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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef ASH_WM_ROOT_WINDOW_LAYOUT_MANAGER_H_
      6 #define ASH_WM_ROOT_WINDOW_LAYOUT_MANAGER_H_
      7 
      8 #include "ash/shell_window_ids.h"
      9 #include "base/basictypes.h"
     10 #include "base/compiler_specific.h"
     11 #include "base/memory/scoped_ptr.h"
     12 #include "ui/aura/layout_manager.h"
     13 
     14 namespace aura {
     15 class Window;
     16 }
     17 namespace gfx {
     18 class Rect;
     19 }
     20 namespace ui {
     21 class Layer;
     22 }
     23 namespace views {
     24 class Widget;
     25 }
     26 
     27 namespace ash {
     28 namespace internal {
     29 
     30 // A layout manager for the root window.
     31 // Resizes all of its immediate children to fill the bounds of the root window.
     32 class RootWindowLayoutManager : public aura::LayoutManager {
     33  public:
     34   explicit RootWindowLayoutManager(aura::Window* owner);
     35   virtual ~RootWindowLayoutManager();
     36 
     37   // Overridden from aura::LayoutManager:
     38   virtual void OnWindowResized() OVERRIDE;
     39   virtual void OnWindowAddedToLayout(aura::Window* child) OVERRIDE;
     40   virtual void OnWillRemoveWindowFromLayout(aura::Window* child) OVERRIDE;
     41   virtual void OnWindowRemovedFromLayout(aura::Window* child) OVERRIDE;
     42   virtual void OnChildWindowVisibilityChanged(aura::Window* child,
     43                                               bool visible) OVERRIDE;
     44   virtual void SetChildBounds(aura::Window* child,
     45                               const gfx::Rect& requested_bounds) OVERRIDE;
     46 
     47  private:
     48   aura::Window* owner_;
     49 
     50   DISALLOW_COPY_AND_ASSIGN(RootWindowLayoutManager);
     51 };
     52 
     53 }  // namespace internal
     54 }  // namespace ash
     55 
     56 #endif  // ASH_WM_ROOT_WINDOW_LAYOUT_MANAGER_H_
     57