/* -*- 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 mozilla_dom_SVGFEImageElement_h

#define mozilla_dom_SVGFEImageElement_h

#include "nsSVGFilters.h"

#include "SVGAnimatedPreserveAspectRatio.h"

class SVGFEImageFrame;

nsresult NS_NewSVGFEImageElement(nsIContent **aResult,

                                 already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);

namespace mozilla {

namespace dom {

typedef nsSVGFE SVGFEImageElementBase;

class SVGFEImageElement final : public SVGFEImageElementBase,

                                public nsImageLoadingContent

{

  friend class ::SVGFEImageFrame;

protected:

  friend nsresult (::NS_NewSVGFEImageElement(nsIContent **aResult,

                                             already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo));

  explicit SVGFEImageElement(already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);

  virtual ~SVGFEImageElement();

  virtual JSObject* WrapNode(JSContext *aCx, JS::Handle<JSObject*> aGivenProto) override;

public:

  virtual bool SubregionIsUnionOfRegions() override { return false; }

  // interfaces:

  NS_DECL_ISUPPORTS_INHERITED

  // EventTarget

  virtual void AsyncEventRunning(AsyncEventDispatcher* aEvent) override;

  virtual FilterPrimitiveDescription

    GetPrimitiveDescription(nsSVGFilterInstance* aInstance,

                            const IntRect& aFilterSubregion,

                            const nsTArray<bool>& aInputsAreTainted,

                            nsTArray<RefPtr<SourceSurface>>& aInputImages) override;

  virtual bool AttributeAffectsRendering(

          int32_t aNameSpaceID, nsAtom* aAttribute) const override;

  virtual nsSVGString& GetResultImageName() override { return mStringAttributes[RESULT]; }

  virtual bool OutputIsTainted(const nsTArray<bool>& aInputsAreTainted,

                               nsIPrincipal* aReferencePrincipal) override;

  // nsIContent

  NS_IMETHOD_(bool) IsAttributeMapped(const nsAtom* aAttribute) const override;

  virtual nsresult Clone(dom::NodeInfo*, nsINode** aResult) const override;

  virtual nsresult AfterSetAttr(int32_t aNamespaceID, nsAtom* aName,

                                const nsAttrValue* aValue,

                                const nsAttrValue* aOldValue,

                                nsIPrincipal* aSubjectPrincipal,

                                bool aNotify) override;

  virtual nsresult BindToTree(nsIDocument* aDocument, nsIContent* aParent,

                              nsIContent* aBindingParent) override;

  virtual void UnbindFromTree(bool aDeep, bool aNullParent) override;

  virtual EventStates IntrinsicState() const override;

  NS_IMETHOD Notify(imgIRequest *aRequest, int32_t aType, const nsIntRect* aData) override;

  void MaybeLoadSVGImage();

  // WebIDL

  already_AddRefed<SVGAnimatedString> Href();

  already_AddRefed<DOMSVGAnimatedPreserveAspectRatio> PreserveAspectRatio();

private:

  // Invalidate users of the filter containing this element.

  void Invalidate();

  nsresult LoadSVGImage(bool aForce, bool aNotify);

protected:

  virtual bool ProducesSRGB() override { return true; }

  virtual SVGAnimatedPreserveAspectRatio *GetPreserveAspectRatio() override;

  virtual StringAttributesInfo GetStringInfo() override;

  // Override for nsImageLoadingContent.

  nsIContent* AsContent() override { return this; }

  enum { RESULT, HREF, XLINK_HREF };

  nsSVGString mStringAttributes[3];

  static StringInfo sStringInfo[3];

  SVGAnimatedPreserveAspectRatio mPreserveAspectRatio;

};

} // namespace dom

} // namespace mozilla

#endif