chrome/browser/ui/views/frame/browser_desktop_root_window_host_win.h

// 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.

#ifndef CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_DESKTOP_ROOT_WINDOW_HOST_WIN_H_
#define CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_DESKTOP_ROOT_WINDOW_HOST_WIN_H_

#include <windows.h>
#include <uxtheme.h>

#include "ui/views/widget/desktop_aura/desktop_root_window_host_win.h"
#include "chrome/browser/ui/views/frame/browser_desktop_root_window_host.h"
#include "chrome/browser/ui/views/frame/minimize_button_metrics_win.h"

class BrowserFrame;
class BrowserView;

namespace views {
class DesktopNativeWidgetAura;
class NativeMenuWin;
}

class BrowserDesktopRootWindowHostWin : public BrowserDesktopRootWindowHost,
                                        public views::DesktopRootWindowHostWin {
 public:
  BrowserDesktopRootWindowHostWin(
      views::internal::NativeWidgetDelegate* native_widget_delegate,
      views::DesktopNativeWidgetAura* desktop_native_widget_aura,
      const gfx::Rect& initial_bounds,
      BrowserView* browser_view,
      BrowserFrame* browser_frame);
  virtual ~BrowserDesktopRootWindowHostWin();

 private:
  views::NativeMenuWin* GetSystemMenu();

  // Overridden from BrowserDesktopRootWindowHost:
  virtual DesktopRootWindowHost* AsDesktopRootWindowHost() OVERRIDE;
  virtual int GetMinimizeButtonOffset() const OVERRIDE;
  virtual bool UsesNativeSystemMenu() const OVERRIDE;

  // Overridden from DesktopRootWindowHostWin:
  virtual int GetInitialShowState() const OVERRIDE;
  virtual bool GetClientAreaInsets(gfx::Insets* insets) const OVERRIDE;
  virtual void HandleFrameChanged() OVERRIDE;
  virtual bool PreHandleMSG(UINT message,
                            WPARAM w_param,
                            LPARAM l_param,
                            LRESULT* result) OVERRIDE;
  virtual void PostHandleMSG(UINT message,
                             WPARAM w_param,
                             LPARAM l_param) OVERRIDE;
  virtual bool IsUsingCustomFrame() const OVERRIDE;
  virtual bool ShouldUseNativeFrame() OVERRIDE;
  virtual void FrameTypeChanged() OVERRIDE;

  void UpdateDWMFrame();

  MARGINS GetDWMFrameMargins() const;

  BrowserView* browser_view_;
  BrowserFrame* browser_frame_;

  MinimizeButtonMetrics minimize_button_metrics_;

  // The wrapped system menu itself.
  scoped_ptr<views::NativeMenuWin> system_menu_;

  // Necessary to avoid corruption on NC paint in Aero mode.
  bool did_gdi_clear_;

  DISALLOW_COPY_AND_ASSIGN(BrowserDesktopRootWindowHostWin);
};


#endif  // CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_DESKTOP_ROOT_WINDOW_HOST_WIN_H_