Move Animatable* hierarchy into new folder.

Source/core/animation/AnimatableValue.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
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * 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 AnimatableValue_h
-#define AnimatableValue_h
-
-#include "core/css/CSSValue.h"
-#include "platform/heap/Handle.h"
-#include "wtf/RefCounted.h"
-
-namespace WebCore {
-
-class AnimatableValue : public RefCountedWillBeGarbageCollectedFinalized<AnimatableValue> {
-public:
-    virtual ~AnimatableValue() { }
-
-    static const AnimatableValue* neutralValue();
-
-    static PassRefPtrWillBeRawPtr<AnimatableValue> interpolate(const AnimatableValue*, const AnimatableValue*, double fraction);
-    static double distance(const AnimatableValue* from, const AnimatableValue* to);
-    static bool usesDefaultInterpolation(const AnimatableValue* from, const AnimatableValue* to)
-    {
-        return !from->isSameType(to) || from->usesDefaultInterpolationWith(to);
-    }
-
-    bool equals(const AnimatableValue* value) const
-    {
-        return isSameType(value) && equalTo(value);
-    }
-    bool equals(const AnimatableValue& value) const
-    {
-        return equals(&value);
-    }
-
-    bool isClipPathOperation() const { return type() == TypeClipPathOperation; }
-    bool isColor() const { return type() == TypeColor; }
-    bool isDouble() const { return type() == TypeDouble; }
-    bool isFilterOperations() const { return type() == TypeFilterOperations; }
-    bool isImage() const { return type() == TypeImage; }
-    bool isLength() const { return type() == TypeLength; }
-    bool isLengthBox() const { return type() == TypeLengthBox; }
-    bool isLengthBoxAndBool() const { return type() == TypeLengthBoxAndBool; }
-    bool isLengthPoint() const { return type() == TypeLengthPoint; }
-    bool isLengthPoint3D() const { return type() == TypeLengthPoint3D; }
-    bool isLengthSize() const { return type() == TypeLengthSize; }
-    bool isNeutral() const { return type() == TypeNeutral; }
-    bool isRepeatable() const { return type() == TypeRepeatable; }
-    bool isSVGLength() const { return type() == TypeSVGLength; }
-    bool isSVGPaint() const { return type() == TypeSVGPaint; }
-    bool isShadow() const { return type() == TypeShadow; }
-    bool isShapeValue() const { return type() == TypeShapeValue; }
-    bool isStrokeDasharrayList() const { return type() == TypeStrokeDasharrayList; }
-    bool isTransform() const { return type() == TypeTransform; }
-    bool isUnknown() const { return type() == TypeUnknown; }
-    bool isVisibility() const { return type() == TypeVisibility; }
-
-    bool isSameType(const AnimatableValue* value) const
-    {
-        ASSERT(value);
-        return value->type() == type();
-    }
-
-    virtual void trace(Visitor*) { }
-
-protected:
-    enum AnimatableType {
-        TypeClipPathOperation,
-        TypeColor,
-        TypeDouble,
-        TypeFilterOperations,
-        TypeImage,
-        TypeLength,
-        TypeLengthBox,
-        TypeLengthBoxAndBool,
-        TypeLengthPoint,
-        TypeLengthPoint3D,
-        TypeLengthSize,
-        TypeNeutral,
-        TypeRepeatable,
-        TypeSVGLength,
-        TypeSVGPaint,
-        TypeShadow,
-        TypeShapeValue,
-        TypeStrokeDasharrayList,
-        TypeTransform,
-        TypeUnknown,
-        TypeVisibility,
-    };
-
-    virtual bool usesDefaultInterpolationWith(const AnimatableValue* value) const { return false; }
-    virtual PassRefPtrWillBeRawPtr<AnimatableValue> interpolateTo(const AnimatableValue*, double fraction) const = 0;
-    static PassRefPtrWillBeRawPtr<AnimatableValue> defaultInterpolateTo(const AnimatableValue* left, const AnimatableValue* right, double fraction) { return takeConstRef((fraction < 0.5) ? left : right); }
-
-    template <class T>
-    static PassRefPtrWillBeRawPtr<T> takeConstRef(const T* value) { return PassRefPtrWillBeRawPtr<T>(const_cast<T*>(value)); }
-
-private:
-    virtual AnimatableType type() const = 0;
-    // Implementations can assume that the object being compared has the same type as the object this is called on
-    virtual bool equalTo(const AnimatableValue*) const = 0;
-
-    virtual double distanceTo(const AnimatableValue*) const;
-
-    template <class Keyframe> friend class KeyframeEffectModel;
-};
-
-#define DEFINE_ANIMATABLE_VALUE_TYPE_CASTS(thisType, predicate) \
-    DEFINE_TYPE_CASTS(thisType, AnimatableValue, value, value->predicate, value.predicate)
-
-} // namespace WebCore
-
-#endif // AnimatableValue_h