1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef DEVICE_BLUETOOTH_BLUETOOTH_ADAPTER_FACTORY_H_
6#define DEVICE_BLUETOOTH_BLUETOOTH_ADAPTER_FACTORY_H_
7
8#include <string>
9
10#include "base/callback.h"
11#include "base/memory/ref_counted.h"
12#include "device/bluetooth/bluetooth_adapter.h"
13
14namespace device {
15
16// BluetoothAdapterFactory is a class that contains static methods, which
17// instantiate either a specific Bluetooth adapter, or the generic "default
18// adapter" which may change depending on availability.
19class BluetoothAdapterFactory {
20 public:
21  typedef base::Callback<void(scoped_refptr<BluetoothAdapter> adapter)>
22      AdapterCallback;
23
24  // Returns true if the Bluetooth adapter is available for the current
25  // platform.
26  static bool IsBluetoothAdapterAvailable();
27
28  // Returns the shared instance of the default adapter, creating and
29  // initializing it if necessary. |callback| is called with the adapter
30  // instance passed only once the adapter is fully initialized and ready to
31  // use.
32  static void GetAdapter(const AdapterCallback& callback);
33
34  // Returns the shared instance of the adapter that has already been created,
35  // but may or may not have been initialized.
36  // It returns NULL if no adapter has been created at the time.
37  static scoped_refptr<BluetoothAdapter> MaybeGetAdapter();
38};
39
40}  // namespace device
41
42#endif  // DEVICE_BLUETOOTH_BLUETOOTH_ADAPTER_FACTORY_H_
43