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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_service_client.h"
- #include "base/bind.h"
- #include "base/logging.h"
- #include "base/memory/raw_ptr.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 bluez {
- 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(bluetooth_gatt_service::kDeviceProperty, &device);
- RegisterProperty(bluetooth_gatt_service::kPrimaryProperty, &primary);
- }
- BluetoothGattServiceClient::Properties::~Properties() = default;
- // The BluetoothGattServiceClient implementation used in production.
- class BluetoothGattServiceClientImpl : public BluetoothGattServiceClient,
- public dbus::ObjectManager::Interface {
- public:
- BluetoothGattServiceClientImpl() : object_manager_(nullptr) {}
- BluetoothGattServiceClientImpl(const BluetoothGattServiceClientImpl&) =
- delete;
- BluetoothGattServiceClientImpl& operator=(
- const BluetoothGattServiceClientImpl&) = delete;
- ~BluetoothGattServiceClientImpl() override {
- object_manager_->UnregisterInterface(
- bluetooth_gatt_service::kBluetoothGattServiceInterface);
- }
- // BluetoothGattServiceClientImpl override.
- void AddObserver(BluetoothGattServiceClient::Observer* observer) override {
- DCHECK(observer);
- observers_.AddObserver(observer);
- }
- // BluetoothGattServiceClientImpl override.
- void RemoveObserver(BluetoothGattServiceClient::Observer* observer) override {
- DCHECK(observer);
- observers_.RemoveObserver(observer);
- }
- // BluetoothGattServiceClientImpl override.
- std::vector<dbus::ObjectPath> GetServices() override {
- DCHECK(object_manager_);
- return object_manager_->GetObjectsWithInterface(
- bluetooth_gatt_service::kBluetoothGattServiceInterface);
- }
- // BluetoothGattServiceClientImpl override.
- 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.
- dbus::PropertySet* CreateProperties(
- dbus::ObjectProxy* object_proxy,
- const dbus::ObjectPath& object_path,
- const std::string& interface_name) override {
- return new Properties(
- object_proxy, interface_name,
- base::BindRepeating(&BluetoothGattServiceClientImpl::OnPropertyChanged,
- weak_ptr_factory_.GetWeakPtr(), object_path));
- }
- // dbus::ObjectManager::Interface override.
- void ObjectAdded(const dbus::ObjectPath& object_path,
- const std::string& interface_name) override {
- DVLOG(2) << "Remote GATT service added: " << object_path.value();
- for (auto& observer : observers_)
- observer.GattServiceAdded(object_path);
- }
- // dbus::ObjectManager::Interface override.
- void ObjectRemoved(const dbus::ObjectPath& object_path,
- const std::string& interface_name) override {
- DVLOG(2) << "Remote GATT service removed: " << object_path.value();
- for (auto& observer : observers_)
- observer.GattServiceRemoved(object_path);
- }
- protected:
- // bluez::DBusClient override.
- void Init(dbus::Bus* bus,
- const std::string& bluetooth_service_name) override {
- object_manager_ = bus->GetObjectManager(
- bluetooth_service_name,
- 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) {
- DVLOG(2) << "Remote GATT service property changed: " << object_path.value()
- << ": " << property_name;
- for (auto& observer : observers_)
- observer.GattServicePropertyChanged(object_path, property_name);
- }
- raw_ptr<dbus::ObjectManager> object_manager_;
- // List of observers interested in event notifications from us.
- base::ObserverList<BluetoothGattServiceClient::Observer>::Unchecked
- 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_{this};
- };
- BluetoothGattServiceClient::BluetoothGattServiceClient() = default;
- BluetoothGattServiceClient::~BluetoothGattServiceClient() = default;
- // static
- BluetoothGattServiceClient* BluetoothGattServiceClient::Create() {
- return new BluetoothGattServiceClientImpl();
- }
- } // namespace bluez
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