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      1 /*
      2  * Copyright (C) 2009 Apple Inc. All rights reserved.
      3  * Copyright (C) 2013 Intel Corporation. All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  *
     14  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
     15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     17  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     18  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     19  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     20  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     21  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     22  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     24  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     25  */
     26 
     27 #ifndef KeyframeValueList_h
     28 #define KeyframeValueList_h
     29 
     30 #include "core/platform/animation/AnimationValue.h"
     31 
     32 #include "wtf/OwnPtr.h"
     33 #include "wtf/PassOwnPtr.h"
     34 #include "wtf/Vector.h"
     35 
     36 namespace WebCore {
     37 
     38 enum AnimatedPropertyID {
     39     AnimatedPropertyInvalid,
     40     AnimatedPropertyWebkitTransform,
     41     AnimatedPropertyOpacity,
     42     AnimatedPropertyBackgroundColor,
     43     AnimatedPropertyWebkitFilter
     44 };
     45 
     46 // Used to store a series of values in a keyframe list.
     47 // Values will all be of the same type, which can be inferred from the property.
     48 class KeyframeValueList {
     49 public:
     50     explicit KeyframeValueList(AnimatedPropertyID property)
     51         : m_property(property)
     52     {
     53     }
     54 
     55     KeyframeValueList(const KeyframeValueList& other)
     56         : m_property(other.property())
     57     {
     58         for (size_t i = 0; i < other.m_values.size(); ++i)
     59             m_values.append(other.m_values[i]->clone());
     60     }
     61 
     62     KeyframeValueList& operator=(const KeyframeValueList& other)
     63     {
     64         KeyframeValueList copy(other);
     65         swap(copy);
     66         return *this;
     67     }
     68 
     69     void swap(KeyframeValueList& other)
     70     {
     71         std::swap(m_property, other.m_property);
     72         m_values.swap(other.m_values);
     73     }
     74 
     75     AnimatedPropertyID property() const { return m_property; }
     76 
     77     size_t size() const { return m_values.size(); }
     78     const AnimationValue* at(size_t i) const { return m_values.at(i).get(); }
     79 
     80     // Insert, sorted by keyTime.
     81     void insert(PassOwnPtr<const AnimationValue>);
     82 
     83 protected:
     84     Vector<OwnPtr<const AnimationValue> > m_values;
     85     AnimatedPropertyID m_property;
     86 };
     87 
     88 } // namespace WebCore
     89 
     90 #endif // KeyframeValueList_h
     91