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      1 /*
      2  * Copyright (C) 2014 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 #ifndef ANIMATORMANAGER_H
     17 #define ANIMATORMANAGER_H
     18 
     19 #include <vector>
     20 
     21 #include <cutils/compiler.h>
     22 #include <utils/StrongPointer.h>
     23 
     24 #include "utils/Macros.h"
     25 
     26 namespace android {
     27 namespace uirenderer {
     28 
     29 class AnimationHandle;
     30 class BaseRenderNodeAnimator;
     31 class RenderNode;
     32 class TreeInfo;
     33 
     34 // Responsible for managing the animators for a single RenderNode
     35 class AnimatorManager {
     36     PREVENT_COPY_AND_ASSIGN(AnimatorManager);
     37 public:
     38     AnimatorManager(RenderNode& parent);
     39     ~AnimatorManager();
     40 
     41     void addAnimator(const sp<BaseRenderNodeAnimator>& animator);
     42     void removeAnimator(const sp<BaseRenderNodeAnimator>& animator);
     43 
     44     void setAnimationHandle(AnimationHandle* handle);
     45     bool hasAnimationHandle() { return mAnimationHandle; }
     46 
     47     void pushStaging();
     48     void onAnimatorTargetChanged(BaseRenderNodeAnimator* animator);
     49 
     50     // Returns the combined dirty mask of all animators run
     51     uint32_t animate(TreeInfo& info);
     52 
     53     void animateNoDamage(TreeInfo& info);
     54 
     55     // Hard-ends all animators. May only be called on the UI thread.
     56     ANDROID_API void endAllStagingAnimators();
     57 
     58     // Hard-ends all animators that have been pushed. Used for cleanup if
     59     // the ActivityContext is being destroyed
     60     void endAllActiveAnimators();
     61 
     62     bool hasAnimators() { return mAnimators.size(); }
     63 
     64 private:
     65     uint32_t animateCommon(TreeInfo& info);
     66 
     67     RenderNode& mParent;
     68     AnimationHandle* mAnimationHandle;
     69 
     70     // To improve the efficiency of resizing & removing from the vector
     71     std::vector< sp<BaseRenderNodeAnimator> > mNewAnimators;
     72     std::vector< sp<BaseRenderNodeAnimator> > mAnimators;
     73 };
     74 
     75 } /* namespace uirenderer */
     76 } /* namespace android */
     77 
     78 #endif /* ANIMATORMANAGER_H */
     79