1 // Copyright 2013 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_MEDIA_GALLERIES_FILEAPI_SAFE_ITUNES_PREF_PARSER_WIN_H_ 6 #define CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_SAFE_ITUNES_PREF_PARSER_WIN_H_ 7 8 #include <string> 9 10 #include "base/callback.h" 11 #include "base/compiler_specific.h" 12 #include "content/public/browser/utility_process_host_client.h" 13 14 namespace base { 15 class FilePath; 16 } 17 18 namespace IPC { 19 class Message; 20 } 21 22 namespace itunes { 23 24 // SafeITunesPrefParserWin parses the given iTunes preferences XML data safely 25 // via a utility process. The SafeITunesPrefParserWin object is ref-counted and 26 // kept alive after Start() is called until the ParserCallback is called. 27 // The ParserCallback is guaranteed to be called eventually either when the 28 // utility process replies or when it dies. 29 class SafeITunesPrefParserWin : public content::UtilityProcessHostClient { 30 public: 31 typedef base::Callback<void(const base::FilePath&)> ParserCallback; 32 33 SafeITunesPrefParserWin(const std::string& unsafe_xml, 34 const ParserCallback& callback); 35 36 void Start(); 37 38 private: 39 enum ParserState { 40 INITIAL_STATE, 41 STARTED_PARSING_STATE, 42 FINISHED_PARSING_STATE, 43 }; 44 45 // Private because content::UtilityProcessHostClient is ref-counted. 46 virtual ~SafeITunesPrefParserWin(); 47 48 void StartWorkOnIOThread(); 49 50 // Handles the results from OnProcessCrashed() and OnMessageReceived() on 51 // the IO thread. 52 void OnGotITunesDirectory(const base::FilePath& library_file); 53 54 // UtilityProcessHostClient implementation. 55 virtual void OnProcessCrashed(int exit_code) OVERRIDE; 56 virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE; 57 58 const std::string unsafe_xml_; 59 const ParserCallback callback_; 60 61 // Verifies the messages from the utility process came at the right time. 62 // Initialized on the FILE thread, but only accessed on the IO thread. 63 ParserState parser_state_; 64 65 DISALLOW_COPY_AND_ASSIGN(SafeITunesPrefParserWin); 66 }; 67 68 } // namespace itunes 69 70 #endif // CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_SAFE_ITUNES_PREF_PARSER_WIN_H_ 71