1 /* 2 * Copyright (C) 2021 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 package com.android.systemui.battery; 17 18 import static android.provider.Settings.System.SHOW_BATTERY_PERCENT; 19 20 import android.content.ContentResolver; 21 import android.content.Context; 22 import android.database.ContentObserver; 23 import android.net.Uri; 24 import android.os.Handler; 25 import android.os.HandlerExecutor; 26 import android.provider.Settings; 27 import android.text.TextUtils; 28 import android.util.ArraySet; 29 import android.view.View; 30 31 import androidx.annotation.NonNull; 32 33 import com.android.systemui.dagger.qualifiers.Main; 34 import com.android.systemui.flags.FeatureFlags; 35 import com.android.systemui.flags.Flags; 36 import com.android.systemui.settings.UserTracker; 37 import com.android.systemui.statusbar.phone.StatusBarIconController; 38 import com.android.systemui.statusbar.policy.BatteryController; 39 import com.android.systemui.statusbar.policy.ConfigurationController; 40 import com.android.systemui.tuner.TunerService; 41 import com.android.systemui.util.ViewController; 42 43 import javax.inject.Inject; 44 45 /** Controller for {@link BatteryMeterView}. **/ 46 public class BatteryMeterViewController extends ViewController<BatteryMeterView> { 47 private final ConfigurationController mConfigurationController; 48 private final TunerService mTunerService; 49 private final Handler mMainHandler; 50 private final ContentResolver mContentResolver; 51 private final BatteryController mBatteryController; 52 53 private final String mSlotBattery; 54 private final SettingObserver mSettingObserver; 55 private final UserTracker mUserTracker; 56 57 private final ConfigurationController.ConfigurationListener mConfigurationListener = 58 new ConfigurationController.ConfigurationListener() { 59 @Override 60 public void onDensityOrFontScaleChanged() { 61 mView.scaleBatteryMeterViews(); 62 } 63 }; 64 65 private final TunerService.Tunable mTunable = new TunerService.Tunable() { 66 @Override 67 public void onTuningChanged(String key, String newValue) { 68 if (StatusBarIconController.ICON_HIDE_LIST.equals(key)) { 69 ArraySet<String> icons = StatusBarIconController.getIconHideList( 70 getContext(), newValue); 71 mView.setVisibility(icons.contains(mSlotBattery) ? View.GONE : View.VISIBLE); 72 } 73 } 74 }; 75 76 private final BatteryController.BatteryStateChangeCallback mBatteryStateChangeCallback = 77 new BatteryController.BatteryStateChangeCallback() { 78 @Override 79 public void onBatteryLevelChanged(int level, boolean pluggedIn, boolean charging) { 80 mView.onBatteryLevelChanged(level, pluggedIn); 81 } 82 83 @Override 84 public void onPowerSaveChanged(boolean isPowerSave) { 85 mView.onPowerSaveChanged(isPowerSave); 86 } 87 88 @Override 89 public void onBatteryUnknownStateChanged(boolean isUnknown) { 90 mView.onBatteryUnknownStateChanged(isUnknown); 91 } 92 93 @Override 94 public void onIsOverheatedChanged(boolean isOverheated) { 95 mView.onIsOverheatedChanged(isOverheated); 96 } 97 }; 98 99 private final UserTracker.Callback mUserChangedCallback = 100 new UserTracker.Callback() { 101 @Override 102 public void onUserChanged(int newUser, @NonNull Context userContext) { 103 mContentResolver.unregisterContentObserver(mSettingObserver); 104 registerShowBatteryPercentObserver(newUser); 105 mView.updateShowPercent(); 106 } 107 }; 108 109 // Some places may need to show the battery conditionally, and not obey the tuner 110 private boolean mIgnoreTunerUpdates; 111 private boolean mIsSubscribedForTunerUpdates; 112 113 @Inject BatteryMeterViewController( BatteryMeterView view, UserTracker userTracker, ConfigurationController configurationController, TunerService tunerService, @Main Handler mainHandler, ContentResolver contentResolver, FeatureFlags featureFlags, BatteryController batteryController)114 public BatteryMeterViewController( 115 BatteryMeterView view, 116 UserTracker userTracker, 117 ConfigurationController configurationController, 118 TunerService tunerService, 119 @Main Handler mainHandler, 120 ContentResolver contentResolver, 121 FeatureFlags featureFlags, 122 BatteryController batteryController) { 123 super(view); 124 mUserTracker = userTracker; 125 mConfigurationController = configurationController; 126 mTunerService = tunerService; 127 mMainHandler = mainHandler; 128 mContentResolver = contentResolver; 129 mBatteryController = batteryController; 130 131 mView.setBatteryEstimateFetcher(mBatteryController::getEstimatedTimeRemainingString); 132 mView.setDisplayShieldEnabled(featureFlags.isEnabled(Flags.BATTERY_SHIELD_ICON)); 133 134 mSlotBattery = getResources().getString(com.android.internal.R.string.status_bar_battery); 135 mSettingObserver = new SettingObserver(mMainHandler); 136 } 137 138 @Override onViewAttached()139 protected void onViewAttached() { 140 mConfigurationController.addCallback(mConfigurationListener); 141 subscribeForTunerUpdates(); 142 mBatteryController.addCallback(mBatteryStateChangeCallback); 143 144 registerShowBatteryPercentObserver(mUserTracker.getUserId()); 145 registerGlobalBatteryUpdateObserver(); 146 mUserTracker.addCallback(mUserChangedCallback, new HandlerExecutor(mMainHandler)); 147 148 mView.updateShowPercent(); 149 } 150 151 @Override onViewDetached()152 protected void onViewDetached() { 153 mConfigurationController.removeCallback(mConfigurationListener); 154 unsubscribeFromTunerUpdates(); 155 mBatteryController.removeCallback(mBatteryStateChangeCallback); 156 157 mUserTracker.removeCallback(mUserChangedCallback); 158 mContentResolver.unregisterContentObserver(mSettingObserver); 159 } 160 161 /** 162 * Turn off {@link BatteryMeterView}'s subscribing to the tuner for updates, and thus avoid it 163 * controlling its own visibility. 164 */ ignoreTunerUpdates()165 public void ignoreTunerUpdates() { 166 mIgnoreTunerUpdates = true; 167 unsubscribeFromTunerUpdates(); 168 } 169 subscribeForTunerUpdates()170 private void subscribeForTunerUpdates() { 171 if (mIsSubscribedForTunerUpdates || mIgnoreTunerUpdates) { 172 return; 173 } 174 175 mTunerService.addTunable(mTunable, StatusBarIconController.ICON_HIDE_LIST); 176 mIsSubscribedForTunerUpdates = true; 177 } 178 unsubscribeFromTunerUpdates()179 private void unsubscribeFromTunerUpdates() { 180 if (!mIsSubscribedForTunerUpdates) { 181 return; 182 } 183 184 mTunerService.removeTunable(mTunable); 185 mIsSubscribedForTunerUpdates = false; 186 } 187 registerShowBatteryPercentObserver(int user)188 private void registerShowBatteryPercentObserver(int user) { 189 mContentResolver.registerContentObserver( 190 Settings.System.getUriFor(SHOW_BATTERY_PERCENT), 191 false, 192 mSettingObserver, 193 user); 194 } 195 registerGlobalBatteryUpdateObserver()196 private void registerGlobalBatteryUpdateObserver() { 197 mContentResolver.registerContentObserver( 198 Settings.Global.getUriFor(Settings.Global.BATTERY_ESTIMATES_LAST_UPDATE_TIME), 199 false, 200 mSettingObserver); 201 } 202 203 private final class SettingObserver extends ContentObserver { SettingObserver(Handler handler)204 public SettingObserver(Handler handler) { 205 super(handler); 206 } 207 208 @Override onChange(boolean selfChange, Uri uri)209 public void onChange(boolean selfChange, Uri uri) { 210 super.onChange(selfChange, uri); 211 mView.updateShowPercent(); 212 if (TextUtils.equals(uri.getLastPathSegment(), 213 Settings.Global.BATTERY_ESTIMATES_LAST_UPDATE_TIME)) { 214 // update the text for sure if the estimate in the cache was updated 215 mView.updatePercentText(); 216 } 217 } 218 } 219 } 220