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.
5 #ifndef COMPONENTS_SAFE_JSON_PARSER_SAFE_JSON_PARSER_H_
6 #define COMPONENTS_SAFE_JSON_PARSER_SAFE_JSON_PARSER_H_
10 #include "base/basictypes.h"
11 #include "base/callback.h"
12 #include "base/memory/scoped_ptr.h"
13 #include "content/public/browser/utility_process_host_client.h"
24 namespace safe_json_parser
{
26 // SafeJsonParser parses a given JSON safely via a utility process. The object
27 // is ref-counted and kept alive after Start() is called until one of the two
28 // callbacks is called.
29 class SafeJsonParser
: public content::UtilityProcessHostClient
{
31 typedef base::Callback
<void(scoped_ptr
<base::Value
>)> SuccessCallback
;
32 typedef base::Callback
<void(const std::string
&)> ErrorCallback
;
34 SafeJsonParser(const std::string
& unsafe_json
,
35 const SuccessCallback
& success_callback
,
36 const ErrorCallback
& error_callback
);
41 ~SafeJsonParser() override
;
43 void StartWorkOnIOThread();
45 void OnJSONParseSucceeded(const base::ListValue
& wrapper
);
46 void OnJSONParseFailed(const std::string
& error_message
);
49 void ReportResultOnUIThread();
51 // Implementing pieces of the UtilityProcessHostClient interface.
52 bool OnMessageReceived(const IPC::Message
& message
) override
;
54 const std::string unsafe_json_
;
55 SuccessCallback success_callback_
;
56 ErrorCallback error_callback_
;
58 scoped_ptr
<base::Value
> parsed_json_
;
61 DISALLOW_COPY_AND_ASSIGN(SafeJsonParser
);
64 } // namespace safe_json_parser
66 #endif // COMPONENTS_SAFE_JSON_PARSER_SAFE_JSON_PARSER_H_