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/memory/weak_ptr.h"
  13 #include "base/timer/timer.h"
  14 #include "ui/display/chromeos/display_configurator.h"
  15
  16 namespace aura {
  17 class RootWindow;
  18 class Window;
  19 }  // namespace aura
  20
  21 namespace ui {
  22 class Layer;
  23 }  // namespace ui
  24
  25 namespace ash {
  26
  27 // DisplayConfiguratorAnimation provides the visual effects for
  28 // ui::DisplayConfigurator, such like fade-out/in during changing
  29 // the display mode.
  30 class ASH_EXPORT DisplayConfiguratorAnimation
  31     : public ui::DisplayConfigurator::Observer {
  32  public:
  33   DisplayConfiguratorAnimation();
  34   ~DisplayConfiguratorAnimation() override;
  35
  36   // Starts the fade-out animation for the all root windows.  It will
  37   // call |callback| once all of the animations have finished.
  38   void StartFadeOutAnimation(base::Closure callback);
  39
  40   // Starts the animation to clear the fade-out animation effect
  41   // for the all root windows.
  42   void StartFadeInAnimation();
  43
  44  protected:
  45   // ui::DisplayConfigurator::Observer overrides:
  46   void OnDisplayModeChanged(
  47       const ui::DisplayConfigurator::DisplayStateList& outputs) override;
  48   void OnDisplayModeChangeFailed(
  49       const ui::DisplayConfigurator::DisplayStateList& displays,
  50       ui::MultipleDisplayState failed_new_state) override;
  51
  52  private:
  53   // Clears all hiding layers.  Note that in case that this method is called
  54   // during an animation, the method call will cancel all of the animations
  55   // and *not* call the registered callback.
  56   void ClearHidingLayers();
  57
  58   std::map<aura::Window*, ui::Layer*> hiding_layers_;
  59   scoped_ptr<base::OneShotTimer<DisplayConfiguratorAnimation> > timer_;
  60   base::WeakPtrFactory<DisplayConfiguratorAnimation> weak_ptr_factory_;
  61
  62   DISALLOW_COPY_AND_ASSIGN(DisplayConfiguratorAnimation);
  63 };
  64
  65 }  // namespace ash
  66
  67 #endif  // ASH_DISPLAY_DISPLAY_CONFIGURATION_CONTROLLER_H_