mirror of
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131 lines
4.6 KiB
C++
131 lines
4.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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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 <video> element */
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#ifndef nsVideoFrame_h___
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#define nsVideoFrame_h___
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#include "mozilla/Attributes.h"
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#include "nsContainerFrame.h"
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#include "nsIAnonymousContentCreator.h"
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#include "nsTArrayForwardDeclare.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 nsAString;
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class nsPresContext;
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class nsDisplayItem;
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class nsVideoFrame : public nsContainerFrame, public nsIAnonymousContentCreator
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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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nsVideoFrame(nsStyleContext* aContext);
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NS_DECL_QUERYFRAME
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NS_DECL_QUERYFRAME_TARGET(nsVideoFrame)
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NS_DECL_FRAMEARENA_HELPERS
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virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsRect& aDirtyRect,
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const nsDisplayListSet& aLists) MOZ_OVERRIDE;
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virtual nsresult AttributeChanged(int32_t aNameSpaceID,
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nsIAtom* aAttribute,
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int32_t aModType) MOZ_OVERRIDE;
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/* get the size of the video's display */
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nsSize GetVideoIntrinsicSize(nsRenderingContext *aRenderingContext);
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virtual nsSize GetIntrinsicRatio() MOZ_OVERRIDE;
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virtual nsSize ComputeSize(nsRenderingContext *aRenderingContext,
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nsSize aCBSize, nscoord aAvailableWidth,
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nsSize aMargin, nsSize aBorder, nsSize aPadding,
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uint32_t aFlags) MOZ_OVERRIDE;
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virtual nscoord GetMinISize(nsRenderingContext *aRenderingContext) MOZ_OVERRIDE;
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virtual nscoord GetPrefISize(nsRenderingContext *aRenderingContext) MOZ_OVERRIDE;
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virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE;
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virtual bool IsLeaf() const MOZ_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) MOZ_OVERRIDE;
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#ifdef ACCESSIBILITY
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virtual mozilla::a11y::AccType AccessibleType() MOZ_OVERRIDE;
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#endif
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virtual nsIAtom* GetType() const MOZ_OVERRIDE;
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virtual bool IsFrameOfType(uint32_t aFlags) const MOZ_OVERRIDE
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{
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return nsSplittableFrame::IsFrameOfType(aFlags & ~(nsIFrame::eReplaced));
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}
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virtual nsresult CreateAnonymousContent(nsTArray<ContentInfo>& aElements) MOZ_OVERRIDE;
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virtual void AppendAnonymousContentTo(nsBaseContentList& aElements,
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uint32_t aFilters) MOZ_OVERRIDE;
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nsIContent* GetPosterImage() { return mPosterImage; }
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// Returns true if we should display the poster. Note that once we show
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// a video frame, the poster will never be displayed again.
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bool ShouldDisplayPoster();
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nsIContent *GetCaptionOverlay() { return mCaptionDiv; }
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#ifdef DEBUG_FRAME_DUMP
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virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE;
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#endif
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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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protected:
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// Returns true if we're rendering for a video element. We still create
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// nsVideoFrame to render controls for an audio element.
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bool HasVideoElement();
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// Returns true if there is video data to render. Can return false
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// when we're the frame for an audio element, or we've created a video
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// element for a media which is audio-only.
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bool HasVideoData();
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// Sets the mPosterImage's src attribute to be the video's poster attribute,
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// if we're the frame for a video element. Only call on frames for video
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// elements, not for frames for audio elements.
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void UpdatePosterSource(bool aNotify);
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virtual ~nsVideoFrame();
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nsMargin mBorderPadding;
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// Anonymous child which is bound via XBL to the video controls.
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nsCOMPtr<nsIContent> mVideoControls;
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// Anonymous child which is the image element of the poster frame.
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nsCOMPtr<nsIContent> mPosterImage;
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// Anonymous child which is the text track caption display div.
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nsCOMPtr<nsIContent> mCaptionDiv;
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};
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#endif /* nsVideoFrame_h___ */
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