It is time.

ui/compositor/layer_animation_observer.cc

-// 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.
-
-#include "ui/compositor/layer_animation_observer.h"
-
-#include "ui/compositor/layer_animation_sequence.h"
-
-namespace ui {
-
-////////////////////////////////////////////////////////////////////////////////
-// LayerAnimationObserver
-
-LayerAnimationObserver::LayerAnimationObserver() {
-}
-
-LayerAnimationObserver::~LayerAnimationObserver() {
-  StopObserving();
-}
-
-bool LayerAnimationObserver::RequiresNotificationWhenAnimatorDestroyed() const {
-  return false;
-}
-
-void LayerAnimationObserver::OnAttachedToSequence(
-    LayerAnimationSequence* sequence) {
-}
-
-void LayerAnimationObserver::OnDetachedFromSequence(
-    LayerAnimationSequence* sequence) {
-}
-
-void LayerAnimationObserver::StopObserving() {
-  while (!attached_sequences_.empty()) {
-    LayerAnimationSequence* sequence = *attached_sequences_.begin();
-    sequence->RemoveObserver(this);
-  }
-}
-
-void LayerAnimationObserver::AttachedToSequence(
-    LayerAnimationSequence* sequence) {
-  DCHECK(attached_sequences_.find(sequence) == attached_sequences_.end());
-  attached_sequences_.insert(sequence);
-  OnAttachedToSequence(sequence);
-}
-
-void LayerAnimationObserver::DetachedFromSequence(
-    LayerAnimationSequence* sequence, bool send_notification) {
-  if (attached_sequences_.find(sequence) != attached_sequences_.end())
-    attached_sequences_.erase(sequence);
-  if (send_notification)
-    OnDetachedFromSequence(sequence);
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// ImplicitAnimationObserver
-
-ImplicitAnimationObserver::ImplicitAnimationObserver()
-    : active_(false),
-      destroyed_(NULL),
-      first_sequence_scheduled_(false) {
-}
-
-ImplicitAnimationObserver::~ImplicitAnimationObserver() {
-  if (destroyed_)
-    *destroyed_ = true;
-}
-
-void ImplicitAnimationObserver::SetActive(bool active) {
-  active_ = active;
-  CheckCompleted();
-}
-
-void ImplicitAnimationObserver::StopObservingImplicitAnimations() {
-  SetActive(false);
-  StopObserving();
-}
-
-bool ImplicitAnimationObserver::WasAnimationAbortedForProperty(
-    LayerAnimationElement::AnimatableProperty property) const {
-  return AnimationStatusForProperty(property) == ANIMATION_STATUS_ABORTED;
-}
-
-bool ImplicitAnimationObserver::WasAnimationCompletedForProperty(
-    LayerAnimationElement::AnimatableProperty property) const {
-  return AnimationStatusForProperty(property) == ANIMATION_STATUS_COMPLETED;
-}
-
-void ImplicitAnimationObserver::OnLayerAnimationEnded(
-    LayerAnimationSequence* sequence) {
-  UpdatePropertyAnimationStatus(sequence, ANIMATION_STATUS_COMPLETED);
-  bool destroyed = false;
-  destroyed_ = &destroyed;
-  sequence->RemoveObserver(this);
-  if (destroyed)
-    return;
-  destroyed_ = NULL;
-  DCHECK(attached_sequences().find(sequence) == attached_sequences().end());
-  CheckCompleted();
-}
-
-void ImplicitAnimationObserver::OnLayerAnimationAborted(
-    LayerAnimationSequence* sequence) {
-  UpdatePropertyAnimationStatus(sequence, ANIMATION_STATUS_ABORTED);
-  bool destroyed = false;
-  destroyed_ = &destroyed;
-  sequence->RemoveObserver(this);
-  if (destroyed)
-    return;
-  destroyed_ = NULL;
-  DCHECK(attached_sequences().find(sequence) == attached_sequences().end());
-  CheckCompleted();
-}
-
-void ImplicitAnimationObserver::OnLayerAnimationScheduled(
-    LayerAnimationSequence* sequence) {
-  if (!first_sequence_scheduled_) {
-    first_sequence_scheduled_ = true;
-    OnImplicitAnimationsScheduled();
-  }
-}
-
-void ImplicitAnimationObserver::OnAttachedToSequence(
-    LayerAnimationSequence* sequence) {
-}
-
-void ImplicitAnimationObserver::OnDetachedFromSequence(
-    LayerAnimationSequence* sequence) {
-  DCHECK(attached_sequences().find(sequence) == attached_sequences().end());
-  CheckCompleted();
-}
-
-void ImplicitAnimationObserver::CheckCompleted() {
-  if (active_ && attached_sequences().empty()) {
-    active_ = false;
-    OnImplicitAnimationsCompleted();
-  }
-}
-
-void ImplicitAnimationObserver::UpdatePropertyAnimationStatus(
-    LayerAnimationSequence* sequence,
-    AnimationStatus status) {
-  LayerAnimationElement::AnimatableProperties properties =
-      sequence->properties();
-  for (unsigned i = LayerAnimationElement::FIRST_PROPERTY;
-       i != LayerAnimationElement::SENTINEL;
-       i = i << 1) {
-    if (i & properties) {
-      LayerAnimationElement::AnimatableProperty property =
-          static_cast<LayerAnimationElement::AnimatableProperty>(i);
-      property_animation_status_[property] = status;
-    }
-  }
-}
-
-ImplicitAnimationObserver::AnimationStatus
-ImplicitAnimationObserver::AnimationStatusForProperty(
-    LayerAnimationElement::AnimatableProperty property) const {
-  PropertyAnimationStatusMap::const_iterator iter =
-      property_animation_status_.find(property);
-  return iter == property_animation_status_.end() ? ANIMATION_STATUS_UNKNOWN :
-      iter->second;
-}
-
-}  // namespace ui