1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 package com.android.settings.fuelgauge.batterysaver; 17 18 import android.content.Context; 19 import android.provider.Settings; 20 import android.support.annotation.VisibleForTesting; 21 import android.support.v7.preference.Preference; 22 23 import com.android.settings.core.TogglePreferenceController; 24 import com.android.settingslib.fuelgauge.BatterySaverUtils; 25 26 /** 27 * Controller that update whether to turn on battery saver automatically 28 */ 29 public class AutoBatterySaverPreferenceController extends TogglePreferenceController implements 30 Preference.OnPreferenceChangeListener { 31 32 /** 33 * Default value for {@link Settings.Global#LOW_POWER_MODE_TRIGGER_LEVEL}. 34 */ 35 static final int DEFAULT_TRIGGER_LEVEL = 0; 36 37 /** 38 * The default value to set to {@link Settings.Global#LOW_POWER_MODE_TRIGGER_LEVEL} when the 39 * user enables battery saver. 40 */ 41 private final int mDefaultTriggerLevelForOn; 42 43 @VisibleForTesting 44 static final String KEY_AUTO_BATTERY_SAVER = "auto_battery_saver"; 45 AutoBatterySaverPreferenceController(Context context)46 public AutoBatterySaverPreferenceController(Context context) { 47 super(context, KEY_AUTO_BATTERY_SAVER); 48 mDefaultTriggerLevelForOn = mContext.getResources().getInteger( 49 com.android.internal.R.integer.config_lowBatteryWarningLevel); 50 } 51 52 @Override getAvailabilityStatus()53 public int getAvailabilityStatus() { 54 return AVAILABLE; 55 } 56 57 @Override isChecked()58 public boolean isChecked() { 59 return Settings.Global.getInt(mContext.getContentResolver(), 60 Settings.Global.LOW_POWER_MODE_TRIGGER_LEVEL, DEFAULT_TRIGGER_LEVEL) != 0; 61 } 62 63 @Override setChecked(boolean isChecked)64 public boolean setChecked(boolean isChecked) { 65 BatterySaverUtils.setAutoBatterySaverTriggerLevel(mContext, 66 isChecked ? mDefaultTriggerLevelForOn : 0); 67 return true; 68 } 69 } 70