SetAttr,
// which takes care of notifying.
return NS_OK;
}
void
nsSVGNumber2::GetBaseValueString(nsAString & aValueAsString)
{
aValueAsString.Truncate();
aValueAsString.AppendFloat(mBaseVal);
}
void
nsSVGNumber2::SetBaseValue(float aValue, nsSVGElement *aSVGElement)
{
if (mIsBaseSet && aValue == mBaseVal) {
return;
}
mBaseVal = aValue;
mIsBaseSet = true;
if (!mIsAnimated) {
mAnimVal = mBaseVal;
}
else {
aSVGElement->AnimationNeedsResample();
}
aSVGElement->DidChangeNumber(mAttrEnum);
}
void
nsSVGNumber2::SetAnimValue(float aValue, nsSVGElement *aSVGElement)
{
if (mIsAnimated && aValue == mAnimVal) {
return;
}
mAnimVal = aValue;
mIsAnimated = true;
aSVGElement->DidAnimateNumber(mAttrEnum);
}
already_AddRefed<SVGAnimatedNumber>
nsSVGNumber2::ToDOMAnimatedNumber(nsSVGElement* aSVGElement)
{
RefPtr<DOMAnimatedNumber> domAnimatedNumber =
sSVGAnimatedNumberTearoffTable.GetTearoff(this);
if (!domAnimatedNumber) {
domAnimatedNumber = new DOMAnimatedNumber(this, aSVGElement);
sSVGAnimatedNumberTearoffTable.AddTearoff(this, domAnimatedNumber);
}
return domAnimatedNumber.forget();
}
nsSVGNumber2::DOMAnimatedNumber::~DOMAnimatedNumber()
{
sSVGAnimatedNumberTearoffTable.RemoveTearoff(mVal);
}
nsISMILAttr*
nsSVGNumber2::ToSMILAttr(nsSVGElement *aSVGElement)
{
return new SMILNumber(this, aSVGElement);
}
nsresult
nsSVGNumber2::SMILNumber::ValueFromString(const nsAString& aStr,
const mozilla::dom::SVGAnimationElement* /*aSrcElement*/,
nsSMILValue& aValue,
bool& aPreventCachingOfSandwich) const
{
float value;
if (!GetValueFromString(aStr,
mSVGElement->NumberAttrAllowsPercentage(mVal->mAttrEnum),
value)) {
return NS_ERROR_DOM_SYNTAX_ERR;
}
nsSMILValue val(nsSMILFloatType::Singleton());
val.mU.mDouble = value;
aValue = val;
aPreventCachingOfSandwich = false;
return NS_OK;
}
nsSMILValue
nsSVGNumber2::SMILNumber::GetBaseValue() const
{
nsSMILValue val(nsSMILFloatType::Singleton());
val.mU.mDouble = mVal->mBaseVal;
return val;
}
void
nsSVGNumber2::SMILNumber::ClearAnimValue()
{
if (mVal->mIsAnimated) {
mVal->mIsAnimated = false;
mVal->mAnimVal = mVal->mBaseVal;
mSVGElement->DidAnimateNumber(mVal->mAttrEnum);
}
}
nsresult
nsSVGNumber2::SMILNumber::SetAnimValue(const nsSMILValue& aValue)
{
NS_ASSERTION(aValue.mType == nsSMILFloatType::Singleton(),
"Unexpected type to assign animated value");
if (aValue.mType == nsSMILFloatType::Singleton()) {
mVal->SetAnimValue(float(aValue.mU.mDouble), mSVGElement);
}
return NS_OK;
}
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