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.DialogInterface;
  10import android.content.Intent;
  11import android.content.SharedPreferences;
  12import android.content.pm.PackageManager;
  13import android.databinding.DataBindingUtil;
  14import android.net.Uri;
  15import android.os.Build;
  16import android.os.Bundle;
  17import android.support.annotation.DrawableRes;
  18import android.support.annotation.NonNull;
  19import android.support.annotation.Nullable;
  20import android.support.v4.app.Fragment;
  21import android.support.v4.app.FragmentManager;
  22import android.support.v4.app.FragmentTransaction;
  23import android.support.v4.app.ListFragment;
  24import android.support.v4.view.PagerAdapter;
  25import android.support.v4.view.ViewPager;
  26import android.support.v4.widget.SwipeRefreshLayout;
  27import android.support.v7.app.ActionBar;
  28import android.support.v7.app.AlertDialog;
  29import android.support.v7.widget.Toolbar;
  30import android.text.Editable;
  31import android.text.Html;
  32import android.text.SpannableString;
  33import android.text.Spanned;
  34import android.text.TextWatcher;
  35import android.text.method.LinkMovementMethod;
  36import android.text.util.Linkify;
  37import android.util.Log;
  38import android.util.Pair;
  39import android.view.ContextMenu;
  40import android.view.ContextMenu.ContextMenuInfo;
  41import android.view.KeyEvent;
  42import android.view.Menu;
  43import android.view.MenuItem;
  44import android.view.View;
  45import android.view.ViewGroup;
  46import android.view.inputmethod.InputMethodManager;
  47import android.widget.AdapterView;
  48import android.widget.AdapterView.AdapterContextMenuInfo;
  49import android.widget.ArrayAdapter;
  50import android.widget.AutoCompleteTextView;
  51import android.widget.CheckBox;
  52import android.widget.EditText;
  53import android.widget.ListView;
  54import android.widget.Spinner;
  55import android.widget.TextView;
  56import android.widget.Toast;
  57
  58import java.util.ArrayList;
  59import java.util.Collections;
  60import java.util.List;
  61import java.util.concurrent.atomic.AtomicBoolean;
  62
  63import eu.siacs.conversations.Config;
  64import eu.siacs.conversations.R;
  65import eu.siacs.conversations.databinding.ActivityStartConversationBinding;
  66import eu.siacs.conversations.entities.Account;
  67import eu.siacs.conversations.entities.Bookmark;
  68import eu.siacs.conversations.entities.Contact;
  69import eu.siacs.conversations.entities.Conversation;
  70import eu.siacs.conversations.entities.ListItem;
  71import eu.siacs.conversations.entities.Presence;
  72import eu.siacs.conversations.services.QuickConversationsService;
  73import eu.siacs.conversations.services.XmppConnectionService;
  74import eu.siacs.conversations.services.XmppConnectionService.OnRosterUpdate;
  75import eu.siacs.conversations.ui.adapter.ListItemAdapter;
  76import eu.siacs.conversations.ui.interfaces.OnBackendConnected;
  77import eu.siacs.conversations.ui.service.EmojiService;
  78import eu.siacs.conversations.ui.util.JidDialog;
  79import eu.siacs.conversations.ui.util.MenuDoubleTabUtil;
  80import eu.siacs.conversations.ui.util.PendingItem;
  81import eu.siacs.conversations.ui.util.SoftKeyboardUtils;
  82import eu.siacs.conversations.ui.widget.SwipeRefreshListFragment;
  83import eu.siacs.conversations.utils.AccountUtils;
  84import eu.siacs.conversations.utils.XmppUri;
  85import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
  86import eu.siacs.conversations.xmpp.XmppConnection;
  87import rocks.xmpp.addr.Jid;
  88
  89public class StartConversationActivity extends XmppActivity implements XmppConnectionService.OnConversationUpdate, OnRosterUpdate, OnUpdateBlocklist, CreateConferenceDialog.CreateConferenceDialogListener, JoinConferenceDialog.JoinConferenceDialogListener, SwipeRefreshLayout.OnRefreshListener {
  90
  91	public static final String EXTRA_INVITE_URI = "eu.siacs.conversations.invite_uri";
  92
  93	private final int REQUEST_SYNC_CONTACTS = 0x28cf;
  94	private final int REQUEST_CREATE_CONFERENCE = 0x39da;
  95	private final PendingItem<Intent> pendingViewIntent = new PendingItem<>();
  96	private final PendingItem<String> mInitialSearchValue = new PendingItem<>();
  97	private final AtomicBoolean oneShotKeyboardSuppress = new AtomicBoolean();
  98	public int conference_context_id;
  99	public int contact_context_id;
 100	private ListPagerAdapter mListPagerAdapter;
 101	private List<ListItem> contacts = new ArrayList<>();
 102	private ListItemAdapter mContactsAdapter;
 103	private List<ListItem> conferences = new ArrayList<>();
 104	private ListItemAdapter mConferenceAdapter;
 105	private List<String> mActivatedAccounts = new ArrayList<>();
 106	private EditText mSearchEditText;
 107	private AtomicBoolean mRequestedContactsPermission = new AtomicBoolean(false);
 108	private boolean mHideOfflineContacts = false;
 109	private boolean createdByViewIntent = false;
 110	private MenuItem.OnActionExpandListener mOnActionExpandListener = new MenuItem.OnActionExpandListener() {
 111
 112		@Override
 113		public boolean onMenuItemActionExpand(MenuItem item) {
 114			mSearchEditText.post(() -> {
 115				updateSearchViewHint();
 116				mSearchEditText.requestFocus();
 117				if (oneShotKeyboardSuppress.compareAndSet(true, false)) {
 118					return;
 119				}
 120				InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
 121				if (imm != null) {
 122					imm.showSoftInput(mSearchEditText, InputMethodManager.SHOW_IMPLICIT);
 123				}
 124			});
 125
 126			return true;
 127		}
 128
 129		@Override
 130		public boolean onMenuItemActionCollapse(MenuItem item) {
 131			SoftKeyboardUtils.hideSoftKeyboard(StartConversationActivity.this);
 132			mSearchEditText.setText("");
 133			filter(null);
 134			return true;
 135		}
 136	};
 137	private TextWatcher mSearchTextWatcher = new TextWatcher() {
 138
 139		@Override
 140		public void afterTextChanged(Editable editable) {
 141			filter(editable.toString());
 142		}
 143
 144		@Override
 145		public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 146		}
 147
 148		@Override
 149		public void onTextChanged(CharSequence s, int start, int before, int count) {
 150		}
 151	};
 152	private MenuItem mMenuSearchView;
 153	private ListItemAdapter.OnTagClickedListener mOnTagClickedListener = new ListItemAdapter.OnTagClickedListener() {
 154		@Override
 155		public void onTagClicked(String tag) {
 156			if (mMenuSearchView != null) {
 157				mMenuSearchView.expandActionView();
 158				mSearchEditText.setText("");
 159				mSearchEditText.append(tag);
 160				filter(tag);
 161			}
 162		}
 163	};
 164	private Pair<Integer, Intent> mPostponedActivityResult;
 165	private Toast mToast;
 166	private UiCallback<Conversation> mAdhocConferenceCallback = new UiCallback<Conversation>() {
 167		@Override
 168		public void success(final Conversation conversation) {
 169			runOnUiThread(() -> {
 170				hideToast();
 171				switchToConversation(conversation);
 172			});
 173		}
 174
 175		@Override
 176		public void error(final int errorCode, Conversation object) {
 177			runOnUiThread(() -> replaceToast(getString(errorCode)));
 178		}
 179
 180		@Override
 181		public void userInputRequried(PendingIntent pi, Conversation object) {
 182
 183		}
 184	};
 185	private ActivityStartConversationBinding binding;
 186	private TextView.OnEditorActionListener mSearchDone = new TextView.OnEditorActionListener() {
 187		@Override
 188		public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
 189			int pos = binding.startConversationViewPager.getCurrentItem();
 190			if (pos == 0) {
 191				if (contacts.size() == 1) {
 192					openConversationForContact((Contact) contacts.get(0));
 193					return true;
 194				} else if (contacts.size() == 0 && conferences.size() == 1) {
 195					openConversationsForBookmark((Bookmark) conferences.get(0));
 196					return true;
 197				}
 198			} else {
 199				if (conferences.size() == 1) {
 200					openConversationsForBookmark((Bookmark) conferences.get(0));
 201					return true;
 202				} else if (conferences.size() == 0 && contacts.size() == 1) {
 203					openConversationForContact((Contact) contacts.get(0));
 204					return true;
 205				}
 206			}
 207			SoftKeyboardUtils.hideSoftKeyboard(StartConversationActivity.this);
 208			mListPagerAdapter.requestFocus(pos);
 209			return true;
 210		}
 211	};
 212	private ViewPager.SimpleOnPageChangeListener mOnPageChangeListener = new ViewPager.SimpleOnPageChangeListener() {
 213		@Override
 214		public void onPageSelected(int position) {
 215			onTabChanged();
 216		}
 217	};
 218
 219	public static void populateAccountSpinner(Context context, List<String> accounts, Spinner spinner) {
 220		if (accounts.size() > 0) {
 221			ArrayAdapter<String> adapter = new ArrayAdapter<>(context, R.layout.simple_list_item, accounts);
 222			adapter.setDropDownViewResource(R.layout.simple_list_item);
 223			spinner.setAdapter(adapter);
 224			spinner.setEnabled(true);
 225		} else {
 226			ArrayAdapter<String> adapter = new ArrayAdapter<>(context,
 227					R.layout.simple_list_item,
 228					Collections.singletonList(context.getString(R.string.no_accounts)));
 229			adapter.setDropDownViewResource(R.layout.simple_list_item);
 230			spinner.setAdapter(adapter);
 231			spinner.setEnabled(false);
 232		}
 233	}
 234
 235	public static void launch(Context context) {
 236		final Intent intent = new Intent(context, StartConversationActivity.class);
 237		context.startActivity(intent);
 238	}
 239
 240	private static Intent createLauncherIntent(Context context) {
 241		final Intent intent = new Intent(context, StartConversationActivity.class);
 242		intent.setAction(Intent.ACTION_MAIN);
 243		intent.addCategory(Intent.CATEGORY_LAUNCHER);
 244		return intent;
 245	}
 246
 247	private static boolean isViewIntent(final Intent i) {
 248		return i != null && (Intent.ACTION_VIEW.equals(i.getAction()) || Intent.ACTION_SENDTO.equals(i.getAction()) || i.hasExtra(EXTRA_INVITE_URI));
 249	}
 250
 251	protected void hideToast() {
 252		if (mToast != null) {
 253			mToast.cancel();
 254		}
 255	}
 256
 257	protected void replaceToast(String msg) {
 258		hideToast();
 259		mToast = Toast.makeText(this, msg, Toast.LENGTH_LONG);
 260		mToast.show();
 261	}
 262
 263	@Override
 264	public void onRosterUpdate() {
 265		this.refreshUi();
 266	}
 267
 268	@Override
 269	public void onCreate(Bundle savedInstanceState) {
 270		super.onCreate(savedInstanceState);
 271		new EmojiService(this).init();
 272		this.binding = DataBindingUtil.setContentView(this, R.layout.activity_start_conversation);
 273		Toolbar toolbar = (Toolbar) binding.toolbar;
 274		setSupportActionBar(toolbar);
 275		configureActionBar(getSupportActionBar());
 276		this.binding.fab.setOnClickListener((v) -> {
 277			if (binding.startConversationViewPager.getCurrentItem() == 0) {
 278				String searchString = mSearchEditText != null ? mSearchEditText.getText().toString() : null;
 279				if (searchString != null && !searchString.trim().isEmpty()) {
 280					try {
 281						Jid jid = Jid.of(searchString);
 282						if (jid.getLocal() != null && jid.isBareJid() && jid.getDomain().contains(".")) {
 283							showCreateContactDialog(jid.toString(), null);
 284							return;
 285						}
 286					} catch (IllegalArgumentException ignored) {
 287						//ignore and fall through
 288					}
 289				}
 290				showCreateContactDialog(null, null);
 291			} else {
 292				showCreateConferenceDialog();
 293			}
 294		});
 295		binding.tabLayout.setupWithViewPager(binding.startConversationViewPager);
 296		binding.startConversationViewPager.addOnPageChangeListener(mOnPageChangeListener);
 297		mListPagerAdapter = new ListPagerAdapter(getSupportFragmentManager());
 298		binding.startConversationViewPager.setAdapter(mListPagerAdapter);
 299
 300		mConferenceAdapter = new ListItemAdapter(this, conferences);
 301		mContactsAdapter = new ListItemAdapter(this, contacts);
 302		mContactsAdapter.setOnTagClickedListener(this.mOnTagClickedListener);
 303
 304		final SharedPreferences preferences = getPreferences();
 305
 306		this.mHideOfflineContacts = QuickConversationsService.isConversations() && preferences.getBoolean("hide_offline", false);
 307
 308		final boolean startSearching = preferences.getBoolean("start_searching",getResources().getBoolean(R.bool.start_searching));
 309
 310		final Intent intent;
 311		if (savedInstanceState == null) {
 312			intent = getIntent();
 313		} else {
 314			createdByViewIntent = savedInstanceState.getBoolean("created_by_view_intent", false);
 315			final String search = savedInstanceState.getString("search");
 316			if (search != null) {
 317				mInitialSearchValue.push(search);
 318			}
 319			intent = savedInstanceState.getParcelable("intent");
 320		}
 321
 322		if (isViewIntent(intent)) {
 323			pendingViewIntent.push(intent);
 324			createdByViewIntent = true;
 325			setIntent(createLauncherIntent(this));
 326		} else if (startSearching && mInitialSearchValue.peek() == null) {
 327			mInitialSearchValue.push("");
 328		}
 329		mRequestedContactsPermission.set(savedInstanceState != null && savedInstanceState.getBoolean("requested_contacts_permission",false));
 330	}
 331
 332	@Override
 333	public void onSaveInstanceState(Bundle savedInstanceState) {
 334		Intent pendingIntent = pendingViewIntent.peek();
 335		savedInstanceState.putParcelable("intent", pendingIntent != null ? pendingIntent : getIntent());
 336		savedInstanceState.putBoolean("requested_contacts_permission",mRequestedContactsPermission.get());
 337		savedInstanceState.putBoolean("created_by_view_intent",createdByViewIntent);
 338		if (mMenuSearchView != null && mMenuSearchView.isActionViewExpanded()) {
 339			savedInstanceState.putString("search", mSearchEditText != null ? mSearchEditText.getText().toString() : null);
 340		}
 341		super.onSaveInstanceState(savedInstanceState);
 342	}
 343
 344	@Override
 345	public void onStart() {
 346		super.onStart();
 347		final int theme = findTheme();
 348		if (this.mTheme != theme) {
 349			recreate();
 350		} else {
 351			if (pendingViewIntent.peek() == null) {
 352				askForContactsPermissions();
 353			}
 354		}
 355		mConferenceAdapter.refreshSettings();
 356		mContactsAdapter.refreshSettings();
 357	}
 358
 359	@Override
 360	public void onNewIntent(final Intent intent) {
 361		if (xmppConnectionServiceBound) {
 362			processViewIntent(intent);
 363		} else {
 364			pendingViewIntent.push(intent);
 365		}
 366		setIntent(createLauncherIntent(this));
 367	}
 368
 369	protected void openConversationForContact(int position) {
 370		Contact contact = (Contact) contacts.get(position);
 371		openConversationForContact(contact);
 372	}
 373
 374	protected void openConversationForContact(Contact contact) {
 375		Conversation conversation = xmppConnectionService.findOrCreateConversation(contact.getAccount(), contact.getJid(), false, true);
 376		SoftKeyboardUtils.hideSoftKeyboard(this);
 377		switchToConversation(conversation);
 378	}
 379
 380	protected void openConversationForBookmark() {
 381		openConversationForBookmark(conference_context_id);
 382	}
 383
 384	protected void openConversationForBookmark(int position) {
 385		Bookmark bookmark = (Bookmark) conferences.get(position);
 386		openConversationsForBookmark(bookmark);
 387	}
 388
 389	protected void shareBookmarkUri() {
 390		shareBookmarkUri(conference_context_id);
 391	}
 392
 393	protected void shareBookmarkUri(int position) {
 394		Bookmark bookmark = (Bookmark) conferences.get(position);
 395		Intent shareIntent = new Intent();
 396		shareIntent.setAction(Intent.ACTION_SEND);
 397		shareIntent.putExtra(Intent.EXTRA_TEXT, "xmpp:" + bookmark.getJid().asBareJid().toEscapedString() + "?join");
 398		shareIntent.setType("text/plain");
 399		try {
 400			startActivity(Intent.createChooser(shareIntent, getText(R.string.share_uri_with)));
 401		} catch (ActivityNotFoundException e) {
 402			Toast.makeText(this, R.string.no_application_to_share_uri, Toast.LENGTH_SHORT).show();
 403		}
 404	}
 405
 406	protected void openConversationsForBookmark(Bookmark bookmark) {
 407		final Jid jid = bookmark.getFullJid();
 408		if (jid == null) {
 409			Toast.makeText(this, R.string.invalid_jid, Toast.LENGTH_SHORT).show();
 410			return;
 411		}
 412		Conversation conversation = xmppConnectionService.findOrCreateConversation(bookmark.getAccount(), jid, true, true, true);
 413		bookmark.setConversation(conversation);
 414		if (!bookmark.autojoin() && getPreferences().getBoolean("autojoin", getResources().getBoolean(R.bool.autojoin))) {
 415			bookmark.setAutojoin(true);
 416			xmppConnectionService.pushBookmarks(bookmark.getAccount());
 417		}
 418		SoftKeyboardUtils.hideSoftKeyboard(this);
 419		switchToConversation(conversation);
 420	}
 421
 422	protected void openDetailsForContact() {
 423		int position = contact_context_id;
 424		Contact contact = (Contact) contacts.get(position);
 425		switchToContactDetails(contact);
 426	}
 427
 428	protected void showQrForContact() {
 429		int position = contact_context_id;
 430		Contact contact = (Contact) contacts.get(position);
 431		showQrCode("xmpp:"+contact.getJid().asBareJid().toEscapedString());
 432	}
 433
 434	protected void toggleContactBlock() {
 435		final int position = contact_context_id;
 436		BlockContactDialog.show(this, (Contact) contacts.get(position));
 437	}
 438
 439	protected void deleteContact() {
 440		final int position = contact_context_id;
 441		final Contact contact = (Contact) contacts.get(position);
 442		final AlertDialog.Builder builder = new AlertDialog.Builder(this);
 443		builder.setNegativeButton(R.string.cancel, null);
 444		builder.setTitle(R.string.action_delete_contact);
 445		builder.setMessage(JidDialog.style(this, R.string.remove_contact_text, contact.getJid().toEscapedString()));
 446		builder.setPositiveButton(R.string.delete, (dialog, which) -> {
 447			xmppConnectionService.deleteContactOnServer(contact);
 448			filter(mSearchEditText.getText().toString());
 449		});
 450		builder.create().show();
 451	}
 452
 453	protected void deleteConference() {
 454		int position = conference_context_id;
 455		final Bookmark bookmark = (Bookmark) conferences.get(position);
 456
 457		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 458		builder.setNegativeButton(R.string.cancel, null);
 459		builder.setTitle(R.string.delete_bookmark);
 460		builder.setMessage(JidDialog.style(this, R.string.remove_bookmark_text, bookmark.getJid().toEscapedString()));
 461		builder.setPositiveButton(R.string.delete, (dialog, which) -> {
 462			bookmark.setConversation(null);
 463			Account account = bookmark.getAccount();
 464			account.getBookmarks().remove(bookmark);
 465			xmppConnectionService.pushBookmarks(account);
 466			filter(mSearchEditText.getText().toString());
 467		});
 468		builder.create().show();
 469
 470	}
 471
 472	@SuppressLint("InflateParams")
 473	protected void showCreateContactDialog(final String prefilledJid, final Invite invite) {
 474		FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
 475		Fragment prev = getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAG_DIALOG);
 476		if (prev != null) {
 477			ft.remove(prev);
 478		}
 479		ft.addToBackStack(null);
 480		EnterJidDialog dialog = EnterJidDialog.newInstance(
 481				mActivatedAccounts,
 482				getString(R.string.dialog_title_create_contact),
 483				getString(R.string.create),
 484				prefilledJid,
 485				null,
 486				invite == null || !invite.hasFingerprints()
 487		);
 488
 489		dialog.setOnEnterJidDialogPositiveListener((accountJid, contactJid) -> {
 490			if (!xmppConnectionServiceBound) {
 491				return false;
 492			}
 493
 494			final Account account = xmppConnectionService.findAccountByJid(accountJid);
 495			if (account == null) {
 496				return true;
 497			}
 498
 499			final Contact contact = account.getRoster().getContact(contactJid);
 500			if (invite != null && invite.getName() != null) {
 501				contact.setServerName(invite.getName());
 502			}
 503			if (contact.isSelf()) {
 504				switchToConversation(contact);
 505				return true;
 506			} else if (contact.showInRoster()) {
 507				throw new EnterJidDialog.JidError(getString(R.string.contact_already_exists));
 508			} else {
 509				xmppConnectionService.createContact(contact, true);
 510				if (invite != null && invite.hasFingerprints()) {
 511					xmppConnectionService.verifyFingerprints(contact, invite.getFingerprints());
 512				}
 513				switchToConversationDoNotAppend(contact, invite == null ? null : invite.getBody());
 514				return true;
 515			}
 516		});
 517		dialog.show(ft, FRAGMENT_TAG_DIALOG);
 518	}
 519
 520	@SuppressLint("InflateParams")
 521	protected void showJoinConferenceDialog(final String prefilledJid) {
 522		FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
 523		Fragment prev = getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAG_DIALOG);
 524		if (prev != null) {
 525			ft.remove(prev);
 526		}
 527		ft.addToBackStack(null);
 528		JoinConferenceDialog joinConferenceFragment = JoinConferenceDialog.newInstance(prefilledJid, mActivatedAccounts);
 529		joinConferenceFragment.show(ft, FRAGMENT_TAG_DIALOG);
 530	}
 531
 532	private void showCreateConferenceDialog() {
 533		FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
 534		Fragment prev = getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAG_DIALOG);
 535		if (prev != null) {
 536			ft.remove(prev);
 537		}
 538		ft.addToBackStack(null);
 539		CreateConferenceDialog createConferenceFragment = CreateConferenceDialog.newInstance(mActivatedAccounts);
 540		createConferenceFragment.show(ft, FRAGMENT_TAG_DIALOG);
 541	}
 542
 543	private Account getSelectedAccount(Spinner spinner) {
 544		if (!spinner.isEnabled()) {
 545			return null;
 546		}
 547		Jid jid;
 548		try {
 549			if (Config.DOMAIN_LOCK != null) {
 550				jid = Jid.of((String) spinner.getSelectedItem(), Config.DOMAIN_LOCK, null);
 551			} else {
 552				jid = Jid.of((String) spinner.getSelectedItem());
 553			}
 554		} catch (final IllegalArgumentException e) {
 555			return null;
 556		}
 557		return xmppConnectionService.findAccountByJid(jid);
 558	}
 559
 560	protected void switchToConversation(Contact contact) {
 561		Conversation conversation = xmppConnectionService.findOrCreateConversation(contact.getAccount(), contact.getJid(), false, true);
 562		switchToConversation(conversation);
 563	}
 564
 565	protected void switchToConversationDoNotAppend(Contact contact, String body) {
 566		Conversation conversation = xmppConnectionService.findOrCreateConversation(contact.getAccount(), contact.getJid(), false, true);
 567		switchToConversationDoNotAppend(conversation, body);
 568	}
 569
 570	@Override
 571	public void invalidateOptionsMenu() {
 572		boolean isExpanded = mMenuSearchView != null && mMenuSearchView.isActionViewExpanded();
 573		String text = mSearchEditText != null ? mSearchEditText.getText().toString() : "";
 574		if (isExpanded) {
 575			mInitialSearchValue.push(text);
 576			oneShotKeyboardSuppress.set(true);
 577		}
 578		super.invalidateOptionsMenu();
 579	}
 580
 581	private void updateSearchViewHint() {
 582		if (binding == null || mSearchEditText == null) {
 583			return;
 584		}
 585		if (binding.startConversationViewPager.getCurrentItem() == 0) {
 586			mSearchEditText.setHint(R.string.search_contacts);
 587		} else {
 588			mSearchEditText.setHint(R.string.search_groups);
 589		}
 590	}
 591
 592	@Override
 593	public boolean onCreateOptionsMenu(Menu menu) {
 594		getMenuInflater().inflate(R.menu.start_conversation, menu);
 595		AccountUtils.showHideMenuItems(menu);
 596		MenuItem menuHideOffline = menu.findItem(R.id.action_hide_offline);
 597		MenuItem joinGroupChat = menu.findItem(R.id.action_join_conference);
 598		MenuItem qrCodeScanMenuItem = menu.findItem(R.id.action_scan_qr_code);
 599		joinGroupChat.setVisible(binding.startConversationViewPager.getCurrentItem() == 1);
 600		qrCodeScanMenuItem.setVisible(isCameraFeatureAvailable());
 601		if (QuickConversationsService.isQuicksy()) {
 602			menuHideOffline.setVisible(false);
 603		} else {
 604			menuHideOffline.setVisible(true);
 605			menuHideOffline.setChecked(this.mHideOfflineContacts);
 606		}
 607		mMenuSearchView = menu.findItem(R.id.action_search);
 608		mMenuSearchView.setOnActionExpandListener(mOnActionExpandListener);
 609		View mSearchView = mMenuSearchView.getActionView();
 610		mSearchEditText = mSearchView.findViewById(R.id.search_field);
 611		mSearchEditText.addTextChangedListener(mSearchTextWatcher);
 612		mSearchEditText.setOnEditorActionListener(mSearchDone);
 613		String initialSearchValue = mInitialSearchValue.pop();
 614		if (initialSearchValue != null) {
 615			mMenuSearchView.expandActionView();
 616			mSearchEditText.append(initialSearchValue);
 617			filter(initialSearchValue);
 618		}
 619		updateSearchViewHint();
 620		return super.onCreateOptionsMenu(menu);
 621	}
 622
 623	@Override
 624	public boolean onOptionsItemSelected(MenuItem item) {
 625		if (MenuDoubleTabUtil.shouldIgnoreTap()) {
 626			return false;
 627		}
 628		switch (item.getItemId()) {
 629			case android.R.id.home:
 630				navigateBack();
 631				return true;
 632			case R.id.action_join_conference:
 633				showJoinConferenceDialog(null);
 634				return true;
 635			case R.id.action_scan_qr_code:
 636				UriHandlerActivity.scan(this);
 637				return true;
 638			case R.id.action_hide_offline:
 639				mHideOfflineContacts = !item.isChecked();
 640				getPreferences().edit().putBoolean("hide_offline", mHideOfflineContacts).apply();
 641				if (mSearchEditText != null) {
 642					filter(mSearchEditText.getText().toString());
 643				}
 644				invalidateOptionsMenu();
 645		}
 646		return super.onOptionsItemSelected(item);
 647	}
 648
 649	@Override
 650	public boolean onKeyUp(int keyCode, KeyEvent event) {
 651		if (keyCode == KeyEvent.KEYCODE_SEARCH && !event.isLongPress()) {
 652			openSearch();
 653			return true;
 654		}
 655		int c = event.getUnicodeChar();
 656		if (c > 32) {
 657			if (mSearchEditText != null && !mSearchEditText.isFocused()) {
 658				openSearch();
 659				mSearchEditText.append(Character.toString((char) c));
 660				return true;
 661			}
 662		}
 663		return super.onKeyUp(keyCode, event);
 664	}
 665
 666	private void openSearch() {
 667		if (mMenuSearchView != null) {
 668			mMenuSearchView.expandActionView();
 669		}
 670	}
 671
 672	@Override
 673	public void onActivityResult(int requestCode, int resultCode, Intent intent) {
 674		if (resultCode == RESULT_OK) {
 675			if (xmppConnectionServiceBound) {
 676				this.mPostponedActivityResult = null;
 677				if (requestCode == REQUEST_CREATE_CONFERENCE) {
 678					Account account = extractAccount(intent);
 679					final String name = intent.getStringExtra(ChooseContactActivity.EXTRA_GROUP_CHAT_NAME);
 680					final List<Jid> jids = ChooseContactActivity.extractJabberIds(intent);
 681					if (account != null && jids.size() > 0) {
 682						if (xmppConnectionService.createAdhocConference(account, name, jids, mAdhocConferenceCallback)) {
 683							mToast = Toast.makeText(this, R.string.creating_conference, Toast.LENGTH_LONG);
 684							mToast.show();
 685						}
 686					}
 687				}
 688			} else {
 689				this.mPostponedActivityResult = new Pair<>(requestCode, intent);
 690			}
 691		}
 692		super.onActivityResult(requestCode, requestCode, intent);
 693	}
 694
 695	private void askForContactsPermissions() {
 696		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 697			if (checkSelfPermission(Manifest.permission.READ_CONTACTS) != PackageManager.PERMISSION_GRANTED) {
 698				if (mRequestedContactsPermission.compareAndSet(false, true)) {
 699					if (shouldShowRequestPermissionRationale(Manifest.permission.READ_CONTACTS)) {
 700						AlertDialog.Builder builder = new AlertDialog.Builder(this);
 701						builder.setTitle(R.string.sync_with_contacts);
 702						if (QuickConversationsService.isQuicksy()) {
 703							builder.setMessage(Html.fromHtml(getString(R.string.sync_with_contacts_quicksy)));
 704                        } else {
 705                            builder.setMessage(R.string.sync_with_contacts_long);
 706                        }
 707						builder.setPositiveButton(R.string.next, (dialog, which) -> requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, REQUEST_SYNC_CONTACTS));
 708						builder.setOnDismissListener(dialog -> requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, REQUEST_SYNC_CONTACTS));
 709						builder.setCancelable(false);
 710						AlertDialog dialog = builder.create();
 711						dialog.setCanceledOnTouchOutside(false);
 712						dialog.setOnShowListener(dialogInterface -> {
 713							final TextView tv =  dialog.findViewById(android.R.id.message);
 714							if (tv != null) {
 715								tv.setMovementMethod(LinkMovementMethod.getInstance());
 716							}
 717						});
 718						dialog.show();
 719					} else {
 720						requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, REQUEST_SYNC_CONTACTS);
 721					}
 722				}
 723			}
 724		}
 725	}
 726
 727	@Override
 728	public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[], @NonNull int[] grantResults) {
 729		if (grantResults.length > 0)
 730			if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
 731				ScanActivity.onRequestPermissionResult(this, requestCode, grantResults);
 732				if (requestCode == REQUEST_SYNC_CONTACTS && xmppConnectionServiceBound) {
 733					if (QuickConversationsService.isQuicksy()) {
 734						setRefreshing(true);
 735					}
 736					xmppConnectionService.loadPhoneContacts();
 737					xmppConnectionService.startContactObserver();
 738				}
 739			}
 740	}
 741
 742	private void configureHomeButton() {
 743		final ActionBar actionBar = getSupportActionBar();
 744		if (actionBar == null) {
 745			return;
 746		}
 747		boolean openConversations = !createdByViewIntent && !xmppConnectionService.isConversationsListEmpty(null);
 748		actionBar.setDisplayHomeAsUpEnabled(openConversations);
 749		actionBar.setDisplayHomeAsUpEnabled(openConversations);
 750
 751	}
 752
 753	@Override
 754	protected void onBackendConnected() {
 755
 756		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M || checkSelfPermission(Manifest.permission.READ_CONTACTS) == PackageManager.PERMISSION_GRANTED) {
 757			xmppConnectionService.getQuickConversationsService().considerSyncBackground(false);
 758		}
 759		if (mPostponedActivityResult != null) {
 760			onActivityResult(mPostponedActivityResult.first, RESULT_OK, mPostponedActivityResult.second);
 761			this.mPostponedActivityResult = null;
 762		}
 763		this.mActivatedAccounts.clear();
 764		for (Account account : xmppConnectionService.getAccounts()) {
 765			if (account.getStatus() != Account.State.DISABLED) {
 766				if (Config.DOMAIN_LOCK != null) {
 767					this.mActivatedAccounts.add(account.getJid().getLocal());
 768				} else {
 769					this.mActivatedAccounts.add(account.getJid().asBareJid().toString());
 770				}
 771			}
 772		}
 773		configureHomeButton();
 774		Intent intent = pendingViewIntent.pop();
 775		if (intent != null && processViewIntent(intent)) {
 776			filter(null);
 777		} else {
 778			if (mSearchEditText != null) {
 779				filter(mSearchEditText.getText().toString());
 780			} else {
 781				filter(null);
 782			}
 783		}
 784		Fragment fragment = getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAG_DIALOG);
 785		if (fragment instanceof OnBackendConnected) {
 786			Log.d(Config.LOGTAG, "calling on backend connected on dialog");
 787			((OnBackendConnected) fragment).onBackendConnected();
 788		}
 789		if (QuickConversationsService.isQuicksy()) {
 790			setRefreshing(xmppConnectionService.getQuickConversationsService().isSynchronizing());
 791		}
 792	}
 793
 794	protected boolean processViewIntent(@NonNull Intent intent) {
 795		final String inviteUri = intent.getStringExtra(EXTRA_INVITE_URI);
 796		if (inviteUri != null) {
 797			Invite invite = new Invite(inviteUri);
 798			if (invite.isJidValid()) {
 799				return invite.invite();
 800			}
 801		}
 802		final String action = intent.getAction();
 803		if (action == null) {
 804			return false;
 805		}
 806		switch (action) {
 807			case Intent.ACTION_SENDTO:
 808			case Intent.ACTION_VIEW:
 809				Uri uri = intent.getData();
 810				if (uri != null) {
 811					Invite invite = new Invite(intent.getData(), intent.getBooleanExtra("scanned", false));
 812					invite.account = intent.getStringExtra("account");
 813					return invite.invite();
 814				} else {
 815					return false;
 816				}
 817		}
 818		return false;
 819	}
 820
 821	private boolean handleJid(Invite invite) {
 822		List<Contact> contacts = xmppConnectionService.findContacts(invite.getJid(), invite.account);
 823		if (invite.isAction(XmppUri.ACTION_JOIN)) {
 824			Conversation muc = xmppConnectionService.findFirstMuc(invite.getJid());
 825			if (muc != null) {
 826				switchToConversationDoNotAppend(muc, invite.getBody());
 827				return true;
 828			} else {
 829				showJoinConferenceDialog(invite.getJid().asBareJid().toString());
 830				return false;
 831			}
 832		} else if (contacts.size() == 0) {
 833			showCreateContactDialog(invite.getJid().toString(), invite);
 834			return false;
 835		} else if (contacts.size() == 1) {
 836			Contact contact = contacts.get(0);
 837			if (!invite.isSafeSource() && invite.hasFingerprints()) {
 838				displayVerificationWarningDialog(contact, invite);
 839			} else {
 840				if (invite.hasFingerprints()) {
 841					if (xmppConnectionService.verifyFingerprints(contact, invite.getFingerprints())) {
 842						Toast.makeText(this, R.string.verified_fingerprints, Toast.LENGTH_SHORT).show();
 843					}
 844				}
 845				if (invite.account != null) {
 846					xmppConnectionService.getShortcutService().report(contact);
 847				}
 848				switchToConversationDoNotAppend(contact, invite.getBody());
 849			}
 850			return true;
 851		} else {
 852			if (mMenuSearchView != null) {
 853				mMenuSearchView.expandActionView();
 854				mSearchEditText.setText("");
 855				mSearchEditText.append(invite.getJid().toString());
 856				filter(invite.getJid().toString());
 857			} else {
 858				mInitialSearchValue.push(invite.getJid().toString());
 859			}
 860			return true;
 861		}
 862	}
 863
 864	private void displayVerificationWarningDialog(final Contact contact, final Invite invite) {
 865		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 866		builder.setTitle(R.string.verify_omemo_keys);
 867		View view = getLayoutInflater().inflate(R.layout.dialog_verify_fingerprints, null);
 868		final CheckBox isTrustedSource = view.findViewById(R.id.trusted_source);
 869		TextView warning = view.findViewById(R.id.warning);
 870		warning.setText(JidDialog.style(this, R.string.verifying_omemo_keys_trusted_source, contact.getJid().asBareJid().toEscapedString(), contact.getDisplayName()));
 871		builder.setView(view);
 872		builder.setPositiveButton(R.string.confirm, (dialog, which) -> {
 873			if (isTrustedSource.isChecked() && invite.hasFingerprints()) {
 874				xmppConnectionService.verifyFingerprints(contact, invite.getFingerprints());
 875			}
 876			switchToConversationDoNotAppend(contact, invite.getBody());
 877		});
 878		builder.setNegativeButton(R.string.cancel, (dialog, which) -> StartConversationActivity.this.finish());
 879		AlertDialog dialog = builder.create();
 880		dialog.setCanceledOnTouchOutside(false);
 881		dialog.setOnCancelListener(dialog1 -> StartConversationActivity.this.finish());
 882		dialog.show();
 883	}
 884
 885	protected void filter(String needle) {
 886		if (xmppConnectionServiceBound) {
 887			this.filterContacts(needle);
 888			this.filterConferences(needle);
 889		}
 890	}
 891
 892	protected void filterContacts(String needle) {
 893		this.contacts.clear();
 894		final List<Account> accounts = xmppConnectionService.getAccounts();
 895		for (Account account : accounts) {
 896			if (account.getStatus() != Account.State.DISABLED) {
 897				for (Contact contact : account.getRoster().getContacts()) {
 898					Presence.Status s = contact.getShownStatus();
 899					if (contact.showInContactList() && contact.match(this, needle)
 900							&& (!this.mHideOfflineContacts
 901							|| (needle != null && !needle.trim().isEmpty())
 902							|| s.compareTo(Presence.Status.OFFLINE) < 0)) {
 903						this.contacts.add(contact);
 904					}
 905				}
 906			}
 907		}
 908		Collections.sort(this.contacts);
 909		mContactsAdapter.notifyDataSetChanged();
 910	}
 911
 912	protected void filterConferences(String needle) {
 913		this.conferences.clear();
 914		for (Account account : xmppConnectionService.getAccounts()) {
 915			if (account.getStatus() != Account.State.DISABLED) {
 916				for (Bookmark bookmark : account.getBookmarks()) {
 917					if (bookmark.match(this, needle)) {
 918						this.conferences.add(bookmark);
 919					}
 920				}
 921			}
 922		}
 923		Collections.sort(this.conferences);
 924		mConferenceAdapter.notifyDataSetChanged();
 925	}
 926
 927	private void onTabChanged() {
 928		@DrawableRes final int fabDrawable;
 929		if (binding.startConversationViewPager.getCurrentItem() == 0) {
 930			fabDrawable = R.drawable.ic_person_add_white_24dp;
 931		} else {
 932			fabDrawable = R.drawable.ic_group_add_white_24dp;
 933		}
 934		binding.fab.setImageResource(fabDrawable);
 935		invalidateOptionsMenu();
 936	}
 937
 938	@Override
 939	public void OnUpdateBlocklist(final Status status) {
 940		refreshUi();
 941	}
 942
 943	@Override
 944	protected void refreshUiReal() {
 945		if (mSearchEditText != null) {
 946			filter(mSearchEditText.getText().toString());
 947		}
 948		configureHomeButton();
 949		if (QuickConversationsService.isQuicksy()) {
 950			setRefreshing(xmppConnectionService.getQuickConversationsService().isSynchronizing());
 951		}
 952	}
 953
 954	@Override
 955	public void onBackPressed() {
 956		navigateBack();
 957	}
 958
 959	private void navigateBack() {
 960		if (!createdByViewIntent && xmppConnectionService != null && !xmppConnectionService.isConversationsListEmpty(null)) {
 961			Intent intent = new Intent(this, ConversationsActivity.class);
 962			intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
 963			startActivity(intent);
 964		}
 965		finish();
 966	}
 967
 968	@Override
 969	public void onCreateDialogPositiveClick(Spinner spinner, String name) {
 970		if (!xmppConnectionServiceBound) {
 971			return;
 972		}
 973		final Account account = getSelectedAccount(spinner);
 974		if (account == null) {
 975			return;
 976		}
 977		Intent intent = new Intent(getApplicationContext(), ChooseContactActivity.class);
 978		intent.putExtra(ChooseContactActivity.EXTRA_SHOW_ENTER_JID, false);
 979		intent.putExtra(ChooseContactActivity.EXTRA_SELECT_MULTIPLE, true);
 980		intent.putExtra(ChooseContactActivity.EXTRA_GROUP_CHAT_NAME, name.trim());
 981		intent.putExtra(ChooseContactActivity.EXTRA_ACCOUNT, account.getJid().asBareJid().toString());
 982		intent.putExtra(ChooseContactActivity.EXTRA_TITLE_RES_ID, R.string.choose_participants);
 983		startActivityForResult(intent, REQUEST_CREATE_CONFERENCE);
 984	}
 985
 986	@Override
 987	public void onJoinDialogPositiveClick(Dialog dialog, Spinner spinner, AutoCompleteTextView jid, boolean isBookmarkChecked) {
 988		if (!xmppConnectionServiceBound) {
 989			return;
 990		}
 991		final Account account = getSelectedAccount(spinner);
 992		if (account == null) {
 993			return;
 994		}
 995		final Jid conferenceJid;
 996		try {
 997			conferenceJid = Jid.of(jid.getText().toString());
 998		} catch (final IllegalArgumentException e) {
 999			jid.setError(getString(R.string.invalid_jid));
1000			return;
1001		}
1002
1003		if (isBookmarkChecked) {
1004			if (account.hasBookmarkFor(conferenceJid)) {
1005				jid.setError(getString(R.string.bookmark_already_exists));
1006			} else {
1007				final Bookmark bookmark = new Bookmark(account, conferenceJid.asBareJid());
1008				bookmark.setAutojoin(getBooleanPreference("autojoin", R.bool.autojoin));
1009				String nick = conferenceJid.getResource();
1010				if (nick != null && !nick.isEmpty()) {
1011					bookmark.setNick(nick);
1012				}
1013				account.getBookmarks().add(bookmark);
1014				xmppConnectionService.pushBookmarks(account);
1015				final Conversation conversation = xmppConnectionService
1016						.findOrCreateConversation(account, conferenceJid, true, true, true);
1017				bookmark.setConversation(conversation);
1018				dialog.dismiss();
1019				switchToConversation(conversation);
1020			}
1021		} else {
1022			final Conversation conversation = xmppConnectionService
1023					.findOrCreateConversation(account, conferenceJid, true, true, true);
1024			dialog.dismiss();
1025			switchToConversation(conversation);
1026		}
1027	}
1028
1029	@Override
1030	public void onConversationUpdate() {
1031		refreshUi();
1032	}
1033
1034	@Override
1035	public void onRefresh() {
1036		Log.d(Config.LOGTAG,"user requested to refresh");
1037		if (QuickConversationsService.isQuicksy() && xmppConnectionService != null) {
1038			xmppConnectionService.getQuickConversationsService().considerSyncBackground(true);
1039		}
1040	}
1041
1042
1043	private void setRefreshing(boolean refreshing) {
1044		MyListFragment fragment = (MyListFragment) mListPagerAdapter.getItem(0);
1045		if (fragment != null) {
1046			fragment.setRefreshing(refreshing);
1047		}
1048	}
1049
1050	public static class MyListFragment extends SwipeRefreshListFragment {
1051		private AdapterView.OnItemClickListener mOnItemClickListener;
1052		private int mResContextMenu;
1053
1054		public void setContextMenu(final int res) {
1055			this.mResContextMenu = res;
1056		}
1057
1058		@Override
1059		public void onListItemClick(final ListView l, final View v, final int position, final long id) {
1060			if (mOnItemClickListener != null) {
1061				mOnItemClickListener.onItemClick(l, v, position, id);
1062			}
1063		}
1064
1065		public void setOnListItemClickListener(AdapterView.OnItemClickListener l) {
1066			this.mOnItemClickListener = l;
1067		}
1068
1069		@Override
1070		public void onViewCreated(@NonNull final View view, final Bundle savedInstanceState) {
1071			super.onViewCreated(view, savedInstanceState);
1072			registerForContextMenu(getListView());
1073			getListView().setFastScrollEnabled(true);
1074			getListView().setDivider(null);
1075			getListView().setDividerHeight(0);
1076		}
1077
1078		@Override
1079		public void onCreateContextMenu(final ContextMenu menu, final View v, final ContextMenuInfo menuInfo) {
1080			super.onCreateContextMenu(menu, v, menuInfo);
1081			final StartConversationActivity activity = (StartConversationActivity) getActivity();
1082			if (activity == null) {
1083				return;
1084			}
1085			activity.getMenuInflater().inflate(mResContextMenu, menu);
1086			final AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
1087			if (mResContextMenu == R.menu.conference_context) {
1088				activity.conference_context_id = acmi.position;
1089			} else if (mResContextMenu == R.menu.contact_context) {
1090				activity.contact_context_id = acmi.position;
1091				final Contact contact = (Contact) activity.contacts.get(acmi.position);
1092				final MenuItem blockUnblockItem = menu.findItem(R.id.context_contact_block_unblock);
1093				final MenuItem showContactDetailsItem = menu.findItem(R.id.context_contact_details);
1094				final MenuItem deleteContactMenuItem = menu.findItem(R.id.context_delete_contact);
1095				if (contact.isSelf()) {
1096					showContactDetailsItem.setVisible(false);
1097				}
1098				deleteContactMenuItem.setVisible(contact.showInRoster() && !contact.getOption(Contact.Options.SYNCED_VIA_OTHER));
1099				XmppConnection xmpp = contact.getAccount().getXmppConnection();
1100				if (xmpp != null && xmpp.getFeatures().blocking() && !contact.isSelf()) {
1101					if (contact.isBlocked()) {
1102						blockUnblockItem.setTitle(R.string.unblock_contact);
1103					} else {
1104						blockUnblockItem.setTitle(R.string.block_contact);
1105					}
1106				} else {
1107					blockUnblockItem.setVisible(false);
1108				}
1109			}
1110		}
1111
1112		@Override
1113		public boolean onContextItemSelected(final MenuItem item) {
1114			StartConversationActivity activity = (StartConversationActivity) getActivity();
1115			if (activity == null) {
1116				return true;
1117			}
1118			switch (item.getItemId()) {
1119				case R.id.context_contact_details:
1120					activity.openDetailsForContact();
1121					break;
1122				case R.id.context_show_qr:
1123					activity.showQrForContact();
1124					break;
1125				case R.id.context_contact_block_unblock:
1126					activity.toggleContactBlock();
1127					break;
1128				case R.id.context_delete_contact:
1129					activity.deleteContact();
1130					break;
1131				case R.id.context_join_conference:
1132					activity.openConversationForBookmark();
1133					break;
1134				case R.id.context_share_uri:
1135					activity.shareBookmarkUri();
1136					break;
1137				case R.id.context_delete_conference:
1138					activity.deleteConference();
1139			}
1140			return true;
1141		}
1142	}
1143
1144	public class ListPagerAdapter extends PagerAdapter {
1145		private final FragmentManager fragmentManager;
1146		private final MyListFragment[] fragments;
1147
1148		ListPagerAdapter(FragmentManager fm) {
1149			fragmentManager = fm;
1150			fragments = new MyListFragment[2];
1151		}
1152
1153		public void requestFocus(int pos) {
1154			if (fragments.length > pos) {
1155				fragments[pos].getListView().requestFocus();
1156			}
1157		}
1158
1159		@Override
1160		public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {
1161			FragmentTransaction trans = fragmentManager.beginTransaction();
1162			trans.remove(fragments[position]);
1163			trans.commit();
1164			fragments[position] = null;
1165		}
1166
1167		@NonNull
1168		@Override
1169		public Fragment instantiateItem(@NonNull ViewGroup container, int position) {
1170			final Fragment fragment = getItem(position);
1171			final FragmentTransaction trans = fragmentManager.beginTransaction();
1172			trans.add(container.getId(), fragment, "fragment:" + position);
1173			try {
1174				trans.commit();
1175			} catch (IllegalStateException e) {
1176				//ignore
1177			}
1178			return fragment;
1179		}
1180
1181		@Override
1182		public int getCount() {
1183			return fragments.length;
1184		}
1185
1186		@Override
1187		public boolean isViewFromObject(@NonNull View view, @NonNull Object fragment) {
1188			return ((Fragment) fragment).getView() == view;
1189		}
1190
1191		@Nullable
1192		@Override
1193		public CharSequence getPageTitle(int position) {
1194			switch (position) {
1195				case 0:
1196					return getResources().getString(R.string.contacts);
1197				case 1:
1198					return getResources().getString(R.string.conferences);
1199				default:
1200					return super.getPageTitle(position);
1201			}
1202		}
1203
1204		Fragment getItem(int position) {
1205			if (fragments[position] == null) {
1206				final MyListFragment listFragment = new MyListFragment();
1207				if (position == 1) {
1208					listFragment.setListAdapter(mConferenceAdapter);
1209					listFragment.setContextMenu(R.menu.conference_context);
1210					listFragment.setOnListItemClickListener((arg0, arg1, p, arg3) -> openConversationForBookmark(p));
1211				} else {
1212					listFragment.setListAdapter(mContactsAdapter);
1213					listFragment.setContextMenu(R.menu.contact_context);
1214					listFragment.setOnListItemClickListener((arg0, arg1, p, arg3) -> openConversationForContact(p));
1215					if (QuickConversationsService.isQuicksy()) {
1216						listFragment.setOnRefreshListener(StartConversationActivity.this);
1217					}
1218				}
1219				fragments[position] = listFragment;
1220			}
1221			return fragments[position];
1222		}
1223	}
1224
1225	public static void addInviteUri(Intent to, Intent from) {
1226		if (from != null && from.hasExtra(EXTRA_INVITE_URI)) {
1227			to.putExtra(EXTRA_INVITE_URI, from.getStringExtra(EXTRA_INVITE_URI));
1228		}
1229	}
1230
1231	private class Invite extends XmppUri {
1232
1233		public String account;
1234
1235		public Invite(final Uri uri) {
1236			super(uri);
1237		}
1238
1239		public Invite(final String uri) {
1240			super(uri);
1241		}
1242
1243		public Invite(Uri uri, boolean safeSource) {
1244			super(uri, safeSource);
1245		}
1246
1247		boolean invite() {
1248			if (!isJidValid()) {
1249				Toast.makeText(StartConversationActivity.this, R.string.invalid_jid, Toast.LENGTH_SHORT).show();
1250				return false;
1251			}
1252			if (getJid() != null) {
1253				return handleJid(this);
1254			}
1255			return false;
1256		}
1257	}
1258}