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#ifndef SourceBufferList_h
32#define SourceBufferList_h
33
34#if ENABLE(MEDIA_SOURCE)
35
36#include "EventTarget.h"
37#include "GenericEventQueue.h"
38#include "ScriptWrappable.h"
39#include <wtf/RefCounted.h>
40#include <wtf/Vector.h>
41
42namespace WebCore {
43
44class SourceBuffer;
45
46class SourceBufferList final : public RefCounted<SourceBufferList>, public ScriptWrappable, public EventTargetWithInlineData {
47public:
48    static PassRefPtr<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() : 0; }
56
57    void add(PassRefPtr<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    virtual EventTargetInterface eventTargetInterface() const override { return SourceBufferListEventTargetInterfaceType; }
68    virtual ScriptExecutionContext* scriptExecutionContext() const override { return m_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    virtual void refEventTarget() override { ref(); }
79    virtual void derefEventTarget() override { deref(); }
80
81    ScriptExecutionContext* m_scriptExecutionContext;
82    GenericEventQueue m_asyncEventQueue;
83
84    Vector<RefPtr<SourceBuffer>> m_list;
85};
86
87} // namespace WebCore
88
89#endif
90
91#endif
92