1 // Copyright (c) 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 CONTENT_BROWSER_DEVTOOLS_DEVTOOLS_PROTOCOL_H_
6 #define CONTENT_BROWSER_DEVTOOLS_DEVTOOLS_PROTOCOL_H_
11 #include "base/basictypes.h"
12 #include "base/callback.h"
13 #include "base/compiler_specific.h"
14 #include "base/memory/ref_counted.h"
15 #include "base/values.h"
16 #include "content/common/content_export.h"
20 // Utility classes for processing DevTools remote debugging messages.
21 // https://developers.google.com/chrome-developer-tools/docs/debugger-protocol
22 class DevToolsProtocol {
24 typedef base::Callback<void(const std::string& message)> Notifier;
28 class Message : public base::RefCountedThreadSafe<Message> {
30 std::string domain() { return domain_; }
31 std::string method() { return method_; }
32 base::DictionaryValue* params() { return params_.get(); }
33 virtual std::string Serialize() = 0;
36 friend class base::RefCountedThreadSafe<Message>;
38 Message(const std::string& method,
39 base::DictionaryValue* params);
43 scoped_ptr<base::DictionaryValue> params_;
46 DISALLOW_COPY_AND_ASSIGN(Message);
49 class Command : public Message {
51 int id() { return id_; }
53 virtual std::string Serialize() OVERRIDE;
55 // Creates success response. Takes ownership of |result|.
56 scoped_refptr<Response> SuccessResponse(base::DictionaryValue* result);
58 // Creates error response.
59 scoped_refptr<Response> InternalErrorResponse(const std::string& message);
61 // Creates error response.
62 scoped_refptr<Response> InvalidParamResponse(const std::string& param);
64 // Creates error response.
65 scoped_refptr<Response> NoSuchMethodErrorResponse();
67 // Creates async response promise.
68 scoped_refptr<Response> AsyncResponsePromise();
74 friend class DevToolsProtocol;
75 Command(int id, const std::string& method,
76 base::DictionaryValue* params);
80 DISALLOW_COPY_AND_ASSIGN(Command);
83 class Response : public base::RefCountedThreadSafe<Response> {
85 std::string Serialize();
87 bool is_async_promise() { return is_async_promise_; }
90 friend class base::RefCountedThreadSafe<Response>;
92 friend class DevToolsProtocol;
95 Response(int id, base::DictionaryValue* result);
96 Response(int id, int error_code, const std::string& error_message);
99 scoped_ptr<base::DictionaryValue> result_;
101 std::string error_message_;
102 bool is_async_promise_;
104 DISALLOW_COPY_AND_ASSIGN(Response);
107 class Notification : public Message {
110 virtual std::string Serialize() OVERRIDE;
113 friend class DevToolsProtocol;
114 virtual ~Notification();
116 // Takes ownership of |params|.
117 Notification(const std::string& method,
118 base::DictionaryValue* params);
120 DISALLOW_COPY_AND_ASSIGN(Notification);
123 class CONTENT_EXPORT Handler {
125 typedef base::Callback<scoped_refptr<DevToolsProtocol::Response>(
126 scoped_refptr<DevToolsProtocol::Command> command)> CommandHandler;
130 virtual scoped_refptr<DevToolsProtocol::Response> HandleCommand(
131 scoped_refptr<DevToolsProtocol::Command> command);
133 void SetNotifier(const Notifier& notifier);
138 void RegisterCommandHandler(const std::string& command,
139 const CommandHandler& handler);
141 // Sends notification to the client. Takes ownership of |params|.
142 void SendNotification(const std::string& method,
143 base::DictionaryValue* params);
145 void SendAsyncResponse(scoped_refptr<DevToolsProtocol::Response> response);
147 // Sends message to client, the caller is presumed to properly
148 // format the message.
149 void SendRawMessage(const std::string& message);
152 typedef std::map<std::string, CommandHandler> CommandHandlers;
155 CommandHandlers command_handlers_;
157 DISALLOW_COPY_AND_ASSIGN(Handler);
160 CONTENT_EXPORT static base::DictionaryValue* ParseMessage(
161 const std::string& json,
162 std::string* error_response);
164 CONTENT_EXPORT static scoped_refptr<Command> ParseCommand(
165 const std::string& json,
166 std::string* error_response);
168 CONTENT_EXPORT static scoped_refptr<Command> ParseCommand(
169 base::DictionaryValue* command_dict,
170 std::string* error_response);
172 CONTENT_EXPORT static scoped_refptr<Command> CreateCommand(
174 const std::string& method,
175 base::DictionaryValue* params);
177 CONTENT_EXPORT static scoped_refptr<Response> ParseResponse(
178 base::DictionaryValue* response_dict);
180 static scoped_refptr<Notification> ParseNotification(
181 const std::string& json);
183 static scoped_refptr<Notification> CreateNotification(
184 const std::string& method, base::DictionaryValue* params);
186 DevToolsProtocol() {}
187 ~DevToolsProtocol() {}
190 } // namespace content
192 #endif // CONTENT_BROWSER_DEVTOOLS_DEVTOOLS_PROTOCOL_H_