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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef COMPONENTS_PROXIMITY_AUTH_BLUETOOTH_CONNECTION_FINDER_H | 5 #ifndef COMPONENTS_PROXIMITY_AUTH_BLUETOOTH_CONNECTION_FINDER_H |
6 #define COMPONENTS_PROXIMITY_AUTH_BLUETOOTH_CONNECTION_FINDER_H | 6 #define COMPONENTS_PROXIMITY_AUTH_BLUETOOTH_CONNECTION_FINDER_H |
7 | 7 |
8 #include "base/callback.h" | 8 #include "base/callback.h" |
9 #include "base/macros.h" | 9 #include "base/macros.h" |
10 #include "base/memory/ref_counted.h" | 10 #include "base/memory/ref_counted.h" |
11 #include "base/memory/scoped_ptr.h" | 11 #include "base/memory/scoped_ptr.h" |
12 #include "base/memory/weak_ptr.h" | 12 #include "base/memory/weak_ptr.h" |
13 #include "base/time/time.h" | 13 #include "base/time/time.h" |
14 #include "components/proximity_auth/bluetooth_util.h" | |
14 #include "components/proximity_auth/connection_finder.h" | 15 #include "components/proximity_auth/connection_finder.h" |
15 #include "components/proximity_auth/connection_observer.h" | 16 #include "components/proximity_auth/connection_observer.h" |
16 #include "components/proximity_auth/remote_device.h" | 17 #include "components/proximity_auth/remote_device.h" |
17 #include "device/bluetooth/bluetooth_adapter.h" | 18 #include "device/bluetooth/bluetooth_adapter.h" |
18 #include "device/bluetooth/bluetooth_uuid.h" | 19 #include "device/bluetooth/bluetooth_uuid.h" |
19 | 20 |
20 namespace proximity_auth { | 21 namespace proximity_auth { |
21 | 22 |
22 class BluetoothConnection; | 23 class BluetoothConnection; |
23 | 24 |
24 // This ConnectionFinder implementation tries to find a Bluetooth connection to | 25 // This ConnectionFinder implementation tries to find a Bluetooth connection to |
25 // the remote device by polling at a fixed interval. | 26 // the remote device by polling at a fixed interval. |
26 class BluetoothConnectionFinder : public ConnectionFinder, | 27 class BluetoothConnectionFinder : public ConnectionFinder, |
27 public ConnectionObserver, | 28 public ConnectionObserver, |
28 public device::BluetoothAdapter::Observer { | 29 public device::BluetoothAdapter::Observer { |
29 public: | 30 public: |
30 BluetoothConnectionFinder(const RemoteDevice& remote_device, | 31 BluetoothConnectionFinder(const RemoteDevice& remote_device, |
31 const device::BluetoothUUID& uuid, | 32 const device::BluetoothUUID& uuid, |
32 const base::TimeDelta& polling_interval); | 33 const base::TimeDelta& polling_interval); |
33 ~BluetoothConnectionFinder() override; | 34 ~BluetoothConnectionFinder() override; |
34 | 35 |
35 // ConnectionFinder: | 36 // ConnectionFinder: |
36 void Find(const ConnectionCallback& connection_callback) override; | 37 void Find(const ConnectionCallback& connection_callback) override; |
37 | 38 |
38 protected: | 39 protected: |
39 // Exposed for mocking out the connection in tests. | 40 // Exposed for mocking out the connection in tests. |
40 virtual scoped_ptr<Connection> CreateConnection(); | 41 virtual scoped_ptr<Connection> CreateConnection(); |
41 | 42 |
43 // Calls bluetooth_util::SeekDeviceByAddress. Exposed for testing, as this | |
44 // utility function is platform dependent. | |
45 virtual void SeekDeviceByAddress( | |
46 const std::string& bluetooth_address, | |
47 const base::Closure& callback, | |
48 const bluetooth_util::ErrorCallback& error_callback); | |
49 | |
42 // BluetoothAdapter::Observer: | 50 // BluetoothAdapter::Observer: |
43 void AdapterPresentChanged(device::BluetoothAdapter* adapter, | 51 void AdapterPresentChanged(device::BluetoothAdapter* adapter, |
44 bool present) override; | 52 bool present) override; |
45 void AdapterPoweredChanged(device::BluetoothAdapter* adapter, | 53 void AdapterPoweredChanged(device::BluetoothAdapter* adapter, |
46 bool powered) override; | 54 bool powered) override; |
47 | 55 |
48 private: | 56 private: |
49 // Returns true iff the Bluetooth adapter is ready to make connections. | 57 // Returns true iff the Bluetooth adapter is ready to make connections. |
50 bool IsReadyToPoll(); | 58 bool IsReadyToPoll(); |
51 | 59 |
52 // Attempts to connect to the |remote_device_| if the system is ready for | 60 // Attempts to connect to the |remote_device_| if the system is ready for |
53 // another iteration of polling. | 61 // another iteration of polling. |
54 void PollIfReady(); | 62 void PollIfReady(); |
55 | 63 |
56 // Wrapper around |PollIfReady()| that can be posted as a delayed task. | 64 // Posts a delayed task to call |PollIfReady|. |OnDelayedPoll()| will be |
57 void DelayedPollIfReady(); | 65 // called when the task fires. |
66 void PostDelayedPoll(); | |
67 void OnDelayedPoll(); | |
68 | |
69 // Callbacks for bluetooth_util::SeekDeviceByAddress(). | |
70 void OnSeekedDeviceByAddress(); | |
71 void OnSeekedDeviceByAddressError(const std::string& error_message); | |
58 | 72 |
59 // Unregisters |this| instance as an observer from all objects that it might | 73 // Unregisters |this| instance as an observer from all objects that it might |
60 // have registered with. | 74 // have registered with. |
61 void UnregisterAsObserver(); | 75 void UnregisterAsObserver(); |
62 | 76 |
63 // Callback to be called when the Bluetooth adapter is initialized. | 77 // Callback to be called when the Bluetooth adapter is initialized. |
64 void OnAdapterInitialized(scoped_refptr<device::BluetoothAdapter> adapter); | 78 void OnAdapterInitialized(scoped_refptr<device::BluetoothAdapter> adapter); |
65 | 79 |
66 // ConnectionObserver: | 80 // ConnectionObserver: |
67 void OnConnectionStatusChanged(Connection* connection, | 81 void OnConnectionStatusChanged(Connection* connection, |
68 Connection::Status old_status, | 82 Connection::Status old_status, |
69 Connection::Status new_status) override; | 83 Connection::Status new_status) override; |
70 | 84 |
85 // Used to invokes |connection_callback_| asynchronously, decoupling the | |
sacomoto
2015/08/10 19:40:28
nit: s/invokes/invoke/
Tim Song
2015/08/10 22:17:55
Done.
| |
86 // callback invocation from the ConnectionObserver callstack. | |
87 void InvokeCallbackAsync(); | |
88 | |
71 // The remote device to connect to. | 89 // The remote device to connect to. |
72 const RemoteDevice remote_device_; | 90 const RemoteDevice remote_device_; |
73 | 91 |
74 // The UUID of the service on the remote device. | 92 // The UUID of the service on the remote device. |
75 const device::BluetoothUUID uuid_; | 93 const device::BluetoothUUID uuid_; |
76 | 94 |
77 // The time to wait between polling attempts. | 95 // The time to wait between polling attempts. |
78 const base::TimeDelta polling_interval_; | 96 const base::TimeDelta polling_interval_; |
79 | 97 |
80 // Records the time at which the finder began searching for connections. | 98 // Records the time at which the finder began searching for connections. |
(...skipping 17 matching lines...) Expand all Loading... | |
98 DISALLOW_COPY_AND_ASSIGN(BluetoothConnectionFinder); | 116 DISALLOW_COPY_AND_ASSIGN(BluetoothConnectionFinder); |
99 }; | 117 }; |
100 | 118 |
101 // TODO(isherman): Make sure to wire up the controller to listen for screen lock | 119 // TODO(isherman): Make sure to wire up the controller to listen for screen lock |
102 // state change events, and create or destroy the connection finder as | 120 // state change events, and create or destroy the connection finder as |
103 // appropriate. | 121 // appropriate. |
104 | 122 |
105 } // namespace proximity_auth | 123 } // namespace proximity_auth |
106 | 124 |
107 #endif // COMPONENTS_PROXIMITY_AUTH_BLUETOOTH_CONNECTION_FINDER_H | 125 #endif // COMPONENTS_PROXIMITY_AUTH_BLUETOOTH_CONNECTION_FINDER_H |
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