1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/layout/generic/nsVideoFrame.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,132 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim:set ts=2 sw=2 sts=2 et cindent: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +/* rendering object for the HTML <video> element */
1.11 +
1.12 +#ifndef nsVideoFrame_h___
1.13 +#define nsVideoFrame_h___
1.14 +
1.15 +#include "mozilla/Attributes.h"
1.16 +#include "nsContainerFrame.h"
1.17 +#include "nsIAnonymousContentCreator.h"
1.18 +#include "nsTArrayForwardDeclare.h"
1.19 +#include "FrameLayerBuilder.h"
1.20 +
1.21 +namespace mozilla {
1.22 +namespace layers {
1.23 +class Layer;
1.24 +class LayerManager;
1.25 +}
1.26 +}
1.27 +
1.28 +class nsAString;
1.29 +class nsPresContext;
1.30 +class nsDisplayItem;
1.31 +
1.32 +nsIFrame* NS_NewVideoFrame (nsIPresShell* aPresShell, nsStyleContext* aContext);
1.33 +
1.34 +class nsVideoFrame : public nsContainerFrame, public nsIAnonymousContentCreator
1.35 +{
1.36 +public:
1.37 + typedef mozilla::layers::Layer Layer;
1.38 + typedef mozilla::layers::LayerManager LayerManager;
1.39 + typedef mozilla::ContainerLayerParameters ContainerLayerParameters;
1.40 +
1.41 + nsVideoFrame(nsStyleContext* aContext);
1.42 +
1.43 + NS_DECL_QUERYFRAME
1.44 + NS_DECL_QUERYFRAME_TARGET(nsVideoFrame)
1.45 + NS_DECL_FRAMEARENA_HELPERS
1.46 +
1.47 + virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
1.48 + const nsRect& aDirtyRect,
1.49 + const nsDisplayListSet& aLists) MOZ_OVERRIDE;
1.50 +
1.51 + virtual nsresult AttributeChanged(int32_t aNameSpaceID,
1.52 + nsIAtom* aAttribute,
1.53 + int32_t aModType) MOZ_OVERRIDE;
1.54 +
1.55 + /* get the size of the video's display */
1.56 + nsSize GetVideoIntrinsicSize(nsRenderingContext *aRenderingContext);
1.57 + virtual nsSize GetIntrinsicRatio() MOZ_OVERRIDE;
1.58 + virtual nsSize ComputeSize(nsRenderingContext *aRenderingContext,
1.59 + nsSize aCBSize, nscoord aAvailableWidth,
1.60 + nsSize aMargin, nsSize aBorder, nsSize aPadding,
1.61 + uint32_t aFlags) MOZ_OVERRIDE;
1.62 + virtual nscoord GetMinWidth(nsRenderingContext *aRenderingContext) MOZ_OVERRIDE;
1.63 + virtual nscoord GetPrefWidth(nsRenderingContext *aRenderingContext) MOZ_OVERRIDE;
1.64 + virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE;
1.65 + virtual bool IsLeaf() const MOZ_OVERRIDE;
1.66 +
1.67 + virtual nsresult Reflow(nsPresContext* aPresContext,
1.68 + nsHTMLReflowMetrics& aDesiredSize,
1.69 + const nsHTMLReflowState& aReflowState,
1.70 + nsReflowStatus& aStatus) MOZ_OVERRIDE;
1.71 +
1.72 +#ifdef ACCESSIBILITY
1.73 + virtual mozilla::a11y::AccType AccessibleType() MOZ_OVERRIDE;
1.74 +#endif
1.75 +
1.76 + virtual nsIAtom* GetType() const MOZ_OVERRIDE;
1.77 +
1.78 + virtual bool IsFrameOfType(uint32_t aFlags) const MOZ_OVERRIDE
1.79 + {
1.80 + return nsSplittableFrame::IsFrameOfType(aFlags & ~(nsIFrame::eReplaced));
1.81 + }
1.82 +
1.83 + virtual nsresult CreateAnonymousContent(nsTArray<ContentInfo>& aElements) MOZ_OVERRIDE;
1.84 + virtual void AppendAnonymousContentTo(nsBaseContentList& aElements,
1.85 + uint32_t aFilters) MOZ_OVERRIDE;
1.86 +
1.87 + nsIContent* GetPosterImage() { return mPosterImage; }
1.88 +
1.89 + // Returns true if we should display the poster. Note that once we show
1.90 + // a video frame, the poster will never be displayed again.
1.91 + bool ShouldDisplayPoster();
1.92 +
1.93 + nsIContent *GetCaptionOverlay() { return mCaptionDiv; }
1.94 +
1.95 +#ifdef DEBUG_FRAME_DUMP
1.96 + virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE;
1.97 +#endif
1.98 +
1.99 + already_AddRefed<Layer> BuildLayer(nsDisplayListBuilder* aBuilder,
1.100 + LayerManager* aManager,
1.101 + nsDisplayItem* aItem,
1.102 + const ContainerLayerParameters& aContainerParameters);
1.103 +
1.104 +protected:
1.105 +
1.106 + // Returns true if we're rendering for a video element. We still create
1.107 + // nsVideoFrame to render controls for an audio element.
1.108 + bool HasVideoElement();
1.109 +
1.110 + // Returns true if there is video data to render. Can return false
1.111 + // when we're the frame for an audio element, or we've created a video
1.112 + // element for a media which is audio-only.
1.113 + bool HasVideoData();
1.114 +
1.115 + // Sets the mPosterImage's src attribute to be the video's poster attribute,
1.116 + // if we're the frame for a video element. Only call on frames for video
1.117 + // elements, not for frames for audio elements.
1.118 + void UpdatePosterSource(bool aNotify);
1.119 +
1.120 + virtual ~nsVideoFrame();
1.121 +
1.122 + nsMargin mBorderPadding;
1.123 +
1.124 + // Anonymous child which is bound via XBL to the video controls.
1.125 + nsCOMPtr<nsIContent> mVideoControls;
1.126 +
1.127 + // Anonymous child which is the image element of the poster frame.
1.128 + nsCOMPtr<nsIContent> mPosterImage;
1.129 +
1.130 + // Anonymous child which is the text track caption display div.
1.131 + nsCOMPtr<nsIContent> mCaptionDiv;
1.132 +
1.133 +};
1.134 +
1.135 +#endif /* nsVideoFrame_h___ */
