1package eu.siacs.conversations.ui;
   2
   3import android.Manifest;
   4import android.annotation.SuppressLint;
   5import android.app.Dialog;
   6import android.app.PendingIntent;
   7import android.content.ActivityNotFoundException;
   8import android.content.Context;
   9import android.content.Intent;
  10import android.content.SharedPreferences;
  11import android.content.pm.PackageManager;
  12import android.databinding.DataBindingUtil;
  13import android.net.Uri;
  14import android.os.Build;
  15import android.os.Bundle;
  16import android.support.annotation.DrawableRes;
  17import android.support.annotation.NonNull;
  18import android.support.annotation.Nullable;
  19import android.support.v4.app.Fragment;
  20import android.support.v4.app.FragmentManager;
  21import android.support.v4.app.FragmentTransaction;
  22import android.support.v4.app.ListFragment;
  23import android.support.v4.view.PagerAdapter;
  24import android.support.v4.view.ViewPager;
  25import android.support.v7.app.ActionBar;
  26import android.support.v7.app.AlertDialog;
  27import android.support.v7.widget.Toolbar;
  28import android.text.Editable;
  29import android.text.SpannableString;
  30import android.text.Spanned;
  31import android.text.TextWatcher;
  32import android.text.style.TypefaceSpan;
  33import android.util.Log;
  34import android.util.Pair;
  35import android.view.ContextMenu;
  36import android.view.ContextMenu.ContextMenuInfo;
  37import android.view.KeyEvent;
  38import android.view.Menu;
  39import android.view.MenuItem;
  40import android.view.View;
  41import android.view.ViewGroup;
  42import android.view.inputmethod.InputMethodManager;
  43import android.widget.AdapterView;
  44import android.widget.AdapterView.AdapterContextMenuInfo;
  45import android.widget.ArrayAdapter;
  46import android.widget.AutoCompleteTextView;
  47import android.widget.CheckBox;
  48import android.widget.EditText;
  49import android.widget.ListView;
  50import android.widget.Spinner;
  51import android.widget.TextView;
  52import android.widget.Toast;
  53
  54import java.util.ArrayList;
  55import java.util.Arrays;
  56import java.util.Collections;
  57import java.util.List;
  58import java.util.concurrent.atomic.AtomicBoolean;
  59
  60import eu.siacs.conversations.Config;
  61import eu.siacs.conversations.R;
  62import eu.siacs.conversations.databinding.ActivityStartConversationBinding;
  63import eu.siacs.conversations.entities.Account;
  64import eu.siacs.conversations.entities.Bookmark;
  65import eu.siacs.conversations.entities.Contact;
  66import eu.siacs.conversations.entities.Conversation;
  67import eu.siacs.conversations.entities.ListItem;
  68import eu.siacs.conversations.entities.Presence;
  69import eu.siacs.conversations.services.XmppConnectionService;
  70import eu.siacs.conversations.services.XmppConnectionService.OnRosterUpdate;
  71import eu.siacs.conversations.ui.adapter.ListItemAdapter;
  72import eu.siacs.conversations.ui.interfaces.OnBackendConnected;
  73import eu.siacs.conversations.ui.service.EmojiService;
  74import eu.siacs.conversations.ui.util.JidDialog;
  75import eu.siacs.conversations.ui.util.MenuDoubleTabUtil;
  76import eu.siacs.conversations.ui.util.PendingItem;
  77import eu.siacs.conversations.ui.util.SoftKeyboardUtils;
  78import eu.siacs.conversations.utils.XmppUri;
  79import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
  80import eu.siacs.conversations.xmpp.XmppConnection;
  81import rocks.xmpp.addr.Jid;
  82
  83public class StartConversationActivity extends XmppActivity implements XmppConnectionService.OnConversationUpdate, OnRosterUpdate, OnUpdateBlocklist, CreateConferenceDialog.CreateConferenceDialogListener, JoinConferenceDialog.JoinConferenceDialogListener {
  84
  85	public static final String EXTRA_INVITE_URI = "eu.siacs.conversations.invite_uri";
  86
  87	private final int REQUEST_SYNC_CONTACTS = 0x28cf;
  88	private final int REQUEST_CREATE_CONFERENCE = 0x39da;
  89	private final PendingItem<Intent> pendingViewIntent = new PendingItem<>();
  90	private final PendingItem<String> mInitialSearchValue = new PendingItem<>();
  91	private final AtomicBoolean oneShotKeyboardSuppress = new AtomicBoolean();
  92	public int conference_context_id;
  93	public int contact_context_id;
  94	private ListPagerAdapter mListPagerAdapter;
  95	private List<ListItem> contacts = new ArrayList<>();
  96	private ListItemAdapter mContactsAdapter;
  97	private List<ListItem> conferences = new ArrayList<>();
  98	private ListItemAdapter mConferenceAdapter;
  99	private List<String> mActivatedAccounts = new ArrayList<>();
 100	private EditText mSearchEditText;
 101	private AtomicBoolean mRequestedContactsPermission = new AtomicBoolean(false);
 102	private boolean mHideOfflineContacts = false;
 103	private MenuItem.OnActionExpandListener mOnActionExpandListener = new MenuItem.OnActionExpandListener() {
 104
 105		@Override
 106		public boolean onMenuItemActionExpand(MenuItem item) {
 107			mSearchEditText.post(() -> {
 108				updateSearchViewHint();
 109				mSearchEditText.requestFocus();
 110				if (oneShotKeyboardSuppress.compareAndSet(true, false)) {
 111					return;
 112				}
 113				InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
 114				if (imm != null) {
 115					imm.showSoftInput(mSearchEditText, InputMethodManager.SHOW_IMPLICIT);
 116				}
 117			});
 118
 119			return true;
 120		}
 121
 122		@Override
 123		public boolean onMenuItemActionCollapse(MenuItem item) {
 124			SoftKeyboardUtils.hideSoftKeyboard(StartConversationActivity.this);
 125			mSearchEditText.setText("");
 126			filter(null);
 127			return true;
 128		}
 129	};
 130	private TextWatcher mSearchTextWatcher = new TextWatcher() {
 131
 132		@Override
 133		public void afterTextChanged(Editable editable) {
 134			filter(editable.toString());
 135		}
 136
 137		@Override
 138		public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 139		}
 140
 141		@Override
 142		public void onTextChanged(CharSequence s, int start, int before, int count) {
 143		}
 144	};
 145	private MenuItem mMenuSearchView;
 146	private ListItemAdapter.OnTagClickedListener mOnTagClickedListener = new ListItemAdapter.OnTagClickedListener() {
 147		@Override
 148		public void onTagClicked(String tag) {
 149			if (mMenuSearchView != null) {
 150				mMenuSearchView.expandActionView();
 151				mSearchEditText.setText("");
 152				mSearchEditText.append(tag);
 153				filter(tag);
 154			}
 155		}
 156	};
 157	private Pair<Integer, Intent> mPostponedActivityResult;
 158	private Toast mToast;
 159	private UiCallback<Conversation> mAdhocConferenceCallback = new UiCallback<Conversation>() {
 160		@Override
 161		public void success(final Conversation conversation) {
 162			runOnUiThread(() -> {
 163				hideToast();
 164				switchToConversation(conversation);
 165			});
 166		}
 167
 168		@Override
 169		public void error(final int errorCode, Conversation object) {
 170			runOnUiThread(() -> replaceToast(getString(errorCode)));
 171		}
 172
 173		@Override
 174		public void userInputRequried(PendingIntent pi, Conversation object) {
 175
 176		}
 177	};
 178	private ActivityStartConversationBinding binding;
 179	private TextView.OnEditorActionListener mSearchDone = new TextView.OnEditorActionListener() {
 180		@Override
 181		public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
 182			int pos = binding.startConversationViewPager.getCurrentItem();
 183			if (pos == 0) {
 184				if (contacts.size() == 1) {
 185					openConversationForContact((Contact) contacts.get(0));
 186					return true;
 187				} else if (contacts.size() == 0 && conferences.size() == 1) {
 188					openConversationsForBookmark((Bookmark) conferences.get(0));
 189					return true;
 190				}
 191			} else {
 192				if (conferences.size() == 1) {
 193					openConversationsForBookmark((Bookmark) conferences.get(0));
 194					return true;
 195				} else if (conferences.size() == 0 && contacts.size() == 1) {
 196					openConversationForContact((Contact) contacts.get(0));
 197					return true;
 198				}
 199			}
 200			SoftKeyboardUtils.hideSoftKeyboard(StartConversationActivity.this);
 201			mListPagerAdapter.requestFocus(pos);
 202			return true;
 203		}
 204	};
 205	private ViewPager.SimpleOnPageChangeListener mOnPageChangeListener = new ViewPager.SimpleOnPageChangeListener() {
 206		@Override
 207		public void onPageSelected(int position) {
 208			onTabChanged();
 209		}
 210	};
 211
 212	public static void populateAccountSpinner(Context context, List<String> accounts, Spinner spinner) {
 213		if (accounts.size() > 0) {
 214			ArrayAdapter<String> adapter = new ArrayAdapter<>(context, R.layout.simple_list_item, accounts);
 215			adapter.setDropDownViewResource(R.layout.simple_list_item);
 216			spinner.setAdapter(adapter);
 217			spinner.setEnabled(true);
 218		} else {
 219			ArrayAdapter<String> adapter = new ArrayAdapter<>(context,
 220					R.layout.simple_list_item,
 221					Arrays.asList(context.getString(R.string.no_accounts)));
 222			adapter.setDropDownViewResource(R.layout.simple_list_item);
 223			spinner.setAdapter(adapter);
 224			spinner.setEnabled(false);
 225		}
 226	}
 227
 228	public static void launch(Context context) {
 229		final Intent intent = new Intent(context, StartConversationActivity.class);
 230		context.startActivity(intent);
 231	}
 232
 233	private static Intent createLauncherIntent(Context context) {
 234		final Intent intent = new Intent(context, StartConversationActivity.class);
 235		intent.setAction(Intent.ACTION_MAIN);
 236		intent.addCategory(Intent.CATEGORY_LAUNCHER);
 237		return intent;
 238	}
 239
 240	private static boolean isViewIntent(final Intent i) {
 241		return i != null && (Intent.ACTION_VIEW.equals(i.getAction()) || Intent.ACTION_SENDTO.equals(i.getAction()) || i.hasExtra(EXTRA_INVITE_URI));
 242	}
 243
 244	protected void hideToast() {
 245		if (mToast != null) {
 246			mToast.cancel();
 247		}
 248	}
 249
 250	protected void replaceToast(String msg) {
 251		hideToast();
 252		mToast = Toast.makeText(this, msg, Toast.LENGTH_LONG);
 253		mToast.show();
 254	}
 255
 256	@Override
 257	public void onRosterUpdate() {
 258		this.refreshUi();
 259	}
 260
 261	@Override
 262	public void onCreate(Bundle savedInstanceState) {
 263		super.onCreate(savedInstanceState);
 264		new EmojiService(this).init();
 265		this.binding = DataBindingUtil.setContentView(this, R.layout.activity_start_conversation);
 266		Toolbar toolbar = (Toolbar) binding.toolbar;
 267		setSupportActionBar(toolbar);
 268		configureActionBar(getSupportActionBar());
 269		this.binding.fab.setOnClickListener((v) -> {
 270			if (binding.startConversationViewPager.getCurrentItem() == 0) {
 271				String searchString = mSearchEditText != null ? mSearchEditText.getText().toString() : null;
 272				if (searchString != null && !searchString.trim().isEmpty()) {
 273					try {
 274						Jid jid = Jid.of(searchString);
 275						if (jid.getLocal() != null && jid.isBareJid() && jid.getDomain().contains(".")) {
 276							showCreateContactDialog(jid.toString(), null);
 277							return;
 278						}
 279					} catch (IllegalArgumentException ignored) {
 280						//ignore and fall through
 281					}
 282				}
 283				showCreateContactDialog(null, null);
 284			} else {
 285				showCreateConferenceDialog();
 286			}
 287		});
 288		binding.tabLayout.setupWithViewPager(binding.startConversationViewPager);
 289		binding.startConversationViewPager.addOnPageChangeListener(mOnPageChangeListener);
 290		mListPagerAdapter = new ListPagerAdapter(getSupportFragmentManager());
 291		binding.startConversationViewPager.setAdapter(mListPagerAdapter);
 292
 293		mConferenceAdapter = new ListItemAdapter(this, conferences);
 294		mContactsAdapter = new ListItemAdapter(this, contacts);
 295		mContactsAdapter.setOnTagClickedListener(this.mOnTagClickedListener);
 296
 297		final SharedPreferences preferences = getPreferences();
 298
 299		this.mHideOfflineContacts = preferences.getBoolean("hide_offline", false);
 300
 301		final boolean startSearching = preferences.getBoolean("start_searching",getResources().getBoolean(R.bool.start_searching));
 302
 303		final Intent intent;
 304		if (savedInstanceState == null) {
 305			intent = getIntent();
 306		} else {
 307			final String search = savedInstanceState.getString("search");
 308			if (search != null) {
 309				mInitialSearchValue.push(search);
 310			}
 311			intent = savedInstanceState.getParcelable("intent");
 312		}
 313
 314		if (isViewIntent(intent)) {
 315			pendingViewIntent.push(intent);
 316			setIntent(createLauncherIntent(this));
 317		} else if (startSearching && mInitialSearchValue.peek() == null) {
 318			mInitialSearchValue.push("");
 319		}
 320	}
 321
 322	@Override
 323	public void onSaveInstanceState(Bundle savedInstanceState) {
 324		Intent pendingIntent = pendingViewIntent.peek();
 325		savedInstanceState.putParcelable("intent", pendingIntent != null ? pendingIntent : getIntent());
 326		if (mMenuSearchView != null && mMenuSearchView.isActionViewExpanded()) {
 327			savedInstanceState.putString("search", mSearchEditText != null ? mSearchEditText.getText().toString() : null);
 328		}
 329		super.onSaveInstanceState(savedInstanceState);
 330	}
 331
 332	@Override
 333	public void onStart() {
 334		super.onStart();
 335		final int theme = findTheme();
 336		if (this.mTheme != theme) {
 337			recreate();
 338		} else {
 339			if (pendingViewIntent.peek() == null) {
 340				askForContactsPermissions();
 341			}
 342		}
 343		mConferenceAdapter.refreshSettings();
 344		mContactsAdapter.refreshSettings();
 345	}
 346
 347	@Override
 348	public void onNewIntent(final Intent intent) {
 349		if (xmppConnectionServiceBound) {
 350			processViewIntent(intent);
 351		} else {
 352			pendingViewIntent.push(intent);
 353		}
 354		setIntent(createLauncherIntent(this));
 355	}
 356
 357	protected void openConversationForContact(int position) {
 358		Contact contact = (Contact) contacts.get(position);
 359		openConversationForContact(contact);
 360	}
 361
 362	protected void openConversationForContact(Contact contact) {
 363		Conversation conversation = xmppConnectionService.findOrCreateConversation(contact.getAccount(), contact.getJid(), false, true);
 364		SoftKeyboardUtils.hideSoftKeyboard(this);
 365		switchToConversation(conversation);
 366	}
 367
 368	protected void openConversationForBookmark() {
 369		openConversationForBookmark(conference_context_id);
 370	}
 371
 372	protected void openConversationForBookmark(int position) {
 373		Bookmark bookmark = (Bookmark) conferences.get(position);
 374		openConversationsForBookmark(bookmark);
 375	}
 376
 377	protected void shareBookmarkUri() {
 378		shareBookmarkUri(conference_context_id);
 379	}
 380
 381	protected void shareBookmarkUri(int position) {
 382		Bookmark bookmark = (Bookmark) conferences.get(position);
 383		Intent shareIntent = new Intent();
 384		shareIntent.setAction(Intent.ACTION_SEND);
 385		shareIntent.putExtra(Intent.EXTRA_TEXT, "xmpp:" + bookmark.getJid().asBareJid().toEscapedString() + "?join");
 386		shareIntent.setType("text/plain");
 387		try {
 388			startActivity(Intent.createChooser(shareIntent, getText(R.string.share_uri_with)));
 389		} catch (ActivityNotFoundException e) {
 390			Toast.makeText(this, R.string.no_application_to_share_uri, Toast.LENGTH_SHORT).show();
 391		}
 392	}
 393
 394	protected void openConversationsForBookmark(Bookmark bookmark) {
 395		Jid jid = bookmark.getJid();
 396		if (jid == null) {
 397			Toast.makeText(this, R.string.invalid_jid, Toast.LENGTH_SHORT).show();
 398			return;
 399		}
 400		Conversation conversation = xmppConnectionService.findOrCreateConversation(bookmark.getAccount(), jid, true, true, true);
 401		bookmark.setConversation(conversation);
 402		if (!bookmark.autojoin() && getPreferences().getBoolean("autojoin", getResources().getBoolean(R.bool.autojoin))) {
 403			bookmark.setAutojoin(true);
 404			xmppConnectionService.pushBookmarks(bookmark.getAccount());
 405		}
 406		SoftKeyboardUtils.hideSoftKeyboard(this);
 407		switchToConversation(conversation);
 408	}
 409
 410	protected void openDetailsForContact() {
 411		int position = contact_context_id;
 412		Contact contact = (Contact) contacts.get(position);
 413		switchToContactDetails(contact);
 414	}
 415
 416	protected void showQrForContact() {
 417		int position = contact_context_id;
 418		Contact contact = (Contact) contacts.get(position);
 419		showQrCode("xmpp:"+contact.getJid().asBareJid().toEscapedString());
 420	}
 421
 422	protected void toggleContactBlock() {
 423		final int position = contact_context_id;
 424		BlockContactDialog.show(this, (Contact) contacts.get(position));
 425	}
 426
 427	protected void deleteContact() {
 428		final int position = contact_context_id;
 429		final Contact contact = (Contact) contacts.get(position);
 430		final AlertDialog.Builder builder = new AlertDialog.Builder(this);
 431		builder.setNegativeButton(R.string.cancel, null);
 432		builder.setTitle(R.string.action_delete_contact);
 433		builder.setMessage(JidDialog.style(this, R.string.remove_contact_text, contact.getJid().toEscapedString()));
 434		builder.setPositiveButton(R.string.delete, (dialog, which) -> {
 435			xmppConnectionService.deleteContactOnServer(contact);
 436			filter(mSearchEditText.getText().toString());
 437		});
 438		builder.create().show();
 439	}
 440
 441	protected void deleteConference() {
 442		int position = conference_context_id;
 443		final Bookmark bookmark = (Bookmark) conferences.get(position);
 444
 445		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 446		builder.setNegativeButton(R.string.cancel, null);
 447		builder.setTitle(R.string.delete_bookmark);
 448		builder.setMessage(JidDialog.style(this, R.string.remove_bookmark_text, bookmark.getJid().toEscapedString()));
 449		builder.setPositiveButton(R.string.delete, (dialog, which) -> {
 450			bookmark.setConversation(null);
 451			Account account = bookmark.getAccount();
 452			account.getBookmarks().remove(bookmark);
 453			xmppConnectionService.pushBookmarks(account);
 454			filter(mSearchEditText.getText().toString());
 455		});
 456		builder.create().show();
 457
 458	}
 459
 460	@SuppressLint("InflateParams")
 461	protected void showCreateContactDialog(final String prefilledJid, final Invite invite) {
 462		FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
 463		Fragment prev = getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAG_DIALOG);
 464		if (prev != null) {
 465			ft.remove(prev);
 466		}
 467		ft.addToBackStack(null);
 468		EnterJidDialog dialog = EnterJidDialog.newInstance(
 469				mActivatedAccounts,
 470				getString(R.string.dialog_title_create_contact),
 471				getString(R.string.create),
 472				prefilledJid,
 473				null,
 474				invite == null || !invite.hasFingerprints()
 475		);
 476
 477		dialog.setOnEnterJidDialogPositiveListener((accountJid, contactJid) -> {
 478			if (!xmppConnectionServiceBound) {
 479				return false;
 480			}
 481
 482			final Account account = xmppConnectionService.findAccountByJid(accountJid);
 483			if (account == null) {
 484				return true;
 485			}
 486
 487			final Contact contact = account.getRoster().getContact(contactJid);
 488			if (invite != null && invite.getName() != null) {
 489				contact.setServerName(invite.getName());
 490			}
 491			if (contact.isSelf()) {
 492				switchToConversation(contact);
 493				return true;
 494			} else if (contact.showInRoster()) {
 495				throw new EnterJidDialog.JidError(getString(R.string.contact_already_exists));
 496			} else {
 497				xmppConnectionService.createContact(contact, true);
 498				if (invite != null && invite.hasFingerprints()) {
 499					xmppConnectionService.verifyFingerprints(contact, invite.getFingerprints());
 500				}
 501				switchToConversationDoNotAppend(contact, invite == null ? null : invite.getBody());
 502				return true;
 503			}
 504		});
 505		dialog.show(ft, FRAGMENT_TAG_DIALOG);
 506	}
 507
 508	@SuppressLint("InflateParams")
 509	protected void showJoinConferenceDialog(final String prefilledJid) {
 510		FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
 511		Fragment prev = getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAG_DIALOG);
 512		if (prev != null) {
 513			ft.remove(prev);
 514		}
 515		ft.addToBackStack(null);
 516		JoinConferenceDialog joinConferenceFragment = JoinConferenceDialog.newInstance(prefilledJid, mActivatedAccounts);
 517		joinConferenceFragment.show(ft, FRAGMENT_TAG_DIALOG);
 518	}
 519
 520	private void showCreateConferenceDialog() {
 521		FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
 522		Fragment prev = getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAG_DIALOG);
 523		if (prev != null) {
 524			ft.remove(prev);
 525		}
 526		ft.addToBackStack(null);
 527		CreateConferenceDialog createConferenceFragment = CreateConferenceDialog.newInstance(mActivatedAccounts);
 528		createConferenceFragment.show(ft, FRAGMENT_TAG_DIALOG);
 529	}
 530
 531	private Account getSelectedAccount(Spinner spinner) {
 532		if (!spinner.isEnabled()) {
 533			return null;
 534		}
 535		Jid jid;
 536		try {
 537			if (Config.DOMAIN_LOCK != null) {
 538				jid = Jid.of((String) spinner.getSelectedItem(), Config.DOMAIN_LOCK, null);
 539			} else {
 540				jid = Jid.of((String) spinner.getSelectedItem());
 541			}
 542		} catch (final IllegalArgumentException e) {
 543			return null;
 544		}
 545		return xmppConnectionService.findAccountByJid(jid);
 546	}
 547
 548	protected void switchToConversation(Contact contact) {
 549		Conversation conversation = xmppConnectionService.findOrCreateConversation(contact.getAccount(), contact.getJid(), false, true);
 550		switchToConversation(conversation);
 551	}
 552
 553	protected void switchToConversationDoNotAppend(Contact contact, String body) {
 554		Conversation conversation = xmppConnectionService.findOrCreateConversation(contact.getAccount(), contact.getJid(), false, true);
 555		switchToConversationDoNotAppend(conversation, body);
 556	}
 557
 558	@Override
 559	public void invalidateOptionsMenu() {
 560		boolean isExpanded = mMenuSearchView != null && mMenuSearchView.isActionViewExpanded();
 561		String text = mSearchEditText != null ? mSearchEditText.getText().toString() : "";
 562		if (isExpanded) {
 563			mInitialSearchValue.push(text);
 564			oneShotKeyboardSuppress.set(true);
 565		}
 566		super.invalidateOptionsMenu();
 567	}
 568
 569	private void updateSearchViewHint() {
 570		if (binding == null || mSearchEditText == null) {
 571			return;
 572		}
 573		if (binding.startConversationViewPager.getCurrentItem() == 0) {
 574			mSearchEditText.setHint(R.string.search_contacts);
 575		} else {
 576			mSearchEditText.setHint(R.string.search_groups);
 577		}
 578	}
 579
 580	@Override
 581	public boolean onCreateOptionsMenu(Menu menu) {
 582		getMenuInflater().inflate(R.menu.start_conversation, menu);
 583		MenuItem menuHideOffline = menu.findItem(R.id.action_hide_offline);
 584		MenuItem joinGroupChat = menu.findItem(R.id.action_join_conference);
 585		MenuItem qrCodeScanMenuItem = menu.findItem(R.id.action_scan_qr_code);
 586		joinGroupChat.setVisible(binding.startConversationViewPager.getCurrentItem() == 1);
 587		qrCodeScanMenuItem.setVisible(isCameraFeatureAvailable());
 588		menuHideOffline.setChecked(this.mHideOfflineContacts);
 589		mMenuSearchView = menu.findItem(R.id.action_search);
 590		mMenuSearchView.setOnActionExpandListener(mOnActionExpandListener);
 591		View mSearchView = mMenuSearchView.getActionView();
 592		mSearchEditText = mSearchView.findViewById(R.id.search_field);
 593		mSearchEditText.addTextChangedListener(mSearchTextWatcher);
 594		mSearchEditText.setOnEditorActionListener(mSearchDone);
 595		String initialSearchValue = mInitialSearchValue.pop();
 596		if (initialSearchValue != null) {
 597			mMenuSearchView.expandActionView();
 598			mSearchEditText.append(initialSearchValue);
 599			filter(initialSearchValue);
 600		}
 601		updateSearchViewHint();
 602		return super.onCreateOptionsMenu(menu);
 603	}
 604
 605	@Override
 606	public boolean onOptionsItemSelected(MenuItem item) {
 607		if (MenuDoubleTabUtil.shouldIgnoreTap()) {
 608			return false;
 609		}
 610		switch (item.getItemId()) {
 611			case android.R.id.home:
 612				navigateBack();
 613				return true;
 614			case R.id.action_join_conference:
 615				showJoinConferenceDialog(null);
 616				return true;
 617			case R.id.action_scan_qr_code:
 618				UriHandlerActivity.scan(this);
 619				return true;
 620			case R.id.action_hide_offline:
 621				mHideOfflineContacts = !item.isChecked();
 622				getPreferences().edit().putBoolean("hide_offline", mHideOfflineContacts).commit();
 623				if (mSearchEditText != null) {
 624					filter(mSearchEditText.getText().toString());
 625				}
 626				invalidateOptionsMenu();
 627		}
 628		return super.onOptionsItemSelected(item);
 629	}
 630
 631	@Override
 632	public boolean onKeyUp(int keyCode, KeyEvent event) {
 633		if (keyCode == KeyEvent.KEYCODE_SEARCH && !event.isLongPress()) {
 634			openSearch();
 635			return true;
 636		}
 637		int c = event.getUnicodeChar();
 638		if (c > 32) {
 639			if (mSearchEditText != null && !mSearchEditText.isFocused()) {
 640				openSearch();
 641				mSearchEditText.append(Character.toString((char) c));
 642				return true;
 643			}
 644		}
 645		return super.onKeyUp(keyCode, event);
 646	}
 647
 648	private void openSearch() {
 649		if (mMenuSearchView != null) {
 650			mMenuSearchView.expandActionView();
 651		}
 652	}
 653
 654	@Override
 655	public void onActivityResult(int requestCode, int resultCode, Intent intent) {
 656		if (resultCode == RESULT_OK) {
 657			if (xmppConnectionServiceBound) {
 658				this.mPostponedActivityResult = null;
 659				if (requestCode == REQUEST_CREATE_CONFERENCE) {
 660					Account account = extractAccount(intent);
 661					final String name = intent.getStringExtra(ChooseContactActivity.EXTRA_GROUP_CHAT_NAME);
 662					final List<Jid> jids = ChooseContactActivity.extractJabberIds(intent);
 663					if (account != null && jids.size() > 0) {
 664						if (xmppConnectionService.createAdhocConference(account, name, jids, mAdhocConferenceCallback)) {
 665							mToast = Toast.makeText(this, R.string.creating_conference, Toast.LENGTH_LONG);
 666							mToast.show();
 667						}
 668					}
 669				}
 670			} else {
 671				this.mPostponedActivityResult = new Pair<>(requestCode, intent);
 672			}
 673		}
 674		super.onActivityResult(requestCode, requestCode, intent);
 675	}
 676
 677	private void askForContactsPermissions() {
 678		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 679			if (checkSelfPermission(Manifest.permission.READ_CONTACTS) != PackageManager.PERMISSION_GRANTED) {
 680				if (mRequestedContactsPermission.compareAndSet(false, true)) {
 681					if (shouldShowRequestPermissionRationale(Manifest.permission.READ_CONTACTS)) {
 682						AlertDialog.Builder builder = new AlertDialog.Builder(this);
 683						builder.setTitle(R.string.sync_with_contacts);
 684						builder.setMessage(R.string.sync_with_contacts_long);
 685						builder.setPositiveButton(R.string.next, (dialog, which) -> requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, REQUEST_SYNC_CONTACTS));
 686						builder.setOnDismissListener(dialog -> requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, REQUEST_SYNC_CONTACTS));
 687						builder.create().show();
 688					} else {
 689						requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, REQUEST_SYNC_CONTACTS);
 690					}
 691				}
 692			}
 693		}
 694	}
 695
 696	@Override
 697	public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[], @NonNull int[] grantResults) {
 698		if (grantResults.length > 0)
 699			if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
 700				ScanActivity.onRequestPermissionResult(this, requestCode, grantResults);
 701				if (requestCode == REQUEST_SYNC_CONTACTS && xmppConnectionServiceBound) {
 702					xmppConnectionService.loadPhoneContacts();
 703					xmppConnectionService.startContactObserver();
 704				}
 705			}
 706	}
 707
 708	private void configureHomeButton() {
 709		final ActionBar actionBar = getSupportActionBar();
 710		if (actionBar == null) {
 711			return;
 712		}
 713		boolean openConversations = !xmppConnectionService.isConversationsListEmpty(null);
 714		actionBar.setDisplayHomeAsUpEnabled(openConversations);
 715		actionBar.setDisplayHomeAsUpEnabled(openConversations);
 716
 717	}
 718
 719	@Override
 720	protected void onBackendConnected() {
 721		if (mPostponedActivityResult != null) {
 722			onActivityResult(mPostponedActivityResult.first, RESULT_OK, mPostponedActivityResult.second);
 723			this.mPostponedActivityResult = null;
 724		}
 725		this.mActivatedAccounts.clear();
 726		for (Account account : xmppConnectionService.getAccounts()) {
 727			if (account.getStatus() != Account.State.DISABLED) {
 728				if (Config.DOMAIN_LOCK != null) {
 729					this.mActivatedAccounts.add(account.getJid().getLocal());
 730				} else {
 731					this.mActivatedAccounts.add(account.getJid().asBareJid().toString());
 732				}
 733			}
 734		}
 735		configureHomeButton();
 736		Intent intent = pendingViewIntent.pop();
 737		if (intent != null && processViewIntent(intent)) {
 738			filter(null);
 739		} else {
 740			if (mSearchEditText != null) {
 741				filter(mSearchEditText.getText().toString());
 742			} else {
 743				filter(null);
 744			}
 745		}
 746		Fragment fragment = getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAG_DIALOG);
 747		if (fragment != null && fragment instanceof OnBackendConnected) {
 748			Log.d(Config.LOGTAG, "calling on backend connected on dialog");
 749			((OnBackendConnected) fragment).onBackendConnected();
 750		}
 751	}
 752
 753	protected boolean processViewIntent(@NonNull Intent intent) {
 754		final String inviteUri = intent.getStringExtra(EXTRA_INVITE_URI);
 755		if (inviteUri != null) {
 756			Invite invite = new Invite(inviteUri);
 757			if (invite.isJidValid()) {
 758				return invite.invite();
 759			}
 760		}
 761		final String action = intent.getAction();
 762		if (action == null) {
 763			return false;
 764		}
 765		switch (action) {
 766			case Intent.ACTION_SENDTO:
 767			case Intent.ACTION_VIEW:
 768				Uri uri = intent.getData();
 769				if (uri != null) {
 770					Invite invite = new Invite(intent.getData(), intent.getBooleanExtra("scanned", false));
 771					invite.account = intent.getStringExtra("account");
 772					return invite.invite();
 773				} else {
 774					return false;
 775				}
 776		}
 777		return false;
 778	}
 779
 780	private boolean handleJid(Invite invite) {
 781		List<Contact> contacts = xmppConnectionService.findContacts(invite.getJid(), invite.account);
 782		if (invite.isAction(XmppUri.ACTION_JOIN)) {
 783			Conversation muc = xmppConnectionService.findFirstMuc(invite.getJid());
 784			if (muc != null) {
 785				switchToConversationDoNotAppend(muc, invite.getBody());
 786				return true;
 787			} else {
 788				showJoinConferenceDialog(invite.getJid().asBareJid().toString());
 789				return false;
 790			}
 791		} else if (contacts.size() == 0) {
 792			showCreateContactDialog(invite.getJid().toString(), invite);
 793			return false;
 794		} else if (contacts.size() == 1) {
 795			Contact contact = contacts.get(0);
 796			if (!invite.isSafeSource() && invite.hasFingerprints()) {
 797				displayVerificationWarningDialog(contact, invite);
 798			} else {
 799				if (invite.hasFingerprints()) {
 800					if (xmppConnectionService.verifyFingerprints(contact, invite.getFingerprints())) {
 801						Toast.makeText(this, R.string.verified_fingerprints, Toast.LENGTH_SHORT).show();
 802					}
 803				}
 804				if (invite.account != null) {
 805					xmppConnectionService.getShortcutService().report(contact);
 806				}
 807				switchToConversationDoNotAppend(contact, invite.getBody());
 808			}
 809			return true;
 810		} else {
 811			if (mMenuSearchView != null) {
 812				mMenuSearchView.expandActionView();
 813				mSearchEditText.setText("");
 814				mSearchEditText.append(invite.getJid().toString());
 815				filter(invite.getJid().toString());
 816			} else {
 817				mInitialSearchValue.push(invite.getJid().toString());
 818			}
 819			return true;
 820		}
 821	}
 822
 823	private void displayVerificationWarningDialog(final Contact contact, final Invite invite) {
 824		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 825		builder.setTitle(R.string.verify_omemo_keys);
 826		View view = getLayoutInflater().inflate(R.layout.dialog_verify_fingerprints, null);
 827		final CheckBox isTrustedSource = view.findViewById(R.id.trusted_source);
 828		TextView warning = view.findViewById(R.id.warning);
 829		warning.setText(JidDialog.style(this, R.string.verifying_omemo_keys_trusted_source, contact.getJid().asBareJid().toEscapedString(), contact.getDisplayName()));
 830		builder.setView(view);
 831		builder.setPositiveButton(R.string.confirm, (dialog, which) -> {
 832			if (isTrustedSource.isChecked() && invite.hasFingerprints()) {
 833				xmppConnectionService.verifyFingerprints(contact, invite.getFingerprints());
 834			}
 835			switchToConversationDoNotAppend(contact, invite.getBody());
 836		});
 837		builder.setNegativeButton(R.string.cancel, (dialog, which) -> StartConversationActivity.this.finish());
 838		AlertDialog dialog = builder.create();
 839		dialog.setCanceledOnTouchOutside(false);
 840		dialog.setOnCancelListener(dialog1 -> StartConversationActivity.this.finish());
 841		dialog.show();
 842	}
 843
 844	protected void filter(String needle) {
 845		if (xmppConnectionServiceBound) {
 846			this.filterContacts(needle);
 847			this.filterConferences(needle);
 848		}
 849	}
 850
 851	protected void filterContacts(String needle) {
 852		this.contacts.clear();
 853		final List<Account> accounts = xmppConnectionService.getAccounts();
 854		final boolean singleAccountActive = isSingleAccountActive(accounts);
 855		for (Account account : accounts) {
 856			if (account.getStatus() != Account.State.DISABLED) {
 857				for (Contact contact : account.getRoster().getContacts()) {
 858					Presence.Status s = contact.getShownStatus();
 859					if ((contact.showInRoster() || (singleAccountActive && contact.showInPhoneBook())) && contact.match(this, needle)
 860							&& (!this.mHideOfflineContacts
 861							|| (needle != null && !needle.trim().isEmpty())
 862							|| s.compareTo(Presence.Status.OFFLINE) < 0)) {
 863						this.contacts.add(contact);
 864					}
 865				}
 866			}
 867		}
 868		Collections.sort(this.contacts);
 869		mContactsAdapter.notifyDataSetChanged();
 870	}
 871
 872	private static boolean isSingleAccountActive(final List<Account> accounts) {
 873		int i = 0;
 874		for(Account account : accounts) {
 875			if (account.getStatus() != Account.State.DISABLED) {
 876				++i;
 877			}
 878		}
 879		return i == 1;
 880	}
 881
 882	protected void filterConferences(String needle) {
 883		this.conferences.clear();
 884		for (Account account : xmppConnectionService.getAccounts()) {
 885			if (account.getStatus() != Account.State.DISABLED) {
 886				for (Bookmark bookmark : account.getBookmarks()) {
 887					if (bookmark.match(this, needle)) {
 888						this.conferences.add(bookmark);
 889					}
 890				}
 891			}
 892		}
 893		Collections.sort(this.conferences);
 894		mConferenceAdapter.notifyDataSetChanged();
 895	}
 896
 897	private void onTabChanged() {
 898		@DrawableRes final int fabDrawable;
 899		if (binding.startConversationViewPager.getCurrentItem() == 0) {
 900			fabDrawable = R.drawable.ic_person_add_white_24dp;
 901		} else {
 902			fabDrawable = R.drawable.ic_group_add_white_24dp;
 903		}
 904		binding.fab.setImageResource(fabDrawable);
 905		invalidateOptionsMenu();
 906	}
 907
 908	@Override
 909	public void OnUpdateBlocklist(final Status status) {
 910		refreshUi();
 911	}
 912
 913	@Override
 914	protected void refreshUiReal() {
 915		if (mSearchEditText != null) {
 916			filter(mSearchEditText.getText().toString());
 917		}
 918		configureHomeButton();
 919	}
 920
 921	@Override
 922	public void onBackPressed() {
 923		navigateBack();
 924	}
 925
 926	private void navigateBack() {
 927		if (xmppConnectionService != null && !xmppConnectionService.isConversationsListEmpty(null)) {
 928			Intent intent = new Intent(this, ConversationsActivity.class);
 929			intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
 930			startActivity(intent);
 931		}
 932		finish();
 933	}
 934
 935	@Override
 936	public void onCreateDialogPositiveClick(Spinner spinner, String name) {
 937		if (!xmppConnectionServiceBound) {
 938			return;
 939		}
 940		final Account account = getSelectedAccount(spinner);
 941		if (account == null) {
 942			return;
 943		}
 944		Intent intent = new Intent(getApplicationContext(), ChooseContactActivity.class);
 945		intent.putExtra(ChooseContactActivity.EXTRA_SHOW_ENTER_JID, false);
 946		intent.putExtra(ChooseContactActivity.EXTRA_SELECT_MULTIPLE, true);
 947		intent.putExtra(ChooseContactActivity.EXTRA_GROUP_CHAT_NAME, name.trim());
 948		intent.putExtra(ChooseContactActivity.EXTRA_ACCOUNT, account.getJid().asBareJid().toString());
 949		intent.putExtra(ChooseContactActivity.EXTRA_TITLE_RES_ID, R.string.choose_participants);
 950		startActivityForResult(intent, REQUEST_CREATE_CONFERENCE);
 951	}
 952
 953	@Override
 954	public void onJoinDialogPositiveClick(Dialog dialog, Spinner spinner, AutoCompleteTextView jid, boolean isBookmarkChecked) {
 955		if (!xmppConnectionServiceBound) {
 956			return;
 957		}
 958		final Account account = getSelectedAccount(spinner);
 959		if (account == null) {
 960			return;
 961		}
 962		final Jid conferenceJid;
 963		try {
 964			conferenceJid = Jid.of(jid.getText().toString());
 965		} catch (final IllegalArgumentException e) {
 966			jid.setError(getString(R.string.invalid_jid));
 967			return;
 968		}
 969
 970		if (isBookmarkChecked) {
 971			if (account.hasBookmarkFor(conferenceJid)) {
 972				jid.setError(getString(R.string.bookmark_already_exists));
 973			} else {
 974				final Bookmark bookmark = new Bookmark(account, conferenceJid.asBareJid());
 975				bookmark.setAutojoin(getBooleanPreference("autojoin", R.bool.autojoin));
 976				String nick = conferenceJid.getResource();
 977				if (nick != null && !nick.isEmpty()) {
 978					bookmark.setNick(nick);
 979				}
 980				account.getBookmarks().add(bookmark);
 981				xmppConnectionService.pushBookmarks(account);
 982				final Conversation conversation = xmppConnectionService
 983						.findOrCreateConversation(account, conferenceJid, true, true, true);
 984				bookmark.setConversation(conversation);
 985				dialog.dismiss();
 986				switchToConversation(conversation);
 987			}
 988		} else {
 989			final Conversation conversation = xmppConnectionService
 990					.findOrCreateConversation(account, conferenceJid, true, true, true);
 991			dialog.dismiss();
 992			switchToConversation(conversation);
 993		}
 994	}
 995
 996	@Override
 997	public void onConversationUpdate() {
 998		refreshUi();
 999	}
1000
1001	public static class MyListFragment extends ListFragment {
1002		private AdapterView.OnItemClickListener mOnItemClickListener;
1003		private int mResContextMenu;
1004
1005		public void setContextMenu(final int res) {
1006			this.mResContextMenu = res;
1007		}
1008
1009		@Override
1010		public void onListItemClick(final ListView l, final View v, final int position, final long id) {
1011			if (mOnItemClickListener != null) {
1012				mOnItemClickListener.onItemClick(l, v, position, id);
1013			}
1014		}
1015
1016		public void setOnListItemClickListener(AdapterView.OnItemClickListener l) {
1017			this.mOnItemClickListener = l;
1018		}
1019
1020		@Override
1021		public void onViewCreated(@NonNull final View view, final Bundle savedInstanceState) {
1022			super.onViewCreated(view, savedInstanceState);
1023			registerForContextMenu(getListView());
1024			getListView().setFastScrollEnabled(true);
1025			getListView().setDivider(null);
1026			getListView().setDividerHeight(0);
1027		}
1028
1029		@Override
1030		public void onCreateContextMenu(final ContextMenu menu, final View v, final ContextMenuInfo menuInfo) {
1031			super.onCreateContextMenu(menu, v, menuInfo);
1032			final StartConversationActivity activity = (StartConversationActivity) getActivity();
1033			if (activity == null) {
1034				return;
1035			}
1036			activity.getMenuInflater().inflate(mResContextMenu, menu);
1037			final AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
1038			if (mResContextMenu == R.menu.conference_context) {
1039				activity.conference_context_id = acmi.position;
1040			} else if (mResContextMenu == R.menu.contact_context) {
1041				activity.contact_context_id = acmi.position;
1042				final Contact contact = (Contact) activity.contacts.get(acmi.position);
1043				final MenuItem blockUnblockItem = menu.findItem(R.id.context_contact_block_unblock);
1044				final MenuItem showContactDetailsItem = menu.findItem(R.id.context_contact_details);
1045				final MenuItem deleteContactMenuItem = menu.findItem(R.id.context_delete_contact);
1046				if (contact.isSelf()) {
1047					showContactDetailsItem.setVisible(false);
1048				}
1049				deleteContactMenuItem.setVisible(contact.showInRoster());
1050				XmppConnection xmpp = contact.getAccount().getXmppConnection();
1051				if (xmpp != null && xmpp.getFeatures().blocking() && !contact.isSelf()) {
1052					if (contact.isBlocked()) {
1053						blockUnblockItem.setTitle(R.string.unblock_contact);
1054					} else {
1055						blockUnblockItem.setTitle(R.string.block_contact);
1056					}
1057				} else {
1058					blockUnblockItem.setVisible(false);
1059				}
1060			}
1061		}
1062
1063		@Override
1064		public boolean onContextItemSelected(final MenuItem item) {
1065			StartConversationActivity activity = (StartConversationActivity) getActivity();
1066			if (activity == null) {
1067				return true;
1068			}
1069			switch (item.getItemId()) {
1070				case R.id.context_contact_details:
1071					activity.openDetailsForContact();
1072					break;
1073				case R.id.context_show_qr:
1074					activity.showQrForContact();
1075					break;
1076				case R.id.context_contact_block_unblock:
1077					activity.toggleContactBlock();
1078					break;
1079				case R.id.context_delete_contact:
1080					activity.deleteContact();
1081					break;
1082				case R.id.context_join_conference:
1083					activity.openConversationForBookmark();
1084					break;
1085				case R.id.context_share_uri:
1086					activity.shareBookmarkUri();
1087					break;
1088				case R.id.context_delete_conference:
1089					activity.deleteConference();
1090			}
1091			return true;
1092		}
1093	}
1094
1095	public class ListPagerAdapter extends PagerAdapter {
1096		FragmentManager fragmentManager;
1097		MyListFragment[] fragments;
1098
1099		public ListPagerAdapter(FragmentManager fm) {
1100			fragmentManager = fm;
1101			fragments = new MyListFragment[2];
1102		}
1103
1104		public void requestFocus(int pos) {
1105			if (fragments.length > pos) {
1106				fragments[pos].getListView().requestFocus();
1107			}
1108		}
1109
1110		@Override
1111		public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {
1112			FragmentTransaction trans = fragmentManager.beginTransaction();
1113			trans.remove(fragments[position]);
1114			trans.commit();
1115			fragments[position] = null;
1116		}
1117
1118		@NonNull
1119		@Override
1120		public Fragment instantiateItem(@NonNull ViewGroup container, int position) {
1121			Fragment fragment = getItem(position);
1122			FragmentTransaction trans = fragmentManager.beginTransaction();
1123			trans.add(container.getId(), fragment, "fragment:" + position);
1124			trans.commit();
1125			return fragment;
1126		}
1127
1128		@Override
1129		public int getCount() {
1130			return fragments.length;
1131		}
1132
1133		@Override
1134		public boolean isViewFromObject(@NonNull View view, @NonNull Object fragment) {
1135			return ((Fragment) fragment).getView() == view;
1136		}
1137
1138		@Nullable
1139		@Override
1140		public CharSequence getPageTitle(int position) {
1141			switch (position) {
1142				case 0:
1143					return getResources().getString(R.string.contacts);
1144				case 1:
1145					return getResources().getString(R.string.conferences);
1146				default:
1147					return super.getPageTitle(position);
1148			}
1149		}
1150
1151		Fragment getItem(int position) {
1152			if (fragments[position] == null) {
1153				final MyListFragment listFragment = new MyListFragment();
1154				if (position == 1) {
1155					listFragment.setListAdapter(mConferenceAdapter);
1156					listFragment.setContextMenu(R.menu.conference_context);
1157					listFragment.setOnListItemClickListener((arg0, arg1, p, arg3) -> openConversationForBookmark(p));
1158				} else {
1159
1160					listFragment.setListAdapter(mContactsAdapter);
1161					listFragment.setContextMenu(R.menu.contact_context);
1162					listFragment.setOnListItemClickListener((arg0, arg1, p, arg3) -> openConversationForContact(p));
1163				}
1164				fragments[position] = listFragment;
1165			}
1166			return fragments[position];
1167		}
1168	}
1169
1170	public static void addInviteUri(Intent to, Intent from) {
1171		if (from != null && from.hasExtra(EXTRA_INVITE_URI)) {
1172			to.putExtra(EXTRA_INVITE_URI, from.getStringExtra(EXTRA_INVITE_URI));
1173		}
1174	}
1175
1176	private class Invite extends XmppUri {
1177
1178		public String account;
1179
1180		public Invite(final Uri uri) {
1181			super(uri);
1182		}
1183
1184		public Invite(final String uri) {
1185			super(uri);
1186		}
1187
1188		public Invite(Uri uri, boolean safeSource) {
1189			super(uri, safeSource);
1190		}
1191
1192		boolean invite() {
1193			if (!isJidValid()) {
1194				Toast.makeText(StartConversationActivity.this, R.string.invalid_jid, Toast.LENGTH_SHORT).show();
1195				return false;
1196			}
1197			if (getJid() != null) {
1198				return handleJid(this);
1199			}
1200			return false;
1201		}
1202	}
1203}