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 package com.android.car.settings.wifi;
17 
18 import android.net.wifi.WifiManager;
19 import android.os.Bundle;
20 import android.provider.Settings;
21 
22 import androidx.annotation.NonNull;
23 import androidx.annotation.Nullable;
24 import androidx.annotation.XmlRes;
25 
26 import com.android.car.settings.R;
27 import com.android.car.settings.common.SettingsFragment;
28 import com.android.car.settings.search.CarBaseSearchIndexProvider;
29 import com.android.car.ui.toolbar.MenuItem;
30 import com.android.car.ui.toolbar.ProgressBarController;
31 import com.android.settingslib.search.SearchIndexable;
32 import com.android.settingslib.wifi.AccessPoint;
33 
34 import java.util.Collections;
35 import java.util.List;
36 
37 /**
38  * Main page to host Wifi related preferences.
39  */
40 @SearchIndexable
41 public class WifiSettingsFragment extends SettingsFragment
42         implements CarWifiManager.Listener {
43 
44     private static final int SEARCHING_DELAY_MILLIS = 1700;
45     private static final String EXTRA_CONNECTED_ACCESS_POINT_KEY = "connected_access_point_key";
46 
47     private CarWifiManager mCarWifiManager;
48     private ProgressBarController mProgressBar;
49     private MenuItem mWifiSwitch;
50     @Nullable
51     private String mConnectedAccessPointKey;
52 
53     @Override
getToolbarMenuItems()54     public List<MenuItem> getToolbarMenuItems() {
55         return Collections.singletonList(mWifiSwitch);
56     }
57 
58     @Override
59     @XmlRes
getPreferenceScreenResId()60     protected int getPreferenceScreenResId() {
61         return R.xml.wifi_list_fragment;
62     }
63 
64     @Override
onCreate(Bundle savedInstanceState)65     public void onCreate(Bundle savedInstanceState) {
66         super.onCreate(savedInstanceState);
67         mCarWifiManager = new CarWifiManager(getContext());
68 
69         mWifiSwitch = new MenuItem.Builder(getContext())
70                 .setCheckable()
71                 .setChecked(mCarWifiManager.isWifiEnabled())
72                 .setOnClickListener(i -> {
73                     if (mWifiSwitch.isChecked() != mCarWifiManager.isWifiEnabled()) {
74                         mCarWifiManager.setWifiEnabled(mWifiSwitch.isChecked());
75                     }
76                 })
77                 .build();
78 
79         if (savedInstanceState != null) {
80             mConnectedAccessPointKey = savedInstanceState.getString(
81                     EXTRA_CONNECTED_ACCESS_POINT_KEY);
82         }
83     }
84 
85     @Override
onSaveInstanceState(@onNull Bundle outState)86     public void onSaveInstanceState(@NonNull Bundle outState) {
87         super.onSaveInstanceState(outState);
88         outState.putString(EXTRA_CONNECTED_ACCESS_POINT_KEY, mConnectedAccessPointKey);
89     }
90 
91     @Override
onActivityCreated(Bundle savedInstanceState)92     public void onActivityCreated(Bundle savedInstanceState) {
93         super.onActivityCreated(savedInstanceState);
94 
95         mProgressBar = getToolbar().getProgressBar();
96     }
97 
98     @Override
onStart()99     public void onStart() {
100         super.onStart();
101         mCarWifiManager.addListener(this);
102         mCarWifiManager.start();
103         onWifiStateChanged(mCarWifiManager.getWifiState());
104     }
105 
106     @Override
onStop()107     public void onStop() {
108         super.onStop();
109         mCarWifiManager.removeListener(this);
110         mCarWifiManager.stop();
111         mProgressBar.setVisible(false);
112     }
113 
114     @Override
onDestroy()115     public void onDestroy() {
116         super.onDestroy();
117         mCarWifiManager.destroy();
118     }
119 
120     @Override
onAccessPointsChanged()121     public void onAccessPointsChanged() {
122         mProgressBar.setVisible(true);
123         getView().postDelayed(() -> mProgressBar.setVisible(false), SEARCHING_DELAY_MILLIS);
124         AccessPoint connectedAccessPoint = mCarWifiManager.getConnectedAccessPoint();
125         if (connectedAccessPoint != null) {
126             String connectedAccessPointKey = connectedAccessPoint.getKey();
127             if (!connectedAccessPointKey.equals(mConnectedAccessPointKey)) {
128                 scrollToPreference(connectedAccessPointKey);
129                 mConnectedAccessPointKey = connectedAccessPointKey;
130             }
131         } else {
132             mConnectedAccessPointKey = null;
133         }
134     }
135 
136     @Override
onWifiStateChanged(int state)137     public void onWifiStateChanged(int state) {
138         mWifiSwitch.setChecked(mCarWifiManager.isWifiEnabled());
139         switch (state) {
140             case WifiManager.WIFI_STATE_ENABLING:
141                 mProgressBar.setVisible(true);
142                 break;
143             default:
144                 mProgressBar.setVisible(false);
145         }
146     }
147 
148     /**
149      * Data provider for Settings Search.
150      */
151     public static final CarBaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
152             new CarBaseSearchIndexProvider(R.xml.wifi_list_fragment, Settings.ACTION_WIFI_SETTINGS);
153 }
154