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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_CONTENT_SETTINGS_CONTENT_SETTINGS_PREF_PROVIDER_H_ | 5 #ifndef CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_PREF_PROVIDER_H_ |
6 #define CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_PREF_PROVIDER_H_ | 6 #define CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_PREF_PROVIDER_H_ |
7 | 7 |
8 // A content settings provider that takes its settings out of the pref service. | 8 // A content settings provider that takes its settings out of the pref service. |
9 | 9 |
10 #include <vector> | 10 #include <vector> |
11 | 11 |
12 #include "base/basictypes.h" | 12 #include "base/basictypes.h" |
13 #include "base/prefs/public/pref_change_registrar.h" | 13 #include "base/prefs/public/pref_change_registrar.h" |
14 #include "base/prefs/public/pref_observer.h" | |
15 #include "base/synchronization/lock.h" | 14 #include "base/synchronization/lock.h" |
16 #include "chrome/browser/content_settings/content_settings_observable_provider.h
" | 15 #include "chrome/browser/content_settings/content_settings_observable_provider.h
" |
17 #include "chrome/browser/content_settings/content_settings_origin_identifier_val
ue_map.h" | 16 #include "chrome/browser/content_settings/content_settings_origin_identifier_val
ue_map.h" |
18 #include "chrome/browser/content_settings/content_settings_utils.h" | 17 #include "chrome/browser/content_settings/content_settings_utils.h" |
19 | 18 |
20 class PrefService; | 19 class PrefService; |
21 | 20 |
22 namespace base { | 21 namespace base { |
23 class DictionaryValue; | 22 class DictionaryValue; |
24 } | 23 } |
25 | 24 |
26 namespace content_settings { | 25 namespace content_settings { |
27 | 26 |
28 // Content settings provider that provides content settings from the user | 27 // Content settings provider that provides content settings from the user |
29 // preference. | 28 // preference. |
30 class PrefProvider : public ObservableProvider, | 29 class PrefProvider : public ObservableProvider { |
31 public PrefObserver { | |
32 public: | 30 public: |
33 static void RegisterUserPrefs(PrefService* prefs); | 31 static void RegisterUserPrefs(PrefService* prefs); |
34 | 32 |
35 PrefProvider(PrefService* prefs, | 33 PrefProvider(PrefService* prefs, |
36 bool incognito); | 34 bool incognito); |
37 virtual ~PrefProvider(); | 35 virtual ~PrefProvider(); |
38 | 36 |
39 // ProviderInterface implementations. | 37 // ProviderInterface implementations. |
40 virtual RuleIterator* GetRuleIterator( | 38 virtual RuleIterator* GetRuleIterator( |
41 ContentSettingsType content_type, | 39 ContentSettingsType content_type, |
42 const ResourceIdentifier& resource_identifier, | 40 const ResourceIdentifier& resource_identifier, |
43 bool incognito) const OVERRIDE; | 41 bool incognito) const OVERRIDE; |
44 | 42 |
45 virtual bool SetWebsiteSetting( | 43 virtual bool SetWebsiteSetting( |
46 const ContentSettingsPattern& primary_pattern, | 44 const ContentSettingsPattern& primary_pattern, |
47 const ContentSettingsPattern& secondary_pattern, | 45 const ContentSettingsPattern& secondary_pattern, |
48 ContentSettingsType content_type, | 46 ContentSettingsType content_type, |
49 const ResourceIdentifier& resource_identifier, | 47 const ResourceIdentifier& resource_identifier, |
50 Value* value) OVERRIDE; | 48 Value* value) OVERRIDE; |
51 | 49 |
52 virtual void ClearAllContentSettingsRules( | 50 virtual void ClearAllContentSettingsRules( |
53 ContentSettingsType content_type) OVERRIDE; | 51 ContentSettingsType content_type) OVERRIDE; |
54 | 52 |
55 virtual void ShutdownOnUIThread() OVERRIDE; | 53 virtual void ShutdownOnUIThread() OVERRIDE; |
56 | 54 |
57 // PrefObserver implementation. | |
58 virtual void OnPreferenceChanged(PrefServiceBase* service, | |
59 const std::string& pref_name) OVERRIDE; | |
60 | |
61 private: | 55 private: |
62 friend class DeadlockCheckerThread; // For testing. | 56 friend class DeadlockCheckerThread; // For testing. |
63 // Reads all content settings exceptions from the preference and load them | 57 // Reads all content settings exceptions from the preference and load them |
64 // into the |value_map_|. The |value_map_| is cleared first if |overwrite| is | 58 // into the |value_map_|. The |value_map_| is cleared first if |overwrite| is |
65 // true. | 59 // true. |
66 void ReadContentSettingsFromPref(bool overwrite); | 60 void ReadContentSettingsFromPref(bool overwrite); |
67 | 61 |
| 62 // Callback for changes in the pref with the same name. |
| 63 void OnContentSettingsPatternPairsChanged(); |
| 64 |
68 // Update the preference that stores content settings exceptions and syncs the | 65 // Update the preference that stores content settings exceptions and syncs the |
69 // value to the obsolete preference. When calling this function, |lock_| | 66 // value to the obsolete preference. When calling this function, |lock_| |
70 // should not be held, since this function will send out notifications of | 67 // should not be held, since this function will send out notifications of |
71 // preference changes. | 68 // preference changes. |
72 void UpdatePref( | 69 void UpdatePref( |
73 const ContentSettingsPattern& primary_pattern, | 70 const ContentSettingsPattern& primary_pattern, |
74 const ContentSettingsPattern& secondary_pattern, | 71 const ContentSettingsPattern& secondary_pattern, |
75 ContentSettingsType content_type, | 72 ContentSettingsType content_type, |
76 const ResourceIdentifier& resource_identifier, | 73 const ResourceIdentifier& resource_identifier, |
77 const base::Value* value); | 74 const base::Value* value); |
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115 | 112 |
116 // Used around accesses to the value map objects to guarantee thread safety. | 113 // Used around accesses to the value map objects to guarantee thread safety. |
117 mutable base::Lock lock_; | 114 mutable base::Lock lock_; |
118 | 115 |
119 DISALLOW_COPY_AND_ASSIGN(PrefProvider); | 116 DISALLOW_COPY_AND_ASSIGN(PrefProvider); |
120 }; | 117 }; |
121 | 118 |
122 } // namespace content_settings | 119 } // namespace content_settings |
123 | 120 |
124 #endif // CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_PREF_PROVIDER_H_ | 121 #endif // CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_PREF_PROVIDER_H_ |
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