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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_factory.h"
#include <memory>
#include <utility>
#include <vector>
#include "base/functional/bind.h"
#include "base/functional/callback_helpers.h"
#include "base/memory/ptr_util.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "base/no_destructor.h"
#include "build/build_config.h"
#include "device/bluetooth/bluetooth_adapter.h"
#if BUILDFLAG(IS_APPLE)
#include "base/mac/mac_util.h"
#endif
#if BUILDFLAG(IS_WIN)
#include "device/bluetooth/bluetooth_adapter_win.h"
#endif
namespace device {
BluetoothAdapterFactory::BluetoothAdapterFactory() = default;
BluetoothAdapterFactory::~BluetoothAdapterFactory() = default;
// static
BluetoothAdapterFactory* BluetoothAdapterFactory::Get() {
static base::NoDestructor<BluetoothAdapterFactory> factory;
return factory.get();
}
// static
bool BluetoothAdapterFactory::IsBluetoothSupported() {
// SetAdapterForTesting() may be used to provide a test or mock adapter
// instance even on platforms that would otherwise not support it.
if (Get()->adapter_)
return true;
#if BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_WIN) || BUILDFLAG(IS_LINUX) || \
BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_APPLE)
return true;
#else
return false;
#endif
}
bool BluetoothAdapterFactory::IsLowEnergySupported() {
if (override_values_) {
return override_values_->GetLESupported();
}
#if BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_LINUX) || \
BUILDFLAG(IS_APPLE) || BUILDFLAG(IS_WIN)
return true;
#else
return false;
#endif
}
void BluetoothAdapterFactory::GetAdapter(AdapterCallback callback) {
DCHECK(IsBluetoothSupported());
if (!adapter_) {
adapter_callbacks_.push_back(std::move(callback));
adapter_under_initialization_ = BluetoothAdapter::CreateAdapter();
adapter_ = adapter_under_initialization_->GetWeakPtr();
adapter_->Initialize(base::BindOnce(
&BluetoothAdapterFactory::AdapterInitialized, base::Unretained(this)));
return;
}
if (!adapter_->IsInitialized()) {
adapter_callbacks_.push_back(std::move(callback));
return;
}
std::move(callback).Run(scoped_refptr<BluetoothAdapter>(adapter_.get()));
}
void BluetoothAdapterFactory::GetClassicAdapter(AdapterCallback callback) {
#if BUILDFLAG(IS_WIN)
DCHECK(IsBluetoothSupported());
if (!classic_adapter_) {
classic_adapter_callbacks_.push_back(std::move(callback));
classic_adapter_under_initialization_ =
BluetoothAdapterWin::CreateClassicAdapter();
classic_adapter_ = classic_adapter_under_initialization_->GetWeakPtr();
classic_adapter_->Initialize(
base::BindOnce(&BluetoothAdapterFactory::ClassicAdapterInitialized,
base::Unretained(this)));
return;
}
if (!classic_adapter_->IsInitialized()) {
classic_adapter_callbacks_.push_back(std::move(callback));
return;
}
std::move(callback).Run(
scoped_refptr<BluetoothAdapter>(classic_adapter_.get()));
#else
GetAdapter(std::move(callback));
#endif // BUILDFLAG(IS_WIN)
}
#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
// static
void BluetoothAdapterFactory::Shutdown() {
if (Get()->adapter_)
Get()->adapter_->Shutdown();
}
#endif
// static
void BluetoothAdapterFactory::SetAdapterForTesting(
scoped_refptr<BluetoothAdapter> adapter) {
Get()->adapter_ = adapter->GetWeakPtrForTesting();
if (!adapter->IsInitialized())
Get()->adapter_under_initialization_ = adapter;
#if BUILDFLAG(IS_WIN)
Get()->classic_adapter_ = adapter->GetWeakPtrForTesting();
#endif
}
// static
bool BluetoothAdapterFactory::HasSharedInstanceForTesting() {
return Get()->adapter_ != nullptr;
}
#if BUILDFLAG(IS_CHROMEOS)
// static
void BluetoothAdapterFactory::SetBleScanParserCallback(
BleScanParserCallback callback) {
Get()->ble_scan_parser_ = callback;
}
// static
BluetoothAdapterFactory::BleScanParserCallback
BluetoothAdapterFactory::GetBleScanParserCallback() {
return Get()->ble_scan_parser_;
}
#endif // BUILDFLAG(IS_CHROMEOS)
BluetoothAdapterFactory::GlobalOverrideValues::GlobalOverrideValues() = default;
BluetoothAdapterFactory::GlobalOverrideValues::~GlobalOverrideValues() =
default;
base::WeakPtr<BluetoothAdapterFactory::GlobalOverrideValues>
BluetoothAdapterFactory::GlobalOverrideValues::GetWeakPtr() {
return weak_ptr_factory_.GetWeakPtr();
}
std::unique_ptr<BluetoothAdapterFactory::GlobalOverrideValues>
BluetoothAdapterFactory::InitGlobalOverrideValues() {
auto v = std::make_unique<BluetoothAdapterFactory::GlobalOverrideValues>();
override_values_ = v->GetWeakPtr();
return v;
}
void BluetoothAdapterFactory::AdapterInitialized() {
DCHECK(adapter_);
DCHECK(adapter_under_initialization_);
// Move |adapter_under_initialization_| and |adapter_callbacks_| to avoid
// potential re-entrancy issues while looping over the callbacks.
scoped_refptr<BluetoothAdapter> adapter =
std::move(adapter_under_initialization_);
std::vector<AdapterCallback> callbacks = std::move(adapter_callbacks_);
for (auto& callback : callbacks)
std::move(callback).Run(adapter);
}
#if BUILDFLAG(IS_WIN)
void BluetoothAdapterFactory::ClassicAdapterInitialized() {
DCHECK(classic_adapter_);
DCHECK(classic_adapter_under_initialization_);
// Move |adapter_under_initialization_| and |adapter_callbacks_| to avoid
// potential re-entrancy issues while looping over the callbacks.
scoped_refptr<BluetoothAdapter> adapter =
std::move(classic_adapter_under_initialization_);
std::vector<AdapterCallback> callbacks =
std::move(classic_adapter_callbacks_);
for (auto& callback : callbacks)
std::move(callback).Run(adapter);
}
#endif // BUILDFLAG(IS_WIN)
} // namespace device
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