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