Adding the base ChromotingInstance implementation and unittests. This class will be used by the ap…

remoting/protocol/connection_to_host_impl.h

+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef REMOTING_PROTOCOL_CONNECTION_TO_HOST_IMPL_H_
+#define REMOTING_PROTOCOL_CONNECTION_TO_HOST_IMPL_H_
+
+#include <set>
+#include <string>
+
+#include "base/callback_forward.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/threading/non_thread_safe.h"
+#include "remoting/proto/internal.pb.h"
+#include "remoting/protocol/channel_dispatcher_base.h"
+#include "remoting/protocol/clipboard_filter.h"
+#include "remoting/protocol/connection_to_host.h"
+#include "remoting/protocol/errors.h"
+#include "remoting/protocol/input_filter.h"
+#include "remoting/protocol/message_reader.h"
+#include "remoting/protocol/monitored_video_stub.h"
+#include "remoting/protocol/session.h"
+#include "remoting/protocol/session_config.h"
+#include "remoting/protocol/session_manager.h"
+#include "remoting/signaling/signal_strategy.h"
+
+namespace remoting {
+
+class XmppProxy;
+class VideoPacket;
+
+namespace protocol {
+
+class AudioReader;
+class AudioStub;
+class Authenticator;
+class ClientControlDispatcher;
+class ClientEventDispatcher;
+class ClientStub;
+class ClipboardStub;
+class HostStub;
+class InputStub;
+class SessionConfig;
+class TransportFactory;
+class ClientVideoDispatcher;
+class VideoStub;

[Sergey Ulanov, 2015/03/11 20:22:17]

Many of these classes are already forward-declared in connection_to_host.h . you
don't need to declare them again here.

+
+class ConnectionToHostImpl : public ConnectionToHost,
+                             public SignalStrategy::Listener,
+                             public SessionManager::Listener,
+                             public Session::EventHandler,
+                             public ChannelDispatcherBase::EventHandler,
+                             public base::NonThreadSafe {
+ public:
+  ConnectionToHostImpl();
+  ~ConnectionToHostImpl() override;
+
+  // ConnectionToHost interface.
+  void set_candidate_config(scoped_ptr<CandidateSessionConfig> config) override;
+  void set_client_stub(ClientStub* client_stub) override;
+  void set_clipboard_stub(ClipboardStub* clipboard_stub) override;
+  void set_video_stub(VideoStub* video_stub) override;
+  void set_audio_stub(AudioStub* audio_stub) override;
+  void Connect(SignalStrategy* signal_strategy,
+               scoped_ptr<TransportFactory> transport_factory,
+               scoped_ptr<Authenticator> authenticator,
+               const std::string& host_jid,
+               HostEventCallback* event_callback) override;
+  const SessionConfig& config() override;
+  ClipboardStub* clipboard_forwarder() override;
+  HostStub* host_stub() override;
+  InputStub* input_stub() override;
+  State state() const override;
+
+  // SignalStrategy::StatusObserver interface.

[Sergey Ulanov, 2015/03/11 20:22:17]

please move all interfaces other than ConnectionToHost to the private section.

+  void OnSignalStrategyStateChange(SignalStrategy::State state) override;
+  bool OnSignalStrategyIncomingStanza(const buzz::XmlElement* stanza) override;
+
+  // SessionManager::Listener interface.
+  void OnSessionManagerReady() override;
+  void OnIncomingSession(
+      Session* session,
+      SessionManager::IncomingSessionResponse* response) override;
+
+  // Session::EventHandler interface.
+  void OnSessionStateChange(Session::State state) override;
+  void OnSessionRouteChange(const std::string& channel_name,
+                            const TransportRoute& route) override;
+
+  // ChannelDispatcherBase::EventHandler interface.
+  void OnChannelInitialized(ChannelDispatcherBase* channel_dispatcher) override;
+  void OnChannelError(ChannelDispatcherBase* channel_dispatcher,
+                      ErrorCode error) override;
+
+  // MonitoredVideoStub::EventHandler interface.
+  virtual void OnVideoChannelStatus(bool active);
+
+ private:
+  void NotifyIfChannelsReady();
+
+  void CloseOnError(ErrorCode error);
+
+  // Stops writing in the channels.
+  void CloseChannels();
+
+  void SetState(State state, ErrorCode error);
+
+  std::string host_jid_;
+  std::string host_public_key_;
+  scoped_ptr<Authenticator> authenticator_;
+
+  HostEventCallback* event_callback_;
+
+  scoped_ptr<CandidateSessionConfig> candidate_config_;
+
+  // Stub for incoming messages.
+  ClientStub* client_stub_;
+  ClipboardStub* clipboard_stub_;
+  AudioStub* audio_stub_;
+
+  SignalStrategy* signal_strategy_;
+  scoped_ptr<SessionManager> session_manager_;
+  scoped_ptr<Session> session_;
+  scoped_ptr<MonitoredVideoStub> monitored_video_stub_;
+
+  scoped_ptr<ClientVideoDispatcher> video_dispatcher_;
+  scoped_ptr<AudioReader> audio_reader_;
+  scoped_ptr<ClientControlDispatcher> control_dispatcher_;
+  scoped_ptr<ClientEventDispatcher> event_dispatcher_;
+  ClipboardFilter clipboard_forwarder_;
+  InputFilter event_forwarder_;
+
+  // Internal state of the connection.
+  State state_;
+  ErrorCode error_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ConnectionToHostImpl);
+};
+
+}  // namespace protocol
+}  // namespace remoting
+
+#endif  // REMOTING_PROTOCOL_CONNECTION_TO_HOST_IMPL_H_