Refactor channel dispatchers on the host side.

remoting/protocol/host_message_dispatcher.cc

-// Copyright (c) 2011 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.
-
-#include "base/memory/ref_counted.h"
-#include "net/base/io_buffer.h"
-#include "remoting/proto/control.pb.h"
-#include "remoting/proto/event.pb.h"
-#include "remoting/proto/internal.pb.h"
-#include "remoting/protocol/connection_to_client.h"
-#include "remoting/protocol/host_message_dispatcher.h"
-#include "remoting/protocol/host_stub.h"
-#include "remoting/protocol/input_stub.h"
-#include "remoting/protocol/message_reader.h"
-#include "remoting/protocol/session.h"
-
-namespace remoting {
-namespace protocol {
-
-HostMessageDispatcher::HostMessageDispatcher()
-    : connection_(NULL),
-      host_stub_(NULL),
-      input_stub_(NULL) {
-}
-
-HostMessageDispatcher::~HostMessageDispatcher() {
-}
-
-void HostMessageDispatcher::Initialize(
-    ConnectionToClient* connection,
-    HostStub* host_stub, InputStub* input_stub) {
-  if (!connection || !host_stub || !input_stub ||
-      !connection->session()->event_channel() ||
-      !connection->session()->control_channel()) {
-    return;
-  }
-
-  control_message_reader_.reset(new ProtobufMessageReader<ControlMessage>());
-  event_message_reader_.reset(new ProtobufMessageReader<EventMessage>());
-  connection_ = connection;
-  host_stub_ = host_stub;
-  input_stub_ = input_stub;
-
-  // Initialize the readers on the sockets provided by channels.
-  event_message_reader_->Init(
-      connection->session()->event_channel(),
-      base::Bind(&HostMessageDispatcher::OnEventMessageReceived,
-                 base::Unretained(this)));
-  control_message_reader_->Init(
-      connection->session()->control_channel(),
-      base::Bind(&HostMessageDispatcher::OnControlMessageReceived,
-                 base::Unretained(this)));
-}
-
-void HostMessageDispatcher::OnControlMessageReceived(
-    ControlMessage* message, const base::Closure& done_task) {
-  LOG(WARNING) << "Invalid control message received.";
-  done_task.Run();
-}
-
-void HostMessageDispatcher::OnEventMessageReceived(
-    EventMessage* message, const base::Closure& done_task) {
-  base::ScopedClosureRunner done_runner(done_task);
-
-  connection_->UpdateSequenceNumber(message->sequence_number());
-
-  if (message->has_key_event()) {
-    const KeyEvent& event = message->key_event();
-    if (event.has_keycode() && event.has_pressed()) {
-      input_stub_->InjectKeyEvent(event);
-      return;
-    }
-  } else if (message->has_mouse_event()) {
-    input_stub_->InjectMouseEvent(message->mouse_event());
-    return;
-  }
-
-  LOG(WARNING) << "Unknown event message received.";
-}
-
-}  // namespace protocol
-}  // namespace remoting