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