components/content_settings/core/browser/content_settings_registry.h

   1 // Copyright 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 COMPONENTS_CONTENT_SETTINGS_CORE_BROWSER_CONTENT_SETTINGS_REGISTRY_H_
   6 #define COMPONENTS_CONTENT_SETTINGS_CORE_BROWSER_CONTENT_SETTINGS_REGISTRY_H_
   7
   8 #include <string>
   9
  10 #include "base/lazy_instance.h"
  11 #include "base/macros.h"
  12 #include "base/memory/scoped_vector.h"
  13 #include "components/content_settings/core/browser/content_settings_info.h"
  14 #include "components/content_settings/core/browser/website_settings_info.h"
  15 #include "components/content_settings/core/common/content_settings.h"
  16 #include "components/content_settings/core/common/content_settings_types.h"
  17
  18 namespace content_settings {
  19
  20 class WebsiteSettingsRegistry;
  21
  22 // This class stores ContentSettingsInfo objects for each content setting in the
  23 // system and provides access to them. Global instances can be fetched and
  24 // methods called from from any thread because all of its public methods are
  25 // const.
  26 class ContentSettingsRegistry {
  27  public:
  28   static ContentSettingsRegistry* GetInstance();
  29
  30   // Reset the instance for use inside tests.
  31   void ResetForTest();
  32
  33   const ContentSettingsInfo* Get(ContentSettingsType type) const;
  34
  35  private:
  36   friend class ContentSettingsRegistryTest;
  37   friend struct base::DefaultLazyInstanceTraits<ContentSettingsRegistry>;
  38
  39   ContentSettingsRegistry();
  40   ContentSettingsRegistry(WebsiteSettingsRegistry* website_settings_registry);
  41   ~ContentSettingsRegistry();
  42
  43   void Init();
  44
  45   // Register a new content setting. This maps an origin to an ALLOW/ASK/BLOCK
  46   // value (see the ContentSetting enum).
  47   void Register(ContentSettingsType type,
  48                 const std::string& name,
  49                 ContentSetting initial_default_value,
  50                 WebsiteSettingsInfo::SyncStatus sync_status,
  51                 const std::vector<std::string>& whitelisted_schemes);
  52
  53   ScopedVector<ContentSettingsInfo> content_settings_info_;
  54   WebsiteSettingsRegistry* website_settings_registry_;
  55
  56   DISALLOW_COPY_AND_ASSIGN(ContentSettingsRegistry);
  57 };
  58
  59 }  // namespace content_settings
  60
  61 #endif  // COMPONENTS_CONTENT_SETTINGS_CORE_BROWSER_CONTENT_SETTINGS_REGISTRY_H_