dom/svg/SVGFESpecularLightingElement.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "mozilla/dom/SVGFESpecularLightingElement.h"
   8 #include "mozilla/dom/SVGFESpecularLightingElementBinding.h"
   9 #include "mozilla/SVGFilterInstance.h"
  10 #include "mozilla/dom/Document.h"
  11 #include "mozilla/dom/BindContext.h"
  12
  13 NS_IMPL_NS_NEW_SVG_ELEMENT(FESpecularLighting)
  14
  15 using namespace mozilla::gfx;
  16
  17 namespace mozilla::dom {
  18
  19 JSObject* SVGFESpecularLightingElement::WrapNode(
  20     JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
  21   return SVGFESpecularLightingElement_Binding::Wrap(aCx, this, aGivenProto);
  22 }
  23
  24 //----------------------------------------------------------------------
  25 // nsINode methods
  26
  27 NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGFESpecularLightingElement)
  28
  29 already_AddRefed<DOMSVGAnimatedString> SVGFESpecularLightingElement::In1() {
  30   return mStringAttributes[IN1].ToDOMAnimatedString(this);
  31 }
  32
  33 already_AddRefed<DOMSVGAnimatedNumber>
  34 SVGFESpecularLightingElement::SurfaceScale() {
  35   return mNumberAttributes[SURFACE_SCALE].ToDOMAnimatedNumber(this);
  36 }
  37
  38 already_AddRefed<DOMSVGAnimatedNumber>
  39 SVGFESpecularLightingElement::SpecularConstant() {
  40   return mNumberAttributes[SPECULAR_CONSTANT].ToDOMAnimatedNumber(this);
  41 }
  42
  43 already_AddRefed<DOMSVGAnimatedNumber>
  44 SVGFESpecularLightingElement::SpecularExponent() {
  45   return mNumberAttributes[SPECULAR_EXPONENT].ToDOMAnimatedNumber(this);
  46 }
  47
  48 already_AddRefed<DOMSVGAnimatedNumber>
  49 SVGFESpecularLightingElement::KernelUnitLengthX() {
  50   return mNumberPairAttributes[KERNEL_UNIT_LENGTH].ToDOMAnimatedNumber(
  51       SVGAnimatedNumberPair::eFirst, this);
  52 }
  53
  54 already_AddRefed<DOMSVGAnimatedNumber>
  55 SVGFESpecularLightingElement::KernelUnitLengthY() {
  56   return mNumberPairAttributes[KERNEL_UNIT_LENGTH].ToDOMAnimatedNumber(
  57       SVGAnimatedNumberPair::eSecond, this);
  58 }
  59
  60 //----------------------------------------------------------------------
  61 // SVGElement methods
  62
  63 FilterPrimitiveDescription
  64 SVGFESpecularLightingElement::GetPrimitiveDescription(
  65     SVGFilterInstance* aInstance, const IntRect& aFilterSubregion,
  66     const nsTArray<bool>& aInputsAreTainted,
  67     nsTArray<RefPtr<SourceSurface>>& aInputImages) {
  68   float specularExponent = mNumberAttributes[SPECULAR_EXPONENT].GetAnimValue();
  69   float specularConstant = mNumberAttributes[SPECULAR_CONSTANT].GetAnimValue();
  70
  71   // specification defined range (15.22)
  72   if (specularExponent < 1 || specularExponent > 128) {
  73     return FilterPrimitiveDescription();
  74   }
  75
  76   SpecularLightingAttributes atts;
  77   atts.mLightingConstant = specularConstant;
  78   atts.mSpecularExponent = specularExponent;
  79   if (!AddLightingAttributes(static_cast<DiffuseLightingAttributes*>(&atts),
  80                              aInstance)) {
  81     return FilterPrimitiveDescription();
  82   }
  83
  84   return FilterPrimitiveDescription(AsVariant(std::move(atts)));
  85 }
  86
  87 bool SVGFESpecularLightingElement::AttributeAffectsRendering(
  88     int32_t aNameSpaceID, nsAtom* aAttribute) const {
  89   return SVGFESpecularLightingElementBase::AttributeAffectsRendering(
  90              aNameSpaceID, aAttribute) ||
  91          (aNameSpaceID == kNameSpaceID_None &&
  92           (aAttribute == nsGkAtoms::specularConstant ||
  93            aAttribute == nsGkAtoms::specularExponent));
  94 }
  95
  96 nsresult SVGFESpecularLightingElement::BindToTree(BindContext& aCtx,
  97                                                   nsINode& aParent) {
  98   if (aCtx.InComposedDoc()) {
  99     aCtx.OwnerDoc().SetUseCounter(eUseCounter_custom_feSpecularLighting);
 100   }
 101
 102   return SVGFESpecularLightingElementBase::BindToTree(aCtx, aParent);
 103 }
 104
 105 }  // namespace mozilla::dom