RtpSessionActivity.java

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