RtpSessionActivity.java

   1package eu.siacs.conversations.ui;
   2
   3import android.Manifest;
   4import android.annotation.SuppressLint;
   5import android.app.PictureInPictureParams;
   6import android.content.ActivityNotFoundException;
   7import android.content.Context;
   8import android.content.Intent;
   9import android.content.pm.PackageManager;
  10import android.os.Build;
  11import android.os.Bundle;
  12import android.os.Handler;
  13import android.os.PowerManager;
  14import android.os.SystemClock;
  15import android.util.Log;
  16import android.util.Rational;
  17import android.view.KeyEvent;
  18import android.view.Menu;
  19import android.view.MenuItem;
  20import android.view.View;
  21import android.view.WindowManager;
  22import android.widget.Toast;
  23
  24import androidx.annotation.NonNull;
  25import androidx.annotation.RequiresApi;
  26import androidx.annotation.StringRes;
  27import androidx.databinding.DataBindingUtil;
  28
  29import com.google.common.base.Optional;
  30import com.google.common.base.Preconditions;
  31import com.google.common.base.Throwables;
  32import com.google.common.collect.ImmutableList;
  33import com.google.common.collect.ImmutableSet;
  34import com.google.common.util.concurrent.FutureCallback;
  35import com.google.common.util.concurrent.Futures;
  36
  37import org.checkerframework.checker.nullness.compatqual.NullableDecl;
  38import org.jetbrains.annotations.NotNull;
  39import org.webrtc.RendererCommon;
  40import org.webrtc.SurfaceViewRenderer;
  41import org.webrtc.VideoTrack;
  42
  43import java.lang.ref.WeakReference;
  44import java.util.Arrays;
  45import java.util.Collections;
  46import java.util.List;
  47import java.util.Set;
  48
  49import eu.siacs.conversations.Config;
  50import eu.siacs.conversations.R;
  51import eu.siacs.conversations.databinding.ActivityRtpSessionBinding;
  52import eu.siacs.conversations.entities.Account;
  53import eu.siacs.conversations.entities.Contact;
  54import eu.siacs.conversations.entities.Conversation;
  55import eu.siacs.conversations.services.AppRTCAudioManager;
  56import eu.siacs.conversations.services.XmppConnectionService;
  57import eu.siacs.conversations.ui.widget.DialpadView;
  58import eu.siacs.conversations.ui.util.AvatarWorkerTask;
  59import eu.siacs.conversations.ui.util.MainThreadExecutor;
  60import eu.siacs.conversations.utils.PermissionUtils;
  61import eu.siacs.conversations.utils.TimeFrameUtils;
  62import eu.siacs.conversations.xml.Namespace;
  63import eu.siacs.conversations.xmpp.Jid;
  64import eu.siacs.conversations.xmpp.jingle.AbstractJingleConnection;
  65import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
  66import eu.siacs.conversations.xmpp.jingle.JingleRtpConnection;
  67import eu.siacs.conversations.xmpp.jingle.Media;
  68import eu.siacs.conversations.xmpp.jingle.RtpEndUserState;
  69
  70import static eu.siacs.conversations.utils.PermissionUtils.getFirstDenied;
  71import static java.util.Arrays.asList;
  72
  73public class RtpSessionActivity extends XmppActivity implements XmppConnectionService.OnJingleRtpConnectionUpdate {
  74
  75    public static final String EXTRA_WITH = "with";
  76    public static final String EXTRA_SESSION_ID = "session_id";
  77    public static final String EXTRA_LAST_REPORTED_STATE = "last_reported_state";
  78    public static final String EXTRA_LAST_ACTION = "last_action";
  79    public static final String ACTION_ACCEPT_CALL = "action_accept_call";
  80    public static final String ACTION_MAKE_VOICE_CALL = "action_make_voice_call";
  81    public static final String ACTION_MAKE_VIDEO_CALL = "action_make_video_call";
  82
  83    private static final int CALL_DURATION_UPDATE_INTERVAL = 333;
  84
  85    private static final List<RtpEndUserState> END_CARD = Arrays.asList(
  86            RtpEndUserState.APPLICATION_ERROR,
  87            RtpEndUserState.SECURITY_ERROR,
  88            RtpEndUserState.DECLINED_OR_BUSY,
  89            RtpEndUserState.CONNECTIVITY_ERROR,
  90            RtpEndUserState.CONNECTIVITY_LOST_ERROR,
  91            RtpEndUserState.RETRACTED
  92    );
  93    private static final List<RtpEndUserState> STATES_SHOWING_HELP_BUTTON = Arrays.asList(
  94            RtpEndUserState.APPLICATION_ERROR,
  95            RtpEndUserState.CONNECTIVITY_ERROR,
  96            RtpEndUserState.SECURITY_ERROR
  97    );
  98    private static final List<RtpEndUserState> STATES_SHOWING_SWITCH_TO_CHAT = Arrays.asList(
  99            RtpEndUserState.CONNECTING,
 100            RtpEndUserState.CONNECTED
 101    );
 102    private static final String PROXIMITY_WAKE_LOCK_TAG = "conversations:in-rtp-session";
 103    private static final int REQUEST_ACCEPT_CALL = 0x1111;
 104    private WeakReference<JingleRtpConnection> rtpConnectionReference;
 105
 106    private ActivityRtpSessionBinding binding;
 107    private PowerManager.WakeLock mProximityWakeLock;
 108
 109    private final Handler mHandler = new Handler();
 110    private final Runnable mTickExecutor = new Runnable() {
 111        @Override
 112        public void run() {
 113            updateCallDuration();
 114            mHandler.postDelayed(mTickExecutor, CALL_DURATION_UPDATE_INTERVAL);
 115        }
 116    };
 117
 118    private static Set<Media> actionToMedia(final String action) {
 119        if (ACTION_MAKE_VIDEO_CALL.equals(action)) {
 120            return ImmutableSet.of(Media.AUDIO, Media.VIDEO);
 121        } else {
 122            return ImmutableSet.of(Media.AUDIO);
 123        }
 124    }
 125
 126    private static void addSink(final VideoTrack videoTrack, final SurfaceViewRenderer surfaceViewRenderer) {
 127        try {
 128            videoTrack.addSink(surfaceViewRenderer);
 129        } catch (final IllegalStateException e) {
 130            Log.e(Config.LOGTAG, "possible race condition on trying to display video track. ignoring", e);
 131        }
 132    }
 133
 134    @Override
 135    public void onCreate(Bundle savedInstanceState) {
 136        super.onCreate(savedInstanceState);
 137        getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
 138                | WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD
 139                | WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED
 140                | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);
 141        this.binding = DataBindingUtil.setContentView(this, R.layout.activity_rtp_session);
 142        setSupportActionBar(binding.toolbar);
 143
 144        ((DialpadView)findViewById(R.id.dialpad)).setClickConsumer(tag -> {
 145            requireRtpConnection().applyDtmfTone(tag);
 146        });
 147
 148        if (savedInstanceState != null) {
 149            int dialpad_visibility = savedInstanceState.getInt("dialpad_visibility");
 150            findViewById(R.id.dialpad).setVisibility(dialpad_visibility);
 151        }
 152    }
 153
 154    @Override
 155    public boolean onCreateOptionsMenu(final Menu menu) {
 156        getMenuInflater().inflate(R.menu.activity_rtp_session, menu);
 157        final MenuItem help = menu.findItem(R.id.action_help);
 158        final MenuItem gotoChat = menu.findItem(R.id.action_goto_chat);
 159        final MenuItem dialpad = menu.findItem(R.id.action_dialpad);
 160        help.setVisible(isHelpButtonVisible());
 161        gotoChat.setVisible(isSwitchToConversationVisible());
 162        dialpad.setVisible(isAudioOnlyConversation());
 163        return super.onCreateOptionsMenu(menu);
 164    }
 165
 166    @Override
 167    public boolean onKeyDown(final int keyCode, final KeyEvent event) {
 168        if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN) {
 169            if (xmppConnectionService != null) {
 170                if (xmppConnectionService.getNotificationService().stopSoundAndVibration()) {
 171                    return true;
 172                }
 173            }
 174        }
 175        return super.onKeyDown(keyCode, event);
 176    }
 177
 178    private boolean isHelpButtonVisible() {
 179        try {
 180            return STATES_SHOWING_HELP_BUTTON.contains(requireRtpConnection().getEndUserState());
 181        } catch (IllegalStateException e) {
 182            final Intent intent = getIntent();
 183            final String state = intent != null ? intent.getStringExtra(EXTRA_LAST_REPORTED_STATE) : null;
 184            if (state != null) {
 185                return STATES_SHOWING_HELP_BUTTON.contains(RtpEndUserState.valueOf(state));
 186            } else {
 187                return false;
 188            }
 189        }
 190    }
 191
 192    private boolean isSwitchToConversationVisible() {
 193        final JingleRtpConnection connection = this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
 194        return connection != null && STATES_SHOWING_SWITCH_TO_CHAT.contains(connection.getEndUserState());
 195    }
 196
 197    private boolean isAudioOnlyConversation() {
 198        final JingleRtpConnection connection =
 199                this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
 200        return connection != null &&
 201                connection.getEndUserState() == RtpEndUserState.CONNECTED &&
 202                !connection.isVideoEnabled();
 203    }
 204
 205    private void switchToConversation() {
 206        final Contact contact = getWith();
 207        final Conversation conversation = xmppConnectionService.findOrCreateConversation(contact.getAccount(), contact.getJid(), false, true);
 208        switchToConversation(conversation);
 209    }
 210
 211    private void toggleDialpadVisibility() {
 212        if (binding.dialpad.getVisibility() == View.VISIBLE) {
 213            binding.dialpad.setVisibility(View.GONE);
 214        }
 215        else {
 216            binding.dialpad.setVisibility(View.VISIBLE);
 217        }
 218    }
 219
 220    public boolean onOptionsItemSelected(final MenuItem item) {
 221        switch (item.getItemId()) {
 222            case R.id.action_help:
 223                launchHelpInBrowser();
 224                break;
 225            case R.id.action_goto_chat:
 226                switchToConversation();
 227                break;
 228            case R.id.action_dialpad:
 229                toggleDialpadVisibility();
 230                break;
 231        }
 232        return super.onOptionsItemSelected(item);
 233    }
 234
 235    private void launchHelpInBrowser() {
 236        final Intent intent = new Intent(Intent.ACTION_VIEW, Config.HELP);
 237        try {
 238            startActivity(intent);
 239        } catch (final ActivityNotFoundException e) {
 240            Toast.makeText(this, R.string.no_application_found_to_open_link, Toast.LENGTH_LONG).show();
 241        }
 242    }
 243
 244    private void endCall(View view) {
 245        endCall();
 246    }
 247
 248    private void endCall() {
 249        if (this.rtpConnectionReference == null) {
 250            retractSessionProposal();
 251            finish();
 252        } else {
 253            requireRtpConnection().endCall();
 254        }
 255    }
 256
 257    private void retractSessionProposal() {
 258        final Intent intent = getIntent();
 259        final String action = intent.getAction();
 260        final Account account = extractAccount(intent);
 261        final Jid with = Jid.ofEscaped(intent.getStringExtra(EXTRA_WITH));
 262        final String state = intent.getStringExtra(EXTRA_LAST_REPORTED_STATE);
 263        if (!Intent.ACTION_VIEW.equals(action) || state == null || !END_CARD.contains(RtpEndUserState.valueOf(state))) {
 264            resetIntent(account, with, RtpEndUserState.RETRACTED, actionToMedia(intent.getAction()));
 265        }
 266        xmppConnectionService.getJingleConnectionManager().retractSessionProposal(account, with.asBareJid());
 267    }
 268
 269    private void rejectCall(View view) {
 270        requireRtpConnection().rejectCall();
 271        finish();
 272    }
 273
 274    private void acceptCall(View view) {
 275        requestPermissionsAndAcceptCall();
 276    }
 277
 278    private void requestPermissionsAndAcceptCall() {
 279        final List<String> permissions;
 280        if (getMedia().contains(Media.VIDEO)) {
 281            permissions = ImmutableList.of(Manifest.permission.CAMERA, Manifest.permission.RECORD_AUDIO);
 282        } else {
 283            permissions = ImmutableList.of(Manifest.permission.RECORD_AUDIO);
 284        }
 285        if (PermissionUtils.hasPermission(this, permissions, REQUEST_ACCEPT_CALL)) {
 286            putScreenInCallMode();
 287            checkRecorderAndAcceptCall();
 288        }
 289    }
 290
 291    private void checkRecorderAndAcceptCall() {
 292        checkMicrophoneAvailability();
 293        try {
 294            requireRtpConnection().acceptCall();
 295        } catch (final IllegalStateException e) {
 296            Toast.makeText(this, e.getMessage(), Toast.LENGTH_SHORT).show();
 297        }
 298    }
 299
 300    private void checkMicrophoneAvailability() {
 301        new Thread(() -> {
 302            final long start = SystemClock.elapsedRealtime();
 303            final boolean isMicrophoneAvailable = AppRTCAudioManager.isMicrophoneAvailable();
 304            final long stop = SystemClock.elapsedRealtime();
 305            Log.d(Config.LOGTAG, "checking microphone availability took " + (stop - start) + "ms");
 306            if (isMicrophoneAvailable) {
 307                return;
 308            }
 309            runOnUiThread(() -> Toast.makeText(this, R.string.microphone_unavailable, Toast.LENGTH_LONG).show());
 310        }
 311        ).start();
 312    }
 313
 314    private void putScreenInCallMode() {
 315        putScreenInCallMode(requireRtpConnection().getMedia());
 316    }
 317
 318    private void putScreenInCallMode(final Set<Media> media) {
 319        getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
 320        if (!media.contains(Media.VIDEO)) {
 321            final JingleRtpConnection rtpConnection = rtpConnectionReference != null ? rtpConnectionReference.get() : null;
 322            final AppRTCAudioManager audioManager = rtpConnection == null ? null : rtpConnection.getAudioManager();
 323            if (audioManager == null || audioManager.getSelectedAudioDevice() == AppRTCAudioManager.AudioDevice.EARPIECE) {
 324                acquireProximityWakeLock();
 325            }
 326        }
 327    }
 328
 329    @SuppressLint("WakelockTimeout")
 330    private void acquireProximityWakeLock() {
 331        final PowerManager powerManager = (PowerManager) getSystemService(Context.POWER_SERVICE);
 332        if (powerManager == null) {
 333            Log.e(Config.LOGTAG, "power manager not available");
 334            return;
 335        }
 336        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
 337            if (this.mProximityWakeLock == null) {
 338                this.mProximityWakeLock = powerManager.newWakeLock(PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK, PROXIMITY_WAKE_LOCK_TAG);
 339            }
 340            if (!this.mProximityWakeLock.isHeld()) {
 341                Log.d(Config.LOGTAG, "acquiring proximity wake lock");
 342                this.mProximityWakeLock.acquire();
 343            }
 344        }
 345    }
 346
 347    private void releaseProximityWakeLock() {
 348        if (this.mProximityWakeLock != null && mProximityWakeLock.isHeld()) {
 349            Log.d(Config.LOGTAG, "releasing proximity wake lock");
 350            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
 351                this.mProximityWakeLock.release(PowerManager.RELEASE_FLAG_WAIT_FOR_NO_PROXIMITY);
 352            } else {
 353                this.mProximityWakeLock.release();
 354            }
 355            this.mProximityWakeLock = null;
 356        }
 357    }
 358
 359    private void putProximityWakeLockInProperState(final AppRTCAudioManager.AudioDevice audioDevice) {
 360        if (audioDevice == AppRTCAudioManager.AudioDevice.EARPIECE) {
 361            acquireProximityWakeLock();
 362        } else {
 363            releaseProximityWakeLock();
 364        }
 365    }
 366
 367    @Override
 368    protected void refreshUiReal() {
 369
 370    }
 371
 372    @Override
 373    public void onNewIntent(final Intent intent) {
 374        Log.d(Config.LOGTAG, this.getClass().getName() + ".onNewIntent()");
 375        super.onNewIntent(intent);
 376        setIntent(intent);
 377        if (xmppConnectionService == null) {
 378            Log.d(Config.LOGTAG, "RtpSessionActivity: background service wasn't bound in onNewIntent()");
 379            return;
 380        }
 381        final Account account = extractAccount(intent);
 382        final String action = intent.getAction();
 383        final Jid with = Jid.ofEscaped(intent.getStringExtra(EXTRA_WITH));
 384        final String sessionId = intent.getStringExtra(EXTRA_SESSION_ID);
 385        if (sessionId != null) {
 386            Log.d(Config.LOGTAG, "reinitializing from onNewIntent()");
 387            if (initializeActivityWithRunningRtpSession(account, with, sessionId)) {
 388                return;
 389            }
 390            if (ACTION_ACCEPT_CALL.equals(intent.getAction())) {
 391                Log.d(Config.LOGTAG, "accepting call from onNewIntent()");
 392                requestPermissionsAndAcceptCall();
 393                resetIntent(intent.getExtras());
 394            }
 395        } else if (asList(ACTION_MAKE_VIDEO_CALL, ACTION_MAKE_VOICE_CALL).contains(action)) {
 396            proposeJingleRtpSession(account, with, actionToMedia(action));
 397            binding.with.setText(account.getRoster().getContact(with).getDisplayName());
 398            binding.withJid.setText(with.asBareJid());
 399        } else {
 400            throw new IllegalStateException("received onNewIntent without sessionId");
 401        }
 402    }
 403
 404    @Override
 405    void onBackendConnected() {
 406        final Intent intent = getIntent();
 407        final String action = intent.getAction();
 408        final Account account = extractAccount(intent);
 409        final Jid with = Jid.ofEscaped(intent.getStringExtra(EXTRA_WITH));
 410        final String sessionId = intent.getStringExtra(EXTRA_SESSION_ID);
 411        if (sessionId != null) {
 412            if (initializeActivityWithRunningRtpSession(account, with, sessionId)) {
 413                return;
 414            }
 415            if (ACTION_ACCEPT_CALL.equals(intent.getAction())) {
 416                Log.d(Config.LOGTAG, "intent action was accept");
 417                requestPermissionsAndAcceptCall();
 418                resetIntent(intent.getExtras());
 419            }
 420        } else if (asList(ACTION_MAKE_VIDEO_CALL, ACTION_MAKE_VOICE_CALL).contains(action)) {
 421            proposeJingleRtpSession(account, with, actionToMedia(action));
 422            binding.with.setText(account.getRoster().getContact(with).getDisplayName());
 423            binding.withJid.setText(with.asBareJid());
 424        } else if (Intent.ACTION_VIEW.equals(action)) {
 425            final String extraLastState = intent.getStringExtra(EXTRA_LAST_REPORTED_STATE);
 426            final RtpEndUserState state = extraLastState == null ? null : RtpEndUserState.valueOf(extraLastState);
 427            if (state != null) {
 428                Log.d(Config.LOGTAG, "restored last state from intent extra");
 429                updateButtonConfiguration(state);
 430                updateVerifiedShield(false);
 431                updateStateDisplay(state);
 432                updateProfilePicture(state);
 433                invalidateOptionsMenu();
 434            }
 435            binding.with.setText(account.getRoster().getContact(with).getDisplayName());
 436            binding.withJid.setText(with.asBareJid());
 437            if (xmppConnectionService.getJingleConnectionManager().fireJingleRtpConnectionStateUpdates()) {
 438                return;
 439            }
 440            if (END_CARD.contains(state) || xmppConnectionService.getJingleConnectionManager().hasMatchingProposal(account, with)) {
 441                return;
 442            }
 443            Log.d(Config.LOGTAG, "restored state (" + state + ") was not an end card. finishing");
 444            finish();
 445        }
 446    }
 447
 448    private void proposeJingleRtpSession(final Account account, final Jid with, final Set<Media> media) {
 449        checkMicrophoneAvailability();
 450        if (with.isBareJid()) {
 451            xmppConnectionService.getJingleConnectionManager().proposeJingleRtpSession(account, with, media);
 452        } else {
 453            final String sessionId = xmppConnectionService.getJingleConnectionManager().initializeRtpSession(account, with, media);
 454            initializeActivityWithRunningRtpSession(account, with, sessionId);
 455            resetIntent(account, with, sessionId);
 456        }
 457        putScreenInCallMode(media);
 458    }
 459
 460    @Override
 461    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
 462        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
 463        if (PermissionUtils.allGranted(grantResults)) {
 464            if (requestCode == REQUEST_ACCEPT_CALL) {
 465                checkRecorderAndAcceptCall();
 466            }
 467        } else {
 468            @StringRes int res;
 469            final String firstDenied = getFirstDenied(grantResults, permissions);
 470            if (Manifest.permission.RECORD_AUDIO.equals(firstDenied)) {
 471                res = R.string.no_microphone_permission;
 472            } else if (Manifest.permission.CAMERA.equals(firstDenied)) {
 473                res = R.string.no_camera_permission;
 474            } else {
 475                throw new IllegalStateException("Invalid permission result request");
 476            }
 477            Toast.makeText(this, getString(res, getString(R.string.app_name)), Toast.LENGTH_SHORT).show();
 478        }
 479    }
 480
 481    @Override
 482    public void onStart() {
 483        super.onStart();
 484        mHandler.postDelayed(mTickExecutor, CALL_DURATION_UPDATE_INTERVAL);
 485    }
 486
 487    @Override
 488    public void onStop() {
 489        mHandler.removeCallbacks(mTickExecutor);
 490        binding.remoteVideo.release();
 491        binding.localVideo.release();
 492        final WeakReference<JingleRtpConnection> weakReference = this.rtpConnectionReference;
 493        final JingleRtpConnection jingleRtpConnection = weakReference == null ? null : weakReference.get();
 494        if (jingleRtpConnection != null) {
 495            releaseVideoTracks(jingleRtpConnection);
 496        }
 497        releaseProximityWakeLock();
 498        super.onStop();
 499    }
 500
 501    private void releaseVideoTracks(final JingleRtpConnection jingleRtpConnection) {
 502        final Optional<VideoTrack> remoteVideo = jingleRtpConnection.getRemoteVideoTrack();
 503        if (remoteVideo.isPresent()) {
 504            remoteVideo.get().removeSink(binding.remoteVideo);
 505        }
 506        final Optional<VideoTrack> localVideo = jingleRtpConnection.getLocalVideoTrack();
 507        if (localVideo.isPresent()) {
 508            localVideo.get().removeSink(binding.localVideo);
 509        }
 510    }
 511
 512    @Override
 513    public void onBackPressed() {
 514        if (isConnected()) {
 515            if (switchToPictureInPicture()) {
 516                return;
 517            }
 518        } else {
 519            endCall();
 520        }
 521        super.onBackPressed();
 522    }
 523
 524    @Override
 525    public void onUserLeaveHint() {
 526        super.onUserLeaveHint();
 527        if (switchToPictureInPicture()) {
 528            return;
 529        }
 530        //TODO apparently this method is not getting called on Android 10 when using the task switcher
 531        if (emptyReference(rtpConnectionReference) && xmppConnectionService != null) {
 532            retractSessionProposal();
 533        }
 534    }
 535
 536    private boolean isConnected() {
 537        final JingleRtpConnection connection = this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
 538        return connection != null && connection.getEndUserState() == RtpEndUserState.CONNECTED;
 539    }
 540
 541    private boolean switchToPictureInPicture() {
 542        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O && deviceSupportsPictureInPicture()) {
 543            if (shouldBePictureInPicture()) {
 544                startPictureInPicture();
 545                return true;
 546            }
 547        }
 548        return false;
 549    }
 550
 551    @RequiresApi(api = Build.VERSION_CODES.O)
 552    private void startPictureInPicture() {
 553        try {
 554            enterPictureInPictureMode(
 555                    new PictureInPictureParams.Builder()
 556                            .setAspectRatio(new Rational(10, 16))
 557                            .build()
 558            );
 559        } catch (final IllegalStateException e) {
 560            //this sometimes happens on Samsung phones (possibly when Knox is enabled)
 561            Log.w(Config.LOGTAG, "unable to enter picture in picture mode", e);
 562        }
 563    }
 564
 565    private boolean deviceSupportsPictureInPicture() {
 566        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 567            return getPackageManager().hasSystemFeature(PackageManager.FEATURE_PICTURE_IN_PICTURE);
 568        } else {
 569            return false;
 570        }
 571    }
 572
 573    private boolean shouldBePictureInPicture() {
 574        try {
 575            final JingleRtpConnection rtpConnection = requireRtpConnection();
 576            return rtpConnection.getMedia().contains(Media.VIDEO) && Arrays.asList(
 577                    RtpEndUserState.ACCEPTING_CALL,
 578                    RtpEndUserState.CONNECTING,
 579                    RtpEndUserState.CONNECTED
 580            ).contains(rtpConnection.getEndUserState());
 581        } catch (final IllegalStateException e) {
 582            return false;
 583        }
 584    }
 585
 586    private boolean initializeActivityWithRunningRtpSession(final Account account, Jid with, String sessionId) {
 587        final WeakReference<JingleRtpConnection> reference = xmppConnectionService.getJingleConnectionManager()
 588                .findJingleRtpConnection(account, with, sessionId);
 589        if (reference == null || reference.get() == null) {
 590            final JingleConnectionManager.TerminatedRtpSession terminatedRtpSession = xmppConnectionService
 591                    .getJingleConnectionManager().getTerminalSessionState(with, sessionId);
 592            if (terminatedRtpSession == null) {
 593                throw new IllegalStateException("failed to initialize activity with running rtp session. session not found");
 594            }
 595            initializeWithTerminatedSessionState(account, with, terminatedRtpSession);
 596            return true;
 597        }
 598        this.rtpConnectionReference = reference;
 599        final RtpEndUserState currentState = requireRtpConnection().getEndUserState();
 600        final boolean verified = requireRtpConnection().isVerified();
 601        if (currentState == RtpEndUserState.ENDED) {
 602            reference.get().throwStateTransitionException();
 603            finish();
 604            return true;
 605        }
 606        final Set<Media> media = getMedia();
 607        if (currentState == RtpEndUserState.INCOMING_CALL) {
 608            getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
 609        }
 610        if (JingleRtpConnection.STATES_SHOWING_ONGOING_CALL.contains(requireRtpConnection().getState())) {
 611            putScreenInCallMode();
 612        }
 613        binding.with.setText(getWith().getDisplayName());
 614        binding.withJid.setText(with.asBareJid());
 615        updateVideoViews(currentState);
 616        updateStateDisplay(currentState, media);
 617        updateVerifiedShield(verified && STATES_SHOWING_SWITCH_TO_CHAT.contains(currentState));
 618        updateButtonConfiguration(currentState, media);
 619        updateProfilePicture(currentState);
 620        invalidateOptionsMenu();
 621        return false;
 622    }
 623
 624    private void initializeWithTerminatedSessionState(final Account account, final Jid with, final JingleConnectionManager.TerminatedRtpSession terminatedRtpSession) {
 625        Log.d(Config.LOGTAG, "initializeWithTerminatedSessionState()");
 626        if (terminatedRtpSession.state == RtpEndUserState.ENDED) {
 627            finish();
 628            return;
 629        }
 630        RtpEndUserState state = terminatedRtpSession.state;
 631        resetIntent(account, with, terminatedRtpSession.state, terminatedRtpSession.media);
 632        updateButtonConfiguration(state);
 633        updateStateDisplay(state);
 634        updateProfilePicture(state);
 635        updateCallDuration();
 636        updateVerifiedShield(false);
 637        invalidateOptionsMenu();
 638        binding.with.setText(account.getRoster().getContact(with).getDisplayName());
 639        binding.withJid.setText(with.asBareJid());
 640    }
 641
 642    private void reInitializeActivityWithRunningRtpSession(final Account account, Jid with, String sessionId) {
 643        runOnUiThread(() -> initializeActivityWithRunningRtpSession(account, with, sessionId));
 644        resetIntent(account, with, sessionId);
 645    }
 646
 647    private void resetIntent(final Account account, final Jid with, final String sessionId) {
 648        final Intent intent = new Intent(Intent.ACTION_VIEW);
 649        intent.putExtra(EXTRA_ACCOUNT, account.getJid().toEscapedString());
 650        intent.putExtra(EXTRA_WITH, with.toEscapedString());
 651        intent.putExtra(EXTRA_SESSION_ID, sessionId);
 652        setIntent(intent);
 653    }
 654
 655    private void ensureSurfaceViewRendererIsSetup(final SurfaceViewRenderer surfaceViewRenderer) {
 656        surfaceViewRenderer.setVisibility(View.VISIBLE);
 657        try {
 658            surfaceViewRenderer.init(requireRtpConnection().getEglBaseContext(), null);
 659        } catch (IllegalStateException e) {
 660            Log.d(Config.LOGTAG, "SurfaceViewRenderer was already initialized");
 661        }
 662        surfaceViewRenderer.setEnableHardwareScaler(true);
 663    }
 664
 665    private void updateStateDisplay(final RtpEndUserState state) {
 666        updateStateDisplay(state, Collections.emptySet());
 667    }
 668
 669    private void updateStateDisplay(final RtpEndUserState state, final Set<Media> media) {
 670        switch (state) {
 671            case INCOMING_CALL:
 672                Preconditions.checkArgument(media.size() > 0, "Media must not be empty");
 673                if (media.contains(Media.VIDEO)) {
 674                    setTitle(R.string.rtp_state_incoming_video_call);
 675                } else {
 676                    setTitle(R.string.rtp_state_incoming_call);
 677                }
 678                break;
 679            case CONNECTING:
 680                setTitle(R.string.rtp_state_connecting);
 681                break;
 682            case CONNECTED:
 683                setTitle(R.string.rtp_state_connected);
 684                break;
 685            case ACCEPTING_CALL:
 686                setTitle(R.string.rtp_state_accepting_call);
 687                break;
 688            case ENDING_CALL:
 689                setTitle(R.string.rtp_state_ending_call);
 690                break;
 691            case FINDING_DEVICE:
 692                setTitle(R.string.rtp_state_finding_device);
 693                break;
 694            case RINGING:
 695                setTitle(R.string.rtp_state_ringing);
 696                break;
 697            case DECLINED_OR_BUSY:
 698                setTitle(R.string.rtp_state_declined_or_busy);
 699                break;
 700            case CONNECTIVITY_ERROR:
 701                setTitle(R.string.rtp_state_connectivity_error);
 702                break;
 703            case CONNECTIVITY_LOST_ERROR:
 704                setTitle(R.string.rtp_state_connectivity_lost_error);
 705                break;
 706            case RETRACTED:
 707                setTitle(R.string.rtp_state_retracted);
 708                break;
 709            case APPLICATION_ERROR:
 710                setTitle(R.string.rtp_state_application_failure);
 711                break;
 712            case SECURITY_ERROR:
 713                setTitle(R.string.rtp_state_security_error);
 714                break;
 715            case ENDED:
 716                throw new IllegalStateException("Activity should have called finishAndReleaseWakeLock();");
 717            default:
 718                throw new IllegalStateException(String.format("State %s has not been handled in UI", state));
 719        }
 720    }
 721
 722    private void updateVerifiedShield(final boolean verified) {
 723        if (isPictureInPicture()) {
 724            this.binding.verified.setVisibility(View.GONE);
 725            return;
 726        }
 727        this.binding.verified.setVisibility(verified ? View.VISIBLE : View.GONE);
 728    }
 729
 730    private void updateProfilePicture(final RtpEndUserState state) {
 731        updateProfilePicture(state, null);
 732    }
 733
 734    private void updateProfilePicture(final RtpEndUserState state, final Contact contact) {
 735        if (state == RtpEndUserState.INCOMING_CALL || state == RtpEndUserState.ACCEPTING_CALL) {
 736            final boolean show = getResources().getBoolean(R.bool.show_avatar_incoming_call);
 737            if (show) {
 738                binding.contactPhoto.setVisibility(View.VISIBLE);
 739                if (contact == null) {
 740                    AvatarWorkerTask.loadAvatar(getWith(), binding.contactPhoto, R.dimen.publish_avatar_size);
 741                } else {
 742                    AvatarWorkerTask.loadAvatar(contact, binding.contactPhoto, R.dimen.publish_avatar_size);
 743                }
 744            } else {
 745                binding.contactPhoto.setVisibility(View.GONE);
 746            }
 747        } else {
 748            binding.contactPhoto.setVisibility(View.GONE);
 749        }
 750    }
 751
 752    private Set<Media> getMedia() {
 753        return requireRtpConnection().getMedia();
 754    }
 755
 756    private void updateButtonConfiguration(final RtpEndUserState state) {
 757        updateButtonConfiguration(state, Collections.emptySet());
 758    }
 759
 760    @SuppressLint("RestrictedApi")
 761    private void updateButtonConfiguration(final RtpEndUserState state, final Set<Media> media) {
 762        if (state == RtpEndUserState.ENDING_CALL || isPictureInPicture()) {
 763            this.binding.rejectCall.setVisibility(View.INVISIBLE);
 764            this.binding.endCall.setVisibility(View.INVISIBLE);
 765            this.binding.acceptCall.setVisibility(View.INVISIBLE);
 766        } else if (state == RtpEndUserState.INCOMING_CALL) {
 767            this.binding.rejectCall.setContentDescription(getString(R.string.dismiss_call));
 768            this.binding.rejectCall.setOnClickListener(this::rejectCall);
 769            this.binding.rejectCall.setImageResource(R.drawable.ic_call_end_white_48dp);
 770            this.binding.rejectCall.setVisibility(View.VISIBLE);
 771            this.binding.endCall.setVisibility(View.INVISIBLE);
 772            this.binding.acceptCall.setContentDescription(getString(R.string.answer_call));
 773            this.binding.acceptCall.setOnClickListener(this::acceptCall);
 774            this.binding.acceptCall.setImageResource(R.drawable.ic_call_white_48dp);
 775            this.binding.acceptCall.setVisibility(View.VISIBLE);
 776        } else if (state == RtpEndUserState.DECLINED_OR_BUSY) {
 777            this.binding.rejectCall.setContentDescription(getString(R.string.exit));
 778            this.binding.rejectCall.setOnClickListener(this::exit);
 779            this.binding.rejectCall.setImageResource(R.drawable.ic_clear_white_48dp);
 780            this.binding.rejectCall.setVisibility(View.VISIBLE);
 781            this.binding.endCall.setVisibility(View.INVISIBLE);
 782            this.binding.acceptCall.setContentDescription(getString(R.string.record_voice_mail));
 783            this.binding.acceptCall.setOnClickListener(this::recordVoiceMail);
 784            this.binding.acceptCall.setImageResource(R.drawable.ic_voicemail_white_24dp);
 785            this.binding.acceptCall.setVisibility(View.VISIBLE);
 786        } else if (asList(
 787                RtpEndUserState.CONNECTIVITY_ERROR,
 788                RtpEndUserState.CONNECTIVITY_LOST_ERROR,
 789                RtpEndUserState.APPLICATION_ERROR,
 790                RtpEndUserState.RETRACTED,
 791                RtpEndUserState.SECURITY_ERROR
 792        ).contains(state)) {
 793            this.binding.rejectCall.setContentDescription(getString(R.string.exit));
 794            this.binding.rejectCall.setOnClickListener(this::exit);
 795            this.binding.rejectCall.setImageResource(R.drawable.ic_clear_white_48dp);
 796            this.binding.rejectCall.setVisibility(View.VISIBLE);
 797            this.binding.endCall.setVisibility(View.INVISIBLE);
 798            this.binding.acceptCall.setContentDescription(getString(R.string.try_again));
 799            this.binding.acceptCall.setOnClickListener(this::retry);
 800            this.binding.acceptCall.setImageResource(R.drawable.ic_replay_white_48dp);
 801            this.binding.acceptCall.setVisibility(View.VISIBLE);
 802        } else {
 803            this.binding.rejectCall.setVisibility(View.INVISIBLE);
 804            this.binding.endCall.setContentDescription(getString(R.string.hang_up));
 805            this.binding.endCall.setOnClickListener(this::endCall);
 806            this.binding.endCall.setImageResource(R.drawable.ic_call_end_white_48dp);
 807            this.binding.endCall.setVisibility(View.VISIBLE);
 808            this.binding.acceptCall.setVisibility(View.INVISIBLE);
 809        }
 810        updateInCallButtonConfiguration(state, media);
 811    }
 812
 813    private boolean isPictureInPicture() {
 814        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
 815            return isInPictureInPictureMode();
 816        } else {
 817            return false;
 818        }
 819    }
 820
 821    private void updateInCallButtonConfiguration() {
 822        updateInCallButtonConfiguration(requireRtpConnection().getEndUserState(), requireRtpConnection().getMedia());
 823    }
 824
 825    @SuppressLint("RestrictedApi")
 826    private void updateInCallButtonConfiguration(final RtpEndUserState state, final Set<Media> media) {
 827        if (state == RtpEndUserState.CONNECTED && !isPictureInPicture()) {
 828            Preconditions.checkArgument(media.size() > 0, "Media must not be empty");
 829            if (media.contains(Media.VIDEO)) {
 830                final JingleRtpConnection rtpConnection = requireRtpConnection();
 831                updateInCallButtonConfigurationVideo(rtpConnection.isVideoEnabled(), rtpConnection.isCameraSwitchable());
 832            } else {
 833                final AppRTCAudioManager audioManager = requireRtpConnection().getAudioManager();
 834                updateInCallButtonConfigurationSpeaker(
 835                        audioManager.getSelectedAudioDevice(),
 836                        audioManager.getAudioDevices().size()
 837                );
 838                this.binding.inCallActionFarRight.setVisibility(View.GONE);
 839            }
 840            if (media.contains(Media.AUDIO)) {
 841                updateInCallButtonConfigurationMicrophone(requireRtpConnection().isMicrophoneEnabled());
 842            } else {
 843                this.binding.inCallActionLeft.setVisibility(View.GONE);
 844            }
 845        } else {
 846            this.binding.inCallActionLeft.setVisibility(View.GONE);
 847            this.binding.inCallActionRight.setVisibility(View.GONE);
 848            this.binding.inCallActionFarRight.setVisibility(View.GONE);
 849        }
 850    }
 851
 852    @SuppressLint("RestrictedApi")
 853    private void updateInCallButtonConfigurationSpeaker(final AppRTCAudioManager.AudioDevice selectedAudioDevice, final int numberOfChoices) {
 854        switch (selectedAudioDevice) {
 855            case EARPIECE:
 856                this.binding.inCallActionRight.setImageResource(R.drawable.ic_volume_off_black_24dp);
 857                if (numberOfChoices >= 2) {
 858                    this.binding.inCallActionRight.setOnClickListener(this::switchToSpeaker);
 859                } else {
 860                    this.binding.inCallActionRight.setOnClickListener(null);
 861                    this.binding.inCallActionRight.setClickable(false);
 862                }
 863                break;
 864            case WIRED_HEADSET:
 865                this.binding.inCallActionRight.setImageResource(R.drawable.ic_headset_black_24dp);
 866                this.binding.inCallActionRight.setOnClickListener(null);
 867                this.binding.inCallActionRight.setClickable(false);
 868                break;
 869            case SPEAKER_PHONE:
 870                this.binding.inCallActionRight.setImageResource(R.drawable.ic_volume_up_black_24dp);
 871                if (numberOfChoices >= 2) {
 872                    this.binding.inCallActionRight.setOnClickListener(this::switchToEarpiece);
 873                } else {
 874                    this.binding.inCallActionRight.setOnClickListener(null);
 875                    this.binding.inCallActionRight.setClickable(false);
 876                }
 877                break;
 878            case BLUETOOTH:
 879                this.binding.inCallActionRight.setImageResource(R.drawable.ic_bluetooth_audio_black_24dp);
 880                this.binding.inCallActionRight.setOnClickListener(null);
 881                this.binding.inCallActionRight.setClickable(false);
 882                break;
 883        }
 884        this.binding.inCallActionRight.setVisibility(View.VISIBLE);
 885    }
 886
 887    @SuppressLint("RestrictedApi")
 888    private void updateInCallButtonConfigurationVideo(final boolean videoEnabled, final boolean isCameraSwitchable) {
 889        this.binding.inCallActionRight.setVisibility(View.VISIBLE);
 890        if (isCameraSwitchable) {
 891            this.binding.inCallActionFarRight.setImageResource(R.drawable.ic_flip_camera_android_black_24dp);
 892            this.binding.inCallActionFarRight.setVisibility(View.VISIBLE);
 893            this.binding.inCallActionFarRight.setOnClickListener(this::switchCamera);
 894        } else {
 895            this.binding.inCallActionFarRight.setVisibility(View.GONE);
 896        }
 897        if (videoEnabled) {
 898            this.binding.inCallActionRight.setImageResource(R.drawable.ic_videocam_black_24dp);
 899            this.binding.inCallActionRight.setOnClickListener(this::disableVideo);
 900        } else {
 901            this.binding.inCallActionRight.setImageResource(R.drawable.ic_videocam_off_black_24dp);
 902            this.binding.inCallActionRight.setOnClickListener(this::enableVideo);
 903        }
 904    }
 905
 906    private void switchCamera(final View view) {
 907        Futures.addCallback(requireRtpConnection().switchCamera(), new FutureCallback<Boolean>() {
 908            @Override
 909            public void onSuccess(@NullableDecl Boolean isFrontCamera) {
 910                binding.localVideo.setMirror(isFrontCamera);
 911            }
 912
 913            @Override
 914            public void onFailure(@NonNull final Throwable throwable) {
 915                Log.d(Config.LOGTAG, "could not switch camera", Throwables.getRootCause(throwable));
 916                Toast.makeText(RtpSessionActivity.this, R.string.could_not_switch_camera, Toast.LENGTH_LONG).show();
 917            }
 918        }, MainThreadExecutor.getInstance());
 919    }
 920
 921    private void enableVideo(View view) {
 922        try {
 923            requireRtpConnection().setVideoEnabled(true);
 924        } catch (final IllegalStateException e) {
 925            Toast.makeText(this, R.string.unable_to_enable_video, Toast.LENGTH_SHORT).show();
 926            return;
 927        }
 928        updateInCallButtonConfigurationVideo(true, requireRtpConnection().isCameraSwitchable());
 929    }
 930
 931    private void disableVideo(View view) {
 932        requireRtpConnection().setVideoEnabled(false);
 933        updateInCallButtonConfigurationVideo(false, requireRtpConnection().isCameraSwitchable());
 934
 935    }
 936
 937    @SuppressLint("RestrictedApi")
 938    private void updateInCallButtonConfigurationMicrophone(final boolean microphoneEnabled) {
 939        if (microphoneEnabled) {
 940            this.binding.inCallActionLeft.setImageResource(R.drawable.ic_mic_black_24dp);
 941            this.binding.inCallActionLeft.setOnClickListener(this::disableMicrophone);
 942        } else {
 943            this.binding.inCallActionLeft.setImageResource(R.drawable.ic_mic_off_black_24dp);
 944            this.binding.inCallActionLeft.setOnClickListener(this::enableMicrophone);
 945        }
 946        this.binding.inCallActionLeft.setVisibility(View.VISIBLE);
 947    }
 948
 949    private void updateCallDuration() {
 950        final JingleRtpConnection connection = this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
 951        if (connection == null || connection.getMedia().contains(Media.VIDEO)) {
 952            this.binding.duration.setVisibility(View.GONE);
 953            return;
 954        }
 955        final long rtpConnectionStarted = connection.getRtpConnectionStarted();
 956        final long rtpConnectionEnded = connection.getRtpConnectionEnded();
 957        if (rtpConnectionStarted != 0) {
 958            final long ended = rtpConnectionEnded == 0 ? SystemClock.elapsedRealtime() : rtpConnectionEnded;
 959            this.binding.duration.setText(TimeFrameUtils.formatTimePassed(rtpConnectionStarted, ended, false));
 960            this.binding.duration.setVisibility(View.VISIBLE);
 961        } else {
 962            this.binding.duration.setVisibility(View.GONE);
 963        }
 964    }
 965
 966    private void updateVideoViews(final RtpEndUserState state) {
 967        if (END_CARD.contains(state) || state == RtpEndUserState.ENDING_CALL) {
 968            binding.localVideo.setVisibility(View.GONE);
 969            binding.localVideo.release();
 970            binding.remoteVideoWrapper.setVisibility(View.GONE);
 971            binding.remoteVideo.release();
 972            binding.pipLocalMicOffIndicator.setVisibility(View.GONE);
 973            if (isPictureInPicture()) {
 974                binding.appBarLayout.setVisibility(View.GONE);
 975                binding.pipPlaceholder.setVisibility(View.VISIBLE);
 976                if (Arrays.asList(
 977                        RtpEndUserState.APPLICATION_ERROR,
 978                        RtpEndUserState.CONNECTIVITY_ERROR,
 979                        RtpEndUserState.SECURITY_ERROR)
 980                        .contains(state)) {
 981                    binding.pipWarning.setVisibility(View.VISIBLE);
 982                    binding.pipWaiting.setVisibility(View.GONE);
 983                } else {
 984                    binding.pipWarning.setVisibility(View.GONE);
 985                    binding.pipWaiting.setVisibility(View.GONE);
 986                }
 987            } else {
 988                binding.appBarLayout.setVisibility(View.VISIBLE);
 989                binding.pipPlaceholder.setVisibility(View.GONE);
 990            }
 991            getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
 992            return;
 993        }
 994        if (isPictureInPicture() && (state == RtpEndUserState.CONNECTING || state == RtpEndUserState.ACCEPTING_CALL)) {
 995            binding.localVideo.setVisibility(View.GONE);
 996            binding.remoteVideoWrapper.setVisibility(View.GONE);
 997            binding.appBarLayout.setVisibility(View.GONE);
 998            binding.pipPlaceholder.setVisibility(View.VISIBLE);
 999            binding.pipWarning.setVisibility(View.GONE);
1000            binding.pipWaiting.setVisibility(View.VISIBLE);
1001            binding.pipLocalMicOffIndicator.setVisibility(View.GONE);
1002            return;
1003        }
1004        final Optional<VideoTrack> localVideoTrack = getLocalVideoTrack();
1005        if (localVideoTrack.isPresent() && !isPictureInPicture()) {
1006            ensureSurfaceViewRendererIsSetup(binding.localVideo);
1007            //paint local view over remote view
1008            binding.localVideo.setZOrderMediaOverlay(true);
1009            binding.localVideo.setMirror(requireRtpConnection().isFrontCamera());
1010            addSink(localVideoTrack.get(), binding.localVideo);
1011        } else {
1012            binding.localVideo.setVisibility(View.GONE);
1013        }
1014        final Optional<VideoTrack> remoteVideoTrack = getRemoteVideoTrack();
1015        if (remoteVideoTrack.isPresent()) {
1016            ensureSurfaceViewRendererIsSetup(binding.remoteVideo);
1017            addSink(remoteVideoTrack.get(), binding.remoteVideo);
1018            binding.remoteVideo.setScalingType(
1019                    RendererCommon.ScalingType.SCALE_ASPECT_FILL,
1020                    RendererCommon.ScalingType.SCALE_ASPECT_FIT
1021            );
1022            if (state == RtpEndUserState.CONNECTED) {
1023                binding.appBarLayout.setVisibility(View.GONE);
1024                getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
1025                binding.remoteVideoWrapper.setVisibility(View.VISIBLE);
1026            } else {
1027                getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
1028                binding.remoteVideoWrapper.setVisibility(View.GONE);
1029            }
1030            if (isPictureInPicture() && !requireRtpConnection().isMicrophoneEnabled()) {
1031                binding.pipLocalMicOffIndicator.setVisibility(View.VISIBLE);
1032            } else {
1033                binding.pipLocalMicOffIndicator.setVisibility(View.GONE);
1034            }
1035        } else {
1036            getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
1037            binding.remoteVideoWrapper.setVisibility(View.GONE);
1038            binding.pipLocalMicOffIndicator.setVisibility(View.GONE);
1039        }
1040    }
1041
1042    private Optional<VideoTrack> getLocalVideoTrack() {
1043        final JingleRtpConnection connection = this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
1044        if (connection == null) {
1045            return Optional.absent();
1046        }
1047        return connection.getLocalVideoTrack();
1048    }
1049
1050    private Optional<VideoTrack> getRemoteVideoTrack() {
1051        final JingleRtpConnection connection = this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
1052        if (connection == null) {
1053            return Optional.absent();
1054        }
1055        return connection.getRemoteVideoTrack();
1056    }
1057
1058    private void disableMicrophone(View view) {
1059        final JingleRtpConnection rtpConnection = requireRtpConnection();
1060        if (rtpConnection.setMicrophoneEnabled(false)) {
1061            updateInCallButtonConfiguration();
1062        }
1063    }
1064
1065    private void enableMicrophone(View view) {
1066        final JingleRtpConnection rtpConnection = requireRtpConnection();
1067        if (rtpConnection.setMicrophoneEnabled(true)) {
1068            updateInCallButtonConfiguration();
1069        }
1070    }
1071
1072    private void switchToEarpiece(View view) {
1073        requireRtpConnection().getAudioManager().setDefaultAudioDevice(AppRTCAudioManager.AudioDevice.EARPIECE);
1074        acquireProximityWakeLock();
1075    }
1076
1077    private void switchToSpeaker(View view) {
1078        requireRtpConnection().getAudioManager().setDefaultAudioDevice(AppRTCAudioManager.AudioDevice.SPEAKER_PHONE);
1079        releaseProximityWakeLock();
1080    }
1081
1082    private void retry(View view) {
1083        final Intent intent = getIntent();
1084        final Account account = extractAccount(intent);
1085        final Jid with = Jid.ofEscaped(intent.getStringExtra(EXTRA_WITH));
1086        final String lastAction = intent.getStringExtra(EXTRA_LAST_ACTION);
1087        final String action = intent.getAction();
1088        final Set<Media> media = actionToMedia(lastAction == null ? action : lastAction);
1089        this.rtpConnectionReference = null;
1090        Log.d(Config.LOGTAG, "attempting retry with " + with.toEscapedString());
1091        proposeJingleRtpSession(account, with, media);
1092    }
1093
1094    private void exit(final View view) {
1095        finish();
1096    }
1097
1098    private void recordVoiceMail(final View view) {
1099        final Intent intent = getIntent();
1100        final Account account = extractAccount(intent);
1101        final Jid with = Jid.ofEscaped(intent.getStringExtra(EXTRA_WITH));
1102        final Conversation conversation = xmppConnectionService.findOrCreateConversation(account, with, false, true);
1103        final Intent launchIntent = new Intent(this, ConversationsActivity.class);
1104        launchIntent.setAction(ConversationsActivity.ACTION_VIEW_CONVERSATION);
1105        launchIntent.putExtra(ConversationsActivity.EXTRA_CONVERSATION, conversation.getUuid());
1106        launchIntent.setFlags(intent.getFlags() | Intent.FLAG_ACTIVITY_CLEAR_TOP);
1107        launchIntent.putExtra(ConversationsActivity.EXTRA_POST_INIT_ACTION, ConversationsActivity.POST_ACTION_RECORD_VOICE);
1108        startActivity(launchIntent);
1109        finish();
1110    }
1111
1112    private Contact getWith() {
1113        final AbstractJingleConnection.Id id = requireRtpConnection().getId();
1114        final Account account = id.account;
1115        return account.getRoster().getContact(id.with);
1116    }
1117
1118    private JingleRtpConnection requireRtpConnection() {
1119        final JingleRtpConnection connection = this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
1120        if (connection == null) {
1121            throw new IllegalStateException("No RTP connection found");
1122        }
1123        return connection;
1124    }
1125
1126    @Override
1127    public void onJingleRtpConnectionUpdate(Account account, Jid with, final String sessionId, RtpEndUserState state) {
1128        Log.d(Config.LOGTAG, "onJingleRtpConnectionUpdate(" + state + ")");
1129        if (END_CARD.contains(state)) {
1130            Log.d(Config.LOGTAG, "end card reached");
1131            releaseProximityWakeLock();
1132            runOnUiThread(() -> getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON));
1133        }
1134        if (with.isBareJid()) {
1135            updateRtpSessionProposalState(account, with, state);
1136            return;
1137        }
1138        if (emptyReference(this.rtpConnectionReference)) {
1139            if (END_CARD.contains(state)) {
1140                Log.d(Config.LOGTAG, "not reinitializing session");
1141                return;
1142            }
1143            //this happens when going from proposed session to actual session
1144            reInitializeActivityWithRunningRtpSession(account, with, sessionId);
1145            return;
1146        }
1147        final AbstractJingleConnection.Id id = requireRtpConnection().getId();
1148        final boolean verified = requireRtpConnection().isVerified();
1149        final Set<Media> media = getMedia();
1150        final Contact contact = getWith();
1151        if (account == id.account && id.with.equals(with) && id.sessionId.equals(sessionId)) {
1152            if (state == RtpEndUserState.ENDED) {
1153                finish();
1154                return;
1155            }
1156            runOnUiThread(() -> {
1157                updateStateDisplay(state, media);
1158                updateVerifiedShield(verified && STATES_SHOWING_SWITCH_TO_CHAT.contains(state));
1159                updateButtonConfiguration(state, media);
1160                updateVideoViews(state);
1161                updateProfilePicture(state, contact);
1162                invalidateOptionsMenu();
1163            });
1164            if (END_CARD.contains(state)) {
1165                final JingleRtpConnection rtpConnection = requireRtpConnection();
1166                resetIntent(account, with, state, rtpConnection.getMedia());
1167                releaseVideoTracks(rtpConnection);
1168                this.rtpConnectionReference = null;
1169            }
1170        } else {
1171            Log.d(Config.LOGTAG, "received update for other rtp session");
1172        }
1173    }
1174
1175    @Override
1176    public void onAudioDeviceChanged(AppRTCAudioManager.AudioDevice selectedAudioDevice, Set<AppRTCAudioManager.AudioDevice> availableAudioDevices) {
1177        Log.d(Config.LOGTAG, "onAudioDeviceChanged in activity: selected:" + selectedAudioDevice + ", available:" + availableAudioDevices);
1178        try {
1179            if (getMedia().contains(Media.VIDEO)) {
1180                Log.d(Config.LOGTAG, "nothing to do; in video mode");
1181                return;
1182            }
1183            final RtpEndUserState endUserState = requireRtpConnection().getEndUserState();
1184            if (endUserState == RtpEndUserState.CONNECTED) {
1185                final AppRTCAudioManager audioManager = requireRtpConnection().getAudioManager();
1186                updateInCallButtonConfigurationSpeaker(
1187                        audioManager.getSelectedAudioDevice(),
1188                        audioManager.getAudioDevices().size()
1189                );
1190            } else if (END_CARD.contains(endUserState)) {
1191                Log.d(Config.LOGTAG, "onAudioDeviceChanged() nothing to do because end card has been reached");
1192            } else {
1193                putProximityWakeLockInProperState(selectedAudioDevice);
1194            }
1195        } catch (IllegalStateException e) {
1196            Log.d(Config.LOGTAG, "RTP connection was not available when audio device changed");
1197        }
1198    }
1199
1200    @Override
1201    protected void onSaveInstanceState(@NonNull @NotNull Bundle outState) {
1202        super.onSaveInstanceState(outState);
1203        int visibility = findViewById(R.id.action_dialpad).getVisibility();
1204        System.out.println("visibility onSave = " + visibility);
1205        outState.putInt("dialpad_visibility", visibility);
1206    }
1207
1208    private void updateRtpSessionProposalState(final Account account, final Jid with, final RtpEndUserState state) {
1209        final Intent currentIntent = getIntent();
1210        final String withExtra = currentIntent == null ? null : currentIntent.getStringExtra(EXTRA_WITH);
1211        if (withExtra == null) {
1212            return;
1213        }
1214        if (Jid.ofEscaped(withExtra).asBareJid().equals(with)) {
1215            runOnUiThread(() -> {
1216                updateVerifiedShield(false);
1217                updateStateDisplay(state);
1218                updateButtonConfiguration(state);
1219                updateProfilePicture(state);
1220                invalidateOptionsMenu();
1221            });
1222            resetIntent(account, with, state, actionToMedia(currentIntent.getAction()));
1223        }
1224    }
1225
1226    private void resetIntent(final Bundle extras) {
1227        final Intent intent = new Intent(Intent.ACTION_VIEW);
1228        intent.putExtras(extras);
1229        setIntent(intent);
1230    }
1231
1232    private void resetIntent(final Account account, Jid with, final RtpEndUserState state, final Set<Media> media) {
1233        final Intent intent = new Intent(Intent.ACTION_VIEW);
1234        intent.putExtra(EXTRA_ACCOUNT, account.getJid().toEscapedString());
1235        if (account.getRoster().getContact(with).getPresences().anySupport(Namespace.JINGLE_MESSAGE)) {
1236            intent.putExtra(EXTRA_WITH, with.asBareJid().toEscapedString());
1237        } else {
1238            intent.putExtra(EXTRA_WITH, with.toEscapedString());
1239        }
1240        intent.putExtra(EXTRA_LAST_REPORTED_STATE, state.toString());
1241        intent.putExtra(EXTRA_LAST_ACTION, media.contains(Media.VIDEO) ? ACTION_MAKE_VIDEO_CALL : ACTION_MAKE_VOICE_CALL);
1242        setIntent(intent);
1243    }
1244
1245    private static boolean emptyReference(final WeakReference<?> weakReference) {
1246        return weakReference == null || weakReference.get() == null;
1247    }
1248}