dom/svg/SVGFEImageElement.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef mozilla_dom_SVGFEImageElement_h
   7 #define mozilla_dom_SVGFEImageElement_h
   8
   9 #include "nsSVGFilters.h"
  10 #include "SVGAnimatedPreserveAspectRatio.h"
  11
  12 class SVGFEImageFrame;
  13
  14 nsresult NS_NewSVGFEImageElement(nsIContent **aResult,
  15                                  already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
  16
  17 namespace mozilla {
  18 namespace dom {
  19
  20 typedef nsSVGFE SVGFEImageElementBase;
  21
  22 class SVGFEImageElement : public SVGFEImageElementBase,
  23                           public nsImageLoadingContent
  24 {
  25   friend class ::SVGFEImageFrame;
  26
  27 protected:
  28   friend nsresult (::NS_NewSVGFEImageElement(nsIContent **aResult,
  29                                              already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo));
  30   explicit SVGFEImageElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo);
  31   virtual ~SVGFEImageElement();
  32   virtual JSObject* WrapNode(JSContext *aCx) MOZ_OVERRIDE;
  33
  34 public:
  35   virtual bool SubregionIsUnionOfRegions() MOZ_OVERRIDE { return false; }
  36
  37   // interfaces:
  38   NS_DECL_ISUPPORTS_INHERITED
  39
  40   virtual FilterPrimitiveDescription
  41     GetPrimitiveDescription(nsSVGFilterInstance* aInstance,
  42                             const IntRect& aFilterSubregion,
  43                             const nsTArray<bool>& aInputsAreTainted,
  44                             nsTArray<mozilla::RefPtr<SourceSurface>>& aInputImages) MOZ_OVERRIDE;
  45   virtual bool AttributeAffectsRendering(
  46           int32_t aNameSpaceID, nsIAtom* aAttribute) const MOZ_OVERRIDE;
  47   virtual nsSVGString& GetResultImageName() MOZ_OVERRIDE { return mStringAttributes[RESULT]; }
  48   virtual bool OutputIsTainted(const nsTArray<bool>& aInputsAreTainted,
  49                                nsIPrincipal* aReferencePrincipal) MOZ_OVERRIDE;
  50
  51   // nsIContent
  52   NS_IMETHOD_(bool) IsAttributeMapped(const nsIAtom* aAttribute) const MOZ_OVERRIDE;
  53
  54   virtual nsresult Clone(mozilla::dom::NodeInfo *aNodeInfo, nsINode **aResult) const MOZ_OVERRIDE;
  55
  56   virtual nsresult AfterSetAttr(int32_t aNamespaceID, nsIAtom* aName,
  57                                 const nsAttrValue* aValue, bool aNotify) MOZ_OVERRIDE;
  58   virtual nsresult BindToTree(nsIDocument* aDocument, nsIContent* aParent,
  59                               nsIContent* aBindingParent,
  60                               bool aCompileEventHandlers) MOZ_OVERRIDE;
  61   virtual void UnbindFromTree(bool aDeep, bool aNullParent) MOZ_OVERRIDE;
  62   virtual EventStates IntrinsicState() const MOZ_OVERRIDE;
  63
  64   NS_IMETHODIMP Notify(imgIRequest *aRequest, int32_t aType, const nsIntRect* aData) MOZ_OVERRIDE;
  65
  66   void MaybeLoadSVGImage();
  67
  68   // WebIDL
  69   already_AddRefed<SVGAnimatedString> Href();
  70   already_AddRefed<DOMSVGAnimatedPreserveAspectRatio> PreserveAspectRatio();
  71
  72 private:
  73   // Invalidate users of the filter containing this element.
  74   void Invalidate();
  75
  76   nsresult LoadSVGImage(bool aForce, bool aNotify);
  77
  78 protected:
  79   virtual bool ProducesSRGB() MOZ_OVERRIDE { return true; }
  80
  81   virtual SVGAnimatedPreserveAspectRatio *GetPreserveAspectRatio() MOZ_OVERRIDE;
  82   virtual StringAttributesInfo GetStringInfo() MOZ_OVERRIDE;
  83
  84   enum { RESULT, HREF };
  85   nsSVGString mStringAttributes[2];
  86   static StringInfo sStringInfo[2];
  87
  88   SVGAnimatedPreserveAspectRatio mPreserveAspectRatio;
  89 };
  90
  91 } // namespace dom
  92 } // namespace mozilla
  93
  94 #endif