dom/svg/SVGFEOffsetElement.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/SVGFEOffsetElement.h"
   8 #include "mozilla/dom/SVGFEOffsetElementBinding.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(FEOffset)
  14
  15 using namespace mozilla::gfx;
  16
  17 namespace mozilla::dom {
  18
  19 JSObject* SVGFEOffsetElement::WrapNode(JSContext* aCx,
  20                                        JS::Handle<JSObject*> aGivenProto) {
  21   return SVGFEOffsetElement_Binding::Wrap(aCx, this, aGivenProto);
  22 }
  23
  24 SVGElement::NumberInfo SVGFEOffsetElement::sNumberInfo[2] = {
  25     {nsGkAtoms::dx, 0}, {nsGkAtoms::dy, 0}};
  26
  27 SVGElement::StringInfo SVGFEOffsetElement::sStringInfo[2] = {
  28     {nsGkAtoms::result, kNameSpaceID_None, true},
  29     {nsGkAtoms::in, kNameSpaceID_None, true}};
  30
  31 //----------------------------------------------------------------------
  32 // nsINode methods
  33
  34 NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGFEOffsetElement)
  35
  36 //----------------------------------------------------------------------
  37
  38 already_AddRefed<DOMSVGAnimatedString> SVGFEOffsetElement::In1() {
  39   return mStringAttributes[IN1].ToDOMAnimatedString(this);
  40 }
  41
  42 already_AddRefed<DOMSVGAnimatedNumber> SVGFEOffsetElement::Dx() {
  43   return mNumberAttributes[DX].ToDOMAnimatedNumber(this);
  44 }
  45
  46 already_AddRefed<DOMSVGAnimatedNumber> SVGFEOffsetElement::Dy() {
  47   return mNumberAttributes[DY].ToDOMAnimatedNumber(this);
  48 }
  49
  50 FilterPrimitiveDescription SVGFEOffsetElement::GetPrimitiveDescription(
  51     SVGFilterInstance* aInstance, const IntRect& aFilterSubregion,
  52     const nsTArray<bool>& aInputsAreTainted,
  53     nsTArray<RefPtr<SourceSurface>>& aInputImages) {
  54   OffsetAttributes atts;
  55   IntPoint offset(int32_t(aInstance->GetPrimitiveNumber(
  56                       SVGContentUtils::X, &mNumberAttributes[DX])),
  57                   int32_t(aInstance->GetPrimitiveNumber(
  58                       SVGContentUtils::Y, &mNumberAttributes[DY])));
  59   atts.mValue = offset;
  60   return FilterPrimitiveDescription(AsVariant(std::move(atts)));
  61 }
  62
  63 bool SVGFEOffsetElement::AttributeAffectsRendering(int32_t aNameSpaceID,
  64                                                    nsAtom* aAttribute) const {
  65   return SVGFEOffsetElementBase::AttributeAffectsRendering(aNameSpaceID,
  66                                                            aAttribute) ||
  67          (aNameSpaceID == kNameSpaceID_None &&
  68           (aAttribute == nsGkAtoms::in || aAttribute == nsGkAtoms::dx ||
  69            aAttribute == nsGkAtoms::dy));
  70 }
  71
  72 void SVGFEOffsetElement::GetSourceImageNames(
  73     nsTArray<SVGStringInfo>& aSources) {
  74   aSources.AppendElement(SVGStringInfo(&mStringAttributes[IN1], this));
  75 }
  76
  77 nsresult SVGFEOffsetElement::BindToTree(BindContext& aCtx, nsINode& aParent) {
  78   if (aCtx.InComposedDoc()) {
  79     aCtx.OwnerDoc().SetUseCounter(eUseCounter_custom_feOffset);
  80   }
  81
  82   return SVGFEOffsetElementBase::BindToTree(aCtx, aParent);
  83 }
  84
  85 //----------------------------------------------------------------------
  86 // SVGElement methods
  87
  88 SVGElement::NumberAttributesInfo SVGFEOffsetElement::GetNumberInfo() {
  89   return NumberAttributesInfo(mNumberAttributes, sNumberInfo,
  90                               ArrayLength(sNumberInfo));
  91 }
  92
  93 SVGElement::StringAttributesInfo SVGFEOffsetElement::GetStringInfo() {
  94   return StringAttributesInfo(mStringAttributes, sStringInfo,
  95                               ArrayLength(sStringInfo));
  96 }
  97
  98 }  // namespace mozilla::dom