Home | History | Annotate | Download | only in policy 
      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.statusbar.policy;
     18 
     19 import android.util.ArraySet;
     20 import android.view.LayoutInflater;
     21 import android.view.View;
     22 import android.view.ViewPropertyAnimator;
     23 import android.widget.FrameLayout;
     24 
     25 import com.android.internal.util.Preconditions;
     26 import com.android.systemui.Interpolators;
     27 import com.android.systemui.R;
     28 import com.android.systemui.statusbar.phone.ScrimController;
     29 import com.android.systemui.statusbar.phone.StatusBarWindowView;
     30 import com.android.systemui.statusbar.stack.NotificationStackScrollLayout;
     31 
     32 /**
     33  * Controls showing and hiding of the brightness mirror.
     34  */
     35 public class BrightnessMirrorController
     36         implements CallbackController<BrightnessMirrorController.BrightnessMirrorListener> {
     37 
     38     private final NotificationStackScrollLayout mStackScroller;
     39     public long TRANSITION_DURATION_OUT = 150;
     40     public long TRANSITION_DURATION_IN = 200;
     41 
     42     private final StatusBarWindowView mStatusBarWindow;
     43     private final ScrimController mScrimController;
     44     private final View mNotificationPanel;
     45     private final ArraySet<BrightnessMirrorListener> mBrightnessMirrorListeners = new ArraySet<>();
     46     private final int[] mInt2Cache = new int[2];
     47     private View mBrightnessMirror;
     48 
     49     public BrightnessMirrorController(StatusBarWindowView statusBarWindow,
     50             ScrimController scrimController) {
     51         mStatusBarWindow = statusBarWindow;
     52         mBrightnessMirror = statusBarWindow.findViewById(R.id.brightness_mirror);
     53         mNotificationPanel = statusBarWindow.findViewById(R.id.notification_panel);
     54         mStackScroller = (NotificationStackScrollLayout) statusBarWindow.findViewById(
     55                 R.id.notification_stack_scroller);
     56         mScrimController = scrimController;
     57     }
     58 
     59     public void showMirror() {
     60         mBrightnessMirror.setVisibility(View.VISIBLE);
     61         mStackScroller.setFadingOut(true);
     62         mScrimController.forceHideScrims(true /* hide */, true /* animated */);
     63         outAnimation(mNotificationPanel.animate())
     64                 .withLayer();
     65     }
     66 
     67     public void hideMirror() {
     68         mScrimController.forceHideScrims(false /* hide */, true /* animated */);
     69         inAnimation(mNotificationPanel.animate())
     70                 .withLayer()
     71                 .withEndAction(new Runnable() {
     72                     @Override
     73                     public void run() {
     74                         mBrightnessMirror.setVisibility(View.INVISIBLE);
     75                         mStackScroller.setFadingOut(false);
     76                     }
     77                 });
     78     }
     79 
     80     private ViewPropertyAnimator outAnimation(ViewPropertyAnimator a) {
     81         return a.alpha(0.0f)
     82                 .setDuration(TRANSITION_DURATION_OUT)
     83                 .setInterpolator(Interpolators.ALPHA_OUT)
     84                 .withEndAction(null);
     85     }
     86     private ViewPropertyAnimator inAnimation(ViewPropertyAnimator a) {
     87         return a.alpha(1.0f)
     88                 .setDuration(TRANSITION_DURATION_IN)
     89                 .setInterpolator(Interpolators.ALPHA_IN);
     90     }
     91 
     92     public void setLocation(View original) {
     93         original.getLocationInWindow(mInt2Cache);
     94 
     95         // Original is slightly larger than the mirror, so make sure to use the center for the
     96         // positioning.
     97         int originalX = mInt2Cache[0] + original.getWidth() / 2;
     98         int originalY = mInt2Cache[1] + original.getHeight() / 2;
     99         mBrightnessMirror.setTranslationX(0);
    100         mBrightnessMirror.setTranslationY(0);
    101         mBrightnessMirror.getLocationInWindow(mInt2Cache);
    102         int mirrorX = mInt2Cache[0] + mBrightnessMirror.getWidth() / 2;
    103         int mirrorY = mInt2Cache[1] + mBrightnessMirror.getHeight() / 2;
    104         mBrightnessMirror.setTranslationX(originalX - mirrorX);
    105         mBrightnessMirror.setTranslationY(originalY - mirrorY);
    106     }
    107 
    108     public View getMirror() {
    109         return mBrightnessMirror;
    110     }
    111 
    112     public void updateResources() {
    113         FrameLayout.LayoutParams lp =
    114                 (FrameLayout.LayoutParams) mBrightnessMirror.getLayoutParams();
    115         lp.width = mBrightnessMirror.getResources().getDimensionPixelSize(
    116                 R.dimen.qs_panel_width);
    117         lp.gravity = mBrightnessMirror.getResources().getInteger(
    118                 R.integer.notification_panel_layout_gravity);
    119         mBrightnessMirror.setLayoutParams(lp);
    120     }
    121 
    122     public void onOverlayChanged() {
    123         reinflate();
    124     }
    125 
    126     public void onDensityOrFontScaleChanged() {
    127         reinflate();
    128     }
    129 
    130     private void reinflate() {
    131         int index = mStatusBarWindow.indexOfChild(mBrightnessMirror);
    132         mStatusBarWindow.removeView(mBrightnessMirror);
    133         mBrightnessMirror = LayoutInflater.from(mBrightnessMirror.getContext()).inflate(
    134                 R.layout.brightness_mirror, mStatusBarWindow, false);
    135         mStatusBarWindow.addView(mBrightnessMirror, index);
    136 
    137         for (int i = 0; i < mBrightnessMirrorListeners.size(); i++) {
    138             mBrightnessMirrorListeners.valueAt(i).onBrightnessMirrorReinflated(mBrightnessMirror);
    139         }
    140     }
    141 
    142     @Override
    143     public void addCallback(BrightnessMirrorListener listener) {
    144         Preconditions.checkNotNull(listener);
    145         mBrightnessMirrorListeners.add(listener);
    146     }
    147 
    148     @Override
    149     public void removeCallback(BrightnessMirrorListener listener) {
    150         mBrightnessMirrorListeners.remove(listener);
    151     }
    152 
    153     public interface BrightnessMirrorListener {
    154         void onBrightnessMirrorReinflated(View brightnessMirror);
    155     }
    156 }
    157