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1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 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_CHROMEOS_AUDIO_AUDIO_DEVICES_PREF_HANDLER_IMPL_H_ | 5 #ifndef CHROME_BROWSER_CHROMEOS_AUDIO_AUDIO_DEVICES_PREF_HANDLER_IMPL_H_ |
6 #define CHROME_BROWSER_CHROMEOS_AUDIO_AUDIO_DEVICES_PREF_HANDLER_IMPL_H_ | 6 #define CHROME_BROWSER_CHROMEOS_AUDIO_AUDIO_DEVICES_PREF_HANDLER_IMPL_H_ |
7 | 7 |
8 #include "base/observer_list.h" | 8 #include "base/observer_list.h" |
9 #include "base/prefs/pref_change_registrar.h" | 9 #include "base/prefs/pref_change_registrar.h" |
10 #include "base/values.h" | 10 #include "base/values.h" |
11 #include "chromeos/audio/audio_devices_pref_handler.h" | 11 #include "chromeos/audio/audio_devices_pref_handler.h" |
12 | 12 |
13 class PrefRegistrySimple; | 13 class PrefRegistrySimple; |
14 class PrefService; | 14 class PrefService; |
15 | 15 |
16 namespace chromeos { | 16 namespace chromeos { |
17 | 17 |
18 // Class which implements AudioDevicesPrefHandler interface and register audio | 18 // Class which implements AudioDevicesPrefHandler interface and register audio |
19 // preferences as well. | 19 // preferences as well. |
20 class AudioDevicesPrefHandlerImpl : public AudioDevicesPrefHandler { | 20 class AudioDevicesPrefHandlerImpl : public AudioDevicesPrefHandler { |
21 public: | 21 public: |
22 explicit AudioDevicesPrefHandlerImpl(PrefService* local_state); | 22 explicit AudioDevicesPrefHandlerImpl(PrefService* local_state); |
23 | 23 |
24 // Overridden from AudioDevicesPrefHandler. | 24 // Overridden from AudioDevicesPrefHandler. |
25 virtual double GetOutputVolumeValue(const AudioDevice* device) OVERRIDE; | 25 virtual double GetOutputVolumeValue(const AudioDevice* device) override; |
26 virtual double GetInputGainValue(const AudioDevice* device) OVERRIDE; | 26 virtual double GetInputGainValue(const AudioDevice* device) override; |
27 virtual void SetVolumeGainValue(const AudioDevice& device, | 27 virtual void SetVolumeGainValue(const AudioDevice& device, |
28 double value) OVERRIDE; | 28 double value) override; |
29 | 29 |
30 virtual bool GetMuteValue(const AudioDevice& device) OVERRIDE; | 30 virtual bool GetMuteValue(const AudioDevice& device) override; |
31 virtual void SetMuteValue(const AudioDevice& device, bool mute_on) OVERRIDE; | 31 virtual void SetMuteValue(const AudioDevice& device, bool mute_on) override; |
32 | 32 |
33 virtual bool GetAudioCaptureAllowedValue() OVERRIDE; | 33 virtual bool GetAudioCaptureAllowedValue() override; |
34 virtual bool GetAudioOutputAllowedValue() OVERRIDE; | 34 virtual bool GetAudioOutputAllowedValue() override; |
35 | 35 |
36 virtual void AddAudioPrefObserver(AudioPrefObserver* observer) OVERRIDE; | 36 virtual void AddAudioPrefObserver(AudioPrefObserver* observer) override; |
37 virtual void RemoveAudioPrefObserver(AudioPrefObserver* observer) OVERRIDE; | 37 virtual void RemoveAudioPrefObserver(AudioPrefObserver* observer) override; |
38 | 38 |
39 // Registers volume and mute preferences. | 39 // Registers volume and mute preferences. |
40 static void RegisterPrefs(PrefRegistrySimple* registry); | 40 static void RegisterPrefs(PrefRegistrySimple* registry); |
41 | 41 |
42 protected: | 42 protected: |
43 virtual ~AudioDevicesPrefHandlerImpl(); | 43 virtual ~AudioDevicesPrefHandlerImpl(); |
44 | 44 |
45 private: | 45 private: |
46 // Initializes the observers for the policy prefs. | 46 // Initializes the observers for the policy prefs. |
47 void InitializePrefObservers(); | 47 void InitializePrefObservers(); |
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73 PrefService* local_state_; // not owned | 73 PrefService* local_state_; // not owned |
74 PrefChangeRegistrar pref_change_registrar_; | 74 PrefChangeRegistrar pref_change_registrar_; |
75 ObserverList<AudioPrefObserver> observers_; | 75 ObserverList<AudioPrefObserver> observers_; |
76 | 76 |
77 DISALLOW_COPY_AND_ASSIGN(AudioDevicesPrefHandlerImpl); | 77 DISALLOW_COPY_AND_ASSIGN(AudioDevicesPrefHandlerImpl); |
78 }; | 78 }; |
79 | 79 |
80 } // namespace chromeos | 80 } // namespace chromeos |
81 | 81 |
82 #endif // CHROME_BROWSER_CHROMEOS_AUDIO_AUDIO_DEVICES_PREF_HANDLER_IMPL_H_ | 82 #endif // CHROME_BROWSER_CHROMEOS_AUDIO_AUDIO_DEVICES_PREF_HANDLER_IMPL_H_ |
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