1 // Copyright (c) 2013 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 WEBKIT_BROWSER_FILEAPI_UPLOAD_FILE_SYSTEM_FILE_ELEMENT_READER_H_
6 #define WEBKIT_BROWSER_FILEAPI_UPLOAD_FILE_SYSTEM_FILE_ELEMENT_READER_H_
8 #include "base/memory/weak_ptr.h"
9 #include "base/time/time.h"
10 #include "net/base/upload_element_reader.h"
12 #include "webkit/browser/webkit_storage_browser_export.h"
14 namespace webkit_blob {
15 class FileStreamReader;
20 class FileSystemContext;
22 // An UploadElementReader implementation for filesystem file.
23 class WEBKIT_STORAGE_BROWSER_EXPORT UploadFileSystemFileElementReader
24 : public net::UploadElementReader {
26 UploadFileSystemFileElementReader(
27 FileSystemContext* file_system_context,
31 const base::Time& expected_modification_time);
32 virtual ~UploadFileSystemFileElementReader();
34 // UploadElementReader overrides:
35 virtual int Init(const net::CompletionCallback& callback) OVERRIDE;
36 virtual uint64 GetContentLength() const OVERRIDE;
37 virtual uint64 BytesRemaining() const OVERRIDE;
38 virtual int Read(net::IOBuffer* buf,
40 const net::CompletionCallback& callback) OVERRIDE;
43 void OnGetLength(const net::CompletionCallback& callback, int64 result);
44 void OnRead(const net::CompletionCallback& callback, int result);
46 scoped_refptr<FileSystemContext> file_system_context_;
48 const uint64 range_offset_;
49 const uint64 range_length_;
50 const base::Time expected_modification_time_;
52 scoped_ptr<webkit_blob::FileStreamReader> stream_reader_;
54 uint64 stream_length_;
57 base::WeakPtrFactory<UploadFileSystemFileElementReader> weak_ptr_factory_;
59 DISALLOW_COPY_AND_ASSIGN(UploadFileSystemFileElementReader);
62 } // namespace fileapi
64 #endif // WEBKIT_BROWSER_FILEAPI_UPLOAD_FILE_SYSTEM_FILE_ELEMENT_READER_H_