| /* |
| * Copyright (C) 2008 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.android.nfc.beam; |
| |
| import com.android.nfc.NfcService; |
| import com.android.nfc.R; |
| import com.android.nfc.handover.HandoverDataParser; |
| |
| import android.bluetooth.BluetoothDevice; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.net.Uri; |
| import android.os.Handler; |
| import android.os.Looper; |
| import android.os.Message; |
| import android.os.Messenger; |
| import android.os.UserHandle; |
| import android.util.Log; |
| |
| /** |
| * Manager for starting and stopping Beam transfers. Prevents more than one transfer from |
| * happening at a time. |
| */ |
| public class BeamManager implements Handler.Callback { |
| private static final String TAG = "BeamManager"; |
| private static final boolean DBG = false; |
| |
| private static final String ACTION_WHITELIST_DEVICE = |
| "android.btopp.intent.action.WHITELIST_DEVICE"; |
| public static final int MSG_BEAM_COMPLETE = 0; |
| |
| private final Object mLock; |
| |
| private boolean mBeamInProgress; |
| private final Handler mCallback; |
| |
| private NfcService mNfcService; |
| |
| private static final class Singleton { |
| public static final BeamManager INSTANCE = new BeamManager(); |
| } |
| |
| private BeamManager() { |
| mLock = new Object(); |
| mBeamInProgress = false; |
| mCallback = new Handler(Looper.getMainLooper(), this); |
| mNfcService = NfcService.getInstance(); |
| } |
| |
| public static BeamManager getInstance() { |
| return Singleton.INSTANCE; |
| } |
| |
| public boolean isBeamInProgress() { |
| synchronized (mLock) { |
| return mBeamInProgress; |
| } |
| } |
| |
| public boolean startBeamReceive(Context context, |
| HandoverDataParser.BluetoothHandoverData handoverData) { |
| synchronized (mLock) { |
| if (mBeamInProgress) { |
| return false; |
| } else { |
| mBeamInProgress = true; |
| } |
| } |
| |
| BeamTransferRecord transferRecord = |
| BeamTransferRecord.forBluetoothDevice( |
| handoverData.device, handoverData.carrierActivating, null); |
| |
| Intent receiveIntent = new Intent(context.getApplicationContext(), |
| BeamReceiveService.class); |
| receiveIntent.putExtra(BeamReceiveService.EXTRA_BEAM_TRANSFER_RECORD, transferRecord); |
| receiveIntent.putExtra(BeamReceiveService.EXTRA_BEAM_COMPLETE_CALLBACK, |
| new Messenger(mCallback)); |
| whitelistOppDevice(context, handoverData.device); |
| context.startServiceAsUser(receiveIntent, UserHandle.CURRENT); |
| return true; |
| } |
| |
| public boolean startBeamSend(Context context, |
| HandoverDataParser.BluetoothHandoverData outgoingHandoverData, |
| Uri[] uris, UserHandle userHandle) { |
| synchronized (mLock) { |
| if (mBeamInProgress) { |
| return false; |
| } else { |
| mBeamInProgress = true; |
| } |
| } |
| |
| BeamTransferRecord transferRecord = BeamTransferRecord.forBluetoothDevice( |
| outgoingHandoverData.device, outgoingHandoverData.carrierActivating, |
| uris); |
| Intent sendIntent = new Intent(context.getApplicationContext(), |
| BeamSendService.class); |
| sendIntent.putExtra(BeamSendService.EXTRA_BEAM_TRANSFER_RECORD, transferRecord); |
| sendIntent.putExtra(BeamSendService.EXTRA_BEAM_COMPLETE_CALLBACK, |
| new Messenger(mCallback)); |
| context.startServiceAsUser(sendIntent, userHandle); |
| return true; |
| } |
| |
| @Override |
| public boolean handleMessage(Message msg) { |
| if (msg.what == MSG_BEAM_COMPLETE) { |
| synchronized (mLock) { |
| mBeamInProgress = false; |
| } |
| |
| boolean success = msg.arg1 == 1; |
| if (success) { |
| mNfcService.playSound(NfcService.SOUND_END); |
| } |
| return true; |
| } |
| return false; |
| } |
| |
| void whitelistOppDevice(Context context, BluetoothDevice device) { |
| if (DBG) Log.d(TAG, "Whitelisting " + device + " for BT OPP"); |
| Intent intent = new Intent(ACTION_WHITELIST_DEVICE); |
| intent.setPackage(context.getString(R.string.bluetooth_package)); |
| intent.putExtra(BluetoothDevice.EXTRA_DEVICE, device); |
| intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); |
| context.sendBroadcastAsUser(intent, UserHandle.CURRENT); |
| } |
| |
| } |