Branch the following two files to make the next cl easy to review.

/*

 * Copyright (C) 2024 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;

import android.content.Context;

import android.content.Intent;

import android.os.BatteryManager;

import android.os.PowerManager;

import android.util.Log;

import androidx.annotation.VisibleForTesting;

import androidx.preference.PreferenceScreen;

import com.android.settings.R;

import com.android.settings.core.BasePreferenceController;

import com.android.settings.core.PreferenceControllerMixin;

import com.android.settings.fuelgauge.batterytip.tips.BatteryTip;

import com.android.settings.overlay.FeatureFactory;

import com.android.settingslib.Utils;

import com.android.settingslib.widget.UsageProgressBarPreference;

/** Controller that update the battery header view */

public class BatteryHeaderTextPreferenceController extends BasePreferenceController

        implements PreferenceControllerMixin, BatteryPreferenceController {

    private static final String TAG = "BatteryHeaderPreferenceController";

    @VisibleForTesting static final String KEY_BATTERY_HEADER = "battery_header";

    private static final int BATTERY_MAX_LEVEL = 100;

    @VisibleForTesting BatteryStatusFeatureProvider mBatteryStatusFeatureProvider;

    @VisibleForTesting UsageProgressBarPreference mBatteryUsageProgressBarPref;

    private final PowerManager mPowerManager;

    private final BatterySettingsFeatureProvider mBatterySettingsFeatureProvider;

    private BatteryTip mBatteryTip;

    public BatteryHeaderTextPreferenceController(Context context, String key) {

        super(context, key);

        mPowerManager = context.getSystemService(PowerManager.class);

        mBatteryStatusFeatureProvider =

                FeatureFactory.getFeatureFactory().getBatteryStatusFeatureProvider();

        mBatterySettingsFeatureProvider =

                FeatureFactory.getFeatureFactory().getBatterySettingsFeatureProvider();

    }

    @Override

    public void displayPreference(PreferenceScreen screen) {

        super.displayPreference(screen);

        mBatteryUsageProgressBarPref = screen.findPreference(getPreferenceKey());

        // Set up empty space text first to prevent layout flaky before info loaded.

        mBatteryUsageProgressBarPref.setBottomSummary(" ");

        if (com.android.settings.Utils.isBatteryPresent(mContext)) {

            quickUpdateHeaderPreference();

        } else {

            mBatteryUsageProgressBarPref.setVisible(false);

        }

    }

    @Override

    public int getAvailabilityStatus() {

        return AVAILABLE_UNSEARCHABLE;

    }

    private CharSequence generateLabel(BatteryInfo info) {

        if (Utils.containsIncompatibleChargers(mContext, TAG)) {

            return mContext.getString(

                    com.android.settingslib.R.string.battery_info_status_not_charging);

        }

        if (BatteryUtils.isBatteryDefenderOn(info)

                || FeatureFactory.getFeatureFactory()

                .getPowerUsageFeatureProvider()

                .isExtraDefend()) {

            return mContext.getString(

                    com.android.settingslib.R.string.battery_info_status_charging_on_hold);

        }

        if (info.remainingLabel != null

                && mBatterySettingsFeatureProvider.isChargingOptimizationMode(mContext)) {

            return info.remainingLabel;

        }

        if (info.batteryStatus == BatteryManager.BATTERY_STATUS_NOT_CHARGING) {

            return info.statusLabel;

        }

        if (info.pluggedStatus == BatteryManager.BATTERY_PLUGGED_WIRELESS) {

            final CharSequence wirelessChargingLabel =

                    mBatterySettingsFeatureProvider.getWirelessChargingLabel(mContext, info);

            if (wirelessChargingLabel != null) {

                mBatteryUsageProgressBarPref.setBottomSummaryContentDescription(

                        mBatterySettingsFeatureProvider

                                .getWirelessChargingContentDescription(mContext, info));

                return wirelessChargingLabel;

            }

        }

        if (info.remainingLabel == null) {

            return info.statusLabel;

        }

        if (info.statusLabel != null && !info.discharging) {

            // Charging state

            if (com.android.settingslib.fuelgauge.BatteryUtils.isChargingStringV2Enabled()) {

                return info.isFastCharging

                        ? mContext.getString(

                                R.string.battery_state_and_duration,

                                info.statusLabel,

                                info.remainingLabel)

                        : info.remainingLabel;

            }

            return mContext.getString(

                    R.string.battery_state_and_duration, info.statusLabel, info.remainingLabel);

        } else if (mPowerManager.isPowerSaveMode()) {

            // Power save mode is on

            final String powerSaverOn =

                    mContext.getString(R.string.battery_tip_early_heads_up_done_title);

            return mContext.getString(

                    R.string.battery_state_and_duration, powerSaverOn, info.remainingLabel);

        } else if (mBatteryTip != null && mBatteryTip.getType() == BatteryTip.TipType.LOW_BATTERY) {

            // Low battery state

            final String lowBattery = mContext.getString(R.string.low_battery_summary);

            return mContext.getString(

                    R.string.battery_state_and_duration, lowBattery, info.remainingLabel);

        } else {

            // Discharging state

            return info.remainingLabel;

        }

    }

    /** Updates the battery header. */

    public void updateHeaderPreference(BatteryInfo info) {

        if (!mBatteryStatusFeatureProvider.triggerBatteryStatusUpdate(this, info)) {

            mBatteryUsageProgressBarPref.setBottomSummary(generateLabel(info));

        }

        mBatteryUsageProgressBarPref.setUsageSummary(

                formatBatteryPercentageText(info.batteryLevel));

        mBatteryUsageProgressBarPref.setPercent(info.batteryLevel, BATTERY_MAX_LEVEL);

    }

    /** Callback which receives text for the summary line. */

    public void updateBatteryStatus(String label, BatteryInfo info) {

        final CharSequence summary = label != null ? label : generateLabel(info);

        mBatteryUsageProgressBarPref.setBottomSummary(summary);

        Log.d(TAG, "updateBatteryStatus: " + label + " summary: " + summary);

    }

    /** Updates the battery header quickly. */

    public void quickUpdateHeaderPreference() {

        Intent batteryBroadcast =

                com.android.settingslib.fuelgauge.BatteryUtils.getBatteryIntent(mContext);

        final int batteryLevel = Utils.getBatteryLevel(batteryBroadcast);

        final boolean discharging =

                batteryBroadcast.getIntExtra(BatteryManager.EXTRA_PLUGGED, -1) == 0;

        mBatteryUsageProgressBarPref.setUsageSummary(formatBatteryPercentageText(batteryLevel));

        mBatteryUsageProgressBarPref.setPercent(batteryLevel, BATTERY_MAX_LEVEL);

    }

    /** Update summary when battery tips changed. */

    public void updateHeaderByBatteryTips(BatteryTip batteryTip, BatteryInfo batteryInfo) {

        mBatteryTip = batteryTip;

        if (mBatteryTip != null && batteryInfo != null) {

            updateHeaderPreference(batteryInfo);

        }

    }

    private CharSequence formatBatteryPercentageText(int batteryLevel) {

        return com.android.settings.Utils.formatPercentage(batteryLevel);

    }

}