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.PictureInPictureParams;
  10import android.content.ActivityNotFoundException;
  11import android.content.Context;
  12import android.content.Intent;
  13import android.content.pm.ActivityInfo;
  14import android.content.pm.PackageManager;
  15import android.opengl.GLException;
  16import android.os.Build;
  17import android.os.Bundle;
  18import android.os.Handler;
  19import android.os.PowerManager;
  20import android.util.Log;
  21import android.util.Rational;
  22import android.view.KeyEvent;
  23import android.view.Menu;
  24import android.view.MenuItem;
  25import android.view.View;
  26import android.view.WindowManager;
  27import android.widget.Toast;
  28
  29import androidx.annotation.NonNull;
  30import androidx.annotation.Nullable;
  31import androidx.annotation.RequiresApi;
  32import androidx.annotation.StringRes;
  33import androidx.databinding.DataBindingUtil;
  34
  35import com.google.common.base.Optional;
  36import com.google.common.base.Preconditions;
  37import com.google.common.base.Throwables;
  38import com.google.common.collect.ImmutableList;
  39import com.google.common.collect.ImmutableSet;
  40import com.google.common.util.concurrent.FutureCallback;
  41import com.google.common.util.concurrent.Futures;
  42
  43import org.jetbrains.annotations.NotNull;
  44import org.webrtc.RendererCommon;
  45import org.webrtc.SurfaceViewRenderer;
  46import org.webrtc.VideoTrack;
  47
  48import java.lang.ref.WeakReference;
  49import java.util.Arrays;
  50import java.util.Collections;
  51import java.util.List;
  52import java.util.Set;
  53
  54import eu.siacs.conversations.Config;
  55import eu.siacs.conversations.R;
  56import eu.siacs.conversations.databinding.ActivityRtpSessionBinding;
  57import eu.siacs.conversations.entities.Account;
  58import eu.siacs.conversations.entities.Contact;
  59import eu.siacs.conversations.entities.Conversation;
  60import eu.siacs.conversations.services.CallIntegration;
  61import eu.siacs.conversations.services.CallIntegrationConnectionService;
  62import eu.siacs.conversations.services.XmppConnectionService;
  63import eu.siacs.conversations.ui.widget.DialpadView;
  64import eu.siacs.conversations.ui.util.AvatarWorkerTask;
  65import eu.siacs.conversations.ui.util.MainThreadExecutor;
  66import eu.siacs.conversations.ui.util.Rationals;
  67import eu.siacs.conversations.utils.PermissionUtils;
  68import eu.siacs.conversations.utils.TimeFrameUtils;
  69import eu.siacs.conversations.xmpp.Jid;
  70import eu.siacs.conversations.xmpp.jingle.AbstractJingleConnection;
  71import eu.siacs.conversations.xmpp.jingle.ContentAddition;
  72import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
  73import eu.siacs.conversations.xmpp.jingle.JingleRtpConnection;
  74import eu.siacs.conversations.xmpp.jingle.Media;
  75import eu.siacs.conversations.xmpp.jingle.OngoingRtpSession;
  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_PROPOSED_SESSION_ID = "proposed_session_id";
  96    public static final String EXTRA_LAST_REPORTED_STATE = "last_reported_state";
  97    public static final String EXTRA_LAST_ACTION = "last_action";
  98    public static final String ACTION_ACCEPT_CALL = "action_accept_call";
  99    public static final String ACTION_MAKE_VOICE_CALL = "action_make_voice_call";
 100    public static final String ACTION_MAKE_VIDEO_CALL = "action_make_video_call";
 101
 102    private static final int CALL_DURATION_UPDATE_INTERVAL = 333;
 103
 104    public static final List<RtpEndUserState> END_CARD =
 105            Arrays.asList(
 106                    RtpEndUserState.APPLICATION_ERROR,
 107                    RtpEndUserState.SECURITY_ERROR,
 108                    RtpEndUserState.DECLINED_OR_BUSY,
 109                    RtpEndUserState.CONTACT_OFFLINE,
 110                    RtpEndUserState.CONNECTIVITY_ERROR,
 111                    RtpEndUserState.CONNECTIVITY_LOST_ERROR,
 112                    RtpEndUserState.RETRACTED);
 113    private static final List<RtpEndUserState> STATES_SHOWING_HELP_BUTTON =
 114            Arrays.asList(
 115                    RtpEndUserState.APPLICATION_ERROR,
 116                    RtpEndUserState.CONNECTIVITY_ERROR,
 117                    RtpEndUserState.SECURITY_ERROR);
 118    private static final List<RtpEndUserState> STATES_SHOWING_SWITCH_TO_CHAT =
 119            Arrays.asList(
 120                    RtpEndUserState.CONNECTING,
 121                    RtpEndUserState.CONNECTED,
 122                    RtpEndUserState.RECONNECTING,
 123                    RtpEndUserState.INCOMING_CONTENT_ADD);
 124    private static final List<RtpEndUserState> STATES_CONSIDERED_CONNECTED =
 125            Arrays.asList(RtpEndUserState.CONNECTED, RtpEndUserState.RECONNECTING);
 126    private static final List<RtpEndUserState> STATES_SHOWING_PIP_PLACEHOLDER =
 127            Arrays.asList(
 128                    RtpEndUserState.ACCEPTING_CALL,
 129                    RtpEndUserState.CONNECTING,
 130                    RtpEndUserState.RECONNECTING);
 131    private static final List<RtpEndUserState> STATES_SHOWING_SPEAKER_CONFIGURATION =
 132            new ImmutableList.Builder<RtpEndUserState>()
 133                    .add(RtpEndUserState.FINDING_DEVICE)
 134                    .add(RtpEndUserState.RINGING)
 135                    .add(RtpEndUserState.ACCEPTING_CALL)
 136                    .add(RtpEndUserState.CONNECTING)
 137                    .addAll(STATES_CONSIDERED_CONNECTED)
 138                    .build();
 139    private static final String PROXIMITY_WAKE_LOCK_TAG = "conversations:in-rtp-session";
 140    private static final int REQUEST_ACCEPT_CALL = 0x1111;
 141    private static final int REQUEST_ACCEPT_CONTENT = 0x1112;
 142    private static final int REQUEST_ADD_CONTENT = 0x1113;
 143    private WeakReference<JingleRtpConnection> rtpConnectionReference;
 144
 145    private ActivityRtpSessionBinding binding;
 146    private PowerManager.WakeLock mProximityWakeLock;
 147
 148    private final Handler mHandler = new Handler();
 149    private final Runnable mTickExecutor =
 150            new Runnable() {
 151                @Override
 152                public void run() {
 153                    updateCallDuration();
 154                    mHandler.postDelayed(mTickExecutor, CALL_DURATION_UPDATE_INTERVAL);
 155                }
 156            };
 157
 158    public static Set<Media> actionToMedia(final String action) {
 159        if (ACTION_MAKE_VIDEO_CALL.equals(action)) {
 160            return ImmutableSet.of(Media.AUDIO, Media.VIDEO);
 161        } else if (ACTION_MAKE_VOICE_CALL.equals(action)) {
 162            return ImmutableSet.of(Media.AUDIO);
 163        } else {
 164            Log.w(
 165                    Config.LOGTAG,
 166                    "actionToMedia can not get media set from unknown action " + action);
 167            return Collections.emptySet();
 168        }
 169    }
 170
 171    private static void addSink(
 172            final VideoTrack videoTrack, final SurfaceViewRenderer surfaceViewRenderer) {
 173        try {
 174            videoTrack.addSink(surfaceViewRenderer);
 175        } catch (final IllegalStateException e) {
 176            Log.e(
 177                    Config.LOGTAG,
 178                    "possible race condition on trying to display video track. ignoring",
 179                    e);
 180        }
 181    }
 182
 183    @Override
 184    public void onCreate(Bundle savedInstanceState) {
 185        super.onCreate(savedInstanceState);
 186        getWindow()
 187                .addFlags(
 188                        WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
 189                                | WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD
 190                                | WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED
 191                                | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);
 192        this.binding = DataBindingUtil.setContentView(this, R.layout.activity_rtp_session);
 193        setSupportActionBar(binding.toolbar);
 194
 195        binding.dialpad.setClickConsumer(tag -> {
 196            final JingleRtpConnection connection =
 197                this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
 198            if (connection != null) connection.applyDtmfTone(tag);
 199        });
 200
 201        if (savedInstanceState != null) {
 202            boolean dialpadVisible = savedInstanceState.getBoolean("dialpad_visible");
 203            binding.dialpad.setVisibility(dialpadVisible ? View.VISIBLE : View.GONE);
 204        }
 205
 206        Activities.setStatusAndNavigationBarColors(this, binding.getRoot());
 207    }
 208
 209    @Override
 210    public boolean onCreateOptionsMenu(final Menu menu) {
 211        getMenuInflater().inflate(R.menu.activity_rtp_session, menu);
 212        final MenuItem help = menu.findItem(R.id.action_help);
 213        final MenuItem gotoChat = menu.findItem(R.id.action_goto_chat);
 214        final MenuItem dialpad = menu.findItem(R.id.action_dialpad);
 215        final MenuItem switchToVideo = menu.findItem(R.id.action_switch_to_video);
 216        help.setVisible(Config.HELP != null && isHelpButtonVisible());
 217        gotoChat.setVisible(isSwitchToConversationVisible());
 218        switchToVideo.setVisible(isSwitchToVideoVisible());
 219        dialpad.setVisible(isAudioOnlyConversation());
 220        return super.onCreateOptionsMenu(menu);
 221    }
 222
 223    @Override
 224    public boolean onKeyDown(final int keyCode, final KeyEvent event) {
 225        if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN) {
 226            if (xmppConnectionService != null) {
 227                if (xmppConnectionService.getNotificationService().stopSoundAndVibration()) {
 228                    return true;
 229                }
 230            }
 231        }
 232        return super.onKeyDown(keyCode, event);
 233    }
 234
 235    private boolean isHelpButtonVisible() {
 236        try {
 237            return STATES_SHOWING_HELP_BUTTON.contains(requireRtpConnection().getEndUserState());
 238        } catch (IllegalStateException e) {
 239            final Intent intent = getIntent();
 240            final String state =
 241                    intent != null ? intent.getStringExtra(EXTRA_LAST_REPORTED_STATE) : null;
 242            if (state != null) {
 243                return STATES_SHOWING_HELP_BUTTON.contains(RtpEndUserState.valueOf(state));
 244            } else {
 245                return false;
 246            }
 247        }
 248    }
 249
 250    private boolean isSwitchToConversationVisible() {
 251        final JingleRtpConnection connection =
 252                this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
 253        return connection != null
 254                && STATES_SHOWING_SWITCH_TO_CHAT.contains(connection.getEndUserState());
 255    }
 256
 257    private boolean isAudioOnlyConversation() {
 258        final JingleRtpConnection connection =
 259                this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
 260
 261        return connection != null && !connection.getMedia().contains(Media.VIDEO);
 262    }
 263
 264    private boolean isSwitchToVideoVisible() {
 265        final JingleRtpConnection connection =
 266                this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
 267        if (connection == null) {
 268            return false;
 269        }
 270        return connection.isSwitchToVideoAvailable();
 271    }
 272
 273    private void switchToConversation() {
 274        final Contact contact = getWith();
 275        final Conversation conversation =
 276                xmppConnectionService.findOrCreateConversation(
 277                        contact.getAccount(), contact.getJid(), false, true);
 278        switchToConversation(conversation);
 279    }
 280
 281    private void toggleDialpadVisibility() {
 282        if (binding.dialpad.getVisibility() == View.VISIBLE) {
 283            binding.dialpad.setVisibility(View.GONE);
 284        }
 285        else {
 286            binding.dialpad.setVisibility(View.VISIBLE);
 287        }
 288    }
 289
 290    public boolean onOptionsItemSelected(final MenuItem item) {
 291        final var itemItem = item.getItemId();
 292        if (itemItem == R.id.action_help) {
 293            launchHelpInBrowser();
 294            return true;
 295        } else if (itemItem == R.id.action_goto_chat) {
 296            switchToConversation();
 297            return true;
 298        } else if (itemItem == R.id.action_dialpad) {
 299            toggleDialpadVisibility();
 300            return true;
 301        } else if (itemItem == R.id.action_switch_to_video) {
 302            requestPermissionAndSwitchToVideo();
 303            return true;
 304        } else {
 305            return super.onOptionsItemSelected(item);
 306        }
 307    }
 308
 309    private void launchHelpInBrowser() {
 310        final Intent intent = new Intent(Intent.ACTION_VIEW, Config.HELP);
 311        try {
 312            startActivity(intent);
 313        } catch (final ActivityNotFoundException e) {
 314            Toast.makeText(this, R.string.no_application_found_to_open_link, Toast.LENGTH_LONG)
 315                    .show();
 316        }
 317    }
 318
 319    private void endCall(View view) {
 320        endCall();
 321    }
 322
 323    private void endCall() {
 324        if (this.rtpConnectionReference == null) {
 325            retractSessionProposal();
 326            finish();
 327        } else {
 328            try {
 329                requireRtpConnection().endCall();
 330            } catch (final IllegalStateException e) {
 331                // No call, already done
 332                finish();
 333            }
 334        }
 335    }
 336
 337    private void retractSessionProposal() {
 338        final Intent intent = getIntent();
 339        final String action = intent.getAction();
 340        final String lastAction = intent.getStringExtra(EXTRA_LAST_ACTION);
 341        final Account account = extractAccount(intent);
 342        final Jid with = Jid.ofEscaped(intent.getStringExtra(EXTRA_WITH));
 343        final String state = intent.getStringExtra(EXTRA_LAST_REPORTED_STATE);
 344        if (!Intent.ACTION_VIEW.equals(action)
 345                || state == null
 346                || !END_CARD.contains(RtpEndUserState.valueOf(state))) {
 347            final Set<Media> media = actionToMedia(lastAction == null ? action : lastAction);
 348            resetIntent(account, with, RtpEndUserState.RETRACTED, media);
 349        }
 350        xmppConnectionService
 351                .getJingleConnectionManager()
 352                .retractSessionProposal(account, with.asBareJid());
 353    }
 354
 355    private void rejectCall(View view) {
 356        requireRtpConnection().rejectCall();
 357        finish();
 358    }
 359
 360    private void acceptCall(View view) {
 361        requestPermissionsAndAcceptCall();
 362    }
 363
 364    private void acceptContentAdd() {
 365        try {
 366            requireRtpConnection()
 367                    .acceptContentAdd(requireRtpConnection().getPendingContentAddition().summary);
 368        } catch (final IllegalStateException e) {
 369            Toast.makeText(this, e.getMessage(), Toast.LENGTH_SHORT).show();
 370        }
 371    }
 372
 373    private void requestPermissionAndSwitchToVideo() {
 374        final List<String> permissions = permissions(ImmutableSet.of(Media.VIDEO, Media.AUDIO));
 375        if (PermissionUtils.hasPermission(this, permissions, REQUEST_ADD_CONTENT)) {
 376            switchToVideo();
 377        }
 378    }
 379
 380    private void switchToVideo() {
 381        try {
 382            requireRtpConnection().addMedia(Media.VIDEO);
 383        } catch (final IllegalStateException e) {
 384            Toast.makeText(this, e.getMessage(), Toast.LENGTH_SHORT).show();
 385        }
 386    }
 387
 388    private void acceptContentAdd(final ContentAddition contentAddition) {
 389        if (contentAddition == null
 390                || contentAddition.direction != ContentAddition.Direction.INCOMING) {
 391            Log.d(Config.LOGTAG, "ignore press on content-accept button");
 392            return;
 393        }
 394        requestPermissionAndAcceptContentAdd(contentAddition);
 395    }
 396
 397    private void requestPermissionAndAcceptContentAdd(final ContentAddition contentAddition) {
 398        final List<String> permissions = permissions(contentAddition.media());
 399        if (PermissionUtils.hasPermission(this, permissions, REQUEST_ACCEPT_CONTENT)) {
 400            try {
 401                requireRtpConnection().acceptContentAdd(contentAddition.summary);
 402            } catch (final IllegalStateException e) {
 403                Toast.makeText(this, e.getMessage(), Toast.LENGTH_SHORT).show();
 404            }
 405        }
 406    }
 407
 408    private void rejectContentAdd(final View view) {
 409        requireRtpConnection().rejectContentAdd();
 410    }
 411
 412    private void requestPermissionsAndAcceptCall() {
 413        final List<String> permissions = permissions(getMedia());
 414        if (PermissionUtils.hasPermission(this, permissions, REQUEST_ACCEPT_CALL)) {
 415            putScreenInCallMode();
 416            acceptCall();
 417        }
 418    }
 419
 420    private List<String> permissions(final Set<Media> media) {
 421        final ImmutableList.Builder<String> permissions = ImmutableList.builder();
 422        if (media.contains(Media.VIDEO)) {
 423            permissions.add(Manifest.permission.CAMERA).add(Manifest.permission.RECORD_AUDIO);
 424        } else {
 425            permissions.add(Manifest.permission.RECORD_AUDIO);
 426        }
 427        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
 428            permissions.add(Manifest.permission.BLUETOOTH_CONNECT);
 429        }
 430        return permissions.build();
 431    }
 432
 433    private void acceptCall() {
 434        try {
 435            requireRtpConnection().acceptCall();
 436        } catch (final IllegalStateException e) {
 437            Toast.makeText(this, e.getMessage(), Toast.LENGTH_SHORT).show();
 438        }
 439    }
 440
 441    private void putScreenInCallMode() {
 442        putScreenInCallMode(requireRtpConnection().getMedia());
 443    }
 444
 445    private void putScreenInCallMode(final Set<Media> media) {
 446        getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
 447        if (Media.audioOnly(media)) {
 448            final JingleRtpConnection rtpConnection =
 449                    rtpConnectionReference != null ? rtpConnectionReference.get() : null;
 450            final CallIntegration callIntegration =
 451                    rtpConnection == null ? null : rtpConnection.getCallIntegration();
 452            if (callIntegration == null
 453                    || callIntegration.getSelectedAudioDevice()
 454                            == CallIntegration.AudioDevice.EARPIECE) {
 455                acquireProximityWakeLock();
 456            }
 457        }
 458        lockOrientation(media);
 459    }
 460
 461    private void lockOrientation(final Set<Media> media) {
 462        if (Media.audioOnly(media)) {
 463            setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
 464        } else {
 465            setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED);
 466        }
 467    }
 468
 469    @SuppressLint("WakelockTimeout")
 470    private void acquireProximityWakeLock() {
 471        final PowerManager powerManager = (PowerManager) getSystemService(Context.POWER_SERVICE);
 472        if (powerManager == null) {
 473            Log.e(Config.LOGTAG, "power manager not available");
 474            return;
 475        }
 476        if (isFinishing()) {
 477            Log.e(Config.LOGTAG, "do not acquire wakelock. activity is finishing");
 478            return;
 479        }
 480        if (this.mProximityWakeLock == null) {
 481            this.mProximityWakeLock =
 482                    powerManager.newWakeLock(
 483                            PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK, PROXIMITY_WAKE_LOCK_TAG);
 484        }
 485        if (!this.mProximityWakeLock.isHeld()) {
 486            Log.d(Config.LOGTAG, "acquiring proximity wake lock");
 487            this.mProximityWakeLock.acquire();
 488        }
 489    }
 490
 491    private void releaseProximityWakeLock() {
 492        if (this.mProximityWakeLock != null && mProximityWakeLock.isHeld()) {
 493            Log.d(Config.LOGTAG, "releasing proximity wake lock");
 494            this.mProximityWakeLock.release(PowerManager.RELEASE_FLAG_WAIT_FOR_NO_PROXIMITY);
 495            this.mProximityWakeLock = null;
 496        }
 497    }
 498
 499    private void putProximityWakeLockInProperState(final CallIntegration.AudioDevice audioDevice) {
 500        if (audioDevice == CallIntegration.AudioDevice.EARPIECE) {
 501            acquireProximityWakeLock();
 502        } else {
 503            releaseProximityWakeLock();
 504        }
 505    }
 506
 507    @Override
 508    protected void refreshUiReal() {}
 509
 510    @Override
 511    public void onNewIntent(final Intent intent) {
 512        Log.d(Config.LOGTAG, this.getClass().getName() + ".onNewIntent()");
 513        super.onNewIntent(intent);
 514        if (intent == null) {
 515            return;
 516        }
 517        setIntent(intent);
 518        if (xmppConnectionService == null) {
 519            Log.d(
 520                    Config.LOGTAG,
 521                    "RtpSessionActivity: background service wasn't bound in onNewIntent()");
 522            return;
 523        }
 524        initializeWithIntent(Event.ON_NEW_INTENT, intent);
 525    }
 526
 527    @Override
 528    protected void onBackendConnected() {
 529        final var intent = getIntent();
 530        if (intent == null) {
 531            return;
 532        }
 533        initializeWithIntent(Event.ON_BACKEND_CONNECTED, intent);
 534    }
 535
 536    private void initializeWithIntent(final Event event, @NonNull final Intent intent) {
 537        final String action = intent.getAction();
 538        Log.d(Config.LOGTAG, "initializeWithIntent(" + event + "," + action + ")");
 539        final Account account = extractAccount(intent);
 540        final Jid with = Jid.ofEscaped(intent.getStringExtra(EXTRA_WITH));
 541        final String sessionId = intent.getStringExtra(EXTRA_SESSION_ID);
 542        if (sessionId != null) {
 543            if (initializeActivityWithRunningRtpSession(account, with, sessionId)) {
 544                return;
 545            }
 546            if (ACTION_ACCEPT_CALL.equals(intent.getAction())) {
 547                Log.d(Config.LOGTAG, "intent action was accept");
 548                requestPermissionsAndAcceptCall();
 549                resetIntent(intent.getExtras());
 550            }
 551        } else if (Intent.ACTION_VIEW.equals(action)) {
 552            final String proposedSessionId = intent.getStringExtra(EXTRA_PROPOSED_SESSION_ID);
 553            final JingleConnectionManager.TerminatedRtpSession terminatedRtpSession =
 554                    xmppConnectionService
 555                            .getJingleConnectionManager()
 556                            .getTerminalSessionState(with, proposedSessionId);
 557            if (terminatedRtpSession != null) {
 558                // termination (due to message error or 'busy' was faster than opening the activity
 559                initializeWithTerminatedSessionState(account, with, terminatedRtpSession);
 560                return;
 561            }
 562            final String extraLastState = intent.getStringExtra(EXTRA_LAST_REPORTED_STATE);
 563            final RtpEndUserState state =
 564                    extraLastState == null ? null : RtpEndUserState.valueOf(extraLastState);
 565            if (state != null) {
 566                Log.d(Config.LOGTAG, "restored last state from intent extra");
 567                updateButtonConfiguration(state);
 568                updateVerifiedShield(false);
 569                updateStateDisplay(state);
 570                updateIncomingCallScreen(state);
 571                invalidateOptionsMenu();
 572            }
 573            setWith(account.getRoster().getContact(with), state);
 574            if (xmppConnectionService
 575                    .getJingleConnectionManager()
 576                    .fireJingleRtpConnectionStateUpdates()) {
 577                return;
 578            }
 579            if (END_CARD.contains(state)) {
 580                return;
 581            }
 582            final String lastAction = intent.getStringExtra(EXTRA_LAST_ACTION);
 583            final Set<Media> media = actionToMedia(lastAction);
 584            if (xmppConnectionService
 585                    .getJingleConnectionManager()
 586                    .hasMatchingProposal(account, with)) {
 587                putScreenInCallMode(media);
 588                return;
 589            }
 590            Log.d(Config.LOGTAG, "restored state (" + state + ") was not an end card. finishing");
 591            finish();
 592        }
 593    }
 594
 595    private void setWith(final RtpEndUserState state) {
 596        setWith(getWith(), state);
 597    }
 598
 599    private void setWith(final Contact contact, final RtpEndUserState state) {
 600        binding.with.setText(contact.getDisplayName());
 601        if (Arrays.asList(RtpEndUserState.INCOMING_CALL, RtpEndUserState.ACCEPTING_CALL)
 602                .contains(state)) {
 603            binding.withJid.setText(contact.getJid().asBareJid().toEscapedString());
 604            binding.withJid.setVisibility(View.VISIBLE);
 605        } else {
 606            binding.withJid.setVisibility(View.GONE);
 607        }
 608    }
 609
 610    @Override
 611    public void onRequestPermissionsResult(
 612            int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
 613        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
 614        final PermissionUtils.PermissionResult permissionResult =
 615                PermissionUtils.removeBluetoothConnect(permissions, grantResults);
 616        if (PermissionUtils.allGranted(permissionResult.grantResults)) {
 617            if (requestCode == REQUEST_ACCEPT_CALL) {
 618                acceptCall();
 619            } else if (requestCode == REQUEST_ACCEPT_CONTENT) {
 620                acceptContentAdd();
 621            } else if (requestCode == REQUEST_ADD_CONTENT) {
 622                switchToVideo();
 623            }
 624        } else {
 625            @StringRes int res;
 626            final String firstDenied =
 627                    getFirstDenied(permissionResult.grantResults, permissionResult.permissions);
 628            if (firstDenied == null) {
 629                return;
 630            }
 631            if (Manifest.permission.RECORD_AUDIO.equals(firstDenied)) {
 632                res = R.string.no_microphone_permission;
 633            } else if (Manifest.permission.CAMERA.equals(firstDenied)) {
 634                res = R.string.no_camera_permission;
 635            } else {
 636                throw new IllegalStateException("Invalid permission result request");
 637            }
 638            Toast.makeText(this, getString(res, getString(R.string.app_name)), Toast.LENGTH_SHORT)
 639                    .show();
 640        }
 641    }
 642
 643    @Override
 644    public void onStart() {
 645        super.onStart();
 646        mHandler.postDelayed(mTickExecutor, CALL_DURATION_UPDATE_INTERVAL);
 647        this.binding.remoteVideo.setOnAspectRatioChanged(this);
 648    }
 649
 650    @Override
 651    public void onStop() {
 652        mHandler.removeCallbacks(mTickExecutor);
 653        binding.remoteVideo.release();
 654        binding.remoteVideo.setOnAspectRatioChanged(null);
 655        binding.localVideo.release();
 656        final WeakReference<JingleRtpConnection> weakReference = this.rtpConnectionReference;
 657        final JingleRtpConnection jingleRtpConnection =
 658                weakReference == null ? null : weakReference.get();
 659        if (jingleRtpConnection != null) {
 660            releaseVideoTracks(jingleRtpConnection);
 661        }
 662        releaseProximityWakeLock();
 663        super.onStop();
 664    }
 665
 666    private void releaseVideoTracks(final JingleRtpConnection jingleRtpConnection) {
 667        final Optional<VideoTrack> remoteVideo = jingleRtpConnection.getRemoteVideoTrack();
 668        if (remoteVideo.isPresent()) {
 669            remoteVideo.get().removeSink(binding.remoteVideo);
 670        }
 671        final Optional<VideoTrack> localVideo = jingleRtpConnection.getLocalVideoTrack();
 672        if (localVideo.isPresent()) {
 673            localVideo.get().removeSink(binding.localVideo);
 674        }
 675    }
 676
 677    @Override
 678    public void onBackPressed() {
 679        if (isConnected()) {
 680            if (switchToPictureInPicture()) {
 681                return;
 682            }
 683        } else {
 684            endCall();
 685        }
 686        super.onBackPressed();
 687    }
 688
 689    @Override
 690    public void onUserLeaveHint() {
 691        super.onUserLeaveHint();
 692        if (switchToPictureInPicture()) {
 693            return;
 694        }
 695        // TODO apparently this method is not getting called on Android 10 when using the task
 696        // switcher
 697        if (emptyReference(rtpConnectionReference) && xmppConnectionService != null) {
 698            retractSessionProposal();
 699        }
 700    }
 701
 702    private boolean isConnected() {
 703        final JingleRtpConnection connection =
 704                this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
 705        final RtpEndUserState endUserState =
 706                connection == null ? null : connection.getEndUserState();
 707        return STATES_CONSIDERED_CONNECTED.contains(endUserState)
 708                || endUserState == RtpEndUserState.INCOMING_CONTENT_ADD;
 709    }
 710
 711    private boolean switchToPictureInPicture() {
 712        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O && deviceSupportsPictureInPicture()) {
 713            if (shouldBePictureInPicture()) {
 714                startPictureInPicture();
 715                return true;
 716            }
 717        }
 718        return false;
 719    }
 720
 721    @RequiresApi(api = Build.VERSION_CODES.O)
 722    private void startPictureInPicture() {
 723        try {
 724            final Rational rational = this.binding.remoteVideo.getAspectRatio();
 725            final Rational clippedRational = Rationals.clip(rational);
 726            Log.d(
 727                    Config.LOGTAG,
 728                    "suggested rational " + rational + ". clipped to " + clippedRational);
 729            enterPictureInPictureMode(
 730                    new PictureInPictureParams.Builder().setAspectRatio(clippedRational).build());
 731        } catch (final IllegalStateException e) {
 732            // this sometimes happens on Samsung phones (possibly when Knox is enabled)
 733            Log.w(Config.LOGTAG, "unable to enter picture in picture mode", e);
 734        }
 735    }
 736
 737    @Override
 738    public void onAspectRatioChanged(final Rational rational) {
 739        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O && isPictureInPicture()) {
 740            final Rational clippedRational = Rationals.clip(rational);
 741            Log.d(
 742                    Config.LOGTAG,
 743                    "suggested rational after aspect ratio change "
 744                            + rational
 745                            + ". clipped to "
 746                            + clippedRational);
 747            setPictureInPictureParams(
 748                    new PictureInPictureParams.Builder().setAspectRatio(clippedRational).build());
 749        }
 750    }
 751
 752    private boolean deviceSupportsPictureInPicture() {
 753        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 754            return getPackageManager().hasSystemFeature(PackageManager.FEATURE_PICTURE_IN_PICTURE);
 755        } else {
 756            return false;
 757        }
 758    }
 759
 760    private boolean shouldBePictureInPicture() {
 761        try {
 762            final JingleRtpConnection rtpConnection = requireRtpConnection();
 763            return rtpConnection.getMedia().contains(Media.VIDEO)
 764                    && Arrays.asList(
 765                                    RtpEndUserState.ACCEPTING_CALL,
 766                                    RtpEndUserState.CONNECTING,
 767                                    RtpEndUserState.CONNECTED)
 768                            .contains(rtpConnection.getEndUserState());
 769        } catch (final IllegalStateException e) {
 770            return false;
 771        }
 772    }
 773
 774    private boolean initializeActivityWithRunningRtpSession(
 775            final Account account, Jid with, String sessionId) {
 776        final WeakReference<JingleRtpConnection> reference =
 777                xmppConnectionService
 778                        .getJingleConnectionManager()
 779                        .findJingleRtpConnection(account, with, sessionId);
 780        if (reference == null || reference.get() == null) {
 781            final JingleConnectionManager.TerminatedRtpSession terminatedRtpSession =
 782                    xmppConnectionService
 783                            .getJingleConnectionManager()
 784                            .getTerminalSessionState(with, sessionId);
 785            if (terminatedRtpSession == null) {
 786                Log.e(Config.LOGTAG, "failed to initialize activity with running rtp session. session not found");
 787                finish();
 788                return true;
 789            }
 790            initializeWithTerminatedSessionState(account, with, terminatedRtpSession);
 791            return true;
 792        }
 793        this.rtpConnectionReference = reference;
 794        final RtpEndUserState currentState = requireRtpConnection().getEndUserState();
 795        final boolean verified = requireRtpConnection().isVerified();
 796        if (currentState == RtpEndUserState.ENDED) {
 797            finish();
 798            return true;
 799        }
 800        final Set<Media> media = getMedia();
 801        final ContentAddition contentAddition = getPendingContentAddition();
 802        if (currentState == RtpEndUserState.INCOMING_CALL) {
 803            getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
 804        }
 805        if (JingleRtpConnection.STATES_SHOWING_ONGOING_CALL.contains(
 806                requireRtpConnection().getState())) {
 807            putScreenInCallMode();
 808        }
 809        setWith(currentState);
 810        updateVideoViews(currentState);
 811        updateStateDisplay(currentState, media, contentAddition);
 812        updateVerifiedShield(verified && STATES_SHOWING_SWITCH_TO_CHAT.contains(currentState));
 813        updateButtonConfiguration(currentState, media, contentAddition);
 814        updateIncomingCallScreen(currentState);
 815        invalidateOptionsMenu();
 816        return false;
 817    }
 818
 819    private void initializeWithTerminatedSessionState(
 820            final Account account,
 821            final Jid with,
 822            final JingleConnectionManager.TerminatedRtpSession terminatedRtpSession) {
 823        Log.d(Config.LOGTAG, "initializeWithTerminatedSessionState()");
 824        if (terminatedRtpSession.state == RtpEndUserState.ENDED) {
 825            finish();
 826            return;
 827        }
 828        final RtpEndUserState state = terminatedRtpSession.state;
 829        resetIntent(account, with, terminatedRtpSession.state, terminatedRtpSession.media);
 830        updateButtonConfiguration(state);
 831        updateStateDisplay(state);
 832        updateIncomingCallScreen(state);
 833        updateCallDuration();
 834        updateVerifiedShield(false);
 835        invalidateOptionsMenu();
 836        setWith(account.getRoster().getContact(with), state);
 837    }
 838
 839    private void reInitializeActivityWithRunningRtpSession(
 840            final Account account, Jid with, String sessionId) {
 841        runOnUiThread(() -> initializeActivityWithRunningRtpSession(account, with, sessionId));
 842        resetIntent(account, with, sessionId);
 843    }
 844
 845    private void resetIntent(final Account account, final Jid with, final String sessionId) {
 846        final Intent intent = new Intent(Intent.ACTION_VIEW);
 847        intent.putExtra(EXTRA_ACCOUNT, account.getJid().toEscapedString());
 848        intent.putExtra(EXTRA_WITH, with.toEscapedString());
 849        intent.putExtra(EXTRA_SESSION_ID, sessionId);
 850        setIntent(intent);
 851    }
 852
 853    private void ensureSurfaceViewRendererIsSetup(final SurfaceViewRenderer surfaceViewRenderer) {
 854        surfaceViewRenderer.setVisibility(View.VISIBLE);
 855        try {
 856            surfaceViewRenderer.init(requireRtpConnection().getEglBaseContext(), null);
 857        } catch (final IllegalStateException ignored) {
 858            // SurfaceViewRenderer was already initialized
 859        } catch (final RuntimeException e) {
 860            if (Throwables.getRootCause(e) instanceof GLException glException) {
 861                Log.w(Config.LOGTAG, "could not set up hardware renderer", glException);
 862            }
 863        }
 864        surfaceViewRenderer.setEnableHardwareScaler(true);
 865    }
 866
 867    private void updateStateDisplay(final RtpEndUserState state) {
 868        updateStateDisplay(state, Collections.emptySet(), null);
 869    }
 870
 871    private void updateStateDisplay(
 872            final RtpEndUserState state,
 873            final Set<Media> media,
 874            final ContentAddition contentAddition) {
 875        switch (state) {
 876            case INCOMING_CALL -> {
 877                Preconditions.checkArgument(media.size() > 0, "Media must not be empty");
 878                if (media.contains(Media.VIDEO)) {
 879                    setTitle(R.string.rtp_state_incoming_video_call);
 880                } else {
 881                    setTitle(R.string.rtp_state_incoming_call);
 882                }
 883            }
 884            case INCOMING_CONTENT_ADD -> {
 885                if (contentAddition != null && contentAddition.media().contains(Media.VIDEO)) {
 886                    setTitle(R.string.rtp_state_content_add_video);
 887                } else {
 888                    setTitle(R.string.rtp_state_content_add);
 889                }
 890            }
 891            case CONNECTING -> setTitle(R.string.rtp_state_connecting);
 892            case CONNECTED -> setTitle(R.string.rtp_state_connected);
 893            case RECONNECTING -> setTitle(R.string.rtp_state_reconnecting);
 894            case ACCEPTING_CALL -> setTitle(R.string.rtp_state_accepting_call);
 895            case ENDING_CALL -> setTitle(R.string.rtp_state_ending_call);
 896            case FINDING_DEVICE -> setTitle(R.string.rtp_state_finding_device);
 897            case RINGING -> setTitle(R.string.rtp_state_ringing);
 898            case DECLINED_OR_BUSY -> setTitle(R.string.rtp_state_declined_or_busy);
 899            case CONTACT_OFFLINE -> setTitle(R.string.rtp_state_contact_offline);
 900            case CONNECTIVITY_ERROR -> setTitle(R.string.rtp_state_connectivity_error);
 901            case CONNECTIVITY_LOST_ERROR -> setTitle(R.string.rtp_state_connectivity_lost_error);
 902            case RETRACTED -> setTitle(R.string.rtp_state_retracted);
 903            case APPLICATION_ERROR -> setTitle(R.string.rtp_state_application_failure);
 904            case SECURITY_ERROR -> setTitle(R.string.rtp_state_security_error);
 905            case ENDED -> throw new IllegalStateException(
 906                    "Activity should have called finishAndReleaseWakeLock();");
 907            default -> throw new IllegalStateException(
 908                    String.format("State %s has not been handled in UI", state));
 909        }
 910    }
 911
 912    private void updateVerifiedShield(final boolean verified) {
 913        if (isPictureInPicture()) {
 914            this.binding.verified.setVisibility(View.GONE);
 915            return;
 916        }
 917        this.binding.verified.setVisibility(verified ? View.VISIBLE : View.GONE);
 918    }
 919
 920    private void updateIncomingCallScreen(final RtpEndUserState state) {
 921        updateIncomingCallScreen(state, null);
 922    }
 923
 924    private void updateIncomingCallScreen(final RtpEndUserState state, final Contact contact) {
 925        if (state == RtpEndUserState.INCOMING_CALL || state == RtpEndUserState.ACCEPTING_CALL) {
 926            final boolean show = getResources().getBoolean(R.bool.show_avatar_incoming_call);
 927            if (show) {
 928                binding.contactPhoto.setVisibility(View.VISIBLE);
 929                if (contact == null) {
 930                    AvatarWorkerTask.loadAvatar(
 931                            getWith(), binding.contactPhoto, R.dimen.publish_avatar_size);
 932                } else {
 933                    AvatarWorkerTask.loadAvatar(
 934                            contact, binding.contactPhoto, R.dimen.publish_avatar_size);
 935                }
 936            } else {
 937                binding.contactPhoto.setVisibility(View.GONE);
 938            }
 939            final Account account = contact == null ? getWith().getAccount() : contact.getAccount();
 940            binding.usingAccount.setVisibility(View.VISIBLE);
 941            binding.usingAccount.setText(
 942                    getString(
 943                            R.string.using_account,
 944                            account.getJid().asBareJid().toEscapedString()));
 945        } else {
 946            binding.usingAccount.setVisibility(View.GONE);
 947            binding.contactPhoto.setVisibility(View.GONE);
 948        }
 949    }
 950
 951    private Set<Media> getMedia() {
 952        return requireRtpConnection().getMedia();
 953    }
 954
 955    public ContentAddition getPendingContentAddition() {
 956        return requireRtpConnection().getPendingContentAddition();
 957    }
 958
 959    private void updateButtonConfiguration(final RtpEndUserState state) {
 960        updateButtonConfiguration(state, Collections.emptySet(), null);
 961    }
 962
 963    @SuppressLint("RestrictedApi")
 964    private void updateButtonConfiguration(
 965            final RtpEndUserState state,
 966            final Set<Media> media,
 967            final ContentAddition contentAddition) {
 968        if (state == RtpEndUserState.ENDING_CALL || isPictureInPicture()) {
 969            this.binding.rejectCall.setVisibility(View.INVISIBLE);
 970            this.binding.endCall.setVisibility(View.INVISIBLE);
 971            this.binding.acceptCall.setVisibility(View.INVISIBLE);
 972        } else if (state == RtpEndUserState.INCOMING_CALL) {
 973            this.binding.rejectCall.setContentDescription(getString(R.string.dismiss_call));
 974            this.binding.rejectCall.setOnClickListener(this::rejectCall);
 975            this.binding.rejectCall.setImageResource(R.drawable.ic_call_end_24dp);
 976            this.binding.rejectCall.setVisibility(View.VISIBLE);
 977            this.binding.endCall.setVisibility(View.INVISIBLE);
 978            this.binding.acceptCall.setContentDescription(getString(R.string.answer_call));
 979            this.binding.acceptCall.setOnClickListener(this::acceptCall);
 980            this.binding.acceptCall.setImageResource(R.drawable.ic_call_24dp);
 981            this.binding.acceptCall.setVisibility(View.VISIBLE);
 982        } else if (state == RtpEndUserState.INCOMING_CONTENT_ADD) {
 983            this.binding.rejectCall.setContentDescription(
 984                    getString(R.string.reject_switch_to_video));
 985            this.binding.rejectCall.setOnClickListener(this::rejectContentAdd);
 986            this.binding.rejectCall.setImageResource(R.drawable.ic_clear_24dp);
 987            this.binding.rejectCall.setVisibility(View.VISIBLE);
 988            this.binding.endCall.setVisibility(View.INVISIBLE);
 989            this.binding.acceptCall.setContentDescription(getString(R.string.accept));
 990            this.binding.acceptCall.setOnClickListener((v -> acceptContentAdd(contentAddition)));
 991            this.binding.acceptCall.setImageResource(R.drawable.ic_check_24dp);
 992            this.binding.acceptCall.setVisibility(View.VISIBLE);
 993        } else if (asList(RtpEndUserState.DECLINED_OR_BUSY, RtpEndUserState.CONTACT_OFFLINE)
 994                .contains(state)) {
 995            this.binding.rejectCall.setContentDescription(getString(R.string.exit));
 996            this.binding.rejectCall.setOnClickListener(this::exit);
 997            this.binding.rejectCall.setImageResource(R.drawable.ic_clear_24dp);
 998            this.binding.rejectCall.setVisibility(View.VISIBLE);
 999            this.binding.endCall.setVisibility(View.INVISIBLE);
1000            this.binding.acceptCall.setContentDescription(getString(R.string.record_voice_mail));
1001            this.binding.acceptCall.setOnClickListener(this::recordVoiceMail);
1002            this.binding.acceptCall.setImageResource(R.drawable.ic_voicemail_24dp);
1003            this.binding.acceptCall.setVisibility(View.VISIBLE);
1004        } else if (asList(
1005                        RtpEndUserState.CONNECTIVITY_ERROR,
1006                        RtpEndUserState.CONNECTIVITY_LOST_ERROR,
1007                        RtpEndUserState.APPLICATION_ERROR,
1008                        RtpEndUserState.RETRACTED,
1009                        RtpEndUserState.SECURITY_ERROR)
1010                .contains(state)) {
1011            this.binding.rejectCall.setContentDescription(getString(R.string.exit));
1012            this.binding.rejectCall.setOnClickListener(this::exit);
1013            this.binding.rejectCall.setImageResource(R.drawable.ic_clear_24dp);
1014            this.binding.rejectCall.setVisibility(View.VISIBLE);
1015            this.binding.endCall.setVisibility(View.INVISIBLE);
1016            this.binding.acceptCall.setContentDescription(getString(R.string.try_again));
1017            this.binding.acceptCall.setOnClickListener(this::retry);
1018            this.binding.acceptCall.setImageResource(R.drawable.ic_replay_24dp);
1019            this.binding.acceptCall.setVisibility(View.VISIBLE);
1020        } else {
1021            this.binding.rejectCall.setVisibility(View.INVISIBLE);
1022            this.binding.endCall.setContentDescription(getString(R.string.hang_up));
1023            this.binding.endCall.setOnClickListener(this::endCall);
1024            this.binding.endCall.setImageResource(R.drawable.ic_call_end_24dp);
1025            this.binding.endCall.setVisibility(View.VISIBLE);
1026            this.binding.acceptCall.setVisibility(View.INVISIBLE);
1027        }
1028        updateInCallButtonConfiguration(state, media);
1029    }
1030
1031    private boolean isPictureInPicture() {
1032        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
1033            return isInPictureInPictureMode();
1034        } else {
1035            return false;
1036        }
1037    }
1038
1039    private void updateInCallButtonConfiguration() {
1040        updateInCallButtonConfiguration(
1041                requireRtpConnection().getEndUserState(), requireRtpConnection().getMedia());
1042    }
1043
1044    @SuppressLint("RestrictedApi")
1045    private void updateInCallButtonConfiguration(
1046            final RtpEndUserState state, final Set<Media> media) {
1047        if (STATES_CONSIDERED_CONNECTED.contains(state) && !isPictureInPicture()) {
1048            Preconditions.checkArgument(!media.isEmpty(), "Media must not be empty");
1049            if (media.contains(Media.VIDEO)) {
1050                final JingleRtpConnection rtpConnection = requireRtpConnection();
1051                updateInCallButtonConfigurationVideo(
1052                        rtpConnection.isVideoEnabled(), rtpConnection.isCameraSwitchable());
1053            } else {
1054                final CallIntegration callIntegration = requireRtpConnection().getCallIntegration();
1055                updateInCallButtonConfigurationSpeaker(
1056                        callIntegration.getSelectedAudioDevice(),
1057                        callIntegration.getAudioDevices().size());
1058                this.binding.inCallActionFarRight.setVisibility(View.GONE);
1059            }
1060            if (media.contains(Media.AUDIO)) {
1061                updateInCallButtonConfigurationMicrophone(
1062                        requireRtpConnection().isMicrophoneEnabled());
1063            } else {
1064                this.binding.inCallActionLeft.setVisibility(View.GONE);
1065            }
1066        } else if (STATES_SHOWING_SPEAKER_CONFIGURATION.contains(state)
1067                && !isPictureInPicture()
1068                && Media.audioOnly(media)) {
1069            final CallIntegration callIntegration;
1070            try {
1071                callIntegration = requireCallIntegration();
1072            } catch (final IllegalStateException e) {
1073                Log.e(Config.LOGTAG, "can not update InCallButtonConfiguration in state " + state);
1074                return;
1075            }
1076            updateInCallButtonConfigurationSpeaker(
1077                    callIntegration.getSelectedAudioDevice(),
1078                    callIntegration.getAudioDevices().size());
1079            this.binding.inCallActionFarRight.setVisibility(View.GONE);
1080        } else {
1081            this.binding.inCallActionLeft.setVisibility(View.GONE);
1082            this.binding.inCallActionRight.setVisibility(View.GONE);
1083            this.binding.inCallActionFarRight.setVisibility(View.GONE);
1084        }
1085    }
1086
1087    @SuppressLint("RestrictedApi")
1088    private void updateInCallButtonConfigurationSpeaker(
1089            final CallIntegration.AudioDevice selectedAudioDevice, final int numberOfChoices) {
1090        switch (selectedAudioDevice) {
1091            case EARPIECE -> {
1092                this.binding.inCallActionRight.setImageResource(
1093                        R.drawable.ic_volume_off_24dp);
1094                if (numberOfChoices >= 2) {
1095                    this.binding.inCallActionRight.setOnClickListener(this::switchToSpeaker);
1096                } else {
1097                    this.binding.inCallActionRight.setOnClickListener(null);
1098                    this.binding.inCallActionRight.setClickable(false);
1099                }
1100            }
1101            case WIRED_HEADSET -> {
1102                this.binding.inCallActionRight.setImageResource(R.drawable.ic_headset_mic_24dp);
1103                this.binding.inCallActionRight.setOnClickListener(null);
1104                this.binding.inCallActionRight.setClickable(false);
1105            }
1106            case SPEAKER_PHONE -> {
1107                this.binding.inCallActionRight.setImageResource(R.drawable.ic_volume_up_24dp);
1108                if (numberOfChoices >= 2) {
1109                    this.binding.inCallActionRight.setOnClickListener(this::switchToEarpiece);
1110                } else {
1111                    this.binding.inCallActionRight.setOnClickListener(null);
1112                    this.binding.inCallActionRight.setClickable(false);
1113                }
1114            }
1115            case BLUETOOTH -> {
1116                this.binding.inCallActionRight.setImageResource(
1117                        R.drawable.ic_bluetooth_audio_24dp);
1118                this.binding.inCallActionRight.setOnClickListener(null);
1119                this.binding.inCallActionRight.setClickable(false);
1120            }
1121        }
1122        this.binding.inCallActionRight.setVisibility(View.VISIBLE);
1123    }
1124
1125    @SuppressLint("RestrictedApi")
1126    private void updateInCallButtonConfigurationVideo(
1127            final boolean videoEnabled, final boolean isCameraSwitchable) {
1128        this.binding.inCallActionRight.setVisibility(View.VISIBLE);
1129        if (isCameraSwitchable) {
1130            this.binding.inCallActionFarRight.setImageResource(
1131                    R.drawable.ic_flip_camera_android_24dp);
1132            this.binding.inCallActionFarRight.setVisibility(View.VISIBLE);
1133            this.binding.inCallActionFarRight.setOnClickListener(this::switchCamera);
1134        } else {
1135            this.binding.inCallActionFarRight.setVisibility(View.GONE);
1136        }
1137        if (videoEnabled) {
1138            this.binding.inCallActionRight.setImageResource(R.drawable.ic_videocam_24dp);
1139            this.binding.inCallActionRight.setOnClickListener(this::disableVideo);
1140        } else {
1141            this.binding.inCallActionRight.setImageResource(R.drawable.ic_videocam_off_24dp);
1142            this.binding.inCallActionRight.setOnClickListener(this::enableVideo);
1143        }
1144    }
1145
1146    private void switchCamera(final View view) {
1147        Futures.addCallback(
1148                requireRtpConnection().switchCamera(),
1149                new FutureCallback<>() {
1150                    @Override
1151                    public void onSuccess(@Nullable Boolean isFrontCamera) {
1152                        binding.localVideo.setMirror(Boolean.TRUE.equals(isFrontCamera));
1153                    }
1154
1155                    @Override
1156                    public void onFailure(@NonNull final Throwable throwable) {
1157                        Log.d(
1158                                Config.LOGTAG,
1159                                "could not switch camera",
1160                                Throwables.getRootCause(throwable));
1161                        Toast.makeText(
1162                                        RtpSessionActivity.this,
1163                                        R.string.could_not_switch_camera,
1164                                        Toast.LENGTH_LONG)
1165                                .show();
1166                    }
1167                },
1168                MainThreadExecutor.getInstance());
1169    }
1170
1171    private void enableVideo(View view) {
1172        try {
1173            requireRtpConnection().setVideoEnabled(true);
1174        } catch (final IllegalStateException e) {
1175            Toast.makeText(this, R.string.unable_to_enable_video, Toast.LENGTH_SHORT).show();
1176            return;
1177        }
1178        updateInCallButtonConfigurationVideo(true, requireRtpConnection().isCameraSwitchable());
1179    }
1180
1181    private void disableVideo(View view) {
1182        final JingleRtpConnection rtpConnection = requireRtpConnection();
1183        final ContentAddition pending = rtpConnection.getPendingContentAddition();
1184        if (pending != null && pending.direction == ContentAddition.Direction.OUTGOING) {
1185            rtpConnection.retractContentAdd();
1186            return;
1187        }
1188        requireRtpConnection().setVideoEnabled(false);
1189        updateInCallButtonConfigurationVideo(false, requireRtpConnection().isCameraSwitchable());
1190    }
1191
1192    @SuppressLint("RestrictedApi")
1193    private void updateInCallButtonConfigurationMicrophone(final boolean microphoneEnabled) {
1194        if (microphoneEnabled) {
1195            this.binding.inCallActionLeft.setImageResource(R.drawable.ic_mic_24dp);
1196            this.binding.inCallActionLeft.setOnClickListener(this::disableMicrophone);
1197        } else {
1198            this.binding.inCallActionLeft.setImageResource(R.drawable.ic_mic_off_24dp);
1199            this.binding.inCallActionLeft.setOnClickListener(this::enableMicrophone);
1200        }
1201        this.binding.inCallActionLeft.setVisibility(View.VISIBLE);
1202    }
1203
1204    private void updateCallDuration() {
1205        final JingleRtpConnection connection =
1206                this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
1207        if (connection == null || connection.getMedia().contains(Media.VIDEO)) {
1208            this.binding.duration.setVisibility(View.GONE);
1209            return;
1210        }
1211        if (connection.zeroDuration()) {
1212            this.binding.duration.setVisibility(View.GONE);
1213        } else {
1214            this.binding.duration.setText(
1215                    TimeFrameUtils.formatElapsedTime(connection.getCallDuration(), false));
1216            this.binding.duration.setVisibility(View.VISIBLE);
1217        }
1218    }
1219
1220    private void updateVideoViews(final RtpEndUserState state) {
1221        if (END_CARD.contains(state) || state == RtpEndUserState.ENDING_CALL) {
1222            binding.localVideo.setVisibility(View.GONE);
1223            binding.localVideo.release();
1224            binding.remoteVideoWrapper.setVisibility(View.GONE);
1225            binding.remoteVideo.release();
1226            binding.pipLocalMicOffIndicator.setVisibility(View.GONE);
1227            if (isPictureInPicture()) {
1228                binding.appBarLayout.setVisibility(View.GONE);
1229                binding.pipPlaceholder.setVisibility(View.VISIBLE);
1230                if (Arrays.asList(
1231                                RtpEndUserState.APPLICATION_ERROR,
1232                                RtpEndUserState.CONNECTIVITY_ERROR,
1233                                RtpEndUserState.SECURITY_ERROR)
1234                        .contains(state)) {
1235                    binding.pipWarning.setVisibility(View.VISIBLE);
1236                    binding.pipWaiting.setVisibility(View.GONE);
1237                } else {
1238                    binding.pipWarning.setVisibility(View.GONE);
1239                    binding.pipWaiting.setVisibility(View.GONE);
1240                }
1241            } else {
1242                binding.appBarLayout.setVisibility(View.VISIBLE);
1243                binding.pipPlaceholder.setVisibility(View.GONE);
1244            }
1245            getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
1246            return;
1247        }
1248        if (isPictureInPicture() && STATES_SHOWING_PIP_PLACEHOLDER.contains(state)) {
1249            binding.localVideo.setVisibility(View.GONE);
1250            binding.remoteVideoWrapper.setVisibility(View.GONE);
1251            binding.appBarLayout.setVisibility(View.GONE);
1252            binding.pipPlaceholder.setVisibility(View.VISIBLE);
1253            binding.pipWarning.setVisibility(View.GONE);
1254            binding.pipWaiting.setVisibility(View.VISIBLE);
1255            binding.pipLocalMicOffIndicator.setVisibility(View.GONE);
1256            return;
1257        }
1258        final Optional<VideoTrack> localVideoTrack = getLocalVideoTrack();
1259        if (localVideoTrack.isPresent() && !isPictureInPicture()) {
1260            ensureSurfaceViewRendererIsSetup(binding.localVideo);
1261            // paint local view over remote view
1262            binding.localVideo.setZOrderMediaOverlay(true);
1263            binding.localVideo.setMirror(requireRtpConnection().isFrontCamera());
1264            addSink(localVideoTrack.get(), binding.localVideo);
1265        } else {
1266            binding.localVideo.setVisibility(View.GONE);
1267        }
1268        final Optional<VideoTrack> remoteVideoTrack = getRemoteVideoTrack();
1269        if (remoteVideoTrack.isPresent()) {
1270            ensureSurfaceViewRendererIsSetup(binding.remoteVideo);
1271            addSink(remoteVideoTrack.get(), binding.remoteVideo);
1272            binding.remoteVideo.setScalingType(
1273                    RendererCommon.ScalingType.SCALE_ASPECT_FILL,
1274                    RendererCommon.ScalingType.SCALE_ASPECT_FIT);
1275            if (state == RtpEndUserState.CONNECTED) {
1276                binding.appBarLayout.setVisibility(View.GONE);
1277                getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
1278                binding.remoteVideoWrapper.setVisibility(View.VISIBLE);
1279            } else {
1280                binding.appBarLayout.setVisibility(View.VISIBLE);
1281                getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
1282                binding.remoteVideoWrapper.setVisibility(View.GONE);
1283            }
1284            if (isPictureInPicture() && !requireRtpConnection().isMicrophoneEnabled()) {
1285                binding.pipLocalMicOffIndicator.setVisibility(View.VISIBLE);
1286            } else {
1287                binding.pipLocalMicOffIndicator.setVisibility(View.GONE);
1288            }
1289        } else {
1290            getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
1291            binding.remoteVideoWrapper.setVisibility(View.GONE);
1292            binding.pipLocalMicOffIndicator.setVisibility(View.GONE);
1293        }
1294    }
1295
1296    private Optional<VideoTrack> getLocalVideoTrack() {
1297        final JingleRtpConnection connection =
1298                this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
1299        if (connection == null) {
1300            return Optional.absent();
1301        }
1302        return connection.getLocalVideoTrack();
1303    }
1304
1305    private Optional<VideoTrack> getRemoteVideoTrack() {
1306        final JingleRtpConnection connection =
1307                this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
1308        if (connection == null) {
1309            return Optional.absent();
1310        }
1311        return connection.getRemoteVideoTrack();
1312    }
1313
1314    private void disableMicrophone(View view) {
1315        final JingleRtpConnection rtpConnection = requireRtpConnection();
1316        if (rtpConnection.setMicrophoneEnabled(false)) {
1317            updateInCallButtonConfiguration();
1318        }
1319    }
1320
1321    private void enableMicrophone(View view) {
1322        final JingleRtpConnection rtpConnection = requireRtpConnection();
1323        if (rtpConnection.setMicrophoneEnabled(true)) {
1324            updateInCallButtonConfiguration();
1325        }
1326    }
1327
1328    private void switchToEarpiece(final View view) {
1329        requireCallIntegration().setAudioDevice(CallIntegration.AudioDevice.EARPIECE);
1330        acquireProximityWakeLock();
1331    }
1332
1333    private void switchToSpeaker(final View view) {
1334        requireCallIntegration().setAudioDevice(CallIntegration.AudioDevice.SPEAKER_PHONE);
1335        releaseProximityWakeLock();
1336    }
1337
1338    private void retry(final View view) {
1339        final Intent intent = getIntent();
1340        final Account account = extractAccount(intent);
1341        final Jid with = Jid.ofEscaped(intent.getStringExtra(EXTRA_WITH));
1342        final String lastAction = intent.getStringExtra(EXTRA_LAST_ACTION);
1343        final String action = intent.getAction();
1344        final Set<Media> media = actionToMedia(lastAction == null ? action : lastAction);
1345        this.rtpConnectionReference = null;
1346        Log.d(Config.LOGTAG, "attempting retry with " + with.toEscapedString());
1347        CallIntegrationConnectionService.placeCall(xmppConnectionService, account, with, media);
1348    }
1349
1350    private void exit(final View view) {
1351        finish();
1352    }
1353
1354    private void recordVoiceMail(final 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 Conversation conversation =
1359                xmppConnectionService.findOrCreateConversation(account, with, false, true);
1360        final Intent launchIntent = new Intent(this, ConversationsActivity.class);
1361        launchIntent.setAction(ConversationsActivity.ACTION_VIEW_CONVERSATION);
1362        launchIntent.putExtra(ConversationsActivity.EXTRA_CONVERSATION, conversation.getUuid());
1363        launchIntent.setFlags(intent.getFlags() | Intent.FLAG_ACTIVITY_CLEAR_TOP);
1364        launchIntent.putExtra(
1365                ConversationsActivity.EXTRA_POST_INIT_ACTION,
1366                ConversationsActivity.POST_ACTION_RECORD_VOICE);
1367        startActivity(launchIntent);
1368        finish();
1369    }
1370
1371    private Contact getWith() {
1372        final AbstractJingleConnection.Id id = requireRtpConnection().getId();
1373        final Account account = id.account;
1374        return account.getRoster().getContact(id.with);
1375    }
1376
1377    private JingleRtpConnection requireRtpConnection() {
1378        final JingleRtpConnection connection =
1379                this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
1380        if (connection == null) {
1381            throw new IllegalStateException("No RTP connection found");
1382        }
1383        return connection;
1384    }
1385
1386    private CallIntegration requireCallIntegration() {
1387        return requireOngoingRtpSession().getCallIntegration();
1388    }
1389
1390    private OngoingRtpSession requireOngoingRtpSession() {
1391        final JingleRtpConnection connection =
1392                this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
1393        if (connection != null) {
1394            return connection;
1395        }
1396        final Intent currentIntent = getIntent();
1397        final String withExtra =
1398                currentIntent == null ? null : currentIntent.getStringExtra(EXTRA_WITH);
1399        final var account = extractAccount(currentIntent);
1400        if (withExtra == null) {
1401            throw new IllegalStateException("Current intent has no EXTRA_WITH");
1402        }
1403        final var matching =
1404                xmppConnectionService
1405                        .getJingleConnectionManager()
1406                        .matchingProposal(account, Jid.of(withExtra));
1407        if (matching.isPresent()) {
1408            return matching.get();
1409        }
1410        throw new IllegalStateException("No matching session proposal");
1411    }
1412
1413    @Override
1414    public void onJingleRtpConnectionUpdate(
1415            Account account, Jid with, final String sessionId, RtpEndUserState state) {
1416        Log.d(Config.LOGTAG, "onJingleRtpConnectionUpdate(" + state + ")");
1417        if (END_CARD.contains(state)) {
1418            Log.d(Config.LOGTAG, "end card reached");
1419            releaseProximityWakeLock();
1420            runOnUiThread(
1421                    () -> getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON));
1422        }
1423        if (with.isBareJid()) {
1424            updateRtpSessionProposalState(account, with, state);
1425            return;
1426        }
1427        if (emptyReference(this.rtpConnectionReference)) {
1428            if (END_CARD.contains(state)) {
1429                Log.d(Config.LOGTAG, "not reinitializing session");
1430                return;
1431            }
1432            // this happens when going from proposed session to actual session
1433            reInitializeActivityWithRunningRtpSession(account, with, sessionId);
1434            return;
1435        }
1436        final AbstractJingleConnection.Id id = requireRtpConnection().getId();
1437        final boolean verified = requireRtpConnection().isVerified();
1438        final Set<Media> media = getMedia();
1439        lockOrientation(media);
1440        final ContentAddition contentAddition = getPendingContentAddition();
1441        final Contact contact = getWith();
1442        if (account == id.account && id.with.equals(with) && id.sessionId.equals(sessionId)) {
1443            if (state == RtpEndUserState.ENDED) {
1444                finish();
1445                return;
1446            }
1447            runOnUiThread(
1448                    () -> {
1449                        updateStateDisplay(state, media, contentAddition);
1450                        updateVerifiedShield(
1451                                verified && STATES_SHOWING_SWITCH_TO_CHAT.contains(state));
1452                        updateButtonConfiguration(state, media, contentAddition);
1453                        updateVideoViews(state);
1454                        updateIncomingCallScreen(state, contact);
1455                        invalidateOptionsMenu();
1456                    });
1457            if (END_CARD.contains(state)) {
1458                final JingleRtpConnection rtpConnection = requireRtpConnection();
1459                resetIntent(account, with, state, rtpConnection.getMedia());
1460                releaseVideoTracks(rtpConnection);
1461                this.rtpConnectionReference = null;
1462            }
1463        } else {
1464            Log.d(Config.LOGTAG, "received update for other rtp session");
1465        }
1466    }
1467
1468    @Override
1469    public void onAudioDeviceChanged(
1470            final CallIntegration.AudioDevice selectedAudioDevice,
1471            final Set<CallIntegration.AudioDevice> availableAudioDevices) {
1472        Log.d(
1473                Config.LOGTAG,
1474                "onAudioDeviceChanged in activity: selected:"
1475                        + selectedAudioDevice
1476                        + ", available:"
1477                        + availableAudioDevices);
1478        try {
1479            final OngoingRtpSession ongoingRtpSession = requireOngoingRtpSession();
1480            final RtpEndUserState endUserState;
1481            if (ongoingRtpSession instanceof JingleRtpConnection jingleRtpConnection) {
1482                endUserState = jingleRtpConnection.getEndUserState();
1483            } else {
1484                // for session proposals all end user states are functionally the same
1485                endUserState = RtpEndUserState.RINGING;
1486            }
1487            final Set<Media> media = ongoingRtpSession.getMedia();
1488            if (END_CARD.contains(endUserState)) {
1489                Log.d(
1490                        Config.LOGTAG,
1491                        "onAudioDeviceChanged() nothing to do because end card has been reached");
1492            } else {
1493                if (Media.audioOnly(media)
1494                        && STATES_SHOWING_SPEAKER_CONFIGURATION.contains(endUserState)) {
1495                    final CallIntegration callIntegration = requireCallIntegration();
1496                    updateInCallButtonConfigurationSpeaker(
1497                            callIntegration.getSelectedAudioDevice(),
1498                            callIntegration.getAudioDevices().size());
1499                }
1500                Log.d(
1501                        Config.LOGTAG,
1502                        "put proximity wake lock into proper state after device update");
1503                putProximityWakeLockInProperState(selectedAudioDevice);
1504            }
1505        } catch (final IllegalStateException e) {
1506            Log.d(Config.LOGTAG, "RTP connection was not available when audio device changed");
1507        }
1508    }
1509
1510    @Override
1511    protected void onSaveInstanceState(@NonNull @NotNull Bundle outState) {
1512        super.onSaveInstanceState(outState);
1513        outState.putBoolean("dialpad_visible", binding.dialpad.getVisibility() == View.VISIBLE);
1514    }
1515
1516    private void updateRtpSessionProposalState(
1517            final Account account, final Jid with, final RtpEndUserState state) {
1518        final Intent currentIntent = getIntent();
1519        final String withExtra =
1520                currentIntent == null ? null : currentIntent.getStringExtra(EXTRA_WITH);
1521        if (withExtra == null) {
1522            return;
1523        }
1524        final Set<Media> media = actionToMedia(currentIntent.getStringExtra(EXTRA_LAST_ACTION));
1525        if (Jid.ofEscaped(withExtra).asBareJid().equals(with)) {
1526            runOnUiThread(
1527                    () -> {
1528                        updateVerifiedShield(false);
1529                        updateStateDisplay(state);
1530                        updateButtonConfiguration(state, media, null);
1531                        updateIncomingCallScreen(state);
1532                        invalidateOptionsMenu();
1533                    });
1534            resetIntent(account, with, state, media);
1535        }
1536    }
1537
1538    private void resetIntent(final Bundle extras) {
1539        final Intent intent = new Intent(Intent.ACTION_VIEW);
1540        intent.putExtras(extras);
1541        setIntent(intent);
1542    }
1543
1544    private void resetIntent(
1545            final Account account, Jid with, final RtpEndUserState state, final Set<Media> media) {
1546        final Intent intent = new Intent(Intent.ACTION_VIEW);
1547        intent.putExtra(EXTRA_ACCOUNT, account.getJid().toEscapedString());
1548        if (RtpCapability.jmiSupport(account.getRoster().getContact(with))) {
1549            intent.putExtra(EXTRA_WITH, with.asBareJid().toEscapedString());
1550        } else {
1551            intent.putExtra(EXTRA_WITH, with.toEscapedString());
1552        }
1553        intent.putExtra(EXTRA_LAST_REPORTED_STATE, state.toString());
1554        intent.putExtra(
1555                EXTRA_LAST_ACTION,
1556                media.contains(Media.VIDEO) ? ACTION_MAKE_VIDEO_CALL : ACTION_MAKE_VOICE_CALL);
1557        setIntent(intent);
1558    }
1559
1560    private static boolean emptyReference(final WeakReference<?> weakReference) {
1561        return weakReference == null || weakReference.get() == null;
1562    }
1563
1564    private enum Event {
1565        ON_BACKEND_CONNECTED,
1566        ON_NEW_INTENT
1567    }
1568}