Introduce KeyframeEffectReadOnly interface

third_party/WebKit/Source/core/animation/KeyframeEffect.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 KeyframeEffect_h
 #define KeyframeEffect_h
 
 #include "core/CoreExport.h"
-#include "core/animation/AnimationEffectReadOnly.h"
 #include "core/animation/EffectInput.h"
 #include "core/animation/EffectModel.h"
+#include "core/animation/KeyframeEffectReadOnly.h"
 #include "core/animation/TimingInput.h"
 #include "platform/heap/Handle.h"
 #include "wtf/RefPtr.h"
 
 namespace blink {
 
 class KeyframeEffectOptions;
 class Dictionary;
 class Element;
 class ExceptionState;
 class PropertyHandle;
 class SampledEffect;
 
 // Represents the effect of an Animation on an Element's properties.
 // http://w3c.github.io/web-animations/#keyframe-effect
-class CORE_EXPORT KeyframeEffect final : public AnimationEffectReadOnly {
+class CORE_EXPORT KeyframeEffect final : public KeyframeEffectReadOnly {
     DEFINE_WRAPPERTYPEINFO();
 public:
-    enum Priority { DefaultPriority, TransitionPriority };
-
-    static KeyframeEffect* create(Element*, EffectModel*, const Timing&, Priority = DefaultPriority, EventDelegate* = nullptr);
+    static KeyframeEffect* create(Element*, EffectModel*, const Timing&, KeyframeEffectReadOnly::Priority = KeyframeEffectReadOnly::DefaultPriority, EventDelegate* = nullptr);
     // Web Animations API Bindings constructors.
     static KeyframeEffect* create(ExecutionContext*, Element*, const DictionarySequenceOrDictionary& effectInput, double duration, ExceptionState&);
     static KeyframeEffect* create(ExecutionContext*, Element*, const DictionarySequenceOrDictionary& effectInput, const KeyframeEffectOptions& timingInput, ExceptionState&);
     static KeyframeEffect* create(ExecutionContext*, Element*, const DictionarySequenceOrDictionary& effectInput, ExceptionState&);
 
     ~KeyframeEffect() override;
 
     bool isKeyframeEffect() const override { return true; }
 
     bool affects(PropertyHandle) const;
     const EffectModel* model() const { return m_model.get(); }
     EffectModel* model() { return m_model.get(); }
     void setModel(EffectModel* model) { m_model = model; }
-    Priority getPriority() const { return m_priority; }
+    KeyframeEffectReadOnly::Priority getPriority() const { return m_priority; }
     Element* target() const { return m_target; }
 
     void notifySampledEffectRemovedFromAnimationStack();
 
     bool isCandidateForAnimationOnCompositor(double animationPlaybackRate) const;
     // Must only be called once.
     bool maybeStartAnimationOnCompositor(int group, double startTime, double timeOffset, double animationPlaybackRate);
     bool hasActiveAnimationsOnCompositor() const;
     bool hasActiveAnimationsOnCompositor(CSSPropertyID) const;
     bool cancelAnimationOnCompositor();
     void restartAnimationOnCompositor();
     void cancelIncompatibleAnimationsOnCompositor();
     void pauseAnimationForTestingOnCompositor(double pauseTime);
 
     void attachCompositedLayers();
 
     void setCompositorAnimationIdsForTesting(const Vector<int>& compositorAnimationIds) { m_compositorAnimationIds = compositorAnimationIds; }
 
     DECLARE_VIRTUAL_TRACE();
 
-    void downgradeToNormal() { m_priority = DefaultPriority; }
+    void downgradeToNormal() { m_priority = KeyframeEffectReadOnly::DefaultPriority; }
 
 protected:
     void applyEffects();
     void clearEffects();
     void updateChildrenAndEffects() const override;
     void attach(Animation*) override;
     void detach() override;
     void specifiedTimingChanged() override;
     double calculateTimeToEffectChange(bool forwards, double inheritedTime, double timeToNextIteration) const override;
     virtual bool hasIncompatibleStyle();
     bool hasMultipleTransformProperties() const;
 
 private:
-    KeyframeEffect(Element*, EffectModel*, const Timing&, Priority, EventDelegate*);
-
-    Member<Element> m_target;
-    Member<EffectModel> m_model;
-    Member<SampledEffect> m_sampledEffect;
-
-    Priority m_priority;
+    KeyframeEffect(Element*, EffectModel*, const Timing&, KeyframeEffectReadOnly::Priority, EventDelegate*);
 
     Vector<int> m_compositorAnimationIds;
 
     friend class AnimationAnimationV8Test;
 };
 
 DEFINE_TYPE_CASTS(KeyframeEffect, AnimationEffectReadOnly, animationNode, animationNode->isKeyframeEffect(), animationNode.isKeyframeEffect());
 
 } // namespace blink
 
 #endif // KeyframeEffect_h