1 // Copyright (c) 2012 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 NET_BASE_PLATFORM_MIME_UTIL_H_ 6 #define NET_BASE_PLATFORM_MIME_UTIL_H_ 7 8 #include <string> 9 10 #include "base/containers/hash_tables.h" 11 #include "base/files/file_path.h" 12 13 namespace net { 14 15 // Encapsulates the platform-specific functionality in mime_util. 16 class PlatformMimeUtil { 17 public: 18 // See documentation for base::GetPreferredExtensionForMimeType [mime_util.h] 19 bool GetPreferredExtensionForMimeType( 20 const std::string& mime_type, 21 base::FilePath::StringType* extension) const; 22 23 // Adds all the extensions that the platform associates with the type 24 // |mime_type| to the set |extensions|. Returns at least the value returned 25 // by GetPreferredExtensionForMimeType. 26 void GetPlatformExtensionsForMimeType( 27 const std::string& mime_type, 28 base::hash_set<base::FilePath::StringType>* extensions) const; 29 30 protected: 31 // Get the mime type (if any) that is associated with the file extension. 32 // Returns true if a corresponding mime type exists. 33 bool GetPlatformMimeTypeFromExtension(const base::FilePath::StringType& ext, 34 std::string* mime_type) const; 35 }; 36 37 } // namespace net 38 39 #endif // NET_BASE_PLATFORM_MIME_UTIL_H_ 40
