Home | History | Annotate | Download | only in hwui
      1 /*
      2  * Copyright (C) 2016 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 #pragma once
     18 
     19 #include "Animator.h"
     20 #include "Interpolator.h"
     21 #include "PropertyValuesHolder.h"
     22 
     23 namespace android {
     24 namespace uirenderer {
     25 
     26 class PropertyAnimator {
     27 public:
     28     PropertyAnimator(PropertyValuesHolder* holder, Interpolator* interpolator, nsecs_t startDelay,
     29                      nsecs_t duration, int repeatCount, RepeatMode repeatMode);
     30     void setCurrentPlayTime(nsecs_t playTime);
     31     nsecs_t getTotalDuration() { return mTotalDuration; }
     32     // fraction range: [0, 1], iteration range [0, repeatCount]
     33     void setFraction(float fraction, long iteration);
     34 
     35 private:
     36     std::unique_ptr<PropertyValuesHolder> mPropertyValuesHolder;
     37     std::unique_ptr<Interpolator> mInterpolator;
     38     nsecs_t mStartDelay;
     39     nsecs_t mDuration;
     40     uint32_t mRepeatCount;
     41     nsecs_t mTotalDuration;
     42     RepeatMode mRepeatMode;
     43     double mLatestFraction = 0;
     44 };
     45 
     46 // TODO: This class should really be named VectorDrawableAnimator
     47 class ANDROID_API PropertyValuesAnimatorSet : public BaseRenderNodeAnimator {
     48 public:
     49     friend class PropertyAnimatorSetListener;
     50     PropertyValuesAnimatorSet();
     51 
     52     void start(AnimationListener* listener);
     53     void reverse(AnimationListener* listener);
     54     virtual void reset() override;
     55     virtual void end() override;
     56 
     57     void addPropertyAnimator(PropertyValuesHolder* propertyValuesHolder,
     58                              Interpolator* interpolators, int64_t startDelays, nsecs_t durations,
     59                              int repeatCount, RepeatMode repeatMode);
     60     virtual uint32_t dirtyMask();
     61     bool isInfinite() { return mIsInfinite; }
     62     void setVectorDrawable(VectorDrawableRoot* vd) { mVectorDrawable = vd; }
     63     VectorDrawableRoot* getVectorDrawable() const { return mVectorDrawable.get(); }
     64     AnimationListener* getOneShotListener() { return mOneShotListener.get(); }
     65     void clearOneShotListener() { mOneShotListener = nullptr; }
     66     uint32_t getRequestId() const { return mRequestId; }
     67 
     68 protected:
     69     virtual float getValue(RenderNode* target) const override;
     70     virtual void setValue(RenderNode* target, float value) override;
     71     virtual void onPlayTimeChanged(nsecs_t playTime) override;
     72 
     73 private:
     74     void init();
     75     void onFinished(BaseRenderNodeAnimator* animator);
     76     // Listener set from outside
     77     sp<AnimationListener> mOneShotListener;
     78     std::vector<std::unique_ptr<PropertyAnimator> > mAnimators;
     79     float mLastFraction = 0.0f;
     80     bool mInitialized = false;
     81     sp<VectorDrawableRoot> mVectorDrawable;
     82     bool mIsInfinite = false;
     83     // This request id gets incremented (on UI thread only) when a new request to modfiy the
     84     // lifecycle of an animation happens, namely when start/end/reset/reverse is called.
     85     uint32_t mRequestId = 0;
     86 };
     87 
     88 class PropertyAnimatorSetListener : public AnimationListener {
     89 public:
     90     explicit PropertyAnimatorSetListener(PropertyValuesAnimatorSet* set) : mSet(set) {}
     91     virtual void onAnimationFinished(BaseRenderNodeAnimator* animator) override;
     92 
     93 private:
     94     PropertyValuesAnimatorSet* mSet;
     95 };
     96 
     97 }  // namespace uirenderer
     98 }  // namespace android
     99