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33bb32f549
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convert MOZ_OVERRIDE override
convert MOZ_FINAL final
110 lines
3.6 KiB
C++
110 lines
3.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 "FrameLayerBuilder.h"
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namespace mozilla {
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namespace layers {
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class Layer;
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class LayerManager;
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}
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}
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class nsPresContext;
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class nsDisplayItem;
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class nsAString;
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nsIFrame* NS_NewHTMLCanvasFrame (nsIPresShell* aPresShell, nsStyleContext* aContext);
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class nsHTMLCanvasFrame : public nsContainerFrame
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{
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public:
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typedef mozilla::layers::Layer Layer;
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typedef mozilla::layers::LayerManager LayerManager;
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typedef mozilla::ContainerLayerParameters ContainerLayerParameters;
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NS_DECL_QUERYFRAME_TARGET(nsHTMLCanvasFrame)
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NS_DECL_QUERYFRAME
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NS_DECL_FRAMEARENA_HELPERS
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explicit nsHTMLCanvasFrame(nsStyleContext* aContext)
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: nsContainerFrame(aContext)
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, mBorderPadding(GetWritingMode()) {}
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virtual void Init(nsIContent* aContent,
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nsContainerFrame* aParent,
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nsIFrame* aPrevInFlow) override;
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virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsRect& aDirtyRect,
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const nsDisplayListSet& aLists) override;
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already_AddRefed<Layer> BuildLayer(nsDisplayListBuilder* aBuilder,
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LayerManager* aManager,
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nsDisplayItem* aItem,
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const ContainerLayerParameters& aContainerParameters);
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/* get the size of the canvas's image */
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nsIntSize GetCanvasSize();
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virtual nscoord GetMinISize(nsRenderingContext *aRenderingContext) override;
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virtual nscoord GetPrefISize(nsRenderingContext *aRenderingContext) override;
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virtual mozilla::IntrinsicSize GetIntrinsicSize() override;
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virtual nsSize GetIntrinsicRatio() override;
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virtual mozilla::LogicalSize
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ComputeSize(nsRenderingContext *aRenderingContext,
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mozilla::WritingMode aWritingMode,
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const mozilla::LogicalSize& aCBSize,
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nscoord aAvailableISize,
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const mozilla::LogicalSize& aMargin,
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const mozilla::LogicalSize& aBorder,
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const mozilla::LogicalSize& aPadding,
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ComputeSizeFlags aFlags) override;
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virtual void Reflow(nsPresContext* aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus) override;
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nsRect GetInnerArea() const;
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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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virtual nsIAtom* GetType() const override;
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virtual bool IsFrameOfType(uint32_t aFlags) const override
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{
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return nsSplittableFrame::IsFrameOfType(aFlags & ~(nsIFrame::eReplaced));
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}
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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 GetFirstPrincipalChild()->GetContentInsertionFrame();
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}
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protected:
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virtual ~nsHTMLCanvasFrame();
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nscoord GetContinuationOffset(nscoord* aWidth = 0) const;
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mozilla::LogicalMargin mBorderPadding;
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};
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#endif /* nsHTMLCanvasFrame_h___ */
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