ash/rotator/screen_rotation_animation.h

   1 // Copyright 2015 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_ROTATOR_SCREEN_ROTATION_ANIMATION_H_
   6 #define ASH_ROTATOR_SCREEN_ROTATION_ANIMATION_H_
   7
   8 #include <stdint.h>
   9
  10 #include "ash/ash_export.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "base/time/time.h"
  13 #include "ui/compositor/layer_animation_element.h"
  14 #include "ui/gfx/animation/tween.h"
  15 #include "ui/gfx/geometry/point.h"
  16
  17 namespace ui {
  18 class InterpolatedTransform;
  19 class Layer;
  20 }
  21
  22 namespace ash {
  23
  24 // A LayerAnimationElement that will animate a layer by rotating it around a
  25 // pivot point.
  26 class ASH_EXPORT ScreenRotationAnimation : public ui::LayerAnimationElement {
  27  public:
  28   // Creates an animation element that will rotate |layer| from |start_degrees|
  29   // to |end_degrees| around the given |pivot| and will take |duration| amount
  30   // of time.
  31   ScreenRotationAnimation(ui::Layer* layer,
  32                           int start_degrees,
  33                           int end_degrees,
  34                           float initial_opacity,
  35                           float target_opacity,
  36                           gfx::Point pivot,
  37                           base::TimeDelta duration,
  38                           gfx::Tween::Type twen_type);
  39   ~ScreenRotationAnimation() override;
  40
  41  private:
  42   // Implementation of ui::LayerAnimationDelegate
  43   void OnStart(ui::LayerAnimationDelegate* delegate) override;
  44   bool OnProgress(double current,
  45                   ui::LayerAnimationDelegate* delegate) override;
  46   void OnGetTarget(TargetValue* target) const override;
  47   void OnAbort(ui::LayerAnimationDelegate* delegate) override;
  48
  49   // The root InterpolatedTransform that defines the animation.
  50   scoped_ptr<ui::InterpolatedTransform> interpolated_transform_;
  51
  52   // The Tween type to use for the animation.
  53   gfx::Tween::Type tween_type_;
  54
  55   // The initial layer opacity to start the animation with.
  56   float initial_opacity_;
  57
  58   // The target layer opacity to end the animation with.
  59   float target_opacity_;
  60
  61   DISALLOW_COPY_AND_ASSIGN(ScreenRotationAnimation);
  62 };
  63
  64 }  // namespace ash
  65
  66 #endif  // ASH_ROTATOR_SCREEN_ROTATION_ANIMATION_H_