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1 // Copyright 2012 The Chromium Authors. All rights reserved. | 1 // Copyright 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 IOS_CHROME_BROWSER_PREFS_PREF_OBSERVER_BRIDGE_H_ | 5 #ifndef IOS_CHROME_BROWSER_PREFS_PREF_OBSERVER_BRIDGE_H_ |
6 #define IOS_CHROME_BROWSER_PREFS_PREF_OBSERVER_BRIDGE_H_ | 6 #define IOS_CHROME_BROWSER_PREFS_PREF_OBSERVER_BRIDGE_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 | 9 |
10 #include "base/compiler_specific.h" | 10 #include "base/compiler_specific.h" |
11 | 11 |
12 class PrefChangeRegistrar; | 12 class PrefChangeRegistrar; |
13 | 13 |
14 @protocol PrefObserverDelegate | 14 @protocol PrefObserverDelegate |
15 - (void)onPreferenceChanged:(const std::string&)preferenceName; | 15 - (void)onPreferenceChanged:(const std::string&)preferenceName; |
16 @end | 16 @end |
17 | 17 |
18 class PrefObserverBridge { | 18 class PrefObserverBridge { |
19 public: | 19 public: |
20 explicit PrefObserverBridge(id<PrefObserverDelegate> delegate); | 20 explicit PrefObserverBridge(id<PrefObserverDelegate> delegate); |
21 virtual ~PrefObserverBridge(); | 21 virtual ~PrefObserverBridge(); |
22 | 22 |
23 virtual void ObserveChangesForPreference(const std::string& pref_name, | 23 virtual void ObserveChangesForPreference(const std::string& pref_name, |
24 PrefChangeRegistrar* registrar); | 24 PrefChangeRegistrar* registrar); |
25 | 25 |
26 private: | 26 private: |
27 virtual void OnPreferenceChanged(const std::string& pref_name); | 27 virtual void OnPreferenceChanged(const std::string& pref_name); |
28 | 28 |
29 id<PrefObserverDelegate> delegate_; | 29 __unsafe_unretained id<PrefObserverDelegate> delegate_; |
30 }; | 30 }; |
31 | 31 |
32 #endif // IOS_CHROME_BROWSER_PREFS_PREF_OBSERVER_BRIDGE_H_ | 32 #endif // IOS_CHROME_BROWSER_PREFS_PREF_OBSERVER_BRIDGE_H_ |
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