1 /* 2 * Copyright (C) 2022 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.server.display.brightness.strategy; 18 19 import android.os.PowerManager; 20 21 import com.android.server.display.DisplayBrightnessState; 22 import com.android.server.display.brightness.BrightnessReason; 23 import com.android.server.display.brightness.BrightnessUtils; 24 import com.android.server.display.brightness.StrategyExecutionRequest; 25 import com.android.server.display.brightness.StrategySelectionNotifyRequest; 26 27 import java.io.PrintWriter; 28 29 /** 30 * Manages the brightness of the display when the system is in the ScreenOff state. 31 */ 32 public class ScreenOffBrightnessStrategy implements DisplayBrightnessStrategy { 33 @Override updateBrightness( StrategyExecutionRequest strategyExecutionRequest)34 public DisplayBrightnessState updateBrightness( 35 StrategyExecutionRequest strategyExecutionRequest) { 36 // Todo(b/241308599): Introduce a validator class and add validations before setting 37 // the brightness 38 return BrightnessUtils.constructDisplayBrightnessState(BrightnessReason.REASON_SCREEN_OFF, 39 PowerManager.BRIGHTNESS_OFF_FLOAT, getName()); 40 } 41 42 @Override getName()43 public String getName() { 44 return "ScreenOffBrightnessStrategy"; 45 } 46 47 @Override dump(PrintWriter writer)48 public void dump(PrintWriter writer) {} 49 50 @Override strategySelectionPostProcessor( StrategySelectionNotifyRequest strategySelectionNotifyRequest)51 public void strategySelectionPostProcessor( 52 StrategySelectionNotifyRequest strategySelectionNotifyRequest) { 53 // DO NOTHING 54 } 55 56 @Override getReason()57 public int getReason() { 58 return BrightnessReason.REASON_SCREEN_OFF; 59 } 60 } 61