remoting/protocol/host_control_dispatcher.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/protocol/host_control_dispatcher.h"
   6
   7 #include "base/callback_helpers.h"
   8 #include "base/message_loop/message_loop_proxy.h"
   9 #include "net/socket/stream_socket.h"
  10 #include "remoting/base/constants.h"
  11 #include "remoting/proto/control.pb.h"
  12 #include "remoting/proto/internal.pb.h"
  13 #include "remoting/protocol/clipboard_stub.h"
  14 #include "remoting/protocol/host_stub.h"
  15 #include "remoting/protocol/message_serialization.h"
  16
  17 namespace remoting {
  18 namespace protocol {
  19
  20 HostControlDispatcher::HostControlDispatcher()
  21     : ChannelDispatcherBase(kControlChannelName),
  22       clipboard_stub_(NULL),
  23       host_stub_(NULL) {
  24 }
  25
  26 HostControlDispatcher::~HostControlDispatcher() {
  27   writer_.Close();
  28 }
  29
  30 void HostControlDispatcher::OnInitialized() {
  31   reader_.Init(channel(), base::Bind(
  32       &HostControlDispatcher::OnMessageReceived, base::Unretained(this)));
  33   writer_.Init(channel(), BufferedSocketWriter::WriteFailedCallback());
  34 }
  35
  36 void HostControlDispatcher::SetCapabilities(
  37     const Capabilities& capabilities) {
  38   ControlMessage message;
  39   message.mutable_capabilities()->CopyFrom(capabilities);
  40   writer_.Write(SerializeAndFrameMessage(message), base::Closure());
  41 }
  42
  43 void HostControlDispatcher::SetPairingResponse(
  44     const PairingResponse& pairing_response) {
  45   ControlMessage message;
  46   message.mutable_pairing_response()->CopyFrom(pairing_response);
  47   writer_.Write(SerializeAndFrameMessage(message), base::Closure());
  48 }
  49
  50 void HostControlDispatcher::DeliverHostMessage(
  51     const ExtensionMessage& message) {
  52   ControlMessage control_message;
  53   control_message.mutable_extension_message()->CopyFrom(message);
  54   writer_.Write(SerializeAndFrameMessage(control_message), base::Closure());
  55 }
  56
  57 void HostControlDispatcher::InjectClipboardEvent(const ClipboardEvent& event) {
  58   ControlMessage message;
  59   message.mutable_clipboard_event()->CopyFrom(event);
  60   writer_.Write(SerializeAndFrameMessage(message), base::Closure());
  61 }
  62
  63 void HostControlDispatcher::SetCursorShape(
  64     const CursorShapeInfo& cursor_shape) {
  65   ControlMessage message;
  66   message.mutable_cursor_shape()->CopyFrom(cursor_shape);
  67   writer_.Write(SerializeAndFrameMessage(message), base::Closure());
  68 }
  69
  70 void HostControlDispatcher::OnMessageReceived(
  71     scoped_ptr<ControlMessage> message, const base::Closure& done_task) {
  72   DCHECK(clipboard_stub_);
  73   DCHECK(host_stub_);
  74
  75   base::ScopedClosureRunner done_runner(done_task);
  76
  77   if (message->has_clipboard_event()) {
  78     clipboard_stub_->InjectClipboardEvent(message->clipboard_event());
  79   } else if (message->has_client_resolution()) {
  80     host_stub_->NotifyClientResolution(message->client_resolution());
  81   } else if (message->has_video_control()) {
  82     host_stub_->ControlVideo(message->video_control());
  83   } else if (message->has_audio_control()) {
  84     host_stub_->ControlAudio(message->audio_control());
  85   } else if (message->has_capabilities()) {
  86     host_stub_->SetCapabilities(message->capabilities());
  87   } else if (message->has_pairing_request()) {
  88     host_stub_->RequestPairing(message->pairing_request());
  89   } else if (message->has_extension_message()) {
  90     host_stub_->DeliverClientMessage(message->extension_message());
  91   } else {
  92     LOG(WARNING) << "Unknown control message received.";
  93   }
  94 }
  95
  96 }  // namespace protocol
  97 }  // namespace remoting