Refactor DragDownloadFile so that it can be used by both Windows and MacOSX.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/572014

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@38545 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 48 insertions, 0 deletions

diff --git a/chrome/browser/download/drag_download_util.cc b/chrome/browser/download/drag_download_util.cc
new file mode 100644
index 0000000..ed34e70
--- /dev/null
+++ b/chrome/browser/download/drag_download_util.cc
@@ -0,0 +1,48 @@
+// Copyright (c) 2010 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/download/drag_download_util.h"
+
+#include "base/string_util.h"
+#include "base/utf_string_conversions.h"
+#include "googleurl/src/gurl.h"
+
+namespace drag_download_util {
+
+bool ParseDownloadMetadata(const string16& metadata,
+                           string16* mime_type,
+                           FilePath* file_name,
+                           GURL* url) {
+  const char16 separator = L':';
+
+  size_t mime_type_end_pos = metadata.find(separator);
+  if (mime_type_end_pos == string16::npos)
+    return false;
+
+  size_t file_name_end_pos = metadata.find(separator, mime_type_end_pos + 1);
+  if (file_name_end_pos == string16::npos)
+    return false;
+
+  GURL parsed_url = GURL(metadata.substr(file_name_end_pos + 1));
+  if (!parsed_url.is_valid())
+    return false;
+
+  if (mime_type)
+    *mime_type = metadata.substr(0, mime_type_end_pos);
+  if (file_name) {
+    string16 file_name_str = metadata.substr(
+        mime_type_end_pos + 1, file_name_end_pos - mime_type_end_pos  - 1);
+#if defined(OS_WIN)
+    *file_name = FilePath(file_name_str);
+#else
+    *file_name = FilePath(UTF16ToUTF8(file_name_str));
+#endif
+  }
+  if (url)
+    *url = parsed_url;
+
+  return true;
+}
+
+}  // namespace drag_download_util