Refactoring of the client-side input pipeline and scaling dimension management.

remoting/protocol/key_event_tracker.cc

Index: remoting/protocol/key_event_tracker.cc
diff --git a/remoting/protocol/key_event_tracker.cc b/remoting/protocol/key_event_tracker.cc
new file mode 100644
index 0000000000000000000000000000000000000000..a2aa836bb1c3f4e147227f62098278619ac283a6
--- /dev/null
+++ b/remoting/protocol/key_event_tracker.cc
@@ -0,0 +1,48 @@
+// 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 "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() {
+  DCHECK(pressed_keys_.empty());
+}
+
+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