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