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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 
     17 package com.android.systemui.assist;
     18 
     19 import android.annotation.Nullable;
     20 import android.content.Context;
     21 import android.util.AttributeSet;
     22 import android.view.View;
     23 import android.view.animation.AnimationUtils;
     24 import android.view.animation.Interpolator;
     25 import android.widget.FrameLayout;
     26 
     27 import com.android.systemui.R;
     28 
     29 public class AssistOrbContainer extends FrameLayout {
     30 
     31     private static final long EXIT_START_DELAY = 150;
     32 
     33     private final Interpolator mLinearOutSlowInInterpolator;
     34     private final Interpolator mFastOutLinearInInterpolator;
     35 
     36     private View mScrim;
     37     private View mNavbarScrim;
     38     private AssistOrbView mOrb;
     39 
     40     private boolean mAnimatingOut;
     41 
     42     public AssistOrbContainer(Context context) {
     43         this(context, null);
     44     }
     45 
     46     public AssistOrbContainer(Context context, @Nullable AttributeSet attrs) {
     47         this(context, attrs, 0);
     48     }
     49 
     50     public AssistOrbContainer(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
     51         super(context, attrs, defStyleAttr);
     52         mLinearOutSlowInInterpolator = AnimationUtils.loadInterpolator(context,
     53                 android.R.interpolator.linear_out_slow_in);
     54         mFastOutLinearInInterpolator = AnimationUtils.loadInterpolator(context,
     55                 android.R.interpolator.fast_out_slow_in);
     56     }
     57 
     58     @Override
     59     protected void onFinishInflate() {
     60         super.onFinishInflate();
     61         mScrim = findViewById(R.id.assist_orb_scrim);
     62         mNavbarScrim = findViewById(R.id.assist_orb_navbar_scrim);
     63         mOrb = (AssistOrbView) findViewById(R.id.assist_orb);
     64     }
     65 
     66     public void show(final boolean show, boolean animate) {
     67         if (show) {
     68             if (getVisibility() != View.VISIBLE) {
     69                 setVisibility(View.VISIBLE);
     70                 if (animate) {
     71                     startEnterAnimation();
     72                 } else {
     73                     reset();
     74                 }
     75             }
     76         } else {
     77             if (animate) {
     78                 startExitAnimation(new Runnable() {
     79                     @Override
     80                     public void run() {
     81                         mAnimatingOut = false;
     82                         setVisibility(View.GONE);
     83                     }
     84                 });
     85             } else {
     86                 setVisibility(View.GONE);
     87             }
     88         }
     89     }
     90 
     91     private void reset() {
     92         mAnimatingOut = false;
     93         mOrb.reset();
     94         mScrim.setAlpha(1f);
     95         mNavbarScrim.setAlpha(1f);
     96     }
     97 
     98     private void startEnterAnimation() {
     99         if (mAnimatingOut) {
    100             return;
    101         }
    102         mOrb.startEnterAnimation();
    103         mScrim.setAlpha(0f);
    104         mNavbarScrim.setAlpha(0f);
    105         post(new Runnable() {
    106             @Override
    107             public void run() {
    108                 mScrim.animate()
    109                         .alpha(1f)
    110                         .setDuration(300)
    111                         .setStartDelay(0)
    112                         .setInterpolator(mLinearOutSlowInInterpolator);
    113                 mNavbarScrim.animate()
    114                         .alpha(1f)
    115                         .setDuration(300)
    116                         .setStartDelay(0)
    117                         .setInterpolator(mLinearOutSlowInInterpolator);
    118             }
    119         });
    120     }
    121 
    122     private void startExitAnimation(final Runnable endRunnable) {
    123         if (mAnimatingOut) {
    124             if (endRunnable != null) {
    125                 endRunnable.run();
    126             }
    127             return;
    128         }
    129         mAnimatingOut = true;
    130         mOrb.startExitAnimation(EXIT_START_DELAY);
    131         mScrim.animate()
    132                 .alpha(0f)
    133                 .setDuration(250)
    134                 .setStartDelay(EXIT_START_DELAY)
    135                 .setInterpolator(mFastOutLinearInInterpolator);
    136         mNavbarScrim.animate()
    137                 .alpha(0f)
    138                 .setDuration(250)
    139                 .setStartDelay(EXIT_START_DELAY)
    140                 .setInterpolator(mFastOutLinearInInterpolator)
    141                 .withEndAction(endRunnable);
    142     }
    143 
    144     /**
    145      * Whether the panel is showing, or, if it's animating, whether it will be
    146      * when the animation is done.
    147      */
    148     public boolean isShowing() {
    149         return getVisibility() == View.VISIBLE && !mAnimatingOut;
    150     }
    151 
    152     public AssistOrbView getOrb() {
    153         return mOrb;
    154     }
    155 }
    156