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| 1 // Copyright 2014 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 COMPONENTS_PROXIMITY_AUTH_BLUETOOTH_CONNECTION_FINDER_H | |
| 6 #define COMPONENTS_PROXIMITY_AUTH_BLUETOOTH_CONNECTION_FINDER_H | |
| 7 | |
| 8 #include "base/callback.h" | |
| 9 #include "base/macros.h" | |
| 10 #include "base/memory/ref_counted.h" | |
| 11 #include "base/memory/scoped_ptr.h" | |
| 12 #include "base/memory/weak_ptr.h" | |
| 13 #include "base/time/time.h" | |
| 14 #include "components/proximity_auth/connection_finder.h" | |
| 15 #include "components/proximity_auth/connection_observer.h" | |
| 16 #include "components/proximity_auth/remote_device.h" | |
| 17 #include "device/bluetooth/bluetooth_adapter.h" | |
| 18 #include "device/bluetooth/bluetooth_uuid.h" | |
| 19 | |
| 20 namespace proximity_auth { | |
| 21 | |
| 22 class BluetoothConnection; | |
| 23 | |
| 24 // This ConnectionFinder implementation tries to find a Bluetooth connection to | |
| 25 // the remote device by polling at a fixed interval. | |
| 26 class BluetoothConnectionFinder : public ConnectionFinder, | |
| 27 public ConnectionObserver, | |
| 28 public device::BluetoothAdapter::Observer { | |
| 29 public: | |
| 30 BluetoothConnectionFinder(const RemoteDevice& remote_device, | |
| 31 const device::BluetoothUUID& uuid, | |
| 32 const base::TimeDelta& polling_interval); | |
| 33 virtual ~BluetoothConnectionFinder(); | |
| 34 | |
| 35 // ConnectionFinder: | |
| 36 virtual void Find(const ConnectionCallback& connection_callback) override; | |
| 37 | |
| 38 protected: | |
| 39 // Exposed for mocking out the connection in tests. | |
| 40 virtual scoped_ptr<Connection> CreateConnection(); | |
| 41 | |
| 42 // BluetoothAdapter::Observer: | |
| 43 virtual void AdapterPresentChanged(device::BluetoothAdapter* adapter, | |
| 44 bool present) override; | |
| 45 virtual void AdapterPoweredChanged(device::BluetoothAdapter* adapter, | |
| 46 bool powered) override; | |
| 47 | |
| 48 private: | |
| 49 // Returns true iff the Bluetooth adapter is ready to make connections. | |
| 50 bool IsReadyToPoll(); | |
| 51 | |
| 52 // Attempts to connect to the |remote_device_| if the system is ready for | |
| 53 // another iteration of polling. | |
| 54 void PollIfReady(); | |
| 55 | |
| 56 // Wrapper around |PollIfReady()| that can be posted as a delayed task. | |
| 57 void DelayedPollIfReady(); | |
| 58 | |
| 59 // Unregisters |this| instance as an observer from all objects that it might | |
| 60 // have registered with. | |
| 61 void UnregisterAsObserver(); | |
| 62 | |
| 63 // Callback to be called when the Bluetooth adapter is initialized. | |
| 64 void OnAdapterInitialized(scoped_refptr<device::BluetoothAdapter> adapter); | |
| 65 | |
| 66 // ConnectionObserver: | |
| 67 virtual void OnConnectionStatusChanged( | |
| 68 const Connection& connection, | |
| 69 Connection::Status old_status, | |
| 70 Connection::Status new_status) override; | |
| 71 | |
| 72 // The remote device to connect to. | |
| 73 const RemoteDevice remote_device_; | |
| 74 | |
| 75 // The UUID of the service on the remote device. | |
| 76 const device::BluetoothUUID uuid_; | |
| 77 | |
| 78 // The time to wait between polling attempts. | |
| 79 const base::TimeDelta polling_interval_; | |
| 80 | |
| 81 // Records the time at which the finder began searching for connections. | |
| 82 base::TimeTicks start_time_; | |
| 83 | |
| 84 // The callback that should be called upon a successful connection. | |
| 85 ConnectionCallback connection_callback_; | |
| 86 | |
| 87 // The Bluetooth adapter over which the Bluetooth connection will be made. | |
| 88 scoped_refptr<device::BluetoothAdapter> adapter_; | |
| 89 | |
| 90 // The Bluetooth connection that will be opened. | |
| 91 scoped_ptr<Connection> connection_; | |
| 92 | |
| 93 // Whether there is currently a polling task scheduled. | |
| 94 bool has_delayed_poll_scheduled_; | |
| 95 | |
| 96 // Used to schedule everything else. | |
| 97 base::WeakPtrFactory<BluetoothConnectionFinder> weak_ptr_factory_; | |
| 98 | |
| 99 DISALLOW_COPY_AND_ASSIGN(BluetoothConnectionFinder); | |
| 100 }; | |
| 101 | |
| 102 // TODO(isherman): Make sure to wire up the controller to listen for screen lock | |
| 103 // state change events, and create or destroy the connection finder as | |
| 104 // appropriate. | |
| 105 | |
| 106 } // namespace proximity_auth | |
| 107 | |
| 108 #endif // COMPONENTS_PROXIMITY_AUTH_BLUETOOTH_CONNECTION_FINDER_H | |
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Chromium Code Reviews
Issue 651073002:
Revert of [Easy Unlock] Port the BluetoothConnectionFinder class to native code. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master