Support DWM switching....

chrome/views/custom_frame_window.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_CUSTOM_FRAME_WINDOW_H__
-#define CHROME_VIEWS_CUSTOM_FRAME_WINDOW_H__
-
-#include "chrome/common/gfx/chrome_canvas.h"
-#include "chrome/views/window.h"
-#include "chrome/views/window_delegate.h"
-
-namespace views {
-
-class NonClientView;
-
-////////////////////////////////////////////////////////////////////////////////
-//
-// CustomFrameWindow
-//
-//  A CustomFrameWindow is a Window subclass that implements the Chrome-style
-//  window frame used on Windows XP and Vista without DWM Composition.
-//  See documentation in window.h for more information about the capabilities
-//  of this window type.
-//
-////////////////////////////////////////////////////////////////////////////////
-class CustomFrameWindow : public Window {
- public:
-  explicit CustomFrameWindow(WindowDelegate* window_delegate);
-  CustomFrameWindow(WindowDelegate* window_delegate,
-                    NonClientView* non_client_view);
-  virtual ~CustomFrameWindow();
-
-  // Returns whether or not the frame is active.
-  bool is_active() const { return is_active_; }
-
-  // Overridden from Window:
-  virtual void Init(HWND parent, const gfx::Rect& bounds);
-  virtual void UpdateWindowTitle();
-  virtual void UpdateWindowIcon();
-
- protected:
-  // Overridden from Window:
-  virtual void SizeWindowToDefault();
-  virtual void EnableClose(bool enable);
-  virtual void DisableInactiveRendering(bool disable);
-
-  // Overridden from WidgetWin:
-  virtual void OnInitMenu(HMENU menu);
-  virtual void OnMouseLeave();
-  virtual LRESULT OnNCActivate(BOOL active);
-  virtual LRESULT OnNCCalcSize(BOOL mode, LPARAM l_param);
-  virtual LRESULT OnNCHitTest(const CPoint& point);
-  virtual void OnNCPaint(HRGN rgn);
-  virtual void OnNCLButtonDown(UINT ht_component, const CPoint& point);
-  virtual LRESULT OnNCUAHDrawCaption(UINT msg, WPARAM w_param, LPARAM l_param);
-  virtual LRESULT OnNCUAHDrawFrame(UINT msg, WPARAM w_param, LPARAM l_param);
-  virtual LRESULT OnSetCursor(HWND window, UINT hittest_code, UINT message);
-  virtual LRESULT OnSetIcon(UINT size_type, HICON new_icon);
-  virtual LRESULT OnSetText(const wchar_t* text);
-  virtual void OnSize(UINT param, const CSize& size);
-  virtual void OnSysCommand(UINT notification_code, CPoint click);
-
- private:
-  class ScopedRedrawLock;
-
-  // Lock or unlock the window from being able to redraw itself in response to
-  // updates to its invalid region.
-  void LockUpdates();
-  void UnlockUpdates();
-
-  // Resets the window region.
-  void ResetWindowRegion();
-
-  // Converts a non-client mouse down message to a regular ChromeViews event
-  // and handle it. |point| is the mouse position of the message in screen
-  // coords. |flags| are flags that would be passed with a WM_L/M/RBUTTON*
-  // message and relate to things like which button was pressed. These are
-  // combined with flags relating to the current key state.
-  void ProcessNCMousePress(const CPoint& point, int flags);
-
-  // True if this window is the active top level window.
-  bool is_active_;
-
-  // True if updates to this window are currently locked.
-  bool lock_updates_;
-
-  // The window styles of the window before updates were locked.
-  DWORD saved_window_style_;
-
-  // Static resource initialization.
-  static void InitClass();
-  enum ResizeCursor {
-    RC_NORMAL = 0, RC_VERTICAL, RC_HORIZONTAL, RC_NESW, RC_NWSE
-  };
-  static HCURSOR resize_cursors_[6];
-
-  DISALLOW_EVIL_CONSTRUCTORS(CustomFrameWindow);
-};
-
-}  // namespace views
-
-#endif  // CHROME_VIEWS_CUSTOM_FRAME_WINDOW_H__
-