| /* |
| * Copyright (C) 2018 The Android Open Source Project |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.settings.fuelgauge.batterysaver; |
| |
| import android.content.ContentResolver; |
| import android.content.Context; |
| import android.database.ContentObserver; |
| import android.net.Uri; |
| import android.os.Handler; |
| import android.os.Looper; |
| import android.provider.Settings; |
| import androidx.annotation.VisibleForTesting; |
| import androidx.preference.Preference; |
| import androidx.preference.PreferenceScreen; |
| import android.util.Log; |
| import android.view.accessibility.AccessibilityNodeInfo; |
| |
| import com.android.settings.R; |
| import com.android.settings.Utils; |
| import com.android.settings.core.BasePreferenceController; |
| import com.android.settings.widget.SeekBarPreference; |
| import com.android.settingslib.core.lifecycle.Lifecycle; |
| import com.android.settingslib.core.lifecycle.LifecycleObserver; |
| import com.android.settingslib.core.lifecycle.events.OnStart; |
| import com.android.settingslib.core.lifecycle.events.OnStop; |
| |
| /** |
| * Controller that update the battery saver seekbar |
| */ |
| public class AutoBatterySeekBarPreferenceController extends BasePreferenceController implements |
| LifecycleObserver, OnStart, OnStop, SeekBarPreference.OnPreferenceChangeListener { |
| private static final String TAG = "AutoBatterySeekBarPreferenceController"; |
| @VisibleForTesting |
| static final String KEY_AUTO_BATTERY_SEEK_BAR = "battery_saver_seek_bar"; |
| private SeekBarPreference mPreference; |
| private AutoBatterySaverSettingObserver mContentObserver; |
| |
| public AutoBatterySeekBarPreferenceController(Context context, Lifecycle lifecycle) { |
| super(context, KEY_AUTO_BATTERY_SEEK_BAR); |
| mContentObserver = new AutoBatterySaverSettingObserver(new Handler(Looper.getMainLooper())); |
| if (lifecycle != null) { |
| lifecycle.addObserver(this); |
| } |
| } |
| |
| @Override |
| public void displayPreference(PreferenceScreen screen) { |
| super.displayPreference(screen); |
| mPreference = (SeekBarPreference) screen.findPreference( |
| KEY_AUTO_BATTERY_SEEK_BAR); |
| mPreference.setContinuousUpdates(true); |
| mPreference.setAccessibilityRangeInfoType( |
| AccessibilityNodeInfo.RangeInfo.RANGE_TYPE_PERCENT); |
| updatePreference(mPreference); |
| } |
| |
| @Override |
| public int getAvailabilityStatus() { |
| return AVAILABLE; |
| } |
| |
| @Override |
| public void updateState(Preference preference) { |
| super.updateState(preference); |
| updatePreference(preference); |
| } |
| |
| @Override |
| public void onStart() { |
| mContentObserver.registerContentObserver(); |
| } |
| |
| @Override |
| public void onStop() { |
| mContentObserver.unRegisterContentObserver(); |
| } |
| |
| @Override |
| public boolean onPreferenceChange(Preference preference, Object newValue) { |
| final int progress = (int) newValue; |
| Settings.Global.putInt(mContext.getContentResolver(), |
| Settings.Global.LOW_POWER_MODE_TRIGGER_LEVEL, progress); |
| return true; |
| } |
| |
| @VisibleForTesting |
| void updatePreference(Preference preference) { |
| final ContentResolver contentResolver = mContext.getContentResolver(); |
| |
| // Override the max value with LOW_POWER_MODE_TRIGGER_LEVEL_MAX, if set. |
| final int maxLevel = Settings.Global.getInt(contentResolver, |
| Settings.Global.LOW_POWER_MODE_TRIGGER_LEVEL_MAX, 0); |
| if (maxLevel > 0) { |
| if (!(preference instanceof SeekBarPreference)) { |
| Log.e(TAG, "Unexpected preference class: " + preference.getClass()); |
| } else { |
| final SeekBarPreference seekBarPreference = (SeekBarPreference) preference; |
| if (maxLevel < seekBarPreference.getMin()) { |
| Log.e(TAG, "LOW_POWER_MODE_TRIGGER_LEVEL_MAX too low; ignored."); |
| } else { |
| seekBarPreference.setMax(maxLevel); |
| } |
| } |
| } |
| |
| // Set the current value. |
| final int level = Settings.Global.getInt(contentResolver, |
| Settings.Global.LOW_POWER_MODE_TRIGGER_LEVEL, |
| AutoBatterySaverPreferenceController.DEFAULT_TRIGGER_LEVEL); |
| if (level == 0) { |
| preference.setVisible(false); |
| } else { |
| preference.setVisible(true); |
| preference.setTitle(mContext.getString(R.string.battery_saver_seekbar_title, |
| Utils.formatPercentage(level))); |
| SeekBarPreference seekBarPreference = (SeekBarPreference) preference; |
| seekBarPreference.setProgress(level); |
| seekBarPreference.setSeekBarContentDescription( |
| mContext.getString(R.string.battery_saver_turn_on_automatically_title)); |
| } |
| } |
| |
| /** |
| * Observer that listens to change from {@link Settings.Global#LOW_POWER_MODE_TRIGGER_LEVEL} |
| */ |
| private final class AutoBatterySaverSettingObserver extends ContentObserver { |
| private final Uri mUri = Settings.Global.getUriFor( |
| Settings.Global.LOW_POWER_MODE_TRIGGER_LEVEL); |
| private final ContentResolver mContentResolver; |
| |
| public AutoBatterySaverSettingObserver(Handler handler) { |
| super(handler); |
| mContentResolver = mContext.getContentResolver(); |
| } |
| |
| public void registerContentObserver() { |
| mContentResolver.registerContentObserver(mUri, false, this); |
| } |
| |
| public void unRegisterContentObserver() { |
| mContentResolver.unregisterContentObserver(this); |
| } |
| |
| @Override |
| public void onChange(boolean selfChange, Uri uri, int userId) { |
| if (mUri.equals(uri)) { |
| updatePreference(mPreference); |
| } |
| } |
| } |
| } |