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 BASE_NIX_MIME_UTIL_XDG_H_ 6 #define BASE_NIX_MIME_UTIL_XDG_H_ 7 8 #include <string> 9 10 #include "base/base_export.h" 11 #include "build/build_config.h" 12 13 namespace base { 14 15 class FilePath; 16 17 namespace nix { 18 19 // Gets the mime type for a file at |filepath|. 20 // 21 // The mime type is calculated based only on the file name of |filepath|. In 22 // particular |filepath| will not be touched on disk and |filepath| doesn't even 23 // have to exist. This means that the function does not work for directories 24 // (i.e. |filepath| is assumed to be a path to a file). 25 // 26 // Note that this function might need to read from disk the mime-types data 27 // provided by the OS. Therefore this function should not be called from 28 // threads that disallow IO via base::ThreadRestrictions::SetIOAllowed(false). 29 // 30 // If the mime type is unknown, this will return application/octet-stream. 31 BASE_EXPORT std::string GetFileMimeType(const FilePath& filepath); 32 33 } // namespace nix 34 } // namespace base 35 36 #endif // BASE_NIX_MIME_UTIL_XDG_H_ 37