1// Copyright (c) 2012 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_PROTOCOL_CONTENT_DESCRIPTION_H_
6#define REMOTING_PROTOCOL_CONTENT_DESCRIPTION_H_
7
8#include <string>
9
10#include "base/memory/scoped_ptr.h"
11#include "base/memory/ref_counted.h"
12#include "remoting/protocol/session_config.h"
13#include "third_party/libjingle/source/talk/p2p/base/sessiondescription.h"
14
15namespace buzz {
16class XmlElement;
17}  // namespace buzz
18
19namespace remoting {
20namespace protocol {
21
22// ContentDescription used for chromoting sessions. It contains the information
23// from the content description stanza in the session intialization handshake.
24//
25// This class also provides a type abstraction so that the Chromotocol Session
26// interface does not need to depend on libjingle.
27class ContentDescription : public cricket::ContentDescription {
28 public:
29  static const char kChromotingContentName[];
30
31  ContentDescription(scoped_ptr<CandidateSessionConfig> config,
32                     scoped_ptr<buzz::XmlElement> authenticator_message);
33  virtual ~ContentDescription();
34
35  virtual ContentDescription* Copy() const OVERRIDE;
36
37  const CandidateSessionConfig* config() const {
38    return candidate_config_.get();
39  }
40
41  const buzz::XmlElement* authenticator_message() const {
42    return authenticator_message_.get();
43  }
44
45  buzz::XmlElement* ToXml() const;
46
47  static scoped_ptr<ContentDescription> ParseXml(
48      const buzz::XmlElement* element);
49
50 private:
51  scoped_ptr<const CandidateSessionConfig> candidate_config_;
52  scoped_ptr<const buzz::XmlElement> authenticator_message_;
53
54  static bool ParseChannelConfigs(const buzz::XmlElement* const element,
55                                  const char tag_name[],
56                                  bool codec_required,
57                                  bool optional,
58                                  std::list<ChannelConfig>* const configs);
59};
60
61}  // namespace protocol
62}  // namespace remoting
63
64#endif  // REMOTING_PROTOCOL_CONTENT_DESCRIPTION_H_
65