1/*
2 * Copyright (C) 2016 Apple 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. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#include <wtf/text/WTFString.h>
29
30namespace WebCore {
31
32class CaptureDevice {
33public:
34 enum class DeviceType { Unknown, Microphone, Camera, Screen, Window };
35
36 CaptureDevice(const String& persistentId, DeviceType type, const String& label, const String& groupId = emptyString())
37 : m_persistentId(persistentId)
38 , m_type(type)
39 , m_label(label)
40 , m_groupId(groupId)
41 {
42 }
43
44 CaptureDevice() = default;
45
46 const String& persistentId() const { return m_persistentId; }
47
48 const String& label() const { return m_label; }
49
50 const String& groupId() const { return m_groupId; }
51
52 DeviceType type() const { return m_type; }
53
54 bool enabled() const { return m_enabled; }
55 void setEnabled(bool enabled) { m_enabled = enabled; }
56
57 explicit operator bool() const { return m_type != DeviceType::Unknown; }
58
59#if ENABLE(MEDIA_STREAM)
60 template<class Encoder>
61 void encode(Encoder& encoder) const
62 {
63 encoder << m_persistentId;
64 encoder << m_label;
65 encoder << m_groupId;
66 encoder << m_enabled;
67 encoder.encodeEnum(m_type);
68 }
69
70 template <class Decoder>
71 static Optional<CaptureDevice> decode(Decoder& decoder)
72 {
73 Optional<String> persistentId;
74 decoder >> persistentId;
75 if (!persistentId)
76 return WTF::nullopt;
77
78 Optional<String> label;
79 decoder >> label;
80 if (!label)
81 return WTF::nullopt;
82
83 Optional<String> groupId;
84 decoder >> groupId;
85 if (!groupId)
86 return WTF::nullopt;
87
88 Optional<bool> enabled;
89 decoder >> enabled;
90 if (!enabled)
91 return WTF::nullopt;
92
93 Optional<CaptureDevice::DeviceType> type;
94 decoder >> type;
95 if (!type)
96 return WTF::nullopt;
97
98 Optional<CaptureDevice> device = {{ WTFMove(*persistentId), WTFMove(*type), WTFMove(*label), WTFMove(*groupId) }};
99 device->setEnabled(*enabled);
100 return device;
101 }
102#endif
103
104private:
105 String m_persistentId;
106 DeviceType m_type { DeviceType::Unknown };
107 String m_label;
108 String m_groupId;
109 bool m_enabled { false };
110};
111
112} // namespace WebCore
113
114#if ENABLE(MEDIA_STREAM)
115namespace WTF {
116
117template<> struct EnumTraits<WebCore::CaptureDevice::DeviceType> {
118 using values = EnumValues<
119 WebCore::CaptureDevice::DeviceType,
120 WebCore::CaptureDevice::DeviceType::Unknown,
121 WebCore::CaptureDevice::DeviceType::Microphone,
122 WebCore::CaptureDevice::DeviceType::Camera,
123 WebCore::CaptureDevice::DeviceType::Screen,
124 WebCore::CaptureDevice::DeviceType::Window
125 >;
126};
127
128} // namespace WTF
129#endif
130
131