RtpSessionActivity.java

   1package eu.siacs.conversations.ui;
   2
   3import static eu.siacs.conversations.utils.PermissionUtils.getFirstDenied;
   4
   5import static java.util.Arrays.asList;
   6
   7import android.Manifest;
   8import android.annotation.SuppressLint;
   9import android.app.Activity;
  10import android.app.PictureInPictureParams;
  11import android.content.ActivityNotFoundException;
  12import android.content.Context;
  13import android.content.Intent;
  14import android.content.pm.ActivityInfo;
  15import android.content.pm.PackageManager;
  16import android.opengl.GLException;
  17import android.os.Build;
  18import android.os.Bundle;
  19import android.os.Handler;
  20import android.os.PowerManager;
  21import android.os.SystemClock;
  22import android.util.Log;
  23import android.util.Rational;
  24import android.view.KeyEvent;
  25import android.view.Menu;
  26import android.view.MenuItem;
  27import android.view.View;
  28import android.view.WindowManager;
  29import android.widget.Toast;
  30
  31import androidx.annotation.NonNull;
  32import androidx.annotation.Nullable;
  33import androidx.annotation.RequiresApi;
  34import androidx.annotation.StringRes;
  35import androidx.databinding.DataBindingUtil;
  36
  37import com.google.common.base.Optional;
  38import com.google.common.base.Preconditions;
  39import com.google.common.base.Throwables;
  40import com.google.common.collect.ImmutableList;
  41import com.google.common.collect.ImmutableSet;
  42import com.google.common.util.concurrent.FutureCallback;
  43import com.google.common.util.concurrent.Futures;
  44
  45import org.jetbrains.annotations.NotNull;
  46import org.webrtc.RendererCommon;
  47import org.webrtc.SurfaceViewRenderer;
  48import org.webrtc.VideoTrack;
  49
  50import java.lang.ref.WeakReference;
  51import java.util.Arrays;
  52import java.util.Collections;
  53import java.util.List;
  54import java.util.Set;
  55
  56import eu.siacs.conversations.Config;
  57import eu.siacs.conversations.R;
  58import eu.siacs.conversations.databinding.ActivityRtpSessionBinding;
  59import eu.siacs.conversations.entities.Account;
  60import eu.siacs.conversations.entities.Contact;
  61import eu.siacs.conversations.entities.Conversation;
  62import eu.siacs.conversations.services.AppRTCAudioManager;
  63import eu.siacs.conversations.services.XmppConnectionService;
  64import eu.siacs.conversations.ui.widget.DialpadView;
  65import eu.siacs.conversations.ui.util.AvatarWorkerTask;
  66import eu.siacs.conversations.ui.util.MainThreadExecutor;
  67import eu.siacs.conversations.ui.util.Rationals;
  68import eu.siacs.conversations.utils.PermissionUtils;
  69import eu.siacs.conversations.utils.TimeFrameUtils;
  70import eu.siacs.conversations.xmpp.Jid;
  71import eu.siacs.conversations.xmpp.jingle.AbstractJingleConnection;
  72import eu.siacs.conversations.xmpp.jingle.ContentAddition;
  73import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
  74import eu.siacs.conversations.xmpp.jingle.JingleRtpConnection;
  75import eu.siacs.conversations.xmpp.jingle.Media;
  76import eu.siacs.conversations.xmpp.jingle.RtpCapability;
  77import eu.siacs.conversations.xmpp.jingle.RtpEndUserState;
  78
  79import org.webrtc.RendererCommon;
  80import org.webrtc.SurfaceViewRenderer;
  81import org.webrtc.VideoTrack;
  82
  83import java.lang.ref.WeakReference;
  84import java.util.Arrays;
  85import java.util.Collections;
  86import java.util.List;
  87import java.util.Set;
  88
  89public class RtpSessionActivity extends XmppActivity
  90        implements XmppConnectionService.OnJingleRtpConnectionUpdate,
  91                eu.siacs.conversations.ui.widget.SurfaceViewRenderer.OnAspectRatioChanged {
  92
  93    public static final String EXTRA_WITH = "with";
  94    public static final String EXTRA_SESSION_ID = "session_id";
  95    public static final String EXTRA_LAST_REPORTED_STATE = "last_reported_state";
  96    public static final String EXTRA_LAST_ACTION = "last_action";
  97    public static final String ACTION_ACCEPT_CALL = "action_accept_call";
  98    public static final String ACTION_MAKE_VOICE_CALL = "action_make_voice_call";
  99    public static final String ACTION_MAKE_VIDEO_CALL = "action_make_video_call";
 100
 101    private static final int CALL_DURATION_UPDATE_INTERVAL = 333;
 102
 103    public static final List<RtpEndUserState> END_CARD =
 104            Arrays.asList(
 105                    RtpEndUserState.APPLICATION_ERROR,
 106                    RtpEndUserState.SECURITY_ERROR,
 107                    RtpEndUserState.DECLINED_OR_BUSY,
 108                    RtpEndUserState.CONNECTIVITY_ERROR,
 109                    RtpEndUserState.CONNECTIVITY_LOST_ERROR,
 110                    RtpEndUserState.RETRACTED);
 111    private static final List<RtpEndUserState> STATES_SHOWING_HELP_BUTTON =
 112            Arrays.asList(
 113                    RtpEndUserState.APPLICATION_ERROR,
 114                    RtpEndUserState.CONNECTIVITY_ERROR,
 115                    RtpEndUserState.SECURITY_ERROR);
 116    private static final List<RtpEndUserState> STATES_SHOWING_SWITCH_TO_CHAT =
 117            Arrays.asList(
 118                    RtpEndUserState.CONNECTING,
 119                    RtpEndUserState.CONNECTED,
 120                    RtpEndUserState.RECONNECTING,
 121                    RtpEndUserState.INCOMING_CONTENT_ADD);
 122    private static final List<RtpEndUserState> STATES_CONSIDERED_CONNECTED =
 123            Arrays.asList(RtpEndUserState.CONNECTED, RtpEndUserState.RECONNECTING);
 124    private static final List<RtpEndUserState> STATES_SHOWING_PIP_PLACEHOLDER =
 125            Arrays.asList(
 126                    RtpEndUserState.ACCEPTING_CALL,
 127                    RtpEndUserState.CONNECTING,
 128                    RtpEndUserState.RECONNECTING);
 129    private static final String PROXIMITY_WAKE_LOCK_TAG = "conversations:in-rtp-session";
 130    private static final int REQUEST_ACCEPT_CALL = 0x1111;
 131    private static final int REQUEST_ACCEPT_CONTENT = 0x1112;
 132    private static final int REQUEST_ADD_CONTENT = 0x1113;
 133    private WeakReference<JingleRtpConnection> rtpConnectionReference;
 134
 135    private ActivityRtpSessionBinding binding;
 136    private PowerManager.WakeLock mProximityWakeLock;
 137
 138    private final Handler mHandler = new Handler();
 139    private final Runnable mTickExecutor =
 140            new Runnable() {
 141                @Override
 142                public void run() {
 143                    updateCallDuration();
 144                    mHandler.postDelayed(mTickExecutor, CALL_DURATION_UPDATE_INTERVAL);
 145                }
 146            };
 147
 148    private static Set<Media> actionToMedia(final String action) {
 149        if (ACTION_MAKE_VIDEO_CALL.equals(action)) {
 150            return ImmutableSet.of(Media.AUDIO, Media.VIDEO);
 151        } else {
 152            return ImmutableSet.of(Media.AUDIO);
 153        }
 154    }
 155
 156    private static void addSink(
 157            final VideoTrack videoTrack, final SurfaceViewRenderer surfaceViewRenderer) {
 158        try {
 159            videoTrack.addSink(surfaceViewRenderer);
 160        } catch (final IllegalStateException e) {
 161            Log.e(
 162                    Config.LOGTAG,
 163                    "possible race condition on trying to display video track. ignoring",
 164                    e);
 165        }
 166    }
 167
 168    @Override
 169    public void onCreate(Bundle savedInstanceState) {
 170        super.onCreate(savedInstanceState);
 171        getWindow()
 172                .addFlags(
 173                        WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
 174                                | WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD
 175                                | WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED
 176                                | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);
 177        this.binding = DataBindingUtil.setContentView(this, R.layout.activity_rtp_session);
 178        setSupportActionBar(binding.toolbar);
 179
 180        binding.dialpad.setClickConsumer(tag -> {
 181            final JingleRtpConnection connection =
 182                this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
 183            if (connection != null) connection.applyDtmfTone(tag);
 184        });
 185
 186        if (savedInstanceState != null) {
 187            boolean dialpadVisible = savedInstanceState.getBoolean("dialpad_visible");
 188            binding.dialpad.setVisibility(dialpadVisible ? View.VISIBLE : View.GONE);
 189        }
 190    }
 191
 192    @Override
 193    public boolean onCreateOptionsMenu(final Menu menu) {
 194        getMenuInflater().inflate(R.menu.activity_rtp_session, menu);
 195        final MenuItem help = menu.findItem(R.id.action_help);
 196        final MenuItem gotoChat = menu.findItem(R.id.action_goto_chat);
 197        final MenuItem dialpad = menu.findItem(R.id.action_dialpad);
 198        final MenuItem switchToVideo = menu.findItem(R.id.action_switch_to_video);
 199        help.setVisible(Config.HELP != null && isHelpButtonVisible());
 200        gotoChat.setVisible(isSwitchToConversationVisible());
 201        switchToVideo.setVisible(isSwitchToVideoVisible());
 202        dialpad.setVisible(isAudioOnlyConversation());
 203        return super.onCreateOptionsMenu(menu);
 204    }
 205
 206    @Override
 207    public boolean onKeyDown(final int keyCode, final KeyEvent event) {
 208        if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN) {
 209            if (xmppConnectionService != null) {
 210                if (xmppConnectionService.getNotificationService().stopSoundAndVibration()) {
 211                    return true;
 212                }
 213            }
 214        }
 215        return super.onKeyDown(keyCode, event);
 216    }
 217
 218    private boolean isHelpButtonVisible() {
 219        try {
 220            return STATES_SHOWING_HELP_BUTTON.contains(requireRtpConnection().getEndUserState());
 221        } catch (IllegalStateException e) {
 222            final Intent intent = getIntent();
 223            final String state =
 224                    intent != null ? intent.getStringExtra(EXTRA_LAST_REPORTED_STATE) : null;
 225            if (state != null) {
 226                return STATES_SHOWING_HELP_BUTTON.contains(RtpEndUserState.valueOf(state));
 227            } else {
 228                return false;
 229            }
 230        }
 231    }
 232
 233    private boolean isSwitchToConversationVisible() {
 234        final JingleRtpConnection connection =
 235                this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
 236        return connection != null
 237                && STATES_SHOWING_SWITCH_TO_CHAT.contains(connection.getEndUserState());
 238    }
 239
 240    private boolean isAudioOnlyConversation() {
 241        final JingleRtpConnection connection =
 242                this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
 243
 244        return connection != null && !connection.getMedia().contains(Media.VIDEO);
 245    }
 246
 247    private boolean isSwitchToVideoVisible() {
 248        final JingleRtpConnection connection =
 249                this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
 250        if (connection == null) {
 251            return false;
 252        }
 253        return connection.isSwitchToVideoAvailable();
 254    }
 255
 256    private void switchToConversation() {
 257        final Contact contact = getWith();
 258        final Conversation conversation =
 259                xmppConnectionService.findOrCreateConversation(
 260                        contact.getAccount(), contact.getJid(), false, true);
 261        switchToConversation(conversation);
 262    }
 263
 264    private void toggleDialpadVisibility() {
 265        if (binding.dialpad.getVisibility() == View.VISIBLE) {
 266            binding.dialpad.setVisibility(View.GONE);
 267        }
 268        else {
 269            binding.dialpad.setVisibility(View.VISIBLE);
 270        }
 271    }
 272
 273    public boolean onOptionsItemSelected(final MenuItem item) {
 274        final var itemItem = item.getItemId();
 275        if (itemItem == R.id.action_help) {
 276            launchHelpInBrowser();
 277            return true;
 278        } else if (itemItem == R.id.action_goto_chat) {
 279            switchToConversation();
 280            return true;
 281        } else if (itemItem == R.id.action_dialpad) {
 282            toggleDialpadVisibility();
 283            return true;
 284        } else if (itemItem == R.id.action_switch_to_video) {
 285            requestPermissionAndSwitchToVideo();
 286            return true;
 287        } else {
 288            return super.onOptionsItemSelected(item);
 289        }
 290    }
 291
 292    private void launchHelpInBrowser() {
 293        final Intent intent = new Intent(Intent.ACTION_VIEW, Config.HELP);
 294        try {
 295            startActivity(intent);
 296        } catch (final ActivityNotFoundException e) {
 297            Toast.makeText(this, R.string.no_application_found_to_open_link, Toast.LENGTH_LONG)
 298                    .show();
 299        }
 300    }
 301
 302    private void endCall(View view) {
 303        endCall();
 304    }
 305
 306    private void endCall() {
 307        if (this.rtpConnectionReference == null) {
 308            retractSessionProposal();
 309            finish();
 310        } else {
 311            requireRtpConnection().endCall();
 312        }
 313    }
 314
 315    private void retractSessionProposal() {
 316        final Intent intent = getIntent();
 317        final String action = intent.getAction();
 318        final Account account = extractAccount(intent);
 319        final Jid with = Jid.ofEscaped(intent.getStringExtra(EXTRA_WITH));
 320        final String state = intent.getStringExtra(EXTRA_LAST_REPORTED_STATE);
 321        if (!Intent.ACTION_VIEW.equals(action)
 322                || state == null
 323                || !END_CARD.contains(RtpEndUserState.valueOf(state))) {
 324            resetIntent(
 325                    account, with, RtpEndUserState.RETRACTED, actionToMedia(intent.getAction()));
 326        }
 327        xmppConnectionService
 328                .getJingleConnectionManager()
 329                .retractSessionProposal(account, with.asBareJid());
 330    }
 331
 332    private void rejectCall(View view) {
 333        requireRtpConnection().rejectCall();
 334        finish();
 335    }
 336
 337    private void acceptCall(View view) {
 338        requestPermissionsAndAcceptCall();
 339    }
 340
 341    private void acceptContentAdd() {
 342        try {
 343            requireRtpConnection()
 344                    .acceptContentAdd(requireRtpConnection().getPendingContentAddition().summary);
 345        } catch (final IllegalStateException e) {
 346            Toast.makeText(this, e.getMessage(), Toast.LENGTH_SHORT).show();
 347        }
 348    }
 349
 350    private void requestPermissionAndSwitchToVideo() {
 351        final List<String> permissions = permissions(ImmutableSet.of(Media.VIDEO, Media.AUDIO));
 352        if (PermissionUtils.hasPermission(this, permissions, REQUEST_ADD_CONTENT)) {
 353            switchToVideo();
 354        }
 355    }
 356
 357    private void switchToVideo() {
 358        try {
 359            requireRtpConnection().addMedia(Media.VIDEO);
 360        } catch (final IllegalStateException e) {
 361            Toast.makeText(this, e.getMessage(), Toast.LENGTH_SHORT).show();
 362        }
 363    }
 364
 365    private void acceptContentAdd(final ContentAddition contentAddition) {
 366        if (contentAddition == null
 367                || contentAddition.direction != ContentAddition.Direction.INCOMING) {
 368            Log.d(Config.LOGTAG, "ignore press on content-accept button");
 369            return;
 370        }
 371        requestPermissionAndAcceptContentAdd(contentAddition);
 372    }
 373
 374    private void requestPermissionAndAcceptContentAdd(final ContentAddition contentAddition) {
 375        final List<String> permissions = permissions(contentAddition.media());
 376        if (PermissionUtils.hasPermission(this, permissions, REQUEST_ACCEPT_CONTENT)) {
 377            try {
 378                requireRtpConnection().acceptContentAdd(contentAddition.summary);
 379            } catch (final IllegalStateException e) {
 380                Toast.makeText(this, e.getMessage(), Toast.LENGTH_SHORT).show();
 381            }
 382        }
 383    }
 384
 385    private void rejectContentAdd(final View view) {
 386        requireRtpConnection().rejectContentAdd();
 387    }
 388
 389    private void requestPermissionsAndAcceptCall() {
 390        final List<String> permissions = permissions(getMedia());
 391        if (PermissionUtils.hasPermission(this, permissions, REQUEST_ACCEPT_CALL)) {
 392            putScreenInCallMode();
 393            checkRecorderAndAcceptCall();
 394        }
 395    }
 396
 397    private List<String> permissions(final Set<Media> media) {
 398        final ImmutableList.Builder<String> permissions = ImmutableList.builder();
 399        if (media.contains(Media.VIDEO)) {
 400            permissions.add(Manifest.permission.CAMERA).add(Manifest.permission.RECORD_AUDIO);
 401        } else {
 402            permissions.add(Manifest.permission.RECORD_AUDIO);
 403        }
 404        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
 405            permissions.add(Manifest.permission.BLUETOOTH_CONNECT);
 406        }
 407        return permissions.build();
 408    }
 409
 410    private void checkRecorderAndAcceptCall() {
 411        checkMicrophoneAvailabilityAsync();
 412        try {
 413            requireRtpConnection().acceptCall();
 414        } catch (final IllegalStateException e) {
 415            Toast.makeText(this, e.getMessage(), Toast.LENGTH_SHORT).show();
 416        }
 417    }
 418
 419    private void checkMicrophoneAvailabilityAsync() {
 420        new Thread(new MicrophoneAvailabilityCheck(this)).start();
 421    }
 422
 423    private static class MicrophoneAvailabilityCheck implements Runnable {
 424
 425        private final WeakReference<Activity> activityReference;
 426
 427        private MicrophoneAvailabilityCheck(final Activity activity) {
 428            this.activityReference = new WeakReference<>(activity);
 429        }
 430
 431        @Override
 432        public void run() {
 433            final long start = SystemClock.elapsedRealtime();
 434            final boolean isMicrophoneAvailable = AppRTCAudioManager.isMicrophoneAvailable();
 435            final long stop = SystemClock.elapsedRealtime();
 436            Log.d(Config.LOGTAG, "checking microphone availability took " + (stop - start) + "ms");
 437            if (isMicrophoneAvailable) {
 438                return;
 439            }
 440            final Activity activity = activityReference.get();
 441            if (activity == null) {
 442                return;
 443            }
 444            activity.runOnUiThread(
 445                    () ->
 446                            Toast.makeText(
 447                                            activity,
 448                                            R.string.microphone_unavailable,
 449                                            Toast.LENGTH_LONG)
 450                                    .show());
 451        }
 452    }
 453
 454    private void putScreenInCallMode() {
 455        putScreenInCallMode(requireRtpConnection().getMedia());
 456    }
 457
 458    private void putScreenInCallMode(final Set<Media> media) {
 459        getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
 460        if (Media.audioOnly(media)) {
 461            final JingleRtpConnection rtpConnection =
 462                    rtpConnectionReference != null ? rtpConnectionReference.get() : null;
 463            final AppRTCAudioManager audioManager =
 464                    rtpConnection == null ? null : rtpConnection.getAudioManager();
 465            if (audioManager == null
 466                    || audioManager.getSelectedAudioDevice()
 467                            == AppRTCAudioManager.AudioDevice.EARPIECE) {
 468                acquireProximityWakeLock();
 469            }
 470        }
 471        lockOrientation(media);
 472    }
 473
 474    private void lockOrientation(final Set<Media> media) {
 475        if (Media.audioOnly(media)) {
 476            setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
 477        } else {
 478            setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED);
 479        }
 480    }
 481
 482    @SuppressLint("WakelockTimeout")
 483    private void acquireProximityWakeLock() {
 484        final PowerManager powerManager = (PowerManager) getSystemService(Context.POWER_SERVICE);
 485        if (powerManager == null) {
 486            Log.e(Config.LOGTAG, "power manager not available");
 487            return;
 488        }
 489        if (isFinishing()) {
 490            Log.e(Config.LOGTAG, "do not acquire wakelock. activity is finishing");
 491            return;
 492        }
 493        if (this.mProximityWakeLock == null) {
 494            this.mProximityWakeLock =
 495                    powerManager.newWakeLock(
 496                            PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK, PROXIMITY_WAKE_LOCK_TAG);
 497        }
 498        if (!this.mProximityWakeLock.isHeld()) {
 499            Log.d(Config.LOGTAG, "acquiring proximity wake lock");
 500            this.mProximityWakeLock.acquire();
 501        }
 502    }
 503
 504    private void releaseProximityWakeLock() {
 505        if (this.mProximityWakeLock != null && mProximityWakeLock.isHeld()) {
 506            Log.d(Config.LOGTAG, "releasing proximity wake lock");
 507            this.mProximityWakeLock.release(PowerManager.RELEASE_FLAG_WAIT_FOR_NO_PROXIMITY);
 508            this.mProximityWakeLock = null;
 509        }
 510    }
 511
 512    private void putProximityWakeLockInProperState(
 513            final AppRTCAudioManager.AudioDevice audioDevice) {
 514        if (audioDevice == AppRTCAudioManager.AudioDevice.EARPIECE) {
 515            acquireProximityWakeLock();
 516        } else {
 517            releaseProximityWakeLock();
 518        }
 519    }
 520
 521    @Override
 522    protected void refreshUiReal() {}
 523
 524    @Override
 525    public void onNewIntent(final Intent intent) {
 526        Log.d(Config.LOGTAG, this.getClass().getName() + ".onNewIntent()");
 527        super.onNewIntent(intent);
 528        setIntent(intent);
 529        if (xmppConnectionService == null) {
 530            Log.d(
 531                    Config.LOGTAG,
 532                    "RtpSessionActivity: background service wasn't bound in onNewIntent()");
 533            return;
 534        }
 535        final Account account = extractAccount(intent);
 536        final String action = intent.getAction();
 537        final Jid with = Jid.ofEscaped(intent.getStringExtra(EXTRA_WITH));
 538        final String sessionId = intent.getStringExtra(EXTRA_SESSION_ID);
 539        if (sessionId != null) {
 540            Log.d(Config.LOGTAG, "reinitializing from onNewIntent()");
 541            if (initializeActivityWithRunningRtpSession(account, with, sessionId)) {
 542                return;
 543            }
 544            if (ACTION_ACCEPT_CALL.equals(intent.getAction())) {
 545                Log.d(Config.LOGTAG, "accepting call from onNewIntent()");
 546                requestPermissionsAndAcceptCall();
 547                resetIntent(intent.getExtras());
 548            }
 549        } else if (asList(ACTION_MAKE_VIDEO_CALL, ACTION_MAKE_VOICE_CALL).contains(action)) {
 550            proposeJingleRtpSession(account, with, actionToMedia(action));
 551            setWith(account.getRoster().getContact(with), null);
 552        } else {
 553            throw new IllegalStateException("received onNewIntent without sessionId");
 554        }
 555    }
 556
 557    @Override
 558    void onBackendConnected() {
 559        final Intent intent = getIntent();
 560        final String action = intent.getAction();
 561        final Account account = extractAccount(intent);
 562        final Jid with = Jid.ofEscaped(intent.getStringExtra(EXTRA_WITH));
 563        final String sessionId = intent.getStringExtra(EXTRA_SESSION_ID);
 564        if (sessionId != null) {
 565            if (initializeActivityWithRunningRtpSession(account, with, sessionId)) {
 566                return;
 567            }
 568            if (ACTION_ACCEPT_CALL.equals(intent.getAction())) {
 569                Log.d(Config.LOGTAG, "intent action was accept");
 570                requestPermissionsAndAcceptCall();
 571                resetIntent(intent.getExtras());
 572            }
 573        } else if (asList(ACTION_MAKE_VIDEO_CALL, ACTION_MAKE_VOICE_CALL).contains(action)) {
 574            proposeJingleRtpSession(account, with, actionToMedia(action));
 575            setWith(account.getRoster().getContact(with), null);
 576        } else if (Intent.ACTION_VIEW.equals(action)) {
 577            final String extraLastState = intent.getStringExtra(EXTRA_LAST_REPORTED_STATE);
 578            final RtpEndUserState state =
 579                    extraLastState == null ? null : RtpEndUserState.valueOf(extraLastState);
 580            if (state != null) {
 581                Log.d(Config.LOGTAG, "restored last state from intent extra");
 582                updateButtonConfiguration(state);
 583                updateVerifiedShield(false);
 584                updateStateDisplay(state);
 585                updateIncomingCallScreen(state);
 586                invalidateOptionsMenu();
 587            }
 588            setWith(account.getRoster().getContact(with), state);
 589            if (xmppConnectionService
 590                    .getJingleConnectionManager()
 591                    .fireJingleRtpConnectionStateUpdates()) {
 592                return;
 593            }
 594            if (END_CARD.contains(state)
 595                    || xmppConnectionService
 596                            .getJingleConnectionManager()
 597                            .hasMatchingProposal(account, with)) {
 598                return;
 599            }
 600            Log.d(Config.LOGTAG, "restored state (" + state + ") was not an end card. finishing");
 601            finish();
 602        }
 603    }
 604
 605    private void setWith(final RtpEndUserState state) {
 606        setWith(getWith(), state);
 607    }
 608
 609    private void setWith(final Contact contact, final RtpEndUserState state) {
 610        binding.with.setText(contact.getDisplayName());
 611        if (Arrays.asList(RtpEndUserState.INCOMING_CALL, RtpEndUserState.ACCEPTING_CALL)
 612                .contains(state)) {
 613            binding.withJid.setText(contact.getJid().asBareJid().toEscapedString());
 614            binding.withJid.setVisibility(View.VISIBLE);
 615        } else {
 616            binding.withJid.setVisibility(View.GONE);
 617        }
 618    }
 619
 620    private void proposeJingleRtpSession(
 621            final Account account, final Jid with, final Set<Media> media) {
 622        checkMicrophoneAvailabilityAsync();
 623        if (with.isBareJid()) {
 624            xmppConnectionService
 625                    .getJingleConnectionManager()
 626                    .proposeJingleRtpSession(account, with, media);
 627        } else {
 628            final String sessionId =
 629                    xmppConnectionService
 630                            .getJingleConnectionManager()
 631                            .initializeRtpSession(account, with, media);
 632            initializeActivityWithRunningRtpSession(account, with, sessionId);
 633            resetIntent(account, with, sessionId);
 634        }
 635        putScreenInCallMode(media);
 636    }
 637
 638    @Override
 639    public void onRequestPermissionsResult(
 640            int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
 641        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
 642        final PermissionUtils.PermissionResult permissionResult =
 643                PermissionUtils.removeBluetoothConnect(permissions, grantResults);
 644        if (PermissionUtils.allGranted(permissionResult.grantResults)) {
 645            if (requestCode == REQUEST_ACCEPT_CALL) {
 646                checkRecorderAndAcceptCall();
 647            } else if (requestCode == REQUEST_ACCEPT_CONTENT) {
 648                acceptContentAdd();
 649            } else if (requestCode == REQUEST_ADD_CONTENT) {
 650                switchToVideo();
 651            }
 652        } else {
 653            @StringRes int res;
 654            final String firstDenied =
 655                    getFirstDenied(permissionResult.grantResults, permissionResult.permissions);
 656            if (firstDenied == null) {
 657                return;
 658            }
 659            if (Manifest.permission.RECORD_AUDIO.equals(firstDenied)) {
 660                res = R.string.no_microphone_permission;
 661            } else if (Manifest.permission.CAMERA.equals(firstDenied)) {
 662                res = R.string.no_camera_permission;
 663            } else {
 664                throw new IllegalStateException("Invalid permission result request");
 665            }
 666            Toast.makeText(this, getString(res, getString(R.string.app_name)), Toast.LENGTH_SHORT)
 667                    .show();
 668        }
 669    }
 670
 671    @Override
 672    public void onStart() {
 673        super.onStart();
 674        mHandler.postDelayed(mTickExecutor, CALL_DURATION_UPDATE_INTERVAL);
 675        this.binding.remoteVideo.setOnAspectRatioChanged(this);
 676    }
 677
 678    @Override
 679    public void onStop() {
 680        mHandler.removeCallbacks(mTickExecutor);
 681        binding.remoteVideo.release();
 682        binding.remoteVideo.setOnAspectRatioChanged(null);
 683        binding.localVideo.release();
 684        final WeakReference<JingleRtpConnection> weakReference = this.rtpConnectionReference;
 685        final JingleRtpConnection jingleRtpConnection =
 686                weakReference == null ? null : weakReference.get();
 687        if (jingleRtpConnection != null) {
 688            releaseVideoTracks(jingleRtpConnection);
 689        }
 690        releaseProximityWakeLock();
 691        super.onStop();
 692    }
 693
 694    private void releaseVideoTracks(final JingleRtpConnection jingleRtpConnection) {
 695        final Optional<VideoTrack> remoteVideo = jingleRtpConnection.getRemoteVideoTrack();
 696        if (remoteVideo.isPresent()) {
 697            remoteVideo.get().removeSink(binding.remoteVideo);
 698        }
 699        final Optional<VideoTrack> localVideo = jingleRtpConnection.getLocalVideoTrack();
 700        if (localVideo.isPresent()) {
 701            localVideo.get().removeSink(binding.localVideo);
 702        }
 703    }
 704
 705    @Override
 706    public void onBackPressed() {
 707        if (isConnected()) {
 708            if (switchToPictureInPicture()) {
 709                return;
 710            }
 711        } else {
 712            endCall();
 713        }
 714        super.onBackPressed();
 715    }
 716
 717    @Override
 718    public void onUserLeaveHint() {
 719        super.onUserLeaveHint();
 720        if (switchToPictureInPicture()) {
 721            return;
 722        }
 723        // TODO apparently this method is not getting called on Android 10 when using the task
 724        // switcher
 725        if (emptyReference(rtpConnectionReference) && xmppConnectionService != null) {
 726            retractSessionProposal();
 727        }
 728    }
 729
 730    private boolean isConnected() {
 731        final JingleRtpConnection connection =
 732                this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
 733        final RtpEndUserState endUserState =
 734                connection == null ? null : connection.getEndUserState();
 735        return STATES_CONSIDERED_CONNECTED.contains(endUserState)
 736                || endUserState == RtpEndUserState.INCOMING_CONTENT_ADD;
 737    }
 738
 739    private boolean switchToPictureInPicture() {
 740        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O && deviceSupportsPictureInPicture()) {
 741            if (shouldBePictureInPicture()) {
 742                startPictureInPicture();
 743                return true;
 744            }
 745        }
 746        return false;
 747    }
 748
 749    @RequiresApi(api = Build.VERSION_CODES.O)
 750    private void startPictureInPicture() {
 751        try {
 752            final Rational rational = this.binding.remoteVideo.getAspectRatio();
 753            final Rational clippedRational = Rationals.clip(rational);
 754            Log.d(
 755                    Config.LOGTAG,
 756                    "suggested rational " + rational + ". clipped to " + clippedRational);
 757            enterPictureInPictureMode(
 758                    new PictureInPictureParams.Builder().setAspectRatio(clippedRational).build());
 759        } catch (final IllegalStateException e) {
 760            // this sometimes happens on Samsung phones (possibly when Knox is enabled)
 761            Log.w(Config.LOGTAG, "unable to enter picture in picture mode", e);
 762        }
 763    }
 764
 765    @Override
 766    public void onAspectRatioChanged(final Rational rational) {
 767        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O && isPictureInPicture()) {
 768            final Rational clippedRational = Rationals.clip(rational);
 769            Log.d(
 770                    Config.LOGTAG,
 771                    "suggested rational after aspect ratio change "
 772                            + rational
 773                            + ". clipped to "
 774                            + clippedRational);
 775            setPictureInPictureParams(
 776                    new PictureInPictureParams.Builder().setAspectRatio(clippedRational).build());
 777        }
 778    }
 779
 780    private boolean deviceSupportsPictureInPicture() {
 781        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 782            return getPackageManager().hasSystemFeature(PackageManager.FEATURE_PICTURE_IN_PICTURE);
 783        } else {
 784            return false;
 785        }
 786    }
 787
 788    private boolean shouldBePictureInPicture() {
 789        try {
 790            final JingleRtpConnection rtpConnection = requireRtpConnection();
 791            return rtpConnection.getMedia().contains(Media.VIDEO)
 792                    && Arrays.asList(
 793                                    RtpEndUserState.ACCEPTING_CALL,
 794                                    RtpEndUserState.CONNECTING,
 795                                    RtpEndUserState.CONNECTED)
 796                            .contains(rtpConnection.getEndUserState());
 797        } catch (final IllegalStateException e) {
 798            return false;
 799        }
 800    }
 801
 802    private boolean initializeActivityWithRunningRtpSession(
 803            final Account account, Jid with, String sessionId) {
 804        final WeakReference<JingleRtpConnection> reference =
 805                xmppConnectionService
 806                        .getJingleConnectionManager()
 807                        .findJingleRtpConnection(account, with, sessionId);
 808        if (reference == null || reference.get() == null) {
 809            final JingleConnectionManager.TerminatedRtpSession terminatedRtpSession =
 810                    xmppConnectionService
 811                            .getJingleConnectionManager()
 812                            .getTerminalSessionState(with, sessionId);
 813            if (terminatedRtpSession == null) {
 814                Log.e(Config.LOGTAG, "failed to initialize activity with running rtp session. session not found");
 815                finish();
 816                return true;
 817            }
 818            initializeWithTerminatedSessionState(account, with, terminatedRtpSession);
 819            return true;
 820        }
 821        this.rtpConnectionReference = reference;
 822        final RtpEndUserState currentState = requireRtpConnection().getEndUserState();
 823        final boolean verified = requireRtpConnection().isVerified();
 824        if (currentState == RtpEndUserState.ENDED) {
 825            finish();
 826            return true;
 827        }
 828        final Set<Media> media = getMedia();
 829        final ContentAddition contentAddition = getPendingContentAddition();
 830        if (currentState == RtpEndUserState.INCOMING_CALL) {
 831            getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
 832        }
 833        if (JingleRtpConnection.STATES_SHOWING_ONGOING_CALL.contains(
 834                requireRtpConnection().getState())) {
 835            putScreenInCallMode();
 836        }
 837        setWith(currentState);
 838        updateVideoViews(currentState);
 839        updateStateDisplay(currentState, media, contentAddition);
 840        updateVerifiedShield(verified && STATES_SHOWING_SWITCH_TO_CHAT.contains(currentState));
 841        updateButtonConfiguration(currentState, media, contentAddition);
 842        updateIncomingCallScreen(currentState);
 843        invalidateOptionsMenu();
 844        return false;
 845    }
 846
 847    private void initializeWithTerminatedSessionState(
 848            final Account account,
 849            final Jid with,
 850            final JingleConnectionManager.TerminatedRtpSession terminatedRtpSession) {
 851        Log.d(Config.LOGTAG, "initializeWithTerminatedSessionState()");
 852        if (terminatedRtpSession.state == RtpEndUserState.ENDED) {
 853            finish();
 854            return;
 855        }
 856        final RtpEndUserState state = terminatedRtpSession.state;
 857        resetIntent(account, with, terminatedRtpSession.state, terminatedRtpSession.media);
 858        updateButtonConfiguration(state);
 859        updateStateDisplay(state);
 860        updateIncomingCallScreen(state);
 861        updateCallDuration();
 862        updateVerifiedShield(false);
 863        invalidateOptionsMenu();
 864        setWith(account.getRoster().getContact(with), state);
 865    }
 866
 867    private void reInitializeActivityWithRunningRtpSession(
 868            final Account account, Jid with, String sessionId) {
 869        runOnUiThread(() -> initializeActivityWithRunningRtpSession(account, with, sessionId));
 870        resetIntent(account, with, sessionId);
 871    }
 872
 873    private void resetIntent(final Account account, final Jid with, final String sessionId) {
 874        final Intent intent = new Intent(Intent.ACTION_VIEW);
 875        intent.putExtra(EXTRA_ACCOUNT, account.getJid().toEscapedString());
 876        intent.putExtra(EXTRA_WITH, with.toEscapedString());
 877        intent.putExtra(EXTRA_SESSION_ID, sessionId);
 878        setIntent(intent);
 879    }
 880
 881    private void ensureSurfaceViewRendererIsSetup(final SurfaceViewRenderer surfaceViewRenderer) {
 882        surfaceViewRenderer.setVisibility(View.VISIBLE);
 883        try {
 884            surfaceViewRenderer.init(requireRtpConnection().getEglBaseContext(), null);
 885        } catch (final IllegalStateException ignored) {
 886            // SurfaceViewRenderer was already initialized
 887        } catch (final RuntimeException e) {
 888            if (Throwables.getRootCause(e) instanceof GLException glException) {
 889                Log.w(Config.LOGTAG, "could not set up hardware renderer", glException);
 890            }
 891        }
 892        surfaceViewRenderer.setEnableHardwareScaler(true);
 893    }
 894
 895    private void updateStateDisplay(final RtpEndUserState state) {
 896        updateStateDisplay(state, Collections.emptySet(), null);
 897    }
 898
 899    private void updateStateDisplay(
 900            final RtpEndUserState state,
 901            final Set<Media> media,
 902            final ContentAddition contentAddition) {
 903        switch (state) {
 904            case INCOMING_CALL -> {
 905                Preconditions.checkArgument(media.size() > 0, "Media must not be empty");
 906                if (media.contains(Media.VIDEO)) {
 907                    setTitle(R.string.rtp_state_incoming_video_call);
 908                } else {
 909                    setTitle(R.string.rtp_state_incoming_call);
 910                }
 911            }
 912            case INCOMING_CONTENT_ADD -> {
 913                if (contentAddition != null && contentAddition.media().contains(Media.VIDEO)) {
 914                    setTitle(R.string.rtp_state_content_add_video);
 915                } else {
 916                    setTitle(R.string.rtp_state_content_add);
 917                }
 918            }
 919            case CONNECTING -> setTitle(R.string.rtp_state_connecting);
 920            case CONNECTED -> setTitle(R.string.rtp_state_connected);
 921            case RECONNECTING -> setTitle(R.string.rtp_state_reconnecting);
 922            case ACCEPTING_CALL -> setTitle(R.string.rtp_state_accepting_call);
 923            case ENDING_CALL -> setTitle(R.string.rtp_state_ending_call);
 924            case FINDING_DEVICE -> setTitle(R.string.rtp_state_finding_device);
 925            case RINGING -> setTitle(R.string.rtp_state_ringing);
 926            case DECLINED_OR_BUSY -> setTitle(R.string.rtp_state_declined_or_busy);
 927            case CONNECTIVITY_ERROR -> setTitle(R.string.rtp_state_connectivity_error);
 928            case CONNECTIVITY_LOST_ERROR -> setTitle(R.string.rtp_state_connectivity_lost_error);
 929            case RETRACTED -> setTitle(R.string.rtp_state_retracted);
 930            case APPLICATION_ERROR -> setTitle(R.string.rtp_state_application_failure);
 931            case SECURITY_ERROR -> setTitle(R.string.rtp_state_security_error);
 932            case ENDED -> throw new IllegalStateException(
 933                    "Activity should have called finishAndReleaseWakeLock();");
 934            default -> throw new IllegalStateException(
 935                    String.format("State %s has not been handled in UI", state));
 936        }
 937    }
 938
 939    private void updateVerifiedShield(final boolean verified) {
 940        if (isPictureInPicture()) {
 941            this.binding.verified.setVisibility(View.GONE);
 942            return;
 943        }
 944        this.binding.verified.setVisibility(verified ? View.VISIBLE : View.GONE);
 945    }
 946
 947    private void updateIncomingCallScreen(final RtpEndUserState state) {
 948        updateIncomingCallScreen(state, null);
 949    }
 950
 951    private void updateIncomingCallScreen(final RtpEndUserState state, final Contact contact) {
 952        if (state == RtpEndUserState.INCOMING_CALL || state == RtpEndUserState.ACCEPTING_CALL) {
 953            final boolean show = getResources().getBoolean(R.bool.show_avatar_incoming_call);
 954            if (show) {
 955                binding.contactPhoto.setVisibility(View.VISIBLE);
 956                if (contact == null) {
 957                    AvatarWorkerTask.loadAvatar(
 958                            getWith(), binding.contactPhoto, R.dimen.publish_avatar_size);
 959                } else {
 960                    AvatarWorkerTask.loadAvatar(
 961                            contact, binding.contactPhoto, R.dimen.publish_avatar_size);
 962                }
 963            } else {
 964                binding.contactPhoto.setVisibility(View.GONE);
 965            }
 966            final Account account = contact == null ? getWith().getAccount() : contact.getAccount();
 967            binding.usingAccount.setVisibility(View.VISIBLE);
 968            binding.usingAccount.setText(
 969                    getString(
 970                            R.string.using_account,
 971                            account.getJid().asBareJid().toEscapedString()));
 972        } else {
 973            binding.usingAccount.setVisibility(View.GONE);
 974            binding.contactPhoto.setVisibility(View.GONE);
 975        }
 976    }
 977
 978    private Set<Media> getMedia() {
 979        return requireRtpConnection().getMedia();
 980    }
 981
 982    public ContentAddition getPendingContentAddition() {
 983        return requireRtpConnection().getPendingContentAddition();
 984    }
 985
 986    private void updateButtonConfiguration(final RtpEndUserState state) {
 987        updateButtonConfiguration(state, Collections.emptySet(), null);
 988    }
 989
 990    @SuppressLint("RestrictedApi")
 991    private void updateButtonConfiguration(
 992            final RtpEndUserState state,
 993            final Set<Media> media,
 994            final ContentAddition contentAddition) {
 995        if (state == RtpEndUserState.ENDING_CALL || isPictureInPicture()) {
 996            this.binding.rejectCall.setVisibility(View.INVISIBLE);
 997            this.binding.endCall.setVisibility(View.INVISIBLE);
 998            this.binding.acceptCall.setVisibility(View.INVISIBLE);
 999        } else if (state == RtpEndUserState.INCOMING_CALL) {
1000            this.binding.rejectCall.setContentDescription(getString(R.string.dismiss_call));
1001            this.binding.rejectCall.setOnClickListener(this::rejectCall);
1002            this.binding.rejectCall.setImageResource(R.drawable.ic_call_end_white_48dp);
1003            this.binding.rejectCall.setVisibility(View.VISIBLE);
1004            this.binding.endCall.setVisibility(View.INVISIBLE);
1005            this.binding.acceptCall.setContentDescription(getString(R.string.answer_call));
1006            this.binding.acceptCall.setOnClickListener(this::acceptCall);
1007            this.binding.acceptCall.setImageResource(R.drawable.ic_call_white_48dp);
1008            this.binding.acceptCall.setVisibility(View.VISIBLE);
1009        } else if (state == RtpEndUserState.INCOMING_CONTENT_ADD) {
1010            this.binding.rejectCall.setContentDescription(
1011                    getString(R.string.reject_switch_to_video));
1012            this.binding.rejectCall.setOnClickListener(this::rejectContentAdd);
1013            this.binding.rejectCall.setImageResource(R.drawable.ic_clear_white_48dp);
1014            this.binding.rejectCall.setVisibility(View.VISIBLE);
1015            this.binding.endCall.setVisibility(View.INVISIBLE);
1016            this.binding.acceptCall.setContentDescription(getString(R.string.accept));
1017            this.binding.acceptCall.setOnClickListener((v -> acceptContentAdd(contentAddition)));
1018            this.binding.acceptCall.setImageResource(R.drawable.ic_baseline_check_24);
1019            this.binding.acceptCall.setVisibility(View.VISIBLE);
1020        } else if (state == RtpEndUserState.DECLINED_OR_BUSY) {
1021            this.binding.rejectCall.setContentDescription(getString(R.string.exit));
1022            this.binding.rejectCall.setOnClickListener(this::exit);
1023            this.binding.rejectCall.setImageResource(R.drawable.ic_clear_white_48dp);
1024            this.binding.rejectCall.setVisibility(View.VISIBLE);
1025            this.binding.endCall.setVisibility(View.INVISIBLE);
1026            this.binding.acceptCall.setContentDescription(getString(R.string.record_voice_mail));
1027            this.binding.acceptCall.setOnClickListener(this::recordVoiceMail);
1028            this.binding.acceptCall.setImageResource(R.drawable.ic_voicemail_white_24dp);
1029            this.binding.acceptCall.setVisibility(View.VISIBLE);
1030        } else if (asList(
1031                        RtpEndUserState.CONNECTIVITY_ERROR,
1032                        RtpEndUserState.CONNECTIVITY_LOST_ERROR,
1033                        RtpEndUserState.APPLICATION_ERROR,
1034                        RtpEndUserState.RETRACTED,
1035                        RtpEndUserState.SECURITY_ERROR)
1036                .contains(state)) {
1037            this.binding.rejectCall.setContentDescription(getString(R.string.exit));
1038            this.binding.rejectCall.setOnClickListener(this::exit);
1039            this.binding.rejectCall.setImageResource(R.drawable.ic_clear_white_48dp);
1040            this.binding.rejectCall.setVisibility(View.VISIBLE);
1041            this.binding.endCall.setVisibility(View.INVISIBLE);
1042            this.binding.acceptCall.setContentDescription(getString(R.string.try_again));
1043            this.binding.acceptCall.setOnClickListener(this::retry);
1044            this.binding.acceptCall.setImageResource(R.drawable.ic_replay_white_48dp);
1045            this.binding.acceptCall.setVisibility(View.VISIBLE);
1046        } else {
1047            this.binding.rejectCall.setVisibility(View.INVISIBLE);
1048            this.binding.endCall.setContentDescription(getString(R.string.hang_up));
1049            this.binding.endCall.setOnClickListener(this::endCall);
1050            this.binding.endCall.setImageResource(R.drawable.ic_call_end_white_48dp);
1051            this.binding.endCall.setVisibility(View.VISIBLE);
1052            this.binding.acceptCall.setVisibility(View.INVISIBLE);
1053        }
1054        updateInCallButtonConfiguration(state, media);
1055    }
1056
1057    private boolean isPictureInPicture() {
1058        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
1059            return isInPictureInPictureMode();
1060        } else {
1061            return false;
1062        }
1063    }
1064
1065    private void updateInCallButtonConfiguration() {
1066        updateInCallButtonConfiguration(
1067                requireRtpConnection().getEndUserState(), requireRtpConnection().getMedia());
1068    }
1069
1070    @SuppressLint("RestrictedApi")
1071    private void updateInCallButtonConfiguration(
1072            final RtpEndUserState state, final Set<Media> media) {
1073        if (STATES_CONSIDERED_CONNECTED.contains(state) && !isPictureInPicture()) {
1074            Preconditions.checkArgument(media.size() > 0, "Media must not be empty");
1075            if (media.contains(Media.VIDEO)) {
1076                final JingleRtpConnection rtpConnection = requireRtpConnection();
1077                updateInCallButtonConfigurationVideo(
1078                        rtpConnection.isVideoEnabled(), rtpConnection.isCameraSwitchable());
1079            } else {
1080                final AppRTCAudioManager audioManager = requireRtpConnection().getAudioManager();
1081                updateInCallButtonConfigurationSpeaker(
1082                        audioManager.getSelectedAudioDevice(),
1083                        audioManager.getAudioDevices().size());
1084                this.binding.inCallActionFarRight.setVisibility(View.GONE);
1085            }
1086            if (media.contains(Media.AUDIO)) {
1087                updateInCallButtonConfigurationMicrophone(
1088                        requireRtpConnection().isMicrophoneEnabled());
1089            } else {
1090                this.binding.inCallActionLeft.setVisibility(View.GONE);
1091            }
1092        } else {
1093            this.binding.inCallActionLeft.setVisibility(View.GONE);
1094            this.binding.inCallActionRight.setVisibility(View.GONE);
1095            this.binding.inCallActionFarRight.setVisibility(View.GONE);
1096        }
1097    }
1098
1099    @SuppressLint("RestrictedApi")
1100    private void updateInCallButtonConfigurationSpeaker(
1101            final AppRTCAudioManager.AudioDevice selectedAudioDevice, final int numberOfChoices) {
1102        switch (selectedAudioDevice) {
1103            case EARPIECE -> {
1104                this.binding.inCallActionRight.setImageResource(
1105                        R.drawable.ic_volume_off_black_24dp);
1106                if (numberOfChoices >= 2) {
1107                    this.binding.inCallActionRight.setOnClickListener(this::switchToSpeaker);
1108                } else {
1109                    this.binding.inCallActionRight.setOnClickListener(null);
1110                    this.binding.inCallActionRight.setClickable(false);
1111                }
1112            }
1113            case WIRED_HEADSET -> {
1114                this.binding.inCallActionRight.setImageResource(R.drawable.ic_headset_black_24dp);
1115                this.binding.inCallActionRight.setOnClickListener(null);
1116                this.binding.inCallActionRight.setClickable(false);
1117            }
1118            case SPEAKER_PHONE -> {
1119                this.binding.inCallActionRight.setImageResource(R.drawable.ic_volume_up_black_24dp);
1120                if (numberOfChoices >= 2) {
1121                    this.binding.inCallActionRight.setOnClickListener(this::switchToEarpiece);
1122                } else {
1123                    this.binding.inCallActionRight.setOnClickListener(null);
1124                    this.binding.inCallActionRight.setClickable(false);
1125                }
1126            }
1127            case BLUETOOTH -> {
1128                this.binding.inCallActionRight.setImageResource(
1129                        R.drawable.ic_bluetooth_audio_black_24dp);
1130                this.binding.inCallActionRight.setOnClickListener(null);
1131                this.binding.inCallActionRight.setClickable(false);
1132            }
1133        }
1134        this.binding.inCallActionRight.setVisibility(View.VISIBLE);
1135    }
1136
1137    @SuppressLint("RestrictedApi")
1138    private void updateInCallButtonConfigurationVideo(
1139            final boolean videoEnabled, final boolean isCameraSwitchable) {
1140        this.binding.inCallActionRight.setVisibility(View.VISIBLE);
1141        if (isCameraSwitchable) {
1142            this.binding.inCallActionFarRight.setImageResource(
1143                    R.drawable.ic_flip_camera_android_black_24dp);
1144            this.binding.inCallActionFarRight.setVisibility(View.VISIBLE);
1145            this.binding.inCallActionFarRight.setOnClickListener(this::switchCamera);
1146        } else {
1147            this.binding.inCallActionFarRight.setVisibility(View.GONE);
1148        }
1149        if (videoEnabled) {
1150            this.binding.inCallActionRight.setImageResource(R.drawable.ic_videocam_black_24dp);
1151            this.binding.inCallActionRight.setOnClickListener(this::disableVideo);
1152        } else {
1153            this.binding.inCallActionRight.setImageResource(R.drawable.ic_videocam_off_black_24dp);
1154            this.binding.inCallActionRight.setOnClickListener(this::enableVideo);
1155        }
1156    }
1157
1158    private void switchCamera(final View view) {
1159        Futures.addCallback(
1160                requireRtpConnection().switchCamera(),
1161                new FutureCallback<>() {
1162                    @Override
1163                    public void onSuccess(@Nullable Boolean isFrontCamera) {
1164                        binding.localVideo.setMirror(Boolean.TRUE.equals(isFrontCamera));
1165                    }
1166
1167                    @Override
1168                    public void onFailure(@NonNull final Throwable throwable) {
1169                        Log.d(
1170                                Config.LOGTAG,
1171                                "could not switch camera",
1172                                Throwables.getRootCause(throwable));
1173                        Toast.makeText(
1174                                        RtpSessionActivity.this,
1175                                        R.string.could_not_switch_camera,
1176                                        Toast.LENGTH_LONG)
1177                                .show();
1178                    }
1179                },
1180                MainThreadExecutor.getInstance());
1181    }
1182
1183    private void enableVideo(View view) {
1184        try {
1185            requireRtpConnection().setVideoEnabled(true);
1186        } catch (final IllegalStateException e) {
1187            Toast.makeText(this, R.string.unable_to_enable_video, Toast.LENGTH_SHORT).show();
1188            return;
1189        }
1190        updateInCallButtonConfigurationVideo(true, requireRtpConnection().isCameraSwitchable());
1191    }
1192
1193    private void disableVideo(View view) {
1194        final JingleRtpConnection rtpConnection = requireRtpConnection();
1195        final ContentAddition pending = rtpConnection.getPendingContentAddition();
1196        if (pending != null && pending.direction == ContentAddition.Direction.OUTGOING) {
1197            rtpConnection.retractContentAdd();
1198            return;
1199        }
1200        requireRtpConnection().setVideoEnabled(false);
1201        updateInCallButtonConfigurationVideo(false, requireRtpConnection().isCameraSwitchable());
1202    }
1203
1204    @SuppressLint("RestrictedApi")
1205    private void updateInCallButtonConfigurationMicrophone(final boolean microphoneEnabled) {
1206        if (microphoneEnabled) {
1207            this.binding.inCallActionLeft.setImageResource(R.drawable.ic_mic_black_24dp);
1208            this.binding.inCallActionLeft.setOnClickListener(this::disableMicrophone);
1209        } else {
1210            this.binding.inCallActionLeft.setImageResource(R.drawable.ic_mic_off_black_24dp);
1211            this.binding.inCallActionLeft.setOnClickListener(this::enableMicrophone);
1212        }
1213        this.binding.inCallActionLeft.setVisibility(View.VISIBLE);
1214    }
1215
1216    private void updateCallDuration() {
1217        final JingleRtpConnection connection =
1218                this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
1219        if (connection == null || connection.getMedia().contains(Media.VIDEO)) {
1220            this.binding.duration.setVisibility(View.GONE);
1221            return;
1222        }
1223        if (connection.zeroDuration()) {
1224            this.binding.duration.setVisibility(View.GONE);
1225        } else {
1226            this.binding.duration.setText(
1227                    TimeFrameUtils.formatElapsedTime(connection.getCallDuration(), false));
1228            this.binding.duration.setVisibility(View.VISIBLE);
1229        }
1230    }
1231
1232    private void updateVideoViews(final RtpEndUserState state) {
1233        if (END_CARD.contains(state) || state == RtpEndUserState.ENDING_CALL) {
1234            binding.localVideo.setVisibility(View.GONE);
1235            binding.localVideo.release();
1236            binding.remoteVideoWrapper.setVisibility(View.GONE);
1237            binding.remoteVideo.release();
1238            binding.pipLocalMicOffIndicator.setVisibility(View.GONE);
1239            if (isPictureInPicture()) {
1240                binding.appBarLayout.setVisibility(View.GONE);
1241                binding.pipPlaceholder.setVisibility(View.VISIBLE);
1242                if (Arrays.asList(
1243                                RtpEndUserState.APPLICATION_ERROR,
1244                                RtpEndUserState.CONNECTIVITY_ERROR,
1245                                RtpEndUserState.SECURITY_ERROR)
1246                        .contains(state)) {
1247                    binding.pipWarning.setVisibility(View.VISIBLE);
1248                    binding.pipWaiting.setVisibility(View.GONE);
1249                } else {
1250                    binding.pipWarning.setVisibility(View.GONE);
1251                    binding.pipWaiting.setVisibility(View.GONE);
1252                }
1253            } else {
1254                binding.appBarLayout.setVisibility(View.VISIBLE);
1255                binding.pipPlaceholder.setVisibility(View.GONE);
1256            }
1257            getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
1258            return;
1259        }
1260        if (isPictureInPicture() && STATES_SHOWING_PIP_PLACEHOLDER.contains(state)) {
1261            binding.localVideo.setVisibility(View.GONE);
1262            binding.remoteVideoWrapper.setVisibility(View.GONE);
1263            binding.appBarLayout.setVisibility(View.GONE);
1264            binding.pipPlaceholder.setVisibility(View.VISIBLE);
1265            binding.pipWarning.setVisibility(View.GONE);
1266            binding.pipWaiting.setVisibility(View.VISIBLE);
1267            binding.pipLocalMicOffIndicator.setVisibility(View.GONE);
1268            return;
1269        }
1270        final Optional<VideoTrack> localVideoTrack = getLocalVideoTrack();
1271        if (localVideoTrack.isPresent() && !isPictureInPicture()) {
1272            ensureSurfaceViewRendererIsSetup(binding.localVideo);
1273            // paint local view over remote view
1274            binding.localVideo.setZOrderMediaOverlay(true);
1275            binding.localVideo.setMirror(requireRtpConnection().isFrontCamera());
1276            addSink(localVideoTrack.get(), binding.localVideo);
1277        } else {
1278            binding.localVideo.setVisibility(View.GONE);
1279        }
1280        final Optional<VideoTrack> remoteVideoTrack = getRemoteVideoTrack();
1281        if (remoteVideoTrack.isPresent()) {
1282            ensureSurfaceViewRendererIsSetup(binding.remoteVideo);
1283            addSink(remoteVideoTrack.get(), binding.remoteVideo);
1284            binding.remoteVideo.setScalingType(
1285                    RendererCommon.ScalingType.SCALE_ASPECT_FILL,
1286                    RendererCommon.ScalingType.SCALE_ASPECT_FIT);
1287            if (state == RtpEndUserState.CONNECTED) {
1288                binding.appBarLayout.setVisibility(View.GONE);
1289                getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
1290                binding.remoteVideoWrapper.setVisibility(View.VISIBLE);
1291            } else {
1292                binding.appBarLayout.setVisibility(View.VISIBLE);
1293                getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
1294                binding.remoteVideoWrapper.setVisibility(View.GONE);
1295            }
1296            if (isPictureInPicture() && !requireRtpConnection().isMicrophoneEnabled()) {
1297                binding.pipLocalMicOffIndicator.setVisibility(View.VISIBLE);
1298            } else {
1299                binding.pipLocalMicOffIndicator.setVisibility(View.GONE);
1300            }
1301        } else {
1302            getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
1303            binding.remoteVideoWrapper.setVisibility(View.GONE);
1304            binding.pipLocalMicOffIndicator.setVisibility(View.GONE);
1305        }
1306    }
1307
1308    private Optional<VideoTrack> getLocalVideoTrack() {
1309        final JingleRtpConnection connection =
1310                this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
1311        if (connection == null) {
1312            return Optional.absent();
1313        }
1314        return connection.getLocalVideoTrack();
1315    }
1316
1317    private Optional<VideoTrack> getRemoteVideoTrack() {
1318        final JingleRtpConnection connection =
1319                this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
1320        if (connection == null) {
1321            return Optional.absent();
1322        }
1323        return connection.getRemoteVideoTrack();
1324    }
1325
1326    private void disableMicrophone(View view) {
1327        final JingleRtpConnection rtpConnection = requireRtpConnection();
1328        if (rtpConnection.setMicrophoneEnabled(false)) {
1329            updateInCallButtonConfiguration();
1330        }
1331    }
1332
1333    private void enableMicrophone(View view) {
1334        final JingleRtpConnection rtpConnection = requireRtpConnection();
1335        if (rtpConnection.setMicrophoneEnabled(true)) {
1336            updateInCallButtonConfiguration();
1337        }
1338    }
1339
1340    private void switchToEarpiece(View view) {
1341        requireRtpConnection()
1342                .getAudioManager()
1343                .setDefaultAudioDevice(AppRTCAudioManager.AudioDevice.EARPIECE);
1344        acquireProximityWakeLock();
1345    }
1346
1347    private void switchToSpeaker(View view) {
1348        requireRtpConnection()
1349                .getAudioManager()
1350                .setDefaultAudioDevice(AppRTCAudioManager.AudioDevice.SPEAKER_PHONE);
1351        releaseProximityWakeLock();
1352    }
1353
1354    private void retry(View view) {
1355        final Intent intent = getIntent();
1356        final Account account = extractAccount(intent);
1357        final Jid with = Jid.ofEscaped(intent.getStringExtra(EXTRA_WITH));
1358        final String lastAction = intent.getStringExtra(EXTRA_LAST_ACTION);
1359        final String action = intent.getAction();
1360        final Set<Media> media = actionToMedia(lastAction == null ? action : lastAction);
1361        this.rtpConnectionReference = null;
1362        Log.d(Config.LOGTAG, "attempting retry with " + with.toEscapedString());
1363        proposeJingleRtpSession(account, with, media);
1364    }
1365
1366    private void exit(final View view) {
1367        finish();
1368    }
1369
1370    private void recordVoiceMail(final View view) {
1371        final Intent intent = getIntent();
1372        final Account account = extractAccount(intent);
1373        final Jid with = Jid.ofEscaped(intent.getStringExtra(EXTRA_WITH));
1374        final Conversation conversation =
1375                xmppConnectionService.findOrCreateConversation(account, with, false, true);
1376        final Intent launchIntent = new Intent(this, ConversationsActivity.class);
1377        launchIntent.setAction(ConversationsActivity.ACTION_VIEW_CONVERSATION);
1378        launchIntent.putExtra(ConversationsActivity.EXTRA_CONVERSATION, conversation.getUuid());
1379        launchIntent.setFlags(intent.getFlags() | Intent.FLAG_ACTIVITY_CLEAR_TOP);
1380        launchIntent.putExtra(
1381                ConversationsActivity.EXTRA_POST_INIT_ACTION,
1382                ConversationsActivity.POST_ACTION_RECORD_VOICE);
1383        startActivity(launchIntent);
1384        finish();
1385    }
1386
1387    private Contact getWith() {
1388        final AbstractJingleConnection.Id id = requireRtpConnection().getId();
1389        final Account account = id.account;
1390        return account.getRoster().getContact(id.with);
1391    }
1392
1393    private JingleRtpConnection requireRtpConnection() {
1394        final JingleRtpConnection connection =
1395                this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
1396        if (connection == null) {
1397            throw new IllegalStateException("No RTP connection found");
1398        }
1399        return connection;
1400    }
1401
1402    @Override
1403    public void onJingleRtpConnectionUpdate(
1404            Account account, Jid with, final String sessionId, RtpEndUserState state) {
1405        Log.d(Config.LOGTAG, "onJingleRtpConnectionUpdate(" + state + ")");
1406        if (END_CARD.contains(state)) {
1407            Log.d(Config.LOGTAG, "end card reached");
1408            releaseProximityWakeLock();
1409            runOnUiThread(
1410                    () -> getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON));
1411        }
1412        if (with.isBareJid()) {
1413            updateRtpSessionProposalState(account, with, state);
1414            return;
1415        }
1416        if (emptyReference(this.rtpConnectionReference)) {
1417            if (END_CARD.contains(state)) {
1418                Log.d(Config.LOGTAG, "not reinitializing session");
1419                return;
1420            }
1421            // this happens when going from proposed session to actual session
1422            reInitializeActivityWithRunningRtpSession(account, with, sessionId);
1423            return;
1424        }
1425        final AbstractJingleConnection.Id id = requireRtpConnection().getId();
1426        final boolean verified = requireRtpConnection().isVerified();
1427        final Set<Media> media = getMedia();
1428        lockOrientation(media);
1429        final ContentAddition contentAddition = getPendingContentAddition();
1430        final Contact contact = getWith();
1431        if (account == id.account && id.with.equals(with) && id.sessionId.equals(sessionId)) {
1432            if (state == RtpEndUserState.ENDED) {
1433                finish();
1434                return;
1435            }
1436            runOnUiThread(
1437                    () -> {
1438                        updateStateDisplay(state, media, contentAddition);
1439                        updateVerifiedShield(
1440                                verified && STATES_SHOWING_SWITCH_TO_CHAT.contains(state));
1441                        updateButtonConfiguration(state, media, contentAddition);
1442                        updateVideoViews(state);
1443                        updateIncomingCallScreen(state, contact);
1444                        invalidateOptionsMenu();
1445                    });
1446            if (END_CARD.contains(state)) {
1447                final JingleRtpConnection rtpConnection = requireRtpConnection();
1448                resetIntent(account, with, state, rtpConnection.getMedia());
1449                releaseVideoTracks(rtpConnection);
1450                this.rtpConnectionReference = null;
1451            }
1452        } else {
1453            Log.d(Config.LOGTAG, "received update for other rtp session");
1454        }
1455    }
1456
1457    @Override
1458    public void onAudioDeviceChanged(
1459            final AppRTCAudioManager.AudioDevice selectedAudioDevice,
1460            final Set<AppRTCAudioManager.AudioDevice> availableAudioDevices) {
1461        Log.d(
1462                Config.LOGTAG,
1463                "onAudioDeviceChanged in activity: selected:"
1464                        + selectedAudioDevice
1465                        + ", available:"
1466                        + availableAudioDevices);
1467        try {
1468            final RtpEndUserState endUserState = requireRtpConnection().getEndUserState();
1469            final Set<Media> media = getMedia();
1470            if (END_CARD.contains(endUserState)) {
1471                Log.d(
1472                        Config.LOGTAG,
1473                        "onAudioDeviceChanged() nothing to do because end card has been reached");
1474            } else {
1475                if (Media.audioOnly(media) && endUserState == RtpEndUserState.CONNECTED) {
1476                    final AppRTCAudioManager audioManager =
1477                            requireRtpConnection().getAudioManager();
1478                    updateInCallButtonConfigurationSpeaker(
1479                            audioManager.getSelectedAudioDevice(),
1480                            audioManager.getAudioDevices().size());
1481                }
1482                Log.d(
1483                        Config.LOGTAG,
1484                        "put proximity wake lock into proper state after device update");
1485                putProximityWakeLockInProperState(selectedAudioDevice);
1486            }
1487        } catch (final IllegalStateException e) {
1488            Log.d(Config.LOGTAG, "RTP connection was not available when audio device changed");
1489        }
1490    }
1491
1492    @Override
1493    protected void onSaveInstanceState(@NonNull @NotNull Bundle outState) {
1494        super.onSaveInstanceState(outState);
1495        outState.putBoolean("dialpad_visible", binding.dialpad.getVisibility() == View.VISIBLE);
1496    }
1497
1498    private void updateRtpSessionProposalState(
1499            final Account account, final Jid with, final RtpEndUserState state) {
1500        final Intent currentIntent = getIntent();
1501        final String withExtra =
1502                currentIntent == null ? null : currentIntent.getStringExtra(EXTRA_WITH);
1503        if (withExtra == null) {
1504            return;
1505        }
1506        if (Jid.ofEscaped(withExtra).asBareJid().equals(with)) {
1507            runOnUiThread(
1508                    () -> {
1509                        updateVerifiedShield(false);
1510                        updateStateDisplay(state);
1511                        updateButtonConfiguration(state);
1512                        updateIncomingCallScreen(state);
1513                        invalidateOptionsMenu();
1514                    });
1515            resetIntent(account, with, state, actionToMedia(currentIntent.getAction()));
1516        }
1517    }
1518
1519    private void resetIntent(final Bundle extras) {
1520        final Intent intent = new Intent(Intent.ACTION_VIEW);
1521        intent.putExtras(extras);
1522        setIntent(intent);
1523    }
1524
1525    private void resetIntent(
1526            final Account account, Jid with, final RtpEndUserState state, final Set<Media> media) {
1527        final Intent intent = new Intent(Intent.ACTION_VIEW);
1528        intent.putExtra(EXTRA_ACCOUNT, account.getJid().toEscapedString());
1529        if (RtpCapability.jmiSupport(account.getRoster().getContact(with))) {
1530            intent.putExtra(EXTRA_WITH, with.asBareJid().toEscapedString());
1531        } else {
1532            intent.putExtra(EXTRA_WITH, with.toEscapedString());
1533        }
1534        intent.putExtra(EXTRA_LAST_REPORTED_STATE, state.toString());
1535        intent.putExtra(
1536                EXTRA_LAST_ACTION,
1537                media.contains(Media.VIDEO) ? ACTION_MAKE_VIDEO_CALL : ACTION_MAKE_VOICE_CALL);
1538        setIntent(intent);
1539    }
1540
1541    private static boolean emptyReference(final WeakReference<?> weakReference) {
1542        return weakReference == null || weakReference.get() == null;
1543    }
1544}