NetInitiatedActivity.java revision ffc3f8f40c7eff0bc3bb43f74a1a0e9235acb258 
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
17package com.android.internal.app;
18
19import android.app.AlertDialog;
20import android.content.BroadcastReceiver;
21import android.content.Context;
22import android.content.DialogInterface;
23import android.content.Intent;
24import android.content.IntentFilter;
25import android.os.Bundle;
26import android.os.Handler;
27import android.os.Message;
28import android.os.RemoteException;
29import android.os.ServiceManager;
30import android.widget.Toast;
31import android.util.Log;
32import android.location.LocationManager;
33import 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 */
39public 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.BUTTON1;
47    private static final int NEGATIVE_BUTTON = AlertDialog.BUTTON2;
48
49    // Dialog button text
50    public static final String BUTTON_TEXT_ACCEPT = "Accept";
51    public static final String BUTTON_TEXT_DENY = "Deny";
52
53    // Received ID from intent, -1 when no notification is in progress
54    private int notificationId = -1;
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    @Override
68    protected void onCreate(Bundle savedInstanceState) {
69        super.onCreate(savedInstanceState);
70
71        // Set up the "dialog"
72        final Intent intent = getIntent();
73        final AlertController.AlertParams p = mAlertParams;
74        p.mIconId = com.android.internal.R.drawable.ic_dialog_usb;
75        p.mTitle = intent.getStringExtra(GpsNetInitiatedHandler.NI_INTENT_KEY_TITLE);
76        p.mMessage = intent.getStringExtra(GpsNetInitiatedHandler.NI_INTENT_KEY_MESSAGE);
77        p.mPositiveButtonText = BUTTON_TEXT_ACCEPT;
78        p.mPositiveButtonListener = this;
79        p.mNegativeButtonText = BUTTON_TEXT_DENY;
80        p.mNegativeButtonListener = this;
81
82        notificationId = intent.getIntExtra(GpsNetInitiatedHandler.NI_INTENT_KEY_NOTIF_ID, -1);
83        if (DEBUG) Log.d(TAG, "onCreate, notifId: " + notificationId);
84
85        setupAlert();
86    }
87
88    @Override
89    protected void onResume() {
90        super.onResume();
91        if (DEBUG) Log.d(TAG, "onResume");
92        registerReceiver(mNetInitiatedReceiver, new IntentFilter(GpsNetInitiatedHandler.ACTION_NI_VERIFY));
93    }
94
95    @Override
96    protected void onPause() {
97        super.onPause();
98        if (DEBUG) Log.d(TAG, "onPause");
99        unregisterReceiver(mNetInitiatedReceiver);
100    }
101
102    /**
103     * {@inheritDoc}
104     */
105    public void onClick(DialogInterface dialog, int which) {
106        if (which == POSITIVE_BUTTON) {
107            sendUserResponse(GpsNetInitiatedHandler.GPS_NI_RESPONSE_ACCEPT);
108        }
109        if (which == NEGATIVE_BUTTON) {
110            sendUserResponse(GpsNetInitiatedHandler.GPS_NI_RESPONSE_DENY);
111        }
112
113        // No matter what, finish the activity
114        finish();
115        notificationId = -1;
116    }
117
118    // Respond to NI Handler under GpsLocationProvider, 1 = accept, 2 = deny
119    private void sendUserResponse(int response) {
120        if (DEBUG) Log.d(TAG, "sendUserResponse, response: " + response);
121        LocationManager locationManager = (LocationManager)
122            this.getSystemService(Context.LOCATION_SERVICE);
123        locationManager.sendNiResponse(notificationId, response);
124    }
125
126    private void handleNIVerify(Intent intent) {
127        int notifId = intent.getIntExtra(GpsNetInitiatedHandler.NI_INTENT_KEY_NOTIF_ID, -1);
128        notificationId = notifId;
129
130        if (DEBUG) Log.d(TAG, "handleNIVerify action: " + intent.getAction());
131    }
132
133    private void showNIError() {
134        Toast.makeText(this, "NI error" /* com.android.internal.R.string.usb_storage_error_message */,
135                Toast.LENGTH_LONG).show();
136    }
137}
138