gecko-dev/dom/svg/nsSVGInteger.cpp

154 строки
3.9 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 "nsError.h"
#include "nsSVGAttrTearoffTable.h"
#include "nsSVGInteger.h"
#include "nsSMILValue.h"
#include "SMILIntegerType.h"
#include "SVGContentUtils.h"
using namespace mozilla;
using namespace mozilla::dom;
/* Implementation */
static nsSVGAttrTearoffTable<nsSVGInteger, nsSVGInteger::DOMAnimatedInteger>
sSVGAnimatedIntegerTearoffTable;
nsresult
nsSVGInteger::SetBaseValueString(const nsAString &aValueAsString,
nsSVGElement *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
nsSVGInteger::GetBaseValueString(nsAString & aValueAsString)
{
aValueAsString.Truncate();
aValueAsString.AppendInt(mBaseVal);
}
void
nsSVGInteger::SetBaseValue(int aValue, nsSVGElement *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
nsSVGInteger::SetAnimValue(int aValue, nsSVGElement *aSVGElement)
{
if (mIsAnimated && aValue == mAnimVal) {
return;
}
mAnimVal = aValue;
mIsAnimated = true;
aSVGElement->DidAnimateInteger(mAttrEnum);
}
already_AddRefed<SVGAnimatedInteger>
nsSVGInteger::ToDOMAnimatedInteger(nsSVGElement *aSVGElement)
{
RefPtr<DOMAnimatedInteger> domAnimatedInteger =
sSVGAnimatedIntegerTearoffTable.GetTearoff(this);
if (!domAnimatedInteger) {
domAnimatedInteger = new DOMAnimatedInteger(this, aSVGElement);
sSVGAnimatedIntegerTearoffTable.AddTearoff(this, domAnimatedInteger);
}
return domAnimatedInteger.forget();
}
nsSVGInteger::DOMAnimatedInteger::~DOMAnimatedInteger()
{
sSVGAnimatedIntegerTearoffTable.RemoveTearoff(mVal);
}
nsISMILAttr*
nsSVGInteger::ToSMILAttr(nsSVGElement *aSVGElement)
{
return new SMILInteger(this, aSVGElement);
}
nsresult
nsSVGInteger::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
nsSVGInteger::SMILInteger::GetBaseValue() const
{
nsSMILValue val(SMILIntegerType::Singleton());
val.mU.mInt = mVal->mBaseVal;
return val;
}
void
nsSVGInteger::SMILInteger::ClearAnimValue()
{
if (mVal->mIsAnimated) {
mVal->mIsAnimated = false;
mVal->mAnimVal = mVal->mBaseVal;
mSVGElement->DidAnimateInteger(mVal->mAttrEnum);
}
}
nsresult
nsSVGInteger::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;
}