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
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/. */
#ifndef mozilla_dom_HTMLTrackElement_h
#define mozilla_dom_HTMLTrackElement_h
#include "mozilla/Attributes.h"
#include "mozilla/dom/HTMLMediaElement.h"
#include "mozilla/dom/TextTrack.h"
#include "nsCycleCollectionParticipant.h"
#include "nsGenericHTMLElement.h"
#include "nsGkAtoms.h"
class nsIContent;
namespace mozilla::dom {
class WebVTTListener;
class WindowDestroyObserver;
enum class TextTrackReadyState : uint8_t;
class HTMLTrackElement final : public nsGenericHTMLElement {
public:
explicit HTMLTrackElement(
already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
// nsISupports
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(HTMLTrackElement,
nsGenericHTMLElement)
// HTMLTrackElement WebIDL
void GetKind(DOMString& aKind) const;
void SetKind(const nsAString& aKind, ErrorResult& aError) {
SetHTMLAttr(nsGkAtoms::kind, aKind, aError);
}
void GetSrc(DOMString& aSrc) const { GetHTMLURIAttr(nsGkAtoms::src, aSrc); }
void SetSrc(const nsAString& aSrc, ErrorResult& aError);
void GetSrclang(DOMString& aSrclang) const {
GetHTMLAttr(nsGkAtoms::srclang, aSrclang);
}
void GetSrclang(nsAString& aSrclang) const {
GetHTMLAttr(nsGkAtoms::srclang, aSrclang);
}
void SetSrclang(const nsAString& aSrclang, ErrorResult& aError) {
SetHTMLAttr(nsGkAtoms::srclang, aSrclang, aError);
}
void GetLabel(DOMString& aLabel) const {
GetHTMLAttr(nsGkAtoms::label, aLabel);
}
void GetLabel(nsAString& aLabel) const {
GetHTMLAttr(nsGkAtoms::label, aLabel);
}
void SetLabel(const nsAString& aLabel, ErrorResult& aError) {
SetHTMLAttr(nsGkAtoms::label, aLabel, aError);
}
bool Default() const { return GetBoolAttr(nsGkAtoms::_default); }
void SetDefault(bool aDefault, ErrorResult& aError) {
SetHTMLBoolAttr(nsGkAtoms::_default, aDefault, aError);
}
TextTrackReadyState ReadyState() const;
uint16_t ReadyStateForBindings() const {
return static_cast<uint16_t>(ReadyState());
}
void SetReadyState(TextTrackReadyState);
TextTrack* GetTrack();
virtual nsresult Clone(dom::NodeInfo*, nsINode** aResult) const override;
// Override ParseAttribute() to convert kind strings to enum values.
virtual bool ParseAttribute(int32_t aNamespaceID, nsAtom* aAttribute,
const nsAString& aValue,
nsIPrincipal* aMaybeScriptedPrincipal,
nsAttrValue& aResult) override;
// Override BindToTree() so that we can trigger a load when we become
// the child of a media element.
virtual nsresult BindToTree(BindContext&, nsINode& aParent) override;
virtual void UnbindFromTree(UnbindContext&) override;
virtual void AfterSetAttr(int32_t aNameSpaceID, nsAtom* aName,
const nsAttrValue* aValue,
const nsAttrValue* aOldValue,
nsIPrincipal* aMaybeScriptedPrincipal,
bool aNotify) override;
void DispatchTrackRunnable(const nsString& aEventName);
void DispatchTrustedEvent(const nsAString& aName);
void DispatchTestEvent(const nsAString& aName);
void CancelChannelAndListener();
// Only load resource for the non-disabled track with media parent.
void MaybeDispatchLoadResource();
protected:
virtual ~HTMLTrackElement();
virtual JSObject* WrapNode(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
void OnChannelRedirect(nsIChannel* aChannel, nsIChannel* aNewChannel,
uint32_t aFlags);
friend class TextTrackCue;
friend class WebVTTListener;
RefPtr<TextTrack> mTrack;
nsCOMPtr<nsIChannel> mChannel;
RefPtr<HTMLMediaElement> mMediaParent;
RefPtr<WebVTTListener> mListener;
void CreateTextTrack();
private:
// Open a new channel to the HTMLTrackElement's src attribute and call
// mListener's LoadResource().
void LoadResource(RefPtr<WebVTTListener>&& aWebVTTListener);
bool mLoadResourceDispatched;
void MaybeClearAllCues();
RefPtr<WindowDestroyObserver> mWindowDestroyObserver;
};
} // namespace mozilla::dom
#endif // mozilla_dom_HTMLTrackElement_h
|
