content: /*
   * Copyright (C) 2011 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package com.example.android.wifidirect;
  
  import android.content.BroadcastReceiver;
  import android.content.Context;
  import android.content.Intent;
  import android.net.NetworkInfo;
  import android.net.wifi.p2p.WifiP2pDevice;
  import android.net.wifi.p2p.WifiP2pManager;
  import android.net.wifi.p2p.WifiP2pManager.Channel;
  import android.net.wifi.p2p.WifiP2pManager.PeerListListener;
  import android.util.Log;
  
  /**
   * A BroadcastReceiver that notifies of important wifi p2p events.
   */
  public class WiFiDirectBroadcastReceiver extends BroadcastReceiver {
  
      private WifiP2pManager manager;
      private Channel channel;
      private WiFiDirectActivity activity;
  
      /**
       * @param manager WifiP2pManager system service
       * @param channel Wifi p2p channel
       * @param activity activity associated with the receiver
       */
      public WiFiDirectBroadcastReceiver(WifiP2pManager manager, Channel channel,
              WiFiDirectActivity activity) {
          super();
          this.manager = manager;
          this.channel = channel;
          this.activity = activity;
      }
  
      /*
       * (non-Javadoc)
       * @see android.content.BroadcastReceiver#onReceive(android.content.Context,
       * android.content.Intent)
       */
      @Override
      public void onReceive(Context context, Intent intent) {
          String action = intent.getAction();
          if (WifiP2pManager.WIFI_P2P_STATE_CHANGED_ACTION.equals(action)) {
  
              // UI update to indicate wifi p2p status.
              int state = intent.getIntExtra(WifiP2pManager.EXTRA_WIFI_STATE, -1);
              if (state == WifiP2pManager.WIFI_P2P_STATE_ENABLED) {
                  // Wifi Direct mode is enabled
                  activity.setIsWifiP2pEnabled(true);
              } else {
                  activity.setIsWifiP2pEnabled(false);
                  activity.resetData();
  
              }
              Log.d(WiFiDirectActivity.TAG, "P2P state changed - " + state);
          } else if (WifiP2pManager.WIFI_P2P_PEERS_CHANGED_ACTION.equals(action)) {
  
              // request available peers from the wifi p2p manager. This is an
              // asynchronous call and the calling activity is notified with a
              // callback on PeerListListener.onPeersAvailable()
              if (manager != null) {
                  manager.requestPeers(channel, (PeerListListener) activity.getFragmentManager()
                          .findFragmentById(R.id.frag_list));
              }
              Log.d(WiFiDirectActivity.TAG, "P2P peers changed");
          } else if (WifiP2pManager.WIFI_P2P_CONNECTION_CHANGED_ACTION.equals(action)) {
  
              if (manager == null) {
                  return;
              }
  
              NetworkInfo networkInfo = (NetworkInfo) intent
                      .getParcelableExtra(WifiP2pManager.EXTRA_NETWORK_INFO);
  
              if (networkInfo.isConnected()) {
  
                  // we are connected with the other device, request connection
                  // info to find group owner IP
  
                  DeviceDetailFragment fragment = (DeviceDetailFragment) activity
                          .getFragmentManager().findFragmentById(R.id.frag_detail);
                  manager.requestConnectionInfo(channel, fragment);
              } else {
                  // It's a disconnect
                  activity.resetData();
              }
          } else if (WifiP2pManager.WIFI_P2P_THIS_DEVICE_CHANGED_ACTION.equals(action)) {
              DeviceListFragment fragment = (DeviceListFragment) activity.getFragmentManager()
                      .findFragmentById(R.id.frag_list);
              fragment.updateThisDevice((WifiP2pDevice) intent.getParcelableExtra(
                      WifiP2pManager.EXTRA_WIFI_P2P_DEVICE));
  
          }
      }
  }
  