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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/ISVGDisplayableFrame.h"
#include "mozilla/PresShellForwards.h"
#include "mozilla/UniquePtr.h"
#include "nsContainerFrame.h"
#include "nsRegion.h"
class gfxContext;
nsContainerFrame* NS_NewSVGForeignObjectFrame(mozilla::PresShell* aPresShell,
mozilla::ComputedStyle* aStyle);
namespace mozilla {
class SVGForeignObjectFrame final : public nsContainerFrame,
public ISVGDisplayableFrame {
friend nsContainerFrame* ::NS_NewSVGForeignObjectFrame(
mozilla::PresShell* aPresShell, ComputedStyle* aStyle);
explicit SVGForeignObjectFrame(ComputedStyle* aStyle,
nsPresContext* aPresContext);
// nsIFrame:
virtual void Init(nsIContent* aContent, nsContainerFrame* aParent,
nsIFrame* aPrevInFlow) override;
virtual void DestroyFrom(nsIFrame* aDestructRoot,
PostDestroyData& aPostDestroyData) override;
virtual nsresult AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
int32_t aModType) override;
virtual nsContainerFrame* GetContentInsertionFrame() override {
return PrincipalChildList().FirstChild()->GetContentInsertionFrame();
virtual void Reflow(nsPresContext* aPresContext, ReflowOutput& aDesiredSize,
const ReflowInput& aReflowInput,
nsReflowStatus& aStatus) override;
virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsDisplayListSet& aLists) override;
virtual bool IsFrameOfType(uint32_t aFlags) const override {
if (aFlags & eSupportsContainLayoutAndPaint) {
return false;
return nsContainerFrame::IsFrameOfType(aFlags & ~nsIFrame::eSVG);
virtual bool IsSVGTransformed(Matrix* aOwnTransform,
Matrix* aFromParentTransform) const override;
virtual nsresult GetFrameName(nsAString& aResult) const override {
return MakeFrameName(u"SVGForeignObject"_ns, aResult);
// ISVGDisplayableFrame interface:
virtual void PaintSVG(gfxContext& aContext, const gfxMatrix& aTransform,
imgDrawingParams& aImgParams,
const nsIntRect* aDirtyRect = nullptr) override;
virtual nsIFrame* GetFrameForPoint(const gfxPoint& aPoint) override;
virtual void ReflowSVG() override;
virtual void NotifySVGChanged(uint32_t aFlags) override;
virtual SVGBBox GetBBoxContribution(const Matrix& aToBBoxUserspace,
uint32_t aFlags) override;
virtual bool IsDisplayContainer() override { return true; }
gfxMatrix GetCanvasTM();
nsRect GetInvalidRegion();
// Return our ::-moz-svg-foreign-content anonymous box.
void AppendDirectlyOwnedAnonBoxes(nsTArray<OwnedAnonBox>& aResult) override;
virtual void DidSetComputedStyle(ComputedStyle* aOldComputedStyle) override;
// implementation helpers:
void DoReflow();
void RequestReflow(IntrinsicDirty aType);
// If width or height is less than or equal to zero we must disable rendering
bool IsDisabled() const { return mRect.width <= 0 || mRect.height <= 0; }
UniquePtr<gfxMatrix> mCanvasTM;
bool mInReflow;
} // namespace mozilla