1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/layout/generic/nsHTMLCanvasFrame.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,101 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +/* rendering object for the HTML <canvas> element */
1.10 +
1.11 +#ifndef nsHTMLCanvasFrame_h___
1.12 +#define nsHTMLCanvasFrame_h___
1.13 +
1.14 +#include "mozilla/Attributes.h"
1.15 +#include "nsContainerFrame.h"
1.16 +#include "FrameLayerBuilder.h"
1.17 +
1.18 +namespace mozilla {
1.19 +namespace layers {
1.20 +class Layer;
1.21 +class LayerManager;
1.22 +}
1.23 +}
1.24 +
1.25 +class nsPresContext;
1.26 +class nsDisplayItem;
1.27 +class nsAString;
1.28 +
1.29 +nsIFrame* NS_NewHTMLCanvasFrame (nsIPresShell* aPresShell, nsStyleContext* aContext);
1.30 +
1.31 +class nsHTMLCanvasFrame : public nsContainerFrame
1.32 +{
1.33 +public:
1.34 + typedef mozilla::layers::Layer Layer;
1.35 + typedef mozilla::layers::LayerManager LayerManager;
1.36 + typedef mozilla::ContainerLayerParameters ContainerLayerParameters;
1.37 +
1.38 + NS_DECL_QUERYFRAME_TARGET(nsHTMLCanvasFrame)
1.39 + NS_DECL_QUERYFRAME
1.40 + NS_DECL_FRAMEARENA_HELPERS
1.41 +
1.42 + nsHTMLCanvasFrame(nsStyleContext* aContext) : nsContainerFrame(aContext) {}
1.43 +
1.44 + virtual void Init(nsIContent* aContent,
1.45 + nsIFrame* aParent,
1.46 + nsIFrame* aPrevInFlow) MOZ_OVERRIDE;
1.47 +
1.48 + virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
1.49 + const nsRect& aDirtyRect,
1.50 + const nsDisplayListSet& aLists) MOZ_OVERRIDE;
1.51 +
1.52 + already_AddRefed<Layer> BuildLayer(nsDisplayListBuilder* aBuilder,
1.53 + LayerManager* aManager,
1.54 + nsDisplayItem* aItem,
1.55 + const ContainerLayerParameters& aContainerParameters);
1.56 +
1.57 + /* get the size of the canvas's image */
1.58 + nsIntSize GetCanvasSize();
1.59 +
1.60 + virtual nscoord GetMinWidth(nsRenderingContext *aRenderingContext) MOZ_OVERRIDE;
1.61 + virtual nscoord GetPrefWidth(nsRenderingContext *aRenderingContext) MOZ_OVERRIDE;
1.62 + virtual nsSize GetIntrinsicRatio() MOZ_OVERRIDE;
1.63 +
1.64 + virtual nsSize ComputeSize(nsRenderingContext *aRenderingContext,
1.65 + nsSize aCBSize, nscoord aAvailableWidth,
1.66 + nsSize aMargin, nsSize aBorder, nsSize aPadding,
1.67 + uint32_t aFlags) MOZ_OVERRIDE;
1.68 +
1.69 + virtual nsresult Reflow(nsPresContext* aPresContext,
1.70 + nsHTMLReflowMetrics& aDesiredSize,
1.71 + const nsHTMLReflowState& aReflowState,
1.72 + nsReflowStatus& aStatus) MOZ_OVERRIDE;
1.73 +
1.74 + nsRect GetInnerArea() const;
1.75 +
1.76 +#ifdef ACCESSIBILITY
1.77 + virtual mozilla::a11y::AccType AccessibleType() MOZ_OVERRIDE;
1.78 +#endif
1.79 +
1.80 + virtual nsIAtom* GetType() const MOZ_OVERRIDE;
1.81 +
1.82 + virtual bool IsFrameOfType(uint32_t aFlags) const MOZ_OVERRIDE
1.83 + {
1.84 + return nsSplittableFrame::IsFrameOfType(aFlags & ~(nsIFrame::eReplaced));
1.85 + }
1.86 +
1.87 +#ifdef DEBUG_FRAME_DUMP
1.88 + virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE;
1.89 +#endif
1.90 +
1.91 + // Inserted child content gets its frames parented by our child block
1.92 + virtual nsIFrame* GetContentInsertionFrame() MOZ_OVERRIDE {
1.93 + return GetFirstPrincipalChild()->GetContentInsertionFrame();
1.94 + }
1.95 +
1.96 +protected:
1.97 + virtual ~nsHTMLCanvasFrame();
1.98 +
1.99 + nscoord GetContinuationOffset(nscoord* aWidth = 0) const;
1.100 +
1.101 + nsMargin mBorderPadding;
1.102 +};
1.103 +
1.104 +#endif /* nsHTMLCanvasFrame_h___ */
