| // Copyright 2013 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. |
| |
| #ifndef CHROME_BROWSER_SAFE_JSON_PARSER_H_ |
| #define CHROME_BROWSER_SAFE_JSON_PARSER_H_ |
| |
| #include <string> |
| |
| #include "base/basictypes.h" |
| #include "base/callback.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "content/public/browser/utility_process_host_client.h" |
| |
| namespace base { |
| class ListValue; |
| class Value; |
| } |
| |
| namespace IPC { |
| class Message; |
| } |
| |
| // SafeJsonParser parses a given JSON safely via a utility process. The object |
| // is ref-counted and kept alive after Start() is called until one of the two |
| // callbacks is called. |
| class SafeJsonParser : public content::UtilityProcessHostClient { |
| public: |
| typedef base::Callback<void(scoped_ptr<base::Value>)> SuccessCallback; |
| typedef base::Callback<void(const std::string&)> ErrorCallback; |
| |
| SafeJsonParser(const std::string& unsafe_json, |
| const SuccessCallback& success_callback, |
| const ErrorCallback& error_callback); |
| |
| void Start(); |
| |
| private: |
| virtual ~SafeJsonParser(); |
| |
| void StartWorkOnIOThread(); |
| |
| void OnJSONParseSucceeded(const base::ListValue& wrapper); |
| void OnJSONParseFailed(const std::string& error_message); |
| |
| void ReportResults(); |
| void ReportResultOnUIThread(); |
| |
| // Implementing pieces of the UtilityProcessHostClient interface. |
| virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE; |
| |
| const std::string unsafe_json_; |
| SuccessCallback success_callback_; |
| ErrorCallback error_callback_; |
| |
| scoped_ptr<base::Value> parsed_json_; |
| std::string error_; |
| |
| DISALLOW_COPY_AND_ASSIGN(SafeJsonParser); |
| }; |
| |
| #endif // CHROME_BROWSER_SAFE_JSON_PARSER_H_ |