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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_DEFAULT_PROVIDER_H_ | |
| 6 #define CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_DEFAULT_PROVIDER_H_ | |
| 7 | |
| 8 #include <map> | |
| 9 #include <string> | |
| 10 #include <vector> | |
| 11 | |
| 12 #include "base/basictypes.h" | |
| 13 #include "base/memory/linked_ptr.h" | |
| 14 #include "base/prefs/pref_change_registrar.h" | |
| 15 #include "base/synchronization/lock.h" | |
| 16 #include "components/content_settings/core/browser/content_settings_observable_p
rovider.h" | |
| 17 | |
| 18 class PrefService; | |
| 19 | |
| 20 namespace user_prefs { | |
| 21 class PrefRegistrySyncable; | |
| 22 } | |
| 23 | |
| 24 namespace content_settings { | |
| 25 | |
| 26 // Provider that provides default content settings based on | |
| 27 // user prefs. If no default values are set by the user we use the hard coded | |
| 28 // default values. | |
| 29 class DefaultProvider : public ObservableProvider { | |
| 30 public: | |
| 31 static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry); | |
| 32 | |
| 33 DefaultProvider(PrefService* prefs, | |
| 34 bool incognito); | |
| 35 ~DefaultProvider() override; | |
| 36 | |
| 37 // ProviderInterface implementations. | |
| 38 RuleIterator* GetRuleIterator(ContentSettingsType content_type, | |
| 39 const ResourceIdentifier& resource_identifier, | |
| 40 bool incognito) const override; | |
| 41 | |
| 42 bool SetWebsiteSetting(const ContentSettingsPattern& primary_pattern, | |
| 43 const ContentSettingsPattern& secondary_pattern, | |
| 44 ContentSettingsType content_type, | |
| 45 const ResourceIdentifier& resource_identifier, | |
| 46 base::Value* value) override; | |
| 47 | |
| 48 void ClearAllContentSettingsRules(ContentSettingsType content_type) override; | |
| 49 | |
| 50 void ShutdownOnUIThread() override; | |
| 51 | |
| 52 private: | |
| 53 // Sets the fields of |settings| based on the values in |dictionary|. | |
| 54 void GetSettingsFromDictionary(const base::DictionaryValue* dictionary); | |
| 55 | |
| 56 // Forces the default settings to be explicitly set instead of themselves | |
| 57 // being CONTENT_SETTING_DEFAULT. | |
| 58 void ForceDefaultsToBeExplicit(); | |
| 59 | |
| 60 // Reads the default settings from the preferences service. If |overwrite| is | |
| 61 // true and the preference is missing, the local copy will be cleared as well. | |
| 62 void ReadDefaultSettings(bool overwrite); | |
| 63 | |
| 64 // Called on prefs change. | |
| 65 void OnPreferenceChanged(const std::string& pref_name); | |
| 66 | |
| 67 typedef linked_ptr<base::Value> ValuePtr; | |
| 68 typedef std::map<ContentSettingsType, ValuePtr> ValueMap; | |
| 69 // Copies of the pref data, so that we can read it on the IO thread. | |
| 70 ValueMap default_settings_; | |
| 71 | |
| 72 PrefService* prefs_; | |
| 73 | |
| 74 // Whether this settings map is for an Incognito session. | |
| 75 bool is_incognito_; | |
| 76 | |
| 77 // Used around accesses to the |default_content_settings_| object to guarantee | |
| 78 // thread safety. | |
| 79 mutable base::Lock lock_; | |
| 80 | |
| 81 PrefChangeRegistrar pref_change_registrar_; | |
| 82 | |
| 83 // Whether we are currently updating preferences, this is used to ignore | |
| 84 // notifications from the preferences service that we triggered ourself. | |
| 85 bool updating_preferences_; | |
| 86 | |
| 87 DISALLOW_COPY_AND_ASSIGN(DefaultProvider); | |
| 88 }; | |
| 89 | |
| 90 } // namespace content_settings | |
| 91 | |
| 92 #endif // CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_DEFAULT_PROVIDER_H_ | |
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Chromium Code Reviews
Issue 670953006:
Componentize HostContentSettingsMap and content settings providers. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master