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