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      1 /*
      2  * Copyright (C) 2007 Google Inc.
      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.internal.app;
     18 
     19 import android.app.AlertDialog;
     20 import android.content.BroadcastReceiver;
     21 import android.content.Context;
     22 import android.content.DialogInterface;
     23 import android.content.Intent;
     24 import android.content.IntentFilter;
     25 import android.os.Bundle;
     26 import android.os.Handler;
     27 import android.os.Message;
     28 import android.widget.Toast;
     29 import android.util.Log;
     30 import android.location.LocationManager;
     31 
     32 import com.android.internal.R;
     33 import com.android.internal.location.GpsNetInitiatedHandler;
     34 
     35 /**
     36  * This activity is shown to the user for him/her to accept or deny network-initiated
     37  * requests. It uses the alert dialog style. It will be launched from a notification.
     38  */
     39 public class NetInitiatedActivity extends AlertActivity implements DialogInterface.OnClickListener {
     40 
     41     private static final String TAG = "NetInitiatedActivity";
     42 
     43     private static final boolean DEBUG = true;
     44     private static final boolean VERBOSE = false;
     45 
     46     private static final int POSITIVE_BUTTON = AlertDialog.BUTTON_POSITIVE;
     47     private static final int NEGATIVE_BUTTON = AlertDialog.BUTTON_NEGATIVE;
     48 
     49     private static final int GPS_NO_RESPONSE_TIME_OUT = 1;
     50     // Received ID from intent, -1 when no notification is in progress
     51     private int notificationId = -1;
     52     private int timeout = -1;
     53     private int default_response = -1;
     54     private int default_response_timeout = 6;
     55 
     56     /** Used to detect when NI request is received */
     57     private BroadcastReceiver mNetInitiatedReceiver = new BroadcastReceiver() {
     58         @Override
     59         public void onReceive(Context context, Intent intent) {
     60             if (DEBUG) Log.d(TAG, "NetInitiatedReceiver onReceive: " + intent.getAction());
     61             if (intent.getAction() == GpsNetInitiatedHandler.ACTION_NI_VERIFY) {
     62                 handleNIVerify(intent);
     63             }
     64         }
     65     };
     66 
     67     private final Handler mHandler = new Handler() {
     68         public void handleMessage(Message msg) {
     69             switch (msg.what) {
     70             case GPS_NO_RESPONSE_TIME_OUT: {
     71                 if (notificationId != -1) {
     72                     sendUserResponse(default_response);
     73                 }
     74                 finish();
     75             }
     76             break;
     77             default:
     78             }
     79         }
     80     };
     81 
     82     @Override
     83     protected void onCreate(Bundle savedInstanceState) {
     84         super.onCreate(savedInstanceState);
     85 
     86         // Set up the "dialog"
     87         final Intent intent = getIntent();
     88         final AlertController.AlertParams p = mAlertParams;
     89         Context context = getApplicationContext();
     90         p.mTitle = intent.getStringExtra(GpsNetInitiatedHandler.NI_INTENT_KEY_TITLE);
     91         p.mMessage = intent.getStringExtra(GpsNetInitiatedHandler.NI_INTENT_KEY_MESSAGE);
     92         p.mPositiveButtonText = String.format(context.getString(R.string.gpsVerifYes));
     93         p.mPositiveButtonListener = this;
     94         p.mNegativeButtonText = String.format(context.getString(R.string.gpsVerifNo));
     95         p.mNegativeButtonListener = this;
     96 
     97         notificationId = intent.getIntExtra(GpsNetInitiatedHandler.NI_INTENT_KEY_NOTIF_ID, -1);
     98         timeout = intent.getIntExtra(GpsNetInitiatedHandler.NI_INTENT_KEY_TIMEOUT, default_response_timeout);
     99         default_response = intent.getIntExtra(GpsNetInitiatedHandler.NI_INTENT_KEY_DEFAULT_RESPONSE, GpsNetInitiatedHandler.GPS_NI_RESPONSE_ACCEPT);
    100         if (DEBUG) Log.d(TAG, "onCreate() : notificationId: " + notificationId + " timeout: " + timeout + " default_response:" + default_response);
    101 
    102         mHandler.sendMessageDelayed(mHandler.obtainMessage(GPS_NO_RESPONSE_TIME_OUT), (timeout * 1000));
    103         setupAlert();
    104     }
    105 
    106     @Override
    107     protected void onResume() {
    108         super.onResume();
    109         if (DEBUG) Log.d(TAG, "onResume");
    110         registerReceiver(mNetInitiatedReceiver, new IntentFilter(GpsNetInitiatedHandler.ACTION_NI_VERIFY));
    111     }
    112 
    113     @Override
    114     protected void onPause() {
    115         super.onPause();
    116         if (DEBUG) Log.d(TAG, "onPause");
    117         unregisterReceiver(mNetInitiatedReceiver);
    118     }
    119 
    120     /**
    121      * {@inheritDoc}
    122      */
    123     public void onClick(DialogInterface dialog, int which) {
    124         if (which == POSITIVE_BUTTON) {
    125             sendUserResponse(GpsNetInitiatedHandler.GPS_NI_RESPONSE_ACCEPT);
    126         }
    127         if (which == NEGATIVE_BUTTON) {
    128             sendUserResponse(GpsNetInitiatedHandler.GPS_NI_RESPONSE_DENY);
    129         }
    130 
    131         // No matter what, finish the activity
    132         finish();
    133         notificationId = -1;
    134     }
    135 
    136     // Respond to NI Handler under GnssLocationProvider, 1 = accept, 2 = deny
    137     private void sendUserResponse(int response) {
    138         if (DEBUG) Log.d(TAG, "sendUserResponse, response: " + response);
    139         LocationManager locationManager = (LocationManager)
    140             this.getSystemService(Context.LOCATION_SERVICE);
    141         locationManager.sendNiResponse(notificationId, response);
    142     }
    143 
    144     private void handleNIVerify(Intent intent) {
    145         int notifId = intent.getIntExtra(GpsNetInitiatedHandler.NI_INTENT_KEY_NOTIF_ID, -1);
    146         notificationId = notifId;
    147 
    148         if (DEBUG) Log.d(TAG, "handleNIVerify action: " + intent.getAction());
    149     }
    150 
    151     private void showNIError() {
    152         Toast.makeText(this, "NI error" /* com.android.internal.R.string.usb_storage_error_message */,
    153                 Toast.LENGTH_LONG).show();
    154     }
    155 }
    156