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 
17 package com.android.settings.wifi.p2p;
18 
19 import android.content.Context;
20 import android.net.wifi.WifiManager;
21 import android.net.wifi.p2p.WifiP2pDevice;
22 import android.text.TextUtils;
23 import android.widget.ImageView;
24 
25 import androidx.annotation.VisibleForTesting;
26 import androidx.preference.Preference;
27 import androidx.preference.PreferenceViewHolder;
28 
29 import com.android.settings.R;
30 
31 public class WifiP2pPeer extends Preference {
32 
33     private static final int FIXED_RSSI = 60;
34     private static final int[] STATE_SECURED = {com.android.settingslib.R.attr.state_encrypted};
35     public WifiP2pDevice device;
36 
37     @VisibleForTesting final int mRssi;
38     private ImageView mSignal;
39 
40     @VisibleForTesting
41     static final int SIGNAL_LEVELS = 4;
42 
WifiP2pPeer(Context context, WifiP2pDevice dev)43     public WifiP2pPeer(Context context, WifiP2pDevice dev) {
44         super(context);
45         device = dev;
46         setWidgetLayoutResource(R.layout.preference_widget_wifi_signal);
47         mRssi = FIXED_RSSI; //TODO: fix
48         if (TextUtils.isEmpty(device.deviceName)) {
49             setTitle(device.deviceAddress);
50         } else {
51             setTitle(device.deviceName);
52         }
53         String[] statusArray = context.getResources().getStringArray(R.array.wifi_p2p_status);
54         setSummary(statusArray[device.status]);
55     }
56 
57     @Override
onBindViewHolder(PreferenceViewHolder view)58     public void onBindViewHolder(PreferenceViewHolder view) {
59         super.onBindViewHolder(view);
60         mSignal = (ImageView) view.findViewById(R.id.signal);
61         if (mRssi == Integer.MAX_VALUE) {
62             mSignal.setImageDrawable(null);
63         } else {
64             mSignal.setImageResource(R.drawable.wifi_signal);
65             mSignal.setImageState(STATE_SECURED,  true);
66         }
67         mSignal.setImageLevel(getLevel());
68     }
69 
70     @Override
compareTo(Preference preference)71     public int compareTo(Preference preference) {
72         if (!(preference instanceof WifiP2pPeer)) {
73             return 1;
74         }
75         WifiP2pPeer other = (WifiP2pPeer) preference;
76 
77         // devices go in the order of the status
78         if (device.status != other.device.status) {
79             return device.status < other.device.status ? -1 : 1;
80         }
81 
82         // Sort by name/address
83         if (device.deviceName != null) {
84             return device.deviceName.compareToIgnoreCase(other.device.deviceName);
85         }
86 
87         return device.deviceAddress.compareToIgnoreCase(other.device.deviceAddress);
88     }
89 
getLevel()90     int getLevel() {
91         if (mRssi == Integer.MAX_VALUE) {
92             return -1;
93         }
94         return WifiManager.calculateSignalLevel(mRssi, SIGNAL_LEVELS);
95     }
96 }
97