Moving the mouse-wheel processing code out of the FocusManager

chrome/views/widget/widget_win.h

 // Copyright (c) 2006-2008 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.
 
 #ifndef CHROME_VIEWS_WIDGET_WIDGET_WIN_H_
 #define CHROME_VIEWS_WIDGET_WIDGET_WIN_H_
 
 #include <atlbase.h>
 #include <atlcrack.h>
 
@@ skipping 144 matching lines @@
     MESSAGE_HANDLER_EX(WM_NCUAHDRAWCAPTION, OnNCUAHDrawCaption)
     MESSAGE_HANDLER_EX(WM_NCUAHDRAWFRAME, OnNCUAHDrawFrame)
 
     // Vista and newer
     MESSAGE_HANDLER_EX(WM_DWMCOMPOSITIONCHANGED, OnDwmCompositionChanged)
 
     // Non-atlcrack.h handlers
     MESSAGE_HANDLER_EX(WM_GETOBJECT, OnGetObject)
     MESSAGE_HANDLER_EX(WM_NCMOUSELEAVE, OnNCMouseLeave)
     MESSAGE_HANDLER_EX(WM_MOUSELEAVE, OnMouseLeave)
+    MESSAGE_HANDLER_EX(WM_MOUSEWHEEL, OnMouseWheel)
 
     // This list is in _ALPHABETICAL_ order! OR I WILL HURT YOU.
     MSG_WM_ACTIVATE(OnActivate)
     MSG_WM_ACTIVATEAPP(OnActivateApp)
     MSG_WM_APPCOMMAND(OnAppCommand)
     MSG_WM_CANCELMODE(OnCancelMode)
     MSG_WM_CAPTURECHANGED(OnCaptureChanged)
     MSG_WM_CLOSE(OnClose)
     MSG_WM_COMMAND(OnCommand)
     MSG_WM_CREATE(OnCreate)
@@ skipping 10 matching lines @@
     MSG_WM_SYSKEYDOWN(OnKeyDown)
     MSG_WM_SYSKEYUP(OnKeyUp)
     MSG_WM_LBUTTONDBLCLK(OnLButtonDblClk)
     MSG_WM_LBUTTONDOWN(OnLButtonDown)
     MSG_WM_LBUTTONUP(OnLButtonUp)
     MSG_WM_MBUTTONDOWN(OnMButtonDown)
     MSG_WM_MBUTTONUP(OnMButtonUp)
     MSG_WM_MBUTTONDBLCLK(OnMButtonDblClk)
     MSG_WM_MOUSEACTIVATE(OnMouseActivate)
     MSG_WM_MOUSEMOVE(OnMouseMove)
-    MSG_WM_MOUSEWHEEL(OnMouseWheel)
     MSG_WM_MOVE(OnMove)
     MSG_WM_MOVING(OnMoving)
     MSG_WM_NCACTIVATE(OnNCActivate)
     MSG_WM_NCCALCSIZE(OnNCCalcSize)
     MSG_WM_NCHITTEST(OnNCHitTest)
     MSG_WM_NCMOUSEMOVE(OnNCMouseMove)
     MSG_WM_NCLBUTTONDBLCLK(OnNCLButtonDblClk)
     MSG_WM_NCLBUTTONDOWN(OnNCLButtonDown)
     MSG_WM_NCLBUTTONUP(OnNCLButtonUp)
     MSG_WM_NCMBUTTONDBLCLK(OnNCMButtonDblClk)
@@ skipping 171 matching lines @@
   virtual void OnKeyUp(TCHAR c, UINT rep_cnt, UINT flags);
   virtual void OnLButtonDblClk(UINT flags, const CPoint& point);
   virtual void OnLButtonDown(UINT flags, const CPoint& point);
   virtual void OnLButtonUp(UINT flags, const CPoint& point);
   virtual void OnMButtonDblClk(UINT flags, const CPoint& point);
   virtual void OnMButtonDown(UINT flags, const CPoint& point);
   virtual void OnMButtonUp(UINT flags, const CPoint& point);
   virtual LRESULT OnMouseActivate(HWND window, UINT hittest_code, UINT message);
   virtual void OnMouseMove(UINT flags, const CPoint& point);
   virtual LRESULT OnMouseLeave(UINT message, WPARAM w_param, LPARAM l_param);
+  virtual LRESULT OnMouseWheel(UINT message, WPARAM w_param, LPARAM l_param);
   virtual void OnMove(const CPoint& point) { SetMsgHandled(FALSE); }
   virtual void OnMoving(UINT param, const LPRECT new_bounds) { }
-  virtual LRESULT OnMouseWheel(UINT flags, short distance, const CPoint& point);
   virtual LRESULT OnMouseRange(UINT msg, WPARAM w_param, LPARAM l_param);
   virtual LRESULT OnNCActivate(BOOL active) { SetMsgHandled(FALSE); return 0; }
   virtual LRESULT OnNCCalcSize(BOOL w_param, LPARAM l_param) {
     SetMsgHandled(FALSE);
     return 0;
   }
   virtual LRESULT OnNCHitTest(const CPoint& pt) {
     SetMsgHandled(FALSE);
     return 0;
   }
@@ skipping 206 matching lines @@
   // Instance of accessibility information and handling for MSAA root
   CComPtr<IAccessible> accessibility_root_;
 
   // Our hwnd.
   HWND hwnd_;
 };
 
 }  // namespace views
 
 #endif  // #ifndef CHROME_VIEWS_WIDGET_WIDGET_WIN_H_