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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "device/bluetooth/bluetooth_adapter_win.h"
#include <memory>
#include <string>
#include <utility>
#include "base/check.h"
#include "base/containers/contains.h"
#include "base/feature_list.h"
#include "base/functional/bind.h"
#include "base/location.h"
#include "base/memory/ptr_util.h"
#include "base/notimplemented.h"
#include "base/notreached.h"
#include "base/stl_util.h"
#include "base/task/sequenced_task_runner.h"
#include "base/task/single_thread_task_runner.h"
#include "device/base/features.h"
#include "device/bluetooth/bluetooth_adapter_winrt.h"
#include "device/bluetooth/bluetooth_classic_win.h"
#include "device/bluetooth/bluetooth_device_win.h"
#include "device/bluetooth/bluetooth_discovery_session_outcome.h"
#include "device/bluetooth/bluetooth_socket_thread.h"
#include "device/bluetooth/bluetooth_socket_win.h"
#include "device/bluetooth/bluetooth_task_manager_win.h"
#include "device/bluetooth/public/cpp/bluetooth_address.h"
#include "device/bluetooth/public/cpp/bluetooth_uuid.h"
namespace device {
// static
scoped_refptr<BluetoothAdapter> BluetoothAdapter::CreateAdapter() {
return BluetoothAdapterWin::CreateAdapter();
}
// static
scoped_refptr<BluetoothAdapter> BluetoothAdapterWin::CreateAdapter() {
return base::WrapRefCounted(new BluetoothAdapterWinrt());
}
// static
scoped_refptr<BluetoothAdapter> BluetoothAdapterWin::CreateClassicAdapter() {
return base::WrapRefCounted(new BluetoothAdapterWin());
}
BluetoothAdapterWin::BluetoothAdapterWin() = default;
BluetoothAdapterWin::~BluetoothAdapterWin() {
if (task_manager_.get())
task_manager_->RemoveObserver(this);
}
std::string BluetoothAdapterWin::GetAddress() const {
return address_;
}
std::string BluetoothAdapterWin::GetName() const {
return name_;
}
void BluetoothAdapterWin::SetName(const std::string& name,
base::OnceClosure callback,
ErrorCallback error_callback) {
NOTIMPLEMENTED();
}
// TODO(youngki): Return true when |task_manager_| initializes the adapter
// state.
bool BluetoothAdapterWin::IsInitialized() const {
return initialized_;
}
bool BluetoothAdapterWin::IsPresent() const {
return !address_.empty();
}
bool BluetoothAdapterWin::IsPowered() const {
return powered_;
}
void BluetoothAdapterWin::SetPowered(bool powered,
base::OnceClosure callback,
ErrorCallback error_callback) {
task_manager_->PostSetPoweredBluetoothTask(powered, std::move(callback),
std::move(error_callback));
}
bool BluetoothAdapterWin::IsDiscoverable() const {
NOTIMPLEMENTED();
return false;
}
void BluetoothAdapterWin::SetDiscoverable(bool discoverable,
base::OnceClosure callback,
ErrorCallback error_callback) {
NOTIMPLEMENTED();
}
bool BluetoothAdapterWin::IsDiscovering() const {
return discovery_status_ == DISCOVERING ||
discovery_status_ == DISCOVERY_STOPPING;
}
void BluetoothAdapterWin::DiscoveryStarted(bool success) {
discovery_status_ = success ? DISCOVERING : NOT_DISCOVERING;
std::move(discovery_changed_callback_)
.Run(/*is_error=*/!success, UMABluetoothDiscoverySessionOutcome::UNKNOWN);
if (success) {
for (auto& observer : observers_)
observer.AdapterDiscoveringChanged(this, true);
}
}
void BluetoothAdapterWin::DiscoveryStopped() {
discovered_devices_.clear();
bool was_discovering = IsDiscovering();
discovery_status_ = NOT_DISCOVERING;
std::move(discovery_changed_callback_)
.Run(/*is_error=*/false, UMABluetoothDiscoverySessionOutcome::SUCCESS);
if (was_discovering)
for (auto& observer : observers_)
observer.AdapterDiscoveringChanged(this, false);
}
BluetoothAdapter::UUIDList BluetoothAdapterWin::GetUUIDs() const {
NOTIMPLEMENTED();
return UUIDList();
}
void BluetoothAdapterWin::CreateRfcommService(
const BluetoothUUID& uuid,
const ServiceOptions& options,
CreateServiceCallback callback,
CreateServiceErrorCallback error_callback) {
scoped_refptr<BluetoothSocketWin> socket =
BluetoothSocketWin::CreateBluetoothSocket(
ui_task_runner_, socket_thread_);
socket->Listen(this, uuid, options,
base::BindOnce(std::move(callback), socket),
std::move(error_callback));
}
void BluetoothAdapterWin::CreateL2capService(
const BluetoothUUID& uuid,
const ServiceOptions& options,
CreateServiceCallback callback,
CreateServiceErrorCallback error_callback) {
// TODO(keybuk): implement.
NOTIMPLEMENTED();
}
void BluetoothAdapterWin::RegisterAdvertisement(
std::unique_ptr<BluetoothAdvertisement::Data> advertisement_data,
CreateAdvertisementCallback callback,
AdvertisementErrorCallback error_callback) {
NOTIMPLEMENTED();
std::move(error_callback)
.Run(BluetoothAdvertisement::ERROR_UNSUPPORTED_PLATFORM);
}
BluetoothLocalGattService* BluetoothAdapterWin::GetGattService(
const std::string& identifier) const {
return nullptr;
}
void BluetoothAdapterWin::RemovePairingDelegateInternal(
BluetoothDevice::PairingDelegate* pairing_delegate) {
}
void BluetoothAdapterWin::AdapterStateChanged(
const BluetoothTaskManagerWin::AdapterState& state) {
DCHECK(thread_checker_.CalledOnValidThread());
name_ = state.name;
bool was_present = IsPresent();
bool is_present = !state.address.empty();
address_ = CanonicalizeBluetoothAddress(state.address);
if (was_present != is_present) {
for (auto& observer : observers_)
observer.AdapterPresentChanged(this, is_present);
}
if (powered_ != state.powered) {
powered_ = state.powered;
for (auto& observer : observers_)
observer.AdapterPoweredChanged(this, powered_);
}
if (!initialized_) {
initialized_ = true;
std::move(init_callback_).Run();
}
// When the Bluetooth adapter is powered off or not present, all Bluetooth
// devices should be removed.
if (!powered_ || !is_present) {
ClearAllDevices();
}
}
void BluetoothAdapterWin::DevicesPolled(
const std::vector<std::unique_ptr<BluetoothTaskManagerWin::DeviceState>>&
devices) {
DCHECK(thread_checker_.CalledOnValidThread());
// We are receiving a new list of all devices known to the system. Merge this
// new list with the list we know of (|devices_|) and raise corresponding
// DeviceAdded, DeviceRemoved and DeviceChanged events.
using DeviceAddressSet = std::set<std::string>;
DeviceAddressSet known_devices;
for (const auto& device : devices_)
known_devices.insert(device.first);
DeviceAddressSet new_devices;
for (const auto& device_state : devices)
new_devices.insert(device_state->address);
// Process device removal first.
DeviceAddressSet removed_devices =
base::STLSetDifference<DeviceAddressSet>(known_devices, new_devices);
for (const auto& device : removed_devices) {
auto it = devices_.find(device);
std::unique_ptr<BluetoothDevice> device_win = std::move(it->second);
devices_.erase(it);
for (auto& observer : observers_)
observer.DeviceRemoved(this, device_win.get());
}
// Process added and (maybe) changed devices in one pass.
DeviceAddressSet added_devices =
base::STLSetDifference<DeviceAddressSet>(new_devices, known_devices);
DeviceAddressSet changed_devices =
base::STLSetIntersection<DeviceAddressSet>(known_devices, new_devices);
for (const auto& device_state : devices) {
if (base::Contains(added_devices, device_state->address)) {
auto device_win = std::make_unique<BluetoothDeviceWin>(
this, *device_state, ui_task_runner_, socket_thread_);
BluetoothDeviceWin* device_win_raw = device_win.get();
devices_[device_state->address] = std::move(device_win);
for (auto& observer : observers_)
observer.DeviceAdded(this, device_win_raw);
} else if (base::Contains(changed_devices, device_state->address)) {
auto iter = devices_.find(device_state->address);
CHECK(iter != devices_.end());
BluetoothDeviceWin* device_win =
static_cast<BluetoothDeviceWin*>(iter->second.get());
if (!device_win->IsEqual(*device_state)) {
device_win->Update(*device_state);
for (auto& observer : observers_)
observer.DeviceChanged(this, device_win);
}
// Above IsEqual returns true if device name, address, status and services
// (primary services of BLE device) are the same. However, in BLE tests,
// we may simulate characteristic, descriptor and secondary GATT service
// after device has been initialized.
if (force_update_device_for_test_) {
device_win->Update(*device_state);
}
}
}
}
base::WeakPtr<BluetoothAdapter> BluetoothAdapterWin::GetWeakPtr() {
return weak_ptr_factory_.GetWeakPtr();
}
// BluetoothAdapterWin should override SetPowered() instead.
bool BluetoothAdapterWin::SetPoweredImpl(bool powered) {
NOTREACHED();
}
void BluetoothAdapterWin::UpdateFilter(
std::unique_ptr<BluetoothDiscoveryFilter> discovery_filter,
DiscoverySessionResultCallback callback) {
DCHECK(discovery_status_ == DISCOVERING ||
discovery_status_ == DISCOVERY_STARTING);
if (discovery_status_ == DISCOVERING) {
std::move(callback).Run(false,
UMABluetoothDiscoverySessionOutcome::SUCCESS);
return;
}
}
void BluetoothAdapterWin::StartScanWithFilter(
std::unique_ptr<BluetoothDiscoveryFilter> discovery_filter,
DiscoverySessionResultCallback callback) {
discovery_changed_callback_ = std::move(callback);
MaybePostStartDiscoveryTask();
}
void BluetoothAdapterWin::StopScan(DiscoverySessionResultCallback callback) {
if (discovery_status_ == NOT_DISCOVERING) {
std::move(callback).Run(/*is_error=*/true,
UMABluetoothDiscoverySessionOutcome::NOT_ACTIVE);
return;
}
discovery_changed_callback_ = std::move(callback);
MaybePostStopDiscoveryTask();
}
void BluetoothAdapterWin::Initialize(base::OnceClosure init_callback) {
init_callback_ = std::move(init_callback);
ui_task_runner_ = base::SingleThreadTaskRunner::GetCurrentDefault();
socket_thread_ = BluetoothSocketThread::Get();
task_manager_ =
base::MakeRefCounted<BluetoothTaskManagerWin>(ui_task_runner_);
task_manager_->AddObserver(this);
task_manager_->Initialize();
}
void BluetoothAdapterWin::InitForTest(
base::OnceClosure init_callback,
std::unique_ptr<win::BluetoothClassicWrapper> classic_wrapper,
scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner,
scoped_refptr<base::SequencedTaskRunner> bluetooth_task_runner) {
init_callback_ = std::move(init_callback);
ui_task_runner_ = ui_task_runner;
if (!ui_task_runner_)
ui_task_runner_ = base::SingleThreadTaskRunner::GetCurrentDefault();
task_manager_ = BluetoothTaskManagerWin::CreateForTesting(
std::move(classic_wrapper), ui_task_runner_);
task_manager_->AddObserver(this);
task_manager_->InitializeWithBluetoothTaskRunner(bluetooth_task_runner);
}
void BluetoothAdapterWin::MaybePostStartDiscoveryTask() {
if (discovery_status_ == NOT_DISCOVERING) {
discovery_status_ = DISCOVERY_STARTING;
task_manager_->PostStartDiscoveryTask();
}
}
void BluetoothAdapterWin::MaybePostStopDiscoveryTask() {
if (discovery_status_ != DISCOVERING)
return;
discovery_status_ = DISCOVERY_STOPPING;
task_manager_->PostStopDiscoveryTask();
}
} // namespace device
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