RtpSessionActivity.java

   1package eu.siacs.conversations.ui;
   2
   3import android.Manifest;
   4import android.annotation.SuppressLint;
   5import android.app.PictureInPictureParams;
   6import android.content.ActivityNotFoundException;
   7import android.content.Context;
   8import android.content.Intent;
   9import android.content.pm.PackageManager;
  10import android.os.Build;
  11import android.os.Bundle;
  12import android.os.Handler;
  13import android.os.PowerManager;
  14import android.os.SystemClock;
  15import android.util.Log;
  16import android.util.Rational;
  17import android.view.KeyEvent;
  18import android.view.Menu;
  19import android.view.MenuItem;
  20import android.view.View;
  21import android.view.WindowManager;
  22import android.widget.Toast;
  23
  24import androidx.annotation.NonNull;
  25import androidx.annotation.RequiresApi;
  26import androidx.annotation.StringRes;
  27import androidx.databinding.DataBindingUtil;
  28
  29import com.google.common.base.Optional;
  30import com.google.common.base.Preconditions;
  31import com.google.common.base.Throwables;
  32import com.google.common.collect.ImmutableList;
  33import com.google.common.collect.ImmutableSet;
  34import com.google.common.util.concurrent.FutureCallback;
  35import com.google.common.util.concurrent.Futures;
  36
  37import org.checkerframework.checker.nullness.compatqual.NullableDecl;
  38import org.jetbrains.annotations.NotNull;
  39import org.webrtc.RendererCommon;
  40import org.webrtc.SurfaceViewRenderer;
  41import org.webrtc.VideoTrack;
  42
  43import java.lang.ref.WeakReference;
  44import java.util.Arrays;
  45import java.util.Collections;
  46import java.util.List;
  47import java.util.Set;
  48
  49import eu.siacs.conversations.Config;
  50import eu.siacs.conversations.R;
  51import eu.siacs.conversations.databinding.ActivityRtpSessionBinding;
  52import eu.siacs.conversations.entities.Account;
  53import eu.siacs.conversations.entities.Contact;
  54import eu.siacs.conversations.entities.Conversation;
  55import eu.siacs.conversations.services.AppRTCAudioManager;
  56import eu.siacs.conversations.services.XmppConnectionService;
  57import eu.siacs.conversations.ui.util.AvatarWorkerTask;
  58import eu.siacs.conversations.ui.util.MainThreadExecutor;
  59import eu.siacs.conversations.utils.PermissionUtils;
  60import eu.siacs.conversations.utils.TimeFrameUtils;
  61import eu.siacs.conversations.xml.Namespace;
  62import eu.siacs.conversations.xmpp.Jid;
  63import eu.siacs.conversations.xmpp.jingle.AbstractJingleConnection;
  64import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
  65import eu.siacs.conversations.xmpp.jingle.JingleRtpConnection;
  66import eu.siacs.conversations.xmpp.jingle.Media;
  67import eu.siacs.conversations.xmpp.jingle.RtpEndUserState;
  68
  69import static eu.siacs.conversations.utils.PermissionUtils.getFirstDenied;
  70import static java.util.Arrays.asList;
  71
  72public class RtpSessionActivity extends XmppActivity implements XmppConnectionService.OnJingleRtpConnectionUpdate {
  73
  74    public static final String EXTRA_WITH = "with";
  75    public static final String EXTRA_SESSION_ID = "session_id";
  76    public static final String EXTRA_LAST_REPORTED_STATE = "last_reported_state";
  77    public static final String EXTRA_LAST_ACTION = "last_action";
  78    public static final String ACTION_ACCEPT_CALL = "action_accept_call";
  79    public static final String ACTION_MAKE_VOICE_CALL = "action_make_voice_call";
  80    public static final String ACTION_MAKE_VIDEO_CALL = "action_make_video_call";
  81
  82    private static final int CALL_DURATION_UPDATE_INTERVAL = 333;
  83
  84    private static final List<RtpEndUserState> END_CARD = Arrays.asList(
  85            RtpEndUserState.APPLICATION_ERROR,
  86            RtpEndUserState.SECURITY_ERROR,
  87            RtpEndUserState.DECLINED_OR_BUSY,
  88            RtpEndUserState.CONNECTIVITY_ERROR,
  89            RtpEndUserState.CONNECTIVITY_LOST_ERROR,
  90            RtpEndUserState.RETRACTED
  91    );
  92    private static final List<RtpEndUserState> STATES_SHOWING_HELP_BUTTON = Arrays.asList(
  93            RtpEndUserState.APPLICATION_ERROR,
  94            RtpEndUserState.CONNECTIVITY_ERROR,
  95            RtpEndUserState.SECURITY_ERROR
  96    );
  97    private static final List<RtpEndUserState> STATES_SHOWING_SWITCH_TO_CHAT = Arrays.asList(
  98            RtpEndUserState.CONNECTING,
  99            RtpEndUserState.CONNECTED
 100    );
 101    private static final String PROXIMITY_WAKE_LOCK_TAG = "conversations:in-rtp-session";
 102    private static final int REQUEST_ACCEPT_CALL = 0x1111;
 103    private WeakReference<JingleRtpConnection> rtpConnectionReference;
 104
 105    private ActivityRtpSessionBinding binding;
 106    private PowerManager.WakeLock mProximityWakeLock;
 107
 108    private final Handler mHandler = new Handler();
 109    private final Runnable mTickExecutor = new Runnable() {
 110        @Override
 111        public void run() {
 112            updateCallDuration();
 113            mHandler.postDelayed(mTickExecutor, CALL_DURATION_UPDATE_INTERVAL);
 114        }
 115    };
 116
 117    private static Set<Media> actionToMedia(final String action) {
 118        if (ACTION_MAKE_VIDEO_CALL.equals(action)) {
 119            return ImmutableSet.of(Media.AUDIO, Media.VIDEO);
 120        } else {
 121            return ImmutableSet.of(Media.AUDIO);
 122        }
 123    }
 124
 125    private static void addSink(final VideoTrack videoTrack, final SurfaceViewRenderer surfaceViewRenderer) {
 126        try {
 127            videoTrack.addSink(surfaceViewRenderer);
 128        } catch (final IllegalStateException e) {
 129            Log.e(Config.LOGTAG, "possible race condition on trying to display video track. ignoring", e);
 130        }
 131    }
 132
 133    @Override
 134    public void onCreate(Bundle savedInstanceState) {
 135        super.onCreate(savedInstanceState);
 136        getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
 137                | WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD
 138                | WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED
 139                | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);
 140        this.binding = DataBindingUtil.setContentView(this, R.layout.activity_rtp_session);
 141        setSupportActionBar(binding.toolbar);
 142
 143        //TODO: remove this - for testing dialpad input
 144        //((DialpadView)findViewById(R.id.action_dialpad)).
 145
 146        findViewById(R.id.dialpad_1_holder).setOnClickListener(view -> dialpadPressed(view));
 147        findViewById(R.id.dialpad_2_holder).setOnClickListener(view -> dialpadPressed(view));
 148        findViewById(R.id.dialpad_3_holder).setOnClickListener(view -> dialpadPressed(view));
 149        findViewById(R.id.dialpad_4_holder).setOnClickListener(view -> dialpadPressed(view));
 150        findViewById(R.id.dialpad_5_holder).setOnClickListener(view -> dialpadPressed(view));
 151        findViewById(R.id.dialpad_6_holder).setOnClickListener(view -> dialpadPressed(view));
 152        findViewById(R.id.dialpad_7_holder).setOnClickListener(view -> dialpadPressed(view));
 153        findViewById(R.id.dialpad_8_holder).setOnClickListener(view -> dialpadPressed(view));
 154        findViewById(R.id.dialpad_9_holder).setOnClickListener(view -> dialpadPressed(view));
 155        findViewById(R.id.dialpad_0_holder).setOnClickListener(view -> dialpadPressed(view));
 156        findViewById(R.id.dialpad_asterisk_holder).setOnClickListener(view -> dialpadPressed(view));
 157        findViewById(R.id.dialpad_pound_holder).setOnClickListener(view -> dialpadPressed(view));
 158
 159        if (savedInstanceState != null) {
 160            int dialpad_visibility = savedInstanceState.getInt("dialpad_visibility");
 161            System.out.println("dialpad_visibility onCreate = " + dialpad_visibility);
 162            findViewById(R.id.dialpad).setVisibility(dialpad_visibility);
 163        }
 164    }
 165
 166
 167
 168    private void dialpadPressed(View dialpadKeyHolderView) {
 169        JingleRtpConnection rtpConnection = requireRtpConnection();
 170        rtpConnection.applyDtmfTone(dialpadKeyHolderView.getTag().toString());
 171    }
 172
 173    @Override
 174    public boolean onCreateOptionsMenu(final Menu menu) {
 175        getMenuInflater().inflate(R.menu.activity_rtp_session, menu);
 176        final MenuItem help = menu.findItem(R.id.action_help);
 177        final MenuItem gotoChat = menu.findItem(R.id.action_goto_chat);
 178        final MenuItem dialpad = menu.findItem(R.id.action_dialpad);
 179        help.setVisible(isHelpButtonVisible());
 180        gotoChat.setVisible(isSwitchToConversationVisible());
 181        dialpad.setVisible(isAudioOnlyConversation());
 182        return super.onCreateOptionsMenu(menu);
 183    }
 184
 185    @Override
 186    public boolean onKeyDown(final int keyCode, final KeyEvent event) {
 187        if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN) {
 188            if (xmppConnectionService != null) {
 189                if (xmppConnectionService.getNotificationService().stopSoundAndVibration()) {
 190                    return true;
 191                }
 192            }
 193        }
 194        return super.onKeyDown(keyCode, event);
 195    }
 196
 197    private boolean isHelpButtonVisible() {
 198        try {
 199            return STATES_SHOWING_HELP_BUTTON.contains(requireRtpConnection().getEndUserState());
 200        } catch (IllegalStateException e) {
 201            final Intent intent = getIntent();
 202            final String state = intent != null ? intent.getStringExtra(EXTRA_LAST_REPORTED_STATE) : null;
 203            if (state != null) {
 204                return STATES_SHOWING_HELP_BUTTON.contains(RtpEndUserState.valueOf(state));
 205            } else {
 206                return false;
 207            }
 208        }
 209    }
 210
 211    private boolean isSwitchToConversationVisible() {
 212        final JingleRtpConnection connection = this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
 213        return connection != null && STATES_SHOWING_SWITCH_TO_CHAT.contains(connection.getEndUserState());
 214    }
 215
 216    private boolean isAudioOnlyConversation() {
 217        final JingleRtpConnection connection =
 218                this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
 219        return connection != null &&
 220                connection.getEndUserState() == RtpEndUserState.CONNECTED &&
 221                !connection.isVideoEnabled();
 222    }
 223
 224    private void switchToConversation() {
 225        final Contact contact = getWith();
 226        final Conversation conversation = xmppConnectionService.findOrCreateConversation(contact.getAccount(), contact.getJid(), false, true);
 227        switchToConversation(conversation);
 228    }
 229
 230    private void toggleDialpadVisibility() {
 231        if (binding.dialpad.getVisibility() == View.VISIBLE) {
 232            binding.dialpad.setVisibility(View.GONE);
 233        }
 234        else {
 235            binding.dialpad.setVisibility(View.VISIBLE);
 236        }
 237    }
 238
 239    public boolean onOptionsItemSelected(final MenuItem item) {
 240        switch (item.getItemId()) {
 241            case R.id.action_help:
 242                launchHelpInBrowser();
 243                break;
 244            case R.id.action_goto_chat:
 245                switchToConversation();
 246                break;
 247            case R.id.action_dialpad:
 248                toggleDialpadVisibility();
 249                break;
 250        }
 251        return super.onOptionsItemSelected(item);
 252    }
 253
 254    private void launchHelpInBrowser() {
 255        final Intent intent = new Intent(Intent.ACTION_VIEW, Config.HELP);
 256        try {
 257            startActivity(intent);
 258        } catch (final ActivityNotFoundException e) {
 259            Toast.makeText(this, R.string.no_application_found_to_open_link, Toast.LENGTH_LONG).show();
 260        }
 261    }
 262
 263    private void endCall(View view) {
 264        endCall();
 265    }
 266
 267    private void endCall() {
 268        if (this.rtpConnectionReference == null) {
 269            retractSessionProposal();
 270            finish();
 271        } else {
 272            requireRtpConnection().endCall();
 273        }
 274    }
 275
 276    private void retractSessionProposal() {
 277        final Intent intent = getIntent();
 278        final String action = intent.getAction();
 279        final Account account = extractAccount(intent);
 280        final Jid with = Jid.ofEscaped(intent.getStringExtra(EXTRA_WITH));
 281        final String state = intent.getStringExtra(EXTRA_LAST_REPORTED_STATE);
 282        if (!Intent.ACTION_VIEW.equals(action) || state == null || !END_CARD.contains(RtpEndUserState.valueOf(state))) {
 283            resetIntent(account, with, RtpEndUserState.RETRACTED, actionToMedia(intent.getAction()));
 284        }
 285        xmppConnectionService.getJingleConnectionManager().retractSessionProposal(account, with.asBareJid());
 286    }
 287
 288    private void rejectCall(View view) {
 289        requireRtpConnection().rejectCall();
 290        finish();
 291    }
 292
 293    private void acceptCall(View view) {
 294        requestPermissionsAndAcceptCall();
 295    }
 296
 297    private void requestPermissionsAndAcceptCall() {
 298        final List<String> permissions;
 299        if (getMedia().contains(Media.VIDEO)) {
 300            permissions = ImmutableList.of(Manifest.permission.CAMERA, Manifest.permission.RECORD_AUDIO);
 301        } else {
 302            permissions = ImmutableList.of(Manifest.permission.RECORD_AUDIO);
 303        }
 304        if (PermissionUtils.hasPermission(this, permissions, REQUEST_ACCEPT_CALL)) {
 305            putScreenInCallMode();
 306            checkRecorderAndAcceptCall();
 307        }
 308    }
 309
 310    private void checkRecorderAndAcceptCall() {
 311        checkMicrophoneAvailability();
 312        try {
 313            requireRtpConnection().acceptCall();
 314        } catch (final IllegalStateException e) {
 315            Toast.makeText(this, e.getMessage(), Toast.LENGTH_SHORT).show();
 316        }
 317    }
 318
 319    private void checkMicrophoneAvailability() {
 320        new Thread(() -> {
 321            final long start = SystemClock.elapsedRealtime();
 322            final boolean isMicrophoneAvailable = AppRTCAudioManager.isMicrophoneAvailable();
 323            final long stop = SystemClock.elapsedRealtime();
 324            Log.d(Config.LOGTAG, "checking microphone availability took " + (stop - start) + "ms");
 325            if (isMicrophoneAvailable) {
 326                return;
 327            }
 328            runOnUiThread(() -> Toast.makeText(this, R.string.microphone_unavailable, Toast.LENGTH_LONG).show());
 329        }
 330        ).start();
 331    }
 332
 333    private void putScreenInCallMode() {
 334        putScreenInCallMode(requireRtpConnection().getMedia());
 335    }
 336
 337    private void putScreenInCallMode(final Set<Media> media) {
 338        getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
 339        if (!media.contains(Media.VIDEO)) {
 340            final JingleRtpConnection rtpConnection = rtpConnectionReference != null ? rtpConnectionReference.get() : null;
 341            final AppRTCAudioManager audioManager = rtpConnection == null ? null : rtpConnection.getAudioManager();
 342            if (audioManager == null || audioManager.getSelectedAudioDevice() == AppRTCAudioManager.AudioDevice.EARPIECE) {
 343                acquireProximityWakeLock();
 344            }
 345        }
 346    }
 347
 348    @SuppressLint("WakelockTimeout")
 349    private void acquireProximityWakeLock() {
 350        final PowerManager powerManager = (PowerManager) getSystemService(Context.POWER_SERVICE);
 351        if (powerManager == null) {
 352            Log.e(Config.LOGTAG, "power manager not available");
 353            return;
 354        }
 355        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
 356            if (this.mProximityWakeLock == null) {
 357                this.mProximityWakeLock = powerManager.newWakeLock(PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK, PROXIMITY_WAKE_LOCK_TAG);
 358            }
 359            if (!this.mProximityWakeLock.isHeld()) {
 360                Log.d(Config.LOGTAG, "acquiring proximity wake lock");
 361                this.mProximityWakeLock.acquire();
 362            }
 363        }
 364    }
 365
 366    private void releaseProximityWakeLock() {
 367        if (this.mProximityWakeLock != null && mProximityWakeLock.isHeld()) {
 368            Log.d(Config.LOGTAG, "releasing proximity wake lock");
 369            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
 370                this.mProximityWakeLock.release(PowerManager.RELEASE_FLAG_WAIT_FOR_NO_PROXIMITY);
 371            } else {
 372                this.mProximityWakeLock.release();
 373            }
 374            this.mProximityWakeLock = null;
 375        }
 376    }
 377
 378    private void putProximityWakeLockInProperState(final AppRTCAudioManager.AudioDevice audioDevice) {
 379        if (audioDevice == AppRTCAudioManager.AudioDevice.EARPIECE) {
 380            acquireProximityWakeLock();
 381        } else {
 382            releaseProximityWakeLock();
 383        }
 384    }
 385
 386    @Override
 387    protected void refreshUiReal() {
 388
 389    }
 390
 391    @Override
 392    public void onNewIntent(final Intent intent) {
 393        Log.d(Config.LOGTAG, this.getClass().getName() + ".onNewIntent()");
 394        super.onNewIntent(intent);
 395        setIntent(intent);
 396        if (xmppConnectionService == null) {
 397            Log.d(Config.LOGTAG, "RtpSessionActivity: background service wasn't bound in onNewIntent()");
 398            return;
 399        }
 400        final Account account = extractAccount(intent);
 401        final String action = intent.getAction();
 402        final Jid with = Jid.ofEscaped(intent.getStringExtra(EXTRA_WITH));
 403        final String sessionId = intent.getStringExtra(EXTRA_SESSION_ID);
 404        if (sessionId != null) {
 405            Log.d(Config.LOGTAG, "reinitializing from onNewIntent()");
 406            if (initializeActivityWithRunningRtpSession(account, with, sessionId)) {
 407                return;
 408            }
 409            if (ACTION_ACCEPT_CALL.equals(intent.getAction())) {
 410                Log.d(Config.LOGTAG, "accepting call from onNewIntent()");
 411                requestPermissionsAndAcceptCall();
 412                resetIntent(intent.getExtras());
 413            }
 414        } else if (asList(ACTION_MAKE_VIDEO_CALL, ACTION_MAKE_VOICE_CALL).contains(action)) {
 415            proposeJingleRtpSession(account, with, actionToMedia(action));
 416            binding.with.setText(account.getRoster().getContact(with).getDisplayName());
 417        } else {
 418            throw new IllegalStateException("received onNewIntent without sessionId");
 419        }
 420    }
 421
 422    @Override
 423    void onBackendConnected() {
 424        final Intent intent = getIntent();
 425        final String action = intent.getAction();
 426        final Account account = extractAccount(intent);
 427        final Jid with = Jid.ofEscaped(intent.getStringExtra(EXTRA_WITH));
 428        final String sessionId = intent.getStringExtra(EXTRA_SESSION_ID);
 429        if (sessionId != null) {
 430            if (initializeActivityWithRunningRtpSession(account, with, sessionId)) {
 431                return;
 432            }
 433            if (ACTION_ACCEPT_CALL.equals(intent.getAction())) {
 434                Log.d(Config.LOGTAG, "intent action was accept");
 435                requestPermissionsAndAcceptCall();
 436                resetIntent(intent.getExtras());
 437            }
 438        } else if (asList(ACTION_MAKE_VIDEO_CALL, ACTION_MAKE_VOICE_CALL).contains(action)) {
 439            proposeJingleRtpSession(account, with, actionToMedia(action));
 440            binding.with.setText(account.getRoster().getContact(with).getDisplayName());
 441        } else if (Intent.ACTION_VIEW.equals(action)) {
 442            final String extraLastState = intent.getStringExtra(EXTRA_LAST_REPORTED_STATE);
 443            final RtpEndUserState state = extraLastState == null ? null : RtpEndUserState.valueOf(extraLastState);
 444            if (state != null) {
 445                Log.d(Config.LOGTAG, "restored last state from intent extra");
 446                updateButtonConfiguration(state);
 447                updateVerifiedShield(false);
 448                updateStateDisplay(state);
 449                updateProfilePicture(state);
 450                invalidateOptionsMenu();
 451            }
 452            binding.with.setText(account.getRoster().getContact(with).getDisplayName());
 453            if (xmppConnectionService.getJingleConnectionManager().fireJingleRtpConnectionStateUpdates()) {
 454                return;
 455            }
 456            if (END_CARD.contains(state) || xmppConnectionService.getJingleConnectionManager().hasMatchingProposal(account, with)) {
 457                return;
 458            }
 459            Log.d(Config.LOGTAG, "restored state (" + state + ") was not an end card. finishing");
 460            finish();
 461        }
 462    }
 463
 464    private void proposeJingleRtpSession(final Account account, final Jid with, final Set<Media> media) {
 465        checkMicrophoneAvailability();
 466        if (with.isBareJid()) {
 467            xmppConnectionService.getJingleConnectionManager().proposeJingleRtpSession(account, with, media);
 468        } else {
 469            final String sessionId = xmppConnectionService.getJingleConnectionManager().initializeRtpSession(account, with, media);
 470            initializeActivityWithRunningRtpSession(account, with, sessionId);
 471            resetIntent(account, with, sessionId);
 472        }
 473        putScreenInCallMode(media);
 474    }
 475
 476    @Override
 477    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
 478        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
 479        if (PermissionUtils.allGranted(grantResults)) {
 480            if (requestCode == REQUEST_ACCEPT_CALL) {
 481                checkRecorderAndAcceptCall();
 482            }
 483        } else {
 484            @StringRes int res;
 485            final String firstDenied = getFirstDenied(grantResults, permissions);
 486            if (Manifest.permission.RECORD_AUDIO.equals(firstDenied)) {
 487                res = R.string.no_microphone_permission;
 488            } else if (Manifest.permission.CAMERA.equals(firstDenied)) {
 489                res = R.string.no_camera_permission;
 490            } else {
 491                throw new IllegalStateException("Invalid permission result request");
 492            }
 493            Toast.makeText(this, getString(res, getString(R.string.app_name)), Toast.LENGTH_SHORT).show();
 494        }
 495    }
 496
 497    @Override
 498    public void onStart() {
 499        super.onStart();
 500        mHandler.postDelayed(mTickExecutor, CALL_DURATION_UPDATE_INTERVAL);
 501    }
 502
 503    @Override
 504    public void onStop() {
 505        mHandler.removeCallbacks(mTickExecutor);
 506        binding.remoteVideo.release();
 507        binding.localVideo.release();
 508        final WeakReference<JingleRtpConnection> weakReference = this.rtpConnectionReference;
 509        final JingleRtpConnection jingleRtpConnection = weakReference == null ? null : weakReference.get();
 510        if (jingleRtpConnection != null) {
 511            releaseVideoTracks(jingleRtpConnection);
 512        }
 513        releaseProximityWakeLock();
 514        super.onStop();
 515    }
 516
 517    private void releaseVideoTracks(final JingleRtpConnection jingleRtpConnection) {
 518        final Optional<VideoTrack> remoteVideo = jingleRtpConnection.getRemoteVideoTrack();
 519        if (remoteVideo.isPresent()) {
 520            remoteVideo.get().removeSink(binding.remoteVideo);
 521        }
 522        final Optional<VideoTrack> localVideo = jingleRtpConnection.getLocalVideoTrack();
 523        if (localVideo.isPresent()) {
 524            localVideo.get().removeSink(binding.localVideo);
 525        }
 526    }
 527
 528    @Override
 529    public void onBackPressed() {
 530        if (isConnected()) {
 531            if (switchToPictureInPicture()) {
 532                return;
 533            }
 534        } else {
 535            endCall();
 536        }
 537        super.onBackPressed();
 538    }
 539
 540    @Override
 541    public void onUserLeaveHint() {
 542        super.onUserLeaveHint();
 543        if (switchToPictureInPicture()) {
 544            return;
 545        }
 546        //TODO apparently this method is not getting called on Android 10 when using the task switcher
 547        if (emptyReference(rtpConnectionReference) && xmppConnectionService != null) {
 548            retractSessionProposal();
 549        }
 550    }
 551
 552    private boolean isConnected() {
 553        final JingleRtpConnection connection = this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
 554        return connection != null && connection.getEndUserState() == RtpEndUserState.CONNECTED;
 555    }
 556
 557    private boolean switchToPictureInPicture() {
 558        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O && deviceSupportsPictureInPicture()) {
 559            if (shouldBePictureInPicture()) {
 560                startPictureInPicture();
 561                return true;
 562            }
 563        }
 564        return false;
 565    }
 566
 567    @RequiresApi(api = Build.VERSION_CODES.O)
 568    private void startPictureInPicture() {
 569        try {
 570            enterPictureInPictureMode(
 571                    new PictureInPictureParams.Builder()
 572                            .setAspectRatio(new Rational(10, 16))
 573                            .build()
 574            );
 575        } catch (final IllegalStateException e) {
 576            //this sometimes happens on Samsung phones (possibly when Knox is enabled)
 577            Log.w(Config.LOGTAG, "unable to enter picture in picture mode", e);
 578        }
 579    }
 580
 581    private boolean deviceSupportsPictureInPicture() {
 582        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 583            return getPackageManager().hasSystemFeature(PackageManager.FEATURE_PICTURE_IN_PICTURE);
 584        } else {
 585            return false;
 586        }
 587    }
 588
 589    private boolean shouldBePictureInPicture() {
 590        try {
 591            final JingleRtpConnection rtpConnection = requireRtpConnection();
 592            return rtpConnection.getMedia().contains(Media.VIDEO) && Arrays.asList(
 593                    RtpEndUserState.ACCEPTING_CALL,
 594                    RtpEndUserState.CONNECTING,
 595                    RtpEndUserState.CONNECTED
 596            ).contains(rtpConnection.getEndUserState());
 597        } catch (final IllegalStateException e) {
 598            return false;
 599        }
 600    }
 601
 602    private boolean initializeActivityWithRunningRtpSession(final Account account, Jid with, String sessionId) {
 603        final WeakReference<JingleRtpConnection> reference = xmppConnectionService.getJingleConnectionManager()
 604                .findJingleRtpConnection(account, with, sessionId);
 605        if (reference == null || reference.get() == null) {
 606            final JingleConnectionManager.TerminatedRtpSession terminatedRtpSession = xmppConnectionService
 607                    .getJingleConnectionManager().getTerminalSessionState(with, sessionId);
 608            if (terminatedRtpSession == null) {
 609                throw new IllegalStateException("failed to initialize activity with running rtp session. session not found");
 610            }
 611            initializeWithTerminatedSessionState(account, with, terminatedRtpSession);
 612            return true;
 613        }
 614        this.rtpConnectionReference = reference;
 615        final RtpEndUserState currentState = requireRtpConnection().getEndUserState();
 616        final boolean verified = requireRtpConnection().isVerified();
 617        if (currentState == RtpEndUserState.ENDED) {
 618            reference.get().throwStateTransitionException();
 619            finish();
 620            return true;
 621        }
 622        final Set<Media> media = getMedia();
 623        if (currentState == RtpEndUserState.INCOMING_CALL) {
 624            getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
 625        }
 626        if (JingleRtpConnection.STATES_SHOWING_ONGOING_CALL.contains(requireRtpConnection().getState())) {
 627            putScreenInCallMode();
 628        }
 629        binding.with.setText(getWith().getDisplayName());
 630        updateVideoViews(currentState);
 631        updateStateDisplay(currentState, media);
 632        updateVerifiedShield(verified && STATES_SHOWING_SWITCH_TO_CHAT.contains(currentState));
 633        updateButtonConfiguration(currentState, media);
 634        updateProfilePicture(currentState);
 635        invalidateOptionsMenu();
 636        return false;
 637    }
 638
 639    private void initializeWithTerminatedSessionState(final Account account, final Jid with, final JingleConnectionManager.TerminatedRtpSession terminatedRtpSession) {
 640        Log.d(Config.LOGTAG, "initializeWithTerminatedSessionState()");
 641        if (terminatedRtpSession.state == RtpEndUserState.ENDED) {
 642            finish();
 643            return;
 644        }
 645        RtpEndUserState state = terminatedRtpSession.state;
 646        resetIntent(account, with, terminatedRtpSession.state, terminatedRtpSession.media);
 647        updateButtonConfiguration(state);
 648        updateStateDisplay(state);
 649        updateProfilePicture(state);
 650        updateCallDuration();
 651        updateVerifiedShield(false);
 652        invalidateOptionsMenu();
 653        binding.with.setText(account.getRoster().getContact(with).getDisplayName());
 654    }
 655
 656    private void reInitializeActivityWithRunningRtpSession(final Account account, Jid with, String sessionId) {
 657        runOnUiThread(() -> initializeActivityWithRunningRtpSession(account, with, sessionId));
 658        resetIntent(account, with, sessionId);
 659    }
 660
 661    private void resetIntent(final Account account, final Jid with, final String sessionId) {
 662        final Intent intent = new Intent(Intent.ACTION_VIEW);
 663        intent.putExtra(EXTRA_ACCOUNT, account.getJid().toEscapedString());
 664        intent.putExtra(EXTRA_WITH, with.toEscapedString());
 665        intent.putExtra(EXTRA_SESSION_ID, sessionId);
 666        setIntent(intent);
 667    }
 668
 669    private void ensureSurfaceViewRendererIsSetup(final SurfaceViewRenderer surfaceViewRenderer) {
 670        surfaceViewRenderer.setVisibility(View.VISIBLE);
 671        try {
 672            surfaceViewRenderer.init(requireRtpConnection().getEglBaseContext(), null);
 673        } catch (IllegalStateException e) {
 674            Log.d(Config.LOGTAG, "SurfaceViewRenderer was already initialized");
 675        }
 676        surfaceViewRenderer.setEnableHardwareScaler(true);
 677    }
 678
 679    private void updateStateDisplay(final RtpEndUserState state) {
 680        updateStateDisplay(state, Collections.emptySet());
 681    }
 682
 683    private void updateStateDisplay(final RtpEndUserState state, final Set<Media> media) {
 684        switch (state) {
 685            case INCOMING_CALL:
 686                Preconditions.checkArgument(media.size() > 0, "Media must not be empty");
 687                if (media.contains(Media.VIDEO)) {
 688                    setTitle(R.string.rtp_state_incoming_video_call);
 689                } else {
 690                    setTitle(R.string.rtp_state_incoming_call);
 691                }
 692                break;
 693            case CONNECTING:
 694                setTitle(R.string.rtp_state_connecting);
 695                break;
 696            case CONNECTED:
 697                setTitle(R.string.rtp_state_connected);
 698                break;
 699            case ACCEPTING_CALL:
 700                setTitle(R.string.rtp_state_accepting_call);
 701                break;
 702            case ENDING_CALL:
 703                setTitle(R.string.rtp_state_ending_call);
 704                break;
 705            case FINDING_DEVICE:
 706                setTitle(R.string.rtp_state_finding_device);
 707                break;
 708            case RINGING:
 709                setTitle(R.string.rtp_state_ringing);
 710                break;
 711            case DECLINED_OR_BUSY:
 712                setTitle(R.string.rtp_state_declined_or_busy);
 713                break;
 714            case CONNECTIVITY_ERROR:
 715                setTitle(R.string.rtp_state_connectivity_error);
 716                break;
 717            case CONNECTIVITY_LOST_ERROR:
 718                setTitle(R.string.rtp_state_connectivity_lost_error);
 719                break;
 720            case RETRACTED:
 721                setTitle(R.string.rtp_state_retracted);
 722                break;
 723            case APPLICATION_ERROR:
 724                setTitle(R.string.rtp_state_application_failure);
 725                break;
 726            case SECURITY_ERROR:
 727                setTitle(R.string.rtp_state_security_error);
 728                break;
 729            case ENDED:
 730                throw new IllegalStateException("Activity should have called finishAndReleaseWakeLock();");
 731            default:
 732                throw new IllegalStateException(String.format("State %s has not been handled in UI", state));
 733        }
 734    }
 735
 736    private void updateVerifiedShield(final boolean verified) {
 737        if (isPictureInPicture()) {
 738            this.binding.verified.setVisibility(View.GONE);
 739            return;
 740        }
 741        this.binding.verified.setVisibility(verified ? View.VISIBLE : View.GONE);
 742    }
 743
 744    private void updateProfilePicture(final RtpEndUserState state) {
 745        updateProfilePicture(state, null);
 746    }
 747
 748    private void updateProfilePicture(final RtpEndUserState state, final Contact contact) {
 749        if (state == RtpEndUserState.INCOMING_CALL || state == RtpEndUserState.ACCEPTING_CALL) {
 750            final boolean show = getResources().getBoolean(R.bool.show_avatar_incoming_call);
 751            if (show) {
 752                binding.contactPhoto.setVisibility(View.VISIBLE);
 753                if (contact == null) {
 754                    AvatarWorkerTask.loadAvatar(getWith(), binding.contactPhoto, R.dimen.publish_avatar_size);
 755                } else {
 756                    AvatarWorkerTask.loadAvatar(contact, binding.contactPhoto, R.dimen.publish_avatar_size);
 757                }
 758            } else {
 759                binding.contactPhoto.setVisibility(View.GONE);
 760            }
 761        } else {
 762            binding.contactPhoto.setVisibility(View.GONE);
 763        }
 764    }
 765
 766    private Set<Media> getMedia() {
 767        return requireRtpConnection().getMedia();
 768    }
 769
 770    private void updateButtonConfiguration(final RtpEndUserState state) {
 771        updateButtonConfiguration(state, Collections.emptySet());
 772    }
 773
 774    @SuppressLint("RestrictedApi")
 775    private void updateButtonConfiguration(final RtpEndUserState state, final Set<Media> media) {
 776        if (state == RtpEndUserState.ENDING_CALL || isPictureInPicture()) {
 777            this.binding.rejectCall.setVisibility(View.INVISIBLE);
 778            this.binding.endCall.setVisibility(View.INVISIBLE);
 779            this.binding.acceptCall.setVisibility(View.INVISIBLE);
 780        } else if (state == RtpEndUserState.INCOMING_CALL) {
 781            this.binding.rejectCall.setContentDescription(getString(R.string.dismiss_call));
 782            this.binding.rejectCall.setOnClickListener(this::rejectCall);
 783            this.binding.rejectCall.setImageResource(R.drawable.ic_call_end_white_48dp);
 784            this.binding.rejectCall.setVisibility(View.VISIBLE);
 785            this.binding.endCall.setVisibility(View.INVISIBLE);
 786            this.binding.acceptCall.setContentDescription(getString(R.string.answer_call));
 787            this.binding.acceptCall.setOnClickListener(this::acceptCall);
 788            this.binding.acceptCall.setImageResource(R.drawable.ic_call_white_48dp);
 789            this.binding.acceptCall.setVisibility(View.VISIBLE);
 790        } else if (state == RtpEndUserState.DECLINED_OR_BUSY) {
 791            this.binding.rejectCall.setContentDescription(getString(R.string.exit));
 792            this.binding.rejectCall.setOnClickListener(this::exit);
 793            this.binding.rejectCall.setImageResource(R.drawable.ic_clear_white_48dp);
 794            this.binding.rejectCall.setVisibility(View.VISIBLE);
 795            this.binding.endCall.setVisibility(View.INVISIBLE);
 796            this.binding.acceptCall.setContentDescription(getString(R.string.record_voice_mail));
 797            this.binding.acceptCall.setOnClickListener(this::recordVoiceMail);
 798            this.binding.acceptCall.setImageResource(R.drawable.ic_voicemail_white_24dp);
 799            this.binding.acceptCall.setVisibility(View.VISIBLE);
 800        } else if (asList(
 801                RtpEndUserState.CONNECTIVITY_ERROR,
 802                RtpEndUserState.CONNECTIVITY_LOST_ERROR,
 803                RtpEndUserState.APPLICATION_ERROR,
 804                RtpEndUserState.RETRACTED,
 805                RtpEndUserState.SECURITY_ERROR
 806        ).contains(state)) {
 807            this.binding.rejectCall.setContentDescription(getString(R.string.exit));
 808            this.binding.rejectCall.setOnClickListener(this::exit);
 809            this.binding.rejectCall.setImageResource(R.drawable.ic_clear_white_48dp);
 810            this.binding.rejectCall.setVisibility(View.VISIBLE);
 811            this.binding.endCall.setVisibility(View.INVISIBLE);
 812            this.binding.acceptCall.setContentDescription(getString(R.string.try_again));
 813            this.binding.acceptCall.setOnClickListener(this::retry);
 814            this.binding.acceptCall.setImageResource(R.drawable.ic_replay_white_48dp);
 815            this.binding.acceptCall.setVisibility(View.VISIBLE);
 816        } else {
 817            this.binding.rejectCall.setVisibility(View.INVISIBLE);
 818            this.binding.endCall.setContentDescription(getString(R.string.hang_up));
 819            this.binding.endCall.setOnClickListener(this::endCall);
 820            this.binding.endCall.setImageResource(R.drawable.ic_call_end_white_48dp);
 821            this.binding.endCall.setVisibility(View.VISIBLE);
 822            this.binding.acceptCall.setVisibility(View.INVISIBLE);
 823        }
 824        updateInCallButtonConfiguration(state, media);
 825    }
 826
 827    private boolean isPictureInPicture() {
 828        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
 829            return isInPictureInPictureMode();
 830        } else {
 831            return false;
 832        }
 833    }
 834
 835    private void updateInCallButtonConfiguration() {
 836        updateInCallButtonConfiguration(requireRtpConnection().getEndUserState(), requireRtpConnection().getMedia());
 837    }
 838
 839    @SuppressLint("RestrictedApi")
 840    private void updateInCallButtonConfiguration(final RtpEndUserState state, final Set<Media> media) {
 841        if (state == RtpEndUserState.CONNECTED && !isPictureInPicture()) {
 842            Preconditions.checkArgument(media.size() > 0, "Media must not be empty");
 843            if (media.contains(Media.VIDEO)) {
 844                final JingleRtpConnection rtpConnection = requireRtpConnection();
 845                updateInCallButtonConfigurationVideo(rtpConnection.isVideoEnabled(), rtpConnection.isCameraSwitchable());
 846            } else {
 847                final AppRTCAudioManager audioManager = requireRtpConnection().getAudioManager();
 848                updateInCallButtonConfigurationSpeaker(
 849                        audioManager.getSelectedAudioDevice(),
 850                        audioManager.getAudioDevices().size()
 851                );
 852                this.binding.inCallActionFarRight.setVisibility(View.GONE);
 853            }
 854            if (media.contains(Media.AUDIO)) {
 855                updateInCallButtonConfigurationMicrophone(requireRtpConnection().isMicrophoneEnabled());
 856            } else {
 857                this.binding.inCallActionLeft.setVisibility(View.GONE);
 858            }
 859        } else {
 860            this.binding.inCallActionLeft.setVisibility(View.GONE);
 861            this.binding.inCallActionRight.setVisibility(View.GONE);
 862            this.binding.inCallActionFarRight.setVisibility(View.GONE);
 863        }
 864    }
 865
 866    @SuppressLint("RestrictedApi")
 867    private void updateInCallButtonConfigurationSpeaker(final AppRTCAudioManager.AudioDevice selectedAudioDevice, final int numberOfChoices) {
 868        switch (selectedAudioDevice) {
 869            case EARPIECE:
 870                this.binding.inCallActionRight.setImageResource(R.drawable.ic_volume_off_black_24dp);
 871                if (numberOfChoices >= 2) {
 872                    this.binding.inCallActionRight.setOnClickListener(this::switchToSpeaker);
 873                } else {
 874                    this.binding.inCallActionRight.setOnClickListener(null);
 875                    this.binding.inCallActionRight.setClickable(false);
 876                }
 877                break;
 878            case WIRED_HEADSET:
 879                this.binding.inCallActionRight.setImageResource(R.drawable.ic_headset_black_24dp);
 880                this.binding.inCallActionRight.setOnClickListener(null);
 881                this.binding.inCallActionRight.setClickable(false);
 882                break;
 883            case SPEAKER_PHONE:
 884                this.binding.inCallActionRight.setImageResource(R.drawable.ic_volume_up_black_24dp);
 885                if (numberOfChoices >= 2) {
 886                    this.binding.inCallActionRight.setOnClickListener(this::switchToEarpiece);
 887                } else {
 888                    this.binding.inCallActionRight.setOnClickListener(null);
 889                    this.binding.inCallActionRight.setClickable(false);
 890                }
 891                break;
 892            case BLUETOOTH:
 893                this.binding.inCallActionRight.setImageResource(R.drawable.ic_bluetooth_audio_black_24dp);
 894                this.binding.inCallActionRight.setOnClickListener(null);
 895                this.binding.inCallActionRight.setClickable(false);
 896                break;
 897        }
 898        this.binding.inCallActionRight.setVisibility(View.VISIBLE);
 899    }
 900
 901    @SuppressLint("RestrictedApi")
 902    private void updateInCallButtonConfigurationVideo(final boolean videoEnabled, final boolean isCameraSwitchable) {
 903        this.binding.inCallActionRight.setVisibility(View.VISIBLE);
 904        if (isCameraSwitchable) {
 905            this.binding.inCallActionFarRight.setImageResource(R.drawable.ic_flip_camera_android_black_24dp);
 906            this.binding.inCallActionFarRight.setVisibility(View.VISIBLE);
 907            this.binding.inCallActionFarRight.setOnClickListener(this::switchCamera);
 908        } else {
 909            this.binding.inCallActionFarRight.setVisibility(View.GONE);
 910        }
 911        if (videoEnabled) {
 912            this.binding.inCallActionRight.setImageResource(R.drawable.ic_videocam_black_24dp);
 913            this.binding.inCallActionRight.setOnClickListener(this::disableVideo);
 914        } else {
 915            this.binding.inCallActionRight.setImageResource(R.drawable.ic_videocam_off_black_24dp);
 916            this.binding.inCallActionRight.setOnClickListener(this::enableVideo);
 917        }
 918    }
 919
 920    private void switchCamera(final View view) {
 921        Futures.addCallback(requireRtpConnection().switchCamera(), new FutureCallback<Boolean>() {
 922            @Override
 923            public void onSuccess(@NullableDecl Boolean isFrontCamera) {
 924                binding.localVideo.setMirror(isFrontCamera);
 925            }
 926
 927            @Override
 928            public void onFailure(@NonNull final Throwable throwable) {
 929                Log.d(Config.LOGTAG, "could not switch camera", Throwables.getRootCause(throwable));
 930                Toast.makeText(RtpSessionActivity.this, R.string.could_not_switch_camera, Toast.LENGTH_LONG).show();
 931            }
 932        }, MainThreadExecutor.getInstance());
 933    }
 934
 935    private void enableVideo(View view) {
 936        try {
 937            requireRtpConnection().setVideoEnabled(true);
 938        } catch (final IllegalStateException e) {
 939            Toast.makeText(this, R.string.unable_to_enable_video, Toast.LENGTH_SHORT).show();
 940            return;
 941        }
 942        updateInCallButtonConfigurationVideo(true, requireRtpConnection().isCameraSwitchable());
 943    }
 944
 945    private void disableVideo(View view) {
 946        requireRtpConnection().setVideoEnabled(false);
 947        updateInCallButtonConfigurationVideo(false, requireRtpConnection().isCameraSwitchable());
 948
 949    }
 950
 951    @SuppressLint("RestrictedApi")
 952    private void updateInCallButtonConfigurationMicrophone(final boolean microphoneEnabled) {
 953        if (microphoneEnabled) {
 954            this.binding.inCallActionLeft.setImageResource(R.drawable.ic_mic_black_24dp);
 955            this.binding.inCallActionLeft.setOnClickListener(this::disableMicrophone);
 956        } else {
 957            this.binding.inCallActionLeft.setImageResource(R.drawable.ic_mic_off_black_24dp);
 958            this.binding.inCallActionLeft.setOnClickListener(this::enableMicrophone);
 959        }
 960        this.binding.inCallActionLeft.setVisibility(View.VISIBLE);
 961    }
 962
 963    private void updateCallDuration() {
 964        final JingleRtpConnection connection = this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
 965        if (connection == null || connection.getMedia().contains(Media.VIDEO)) {
 966            this.binding.duration.setVisibility(View.GONE);
 967            return;
 968        }
 969        final long rtpConnectionStarted = connection.getRtpConnectionStarted();
 970        final long rtpConnectionEnded = connection.getRtpConnectionEnded();
 971        if (rtpConnectionStarted != 0) {
 972            final long ended = rtpConnectionEnded == 0 ? SystemClock.elapsedRealtime() : rtpConnectionEnded;
 973            this.binding.duration.setText(TimeFrameUtils.formatTimePassed(rtpConnectionStarted, ended, false));
 974            this.binding.duration.setVisibility(View.VISIBLE);
 975        } else {
 976            this.binding.duration.setVisibility(View.GONE);
 977        }
 978    }
 979
 980    private void updateVideoViews(final RtpEndUserState state) {
 981        if (END_CARD.contains(state) || state == RtpEndUserState.ENDING_CALL) {
 982            binding.localVideo.setVisibility(View.GONE);
 983            binding.localVideo.release();
 984            binding.remoteVideoWrapper.setVisibility(View.GONE);
 985            binding.remoteVideo.release();
 986            binding.pipLocalMicOffIndicator.setVisibility(View.GONE);
 987            if (isPictureInPicture()) {
 988                binding.appBarLayout.setVisibility(View.GONE);
 989                binding.pipPlaceholder.setVisibility(View.VISIBLE);
 990                if (Arrays.asList(
 991                        RtpEndUserState.APPLICATION_ERROR,
 992                        RtpEndUserState.CONNECTIVITY_ERROR,
 993                        RtpEndUserState.SECURITY_ERROR)
 994                        .contains(state)) {
 995                    binding.pipWarning.setVisibility(View.VISIBLE);
 996                    binding.pipWaiting.setVisibility(View.GONE);
 997                } else {
 998                    binding.pipWarning.setVisibility(View.GONE);
 999                    binding.pipWaiting.setVisibility(View.GONE);
1000                }
1001            } else {
1002                binding.appBarLayout.setVisibility(View.VISIBLE);
1003                binding.pipPlaceholder.setVisibility(View.GONE);
1004            }
1005            getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
1006            return;
1007        }
1008        if (isPictureInPicture() && (state == RtpEndUserState.CONNECTING || state == RtpEndUserState.ACCEPTING_CALL)) {
1009            binding.localVideo.setVisibility(View.GONE);
1010            binding.remoteVideoWrapper.setVisibility(View.GONE);
1011            binding.appBarLayout.setVisibility(View.GONE);
1012            binding.pipPlaceholder.setVisibility(View.VISIBLE);
1013            binding.pipWarning.setVisibility(View.GONE);
1014            binding.pipWaiting.setVisibility(View.VISIBLE);
1015            binding.pipLocalMicOffIndicator.setVisibility(View.GONE);
1016            return;
1017        }
1018        final Optional<VideoTrack> localVideoTrack = getLocalVideoTrack();
1019        if (localVideoTrack.isPresent() && !isPictureInPicture()) {
1020            ensureSurfaceViewRendererIsSetup(binding.localVideo);
1021            //paint local view over remote view
1022            binding.localVideo.setZOrderMediaOverlay(true);
1023            binding.localVideo.setMirror(requireRtpConnection().isFrontCamera());
1024            addSink(localVideoTrack.get(), binding.localVideo);
1025        } else {
1026            binding.localVideo.setVisibility(View.GONE);
1027        }
1028        final Optional<VideoTrack> remoteVideoTrack = getRemoteVideoTrack();
1029        if (remoteVideoTrack.isPresent()) {
1030            ensureSurfaceViewRendererIsSetup(binding.remoteVideo);
1031            addSink(remoteVideoTrack.get(), binding.remoteVideo);
1032            binding.remoteVideo.setScalingType(
1033                    RendererCommon.ScalingType.SCALE_ASPECT_FILL,
1034                    RendererCommon.ScalingType.SCALE_ASPECT_FIT
1035            );
1036            if (state == RtpEndUserState.CONNECTED) {
1037                binding.appBarLayout.setVisibility(View.GONE);
1038                getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
1039                binding.remoteVideoWrapper.setVisibility(View.VISIBLE);
1040            } else {
1041                getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
1042                binding.remoteVideoWrapper.setVisibility(View.GONE);
1043            }
1044            if (isPictureInPicture() && !requireRtpConnection().isMicrophoneEnabled()) {
1045                binding.pipLocalMicOffIndicator.setVisibility(View.VISIBLE);
1046            } else {
1047                binding.pipLocalMicOffIndicator.setVisibility(View.GONE);
1048            }
1049        } else {
1050            getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
1051            binding.remoteVideoWrapper.setVisibility(View.GONE);
1052            binding.pipLocalMicOffIndicator.setVisibility(View.GONE);
1053        }
1054    }
1055
1056    private Optional<VideoTrack> getLocalVideoTrack() {
1057        final JingleRtpConnection connection = this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
1058        if (connection == null) {
1059            return Optional.absent();
1060        }
1061        return connection.getLocalVideoTrack();
1062    }
1063
1064    private Optional<VideoTrack> getRemoteVideoTrack() {
1065        final JingleRtpConnection connection = this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
1066        if (connection == null) {
1067            return Optional.absent();
1068        }
1069        return connection.getRemoteVideoTrack();
1070    }
1071
1072    private void disableMicrophone(View view) {
1073        final JingleRtpConnection rtpConnection = requireRtpConnection();
1074        if (rtpConnection.setMicrophoneEnabled(false)) {
1075            updateInCallButtonConfiguration();
1076        }
1077    }
1078
1079    private void enableMicrophone(View view) {
1080        final JingleRtpConnection rtpConnection = requireRtpConnection();
1081        if (rtpConnection.setMicrophoneEnabled(true)) {
1082            updateInCallButtonConfiguration();
1083        }
1084    }
1085
1086    private void switchToEarpiece(View view) {
1087        requireRtpConnection().getAudioManager().setDefaultAudioDevice(AppRTCAudioManager.AudioDevice.EARPIECE);
1088        acquireProximityWakeLock();
1089    }
1090
1091    private void switchToSpeaker(View view) {
1092        requireRtpConnection().getAudioManager().setDefaultAudioDevice(AppRTCAudioManager.AudioDevice.SPEAKER_PHONE);
1093        releaseProximityWakeLock();
1094    }
1095
1096    private void retry(View view) {
1097        final Intent intent = getIntent();
1098        final Account account = extractAccount(intent);
1099        final Jid with = Jid.ofEscaped(intent.getStringExtra(EXTRA_WITH));
1100        final String lastAction = intent.getStringExtra(EXTRA_LAST_ACTION);
1101        final String action = intent.getAction();
1102        final Set<Media> media = actionToMedia(lastAction == null ? action : lastAction);
1103        this.rtpConnectionReference = null;
1104        Log.d(Config.LOGTAG, "attempting retry with " + with.toEscapedString());
1105        proposeJingleRtpSession(account, with, media);
1106    }
1107
1108    private void exit(final View view) {
1109        finish();
1110    }
1111
1112    private void recordVoiceMail(final View view) {
1113        final Intent intent = getIntent();
1114        final Account account = extractAccount(intent);
1115        final Jid with = Jid.ofEscaped(intent.getStringExtra(EXTRA_WITH));
1116        final Conversation conversation = xmppConnectionService.findOrCreateConversation(account, with, false, true);
1117        final Intent launchIntent = new Intent(this, ConversationsActivity.class);
1118        launchIntent.setAction(ConversationsActivity.ACTION_VIEW_CONVERSATION);
1119        launchIntent.putExtra(ConversationsActivity.EXTRA_CONVERSATION, conversation.getUuid());
1120        launchIntent.setFlags(intent.getFlags() | Intent.FLAG_ACTIVITY_CLEAR_TOP);
1121        launchIntent.putExtra(ConversationsActivity.EXTRA_POST_INIT_ACTION, ConversationsActivity.POST_ACTION_RECORD_VOICE);
1122        startActivity(launchIntent);
1123        finish();
1124    }
1125
1126    private Contact getWith() {
1127        final AbstractJingleConnection.Id id = requireRtpConnection().getId();
1128        final Account account = id.account;
1129        return account.getRoster().getContact(id.with);
1130    }
1131
1132    private JingleRtpConnection requireRtpConnection() {
1133        final JingleRtpConnection connection = this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
1134        if (connection == null) {
1135            throw new IllegalStateException("No RTP connection found");
1136        }
1137        return connection;
1138    }
1139
1140    @Override
1141    public void onJingleRtpConnectionUpdate(Account account, Jid with, final String sessionId, RtpEndUserState state) {
1142        Log.d(Config.LOGTAG, "onJingleRtpConnectionUpdate(" + state + ")");
1143        if (END_CARD.contains(state)) {
1144            Log.d(Config.LOGTAG, "end card reached");
1145            releaseProximityWakeLock();
1146            runOnUiThread(() -> getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON));
1147        }
1148        if (with.isBareJid()) {
1149            updateRtpSessionProposalState(account, with, state);
1150            return;
1151        }
1152        if (emptyReference(this.rtpConnectionReference)) {
1153            if (END_CARD.contains(state)) {
1154                Log.d(Config.LOGTAG, "not reinitializing session");
1155                return;
1156            }
1157            //this happens when going from proposed session to actual session
1158            reInitializeActivityWithRunningRtpSession(account, with, sessionId);
1159            return;
1160        }
1161        final AbstractJingleConnection.Id id = requireRtpConnection().getId();
1162        final boolean verified = requireRtpConnection().isVerified();
1163        final Set<Media> media = getMedia();
1164        final Contact contact = getWith();
1165        if (account == id.account && id.with.equals(with) && id.sessionId.equals(sessionId)) {
1166            if (state == RtpEndUserState.ENDED) {
1167                finish();
1168                return;
1169            }
1170            runOnUiThread(() -> {
1171                updateStateDisplay(state, media);
1172                updateVerifiedShield(verified && STATES_SHOWING_SWITCH_TO_CHAT.contains(state));
1173                updateButtonConfiguration(state, media);
1174                updateVideoViews(state);
1175                updateProfilePicture(state, contact);
1176                invalidateOptionsMenu();
1177            });
1178            if (END_CARD.contains(state)) {
1179                final JingleRtpConnection rtpConnection = requireRtpConnection();
1180                resetIntent(account, with, state, rtpConnection.getMedia());
1181                releaseVideoTracks(rtpConnection);
1182                this.rtpConnectionReference = null;
1183            }
1184        } else {
1185            Log.d(Config.LOGTAG, "received update for other rtp session");
1186        }
1187    }
1188
1189    @Override
1190    public void onAudioDeviceChanged(AppRTCAudioManager.AudioDevice selectedAudioDevice, Set<AppRTCAudioManager.AudioDevice> availableAudioDevices) {
1191        Log.d(Config.LOGTAG, "onAudioDeviceChanged in activity: selected:" + selectedAudioDevice + ", available:" + availableAudioDevices);
1192        try {
1193            if (getMedia().contains(Media.VIDEO)) {
1194                Log.d(Config.LOGTAG, "nothing to do; in video mode");
1195                return;
1196            }
1197            final RtpEndUserState endUserState = requireRtpConnection().getEndUserState();
1198            if (endUserState == RtpEndUserState.CONNECTED) {
1199                final AppRTCAudioManager audioManager = requireRtpConnection().getAudioManager();
1200                updateInCallButtonConfigurationSpeaker(
1201                        audioManager.getSelectedAudioDevice(),
1202                        audioManager.getAudioDevices().size()
1203                );
1204            } else if (END_CARD.contains(endUserState)) {
1205                Log.d(Config.LOGTAG, "onAudioDeviceChanged() nothing to do because end card has been reached");
1206            } else {
1207                putProximityWakeLockInProperState(selectedAudioDevice);
1208            }
1209        } catch (IllegalStateException e) {
1210            Log.d(Config.LOGTAG, "RTP connection was not available when audio device changed");
1211        }
1212    }
1213
1214    @Override
1215    protected void onSaveInstanceState(@NonNull @NotNull Bundle outState) {
1216        super.onSaveInstanceState(outState);
1217        int visibility = findViewById(R.id.action_dialpad).getVisibility();
1218        System.out.println("visibility onSave = " + visibility);
1219        outState.putInt("dialpad_visibility", visibility);
1220    }
1221
1222    private void updateRtpSessionProposalState(final Account account, final Jid with, final RtpEndUserState state) {
1223        final Intent currentIntent = getIntent();
1224        final String withExtra = currentIntent == null ? null : currentIntent.getStringExtra(EXTRA_WITH);
1225        if (withExtra == null) {
1226            return;
1227        }
1228        if (Jid.ofEscaped(withExtra).asBareJid().equals(with)) {
1229            runOnUiThread(() -> {
1230                updateVerifiedShield(false);
1231                updateStateDisplay(state);
1232                updateButtonConfiguration(state);
1233                updateProfilePicture(state);
1234                invalidateOptionsMenu();
1235            });
1236            resetIntent(account, with, state, actionToMedia(currentIntent.getAction()));
1237        }
1238    }
1239
1240    private void resetIntent(final Bundle extras) {
1241        final Intent intent = new Intent(Intent.ACTION_VIEW);
1242        intent.putExtras(extras);
1243        setIntent(intent);
1244    }
1245
1246    private void resetIntent(final Account account, Jid with, final RtpEndUserState state, final Set<Media> media) {
1247        final Intent intent = new Intent(Intent.ACTION_VIEW);
1248        intent.putExtra(EXTRA_ACCOUNT, account.getJid().toEscapedString());
1249        if (account.getRoster().getContact(with).getPresences().anySupport(Namespace.JINGLE_MESSAGE)) {
1250            intent.putExtra(EXTRA_WITH, with.asBareJid().toEscapedString());
1251        } else {
1252            intent.putExtra(EXTRA_WITH, with.toEscapedString());
1253        }
1254        intent.putExtra(EXTRA_LAST_REPORTED_STATE, state.toString());
1255        intent.putExtra(EXTRA_LAST_ACTION, media.contains(Media.VIDEO) ? ACTION_MAKE_VIDEO_CALL : ACTION_MAKE_VOICE_CALL);
1256        setIntent(intent);
1257    }
1258
1259    private static boolean emptyReference(final WeakReference<?> weakReference) {
1260        return weakReference == null || weakReference.get() == null;
1261    }
1262}