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_STATUS_AREA_LAYOUT_MANAGER_H_ 6 #define ASH_WM_STATUS_AREA_LAYOUT_MANAGER_H_ 7 8 #include "base/basictypes.h" 9 #include "base/compiler_specific.h" 10 #include "ui/aura/layout_manager.h" 11 12 namespace ash { 13 class ShelfWidget; 14 namespace internal { 15 16 // StatusAreaLayoutManager is a layout manager responsible for the status area. 17 // In any case when status area needs relayout it redirects this call to 18 // ShelfLayoutManager. 19 class StatusAreaLayoutManager : public aura::LayoutManager { 20 public: 21 explicit StatusAreaLayoutManager(ShelfWidget* shelf); 22 virtual ~StatusAreaLayoutManager(); 23 24 // Overridden from aura::LayoutManager: 25 virtual void OnWindowResized() OVERRIDE; 26 virtual void OnWindowAddedToLayout(aura::Window* child) OVERRIDE; 27 virtual void OnWillRemoveWindowFromLayout(aura::Window* child) OVERRIDE; 28 virtual void OnWindowRemovedFromLayout(aura::Window* child) OVERRIDE; 29 virtual void OnChildWindowVisibilityChanged(aura::Window* child, 30 bool visible) OVERRIDE; 31 virtual void SetChildBounds(aura::Window* child, 32 const gfx::Rect& requested_bounds) OVERRIDE; 33 34 private: 35 // Updates layout of the status area. Effectively calls ShelfLayoutManager 36 // to update layout of the shelf. 37 void LayoutStatusArea(); 38 39 // True when inside LayoutStatusArea method. 40 // Used to prevent calling itself again from SetChildBounds(). 41 bool in_layout_; 42 43 ShelfWidget* shelf_; 44 45 DISALLOW_COPY_AND_ASSIGN(StatusAreaLayoutManager); 46 }; 47 48 } // namespace internal 49 } // namespace ash 50 51 #endif // ASH_WM_STATUS_AREA_LAYOUT_MANAGER_H_ 52