зеркало из https://github.com/mozilla/gecko-dev.git
87 строки
2.6 KiB
C++
87 строки
2.6 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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 nsAtom;
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class nsIContent;
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class nsIFrame;
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struct nsRect;
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namespace mozilla {
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class SVGAnimatedLength;
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class PresShell;
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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 final : public nsSVGContainerFrame {
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friend nsIFrame* NS_NewSVGFilterFrame(mozilla::PresShell* aPresShell,
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ComputedStyle* aStyle);
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protected:
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explicit nsSVGFilterFrame(ComputedStyle* aStyle, nsPresContext* aPresContext)
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: nsSVGContainerFrame(aStyle, aPresContext, kClassID),
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mLoopFlag(false),
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mNoHRefURI(false) {
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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(nsSVGFilterFrame)
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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, nsAtom* aAttribute,
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int32_t aModType) override;
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#ifdef DEBUG
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virtual void Init(nsIContent* aContent, nsContainerFrame* aParent,
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nsIFrame* aPrevInFlow) override;
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#endif
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private:
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friend class nsSVGFilterInstance;
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/**
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* Parses this frame's href and - if it references another filter - returns
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* it. It also makes this frame a rendering observer of the specified ID.
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*/
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nsSVGFilterFrame* GetReferencedFilter();
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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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return GetEnumValue(aIndex, mContent);
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}
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const mozilla::SVGAnimatedLength* GetLengthValue(uint32_t aIndex,
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nsIContent* aDefault);
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const mozilla::SVGAnimatedLength* GetLengthValue(uint32_t aIndex) {
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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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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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