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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.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 
     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
     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
     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 
     84     int getLevel() {
     85         if (mRssi == Integer.MAX_VALUE) {
     86             return -1;
     87         }
     88         return WifiManager.calculateSignalLevel(mRssi, SIGNAL_LEVELS);
     89     }
     90 
     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