Extracted InkDropAnimator class from InkDropAnimationController.

ui/views/animation/ink_drop_animation.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef UI_VIEWS_ANIMATION_INK_DROP_ANIMATION_CONTROLLER_IMPL_H_
-#define UI_VIEWS_ANIMATION_INK_DROP_ANIMATION_CONTROLLER_IMPL_H_
+#ifndef UI_VIEWS_ANIMATION_INK_DROP_ANIMATION_H_
+#define UI_VIEWS_ANIMATION_INK_DROP_ANIMATION_H_
 
+#include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/time/time.h"
-#include "ui/events/event_handler.h"
 #include "ui/gfx/geometry/rect.h"
-#include "ui/gfx/geometry/size.h"
-#include "ui/views/animation/ink_drop_animation_controller.h"
+#include "ui/views/animation/ink_drop_state.h"
 #include "ui/views/views_export.h"
 
 namespace ui {
 class Layer;
-}
+}  // namespace ui
 
 namespace views {
 class AppearAnimationObserver;
 class InkDropDelegate;
-class InkDropHost;
-class View;
 
-// Controls an ink drop animation which is hosted by an InkDropHost.
-class VIEWS_EXPORT InkDropAnimationControllerImpl
-    : public InkDropAnimationController {
+// An ink drop animation that animates between the different InkDropStates.
+class VIEWS_EXPORT InkDropAnimation {
  public:
-  // Constructs an ink drop controller that will attach the ink drop to the
-  // given |ink_drop_host|.
-  explicit InkDropAnimationControllerImpl(InkDropHost* ink_drop_host);
-  ~InkDropAnimationControllerImpl() override;
+  InkDropAnimation();
+  ~InkDropAnimation();
 
-  // InkDropAnimationController:
-  void AnimateToState(InkDropState state) override;
-  void SetInkDropSize(const gfx::Size& size) override;
-  gfx::Rect GetInkDropBounds() const override;
-  void SetInkDropBounds(const gfx::Rect& bounds) override;
+  // The root that can be added in to a Layer tree.
+  ui::Layer* root_layer() { return root_layer_.get(); }
+
+  // Animates from the current |state_| to |state|.
+  void AnimateToState(InkDropState state);
+
+  // Sets the size of the ink drop.
+  void SetInkDropSize(const gfx::Size& size);
+
+  // Returns the ink drop bounds.
+  gfx::Rect GetInkDropBounds() const;
+
+  // Sets the bounds for the ink drop. |bounds| are in the coordinate space of
+  // the parent ui::Layer that the ink drop layer is added to.
+  void SetInkDropBounds(const gfx::Rect& bounds);
 
  private:
   // Starts the animation of a touch event.
   void AnimateTapDown();
 
   // Schedules the hide animation of |ink_drop_layer_| for once its current
   // animation has completed. If |ink_drop_layer_| is not animating, the hide
   // animation begins immediately.
   void AnimateHide();
 
   // Starts the animation of a long press, and cancels hiding |ink_drop_layer_|
   // until the long press has completed.
   void AnimateLongPress();
 
   // Starts the showing animation on |layer|, with a |duration| in milliseconds.
   void AnimateShow(ui::Layer* layer,
                    AppearAnimationObserver* observer,
                    base::TimeDelta duration);
 
   // Sets the bounds for |layer|.
   void SetLayerBounds(ui::Layer* layer);
 
   // Initializes |layer|'s properties.
   void SetupAnimationLayer(ui::Layer* layer, InkDropDelegate* delegate);
 
-  InkDropHost* ink_drop_host_;
-
   // The root layer that parents the animating layers.
   scoped_ptr<ui::Layer> root_layer_;
 
   // The layer used for animating a user touch.
   scoped_ptr<ui::Layer> ink_drop_layer_;
 
   // ui::LayerDelegate responsible for painting to |ink_drop_layer_|.
   scoped_ptr<InkDropDelegate> ink_drop_delegate_;
 
   // ui::ImplicitAnimationObserver which observes |ink_drop_layer_| and can be
   // used to automatically trigger a hide animation upon completion.
   scoped_ptr<AppearAnimationObserver> appear_animation_observer_;
 
   // The layer used for animating a long press.
   scoped_ptr<ui::Layer> long_press_layer_;
 
   // ui::LayerDelegate responsible for painting to |long_press_layer_|.
   scoped_ptr<InkDropDelegate> long_press_delegate_;
 
   // ui::ImplicitAnimationObserver which observers |long_press_layer_| and can
   // be used to automatically trigger a hide animation upon completion.
   scoped_ptr<AppearAnimationObserver> long_press_animation_observer_;
 
   // The bounds of the ink drop layers. Defined in the coordinate space of the
   // parent ui::Layer that the ink drop layers were added to.
   gfx::Rect ink_drop_bounds_;
 
-  DISALLOW_COPY_AND_ASSIGN(InkDropAnimationControllerImpl);
+  DISALLOW_COPY_AND_ASSIGN(InkDropAnimation);
 };
 
 }  // namespace views
 
-#endif  // UI_VIEWS_ANIMATION_INK_DROP_ANIMATION_CONTROLLER_IMPL_H_
+#endif  // UI_VIEWS_ANIMATION_INK_DROP_ANIMATION_H_