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.content.ContextCompat;
  25import android.support.v4.view.PagerAdapter;
  26import android.support.v4.view.ViewPager;
  27import android.support.v4.widget.SwipeRefreshLayout;
  28import android.support.v7.app.ActionBar;
  29import android.support.v7.app.AlertDialog;
  30import android.support.v7.widget.Toolbar;
  31import android.text.Editable;
  32import android.text.Html;
  33import android.text.SpannableString;
  34import android.text.Spanned;
  35import android.text.TextWatcher;
  36import android.text.method.LinkMovementMethod;
  37import android.text.util.Linkify;
  38import android.util.Log;
  39import android.util.Pair;
  40import android.view.ContextMenu;
  41import android.view.ContextMenu.ContextMenuInfo;
  42import android.view.KeyEvent;
  43import android.view.Menu;
  44import android.view.MenuItem;
  45import android.view.View;
  46import android.view.ViewGroup;
  47import android.view.inputmethod.InputMethodManager;
  48import android.widget.AdapterView;
  49import android.widget.AdapterView.AdapterContextMenuInfo;
  50import android.widget.ArrayAdapter;
  51import android.widget.AutoCompleteTextView;
  52import android.widget.CheckBox;
  53import android.widget.EditText;
  54import android.widget.ListView;
  55import android.widget.Spinner;
  56import android.widget.TextView;
  57import android.widget.Toast;
  58
  59import com.leinardi.android.speeddial.SpeedDialActionItem;
  60import com.leinardi.android.speeddial.SpeedDialView;
  61
  62import java.util.ArrayList;
  63import java.util.Collections;
  64import java.util.List;
  65import java.util.concurrent.atomic.AtomicBoolean;
  66
  67import eu.siacs.conversations.Config;
  68import eu.siacs.conversations.R;
  69import eu.siacs.conversations.databinding.ActivityStartConversationBinding;
  70import eu.siacs.conversations.entities.Account;
  71import eu.siacs.conversations.entities.Bookmark;
  72import eu.siacs.conversations.entities.Contact;
  73import eu.siacs.conversations.entities.Conversation;
  74import eu.siacs.conversations.entities.ListItem;
  75import eu.siacs.conversations.entities.Presence;
  76import eu.siacs.conversations.services.QuickConversationsService;
  77import eu.siacs.conversations.services.XmppConnectionService;
  78import eu.siacs.conversations.services.XmppConnectionService.OnRosterUpdate;
  79import eu.siacs.conversations.ui.adapter.ListItemAdapter;
  80import eu.siacs.conversations.ui.interfaces.OnBackendConnected;
  81import eu.siacs.conversations.ui.service.EmojiService;
  82import eu.siacs.conversations.ui.util.JidDialog;
  83import eu.siacs.conversations.ui.util.MenuDoubleTabUtil;
  84import eu.siacs.conversations.ui.util.PendingItem;
  85import eu.siacs.conversations.ui.util.SoftKeyboardUtils;
  86import eu.siacs.conversations.ui.util.StyledAttributes;
  87import eu.siacs.conversations.ui.widget.SwipeRefreshListFragment;
  88import eu.siacs.conversations.utils.AccountUtils;
  89import eu.siacs.conversations.utils.XmppUri;
  90import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
  91import eu.siacs.conversations.xmpp.XmppConnection;
  92import rocks.xmpp.addr.Jid;
  93
  94public class StartConversationActivity extends XmppActivity implements XmppConnectionService.OnConversationUpdate, OnRosterUpdate, OnUpdateBlocklist, CreateConferenceDialog.CreateConferenceDialogListener, JoinConferenceDialog.JoinConferenceDialogListener, SwipeRefreshLayout.OnRefreshListener {
  95
  96	public static final String EXTRA_INVITE_URI = "eu.siacs.conversations.invite_uri";
  97
  98	private final int REQUEST_SYNC_CONTACTS = 0x28cf;
  99	private final int REQUEST_CREATE_CONFERENCE = 0x39da;
 100	private final PendingItem<Intent> pendingViewIntent = new PendingItem<>();
 101	private final PendingItem<String> mInitialSearchValue = new PendingItem<>();
 102	private final AtomicBoolean oneShotKeyboardSuppress = new AtomicBoolean();
 103	public int conference_context_id;
 104	public int contact_context_id;
 105	private ListPagerAdapter mListPagerAdapter;
 106	private List<ListItem> contacts = new ArrayList<>();
 107	private ListItemAdapter mContactsAdapter;
 108	private List<ListItem> conferences = new ArrayList<>();
 109	private ListItemAdapter mConferenceAdapter;
 110	private List<String> mActivatedAccounts = new ArrayList<>();
 111	private EditText mSearchEditText;
 112	private AtomicBoolean mRequestedContactsPermission = new AtomicBoolean(false);
 113	private boolean mHideOfflineContacts = false;
 114	private boolean createdByViewIntent = false;
 115	private MenuItem.OnActionExpandListener mOnActionExpandListener = new MenuItem.OnActionExpandListener() {
 116
 117		@Override
 118		public boolean onMenuItemActionExpand(MenuItem item) {
 119			mSearchEditText.post(() -> {
 120				updateSearchViewHint();
 121				mSearchEditText.requestFocus();
 122				if (oneShotKeyboardSuppress.compareAndSet(true, false)) {
 123					return;
 124				}
 125				InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
 126				if (imm != null) {
 127					imm.showSoftInput(mSearchEditText, InputMethodManager.SHOW_IMPLICIT);
 128				}
 129			});
 130			if (binding.speedDial.isOpen()) {
 131				binding.speedDial.close();
 132			}
 133			return true;
 134		}
 135
 136		@Override
 137		public boolean onMenuItemActionCollapse(MenuItem item) {
 138			SoftKeyboardUtils.hideSoftKeyboard(StartConversationActivity.this);
 139			mSearchEditText.setText("");
 140			filter(null);
 141			return true;
 142		}
 143	};
 144	private TextWatcher mSearchTextWatcher = new TextWatcher() {
 145
 146		@Override
 147		public void afterTextChanged(Editable editable) {
 148			filter(editable.toString());
 149		}
 150
 151		@Override
 152		public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 153		}
 154
 155		@Override
 156		public void onTextChanged(CharSequence s, int start, int before, int count) {
 157		}
 158	};
 159	private MenuItem mMenuSearchView;
 160	private ListItemAdapter.OnTagClickedListener mOnTagClickedListener = new ListItemAdapter.OnTagClickedListener() {
 161		@Override
 162		public void onTagClicked(String tag) {
 163			if (mMenuSearchView != null) {
 164				mMenuSearchView.expandActionView();
 165				mSearchEditText.setText("");
 166				mSearchEditText.append(tag);
 167				filter(tag);
 168			}
 169		}
 170	};
 171	private Pair<Integer, Intent> mPostponedActivityResult;
 172	private Toast mToast;
 173	private UiCallback<Conversation> mAdhocConferenceCallback = new UiCallback<Conversation>() {
 174		@Override
 175		public void success(final Conversation conversation) {
 176			runOnUiThread(() -> {
 177				hideToast();
 178				switchToConversation(conversation);
 179			});
 180		}
 181
 182		@Override
 183		public void error(final int errorCode, Conversation object) {
 184			runOnUiThread(() -> replaceToast(getString(errorCode)));
 185		}
 186
 187		@Override
 188		public void userInputRequried(PendingIntent pi, Conversation object) {
 189
 190		}
 191	};
 192	private ActivityStartConversationBinding binding;
 193	private TextView.OnEditorActionListener mSearchDone = new TextView.OnEditorActionListener() {
 194		@Override
 195		public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
 196			int pos = binding.startConversationViewPager.getCurrentItem();
 197			if (pos == 0) {
 198				if (contacts.size() == 1) {
 199					openConversationForContact((Contact) contacts.get(0));
 200					return true;
 201				} else if (contacts.size() == 0 && conferences.size() == 1) {
 202					openConversationsForBookmark((Bookmark) conferences.get(0));
 203					return true;
 204				}
 205			} else {
 206				if (conferences.size() == 1) {
 207					openConversationsForBookmark((Bookmark) conferences.get(0));
 208					return true;
 209				} else if (conferences.size() == 0 && contacts.size() == 1) {
 210					openConversationForContact((Contact) contacts.get(0));
 211					return true;
 212				}
 213			}
 214			SoftKeyboardUtils.hideSoftKeyboard(StartConversationActivity.this);
 215			mListPagerAdapter.requestFocus(pos);
 216			return true;
 217		}
 218	};
 219	private ViewPager.SimpleOnPageChangeListener mOnPageChangeListener = new ViewPager.SimpleOnPageChangeListener() {
 220		@Override
 221		public void onPageSelected(int position) {
 222			onTabChanged();
 223		}
 224	};
 225
 226	public static void populateAccountSpinner(Context context, List<String> accounts, Spinner spinner) {
 227		if (accounts.size() > 0) {
 228			ArrayAdapter<String> adapter = new ArrayAdapter<>(context, R.layout.simple_list_item, accounts);
 229			adapter.setDropDownViewResource(R.layout.simple_list_item);
 230			spinner.setAdapter(adapter);
 231			spinner.setEnabled(true);
 232		} else {
 233			ArrayAdapter<String> adapter = new ArrayAdapter<>(context,
 234					R.layout.simple_list_item,
 235					Collections.singletonList(context.getString(R.string.no_accounts)));
 236			adapter.setDropDownViewResource(R.layout.simple_list_item);
 237			spinner.setAdapter(adapter);
 238			spinner.setEnabled(false);
 239		}
 240	}
 241
 242	public static void launch(Context context) {
 243		final Intent intent = new Intent(context, StartConversationActivity.class);
 244		context.startActivity(intent);
 245	}
 246
 247	private static Intent createLauncherIntent(Context context) {
 248		final Intent intent = new Intent(context, StartConversationActivity.class);
 249		intent.setAction(Intent.ACTION_MAIN);
 250		intent.addCategory(Intent.CATEGORY_LAUNCHER);
 251		return intent;
 252	}
 253
 254	private static boolean isViewIntent(final Intent i) {
 255		return i != null && (Intent.ACTION_VIEW.equals(i.getAction()) || Intent.ACTION_SENDTO.equals(i.getAction()) || i.hasExtra(EXTRA_INVITE_URI));
 256	}
 257
 258	protected void hideToast() {
 259		if (mToast != null) {
 260			mToast.cancel();
 261		}
 262	}
 263
 264	protected void replaceToast(String msg) {
 265		hideToast();
 266		mToast = Toast.makeText(this, msg, Toast.LENGTH_LONG);
 267		mToast.show();
 268	}
 269
 270	@Override
 271	public void onRosterUpdate() {
 272		this.refreshUi();
 273	}
 274
 275	@Override
 276	public void onCreate(Bundle savedInstanceState) {
 277		super.onCreate(savedInstanceState);
 278		this.binding = DataBindingUtil.setContentView(this, R.layout.activity_start_conversation);
 279		Toolbar toolbar = (Toolbar) binding.toolbar;
 280		setSupportActionBar(toolbar);
 281		configureActionBar(getSupportActionBar());
 282		this.binding.speedDial.setOnChangeListener(new SpeedDialView.OnChangeListener() {
 283			@Override
 284			public boolean onMainActionSelected() {
 285				if (binding.startConversationViewPager.getCurrentItem() == 0) {
 286					String searchString = mSearchEditText != null ? mSearchEditText.getText().toString() : null;
 287					if (searchString != null && !searchString.trim().isEmpty()) {
 288						try {
 289							Jid jid = Jid.of(searchString);
 290							if (jid.getLocal() != null && jid.isBareJid() && jid.getDomain().contains(".")) {
 291								showCreateContactDialog(jid.toString(), null);
 292								return false;
 293							}
 294						} catch (IllegalArgumentException ignored) {
 295							//ignore and fall through
 296						}
 297					}
 298					showCreateContactDialog(null, null);
 299				}
 300				return false;
 301			}
 302
 303			@Override
 304			public void onToggleChanged(boolean isOpen) {
 305
 306			}
 307		});
 308
 309		binding.tabLayout.setupWithViewPager(binding.startConversationViewPager);
 310		binding.startConversationViewPager.addOnPageChangeListener(mOnPageChangeListener);
 311		mListPagerAdapter = new ListPagerAdapter(getSupportFragmentManager());
 312		binding.startConversationViewPager.setAdapter(mListPagerAdapter);
 313
 314		mConferenceAdapter = new ListItemAdapter(this, conferences);
 315		mContactsAdapter = new ListItemAdapter(this, contacts);
 316		mContactsAdapter.setOnTagClickedListener(this.mOnTagClickedListener);
 317
 318		final SharedPreferences preferences = getPreferences();
 319
 320		this.mHideOfflineContacts = QuickConversationsService.isConversations() && preferences.getBoolean("hide_offline", false);
 321
 322		final boolean startSearching = preferences.getBoolean("start_searching",getResources().getBoolean(R.bool.start_searching));
 323
 324		final Intent intent;
 325		if (savedInstanceState == null) {
 326			intent = getIntent();
 327		} else {
 328			createdByViewIntent = savedInstanceState.getBoolean("created_by_view_intent", false);
 329			final String search = savedInstanceState.getString("search");
 330			if (search != null) {
 331				mInitialSearchValue.push(search);
 332			}
 333			intent = savedInstanceState.getParcelable("intent");
 334		}
 335
 336		if (isViewIntent(intent)) {
 337			pendingViewIntent.push(intent);
 338			createdByViewIntent = true;
 339			setIntent(createLauncherIntent(this));
 340		} else if (startSearching && mInitialSearchValue.peek() == null) {
 341			mInitialSearchValue.push("");
 342		}
 343		mRequestedContactsPermission.set(savedInstanceState != null && savedInstanceState.getBoolean("requested_contacts_permission",false));
 344		binding.speedDial.setOnActionSelectedListener(actionItem -> {
 345			switch (actionItem.getId()) {
 346				case R.id.enter:
 347					showJoinConferenceDialog(null);
 348					break;
 349				case R.id.create:
 350					showCreateConferenceDialog();
 351					break;
 352			}
 353			return false;
 354		});
 355	}
 356
 357	@Override
 358	public void onSaveInstanceState(Bundle savedInstanceState) {
 359		Intent pendingIntent = pendingViewIntent.peek();
 360		savedInstanceState.putParcelable("intent", pendingIntent != null ? pendingIntent : getIntent());
 361		savedInstanceState.putBoolean("requested_contacts_permission",mRequestedContactsPermission.get());
 362		savedInstanceState.putBoolean("created_by_view_intent",createdByViewIntent);
 363		if (mMenuSearchView != null && mMenuSearchView.isActionViewExpanded()) {
 364			savedInstanceState.putString("search", mSearchEditText != null ? mSearchEditText.getText().toString() : null);
 365		}
 366		super.onSaveInstanceState(savedInstanceState);
 367	}
 368
 369	@Override
 370	public void onStart() {
 371		super.onStart();
 372		final int theme = findTheme();
 373		if (this.mTheme != theme) {
 374			recreate();
 375		} else {
 376			if (pendingViewIntent.peek() == null) {
 377				askForContactsPermissions();
 378			}
 379		}
 380		mConferenceAdapter.refreshSettings();
 381		mContactsAdapter.refreshSettings();
 382	}
 383
 384	@Override
 385	public void onNewIntent(final Intent intent) {
 386		if (xmppConnectionServiceBound) {
 387			processViewIntent(intent);
 388		} else {
 389			pendingViewIntent.push(intent);
 390		}
 391		setIntent(createLauncherIntent(this));
 392	}
 393
 394	protected void openConversationForContact(int position) {
 395		Contact contact = (Contact) contacts.get(position);
 396		openConversationForContact(contact);
 397	}
 398
 399	protected void openConversationForContact(Contact contact) {
 400		Conversation conversation = xmppConnectionService.findOrCreateConversation(contact.getAccount(), contact.getJid(), false, true);
 401		SoftKeyboardUtils.hideSoftKeyboard(this);
 402		switchToConversation(conversation);
 403	}
 404
 405	protected void openConversationForBookmark() {
 406		openConversationForBookmark(conference_context_id);
 407	}
 408
 409	protected void openConversationForBookmark(int position) {
 410		Bookmark bookmark = (Bookmark) conferences.get(position);
 411		openConversationsForBookmark(bookmark);
 412	}
 413
 414	protected void shareBookmarkUri() {
 415		shareBookmarkUri(conference_context_id);
 416	}
 417
 418	protected void shareBookmarkUri(int position) {
 419		Bookmark bookmark = (Bookmark) conferences.get(position);
 420		Intent shareIntent = new Intent();
 421		shareIntent.setAction(Intent.ACTION_SEND);
 422		shareIntent.putExtra(Intent.EXTRA_TEXT, "xmpp:" + bookmark.getJid().asBareJid().toEscapedString() + "?join");
 423		shareIntent.setType("text/plain");
 424		try {
 425			startActivity(Intent.createChooser(shareIntent, getText(R.string.share_uri_with)));
 426		} catch (ActivityNotFoundException e) {
 427			Toast.makeText(this, R.string.no_application_to_share_uri, Toast.LENGTH_SHORT).show();
 428		}
 429	}
 430
 431	protected void openConversationsForBookmark(Bookmark bookmark) {
 432		final Jid jid = bookmark.getFullJid();
 433		if (jid == null) {
 434			Toast.makeText(this, R.string.invalid_jid, Toast.LENGTH_SHORT).show();
 435			return;
 436		}
 437		Conversation conversation = xmppConnectionService.findOrCreateConversation(bookmark.getAccount(), jid, true, true, true);
 438		bookmark.setConversation(conversation);
 439		if (!bookmark.autojoin() && getPreferences().getBoolean("autojoin", getResources().getBoolean(R.bool.autojoin))) {
 440			bookmark.setAutojoin(true);
 441			xmppConnectionService.pushBookmarks(bookmark.getAccount());
 442		}
 443		SoftKeyboardUtils.hideSoftKeyboard(this);
 444		switchToConversation(conversation);
 445	}
 446
 447	protected void openDetailsForContact() {
 448		int position = contact_context_id;
 449		Contact contact = (Contact) contacts.get(position);
 450		switchToContactDetails(contact);
 451	}
 452
 453	protected void showQrForContact() {
 454		int position = contact_context_id;
 455		Contact contact = (Contact) contacts.get(position);
 456		showQrCode("xmpp:"+contact.getJid().asBareJid().toEscapedString());
 457	}
 458
 459	protected void toggleContactBlock() {
 460		final int position = contact_context_id;
 461		BlockContactDialog.show(this, (Contact) contacts.get(position));
 462	}
 463
 464	protected void deleteContact() {
 465		final int position = contact_context_id;
 466		final Contact contact = (Contact) contacts.get(position);
 467		final AlertDialog.Builder builder = new AlertDialog.Builder(this);
 468		builder.setNegativeButton(R.string.cancel, null);
 469		builder.setTitle(R.string.action_delete_contact);
 470		builder.setMessage(JidDialog.style(this, R.string.remove_contact_text, contact.getJid().toEscapedString()));
 471		builder.setPositiveButton(R.string.delete, (dialog, which) -> {
 472			xmppConnectionService.deleteContactOnServer(contact);
 473			filter(mSearchEditText.getText().toString());
 474		});
 475		builder.create().show();
 476	}
 477
 478	protected void deleteConference() {
 479		int position = conference_context_id;
 480		final Bookmark bookmark = (Bookmark) conferences.get(position);
 481
 482		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 483		builder.setNegativeButton(R.string.cancel, null);
 484		builder.setTitle(R.string.delete_bookmark);
 485		builder.setMessage(JidDialog.style(this, R.string.remove_bookmark_text, bookmark.getJid().toEscapedString()));
 486		builder.setPositiveButton(R.string.delete, (dialog, which) -> {
 487			bookmark.setConversation(null);
 488			Account account = bookmark.getAccount();
 489			account.getBookmarks().remove(bookmark);
 490			xmppConnectionService.pushBookmarks(account);
 491			filter(mSearchEditText.getText().toString());
 492		});
 493		builder.create().show();
 494
 495	}
 496
 497	@SuppressLint("InflateParams")
 498	protected void showCreateContactDialog(final String prefilledJid, final Invite invite) {
 499		FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
 500		Fragment prev = getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAG_DIALOG);
 501		if (prev != null) {
 502			ft.remove(prev);
 503		}
 504		ft.addToBackStack(null);
 505		EnterJidDialog dialog = EnterJidDialog.newInstance(
 506				mActivatedAccounts,
 507				getString(R.string.dialog_title_create_contact),
 508				getString(R.string.create),
 509				prefilledJid,
 510				null,
 511				invite == null || !invite.hasFingerprints()
 512		);
 513
 514		dialog.setOnEnterJidDialogPositiveListener((accountJid, contactJid) -> {
 515			if (!xmppConnectionServiceBound) {
 516				return false;
 517			}
 518
 519			final Account account = xmppConnectionService.findAccountByJid(accountJid);
 520			if (account == null) {
 521				return true;
 522			}
 523
 524			final Contact contact = account.getRoster().getContact(contactJid);
 525			if (invite != null && invite.getName() != null) {
 526				contact.setServerName(invite.getName());
 527			}
 528			if (contact.isSelf()) {
 529				switchToConversation(contact);
 530				return true;
 531			} else if (contact.showInRoster()) {
 532				throw new EnterJidDialog.JidError(getString(R.string.contact_already_exists));
 533			} else {
 534				xmppConnectionService.createContact(contact, true);
 535				if (invite != null && invite.hasFingerprints()) {
 536					xmppConnectionService.verifyFingerprints(contact, invite.getFingerprints());
 537				}
 538				switchToConversationDoNotAppend(contact, invite == null ? null : invite.getBody());
 539				return true;
 540			}
 541		});
 542		dialog.show(ft, FRAGMENT_TAG_DIALOG);
 543	}
 544
 545	@SuppressLint("InflateParams")
 546	protected void showJoinConferenceDialog(final String prefilledJid) {
 547		FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
 548		Fragment prev = getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAG_DIALOG);
 549		if (prev != null) {
 550			ft.remove(prev);
 551		}
 552		ft.addToBackStack(null);
 553		JoinConferenceDialog joinConferenceFragment = JoinConferenceDialog.newInstance(prefilledJid, mActivatedAccounts);
 554		joinConferenceFragment.show(ft, FRAGMENT_TAG_DIALOG);
 555	}
 556
 557	private void showCreateConferenceDialog() {
 558		FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
 559		Fragment prev = getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAG_DIALOG);
 560		if (prev != null) {
 561			ft.remove(prev);
 562		}
 563		ft.addToBackStack(null);
 564		CreateConferenceDialog createConferenceFragment = CreateConferenceDialog.newInstance(mActivatedAccounts);
 565		createConferenceFragment.show(ft, FRAGMENT_TAG_DIALOG);
 566	}
 567
 568	private Account getSelectedAccount(Spinner spinner) {
 569		if (!spinner.isEnabled()) {
 570			return null;
 571		}
 572		Jid jid;
 573		try {
 574			if (Config.DOMAIN_LOCK != null) {
 575				jid = Jid.of((String) spinner.getSelectedItem(), Config.DOMAIN_LOCK, null);
 576			} else {
 577				jid = Jid.of((String) spinner.getSelectedItem());
 578			}
 579		} catch (final IllegalArgumentException e) {
 580			return null;
 581		}
 582		return xmppConnectionService.findAccountByJid(jid);
 583	}
 584
 585	protected void switchToConversation(Contact contact) {
 586		Conversation conversation = xmppConnectionService.findOrCreateConversation(contact.getAccount(), contact.getJid(), false, true);
 587		switchToConversation(conversation);
 588	}
 589
 590	protected void switchToConversationDoNotAppend(Contact contact, String body) {
 591		Conversation conversation = xmppConnectionService.findOrCreateConversation(contact.getAccount(), contact.getJid(), false, true);
 592		switchToConversationDoNotAppend(conversation, body);
 593	}
 594
 595	@Override
 596	public void invalidateOptionsMenu() {
 597		boolean isExpanded = mMenuSearchView != null && mMenuSearchView.isActionViewExpanded();
 598		String text = mSearchEditText != null ? mSearchEditText.getText().toString() : "";
 599		if (isExpanded) {
 600			mInitialSearchValue.push(text);
 601			oneShotKeyboardSuppress.set(true);
 602		}
 603		super.invalidateOptionsMenu();
 604	}
 605
 606	private void updateSearchViewHint() {
 607		if (binding == null || mSearchEditText == null) {
 608			return;
 609		}
 610		if (binding.startConversationViewPager.getCurrentItem() == 0) {
 611			mSearchEditText.setHint(R.string.search_contacts);
 612		} else {
 613			mSearchEditText.setHint(R.string.search_groups);
 614		}
 615	}
 616
 617	@Override
 618	public boolean onCreateOptionsMenu(Menu menu) {
 619		getMenuInflater().inflate(R.menu.start_conversation, menu);
 620		AccountUtils.showHideMenuItems(menu);
 621		MenuItem menuHideOffline = menu.findItem(R.id.action_hide_offline);
 622		MenuItem qrCodeScanMenuItem = menu.findItem(R.id.action_scan_qr_code);
 623		qrCodeScanMenuItem.setVisible(isCameraFeatureAvailable());
 624		if (QuickConversationsService.isQuicksy()) {
 625			menuHideOffline.setVisible(false);
 626		} else {
 627			menuHideOffline.setVisible(true);
 628			menuHideOffline.setChecked(this.mHideOfflineContacts);
 629		}
 630		mMenuSearchView = menu.findItem(R.id.action_search);
 631		mMenuSearchView.setOnActionExpandListener(mOnActionExpandListener);
 632		View mSearchView = mMenuSearchView.getActionView();
 633		mSearchEditText = mSearchView.findViewById(R.id.search_field);
 634		mSearchEditText.addTextChangedListener(mSearchTextWatcher);
 635		mSearchEditText.setOnEditorActionListener(mSearchDone);
 636		String initialSearchValue = mInitialSearchValue.pop();
 637		if (initialSearchValue != null) {
 638			mMenuSearchView.expandActionView();
 639			mSearchEditText.append(initialSearchValue);
 640			filter(initialSearchValue);
 641		}
 642		updateSearchViewHint();
 643		return super.onCreateOptionsMenu(menu);
 644	}
 645
 646	@Override
 647	public boolean onOptionsItemSelected(MenuItem item) {
 648		if (MenuDoubleTabUtil.shouldIgnoreTap()) {
 649			return false;
 650		}
 651		switch (item.getItemId()) {
 652			case android.R.id.home:
 653				navigateBack();
 654				return true;
 655			case R.id.action_scan_qr_code:
 656				UriHandlerActivity.scan(this);
 657				return true;
 658			case R.id.action_hide_offline:
 659				mHideOfflineContacts = !item.isChecked();
 660				getPreferences().edit().putBoolean("hide_offline", mHideOfflineContacts).apply();
 661				if (mSearchEditText != null) {
 662					filter(mSearchEditText.getText().toString());
 663				}
 664				invalidateOptionsMenu();
 665		}
 666		return super.onOptionsItemSelected(item);
 667	}
 668
 669	@Override
 670	public boolean onKeyUp(int keyCode, KeyEvent event) {
 671		if (keyCode == KeyEvent.KEYCODE_SEARCH && !event.isLongPress()) {
 672			openSearch();
 673			return true;
 674		}
 675		int c = event.getUnicodeChar();
 676		if (c > 32) {
 677			if (mSearchEditText != null && !mSearchEditText.isFocused()) {
 678				openSearch();
 679				mSearchEditText.append(Character.toString((char) c));
 680				return true;
 681			}
 682		}
 683		return super.onKeyUp(keyCode, event);
 684	}
 685
 686	private void openSearch() {
 687		if (mMenuSearchView != null) {
 688			mMenuSearchView.expandActionView();
 689		}
 690	}
 691
 692	@Override
 693	public void onActivityResult(int requestCode, int resultCode, Intent intent) {
 694		if (resultCode == RESULT_OK) {
 695			if (xmppConnectionServiceBound) {
 696				this.mPostponedActivityResult = null;
 697				if (requestCode == REQUEST_CREATE_CONFERENCE) {
 698					Account account = extractAccount(intent);
 699					final String name = intent.getStringExtra(ChooseContactActivity.EXTRA_GROUP_CHAT_NAME);
 700					final List<Jid> jids = ChooseContactActivity.extractJabberIds(intent);
 701					if (account != null && jids.size() > 0) {
 702						if (xmppConnectionService.createAdhocConference(account, name, jids, mAdhocConferenceCallback)) {
 703							mToast = Toast.makeText(this, R.string.creating_conference, Toast.LENGTH_LONG);
 704							mToast.show();
 705						}
 706					}
 707				}
 708			} else {
 709				this.mPostponedActivityResult = new Pair<>(requestCode, intent);
 710			}
 711		}
 712		super.onActivityResult(requestCode, requestCode, intent);
 713	}
 714
 715	private void askForContactsPermissions() {
 716		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 717			if (checkSelfPermission(Manifest.permission.READ_CONTACTS) != PackageManager.PERMISSION_GRANTED) {
 718				if (mRequestedContactsPermission.compareAndSet(false, true)) {
 719					if (shouldShowRequestPermissionRationale(Manifest.permission.READ_CONTACTS)) {
 720						AlertDialog.Builder builder = new AlertDialog.Builder(this);
 721						builder.setTitle(R.string.sync_with_contacts);
 722						if (QuickConversationsService.isQuicksy()) {
 723							builder.setMessage(Html.fromHtml(getString(R.string.sync_with_contacts_quicksy)));
 724                        } else {
 725                            builder.setMessage(R.string.sync_with_contacts_long);
 726                        }
 727						builder.setPositiveButton(R.string.next, (dialog, which) -> requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, REQUEST_SYNC_CONTACTS));
 728						builder.setOnDismissListener(dialog -> requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, REQUEST_SYNC_CONTACTS));
 729						builder.setCancelable(false);
 730						AlertDialog dialog = builder.create();
 731						dialog.setCanceledOnTouchOutside(false);
 732						dialog.setOnShowListener(dialogInterface -> {
 733							final TextView tv =  dialog.findViewById(android.R.id.message);
 734							if (tv != null) {
 735								tv.setMovementMethod(LinkMovementMethod.getInstance());
 736							}
 737						});
 738						dialog.show();
 739					} else {
 740						requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, REQUEST_SYNC_CONTACTS);
 741					}
 742				}
 743			}
 744		}
 745	}
 746
 747	@Override
 748	public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[], @NonNull int[] grantResults) {
 749		if (grantResults.length > 0)
 750			if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
 751				ScanActivity.onRequestPermissionResult(this, requestCode, grantResults);
 752				if (requestCode == REQUEST_SYNC_CONTACTS && xmppConnectionServiceBound) {
 753					if (QuickConversationsService.isQuicksy()) {
 754						setRefreshing(true);
 755					}
 756					xmppConnectionService.loadPhoneContacts();
 757					xmppConnectionService.startContactObserver();
 758				}
 759			}
 760	}
 761
 762	private void configureHomeButton() {
 763		final ActionBar actionBar = getSupportActionBar();
 764		if (actionBar == null) {
 765			return;
 766		}
 767		boolean openConversations = !createdByViewIntent && !xmppConnectionService.isConversationsListEmpty(null);
 768		actionBar.setDisplayHomeAsUpEnabled(openConversations);
 769		actionBar.setDisplayHomeAsUpEnabled(openConversations);
 770
 771	}
 772
 773	@Override
 774	protected void onBackendConnected() {
 775
 776		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M || checkSelfPermission(Manifest.permission.READ_CONTACTS) == PackageManager.PERMISSION_GRANTED) {
 777			xmppConnectionService.getQuickConversationsService().considerSyncBackground(false);
 778		}
 779		if (mPostponedActivityResult != null) {
 780			onActivityResult(mPostponedActivityResult.first, RESULT_OK, mPostponedActivityResult.second);
 781			this.mPostponedActivityResult = null;
 782		}
 783		this.mActivatedAccounts.clear();
 784		for (Account account : xmppConnectionService.getAccounts()) {
 785			if (account.getStatus() != Account.State.DISABLED) {
 786				if (Config.DOMAIN_LOCK != null) {
 787					this.mActivatedAccounts.add(account.getJid().getLocal());
 788				} else {
 789					this.mActivatedAccounts.add(account.getJid().asBareJid().toString());
 790				}
 791			}
 792		}
 793		configureHomeButton();
 794		Intent intent = pendingViewIntent.pop();
 795		if (intent != null && processViewIntent(intent)) {
 796			filter(null);
 797		} else {
 798			if (mSearchEditText != null) {
 799				filter(mSearchEditText.getText().toString());
 800			} else {
 801				filter(null);
 802			}
 803		}
 804		Fragment fragment = getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAG_DIALOG);
 805		if (fragment instanceof OnBackendConnected) {
 806			Log.d(Config.LOGTAG, "calling on backend connected on dialog");
 807			((OnBackendConnected) fragment).onBackendConnected();
 808		}
 809		if (QuickConversationsService.isQuicksy()) {
 810			setRefreshing(xmppConnectionService.getQuickConversationsService().isSynchronizing());
 811		}
 812	}
 813
 814	protected boolean processViewIntent(@NonNull Intent intent) {
 815		final String inviteUri = intent.getStringExtra(EXTRA_INVITE_URI);
 816		if (inviteUri != null) {
 817			Invite invite = new Invite(inviteUri);
 818			if (invite.isJidValid()) {
 819				return invite.invite();
 820			}
 821		}
 822		final String action = intent.getAction();
 823		if (action == null) {
 824			return false;
 825		}
 826		switch (action) {
 827			case Intent.ACTION_SENDTO:
 828			case Intent.ACTION_VIEW:
 829				Uri uri = intent.getData();
 830				if (uri != null) {
 831					Invite invite = new Invite(intent.getData(), intent.getBooleanExtra("scanned", false));
 832					invite.account = intent.getStringExtra("account");
 833					return invite.invite();
 834				} else {
 835					return false;
 836				}
 837		}
 838		return false;
 839	}
 840
 841	private boolean handleJid(Invite invite) {
 842		List<Contact> contacts = xmppConnectionService.findContacts(invite.getJid(), invite.account);
 843		if (invite.isAction(XmppUri.ACTION_JOIN)) {
 844			Conversation muc = xmppConnectionService.findFirstMuc(invite.getJid());
 845			if (muc != null) {
 846				switchToConversationDoNotAppend(muc, invite.getBody());
 847				return true;
 848			} else {
 849				showJoinConferenceDialog(invite.getJid().asBareJid().toString());
 850				return false;
 851			}
 852		} else if (contacts.size() == 0) {
 853			showCreateContactDialog(invite.getJid().toString(), invite);
 854			return false;
 855		} else if (contacts.size() == 1) {
 856			Contact contact = contacts.get(0);
 857			if (!invite.isSafeSource() && invite.hasFingerprints()) {
 858				displayVerificationWarningDialog(contact, invite);
 859			} else {
 860				if (invite.hasFingerprints()) {
 861					if (xmppConnectionService.verifyFingerprints(contact, invite.getFingerprints())) {
 862						Toast.makeText(this, R.string.verified_fingerprints, Toast.LENGTH_SHORT).show();
 863					}
 864				}
 865				if (invite.account != null) {
 866					xmppConnectionService.getShortcutService().report(contact);
 867				}
 868				switchToConversationDoNotAppend(contact, invite.getBody());
 869			}
 870			return true;
 871		} else {
 872			if (mMenuSearchView != null) {
 873				mMenuSearchView.expandActionView();
 874				mSearchEditText.setText("");
 875				mSearchEditText.append(invite.getJid().toString());
 876				filter(invite.getJid().toString());
 877			} else {
 878				mInitialSearchValue.push(invite.getJid().toString());
 879			}
 880			return true;
 881		}
 882	}
 883
 884	private void displayVerificationWarningDialog(final Contact contact, final Invite invite) {
 885		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 886		builder.setTitle(R.string.verify_omemo_keys);
 887		View view = getLayoutInflater().inflate(R.layout.dialog_verify_fingerprints, null);
 888		final CheckBox isTrustedSource = view.findViewById(R.id.trusted_source);
 889		TextView warning = view.findViewById(R.id.warning);
 890		warning.setText(JidDialog.style(this, R.string.verifying_omemo_keys_trusted_source, contact.getJid().asBareJid().toEscapedString(), contact.getDisplayName()));
 891		builder.setView(view);
 892		builder.setPositiveButton(R.string.confirm, (dialog, which) -> {
 893			if (isTrustedSource.isChecked() && invite.hasFingerprints()) {
 894				xmppConnectionService.verifyFingerprints(contact, invite.getFingerprints());
 895			}
 896			switchToConversationDoNotAppend(contact, invite.getBody());
 897		});
 898		builder.setNegativeButton(R.string.cancel, (dialog, which) -> StartConversationActivity.this.finish());
 899		AlertDialog dialog = builder.create();
 900		dialog.setCanceledOnTouchOutside(false);
 901		dialog.setOnCancelListener(dialog1 -> StartConversationActivity.this.finish());
 902		dialog.show();
 903	}
 904
 905	protected void filter(String needle) {
 906		if (xmppConnectionServiceBound) {
 907			this.filterContacts(needle);
 908			this.filterConferences(needle);
 909		}
 910	}
 911
 912	protected void filterContacts(String needle) {
 913		this.contacts.clear();
 914		final List<Account> accounts = xmppConnectionService.getAccounts();
 915		for (Account account : accounts) {
 916			if (account.getStatus() != Account.State.DISABLED) {
 917				for (Contact contact : account.getRoster().getContacts()) {
 918					Presence.Status s = contact.getShownStatus();
 919					if (contact.showInContactList() && contact.match(this, needle)
 920							&& (!this.mHideOfflineContacts
 921							|| (needle != null && !needle.trim().isEmpty())
 922							|| s.compareTo(Presence.Status.OFFLINE) < 0)) {
 923						this.contacts.add(contact);
 924					}
 925				}
 926			}
 927		}
 928		Collections.sort(this.contacts);
 929		mContactsAdapter.notifyDataSetChanged();
 930	}
 931
 932	protected void filterConferences(String needle) {
 933		this.conferences.clear();
 934		for (Account account : xmppConnectionService.getAccounts()) {
 935			if (account.getStatus() != Account.State.DISABLED) {
 936				for (Bookmark bookmark : account.getBookmarks()) {
 937					if (bookmark.match(this, needle)) {
 938						this.conferences.add(bookmark);
 939					}
 940				}
 941			}
 942		}
 943		Collections.sort(this.conferences);
 944		mConferenceAdapter.notifyDataSetChanged();
 945	}
 946
 947	private void onTabChanged() {
 948		@DrawableRes final int fabDrawable;
 949		if (binding.startConversationViewPager.getCurrentItem() == 0) {
 950			fabDrawable = R.drawable.ic_person_add_white_24dp;
 951			binding.speedDial.clearActionItems();
 952		} else {
 953			fabDrawable = R.drawable.ic_group_add_white_24dp;
 954			binding.speedDial.inflate(R.menu.start_conversation_group_fab);
 955		}
 956		binding.speedDial.setMainFabClosedDrawable(ContextCompat.getDrawable(this,fabDrawable));
 957		invalidateOptionsMenu();
 958	}
 959
 960	@Override
 961	public void OnUpdateBlocklist(final Status status) {
 962		refreshUi();
 963	}
 964
 965	@Override
 966	protected void refreshUiReal() {
 967		if (mSearchEditText != null) {
 968			filter(mSearchEditText.getText().toString());
 969		}
 970		configureHomeButton();
 971		if (QuickConversationsService.isQuicksy()) {
 972			setRefreshing(xmppConnectionService.getQuickConversationsService().isSynchronizing());
 973		}
 974	}
 975
 976	@Override
 977	public void onBackPressed() {
 978		if (binding.speedDial.isOpen()) {
 979			binding.speedDial.close();
 980			return;
 981		}
 982		navigateBack();
 983	}
 984
 985	private void navigateBack() {
 986		if (!createdByViewIntent && xmppConnectionService != null && !xmppConnectionService.isConversationsListEmpty(null)) {
 987			Intent intent = new Intent(this, ConversationsActivity.class);
 988			intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
 989			startActivity(intent);
 990		}
 991		finish();
 992	}
 993
 994	@Override
 995	public void onCreateDialogPositiveClick(Spinner spinner, String name) {
 996		if (!xmppConnectionServiceBound) {
 997			return;
 998		}
 999		final Account account = getSelectedAccount(spinner);
1000		if (account == null) {
1001			return;
1002		}
1003		Intent intent = new Intent(getApplicationContext(), ChooseContactActivity.class);
1004		intent.putExtra(ChooseContactActivity.EXTRA_SHOW_ENTER_JID, false);
1005		intent.putExtra(ChooseContactActivity.EXTRA_SELECT_MULTIPLE, true);
1006		intent.putExtra(ChooseContactActivity.EXTRA_GROUP_CHAT_NAME, name.trim());
1007		intent.putExtra(ChooseContactActivity.EXTRA_ACCOUNT, account.getJid().asBareJid().toString());
1008		intent.putExtra(ChooseContactActivity.EXTRA_TITLE_RES_ID, R.string.choose_participants);
1009		startActivityForResult(intent, REQUEST_CREATE_CONFERENCE);
1010	}
1011
1012	@Override
1013	public void onJoinDialogPositiveClick(Dialog dialog, Spinner spinner, AutoCompleteTextView jid, boolean isBookmarkChecked) {
1014		if (!xmppConnectionServiceBound) {
1015			return;
1016		}
1017		final Account account = getSelectedAccount(spinner);
1018		if (account == null) {
1019			return;
1020		}
1021		final Jid conferenceJid;
1022		try {
1023			conferenceJid = Jid.of(jid.getText().toString());
1024		} catch (final IllegalArgumentException e) {
1025			jid.setError(getString(R.string.invalid_jid));
1026			return;
1027		}
1028
1029		if (isBookmarkChecked) {
1030			if (account.hasBookmarkFor(conferenceJid)) {
1031				jid.setError(getString(R.string.bookmark_already_exists));
1032			} else {
1033				final Bookmark bookmark = new Bookmark(account, conferenceJid.asBareJid());
1034				bookmark.setAutojoin(getBooleanPreference("autojoin", R.bool.autojoin));
1035				String nick = conferenceJid.getResource();
1036				if (nick != null && !nick.isEmpty()) {
1037					bookmark.setNick(nick);
1038				}
1039				account.getBookmarks().add(bookmark);
1040				xmppConnectionService.pushBookmarks(account);
1041				final Conversation conversation = xmppConnectionService
1042						.findOrCreateConversation(account, conferenceJid, true, true, true);
1043				bookmark.setConversation(conversation);
1044				dialog.dismiss();
1045				switchToConversation(conversation);
1046			}
1047		} else {
1048			final Conversation conversation = xmppConnectionService
1049					.findOrCreateConversation(account, conferenceJid, true, true, true);
1050			dialog.dismiss();
1051			switchToConversation(conversation);
1052		}
1053	}
1054
1055	@Override
1056	public void onConversationUpdate() {
1057		refreshUi();
1058	}
1059
1060	@Override
1061	public void onRefresh() {
1062		Log.d(Config.LOGTAG,"user requested to refresh");
1063		if (QuickConversationsService.isQuicksy() && xmppConnectionService != null) {
1064			xmppConnectionService.getQuickConversationsService().considerSyncBackground(true);
1065		}
1066	}
1067
1068
1069	private void setRefreshing(boolean refreshing) {
1070		MyListFragment fragment = (MyListFragment) mListPagerAdapter.getItem(0);
1071		if (fragment != null) {
1072			fragment.setRefreshing(refreshing);
1073		}
1074	}
1075
1076	public static class MyListFragment extends SwipeRefreshListFragment {
1077		private AdapterView.OnItemClickListener mOnItemClickListener;
1078		private int mResContextMenu;
1079
1080		public void setContextMenu(final int res) {
1081			this.mResContextMenu = res;
1082		}
1083
1084		@Override
1085		public void onListItemClick(final ListView l, final View v, final int position, final long id) {
1086			if (mOnItemClickListener != null) {
1087				mOnItemClickListener.onItemClick(l, v, position, id);
1088			}
1089		}
1090
1091		public void setOnListItemClickListener(AdapterView.OnItemClickListener l) {
1092			this.mOnItemClickListener = l;
1093		}
1094
1095		@Override
1096		public void onViewCreated(@NonNull final View view, final Bundle savedInstanceState) {
1097			super.onViewCreated(view, savedInstanceState);
1098			registerForContextMenu(getListView());
1099			getListView().setFastScrollEnabled(true);
1100			getListView().setDivider(null);
1101			getListView().setDividerHeight(0);
1102		}
1103
1104		@Override
1105		public void onCreateContextMenu(final ContextMenu menu, final View v, final ContextMenuInfo menuInfo) {
1106			super.onCreateContextMenu(menu, v, menuInfo);
1107			final StartConversationActivity activity = (StartConversationActivity) getActivity();
1108			if (activity == null) {
1109				return;
1110			}
1111			activity.getMenuInflater().inflate(mResContextMenu, menu);
1112			final AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
1113			if (mResContextMenu == R.menu.conference_context) {
1114				activity.conference_context_id = acmi.position;
1115			} else if (mResContextMenu == R.menu.contact_context) {
1116				activity.contact_context_id = acmi.position;
1117				final Contact contact = (Contact) activity.contacts.get(acmi.position);
1118				final MenuItem blockUnblockItem = menu.findItem(R.id.context_contact_block_unblock);
1119				final MenuItem showContactDetailsItem = menu.findItem(R.id.context_contact_details);
1120				final MenuItem deleteContactMenuItem = menu.findItem(R.id.context_delete_contact);
1121				if (contact.isSelf()) {
1122					showContactDetailsItem.setVisible(false);
1123				}
1124				deleteContactMenuItem.setVisible(contact.showInRoster() && !contact.getOption(Contact.Options.SYNCED_VIA_OTHER));
1125				XmppConnection xmpp = contact.getAccount().getXmppConnection();
1126				if (xmpp != null && xmpp.getFeatures().blocking() && !contact.isSelf()) {
1127					if (contact.isBlocked()) {
1128						blockUnblockItem.setTitle(R.string.unblock_contact);
1129					} else {
1130						blockUnblockItem.setTitle(R.string.block_contact);
1131					}
1132				} else {
1133					blockUnblockItem.setVisible(false);
1134				}
1135			}
1136		}
1137
1138		@Override
1139		public boolean onContextItemSelected(final MenuItem item) {
1140			StartConversationActivity activity = (StartConversationActivity) getActivity();
1141			if (activity == null) {
1142				return true;
1143			}
1144			switch (item.getItemId()) {
1145				case R.id.context_contact_details:
1146					activity.openDetailsForContact();
1147					break;
1148				case R.id.context_show_qr:
1149					activity.showQrForContact();
1150					break;
1151				case R.id.context_contact_block_unblock:
1152					activity.toggleContactBlock();
1153					break;
1154				case R.id.context_delete_contact:
1155					activity.deleteContact();
1156					break;
1157				case R.id.context_join_conference:
1158					activity.openConversationForBookmark();
1159					break;
1160				case R.id.context_share_uri:
1161					activity.shareBookmarkUri();
1162					break;
1163				case R.id.context_delete_conference:
1164					activity.deleteConference();
1165			}
1166			return true;
1167		}
1168	}
1169
1170	public class ListPagerAdapter extends PagerAdapter {
1171		private final FragmentManager fragmentManager;
1172		private final MyListFragment[] fragments;
1173
1174		ListPagerAdapter(FragmentManager fm) {
1175			fragmentManager = fm;
1176			fragments = new MyListFragment[2];
1177		}
1178
1179		public void requestFocus(int pos) {
1180			if (fragments.length > pos) {
1181				fragments[pos].getListView().requestFocus();
1182			}
1183		}
1184
1185		@Override
1186		public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {
1187			FragmentTransaction trans = fragmentManager.beginTransaction();
1188			trans.remove(fragments[position]);
1189			trans.commit();
1190			fragments[position] = null;
1191		}
1192
1193		@NonNull
1194		@Override
1195		public Fragment instantiateItem(@NonNull ViewGroup container, int position) {
1196			final Fragment fragment = getItem(position);
1197			final FragmentTransaction trans = fragmentManager.beginTransaction();
1198			trans.add(container.getId(), fragment, "fragment:" + position);
1199			try {
1200				trans.commit();
1201			} catch (IllegalStateException e) {
1202				//ignore
1203			}
1204			return fragment;
1205		}
1206
1207		@Override
1208		public int getCount() {
1209			return fragments.length;
1210		}
1211
1212		@Override
1213		public boolean isViewFromObject(@NonNull View view, @NonNull Object fragment) {
1214			return ((Fragment) fragment).getView() == view;
1215		}
1216
1217		@Nullable
1218		@Override
1219		public CharSequence getPageTitle(int position) {
1220			switch (position) {
1221				case 0:
1222					return getResources().getString(R.string.contacts);
1223				case 1:
1224					return getResources().getString(R.string.conferences);
1225				default:
1226					return super.getPageTitle(position);
1227			}
1228		}
1229
1230		Fragment getItem(int position) {
1231			if (fragments[position] == null) {
1232				final MyListFragment listFragment = new MyListFragment();
1233				if (position == 1) {
1234					listFragment.setListAdapter(mConferenceAdapter);
1235					listFragment.setContextMenu(R.menu.conference_context);
1236					listFragment.setOnListItemClickListener((arg0, arg1, p, arg3) -> openConversationForBookmark(p));
1237				} else {
1238					listFragment.setListAdapter(mContactsAdapter);
1239					listFragment.setContextMenu(R.menu.contact_context);
1240					listFragment.setOnListItemClickListener((arg0, arg1, p, arg3) -> openConversationForContact(p));
1241					if (QuickConversationsService.isQuicksy()) {
1242						listFragment.setOnRefreshListener(StartConversationActivity.this);
1243					}
1244				}
1245				fragments[position] = listFragment;
1246			}
1247			return fragments[position];
1248		}
1249	}
1250
1251	public static void addInviteUri(Intent to, Intent from) {
1252		if (from != null && from.hasExtra(EXTRA_INVITE_URI)) {
1253			to.putExtra(EXTRA_INVITE_URI, from.getStringExtra(EXTRA_INVITE_URI));
1254		}
1255	}
1256
1257	private class Invite extends XmppUri {
1258
1259		public String account;
1260
1261		public Invite(final Uri uri) {
1262			super(uri);
1263		}
1264
1265		public Invite(final String uri) {
1266			super(uri);
1267		}
1268
1269		public Invite(Uri uri, boolean safeSource) {
1270			super(uri, safeSource);
1271		}
1272
1273		boolean invite() {
1274			if (!isJidValid()) {
1275				Toast.makeText(StartConversationActivity.this, R.string.invalid_jid, Toast.LENGTH_SHORT).show();
1276				return false;
1277			}
1278			if (getJid() != null) {
1279				return handleJid(this);
1280			}
1281			return false;
1282		}
1283	}
1284}