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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 CHROME_BROWSER_EXTENSIONS_EXTENSION_PREF_VALUE_MAP_H_ | 5 #ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_PREF_VALUE_MAP_H_ |
6 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_PREF_VALUE_MAP_H_ | 6 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_PREF_VALUE_MAP_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include <map> | 9 #include <map> |
10 #include <set> | 10 #include <set> |
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52 // A = extension A, B = extension B, E = effective value | 52 // A = extension A, B = extension B, E = effective value |
53 // .reg = regular value | 53 // .reg = regular value |
54 // .reg_only = regular-only value | 54 // .reg_only = regular-only value |
55 // .inc = incognito value | 55 // .inc = incognito value |
56 // Extension B has higher precedence than A. | 56 // Extension B has higher precedence than A. |
57 class ExtensionPrefValueMap : public ProfileKeyedService { | 57 class ExtensionPrefValueMap : public ProfileKeyedService { |
58 public: | 58 public: |
59 // Observer interface for monitoring ExtensionPrefValueMap. | 59 // Observer interface for monitoring ExtensionPrefValueMap. |
60 class Observer { | 60 class Observer { |
61 public: | 61 public: |
62 virtual ~Observer() {} | |
63 | |
64 // Called when the value for the given |key| set by one of the extensions | 62 // Called when the value for the given |key| set by one of the extensions |
65 // changes. This does not necessarily mean that the effective value has | 63 // changes. This does not necessarily mean that the effective value has |
66 // changed. | 64 // changed. |
67 virtual void OnPrefValueChanged(const std::string& key) = 0; | 65 virtual void OnPrefValueChanged(const std::string& key) = 0; |
68 // Notification about the ExtensionPrefValueMap being fully initialized. | 66 // Notification about the ExtensionPrefValueMap being fully initialized. |
69 virtual void OnInitializationCompleted() = 0; | 67 virtual void OnInitializationCompleted() = 0; |
70 // Called when the ExtensionPrefValueMap is being destroyed. When called, | 68 // Called when the ExtensionPrefValueMap is being destroyed. When called, |
71 // observers must unsubscribe. | 69 // observers must unsubscribe. |
72 virtual void OnExtensionPrefValueMapDestruction() = 0; | 70 virtual void OnExtensionPrefValueMapDestruction() = 0; |
| 71 |
| 72 protected: |
| 73 virtual ~Observer() {} |
73 }; | 74 }; |
74 | 75 |
75 ExtensionPrefValueMap(); | 76 ExtensionPrefValueMap(); |
76 virtual ~ExtensionPrefValueMap(); | 77 virtual ~ExtensionPrefValueMap(); |
77 | 78 |
78 // ProfileKeyedService implementation. | 79 // ProfileKeyedService implementation. |
79 virtual void Shutdown() OVERRIDE; | 80 virtual void Shutdown() OVERRIDE; |
80 | 81 |
81 // Set an extension preference |value| for |key| of extension |ext_id|. | 82 // Set an extension preference |value| for |key| of extension |ext_id|. |
82 // Takes ownership of |value|. | 83 // Takes ownership of |value|. |
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181 // being destroyed. In tests, it isn't called, so the notification must | 182 // being destroyed. In tests, it isn't called, so the notification must |
182 // be done in the destructor. This bit tracks whether it has been done yet. | 183 // be done in the destructor. This bit tracks whether it has been done yet. |
183 bool destroyed_; | 184 bool destroyed_; |
184 | 185 |
185 ObserverList<Observer, true> observers_; | 186 ObserverList<Observer, true> observers_; |
186 | 187 |
187 DISALLOW_COPY_AND_ASSIGN(ExtensionPrefValueMap); | 188 DISALLOW_COPY_AND_ASSIGN(ExtensionPrefValueMap); |
188 }; | 189 }; |
189 | 190 |
190 #endif // CHROME_BROWSER_EXTENSIONS_EXTENSION_PREF_VALUE_MAP_H_ | 191 #endif // CHROME_BROWSER_EXTENSIONS_EXTENSION_PREF_VALUE_MAP_H_ |
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