forked from mirrors/gecko-dev
5730ee0ca5
Extend the per-frame-class bit we have to devirtualize IsLeaf to also devirtualize IsFrameOfType. That is, move this data to FrameClasses.py. This was done by going through all the frame classes, trying to preserve behavior. The only quirky thing is that I had to add two more trivial frame classes, `nsAudioFrame` for audio elements, and `nsFloatingFirstLetterFrame`. That's because these frame classes were returning different answers at runtime, but they do this only on conditions that trigger frame reconstruction (floating, and being an audio element, respectively). Differential Revision: https://phabricator.services.mozilla.com/D194703
93 lines
3.2 KiB
C++
93 lines
3.2 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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/* rendering object for the HTML <canvas> element */
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#ifndef nsHTMLCanvasFrame_h___
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#define nsHTMLCanvasFrame_h___
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#include "mozilla/Attributes.h"
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#include "nsContainerFrame.h"
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#include "nsStringFwd.h"
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namespace mozilla {
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class PresShell;
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namespace layers {
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class CanvasRenderer;
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class Layer;
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class LayerManager;
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class WebRenderCanvasData;
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} // namespace layers
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} // namespace mozilla
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class nsPresContext;
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nsIFrame* NS_NewHTMLCanvasFrame(mozilla::PresShell* aPresShell,
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mozilla::ComputedStyle* aStyle);
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class nsHTMLCanvasFrame final : public nsContainerFrame {
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public:
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typedef mozilla::layers::CanvasRenderer CanvasRenderer;
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typedef mozilla::layers::LayerManager LayerManager;
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typedef mozilla::layers::WebRenderCanvasData WebRenderCanvasData;
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NS_DECL_QUERYFRAME
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NS_DECL_FRAMEARENA_HELPERS(nsHTMLCanvasFrame)
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nsHTMLCanvasFrame(ComputedStyle* aStyle, nsPresContext* aPresContext)
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: nsContainerFrame(aStyle, aPresContext, kClassID) {}
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virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsDisplayListSet& aLists) override;
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void Destroy(DestroyContext&) override;
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bool UpdateWebRenderCanvasData(nsDisplayListBuilder* aBuilder,
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WebRenderCanvasData* aCanvasData);
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/* get the size of the canvas's image */
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nsIntSize GetCanvasSize() const;
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virtual nscoord GetMinISize(gfxContext* aRenderingContext) override;
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virtual nscoord GetPrefISize(gfxContext* aRenderingContext) override;
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virtual mozilla::IntrinsicSize GetIntrinsicSize() override;
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mozilla::AspectRatio GetIntrinsicRatio() const override;
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void UnionChildOverflow(mozilla::OverflowAreas& aOverflowAreas) override;
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SizeComputationResult ComputeSize(
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gfxContext* aRenderingContext, mozilla::WritingMode aWM,
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const mozilla::LogicalSize& aCBSize, nscoord aAvailableISize,
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const mozilla::LogicalSize& aMargin,
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const mozilla::LogicalSize& aBorderPadding,
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const mozilla::StyleSizeOverrides& aSizeOverrides,
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mozilla::ComputeSizeFlags aFlags) override;
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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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#ifdef ACCESSIBILITY
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virtual mozilla::a11y::AccType AccessibleType() override;
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#endif
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#ifdef DEBUG_FRAME_DUMP
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virtual nsresult GetFrameName(nsAString& aResult) const override;
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#endif
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// Inserted child content gets its frames parented by our child block
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virtual nsContainerFrame* GetContentInsertionFrame() override {
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return PrincipalChildList().FirstChild()->GetContentInsertionFrame();
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}
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// Return the ::-moz-html-canvas-content anonymous box.
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void AppendDirectlyOwnedAnonBoxes(nsTArray<OwnedAnonBox>& aResult) override;
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protected:
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virtual ~nsHTMLCanvasFrame();
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};
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#endif /* nsHTMLCanvasFrame_h___ */
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