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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 "nsError.h"
#include "nsSVGAttrTearoffTable.h"
#include "nsSVGEnum.h"
#include "nsIAtom.h"
#include "nsSVGElement.h"
#include "nsSMILValue.h"
#include "SMILEnumType.h"
using namespace mozilla;
using namespace mozilla::dom;
static nsSVGAttrTearoffTable<nsSVGEnum, nsSVGEnum::DOMAnimatedEnum>
sSVGAnimatedEnumTearoffTable;
nsSVGEnumMapping *
nsSVGEnum::GetMapping(nsSVGElement *aSVGElement)
{
nsSVGElement::EnumAttributesInfo info = aSVGElement->GetEnumInfo();
NS_ASSERTION(info.mEnumCount > 0 && mAttrEnum < info.mEnumCount,
"mapping request for a non-attrib enum");
return info.mEnumInfo[mAttrEnum].mMapping;
}
nsresult
nsSVGEnum::SetBaseValueAtom(const nsIAtom* aValue, nsSVGElement *aSVGElement)
{
nsSVGEnumMapping *mapping = GetMapping(aSVGElement);
while (mapping && mapping->mKey) {
if (aValue == *(mapping->mKey)) {
mIsBaseSet = true;
if (mBaseVal != mapping->mVal) {
mBaseVal = mapping->mVal;
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;
}
mapping++;
}
// only a warning since authors may mistype attribute values
NS_WARNING("unknown enumeration key");
return NS_ERROR_DOM_SYNTAX_ERR;
}
nsIAtom*
nsSVGEnum::GetBaseValueAtom(nsSVGElement *aSVGElement)
{
nsSVGEnumMapping *mapping = GetMapping(aSVGElement);
while (mapping && mapping->mKey) {
if (mBaseVal == mapping->mVal) {
return *mapping->mKey;
}
mapping++;
}
NS_ERROR("unknown enumeration value");
return nsGkAtoms::_empty;
}
nsresult
nsSVGEnum::SetBaseValue(uint16_t aValue,
nsSVGElement *aSVGElement)
{
nsSVGEnumMapping *mapping = GetMapping(aSVGElement);
while (mapping && mapping->mKey) {
if (mapping->mVal == aValue) {
mIsBaseSet = true;
if (mBaseVal != uint8_t(aValue)) {
mBaseVal = uint8_t(aValue);
if (!mIsAnimated) {
mAnimVal = mBaseVal;
}
else {
aSVGElement->AnimationNeedsResample();
}
aSVGElement->DidChangeEnum(mAttrEnum);
}
return NS_OK;
}
mapping++;
}
return NS_ERROR_DOM_SYNTAX_ERR;
}
void
nsSVGEnum::SetAnimValue(uint16_t aValue, nsSVGElement *aSVGElement)
{
if (mIsAnimated && aValue == mAnimVal) {
return;
}
mAnimVal = aValue;
mIsAnimated = true;
aSVGElement->DidAnimateEnum(mAttrEnum);
}
already_AddRefed<SVGAnimatedEnumeration>
nsSVGEnum::ToDOMAnimatedEnum(nsSVGElement* aSVGElement)
{
RefPtr<DOMAnimatedEnum> domAnimatedEnum =
sSVGAnimatedEnumTearoffTable.GetTearoff(this);
if (!domAnimatedEnum) {
domAnimatedEnum = new DOMAnimatedEnum(this, aSVGElement);
sSVGAnimatedEnumTearoffTable.AddTearoff(this, domAnimatedEnum);
}
return domAnimatedEnum.forget();
}
nsSVGEnum::DOMAnimatedEnum::~DOMAnimatedEnum()
{
sSVGAnimatedEnumTearoffTable.RemoveTearoff(mVal);
}
nsISMILAttr*
nsSVGEnum::ToSMILAttr(nsSVGElement *aSVGElement)
{
return new SMILEnum(this, aSVGElement);
}
nsresult
nsSVGEnum::SMILEnum::ValueFromString(const nsAString& aStr,
const dom::SVGAnimationElement* /*aSrcElement*/,
nsSMILValue& aValue,
bool& aPreventCachingOfSandwich) const
{
nsIAtom *valAtom = NS_GetStaticAtom(aStr);
if (valAtom) {
nsSVGEnumMapping *mapping = mVal->GetMapping(mSVGElement);
while (mapping && mapping->mKey) {
if (valAtom == *(mapping->mKey)) {
nsSMILValue val(SMILEnumType::Singleton());
val.mU.mUint = mapping->mVal;
aValue = val;
aPreventCachingOfSandwich = false;
return NS_OK;
}
mapping++;
}
}
// only a warning since authors may mistype attribute values
NS_WARNING("unknown enumeration key");
return NS_ERROR_FAILURE;
}
nsSMILValue
nsSVGEnum::SMILEnum::GetBaseValue() const
{
nsSMILValue val(SMILEnumType::Singleton());
val.mU.mUint = mVal->mBaseVal;
return val;
}
void
nsSVGEnum::SMILEnum::ClearAnimValue()
{
if (mVal->mIsAnimated) {
mVal->mIsAnimated = false;
mVal->mAnimVal = mVal->mBaseVal;
mSVGElement->DidAnimateEnum(mVal->mAttrEnum);
}
}
nsresult
nsSVGEnum::SMILEnum::SetAnimValue(const nsSMILValue& aValue)
{
NS_ASSERTION(aValue.mType == SMILEnumType::Singleton(),
"Unexpected type to assign animated value");
if (aValue.mType == SMILEnumType::Singleton()) {
MOZ_ASSERT(aValue.mU.mUint <= USHRT_MAX,
"Very large enumerated value - too big for uint16_t");
mVal->SetAnimValue(uint16_t(aValue.mU.mUint), mSVGElement);
}
return NS_OK;
}
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