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 com.android.settings.R;
20 
21 import android.content.Context;
22 import android.net.wifi.WifiManager;
23 import android.net.wifi.p2p.WifiP2pDevice;
24 import android.preference.Preference;
25 import android.text.TextUtils;
26 import android.view.View;
27 import android.widget.ImageView;
28 
29 public class WifiP2pPeer extends Preference {
30 
31     private static final int[] STATE_SECURED = {R.attr.state_encrypted};
32     public WifiP2pDevice device;
33 
34     private final int mRssi;
35     private ImageView mSignal;
36 
37     private static final int SIGNAL_LEVELS = 4;
38 
WifiP2pPeer(Context context, WifiP2pDevice dev)39     public WifiP2pPeer(Context context, WifiP2pDevice dev) {
40         super(context);
41         device = dev;
42         setWidgetLayoutResource(R.layout.preference_widget_wifi_signal);
43         mRssi = 60; //TODO: fix
44     }
45 
46     @Override
onBindView(View view)47     protected void onBindView(View view) {
48         if (TextUtils.isEmpty(device.deviceName)) {
49             setTitle(device.deviceAddress);
50         } else {
51             setTitle(device.deviceName);
52         }
53         mSignal = (ImageView) view.findViewById(R.id.signal);
54         if (mRssi == Integer.MAX_VALUE) {
55             mSignal.setImageDrawable(null);
56         } else {
57             mSignal.setImageResource(R.drawable.wifi_signal_dark);
58             mSignal.setImageState(STATE_SECURED,  true);
59         }
60         refresh();
61         super.onBindView(view);
62     }
63 
64     @Override
compareTo(Preference preference)65     public int compareTo(Preference preference) {
66         if (!(preference instanceof WifiP2pPeer)) {
67             return 1;
68         }
69         WifiP2pPeer other = (WifiP2pPeer) preference;
70 
71         // devices go in the order of the status
72         if (device.status != other.device.status) {
73             return device.status < other.device.status ? -1 : 1;
74         }
75 
76         // Sort by name/address
77         if (device.deviceName != null) {
78             return device.deviceName.compareToIgnoreCase(other.device.deviceName);
79         }
80 
81         return device.deviceAddress.compareToIgnoreCase(other.device.deviceAddress);
82     }
83 
getLevel()84     int getLevel() {
85         if (mRssi == Integer.MAX_VALUE) {
86             return -1;
87         }
88         return WifiManager.calculateSignalLevel(mRssi, SIGNAL_LEVELS);
89     }
90 
refresh()91     private void refresh() {
92         if (mSignal == null) {
93             return;
94         }
95         Context context = getContext();
96         mSignal.setImageLevel(getLevel());
97         String[] statusArray = context.getResources().getStringArray(R.array.wifi_p2p_status);
98         setSummary(statusArray[device.status]);
99     }
100 }
101