1 /*
2  * Copyright (C) 2019 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 
17 package com.android.settings.development;
18 
19 import android.content.Context;
20 import android.provider.Settings;
21 
22 import androidx.annotation.VisibleForTesting;
23 import androidx.preference.Preference;
24 import androidx.preference.SwitchPreference;
25 
26 import com.android.settings.core.PreferenceControllerMixin;
27 import com.android.settingslib.development.DeveloperOptionsPreferenceController;
28 
29 public class WifiScanThrottlingPreferenceController extends DeveloperOptionsPreferenceController
30         implements Preference.OnPreferenceChangeListener, PreferenceControllerMixin {
31     private static final String WIFI_SCAN_THROTTLING_KEY = "wifi_scan_throttling";
32     @VisibleForTesting
33     static final int SETTING_THROTTLING_ENABLE_VALUE_ON = 1;  // default is throttling enabled.
34     @VisibleForTesting
35     static final int SETTING_THROTTLING_ENABLE_VALUE_OFF = 0;
36 
WifiScanThrottlingPreferenceController(Context context)37     public WifiScanThrottlingPreferenceController(Context context) {
38         super(context);
39     }
40 
41     @Override
getPreferenceKey()42     public String getPreferenceKey() {
43         return WIFI_SCAN_THROTTLING_KEY;
44     }
45 
46     @Override
onPreferenceChange(Preference preference, Object newValue)47     public boolean onPreferenceChange(Preference preference, Object newValue) {
48         final boolean isEnabled = (Boolean) newValue;
49         Settings.Global.putInt(mContext.getContentResolver(),
50                 Settings.Global.WIFI_SCAN_THROTTLE_ENABLED,
51                 isEnabled
52                         ? SETTING_THROTTLING_ENABLE_VALUE_ON
53                         : SETTING_THROTTLING_ENABLE_VALUE_OFF);
54         return true;
55     }
56 
57     @Override
updateState(Preference preference)58     public void updateState(Preference preference) {
59         final int scanThrottleEnabled = Settings.Global.getInt(
60                 mContext.getContentResolver(), Settings.Global.WIFI_SCAN_THROTTLE_ENABLED,
61                 SETTING_THROTTLING_ENABLE_VALUE_ON);
62         ((SwitchPreference) mPreference).setChecked(
63                 scanThrottleEnabled == SETTING_THROTTLING_ENABLE_VALUE_ON);
64     }
65 
66     @Override
onDeveloperOptionsSwitchDisabled()67     protected void onDeveloperOptionsSwitchDisabled() {
68         super.onDeveloperOptionsSwitchDisabled();
69         Settings.Global.putInt(mContext.getContentResolver(),
70                 Settings.Global.WIFI_SCAN_THROTTLE_ENABLED, SETTING_THROTTLING_ENABLE_VALUE_ON);
71         ((SwitchPreference) mPreference).setChecked(true);
72     }
73 }
74