1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* rendering object for the HTML <video> element */
#ifndef nsVideoFrame_h___
#define nsVideoFrame_h___
#include "mozilla/Attributes.h"
#include "nsContainerFrame.h"
#include "nsIAnonymousContentCreator.h"
#include "nsTArrayForwardDeclare.h"
#include "FrameLayerBuilder.h"
namespace mozilla {
namespace layers {
class Layer;
class LayerManager;
} // namespace layers
} // namespace mozilla
class nsAString;
class nsPresContext;
class nsDisplayItem;
class nsVideoFrame : public nsContainerFrame
, public nsIAnonymousContentCreator
{
public:
template <typename T> using Maybe = mozilla::Maybe<T>;
using Nothing = mozilla::Nothing;
using Visibility = mozilla::Visibility;
typedef mozilla::layers::Layer Layer;
typedef mozilla::layers::LayerManager LayerManager;
typedef mozilla::ContainerLayerParameters ContainerLayerParameters;
explicit nsVideoFrame(nsStyleContext* aContext);
NS_DECL_QUERYFRAME
NS_DECL_QUERYFRAME_TARGET(nsVideoFrame)
NS_DECL_FRAMEARENA_HELPERS
virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsDisplayListSet& aLists) override;
virtual nsresult AttributeChanged(int32_t aNameSpaceID,
nsIAtom* aAttribute,
int32_t aModType) override;
void OnVisibilityChange(Visibility aNewVisibility,
Maybe<OnNonvisible> aNonvisibleAction = Nothing()) override;
/* get the size of the video's display */
nsSize GetVideoIntrinsicSize(nsRenderingContext *aRenderingContext);
virtual mozilla::AspectRatio GetIntrinsicRatio() override;
virtual mozilla::LogicalSize
ComputeSize(nsRenderingContext *aRenderingContext,
mozilla::WritingMode aWritingMode,
const mozilla::LogicalSize& aCBSize,
nscoord aAvailableISize,
const mozilla::LogicalSize& aMargin,
const mozilla::LogicalSize& aBorder,
const mozilla::LogicalSize& aPadding,
ComputeSizeFlags aFlags) override;
virtual nscoord GetMinISize(nsRenderingContext *aRenderingContext) override;
virtual nscoord GetPrefISize(nsRenderingContext *aRenderingContext) override;
virtual void DestroyFrom(nsIFrame* aDestructRoot) override;
virtual bool IsLeaf() const override;
virtual void Reflow(nsPresContext* aPresContext,
ReflowOutput& aDesiredSize,
const ReflowInput& aReflowInput,
nsReflowStatus& aStatus) override;
#ifdef ACCESSIBILITY
virtual mozilla::a11y::AccType AccessibleType() override;
#endif
virtual nsIAtom* GetType() const override;
virtual bool IsFrameOfType(uint32_t aFlags) const override
{
return nsSplittableFrame::IsFrameOfType(aFlags &
~(nsIFrame::eReplaced | nsIFrame::eReplacedSizing));
}
virtual nsresult CreateAnonymousContent(nsTArray<ContentInfo>& aElements) override;
virtual void AppendAnonymousContentTo(nsTArray<nsIContent*>& aElements,
uint32_t aFilters) override;
nsIContent* GetPosterImage() { return mPosterImage; }
// Returns true if we should display the poster. Note that once we show
// a video frame, the poster will never be displayed again.
bool ShouldDisplayPoster();
nsIContent *GetCaptionOverlay() { return mCaptionDiv; }
nsIContent *GetVideoControls() { return mVideoControls; }
#ifdef DEBUG_FRAME_DUMP
virtual nsresult GetFrameName(nsAString& aResult) const override;
#endif
already_AddRefed<Layer> BuildLayer(nsDisplayListBuilder* aBuilder,
LayerManager* aManager,
nsDisplayItem* aItem,
const ContainerLayerParameters& aContainerParameters);
protected:
// Returns true if we're rendering for a video element. We still create
// nsVideoFrame to render controls for an audio element.
bool HasVideoElement();
// Returns true if there is video data to render. Can return false
// when we're the frame for an audio element, or we've created a video
// element for a media which is audio-only.
bool HasVideoData();
// Sets the mPosterImage's src attribute to be the video's poster attribute,
// if we're the frame for a video element. Only call on frames for video
// elements, not for frames for audio elements.
void UpdatePosterSource(bool aNotify);
virtual ~nsVideoFrame();
nsMargin mBorderPadding;
// Anonymous child which is bound via XBL to the video controls.
nsCOMPtr<nsIContent> mVideoControls;
// Anonymous child which is the image element of the poster frame.
nsCOMPtr<nsIContent> mPosterImage;
// Anonymous child which is the text track caption display div.
nsCOMPtr<nsIContent> mCaptionDiv;
};
#endif /* nsVideoFrame_h___ */
|
