1 /*
2  * Copyright 2021 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 package com.android.settings.location;
17 
18 import android.content.Context;
19 import android.net.wifi.WifiManager;
20 import android.os.UserManager;
21 import android.widget.CompoundButton;
22 import android.widget.CompoundButton.OnCheckedChangeListener;
23 
24 import androidx.preference.PreferenceScreen;
25 
26 import com.android.settings.R;
27 import com.android.settings.core.TogglePreferenceController;
28 import com.android.settingslib.widget.MainSwitchPreference;
29 
30 /**
31  * Preference controller for Wi-Fi scanning main switch.
32  */
33 public class WifiScanningMainSwitchPreferenceController extends TogglePreferenceController
34         implements OnCheckedChangeListener {
35 
36     private static final String KEY_WIFI_SCANNING_SWITCH = "wifi_always_scanning_switch";
37     private final WifiManager mWifiManager;
38     private final UserManager mUserManager;
39 
WifiScanningMainSwitchPreferenceController(Context context)40     public WifiScanningMainSwitchPreferenceController(Context context) {
41         super(context, KEY_WIFI_SCANNING_SWITCH);
42         mWifiManager = context.getSystemService(WifiManager.class);
43         mUserManager = UserManager.get(context);
44     }
45 
46     @Override
displayPreference(PreferenceScreen screen)47     public void displayPreference(PreferenceScreen screen) {
48         super.displayPreference(screen);
49 
50         MainSwitchPreference pref = screen.findPreference(getPreferenceKey());
51         pref.addOnSwitchChangeListener(this);
52         pref.updateStatus(isChecked());
53     }
54 
55     @Override
getAvailabilityStatus()56     public int getAvailabilityStatus() {
57         return mContext.getResources().getBoolean(R.bool.config_show_location_scanning)
58                 ? (mUserManager.hasUserRestriction(UserManager.DISALLOW_CONFIG_LOCATION)
59                        ? DISABLED_DEPENDENT_SETTING
60                        : AVAILABLE)
61                 : UNSUPPORTED_ON_DEVICE;
62     }
63 
64     @Override
isChecked()65     public boolean isChecked() {
66         return mWifiManager.isScanAlwaysAvailable();
67     }
68 
69     @Override
setChecked(boolean isChecked)70     public boolean setChecked(boolean isChecked) {
71         mWifiManager.setScanAlwaysAvailable(isChecked);
72         // Returning true means the underlying setting is updated.
73         return true;
74     }
75 
76     @Override
getSliceHighlightMenuRes()77     public int getSliceHighlightMenuRes() {
78         return R.string.menu_key_location;
79     }
80 
81     @Override
onCheckedChanged(CompoundButton buttonView, boolean isChecked)82     public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
83         if (isChecked != isChecked()) {
84             setChecked(isChecked);
85         }
86     }
87 }
88