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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 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 | 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 CHROME_BROWSER_EXTENSIONS_API_BRAILLE_DISPLAY_PRIVATE_BRAILLE_CONTROLLER
_H_ | 5 #ifndef CHROME_BROWSER_EXTENSIONS_API_BRAILLE_DISPLAY_PRIVATE_BRAILLE_CONTROLLER
_H_ |
6 #define CHROME_BROWSER_EXTENSIONS_API_BRAILLE_DISPLAY_PRIVATE_BRAILLE_CONTROLLER
_H_ | 6 #define CHROME_BROWSER_EXTENSIONS_API_BRAILLE_DISPLAY_PRIVATE_BRAILLE_CONTROLLER
_H_ |
7 | 7 |
8 #include <string> | 8 #include <vector> |
9 | 9 |
10 #include "base/basictypes.h" | 10 #include "base/basictypes.h" |
11 #include "base/callback_forward.h" | 11 #include "base/callback_forward.h" |
12 #include "base/memory/scoped_ptr.h" | 12 #include "base/memory/scoped_ptr.h" |
13 #include "base/values.h" | 13 #include "base/values.h" |
14 #include "chrome/common/extensions/api/braille_display_private.h" | 14 #include "chrome/common/extensions/api/braille_display_private.h" |
15 | 15 |
16 namespace extensions { | 16 namespace extensions { |
17 namespace api { | 17 namespace api { |
18 namespace braille_display_private { | 18 namespace braille_display_private { |
19 class BrailleObserver; | 19 class BrailleObserver; |
20 | 20 |
21 // Singleton class that controls the braille display. | 21 // Singleton class that controls the braille display. |
22 class BrailleController { | 22 class BrailleController { |
23 public: | 23 public: |
24 static BrailleController* GetInstance(); | 24 static BrailleController* GetInstance(); |
25 | 25 |
26 virtual scoped_ptr<DisplayState> GetDisplayState() = 0; | 26 virtual scoped_ptr<DisplayState> GetDisplayState() = 0; |
27 virtual void WriteDots(const std::string& cells) = 0; | 27 virtual void WriteDots(const std::vector<char>& cells) = 0; |
28 virtual void AddObserver(BrailleObserver* observer) = 0; | 28 virtual void AddObserver(BrailleObserver* observer) = 0; |
29 virtual void RemoveObserver(BrailleObserver* observer) = 0; | 29 virtual void RemoveObserver(BrailleObserver* observer) = 0; |
30 | 30 |
31 protected: | 31 protected: |
32 BrailleController(); | 32 BrailleController(); |
33 virtual ~BrailleController(); | 33 virtual ~BrailleController(); |
34 | 34 |
35 private: | 35 private: |
36 DISALLOW_COPY_AND_ASSIGN(BrailleController); | 36 DISALLOW_COPY_AND_ASSIGN(BrailleController); |
37 }; | 37 }; |
38 | 38 |
39 // Observer for events from the BrailleController | 39 // Observer for events from the BrailleController |
40 class BrailleObserver { | 40 class BrailleObserver { |
41 public: | 41 public: |
42 virtual void OnBrailleDisplayStateChanged( | 42 virtual void OnBrailleDisplayStateChanged( |
43 const DisplayState& display_state) {} | 43 const DisplayState& display_state) {} |
44 virtual void OnBrailleKeyEvent(const KeyEvent& event) {} | 44 virtual void OnBrailleKeyEvent(const KeyEvent& event) {} |
45 }; | 45 }; |
46 | 46 |
47 } // namespace braille_display_private | 47 } // namespace braille_display_private |
48 } // namespace api | 48 } // namespace api |
49 } // namespace extensions | 49 } // namespace extensions |
50 | 50 |
51 #endif // CHROME_BROWSER_EXTENSIONS_API_BRAILLE_DISPLAY_PRIVATE_BRAILLE_CONTROL
LER_H_ | 51 #endif // CHROME_BROWSER_EXTENSIONS_API_BRAILLE_DISPLAY_PRIVATE_BRAILLE_CONTROL
LER_H_ |
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