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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.nfc;
     18 
     19 import android.app.NotificationManager;
     20 import android.content.Context;
     21 import android.content.SharedPreferences;
     22 import android.media.AudioManager;
     23 import android.media.SoundPool;
     24 import android.os.Handler;
     25 import android.os.Message;
     26 import android.os.Vibrator;
     27 import com.android.nfc3.R;
     28 
     29 /**
     30  * Manages vibration, sound and animation for P2P events.
     31  */
     32 public class P2pEventManager implements P2pEventListener, SendUi.Callback {
     33     static final String TAG = "NfcP2pEventManager";
     34     static final boolean DBG = true;
     35 
     36     static final long[] VIBRATION_PATTERN = {0, 100, 10000};
     37 
     38     final Context mContext;
     39     final P2pEventListener.Callback mCallback;
     40     final int mStartSound;
     41     final int mEndSound;
     42     final int mErrorSound;
     43     final SoundPool mSoundPool; // playback synchronized on this
     44     final Vibrator mVibrator;
     45     final NotificationManager mNotificationManager;
     46     final SendUi mSendUi;
     47 
     48     // only used on UI thread
     49     boolean mSending;
     50     boolean mNdefSent;
     51     boolean mNdefReceived;
     52 
     53     public P2pEventManager(Context context, P2pEventListener.Callback callback) {
     54         mContext = context;
     55         mCallback = callback;
     56         mSoundPool = new SoundPool(1, AudioManager.STREAM_NOTIFICATION, 0);
     57         mStartSound = mSoundPool.load(mContext, R.raw.start, 1);
     58         mEndSound = mSoundPool.load(mContext, R.raw.end, 1);
     59         mErrorSound = mSoundPool.load(mContext, R.raw.error, 1);
     60         mVibrator = (Vibrator) context.getSystemService(Context.VIBRATOR_SERVICE);
     61         mNotificationManager = (NotificationManager) mContext.getSystemService(
     62                 Context.NOTIFICATION_SERVICE);
     63 
     64         mSending = false;
     65         mSendUi = new SendUi(context, this);
     66     }
     67 
     68     @Override
     69     public void onP2pInRange() {
     70         playSound(mStartSound);
     71         mNdefSent = false;
     72         mNdefReceived = false;
     73 
     74         mVibrator.vibrate(VIBRATION_PATTERN, -1);
     75         mSendUi.takeScreenshot();
     76     }
     77 
     78     @Override
     79     public void onP2pSendConfirmationRequested() {
     80         mSendUi.showPreSend();
     81     }
     82 
     83     @Override
     84     public void onP2pSendComplete() {
     85         playSound(mEndSound);
     86         mVibrator.vibrate(VIBRATION_PATTERN, -1);
     87         mSendUi.showPostSend();
     88         mSending = false;
     89         mNdefSent = true;
     90     }
     91 
     92     @Override
     93     public void onP2pReceiveComplete() {
     94         mVibrator.vibrate(VIBRATION_PATTERN, -1);
     95         playSound(mEndSound);
     96         // TODO we still don't have a nice receive solution
     97         // The sanest solution right now is just to scale back up what we had
     98         // and start the new activity. It is not perfect, but at least it is
     99         // consistent behavior. All other variants involve making the old
    100         // activity screenshot disappear, and then removing the animation
    101         // window hoping the new activity has started by then. This just goes
    102         // wrong too often and can looks weird.
    103         mSendUi.finish(SendUi.FINISH_SCALE_UP);
    104         mNdefReceived = true;
    105     }
    106 
    107     @Override
    108     public void onP2pOutOfRange() {
    109         if (mSending) {
    110             playSound(mErrorSound);
    111             mSending = false;
    112         }
    113         mSendUi.finish(SendUi.FINISH_SCALE_UP);
    114     }
    115 
    116     @Override
    117     public void onSendConfirmed() {
    118         if (!mSending) {
    119             mSendUi.showStartSend();
    120             mCallback.onP2pSendConfirmed();
    121         }
    122         mSending = true;
    123 
    124     }
    125 
    126     void playSound(int sound) {
    127         mSoundPool.play(sound, 1.0f, 1.0f, 0, 0, 1.0f);
    128     }
    129 }
    130