1 /*
2  * Copyright (C) 2020 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.preference.Preference;
23 import androidx.preference.SwitchPreference;
24 
25 import com.android.settings.core.PreferenceControllerMixin;
26 import com.android.settingslib.development.DeveloperOptionsPreferenceController;
27 
28 /**
29  * Developer option controller for enhanced MAC randomization.
30  */
31 public class WifiEnhancedMacRandomizationPreferenceController
32         extends DeveloperOptionsPreferenceController
33         implements Preference.OnPreferenceChangeListener, PreferenceControllerMixin {
34     private static final String WIFI_ENHANCED_MAC_RANDOMIZATION_KEY =
35             "wifi_enhanced_mac_randomization";
36     private static final String ENHANCED_MAC_RANDOMIZATION_FEATURE_FLAG =
37             "enhanced_mac_randomization_force_enabled";
38 
WifiEnhancedMacRandomizationPreferenceController(Context context)39     public WifiEnhancedMacRandomizationPreferenceController(Context context) {
40         super(context);
41     }
42 
43     @Override
getPreferenceKey()44     public String getPreferenceKey() {
45         return WIFI_ENHANCED_MAC_RANDOMIZATION_KEY;
46     }
47 
48     @Override
onPreferenceChange(Preference preference, Object newValue)49     public boolean onPreferenceChange(Preference preference, Object newValue) {
50         int isEnabledInt = ((Boolean) newValue) ? 1 : 0;
51         Settings.Global.putInt(mContext.getContentResolver(),
52                 ENHANCED_MAC_RANDOMIZATION_FEATURE_FLAG, isEnabledInt);
53         return true;
54     }
55 
56     @Override
updateState(Preference preference)57     public void updateState(Preference preference) {
58         boolean enabled = false;
59         if (Settings.Global.getInt(mContext.getContentResolver(),
60                 ENHANCED_MAC_RANDOMIZATION_FEATURE_FLAG, 0) == 1) {
61             enabled = true;
62         }
63         ((SwitchPreference) mPreference).setChecked(enabled);
64     }
65 
66     @Override
onDeveloperOptionsSwitchDisabled()67     protected void onDeveloperOptionsSwitchDisabled() {
68         super.onDeveloperOptionsSwitchDisabled();
69         Settings.Global.putInt(mContext.getContentResolver(),
70                 ENHANCED_MAC_RANDOMIZATION_FEATURE_FLAG, 0);
71         ((SwitchPreference) mPreference).setChecked(false);
72     }
73 }
74