/* -*- 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 "nsSVGString.h"

#include "mozilla/Move.h"

#include "nsSVGAttrTearoffTable.h"

#include "nsSMILValue.h"

#include "SMILStringType.h"

using namespace mozilla;

using namespace mozilla::dom;

NS_SVG_VAL_IMPL_CYCLE_COLLECTION_WRAPPERCACHED(nsSVGString::DOMAnimatedString, mSVGElement)

NS_IMPL_CYCLE_COLLECTING_ADDREF(nsSVGString::DOMAnimatedString)

NS_IMPL_CYCLE_COLLECTING_RELEASE(nsSVGString::DOMAnimatedString)

NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsSVGString::DOMAnimatedString)

  NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY

  NS_INTERFACE_MAP_ENTRY(nsISupports)

NS_INTERFACE_MAP_END

static inline

nsSVGAttrTearoffTable<nsSVGString, nsSVGString::DOMAnimatedString>&

SVGAnimatedStringTearoffTable()

{

  static nsSVGAttrTearoffTable<nsSVGString, nsSVGString::DOMAnimatedString>

    sSVGAnimatedStringTearoffTable;

  return sSVGAnimatedStringTearoffTable;

}

/* Implementation */

void

nsSVGString::SetBaseValue(const nsAString& aValue,

                          nsSVGElement *aSVGElement,

                          bool aDoSetAttr)

{

  NS_ASSERTION(aSVGElement, "Null element passed to SetBaseValue");

  mIsBaseSet = true;

  if (aDoSetAttr) {

    aSVGElement->SetStringBaseValue(mAttrEnum, aValue);

  }

  if (mAnimVal) {

    aSVGElement->AnimationNeedsResample();

  }

  aSVGElement->DidChangeString(mAttrEnum);

}

void

nsSVGString::GetAnimValue(nsAString& aResult, const nsSVGElement *aSVGElement) const

{

  if (mAnimVal) {

    aResult = *mAnimVal;

    return;

  }

  aSVGElement->GetStringBaseValue(mAttrEnum, aResult);

}

void

nsSVGString::SetAnimValue(const nsAString& aValue, nsSVGElement *aSVGElement)

{

  if (aSVGElement->IsStringAnimatable(mAttrEnum)) {

    if (mAnimVal && mAnimVal->Equals(aValue)) {

      return;

    }

    if (!mAnimVal) {

      mAnimVal = new nsString();

    }

    *mAnimVal = aValue;

    aSVGElement->DidAnimateString(mAttrEnum);

  }

}

already_AddRefed<SVGAnimatedString>

nsSVGString::ToDOMAnimatedString(nsSVGElement* aSVGElement)

{

  RefPtr<DOMAnimatedString> domAnimatedString =

    SVGAnimatedStringTearoffTable().GetTearoff(this);

  if (!domAnimatedString) {

    domAnimatedString = new DOMAnimatedString(this, aSVGElement);

    SVGAnimatedStringTearoffTable().AddTearoff(this, domAnimatedString);

  }

  return domAnimatedString.forget();

}

nsSVGString::DOMAnimatedString::~DOMAnimatedString()

{

  SVGAnimatedStringTearoffTable().RemoveTearoff(mVal);

}

UniquePtr<nsISMILAttr>

nsSVGString::ToSMILAttr(nsSVGElement *aSVGElement)

{

  return MakeUnique<SMILString>(this, aSVGElement);

}

nsresult

nsSVGString::SMILString::ValueFromString(const nsAString& aStr,

                                         const dom::SVGAnimationElement* /*aSrcElement*/,

                                         nsSMILValue& aValue,

                                         bool& aPreventCachingOfSandwich) const

{

  nsSMILValue val(SMILStringType::Singleton());

  *static_cast<nsAString*>(val.mU.mPtr) = aStr;

  aValue = std::move(val);

  aPreventCachingOfSandwich = false;

  return NS_OK;

}

nsSMILValue

nsSVGString::SMILString::GetBaseValue() const

{

  nsSMILValue val(SMILStringType::Singleton());

  mSVGElement->GetStringBaseValue(mVal->mAttrEnum, *static_cast<nsAString*>(val.mU.mPtr));

  return val;

}

void

nsSVGString::SMILString::ClearAnimValue()

{

  if (mVal->mAnimVal) {

    mVal->mAnimVal = nullptr;

    mSVGElement->DidAnimateString(mVal->mAttrEnum);

  }

}

nsresult

nsSVGString::SMILString::SetAnimValue(const nsSMILValue& 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;

}