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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef CHROME_BROWSER_MEDIA_GALLERIES_LINUX_MTP_READ_FILE_WORKER_H_ | 5 #ifndef CHROME_BROWSER_MEDIA_GALLERIES_LINUX_MTP_READ_FILE_WORKER_H_ |
| 6 #define CHROME_BROWSER_MEDIA_GALLERIES_LINUX_MTP_READ_FILE_WORKER_H_ | 6 #define CHROME_BROWSER_MEDIA_GALLERIES_LINUX_MTP_READ_FILE_WORKER_H_ |
| 7 | 7 |
| 8 #include <string> | 8 #include <string> |
| 9 | 9 |
| 10 #include "base/callback.h" | 10 #include "base/callback.h" |
| 11 #include "base/files/file.h" |
| 11 #include "base/memory/scoped_ptr.h" | 12 #include "base/memory/scoped_ptr.h" |
| 12 #include "base/memory/weak_ptr.h" | 13 #include "base/memory/weak_ptr.h" |
| 13 #include "base/platform_file.h" | |
| 14 | 14 |
| 15 namespace base { | 15 namespace base { |
| 16 class FilePath; | 16 class FilePath; |
| 17 } | 17 } |
| 18 | 18 |
| 19 class SnapshotFileDetails; | 19 class SnapshotFileDetails; |
| 20 struct SnapshotRequestInfo; | 20 struct SnapshotRequestInfo; |
| 21 | 21 |
| 22 // Worker class to copy the contents of the media transfer protocol(MTP) device | 22 // Worker class to copy the contents of the media transfer protocol(MTP) device |
| 23 // file to the given snapshot file. | 23 // file to the given snapshot file. |
| 24 class MTPReadFileWorker { | 24 class MTPReadFileWorker { |
| 25 public: | 25 public: |
| 26 explicit MTPReadFileWorker(const std::string& device_handle); | 26 explicit MTPReadFileWorker(const std::string& device_handle); |
| 27 ~MTPReadFileWorker(); | 27 ~MTPReadFileWorker(); |
| 28 | 28 |
| 29 // Dispatches the request to MediaTransferProtocolManager to get the media | 29 // Dispatches the request to MediaTransferProtocolManager to get the media |
| 30 // file contents. | 30 // file contents. |
| 31 // | 31 // |
| 32 // |request_info| specifies the snapshot file request params. | 32 // |request_info| specifies the snapshot file request params. |
| 33 // |snapshot_file_info| specifies the metadata of the snapshot file. | 33 // |snapshot_file_info| specifies the metadata of the snapshot file. |
| 34 void WriteDataIntoSnapshotFile( | 34 void WriteDataIntoSnapshotFile( |
| 35 const SnapshotRequestInfo& request_info, | 35 const SnapshotRequestInfo& request_info, |
| 36 const base::PlatformFileInfo& snapshot_file_info); | 36 const base::File::Info& snapshot_file_info); |
| 37 | 37 |
| 38 private: | 38 private: |
| 39 // Called when WriteDataIntoSnapshotFile() completes. | 39 // Called when WriteDataIntoSnapshotFile() completes. |
| 40 // | 40 // |
| 41 // |snapshot_file_details| contains the current state of the snapshot file | 41 // |snapshot_file_details| contains the current state of the snapshot file |
| 42 // (such as how many bytes written to the snapshot file, media device file | 42 // (such as how many bytes written to the snapshot file, media device file |
| 43 // path, snapshot file path, bytes remaining, etc). | 43 // path, snapshot file path, bytes remaining, etc). |
| 44 // | 44 // |
| 45 // If there is an error, |snapshot_file_details.error_callback| is invoked on | 45 // If there is an error, |snapshot_file_details.error_callback| is invoked on |
| 46 // the IO thread to notify the caller about the failure. | 46 // the IO thread to notify the caller about the failure. |
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| 80 // The device unique identifier to query the device. | 80 // The device unique identifier to query the device. |
| 81 const std::string device_handle_; | 81 const std::string device_handle_; |
| 82 | 82 |
| 83 // For callbacks that may run after destruction. | 83 // For callbacks that may run after destruction. |
| 84 base::WeakPtrFactory<MTPReadFileWorker> weak_ptr_factory_; | 84 base::WeakPtrFactory<MTPReadFileWorker> weak_ptr_factory_; |
| 85 | 85 |
| 86 DISALLOW_COPY_AND_ASSIGN(MTPReadFileWorker); | 86 DISALLOW_COPY_AND_ASSIGN(MTPReadFileWorker); |
| 87 }; | 87 }; |
| 88 | 88 |
| 89 #endif // CHROME_BROWSER_MEDIA_GALLERIES_LINUX_MTP_READ_FILE_WORKER_H_ | 89 #endif // CHROME_BROWSER_MEDIA_GALLERIES_LINUX_MTP_READ_FILE_WORKER_H_ |
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