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      1 /*
      2  * Copyright (C) 2015 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 package com.android.systemui.statusbar.phone;
     17 
     18 import android.animation.Animator;
     19 import android.animation.Animator.AnimatorListener;
     20 import android.animation.ObjectAnimator;
     21 import android.content.Context;
     22 import android.util.AttributeSet;
     23 import android.view.HapticFeedbackConstants;
     24 import android.view.MotionEvent;
     25 import android.view.View;
     26 import android.view.ViewConfiguration;
     27 import android.view.animation.Animation;
     28 import android.view.animation.AnimationUtils;
     29 
     30 import com.android.keyguard.AlphaOptimizedImageButton;
     31 import com.android.systemui.Interpolators;
     32 
     33 public class SettingsButton extends AlphaOptimizedImageButton {
     34 
     35     private static final boolean TUNER_ENABLE_AVAILABLE = false;
     36 
     37     private static final long LONG_PRESS_LENGTH = 1000;
     38     private static final long ACCEL_LENGTH = 750;
     39     private static final long FULL_SPEED_LENGTH = 375;
     40     private static final long RUN_DURATION = 350;
     41 
     42     private boolean mUpToSpeed;
     43     private ObjectAnimator mAnimator;
     44 
     45     private float mSlop;
     46 
     47     public SettingsButton(Context context, AttributeSet attrs) {
     48         super(context, attrs);
     49         mSlop = ViewConfiguration.get(getContext()).getScaledTouchSlop();
     50     }
     51 
     52     public boolean isAnimating() {
     53         return mAnimator != null && mAnimator.isRunning();
     54     }
     55 
     56     public boolean isTunerClick() {
     57         return mUpToSpeed;
     58     }
     59 
     60     @Override
     61     public boolean onTouchEvent(MotionEvent event) {
     62         switch (event.getActionMasked()) {
     63             case MotionEvent.ACTION_DOWN:
     64                 if (TUNER_ENABLE_AVAILABLE) postDelayed(mLongPressCallback, LONG_PRESS_LENGTH);
     65                 break;
     66             case MotionEvent.ACTION_UP:
     67                 if (mUpToSpeed) {
     68                     startExitAnimation();
     69                 } else {
     70                     cancelLongClick();
     71                 }
     72                 break;
     73             case MotionEvent.ACTION_CANCEL:
     74                 cancelLongClick();
     75                 break;
     76             case MotionEvent.ACTION_MOVE:
     77                 float x = event.getX();
     78                 float y = event.getY();
     79                 if ((x < -mSlop) || (y < -mSlop) || (x > getWidth() + mSlop)
     80                         || (y > getHeight() + mSlop)) {
     81                     cancelLongClick();
     82                 }
     83                 break;
     84         }
     85         return super.onTouchEvent(event);
     86     }
     87 
     88     private void cancelLongClick() {
     89         cancelAnimation();
     90         mUpToSpeed = false;
     91         removeCallbacks(mLongPressCallback);
     92     }
     93 
     94     private void cancelAnimation() {
     95         if (mAnimator != null) {
     96             mAnimator.removeAllListeners();
     97             mAnimator.cancel();
     98             mAnimator = null;
     99         }
    100     }
    101 
    102     private void startExitAnimation() {
    103         animate()
    104                 .translationX(((View) getParent().getParent()).getWidth() - getX())
    105                 .alpha(0)
    106                 .setDuration(RUN_DURATION)
    107                 .setInterpolator(AnimationUtils.loadInterpolator(mContext,
    108                         android.R.interpolator.accelerate_cubic))
    109                 .setListener(new AnimatorListener() {
    110                     @Override
    111                     public void onAnimationStart(Animator animation) {
    112                     }
    113 
    114                     @Override
    115                     public void onAnimationRepeat(Animator animation) {
    116                     }
    117 
    118                     @Override
    119                     public void onAnimationEnd(Animator animation) {
    120                         setAlpha(1f);
    121                         setTranslationX(0);
    122                         cancelLongClick();
    123                     }
    124 
    125                     @Override
    126                     public void onAnimationCancel(Animator animation) {
    127                     }
    128                 })
    129                 .start();
    130     }
    131 
    132     protected void startAccelSpin() {
    133         cancelAnimation();
    134         mAnimator = ObjectAnimator.ofFloat(this, View.ROTATION, 0, 360);
    135         mAnimator.setInterpolator(AnimationUtils.loadInterpolator(mContext,
    136                 android.R.interpolator.accelerate_quad));
    137         mAnimator.setDuration(ACCEL_LENGTH);
    138         mAnimator.addListener(new AnimatorListener() {
    139             @Override
    140             public void onAnimationStart(Animator animation) {
    141             }
    142 
    143             @Override
    144             public void onAnimationRepeat(Animator animation) {
    145             }
    146 
    147             @Override
    148             public void onAnimationEnd(Animator animation) {
    149                 startContinuousSpin();
    150             }
    151 
    152             @Override
    153             public void onAnimationCancel(Animator animation) {
    154             }
    155         });
    156         mAnimator.start();
    157     }
    158 
    159     protected void startContinuousSpin() {
    160         cancelAnimation();
    161         performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
    162         mUpToSpeed = true;
    163         mAnimator = ObjectAnimator.ofFloat(this, View.ROTATION, 0, 360);
    164         mAnimator.setInterpolator(Interpolators.LINEAR);
    165         mAnimator.setDuration(FULL_SPEED_LENGTH);
    166         mAnimator.setRepeatCount(Animation.INFINITE);
    167         mAnimator.start();
    168     }
    169 
    170     private final Runnable mLongPressCallback = new Runnable() {
    171         @Override
    172         public void run() {
    173             startAccelSpin();
    174         }
    175     };
    176 }
    177