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