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.
5 #ifndef CONTENT_BROWSER_FILEAPI_UPLOAD_FILE_SYSTEM_FILE_ELEMENT_READER_H_
6 #define CONTENT_BROWSER_FILEAPI_UPLOAD_FILE_SYSTEM_FILE_ELEMENT_READER_H_
8 #include "base/memory/weak_ptr.h"
9 #include "base/time/time.h"
10 #include "content/common/content_export.h"
11 #include "net/base/upload_element_reader.h"
15 class FileStreamReader;
19 class FileSystemContext;
24 // An UploadElementReader implementation for filesystem file.
25 class CONTENT_EXPORT UploadFileSystemFileElementReader :
26 NON_EXPORTED_BASE(public net::UploadElementReader) {
28 UploadFileSystemFileElementReader(
29 storage::FileSystemContext* file_system_context,
33 const base::Time& expected_modification_time);
34 ~UploadFileSystemFileElementReader() override;
36 // UploadElementReader overrides:
37 int Init(const net::CompletionCallback& callback) override;
38 uint64 GetContentLength() const override;
39 uint64 BytesRemaining() const override;
40 int Read(net::IOBuffer* buf,
42 const net::CompletionCallback& callback) override;
45 void OnGetLength(const net::CompletionCallback& callback, int64 result);
46 void OnRead(const net::CompletionCallback& callback, int result);
48 scoped_refptr<storage::FileSystemContext> file_system_context_;
50 const uint64 range_offset_;
51 const uint64 range_length_;
52 const base::Time expected_modification_time_;
54 scoped_ptr<storage::FileStreamReader> stream_reader_;
56 uint64 stream_length_;
59 base::WeakPtrFactory<UploadFileSystemFileElementReader> weak_ptr_factory_;
61 DISALLOW_COPY_AND_ASSIGN(UploadFileSystemFileElementReader);
64 } // namespace content
66 #endif // CONTENT_BROWSER_FILEAPI_UPLOAD_FILE_SYSTEM_FILE_ELEMENT_READER_H_