ash/display/display_configurator_animation.h

   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
  15 namespace aura {
  16 class RootWindow;
  17 class Window;
  18 }  // namespace aura
  19
  20 namespace ui {
  21 class Layer;
  22 }  // namespace ui
  23
  24 namespace ash {
  25
  26 // DisplayConfiguratorAnimation provides the visual effects for
  27 // ui::DisplayConfigurator, such like fade-out/in during changing
  28 // the display mode.
  29 class 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_