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.settings.fuelgauge.batterysaver; 18 19 import android.content.ContentResolver; 20 import android.content.Context; 21 import android.net.Uri; 22 import android.os.Handler; 23 import android.os.Looper; 24 import android.os.PowerManager; 25 import android.provider.Settings; 26 import android.provider.SettingsSlicesContract; 27 import android.widget.Switch; 28 29 import androidx.preference.PreferenceScreen; 30 31 import com.android.settings.R; 32 import com.android.settings.core.TogglePreferenceController; 33 import com.android.settings.fuelgauge.BatterySaverReceiver; 34 import com.android.settingslib.core.lifecycle.LifecycleObserver; 35 import com.android.settingslib.core.lifecycle.events.OnStart; 36 import com.android.settingslib.core.lifecycle.events.OnStop; 37 import com.android.settingslib.fuelgauge.BatterySaverUtils; 38 import com.android.settingslib.widget.MainSwitchPreference; 39 import com.android.settingslib.widget.OnMainSwitchChangeListener; 40 41 42 /** 43 * Controller to update the battery saver button 44 */ 45 public class BatterySaverButtonPreferenceController extends 46 TogglePreferenceController implements OnMainSwitchChangeListener, LifecycleObserver, 47 OnStart, OnStop, BatterySaverReceiver.BatterySaverListener { 48 private static final long SWITCH_ANIMATION_DURATION = 350L; 49 50 private final BatterySaverReceiver mBatterySaverReceiver; 51 private final PowerManager mPowerManager; 52 53 private Handler mHandler; 54 private MainSwitchPreference mPreference; 55 BatterySaverButtonPreferenceController(Context context, String key)56 public BatterySaverButtonPreferenceController(Context context, String key) { 57 super(context, key); 58 mPowerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 59 mBatterySaverReceiver = new BatterySaverReceiver(context); 60 mBatterySaverReceiver.setBatterySaverListener(this); 61 mHandler = new Handler(Looper.getMainLooper()); 62 } 63 64 @Override getAvailabilityStatus()65 public int getAvailabilityStatus() { 66 return AVAILABLE; 67 } 68 69 @Override isPublicSlice()70 public boolean isPublicSlice() { 71 return true; 72 } 73 74 @Override getSliceUri()75 public Uri getSliceUri() { 76 return new Uri.Builder() 77 .scheme(ContentResolver.SCHEME_CONTENT) 78 .authority(SettingsSlicesContract.AUTHORITY) 79 .appendPath(SettingsSlicesContract.PATH_SETTING_ACTION) 80 .appendPath(SettingsSlicesContract.KEY_BATTERY_SAVER) 81 .build(); 82 } 83 84 @Override onStart()85 public void onStart() { 86 mBatterySaverReceiver.setListening(true); 87 } 88 89 @Override onStop()90 public void onStop() { 91 mBatterySaverReceiver.setListening(false); 92 mHandler.removeCallbacksAndMessages(null /* token */); 93 } 94 95 @Override displayPreference(PreferenceScreen screen)96 public void displayPreference(PreferenceScreen screen) { 97 super.displayPreference(screen); 98 mPreference = screen.findPreference(getPreferenceKey()); 99 mPreference.addOnSwitchChangeListener(this); 100 mPreference.updateStatus(isChecked()); 101 } 102 103 @Override onSwitchChanged(Switch switchView, boolean isChecked)104 public void onSwitchChanged(Switch switchView, boolean isChecked) { 105 // Cancel preference's check state once it's first time launch 106 if (isChecked && (Settings.Secure.getInt(mContext.getContentResolver(), 107 Settings.Secure.LOW_POWER_WARNING_ACKNOWLEDGED, 0) == 0)) { 108 mPreference.setChecked(false); 109 } 110 setChecked(isChecked); 111 } 112 113 @Override isChecked()114 public boolean isChecked() { 115 return mPowerManager.isPowerSaveMode(); 116 } 117 118 @Override setChecked(boolean stateOn)119 public boolean setChecked(boolean stateOn) { 120 return BatterySaverUtils.setPowerSaveMode(mContext, stateOn, 121 true /* needFirstTimeWarning */); 122 } 123 124 @Override getSliceHighlightMenuRes()125 public int getSliceHighlightMenuRes() { 126 return R.string.menu_key_battery; 127 } 128 129 @Override onPowerSaveModeChanged()130 public void onPowerSaveModeChanged() { 131 mHandler.postDelayed(() -> onPowerSaveModeChangedInternal(), 132 SWITCH_ANIMATION_DURATION); 133 } 134 onPowerSaveModeChangedInternal()135 private void onPowerSaveModeChangedInternal() { 136 final boolean isChecked = isChecked(); 137 if (mPreference != null && mPreference.isChecked() != isChecked) { 138 mPreference.setChecked(isChecked); 139 } 140 } 141 142 @Override onBatteryChanged(boolean pluggedIn)143 public void onBatteryChanged(boolean pluggedIn) { 144 if (mPreference != null) { 145 mPreference.setEnabled(!pluggedIn); 146 } 147 } 148 } 149