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 #include "ui/gfx/geometry/point3_f.h"
  17
  18 namespace ui {
  19 class InterpolatedTransform;
  20 class Layer;
  21 }
  22
  23 namespace ash {
  24
  25 // A LayerAnimationElement that will animate a layer by rotating it around a
  26 // pivot point.
  27 class ASH_EXPORT ScreenRotationAnimation : public ui::LayerAnimationElement {
  28  public:
  29   // Creates an animation element that will rotate |layer| from |start_degrees|
  30   // to |end_degrees| around the given |pivot|.  The animation will take
  31   // |duration| amount of time and |layer| will be scaled as defined by the
  32   // |initial_scale| and |target_scale| values.
  33   ScreenRotationAnimation(ui::Layer* layer,
  34                           int start_degrees,
  35                           int end_degrees,
  36                           float initial_opacity,
  37                           float target_opacity,
  38                           const gfx::Point3F& initial_scale,
  39                           const gfx::Point3F& target_scale,
  40                           gfx::Point pivot,
  41                           base::TimeDelta duration,
  42                           gfx::Tween::Type twen_type);
  43   ~ScreenRotationAnimation() override;
  44
  45  private:
  46   // Implementation of ui::LayerAnimationDelegate
  47   void OnStart(ui::LayerAnimationDelegate* delegate) override;
  48   bool OnProgress(double current,
  49                   ui::LayerAnimationDelegate* delegate) override;
  50   void OnGetTarget(TargetValue* target) const override;
  51   void OnAbort(ui::LayerAnimationDelegate* delegate) override;
  52
  53   // The root InterpolatedTransform that defines the animation.
  54   scoped_ptr<ui::InterpolatedTransform> interpolated_transform_;
  55
  56   // The Tween type to use for the animation.
  57   gfx::Tween::Type tween_type_;
  58
  59   // The initial layer opacity to start the animation with.
  60   float initial_opacity_;
  61
  62   // The target layer opacity to end the animation with.
  63   float target_opacity_;
  64
  65   DISALLOW_COPY_AND_ASSIGN(ScreenRotationAnimation);
  66 };
  67
  68 }  // namespace ash
  69
  70 #endif  // ASH_ROTATOR_SCREEN_ROTATION_ANIMATION_H_