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// Copyright 2018 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_remote_gatt_service_winrt.h"
#include <windows.foundation.collections.h>
#include <utility>
#include "base/logging.h"
#include "base/memory/ptr_util.h"
#include "base/notimplemented.h"
#include "base/strings/stringprintf.h"
#include "device/bluetooth/bluetooth_device.h"
#include "device/bluetooth/bluetooth_gatt_discoverer_winrt.h"
namespace device {
namespace {
using ABI::Windows::Devices::Bluetooth::GenericAttributeProfile::
IGattDeviceService;
using Microsoft::WRL::ComPtr;
} // namespace
// static
std::unique_ptr<BluetoothRemoteGattServiceWinrt>
BluetoothRemoteGattServiceWinrt::Create(
BluetoothDevice* device,
ComPtr<IGattDeviceService> gatt_service) {
DCHECK(gatt_service);
GUID guid;
HRESULT hr = gatt_service->get_Uuid(&guid);
if (FAILED(hr)) {
DVLOG(2) << "Getting UUID failed: " << logging::SystemErrorCodeToString(hr);
return nullptr;
}
uint16_t attribute_handle;
hr = gatt_service->get_AttributeHandle(&attribute_handle);
if (FAILED(hr)) {
DVLOG(2) << "Getting AttributeHandle failed: "
<< logging::SystemErrorCodeToString(hr);
return nullptr;
}
return base::WrapUnique(new BluetoothRemoteGattServiceWinrt(
device, std::move(gatt_service), BluetoothUUID(guid), attribute_handle));
}
BluetoothRemoteGattServiceWinrt::~BluetoothRemoteGattServiceWinrt() = default;
std::string BluetoothRemoteGattServiceWinrt::GetIdentifier() const {
return identifier_;
}
BluetoothUUID BluetoothRemoteGattServiceWinrt::GetUUID() const {
return uuid_;
}
bool BluetoothRemoteGattServiceWinrt::IsPrimary() const {
return true;
}
BluetoothDevice* BluetoothRemoteGattServiceWinrt::GetDevice() const {
return device_;
}
std::vector<BluetoothRemoteGattService*>
BluetoothRemoteGattServiceWinrt::GetIncludedServices() const {
NOTIMPLEMENTED();
return {};
}
void BluetoothRemoteGattServiceWinrt::UpdateCharacteristics(
BluetoothGattDiscovererWinrt* gatt_discoverer) {
const auto* gatt_characteristics =
gatt_discoverer->GetCharacteristics(attribute_handle_);
DCHECK(gatt_characteristics);
// Instead of clearing out |characteristics_| and creating each characteristic
// from scratch, we create a new map and move already existing characteristics
// into it in order to preserve pointer stability.
CharacteristicMap characteristics;
for (const auto& gatt_characteristic : *gatt_characteristics) {
auto characteristic = BluetoothRemoteGattCharacteristicWinrt::Create(
this, gatt_characteristic.Get());
if (!characteristic)
continue;
std::string identifier = characteristic->GetIdentifier();
auto iter = characteristics_.find(identifier);
if (iter != characteristics_.end()) {
iter = characteristics.emplace(std::move(*iter)).first;
} else {
iter = characteristics
.emplace(std::move(identifier), std::move(characteristic))
.first;
}
static_cast<BluetoothRemoteGattCharacteristicWinrt*>(iter->second.get())
->UpdateDescriptors(gatt_discoverer);
}
std::swap(characteristics, characteristics_);
SetDiscoveryComplete(true);
}
IGattDeviceService*
BluetoothRemoteGattServiceWinrt::GetDeviceServiceForTesting() {
return gatt_service_.Get();
}
// static
uint8_t BluetoothRemoteGattServiceWinrt::ToProtocolError(
GattErrorCode error_code) {
switch (error_code) {
case GattErrorCode::kUnknown:
return 0xF0;
case GattErrorCode::kFailed:
return 0x01;
case GattErrorCode::kInProgress:
return 0x09;
case GattErrorCode::kInvalidLength:
return 0x0D;
case GattErrorCode::kNotPermitted:
return 0x02;
case GattErrorCode::kNotAuthorized:
return 0x08;
case GattErrorCode::kNotPaired:
return 0x0F;
case GattErrorCode::kNotSupported:
return 0x06;
}
NOTREACHED();
}
BluetoothRemoteGattServiceWinrt::BluetoothRemoteGattServiceWinrt(
BluetoothDevice* device,
ComPtr<IGattDeviceService> gatt_service,
BluetoothUUID uuid,
uint16_t attribute_handle)
: device_(device),
gatt_service_(std::move(gatt_service)),
uuid_(std::move(uuid)),
attribute_handle_(attribute_handle),
identifier_(base::StringPrintf("%s/%s_%04x",
device_->GetIdentifier().c_str(),
uuid_.value().c_str(),
attribute_handle)) {}
} // namespace device
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