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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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_SVGFILTERFRAME_H__
#define __NS_SVGFILTERFRAME_H__
#include "mozilla/Attributes.h"
#include "nsFrame.h"
#include "nsQueryFrame.h"
#include "nsSVGContainerFrame.h"
#include "nsSVGUtils.h"
class nsIAtom;
class nsIContent;
class nsIFrame;
class nsIPresShell;
class nsStyleContext;
class nsSVGLength2;
struct nsRect;
namespace mozilla {
namespace dom {
class SVGFilterElement;
} // namespace dom
} // namespace mozilla
class nsSVGFilterFrame : public nsSVGContainerFrame
{
friend nsIFrame*
NS_NewSVGFilterFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
protected:
explicit nsSVGFilterFrame(nsStyleContext* aContext)
: nsSVGContainerFrame(aContext)
, mLoopFlag(false)
, mNoHRefURI(false)
{
AddStateBits(NS_FRAME_IS_NONDISPLAY);
}
public:
NS_DECL_FRAMEARENA_HELPERS
// nsIFrame methods:
virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsDisplayListSet& aLists) override {}
virtual nsresult AttributeChanged(int32_t aNameSpaceID,
nsIAtom* aAttribute,
int32_t aModType) override;
#ifdef DEBUG
virtual void Init(nsIContent* aContent,
nsContainerFrame* aParent,
nsIFrame* aPrevInFlow) override;
#endif
/**
* Get the "type" of the frame
*
* @see nsGkAtoms::svgFilterFrame
*/
virtual nsIAtom* GetType() const override;
private:
// Parse our xlink:href and set up our nsSVGPaintingProperty if we
// reference another filter and we don't have a property. Return
// the referenced filter's frame if available, null otherwise.
class AutoFilterReferencer;
friend class nsSVGFilterInstance;
nsSVGFilterFrame* GetReferencedFilter();
nsSVGFilterFrame* GetReferencedFilterIfNotInUse();
// Accessors to lookup filter attributes
uint16_t GetEnumValue(uint32_t aIndex, nsIContent *aDefault);
uint16_t GetEnumValue(uint32_t aIndex)
{
return GetEnumValue(aIndex, mContent);
}
const nsSVGLength2 *GetLengthValue(uint32_t aIndex, nsIContent *aDefault);
const nsSVGLength2 *GetLengthValue(uint32_t aIndex)
{
return GetLengthValue(aIndex, mContent);
}
const mozilla::dom::SVGFilterElement *GetFilterContent(nsIContent *aDefault);
const mozilla::dom::SVGFilterElement *GetFilterContent()
{
return GetFilterContent(mContent);
}
// This flag is used to detect loops in xlink:href processing
bool mLoopFlag;
bool mNoHRefURI;
};
#endif
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