device/bluetooth/bluetooth_adapter_factory.h

   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 "base/callback.h"
   9 #include "base/memory/ref_counted.h"
  10 #include "device/bluetooth/bluetooth_adapter.h"
  11
  12 namespace device {
  13
  14 // A factory class for building a Bluetooth adapter on platforms where Bluetooth
  15 // is available.
  16 class BluetoothAdapterFactory {
  17  public:
  18   typedef base::Callback<void(scoped_refptr<BluetoothAdapter> adapter)>
  19       AdapterCallback;
  20
  21   // Returns true if the Bluetooth adapter is available for the current
  22   // platform.
  23   static bool IsBluetoothAdapterAvailable();
  24
  25   // Returns the shared instance of the default adapter, creating and
  26   // initializing it if necessary. |callback| is called with the adapter
  27   // instance passed only once the adapter is fully initialized and ready to
  28   // use.
  29   static void GetAdapter(const AdapterCallback& callback);
  30
  31   // Sets the shared instance of the default adapter for testing purposes only,
  32   // no reference is retained after completion of the call, removing the last
  33   // reference will reset the factory.
  34   static void SetAdapterForTesting(scoped_refptr<BluetoothAdapter> adapter);
  35
  36   // Returns true iff the implementation has a (non-NULL) shared instance of the
  37   // adapter. Exposed for testing.
  38   static bool HasSharedInstanceForTesting();
  39 };
  40
  41 }  // namespace device
  42
  43 #endif  // DEVICE_BLUETOOTH_BLUETOOTH_ADAPTER_FACTORY_H_