1// Copyright (c) 2011 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#ifndef CHROME_BROWSER_DOWNLOAD_DRAG_DOWNLOAD_UTIL_H_
6#define CHROME_BROWSER_DOWNLOAD_DRAG_DOWNLOAD_UTIL_H_
7#pragma once
8
9#include "base/basictypes.h"
10#include "base/memory/ref_counted.h"
11#include "base/string16.h"
12#include "chrome/browser/download/drag_download_file.h"
13#include "ui/base/dragdrop/download_file_interface.h"
14
15class FilePath;
16class GURL;
17namespace net {
18class FileStream;
19}
20
21namespace drag_download_util {
22
23// Parse the download metadata set in DataTransfer.setData. The metadata
24// consists of a set of the following values separated by ":"
25// * MIME type
26// * File name
27// * URL
28// If the file name contains special characters, they need to be escaped
29// appropriately.
30// For example, we can have
31//   text/plain:example.txt:http://example.com/example.txt
32bool ParseDownloadMetadata(const string16& metadata,
33                           string16* mime_type,
34                           FilePath* file_name,
35                           GURL* url);
36
37// Create a new file at the specified path. If the file already exists, try to
38// insert the sequential unifier to produce a new file, like foo-01.txt.
39// Return a FileStream if successful.
40net::FileStream* CreateFileStreamForDrop(FilePath* file_path);
41
42// Implementation of DownloadFileObserver to finalize the download process.
43class PromiseFileFinalizer : public ui::DownloadFileObserver {
44 public:
45  explicit PromiseFileFinalizer(DragDownloadFile* drag_file_downloader);
46  virtual ~PromiseFileFinalizer();
47
48  // DownloadFileObserver methods.
49  virtual void OnDownloadCompleted(const FilePath& file_path);
50  virtual void OnDownloadAborted();
51
52 private:
53  void Cleanup();
54
55  scoped_refptr<DragDownloadFile> drag_file_downloader_;
56
57  DISALLOW_COPY_AND_ASSIGN(PromiseFileFinalizer);
58};
59
60}  // namespace drag_download_util
61
62#endif  // CHROME_BROWSER_DOWNLOAD_DRAG_DOWNLOAD_UTIL_H_
63