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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.Handler;
26 import android.os.HandlerThread;
27 import android.os.UserHandle;
28 import android.util.AttributeSet;
29 import android.view.View;
30 import android.view.WindowManager;
31 import android.widget.Button;
32 import android.telephony.SubscriptionManager;
33 import android.telephony.SubscriptionInfo;
34 import android.telephony.euicc.EuiccManager;
35 import android.util.Log;
36 
37 import java.lang.ref.WeakReference;
38 
39 /***
40  * This button is used by the device with embedded SIM card to disable current carrier to unlock
41  * the device with no cellular service.
42  */
43 class KeyguardEsimArea extends Button implements View.OnClickListener {
44     private static final String ACTION_DISABLE_ESIM = "com.android.keyguard.disable_esim";
45     private static final String TAG = "KeyguardEsimArea";
46     private static final String PERMISSION_SELF = "com.android.systemui.permission.SELF";
47 
48     private EuiccManager mEuiccManager;
49 
50     private BroadcastReceiver mReceiver =
51         new BroadcastReceiver() {
52             @Override
53             public void onReceive(Context context, Intent intent) {
54                 if (ACTION_DISABLE_ESIM.equals(intent.getAction())) {
55                     int resultCode = getResultCode();
56                     if (resultCode != EuiccManager.EMBEDDED_SUBSCRIPTION_RESULT_OK) {
57                         Log.e(TAG, "Error disabling esim, result code = " + resultCode);
58                         AlertDialog.Builder builder =
59                                 new AlertDialog.Builder(mContext)
60                                         .setMessage(R.string.error_disable_esim_msg)
61                                         .setTitle(R.string.error_disable_esim_title)
62                                         .setCancelable(false /* cancelable */)
63                                         .setPositiveButton(R.string.ok, null /* listener */);
64                         AlertDialog alertDialog = builder.create();
65                         alertDialog.getWindow().setType(
66                                 WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG);
67                         alertDialog.show();
68                     }
69                 }
70             }
71         };
72 
KeyguardEsimArea(Context context)73     public KeyguardEsimArea(Context context) {
74         this(context, null);
75     }
76 
KeyguardEsimArea(Context context, AttributeSet attrs)77     public KeyguardEsimArea(Context context, AttributeSet attrs) {
78         this(context, attrs, 0);
79     }
80 
KeyguardEsimArea(Context context, AttributeSet attrs, int defStyleAttr)81     public KeyguardEsimArea(Context context, AttributeSet attrs, int defStyleAttr) {
82         this(context, attrs, defStyleAttr, android.R.style.Widget_Material_Button_Borderless);
83     }
84 
KeyguardEsimArea(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes)85     public KeyguardEsimArea(Context context, AttributeSet attrs, int defStyleAttr,
86             int defStyleRes) {
87         super(context, attrs, defStyleAttr, defStyleRes);
88         mEuiccManager = (EuiccManager) context.getSystemService(Context.EUICC_SERVICE);
89         setOnClickListener(this);
90     }
91 
92     @Override
onAttachedToWindow()93     protected void onAttachedToWindow() {
94         super.onAttachedToWindow();
95         mContext.registerReceiver(mReceiver, new IntentFilter(ACTION_DISABLE_ESIM),
96                 PERMISSION_SELF, null /* scheduler */);
97     }
98 
isEsimLocked(Context context, int subId)99     public static boolean isEsimLocked(Context context, int subId) {
100         EuiccManager euiccManager =
101                 (EuiccManager) context.getSystemService(Context.EUICC_SERVICE);
102         if (!euiccManager.isEnabled()) {
103             return false;
104         }
105         SubscriptionInfo sub = SubscriptionManager.from(context).getActiveSubscriptionInfo(subId);
106         return  sub != null && sub.isEmbedded();
107     }
108 
109     @Override
onDetachedFromWindow()110     protected void onDetachedFromWindow() {
111         mContext.unregisterReceiver(mReceiver);
112         super.onDetachedFromWindow();
113     }
114 
115     @Override
onClick(View v)116     public void onClick(View v) {
117         Intent intent = new Intent(ACTION_DISABLE_ESIM);
118         intent.setPackage(mContext.getPackageName());
119         PendingIntent callbackIntent = PendingIntent.getBroadcastAsUser(
120             mContext,
121             0 /* requestCode */,
122             intent,
123             PendingIntent.FLAG_UPDATE_CURRENT, UserHandle.SYSTEM);
124         mEuiccManager
125                 .switchToSubscription(SubscriptionManager.INVALID_SUBSCRIPTION_ID, callbackIntent);
126     }
127 }
128