1 /*
2  * Copyright (C) 2018 The Android Open Source Project
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *      http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  *
15  */
16 package com.android.settings.fuelgauge.batterysaver;
17 
18 import android.content.ContentResolver;
19 import android.content.Context;
20 import android.os.PowerManager;
21 import android.provider.Settings;
22 import android.provider.Settings.Global;
23 
24 import androidx.annotation.VisibleForTesting;
25 import androidx.preference.Preference;
26 import androidx.preference.PreferenceScreen;
27 
28 import com.android.settings.R;
29 import com.android.settings.Utils;
30 import com.android.settings.core.BasePreferenceController;
31 import com.android.settingslib.fuelgauge.BatterySaverUtils;
32 
33 /**
34  * Simple controller to navigate users to the scheduling page from
35  * "Settings > Battery > Battery Saver". Also updates the summary for preference based on
36  * the currently selected settings.
37  */
38 public class BatterySaverSchedulePreferenceController extends BasePreferenceController {
39 
40     @VisibleForTesting
41     Preference mBatterySaverSchedulePreference;
42     public static final String KEY_BATTERY_SAVER_SCHEDULE = "battery_saver_schedule";
43 
44 
BatterySaverSchedulePreferenceController(Context context)45     public BatterySaverSchedulePreferenceController(Context context) {
46         super(context, KEY_BATTERY_SAVER_SCHEDULE);
47         BatterySaverUtils.revertScheduleToNoneIfNeeded(context);
48     }
49 
50     @Override
getPreferenceKey()51     public String getPreferenceKey() {
52         return KEY_BATTERY_SAVER_SCHEDULE;
53     }
54 
55     @Override
displayPreference(PreferenceScreen screen)56     public void displayPreference(PreferenceScreen screen) {
57         super.displayPreference(screen);
58         mBatterySaverSchedulePreference = screen.findPreference(KEY_BATTERY_SAVER_SCHEDULE);
59     }
60 
61     @Override
getSummary()62     public CharSequence getSummary() {
63         final ContentResolver resolver = mContext.getContentResolver();
64         final int mode = Settings.Global.getInt(resolver, Global.AUTOMATIC_POWER_SAVE_MODE,
65                 PowerManager.POWER_SAVE_MODE_TRIGGER_PERCENTAGE);
66         if (mode == PowerManager.POWER_SAVE_MODE_TRIGGER_PERCENTAGE) {
67             final int threshold =
68                     Settings.Global.getInt(resolver, Global.LOW_POWER_MODE_TRIGGER_LEVEL, 0);
69             if (threshold <= 0) {
70                 return mContext.getText(R.string.battery_saver_auto_no_schedule);
71             } else {
72                 return mContext.getString(R.string.battery_saver_auto_percentage_summary,
73                         Utils.formatPercentage(threshold));
74             }
75         } else {
76             return mContext.getText(R.string.battery_saver_auto_routine);
77         }
78     }
79 
80     @Override
getAvailabilityStatus()81     public int getAvailabilityStatus() {
82         return AVAILABLE;
83     }
84 }
85