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// 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 ASH_WM_STATUS_AREA_LAYOUT_MANAGER_H_
#define ASH_WM_STATUS_AREA_LAYOUT_MANAGER_H_
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "ui/aura/layout_manager.h"
namespace ash {
class ShelfWidget;
namespace internal {
// StatusAreaLayoutManager is a layout manager responsible for the status area.
// In any case when status area needs relayout it redirects this call to
// ShelfLayoutManager.
class StatusAreaLayoutManager : public aura::LayoutManager {
public:
explicit StatusAreaLayoutManager(ShelfWidget* shelf);
virtual ~StatusAreaLayoutManager();
// Overridden from aura::LayoutManager:
virtual void OnWindowResized() OVERRIDE;
virtual void OnWindowAddedToLayout(aura::Window* child) OVERRIDE;
virtual void OnWillRemoveWindowFromLayout(aura::Window* child) OVERRIDE;
virtual void OnWindowRemovedFromLayout(aura::Window* child) OVERRIDE;
virtual void OnChildWindowVisibilityChanged(aura::Window* child,
bool visible) OVERRIDE;
virtual void SetChildBounds(aura::Window* child,
const gfx::Rect& requested_bounds) OVERRIDE;
private:
// Updates layout of the status area. Effectively calls ShelfLayoutManager
// to update layout of the shelf.
void LayoutStatusArea();
// True when inside LayoutStatusArea method.
// Used to prevent calling itself again from SetChildBounds().
bool in_layout_;
ShelfWidget* shelf_;
DISALLOW_COPY_AND_ASSIGN(StatusAreaLayoutManager);
};
} // namespace internal
} // namespace ash
#endif // ASH_WM_STATUS_AREA_LAYOUT_MANAGER_H_
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