client-side wheel mouse support

remoting/client/input_handler.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 "remoting/client/input_handler.h"
 
 #include "remoting/client/chromoting_view.h"
 #include "remoting/proto/event.pb.h"
 #include "remoting/protocol/connection_to_host.h"
 #include "remoting/protocol/input_stub.h"
@@ skipping 44 matching lines @@
                                         MouseEvent::MouseButton button) {
   protocol::InputStub* stub = connection_->input_stub();
   if (stub) {
     MouseEvent event;
     event.set_button(button);
     event.set_button_down(button_down);
     stub->InjectMouseEvent(event);
   }
 }
 
+void InputHandler::SendMouseWheelEvent(int dx, int dy) {
+  protocol::InputStub* stub = connection_->input_stub();
+  if (stub) {
+    MouseEvent event;
+    event.set_wheel_offset_x(dx);
+    event.set_wheel_offset_y(dy);
+    stub->InjectMouseEvent(event);
+  }
+}
+
 void InputHandler::ReleaseAllKeys() {
   std::set<int> pressed_keys_copy = pressed_keys_;
   std::set<int>::iterator i;
   for (i = pressed_keys_copy.begin(); i != pressed_keys_copy.end(); ++i) {
     SendKeyEvent(false, *i);
   }
   pressed_keys_.clear();
 }
 
 }  // namespace remoting