113 lines
3.5 KiB
Java
113 lines
3.5 KiB
Java
/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings.fuelgauge.batterysaver;
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import android.content.Context;
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import android.os.PowerManager;
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import androidx.preference.Preference;
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import androidx.preference.PreferenceScreen;
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import com.android.settings.core.TogglePreferenceController;
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import com.android.settings.fuelgauge.BatterySaverReceiver;
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import com.android.settings.widget.TwoStateButtonPreference;
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import com.android.settingslib.core.lifecycle.LifecycleObserver;
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import com.android.settingslib.core.lifecycle.events.OnStart;
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import com.android.settingslib.core.lifecycle.events.OnStop;
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import com.android.settingslib.fuelgauge.BatterySaverUtils;
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/**
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* Controller to update the battery saver button
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*/
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public class BatterySaverButtonPreferenceController extends
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TogglePreferenceController implements
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LifecycleObserver, OnStart, OnStop, BatterySaverReceiver.BatterySaverListener {
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private final BatterySaverReceiver mBatterySaverReceiver;
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private final PowerManager mPowerManager;
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private TwoStateButtonPreference mPreference;
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public BatterySaverButtonPreferenceController(Context context, String key) {
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super(context, key);
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mPowerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
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mBatterySaverReceiver = new BatterySaverReceiver(context);
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mBatterySaverReceiver.setBatterySaverListener(this);
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}
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@Override
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public int getAvailabilityStatus() {
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return AVAILABLE;
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}
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@Override
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public boolean isSliceable() {
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return true;
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}
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@Override
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public void onStart() {
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mBatterySaverReceiver.setListening(true);
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}
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@Override
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public void onStop() {
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mBatterySaverReceiver.setListening(false);
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}
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@Override
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public void displayPreference(PreferenceScreen screen) {
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super.displayPreference(screen);
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mPreference = screen.findPreference(getPreferenceKey());
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}
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@Override
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public boolean isChecked() {
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return mPowerManager.isPowerSaveMode();
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}
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@Override
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public boolean setChecked(boolean stateOn) {
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// This screen already shows a warning, so we don't need another warning.
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return BatterySaverUtils.setPowerSaveMode(mContext, stateOn,
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false /* needFirstTimeWarning */);
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}
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@Override
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public void updateState(Preference preference) {
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super.updateState(preference);
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if (mPreference != null) {
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mPreference.setChecked(isChecked());
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}
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}
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@Override
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public void onPowerSaveModeChanged() {
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final boolean isChecked = isChecked();
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if (mPreference != null && mPreference.isChecked() != isChecked) {
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mPreference.setChecked(isChecked);
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}
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}
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@Override
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public void onBatteryChanged(boolean pluggedIn) {
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if (mPreference != null) {
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mPreference.setButtonEnabled(!pluggedIn);
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}
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}
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}
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