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// 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 "device/bluetooth/dbus/bluetooth_gatt_manager_client.h"
#include "base/bind.h"
#include "base/memory/weak_ptr.h"
#include "dbus/bus.h"
#include "dbus/message.h"
#include "dbus/object_proxy.h"
#include "third_party/cros_system_api/dbus/service_constants.h"
namespace bluez {
const char BluetoothGattManagerClient::kNoResponseError[] =
"org.chromium.Error.NoResponse";
// The BluetoothGattManagerClient implementation used in production.
class BluetoothGattManagerClientImpl : public BluetoothGattManagerClient {
public:
BluetoothGattManagerClientImpl()
: object_proxy_(NULL), weak_ptr_factory_(this) {}
~BluetoothGattManagerClientImpl() override {}
// BluetoothGattManagerClient override.
void RegisterService(const dbus::ObjectPath& service_path,
const Options& options,
const base::Closure& callback,
const ErrorCallback& error_callback) override {
dbus::MethodCall method_call(
bluetooth_gatt_manager::kBluetoothGattManagerInterface,
bluetooth_gatt_manager::kRegisterService);
dbus::MessageWriter writer(&method_call);
writer.AppendObjectPath(service_path);
// TODO(armansito): The parameters of the Options dictionary are undefined
// but the method signature still requires a value dictionary. Pass an
// empty dictionary and fill in the contents later once this is defined.
dbus::MessageWriter array_writer(NULL);
writer.OpenArray("{sv}", &array_writer);
writer.CloseContainer(&array_writer);
DCHECK(object_proxy_);
object_proxy_->CallMethodWithErrorCallback(
&method_call, dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
base::Bind(&BluetoothGattManagerClientImpl::OnSuccess,
weak_ptr_factory_.GetWeakPtr(), callback),
base::Bind(&BluetoothGattManagerClientImpl::OnError,
weak_ptr_factory_.GetWeakPtr(), error_callback));
}
// BluetoothGattManagerClient override.
void UnregisterService(const dbus::ObjectPath& service_path,
const base::Closure& callback,
const ErrorCallback& error_callback) override {
dbus::MethodCall method_call(
bluetooth_gatt_manager::kBluetoothGattManagerInterface,
bluetooth_gatt_manager::kUnregisterService);
dbus::MessageWriter writer(&method_call);
writer.AppendObjectPath(service_path);
DCHECK(object_proxy_);
object_proxy_->CallMethodWithErrorCallback(
&method_call, dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
base::Bind(&BluetoothGattManagerClientImpl::OnSuccess,
weak_ptr_factory_.GetWeakPtr(), callback),
base::Bind(&BluetoothGattManagerClientImpl::OnError,
weak_ptr_factory_.GetWeakPtr(), error_callback));
}
protected:
// chromeos::DBusClient override.
void Init(dbus::Bus* bus) override {
DCHECK(bus);
object_proxy_ = bus->GetObjectProxy(
bluetooth_gatt_manager::kBluetoothGattManagerServiceName,
dbus::ObjectPath(
bluetooth_gatt_manager::kBluetoothGattManagerInterface));
}
private:
// Called when a response for a 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_callback.Run(error_name, error_message);
}
// The proxy to the remote GATT manager object.
dbus::ObjectProxy* object_proxy_;
// 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<BluetoothGattManagerClientImpl> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(BluetoothGattManagerClientImpl);
};
BluetoothGattManagerClient::BluetoothGattManagerClient() {}
BluetoothGattManagerClient::~BluetoothGattManagerClient() {}
// static
BluetoothGattManagerClient* BluetoothGattManagerClient::Create() {
return new BluetoothGattManagerClientImpl();
}
} // namespace bluez
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