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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_TOPLEVEL_LAYOUT_MANAGER_H_
#define ASH_WM_TOPLEVEL_LAYOUT_MANAGER_H_
#pragma once
#include "ash/ash_export.h"
#include "ash/wm/base_layout_manager.h"
#include "base/basictypes.h"
#include "base/compiler_specific.h"
namespace ash {
namespace internal {
class ShelfLayoutManager;
// ToplevelLayoutManager is the LayoutManager installed on a container that
// hosts what the shell considers to be top-level windows.
//
// ToplevelLayoutManager is used if the WorkspaceManager is not enabled and
// compact window mode is not enabled. It is intended to implement the simplest
// possible window management code. If you have a more complex window mode
// please implement a new LayoutManager for it.
class ASH_EXPORT ToplevelLayoutManager : public BaseLayoutManager {
public:
ToplevelLayoutManager();
virtual ~ToplevelLayoutManager();
void set_shelf(ShelfLayoutManager* shelf) { shelf_ = shelf; }
// LayoutManager overrides:
virtual void OnWindowAddedToLayout(aura::Window* child) OVERRIDE;
virtual void OnWillRemoveWindowFromLayout(aura::Window* child) OVERRIDE;
virtual void OnChildWindowVisibilityChanged(aura::Window* child,
bool visibile) OVERRIDE;
virtual void SetChildBounds(aura::Window* child,
const gfx::Rect& requested_bounds) OVERRIDE;
// WindowObserver overrides:
virtual void OnWindowPropertyChanged(aura::Window* window,
const char* name,
void* old) OVERRIDE;
private:
// Updates the visibility of the shelf based on if there are any full screen
// windows.
void UpdateShelfVisibility();
// Owned by the Shell container window LauncherContainer. May be NULL if
// we're not using a shelf.
ShelfLayoutManager* shelf_;
DISALLOW_COPY_AND_ASSIGN(ToplevelLayoutManager);
};
} // namespace ash
} // namespace internal
#endif // ASH_WM_TOPLEVEL_LAYOUT_MANAGER_H_
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