Upstream version 9.38.198.0
[platform/framework/web/crosswalk.git] / src / content / browser / devtools / devtools_protocol.h
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.
4
5 #ifndef CONTENT_BROWSER_DEVTOOLS_DEVTOOLS_PROTOCOL_H_
6 #define CONTENT_BROWSER_DEVTOOLS_DEVTOOLS_PROTOCOL_H_
7
8 #include <map>
9 #include <string>
10
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"
17
18 namespace content {
19
20 // Utility classes for processing DevTools remote debugging messages.
21 // https://developers.google.com/chrome-developer-tools/docs/debugger-protocol
22 class DevToolsProtocol {
23  public:
24   typedef base::Callback<void(const std::string& message)> Notifier;
25
26   class Response;
27
28   class Message : public base::RefCountedThreadSafe<Message> {
29    public:
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;
34
35    protected:
36     friend class base::RefCountedThreadSafe<Message>;
37     virtual ~Message();
38     Message(const std::string& method,
39             base::DictionaryValue* params);
40
41     std::string domain_;
42     std::string method_;
43     scoped_ptr<base::DictionaryValue> params_;
44
45    private:
46     DISALLOW_COPY_AND_ASSIGN(Message);
47   };
48
49   class Command : public Message {
50    public:
51     int id() { return id_; }
52
53     virtual std::string Serialize() OVERRIDE;
54
55     // Creates success response. Takes ownership of |result|.
56     scoped_refptr<Response> SuccessResponse(base::DictionaryValue* result);
57
58     // Creates error response.
59     scoped_refptr<Response> InternalErrorResponse(const std::string& message);
60
61     // Creates error response.
62     scoped_refptr<Response> InvalidParamResponse(const std::string& param);
63
64     // Creates error response.
65     scoped_refptr<Response> NoSuchMethodErrorResponse();
66
67     // Creates error response.
68     scoped_refptr<Response> ServerErrorResponse(const std::string& message);
69
70     // Creates async response promise.
71     scoped_refptr<Response> AsyncResponsePromise();
72
73    protected:
74     virtual  ~Command();
75
76    private:
77     friend class DevToolsProtocol;
78     Command(int id, const std::string& method,
79             base::DictionaryValue* params);
80
81     int id_;
82
83     DISALLOW_COPY_AND_ASSIGN(Command);
84   };
85
86   class Response : public base::RefCountedThreadSafe<Response> {
87    public:
88     std::string Serialize();
89
90     bool is_async_promise() { return is_async_promise_; }
91
92    private:
93     friend class base::RefCountedThreadSafe<Response>;
94     friend class Command;
95     friend class DevToolsProtocol;
96     virtual  ~Response();
97
98     Response(int id, base::DictionaryValue* result);
99     Response(int id, int error_code, const std::string& error_message);
100
101     int id_;
102     scoped_ptr<base::DictionaryValue> result_;
103     int error_code_;
104     std::string error_message_;
105     bool is_async_promise_;
106
107     DISALLOW_COPY_AND_ASSIGN(Response);
108   };
109
110   class Notification : public Message {
111    public:
112
113     virtual std::string Serialize() OVERRIDE;
114
115    private:
116     friend class DevToolsProtocol;
117     virtual ~Notification();
118
119     // Takes ownership of |params|.
120     Notification(const std::string& method,
121                  base::DictionaryValue* params);
122
123     DISALLOW_COPY_AND_ASSIGN(Notification);
124   };
125
126   class CONTENT_EXPORT Handler {
127    public:
128     typedef base::Callback<scoped_refptr<DevToolsProtocol::Response>(
129         scoped_refptr<DevToolsProtocol::Command> command)> CommandHandler;
130     typedef base::Callback<void(
131         scoped_refptr<DevToolsProtocol::Notification> notification)>
132             NotificationHandler;
133
134     virtual ~Handler();
135
136     virtual scoped_refptr<DevToolsProtocol::Response> HandleCommand(
137         scoped_refptr<DevToolsProtocol::Command> command);
138
139     virtual void HandleNotification(
140         scoped_refptr<DevToolsProtocol::Notification> notification);
141
142     void SetNotifier(const Notifier& notifier);
143
144    protected:
145     Handler();
146
147     void RegisterCommandHandler(const std::string& command,
148                                 const CommandHandler& handler);
149
150     void RegisterNotificationHandler(const std::string& notification,
151                                      const NotificationHandler& handler);
152
153     // Sends notification to the client. Takes ownership of |params|.
154     void SendNotification(const std::string& method,
155                           base::DictionaryValue* params);
156
157     void SendAsyncResponse(scoped_refptr<DevToolsProtocol::Response> response);
158
159     // Sends message to client, the caller is presumed to properly
160     // format the message.
161     void SendRawMessage(const std::string& message);
162
163    private:
164     typedef std::map<std::string, CommandHandler> CommandHandlers;
165     typedef std::map<std::string, NotificationHandler> NotificationHandlers;
166
167     Notifier notifier_;
168     CommandHandlers command_handlers_;
169     NotificationHandlers notification_handlers_;
170
171     DISALLOW_COPY_AND_ASSIGN(Handler);
172   };
173
174   CONTENT_EXPORT static base::DictionaryValue* ParseMessage(
175       const std::string& json,
176       std::string* error_response);
177
178   CONTENT_EXPORT static scoped_refptr<Command> ParseCommand(
179       const std::string& json,
180       std::string* error_response);
181
182   CONTENT_EXPORT static scoped_refptr<Command> ParseCommand(
183       base::DictionaryValue* command_dict,
184       std::string* error_response);
185
186   CONTENT_EXPORT static scoped_refptr<Command> CreateCommand(
187       int id,
188       const std::string& method,
189       base::DictionaryValue* params);
190
191   CONTENT_EXPORT static scoped_refptr<Response> ParseResponse(
192       base::DictionaryValue* response_dict);
193
194   static scoped_refptr<Notification> ParseNotification(
195       const std::string& json);
196
197   static scoped_refptr<Notification> CreateNotification(
198       const std::string& method, base::DictionaryValue* params);
199
200   DevToolsProtocol() {}
201   ~DevToolsProtocol() {}
202 };
203
204 }  // namespace content
205
206 #endif  // CONTENT_BROWSER_DEVTOOLS_DEVTOOLS_PROTOCOL_H_