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comparison: layout/generic/nsVideoFrame.h
layout/generic/nsVideoFrame.h
- changeset 0
- 6474c204b198
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* vim:set ts=2 sw=2 sts=2 et cindent: */ | |
| 3 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 /* rendering object for the HTML <video> element */ | |
| 8 | |
| 9 #ifndef nsVideoFrame_h___ | |
| 10 #define nsVideoFrame_h___ | |
| 11 | |
| 12 #include "mozilla/Attributes.h" | |
| 13 #include "nsContainerFrame.h" | |
| 14 #include "nsIAnonymousContentCreator.h" | |
| 15 #include "nsTArrayForwardDeclare.h" | |
| 16 #include "FrameLayerBuilder.h" | |
| 17 | |
| 18 namespace mozilla { | |
| 19 namespace layers { | |
| 20 class Layer; | |
| 21 class LayerManager; | |
| 22 } | |
| 23 } | |
| 24 | |
| 25 class nsAString; | |
| 26 class nsPresContext; | |
| 27 class nsDisplayItem; | |
| 28 | |
| 29 nsIFrame* NS_NewVideoFrame (nsIPresShell* aPresShell, nsStyleContext* aContext); | |
| 30 | |
| 31 class nsVideoFrame : public nsContainerFrame, public nsIAnonymousContentCreator | |
| 32 { | |
| 33 public: | |
| 34 typedef mozilla::layers::Layer Layer; | |
| 35 typedef mozilla::layers::LayerManager LayerManager; | |
| 36 typedef mozilla::ContainerLayerParameters ContainerLayerParameters; | |
| 37 | |
| 38 nsVideoFrame(nsStyleContext* aContext); | |
| 39 | |
| 40 NS_DECL_QUERYFRAME | |
| 41 NS_DECL_QUERYFRAME_TARGET(nsVideoFrame) | |
| 42 NS_DECL_FRAMEARENA_HELPERS | |
| 43 | |
| 44 virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder, | |
| 45 const nsRect& aDirtyRect, | |
| 46 const nsDisplayListSet& aLists) MOZ_OVERRIDE; | |
| 47 | |
| 48 virtual nsresult AttributeChanged(int32_t aNameSpaceID, | |
| 49 nsIAtom* aAttribute, | |
| 50 int32_t aModType) MOZ_OVERRIDE; | |
| 51 | |
| 52 /* get the size of the video's display */ | |
| 53 nsSize GetVideoIntrinsicSize(nsRenderingContext *aRenderingContext); | |
| 54 virtual nsSize GetIntrinsicRatio() MOZ_OVERRIDE; | |
| 55 virtual nsSize ComputeSize(nsRenderingContext *aRenderingContext, | |
| 56 nsSize aCBSize, nscoord aAvailableWidth, | |
| 57 nsSize aMargin, nsSize aBorder, nsSize aPadding, | |
| 58 uint32_t aFlags) MOZ_OVERRIDE; | |
| 59 virtual nscoord GetMinWidth(nsRenderingContext *aRenderingContext) MOZ_OVERRIDE; | |
| 60 virtual nscoord GetPrefWidth(nsRenderingContext *aRenderingContext) MOZ_OVERRIDE; | |
| 61 virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE; | |
| 62 virtual bool IsLeaf() const MOZ_OVERRIDE; | |
| 63 | |
| 64 virtual nsresult Reflow(nsPresContext* aPresContext, | |
| 65 nsHTMLReflowMetrics& aDesiredSize, | |
| 66 const nsHTMLReflowState& aReflowState, | |
| 67 nsReflowStatus& aStatus) MOZ_OVERRIDE; | |
| 68 | |
| 69 #ifdef ACCESSIBILITY | |
| 70 virtual mozilla::a11y::AccType AccessibleType() MOZ_OVERRIDE; | |
| 71 #endif | |
| 72 | |
| 73 virtual nsIAtom* GetType() const MOZ_OVERRIDE; | |
| 74 | |
| 75 virtual bool IsFrameOfType(uint32_t aFlags) const MOZ_OVERRIDE | |
| 76 { | |
| 77 return nsSplittableFrame::IsFrameOfType(aFlags & ~(nsIFrame::eReplaced)); | |
| 78 } | |
| 79 | |
| 80 virtual nsresult CreateAnonymousContent(nsTArray<ContentInfo>& aElements) MOZ_OVERRIDE; | |
| 81 virtual void AppendAnonymousContentTo(nsBaseContentList& aElements, | |
| 82 uint32_t aFilters) MOZ_OVERRIDE; | |
| 83 | |
| 84 nsIContent* GetPosterImage() { return mPosterImage; } | |
| 85 | |
| 86 // Returns true if we should display the poster. Note that once we show | |
| 87 // a video frame, the poster will never be displayed again. | |
| 88 bool ShouldDisplayPoster(); | |
| 89 | |
| 90 nsIContent *GetCaptionOverlay() { return mCaptionDiv; } | |
| 91 | |
| 92 #ifdef DEBUG_FRAME_DUMP | |
| 93 virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE; | |
| 94 #endif | |
| 95 | |
| 96 already_AddRefed<Layer> BuildLayer(nsDisplayListBuilder* aBuilder, | |
| 97 LayerManager* aManager, | |
| 98 nsDisplayItem* aItem, | |
| 99 const ContainerLayerParameters& aContainerParameters); | |
| 100 | |
| 101 protected: | |
| 102 | |
| 103 // Returns true if we're rendering for a video element. We still create | |
| 104 // nsVideoFrame to render controls for an audio element. | |
| 105 bool HasVideoElement(); | |
| 106 | |
| 107 // Returns true if there is video data to render. Can return false | |
| 108 // when we're the frame for an audio element, or we've created a video | |
| 109 // element for a media which is audio-only. | |
| 110 bool HasVideoData(); | |
| 111 | |
| 112 // Sets the mPosterImage's src attribute to be the video's poster attribute, | |
| 113 // if we're the frame for a video element. Only call on frames for video | |
| 114 // elements, not for frames for audio elements. | |
| 115 void UpdatePosterSource(bool aNotify); | |
| 116 | |
| 117 virtual ~nsVideoFrame(); | |
| 118 | |
| 119 nsMargin mBorderPadding; | |
| 120 | |
| 121 // Anonymous child which is bound via XBL to the video controls. | |
| 122 nsCOMPtr<nsIContent> mVideoControls; | |
| 123 | |
| 124 // Anonymous child which is the image element of the poster frame. | |
| 125 nsCOMPtr<nsIContent> mPosterImage; | |
| 126 | |
| 127 // Anonymous child which is the text track caption display div. | |
| 128 nsCOMPtr<nsIContent> mCaptionDiv; | |
| 129 | |
| 130 }; | |
| 131 | |
| 132 #endif /* nsVideoFrame_h___ */ |
