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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 http://mozilla.org/MPL/2.0/. */
#ifndef LAYOUT_SVG_SVGIMAGEFRAME_H_
#define LAYOUT_SVG_SVGIMAGEFRAME_H_
// Keep in (case-insensitive) order:
#include "mozilla/gfx/2D.h"
#include "mozilla/DisplaySVGItem.h"
#include "mozilla/ISVGDisplayableFrame.h"
#include "gfxContext.h"
#include "gfxPlatform.h"
#include "imgIContainer.h"
#include "nsContainerFrame.h"
#include "imgINotificationObserver.h"
#include "nsIReflowCallback.h"
namespace mozilla {
class DisplaySVGImage;
class PresShell;
} // namespace mozilla
nsIFrame* NS_NewSVGImageFrame(mozilla::PresShell* aPresShell,
mozilla::ComputedStyle* aStyle);
namespace mozilla {
class SVGImageFrame final : public nsIFrame,
public ISVGDisplayableFrame,
public nsIReflowCallback {
friend nsIFrame* ::NS_NewSVGImageFrame(mozilla::PresShell* aPresShell,
ComputedStyle* aStyle);
friend class DisplaySVGImage;
bool CreateWebRenderCommands(wr::DisplayListBuilder& aBuilder,
wr::IpcResourceUpdateQueue& aResources,
const layers::StackingContextHelper& aSc,
layers::RenderRootStateManager* aManager,
nsDisplayListBuilder* aDisplayListBuilder,
DisplaySVGImage* aItem, bool aDryRun);
private:
explicit SVGImageFrame(ComputedStyle* aStyle, nsPresContext* aPresContext)
: nsIFrame(aStyle, aPresContext, kClassID),
mReflowCallbackPosted(false),
mForceSyncDecoding(false) {
AddStateBits(NS_FRAME_SVG_LAYOUT | NS_FRAME_MAY_BE_TRANSFORMED);
EnableVisibilityTracking();
}
virtual ~SVGImageFrame();
public:
NS_DECL_QUERYFRAME
NS_DECL_FRAMEARENA_HELPERS(SVGImageFrame)
// ISVGDisplayableFrame interface:
void PaintSVG(gfxContext& aContext, const gfxMatrix& aTransform,
imgDrawingParams& aImgParams) override;
nsIFrame* GetFrameForPoint(const gfxPoint& aPoint) override;
void ReflowSVG() override;
void NotifySVGChanged(uint32_t aFlags) override;
SVGBBox GetBBoxContribution(const Matrix& aToBBoxUserspace,
uint32_t aFlags) override;
bool IsDisplayContainer() override { return false; }
// nsIFrame interface:
void BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsDisplayListSet& aLists) override;
bool IsFrameOfType(uint32_t aFlags) const override {
if (aFlags & eSupportsContainLayoutAndPaint) {
return false;
}
return nsIFrame::IsFrameOfType(aFlags & ~nsIFrame::eSVG);
}
nsresult AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
int32_t aModType) override;
void OnVisibilityChange(
Visibility aNewVisibility,
const Maybe<OnNonvisible>& aNonvisibleAction = Nothing()) override;
void Init(nsIContent* aContent, nsContainerFrame* aParent,
nsIFrame* aPrevInFlow) override;
void Destroy(DestroyContext&) override;
void DidSetComputedStyle(ComputedStyle* aOldStyle) final;
bool IsSVGTransformed(Matrix* aOwnTransforms = nullptr,
Matrix* aFromParentTransforms = nullptr) const override;
bool GetIntrinsicImageDimensions(gfx::Size& aSize,
AspectRatio& aAspectRatio) const;
#ifdef DEBUG_FRAME_DUMP
nsresult GetFrameName(nsAString& aResult) const override {
return MakeFrameName(u"SVGImage"_ns, aResult);
}
#endif
// nsIReflowCallback
bool ReflowFinished() override;
void ReflowCallbackCanceled() override;
/// Always sync decode our image when painting if @aForce is true.
void SetForceSyncDecoding(bool aForce) { mForceSyncDecoding = aForce; }
// SVGImageFrame methods:
bool IsInvisible() const;
private:
bool IgnoreHitTest() const;
gfx::Matrix GetRasterImageTransform(int32_t aNativeWidth,
int32_t aNativeHeight);
gfx::Matrix GetVectorImageTransform();
bool TransformContextForPainting(gfxContext* aGfxContext,
const gfxMatrix& aTransform);
nsCOMPtr<imgINotificationObserver> mListener;
nsCOMPtr<imgIContainer> mImageContainer;
bool mReflowCallbackPosted;
bool mForceSyncDecoding;
friend class SVGImageListener;
};
//----------------------------------------------------------------------
// Display list item:
class DisplaySVGImage final : public DisplaySVGItem {
public:
DisplaySVGImage(nsDisplayListBuilder* aBuilder, SVGImageFrame* aFrame)
: DisplaySVGItem(aBuilder, aFrame) {
MOZ_COUNT_CTOR(DisplaySVGImage);
}
MOZ_COUNTED_DTOR_OVERRIDE(DisplaySVGImage)
NS_DISPLAY_DECL_NAME("DisplaySVGImage", TYPE_SVG_IMAGE)
// Whether this part of the SVG should be natively handled by webrender,
// potentially becoming an "active layer" inside a blob image.
bool ShouldBeActive(mozilla::wr::DisplayListBuilder& aBuilder,
mozilla::wr::IpcResourceUpdateQueue& aResources,
const mozilla::layers::StackingContextHelper& aSc,
mozilla::layers::RenderRootStateManager* aManager,
nsDisplayListBuilder* aDisplayListBuilder) {
auto* frame = static_cast<SVGImageFrame*>(mFrame);
return frame->CreateWebRenderCommands(aBuilder, aResources, aSc, aManager,
aDisplayListBuilder, this,
/*aDryRun=*/true);
}
bool CreateWebRenderCommands(
mozilla::wr::DisplayListBuilder& aBuilder,
mozilla::wr::IpcResourceUpdateQueue& aResources,
const mozilla::layers::StackingContextHelper& aSc,
mozilla::layers::RenderRootStateManager* aManager,
nsDisplayListBuilder* aDisplayListBuilder) override {
auto* frame = static_cast<SVGImageFrame*>(mFrame);
bool result = frame->CreateWebRenderCommands(aBuilder, aResources, aSc,
aManager, aDisplayListBuilder,
this, /*aDryRun=*/false);
MOZ_ASSERT(result, "ShouldBeActive inconsistent with CreateWRCommands?");
return result;
}
bool IsInvisible() const override {
auto* frame = static_cast<SVGImageFrame*>(mFrame);
return frame->IsInvisible();
}
};
} // namespace mozilla
#endif // LAYOUT_SVG_SVGIMAGEFRAME_H_
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