Preliminary metro snap plumbing.

ui/views/widget/native_widget_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 UI_VIEWS_WIDGET_NATIVE_WIDGET_WIN_H_
 #define UI_VIEWS_WIDGET_NATIVE_WIDGET_WIN_H_
 #pragma once
 
 #include <atlbase.h>
 #include <atlapp.h>
@@ skipping 97 matching lines @@
 
   // 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();
 
+  // Places the window in a pseudo-fullscreen mode where it looks and acts as
+  // like a fullscreen window except that it remains within the boundaries
+  // of the metro snap divider.
+  void SetMetroSnapFullscreen(bool metro_snap);
+
+  bool IsInMetroSnapMode() const;
+
   BOOL IsWindow() const {
     return ::IsWindow(GetNativeView());
   }
 
   BOOL ShowWindow(int command) {
     DCHECK(::IsWindow(GetNativeView()));
     return ::ShowWindow(GetNativeView(), command);
   }
 
   HWND GetParent() const {
@@ skipping 396 matching lines @@
   void RestoreEnabledIfNecessary();
 
   void SetInitialFocus();
 
   // Notifies any owned windows that we're closing.
   void NotifyOwnedWindowsParentClosing();
 
   // Overridden from internal::InputMethodDelegate
   virtual void DispatchKeyEventPostIME(const KeyEvent& key) OVERRIDE;
 
+  // Common implementation of fullscreen-related code. This method handles
+  // changing from windowed mode to a display mode (dubbed fullscreen mode)
+  // where the window occupies a fixed portion (possibly 100%) of the screen.
+  // |fullscreen| specifies whether we are entering or leaving fullscreen mode.
+  // |window_rect| contains sizing information that describes the portion of the
+  //               screen to be occupied. |window_rect| may be a rect of width
+  //               0, which indicates that sizing should be skipped when
+  //               entering fullscreen mode and previously-stored size should
+  //               be used when exiting fullscreen mode.
+  void SetFullscreenInternal(bool fullscreen,
+                             const gfx::Rect& window_rect);
+
   // 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
@@ skipping 61 matching lines @@
 
   // 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_;
 
+  // True if we're in metro snap mode.
+  bool metro_snap_;
+
   // 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_;
 
@@ skipping 37 matching lines @@
 
   // The set of touch devices currently down.
   TouchIDs touch_ids_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeWidgetWin);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_WIDGET_NATIVE_WIDGET_WIN_H_