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