1/*
2 * Copyright (C) 2011 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.wifi;
18
19import android.content.Context;
20import android.net.wifi.WifiInfo;
21import android.net.wifi.WifiManager;
22import android.os.Bundle;
23import android.preference.CheckBoxPreference;
24import android.preference.ListPreference;
25import android.preference.Preference;
26import android.preference.PreferenceScreen;
27import android.provider.Settings;
28import android.provider.Settings.Secure;
29import android.text.TextUtils;
30import android.util.Log;
31import android.widget.Toast;
32
33import com.android.settings.R;
34import com.android.settings.SettingsPreferenceFragment;
35import com.android.settings.Utils;
36
37public class AdvancedWifiSettings extends SettingsPreferenceFragment
38        implements Preference.OnPreferenceChangeListener {
39
40    private static final String TAG = "AdvancedWifiSettings";
41    private static final String KEY_MAC_ADDRESS = "mac_address";
42    private static final String KEY_CURRENT_IP_ADDRESS = "current_ip_address";
43    private static final String KEY_FREQUENCY_BAND = "frequency_band";
44    private static final String KEY_NOTIFY_OPEN_NETWORKS = "notify_open_networks";
45    private static final String KEY_SLEEP_POLICY = "sleep_policy";
46    private static final String KEY_POOR_NETWORK_DETECTION = "wifi_poor_network_detection";
47
48    private WifiManager mWifiManager;
49
50    @Override
51    public void onCreate(Bundle savedInstanceState) {
52        super.onCreate(savedInstanceState);
53        addPreferencesFromResource(R.xml.wifi_advanced_settings);
54    }
55
56    @Override
57    public void onActivityCreated(Bundle savedInstanceState) {
58        super.onActivityCreated(savedInstanceState);
59        mWifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
60    }
61
62    @Override
63    public void onResume() {
64        super.onResume();
65        initPreferences();
66        refreshWifiInfo();
67    }
68
69    private void initPreferences() {
70        CheckBoxPreference notifyOpenNetworks =
71            (CheckBoxPreference) findPreference(KEY_NOTIFY_OPEN_NETWORKS);
72        notifyOpenNetworks.setChecked(Secure.getInt(getContentResolver(),
73                Secure.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON, 0) == 1);
74        notifyOpenNetworks.setEnabled(mWifiManager.isWifiEnabled());
75
76        CheckBoxPreference poorNetworkDetection =
77            (CheckBoxPreference) findPreference(KEY_POOR_NETWORK_DETECTION);
78        if (poorNetworkDetection != null) {
79            if (Utils.isWifiOnly(getActivity())) {
80                getPreferenceScreen().removePreference(poorNetworkDetection);
81            } else {
82                poorNetworkDetection.setChecked(Secure.getInt(getContentResolver(),
83                        Secure.WIFI_WATCHDOG_POOR_NETWORK_TEST_ENABLED, 1) == 1);
84            }
85        }
86
87        ListPreference frequencyPref = (ListPreference) findPreference(KEY_FREQUENCY_BAND);
88
89        if (mWifiManager.isDualBandSupported()) {
90            frequencyPref.setOnPreferenceChangeListener(this);
91            int value = mWifiManager.getFrequencyBand();
92            if (value != -1) {
93                frequencyPref.setValue(String.valueOf(value));
94            } else {
95                Log.e(TAG, "Failed to fetch frequency band");
96            }
97        } else {
98            if (frequencyPref != null) {
99                // null if it has already been removed before resume
100                getPreferenceScreen().removePreference(frequencyPref);
101            }
102        }
103
104        ListPreference sleepPolicyPref = (ListPreference) findPreference(KEY_SLEEP_POLICY);
105        if (sleepPolicyPref != null) {
106            if (Utils.isWifiOnly(getActivity())) {
107                sleepPolicyPref.setEntries(R.array.wifi_sleep_policy_entries_wifi_only);
108            }
109            sleepPolicyPref.setOnPreferenceChangeListener(this);
110            int value = Settings.System.getInt(getContentResolver(),
111                    Settings.System.WIFI_SLEEP_POLICY,
112                    Settings.System.WIFI_SLEEP_POLICY_NEVER);
113            String stringValue = String.valueOf(value);
114            sleepPolicyPref.setValue(stringValue);
115            updateSleepPolicySummary(sleepPolicyPref, stringValue);
116        }
117    }
118
119    private void updateSleepPolicySummary(Preference sleepPolicyPref, String value) {
120        if (value != null) {
121            String[] values = getResources().getStringArray(R.array.wifi_sleep_policy_values);
122            final int summaryArrayResId = Utils.isWifiOnly(getActivity()) ?
123                    R.array.wifi_sleep_policy_entries_wifi_only : R.array.wifi_sleep_policy_entries;
124            String[] summaries = getResources().getStringArray(summaryArrayResId);
125            for (int i = 0; i < values.length; i++) {
126                if (value.equals(values[i])) {
127                    if (i < summaries.length) {
128                        sleepPolicyPref.setSummary(summaries[i]);
129                        return;
130                    }
131                }
132            }
133        }
134
135        sleepPolicyPref.setSummary("");
136        Log.e(TAG, "Invalid sleep policy value: " + value);
137    }
138
139    @Override
140    public boolean onPreferenceTreeClick(PreferenceScreen screen, Preference preference) {
141        String key = preference.getKey();
142
143        if (KEY_NOTIFY_OPEN_NETWORKS.equals(key)) {
144            Secure.putInt(getContentResolver(),
145                    Secure.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON,
146                    ((CheckBoxPreference) preference).isChecked() ? 1 : 0);
147        } else if (KEY_POOR_NETWORK_DETECTION.equals(key)) {
148            Secure.putInt(getContentResolver(),
149                    Secure.WIFI_WATCHDOG_POOR_NETWORK_TEST_ENABLED,
150                    ((CheckBoxPreference) preference).isChecked() ? 1 : 0);
151        } else {
152            return super.onPreferenceTreeClick(screen, preference);
153        }
154        return true;
155    }
156
157    @Override
158    public boolean onPreferenceChange(Preference preference, Object newValue) {
159        String key = preference.getKey();
160
161        if (KEY_FREQUENCY_BAND.equals(key)) {
162            try {
163                mWifiManager.setFrequencyBand(Integer.parseInt((String) newValue), true);
164            } catch (NumberFormatException e) {
165                Toast.makeText(getActivity(), R.string.wifi_setting_frequency_band_error,
166                        Toast.LENGTH_SHORT).show();
167                return false;
168            }
169        }
170
171        if (KEY_SLEEP_POLICY.equals(key)) {
172            try {
173                String stringValue = (String) newValue;
174                Settings.System.putInt(getContentResolver(), Settings.System.WIFI_SLEEP_POLICY,
175                        Integer.parseInt(stringValue));
176                updateSleepPolicySummary(preference, stringValue);
177            } catch (NumberFormatException e) {
178                Toast.makeText(getActivity(), R.string.wifi_setting_sleep_policy_error,
179                        Toast.LENGTH_SHORT).show();
180                return false;
181            }
182        }
183
184        return true;
185    }
186
187    private void refreshWifiInfo() {
188        WifiInfo wifiInfo = mWifiManager.getConnectionInfo();
189
190        Preference wifiMacAddressPref = findPreference(KEY_MAC_ADDRESS);
191        String macAddress = wifiInfo == null ? null : wifiInfo.getMacAddress();
192        wifiMacAddressPref.setSummary(!TextUtils.isEmpty(macAddress) ? macAddress
193                : getActivity().getString(R.string.status_unavailable));
194
195        Preference wifiIpAddressPref = findPreference(KEY_CURRENT_IP_ADDRESS);
196        String ipAddress = Utils.getWifiIpAddresses(getActivity());
197        wifiIpAddressPref.setSummary(ipAddress == null ?
198                getActivity().getString(R.string.status_unavailable) : ipAddress);
199    }
200
201}
202