Ref count layer animation controllers.

cc/layer_impl.cc

 // Copyright 2011 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 "cc/layer_impl.h"
 
 #include "base/debug/trace_event.h"
 #include "base/stringprintf.h"
 #include "base/values.h"
 #include "cc/debug_border_draw_quad.h"
@@ skipping 32 matching lines @@
     , m_useParentBackfaceVisibility(false)
     , m_drawCheckerboardForMissingTiles(false)
     , m_drawsContent(false)
     , m_forceRenderSurface(false)
     , m_isContainerForFixedPositionLayers(false)
     , m_fixedToContainerLayer(false)
     , m_drawDepth(0)
 #ifndef NDEBUG
     , m_betweenWillDrawAndDidDraw(false)
 #endif
-    , m_layerAnimationController(LayerAnimationController::create(this))
 {
     DCHECK(m_layerId > 0);
     DCHECK(m_layerTreeImpl);
     m_layerTreeImpl->RegisterLayer(this);
+    AnimationRegistrar* registrar = m_layerTreeImpl;
+    m_layerAnimationController = registrar->GetAnimationControllerForId(m_layerId);
+    m_layerAnimationController->addObserver(this);
 }
 
 LayerImpl::~LayerImpl()
 {
 #ifndef NDEBUG
     DCHECK(!m_betweenWillDrawAndDidDraw);
 #endif
     m_layerTreeImpl->UnregisterLayer(this);
+    m_layerAnimationController->removeObserver(this);
 }
 
 void LayerImpl::addChild(scoped_ptr<LayerImpl> child)
 {
     child->setParent(this);
     DCHECK_EQ(layerTreeImpl(), child->layerTreeImpl());
     m_children.append(child.Pass());
     layerTreeImpl()->SetNeedsUpdateDrawProperties();
 }
 
@@ skipping 376 matching lines @@
 bool LayerImpl::layerIsAlwaysDamaged() const
 {
     return false;
 }
 
 int LayerImpl::id() const
 {
      return m_layerId;
 }
 
-float LayerImpl::opacity() const
-{
-     return m_opacity;
-}
-
-void LayerImpl::setOpacityFromAnimation(float opacity)
+void LayerImpl::OnOpacityAnimated(float opacity)
 {
     setOpacity(opacity);
 }
 
-const gfx::Transform& LayerImpl::transform() const
-{
-     return m_transform;
-}
-
-void LayerImpl::setTransformFromAnimation(const gfx::Transform& transform)
+void LayerImpl::OnTransformAnimated(const gfx::Transform& transform)
 {
     setTransform(transform);
 }
 
 void LayerImpl::setBounds(const gfx::Size& bounds)
 {
     if (m_bounds == bounds)
         return;
 
     m_bounds = bounds;
@@ skipping 131 matching lines @@
 
 void LayerImpl::setOpacity(float opacity)
 {
     if (m_opacity == opacity)
         return;
 
     m_opacity = opacity;
     noteLayerSurfacePropertyChanged();
 }
 
+float LayerImpl::opacity() const
+{
+    return m_opacity;
+}
+
 bool LayerImpl::opacityIsAnimating() const
 {
     return m_layerAnimationController->isAnimatingProperty(ActiveAnimation::Opacity);
 }
 
 void LayerImpl::setPosition(const gfx::PointF& position)
 {
     if (m_position == position)
         return;
 
@@ skipping 22 matching lines @@
 
 void LayerImpl::setTransform(const gfx::Transform& transform)
 {
     if (m_transform == transform)
         return;
 
     m_transform = transform;
     noteLayerSurfacePropertyChanged();
 }
 
+const gfx::Transform& LayerImpl::transform() const
+{
+    return m_transform;
+}
+
 bool LayerImpl::transformIsAnimating() const
 {
     return m_layerAnimationController->isAnimatingProperty(ActiveAnimation::Transform);
 }
 
 void LayerImpl::setContentBounds(const gfx::Size& contentBounds)
 {
     if (this->contentBounds() == contentBounds)
         return;
 
@@ skipping 101 matching lines @@
 
 void LayerImpl::setVerticalScrollbarLayer(ScrollbarLayerImpl* scrollbarLayer)
 {
     if (!m_scrollbarAnimationController)
         m_scrollbarAnimationController = ScrollbarAnimationController::create(this);
     m_scrollbarAnimationController->setVerticalScrollbarLayer(scrollbarLayer);
     m_scrollbarAnimationController->updateScrollOffset(this);
 }
 
 }  // namespace cc