chrome/browser/content_settings/content_settings_supervised_provider.h

   1 // Copyright (c) 2015 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_SUPERVISED_PROVIDER_H_
   6 #define CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_SUPERVISED_PROVIDER_H_
   7
   8 // A content setting provider that is set by the custodian of a supervised user.
   9
  10 #include "base/callback_list.h"
  11 #include "base/synchronization/lock.h"
  12 #include "components/content_settings/core/browser/content_settings_binary_value_map.h"
  13 #include "components/content_settings/core/browser/content_settings_observable_provider.h"
  14
  15 class PrefService;
  16 class SupervisedUserSettingsService;
  17
  18 namespace content_settings {
  19
  20 // SupervisedProvider that provides content-settings managed by the custodian
  21 // of a supervised user.
  22 class SupervisedProvider : public ObservableProvider {
  23  public:
  24   explicit SupervisedProvider(
  25       SupervisedUserSettingsService* supervised_user_settings_service);
  26   ~SupervisedProvider() override;
  27
  28   // ProviderInterface implementations.
  29   RuleIterator* GetRuleIterator(ContentSettingsType content_type,
  30                                 const ResourceIdentifier& resource_identifier,
  31                                 bool incognito) const override;
  32
  33   bool SetWebsiteSetting(const ContentSettingsPattern& primary_pattern,
  34                          const ContentSettingsPattern& secondary_pattern,
  35                          ContentSettingsType content_type,
  36                          const ResourceIdentifier& resource_identifier,
  37                          base::Value* value) override;
  38
  39   void ClearAllContentSettingsRules(ContentSettingsType content_type) override;
  40
  41   void ShutdownOnUIThread() override;
  42
  43   // Callback on receiving settings from the supervised user settings service.
  44   void OnSupervisedSettingsAvailable(const base::DictionaryValue* settings);
  45
  46  private:
  47   BinaryValueMap value_map_;
  48
  49   // Used around accesses to the |value_map_| object to guarantee
  50   // thread safety.
  51   mutable base::Lock lock_;
  52
  53   scoped_ptr<base::CallbackList<void(
  54       const base::DictionaryValue*)>::Subscription> user_settings_subscription_;
  55
  56   DISALLOW_COPY_AND_ASSIGN(SupervisedProvider);
  57 };
  58
  59 }  // namespace content_settings
  60
  61 #endif  // CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_SUPERVISED_PROVIDER_H_