Merge "Add UsageProgressBarPreference"

        "SettingsLibTopIntroPreference",

        "SettingsLibBannerMessagePreference",

        "SettingsLibFooterPreference",

        "SettingsLibUsageProgressBarPreference",

    ],

}

android_library {

    name: "SettingsLibUsageProgressBarPreference",

    srcs: ["src/**/*.java"],

    resource_dirs: ["res"],

    static_libs: [

        "androidx.preference_preference",

    ],

    sdk_version: "system_current",

    min_sdk_version: "21",

}

<?xml version="1.0" encoding="utf-8"?>

<!--

  Copyright (C) 2021 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.

-->

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

          package="com.android.settingslib.widget">

    <uses-sdk android:minSdkVersion="21" />

</manifest>

<?xml version="1.0" encoding="utf-8"?>

<!--

  Copyright (C) 2021 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.

  -->

<LinearLayout

    xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="wrap_content"

    android:gravity="center_vertical"

    android:orientation="vertical"

    android:layout_marginStart="16dp"

    android:layout_marginEnd="16dp"

    android:paddingTop="32dp"

    android:paddingBottom="32dp">

    <RelativeLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content">

        <TextView

            android:id="@+id/usage_summary"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:layout_alignParentStart="true"

            android:layout_alignBaseline="@id/total_summary"

            android:singleLine="true"

            android:ellipsize="marquee"

            android:fontFamily="@*android:string/config_headlineFontFamily"

            android:textAppearance="@*android:style/TextAppearance.DeviceDefault.Display1"

            android:textSize="20sp"/>

        <TextView

            android:id="@+id/total_summary"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:layout_alignParentEnd="true"

            android:singleLine="true"

            android:ellipsize="marquee"

            android:textAppearance="@*android:style/TextAppearance.DeviceDefault.Body1"/>

    </RelativeLayout>

    <ProgressBar

        android:id="@android:id/progress"

        style="?android:attr/progressBarStyleHorizontal"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:scaleY="2"

        android:layout_marginTop="4dp"

        android:max="100"/>

</LinearLayout>

/*

 * Copyright (C) 2021 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.settingslib.widget;

import android.content.Context;

import android.text.SpannableString;

import android.text.Spanned;

import android.text.TextUtils;

import android.text.style.RelativeSizeSpan;

import android.util.AttributeSet;

import android.widget.ProgressBar;

import android.widget.TextView;

import androidx.preference.Preference;

import androidx.preference.PreferenceViewHolder;

import java.util.regex.Matcher;

import java.util.regex.Pattern;

/**

 * Progres bar preference with a usage summary and a total summary.

 * This preference shows number in usage summary with enlarged font size.

 */

public class UsageProgressBarPreference extends Preference {

    private final Pattern mNumberPattern = Pattern.compile("[\\d]*\\.?[\\d]+");

    private CharSequence mUsageSummary;

    private CharSequence mTotalSummary;

    private int mPercent = -1;

    /**

     * Perform inflation from XML and apply a class-specific base style.

     *

     * @param context  The {@link Context} this is associated with, through which it can

     *                 access the current theme, resources, {@link SharedPreferences}, etc.

     * @param attrs    The attributes of the XML tag that is inflating the preference

     * @param defStyle An attribute in the current theme that contains a reference to a style

     *                 resource that supplies default values for the view. Can be 0 to not

     *                 look for defaults.

     */

    public UsageProgressBarPreference(Context context, AttributeSet attrs, int defStyle) {

        super(context, attrs, defStyle);

        setLayoutResource(R.layout.preference_usage_progress_bar);

    }

    /**

     * Perform inflation from XML and apply a class-specific base style.

     *

     * @param context The {@link Context} this is associated with, through which it can

     *                access the current theme, resources, {@link SharedPreferences}, etc.

     * @param attrs   The attributes of the XML tag that is inflating the preference

     */

    public UsageProgressBarPreference(Context context, AttributeSet attrs) {

        super(context, attrs);

        setLayoutResource(R.layout.preference_usage_progress_bar);

    }

    /**

     * Constructor to create a preference.

     *

     * @param context The Context this is associated with.

     */

    public UsageProgressBarPreference(Context context) {

        this(context, null);

    }

    /** Set usage summary, number in the summary will show with enlarged font size. */

    public void setUsageSummary(CharSequence usageSummary) {

        if (TextUtils.equals(mUsageSummary, usageSummary)) {

            return;

        }

        mUsageSummary = usageSummary;

        notifyChanged();

    }

    /** Set total summary. */

    public void setTotalSummary(CharSequence totalSummary) {

        if (TextUtils.equals(mTotalSummary, totalSummary)) {

            return;

        }

        mTotalSummary = totalSummary;

        notifyChanged();

    }

    /** Set percentage of the progress bar. */

    public void setPercent(long usage, long total) {

        if (total == 0L || usage >  total) {

            return;

        }

        final int percent = (int) (usage / (double) total * 100);

        if (mPercent == percent) {

            return;

        }

        mPercent = percent;

        notifyChanged();

    }

    /**

     * Binds the created View to the data for this preference.

     *

     * <p>This is a good place to grab references to custom Views in the layout and set

     * properties on them.

     *

     * <p>Make sure to call through to the superclass's implementation.

     *

     * @param holder The ViewHolder that provides references to the views to fill in. These views

     *               will be recycled, so you should not hold a reference to them after this method

     *               returns.

     */

    @Override

    public void onBindViewHolder(PreferenceViewHolder holder) {

        super.onBindViewHolder(holder);

        final TextView usageSummary = (TextView) holder.findViewById(R.id.usage_summary);

        usageSummary.setText(enlargeFontOfNumber(mUsageSummary));

        final TextView totalSummary = (TextView) holder.findViewById(R.id.total_summary);

        if (mTotalSummary != null) {

            totalSummary.setText(mTotalSummary);

        }

        final ProgressBar progressBar = (ProgressBar) holder.findViewById(android.R.id.progress);

        if (mPercent < 0) {

            progressBar.setIndeterminate(true);

        } else {

            progressBar.setIndeterminate(false);

            progressBar.setProgress(mPercent);

        }

    }

    private CharSequence enlargeFontOfNumber(CharSequence summary) {

        if (TextUtils.isEmpty(summary)) {

            return "";

        }

        final Matcher matcher = mNumberPattern.matcher(summary);

        if (matcher.find()) {

            final SpannableString spannableSummary =  new SpannableString(summary);

            spannableSummary.setSpan(new RelativeSizeSpan(2.4f), matcher.start(),

                    matcher.end(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

            return spannableSummary;

        }

        return summary;

    }

}