ash/display/output_configurator_animation.h

   1 // Copyright (c) 2012 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_OUTPUT_CONFIGURATOR_ANIMATION_H_
   6 #define ASH_DISPLAY_OUTPUT_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 "chromeos/display/output_configurator.h"
  14
  15 namespace aura {
  16 class RootWindow;
  17 }  // namespace aura
  18
  19 namespace ui {
  20 class Layer;
  21 }  // namespace ui
  22
  23 namespace ash {
  24 namespace internal {
  25
  26 // OutputConfiguratorAnimation provides the visual effects for
  27 // chromeos::OutputConfigurator, such like fade-out/in during changing
  28 // the display mode.
  29 class ASH_EXPORT OutputConfiguratorAnimation
  30     : public chromeos::OutputConfigurator::Observer {
  31  public:
  32   OutputConfiguratorAnimation();
  33   virtual ~OutputConfiguratorAnimation();
  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   // chromeos::OutputConfigurator::Observer overrides:
  45   virtual void OnDisplayModeChanged() OVERRIDE;
  46   virtual void OnDisplayModeChangeFailed(
  47       chromeos::OutputState failed_new_state) OVERRIDE;
  48
  49  private:
  50   // Clears all hiding layers.  Note that in case that this method is called
  51   // during an animation, the method call will cancel all of the animations
  52   // and *not* call the registered callback.
  53   void ClearHidingLayers();
  54
  55   std::map<aura::RootWindow*, ui::Layer*> hiding_layers_;
  56   scoped_ptr<base::OneShotTimer<OutputConfiguratorAnimation> > timer_;
  57
  58   DISALLOW_COPY_AND_ASSIGN(OutputConfiguratorAnimation);
  59 };
  60
  61 }  // namespace internal
  62 }  // namespace ash
  63
  64 #endif  // ASH_DISPLAY_OUTPUT_CONFIGURATION_CONTROLLER_H_