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
6 * are met:
7 * 1.  Redistributions of source code must retain the above copyright
8 *     notice, this list of conditions and the following disclaimer.
9 * 2.  Redistributions in binary form must reproduce the above copyright
10 *     notice, this list of conditions and the following disclaimer in the
11 *     documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 */
24
25#include "config.h"
26
27#include "public/platform/WebMediaStreamTrack.h"
28
29#include "platform/mediastream/MediaStreamComponent.h"
30#include "platform/mediastream/MediaStreamSource.h"
31#include "public/platform/WebAudioSourceProvider.h"
32#include "public/platform/WebMediaStream.h"
33#include "public/platform/WebMediaStreamSource.h"
34#include "public/platform/WebString.h"
35
36namespace blink {
37
38namespace {
39
40class ExtraDataContainer : public MediaStreamComponent::ExtraData {
41public:
42    explicit ExtraDataContainer(PassOwnPtr<WebMediaStreamTrack::ExtraData> extraData) : m_extraData(extraData) { }
43
44    WebMediaStreamTrack::ExtraData* extraData() { return m_extraData.get(); }
45
46private:
47    OwnPtr<WebMediaStreamTrack::ExtraData> m_extraData;
48};
49
50} // namespace
51
52WebMediaStreamTrack WebMediaStreamTrack::ExtraData::owner()
53{
54    ASSERT(m_owner);
55    return WebMediaStreamTrack(m_owner);
56}
57
58void WebMediaStreamTrack::ExtraData::setOwner(MediaStreamComponent* owner)
59{
60    ASSERT(!m_owner);
61    m_owner = owner;
62}
63
64WebMediaStreamTrack::WebMediaStreamTrack(PassRefPtr<MediaStreamComponent> mediaStreamComponent)
65    : m_private(mediaStreamComponent)
66{
67}
68
69WebMediaStreamTrack::WebMediaStreamTrack(MediaStreamComponent* mediaStreamComponent)
70    : m_private(mediaStreamComponent)
71{
72}
73
74WebMediaStreamTrack& WebMediaStreamTrack::operator=(MediaStreamComponent* mediaStreamComponent)
75{
76    m_private = mediaStreamComponent;
77    return *this;
78}
79
80void WebMediaStreamTrack::initialize(const WebMediaStreamSource& source)
81{
82    m_private = MediaStreamComponent::create(source);
83}
84
85void WebMediaStreamTrack::initialize(const WebString& id, const WebMediaStreamSource& source)
86{
87    m_private = MediaStreamComponent::create(id, source);
88}
89
90void WebMediaStreamTrack::reset()
91{
92    m_private.reset();
93}
94
95WebMediaStreamTrack::operator PassRefPtr<MediaStreamComponent>() const
96{
97    return m_private.get();
98}
99
100WebMediaStreamTrack::operator MediaStreamComponent*() const
101{
102    return m_private.get();
103}
104
105bool WebMediaStreamTrack::isEnabled() const
106{
107    ASSERT(!m_private.isNull());
108    return m_private->enabled();
109}
110
111WebString WebMediaStreamTrack::id() const
112{
113    ASSERT(!m_private.isNull());
114    return m_private->id();
115}
116
117WebMediaStreamSource WebMediaStreamTrack::source() const
118{
119    ASSERT(!m_private.isNull());
120    return WebMediaStreamSource(m_private->source());
121}
122
123WebMediaStreamTrack::ExtraData* WebMediaStreamTrack::extraData() const
124{
125    MediaStreamComponent::ExtraData* data = m_private->extraData();
126    if (!data)
127        return 0;
128    return static_cast<ExtraDataContainer*>(data)->extraData();
129}
130
131void WebMediaStreamTrack::setExtraData(ExtraData* extraData)
132{
133    ASSERT(!m_private.isNull());
134
135    if (extraData)
136        extraData->setOwner(m_private.get());
137
138    m_private->setExtraData(adoptPtr(new ExtraDataContainer(adoptPtr(extraData))));
139}
140
141void WebMediaStreamTrack::setSourceProvider(WebAudioSourceProvider* provider)
142{
143#if ENABLE(WEB_AUDIO)
144    ASSERT(!m_private.isNull());
145    m_private->setSourceProvider(provider);
146#endif // ENABLE(WEB_AUDIO)
147}
148
149void WebMediaStreamTrack::assign(const WebMediaStreamTrack& other)
150{
151    m_private = other.m_private;
152}
153
154} // namespace blink
155