automation_provider_json.cc revision c407dc5cd9bdc5668497f21b26b09d988ab439de 
1// Copyright (c) 2010 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#include "chrome/browser/automation/automation_provider_json.h"
6
7#include "base/json/json_writer.h"
8#include "base/json/string_escape.h"
9#include "chrome/test/automation/automation_messages.h"
10
11namespace {
12
13// Util for creating a JSON error return string (dict with key
14// 'error' and error string value).  No need to quote input.
15std::string JSONErrorString(const std::string& err) {
16  std::string prefix = "{\"error\": \"";
17  std::string no_quote_err;
18  std::string suffix = "\"}";
19
20  base::JsonDoubleQuote(err, false, &no_quote_err);
21  return prefix + no_quote_err + suffix;
22}
23
24}  // namespace
25
26AutomationJSONReply::AutomationJSONReply(AutomationProvider* provider,
27                                         IPC::Message* reply_message)
28  : provider_(provider),
29    message_(reply_message) {
30}
31
32AutomationJSONReply::~AutomationJSONReply() {
33  DCHECK(!message_) << "JSON automation request not replied!";
34}
35
36void AutomationJSONReply::SendSuccess(const Value* value) {
37  DCHECK(message_) << "Resending reply for JSON automation request";
38  std::string json_string = "{}";
39  if (value)
40    base::JSONWriter::Write(value, false, &json_string);
41  AutomationMsg_SendJSONRequest::WriteReplyParams(
42      message_, json_string, true);
43  provider_->Send(message_);
44  message_ = NULL;
45}
46
47void AutomationJSONReply::SendError(const std::string& error_message) {
48  DCHECK(message_) << "Resending reply for JSON automation request";
49  std::string json_string = JSONErrorString(error_message);
50  AutomationMsg_SendJSONRequest::WriteReplyParams(
51      message_, json_string, false);
52  provider_->Send(message_);
53  message_ = NULL;
54}
55
56