Revert "views: Move widget/ directory to ui/views." properly.

views/widget/native_widget_win.h

+// 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.
+
+#ifndef VIEWS_WIDGET_NATIVE_WIDGET_WIN_H_
+#define VIEWS_WIDGET_NATIVE_WIDGET_WIN_H_
+#pragma once
+
+#include <atlbase.h>
+#include <atlapp.h>
+#include <atlcrack.h>
+#include <atlmisc.h>
+
+#include <string>
+#include <vector>
+
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/scoped_vector.h"
+#include "base/memory/weak_ptr.h"
+#include "base/message_loop.h"
+#include "base/win/scoped_comptr.h"
+#include "base/win/win_util.h"
+#include "ui/base/win/window_impl.h"
+#include "ui/gfx/compositor/compositor.h"
+#include "ui/views/focus/focus_manager.h"
+#include "ui/views/layout/layout_manager.h"
+#include "views/widget/native_widget_private.h"
+
+namespace ui {
+class Compositor;
+class ViewProp;
+}
+
+namespace gfx {
+class CanvasSkia;
+class Font;
+class Rect;
+}
+
+namespace views {
+
+class DropTargetWin;
+class RootView;
+class TooltipManagerWin;
+
+// These two messages aren't defined in winuser.h, but they are sent to windows
+// with captions. They appear to paint the window caption and frame.
+// Unfortunately if you override the standard non-client rendering as we do
+// with CustomFrameWindow, sometimes Windows (not deterministically
+// reproducibly but definitely frequently) will send these messages to the
+// window and paint the standard caption/title over the top of the custom one.
+// So we need to handle these messages in CustomFrameWindow to prevent this
+// from happening.
+const int WM_NCUAHDRAWCAPTION = 0xAE;
+const int WM_NCUAHDRAWFRAME = 0xAF;
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// NativeWidgetWin
+//  A Widget for a views hierarchy used to represent anything that can be
+//  contained within an HWND, e.g. a control, a window, etc. Specializations
+//  suitable for specific tasks, e.g. top level window, are derived from this.
+//
+//  This Widget contains a RootView which owns the hierarchy of views within it.
+//  As long as views are part of this tree, they will be deleted automatically
+//  when the RootView is destroyed. If you remove a view from the tree, you are
+//  then responsible for cleaning up after it.
+//
+///////////////////////////////////////////////////////////////////////////////
+class VIEWS_EXPORT NativeWidgetWin : public ui::WindowImpl,
+                                     public MessageLoopForUI::Observer,
+                                     public ui::CompositorDelegate,
+                                     public internal::NativeWidgetPrivate {
+ public:
+  explicit NativeWidgetWin(internal::NativeWidgetDelegate* delegate);
+  virtual ~NativeWidgetWin();
+
+  // Returns true if we are on Windows Vista or greater and composition is
+  // enabled.
+  static bool IsAeroGlassEnabled();
+
+  // Returns the system set window title font.
+  static gfx::Font GetWindowTitleFont();
+
+  // Show the window with the specified show command.
+  void Show(int show_state);
+
+  // Disable Layered Window updates by setting to false.
+  void set_can_update_layered_window(bool can_update_layered_window) {
+    can_update_layered_window_ = can_update_layered_window;
+  }
+
+  // Obtain the view event with the given MSAA child id.  Used in
+  // NativeViewAccessibilityWin::get_accChild to support requests for
+  // children of windowless controls.  May return NULL
+  // (see ViewHierarchyChanged).
+  View* GetAccessibilityViewEventAt(int id);
+
+  // Add a view that has recently fired an accessibility event.  Returns a MSAA
+  // child id which is generated by: -(index of view in vector + 1) which
+  // guarantees a negative child id.  This distinguishes the view from
+  // positive MSAA child id's which are direct leaf children of views that have
+  // associated hWnd's (e.g. NativeWidgetWin).
+  int AddAccessibilityViewEvent(View* view);
+
+  // Clear a view that has recently been removed on a hierarchy change.
+  void ClearAccessibilityViewEvent(View* view);
+
+  // Hides the window if it hasn't already been force-hidden. The force hidden
+  // count is tracked, so calling multiple times is allowed, you just have to
+  // be sure to call PopForceHidden the same number of times.
+  void PushForceHidden();
+
+  // Decrements the force hidden count, showing the window if we have reached
+  // the top of the stack. See PushForceHidden.
+  void PopForceHidden();
+
+  BOOL IsWindow() const {
+    return ::IsWindow(GetNativeView());
+  }
+
+  BOOL ShowWindow(int command) {
+    DCHECK(::IsWindow(GetNativeView()));
+    return ::ShowWindow(GetNativeView(), command);
+  }
+
+  HWND GetParent() const {
+    return ::GetParent(GetNativeView());
+  }
+
+  LONG GetWindowLong(int index) {
+    DCHECK(::IsWindow(GetNativeView()));
+    return ::GetWindowLong(GetNativeView(), index);
+  }
+
+  BOOL GetWindowRect(RECT* rect) const {
+    return ::GetWindowRect(GetNativeView(), rect);
+  }
+
+  LONG SetWindowLong(int index, LONG new_long) {
+    DCHECK(::IsWindow(GetNativeView()));
+    return ::SetWindowLong(GetNativeView(), index, new_long);
+  }
+
+  BOOL SetWindowPos(HWND hwnd_after, int x, int y, int cx, int cy, UINT flags) {
+    DCHECK(::IsWindow(GetNativeView()));
+    return ::SetWindowPos(GetNativeView(), hwnd_after, x, y, cx, cy, flags);
+  }
+
+  BOOL IsZoomed() const {
+    DCHECK(::IsWindow(GetNativeView()));
+    return ::IsZoomed(GetNativeView());
+  }
+
+  BOOL MoveWindow(int x, int y, int width, int height) {
+    return MoveWindow(x, y, width, height, TRUE);
+  }
+
+  BOOL MoveWindow(int x, int y, int width, int height, BOOL repaint) {
+    DCHECK(::IsWindow(GetNativeView()));
+    return ::MoveWindow(GetNativeView(), x, y, width, height, repaint);
+  }
+
+  int SetWindowRgn(HRGN region, BOOL redraw) {
+    DCHECK(::IsWindow(GetNativeView()));
+    return ::SetWindowRgn(GetNativeView(), region, redraw);
+  }
+
+  BOOL GetClientRect(RECT* rect) const {
+    DCHECK(::IsWindow(GetNativeView()));
+    return ::GetClientRect(GetNativeView(), rect);
+  }
+
+  // Overridden from ui::CompositorDelegate:
+  virtual void ScheduleDraw();
+
+  // Overridden from internal::NativeWidgetPrivate:
+  virtual void InitNativeWidget(const Widget::InitParams& params) OVERRIDE;
+  virtual NonClientFrameView* CreateNonClientFrameView() OVERRIDE;
+  virtual void UpdateFrameAfterFrameChange() OVERRIDE;
+  virtual bool ShouldUseNativeFrame() const OVERRIDE;
+  virtual void FrameTypeChanged() OVERRIDE;
+  virtual Widget* GetWidget() OVERRIDE;
+  virtual const Widget* GetWidget() const OVERRIDE;
+  virtual gfx::NativeView GetNativeView() const OVERRIDE;
+  virtual gfx::NativeWindow GetNativeWindow() const OVERRIDE;
+  virtual Widget* GetTopLevelWidget() OVERRIDE;
+  virtual const ui::Compositor* GetCompositor() const OVERRIDE;
+  virtual ui::Compositor* GetCompositor() OVERRIDE;
+  virtual void CalculateOffsetToAncestorWithLayer(
+      gfx::Point* offset,
+      ui::Layer** layer_parent) OVERRIDE;
+  virtual void ReorderLayers() OVERRIDE;
+  virtual void ViewRemoved(View* view) OVERRIDE;
+  virtual void SetNativeWindowProperty(const char* name, void* value) OVERRIDE;
+  virtual void* GetNativeWindowProperty(const char* name) const OVERRIDE;
+  virtual TooltipManager* GetTooltipManager() const OVERRIDE;
+  virtual bool IsScreenReaderActive() const OVERRIDE;
+  virtual void SendNativeAccessibilityEvent(
+      View* view,
+      ui::AccessibilityTypes::Event event_type) OVERRIDE;
+  virtual void SetMouseCapture() OVERRIDE;
+  virtual void ReleaseMouseCapture() OVERRIDE;
+  virtual bool HasMouseCapture() const OVERRIDE;
+  virtual InputMethod* CreateInputMethod() OVERRIDE;
+  virtual void CenterWindow(const gfx::Size& size) OVERRIDE;
+  virtual void GetWindowPlacement(
+     gfx::Rect* bounds,
+     ui::WindowShowState* show_state) const OVERRIDE;
+  virtual void SetWindowTitle(const string16& title) OVERRIDE;
+  virtual void SetWindowIcons(const SkBitmap& window_icon,
+                              const SkBitmap& app_icon) OVERRIDE;
+  virtual void SetAccessibleName(const string16& name) OVERRIDE;
+  virtual void SetAccessibleRole(ui::AccessibilityTypes::Role role) OVERRIDE;
+  virtual void SetAccessibleState(ui::AccessibilityTypes::State state) OVERRIDE;
+  virtual void BecomeModal() OVERRIDE;
+  virtual gfx::Rect GetWindowScreenBounds() const OVERRIDE;
+  virtual gfx::Rect GetClientAreaScreenBounds() const OVERRIDE;
+  virtual gfx::Rect GetRestoredBounds() const OVERRIDE;
+  virtual void SetBounds(const gfx::Rect& bounds) OVERRIDE;
+  virtual void SetSize(const gfx::Size& size) OVERRIDE;
+  virtual void MoveAbove(gfx::NativeView native_view) OVERRIDE;
+  virtual void MoveToTop() OVERRIDE;
+  virtual void SetShape(gfx::NativeRegion shape) OVERRIDE;
+  virtual void Close() OVERRIDE;
+  virtual void CloseNow() OVERRIDE;
+  virtual void EnableClose(bool enable) OVERRIDE;
+  virtual void Show() OVERRIDE;
+  virtual void Hide() OVERRIDE;
+  virtual void ShowMaximizedWithBounds(
+      const gfx::Rect& restored_bounds) OVERRIDE;
+  virtual void ShowWithWindowState(ui::WindowShowState show_state) OVERRIDE;
+  virtual bool IsVisible() const OVERRIDE;
+  virtual void Activate() OVERRIDE;
+  virtual void Deactivate() OVERRIDE;
+  virtual bool IsActive() const OVERRIDE;
+  virtual void SetAlwaysOnTop(bool always_on_top) OVERRIDE;
+  virtual void Maximize() OVERRIDE;
+  virtual void Minimize() OVERRIDE;
+  virtual bool IsMaximized() const OVERRIDE;
+  virtual bool IsMinimized() const OVERRIDE;
+  virtual void Restore() OVERRIDE;
+  virtual void SetFullscreen(bool fullscreen) OVERRIDE;
+  virtual bool IsFullscreen() const OVERRIDE;
+  virtual void SetOpacity(unsigned char opacity) OVERRIDE;
+  virtual void SetUseDragFrame(bool use_drag_frame) OVERRIDE;
+  virtual bool IsAccessibleWidget() const OVERRIDE;
+  virtual void RunShellDrag(View* view,
+                            const ui::OSExchangeData& data,
+                            int operation) OVERRIDE;
+  virtual void SchedulePaintInRect(const gfx::Rect& rect) OVERRIDE;
+  virtual void SetCursor(gfx::NativeCursor cursor) OVERRIDE;
+  virtual void ClearNativeFocus() OVERRIDE;
+  virtual void FocusNativeView(gfx::NativeView native_view) OVERRIDE;
+  virtual bool ConvertPointFromAncestor(
+      const Widget* ancestor, gfx::Point* point) const OVERRIDE;
+  virtual gfx::Rect GetWorkAreaBoundsInScreen() const OVERRIDE;
+  virtual void SetInactiveRenderingDisabled(bool value) OVERRIDE;
+
+ protected:
+  // Information saved before going into fullscreen mode, used to restore the
+  // window afterwards.
+  struct SavedWindowInfo {
+    bool maximized;
+    LONG style;
+    LONG ex_style;
+    RECT window_rect;
+  };
+
+  // Overridden from MessageLoop::Observer:
+  virtual base::EventStatus WillProcessEvent(
+      const base::NativeEvent& event) OVERRIDE;
+  virtual void DidProcessEvent(const base::NativeEvent& event) OVERRIDE;
+
+  // Overridden from WindowImpl:
+  virtual HICON GetDefaultWindowIcon() const OVERRIDE;
+  virtual LRESULT OnWndProc(UINT message,
+                            WPARAM w_param,
+                            LPARAM l_param) OVERRIDE;
+
+  // Message Handlers ----------------------------------------------------------
+
+  BEGIN_MSG_MAP_EX(NativeWidgetWin)
+    // Range handlers must go first!
+    MESSAGE_RANGE_HANDLER_EX(WM_MOUSEFIRST, WM_MOUSELAST, OnMouseRange)
+    MESSAGE_RANGE_HANDLER_EX(WM_NCMOUSEMOVE, WM_NCXBUTTONDBLCLK, OnMouseRange)
+
+    // Reflected message handler
+    MESSAGE_HANDLER_EX(base::win::kReflectedMessage, OnReflectedMessage)
+
+    // CustomFrameWindow hacks
+    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)
+
+    // Mouse events.
+    MESSAGE_HANDLER_EX(WM_MOUSEACTIVATE, OnMouseActivate)
+    MESSAGE_HANDLER_EX(WM_MOUSELEAVE, OnMouseRange)
+    MESSAGE_HANDLER_EX(WM_NCMOUSELEAVE, OnMouseRange)
+    MESSAGE_HANDLER_EX(WM_SETCURSOR, OnSetCursor);
+
+    // Key events.
+    MESSAGE_HANDLER_EX(WM_KEYDOWN, OnKeyEvent)
+    MESSAGE_HANDLER_EX(WM_KEYUP, OnKeyEvent)
+    MESSAGE_HANDLER_EX(WM_SYSKEYDOWN, OnKeyEvent)
+    MESSAGE_HANDLER_EX(WM_SYSKEYUP, OnKeyEvent)
+
+    // IME Events.
+    MESSAGE_HANDLER_EX(WM_IME_SETCONTEXT, OnImeMessages)
+    MESSAGE_HANDLER_EX(WM_IME_STARTCOMPOSITION, OnImeMessages)
+    MESSAGE_HANDLER_EX(WM_IME_COMPOSITION, OnImeMessages)
+    MESSAGE_HANDLER_EX(WM_IME_ENDCOMPOSITION, OnImeMessages)
+    MESSAGE_HANDLER_EX(WM_IME_REQUEST, OnImeMessages)
+    MESSAGE_HANDLER_EX(WM_CHAR, OnImeMessages)
+    MESSAGE_HANDLER_EX(WM_SYSCHAR, OnImeMessages)
+    MESSAGE_HANDLER_EX(WM_DEADCHAR, OnImeMessages)
+    MESSAGE_HANDLER_EX(WM_SYSDEADCHAR, OnImeMessages)
+
+    // 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)
+    MSG_WM_DESTROY(OnDestroy)
+    MSG_WM_DISPLAYCHANGE(OnDisplayChange)
+    MSG_WM_ERASEBKGND(OnEraseBkgnd)
+    MSG_WM_ENDSESSION(OnEndSession)
+    MSG_WM_ENTERSIZEMOVE(OnEnterSizeMove)
+    MSG_WM_EXITMENULOOP(OnExitMenuLoop)
+    MSG_WM_EXITSIZEMOVE(OnExitSizeMove)
+    MSG_WM_GETMINMAXINFO(OnGetMinMaxInfo)
+    MSG_WM_HSCROLL(OnHScroll)
+    MSG_WM_INITMENU(OnInitMenu)
+    MSG_WM_INITMENUPOPUP(OnInitMenuPopup)
+    MSG_WM_INPUTLANGCHANGE(OnInputLangChange)
+    MSG_WM_KILLFOCUS(OnKillFocus)
+    MSG_WM_MOVE(OnMove)
+    MSG_WM_MOVING(OnMoving)
+    MSG_WM_NCACTIVATE(OnNCActivate)
+    MSG_WM_NCCALCSIZE(OnNCCalcSize)
+    MSG_WM_NCHITTEST(OnNCHitTest)
+    MSG_WM_NCPAINT(OnNCPaint)
+    MSG_WM_NOTIFY(OnNotify)
+    MSG_WM_PAINT(OnPaint)
+    MSG_WM_POWERBROADCAST(OnPowerBroadcast)
+    MSG_WM_SETFOCUS(OnSetFocus)
+    MSG_WM_SETICON(OnSetIcon)
+    MSG_WM_SETTEXT(OnSetText)
+    MSG_WM_SETTINGCHANGE(OnSettingChange)
+    MSG_WM_SIZE(OnSize)
+    MSG_WM_SYSCOMMAND(OnSysCommand)
+    MSG_WM_THEMECHANGED(OnThemeChanged)
+    MSG_WM_VSCROLL(OnVScroll)
+    MSG_WM_WINDOWPOSCHANGING(OnWindowPosChanging)
+    MSG_WM_WINDOWPOSCHANGED(OnWindowPosChanged)
+  END_MSG_MAP()
+
+  // These are all virtual so that specialized Widgets can modify or augment
+  // processing.
+  // This list is in _ALPHABETICAL_ order!
+  // Note: in the base class these functions must do nothing but convert point
+  //       coordinates to client coordinates (if necessary) and forward the
+  //       handling to the appropriate Process* function. This is so that
+  //       subclasses can easily override these methods to do different things
+  //       and have a convenient function to call to get the default behavior.
+  virtual void OnActivate(UINT action, BOOL minimized, HWND window);
+  virtual void OnActivateApp(BOOL active, DWORD thread_id);
+  virtual LRESULT OnAppCommand(HWND window, short app_command, WORD device,
+                               int keystate);
+  virtual void OnCancelMode();
+  virtual void OnCaptureChanged(HWND hwnd);
+  virtual void OnClose();
+  virtual void OnCommand(UINT notification_code, int command_id, HWND window);
+  virtual LRESULT OnCreate(CREATESTRUCT* create_struct);
+  // WARNING: If you override this be sure and invoke super, otherwise we'll
+  // leak a few things.
+  virtual void OnDestroy();
+  virtual void OnDisplayChange(UINT bits_per_pixel, CSize screen_size);
+  virtual LRESULT OnDwmCompositionChanged(UINT msg,
+                                          WPARAM w_param,
+                                          LPARAM l_param);
+  virtual void OnEndSession(BOOL ending, UINT logoff);
+  virtual void OnEnterSizeMove();
+  virtual LRESULT OnEraseBkgnd(HDC dc);
+  virtual void OnExitMenuLoop(BOOL is_track_popup_menu);
+  virtual void OnExitSizeMove();
+  virtual LRESULT OnGetObject(UINT uMsg, WPARAM w_param, LPARAM l_param);
+  virtual void OnGetMinMaxInfo(MINMAXINFO* minmax_info);
+  virtual void OnHScroll(int scroll_type, short position, HWND scrollbar);
+  virtual LRESULT OnImeMessages(UINT message, WPARAM w_param, LPARAM l_param);
+  virtual void OnInitMenu(HMENU menu);
+  virtual void OnInitMenuPopup(HMENU menu, UINT position, BOOL is_system_menu);
+  virtual void OnInputLangChange(DWORD character_set, HKL input_language_id);
+  virtual LRESULT OnKeyEvent(UINT message, WPARAM w_param, LPARAM l_param);
+  virtual void OnKillFocus(HWND focused_window);
+  virtual LRESULT OnMouseActivate(UINT message, WPARAM w_param, LPARAM l_param);
+  virtual LRESULT OnMouseRange(UINT message, WPARAM w_param, LPARAM l_param);
+  virtual void OnMove(const CPoint& point);
+  virtual void OnMoving(UINT param, LPRECT new_bounds);
+  virtual LRESULT OnNCActivate(BOOL active);
+  virtual LRESULT OnNCCalcSize(BOOL w_param, LPARAM l_param);
+  virtual LRESULT OnNCHitTest(const CPoint& pt);
+  virtual void OnNCPaint(HRGN rgn);
+  virtual LRESULT OnNCUAHDrawCaption(UINT msg,
+                                     WPARAM w_param,
+                                     LPARAM l_param);
+  virtual LRESULT OnNCUAHDrawFrame(UINT msg, WPARAM w_param, LPARAM l_param);
+  virtual LRESULT OnNotify(int w_param, NMHDR* l_param);
+  virtual void OnPaint(HDC dc);
+  virtual LRESULT OnPowerBroadcast(DWORD power_event, DWORD data);
+  virtual LRESULT OnReflectedMessage(UINT msg, WPARAM w_param, LPARAM l_param);
+  virtual LRESULT OnSetCursor(UINT message, WPARAM w_param, LPARAM l_param);
+  virtual void OnSetFocus(HWND focused_window);
+  virtual LRESULT OnSetIcon(UINT size_type, HICON new_icon);
+  virtual LRESULT OnSetText(const wchar_t* text);
+  virtual void OnSettingChange(UINT flags, const wchar_t* section);
+  virtual void OnSize(UINT param, const CSize& size);
+  virtual void OnSysCommand(UINT notification_code, CPoint click);
+  virtual void OnThemeChanged();
+  virtual void OnVScroll(int scroll_type, short position, HWND scrollbar);
+  virtual void OnWindowPosChanging(WINDOWPOS* window_pos);
+  virtual void OnWindowPosChanged(WINDOWPOS* window_pos);
+
+  // Deletes this window as it is destroyed, override to provide different
+  // behavior.
+  virtual void OnFinalMessage(HWND window);
+
+  // Retrieve the show state of the window. This is one of the SW_SHOW* flags
+  // passed into Windows' ShowWindow method. For normal windows this defaults
+  // to SW_SHOWNORMAL, however windows (e.g. the main window) can override this
+  // method to provide different values (e.g. retrieve the user's specified
+  // show state from the shortcut starutp info).
+  virtual int GetShowState() const;
+
+  // Returns the insets of the client area relative to the non-client area of
+  // the window. Override this function instead of OnNCCalcSize, which is
+  // crazily complicated.
+  virtual gfx::Insets GetClientAreaInsets() const;
+
+  // Start tracking all mouse events so that this window gets sent mouse leave
+  // messages too.
+  void TrackMouseEvents(DWORD mouse_tracking_flags);
+
+  // Called when a MSAA screen reader client is detected.
+  virtual void OnScreenReaderDetected();
+
+  // Executes the specified SC_command.
+  void ExecuteSystemMenuCommand(int command);
+
+  // The TooltipManager. This is NULL if there is a problem creating the
+  // underlying tooltip window.
+  // WARNING: RootView's destructor calls into the TooltipManager. As such, this
+  // must be destroyed AFTER root_view_.
+  scoped_ptr<TooltipManagerWin> tooltip_manager_;
+
+  scoped_refptr<DropTargetWin> drop_target_;
+
+  const gfx::Rect& invalid_rect() const { return invalid_rect_; }
+
+  // Saved window information from before entering fullscreen mode.
+  // TODO(beng): move to private once GetRestoredBounds() moves onto Widget.
+  SavedWindowInfo saved_window_info_;
+
+ private:
+  typedef ScopedVector<ui::ViewProp> ViewProps;
+
+  // Called after the WM_ACTIVATE message has been processed by the default
+  // windows procedure.
+  static void PostProcessActivateMessage(NativeWidgetWin* widget,
+                                         int activation_state);
+
+  void SetInitParams(const Widget::InitParams& params);
+
+  // Synchronously paints the invalid contents of the Widget.
+  void RedrawInvalidRect();
+
+  // Synchronously updates the invalid contents of the Widget. Valid for
+  // layered windows only.
+  void RedrawLayeredWindowContents();
+
+  // Lock or unlock the window from being able to redraw itself in response to
+  // updates to its invalid region.
+  class ScopedRedrawLock;
+  void LockUpdates();
+  void UnlockUpdates();
+
+  // Determines whether the delegate expects the client size or the window size.
+  bool WidgetSizeIsClientSize() const;
+
+  // Responds to the client area changing size, either at window creation time
+  // or subsequently.
+  void ClientAreaSizeChanged();
+
+  // Resets the window region for the current widget bounds if necessary.
+  // If |force| is true, the window region is reset to NULL even for native
+  // frame windows.
+  void ResetWindowRegion(bool force);
+
+  // Calls DefWindowProc, safely wrapping the call in a ScopedRedrawLock to
+  // prevent frame flicker. DefWindowProc handling can otherwise render the
+  // classic-look window title bar directly.
+  LRESULT DefWindowProcWithRedrawLock(UINT message,
+                                      WPARAM w_param,
+                                      LPARAM l_param);
+
+  // Stops ignoring SetWindowPos() requests (see below).
+  void StopIgnoringPosChanges() { ignore_window_pos_changes_ = false; }
+
+  void RestoreEnabledIfNecessary();
+
+  void SetInitialFocus();
+
+  // Overridden from internal::InputMethodDelegate
+  virtual void DispatchKeyEventPostIME(const KeyEvent& key) OVERRIDE;
+
+  // A delegate implementation that handles events received here.
+  // See class documentation for Widget in widget.h for a note about ownership.
+  internal::NativeWidgetDelegate* delegate_;
+
+  // The following factory is used for calls to close the NativeWidgetWin
+  // instance.
+  base::WeakPtrFactory<NativeWidgetWin> close_widget_factory_;
+
+  // The flags currently being used with TrackMouseEvent to track mouse
+  // messages. 0 if there is no active tracking. The value of this member is
+  // used when tracking is canceled.
+  DWORD active_mouse_tracking_flags_;
+
+  // Should we keep an off-screen buffer? This is false by default, set to true
+  // when WS_EX_LAYERED is specified before the native window is created.
+  //
+  // NOTE: this is intended to be used with a layered window (a window with an
+  // extended window style of WS_EX_LAYERED). If you are using a layered window
+  // and NOT changing the layered alpha or anything else, then leave this value
+  // alone. OTOH if you are invoking SetLayeredWindowAttributes then you'll
+  // most likely want to set this to false, or after changing the alpha toggle
+  // the extended style bit to false than back to true. See MSDN for more
+  // details.
+  bool use_layered_buffer_;
+
+  // The default alpha to be applied to the layered window.
+  BYTE layered_alpha_;
+
+  // A canvas that contains the window contents in the case of a layered
+  // window.
+  scoped_ptr<gfx::CanvasSkia> layered_window_contents_;
+
+  // We must track the invalid rect ourselves, for two reasons:
+  // For layered windows, Windows will not do this properly with
+  // InvalidateRect()/GetUpdateRect(). (In fact, it'll return misleading
+  // information from GetUpdateRect()).
+  // We also need to keep track of the invalid rectangle for the RootView should
+  // we need to paint the non-client area. The data supplied to WM_NCPAINT seems
+  // to be insufficient.
+  gfx::Rect invalid_rect_;
+
+  // A factory that allows us to schedule a redraw for layered windows.
+  base::WeakPtrFactory<NativeWidgetWin> paint_layered_window_factory_;
+
+  // See class documentation for Widget in widget.h for a note about ownership.
+  Widget::InitParams::Ownership ownership_;
+
+  // True if we are allowed to update the layered window from the DIB backing
+  // store if necessary.
+  bool can_update_layered_window_;
+
+  // Whether the focus should be restored next time we get enabled.  Needed to
+  // restore focus correctly when Windows modal dialogs are displayed.
+  bool restore_focus_when_enabled_;
+
+  // Instance of accessibility information and handling for MSAA root
+  base::win::ScopedComPtr<IAccessible> accessibility_root_;
+
+  // Value determines whether the Widget is customized for accessibility.
+  static bool screen_reader_active_;
+
+  // The maximum number of view events in our vector below.
+  static const int kMaxAccessibilityViewEvents = 20;
+
+  // A vector used to access views for which we have sent notifications to
+  // accessibility clients.  It is used as a circular queue.
+  std::vector<View*> accessibility_view_events_;
+
+  // The current position of the view events vector.  When incrementing,
+  // we always mod this value with the max view events above .
+  int accessibility_view_events_index_;
+
+  // The last cursor that was active before the current one was selected. Saved
+  // so that we can restore it.
+  gfx::NativeCursor previous_cursor_;
+
+  ViewProps props_;
+
+  // True if we're in fullscreen mode.
+  bool fullscreen_;
+
+  // If this is greater than zero, we should prevent attempts to make the window
+  // visible when we handle WM_WINDOWPOSCHANGING. Some calls like
+  // ShowWindow(SW_RESTORE) make the window visible in addition to restoring it,
+  // when all we want to do is restore it.
+  int force_hidden_count_;
+
+  // The window styles before we modified them for the drag frame appearance.
+  DWORD drag_frame_saved_window_style_;
+  DWORD drag_frame_saved_window_ex_style_;
+
+  // Represents the number of ScopedRedrawLocks active against this widget.
+  // If this is greater than zero, the widget should be locked against updates.
+  int lock_updates_count_;
+
+  // The window styles of the window before updates were locked.
+  DWORD saved_window_style_;
+
+  // When true, this flag makes us discard incoming SetWindowPos() requests that
+  // only change our position/size.  (We still allow changes to Z-order,
+  // activation, etc.)
+  bool ignore_window_pos_changes_;
+
+  // The following factory is used to ignore SetWindowPos() calls for short time
+  // periods.
+  base::WeakPtrFactory<NativeWidgetWin> ignore_pos_changes_factory_;
+
+  // The last-seen monitor containing us, and its rect and work area.  These are
+  // used to catch updates to the rect and work area and react accordingly.
+  HMONITOR last_monitor_;
+  gfx::Rect last_monitor_rect_, last_work_area_;
+
+  // Set to true when the user presses the right mouse button on the caption
+  // area. We need this so we can correctly show the context menu on mouse-up.
+  bool is_right_mouse_pressed_on_caption_;
+
+  // Whether all ancestors have been enabled. This is only used if is_modal_ is
+  // true.
+  bool restored_enabled_;
+
+  // The compositor for accelerated drawing.
+  scoped_refptr<ui::Compositor> compositor_;
+
+  // This flag can be initialized and checked after certain operations (such as
+  // DefWindowProc) to avoid stack-controlled NativeWidgetWin operations (such
+  // as unlocking the Window with a ScopedRedrawLock) after Widget destruction.
+  bool* destroyed_;
+
+  // True if the widget is going to have a non_client_view. We cache this value
+  // rather than asking the Widget for the non_client_view so that we know at
+  // Init time, before the Widget has created the NonClientView.
+  bool has_non_client_view_;
+
+  DISALLOW_COPY_AND_ASSIGN(NativeWidgetWin);
+};
+
+}  // namespace views
+
+#endif  // VIEWS_WIDGET_NATIVE_WIDGET_WIN_H_