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      1 /*
      2  * Copyright (C) 2013 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
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      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #ifndef AnimatableRepeatable_h
     32 #define AnimatableRepeatable_h
     33 
     34 #include "core/animation/animatable/AnimatableValue.h"
     35 #include "wtf/Vector.h"
     36 
     37 namespace blink {
     38 
     39 // This class represents collections of values that animate in a repeated fashion as described by the CSS Transitions spec:
     40 // http://www.w3.org/TR/css3-transitions/#animtype-repeatable-list
     41 class AnimatableRepeatable : public AnimatableValue {
     42 public:
     43     virtual ~AnimatableRepeatable() { }
     44 
     45     // This will consume the vector passed into it.
     46     static PassRefPtrWillBeRawPtr<AnimatableRepeatable> create(WillBeHeapVector<RefPtrWillBeMember<AnimatableValue> >& values)
     47     {
     48         return adoptRefWillBeNoop(new AnimatableRepeatable(values));
     49     }
     50 
     51     const WillBeHeapVector<RefPtrWillBeMember<AnimatableValue> >& values() const { return m_values; }
     52 
     53     virtual void trace(Visitor*) OVERRIDE;
     54 
     55 protected:
     56     AnimatableRepeatable()
     57     {
     58     }
     59     AnimatableRepeatable(WillBeHeapVector<RefPtrWillBeMember<AnimatableValue> >& values)
     60     {
     61         ASSERT(!values.isEmpty());
     62         m_values.swap(values);
     63     }
     64 
     65     static bool interpolateLists(const WillBeHeapVector<RefPtrWillBeMember<AnimatableValue> >& fromValues, const WillBeHeapVector<RefPtrWillBeMember<AnimatableValue> >& toValues, double fraction, WillBeHeapVector<RefPtrWillBeMember<AnimatableValue> >& interpolatedValues);
     66 
     67     virtual bool usesDefaultInterpolationWith(const AnimatableValue*) const OVERRIDE;
     68 
     69     WillBeHeapVector<RefPtrWillBeMember<AnimatableValue> > m_values;
     70 
     71 private:
     72     virtual PassRefPtrWillBeRawPtr<AnimatableValue> interpolateTo(const AnimatableValue*, double fraction) const OVERRIDE;
     73 
     74     virtual AnimatableType type() const OVERRIDE { return TypeRepeatable; }
     75     virtual bool equalTo(const AnimatableValue*) const OVERRIDE FINAL;
     76 };
     77 
     78 DEFINE_TYPE_CASTS(AnimatableRepeatable, AnimatableValue, value, (value->isRepeatable() || value->isStrokeDasharrayList()), (value.isRepeatable() || value.isStrokeDasharrayList()));
     79 
     80 } // namespace blink
     81 
     82 #endif // AnimatableRepeatable_h
     83