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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 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 CONTENT_BROWSER_GAMEPAD_GAMEPAD_SERVICE_H | 5 #ifndef CONTENT_BROWSER_GAMEPAD_GAMEPAD_SERVICE_H |
6 #define CONTENT_BROWSER_GAMEPAD_GAMEPAD_SERVICE_H | 6 #define CONTENT_BROWSER_GAMEPAD_GAMEPAD_SERVICE_H |
7 | 7 |
8 #include "base/basictypes.h" | 8 #include "base/basictypes.h" |
9 #include "base/callback_forward.h" | 9 #include "base/callback_forward.h" |
10 #include "base/memory/scoped_ptr.h" | 10 #include "base/memory/scoped_ptr.h" |
11 #include "base/memory/shared_memory.h" | 11 #include "base/memory/shared_memory.h" |
12 #include "base/memory/singleton.h" | 12 #include "base/memory/singleton.h" |
13 #include "base/threading/thread_checker.h" | 13 #include "base/threading/thread_checker.h" |
| 14 #include "base/time/time.h" |
14 #include "content/common/content_export.h" | 15 #include "content/common/content_export.h" |
15 | 16 |
16 namespace content { | 17 namespace content { |
17 | 18 |
18 class GamepadDataFetcher; | 19 class GamepadDataFetcher; |
19 class GamepadProvider; | 20 class GamepadProvider; |
20 class GamepadServiceTestConstructor; | 21 class GamepadServiceTestConstructor; |
21 class RenderProcessHost; | 22 class RenderProcessHost; |
22 | 23 |
23 // Owns the GamepadProvider (the background polling thread) and keeps track of | 24 // Owns the GamepadProvider (the background polling thread) and keeps track of |
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37 // Removes a consumer. Should be matched with an AddConsumer call. | 38 // Removes a consumer. Should be matched with an AddConsumer call. |
38 // | 39 // |
39 // Must be called on the I/O thread. | 40 // Must be called on the I/O thread. |
40 void RemoveConsumer(); | 41 void RemoveConsumer(); |
41 | 42 |
42 // Registers the given closure for calling when the user has interacted with | 43 // Registers the given closure for calling when the user has interacted with |
43 // the device. This callback will only be issued once. Should only be called | 44 // the device. This callback will only be issued once. Should only be called |
44 // while a consumer is active. | 45 // while a consumer is active. |
45 void RegisterForUserGesture(const base::Closure& closure); | 46 void RegisterForUserGesture(const base::Closure& closure); |
46 | 47 |
| 48 // Setter amd getter for the last Gamepad Data access timestamp accessed by |
| 49 // the consumer |
| 50 void SetGamepadAccessTimestamp(base::Time); |
| 51 base::Time GetGamepadAccessTimestamp(); |
| 52 |
| 53 // Returns the state of polling thread regarding Gamepad Data reads via |
| 54 // low-level data fetcher i.e. Paused or Resuming |
| 55 bool GetPollState(); |
| 56 |
| 57 // Manages pause and resume state of polling thread in GamepadProvider |
| 58 // |provider_|. |
| 59 void Pause(); |
| 60 void Resume(); |
| 61 |
47 // Returns the shared memory handle of the gamepad data duplicated into the | 62 // Returns the shared memory handle of the gamepad data duplicated into the |
48 // given process. | 63 // given process. |
49 base::SharedMemoryHandle GetSharedMemoryHandleForProcess( | 64 base::SharedMemoryHandle GetSharedMemoryHandleForProcess( |
50 base::ProcessHandle handle); | 65 base::ProcessHandle handle); |
51 | 66 |
52 // Stop/join with the background thread in GamepadProvider |provider_|. | 67 // Stop/join with the background thread in GamepadProvider |provider_|. |
53 void Terminate(); | 68 void Terminate(); |
54 | 69 |
55 private: | 70 private: |
56 friend struct DefaultSingletonTraits<GamepadService>; | 71 friend struct DefaultSingletonTraits<GamepadService>; |
57 friend class GamepadServiceTestConstructor; | 72 friend class GamepadServiceTestConstructor; |
58 | 73 |
59 GamepadService(); | 74 GamepadService(); |
60 | 75 |
61 // Constructor for testing. This specifies the data fetcher to use for a | 76 // Constructor for testing. This specifies the data fetcher to use for a |
62 // provider, bypassing the default platform one. | 77 // provider, bypassing the default platform one. |
63 GamepadService(scoped_ptr<GamepadDataFetcher> fetcher); | 78 GamepadService(scoped_ptr<GamepadDataFetcher> fetcher); |
64 | 79 |
65 virtual ~GamepadService(); | 80 virtual ~GamepadService(); |
66 | 81 |
67 int num_readers_; | 82 int num_readers_; |
| 83 |
| 84 // Maintans the timestamp for last Gamepad Data access |
| 85 base::Time gamepad_access_timestamp_; |
| 86 |
68 scoped_ptr<GamepadProvider> provider_; | 87 scoped_ptr<GamepadProvider> provider_; |
69 | 88 |
70 base::ThreadChecker thread_checker_; | 89 base::ThreadChecker thread_checker_; |
71 | 90 |
72 DISALLOW_COPY_AND_ASSIGN(GamepadService); | 91 DISALLOW_COPY_AND_ASSIGN(GamepadService); |
73 }; | 92 }; |
74 | 93 |
75 } // namespace content | 94 } // namespace content |
76 | 95 |
77 #endif // CONTENT_BROWSER_GAMEPAD_GAMEPAD_SERVICE_H_ | 96 #endif // CONTENT_BROWSER_GAMEPAD_GAMEPAD_SERVICE_H_ |
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