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 14namespace base { 15class FilePath; 16} 17 18namespace IPC { 19class Message; 20} 21 22namespace 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. 29class 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