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 invalid state.
31  */
32 public class InvalidBrightnessStrategy implements DisplayBrightnessStrategy {
33     @Override
updateBrightness( StrategyExecutionRequest strategyExecutionRequest)34     public DisplayBrightnessState updateBrightness(
35             StrategyExecutionRequest strategyExecutionRequest) {
36         return BrightnessUtils.constructDisplayBrightnessState(BrightnessReason.REASON_UNKNOWN,
37                 PowerManager.BRIGHTNESS_INVALID_FLOAT, PowerManager.BRIGHTNESS_INVALID_FLOAT,
38                 getName());
39     }
40 
41     @Override
getName()42     public String getName() {
43         return DisplayBrightnessStrategyConstants.INVALID_BRIGHTNESS_STRATEGY_NAME;
44     }
45 
46     @Override
dump(PrintWriter writer)47     public void dump(PrintWriter writer) {}
48 
49     @Override
strategySelectionPostProcessor( StrategySelectionNotifyRequest strategySelectionNotifyRequest)50     public void strategySelectionPostProcessor(
51             StrategySelectionNotifyRequest strategySelectionNotifyRequest) {
52         // DO NOTHING
53     }
54 
55     @Override
getReason()56     public int getReason() {
57         return BrightnessReason.REASON_UNKNOWN;
58     }
59 }
60