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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:
      7  *
      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
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     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
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #ifndef AnimatableImage_h
     32 #define AnimatableImage_h
     33 
     34 #include "core/animation/animatable/AnimatableValue.h"
     35 #include "core/css/CSSCrossfadeValue.h"
     36 #include "core/rendering/style/StyleImage.h"
     37 
     38 namespace blink {
     39 
     40 class AnimatableImage FINAL : public AnimatableValue {
     41 public:
     42     virtual ~AnimatableImage() { }
     43     static PassRefPtrWillBeRawPtr<AnimatableImage> create(PassRefPtrWillBeRawPtr<CSSValue> value)
     44     {
     45         return adoptRefWillBeNoop(new AnimatableImage(value));
     46     }
     47     CSSValue* toCSSValue() const { return m_value.get(); }
     48 
     49     virtual void trace(Visitor* visitor) OVERRIDE
     50     {
     51         visitor->trace(m_value);
     52         AnimatableValue::trace(visitor);
     53     }
     54 
     55 protected:
     56     virtual PassRefPtrWillBeRawPtr<AnimatableValue> interpolateTo(const AnimatableValue*, double fraction) const OVERRIDE;
     57     virtual bool usesDefaultInterpolationWith(const AnimatableValue*) const OVERRIDE;
     58 
     59 private:
     60     AnimatableImage(PassRefPtrWillBeRawPtr<CSSValue> value)
     61         : m_value(value)
     62     {
     63         ASSERT(m_value.get());
     64     }
     65     virtual AnimatableType type() const OVERRIDE { return TypeImage; }
     66     virtual bool equalTo(const AnimatableValue*) const OVERRIDE;
     67 
     68     const RefPtrWillBeMember<CSSValue> m_value;
     69 };
     70 
     71 DEFINE_ANIMATABLE_VALUE_TYPE_CASTS(AnimatableImage, isImage());
     72 
     73 } // namespace blink
     74 
     75 #endif // AnimatableImage_h
     76