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      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.WifiP2pManager;
     24 import android.net.wifi.p2p.WifiP2pDevice;
     25 import android.preference.Preference;
     26 import android.text.TextUtils;
     27 import android.view.View;
     28 import android.widget.ImageView;
     29 
     30 import java.util.Comparator;
     31 
     32 public class WifiP2pPeer extends Preference {
     33 
     34     private static final int[] STATE_SECURED = {R.attr.state_encrypted};
     35     public WifiP2pDevice device;
     36 
     37     private int mRssi;
     38     private ImageView mSignal;
     39 
     40     private static final int SIGNAL_LEVELS = 4;
     41 
     42     public WifiP2pPeer(Context context, WifiP2pDevice dev) {
     43         super(context);
     44         device = dev;
     45         setWidgetLayoutResource(R.layout.preference_widget_wifi_signal);
     46         mRssi = 60; //TODO: fix
     47     }
     48 
     49     @Override
     50     protected void onBindView(View view) {
     51         if (TextUtils.isEmpty(device.deviceName)) {
     52             setTitle(device.deviceAddress);
     53         } else {
     54             setTitle(device.deviceName);
     55         }
     56         mSignal = (ImageView) view.findViewById(R.id.signal);
     57         if (mRssi == Integer.MAX_VALUE) {
     58             mSignal.setImageDrawable(null);
     59         } else {
     60             mSignal.setImageResource(R.drawable.wifi_signal);
     61             mSignal.setImageState(STATE_SECURED,  true);
     62         }
     63         refresh();
     64         super.onBindView(view);
     65     }
     66 
     67     @Override
     68     public int compareTo(Preference preference) {
     69         if (!(preference instanceof WifiP2pPeer)) {
     70             return 1;
     71         }
     72         WifiP2pPeer other = (WifiP2pPeer) preference;
     73 
     74         // devices go in the order of the status
     75         if (device.status != other.device.status) {
     76             return device.status < other.device.status ? -1 : 1;
     77         }
     78 
     79         // Sort by name/address
     80         if (device.deviceName != null) {
     81             return device.deviceName.compareToIgnoreCase(other.device.deviceName);
     82         }
     83 
     84         return device.deviceAddress.compareToIgnoreCase(other.device.deviceAddress);
     85     }
     86 
     87     int getLevel() {
     88         if (mRssi == Integer.MAX_VALUE) {
     89             return -1;
     90         }
     91         return WifiManager.calculateSignalLevel(mRssi, SIGNAL_LEVELS);
     92     }
     93 
     94     private void refresh() {
     95         if (mSignal == null) {
     96             return;
     97         }
     98         Context context = getContext();
     99         mSignal.setImageLevel(getLevel());
    100         String[] statusArray = context.getResources().getStringArray(R.array.wifi_p2p_status);
    101         setSummary(statusArray[device.status]);
    102     }
    103 }
    104