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 #include "chrome/browser/chromeos/fileapi/mtp_file_system_backend_delegate.h"
6 #include "chrome/browser/media_galleries/fileapi/device_media_async_file_util.h"
7 #include "webkit/browser/blob/file_stream_reader.h"
8 #include "webkit/browser/fileapi/file_stream_writer.h"
9 #include "webkit/browser/fileapi/file_system_url.h"
10
11 namespace chromeos {
12
MTPFileSystemBackendDelegate(const base::FilePath & storage_partition_path)13 MTPFileSystemBackendDelegate::MTPFileSystemBackendDelegate(
14 const base::FilePath& storage_partition_path)
15 : device_media_async_file_util_(
16 DeviceMediaAsyncFileUtil::Create(storage_partition_path,
17 NO_MEDIA_FILE_VALIDATION)) {
18 }
19
~MTPFileSystemBackendDelegate()20 MTPFileSystemBackendDelegate::~MTPFileSystemBackendDelegate() {
21 }
22
GetAsyncFileUtil(fileapi::FileSystemType type)23 fileapi::AsyncFileUtil* MTPFileSystemBackendDelegate::GetAsyncFileUtil(
24 fileapi::FileSystemType type) {
25 DCHECK_EQ(fileapi::kFileSystemTypeDeviceMediaAsFileStorage, type);
26
27 return device_media_async_file_util_.get();
28 }
29
30 scoped_ptr<webkit_blob::FileStreamReader>
CreateFileStreamReader(const fileapi::FileSystemURL & url,int64 offset,const base::Time & expected_modification_time,fileapi::FileSystemContext * context)31 MTPFileSystemBackendDelegate::CreateFileStreamReader(
32 const fileapi::FileSystemURL& url,
33 int64 offset,
34 const base::Time& expected_modification_time,
35 fileapi::FileSystemContext* context) {
36 DCHECK_EQ(fileapi::kFileSystemTypeDeviceMediaAsFileStorage, url.type());
37
38 return device_media_async_file_util_->GetFileStreamReader(
39 url, offset, expected_modification_time, context);
40 }
41
42 scoped_ptr<fileapi::FileStreamWriter>
CreateFileStreamWriter(const fileapi::FileSystemURL & url,int64 offset,fileapi::FileSystemContext * context)43 MTPFileSystemBackendDelegate::CreateFileStreamWriter(
44 const fileapi::FileSystemURL& url,
45 int64 offset,
46 fileapi::FileSystemContext* context) {
47 DCHECK_EQ(fileapi::kFileSystemTypeDeviceMediaAsFileStorage, url.type());
48
49 // TODO(kinaba): support writing.
50 return scoped_ptr<fileapi::FileStreamWriter>();
51 }
52
53 } // namespace chromeos
54