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      1 // Copyright 2014 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_EXTENSIONS_API_CONTENT_SETTINGS_CONTENT_SETTINGS_SERVICE_H_
      6 #define CHROME_BROWSER_EXTENSIONS_API_CONTENT_SETTINGS_CONTENT_SETTINGS_SERVICE_H_
      7 
      8 #include "base/memory/ref_counted.h"
      9 #include "extensions/browser/browser_context_keyed_api_factory.h"
     10 #include "extensions/browser/extension_prefs_observer.h"
     11 
     12 namespace extensions {
     13 
     14 class ContentSettingsStore;
     15 class ExtensionPrefs;
     16 
     17 // This service hosts a single ContentSettingsStore for the
     18 // chrome.contentSettings API.
     19 class ContentSettingsService : public BrowserContextKeyedAPI,
     20                                public ExtensionPrefsObserver {
     21  public:
     22   explicit ContentSettingsService(content::BrowserContext* context);
     23   virtual ~ContentSettingsService();
     24 
     25   scoped_refptr<ContentSettingsStore> content_settings_store() const {
     26     return content_settings_store_;
     27   }
     28 
     29   // Convenience function to get the service for some browser context.
     30   static ContentSettingsService* Get(content::BrowserContext* context);
     31 
     32   // BrowserContextKeyedAPI implementation.
     33   static BrowserContextKeyedAPIFactory<ContentSettingsService>*
     34       GetFactoryInstance();
     35 
     36   // ExtensionPrefsObserver implementation.
     37   virtual void OnExtensionRegistered(const std::string& extension_id,
     38                                      const base::Time& install_time,
     39                                      bool is_enabled) OVERRIDE;
     40   virtual void OnExtensionPrefsLoaded(const std::string& extension_id,
     41                                       const ExtensionPrefs* prefs) OVERRIDE;
     42   virtual void OnExtensionPrefsDeleted(const std::string& extension_id)
     43       OVERRIDE;
     44   virtual void OnExtensionStateChanged(const std::string& extension_id,
     45                                        bool state) OVERRIDE;
     46 
     47  private:
     48   friend class BrowserContextKeyedAPIFactory<ContentSettingsService>;
     49 
     50   // BrowserContextKeyedAPI implementation.
     51   static const char* service_name() { return "ContentSettingsService"; }
     52 
     53   scoped_refptr<ContentSettingsStore> content_settings_store_;
     54 
     55   DISALLOW_COPY_AND_ASSIGN(ContentSettingsService);
     56 };
     57 
     58 }  // namespace extensions
     59 
     60 #endif  // CHROME_BROWSER_EXTENSIONS_API_CONTENT_SETTINGS_CONTENT_SETTINGS_SERVICE_H_
     61