зеркало из https://github.com/mozilla/gecko-dev.git
104 строки
3.7 KiB
C++
104 строки
3.7 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 NSSVGFOREIGNOBJECTFRAME_H__
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#define NSSVGFOREIGNOBJECTFRAME_H__
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#include "mozilla/Attributes.h"
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#include "mozilla/PresShellForwards.h"
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#include "nsAutoPtr.h"
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#include "nsContainerFrame.h"
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#include "nsSVGDisplayableFrame.h"
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#include "nsRegion.h"
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#include "nsSVGUtils.h"
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class gfxContext;
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class nsSVGForeignObjectFrame final : public nsContainerFrame,
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public nsSVGDisplayableFrame {
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friend nsContainerFrame* NS_NewSVGForeignObjectFrame(
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mozilla::PresShell* aPresShell, ComputedStyle* aStyle);
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protected:
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explicit nsSVGForeignObjectFrame(ComputedStyle* aStyle,
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nsPresContext* aPresContext);
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public:
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NS_DECL_QUERYFRAME
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NS_DECL_FRAMEARENA_HELPERS(nsSVGForeignObjectFrame)
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// nsIFrame:
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virtual void Init(nsIContent* aContent, nsContainerFrame* aParent,
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nsIFrame* aPrevInFlow) override;
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virtual void DestroyFrom(nsIFrame* aDestructRoot,
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PostDestroyData& aPostDestroyData) 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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virtual nsContainerFrame* GetContentInsertionFrame() override {
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return PrincipalChildList().FirstChild()->GetContentInsertionFrame();
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}
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virtual void Reflow(nsPresContext* aPresContext, ReflowOutput& aDesiredSize,
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const ReflowInput& aReflowInput,
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nsReflowStatus& aStatus) override;
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virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsDisplayListSet& aLists) override;
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virtual bool IsFrameOfType(uint32_t aFlags) const override {
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if (aFlags & eSupportsContainLayoutAndPaint) {
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return false;
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}
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return nsContainerFrame::IsFrameOfType(
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aFlags & ~(nsIFrame::eSVG | nsIFrame::eSVGForeignObject));
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}
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virtual bool IsSVGTransformed(Matrix* aOwnTransform,
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Matrix* aFromParentTransform) const override;
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#ifdef DEBUG_FRAME_DUMP
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virtual nsresult GetFrameName(nsAString& aResult) const override {
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return MakeFrameName(NS_LITERAL_STRING("SVGForeignObject"), aResult);
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}
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#endif
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// nsSVGDisplayableFrame interface:
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virtual void PaintSVG(gfxContext& aContext, const gfxMatrix& aTransform,
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imgDrawingParams& aImgParams,
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const nsIntRect* aDirtyRect = nullptr) override;
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virtual nsIFrame* GetFrameForPoint(const gfxPoint& aPoint) override;
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virtual void ReflowSVG() override;
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virtual void NotifySVGChanged(uint32_t aFlags) override;
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virtual SVGBBox GetBBoxContribution(const Matrix& aToBBoxUserspace,
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uint32_t aFlags) override;
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virtual bool IsDisplayContainer() override { return true; }
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gfxMatrix GetCanvasTM();
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nsRect GetInvalidRegion();
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// Return our ::-moz-svg-foreign-content anonymous box.
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void AppendDirectlyOwnedAnonBoxes(nsTArray<OwnedAnonBox>& aResult) override;
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virtual void DidSetComputedStyle(ComputedStyle* aOldComputedStyle) override;
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protected:
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// implementation helpers:
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void DoReflow();
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void RequestReflow(mozilla::IntrinsicDirty aType);
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// If width or height is less than or equal to zero we must disable rendering
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bool IsDisabled() const { return mRect.width <= 0 || mRect.height <= 0; }
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nsAutoPtr<gfxMatrix> mCanvasTM;
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bool mInReflow;
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};
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#endif
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