1/*
2 * Copyright (C) 2013 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 * * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#pragma once
32
33#if ENABLE(MEDIA_SOURCE)
34
35#include "ActiveDOMObject.h"
36#include "EventTarget.h"
37#include "GenericEventQueue.h"
38#include <wtf/RefCounted.h>
39#include <wtf/Vector.h>
40
41namespace WebCore {
42
43class SourceBuffer;
44
45class SourceBufferList final : public RefCounted<SourceBufferList>, public EventTargetWithInlineData, public ActiveDOMObject {
46 WTF_MAKE_ISO_ALLOCATED(SourceBufferList);
47public:
48 static Ref<SourceBufferList> create(ScriptExecutionContext* context)
49 {
50 return adoptRef(*new SourceBufferList(context));
51 }
52 virtual ~SourceBufferList();
53
54 unsigned long length() const { return m_list.size(); }
55 SourceBuffer* item(unsigned long index) const { return (index < m_list.size()) ? m_list[index].get() : nullptr; }
56
57 void add(Ref<SourceBuffer>&&);
58 void remove(SourceBuffer&);
59 bool contains(SourceBuffer& buffer) { return m_list.find(&buffer) != notFound; }
60 void clear();
61 void swap(Vector<RefPtr<SourceBuffer>>&);
62
63 Vector<RefPtr<SourceBuffer>>::iterator begin() { return m_list.begin(); }
64 Vector<RefPtr<SourceBuffer>>::iterator end() { return m_list.end(); }
65
66 // EventTarget interface
67 EventTargetInterface eventTargetInterface() const final { return SourceBufferListEventTargetInterfaceType; }
68 ScriptExecutionContext* scriptExecutionContext() const final { return ContextDestructionObserver::scriptExecutionContext(); }
69
70 using RefCounted<SourceBufferList>::ref;
71 using RefCounted<SourceBufferList>::deref;
72
73private:
74 explicit SourceBufferList(ScriptExecutionContext*);
75
76 void scheduleEvent(const AtomicString&);
77
78 void refEventTarget() override { ref(); }
79 void derefEventTarget() override { deref(); }
80
81 bool canSuspendForDocumentSuspension() const final;
82 void suspend(ReasonForSuspension) final;
83 void resume() final;
84 void stop() final;
85 const char* activeDOMObjectName() const final;
86
87 GenericEventQueue m_asyncEventQueue;
88
89 Vector<RefPtr<SourceBuffer>> m_list;
90};
91
92} // namespace WebCore
93
94#endif // ENABLE(MEDIA_SOURCE)
95