Web Animations: Trigger and update CSS Animations backed by the Web Animations model

Source/core/animation/ActiveAnimations.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 14 matching lines @@
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef ActiveAnimations_h
 #define ActiveAnimations_h
 
 #include "core/animation/AnimationStack.h"
+#include "core/animation/css/CSSAnimations.h"
 #include "wtf/HashMap.h"
 #include "wtf/RefPtr.h"
 #include "wtf/Vector.h"
 
 namespace WebCore {
 
-class AnimationStack;
-
 class ActiveAnimations {
 public:
     AnimationStack* defaultStack() { return &m_defaultStack; }
-    bool isEmpty() const { return !m_defaultStack.hasActiveAnimations(); }
+    CSSAnimations* cssAnimations() { return &m_cssAnimations; }

[shans, 2013/08/01 23:54:16]

Add a comment describing what goes in defaultStack and what goes in
cssAnimations. e.g. it's not obvious that all of the animations referenced in
cssAnimations will also be in the defaultStack (right?), but that CSS
Transitions is non-intersecting.

[dstockwell, 2013/08/02 00:11:01]

Done.

+    bool isEmpty() const { return m_defaultStack.isEmpty() && m_cssAnimations.isEmpty(); }
 private:
     AnimationStack m_defaultStack;
+    CSSAnimations m_cssAnimations;
     // FIXME: Add AnimationStack for CSS Transitions
-    // FIXME: Add tracking data for CSS Animations
 };
 
 } // namespace WebCore
 
 #endif