package org.thoughtcrime.securesms.audio;
import android.content.Context;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.os.Build;
import android.os.Handler;
import android.os.Message;
import android.os.PowerManager;
import android.os.PowerManager.WakeLock;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.util.Log;
import android.util.Pair;
import android.widget.Toast;
import org.thoughtcrime.securesms.R;
import org.thoughtcrime.securesms.attachments.AttachmentServer;
import org.thoughtcrime.securesms.crypto.MasterSecret;
import org.thoughtcrime.securesms.mms.AudioSlide;
import org.thoughtcrime.securesms.util.ServiceUtil;
import org.thoughtcrime.securesms.util.Util;
import org.whispersystems.libsignal.util.guava.Optional;
import java.io.IOException;
import java.lang.ref.WeakReference;
public class AudioSlidePlayer implements SensorEventListener {
private static final String TAG = AudioSlidePlayer.class.getSimpleName();
private static @NonNull Optional<AudioSlidePlayer> playing = Optional.absent();
private final @NonNull Context context;
private final @NonNull MasterSecret masterSecret;
private final @NonNull AudioSlide slide;
private final @NonNull Handler progressEventHandler;
private final @NonNull AudioManager audioManager;
private final @NonNull SensorManager sensorManager;
private final @NonNull Sensor proximitySensor;
private final @Nullable WakeLock wakeLock;
private @NonNull WeakReference<Listener> listener;
private @Nullable MediaPlayerWrapper mediaPlayer;
private @Nullable AttachmentServer audioAttachmentServer;
private long startTime;
public synchronized static AudioSlidePlayer createFor(@NonNull Context context,
@NonNull MasterSecret masterSecret,
@NonNull AudioSlide slide,
@NonNull Listener listener)
{
if (playing.isPresent() && playing.get().getAudioSlide().equals(slide)) {
playing.get().setListener(listener);
return playing.get();
} else {
return new AudioSlidePlayer(context, masterSecret, slide, listener);
}
}
private AudioSlidePlayer(@NonNull Context context,
@NonNull MasterSecret masterSecret,
@NonNull AudioSlide slide,
@NonNull Listener listener)
{
this.context = context;
this.masterSecret = masterSecret;
this.slide = slide;
this.listener = new WeakReference<>(listener);
this.progressEventHandler = new ProgressEventHandler(this);
this.audioManager = (AudioManager)context.getSystemService(Context.AUDIO_SERVICE);
this.sensorManager = (SensorManager)context.getSystemService(Context.SENSOR_SERVICE);
this.proximitySensor = sensorManager.getDefaultSensor(Sensor.TYPE_PROXIMITY);
if (Build.VERSION.SDK_INT >= 21) {
this.wakeLock = ServiceUtil.getPowerManager(context).newWakeLock(PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK, TAG);
} else {
this.wakeLock = null;
}
}
public void play(final double progress) throws IOException {
play(progress, false);
}
private void play(final double progress, boolean earpiece) throws IOException {
if (this.mediaPlayer != null) return;
this.mediaPlayer = new MediaPlayerWrapper();
this.audioAttachmentServer = new AttachmentServer(context, masterSecret, slide.asAttachment());
this.startTime = System.currentTimeMillis();
audioAttachmentServer.start();
mediaPlayer.setDataSource(context, audioAttachmentServer.getUri());
mediaPlayer.setAudioStreamType(earpiece ? AudioManager.STREAM_VOICE_CALL : AudioManager.STREAM_MUSIC);
mediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
@Override
public void onPrepared(MediaPlayer mp) {
Log.w(TAG, "onPrepared");
synchronized (AudioSlidePlayer.this) {
if (mediaPlayer == null) return;
if (progress > 0) {
mediaPlayer.seekTo((int) (mediaPlayer.getDuration() * progress));
}
sensorManager.registerListener(AudioSlidePlayer.this, proximitySensor, SensorManager.SENSOR_DELAY_NORMAL);
mediaPlayer.start();
setPlaying(AudioSlidePlayer.this);
}
notifyOnStart();
progressEventHandler.sendEmptyMessage(0);
}
});
mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
@Override
public void onCompletion(MediaPlayer mp) {
Log.w(TAG, "onComplete");
synchronized (AudioSlidePlayer.this) {
mediaPlayer = null;
if (audioAttachmentServer != null) {
audioAttachmentServer.stop();
audioAttachmentServer = null;
}
sensorManager.unregisterListener(AudioSlidePlayer.this);
if (wakeLock != null && wakeLock.isHeld()) wakeLock.release();
}
notifyOnStop();
progressEventHandler.removeMessages(0);
}
});
mediaPlayer.setOnErrorListener(new MediaPlayer.OnErrorListener() {
@Override
public boolean onError(MediaPlayer mp, int what, int extra) {
Log.w(TAG, "MediaPlayer Error: " + what + " , " + extra);
Toast.makeText(context, R.string.AudioSlidePlayer_error_playing_audio, Toast.LENGTH_SHORT).show();
synchronized (AudioSlidePlayer.this) {
mediaPlayer = null;
if (audioAttachmentServer != null) {
audioAttachmentServer.stop();
audioAttachmentServer = null;
}
sensorManager.unregisterListener(AudioSlidePlayer.this);
if (wakeLock != null && wakeLock.isHeld()) wakeLock.release();
}
notifyOnStop();
progressEventHandler.removeMessages(0);
return true;
}
});
mediaPlayer.prepareAsync();
}
public synchronized void stop() {
Log.w(TAG, "Stop called!");
removePlaying(this);
if (this.mediaPlayer != null) {
this.mediaPlayer.stop();
this.mediaPlayer.release();
}
if (this.audioAttachmentServer != null) {
this.audioAttachmentServer.stop();
}
sensorManager.unregisterListener(AudioSlidePlayer.this);
this.mediaPlayer = null;
this.audioAttachmentServer = null;
}
public synchronized static void stopAll() {
if (playing.isPresent()) {
playing.get().stop();
}
}
public void setListener(@NonNull Listener listener) {
this.listener = new WeakReference<>(listener);
if (this.mediaPlayer != null && this.mediaPlayer.isPlaying()) {
notifyOnStart();
}
}
public @NonNull AudioSlide getAudioSlide() {
return slide;
}
private Pair<Double, Integer> getProgress() {
if (mediaPlayer == null || mediaPlayer.getCurrentPosition() <= 0 || mediaPlayer.getDuration() <= 0) {
return new Pair<>(0D, 0);
} else {
return new Pair<>((double) mediaPlayer.getCurrentPosition() / (double) mediaPlayer.getDuration(),
mediaPlayer.getCurrentPosition());
}
}
private void notifyOnStart() {
Util.runOnMain(new Runnable() {
@Override
public void run() {
getListener().onStart();
}
});
}
private void notifyOnStop() {
Util.runOnMain(new Runnable() {
@Override
public void run() {
getListener().onStop();
}
});
}
private void notifyOnProgress(final double progress, final long millis) {
Util.runOnMain(new Runnable() {
@Override
public void run() {
getListener().onProgress(progress, millis);
}
});
}
private @NonNull Listener getListener() {
Listener listener = this.listener.get();
if (listener != null) return listener;
else return new Listener() {
@Override
public void onStart() {}
@Override
public void onStop() {}
@Override
public void onProgress(double progress, long millis) {}
};
}
private synchronized static void setPlaying(@NonNull AudioSlidePlayer player) {
if (playing.isPresent() && playing.get() != player) {
playing.get().notifyOnStop();
playing.get().stop();
}
playing = Optional.of(player);
}
private synchronized static void removePlaying(@NonNull AudioSlidePlayer player) {
if (playing.isPresent() && playing.get() == player) {
playing = Optional.absent();
}
}
@Override
public void onSensorChanged(SensorEvent event) {
if (event.sensor.getType() != Sensor.TYPE_PROXIMITY) return;
if (mediaPlayer == null || !mediaPlayer.isPlaying()) return;
int streamType;
if (event.values[0] < 5f && event.values[0] != proximitySensor.getMaximumRange()) {
streamType = AudioManager.STREAM_VOICE_CALL;
} else {
streamType = AudioManager.STREAM_MUSIC;
}
if (streamType == AudioManager.STREAM_VOICE_CALL &&
mediaPlayer.getAudioStreamType() != streamType &&
!audioManager.isWiredHeadsetOn())
{
double position = mediaPlayer.getCurrentPosition();
double duration = mediaPlayer.getDuration();
double progress = position / duration;
if (wakeLock != null) wakeLock.acquire();
stop();
try {
play(progress, true);
} catch (IOException e) {
Log.w(TAG, e);
}
} else if (streamType == AudioManager.STREAM_MUSIC &&
mediaPlayer.getAudioStreamType() != streamType &&
System.currentTimeMillis() - startTime > 500)
{
if (wakeLock != null) wakeLock.release();
stop();
notifyOnStop();
}
}
@Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
}
public interface Listener {
public void onStart();
public void onStop();
public void onProgress(double progress, long millis);
}
private static class ProgressEventHandler extends Handler {
private final WeakReference<AudioSlidePlayer> playerReference;
private ProgressEventHandler(@NonNull AudioSlidePlayer player) {
this.playerReference = new WeakReference<>(player);
}
@Override
public void handleMessage(Message msg) {
AudioSlidePlayer player = playerReference.get();
if (player == null || player.mediaPlayer == null || !player.mediaPlayer.isPlaying()) {
return;
}
Pair<Double, Integer> progress = player.getProgress();
player.notifyOnProgress(progress.first, progress.second);
sendEmptyMessageDelayed(0, 50);
}
}
private static class MediaPlayerWrapper extends MediaPlayer {
private int streamType;
@Override
public void setAudioStreamType(int streamType) {
this.streamType = streamType;
super.setAudioStreamType(streamType);
}
public int getAudioStreamType() {
return streamType;
}
}
}