| // 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 CHROME_BROWSER_MEDIA_GALLERIES_LINUX_MTP_DEVICE_TASK_HELPER_MAP_SERVICE_H_ |
| #define CHROME_BROWSER_MEDIA_GALLERIES_LINUX_MTP_DEVICE_TASK_HELPER_MAP_SERVICE_H_ |
| |
| #include <map> |
| #include <string> |
| |
| #include "base/lazy_instance.h" |
| |
| class MTPDeviceTaskHelper; |
| |
| // MTPDeviceTaskHelperMapService manages MTPDeviceTaskHelper objects. |
| // MTPDeviceTaskHelperMapService lives on the UI thread. |
| class MTPDeviceTaskHelperMapService { |
| public: |
| static MTPDeviceTaskHelperMapService* GetInstance(); |
| |
| // Creates and returns the MTPDeviceTaskHelper object for the storage device |
| // specified by the |storage_name|. |
| MTPDeviceTaskHelper* CreateDeviceTaskHelper(const std::string& storage_name); |
| |
| // Destroys the MTPDeviceTaskHelper object created by |
| // CreateDeviceTaskHelper(). |
| // |storage_name| specifies the name of the storage device. |
| void DestroyDeviceTaskHelper(const std::string& storage_name); |
| |
| // Gets the MTPDeviceTaskHelper object associated with the device storage. |
| // |storage_name| specifies the name of the storage device. |
| // Return NULL if the |storage_name| is no longer valid (e.g. because the |
| // corresponding storage device is detached, etc). |
| MTPDeviceTaskHelper* GetDeviceTaskHelper(const std::string& storage_name); |
| |
| private: |
| friend struct base::DefaultLazyInstanceTraits<MTPDeviceTaskHelperMapService>; |
| |
| // Key: Storage name. |
| // Value: MTPDeviceTaskHelper object. |
| typedef std::map<std::string, MTPDeviceTaskHelper*> TaskHelperMap; |
| |
| // Get access to this class using GetInstance() method. |
| MTPDeviceTaskHelperMapService(); |
| ~MTPDeviceTaskHelperMapService(); |
| |
| // Mapping of |storage_name| and MTPDeviceTaskHelper*. |
| // TaskHelperMap owns MTPDeviceTaskHelper objects. |
| TaskHelperMap task_helper_map_; |
| |
| DISALLOW_COPY_AND_ASSIGN(MTPDeviceTaskHelperMapService); |
| }; |
| |
| #endif // CHROME_BROWSER_MEDIA_GALLERIES_LINUX_MTP_DEVICE_TASK_HELPER_MAP_SERVICE_H_ |