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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 
     17 package com.android.systemui.qs;
     18 
     19 import android.animation.Animator;
     20 import android.animation.Animator.AnimatorListener;
     21 import android.animation.AnimatorListenerAdapter;
     22 import android.graphics.drawable.TransitionDrawable;
     23 import android.view.View;
     24 import android.view.ViewAnimationUtils;
     25 
     26 /** Helper for quick settings detail panel clip animations. **/
     27 public class QSDetailClipper {
     28 
     29     private final View mDetail;
     30     private final TransitionDrawable mBackground;
     31 
     32     private Animator mAnimator;
     33 
     34     public QSDetailClipper(View detail) {
     35         mDetail = detail;
     36         mBackground = (TransitionDrawable) detail.getBackground();
     37     }
     38 
     39     public void animateCircularClip(int x, int y, boolean in, AnimatorListener listener) {
     40         if (mAnimator != null) {
     41             mAnimator.cancel();
     42         }
     43         final int w = mDetail.getWidth() - x;
     44         final int h = mDetail.getHeight() - y;
     45         int r = (int) Math.ceil(Math.sqrt(x * x + y * y));
     46         r = (int) Math.max(r, Math.ceil(Math.sqrt(w * w + y * y)));
     47         r = (int) Math.max(r, Math.ceil(Math.sqrt(w * w + h * h)));
     48         r = (int) Math.max(r, Math.ceil(Math.sqrt(x * x + h * h)));
     49         if (in) {
     50             mAnimator = ViewAnimationUtils.createCircularReveal(mDetail, x, y, 0, r);
     51         } else {
     52             mAnimator = ViewAnimationUtils.createCircularReveal(mDetail, x, y, r, 0);
     53         }
     54         mAnimator.setDuration((long)(mAnimator.getDuration() * 1.5));
     55         if (listener != null) {
     56             mAnimator.addListener(listener);
     57         }
     58         if (in) {
     59             mBackground.startTransition((int)(mAnimator.getDuration() * 0.6));
     60             mAnimator.addListener(mVisibleOnStart);
     61         } else {
     62             mDetail.postDelayed(mReverseBackground, (long)(mAnimator.getDuration() * 0.65));
     63             mAnimator.addListener(mGoneOnEnd);
     64         }
     65         mAnimator.start();
     66     }
     67 
     68     private final Runnable mReverseBackground = new Runnable() {
     69         @Override
     70         public void run() {
     71             if (mAnimator != null) {
     72                 mBackground.reverseTransition((int)(mAnimator.getDuration() * 0.35));
     73             }
     74         }
     75     };
     76 
     77     private final AnimatorListenerAdapter mVisibleOnStart = new AnimatorListenerAdapter() {
     78         @Override
     79         public void onAnimationStart(Animator animation) {
     80             mDetail.setVisibility(View.VISIBLE);
     81         }
     82 
     83         public void onAnimationEnd(Animator animation) {
     84             mAnimator = null;
     85         }
     86     };
     87 
     88     private final AnimatorListenerAdapter mGoneOnEnd = new AnimatorListenerAdapter() {
     89         @Override
     90         public void onAnimationEnd(Animator animation) {
     91             mDetail.setVisibility(View.GONE);
     92             mBackground.resetTransition();
     93             mAnimator = null;
     94         };
     95     };
     96 }
     97