1// Copyright 2013 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_NFC_NFC_ADAPTER_FACTORY_H_
6#define DEVICE_NFC_NFC_ADAPTER_FACTORY_H_
7
8#include "base/callback.h"
9#include "base/memory/ref_counted.h"
10#include "device/nfc/nfc_adapter.h"
11
12namespace device {
13
14// NfcAdapterFactory is a class that contains static methods, which
15// instantiate either a specific NFC adapter, or the generic "default
16// adapter" which may change depending on availability.
17class NfcAdapterFactory {
18 public:
19  typedef base::Callback<void(scoped_refptr<NfcAdapter>)> AdapterCallback;
20
21  // Returns true if NFC is available for the current platform.
22  static bool IsNfcAvailable();
23
24  // Returns the shared instance of the default adapter, creating and
25  // initializing it if necessary. |callback| is called with the adapter
26  // instance passed only once the adapter is fully initialized and ready to
27  // use.
28  static void GetAdapter(const AdapterCallback& callback);
29};
30
31}  // namespace device
32
33#endif  // DEVICE_NFC_NFC_ADAPTER_FACTORY_H_
34