remoting/client/chromoting_client.cc

   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 #include "remoting/client/chromoting_client.h"
   6
   7 #include "base/bind.h"
   8 #include "remoting/base/capabilities.h"
   9 #include "remoting/client/audio_decode_scheduler.h"
  10 #include "remoting/client/audio_player.h"
  11 #include "remoting/client/client_context.h"
  12 #include "remoting/client/client_user_interface.h"
  13 #include "remoting/client/video_renderer.h"
  14 #include "remoting/proto/audio.pb.h"
  15 #include "remoting/proto/video.pb.h"
  16 #include "remoting/protocol/authentication_method.h"
  17 #include "remoting/protocol/connection_to_host.h"
  18 #include "remoting/protocol/host_stub.h"
  19 #include "remoting/protocol/negotiating_client_authenticator.h"
  20 #include "remoting/protocol/session_config.h"
  21 #include "remoting/protocol/transport.h"
  22
  23 namespace remoting {
  24
  25 using protocol::AuthenticationMethod;
  26
  27 ChromotingClient::ChromotingClient(
  28     ClientContext* client_context,
  29     ClientUserInterface* user_interface,
  30     VideoRenderer* video_renderer,
  31     scoped_ptr<AudioPlayer> audio_player)
  32     : task_runner_(client_context->main_task_runner()),
  33       user_interface_(user_interface),
  34       video_renderer_(video_renderer),
  35       host_capabilities_received_(false) {
  36   if (audio_player) {
  37     audio_decode_scheduler_.reset(new AudioDecodeScheduler(
  38         client_context->main_task_runner(),
  39         client_context->audio_decode_task_runner(),
  40         audio_player.Pass()));
  41   }
  42 }
  43
  44 ChromotingClient::~ChromotingClient() {}
  45
  46 void ChromotingClient::SetProtocolConfigForTests(
  47     scoped_ptr<protocol::CandidateSessionConfig> config) {
  48   connection_.set_candidate_config(config.Pass());
  49 }
  50
  51 void ChromotingClient::Start(
  52     SignalStrategy* signal_strategy,
  53     scoped_ptr<protocol::Authenticator> authenticator,
  54     scoped_ptr<protocol::TransportFactory> transport_factory,
  55     const std::string& host_jid,
  56     const std::string& capabilities) {
  57   DCHECK(task_runner_->BelongsToCurrentThread());
  58
  59   local_capabilities_ = capabilities;
  60
  61   connection_.set_client_stub(this);
  62   connection_.set_clipboard_stub(this);
  63   connection_.set_video_stub(video_renderer_);
  64   connection_.set_audio_stub(audio_decode_scheduler_.get());
  65
  66   connection_.Connect(signal_strategy, transport_factory.Pass(),
  67                        authenticator.Pass(), host_jid, this);
  68 }
  69
  70 void ChromotingClient::SetCapabilities(
  71     const protocol::Capabilities& capabilities) {
  72   DCHECK(task_runner_->BelongsToCurrentThread());
  73
  74   // Only accept the first |protocol::Capabilities| message.
  75   if (host_capabilities_received_) {
  76     LOG(WARNING) << "protocol::Capabilities has been received already.";
  77     return;
  78   }
  79
  80   host_capabilities_received_ = true;
  81   if (capabilities.has_capabilities())
  82     host_capabilities_ = capabilities.capabilities();
  83
  84   VLOG(1) << "Host capabilities: " << host_capabilities_;
  85
  86   // Calculate the set of capabilities enabled by both client and host and pass
  87   // it to the webapp.
  88   user_interface_->SetCapabilities(
  89       IntersectCapabilities(local_capabilities_, host_capabilities_));
  90 }
  91
  92 void ChromotingClient::SetPairingResponse(
  93     const protocol::PairingResponse& pairing_response) {
  94   DCHECK(task_runner_->BelongsToCurrentThread());
  95
  96   user_interface_->SetPairingResponse(pairing_response);
  97 }
  98
  99 void ChromotingClient::DeliverHostMessage(
 100     const protocol::ExtensionMessage& message) {
 101   DCHECK(task_runner_->BelongsToCurrentThread());
 102
 103   user_interface_->DeliverHostMessage(message);
 104 }
 105
 106 void ChromotingClient::InjectClipboardEvent(
 107     const protocol::ClipboardEvent& event) {
 108   DCHECK(task_runner_->BelongsToCurrentThread());
 109
 110   user_interface_->GetClipboardStub()->InjectClipboardEvent(event);
 111 }
 112
 113 void ChromotingClient::SetCursorShape(
 114     const protocol::CursorShapeInfo& cursor_shape) {
 115   DCHECK(task_runner_->BelongsToCurrentThread());
 116
 117   user_interface_->GetCursorShapeStub()->SetCursorShape(cursor_shape);
 118 }
 119
 120 void ChromotingClient::OnConnectionState(
 121     protocol::ConnectionToHost::State state,
 122     protocol::ErrorCode error) {
 123   DCHECK(task_runner_->BelongsToCurrentThread());
 124   VLOG(1) << "ChromotingClient::OnConnectionState(" << state << ")";
 125
 126   if (state == protocol::ConnectionToHost::AUTHENTICATED) {
 127     OnAuthenticated();
 128   } else if (state == protocol::ConnectionToHost::CONNECTED) {
 129     OnChannelsConnected();
 130   }
 131   user_interface_->OnConnectionState(state, error);
 132 }
 133
 134 void ChromotingClient::OnConnectionReady(bool ready) {
 135   VLOG(1) << "ChromotingClient::OnConnectionReady(" << ready << ")";
 136   user_interface_->OnConnectionReady(ready);
 137 }
 138
 139 void ChromotingClient::OnRouteChanged(const std::string& channel_name,
 140                                       const protocol::TransportRoute& route) {
 141   VLOG(0) << "Using " << protocol::TransportRoute::GetTypeString(route.type)
 142           << " connection for " << channel_name << " channel";
 143   user_interface_->OnRouteChanged(channel_name, route);
 144 }
 145
 146 void ChromotingClient::OnAuthenticated() {
 147   DCHECK(task_runner_->BelongsToCurrentThread());
 148
 149   // Initialize the decoder.
 150   video_renderer_->OnSessionConfig(connection_.config());
 151   if (connection_.config().is_audio_enabled())
 152     audio_decode_scheduler_->Initialize(connection_.config());
 153
 154 }
 155
 156 void ChromotingClient::OnChannelsConnected() {
 157   DCHECK(task_runner_->BelongsToCurrentThread());
 158
 159   // Negotiate capabilities with the host.
 160   VLOG(1) << "Client capabilities: " << local_capabilities_;
 161
 162   protocol::Capabilities capabilities;
 163   capabilities.set_capabilities(local_capabilities_);
 164   connection_.host_stub()->SetCapabilities(capabilities);
 165 }
 166
 167 }  // namespace remoting