display_configurator_animation.h revision 5c02ac1a9c1b504631c0a3d2b6e737b5d738bae1 
1// Copyright 2014 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_DISPLAY_DISPLAY_CONFIGURATOR_ANIMATION_H_
6#define ASH_DISPLAY_DISPLAY_CONFIGURATOR_ANIMATION_H_
7
8#include <map>
9
10#include "ash/ash_export.h"
11#include "base/callback.h"
12#include "base/timer/timer.h"
13#include "ui/display/chromeos/display_configurator.h"
14
15namespace aura {
16class RootWindow;
17class Window;
18}  // namespace aura
19
20namespace ui {
21class Layer;
22}  // namespace ui
23
24namespace ash {
25
26// DisplayConfiguratorAnimation provides the visual effects for
27// ui::DisplayConfigurator, such like fade-out/in during changing
28// the display mode.
29class ASH_EXPORT DisplayConfiguratorAnimation
30    : public ui::DisplayConfigurator::Observer {
31 public:
32  DisplayConfiguratorAnimation();
33  virtual ~DisplayConfiguratorAnimation();
34
35  // Starts the fade-out animation for the all root windows.  It will
36  // call |callback| once all of the animations have finished.
37  void StartFadeOutAnimation(base::Closure callback);
38
39  // Starts the animation to clear the fade-out animation effect
40  // for the all root windows.
41  void StartFadeInAnimation();
42
43 protected:
44  // ui::DisplayConfigurator::Observer overrides:
45  virtual void OnDisplayModeChanged(
46      const ui::DisplayConfigurator::DisplayStateList& outputs) OVERRIDE;
47  virtual void OnDisplayModeChangeFailed(
48      ui::MultipleDisplayState failed_new_state) OVERRIDE;
49
50 private:
51  // Clears all hiding layers.  Note that in case that this method is called
52  // during an animation, the method call will cancel all of the animations
53  // and *not* call the registered callback.
54  void ClearHidingLayers();
55
56  std::map<aura::Window*, ui::Layer*> hiding_layers_;
57  scoped_ptr<base::OneShotTimer<DisplayConfiguratorAnimation> > timer_;
58
59  DISALLOW_COPY_AND_ASSIGN(DisplayConfiguratorAnimation);
60};
61
62}  // namespace ash
63
64#endif  // ASH_DISPLAY_DISPLAY_CONFIGURATION_CONTROLLER_H_
65