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      1 package com.android.nfc.beam;
      2 
      3 import android.content.BroadcastReceiver;
      4 import android.content.Context;
      5 import android.content.Intent;
      6 import android.content.IntentFilter;
      7 import android.net.Uri;
      8 import android.util.Log;
      9 
     10 import java.io.File;
     11 
     12 /**
     13  * @hide
     14  */
     15 public class BeamStatusReceiver extends BroadcastReceiver {
     16     private static final boolean DBG = true;
     17     private static final String TAG = "BeamStatusReceiver";
     18 
     19     private static final String ACTION_HANDOVER_STARTED =
     20             "android.nfc.handover.intent.action.HANDOVER_STARTED";
     21 
     22     private static final String ACTION_TRANSFER_PROGRESS =
     23             "android.nfc.handover.intent.action.TRANSFER_PROGRESS";
     24 
     25     private static final String ACTION_TRANSFER_DONE =
     26             "android.nfc.handover.intent.action.TRANSFER_DONE";
     27 
     28     private static final String EXTRA_HANDOVER_DATA_LINK_TYPE =
     29             "android.nfc.handover.intent.extra.HANDOVER_DATA_LINK_TYPE";
     30 
     31 
     32     private static final String EXTRA_TRANSFER_PROGRESS =
     33             "android.nfc.handover.intent.extra.TRANSFER_PROGRESS";
     34 
     35     private static final String EXTRA_TRANSFER_URI =
     36             "android.nfc.handover.intent.extra.TRANSFER_URI";
     37 
     38     private static final String EXTRA_OBJECT_COUNT =
     39             "android.nfc.handover.intent.extra.OBJECT_COUNT";
     40 
     41     private static final String EXTRA_TRANSFER_STATUS =
     42             "android.nfc.handover.intent.extra.TRANSFER_STATUS";
     43 
     44     private static final String EXTRA_TRANSFER_MIMETYPE =
     45             "android.nfc.handover.intent.extra.TRANSFER_MIME_TYPE";
     46 
     47     private static final String ACTION_STOP_BLUETOOTH_TRANSFER =
     48             "android.btopp.intent.action.STOP_HANDOVER_TRANSFER";
     49 
     50     // FIXME: Needs to stay in sync with com.android.bluetooth.opp.Constants
     51     private static final int HANDOVER_TRANSFER_STATUS_SUCCESS = 0;
     52     private static final int HANDOVER_TRANSFER_STATUS_FAILURE = 1;
     53 
     54     // permission needed to be able to receive handover status requests
     55     public static final String BEAM_STATUS_PERMISSION =
     56             "android.permission.NFC_HANDOVER_STATUS";
     57 
     58     // Needed to build cancel intent in Beam notification
     59     public static final String EXTRA_INCOMING =
     60             "com.android.nfc.handover.extra.INCOMING";
     61 
     62     public static final String EXTRA_TRANSFER_ID =
     63             "android.nfc.handover.intent.extra.TRANSFER_ID";
     64 
     65     public static final String EXTRA_ADDRESS =
     66             "android.nfc.handover.intent.extra.ADDRESS";
     67 
     68     public static final String ACTION_CANCEL_HANDOVER_TRANSFER =
     69             "com.android.nfc.handover.action.CANCEL_HANDOVER_TRANSFER";
     70 
     71     public static final int DIRECTION_INCOMING = 0;
     72     public static final int DIRECTION_OUTGOING = 1;
     73 
     74     private final Context mContext;
     75     private final BeamTransferManager mTransferManager;
     76 
     77     BeamStatusReceiver(Context context, BeamTransferManager transferManager) {
     78         mContext = context;
     79         mTransferManager = transferManager;
     80     }
     81 
     82     @Override
     83     public void onReceive(Context context, Intent intent) {
     84         String action = intent.getAction();
     85         int dataLinkType = intent.getIntExtra(EXTRA_HANDOVER_DATA_LINK_TYPE,
     86                 BeamTransferManager.DATA_LINK_TYPE_BLUETOOTH);
     87 
     88         if (ACTION_CANCEL_HANDOVER_TRANSFER.equals(action)) {
     89             if (mTransferManager != null) {
     90                 mTransferManager.cancel();
     91             }
     92         } else if (ACTION_TRANSFER_PROGRESS.equals(action) ||
     93                 ACTION_TRANSFER_DONE.equals(action) ||
     94                 ACTION_HANDOVER_STARTED.equals(action)) {
     95             handleTransferEvent(intent, dataLinkType);
     96         }
     97     }
     98 
     99     public IntentFilter getIntentFilter() {
    100         IntentFilter filter = new IntentFilter(ACTION_TRANSFER_DONE);
    101         filter.addAction(ACTION_TRANSFER_PROGRESS);
    102         filter.addAction(ACTION_CANCEL_HANDOVER_TRANSFER);
    103         filter.addAction(ACTION_HANDOVER_STARTED);
    104         return filter;
    105     }
    106 
    107     private void handleTransferEvent(Intent intent, int deviceType) {
    108         String action = intent.getAction();
    109         int id = intent.getIntExtra(EXTRA_TRANSFER_ID, -1);
    110 
    111         String sourceAddress = intent.getStringExtra(EXTRA_ADDRESS);
    112 
    113         if (sourceAddress == null) return;
    114 
    115         if (mTransferManager == null) {
    116             // There is no transfer running for this source address; most likely
    117             // the transfer was cancelled. We need to tell BT OPP to stop transferring.
    118             if (id != -1) {
    119                 if (deviceType == BeamTransferManager.DATA_LINK_TYPE_BLUETOOTH) {
    120                     if (DBG) Log.d(TAG, "Didn't find transfer, stopping");
    121                     Intent cancelIntent = new Intent(ACTION_STOP_BLUETOOTH_TRANSFER);
    122                     cancelIntent.putExtra(EXTRA_TRANSFER_ID, id);
    123                     mContext.sendBroadcast(cancelIntent);
    124                 }
    125             }
    126             return;
    127         }
    128 
    129         mTransferManager.setBluetoothTransferId(id);
    130 
    131         if (action.equals(ACTION_TRANSFER_DONE)) {
    132             int handoverStatus = intent.getIntExtra(EXTRA_TRANSFER_STATUS,
    133                     HANDOVER_TRANSFER_STATUS_FAILURE);
    134             if (handoverStatus == HANDOVER_TRANSFER_STATUS_SUCCESS) {
    135                 String uriString = intent.getStringExtra(EXTRA_TRANSFER_URI);
    136                 String mimeType = intent.getStringExtra(EXTRA_TRANSFER_MIMETYPE);
    137                 Uri uri = Uri.parse(uriString);
    138                 if (uri != null && uri.getScheme() == null) {
    139                     uri = Uri.fromFile(new File(uri.getPath()));
    140                 }
    141                 mTransferManager.finishTransfer(true, uri, mimeType);
    142             } else {
    143                 mTransferManager.finishTransfer(false, null, null);
    144             }
    145         } else if (action.equals(ACTION_TRANSFER_PROGRESS)) {
    146             float progress = intent.getFloatExtra(EXTRA_TRANSFER_PROGRESS, 0.0f);
    147             mTransferManager.updateFileProgress(progress);
    148         } else if (action.equals(ACTION_HANDOVER_STARTED)) {
    149             int count = intent.getIntExtra(EXTRA_OBJECT_COUNT, 0);
    150             if (count > 0) {
    151                 mTransferManager.setObjectCount(count);
    152             }
    153         }
    154     }
    155 }
    156