gecko-dev/dom/svg/SVGInteger.cpp

135 строки
3.8 KiB
C++

/* -*- 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 "SVGInteger.h"
#include "nsError.h"
#include "nsSVGAttrTearoffTable.h"
#include "nsSMILValue.h"
#include "SMILIntegerType.h"
#include "SVGContentUtils.h"
using namespace mozilla::dom;
namespace mozilla {
/* Implementation */
static nsSVGAttrTearoffTable<SVGInteger, SVGInteger::DOMAnimatedInteger>
sSVGAnimatedIntegerTearoffTable;
nsresult SVGInteger::SetBaseValueString(const nsAString &aValueAsString,
SVGElement *aSVGElement) {
int32_t value;
if (!SVGContentUtils::ParseInteger(aValueAsString, value)) {
return NS_ERROR_DOM_SYNTAX_ERR;
}
mIsBaseSet = true;
mBaseVal = value;
if (!mIsAnimated) {
mAnimVal = mBaseVal;
} else {
aSVGElement->AnimationNeedsResample();
}
return NS_OK;
}
void SVGInteger::GetBaseValueString(nsAString &aValueAsString) {
aValueAsString.Truncate();
aValueAsString.AppendInt(mBaseVal);
}
void SVGInteger::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;
}
mBaseVal = aValue;
mIsBaseSet = true;
if (!mIsAnimated) {
mAnimVal = mBaseVal;
} else {
aSVGElement->AnimationNeedsResample();
}
aSVGElement->DidChangeInteger(mAttrEnum);
}
void SVGInteger::SetAnimValue(int aValue, SVGElement *aSVGElement) {
if (mIsAnimated && aValue == mAnimVal) {
return;
}
mAnimVal = aValue;
mIsAnimated = true;
aSVGElement->DidAnimateInteger(mAttrEnum);
}
already_AddRefed<SVGAnimatedInteger> SVGInteger::ToDOMAnimatedInteger(
SVGElement *aSVGElement) {
RefPtr<DOMAnimatedInteger> domAnimatedInteger =
sSVGAnimatedIntegerTearoffTable.GetTearoff(this);
if (!domAnimatedInteger) {
domAnimatedInteger = new DOMAnimatedInteger(this, aSVGElement);
sSVGAnimatedIntegerTearoffTable.AddTearoff(this, domAnimatedInteger);
}
return domAnimatedInteger.forget();
}
SVGInteger::DOMAnimatedInteger::~DOMAnimatedInteger() {
sSVGAnimatedIntegerTearoffTable.RemoveTearoff(mVal);
}
UniquePtr<nsISMILAttr> SVGInteger::ToSMILAttr(SVGElement *aSVGElement) {
return MakeUnique<SMILInteger>(this, aSVGElement);
}
nsresult SVGInteger::SMILInteger::ValueFromString(
const nsAString &aStr, const dom::SVGAnimationElement * /*aSrcElement*/,
nsSMILValue &aValue, bool &aPreventCachingOfSandwich) const {
int32_t val;
if (!SVGContentUtils::ParseInteger(aStr, val)) {
return NS_ERROR_DOM_SYNTAX_ERR;
}
nsSMILValue smilVal(SMILIntegerType::Singleton());
smilVal.mU.mInt = val;
aValue = smilVal;
aPreventCachingOfSandwich = false;
return NS_OK;
}
nsSMILValue SVGInteger::SMILInteger::GetBaseValue() const {
nsSMILValue val(SMILIntegerType::Singleton());
val.mU.mInt = mVal->mBaseVal;
return val;
}
void SVGInteger::SMILInteger::ClearAnimValue() {
if (mVal->mIsAnimated) {
mVal->mIsAnimated = false;
mVal->mAnimVal = mVal->mBaseVal;
mSVGElement->DidAnimateInteger(mVal->mAttrEnum);
}
}
nsresult SVGInteger::SMILInteger::SetAnimValue(const nsSMILValue &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