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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_WORKSPACE_PHANTOM_WINDOW_CONTROLLER_H_
#define ASH_WM_WORKSPACE_PHANTOM_WINDOW_CONTROLLER_H_
#include "ash/ash_export.h"
#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "ui/gfx/rect.h"
namespace aura {
class Window;
}
namespace views {
class Widget;
}
namespace ash {
// PhantomWindowController is responsible for showing a phantom representation
// of a window. It's used to show a preview of how snapping or docking a window
// will affect the window's bounds.
class ASH_EXPORT PhantomWindowController {
public:
explicit PhantomWindowController(aura::Window* window);
// Hides the phantom window without any animation.
virtual ~PhantomWindowController();
// Shows the phantom window and animates shrinking it to |bounds_in_screen|.
void Show(const gfx::Rect& bounds_in_screen);
private:
friend class PhantomWindowControllerTest;
// Creates, shows and returns a phantom widget at |bounds|
// with kShellWindowId_ShelfContainer in |root_window| as a parent.
scoped_ptr<views::Widget> CreatePhantomWidget(
aura::Window* root_window,
const gfx::Rect& bounds_in_screen);
// Window that the phantom window is stacked above.
aura::Window* window_;
// Target bounds (including the shadows if any) of the animation in screen
// coordinates.
gfx::Rect target_bounds_in_screen_;
// Phantom representation of the window.
scoped_ptr<views::Widget> phantom_widget_;
DISALLOW_COPY_AND_ASSIGN(PhantomWindowController);
};
} // namespace ash
#endif // ASH_WM_WORKSPACE_PHANTOM_WINDOW_CONTROLLER_H_
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