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.security;
18 
19 import android.app.KeyguardManager;
20 import android.app.settings.SettingsEnums;
21 import android.content.Context;
22 import android.provider.Settings;
23 
24 import androidx.preference.Preference;
25 import androidx.preference.TwoStatePreference;
26 
27 import com.android.settings.R;
28 import com.android.settings.core.BasePreferenceController;
29 import com.android.settings.network.helper.ConfirmationSimDeletionPredicate;
30 import com.android.settings.network.telephony.MobileNetworkUtils;
31 import com.android.settings.overlay.FeatureFactory;
32 import com.android.settings.wifi.dpp.WifiDppUtils;
33 import com.android.settingslib.core.instrumentation.MetricsFeatureProvider;
34 
35 /** Enable/disable user confirmation before deleting an eSim */
36 public class ConfirmSimDeletionPreferenceController extends BasePreferenceController implements
37         Preference.OnPreferenceChangeListener{
38     public static final String KEY_CONFIRM_SIM_DELETION =
39             ConfirmationSimDeletionPredicate.KEY_CONFIRM_SIM_DELETION;
40     private boolean mConfirmationDefaultOn;
41     private MetricsFeatureProvider mMetricsFeatureProvider;
42 
ConfirmSimDeletionPreferenceController(Context context, String key)43     public ConfirmSimDeletionPreferenceController(Context context, String key) {
44         super(context, key);
45         mConfirmationDefaultOn =
46                 context.getResources()
47                         .getBoolean(R.bool.config_sim_deletion_confirmation_default_on);
48         mMetricsFeatureProvider = FeatureFactory.getFactory(context).getMetricsFeatureProvider();
49     }
50 
51     @Override
getAvailabilityStatus()52     public int getAvailabilityStatus() {
53         // hide if eSim is not supported on the device
54         return MobileNetworkUtils.showEuiccSettings(mContext) ? AVAILABLE : UNSUPPORTED_ON_DEVICE;
55     }
56 
getGlobalState()57     private boolean getGlobalState() {
58         return Settings.Global.getInt(
59                         mContext.getContentResolver(),
60                         KEY_CONFIRM_SIM_DELETION,
61                         mConfirmationDefaultOn ? 1 : 0)
62                 == 1;
63     }
64 
isChecked()65     public boolean isChecked() {
66         return getGlobalState();
67     }
68 
setChecked(boolean isChecked)69     public boolean setChecked(boolean isChecked) {
70         Settings.Global.putInt(
71                 mContext.getContentResolver(), KEY_CONFIRM_SIM_DELETION, isChecked ? 1 : 0);
72         return true;
73     }
74 
75     // handle UI change
76     @Override
onPreferenceChange(Preference preference, Object newValue)77     public boolean onPreferenceChange(Preference preference, Object newValue) {
78         if (!preference.getKey().equals(getPreferenceKey())) {
79             return false;
80         }
81         if (!isChecked()) {
82             mMetricsFeatureProvider.action(mContext,
83                     SettingsEnums.ACTION_CONFIRM_SIM_DELETION_ON);
84             setChecked(true);
85             return true;
86         } else {
87             // prevent disabling the feature until authorized
88             WifiDppUtils.showLockScreen(mContext, () -> {
89                 mMetricsFeatureProvider.action(mContext,
90                         SettingsEnums.ACTION_CONFIRM_SIM_DELETION_OFF);
91                 // set data
92                 setChecked(false);
93                 // set UI
94                 ((TwoStatePreference) preference).setChecked(false);
95             });
96             return false;
97         }
98     }
99 
100     @Override
updateState(Preference preference)101     public void updateState(Preference preference) {
102         final KeyguardManager keyguardManager = mContext.getSystemService(KeyguardManager.class);
103         if (!keyguardManager.isKeyguardSecure()) {
104             preference.setEnabled(false);
105             if (preference instanceof TwoStatePreference) {
106                 ((TwoStatePreference) preference).setChecked(false);
107             }
108             preference.setSummary(R.string.disabled_because_no_backup_security);
109         } else {
110             preference.setEnabled(true);
111             if (preference instanceof TwoStatePreference) {
112                 ((TwoStatePreference) preference).setChecked(getGlobalState());
113             }
114             preference.setSummary(R.string.confirm_sim_deletion_description);
115         }
116     }
117 }
118