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      1 /*
      2  * Copyright (C) 2009 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef AndroidAnimation_h
     18 #define AndroidAnimation_h
     19 
     20 #if USE(ACCELERATED_COMPOSITING)
     21 
     22 #include "FloatPoint.h"
     23 #include "FloatPoint3D.h"
     24 #include "GraphicsLayer.h"
     25 #include "HashMap.h"
     26 #include "LayerAndroid.h"
     27 #include "RefPtr.h"
     28 #include "Timer.h"
     29 #include "TransformOperation.h"
     30 #include "Vector.h"
     31 
     32 namespace WebCore {
     33 
     34 class TimingFunction;
     35 
     36 class AndroidAnimation : public ThreadSafeRefCounted<AndroidAnimation> {
     37 public:
     38     AndroidAnimation(AnimatedPropertyID type,
     39                      const Animation* animation,
     40                      KeyframeValueList* operations,
     41                      double beginTime);
     42 
     43     virtual ~AndroidAnimation();
     44     void suggestBeginTime(double time);
     45     double elapsedTime(double time);
     46     void pickValues(double progress, int* start, int* end);
     47     bool checkIterationsAndProgress(double time, float* finalProgress);
     48     double applyTimingFunction(float from, float to, double progress,
     49                                const TimingFunction* timingFunction);
     50     bool evaluate(LayerAndroid* layer, double time);
     51     virtual void applyForProgress(LayerAndroid* layer, float progress) = 0;
     52     static long instancesCount();
     53 
     54     // Since this class is shared between WebKit/UI thread, deep copy the name in the setter and
     55     // don't share the value of m_name - this way this AndroidAnimation can be safely destroyed on
     56     //any thread, since it is deref'd on both
     57     void setName(const String& name) { m_name = name.threadsafeCopy(); }
     58     bool isNamed(const String& name) { return m_name == name; }
     59     String nameCopy() { return m_name.threadsafeCopy(); }
     60 
     61     AnimatedPropertyID type() { return m_type; }
     62     bool fillsBackwards() { return m_fillsBackwards; }
     63     bool fillsForwards() { return m_fillsForwards; }
     64     int uniqueId() { return m_uniqueId; }
     65 
     66 protected:
     67     double m_beginTime;
     68     double m_duration;
     69     bool m_fillsBackwards;
     70     bool m_fillsForwards;
     71     int m_iterationCount;
     72     int m_direction;
     73     RefPtr<TimingFunction> m_timingFunction;
     74     String m_name; // Unique to this object, see comments for 'name' functions above
     75     AnimatedPropertyID m_type;
     76     KeyframeValueList* m_operations;
     77     int m_uniqueId;
     78     bool m_hasFinished;
     79 };
     80 
     81 class AndroidOpacityAnimation : public AndroidAnimation {
     82 public:
     83     static PassRefPtr<AndroidOpacityAnimation> create(const Animation* animation,
     84                                                       KeyframeValueList* operations,
     85                                                       double beginTime);
     86     AndroidOpacityAnimation(const Animation* animation,
     87                             KeyframeValueList* operations,
     88                             double beginTime);
     89 
     90     virtual void applyForProgress(LayerAndroid* layer, float progress);
     91 };
     92 
     93 class AndroidTransformAnimation : public AndroidAnimation {
     94 public:
     95     static PassRefPtr<AndroidTransformAnimation> create(
     96                                                      const Animation* animation,
     97                                                      KeyframeValueList* operations,
     98                                                      double beginTime);
     99     AndroidTransformAnimation(const Animation* animation,
    100                               KeyframeValueList* operations,
    101                               double beginTime);
    102 
    103     virtual void applyForProgress(LayerAndroid* layer, float progress);
    104 };
    105 
    106 } // namespace WebCore
    107 
    108 
    109 #endif // USE(ACCELERATED_COMPOSITING)
    110 
    111 #endif // AndroidAnimation_h
    112