1 /* 2 * Copyright (C) 2018 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.car.settings.display; 18 19 import android.car.drivingstate.CarUxRestrictions; 20 import android.content.Context; 21 import android.provider.Settings; 22 23 import androidx.preference.TwoStatePreference; 24 25 import com.android.car.settings.R; 26 import com.android.car.settings.common.FragmentController; 27 import com.android.car.settings.common.PreferenceController; 28 29 /** Business logic for controlling the adaptive brightness setting. */ 30 public class AdaptiveBrightnessTogglePreferenceController extends 31 PreferenceController<TwoStatePreference> { 32 AdaptiveBrightnessTogglePreferenceController(Context context, String preferenceKey, FragmentController fragmentController, CarUxRestrictions uxRestrictions)33 public AdaptiveBrightnessTogglePreferenceController(Context context, String preferenceKey, 34 FragmentController fragmentController, CarUxRestrictions uxRestrictions) { 35 super(context, preferenceKey, fragmentController, uxRestrictions); 36 } 37 38 @Override getPreferenceType()39 protected Class<TwoStatePreference> getPreferenceType() { 40 return TwoStatePreference.class; 41 } 42 43 @Override updateState(TwoStatePreference preference)44 protected void updateState(TwoStatePreference preference) { 45 preference.setChecked(isAdaptiveBrightnessChecked()); 46 } 47 48 @Override getAvailabilityStatus()49 public int getAvailabilityStatus() { 50 return supportsAdaptiveBrightness() ? AVAILABLE : UNSUPPORTED_ON_DEVICE; 51 } 52 53 @Override handlePreferenceChanged(TwoStatePreference preference, Object newValue)54 protected boolean handlePreferenceChanged(TwoStatePreference preference, Object newValue) { 55 boolean enableAdaptiveBrightness = (boolean) newValue; 56 Settings.System.putInt(getContext().getContentResolver(), 57 Settings.System.SCREEN_BRIGHTNESS_MODE, 58 enableAdaptiveBrightness ? Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC 59 : Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL); 60 return true; 61 } 62 isAdaptiveBrightnessChecked()63 private boolean isAdaptiveBrightnessChecked() { 64 int brightnessMode = Settings.System.getInt(getContext().getContentResolver(), 65 Settings.System.SCREEN_BRIGHTNESS_MODE, 66 Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL); 67 return brightnessMode != Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL; 68 } 69 supportsAdaptiveBrightness()70 private boolean supportsAdaptiveBrightness() { 71 return getContext().getResources().getBoolean(R.bool.config_automatic_brightness_available); 72 } 73 } 74