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
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
|
// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chromeos/dbus/bluetooth_media_client.h"
#include "base/bind.h"
#include "base/logging.h"
#include "base/memory/ref_counted.h"
#include "base/observer_list.h"
#include "dbus/bus.h"
#include "dbus/message.h"
#include "dbus/object_manager.h"
#include "dbus/object_proxy.h"
#include "third_party/cros_system_api/dbus/service_constants.h"
namespace {
// Since there is no property associated with Media objects, an empty callback
// is used.
void DoNothing(const std::string& property_name) {
}
// TODO(mcchou): Add these service constants into dbus/service_constants.h
// later.
const char kBluetoothMediaInterface[] = "org.bluez.Media1";
// Method names supported by Media Interface.
const char kRegisterEndpoint[] = "RegisterEndpoint";
const char kUnregisterEndpoint[] = "UnregisterEndpoint";
// The set of properties which are used to register a media endpoint.
const char kUUIDEndpointProperty[] = "UUID";
const char kCodecEndpointProperty[] = "Codec";
const char kCapabilitiesEndpointProperty[] = "Capabilities";
} // namespace
namespace chromeos {
const char BluetoothMediaClient::kNoResponseError[] =
"org.chromium.Error.NoResponse";
BluetoothMediaClient::EndpointProperties::EndpointProperties() : codec(0x00) {
}
BluetoothMediaClient::EndpointProperties::~EndpointProperties() {
}
class BluetoothMediaClientImpl
: public BluetoothMediaClient, dbus::ObjectManager::Interface {
public:
BluetoothMediaClientImpl()
: object_manager_(nullptr), weak_ptr_factory_(this) {}
~BluetoothMediaClientImpl() override {
object_manager_->UnregisterInterface(kBluetoothMediaInterface);
}
// dbus::ObjectManager::Interface overrides.
dbus::PropertySet* CreateProperties(
dbus::ObjectProxy* object_proxy,
const dbus::ObjectPath& object_path,
const std::string& interface_name) override {
return new dbus::PropertySet(object_proxy, interface_name,
base::Bind(&DoNothing));
}
void ObjectAdded(const dbus::ObjectPath& object_path,
const std::string& interface_name) override {
VLOG(1) << "Remote Media added: " << object_path.value();
FOR_EACH_OBSERVER(BluetoothMediaClient::Observer, observers_,
MediaAdded(object_path));
}
void ObjectRemoved(const dbus::ObjectPath& object_path,
const std::string& interface_name) override {
VLOG(1) << "Remote Media removed: " << object_path.value();
FOR_EACH_OBSERVER(BluetoothMediaClient::Observer, observers_,
MediaRemoved(object_path));
}
// BluetoothMediaClient overrides.
void AddObserver(BluetoothMediaClient::Observer* observer) override {
DCHECK(observer);
observers_.AddObserver(observer);
}
void RemoveObserver(BluetoothMediaClient::Observer* observer) override {
DCHECK(observer);
observers_.RemoveObserver(observer);
}
void RegisterEndpoint(const dbus::ObjectPath& object_path,
const dbus::ObjectPath& endpoint_path,
const EndpointProperties& properties,
const base::Closure& callback,
const ErrorCallback& error_callback) override {
dbus::MethodCall method_call(kBluetoothMediaInterface, kRegisterEndpoint);
dbus::MessageWriter writer(&method_call);
dbus::MessageWriter array_writer(nullptr);
dbus::MessageWriter dict_entry_writer(nullptr);
// Send the path to the endpoint.
writer.AppendObjectPath(endpoint_path);
writer.OpenArray("{sv}", &array_writer);
// Send UUID.
array_writer.OpenDictEntry(&dict_entry_writer);
dict_entry_writer.AppendString(kUUIDEndpointProperty);
dict_entry_writer.AppendVariantOfString(properties.uuid);
array_writer.CloseContainer(&dict_entry_writer);
// Send Codec.
array_writer.OpenDictEntry(&dict_entry_writer);
dict_entry_writer.AppendString(kCodecEndpointProperty);
dict_entry_writer.AppendVariantOfByte(properties.codec);
array_writer.CloseContainer(&dict_entry_writer);
// Send Capabilities.
dbus::MessageWriter variant_writer(nullptr);
array_writer.OpenDictEntry(&dict_entry_writer);
dict_entry_writer.AppendString(kCapabilitiesEndpointProperty);
dict_entry_writer.OpenVariant("ay", &variant_writer);
variant_writer.AppendArrayOfBytes(properties.capabilities.data(),
properties.capabilities.size());
dict_entry_writer.CloseContainer(&variant_writer);
array_writer.CloseContainer(&dict_entry_writer);
writer.CloseContainer(&array_writer);
// Get Object Proxy based on the service name and the service path and call
// RegisterEndpoint medthod.
scoped_refptr<dbus::ObjectProxy> object_proxy(
object_manager_->GetObjectProxy(object_path));
object_proxy->CallMethodWithErrorCallback(
&method_call,
dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
base::Bind(&BluetoothMediaClientImpl::OnSuccess,
weak_ptr_factory_.GetWeakPtr(), callback),
base::Bind(&BluetoothMediaClientImpl::OnError,
weak_ptr_factory_.GetWeakPtr(), error_callback));
}
void UnregisterEndpoint(const dbus::ObjectPath& object_path,
const dbus::ObjectPath& endpoint_path,
const base::Closure& callback,
const ErrorCallback& error_callback) override {
dbus::MethodCall method_call(kBluetoothMediaInterface, kUnregisterEndpoint);
// Send the path to the endpoint.
dbus::MessageWriter writer(&method_call);
writer.AppendObjectPath(endpoint_path);
// Get Object Proxy based on the service name and the service path and call
// RegisterEndpoint medthod.
scoped_refptr<dbus::ObjectProxy> object_proxy(
object_manager_->GetObjectProxy(object_path));
object_proxy->CallMethodWithErrorCallback(
&method_call,
dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
base::Bind(&BluetoothMediaClientImpl::OnSuccess,
weak_ptr_factory_.GetWeakPtr(), callback),
base::Bind(&BluetoothMediaClientImpl::OnError,
weak_ptr_factory_.GetWeakPtr(), error_callback));
}
protected:
void Init(dbus::Bus* bus) override {
DCHECK(bus);
object_manager_ = bus->GetObjectManager(
bluetooth_object_manager::kBluetoothObjectManagerServiceName,
dbus::ObjectPath(
bluetooth_object_manager::kBluetoothObjectManagerServicePath));
object_manager_->RegisterInterface(kBluetoothMediaInterface, this);
}
private:
// Called when a response for successful method call is received.
void OnSuccess(const base::Closure& callback,
dbus::Response* response) {
DCHECK(response);
callback.Run();
}
// Called when a response for a failed method call is received.
void OnError(const ErrorCallback& error_callback,
dbus::ErrorResponse* response) {
// Error response has an optional error message argument.
std::string error_name;
std::string error_message;
if (response) {
dbus::MessageReader reader(response);
error_name = response->GetErrorName();
reader.PopString(&error_message);
} else {
error_name = kNoResponseError;
}
error_callback.Run(error_name, error_message);
}
dbus::ObjectManager* object_manager_;
// List of observers interested in event notifications from us.
ObserverList<BluetoothMediaClient::Observer> observers_;
base::WeakPtrFactory<BluetoothMediaClientImpl> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(BluetoothMediaClientImpl);
};
BluetoothMediaClient::BluetoothMediaClient() {
}
BluetoothMediaClient::~BluetoothMediaClient() {
}
BluetoothMediaClient* BluetoothMediaClient::Create() {
return new BluetoothMediaClientImpl();
}
} // namespace chromeos
|
