remoting/protocol/content_description.h

   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
  15 namespace buzz {
  16 class XmlElement;
  17 }  // namespace buzz
  18
  19 namespace remoting {
  20 namespace 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.
  27 class 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::vector<ChannelConfig>* const configs);
  59 };
  60
  61 }  // namespace protocol
  62 }  // namespace remoting
  63
  64 #endif  // REMOTING_PROTOCOL_CONTENT_DESCRIPTION_H_