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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. | |
4 | |
5 #ifndef REMOTING_HOST_NATIVE_MESSAGING_NATIVE_MESSAGING_CHANNEL_H_ | |
6 #define REMOTING_HOST_NATIVE_MESSAGING_NATIVE_MESSAGING_CHANNEL_H_ | |
7 | |
8 #include "base/callback.h" | |
9 #include "base/files/file.h" | |
10 #include "base/memory/ref_counted.h" | |
11 #include "base/memory/scoped_ptr.h" | |
12 #include "base/memory/weak_ptr.h" | |
13 #include "base/threading/non_thread_safe.h" | |
14 #include "remoting/host/native_messaging/native_messaging_reader.h" | |
15 #include "remoting/host/native_messaging/native_messaging_writer.h" | |
16 | |
17 namespace base { | |
18 class DictionaryValue; | |
19 class Value; | |
20 } // namespace base | |
21 | |
22 namespace remoting { | |
23 | |
24 // Implements reading messages and sending responses across the native messaging | |
25 // host pipe. | |
26 class NativeMessagingChannel : public base::NonThreadSafe { | |
27 public: | |
28 // Used to send a message to the client app. | |
29 typedef base::Callback<void(scoped_ptr<base::DictionaryValue> message)> | |
30 SendMessageCallback; | |
31 | |
32 // Constructs an object taking the ownership of |input| and |output|. Closes | |
33 // |input| and |output| to prevent the caller from using them. | |
34 NativeMessagingChannel(base::File input, base::File output); | |
35 ~NativeMessagingChannel(); | |
36 | |
37 // Starts reading and processing messages. | |
38 void Start(const SendMessageCallback& received_message, | |
39 const base::Closure& quit_closure); | |
40 | |
41 // Sends a message to the client app. | |
42 void SendMessage(scoped_ptr<base::DictionaryValue> message); | |
43 | |
44 private: | |
45 // Processes a message received from the client app. | |
46 void ProcessMessage(scoped_ptr<base::Value> message); | |
47 | |
48 // Initiates shutdown and runs |quit_closure| if there are no pending requests | |
49 // left. | |
50 void Shutdown(); | |
51 | |
52 base::Closure quit_closure_; | |
53 | |
54 NativeMessagingReader native_messaging_reader_; | |
55 scoped_ptr<NativeMessagingWriter> native_messaging_writer_; | |
56 | |
57 // The callback to invoke when a message is received. | |
58 SendMessageCallback received_message_; | |
59 | |
60 base::WeakPtr<NativeMessagingChannel> weak_ptr_; | |
61 base::WeakPtrFactory<NativeMessagingChannel> weak_factory_; | |
62 | |
63 DISALLOW_COPY_AND_ASSIGN(NativeMessagingChannel); | |
64 }; | |
65 | |
66 } // namespace remoting | |
67 | |
68 #endif // REMOTING_HOST_NATIVE_MESSAGING_NATIVE_MESSAGING_CHANNEL_H_ | |
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