src/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/extensions/api/content_settings/content_settings_store.h"
  12 #include "components/content_settings/core/browser/content_settings_observable_provider.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(const scoped_refptr<extensions::ContentSettingsStore>&
  21                               extensions_settings,
  22                           bool incognito);
  23
  24   ~CustomExtensionProvider() override;
  25
  26   // ProviderInterface methods:
  27   RuleIterator* GetRuleIterator(ContentSettingsType content_type,
  28                                 const ResourceIdentifier& resource_identifier,
  29                                 bool incognito) const override;
  30
  31   bool SetWebsiteSetting(const ContentSettingsPattern& primary_pattern,
  32                          const ContentSettingsPattern& secondary_pattern,
  33                          ContentSettingsType content_type,
  34                          const ResourceIdentifier& resource_identifier,
  35                          base::Value* value) override;
  36
  37   void ClearAllContentSettingsRules(ContentSettingsType content_type) override {
  38   }
  39
  40   void ShutdownOnUIThread() override;
  41
  42   // extensions::ContentSettingsStore::Observer methods:
  43   void OnContentSettingChanged(const std::string& extension_id,
  44                                bool incognito) override;
  45
  46  private:
  47   // Specifies whether this provider manages settings for incognito or regular
  48   // sessions.
  49   bool incognito_;
  50
  51   // The backend storing content setting rules defined by extensions.
  52   scoped_refptr<extensions::ContentSettingsStore> extensions_settings_;
  53
  54   DISALLOW_COPY_AND_ASSIGN(CustomExtensionProvider);
  55 };
  56
  57 }  // namespace content_settings
  58
  59 #endif  // CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_CUSTOM_EXTENSION_PROVIDER_H_