Move ClientSession's input logic into separate components.

remoting/protocol/key_event_tracker.cc

-// Copyright (c) 2012 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 "remoting/protocol/key_event_tracker.h"
-
-#include "base/logging.h"
-#include "remoting/proto/event.pb.h"
-
-namespace remoting {
-namespace protocol {
-
-KeyEventTracker::KeyEventTracker(InputStub* input_stub)
-    : input_stub_(input_stub) {
-}
-
-KeyEventTracker::~KeyEventTracker() {
-}
-
-void KeyEventTracker::InjectKeyEvent(const KeyEvent& event) {
-  DCHECK(event.has_pressed());
-  DCHECK(event.has_keycode());
-  if (event.pressed()) {
-    pressed_keys_.insert(event.keycode());
-  } else {
-    pressed_keys_.erase(event.keycode());
-  }
-  input_stub_->InjectKeyEvent(event);
-}
-
-void KeyEventTracker::InjectMouseEvent(const MouseEvent& event) {
-  input_stub_->InjectMouseEvent(event);
-}
-
-void KeyEventTracker::ReleaseAllKeys() {
-  std::set<int>::iterator i;
-  for (i = pressed_keys_.begin(); i != pressed_keys_.end(); ++i) {
-    KeyEvent event;
-    event.set_keycode(*i);
-    event.set_pressed(false);
-    input_stub_->InjectKeyEvent(event);
-  }
-  pressed_keys_.clear();
-}
-
-}  // namespace protocol
-}  // namespace remoting