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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.
#ifndef DEVICE_BLUETOOTH_BLUETOOTH_REMOTE_GATT_CHARACTERISTIC_WINRT_H_
#define DEVICE_BLUETOOTH_BLUETOOTH_REMOTE_GATT_CHARACTERISTIC_WINRT_H_
#include <windows.devices.bluetooth.genericattributeprofile.h>
#include <wrl/client.h>
#include <stdint.h>
#include <memory>
#include <string>
#include <vector>
#include "base/functional/callback_forward.h"
#include "base/memory/raw_ptr.h"
#include "device/bluetooth/bluetooth_export.h"
#include "device/bluetooth/bluetooth_remote_gatt_characteristic.h"
#include "device/bluetooth/public/cpp/bluetooth_uuid.h"
namespace device {
class BluetoothRemoteGattDescriptor;
class BluetoothGattDiscovererWinrt;
class BluetoothRemoteGattService;
class DEVICE_BLUETOOTH_EXPORT BluetoothRemoteGattCharacteristicWinrt
: public BluetoothRemoteGattCharacteristic {
public:
static std::unique_ptr<BluetoothRemoteGattCharacteristicWinrt> Create(
BluetoothRemoteGattService* service,
Microsoft::WRL::ComPtr<ABI::Windows::Devices::Bluetooth::
GenericAttributeProfile::IGattCharacteristic>
characteristic);
BluetoothRemoteGattCharacteristicWinrt(
const BluetoothRemoteGattCharacteristicWinrt&) = delete;
BluetoothRemoteGattCharacteristicWinrt& operator=(
const BluetoothRemoteGattCharacteristicWinrt&) = delete;
~BluetoothRemoteGattCharacteristicWinrt() override;
// BluetoothGattCharacteristic:
std::string GetIdentifier() const override;
BluetoothUUID GetUUID() const override;
Properties GetProperties() const override;
Permissions GetPermissions() const override;
// BluetoothRemoteGattCharacteristic:
const std::vector<uint8_t>& GetValue() const override;
BluetoothRemoteGattService* GetService() const override;
void ReadRemoteCharacteristic(ValueCallback callback) override;
void WriteRemoteCharacteristic(base::span<const uint8_t> value,
WriteType write_type,
base::OnceClosure callback,
ErrorCallback error_callback) override;
void DeprecatedWriteRemoteCharacteristic(
base::span<const uint8_t> value,
base::OnceClosure callback,
ErrorCallback error_callback) override;
void UpdateDescriptors(BluetoothGattDiscovererWinrt* gatt_discoverer);
ABI::Windows::Devices::Bluetooth::GenericAttributeProfile::
IGattCharacteristic*
GetCharacteristicForTesting();
protected:
// BluetoothRemoteGattCharacteristic:
void SubscribeToNotifications(BluetoothRemoteGattDescriptor* ccc_descriptor,
base::OnceClosure callback,
ErrorCallback error_callback) override;
void UnsubscribeFromNotifications(
BluetoothRemoteGattDescriptor* ccc_descriptor,
base::OnceClosure callback,
ErrorCallback error_callback) override;
private:
struct PendingWriteCallbacks {
PendingWriteCallbacks(base::OnceClosure callback,
ErrorCallback error_callback);
~PendingWriteCallbacks();
base::OnceClosure callback;
ErrorCallback error_callback;
};
using PendingNotificationCallbacks = PendingWriteCallbacks;
BluetoothRemoteGattCharacteristicWinrt(
BluetoothRemoteGattService* service,
Microsoft::WRL::ComPtr<ABI::Windows::Devices::Bluetooth::
GenericAttributeProfile::IGattCharacteristic>
characteristic,
BluetoothUUID uuid,
Properties proporties,
uint16_t attribute_handle);
void WriteCccDescriptor(
ABI::Windows::Devices::Bluetooth::GenericAttributeProfile::
GattClientCharacteristicConfigurationDescriptorValue value,
base::OnceClosure callback,
ErrorCallback error_callback);
void OnReadValue(Microsoft::WRL::ComPtr<
ABI::Windows::Devices::Bluetooth::GenericAttributeProfile::
IGattReadResult> read_result);
void OnWriteValueWithResultAndOption(
Microsoft::WRL::ComPtr<ABI::Windows::Devices::Bluetooth::
GenericAttributeProfile::IGattWriteResult>
write_result);
void OnWriteCccDescriptor(
Microsoft::WRL::ComPtr<ABI::Windows::Devices::Bluetooth::
GenericAttributeProfile::IGattWriteResult>
write_result);
void OnWriteImpl(
Microsoft::WRL::ComPtr<ABI::Windows::Devices::Bluetooth::
GenericAttributeProfile::IGattWriteResult>
write_result,
std::unique_ptr<PendingWriteCallbacks> callbacks);
void OnValueChanged(
ABI::Windows::Devices::Bluetooth::GenericAttributeProfile::
IGattCharacteristic* characteristic,
ABI::Windows::Devices::Bluetooth::GenericAttributeProfile::
IGattValueChangedEventArgs* event_args);
bool RemoveValueChangedHandler();
raw_ptr<BluetoothRemoteGattService> service_;
Microsoft::WRL::ComPtr<ABI::Windows::Devices::Bluetooth::
GenericAttributeProfile::IGattCharacteristic>
characteristic_;
BluetoothUUID uuid_;
Properties properties_;
uint16_t attribute_handle_;
std::string identifier_;
std::vector<uint8_t> value_;
ValueCallback pending_read_callback_;
std::unique_ptr<PendingWriteCallbacks> pending_write_callbacks_;
std::unique_ptr<PendingNotificationCallbacks> pending_notification_callbacks_;
std::optional<EventRegistrationToken> value_changed_token_;
// The destructor runs callbacks. Methods can use |destructor_called_| to
// protect against reentrant calls to a partially deleted instance.
bool destructor_called_ = false;
base::WeakPtrFactory<BluetoothRemoteGattCharacteristicWinrt>
weak_ptr_factory_{this};
};
} // namespace device
#endif // DEVICE_BLUETOOTH_BLUETOOTH_REMOTE_GATT_CHARACTERISTIC_WINRT_H_
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