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 15 class FilePath; 16 class GURL; 17 namespace net { 18 class FileStream; 19 } 20 21 namespace 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 32 bool 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. 40 net::FileStream* CreateFileStreamForDrop(FilePath* file_path); 41 42 // Implementation of DownloadFileObserver to finalize the download process. 43 class 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