Add m-esr52 at 52.6.0

1 files changed, 242 insertions, 0 deletions

diff --git a/dom/svg/nsSVGFilters.h b/dom/svg/nsSVGFilters.h
new file mode 100644
index 000000000..4d845b244
--- /dev/null
+++ b/dom/svg/nsSVGFilters.h
@@ -0,0 +1,242 @@
+/* -*- 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/. */
+
+#ifndef __NS_SVGFILTERSELEMENT_H__
+#define __NS_SVGFILTERSELEMENT_H__
+
+#include "mozilla/Attributes.h"
+#include "nsImageLoadingContent.h"
+#include "nsSVGLength2.h"
+#include "nsSVGString.h"
+#include "nsSVGElement.h"
+#include "nsSVGNumber2.h"
+#include "nsSVGNumberPair.h"
+#include "FilterSupport.h"
+
+class nsSVGFilterInstance;
+class nsSVGNumberPair;
+
+struct nsSVGStringInfo {
+  nsSVGStringInfo(const nsSVGString* aString,
+                  nsSVGElement *aElement) :
+    mString(aString), mElement(aElement) {}
+
+  const nsSVGString* mString;
+  nsSVGElement* mElement;
+};
+
+typedef nsSVGElement nsSVGFEBase;
+
+#define NS_SVG_FE_CID \
+{ 0x60483958, 0xd229, 0x4a77, \
+  { 0x96, 0xb2, 0x62, 0x3e, 0x69, 0x95, 0x1e, 0x0e } }
+
+/**
+ * Base class for filter primitive elements
+ * Children of those elements e.g. feMergeNode
+ * derive from SVGFEUnstyledElement instead
+ */
+class nsSVGFE : public nsSVGFEBase
+{
+  friend class nsSVGFilterInstance;
+
+protected:
+  typedef mozilla::gfx::SourceSurface SourceSurface;
+  typedef mozilla::gfx::Size Size;
+  typedef mozilla::gfx::IntRect IntRect;
+  typedef mozilla::gfx::ColorSpace ColorSpace;
+  typedef mozilla::gfx::FilterPrimitiveDescription FilterPrimitiveDescription;
+
+  explicit nsSVGFE(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo)
+    : nsSVGFEBase(aNodeInfo) {}
+  virtual ~nsSVGFE() {}
+
+public:
+  typedef mozilla::gfx::AttributeMap AttributeMap;
+
+  ColorSpace
+  GetInputColorSpace(int32_t aInputIndex, ColorSpace aUnchangedInputColorSpace) {
+    return OperatesOnSRGB(aInputIndex, aUnchangedInputColorSpace == ColorSpace::SRGB) ?
+             ColorSpace::SRGB : ColorSpace::LinearRGB;
+  }
+
+  // This is only called for filter primitives without inputs. For primitives
+  // with inputs, the output color model is the same as of the first input.
+  ColorSpace
+  GetOutputColorSpace() {
+    return ProducesSRGB() ? ColorSpace::SRGB : ColorSpace::LinearRGB;
+  }
+
+  // See http://www.w3.org/TR/SVG/filters.html#FilterPrimitiveSubRegion
+  virtual bool SubregionIsUnionOfRegions() { return true; }
+
+  NS_DECLARE_STATIC_IID_ACCESSOR(NS_SVG_FE_CID)
+
+  // interfaces:
+  NS_DECL_ISUPPORTS_INHERITED
+
+  // nsIContent interface
+  NS_IMETHOD_(bool) IsAttributeMapped(const nsIAtom* aAttribute) const override;
+
+  // nsSVGElement interface
+  virtual nsresult Clone(mozilla::dom::NodeInfo *aNodeInfo, nsINode **aResult) const override = 0;
+
+  virtual bool HasValidDimensions() const override;
+
+  bool IsNodeOfType(uint32_t aFlags) const override
+    { return !(aFlags & ~(eCONTENT | eFILTER)); }
+
+  virtual nsSVGString& GetResultImageName() = 0;
+  // Return a list of all image names used as sources. Default is to
+  // return no sources.
+  virtual void GetSourceImageNames(nsTArray<nsSVGStringInfo>& aSources);
+
+  virtual FilterPrimitiveDescription
+    GetPrimitiveDescription(nsSVGFilterInstance* aInstance,
+                            const IntRect& aFilterSubregion,
+                            const nsTArray<bool>& aInputsAreTainted,
+                            nsTArray<RefPtr<SourceSurface>>& aInputImages) = 0;
+
+  // returns true if changes to the attribute should cause us to
+  // repaint the filter
+  virtual bool AttributeAffectsRendering(
+          int32_t aNameSpaceID, nsIAtom* aAttribute) const;
+
+  // Return whether this filter primitive has tainted output. A filter's
+  // output is tainted if it depends on things that the web page is not
+  // allowed to read from, e.g. the source graphic or cross-origin images.
+  // aReferencePrincipal is the node principal of the filtered frame's element.
+  virtual bool OutputIsTainted(const nsTArray<bool>& aInputsAreTainted,
+                               nsIPrincipal* aReferencePrincipal);
+
+  static nsIntRect GetMaxRect() {
+    // Try to avoid overflow errors dealing with this rect. It will
+    // be intersected with some other reasonable-sized rect eventually.
+    return nsIntRect(INT32_MIN/2, INT32_MIN/2, INT32_MAX, INT32_MAX);
+  }
+
+  operator nsISupports*() { return static_cast<nsIContent*>(this); }
+
+  // WebIDL
+  already_AddRefed<mozilla::dom::SVGAnimatedLength> X();
+  already_AddRefed<mozilla::dom::SVGAnimatedLength> Y();
+  already_AddRefed<mozilla::dom::SVGAnimatedLength> Width();
+  already_AddRefed<mozilla::dom::SVGAnimatedLength> Height();
+  already_AddRefed<mozilla::dom::SVGAnimatedString> Result();
+
+protected:
+  virtual bool OperatesOnSRGB(int32_t aInputIndex, bool aInputIsAlreadySRGB) {
+    return StyleIsSetToSRGB();
+  }
+
+  // Only called for filter primitives without inputs.
+  virtual bool ProducesSRGB() { return StyleIsSetToSRGB(); }
+
+  bool StyleIsSetToSRGB();
+
+  // nsSVGElement specializations:
+  virtual LengthAttributesInfo GetLengthInfo() override;
+
+  Size GetKernelUnitLength(nsSVGFilterInstance* aInstance,
+                          nsSVGNumberPair *aKernelUnitLength);
+
+  enum { ATTR_X, ATTR_Y, ATTR_WIDTH, ATTR_HEIGHT };
+  nsSVGLength2 mLengthAttributes[4];
+  static LengthInfo sLengthInfo[4];
+};
+
+NS_DEFINE_STATIC_IID_ACCESSOR(nsSVGFE, NS_SVG_FE_CID)
+
+typedef nsSVGElement SVGFEUnstyledElementBase;
+
+class SVGFEUnstyledElement : public SVGFEUnstyledElementBase
+{
+protected:
+  explicit SVGFEUnstyledElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo)
+    : SVGFEUnstyledElementBase(aNodeInfo) {}
+
+public:
+  virtual nsresult Clone(mozilla::dom::NodeInfo *aNodeInfo, nsINode **aResult) const override = 0;
+
+  // returns true if changes to the attribute should cause us to
+  // repaint the filter
+  virtual bool AttributeAffectsRendering(
+          int32_t aNameSpaceID, nsIAtom* aAttribute) const = 0;
+};
+
+//------------------------------------------------------------
+
+typedef nsSVGFE nsSVGFELightingElementBase;
+
+class nsSVGFELightingElement : public nsSVGFELightingElementBase
+{
+protected:
+  explicit nsSVGFELightingElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo)
+    : nsSVGFELightingElementBase(aNodeInfo) {}
+
+  virtual ~nsSVGFELightingElement() {}
+
+public:
+  // interfaces:
+  NS_DECL_ISUPPORTS_INHERITED
+
+  virtual bool AttributeAffectsRendering(
+          int32_t aNameSpaceID, nsIAtom* aAttribute) const override;
+  virtual nsSVGString& GetResultImageName() override { return mStringAttributes[RESULT]; }
+  virtual void GetSourceImageNames(nsTArray<nsSVGStringInfo>& aSources) override;
+  NS_FORWARD_NSIDOMSVGELEMENT(nsSVGFELightingElementBase::)
+
+  NS_IMETHOD_(bool) IsAttributeMapped(const nsIAtom* aAttribute) const override;
+
+protected:
+  virtual bool OperatesOnSRGB(int32_t aInputIndex,
+                              bool aInputIsAlreadySRGB) override { return true; }
+
+  virtual NumberAttributesInfo GetNumberInfo() override;
+  virtual NumberPairAttributesInfo GetNumberPairInfo() override;
+  virtual StringAttributesInfo GetStringInfo() override;
+
+  AttributeMap ComputeLightAttributes(nsSVGFilterInstance* aInstance);
+
+  FilterPrimitiveDescription
+    AddLightingAttributes(FilterPrimitiveDescription aDescription,
+                          nsSVGFilterInstance* aInstance);
+
+  enum { SURFACE_SCALE, DIFFUSE_CONSTANT, SPECULAR_CONSTANT, SPECULAR_EXPONENT };
+  nsSVGNumber2 mNumberAttributes[4];
+  static NumberInfo sNumberInfo[4];
+
+  enum { KERNEL_UNIT_LENGTH };
+  nsSVGNumberPair mNumberPairAttributes[1];
+  static NumberPairInfo sNumberPairInfo[1];
+
+  enum { RESULT, IN1 };
+  nsSVGString mStringAttributes[2];
+  static StringInfo sStringInfo[2];
+};
+
+namespace mozilla {
+namespace dom {
+
+typedef SVGFEUnstyledElement SVGFELightElementBase;
+
+class SVGFELightElement : public SVGFELightElementBase
+{
+protected:
+  explicit SVGFELightElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo)
+    : SVGFELightElementBase(aNodeInfo) {}
+
+public:
+  typedef gfx::AttributeMap AttributeMap;
+
+  virtual AttributeMap
+    ComputeLightAttributes(nsSVGFilterInstance* aInstance) = 0;
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif