/* 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 "SVGAnimatedClass.h"

#include <utility>

#include "DOMSVGAnimatedString.h"
#include "SMILStringType.h"
#include "mozilla/SMILValue.h"
#include "mozilla/dom/SVGElement.h"

namespace mozilla {

void SVGAnimatedClass::SetBaseValue(const nsAString& aValue,
                                    SVGElement* aSVGElement, bool aDoSetAttr) {
  NS_ASSERTION(aSVGElement, "Null element passed to SetBaseValue");

  aSVGElement->SetMayHaveClass();
  if (aDoSetAttr) {
    aSVGElement->SetAttr(kNameSpaceID_None, nsGkAtoms::_class, aValue, true);
  }
  if (!mAnimVal.IsVoid()) {
    aSVGElement->AnimationNeedsResample();
  }
}

void SVGAnimatedClass::GetBaseValue(nsAString& aValue,
                                    const SVGElement* aSVGElement) const {
  aSVGElement->GetAttr(nsGkAtoms::_class, aValue);
}

void SVGAnimatedClass::GetAnimValue(nsAString& aResult,
                                    const SVGElement* aSVGElement) const {
  if (!mAnimVal.IsVoid()) {
    aResult = mAnimVal;
    return;
  }

  aSVGElement->GetAttr(nsGkAtoms::_class, aResult);
}

void SVGAnimatedClass::SetAnimValue(const nsAString& aValue,
                                    SVGElement* aSVGElement) {
  if (!mAnimVal.IsVoid() && mAnimVal.Equals(aValue)) {
    return;
  }
  aSVGElement->WillAnimateClass();
  mAnimVal = aValue;
  aSVGElement->SetMayHaveClass();
  aSVGElement->DidAnimateClass();
}

std::unique_ptr<SMILAttr> SVGAnimatedClass::ToSMILAttr(
    SVGElement* aSVGElement) {
  return std::make_unique<SMILString>(this, aSVGElement);
}

nsresult SVGAnimatedClass::SMILString::ValueFromString(
    const nsAString& aStr, const dom::SVGAnimationElement* /*aSrcElement*/,
    SMILValue& aValue, bool& aPreventCachingOfSandwich) const {
  SMILValue val(SMILStringType::Singleton());

  *static_cast<nsAString*>(val.mU.mPtr) = aStr;
  aValue = std::move(val);
  return NS_OK;
}

SMILValue SVGAnimatedClass::SMILString::GetBaseValue() const {
  SMILValue val(SMILStringType::Singleton());
  mSVGElement->GetAttr(nsGkAtoms::_class,
                       *static_cast<nsAString*>(val.mU.mPtr));
  return val;
}

void SVGAnimatedClass::SMILString::ClearAnimValue() {
  if (!mVal->mAnimVal.IsVoid()) {
    mSVGElement->WillAnimateClass();
    mVal->mAnimVal = VoidString();
    mSVGElement->DidAnimateClass();
  }
}

nsresult SVGAnimatedClass::SMILString::SetAnimValue(const SMILValue& aValue) {
  NS_ASSERTION(aValue.mType == SMILStringType::Singleton(),
               "Unexpected type to assign animated value");
  if (aValue.mType == SMILStringType::Singleton()) {
    mVal->SetAnimValue(*static_cast<nsAString*>(aValue.mU.mPtr), mSVGElement);
  }
  return NS_OK;
}

}  // namespace mozilla