1 /*
2  * Copyright (C) 2017 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.keyguard;
18 
19 import android.app.AlertDialog;
20 import android.app.PendingIntent;
21 import android.content.BroadcastReceiver;
22 import android.content.Context;
23 import android.content.Intent;
24 import android.content.IntentFilter;
25 import android.os.UserHandle;
26 import android.telephony.SubscriptionInfo;
27 import android.telephony.SubscriptionManager;
28 import android.telephony.euicc.EuiccManager;
29 import android.util.AttributeSet;
30 import android.util.Log;
31 import android.view.View;
32 import android.view.WindowManager;
33 import android.widget.Button;
34 
35 import com.android.systemui.R;
36 
37 /***
38  * This button is used by the device with embedded SIM card to disable current carrier to unlock
39  * the device with no cellular service.
40  */
41 class KeyguardEsimArea extends Button implements View.OnClickListener {
42     private static final String ACTION_DISABLE_ESIM = "com.android.keyguard.disable_esim";
43     private static final String TAG = "KeyguardEsimArea";
44     private static final String PERMISSION_SELF = "com.android.systemui.permission.SELF";
45 
46     private EuiccManager mEuiccManager;
47 
48     private BroadcastReceiver mReceiver =
49         new BroadcastReceiver() {
50             @Override
51             public void onReceive(Context context, Intent intent) {
52                 if (ACTION_DISABLE_ESIM.equals(intent.getAction())) {
53                     int resultCode = getResultCode();
54                     if (resultCode != EuiccManager.EMBEDDED_SUBSCRIPTION_RESULT_OK) {
55                         Log.e(TAG, "Error disabling esim, result code = " + resultCode);
56                         AlertDialog.Builder builder =
57                                 new AlertDialog.Builder(mContext)
58                                         .setMessage(R.string.error_disable_esim_msg)
59                                         .setTitle(R.string.error_disable_esim_title)
60                                         .setCancelable(false /* cancelable */)
61                                         .setPositiveButton(R.string.ok, null /* listener */);
62                         AlertDialog alertDialog = builder.create();
63                         alertDialog.getWindow().setType(
64                                 WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG);
65                         alertDialog.show();
66                     }
67                 }
68             }
69         };
70 
KeyguardEsimArea(Context context)71     public KeyguardEsimArea(Context context) {
72         this(context, null);
73     }
74 
KeyguardEsimArea(Context context, AttributeSet attrs)75     public KeyguardEsimArea(Context context, AttributeSet attrs) {
76         this(context, attrs, 0);
77     }
78 
KeyguardEsimArea(Context context, AttributeSet attrs, int defStyleAttr)79     public KeyguardEsimArea(Context context, AttributeSet attrs, int defStyleAttr) {
80         this(context, attrs, defStyleAttr, android.R.style.Widget_Material_Button_Borderless);
81     }
82 
KeyguardEsimArea(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes)83     public KeyguardEsimArea(Context context, AttributeSet attrs, int defStyleAttr,
84             int defStyleRes) {
85         super(context, attrs, defStyleAttr, defStyleRes);
86         mEuiccManager = (EuiccManager) context.getSystemService(Context.EUICC_SERVICE);
87         setOnClickListener(this);
88     }
89 
90     @Override
onAttachedToWindow()91     protected void onAttachedToWindow() {
92         super.onAttachedToWindow();
93         mContext.registerReceiver(mReceiver, new IntentFilter(ACTION_DISABLE_ESIM),
94                 PERMISSION_SELF, null /* scheduler */);
95     }
96 
isEsimLocked(Context context, int subId)97     public static boolean isEsimLocked(Context context, int subId) {
98         EuiccManager euiccManager =
99                 (EuiccManager) context.getSystemService(Context.EUICC_SERVICE);
100         if (!euiccManager.isEnabled()) {
101             return false;
102         }
103         SubscriptionInfo sub = SubscriptionManager.from(context).getActiveSubscriptionInfo(subId);
104         return  sub != null && sub.isEmbedded();
105     }
106 
107     @Override
onDetachedFromWindow()108     protected void onDetachedFromWindow() {
109         mContext.unregisterReceiver(mReceiver);
110         super.onDetachedFromWindow();
111     }
112 
113     @Override
onClick(View v)114     public void onClick(View v) {
115         Intent intent = new Intent(ACTION_DISABLE_ESIM);
116         intent.setPackage(mContext.getPackageName());
117         PendingIntent callbackIntent = PendingIntent.getBroadcastAsUser(
118             mContext,
119             0 /* requestCode */,
120             intent,
121             PendingIntent.FLAG_UPDATE_CURRENT, UserHandle.SYSTEM);
122         mEuiccManager
123                 .switchToSubscription(SubscriptionManager.INVALID_SUBSCRIPTION_ID, callbackIntent);
124     }
125 }
126