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// Copyright 2016 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_descriptor_android.h"
#include <memory>
#include "base/android/jni_android.h"
#include "base/android/jni_array.h"
#include "base/android/jni_string.h"
#include "base/functional/bind.h"
#include "base/location.h"
#include "base/notimplemented.h"
#include "base/task/single_thread_task_runner.h"
#include "device/bluetooth/bluetooth_remote_gatt_service_android.h"
// Must come after all headers that specialize FromJniType() / ToJniType().
#include "device/bluetooth/jni_headers/ChromeBluetoothRemoteGattDescriptor_jni.h"
using base::android::AttachCurrentThread;
using base::android::ConvertJavaStringToUTF8;
using base::android::JavaParamRef;
using base::android::JavaRef;
namespace device {
// static
std::unique_ptr<BluetoothRemoteGattDescriptorAndroid>
BluetoothRemoteGattDescriptorAndroid::Create(
const std::string& instance_id,
const JavaRef<jobject>& /* BluetoothGattDescriptorWrapper */
bluetooth_gatt_descriptor_wrapper,
const JavaRef<jobject>& /* chromeBluetoothDevice */
chrome_bluetooth_device) {
std::unique_ptr<BluetoothRemoteGattDescriptorAndroid> descriptor(
new BluetoothRemoteGattDescriptorAndroid(instance_id));
descriptor->j_descriptor_.Reset(
Java_ChromeBluetoothRemoteGattDescriptor_create(
AttachCurrentThread(), reinterpret_cast<intptr_t>(descriptor.get()),
bluetooth_gatt_descriptor_wrapper, chrome_bluetooth_device));
return descriptor;
}
BluetoothRemoteGattDescriptorAndroid::~BluetoothRemoteGattDescriptorAndroid() {
Java_ChromeBluetoothRemoteGattDescriptor_onBluetoothRemoteGattDescriptorAndroidDestruction(
AttachCurrentThread(), j_descriptor_);
}
base::android::ScopedJavaLocalRef<jobject>
BluetoothRemoteGattDescriptorAndroid::GetJavaObject() {
return base::android::ScopedJavaLocalRef<jobject>(j_descriptor_);
}
std::string BluetoothRemoteGattDescriptorAndroid::GetIdentifier() const {
return instance_id_;
}
BluetoothUUID BluetoothRemoteGattDescriptorAndroid::GetUUID() const {
return device::BluetoothUUID(
ConvertJavaStringToUTF8(Java_ChromeBluetoothRemoteGattDescriptor_getUUID(
AttachCurrentThread(), j_descriptor_)));
}
const std::vector<uint8_t>& BluetoothRemoteGattDescriptorAndroid::GetValue()
const {
return value_;
}
BluetoothRemoteGattCharacteristic*
BluetoothRemoteGattDescriptorAndroid::GetCharacteristic() const {
NOTIMPLEMENTED();
return nullptr;
}
BluetoothRemoteGattCharacteristic::Permissions
BluetoothRemoteGattDescriptorAndroid::GetPermissions() const {
NOTIMPLEMENTED();
return 0;
}
void BluetoothRemoteGattDescriptorAndroid::ReadRemoteDescriptor(
ValueCallback callback) {
if (read_pending_ || write_pending_) {
base::SingleThreadTaskRunner::GetCurrentDefault()->PostTask(
FROM_HERE,
base::BindOnce(std::move(callback),
BluetoothGattService::GattErrorCode::kInProgress,
/*value=*/std::vector<uint8_t>()));
return;
}
if (!Java_ChromeBluetoothRemoteGattDescriptor_readRemoteDescriptor(
AttachCurrentThread(), j_descriptor_)) {
base::SingleThreadTaskRunner::GetCurrentDefault()->PostTask(
FROM_HERE, base::BindOnce(std::move(callback),
BluetoothGattService::GattErrorCode::kFailed,
/*value=*/std::vector<uint8_t>()));
return;
}
read_pending_ = true;
read_callback_ = std::move(callback);
}
void BluetoothRemoteGattDescriptorAndroid::WriteRemoteDescriptor(
base::span<const uint8_t> new_value,
base::OnceClosure callback,
ErrorCallback error_callback) {
if (read_pending_ || write_pending_) {
base::SingleThreadTaskRunner::GetCurrentDefault()->PostTask(
FROM_HERE,
base::BindOnce(std::move(error_callback),
BluetoothGattService::GattErrorCode::kInProgress));
return;
}
JNIEnv* env = AttachCurrentThread();
if (!Java_ChromeBluetoothRemoteGattDescriptor_writeRemoteDescriptor(
env, j_descriptor_, base::android::ToJavaByteArray(env, new_value))) {
base::SingleThreadTaskRunner::GetCurrentDefault()->PostTask(
FROM_HERE,
base::BindOnce(
std::move(error_callback),
BluetoothRemoteGattServiceAndroid::GattErrorCode::kFailed));
return;
}
write_pending_ = true;
write_callback_ = std::move(callback);
write_error_callback_ = std::move(error_callback);
}
void BluetoothRemoteGattDescriptorAndroid::OnRead(
JNIEnv* env,
const JavaParamRef<jobject>& jcaller,
int32_t status,
const JavaParamRef<jbyteArray>& value) {
read_pending_ = false;
// Clear callbacks before calling to avoid reentrancy issues.
ValueCallback read_callback = std::move(read_callback_);
if (!read_callback)
return;
if (status == 0) { // android.bluetooth.BluetoothGatt.GATT_SUCCESS
base::android::JavaByteArrayToByteVector(env, value, &value_);
std::move(read_callback).Run(/*error_code=*/std::nullopt, value_);
// TODO(crbug.com/40455639): Call GattDescriptorValueChanged.
} else {
std::move(read_callback)
.Run(BluetoothRemoteGattServiceAndroid::GetGattErrorCode(status),
/*value=*/std::vector<uint8_t>());
}
}
void BluetoothRemoteGattDescriptorAndroid::OnWrite(
JNIEnv* env,
const JavaParamRef<jobject>& jcaller,
int32_t status) {
write_pending_ = false;
// Clear callbacks before calling to avoid reentrancy issues.
base::OnceClosure write_callback = std::move(write_callback_);
ErrorCallback write_error_callback = std::move(write_error_callback_);
if (status == 0 // android.bluetooth.BluetoothGatt.GATT_SUCCESS
&& !write_callback.is_null()) {
std::move(write_callback).Run();
// TODO(crbug.com/40455639): Call GattDescriptorValueChanged.
} else if (!write_error_callback.is_null()) {
std::move(write_error_callback)
.Run(BluetoothRemoteGattServiceAndroid::GetGattErrorCode(status));
}
}
BluetoothRemoteGattDescriptorAndroid::BluetoothRemoteGattDescriptorAndroid(
const std::string& instance_id)
: instance_id_(instance_id) {}
} // namespace device
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