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      1 /*
      2  * Copyright (C) 2017 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.settings.display;
     18 
     19 import android.os.PowerManager;
     20 
     21 /**
     22  * This class replicates a subset of the android.os.PowerManager. The class exists so that we can
     23  * use a thin wrapper around the PowerManager in production code and a mock in tests. We cannot
     24  * directly mock or shadow the PowerManager, because some of the methods we rely on are newer than
     25  * the API version supported by Robolectric or are hidden.
     26  */
     27 public class PowerManagerWrapper {
     28     private final PowerManager mPowerManager;
     29 
     30     public PowerManagerWrapper(PowerManager powerManager) {
     31         mPowerManager = powerManager;
     32     }
     33 
     34     public int getMinimumScreenBrightnessSetting() {
     35         return mPowerManager.getMinimumScreenBrightnessSetting();
     36     }
     37 
     38     public int getMaximumScreenBrightnessSetting() {
     39         return mPowerManager.getMaximumScreenBrightnessSetting();
     40     }
     41 
     42     public int getMinimumScreenBrightnessForVrSetting() {
     43         return mPowerManager.getMinimumScreenBrightnessForVrSetting();
     44     }
     45 
     46     public int getMaximumScreenBrightnessForVrSetting() {
     47         return mPowerManager.getMaximumScreenBrightnessForVrSetting();
     48     }
     49 }
     50