| // 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_adapter_client.h" |
| |
| #include "base/bind.h" |
| #include "base/logging.h" |
| #include "dbus/bus.h" |
| #include "dbus/message.h" |
| #include "dbus/object_manager.h" |
| #include "dbus/object_proxy.h" |
| #include "third_party/cros_system_api/dbus/service_constants.h" |
| |
| namespace chromeos { |
| |
| BluetoothAdapterClient::DiscoveryFilter::DiscoveryFilter() { |
| } |
| |
| BluetoothAdapterClient::DiscoveryFilter::~DiscoveryFilter() { |
| } |
| |
| void BluetoothAdapterClient::DiscoveryFilter::CopyFrom( |
| const DiscoveryFilter& filter) { |
| if (filter.rssi.get()) |
| rssi.reset(new int16_t(*filter.rssi)); |
| else |
| rssi.reset(); |
| |
| if (filter.pathloss.get()) |
| pathloss.reset(new uint16_t(*filter.pathloss)); |
| else |
| pathloss.reset(); |
| |
| if (filter.transport.get()) |
| transport.reset(new std::string(*filter.transport)); |
| else |
| transport.reset(); |
| |
| if (filter.uuids.get()) |
| uuids.reset(new std::vector<std::string>(*filter.uuids)); |
| else |
| uuids.reset(); |
| } |
| |
| const char BluetoothAdapterClient::kNoResponseError[] = |
| "org.chromium.Error.NoResponse"; |
| const char BluetoothAdapterClient::kUnknownAdapterError[] = |
| "org.chromium.Error.UnknownAdapter"; |
| |
| BluetoothAdapterClient::Properties::Properties( |
| dbus::ObjectProxy* object_proxy, |
| const std::string& interface_name, |
| const PropertyChangedCallback& callback) |
| : dbus::PropertySet(object_proxy, interface_name, callback) { |
| RegisterProperty(bluetooth_adapter::kAddressProperty, &address); |
| RegisterProperty(bluetooth_adapter::kNameProperty, &name); |
| RegisterProperty(bluetooth_adapter::kAliasProperty, &alias); |
| RegisterProperty(bluetooth_adapter::kClassProperty, &bluetooth_class); |
| RegisterProperty(bluetooth_adapter::kPoweredProperty, &powered); |
| RegisterProperty(bluetooth_adapter::kDiscoverableProperty, &discoverable); |
| RegisterProperty(bluetooth_adapter::kPairableProperty, &pairable); |
| RegisterProperty(bluetooth_adapter::kPairableTimeoutProperty, |
| &pairable_timeout); |
| RegisterProperty(bluetooth_adapter::kDiscoverableTimeoutProperty, |
| &discoverable_timeout); |
| RegisterProperty(bluetooth_adapter::kDiscoveringProperty, &discovering); |
| RegisterProperty(bluetooth_adapter::kUUIDsProperty, &uuids); |
| RegisterProperty(bluetooth_adapter::kModaliasProperty, &modalias); |
| } |
| |
| BluetoothAdapterClient::Properties::~Properties() { |
| } |
| |
| |
| // The BluetoothAdapterClient implementation used in production. |
| class BluetoothAdapterClientImpl |
| : public BluetoothAdapterClient, |
| public dbus::ObjectManager::Interface { |
| public: |
| BluetoothAdapterClientImpl() |
| : object_manager_(NULL), weak_ptr_factory_(this) {} |
| |
| ~BluetoothAdapterClientImpl() override { |
| object_manager_->UnregisterInterface( |
| bluetooth_adapter::kBluetoothAdapterInterface); |
| } |
| |
| // BluetoothAdapterClient override. |
| void AddObserver(BluetoothAdapterClient::Observer* observer) override { |
| DCHECK(observer); |
| observers_.AddObserver(observer); |
| } |
| |
| // BluetoothAdapterClient override. |
| void RemoveObserver(BluetoothAdapterClient::Observer* observer) override { |
| DCHECK(observer); |
| observers_.RemoveObserver(observer); |
| } |
| |
| // Returns the list of adapter object paths known to the system. |
| std::vector<dbus::ObjectPath> GetAdapters() override { |
| return object_manager_->GetObjectsWithInterface( |
| bluetooth_adapter::kBluetoothAdapterInterface); |
| } |
| |
| // dbus::ObjectManager::Interface override. |
| 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(&BluetoothAdapterClientImpl::OnPropertyChanged, |
| weak_ptr_factory_.GetWeakPtr(), |
| object_path)); |
| return static_cast<dbus::PropertySet*>(properties); |
| } |
| |
| // BluetoothAdapterClient override. |
| Properties* GetProperties(const dbus::ObjectPath& object_path) override { |
| return static_cast<Properties*>( |
| object_manager_->GetProperties( |
| object_path, |
| bluetooth_adapter::kBluetoothAdapterInterface)); |
| } |
| |
| // BluetoothAdapterClient override. |
| void StartDiscovery(const dbus::ObjectPath& object_path, |
| const base::Closure& callback, |
| const ErrorCallback& error_callback) override { |
| dbus::MethodCall method_call( |
| bluetooth_adapter::kBluetoothAdapterInterface, |
| bluetooth_adapter::kStartDiscovery); |
| |
| dbus::ObjectProxy* object_proxy = |
| object_manager_->GetObjectProxy(object_path); |
| if (!object_proxy) { |
| error_callback.Run(kUnknownAdapterError, ""); |
| return; |
| } |
| |
| object_proxy->CallMethodWithErrorCallback( |
| &method_call, |
| dbus::ObjectProxy::TIMEOUT_USE_DEFAULT, |
| base::Bind(&BluetoothAdapterClientImpl::OnSuccess, |
| weak_ptr_factory_.GetWeakPtr(), callback), |
| base::Bind(&BluetoothAdapterClientImpl::OnError, |
| weak_ptr_factory_.GetWeakPtr(), error_callback)); |
| } |
| |
| // BluetoothAdapterClient override. |
| void StopDiscovery(const dbus::ObjectPath& object_path, |
| const base::Closure& callback, |
| const ErrorCallback& error_callback) override { |
| dbus::MethodCall method_call( |
| bluetooth_adapter::kBluetoothAdapterInterface, |
| bluetooth_adapter::kStopDiscovery); |
| |
| dbus::ObjectProxy* object_proxy = |
| object_manager_->GetObjectProxy(object_path); |
| if (!object_proxy) { |
| error_callback.Run(kUnknownAdapterError, ""); |
| return; |
| } |
| |
| object_proxy->CallMethodWithErrorCallback( |
| &method_call, |
| dbus::ObjectProxy::TIMEOUT_USE_DEFAULT, |
| base::Bind(&BluetoothAdapterClientImpl::OnSuccess, |
| weak_ptr_factory_.GetWeakPtr(), callback), |
| base::Bind(&BluetoothAdapterClientImpl::OnError, |
| weak_ptr_factory_.GetWeakPtr(), error_callback)); |
| } |
| |
| // BluetoothAdapterClient override. |
| void RemoveDevice(const dbus::ObjectPath& object_path, |
| const dbus::ObjectPath& device_path, |
| const base::Closure& callback, |
| const ErrorCallback& error_callback) override { |
| dbus::MethodCall method_call( |
| bluetooth_adapter::kBluetoothAdapterInterface, |
| bluetooth_adapter::kRemoveDevice); |
| |
| dbus::MessageWriter writer(&method_call); |
| writer.AppendObjectPath(device_path); |
| |
| dbus::ObjectProxy* object_proxy = |
| object_manager_->GetObjectProxy(object_path); |
| if (!object_proxy) { |
| error_callback.Run(kUnknownAdapterError, ""); |
| return; |
| } |
| |
| object_proxy->CallMethodWithErrorCallback( |
| &method_call, |
| dbus::ObjectProxy::TIMEOUT_USE_DEFAULT, |
| base::Bind(&BluetoothAdapterClientImpl::OnSuccess, |
| weak_ptr_factory_.GetWeakPtr(), callback), |
| base::Bind(&BluetoothAdapterClientImpl::OnError, |
| weak_ptr_factory_.GetWeakPtr(), error_callback)); |
| } |
| |
| // BluetoothAdapterClient override. |
| void SetDiscoveryFilter(const dbus::ObjectPath& object_path, |
| const DiscoveryFilter& discovery_filter, |
| const base::Closure& callback, |
| const ErrorCallback& error_callback) override { |
| dbus::MethodCall method_call(bluetooth_adapter::kBluetoothAdapterInterface, |
| bluetooth_adapter::kSetDiscoveryFilter); |
| |
| dbus::MessageWriter writer(&method_call); |
| dbus::MessageWriter dict_writer(nullptr); |
| |
| dbus::ObjectProxy* object_proxy = |
| object_manager_->GetObjectProxy(object_path); |
| if (!object_proxy) { |
| error_callback.Run(kUnknownAdapterError, ""); |
| return; |
| } |
| |
| writer.OpenArray("{sv}", &dict_writer); |
| |
| if (discovery_filter.uuids.get()) { |
| std::vector<std::string>* uuids = discovery_filter.uuids.get(); |
| dbus::MessageWriter uuids_entry_writer(nullptr); |
| dict_writer.OpenDictEntry(&uuids_entry_writer); |
| uuids_entry_writer.AppendString( |
| bluetooth_adapter::kDiscoveryFilterParameterUUIDs); |
| |
| dbus::MessageWriter uuids_array_variant(nullptr); |
| uuids_entry_writer.OpenVariant("as", &uuids_array_variant); |
| dbus::MessageWriter uuids_array(nullptr); |
| uuids_array_variant.OpenArray("s", &uuids_array); |
| |
| for (auto& it : *uuids) |
| uuids_array.AppendString(it); |
| |
| uuids_array_variant.CloseContainer(&uuids_array); |
| uuids_entry_writer.CloseContainer(&uuids_array_variant); |
| dict_writer.CloseContainer(&uuids_entry_writer); |
| } |
| |
| if (discovery_filter.rssi.get()) { |
| dbus::MessageWriter rssi_entry_writer(nullptr); |
| dict_writer.OpenDictEntry(&rssi_entry_writer); |
| rssi_entry_writer.AppendString( |
| bluetooth_adapter::kDiscoveryFilterParameterRSSI); |
| rssi_entry_writer.AppendVariantOfInt16(*discovery_filter.rssi.get()); |
| dict_writer.CloseContainer(&rssi_entry_writer); |
| } |
| |
| if (discovery_filter.pathloss.get()) { |
| dbus::MessageWriter pathloss_entry_writer(nullptr); |
| dict_writer.OpenDictEntry(&pathloss_entry_writer); |
| pathloss_entry_writer.AppendString( |
| bluetooth_adapter::kDiscoveryFilterParameterPathloss); |
| pathloss_entry_writer.AppendVariantOfUint16( |
| *discovery_filter.pathloss.get()); |
| dict_writer.CloseContainer(&pathloss_entry_writer); |
| } |
| |
| if (discovery_filter.transport.get()) { |
| dbus::MessageWriter transport_entry_writer(nullptr); |
| dict_writer.OpenDictEntry(&transport_entry_writer); |
| transport_entry_writer.AppendString( |
| bluetooth_adapter::kDiscoveryFilterParameterTransport); |
| transport_entry_writer.AppendVariantOfString( |
| *discovery_filter.transport.get()); |
| dict_writer.CloseContainer(&transport_entry_writer); |
| } |
| |
| writer.CloseContainer(&dict_writer); |
| |
| object_proxy->CallMethodWithErrorCallback( |
| &method_call, dbus::ObjectProxy::TIMEOUT_USE_DEFAULT, |
| base::Bind(&BluetoothAdapterClientImpl::OnSuccess, |
| weak_ptr_factory_.GetWeakPtr(), callback), |
| base::Bind(&BluetoothAdapterClientImpl::OnError, |
| weak_ptr_factory_.GetWeakPtr(), error_callback)); |
| } |
| |
| protected: |
| void Init(dbus::Bus* bus) override { |
| object_manager_ = bus->GetObjectManager( |
| bluetooth_object_manager::kBluetoothObjectManagerServiceName, |
| dbus::ObjectPath( |
| bluetooth_object_manager::kBluetoothObjectManagerServicePath)); |
| object_manager_->RegisterInterface( |
| bluetooth_adapter::kBluetoothAdapterInterface, this); |
| } |
| |
| private: |
| // Called by dbus::ObjectManager when an object with the adapter interface |
| // is created. Informs observers. |
| void ObjectAdded(const dbus::ObjectPath& object_path, |
| const std::string& interface_name) override { |
| FOR_EACH_OBSERVER(BluetoothAdapterClient::Observer, observers_, |
| AdapterAdded(object_path)); |
| } |
| |
| // Called by dbus::ObjectManager when an object with the adapter interface |
| // is removed. Informs observers. |
| void ObjectRemoved(const dbus::ObjectPath& object_path, |
| const std::string& interface_name) override { |
| FOR_EACH_OBSERVER(BluetoothAdapterClient::Observer, observers_, |
| AdapterRemoved(object_path)); |
| } |
| |
| // 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. |
| void OnPropertyChanged(const dbus::ObjectPath& object_path, |
| const std::string& property_name) { |
| FOR_EACH_OBSERVER(BluetoothAdapterClient::Observer, observers_, |
| AdapterPropertyChanged(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. |
| base::ObserverList<BluetoothAdapterClient::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<BluetoothAdapterClientImpl> |
| weak_ptr_factory_; |
| |
| DISALLOW_COPY_AND_ASSIGN(BluetoothAdapterClientImpl); |
| }; |
| |
| BluetoothAdapterClient::BluetoothAdapterClient() { |
| } |
| |
| BluetoothAdapterClient::~BluetoothAdapterClient() { |
| } |
| |
| BluetoothAdapterClient* BluetoothAdapterClient::Create() { |
| return new BluetoothAdapterClientImpl; |
| } |
| |
| } // namespace chromeos |
