chrome/browser/content_settings/content_settings_custom_extension_provider.h

   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
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_CUSTOM_EXTENSION_PROVIDER_H_
   6 #define CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_CUSTOM_EXTENSION_PROVIDER_H_
   7
   8 #include <string>
   9
  10 #include "base/memory/ref_counted.h"
  11 #include "chrome/browser/content_settings/content_settings_observable_provider.h"
  12 #include "chrome/browser/extensions/api/content_settings/content_settings_store.h"
  13
  14 namespace content_settings {
  15
  16 // A content settings provider which manages settings defined by extensions.
  17 class CustomExtensionProvider : public ObservableProvider,
  18                           public extensions::ContentSettingsStore::Observer {
  19  public:
  20   CustomExtensionProvider(
  21       extensions::ContentSettingsStore* extensions_settings,
  22       bool incognito);
  23
  24   virtual ~CustomExtensionProvider();
  25
  26   // ProviderInterface methods:
  27   virtual RuleIterator* GetRuleIterator(
  28       ContentSettingsType content_type,
  29       const ResourceIdentifier& resource_identifier,
  30       bool incognito) const OVERRIDE;
  31
  32   virtual bool SetWebsiteSetting(
  33       const ContentSettingsPattern& primary_pattern,
  34       const ContentSettingsPattern& secondary_pattern,
  35       ContentSettingsType content_type,
  36       const ResourceIdentifier& resource_identifier,
  37       Value* value) OVERRIDE;
  38
  39   virtual void ClearAllContentSettingsRules(ContentSettingsType content_type)
  40       OVERRIDE {}
  41
  42   virtual void ShutdownOnUIThread() OVERRIDE;
  43
  44   // extensions::ContentSettingsStore::Observer methods:
  45   virtual void OnContentSettingChanged(const std::string& extension_id,
  46                                        bool incognito) OVERRIDE;
  47
  48  private:
  49   // Specifies whether this provider manages settings for incognito or regular
  50   // sessions.
  51   bool incognito_;
  52
  53   // The backend storing content setting rules defined by extensions.
  54   scoped_refptr<extensions::ContentSettingsStore> extensions_settings_;
  55
  56   DISALLOW_COPY_AND_ASSIGN(CustomExtensionProvider);
  57 };
  58
  59 }  // namespace content_settings
  60
  61 #endif  // CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_CUSTOM_EXTENSION_PROVIDER_H_