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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 "chromeos/dbus/bluetooth_gatt_service_client.h"
#include "base/bind.h"
#include "base/memory/weak_ptr.h"
#include "base/observer_list.h"
#include "dbus/bus.h"
#include "dbus/object_manager.h"
#include "third_party/cros_system_api/dbus/service_constants.h"
namespace chromeos {
namespace {
// TODO(armansito): Add these to service_constants.h when they are defined
// in the BlueZ doc.
const char kDeviceProperty[] = "Device";
const char kPrimaryProperty[] = "Primary";
} // namespace
BluetoothGattServiceClient::Properties::Properties(
dbus::ObjectProxy* object_proxy,
const std::string& interface_name,
const PropertyChangedCallback&callback)
: dbus::PropertySet(object_proxy, interface_name, callback) {
RegisterProperty(bluetooth_gatt_service::kUUIDProperty, &uuid);
RegisterProperty(bluetooth_gatt_service::kIncludesProperty, &includes);
RegisterProperty(kDeviceProperty, &device);
RegisterProperty(kPrimaryProperty, &primary);
}
BluetoothGattServiceClient::Properties::~Properties() {
}
// The BluetoothGattServiceClient implementation used in production.
class BluetoothGattServiceClientImpl : public BluetoothGattServiceClient,
public dbus::ObjectManager::Interface {
public:
BluetoothGattServiceClientImpl()
: object_manager_(NULL),
weak_ptr_factory_(this) {
}
virtual ~BluetoothGattServiceClientImpl() {
object_manager_->UnregisterInterface(
bluetooth_gatt_service::kBluetoothGattServiceInterface);
}
// BluetoothGattServiceClientImpl override.
virtual void AddObserver(
BluetoothGattServiceClient::Observer* observer) OVERRIDE {
DCHECK(observer);
observers_.AddObserver(observer);
}
// BluetoothGattServiceClientImpl override.
virtual void RemoveObserver(
BluetoothGattServiceClient::Observer* observer) OVERRIDE {
DCHECK(observer);
observers_.RemoveObserver(observer);
}
// BluetoothGattServiceClientImpl override.
virtual std::vector<dbus::ObjectPath> GetServices() OVERRIDE {
DCHECK(object_manager_);
return object_manager_->GetObjectsWithInterface(
bluetooth_gatt_service::kBluetoothGattServiceInterface);
}
// BluetoothGattServiceClientImpl override.
virtual Properties* GetProperties(
const dbus::ObjectPath& object_path) OVERRIDE {
DCHECK(object_manager_);
return static_cast<Properties*>(
object_manager_->GetProperties(
object_path,
bluetooth_gatt_service::kBluetoothGattServiceInterface));
}
// 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(&BluetoothGattServiceClientImpl::OnPropertyChanged,
weak_ptr_factory_.GetWeakPtr(),
object_path));
return static_cast<dbus::PropertySet*>(properties);
}
// dbus::ObjectManager::Interface override.
virtual void ObjectAdded(const dbus::ObjectPath& object_path,
const std::string& interface_name) OVERRIDE {
VLOG(2) << "Remote GATT service added: " << object_path.value();
FOR_EACH_OBSERVER(BluetoothGattServiceClient::Observer, observers_,
GattServiceAdded(object_path));
}
// dbus::ObjectManager::Interface override.
virtual void ObjectRemoved(const dbus::ObjectPath& object_path,
const std::string& interface_name) OVERRIDE {
VLOG(2) << "Remote GATT service removed: " << object_path.value();
FOR_EACH_OBSERVER(BluetoothGattServiceClient::Observer, observers_,
GattServiceRemoved(object_path));
}
protected:
// chromeos::DBusClient override.
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_gatt_service::kBluetoothGattServiceInterface, this);
}
private:
// Called by dbus::PropertySet when a property value is changed, either by
// result of a signal or response to a GetAll() or Get() call. Informs
// observers.
virtual void OnPropertyChanged(const dbus::ObjectPath& object_path,
const std::string& property_name) {
VLOG(2) << "Remote GATT service property changed: " << object_path.value()
<< ": " << property_name;
FOR_EACH_OBSERVER(BluetoothGattServiceClient::Observer, observers_,
GattServicePropertyChanged(object_path, property_name));
}
dbus::ObjectManager* object_manager_;
// List of observers interested in event notifications from us.
ObserverList<BluetoothGattServiceClient::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<BluetoothGattServiceClientImpl> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(BluetoothGattServiceClientImpl);
};
BluetoothGattServiceClient::BluetoothGattServiceClient() {
}
BluetoothGattServiceClient::~BluetoothGattServiceClient() {
}
// static
BluetoothGattServiceClient* BluetoothGattServiceClient::Create() {
return new BluetoothGattServiceClientImpl();
}
} // namespace chromeos
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