CC Animation: Move animations_ from ElementAnimations to AnimationPlayer.

cc/animation/animation_player.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 CC_ANIMATION_ANIMATION_PLAYER_H_
 #define CC_ANIMATION_ANIMATION_PLAYER_H_
 
+#include <bitset>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/time/time.h"
 #include "cc/animation/animation.h"
 #include "cc/animation/animation_curve.h"
 #include "cc/animation/element_animations.h"
+#include "cc/animation/element_id.h"
 #include "cc/base/cc_export.h"
 
 namespace cc {
 
 class AnimationDelegate;
+class AnimationEvents;
 class AnimationHost;
 class AnimationTimeline;
-class ElementAnimations;
 
 // An AnimationPlayer owns all animations to be run on particular CC Layer.
 // Multiple AnimationPlayers can be attached to one layer. In this case,
 // they share common ElementAnimations so the
 // ElementAnimations-to-Layer relationship is 1:1.
 // For now, the blink logic is responsible for handling of conflicting
 // same-property animations.
 // Each AnimationPlayer has its copy on the impl thread.
 // This is a CC counterpart for blink::AnimationPlayer (in 1:1 relationship).
 class CC_EXPORT AnimationPlayer : public base::RefCounted<AnimationPlayer> {
@@ skipping 32 matching lines @@
   void AddAnimation(std::unique_ptr<Animation> animation);
   void PauseAnimation(int animation_id, double time_offset);
   void RemoveAnimation(int animation_id);
   void AbortAnimation(int animation_id);
   void AbortAnimations(TargetProperty::Type target_property,
                        bool needs_completion);
 
   void PushPropertiesTo(AnimationPlayer* player_impl);
 
   // AnimationDelegate routing.
-  void NotifyAnimationStarted(base::TimeTicks monotonic_time,
-                              TargetProperty::Type target_property,
-                              int group);
-  void NotifyAnimationFinished(base::TimeTicks monotonic_time,
-                               TargetProperty::Type target_property,
-                               int group);
-  void NotifyAnimationAborted(base::TimeTicks monotonic_time,
-                              TargetProperty::Type target_property,
-                              int group);
-  void NotifyAnimationWaitingForDeletion();
-  void NotifyAnimationTakeover(base::TimeTicks monotonic_time,
-                               TargetProperty::Type target_property,
-                               double animation_start_time,
-                               std::unique_ptr<AnimationCurve> curve);
+  bool NotifyAnimationStarted(const AnimationEvent& event);
+  bool NotifyAnimationFinished(const AnimationEvent& event);
+  bool NotifyAnimationAborted(const AnimationEvent& event);
+  void NotifyAnimationTakeover(const AnimationEvent& event);
+  bool NotifyAnimationFinishedForTesting(TargetProperty::Type target_property,
+                                         int group_id);
+
+  // Returns true if there are any animations that have neither finished nor
+  // aborted.
+  bool HasActiveAnimation() const;
 
   // Returns true if there are any animations at all to process.
   bool has_any_animation() const { return !animations_.empty(); }
 
   bool needs_push_properties() const { return needs_push_properties_; }
   void SetNeedsPushProperties();
 
+  bool HasNonDeletedAnimation() const;
+
+  using Animations = std::vector<std::unique_ptr<Animation>>;
+  const Animations& animations() const { return animations_; }
+
+  bool needs_to_start_animations() const { return needs_to_start_animations_; }
+
+  void StartAnimations(base::TimeTicks monotonic_time);
+  void PromoteStartedAnimations(base::TimeTicks monotonic_time,
+                                AnimationEvents* events);
+  void MarkAnimationsForDeletion(base::TimeTicks monotonic_time,
+                                 AnimationEvents* events);
+  void TickAnimations(base::TimeTicks monotonic_time);
+  void MarkFinishedAnimations(base::TimeTicks monotonic_time);
+
+  // Make animations affect active elements if and only if they affect
+  // pending elements. Any animations that no longer affect any elements
+  // are deleted.
+  void ActivateAnimations(bool* changed_transform_animation,
+                          bool* changed_opacity_animation,
+                          bool* changed_filter_animation);
+
+  bool HasFilterAnimationThatInflatesBounds() const;
+  bool HasTransformAnimationThatInflatesBounds() const;
+
+  bool TransformAnimationBoundsForBox(const gfx::BoxF& box,
+                                      gfx::BoxF* bounds) const;
+  bool HasAnimationThatAffectsScale() const;
+  bool HasOnlyTranslationTransforms(ElementListType list_type) const;
+  bool AnimationsPreserveAxisAlignment() const;
+
+  // Sets |start_scale| to the maximum of starting animation scale along any
+  // dimension at any destination in active animations. Returns false if the
+  // starting scale cannot be computed.
+  bool AnimationStartScale(ElementListType list_type, float* start_scale) const;
+
+  // Sets |max_scale| to the maximum scale along any dimension at any
+  // destination in active animations. Returns false if the maximum scale cannot
+  // be computed.
+  bool MaximumTargetScale(ElementListType list_type, float* max_scale) const;
+
+  // Returns true if there is an animation that is either currently animating
+  // the given property or scheduled to animate this property in the future, and
+  // that affects the given tree type.
+  bool IsPotentiallyAnimatingProperty(TargetProperty::Type target_property,
+                                      ElementListType list_type) const;
+
+  // Returns true if there is an animation that is currently animating the given
+  // property and that affects the given tree type.
+  bool IsCurrentlyAnimatingProperty(TargetProperty::Type target_property,
+                                    ElementListType list_type) const;
+
+  bool HasElementInActiveList() const;
+  gfx::ScrollOffset ScrollOffsetForAnimation() const;
+
+  // Returns the active animation animating the given property that is either
+  // running, or is next to run, if such an animation exists.
+  Animation* GetAnimation(TargetProperty::Type target_property) const;
+
+  // Returns the active animation for the given unique animation id.
+  Animation* GetAnimationById(int animation_id) const;
+
  private:
   friend class base::RefCounted<AnimationPlayer>;
 
   explicit AnimationPlayer(int id);
   ~AnimationPlayer();
 
+  // A set of target properties. TargetProperty must be 0-based enum.
+  using TargetProperties =
+      std::bitset<TargetProperty::LAST_TARGET_PROPERTY + 1>;
+
   void SetNeedsCommit();
 
   void RegisterPlayer();
   void UnregisterPlayer();
 
   void BindElementAnimations();
   void UnbindElementAnimations();
 
-  // We accumulate added animations in animations_ container
-  // if element_animations_ is a nullptr. It allows us to add/remove animations
-  // to non-attached AnimationPlayers.
-  std::vector<std::unique_ptr<Animation>> animations_;
+  void AnimationAddedForProperty(TargetProperty::Type target_property);
+
+  void MarkAbortedAnimationsForDeletion(
+      AnimationPlayer* animation_player_impl) const;
+  void PurgeAnimationsMarkedForDeletion();
+  void PushNewAnimationsToImplThread(
+      AnimationPlayer* animation_player_impl) const;
+  void RemoveAnimationsCompletedOnMainThread(
+      AnimationPlayer* animation_player_impl) const;
+  void PushPropertiesToImplThread(AnimationPlayer* animation_player_impl);
+
+  Animations animations_;
 
   AnimationHost* animation_host_;
   AnimationTimeline* animation_timeline_;
   // element_animations isn't null if player attached to an element (layer).
   scoped_refptr<ElementAnimations> element_animations_;
   AnimationDelegate* animation_delegate_;
 
   int id_;
   ElementId element_id_;
   bool needs_push_properties_;
+  base::TimeTicks last_tick_time_;
+
+  // Only try to start animations when new animations are added or when the
+  // previous attempt at starting animations failed to start all animations.
+  bool needs_to_start_animations_;
 
   DISALLOW_COPY_AND_ASSIGN(AnimationPlayer);
 };
 
 }  // namespace cc
 
 #endif  // CC_ANIMATION_ANIMATION_PLAYER_H_