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Robert Greenwalt3901edb2010-01-26 10:22:37 -08001/*
2 * Copyright (C) 2008 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
17package com.android.settings;
18
Irfan Sheriff65cff172010-02-08 10:46:30 -080019import com.android.settings.wifi.WifiApEnabler;
20
Robert Greenwalt3901edb2010-01-26 10:22:37 -080021import android.os.Bundle;
22import android.os.SystemProperties;
23import android.content.BroadcastReceiver;
24import android.content.Context;
25import android.content.Intent;
26import android.content.IntentFilter;
27import android.net.ConnectivityManager;
Mike Lockwood26dad3e2010-03-03 06:19:55 -050028import android.os.Environment;
Robert Greenwalt3901edb2010-01-26 10:22:37 -080029import android.preference.Preference;
30import android.preference.PreferenceActivity;
31import android.preference.PreferenceScreen;
32import android.preference.CheckBoxPreference;
33import android.provider.Settings;
34import android.util.Log;
35
Robert Greenwaltc4764d22010-02-12 14:21:37 -080036import java.util.ArrayList;
Irfan Sheriff65cff172010-02-08 10:46:30 -080037
Robert Greenwalt3901edb2010-01-26 10:22:37 -080038/*
39 * Displays preferences for Tethering.
40 */
41public class TetherSettings extends PreferenceActivity {
Robert Greenwalt3901edb2010-01-26 10:22:37 -080042 private static final String USB_TETHER_SETTINGS = "usb_tether_settings";
Irfan Sheriff65cff172010-02-08 10:46:30 -080043 private static final String ENABLE_WIFI_AP = "enable_wifi_ap";
44 private static final String WIFI_AP_SETTINGS = "wifi_ap_settings";
Robert Greenwalt3901edb2010-01-26 10:22:37 -080045
Robert Greenwalt3901edb2010-01-26 10:22:37 -080046 private PreferenceScreen mUsbTether;
47
Irfan Sheriff65cff172010-02-08 10:46:30 -080048 private CheckBoxPreference mEnableWifiAp;
49 private PreferenceScreen mWifiApSettings;
50 private WifiApEnabler mWifiApEnabler;
51
Robert Greenwalt3901edb2010-01-26 10:22:37 -080052 private BroadcastReceiver mTetherChangeReceiver;
53
Robert Greenwaltc4764d22010-02-12 14:21:37 -080054 private String[] mUsbRegexs;
55 private ArrayList mUsbIfaces;
56
57 private String[] mWifiRegexs;
58 private ArrayList mWifiIfaces;
59
Robert Greenwalt3901edb2010-01-26 10:22:37 -080060 @Override
61 protected void onCreate(Bundle icicle) {
62 super.onCreate(icicle);
63
64 addPreferencesFromResource(R.xml.tether_prefs);
65
Robert Greenwalt3901edb2010-01-26 10:22:37 -080066 mUsbTether = (PreferenceScreen) findPreference(USB_TETHER_SETTINGS);
Irfan Sheriff65cff172010-02-08 10:46:30 -080067 mEnableWifiAp = (CheckBoxPreference) findPreference(ENABLE_WIFI_AP);
68 mWifiApSettings = (PreferenceScreen) findPreference(WIFI_AP_SETTINGS);
Robert Greenwaltc4764d22010-02-12 14:21:37 -080069
70 ConnectivityManager cm =
71 (ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE);
72 mUsbRegexs = cm.getTetherableUsbRegexs();
73 if (mUsbRegexs.length == 0) {
74 getPreferenceScreen().removePreference(mUsbTether);
Robert Greenwaltc4764d22010-02-12 14:21:37 -080075 }
Irfan Sheriff65cff172010-02-08 10:46:30 -080076
Robert Greenwaltc4764d22010-02-12 14:21:37 -080077 mWifiRegexs = cm.getTetherableWifiRegexs();
Irfan Sheriff65cff172010-02-08 10:46:30 -080078 if (mWifiRegexs.length == 0) {
79 getPreferenceScreen().removePreference(mEnableWifiAp);
80 getPreferenceScreen().removePreference(mWifiApSettings);
81 }
82 mWifiApEnabler = new WifiApEnabler(this, mEnableWifiAp);
Robert Greenwalt3901edb2010-01-26 10:22:37 -080083 }
84
Robert Greenwaltc4764d22010-02-12 14:21:37 -080085
Robert Greenwalt3901edb2010-01-26 10:22:37 -080086 private class TetherChangeReceiver extends BroadcastReceiver {
87 public void onReceive(Context content, Intent intent) {
Robert Greenwaltc4764d22010-02-12 14:21:37 -080088 // TODO - this should understand the interface types
89 ArrayList<String> available = intent.getStringArrayListExtra(
90 ConnectivityManager.EXTRA_AVAILABLE_TETHER);
91 ArrayList<String> active = intent.getStringArrayListExtra(
92 ConnectivityManager.EXTRA_ACTIVE_TETHER);
Robert Greenwaltd5f121c2010-03-02 17:33:11 -080093 ArrayList<String> errored = intent.getStringArrayListExtra(
94 ConnectivityManager.EXTRA_ERRORED_TETHER);
Robert Greenwaltc4764d22010-02-12 14:21:37 -080095
Robert Greenwaltd5f121c2010-03-02 17:33:11 -080096 updateState(available, active, errored);
Robert Greenwalt3901edb2010-01-26 10:22:37 -080097 }
98 }
99
100 @Override
101 protected void onResume() {
102 super.onResume();
Robert Greenwalt3901edb2010-01-26 10:22:37 -0800103
104 IntentFilter filter = new IntentFilter(ConnectivityManager.ACTION_TETHER_STATE_CHANGED);
Mike Lockwood26dad3e2010-03-03 06:19:55 -0500105 filter.addAction(Intent.ACTION_MEDIA_SHARED);
106 filter.addAction(Intent.ACTION_MEDIA_UNSHARED);
Robert Greenwalt3901edb2010-01-26 10:22:37 -0800107 mTetherChangeReceiver = new TetherChangeReceiver();
Robert Greenwaltc4764d22010-02-12 14:21:37 -0800108 Intent intent = registerReceiver(mTetherChangeReceiver, filter);
Robert Greenwalt3901edb2010-01-26 10:22:37 -0800109
Robert Greenwaltc4764d22010-02-12 14:21:37 -0800110 if (intent != null) mTetherChangeReceiver.onReceive(this, intent);
Irfan Sheriff65cff172010-02-08 10:46:30 -0800111 mWifiApEnabler.resume();
Robert Greenwalt3901edb2010-01-26 10:22:37 -0800112 }
113
114 @Override
115 protected void onPause() {
116 super.onPause();
117 unregisterReceiver(mTetherChangeReceiver);
118 mTetherChangeReceiver = null;
Irfan Sheriff65cff172010-02-08 10:46:30 -0800119 mWifiApEnabler.pause();
Robert Greenwalt3901edb2010-01-26 10:22:37 -0800120 }
121
Robert Greenwaltd5f121c2010-03-02 17:33:11 -0800122 private void updateState(ArrayList<String> available, ArrayList<String> tethered,
123 ArrayList<String> errored) {
Robert Greenwaltc4764d22010-02-12 14:21:37 -0800124 boolean usbTethered = false;
125 boolean usbAvailable = false;
Robert Greenwaltd5f121c2010-03-02 17:33:11 -0800126 boolean usbErrored = false;
Robert Greenwaltc4764d22010-02-12 14:21:37 -0800127 boolean wifiTethered = false;
128 boolean wifiAvailable = false;
Mike Lockwood26dad3e2010-03-03 06:19:55 -0500129 boolean massStorageActive =
130 Environment.MEDIA_SHARED.equals(Environment.getExternalStorageState());
Robert Greenwaltd5f121c2010-03-02 17:33:11 -0800131 boolean wifiErrored = false;
Robert Greenwaltc4764d22010-02-12 14:21:37 -0800132
133 for (String s : available) {
134 for (String regex : mUsbRegexs) {
135 if (s.matches(regex)) usbAvailable = true;
136 }
137 for (String regex : mWifiRegexs) {
138 if (s.matches(regex)) wifiAvailable = true;
139 }
140 }
141 for (String s : tethered) {
142 for (String regex : mUsbRegexs) {
143 if (s.matches(regex)) usbTethered = true;
144 }
145 for (String regex : mWifiRegexs) {
146 if (s.matches(regex)) wifiTethered = true;
147 }
148 }
Robert Greenwaltd5f121c2010-03-02 17:33:11 -0800149 for (String s: errored) {
150 for (String regex : mUsbRegexs) {
151 if (s.matches(regex)) usbErrored = true;
152 }
153 for (String regex : mWifiRegexs) {
154 if (s.matches(regex)) wifiErrored = true;
155 }
156 }
Robert Greenwaltc4764d22010-02-12 14:21:37 -0800157
158 if (usbTethered) {
Robert Greenwalt3901edb2010-01-26 10:22:37 -0800159 mUsbTether.setSummary(R.string.usb_tethering_active_subtext);
160 mUsbTether.setEnabled(true);
Mike Lockwood26dad3e2010-03-03 06:19:55 -0500161 } else if (massStorageActive) {
162 mUsbTether.setSummary(R.string.usb_tethering_storage_active_subtext);
163 mUsbTether.setEnabled(false);
Robert Greenwaltc4764d22010-02-12 14:21:37 -0800164 } else if (usbAvailable) {
Robert Greenwalt3901edb2010-01-26 10:22:37 -0800165 mUsbTether.setSummary(R.string.usb_tethering_available_subtext);
166 mUsbTether.setEnabled(true);
Robert Greenwaltd5f121c2010-03-02 17:33:11 -0800167 } else if (usbErrored) {
168 mUsbTether.setSummary(R.string.usb_tethering_errored_subtext);
169 mUsbTether.setEnabled(false);
Robert Greenwalt3901edb2010-01-26 10:22:37 -0800170 } else {
171 mUsbTether.setSummary(R.string.usb_tethering_unavailable_subtext);
172 mUsbTether.setEnabled(false);
173 }
174 }
Robert Greenwalt3901edb2010-01-26 10:22:37 -0800175}