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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
#include "SVGAnimatedBoolean.h"
#include "DOMSVGAnimatedBoolean.h"
#include "nsError.h"
#include "SMILBoolType.h"
#include "SVGAttrTearoffTable.h"
#include "mozilla/SMILValue.h"
using namespace mozilla::dom;
namespace mozilla {
/* Implementation */
//----------------------------------------------------------------------
// Helper class: AutoChangeBooleanNotifier
// Stack-based helper class to ensure DidChangeBoolean is called.
class MOZ_RAII AutoChangeBooleanNotifier {
public:
AutoChangeBooleanNotifier(SVGAnimatedBoolean* aBoolean,
SVGElement* aSVGElement, bool aDoSetAttr = true)
: mBoolean(aBoolean), mSVGElement(aSVGElement), mDoSetAttr(aDoSetAttr) {
MOZ_ASSERT(mBoolean, "Expecting non-null boolean");
MOZ_ASSERT(mSVGElement, "Expecting non-null element");
}
~AutoChangeBooleanNotifier() {
if (mDoSetAttr) {
mSVGElement->DidChangeBoolean(mBoolean->mAttrEnum);
}
if (mBoolean->mIsAnimated) {
mSVGElement->AnimationNeedsResample();
}
}
private:
SVGAnimatedBoolean* const mBoolean;
SVGElement* const mSVGElement;
bool mDoSetAttr;
};
static inline SVGAttrTearoffTable<SVGAnimatedBoolean, DOMSVGAnimatedBoolean>&
SVGAnimatedBooleanTearoffTable() {
static SVGAttrTearoffTable<SVGAnimatedBoolean, DOMSVGAnimatedBoolean>
sSVGAnimatedBooleanTearoffTable;
return sSVGAnimatedBooleanTearoffTable;
}
static bool GetValueFromString(const nsAString& aValueAsString, bool& aValue) {
if (aValueAsString.EqualsLiteral("true")) {
aValue = true;
return true;
}
if (aValueAsString.EqualsLiteral("false")) {
aValue = false;
return true;
}
return false;
}
static nsresult GetValueFromAtom(const nsAtom* aValueAsAtom, bool* aValue) {
if (aValueAsAtom == nsGkAtoms::_true) {
*aValue = true;
return NS_OK;
}
if (aValueAsAtom == nsGkAtoms::_false) {
*aValue = false;
return NS_OK;
}
return NS_ERROR_DOM_SYNTAX_ERR;
}
nsresult SVGAnimatedBoolean::SetBaseValueAtom(const nsAtom* aValue,
SVGElement* aSVGElement) {
bool val = false;
nsresult rv = GetValueFromAtom(aValue, &val);
if (NS_FAILED(rv)) {
return rv;
}
// We don't need to call DidChange* here - we're only called by
// SVGElement::ParseAttribute under Element::SetAttr,
// which takes care of notifying.
AutoChangeBooleanNotifier notifier(this, aSVGElement, false);
mBaseVal = val;
if (!mIsAnimated) {
mAnimVal = mBaseVal;
}
return NS_OK;
}
nsAtom* SVGAnimatedBoolean::GetBaseValueAtom() const {
return mBaseVal ? nsGkAtoms::_true : nsGkAtoms::_false;
}
void SVGAnimatedBoolean::SetBaseValue(bool aValue, SVGElement* aSVGElement) {
if (aValue == mBaseVal) {
return;
}
AutoChangeBooleanNotifier notifier(this, aSVGElement);
mBaseVal = aValue;
if (!mIsAnimated) {
mAnimVal = mBaseVal;
}
}
void SVGAnimatedBoolean::SetAnimValue(bool aValue, SVGElement* aSVGElement) {
if (mIsAnimated && mAnimVal == aValue) {
return;
}
mAnimVal = aValue;
mIsAnimated = true;
aSVGElement->DidAnimateBoolean(mAttrEnum);
}
already_AddRefed<DOMSVGAnimatedBoolean>
SVGAnimatedBoolean::ToDOMAnimatedBoolean(SVGElement* aSVGElement) {
RefPtr<DOMSVGAnimatedBoolean> domAnimatedBoolean =
SVGAnimatedBooleanTearoffTable().GetTearoff(this);
if (!domAnimatedBoolean) {
domAnimatedBoolean = new DOMSVGAnimatedBoolean(this, aSVGElement);
SVGAnimatedBooleanTearoffTable().AddTearoff(this, domAnimatedBoolean);
}
return domAnimatedBoolean.forget();
}
DOMSVGAnimatedBoolean::~DOMSVGAnimatedBoolean() {
SVGAnimatedBooleanTearoffTable().RemoveTearoff(mVal);
}
UniquePtr<SMILAttr> SVGAnimatedBoolean::ToSMILAttr(SVGElement* aSVGElement) {
return MakeUnique<SMILBool>(this, aSVGElement);
}
nsresult SVGAnimatedBoolean::SMILBool::ValueFromString(
const nsAString& aStr, const SVGAnimationElement* /*aSrcElement*/,
SMILValue& aValue, bool& aPreventCachingOfSandwich) const {
bool value;
if (!GetValueFromString(aStr, value)) {
return NS_ERROR_DOM_SYNTAX_ERR;
}
SMILValue val(SMILBoolType::Singleton());
val.mU.mBool = value;
aValue = val;
return NS_OK;
}
SMILValue SVGAnimatedBoolean::SMILBool::GetBaseValue() const {
SMILValue val(SMILBoolType::Singleton());
val.mU.mBool = mVal->mBaseVal;
return val;
}
void SVGAnimatedBoolean::SMILBool::ClearAnimValue() {
if (mVal->mIsAnimated) {
mVal->mIsAnimated = false;
mVal->mAnimVal = mVal->mBaseVal;
mSVGElement->DidAnimateBoolean(mVal->mAttrEnum);
}
}
nsresult SVGAnimatedBoolean::SMILBool::SetAnimValue(const SMILValue& aValue) {
NS_ASSERTION(aValue.mType == SMILBoolType::Singleton(),
"Unexpected type to assign animated value");
if (aValue.mType == SMILBoolType::Singleton()) {
mVal->SetAnimValue(uint16_t(aValue.mU.mBool), mSVGElement);
}
return NS_OK;
}
} // namespace mozilla