/* -*- 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 "mozilla/dom/SVGFEDropShadowElement.h"

#include "mozilla/dom/SVGFEDropShadowElementBinding.h"

#include "nsIFrame.h"

#include "nsSVGFilterInstance.h"

NS_IMPL_NS_NEW_NAMESPACED_SVG_ELEMENT(FEDropShadow)

using namespace mozilla::gfx;

namespace mozilla {

namespace dom {

JSObject*

SVGFEDropShadowElement::WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)

{

  return SVGFEDropShadowElement_Binding::Wrap(aCx, this, aGivenProto);

}

nsSVGElement::NumberInfo SVGFEDropShadowElement::sNumberInfo[2] =

{

  { &nsGkAtoms::dx, 2, false },

  { &nsGkAtoms::dy, 2, false }

};

nsSVGElement::NumberPairInfo SVGFEDropShadowElement::sNumberPairInfo[1] =

{

  { &nsGkAtoms::stdDeviation, 2, 2 }

};

nsSVGElement::StringInfo SVGFEDropShadowElement::sStringInfo[2] =

{

  { &nsGkAtoms::result, kNameSpaceID_None, true },

  { &nsGkAtoms::in, kNameSpaceID_None, true }

};

//----------------------------------------------------------------------

// nsINode methods

NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGFEDropShadowElement)

//----------------------------------------------------------------------

already_AddRefed<SVGAnimatedString>

SVGFEDropShadowElement::In1()

{

  return mStringAttributes[IN1].ToDOMAnimatedString(this);

}

already_AddRefed<SVGAnimatedNumber>

SVGFEDropShadowElement::Dx()

{

  return mNumberAttributes[DX].ToDOMAnimatedNumber(this);

}

already_AddRefed<SVGAnimatedNumber>

SVGFEDropShadowElement::Dy()

{

  return mNumberAttributes[DY].ToDOMAnimatedNumber(this);

}

already_AddRefed<SVGAnimatedNumber>

SVGFEDropShadowElement::StdDeviationX()

{

  return mNumberPairAttributes[STD_DEV].ToDOMAnimatedNumber(nsSVGNumberPair::eFirst, this);

}

already_AddRefed<SVGAnimatedNumber>

SVGFEDropShadowElement::StdDeviationY()

{

  return mNumberPairAttributes[STD_DEV].ToDOMAnimatedNumber(nsSVGNumberPair::eSecond, this);

}

void

SVGFEDropShadowElement::SetStdDeviation(float stdDeviationX, float stdDeviationY)

{

  mNumberPairAttributes[STD_DEV].SetBaseValues(stdDeviationX, stdDeviationY, this);

}

FilterPrimitiveDescription

SVGFEDropShadowElement::GetPrimitiveDescription(nsSVGFilterInstance* aInstance,

                                                const IntRect& aFilterSubregion,

                                                const nsTArray<bool>& aInputsAreTainted,

                                                nsTArray<RefPtr<SourceSurface>>& aInputImages)

{

  float stdX = aInstance->GetPrimitiveNumber(SVGContentUtils::X,

                                             &mNumberPairAttributes[STD_DEV],

                                             nsSVGNumberPair::eFirst);

  float stdY = aInstance->GetPrimitiveNumber(SVGContentUtils::Y,

                                             &mNumberPairAttributes[STD_DEV],

                                             nsSVGNumberPair::eSecond);

  if (stdX < 0 || stdY < 0) {

    return FilterPrimitiveDescription();

  }

  IntPoint offset(int32_t(aInstance->GetPrimitiveNumber(

                            SVGContentUtils::X, &mNumberAttributes[DX])),

                  int32_t(aInstance->GetPrimitiveNumber(

                            SVGContentUtils::Y, &mNumberAttributes[DY])));

  DropShadowAttributes atts;

  atts.mStdDeviation = Size(stdX, stdY);

  atts.mOffset = offset;

  nsIFrame* frame = GetPrimaryFrame();

  if (frame) {

    const nsStyleSVGReset* styleSVGReset = frame->Style()->StyleSVGReset();

    Color color(Color::FromABGR(styleSVGReset->mFloodColor.CalcColor(frame)));

    color.a *= styleSVGReset->mFloodOpacity;

    atts.mColor = color;

  } else {

    atts.mColor = Color();

  }

  return FilterPrimitiveDescription(AsVariant(std::move(atts)));

}

bool

SVGFEDropShadowElement::AttributeAffectsRendering(int32_t aNameSpaceID,

                                                  nsAtom* aAttribute) const

{

  return SVGFEDropShadowElementBase::AttributeAffectsRendering(aNameSpaceID, aAttribute) ||

         (aNameSpaceID == kNameSpaceID_None &&

          (aAttribute == nsGkAtoms::in ||

           aAttribute == nsGkAtoms::stdDeviation ||

           aAttribute == nsGkAtoms::dx ||

           aAttribute == nsGkAtoms::dy));

}

void

SVGFEDropShadowElement::GetSourceImageNames(nsTArray<nsSVGStringInfo>& aSources)

{

  aSources.AppendElement(nsSVGStringInfo(&mStringAttributes[IN1], this));

}

//----------------------------------------------------------------------

// nsIContent methods

NS_IMETHODIMP_(bool)

SVGFEDropShadowElement::IsAttributeMapped(const nsAtom* name) const

{

  static const MappedAttributeEntry* const map[] = {

    sFEFloodMap

  };

  return FindAttributeDependence(name, map) ||

    SVGFEDropShadowElementBase::IsAttributeMapped(name);

}

//----------------------------------------------------------------------

// nsSVGElement methods

nsSVGElement::NumberAttributesInfo

SVGFEDropShadowElement::GetNumberInfo()

{

  return NumberAttributesInfo(mNumberAttributes, sNumberInfo,

                              ArrayLength(sNumberInfo));

}

nsSVGElement::NumberPairAttributesInfo

SVGFEDropShadowElement::GetNumberPairInfo()

{

  return NumberPairAttributesInfo(mNumberPairAttributes, sNumberPairInfo,

                                  ArrayLength(sNumberPairInfo));

}

nsSVGElement::StringAttributesInfo

SVGFEDropShadowElement::GetStringInfo()

{

  return StringAttributesInfo(mStringAttributes, sStringInfo,

                              ArrayLength(sStringInfo));

}

} // namespace dom

} // namespace mozilla