chromeos/dbus/bluetooth_device_client.cc - chromium/src - Git at Google

 // Copyright 2013 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_device_client.h"

 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/stl_util.h"
 #include "chromeos/dbus/fake_bluetooth_device_client.h"
 #include "dbus/bus.h"
 #include "dbus/message.h"
 #include "dbus/object_manager.h"
 #include "dbus/object_path.h"
 #include "dbus/object_proxy.h"
 #include "third_party/cros_system_api/dbus/service_constants.h"

 namespace chromeos {

 const char BluetoothDeviceClient::kNoResponseError[] =
     "org.chromium.Error.NoResponse";
 const char BluetoothDeviceClient::kUnknownDeviceError[] =
     "org.chromium.Error.UnknownDevice";

 BluetoothDeviceClient::Properties::Properties(
     dbus::ObjectProxy* object_proxy,
     const std::string& interface_name,
     const PropertyChangedCallback& callback)
     : dbus::PropertySet(object_proxy, interface_name, callback) {
   RegisterProperty(bluetooth_device::kAddressProperty, &address);
   RegisterProperty(bluetooth_device::kNameProperty, &name);
   RegisterProperty(bluetooth_device::kIconProperty, &icon);
   RegisterProperty(bluetooth_device::kClassProperty, &bluetooth_class);
   RegisterProperty(bluetooth_device::kAppearanceProperty, &appearance);
   RegisterProperty(bluetooth_device::kUUIDsProperty, &uuids);
   RegisterProperty(bluetooth_device::kPairedProperty, &paired);
   RegisterProperty(bluetooth_device::kConnectedProperty, &connected);
   RegisterProperty(bluetooth_device::kTrustedProperty, &trusted);
   RegisterProperty(bluetooth_device::kBlockedProperty, &blocked);
   RegisterProperty(bluetooth_device::kAliasProperty, &alias);
   RegisterProperty(bluetooth_device::kAdapterProperty, &adapter);
   RegisterProperty(bluetooth_device::kLegacyPairingProperty, &legacy_pairing);
   RegisterProperty(bluetooth_device::kModaliasProperty, &modalias);
   RegisterProperty(bluetooth_device::kRSSIProperty, &rssi);
 }

 BluetoothDeviceClient::Properties::~Properties() {
 }


 // The BluetoothDeviceClient implementation used in production.
 class BluetoothDeviceClientImpl
     : public BluetoothDeviceClient,
       public dbus::ObjectManager::Interface {
  public:
   BluetoothDeviceClientImpl() : weak_ptr_factory_(this) {}

   virtual ~BluetoothDeviceClientImpl() {
     object_manager_->UnregisterInterface(
         bluetooth_device::kBluetoothDeviceInterface);
   }

   // BluetoothDeviceClient override.
   virtual void AddObserver(BluetoothDeviceClient::Observer* observer)
       OVERRIDE {
     DCHECK(observer);
     observers_.AddObserver(observer);
   }

   // BluetoothDeviceClient override.
   virtual void RemoveObserver(BluetoothDeviceClient::Observer* observer)
       OVERRIDE {
     DCHECK(observer);
     observers_.RemoveObserver(observer);
   }

   // dbus::ObjectManager::Interface override.
   virtual dbus::PropertySet* CreateProperties(
       dbus::ObjectProxy* object_proxy,
       const dbus::ObjectPath& object_path,
       const std::string& interface_name) OVERRIDE {
     Properties* properties = new Properties(
         object_proxy,
         interface_name,
         base::Bind(&BluetoothDeviceClientImpl::OnPropertyChanged,
                    weak_ptr_factory_.GetWeakPtr(),
                    object_path));
     return static_cast<dbus::PropertySet*>(properties);
   }

   // BluetoothDeviceClient override.
   virtual std::vector<dbus::ObjectPath> GetDevicesForAdapter(
       const dbus::ObjectPath& adapter_path) OVERRIDE {
     std::vector<dbus::ObjectPath> object_paths, device_paths;
     device_paths = object_manager_->GetObjectsWithInterface(
         bluetooth_device::kBluetoothDeviceInterface);
     for (std::vector<dbus::ObjectPath>::iterator iter = device_paths.begin();
          iter != device_paths.end(); ++iter) {
       Properties* properties = GetProperties(*iter);
       if (properties->adapter.value() == adapter_path)
         object_paths.push_back(*iter);
     }
     return object_paths;
   }

   // BluetoothDeviceClient override.
   virtual Properties* GetProperties(const dbus::ObjectPath& object_path)
       OVERRIDE {
     return static_cast<Properties*>(
         object_manager_->GetProperties(
             object_path,
             bluetooth_device::kBluetoothDeviceInterface));
   }

   // BluetoothDeviceClient override.
   virtual void Connect(const dbus::ObjectPath& object_path,
                        const base::Closure& callback,
                        const ErrorCallback& error_callback) OVERRIDE {
     dbus::MethodCall method_call(
         bluetooth_device::kBluetoothDeviceInterface,
         bluetooth_device::kConnect);

     dbus::ObjectProxy* object_proxy =
         object_manager_->GetObjectProxy(object_path);
     if (!object_proxy) {
       error_callback.Run(kUnknownDeviceError, "");
       return;
     }

     // Connect may take an arbitrary length of time, so use no timeout.
     object_proxy->CallMethodWithErrorCallback(
         &method_call,
         dbus::ObjectProxy::TIMEOUT_INFINITE,
         base::Bind(&BluetoothDeviceClientImpl::OnSuccess,
                    weak_ptr_factory_.GetWeakPtr(), callback),
         base::Bind(&BluetoothDeviceClientImpl::OnError,
                    weak_ptr_factory_.GetWeakPtr(), error_callback));
   }

   // BluetoothDeviceClient override.
   virtual void Disconnect(const dbus::ObjectPath& object_path,
                           const base::Closure& callback,
                           const ErrorCallback& error_callback) OVERRIDE {
     dbus::MethodCall method_call(
         bluetooth_device::kBluetoothDeviceInterface,
         bluetooth_device::kDisconnect);

     dbus::ObjectProxy* object_proxy =
         object_manager_->GetObjectProxy(object_path);
     if (!object_proxy) {
       error_callback.Run(kUnknownDeviceError, "");
       return;
     }

     object_proxy->CallMethodWithErrorCallback(
         &method_call,
         dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
         base::Bind(&BluetoothDeviceClientImpl::OnSuccess,
                    weak_ptr_factory_.GetWeakPtr(), callback),
         base::Bind(&BluetoothDeviceClientImpl::OnError,
                    weak_ptr_factory_.GetWeakPtr(), error_callback));
   }

   // BluetoothDeviceClient override.
   virtual void ConnectProfile(const dbus::ObjectPath& object_path,
                               const std::string& uuid,
                               const base::Closure& callback,
                               const ErrorCallback& error_callback) OVERRIDE {
     dbus::MethodCall method_call(
         bluetooth_device::kBluetoothDeviceInterface,
         bluetooth_device::kConnectProfile);

     dbus::MessageWriter writer(&method_call);
     writer.AppendString(uuid);

     dbus::ObjectProxy* object_proxy =
         object_manager_->GetObjectProxy(object_path);
     if (!object_proxy) {
       error_callback.Run(kUnknownDeviceError, "");
       return;
     }

     // Connect may take an arbitrary length of time, so use no timeout.
     object_proxy->CallMethodWithErrorCallback(
         &method_call,
         dbus::ObjectProxy::TIMEOUT_INFINITE,
         base::Bind(&BluetoothDeviceClientImpl::OnSuccess,
                    weak_ptr_factory_.GetWeakPtr(), callback),
         base::Bind(&BluetoothDeviceClientImpl::OnError,
                    weak_ptr_factory_.GetWeakPtr(), error_callback));
   }

   // BluetoothDeviceClient override.
   virtual void DisconnectProfile(const dbus::ObjectPath& object_path,
                                  const std::string& uuid,
                                  const base::Closure& callback,
                                  const ErrorCallback& error_callback)
         OVERRIDE {
     dbus::MethodCall method_call(
         bluetooth_device::kBluetoothDeviceInterface,
         bluetooth_device::kDisconnectProfile);

     dbus::MessageWriter writer(&method_call);
     writer.AppendString(uuid);

     dbus::ObjectProxy* object_proxy =
         object_manager_->GetObjectProxy(object_path);
     if (!object_proxy) {
       error_callback.Run(kUnknownDeviceError, "");
       return;
     }

     object_proxy->CallMethodWithErrorCallback(
         &method_call,
         dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
         base::Bind(&BluetoothDeviceClientImpl::OnSuccess,
                    weak_ptr_factory_.GetWeakPtr(), callback),
         base::Bind(&BluetoothDeviceClientImpl::OnError,
                    weak_ptr_factory_.GetWeakPtr(), error_callback));
   }

   // BluetoothDeviceClient override.
   virtual void Pair(const dbus::ObjectPath& object_path,
                     const base::Closure& callback,
                     const ErrorCallback& error_callback) OVERRIDE {
     dbus::MethodCall method_call(
         bluetooth_device::kBluetoothDeviceInterface,
         bluetooth_device::kPair);

     dbus::ObjectProxy* object_proxy =
         object_manager_->GetObjectProxy(object_path);
     if (!object_proxy) {
       error_callback.Run(kUnknownDeviceError, "");
       return;
     }

     // Pairing may take an arbitrary length of time, so use no timeout.
     object_proxy->CallMethodWithErrorCallback(
         &method_call,
         dbus::ObjectProxy::TIMEOUT_INFINITE,
         base::Bind(&BluetoothDeviceClientImpl::OnSuccess,
                    weak_ptr_factory_.GetWeakPtr(), callback),
         base::Bind(&BluetoothDeviceClientImpl::OnError,
                    weak_ptr_factory_.GetWeakPtr(), error_callback));
   }

   // BluetoothDeviceClient override.
   virtual void CancelPairing(const dbus::ObjectPath& object_path,
                              const base::Closure& callback,
                              const ErrorCallback& error_callback)
         OVERRIDE {
     dbus::MethodCall method_call(
         bluetooth_device::kBluetoothDeviceInterface,
         bluetooth_device::kCancelPairing);

     dbus::ObjectProxy* object_proxy =
         object_manager_->GetObjectProxy(object_path);
     if (!object_proxy) {
       error_callback.Run(kUnknownDeviceError, "");
       return;
     }
     object_proxy->CallMethodWithErrorCallback(
         &method_call,
         dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
         base::Bind(&BluetoothDeviceClientImpl::OnSuccess,
                    weak_ptr_factory_.GetWeakPtr(), callback),
         base::Bind(&BluetoothDeviceClientImpl::OnError,
                    weak_ptr_factory_.GetWeakPtr(), error_callback));
   }

  protected:
   virtual void Init(dbus::Bus* bus) OVERRIDE {
     object_manager_ = bus->GetObjectManager(
         bluetooth_object_manager::kBluetoothObjectManagerServiceName,
         dbus::ObjectPath(
             bluetooth_object_manager::kBluetoothObjectManagerServicePath));
     object_manager_->RegisterInterface(
         bluetooth_device::kBluetoothDeviceInterface, this);
   }

  private:
   // Called by dbus::ObjectManager when an object with the device interface
   // is created. Informs observers.
   virtual void ObjectAdded(const dbus::ObjectPath& object_path,
                            const std::string& interface_name) OVERRIDE {
     FOR_EACH_OBSERVER(BluetoothDeviceClient::Observer, observers_,
                       DeviceAdded(object_path));
   }

   // Called by dbus::ObjectManager when an object with the device interface
   // is removed. Informs observers.
   virtual void ObjectRemoved(const dbus::ObjectPath& object_path,
                              const std::string& interface_name) OVERRIDE {
     FOR_EACH_OBSERVER(BluetoothDeviceClient::Observer, observers_,
                       DeviceRemoved(object_path));
   }

   // Called by BluetoothPropertySet when a property value is changed,
   // either by result of a signal or response to a GetAll() or Get()
   // call. Informs observers.
   void OnPropertyChanged(const dbus::ObjectPath& object_path,
                          const std::string& property_name) {
     FOR_EACH_OBSERVER(BluetoothDeviceClient::Observer, observers_,
                       DevicePropertyChanged(object_path, property_name));
   }

   // 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 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_message = "";
     }
     error_callback.Run(error_name, error_message);
   }

   dbus::ObjectManager* object_manager_;

   // List of observers interested in event notifications from us.
   ObserverList<BluetoothDeviceClient::Observer> observers_;

   // Weak pointer factory for generating 'this' pointers that might live longer
   // than we do.
   // Note: This should remain the last member so it'll be destroyed and
   // invalidate its weak pointers before any other members are destroyed.
   base::WeakPtrFactory<BluetoothDeviceClientImpl> weak_ptr_factory_;

   DISALLOW_COPY_AND_ASSIGN(BluetoothDeviceClientImpl);
 };

 BluetoothDeviceClient::BluetoothDeviceClient() {
 }

 BluetoothDeviceClient::~BluetoothDeviceClient() {
 }

 BluetoothDeviceClient* BluetoothDeviceClient::Create(
     DBusClientImplementationType type) {
   if (type == REAL_DBUS_CLIENT_IMPLEMENTATION)
     return new BluetoothDeviceClientImpl();
   DCHECK_EQ(STUB_DBUS_CLIENT_IMPLEMENTATION, type);
   return new FakeBluetoothDeviceClient();
 }

 }  // namespace chromeos
	// Copyright 2013 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_device_client.h"

	#include "base/bind.h"
	#include "base/logging.h"
	#include "base/stl_util.h"
	#include "chromeos/dbus/fake_bluetooth_device_client.h"
	#include "dbus/bus.h"
	#include "dbus/message.h"
	#include "dbus/object_manager.h"
	#include "dbus/object_path.h"
	#include "dbus/object_proxy.h"
	#include "third_party/cros_system_api/dbus/service_constants.h"

	namespace chromeos {

	const char BluetoothDeviceClient::kNoResponseError[] =
	"org.chromium.Error.NoResponse";
	const char BluetoothDeviceClient::kUnknownDeviceError[] =
	"org.chromium.Error.UnknownDevice";

	BluetoothDeviceClient::Properties::Properties(
	dbus::ObjectProxy* object_proxy,
	const std::string& interface_name,
	const PropertyChangedCallback& callback)
	: dbus::PropertySet(object_proxy, interface_name, callback) {
	RegisterProperty(bluetooth_device::kAddressProperty, &address);
	RegisterProperty(bluetooth_device::kNameProperty, &name);
	RegisterProperty(bluetooth_device::kIconProperty, &icon);
	RegisterProperty(bluetooth_device::kClassProperty, &bluetooth_class);
	RegisterProperty(bluetooth_device::kAppearanceProperty, &appearance);
	RegisterProperty(bluetooth_device::kUUIDsProperty, &uuids);
	RegisterProperty(bluetooth_device::kPairedProperty, &paired);
	RegisterProperty(bluetooth_device::kConnectedProperty, &connected);
	RegisterProperty(bluetooth_device::kTrustedProperty, &trusted);
	RegisterProperty(bluetooth_device::kBlockedProperty, &blocked);
	RegisterProperty(bluetooth_device::kAliasProperty, &alias);
	RegisterProperty(bluetooth_device::kAdapterProperty, &adapter);
	RegisterProperty(bluetooth_device::kLegacyPairingProperty, &legacy_pairing);
	RegisterProperty(bluetooth_device::kModaliasProperty, &modalias);
	RegisterProperty(bluetooth_device::kRSSIProperty, &rssi);
	}

	BluetoothDeviceClient::Properties::~Properties() {
	}


	// The BluetoothDeviceClient implementation used in production.
	class BluetoothDeviceClientImpl
	: public BluetoothDeviceClient,
	public dbus::ObjectManager::Interface {
	public:
	BluetoothDeviceClientImpl() : weak_ptr_factory_(this) {}

	virtual ~BluetoothDeviceClientImpl() {
	object_manager_->UnregisterInterface(
	bluetooth_device::kBluetoothDeviceInterface);
	}

	// BluetoothDeviceClient override.
	virtual void AddObserver(BluetoothDeviceClient::Observer* observer)
	OVERRIDE {
	DCHECK(observer);
	observers_.AddObserver(observer);
	}

	// BluetoothDeviceClient override.
	virtual void RemoveObserver(BluetoothDeviceClient::Observer* observer)
	OVERRIDE {
	DCHECK(observer);
	observers_.RemoveObserver(observer);
	}

	// dbus::ObjectManager::Interface override.
	virtual dbus::PropertySet* CreateProperties(
	dbus::ObjectProxy* object_proxy,
	const dbus::ObjectPath& object_path,
	const std::string& interface_name) OVERRIDE {
	Properties* properties = new Properties(
	object_proxy,
	interface_name,
	base::Bind(&BluetoothDeviceClientImpl::OnPropertyChanged,
	weak_ptr_factory_.GetWeakPtr(),
	object_path));
	return static_cast<dbus::PropertySet*>(properties);
	}

	// BluetoothDeviceClient override.
	virtual std::vector<dbus::ObjectPath> GetDevicesForAdapter(
	const dbus::ObjectPath& adapter_path) OVERRIDE {
	std::vector<dbus::ObjectPath> object_paths, device_paths;
	device_paths = object_manager_->GetObjectsWithInterface(
	bluetooth_device::kBluetoothDeviceInterface);
	for (std::vector<dbus::ObjectPath>::iterator iter = device_paths.begin();
	iter != device_paths.end(); ++iter) {
	Properties* properties = GetProperties(*iter);
	if (properties->adapter.value() == adapter_path)
	object_paths.push_back(*iter);
	}
	return object_paths;
	}

	// BluetoothDeviceClient override.
	virtual Properties* GetProperties(const dbus::ObjectPath& object_path)
	OVERRIDE {
	return static_cast<Properties*>(
	object_manager_->GetProperties(
	object_path,
	bluetooth_device::kBluetoothDeviceInterface));
	}

	// BluetoothDeviceClient override.
	virtual void Connect(const dbus::ObjectPath& object_path,
	const base::Closure& callback,
	const ErrorCallback& error_callback) OVERRIDE {
	dbus::MethodCall method_call(
	bluetooth_device::kBluetoothDeviceInterface,
	bluetooth_device::kConnect);

	dbus::ObjectProxy* object_proxy =
	object_manager_->GetObjectProxy(object_path);
	if (!object_proxy) {
	error_callback.Run(kUnknownDeviceError, "");
	return;
	}

	// Connect may take an arbitrary length of time, so use no timeout.
	object_proxy->CallMethodWithErrorCallback(
	&method_call,
	dbus::ObjectProxy::TIMEOUT_INFINITE,
	base::Bind(&BluetoothDeviceClientImpl::OnSuccess,
	weak_ptr_factory_.GetWeakPtr(), callback),
	base::Bind(&BluetoothDeviceClientImpl::OnError,
	weak_ptr_factory_.GetWeakPtr(), error_callback));
	}

	// BluetoothDeviceClient override.
	virtual void Disconnect(const dbus::ObjectPath& object_path,
	const base::Closure& callback,
	const ErrorCallback& error_callback) OVERRIDE {
	dbus::MethodCall method_call(
	bluetooth_device::kBluetoothDeviceInterface,
	bluetooth_device::kDisconnect);

	dbus::ObjectProxy* object_proxy =
	object_manager_->GetObjectProxy(object_path);
	if (!object_proxy) {
	error_callback.Run(kUnknownDeviceError, "");
	return;
	}

	object_proxy->CallMethodWithErrorCallback(
	&method_call,
	dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
	base::Bind(&BluetoothDeviceClientImpl::OnSuccess,
	weak_ptr_factory_.GetWeakPtr(), callback),
	base::Bind(&BluetoothDeviceClientImpl::OnError,
	weak_ptr_factory_.GetWeakPtr(), error_callback));
	}

	// BluetoothDeviceClient override.
	virtual void ConnectProfile(const dbus::ObjectPath& object_path,
	const std::string& uuid,
	const base::Closure& callback,
	const ErrorCallback& error_callback) OVERRIDE {
	dbus::MethodCall method_call(
	bluetooth_device::kBluetoothDeviceInterface,
	bluetooth_device::kConnectProfile);

	dbus::MessageWriter writer(&method_call);
	writer.AppendString(uuid);

	dbus::ObjectProxy* object_proxy =
	object_manager_->GetObjectProxy(object_path);
	if (!object_proxy) {
	error_callback.Run(kUnknownDeviceError, "");
	return;
	}

	// Connect may take an arbitrary length of time, so use no timeout.
	object_proxy->CallMethodWithErrorCallback(
	&method_call,
	dbus::ObjectProxy::TIMEOUT_INFINITE,
	base::Bind(&BluetoothDeviceClientImpl::OnSuccess,
	weak_ptr_factory_.GetWeakPtr(), callback),
	base::Bind(&BluetoothDeviceClientImpl::OnError,
	weak_ptr_factory_.GetWeakPtr(), error_callback));
	}

	// BluetoothDeviceClient override.
	virtual void DisconnectProfile(const dbus::ObjectPath& object_path,
	const std::string& uuid,
	const base::Closure& callback,
	const ErrorCallback& error_callback)
	OVERRIDE {
	dbus::MethodCall method_call(
	bluetooth_device::kBluetoothDeviceInterface,
	bluetooth_device::kDisconnectProfile);

	dbus::MessageWriter writer(&method_call);
	writer.AppendString(uuid);

	dbus::ObjectProxy* object_proxy =
	object_manager_->GetObjectProxy(object_path);
	if (!object_proxy) {
	error_callback.Run(kUnknownDeviceError, "");
	return;
	}

	object_proxy->CallMethodWithErrorCallback(
	&method_call,
	dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
	base::Bind(&BluetoothDeviceClientImpl::OnSuccess,
	weak_ptr_factory_.GetWeakPtr(), callback),
	base::Bind(&BluetoothDeviceClientImpl::OnError,
	weak_ptr_factory_.GetWeakPtr(), error_callback));
	}

	// BluetoothDeviceClient override.
	virtual void Pair(const dbus::ObjectPath& object_path,
	const base::Closure& callback,
	const ErrorCallback& error_callback) OVERRIDE {
	dbus::MethodCall method_call(
	bluetooth_device::kBluetoothDeviceInterface,
	bluetooth_device::kPair);

	dbus::ObjectProxy* object_proxy =
	object_manager_->GetObjectProxy(object_path);
	if (!object_proxy) {
	error_callback.Run(kUnknownDeviceError, "");
	return;
	}

	// Pairing may take an arbitrary length of time, so use no timeout.
	object_proxy->CallMethodWithErrorCallback(
	&method_call,
	dbus::ObjectProxy::TIMEOUT_INFINITE,
	base::Bind(&BluetoothDeviceClientImpl::OnSuccess,
	weak_ptr_factory_.GetWeakPtr(), callback),
	base::Bind(&BluetoothDeviceClientImpl::OnError,
	weak_ptr_factory_.GetWeakPtr(), error_callback));
	}

	// BluetoothDeviceClient override.
	virtual void CancelPairing(const dbus::ObjectPath& object_path,
	const base::Closure& callback,
	const ErrorCallback& error_callback)
	OVERRIDE {
	dbus::MethodCall method_call(
	bluetooth_device::kBluetoothDeviceInterface,
	bluetooth_device::kCancelPairing);

	dbus::ObjectProxy* object_proxy =
	object_manager_->GetObjectProxy(object_path);
	if (!object_proxy) {
	error_callback.Run(kUnknownDeviceError, "");
	return;
	}
	object_proxy->CallMethodWithErrorCallback(
	&method_call,
	dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
	base::Bind(&BluetoothDeviceClientImpl::OnSuccess,
	weak_ptr_factory_.GetWeakPtr(), callback),
	base::Bind(&BluetoothDeviceClientImpl::OnError,
	weak_ptr_factory_.GetWeakPtr(), error_callback));
	}

	protected:
	virtual void Init(dbus::Bus* bus) OVERRIDE {
	object_manager_ = bus->GetObjectManager(
	bluetooth_object_manager::kBluetoothObjectManagerServiceName,
	dbus::ObjectPath(
	bluetooth_object_manager::kBluetoothObjectManagerServicePath));
	object_manager_->RegisterInterface(
	bluetooth_device::kBluetoothDeviceInterface, this);
	}

	private:
	// Called by dbus::ObjectManager when an object with the device interface
	// is created. Informs observers.
	virtual void ObjectAdded(const dbus::ObjectPath& object_path,
	const std::string& interface_name) OVERRIDE {
	FOR_EACH_OBSERVER(BluetoothDeviceClient::Observer, observers_,
	DeviceAdded(object_path));
	}

	// Called by dbus::ObjectManager when an object with the device interface
	// is removed. Informs observers.
	virtual void ObjectRemoved(const dbus::ObjectPath& object_path,
	const std::string& interface_name) OVERRIDE {
	FOR_EACH_OBSERVER(BluetoothDeviceClient::Observer, observers_,
	DeviceRemoved(object_path));
	}

	// Called by BluetoothPropertySet when a property value is changed,
	// either by result of a signal or response to a GetAll() or Get()
	// call. Informs observers.
	void OnPropertyChanged(const dbus::ObjectPath& object_path,
	const std::string& property_name) {
	FOR_EACH_OBSERVER(BluetoothDeviceClient::Observer, observers_,
	DevicePropertyChanged(object_path, property_name));
	}

	// 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 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_message = "";
	}
	error_callback.Run(error_name, error_message);
	}

	dbus::ObjectManager* object_manager_;

	// List of observers interested in event notifications from us.
	ObserverList<BluetoothDeviceClient::Observer> observers_;

	// Weak pointer factory for generating 'this' pointers that might live longer
	// than we do.
	// Note: This should remain the last member so it'll be destroyed and
	// invalidate its weak pointers before any other members are destroyed.
	base::WeakPtrFactory<BluetoothDeviceClientImpl> weak_ptr_factory_;

	DISALLOW_COPY_AND_ASSIGN(BluetoothDeviceClientImpl);
	};

	BluetoothDeviceClient::BluetoothDeviceClient() {
	}

	BluetoothDeviceClient::~BluetoothDeviceClient() {
	}

	BluetoothDeviceClient* BluetoothDeviceClient::Create(
	DBusClientImplementationType type) {
	if (type == REAL_DBUS_CLIENT_IMPLEMENTATION)
	return new BluetoothDeviceClientImpl();
	DCHECK_EQ(STUB_DBUS_CLIENT_IMPLEMENTATION, type);
	return new FakeBluetoothDeviceClient();
	}

	} // namespace chromeos