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.v4.content.ContextCompat;
  13import android.support.v7.app.AlertDialog;
  14import android.app.Dialog;
  15import android.app.PendingIntent;
  16import android.content.ActivityNotFoundException;
  17import android.content.Context;
  18import android.content.DialogInterface;
  19import android.content.DialogInterface.OnClickListener;
  20import android.content.Intent;
  21import android.content.pm.PackageManager;
  22import android.net.Uri;
  23import android.os.Build;
  24import android.os.Bundle;
  25import android.support.v4.app.Fragment;
  26import android.support.v4.app.FragmentManager;
  27import android.support.v4.app.FragmentTransaction;
  28import android.support.v4.app.ListFragment;
  29import android.support.v4.view.MenuItemCompat;
  30import android.support.v4.view.PagerAdapter;
  31import android.support.v4.view.ViewPager;
  32import android.support.v7.app.ActionBar;
  33import android.text.Editable;
  34import android.text.SpannableString;
  35import android.text.Spanned;
  36import android.text.TextWatcher;
  37import android.text.style.TypefaceSpan;
  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.AdapterView.OnItemClickListener;
  51import android.widget.ArrayAdapter;
  52import android.widget.AutoCompleteTextView;
  53import android.widget.CheckBox;
  54import android.widget.Checkable;
  55import android.widget.EditText;
  56import android.widget.ListView;
  57import android.widget.Spinner;
  58import android.widget.TextView;
  59import android.widget.Toast;
  60
  61import java.util.ArrayList;
  62import java.util.Arrays;
  63import java.util.Collection;
  64import java.util.Collections;
  65import java.util.List;
  66import java.util.concurrent.atomic.AtomicBoolean;
  67
  68import eu.siacs.conversations.Config;
  69import eu.siacs.conversations.R;
  70import eu.siacs.conversations.databinding.ActivityStartConversationBinding;
  71import eu.siacs.conversations.entities.Account;
  72import eu.siacs.conversations.entities.Bookmark;
  73import eu.siacs.conversations.entities.Contact;
  74import eu.siacs.conversations.entities.Conversation;
  75import eu.siacs.conversations.entities.ListItem;
  76import eu.siacs.conversations.entities.Presence;
  77import eu.siacs.conversations.services.XmppConnectionService.OnRosterUpdate;
  78import eu.siacs.conversations.ui.adapter.KnownHostsAdapter;
  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.DelayedHintHelper;
  83import eu.siacs.conversations.utils.XmppUri;
  84import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
  85import eu.siacs.conversations.xmpp.XmppConnection;
  86import rocks.xmpp.addr.Jid;
  87
  88public class StartConversationActivity extends XmppActivity implements OnRosterUpdate, OnUpdateBlocklist, CreateConferenceDialog.CreateConferenceDialogListener, JoinConferenceDialog.JoinConferenceDialogListener {
  89
  90	private final int REQUEST_SYNC_CONTACTS = 0x28cf;
  91	private final int REQUEST_CREATE_CONFERENCE = 0x39da;
  92	public int conference_context_id;
  93	public int contact_context_id;
  94	private ListPagerAdapter mListPagerAdapter;
  95	private List<ListItem> contacts = new ArrayList<>();
  96	private ListItemAdapter mContactsAdapter;
  97	private List<ListItem> conferences = new ArrayList<>();
  98	private ListItemAdapter mConferenceAdapter;
  99	private List<String> mActivatedAccounts = new ArrayList<>();
 100	private Invite mPendingInvite = null;
 101	private EditText mSearchEditText;
 102	private AtomicBoolean mRequestedContactsPermission = new AtomicBoolean(false);
 103	private boolean mHideOfflineContacts = false;
 104	private MenuItem.OnActionExpandListener mOnActionExpandListener = new MenuItem.OnActionExpandListener() {
 105
 106		@Override
 107		public boolean onMenuItemActionExpand(MenuItem item) {
 108			mSearchEditText.post(() -> {
 109				mSearchEditText.requestFocus();
 110				InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
 111				imm.showSoftInput(mSearchEditText, InputMethodManager.SHOW_IMPLICIT);
 112			});
 113
 114			return true;
 115		}
 116
 117		@Override
 118		public boolean onMenuItemActionCollapse(MenuItem item) {
 119			hideKeyboard();
 120			mSearchEditText.setText("");
 121			filter(null);
 122			return true;
 123		}
 124	};
 125	private TextWatcher mSearchTextWatcher = new TextWatcher() {
 126
 127		@Override
 128		public void afterTextChanged(Editable editable) {
 129			filter(editable.toString());
 130		}
 131
 132		@Override
 133		public void beforeTextChanged(CharSequence s, int start, int count,
 134		                              int after) {
 135		}
 136
 137		@Override
 138		public void onTextChanged(CharSequence s, int start, int before, int count) {
 139		}
 140	};
 141	private TextView.OnEditorActionListener mSearchDone = new TextView.OnEditorActionListener() {
 142		@Override
 143		public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
 144			int pos = getSupportActionBar().getSelectedNavigationIndex();
 145			if (pos == 0) {
 146				if (contacts.size() == 1) {
 147					openConversationForContact((Contact) contacts.get(0));
 148					return true;
 149				}
 150			} else {
 151				if (conferences.size() == 1) {
 152					openConversationsForBookmark((Bookmark) conferences.get(0));
 153					return true;
 154				}
 155			}
 156			hideKeyboard();
 157			mListPagerAdapter.requestFocus(pos);
 158			return true;
 159		}
 160	};
 161	private MenuItem mMenuSearchView;
 162	private ListItemAdapter.OnTagClickedListener mOnTagClickedListener = new ListItemAdapter.OnTagClickedListener() {
 163		@Override
 164		public void onTagClicked(String tag) {
 165			if (mMenuSearchView != null) {
 166				mMenuSearchView.expandActionView();
 167				mSearchEditText.setText("");
 168				mSearchEditText.append(tag);
 169				filter(tag);
 170			}
 171		}
 172	};
 173	private String mInitialJid;
 174	private Pair<Integer, Intent> mPostponedActivityResult;
 175	private Toast mToast;
 176	private UiCallback<Conversation> mAdhocConferenceCallback = new UiCallback<Conversation>() {
 177		@Override
 178		public void success(final Conversation conversation) {
 179			runOnUiThread(() -> {
 180				hideToast();
 181				switchToConversation(conversation);
 182			});
 183		}
 184
 185		@Override
 186		public void error(final int errorCode, Conversation object) {
 187			runOnUiThread(() -> replaceToast(getString(errorCode)));
 188		}
 189
 190		@Override
 191		public void userInputRequried(PendingIntent pi, Conversation object) {
 192
 193		}
 194	};
 195	private ActivityStartConversationBinding binding;
 196	private ActionBar.TabListener mTabListener = new ActionBar.TabListener() {
 197
 198		@Override
 199		public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction ft) {
 200			return;
 201		}
 202
 203		@Override
 204		public void onTabSelected(ActionBar.Tab tab, FragmentTransaction ft) {
 205			binding.startConversationViewPager.setCurrentItem(tab.getPosition());
 206			onTabChanged();
 207		}
 208
 209		@Override
 210		public void onTabReselected(ActionBar.Tab tab, FragmentTransaction ft) {
 211			return;
 212		}
 213	};
 214	private ViewPager.SimpleOnPageChangeListener mOnPageChangeListener = new ViewPager.SimpleOnPageChangeListener() {
 215		@Override
 216		public void onPageSelected(int position) {
 217			ActionBar actionBar = getSupportActionBar();
 218			if (actionBar != null) {
 219				actionBar.setSelectedNavigationItem(position);
 220			}
 221			onTabChanged();
 222		}
 223	};
 224
 225	public static void populateAccountSpinner(Context context, List<String> accounts, Spinner spinner) {
 226		if (accounts.size() > 0) {
 227			ArrayAdapter<String> adapter = new ArrayAdapter<>(context, R.layout.simple_list_item, accounts);
 228			adapter.setDropDownViewResource(R.layout.simple_list_item);
 229			spinner.setAdapter(adapter);
 230			spinner.setEnabled(true);
 231		} else {
 232			ArrayAdapter<String> adapter = new ArrayAdapter<>(context,
 233					R.layout.simple_list_item,
 234					Arrays.asList(context.getString(R.string.no_accounts)));
 235			adapter.setDropDownViewResource(R.layout.simple_list_item);
 236			spinner.setAdapter(adapter);
 237			spinner.setEnabled(false);
 238		}
 239	}
 240
 241	public static void launch(Context context) {
 242		final Intent intent = new Intent(context, StartConversationActivity.class);
 243		context.startActivity(intent);
 244	}
 245
 246	protected void hideToast() {
 247		if (mToast != null) {
 248			mToast.cancel();
 249		}
 250	}
 251
 252	protected void replaceToast(String msg) {
 253		hideToast();
 254		mToast = Toast.makeText(this, msg, Toast.LENGTH_LONG);
 255		mToast.show();
 256	}
 257
 258	@Override
 259	public void onRosterUpdate() {
 260		this.refreshUi();
 261	}
 262
 263	@Override
 264	public void onCreate(Bundle savedInstanceState) {
 265		super.onCreate(savedInstanceState);
 266		new EmojiService(this).init();
 267		this.binding = DataBindingUtil.setContentView(this, R.layout.activity_start_conversation);
 268		this.binding.fab.setOnClickListener((v) -> {
 269			if (getSupportActionBar().getSelectedNavigationIndex() == 0) {
 270				String searchString = mSearchEditText != null ? mSearchEditText.getText().toString() : null;
 271				if (searchString != null && !searchString.trim().isEmpty()) {
 272					try {
 273						Jid jid = Jid.of(searchString);
 274						if (jid.getLocal() != null && jid.isBareJid() && jid.getDomain().contains(".")) {
 275							showCreateContactDialog(jid.toString(), null);
 276							return;
 277						}
 278					} catch (IllegalArgumentException ignored) {
 279						//ignore and fall through
 280					}
 281				}
 282				showCreateContactDialog(null, null);
 283			} else {
 284				showCreateConferenceDialog();
 285			}
 286		});
 287		ActionBar actionBar = getSupportActionBar();
 288		actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
 289
 290		ActionBar.Tab mContactsTab = actionBar.newTab().setText(R.string.contacts).setTabListener(mTabListener);
 291		ActionBar.Tab mConferencesTab = actionBar.newTab().setText(R.string.conferences).setTabListener(mTabListener);
 292		actionBar.addTab(mContactsTab);
 293		actionBar.addTab(mConferencesTab);
 294
 295		binding.startConversationViewPager.setOnPageChangeListener(mOnPageChangeListener);
 296		mListPagerAdapter = new ListPagerAdapter(getSupportFragmentManager());
 297		binding.startConversationViewPager.setAdapter(mListPagerAdapter);
 298
 299		mConferenceAdapter = new ListItemAdapter(this, conferences);
 300		mContactsAdapter = new ListItemAdapter(this, contacts);
 301		mContactsAdapter.setOnTagClickedListener(this.mOnTagClickedListener);
 302		this.mHideOfflineContacts = getPreferences().getBoolean("hide_offline", false);
 303
 304	}
 305
 306	@Override
 307	public void onStart() {
 308		super.onStart();
 309		final int theme = findTheme();
 310		if (this.mTheme != theme) {
 311			recreate();
 312		} else {
 313			Intent i = getIntent();
 314			if (i == null || !i.hasExtra(WelcomeActivity.EXTRA_INVITE_URI)) {
 315				askForContactsPermissions();
 316			}
 317		}
 318		mConferenceAdapter.refreshSettings();
 319		mContactsAdapter.refreshSettings();
 320	}
 321
 322	@Override
 323	public void onNewIntent(Intent intent) {
 324		if (xmppConnectionServiceBound) {
 325			handleIntent(intent);
 326		} else {
 327			setIntent(intent);
 328		}
 329	}
 330
 331	protected void openConversationForContact(int position) {
 332		Contact contact = (Contact) contacts.get(position);
 333		openConversationForContact(contact);
 334	}
 335
 336	protected void openConversationForContact(Contact contact) {
 337		Conversation conversation = xmppConnectionService.findOrCreateConversation(contact.getAccount(), contact.getJid(), false, true);
 338		switchToConversation(conversation);
 339	}
 340
 341	protected void openConversationForContact() {
 342		int position = contact_context_id;
 343		openConversationForContact(position);
 344	}
 345
 346	protected void openConversationForBookmark() {
 347		openConversationForBookmark(conference_context_id);
 348	}
 349
 350	protected void openConversationForBookmark(int position) {
 351		Bookmark bookmark = (Bookmark) conferences.get(position);
 352		openConversationsForBookmark(bookmark);
 353	}
 354
 355	protected void shareBookmarkUri() {
 356		shareBookmarkUri(conference_context_id);
 357	}
 358
 359	protected void shareBookmarkUri(int position) {
 360		Bookmark bookmark = (Bookmark) conferences.get(position);
 361		Intent shareIntent = new Intent();
 362		shareIntent.setAction(Intent.ACTION_SEND);
 363		shareIntent.putExtra(Intent.EXTRA_TEXT, "xmpp:" + bookmark.getJid().asBareJid().toEscapedString() + "?join");
 364		shareIntent.setType("text/plain");
 365		try {
 366			startActivity(Intent.createChooser(shareIntent, getText(R.string.share_uri_with)));
 367		} catch (ActivityNotFoundException e) {
 368			Toast.makeText(this, R.string.no_application_to_share_uri, Toast.LENGTH_SHORT).show();
 369		}
 370	}
 371
 372	protected void openConversationsForBookmark(Bookmark bookmark) {
 373		Jid jid = bookmark.getJid();
 374		if (jid == null) {
 375			Toast.makeText(this, R.string.invalid_jid, Toast.LENGTH_SHORT).show();
 376			return;
 377		}
 378		Conversation conversation = xmppConnectionService.findOrCreateConversation(bookmark.getAccount(), jid, true, true, true);
 379		bookmark.setConversation(conversation);
 380		if (!bookmark.autojoin() && getPreferences().getBoolean("autojoin", getResources().getBoolean(R.bool.autojoin))) {
 381			bookmark.setAutojoin(true);
 382			xmppConnectionService.pushBookmarks(bookmark.getAccount());
 383		}
 384		switchToConversation(conversation);
 385	}
 386
 387	protected void openDetailsForContact() {
 388		int position = contact_context_id;
 389		Contact contact = (Contact) contacts.get(position);
 390		switchToContactDetails(contact);
 391	}
 392
 393	protected void toggleContactBlock() {
 394		final int position = contact_context_id;
 395		BlockContactDialog.show(this, (Contact) contacts.get(position));
 396	}
 397
 398	protected void deleteContact() {
 399		final int position = contact_context_id;
 400		final Contact contact = (Contact) contacts.get(position);
 401		final AlertDialog.Builder builder = new AlertDialog.Builder(this);
 402		builder.setNegativeButton(R.string.cancel, null);
 403		builder.setTitle(R.string.action_delete_contact);
 404		builder.setMessage(getString(R.string.remove_contact_text,
 405				contact.getJid()));
 406		builder.setPositiveButton(R.string.delete, new OnClickListener() {
 407
 408			@Override
 409			public void onClick(DialogInterface dialog, int which) {
 410				xmppConnectionService.deleteContactOnServer(contact);
 411				filter(mSearchEditText.getText().toString());
 412			}
 413		});
 414		builder.create().show();
 415	}
 416
 417	protected void deleteConference() {
 418		int position = conference_context_id;
 419		final Bookmark bookmark = (Bookmark) conferences.get(position);
 420
 421		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 422		builder.setNegativeButton(R.string.cancel, null);
 423		builder.setTitle(R.string.delete_bookmark);
 424		builder.setMessage(getString(R.string.remove_bookmark_text,
 425				bookmark.getJid()));
 426		builder.setPositiveButton(R.string.delete, new OnClickListener() {
 427
 428			@Override
 429			public void onClick(DialogInterface dialog, int which) {
 430				bookmark.setConversation(null);
 431				Account account = bookmark.getAccount();
 432				account.getBookmarks().remove(bookmark);
 433				xmppConnectionService.pushBookmarks(account);
 434				filter(mSearchEditText.getText().toString());
 435			}
 436		});
 437		builder.create().show();
 438
 439	}
 440
 441	@SuppressLint("InflateParams")
 442	protected void showCreateContactDialog(final String prefilledJid, final Invite invite) {
 443		FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
 444		Fragment prev = getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAG_DIALOG);
 445		if (prev != null) {
 446			ft.remove(prev);
 447		}
 448		ft.addToBackStack(null);
 449		EnterJidDialog dialog = EnterJidDialog.newInstance(
 450				mActivatedAccounts,
 451				getString(R.string.dialog_title_create_contact),
 452				getString(R.string.create),
 453				prefilledJid,
 454				null,
 455				invite == null || !invite.hasFingerprints()
 456		);
 457
 458		dialog.setOnEnterJidDialogPositiveListener((accountJid, contactJid) -> {
 459			if (!xmppConnectionServiceBound) {
 460				return false;
 461			}
 462
 463			final Account account = xmppConnectionService.findAccountByJid(accountJid);
 464			if (account == null) {
 465				return true;
 466			}
 467
 468			final Contact contact = account.getRoster().getContact(contactJid);
 469			if (invite != null && invite.getName() != null) {
 470				contact.setServerName(invite.getName());
 471			}
 472			if (contact.isSelf()) {
 473				switchToConversation(contact, null);
 474				return true;
 475			} else if (contact.showInRoster()) {
 476				throw new EnterJidDialog.JidError(getString(R.string.contact_already_exists));
 477			} else {
 478				xmppConnectionService.createContact(contact, true);
 479				if (invite != null && invite.hasFingerprints()) {
 480					xmppConnectionService.verifyFingerprints(contact, invite.getFingerprints());
 481				}
 482				switchToConversation(contact, invite == null ? null : invite.getBody());
 483				return true;
 484			}
 485		});
 486		dialog.show(ft, FRAGMENT_TAG_DIALOG);
 487	}
 488
 489	@SuppressLint("InflateParams")
 490	protected void showJoinConferenceDialog(final String prefilledJid) {
 491		FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
 492		Fragment prev = getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAG_DIALOG);
 493		if (prev != null) {
 494			ft.remove(prev);
 495		}
 496		ft.addToBackStack(null);
 497		JoinConferenceDialog joinConferenceFragment = JoinConferenceDialog.newInstance(prefilledJid, mActivatedAccounts);
 498		joinConferenceFragment.show(ft, FRAGMENT_TAG_DIALOG);
 499	}
 500
 501	private void showCreateConferenceDialog() {
 502		FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
 503		Fragment prev = getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAG_DIALOG);
 504		if (prev != null) {
 505			ft.remove(prev);
 506		}
 507		ft.addToBackStack(null);
 508		CreateConferenceDialog createConferenceFragment = CreateConferenceDialog.newInstance(mActivatedAccounts);
 509		createConferenceFragment.show(ft, FRAGMENT_TAG_DIALOG);
 510	}
 511
 512	private Account getSelectedAccount(Spinner spinner) {
 513		if (!spinner.isEnabled()) {
 514			return null;
 515		}
 516		Jid jid;
 517		try {
 518			if (Config.DOMAIN_LOCK != null) {
 519				jid = Jid.of((String) spinner.getSelectedItem(), Config.DOMAIN_LOCK, null);
 520			} else {
 521				jid = Jid.of((String) spinner.getSelectedItem());
 522			}
 523		} catch (final IllegalArgumentException e) {
 524			return null;
 525		}
 526		return xmppConnectionService.findAccountByJid(jid);
 527	}
 528
 529	protected void switchToConversation(Contact contact, String body) {
 530		Conversation conversation = xmppConnectionService
 531				.findOrCreateConversation(contact.getAccount(),
 532						contact.getJid(), false, true);
 533		switchToConversation(conversation, body, false);
 534	}
 535
 536	@Override
 537	public boolean onCreateOptionsMenu(Menu menu) {
 538		getMenuInflater().inflate(R.menu.start_conversation, menu);
 539		MenuItem menuHideOffline = menu.findItem(R.id.action_hide_offline);
 540		MenuItem joinGroupChat = menu.findItem(R.id.action_join_conference);
 541		MenuItem qrCodeScanMenuItem = menu.findItem(R.id.action_scan_qr_code);
 542		ActionBar bar = getSupportActionBar();
 543		joinGroupChat.setVisible(bar != null && bar.getSelectedNavigationIndex() == 1);
 544		qrCodeScanMenuItem.setVisible(isCameraFeatureAvailable());
 545		menuHideOffline.setChecked(this.mHideOfflineContacts);
 546		mMenuSearchView = menu.findItem(R.id.action_search);
 547		mMenuSearchView.setOnActionExpandListener(mOnActionExpandListener);
 548		View mSearchView = mMenuSearchView.getActionView();
 549		mSearchEditText = mSearchView.findViewById(R.id.search_field);
 550		mSearchEditText.addTextChangedListener(mSearchTextWatcher);
 551		mSearchEditText.setOnEditorActionListener(mSearchDone);
 552		if (mInitialJid != null) {
 553			mMenuSearchView.expandActionView();
 554			mSearchEditText.append(mInitialJid);
 555			filter(mInitialJid);
 556		}
 557		return super.onCreateOptionsMenu(menu);
 558	}
 559
 560	@Override
 561	public boolean onOptionsItemSelected(MenuItem item) {
 562		switch (item.getItemId()) {
 563			case R.id.action_join_conference:
 564				showJoinConferenceDialog(null);
 565				return true;
 566			case R.id.action_scan_qr_code:
 567				UriHandlerActivity.scan(this);
 568				return true;
 569			case R.id.action_hide_offline:
 570				mHideOfflineContacts = !item.isChecked();
 571				getPreferences().edit().putBoolean("hide_offline", mHideOfflineContacts).commit();
 572				if (mSearchEditText != null) {
 573					filter(mSearchEditText.getText().toString());
 574				}
 575				invalidateOptionsMenu();
 576		}
 577		return super.onOptionsItemSelected(item);
 578	}
 579
 580	@Override
 581	public boolean onKeyUp(int keyCode, KeyEvent event) {
 582		if (keyCode == KeyEvent.KEYCODE_SEARCH && !event.isLongPress()) {
 583			openSearch();
 584			return true;
 585		}
 586		int c = event.getUnicodeChar();
 587		if (c > 32) {
 588			if (mSearchEditText != null && !mSearchEditText.isFocused()) {
 589				openSearch();
 590				mSearchEditText.append(Character.toString((char) c));
 591				return true;
 592			}
 593		}
 594		return super.onKeyUp(keyCode, event);
 595	}
 596
 597	private void openSearch() {
 598		if (mMenuSearchView != null) {
 599			mMenuSearchView.expandActionView();
 600		}
 601	}
 602
 603	@Override
 604	public void onActivityResult(int requestCode, int resultCode, Intent intent) {
 605		if (resultCode == RESULT_OK) {
 606			if (xmppConnectionServiceBound) {
 607				this.mPostponedActivityResult = null;
 608				if (requestCode == REQUEST_CREATE_CONFERENCE) {
 609					Account account = extractAccount(intent);
 610					final String subject = intent.getStringExtra("subject");
 611					List<Jid> jids = new ArrayList<>();
 612					if (intent.getBooleanExtra("multiple", false)) {
 613						String[] toAdd = intent.getStringArrayExtra("contacts");
 614						for (String item : toAdd) {
 615							try {
 616								jids.add(Jid.of(item));
 617							} catch (IllegalArgumentException e) {
 618								//ignored
 619							}
 620						}
 621					} else {
 622						try {
 623							jids.add(Jid.of(intent.getStringExtra("contact")));
 624						} catch (Exception e) {
 625							//ignored
 626						}
 627					}
 628					if (account != null && jids.size() > 0) {
 629						if (xmppConnectionService.createAdhocConference(account, subject, jids, mAdhocConferenceCallback)) {
 630							mToast = Toast.makeText(this, R.string.creating_conference, Toast.LENGTH_LONG);
 631							mToast.show();
 632						}
 633					}
 634				}
 635			} else {
 636				this.mPostponedActivityResult = new Pair<>(requestCode, intent);
 637			}
 638		}
 639		super.onActivityResult(requestCode, requestCode, intent);
 640	}
 641
 642	private void askForContactsPermissions() {
 643		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 644			if (checkSelfPermission(Manifest.permission.READ_CONTACTS) != PackageManager.PERMISSION_GRANTED) {
 645				if (mRequestedContactsPermission.compareAndSet(false, true)) {
 646					if (shouldShowRequestPermissionRationale(Manifest.permission.READ_CONTACTS)) {
 647						AlertDialog.Builder builder = new AlertDialog.Builder(this);
 648						builder.setTitle(R.string.sync_with_contacts);
 649						builder.setMessage(R.string.sync_with_contacts_long);
 650						builder.setPositiveButton(R.string.next, new OnClickListener() {
 651							@Override
 652							public void onClick(DialogInterface dialog, int which) {
 653								if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 654									requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, REQUEST_SYNC_CONTACTS);
 655								}
 656							}
 657						});
 658						if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
 659							builder.setOnDismissListener(new DialogInterface.OnDismissListener() {
 660								@Override
 661								public void onDismiss(DialogInterface dialog) {
 662									if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 663										requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, REQUEST_SYNC_CONTACTS);
 664									}
 665								}
 666							});
 667						}
 668						builder.create().show();
 669					} else {
 670						requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, 0);
 671					}
 672				}
 673			}
 674		}
 675	}
 676
 677	@Override
 678	public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[], @NonNull int[] grantResults) {
 679		if (grantResults.length > 0)
 680			if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
 681				ScanActivity.onRequestPermissionResult(this, requestCode, grantResults);
 682				if (requestCode == REQUEST_SYNC_CONTACTS && xmppConnectionServiceBound) {
 683					xmppConnectionService.loadPhoneContacts();
 684				}
 685			}
 686	}
 687
 688	@Override
 689	protected void onBackendConnected() {
 690		if (mPostponedActivityResult != null) {
 691			onActivityResult(mPostponedActivityResult.first, RESULT_OK, mPostponedActivityResult.second);
 692			this.mPostponedActivityResult = null;
 693		}
 694		this.mActivatedAccounts.clear();
 695		for (Account account : xmppConnectionService.getAccounts()) {
 696			if (account.getStatus() != Account.State.DISABLED) {
 697				if (Config.DOMAIN_LOCK != null) {
 698					this.mActivatedAccounts.add(account.getJid().getLocal());
 699				} else {
 700					this.mActivatedAccounts.add(account.getJid().asBareJid().toString());
 701				}
 702			}
 703		}
 704		final Intent intent = getIntent();
 705		final ActionBar ab = getSupportActionBar();
 706		boolean init = intent != null && intent.getBooleanExtra("init", false);
 707		boolean noConversations = xmppConnectionService.getConversations().size() == 0;
 708		if ((init || noConversations) && ab != null) {
 709			ab.setDisplayShowHomeEnabled(false);
 710			ab.setDisplayHomeAsUpEnabled(false);
 711			ab.setHomeButtonEnabled(false);
 712		}
 713		if (this.mPendingInvite != null) {
 714			mPendingInvite.invite();
 715			this.mPendingInvite = null;
 716			filter(null);
 717		} else if (!handleIntent(getIntent())) {
 718			if (mSearchEditText != null) {
 719				filter(mSearchEditText.getText().toString());
 720			} else {
 721				filter(null);
 722			}
 723		} else {
 724			filter(null);
 725		}
 726		setIntent(null);
 727		Fragment fragment = getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAG_DIALOG);
 728		if (fragment != null && fragment instanceof OnBackendConnected) {
 729			Log.d(Config.LOGTAG,"calling on backend connected on dialog");
 730			((OnBackendConnected) fragment).onBackendConnected();
 731		}
 732	}
 733
 734	protected boolean handleIntent(Intent intent) {
 735		if (intent == null) {
 736			return false;
 737		}
 738		final String inviteUri = intent.getStringExtra(WelcomeActivity.EXTRA_INVITE_URI);
 739		if (inviteUri != null) {
 740			Invite invite = new Invite(inviteUri);
 741			if (invite.isJidValid()) {
 742				return invite.invite();
 743			}
 744		}
 745		if (intent.getAction() == null) {
 746			return false;
 747		}
 748		switch (intent.getAction()) {
 749			case Intent.ACTION_SENDTO:
 750			case Intent.ACTION_VIEW:
 751				Uri uri = intent.getData();
 752				if (uri != null) {
 753					Invite invite = new Invite(intent.getData(), intent.getBooleanExtra("scanned", false));
 754					invite.account = intent.getStringExtra("account");
 755					return invite.invite();
 756				} else {
 757					return false;
 758				}
 759		}
 760		return false;
 761	}
 762
 763	private boolean handleJid(Invite invite) {
 764		List<Contact> contacts = xmppConnectionService.findContacts(invite.getJid(), invite.account);
 765		if (invite.isAction(XmppUri.ACTION_JOIN)) {
 766			Conversation muc = xmppConnectionService.findFirstMuc(invite.getJid());
 767			if (muc != null) {
 768				switchToConversation(muc, invite.getBody(), false);
 769				return true;
 770			} else {
 771				showJoinConferenceDialog(invite.getJid().asBareJid().toString());
 772				return false;
 773			}
 774		} else if (contacts.size() == 0) {
 775			showCreateContactDialog(invite.getJid().toString(), invite);
 776			return false;
 777		} else if (contacts.size() == 1) {
 778			Contact contact = contacts.get(0);
 779			if (!invite.isSafeSource() && invite.hasFingerprints()) {
 780				displayVerificationWarningDialog(contact, invite);
 781			} else {
 782				if (invite.hasFingerprints()) {
 783					if (xmppConnectionService.verifyFingerprints(contact, invite.getFingerprints())) {
 784						Toast.makeText(this, R.string.verified_fingerprints, Toast.LENGTH_SHORT).show();
 785					}
 786				}
 787				if (invite.account != null) {
 788					xmppConnectionService.getShortcutService().report(contact);
 789				}
 790				switchToConversation(contact, invite.getBody());
 791			}
 792			return true;
 793		} else {
 794			if (mMenuSearchView != null) {
 795				mMenuSearchView.expandActionView();
 796				mSearchEditText.setText("");
 797				mSearchEditText.append(invite.getJid().toString());
 798				filter(invite.getJid().toString());
 799			} else {
 800				mInitialJid = invite.getJid().toString();
 801			}
 802			return true;
 803		}
 804	}
 805
 806	private void displayVerificationWarningDialog(final Contact contact, final Invite invite) {
 807		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 808		builder.setTitle(R.string.verify_omemo_keys);
 809		View view = getLayoutInflater().inflate(R.layout.dialog_verify_fingerprints, null);
 810		final CheckBox isTrustedSource = (CheckBox) view.findViewById(R.id.trusted_source);
 811		TextView warning = (TextView) view.findViewById(R.id.warning);
 812		String jid = contact.getJid().asBareJid().toString();
 813		SpannableString spannable = new SpannableString(getString(R.string.verifying_omemo_keys_trusted_source, jid, contact.getDisplayName()));
 814		int start = spannable.toString().indexOf(jid);
 815		if (start >= 0) {
 816			spannable.setSpan(new TypefaceSpan("monospace"), start, start + jid.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
 817		}
 818		warning.setText(spannable);
 819		builder.setView(view);
 820		builder.setPositiveButton(R.string.confirm, (dialog, which) -> {
 821			if (isTrustedSource.isChecked() && invite.hasFingerprints()) {
 822				xmppConnectionService.verifyFingerprints(contact, invite.getFingerprints());
 823			}
 824			switchToConversation(contact, invite.getBody());
 825		});
 826		builder.setNegativeButton(R.string.cancel, (dialog, which) -> StartConversationActivity.this.finish());
 827		AlertDialog dialog = builder.create();
 828		dialog.setCanceledOnTouchOutside(false);
 829		dialog.setOnCancelListener(dialog1 -> StartConversationActivity.this.finish());
 830		dialog.show();
 831	}
 832
 833	protected void filter(String needle) {
 834		if (xmppConnectionServiceBound) {
 835			this.filterContacts(needle);
 836			this.filterConferences(needle);
 837		}
 838	}
 839
 840	protected void filterContacts(String needle) {
 841		this.contacts.clear();
 842		for (Account account : xmppConnectionService.getAccounts()) {
 843			if (account.getStatus() != Account.State.DISABLED) {
 844				for (Contact contact : account.getRoster().getContacts()) {
 845					Presence.Status s = contact.getShownStatus();
 846					if (contact.showInRoster() && contact.match(this, needle)
 847							&& (!this.mHideOfflineContacts
 848							|| (needle != null && !needle.trim().isEmpty())
 849							|| s.compareTo(Presence.Status.OFFLINE) < 0)) {
 850						this.contacts.add(contact);
 851					}
 852				}
 853			}
 854		}
 855		Collections.sort(this.contacts);
 856		mContactsAdapter.notifyDataSetChanged();
 857	}
 858
 859	protected void filterConferences(String needle) {
 860		this.conferences.clear();
 861		for (Account account : xmppConnectionService.getAccounts()) {
 862			if (account.getStatus() != Account.State.DISABLED) {
 863				for (Bookmark bookmark : account.getBookmarks()) {
 864					if (bookmark.match(this, needle)) {
 865						this.conferences.add(bookmark);
 866					}
 867				}
 868			}
 869		}
 870		Collections.sort(this.conferences);
 871		mConferenceAdapter.notifyDataSetChanged();
 872	}
 873
 874	private void onTabChanged() {
 875		@DrawableRes final int fabDrawable;
 876		if (getSupportActionBar().getSelectedNavigationIndex() == 0) {
 877			fabDrawable = R.drawable.ic_person_add_white_24dp;
 878		} else {
 879			fabDrawable = R.drawable.ic_group_add_white_24dp;
 880		}
 881		binding.fab.setImageResource(fabDrawable);
 882		invalidateOptionsMenu();
 883	}
 884
 885	@Override
 886	public void OnUpdateBlocklist(final Status status) {
 887		refreshUi();
 888	}
 889
 890	@Override
 891	protected void refreshUiReal() {
 892		if (mSearchEditText != null) {
 893			filter(mSearchEditText.getText().toString());
 894		}
 895	}
 896
 897	@Override
 898	public void onCreateDialogPositiveClick(Spinner spinner,String subject) {
 899		if (!xmppConnectionServiceBound) {
 900			return;
 901		}
 902		final Account account = getSelectedAccount(spinner);
 903		if (account == null) {
 904			return;
 905		}
 906		Intent intent = new Intent(getApplicationContext(), ChooseContactActivity.class);
 907		intent.putExtra("multiple", true);
 908		intent.putExtra("show_enter_jid", true);
 909		intent.putExtra("subject", subject);
 910		intent.putExtra(EXTRA_ACCOUNT, account.getJid().asBareJid().toString());
 911		intent.putExtra(ChooseContactActivity.EXTRA_TITLE_RES_ID, R.string.choose_participants);
 912		startActivityForResult(intent, REQUEST_CREATE_CONFERENCE);
 913	}
 914
 915	@Override
 916	public void onJoinDialogPositiveClick(Dialog dialog, Spinner spinner, AutoCompleteTextView jid, boolean isBookmarkChecked) {
 917		if (!xmppConnectionServiceBound) {
 918			return;
 919		}
 920		final Account account = getSelectedAccount(spinner);
 921		if (account == null) {
 922			return;
 923		}
 924		final Jid conferenceJid;
 925		try {
 926			conferenceJid = Jid.of(jid.getText().toString());
 927		} catch (final IllegalArgumentException e) {
 928			jid.setError(getString(R.string.invalid_jid));
 929			return;
 930		}
 931
 932		if (isBookmarkChecked) {
 933			if (account.hasBookmarkFor(conferenceJid)) {
 934				jid.setError(getString(R.string.bookmark_already_exists));
 935			} else {
 936				final Bookmark bookmark = new Bookmark(account, conferenceJid.asBareJid());
 937				bookmark.setAutojoin(getPreferences().getBoolean("autojoin", getResources().getBoolean(R.bool.autojoin)));
 938				String nick = conferenceJid.getResource();
 939				if (nick != null && !nick.isEmpty()) {
 940					bookmark.setNick(nick);
 941				}
 942				account.getBookmarks().add(bookmark);
 943				xmppConnectionService.pushBookmarks(account);
 944				final Conversation conversation = xmppConnectionService
 945						.findOrCreateConversation(account, conferenceJid, true, true, true);
 946				bookmark.setConversation(conversation);
 947				dialog.dismiss();
 948				switchToConversation(conversation);
 949			}
 950		} else {
 951			final Conversation conversation = xmppConnectionService
 952					.findOrCreateConversation(account, conferenceJid, true, true, true);
 953			dialog.dismiss();
 954			switchToConversation(conversation);
 955		}
 956	}
 957
 958	public static class MyListFragment extends ListFragment {
 959		private AdapterView.OnItemClickListener mOnItemClickListener;
 960		private int mResContextMenu;
 961
 962		public void setContextMenu(final int res) {
 963			this.mResContextMenu = res;
 964		}
 965
 966		@Override
 967		public void onListItemClick(final ListView l, final View v, final int position, final long id) {
 968			if (mOnItemClickListener != null) {
 969				mOnItemClickListener.onItemClick(l, v, position, id);
 970			}
 971		}
 972
 973		public void setOnListItemClickListener(AdapterView.OnItemClickListener l) {
 974			this.mOnItemClickListener = l;
 975		}
 976
 977		@Override
 978		public void onViewCreated(@NonNull final View view, final Bundle savedInstanceState) {
 979			super.onViewCreated(view, savedInstanceState);
 980			registerForContextMenu(getListView());
 981			getListView().setFastScrollEnabled(true);
 982			getListView().setDivider(null);
 983			getListView().setDividerHeight(0);
 984		}
 985
 986		@Override
 987		public void onCreateContextMenu(final ContextMenu menu, final View v,
 988		                                final ContextMenuInfo menuInfo) {
 989			super.onCreateContextMenu(menu, v, menuInfo);
 990			final StartConversationActivity activity = (StartConversationActivity) getActivity();
 991			if (activity == null) {
 992				return;
 993			}
 994			activity.getMenuInflater().inflate(mResContextMenu, menu);
 995			final AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
 996			if (mResContextMenu == R.menu.conference_context) {
 997				activity.conference_context_id = acmi.position;
 998			} else if (mResContextMenu == R.menu.contact_context) {
 999				activity.contact_context_id = acmi.position;
1000				final Contact contact = (Contact) activity.contacts.get(acmi.position);
1001				final MenuItem blockUnblockItem = menu.findItem(R.id.context_contact_block_unblock);
1002				final MenuItem showContactDetailsItem = menu.findItem(R.id.context_contact_details);
1003				if (contact.isSelf()) {
1004					showContactDetailsItem.setVisible(false);
1005				}
1006				XmppConnection xmpp = contact.getAccount().getXmppConnection();
1007				if (xmpp != null && xmpp.getFeatures().blocking() && !contact.isSelf()) {
1008					if (contact.isBlocked()) {
1009						blockUnblockItem.setTitle(R.string.unblock_contact);
1010					} else {
1011						blockUnblockItem.setTitle(R.string.block_contact);
1012					}
1013				} else {
1014					blockUnblockItem.setVisible(false);
1015				}
1016			}
1017		}
1018
1019		@Override
1020		public boolean onContextItemSelected(final MenuItem item) {
1021			StartConversationActivity activity = (StartConversationActivity) getActivity();
1022			if (activity == null) {
1023				return true;
1024			}
1025			switch (item.getItemId()) {
1026				case R.id.context_start_conversation:
1027					activity.openConversationForContact();
1028					break;
1029				case R.id.context_contact_details:
1030					activity.openDetailsForContact();
1031					break;
1032				case R.id.context_contact_block_unblock:
1033					activity.toggleContactBlock();
1034					break;
1035				case R.id.context_delete_contact:
1036					activity.deleteContact();
1037					break;
1038				case R.id.context_join_conference:
1039					activity.openConversationForBookmark();
1040					break;
1041				case R.id.context_share_uri:
1042					activity.shareBookmarkUri();
1043					break;
1044				case R.id.context_delete_conference:
1045					activity.deleteConference();
1046			}
1047			return true;
1048		}
1049	}
1050
1051	public class ListPagerAdapter extends PagerAdapter {
1052		FragmentManager fragmentManager;
1053		MyListFragment[] fragments;
1054
1055		public ListPagerAdapter(FragmentManager fm) {
1056			fragmentManager = fm;
1057			fragments = new MyListFragment[2];
1058		}
1059
1060		public void requestFocus(int pos) {
1061			if (fragments.length > pos) {
1062				fragments[pos].getListView().requestFocus();
1063			}
1064		}
1065
1066		@Override
1067		public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {
1068			assert (0 <= position && position < fragments.length);
1069			FragmentTransaction trans = fragmentManager.beginTransaction();
1070			trans.remove(fragments[position]);
1071			trans.commit();
1072			fragments[position] = null;
1073		}
1074
1075		@Override
1076		public Fragment instantiateItem(@NonNull ViewGroup container, int position) {
1077			Fragment fragment = getItem(position);
1078			FragmentTransaction trans = fragmentManager.beginTransaction();
1079			trans.add(container.getId(), fragment, "fragment:" + position);
1080			trans.commit();
1081			return fragment;
1082		}
1083
1084		@Override
1085		public int getCount() {
1086			return fragments.length;
1087		}
1088
1089		@Override
1090		public boolean isViewFromObject(@NonNull View view, @NonNull Object fragment) {
1091			return ((Fragment) fragment).getView() == view;
1092		}
1093
1094		public Fragment getItem(int position) {
1095			assert (0 <= position && position < fragments.length);
1096			if (fragments[position] == null) {
1097				final MyListFragment listFragment = new MyListFragment();
1098				if (position == 1) {
1099					listFragment.setListAdapter(mConferenceAdapter);
1100					listFragment.setContextMenu(R.menu.conference_context);
1101					listFragment.setOnListItemClickListener((arg0, arg1, p, arg3) -> openConversationForBookmark(p));
1102				} else {
1103
1104					listFragment.setListAdapter(mContactsAdapter);
1105					listFragment.setContextMenu(R.menu.contact_context);
1106					listFragment.setOnListItemClickListener((arg0, arg1, p, arg3) -> openConversationForContact(p));
1107				}
1108				fragments[position] = listFragment;
1109			}
1110			return fragments[position];
1111		}
1112	}
1113
1114	private class Invite extends XmppUri {
1115
1116		public String account;
1117
1118		public Invite(final Uri uri) {
1119			super(uri);
1120		}
1121
1122		public Invite(final String uri) {
1123			super(uri);
1124		}
1125
1126		public Invite(Uri uri, boolean safeSource) {
1127			super(uri, safeSource);
1128		}
1129
1130		boolean invite() {
1131			if (!isJidValid()) {
1132				Toast.makeText(StartConversationActivity.this, R.string.invalid_jid, Toast.LENGTH_SHORT).show();
1133				return false;
1134			}
1135			if (getJid() != null) {
1136				return handleJid(this);
1137			}
1138			return false;
1139		}
1140	}
1141}