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ui/views/animation/bounds_animator.h

Index: ui/views/animation/bounds_animator.h
diff --git a/ui/views/animation/bounds_animator.h b/ui/views/animation/bounds_animator.h
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--- a/ui/views/animation/bounds_animator.h
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-// Copyright (c) 2012 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_BOUNDS_ANIMATOR_H_
-#define UI_VIEWS_ANIMATION_BOUNDS_ANIMATOR_H_
-
-#include <map>
-
-#include "base/compiler_specific.h"
-#include "base/memory/ref_counted.h"
-#include "base/observer_list.h"
-#include "ui/gfx/animation/animation_container_observer.h"
-#include "ui/gfx/animation/animation_delegate.h"
-#include "ui/gfx/animation/tween.h"
-#include "ui/gfx/rect.h"
-#include "ui/views/views_export.h"
-
-namespace gfx {
-class SlideAnimation;
-}
-
-namespace views {
-
-class BoundsAnimatorObserver;
-class View;
-
-// Bounds animator is responsible for animating the bounds of a view from the
-// the views current location and size to a target position and size. To use
-// BoundsAnimator invoke AnimateViewTo for the set of views you want to
-// animate.
-//
-// BoundsAnimator internally creates an animation for each view. If you need
-// a specific animation invoke SetAnimationForView after invoking AnimateViewTo.
-// You can attach an AnimationDelegate to the individual animation for a view
-// by way of SetAnimationDelegate. Additionally you can attach an observer to
-// the BoundsAnimator that is notified when all animations are complete.
-class VIEWS_EXPORT BoundsAnimator : public gfx::AnimationDelegate,
-                                    public gfx::AnimationContainerObserver {
- public:
-  explicit BoundsAnimator(View* view);
-  virtual ~BoundsAnimator();
-
-  // Starts animating |view| from its current bounds to |target|. If there is
-  // already an animation running for the view it's stopped and a new one
-  // started. If an AnimationDelegate has been set for |view| it is removed
-  // (after being notified that the animation was canceled).
-  void AnimateViewTo(View* view, const gfx::Rect& target);
-
-  // Similar to |AnimateViewTo|, but does not reset the animation, only the
-  // target bounds. If |view| is not being animated this is the same as
-  // invoking |AnimateViewTo|.
-  void SetTargetBounds(View* view, const gfx::Rect& target);
-
-  // Returns the target bounds for the specified view. If |view| is not
-  // animating its current bounds is returned.
-  gfx::Rect GetTargetBounds(View* view);
-
-  // Sets the animation for the specified view. BoundsAnimator takes ownership
-  // of the specified animation.
-  void SetAnimationForView(View* view, gfx::SlideAnimation* animation);
-
-  // Returns the animation for the specified view. BoundsAnimator owns the
-  // returned Animation.
-  const gfx::SlideAnimation* GetAnimationForView(View* view);
-
-  // Stops animating the specified view.
-  void StopAnimatingView(View* view);
-
-  // Sets the delegate for the animation for the specified view.
-  void SetAnimationDelegate(View* view,
-                            scoped_ptr<gfx::AnimationDelegate> delegate);
-
-  // Returns true if BoundsAnimator is animating the bounds of |view|.
-  bool IsAnimating(View* view) const;
-
-  // Returns true if BoundsAnimator is animating any view.
-  bool IsAnimating() const;
-
-  // Cancels all animations, leaving the views at their current location and
-  // size. Any views marked for deletion are deleted.
-  void Cancel();
-
-  // Overrides default animation duration. |duration_ms| is the new duration in
-  // milliseconds.
-  void SetAnimationDuration(int duration_ms);
-
-  // Gets the currently used animation duration.
-  int GetAnimationDuration() const { return animation_duration_ms_; }
-
-  // Sets the tween type for new animations. Default is EASE_OUT.
-  void set_tween_type(gfx::Tween::Type type) { tween_type_ = type; }
-
-  void AddObserver(BoundsAnimatorObserver* observer);
-  void RemoveObserver(BoundsAnimatorObserver* observer);
-
- protected:
-  // Creates the animation to use for animating views.
-  virtual gfx::SlideAnimation* CreateAnimation();
-
- private:
-  // Tracks data about the view being animated.
-  struct Data {
-    Data() : animation(NULL), delegate(NULL) {}
-
-    // The initial bounds.
-    gfx::Rect start_bounds;
-
-    // Target bounds.
-    gfx::Rect target_bounds;
-
-    // The animation. We own this.
-    gfx::SlideAnimation* animation;
-
-    // Delegate for the animation, may be null. We own this.
-    gfx::AnimationDelegate* delegate;
-  };
-
-  // Used by AnimationEndedOrCanceled.
-  enum AnimationEndType {
-    ANIMATION_ENDED,
-    ANIMATION_CANCELED
-  };
-
-  typedef std::map<View*, Data> ViewToDataMap;
-
-  typedef std::map<const gfx::Animation*, View*> AnimationToViewMap;
-
-  // Removes references to |view| and its animation. This does NOT delete the
-  // animation or delegate.
-  void RemoveFromMaps(View* view);
-
-  // Does the necessary cleanup for |data|. If |send_cancel| is true and a
-  // delegate has been installed on |data| AnimationCanceled is invoked on it.
-  void CleanupData(bool send_cancel, Data* data, View* view);
-
-  // Used when changing the animation for a view. This resets the maps for
-  // the animation used by view and returns the current animation. Ownership
-  // of the returned animation passes to the caller.
-  gfx::Animation* ResetAnimationForView(View* view);
-
-  // Invoked from AnimationEnded and AnimationCanceled.
-  void AnimationEndedOrCanceled(const gfx::Animation* animation,
-                                AnimationEndType type);
-
-  // gfx::AnimationDelegate overrides.
-  virtual void AnimationProgressed(const gfx::Animation* animation) override;
-  virtual void AnimationEnded(const gfx::Animation* animation) override;
-  virtual void AnimationCanceled(const gfx::Animation* animation) override;
-
-  // gfx::AnimationContainerObserver overrides.
-  virtual void AnimationContainerProgressed(
-      gfx::AnimationContainer* container) override;
-  virtual void AnimationContainerEmpty(
-      gfx::AnimationContainer* container) override;
-
-  // Parent of all views being animated.
-  View* parent_;
-
-  ObserverList<BoundsAnimatorObserver> observers_;
-
-  // All animations we create up with the same container.
-  scoped_refptr<gfx::AnimationContainer> container_;
-
-  // Maps from view being animated to info about the view.
-  ViewToDataMap data_;
-
-  // Maps from animation to view.
-  AnimationToViewMap animation_to_view_;
-
-  // As the animations we create update (AnimationProgressed is invoked) this
-  // is updated. When all the animations have completed for a given tick of
-  // the timer (AnimationContainerProgressed is invoked) the parent_ is asked
-  // to repaint these bounds.
-  gfx::Rect repaint_bounds_;
-
-  int animation_duration_ms_;
-
-  gfx::Tween::Type tween_type_;
-
-  DISALLOW_COPY_AND_ASSIGN(BoundsAnimator);
-};
-
-}  // namespace views
-
-#endif  // UI_VIEWS_ANIMATION_BOUNDS_ANIMATOR_H_