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/* -*- 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 */
#include "mozilla/Attributes.h"
#include "mozilla/SVGContainerFrame.h"
#include "nsQueryFrame.h"
class nsAtom;
class nsIContent;
class nsIFrame;
struct nsRect;
namespace mozilla {
class SVGAnimatedLength;
class SVGFilterInstance;
class PresShell;
namespace dom {
class SVGFilterElement;
} // namespace dom
} // namespace mozilla
nsIFrame* NS_NewSVGFilterFrame(mozilla::PresShell* aPresShell,
mozilla::ComputedStyle* aStyle);
namespace mozilla {
class SVGFilterFrame final : public SVGContainerFrame {
friend nsIFrame* ::NS_NewSVGFilterFrame(mozilla::PresShell* aPresShell,
ComputedStyle* aStyle);
explicit SVGFilterFrame(ComputedStyle* aStyle, nsPresContext* aPresContext)
: SVGContainerFrame(aStyle, aPresContext, kClassID),
mNoHRefURI(false) {
// nsIFrame methods:
virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsDisplayListSet& aLists) override {}
virtual nsresult AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
int32_t aModType) override;
#ifdef DEBUG
virtual void Init(nsIContent* aContent, nsContainerFrame* aParent,
nsIFrame* aPrevInFlow) override;
friend class SVGFilterInstance;
* Parses this frame's href and - if it references another filter - returns
* it. It also makes this frame a rendering observer of the specified ID.
SVGFilterFrame* GetReferencedFilter();
// Accessors to lookup filter attributes
uint16_t GetEnumValue(uint32_t aIndex, nsIContent* aDefault);
uint16_t GetEnumValue(uint32_t aIndex) {
return GetEnumValue(aIndex, mContent);
const mozilla::SVGAnimatedLength* GetLengthValue(uint32_t aIndex,
nsIContent* aDefault);
const mozilla::SVGAnimatedLength* 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;
} // namespace mozilla