| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef APPS_SAVED_FILES_SERVICE_H_ |
| #define APPS_SAVED_FILES_SERVICE_H_ |
| |
| #include <map> |
| #include <memory> |
| #include <set> |
| #include <string> |
| #include <vector> |
| |
| #include "base/files/file_path.h" |
| #include "base/gtest_prod_util.h" |
| #include "components/keyed_service/core/keyed_service.h" |
| #include "content/public/browser/notification_observer.h" |
| #include "content/public/browser/notification_registrar.h" |
| #include "extensions/browser/api/file_system/saved_files_service_interface.h" |
| |
| namespace content { |
| class BrowserContext; |
| } |
| |
| class SavedFilesServiceUnitTest; |
| FORWARD_DECLARE_TEST(SavedFilesServiceUnitTest, RetainTwoFilesTest); |
| FORWARD_DECLARE_TEST(SavedFilesServiceUnitTest, EvictionTest); |
| FORWARD_DECLARE_TEST(SavedFilesServiceUnitTest, SequenceNumberCompactionTest); |
| |
| namespace extensions { |
| class Extension; |
| struct SavedFileEntry; |
| } |
| |
| namespace apps { |
| |
| // Tracks the files that apps have retained access to both while running and |
| // when suspended. |
| class SavedFilesService : public extensions::SavedFilesServiceInterface, |
| public KeyedService, |
| public content::NotificationObserver { |
| public: |
| explicit SavedFilesService(content::BrowserContext* context); |
| ~SavedFilesService() override; |
| |
| static SavedFilesService* Get(content::BrowserContext* context); |
| |
| // extensions::SavedFilesServiceInterface: |
| void RegisterFileEntry(const std::string& extension_id, |
| const std::string& id, |
| const base::FilePath& file_path, |
| bool is_directory) override; |
| void EnqueueFileEntry(const std::string& extension_id, |
| const std::string& id) override; |
| bool IsRegistered(const std::string& extension_id, |
| const std::string& id) override; |
| const extensions::SavedFileEntry* GetFileEntry( |
| const std::string& extension_id, |
| const std::string& id) override; |
| |
| // Returns all registered file entries. |
| std::vector<extensions::SavedFileEntry> GetAllFileEntries( |
| const std::string& extension_id); |
| |
| // Clears all retained files if the app does not have the |
| // fileSystem.retainEntries permission. |
| void ClearQueueIfNoRetainPermission(const extensions::Extension* extension); |
| |
| // Clears all retained files. |
| void ClearQueue(const extensions::Extension* extension); |
| |
| // Called to notify that the application has begun to exit. |
| void OnApplicationTerminating(); |
| |
| private: |
| FRIEND_TEST_ALL_PREFIXES(::SavedFilesServiceUnitTest, RetainTwoFilesTest); |
| FRIEND_TEST_ALL_PREFIXES(::SavedFilesServiceUnitTest, EvictionTest); |
| FRIEND_TEST_ALL_PREFIXES(::SavedFilesServiceUnitTest, |
| SequenceNumberCompactionTest); |
| friend class ::SavedFilesServiceUnitTest; |
| |
| // A container for the registered files for an app. |
| class SavedFiles; |
| |
| // content::NotificationObserver. |
| void Observe(int type, |
| const content::NotificationSource& source, |
| const content::NotificationDetails& details) override; |
| |
| // Returns the SavedFiles for |extension_id| or NULL if one does not exist. |
| SavedFiles* Get(const std::string& extension_id) const; |
| |
| // Returns the SavedFiles for |extension_id|, creating it if necessary. |
| SavedFiles* GetOrInsert(const std::string& extension_id); |
| |
| // Clears the SavedFiles for |extension_id|. |
| void Clear(const std::string& extension_id); |
| |
| static void SetMaxSequenceNumberForTest(int max_value); |
| static void ClearMaxSequenceNumberForTest(); |
| static void SetLruSizeForTest(int size); |
| static void ClearLruSizeForTest(); |
| |
| std::map<std::string, std::unique_ptr<SavedFiles>> |
| extension_id_to_saved_files_; |
| content::NotificationRegistrar registrar_; |
| content::BrowserContext* context_; |
| |
| DISALLOW_COPY_AND_ASSIGN(SavedFilesService); |
| }; |
| |
| } // namespace apps |
| |
| #endif // APPS_SAVED_FILES_SERVICE_H_ |