99 lines
2.8 KiB
C++
99 lines
2.8 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef __NS_SVGFILTERFRAME_H__
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#define __NS_SVGFILTERFRAME_H__
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#include "mozilla/Attributes.h"
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#include "nsFrame.h"
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#include "nsQueryFrame.h"
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#include "nsSVGContainerFrame.h"
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#include "nsSVGUtils.h"
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class nsIAtom;
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class nsIContent;
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class nsIFrame;
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class nsIPresShell;
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class nsStyleContext;
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class nsSVGLength2;
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struct nsRect;
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namespace mozilla {
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namespace dom {
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class SVGFilterElement;
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} // namespace dom
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} // namespace mozilla
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class nsSVGFilterFrame : public nsSVGContainerFrame
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{
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friend nsIFrame*
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NS_NewSVGFilterFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
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protected:
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explicit nsSVGFilterFrame(nsStyleContext* aContext)
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: nsSVGContainerFrame(aContext)
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, mLoopFlag(false)
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, mNoHRefURI(false)
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{
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AddStateBits(NS_FRAME_IS_NONDISPLAY);
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}
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public:
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NS_DECL_FRAMEARENA_HELPERS
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// nsIFrame methods:
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virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsDisplayListSet& aLists) override {}
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virtual nsresult AttributeChanged(int32_t aNameSpaceID,
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nsIAtom* aAttribute,
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int32_t aModType) override;
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#ifdef DEBUG
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virtual void Init(nsIContent* aContent,
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nsContainerFrame* aParent,
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nsIFrame* aPrevInFlow) override;
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#endif
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/**
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* Get the "type" of the frame
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*
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* @see nsGkAtoms::svgFilterFrame
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*/
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virtual nsIAtom* GetType() const override;
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private:
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// Parse our xlink:href and set up our nsSVGPaintingProperty if we
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// reference another filter and we don't have a property. Return
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// the referenced filter's frame if available, null otherwise.
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class AutoFilterReferencer;
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friend class nsSVGFilterInstance;
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nsSVGFilterFrame* GetReferencedFilter();
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nsSVGFilterFrame* GetReferencedFilterIfNotInUse();
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// Accessors to lookup filter attributes
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uint16_t GetEnumValue(uint32_t aIndex, nsIContent *aDefault);
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uint16_t GetEnumValue(uint32_t aIndex)
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{
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return GetEnumValue(aIndex, mContent);
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}
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const nsSVGLength2 *GetLengthValue(uint32_t aIndex, nsIContent *aDefault);
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const nsSVGLength2 *GetLengthValue(uint32_t aIndex)
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{
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return GetLengthValue(aIndex, mContent);
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}
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const mozilla::dom::SVGFilterElement *GetFilterContent(nsIContent *aDefault);
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const mozilla::dom::SVGFilterElement *GetFilterContent()
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{
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return GetFilterContent(mContent);
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}
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// This flag is used to detect loops in xlink:href processing
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bool mLoopFlag;
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bool mNoHRefURI;
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};
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#endif
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