| // Copyright 2014 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. |
| |
| #include "chrome/browser/chromeos/fileapi/mtp_file_system_backend_delegate.h" |
| #include "chrome/browser/media_galleries/fileapi/device_media_async_file_util.h" |
| #include "storage/browser/fileapi/file_stream_reader.h" |
| #include "storage/browser/fileapi/file_stream_writer.h" |
| #include "storage/browser/fileapi/file_system_url.h" |
| |
| namespace chromeos { |
| |
| MTPFileSystemBackendDelegate::MTPFileSystemBackendDelegate( |
| const base::FilePath& storage_partition_path) |
| : device_media_async_file_util_( |
| DeviceMediaAsyncFileUtil::Create(storage_partition_path, |
| NO_MEDIA_FILE_VALIDATION)), |
| mtp_watcher_manager_( |
| new MTPWatcherManager(device_media_async_file_util_.get())) { |
| } |
| |
| MTPFileSystemBackendDelegate::~MTPFileSystemBackendDelegate() { |
| } |
| |
| storage::AsyncFileUtil* MTPFileSystemBackendDelegate::GetAsyncFileUtil( |
| storage::FileSystemType type) { |
| DCHECK_EQ(storage::kFileSystemTypeDeviceMediaAsFileStorage, type); |
| |
| return device_media_async_file_util_.get(); |
| } |
| |
| std::unique_ptr<storage::FileStreamReader> |
| MTPFileSystemBackendDelegate::CreateFileStreamReader( |
| const storage::FileSystemURL& url, |
| int64_t offset, |
| int64_t max_bytes_to_read, |
| const base::Time& expected_modification_time, |
| storage::FileSystemContext* context) { |
| DCHECK_EQ(storage::kFileSystemTypeDeviceMediaAsFileStorage, url.type()); |
| |
| return device_media_async_file_util_->GetFileStreamReader( |
| url, offset, expected_modification_time, context); |
| } |
| |
| std::unique_ptr<storage::FileStreamWriter> |
| MTPFileSystemBackendDelegate::CreateFileStreamWriter( |
| const storage::FileSystemURL& url, |
| int64_t offset, |
| storage::FileSystemContext* context) { |
| DCHECK_EQ(storage::kFileSystemTypeDeviceMediaAsFileStorage, url.type()); |
| |
| // TODO(kinaba): support writing. |
| return std::unique_ptr<storage::FileStreamWriter>(); |
| } |
| |
| storage::WatcherManager* MTPFileSystemBackendDelegate::GetWatcherManager( |
| storage::FileSystemType type) { |
| DCHECK_EQ(storage::kFileSystemTypeDeviceMediaAsFileStorage, type); |
| return mtp_watcher_manager_.get(); |
| } |
| |
| void MTPFileSystemBackendDelegate::GetRedirectURLForContents( |
| const storage::FileSystemURL& url, |
| const storage::URLCallback& callback) { |
| DCHECK_EQ(storage::kFileSystemTypeDeviceMediaAsFileStorage, url.type()); |
| |
| callback.Run(GURL()); |
| } |
| |
| } // namespace chromeos |