Reland r107720 - Enable the new layer animation framework.

ui/gfx/compositor/layer_animator.cc

Index: ui/gfx/compositor/layer_animator.cc
diff --git a/ui/gfx/compositor/layer_animator.cc b/ui/gfx/compositor/layer_animator.cc
index e737377c86c600ca0674470eba190fc75b18ee7f..339bb3870714543351f5e5b9cca52549a57ee89a 100644
--- a/ui/gfx/compositor/layer_animator.cc
+++ b/ui/gfx/compositor/layer_animator.cc
@@ -10,7 +10,7 @@
 #include "ui/base/animation/animation_container.h"
 #include "ui/gfx/compositor/compositor.h"
 #include "ui/gfx/compositor/layer.h"
-#include "ui/gfx/compositor/layer_animation_delegate.h"
+#include "ui/gfx/compositor/layer_animator_delegate.h"
 #include "ui/gfx/compositor/layer_animation_sequence.h"
 
 namespace ui {
@@ -55,30 +55,45 @@ void LayerAnimator::SetTransform(const Transform& transform) {
   if (transition_duration_ == base::TimeDelta())
     delegate_->SetTransformFromAnimation(transform);
   else
-    StartAnimation(new LayerAnimationSequence(
-        LayerAnimationElement::CreateTransformElement(transform,
-                                                      transition_duration_)));
+    StartAnimationElement(LayerAnimationElement::CreateTransformElement(
+        transform, transition_duration_));
+}
+
+Transform LayerAnimator::GetTargetTransform() const {
+  LayerAnimationElement::TargetValue target;
+  GetTargetValue(&target);
+  return target.transform;
 }
 
 void LayerAnimator::SetBounds(const gfx::Rect& bounds) {
   if (transition_duration_ == base::TimeDelta())
     delegate_->SetBoundsFromAnimation(bounds);
   else
-    StartAnimation(new LayerAnimationSequence(
-        LayerAnimationElement::CreateBoundsElement(bounds,
-                                                   transition_duration_)));
+    StartAnimationElement(LayerAnimationElement::CreateBoundsElement(
+        bounds, transition_duration_));
+}
+
+gfx::Rect LayerAnimator::GetTargetBounds() const {
+  LayerAnimationElement::TargetValue target;
+  GetTargetValue(&target);
+  return target.bounds;
 }
 
 void LayerAnimator::SetOpacity(float opacity) {
   if (transition_duration_ == base::TimeDelta())
     delegate_->SetOpacityFromAnimation(opacity);
   else
-    StartAnimation(new LayerAnimationSequence(
-        LayerAnimationElement::CreateOpacityElement(opacity,
-                                                    transition_duration_)));
+    StartAnimationElement(LayerAnimationElement::CreateOpacityElement(
+        opacity, transition_duration_));
 }
 
-void LayerAnimator::SetDelegate(LayerAnimationDelegate* delegate) {
+float LayerAnimator::GetTargetOpacity() const {
+  LayerAnimationElement::TargetValue target;
+  GetTargetValue(&target);
+  return target.opacity;
+}
+
+void LayerAnimator::SetDelegate(LayerAnimatorDelegate* delegate) {
   DCHECK(delegate);
   delegate_ = delegate;
 }
@@ -107,6 +122,7 @@ void LayerAnimator::StartAnimation(LayerAnimationSequence* animation) {
     }
   }
   FinishAnyAnimationWithZeroDuration();
+  UpdateAnimationState();
 }
 
 void LayerAnimator::ScheduleAnimation(LayerAnimationSequence* animation) {
@@ -116,6 +132,7 @@ void LayerAnimator::ScheduleAnimation(LayerAnimationSequence* animation) {
   } else {
     StartSequenceImmediately(animation);
   }
+  UpdateAnimationState();
 }
 
 void LayerAnimator::ScheduleTogether(
@@ -141,6 +158,24 @@ void LayerAnimator::ScheduleTogether(
   for (iter = animations.begin(); iter != animations.end(); ++iter) {
     ScheduleAnimation(*iter);
   }
+
+  UpdateAnimationState();
+}
+
+void LayerAnimator::StartAnimationElement(LayerAnimationElement* animation) {
+  StartAnimation(new LayerAnimationSequence(animation));
+}
+
+void LayerAnimator::ScheduleAnimationElement(LayerAnimationElement* animation) {
+  ScheduleAnimation(new LayerAnimationSequence(animation));
+}
+
+void LayerAnimator::ScheduleElementsTogether(
+    const std::vector<LayerAnimationElement*>& animations) {
+  std::vector<LayerAnimationSequence*> sequences;
+  for (size_t i = 0; i < animations.size(); ++i)
+    sequences.push_back(new LayerAnimationSequence(animations[i]));
+  ScheduleTogether(sequences);
 }
 
 void LayerAnimator::StopAnimatingProperty(
@@ -158,10 +193,24 @@ void LayerAnimator::StopAnimating() {
     FinishAnimation(running_animations_[0].sequence);
 }
 
+LayerAnimator::ScopedSettings::ScopedSettings(LayerAnimator* animator)
+    : animator_(animator),
+      old_transition_duration_(animator->transition_duration_) {
+}
+
+LayerAnimator::ScopedSettings::~ScopedSettings() {
+  animator_->transition_duration_ = old_transition_duration_;
+}
+
+void LayerAnimator::ScopedSettings::SetTransitionDuration(
+    base::TimeDelta duration) {
+  animator_->transition_duration_ = duration;
+}
+
 // LayerAnimator private -------------------------------------------------------
 
 void LayerAnimator::Step(base::TimeTicks now) {
-  TRACE_EVENT0("LayerAnimator", "Step");
+  //TRACE_EVENT0("LayerAnimator", "Step");

[sky, 2011/10/26 15:39:15]

Remove if not needed.

   last_step_time_ = now;
   std::vector<LayerAnimationSequence*> to_finish;
   for (RunningAnimations::iterator iter = running_animations_.begin();
@@ -228,6 +277,7 @@ void LayerAnimator::RemoveAnimation(LayerAnimationSequence* sequence) {
 
 void LayerAnimator::FinishAnimation(LayerAnimationSequence* sequence) {
   sequence->Progress(sequence->duration(), delegate());
+  delegate()->OnLayerAnimationEnded(sequence);
   RemoveAnimation(sequence);
   ProcessQueue();
   UpdateAnimationState();
@@ -243,6 +293,7 @@ void LayerAnimator::FinishAnyAnimationWithZeroDuration() {
     if (running_animations_[i].sequence->duration() == base::TimeDelta()) {
       running_animations_[i].sequence->Progress(
           running_animations_[i].sequence->duration(), delegate());
+      delegate()->OnLayerAnimationEnded(running_animations_[i].sequence);
       RemoveAnimation(running_animations_[i].sequence);
     } else {
       ++i;
@@ -300,11 +351,13 @@ void LayerAnimator::RemoveAllAnimationsWithACommonProperty(
     if (running_animations_[i].sequence->HasCommonProperty(
             sequence->properties())) {
       // Finish the animation.
-      if (abort)
+      if (abort){
         running_animations_[i].sequence->Abort();
-      else
+      } else {
         running_animations_[i].sequence->Progress(
             running_animations_[i].sequence->duration(), delegate());
+        delegate()->OnLayerAnimationEnded(running_animations_[i].sequence);
+      }
       RemoveAnimation(running_animations_[i].sequence);
     } else {
       ++i;
@@ -331,6 +384,7 @@ void LayerAnimator::ImmediatelySetNewTarget(LayerAnimationSequence* sequence) {
   const bool abort = false;
   RemoveAllAnimationsWithACommonProperty(sequence, abort);
   sequence->Progress(sequence->duration(), delegate());
+  delegate()->OnLayerAnimationEnded(sequence);
   RemoveAnimation(sequence);
 }
 
@@ -377,10 +431,8 @@ void LayerAnimator::ProcessQueue() {
   bool started_sequence = false;
   do {
     started_sequence = false;
-
     // Build a list of all currently animated properties.
     LayerAnimationElement::AnimatableProperties animated;
-
     for (RunningAnimations::const_iterator iter = running_animations_.begin();
          iter != running_animations_.end(); ++iter) {
       animated.insert((*iter).sequence->properties().begin(),
@@ -440,4 +492,12 @@ bool LayerAnimator::StartSequenceImmediately(LayerAnimationSequence* sequence) {
   return true;
 }
 
+void LayerAnimator::GetTargetValue(
+    LayerAnimationElement::TargetValue* target) const {
+  for (RunningAnimations::const_iterator iter = running_animations_.begin();
+       iter != running_animations_.end(); ++iter) {
+    (*iter).sequence->GetTargetValue(target);
+  }
+}
+
 }  // namespace ui