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      1 /*
      2  * Copyright (C) 2016 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.phone;
     18 
     19 import android.graphics.Rect;
     20 import android.view.View;
     21 
     22 import com.android.systemui.statusbar.policy.BatteryController;
     23 
     24 import static com.android.systemui.statusbar.phone.BarTransitions.MODE_LIGHTS_OUT_TRANSPARENT;
     25 import static com.android.systemui.statusbar.phone.BarTransitions.MODE_TRANSPARENT;
     26 
     27 /**
     28  * Controls how light status bar flag applies to the icons.
     29  */
     30 public class LightStatusBarController implements BatteryController.BatteryStateChangeCallback {
     31 
     32     private final StatusBarIconController mIconController;
     33     private final BatteryController mBatteryController;
     34     private FingerprintUnlockController mFingerprintUnlockController;
     35 
     36     private int mFullscreenStackVisibility;
     37     private int mDockedStackVisibility;
     38     private boolean mFullscreenLight;
     39     private boolean mDockedLight;
     40     private int mLastStatusBarMode;
     41 
     42     private final Rect mLastFullscreenBounds = new Rect();
     43     private final Rect mLastDockedBounds = new Rect();
     44 
     45     public LightStatusBarController(StatusBarIconController iconController,
     46             BatteryController batteryController) {
     47         mIconController = iconController;
     48         mBatteryController = batteryController;
     49         batteryController.addStateChangedCallback(this);
     50     }
     51 
     52     public void setFingerprintUnlockController(
     53             FingerprintUnlockController fingerprintUnlockController) {
     54         mFingerprintUnlockController = fingerprintUnlockController;
     55     }
     56 
     57     public void onSystemUiVisibilityChanged(int fullscreenStackVis, int dockedStackVis, int mask,
     58             Rect fullscreenStackBounds, Rect dockedStackBounds, boolean sbModeChanged,
     59             int statusBarMode) {
     60         int oldFullscreen = mFullscreenStackVisibility;
     61         int newFullscreen = (oldFullscreen & ~mask) | (fullscreenStackVis & mask);
     62         int diffFullscreen = newFullscreen ^ oldFullscreen;
     63         int oldDocked = mDockedStackVisibility;
     64         int newDocked = (oldDocked & ~mask) | (dockedStackVis & mask);
     65         int diffDocked = newDocked ^ oldDocked;
     66         if ((diffFullscreen & View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR) != 0
     67                 || (diffDocked & View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR) != 0
     68                 || sbModeChanged
     69                 || !mLastFullscreenBounds.equals(fullscreenStackBounds)
     70                 || !mLastDockedBounds.equals(dockedStackBounds)) {
     71 
     72             mFullscreenLight = isLight(newFullscreen, statusBarMode);
     73             mDockedLight = isLight(newDocked, statusBarMode);
     74             update(fullscreenStackBounds, dockedStackBounds);
     75         }
     76         mFullscreenStackVisibility = newFullscreen;
     77         mDockedStackVisibility = newDocked;
     78         mLastStatusBarMode = statusBarMode;
     79         mLastFullscreenBounds.set(fullscreenStackBounds);
     80         mLastDockedBounds.set(dockedStackBounds);
     81     }
     82 
     83     private boolean isLight(int vis, int statusBarMode) {
     84         boolean isTransparentBar = (statusBarMode == MODE_TRANSPARENT
     85                 || statusBarMode == MODE_LIGHTS_OUT_TRANSPARENT);
     86         boolean allowLight = isTransparentBar && !mBatteryController.isPowerSave();
     87         boolean light = (vis & View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR) != 0;
     88         return allowLight && light;
     89     }
     90 
     91     private boolean animateChange() {
     92         if (mFingerprintUnlockController == null) {
     93             return false;
     94         }
     95         int unlockMode = mFingerprintUnlockController.getMode();
     96         return unlockMode != FingerprintUnlockController.MODE_WAKE_AND_UNLOCK_PULSING
     97                 && unlockMode != FingerprintUnlockController.MODE_WAKE_AND_UNLOCK;
     98     }
     99 
    100     private void update(Rect fullscreenStackBounds, Rect dockedStackBounds) {
    101         boolean hasDockedStack = !dockedStackBounds.isEmpty();
    102 
    103         // If both are light or fullscreen is light and there is no docked stack, all icons get
    104         // dark.
    105         if ((mFullscreenLight && mDockedLight) || (mFullscreenLight && !hasDockedStack)) {
    106             mIconController.setIconsDarkArea(null);
    107             mIconController.setIconsDark(true, animateChange());
    108 
    109         }
    110 
    111         // If no one is light or the fullscreen is not light and there is no docked stack,
    112         // all icons become white.
    113         else if ((!mFullscreenLight && !mDockedLight) || (!mFullscreenLight && !hasDockedStack)) {
    114             mIconController.setIconsDark(false, animateChange());
    115 
    116         }
    117 
    118         // Not the same for every stack, magic!
    119         else {
    120             Rect bounds = mFullscreenLight ? fullscreenStackBounds : dockedStackBounds;
    121             if (bounds.isEmpty()) {
    122                 mIconController.setIconsDarkArea(null);
    123             } else {
    124                 mIconController.setIconsDarkArea(bounds);
    125             }
    126             mIconController.setIconsDark(true, animateChange());
    127         }
    128     }
    129 
    130     @Override
    131     public void onBatteryLevelChanged(int level, boolean pluggedIn, boolean charging) {
    132 
    133     }
    134 
    135     @Override
    136     public void onPowerSaveChanged(boolean isPowerSave) {
    137         onSystemUiVisibilityChanged(mFullscreenStackVisibility, mDockedStackVisibility,
    138                 0 /* mask */, mLastFullscreenBounds, mLastDockedBounds, true /* sbModeChange*/,
    139                 mLastStatusBarMode);
    140     }
    141 }
    142