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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "chromeos/dbus/bluetooth_input_client.h" | |
| 6 | |
| 7 #include <map> | |
| 8 #include <utility> | |
| 9 | |
| 10 #include "base/bind.h" | |
| 11 #include "base/logging.h" | |
| 12 #include "base/stl_util.h" | |
| 13 #include "chromeos/dbus/bluetooth_adapter_client.h" | |
| 14 #include "chromeos/dbus/bluetooth_property.h" | |
| 15 #include "dbus/bus.h" | |
| 16 #include "dbus/message.h" | |
| 17 #include "dbus/object_path.h" | |
| 18 #include "dbus/object_proxy.h" | |
| 19 #include "third_party/cros_system_api/dbus/service_constants.h" | |
| 20 | |
| 21 namespace { | |
| 22 | |
| 23 // The |Connect| DBus call needs a longer timeout than the default in order to | |
| 24 // give BlueZ enough time to return the timeout error response. | |
| 25 // See crosbug.com/37607 | |
| 26 const int kConnectTimeoutMs = 50 * 1000; | |
| 27 | |
| 28 } // namespace | |
| 29 | |
| 30 namespace chromeos { | |
| 31 | |
| 32 const char BluetoothInputClient::kNoResponseError[] = | |
| 33 "org.chromium.Error.NoResponse"; | |
| 34 | |
| 35 BluetoothInputClient::Properties::Properties( | |
| 36 dbus::ObjectProxy* object_proxy, | |
| 37 const PropertyChangedCallback& callback) | |
| 38 : BluetoothPropertySet(object_proxy, | |
| 39 bluetooth_input::kBluetoothInputInterface, | |
| 40 callback) { | |
| 41 RegisterProperty(bluetooth_input::kConnectedProperty, &connected); | |
| 42 } | |
| 43 | |
| 44 BluetoothInputClient::Properties::~Properties() { | |
| 45 } | |
| 46 | |
| 47 | |
| 48 // The BluetoothInputClient implementation used in production. | |
| 49 class BluetoothInputClientImpl: public BluetoothInputClient, | |
| 50 private BluetoothAdapterClient::Observer { | |
| 51 public: | |
| 52 BluetoothInputClientImpl(dbus::Bus* bus, | |
| 53 BluetoothAdapterClient* adapter_client) | |
| 54 : bus_(bus), | |
| 55 weak_ptr_factory_(this) { | |
| 56 DCHECK(adapter_client); | |
| 57 adapter_client->AddObserver(this); | |
| 58 } | |
| 59 | |
| 60 virtual ~BluetoothInputClientImpl() { | |
| 61 // Clean up Properties structures | |
| 62 for (ObjectMap::iterator iter = object_map_.begin(); | |
| 63 iter != object_map_.end(); ++iter) { | |
| 64 Object object = iter->second; | |
| 65 Properties* properties = object.second; | |
| 66 delete properties; | |
| 67 } | |
| 68 } | |
| 69 | |
| 70 // BluetoothInputClient override. | |
| 71 virtual void AddObserver(BluetoothInputClient::Observer* observer) | |
| 72 OVERRIDE { | |
| 73 DCHECK(observer); | |
| 74 observers_.AddObserver(observer); | |
| 75 } | |
| 76 | |
| 77 // BluetoothInputClient override. | |
| 78 virtual void RemoveObserver(BluetoothInputClient::Observer* observer) | |
| 79 OVERRIDE { | |
| 80 DCHECK(observer); | |
| 81 observers_.RemoveObserver(observer); | |
| 82 } | |
| 83 | |
| 84 // BluetoothInputClient override. | |
| 85 virtual Properties* GetProperties(const dbus::ObjectPath& object_path) | |
| 86 OVERRIDE { | |
| 87 return GetObject(object_path).second; | |
| 88 } | |
| 89 | |
| 90 // BluetoothInputClient override. | |
| 91 virtual void Connect(const dbus::ObjectPath& object_path, | |
| 92 const ConnectCallback& callback, | |
| 93 const ConnectErrorCallback& error_callback) OVERRIDE { | |
| 94 dbus::MethodCall method_call( | |
| 95 bluetooth_input::kBluetoothInputInterface, | |
| 96 bluetooth_input::kConnect); | |
| 97 | |
| 98 dbus::ObjectProxy* object_proxy = GetObjectProxy(object_path); | |
| 99 | |
| 100 object_proxy->CallMethodWithErrorCallback( | |
| 101 &method_call, | |
| 102 kConnectTimeoutMs, | |
| 103 base::Bind(&BluetoothInputClientImpl::OnConnect, | |
| 104 weak_ptr_factory_.GetWeakPtr(), object_path, | |
| 105 callback), | |
| 106 base::Bind(&BluetoothInputClientImpl::OnConnectError, | |
| 107 weak_ptr_factory_.GetWeakPtr(), object_path, | |
| 108 error_callback)); | |
| 109 } | |
| 110 | |
| 111 // BluetoothInputClient override. | |
| 112 virtual void Disconnect(const dbus::ObjectPath& object_path, | |
| 113 const InputCallback& callback) OVERRIDE { | |
| 114 dbus::MethodCall method_call( | |
| 115 bluetooth_input::kBluetoothInputInterface, | |
| 116 bluetooth_input::kDisconnect); | |
| 117 | |
| 118 dbus::ObjectProxy* object_proxy = GetObjectProxy(object_path); | |
| 119 | |
| 120 object_proxy->CallMethod( | |
| 121 &method_call, | |
| 122 dbus::ObjectProxy::TIMEOUT_USE_DEFAULT, | |
| 123 base::Bind(&BluetoothInputClientImpl::OnDisconnect, | |
| 124 weak_ptr_factory_.GetWeakPtr(), object_path, callback)); | |
| 125 } | |
| 126 | |
| 127 private: | |
| 128 // We maintain a collection of dbus object proxies and properties structures | |
| 129 // for each input device. | |
| 130 typedef std::pair<dbus::ObjectProxy*, Properties*> Object; | |
| 131 typedef std::map<const dbus::ObjectPath, Object> ObjectMap; | |
| 132 ObjectMap object_map_; | |
| 133 | |
| 134 // BluetoothAdapterClient::Observer override. | |
| 135 virtual void DeviceCreated(const dbus::ObjectPath& adapter_path, | |
| 136 const dbus::ObjectPath& object_path) OVERRIDE { | |
| 137 } | |
| 138 | |
| 139 // BluetoothAdapterClient::Observer override. | |
| 140 virtual void DeviceRemoved(const dbus::ObjectPath& adapter_path, | |
| 141 const dbus::ObjectPath& object_path) OVERRIDE { | |
| 142 RemoveObject(object_path); | |
| 143 } | |
| 144 | |
| 145 // Ensures that we have an object proxy and properties structure for | |
| 146 // an input device with object path |object_path|, creating it if not and | |
| 147 // storing it in our |object_map_| map. | |
| 148 Object GetObject(const dbus::ObjectPath& object_path) { | |
| 149 ObjectMap::iterator iter = object_map_.find(object_path); | |
| 150 if (iter != object_map_.end()) | |
| 151 return iter->second; | |
| 152 | |
| 153 // Create the object proxy. | |
| 154 DCHECK(bus_); | |
| 155 dbus::ObjectProxy* object_proxy = bus_->GetObjectProxy( | |
| 156 bluetooth_input::kBluetoothInputServiceName, object_path); | |
| 157 | |
| 158 // Create the properties structure. | |
| 159 Properties* properties = new Properties( | |
| 160 object_proxy, | |
| 161 base::Bind(&BluetoothInputClientImpl::OnPropertyChanged, | |
| 162 weak_ptr_factory_.GetWeakPtr(), object_path)); | |
| 163 | |
| 164 properties->ConnectSignals(); | |
| 165 properties->GetAll(); | |
| 166 | |
| 167 Object object = std::make_pair(object_proxy, properties); | |
| 168 object_map_[object_path] = object; | |
| 169 return object; | |
| 170 } | |
| 171 | |
| 172 // Removes the dbus object proxy and properties for the input device with | |
| 173 // dbus object path |object_path| from our |object_map_| map. | |
| 174 void RemoveObject(const dbus::ObjectPath& object_path) { | |
| 175 ObjectMap::iterator iter = object_map_.find(object_path); | |
| 176 if (iter != object_map_.end()) { | |
| 177 // Clean up the Properties structure. | |
| 178 Object object = iter->second; | |
| 179 Properties* properties = object.second; | |
| 180 delete properties; | |
| 181 | |
| 182 object_map_.erase(iter); | |
| 183 } | |
| 184 } | |
| 185 | |
| 186 // Returns a pointer to the object proxy for |object_path|, creating | |
| 187 // it if necessary. | |
| 188 dbus::ObjectProxy* GetObjectProxy(const dbus::ObjectPath& object_path) { | |
| 189 return GetObject(object_path).first; | |
| 190 } | |
| 191 | |
| 192 // Called by BluetoothPropertySet when a property value is changed, | |
| 193 // either by result of a signal or response to a GetAll() or Get() | |
| 194 // call. Informs observers. | |
| 195 void OnPropertyChanged(const dbus::ObjectPath& object_path, | |
| 196 const std::string& property_name) { | |
| 197 FOR_EACH_OBSERVER(BluetoothInputClient::Observer, observers_, | |
| 198 InputPropertyChanged(object_path, property_name)); | |
| 199 } | |
| 200 | |
| 201 // Called when a response for Connect() is received. | |
| 202 void OnConnect(const dbus::ObjectPath& object_path, | |
| 203 const ConnectCallback& callback, | |
| 204 dbus::Response* response) { | |
| 205 DCHECK(response); | |
| 206 callback.Run(object_path); | |
| 207 } | |
| 208 | |
| 209 // Called when an error for Connect() is received. | |
| 210 void OnConnectError(const dbus::ObjectPath& object_path, | |
| 211 const ConnectErrorCallback& error_callback, | |
| 212 dbus::ErrorResponse* response) { | |
| 213 // Error response has optional error message argument. | |
| 214 std::string error_name; | |
| 215 std::string error_message; | |
| 216 if (response) { | |
| 217 dbus::MessageReader reader(response); | |
| 218 error_name = response->GetErrorName(); | |
| 219 reader.PopString(&error_message); | |
| 220 } else { | |
| 221 error_name = kNoResponseError; | |
| 222 error_message = ""; | |
| 223 } | |
| 224 error_callback.Run(object_path, error_name, error_message); | |
| 225 } | |
| 226 | |
| 227 // Called when a response for Disconnect() is received. | |
| 228 void OnDisconnect(const dbus::ObjectPath& object_path, | |
| 229 const InputCallback& callback, | |
| 230 dbus::Response* response) { | |
| 231 LOG_IF(WARNING, !response) << object_path.value() | |
| 232 << ": OnDisconnect: failed."; | |
| 233 callback.Run(object_path, response); | |
| 234 } | |
| 235 | |
| 236 dbus::Bus* bus_; | |
| 237 | |
| 238 // List of observers interested in event notifications from us. | |
| 239 ObserverList<BluetoothInputClient::Observer> observers_; | |
| 240 | |
| 241 // Weak pointer factory for generating 'this' pointers that might live longer | |
| 242 // than we do. | |
| 243 // Note: This should remain the last member so it'll be destroyed and | |
| 244 // invalidate its weak pointers before any other members are destroyed. | |
| 245 base::WeakPtrFactory<BluetoothInputClientImpl> weak_ptr_factory_; | |
| 246 | |
| 247 DISALLOW_COPY_AND_ASSIGN(BluetoothInputClientImpl); | |
| 248 }; | |
| 249 | |
| 250 // The BluetoothInputClient implementation used on Linux desktop, which does | |
| 251 // nothing. | |
| 252 class BluetoothInputClientStubImpl : public BluetoothInputClient { | |
| 253 public: | |
| 254 // BluetoothInputClient override. | |
| 255 virtual void AddObserver(Observer* observer) OVERRIDE { | |
| 256 } | |
| 257 | |
| 258 // BluetoothInputClient override. | |
| 259 virtual void RemoveObserver(Observer* observer) OVERRIDE { | |
| 260 } | |
| 261 | |
| 262 // BluetoothInputClient override. | |
| 263 virtual Properties* GetProperties(const dbus::ObjectPath& object_path) | |
| 264 OVERRIDE { | |
| 265 VLOG(1) << "GetProperties: " << object_path.value(); | |
| 266 return NULL; | |
| 267 } | |
| 268 | |
| 269 // BluetoothInputClient override. | |
| 270 virtual void Connect(const dbus::ObjectPath& object_path, | |
| 271 const ConnectCallback& callback, | |
| 272 const ConnectErrorCallback& error_callback) OVERRIDE { | |
| 273 VLOG(1) << "Connect: " << object_path.value(); | |
| 274 error_callback.Run(object_path, "", ""); | |
| 275 } | |
| 276 | |
| 277 // BluetoothInputClient override. | |
| 278 virtual void Disconnect(const dbus::ObjectPath& object_path, | |
| 279 const InputCallback& callback) OVERRIDE { | |
| 280 VLOG(1) << "Disconnect: " << object_path.value(); | |
| 281 callback.Run(object_path, false); | |
| 282 } | |
| 283 }; | |
| 284 | |
| 285 BluetoothInputClient::BluetoothInputClient() { | |
| 286 } | |
| 287 | |
| 288 BluetoothInputClient::~BluetoothInputClient() { | |
| 289 } | |
| 290 | |
| 291 BluetoothInputClient* BluetoothInputClient::Create( | |
| 292 DBusClientImplementationType type, | |
| 293 dbus::Bus* bus, | |
| 294 BluetoothAdapterClient* adapter_client) { | |
| 295 if (type == REAL_DBUS_CLIENT_IMPLEMENTATION) | |
| 296 return new BluetoothInputClientImpl(bus, adapter_client); | |
| 297 DCHECK_EQ(STUB_DBUS_CLIENT_IMPLEMENTATION, type); | |
| 298 return new BluetoothInputClientStubImpl(); | |
| 299 } | |
| 300 | |
| 301 } // namespace chromeos | |
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Chromium Code Reviews
Issue 15020009:
Bluetooth: remove legacy backend (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src