| // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_DEFAULT_PROVIDER_H_ |
| #define CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_DEFAULT_PROVIDER_H_ |
| |
| #include <map> |
| #include <string> |
| #include <vector> |
| |
| #include "base/basictypes.h" |
| #include "base/memory/linked_ptr.h" |
| #include "base/prefs/pref_change_registrar.h" |
| #include "base/synchronization/lock.h" |
| #include "chrome/browser/content_settings/content_settings_observable_provider.h" |
| |
| class PrefService; |
| |
| namespace user_prefs { |
| class PrefRegistrySyncable; |
| } |
| |
| namespace content_settings { |
| |
| // Provider that provides default content settings based on |
| // user prefs. If no default values are set by the user we use the hard coded |
| // default values. |
| class DefaultProvider : public ObservableProvider { |
| public: |
| static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry); |
| |
| DefaultProvider(PrefService* prefs, |
| bool incognito); |
| virtual ~DefaultProvider(); |
| |
| // ProviderInterface implementations. |
| virtual RuleIterator* GetRuleIterator( |
| ContentSettingsType content_type, |
| const ResourceIdentifier& resource_identifier, |
| bool incognito) const OVERRIDE; |
| |
| virtual bool SetWebsiteSetting( |
| const ContentSettingsPattern& primary_pattern, |
| const ContentSettingsPattern& secondary_pattern, |
| ContentSettingsType content_type, |
| const ResourceIdentifier& resource_identifier, |
| base::Value* value) OVERRIDE; |
| |
| virtual void ClearAllContentSettingsRules( |
| ContentSettingsType content_type) OVERRIDE; |
| |
| virtual void ShutdownOnUIThread() OVERRIDE; |
| |
| private: |
| // Sets the fields of |settings| based on the values in |dictionary|. |
| void GetSettingsFromDictionary(const base::DictionaryValue* dictionary); |
| |
| // Forces the default settings to be explicitly set instead of themselves |
| // being CONTENT_SETTING_DEFAULT. |
| void ForceDefaultsToBeExplicit(); |
| |
| // Reads the default settings from the preferences service. If |overwrite| is |
| // true and the preference is missing, the local copy will be cleared as well. |
| void ReadDefaultSettings(bool overwrite); |
| |
| // Called on prefs change. |
| void OnPreferenceChanged(const std::string& pref_name); |
| |
| typedef linked_ptr<base::Value> ValuePtr; |
| typedef std::map<ContentSettingsType, ValuePtr> ValueMap; |
| // Copies of the pref data, so that we can read it on the IO thread. |
| ValueMap default_settings_; |
| |
| PrefService* prefs_; |
| |
| // Whether this settings map is for an Incognito session. |
| bool is_incognito_; |
| |
| // Used around accesses to the |default_content_settings_| object to guarantee |
| // thread safety. |
| mutable base::Lock lock_; |
| |
| PrefChangeRegistrar pref_change_registrar_; |
| |
| // Whether we are currently updating preferences, this is used to ignore |
| // notifications from the preferences service that we triggered ourself. |
| bool updating_preferences_; |
| |
| DISALLOW_COPY_AND_ASSIGN(DefaultProvider); |
| }; |
| |
| } // namespace content_settings |
| |
| #endif // CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_DEFAULT_PROVIDER_H_ |