StartConversationActivity.java

   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.Pair;
  39import android.view.ContextMenu;
  40import android.view.ContextMenu.ContextMenuInfo;
  41import android.view.KeyEvent;
  42import android.view.Menu;
  43import android.view.MenuItem;
  44import android.view.View;
  45import android.view.ViewGroup;
  46import android.view.inputmethod.InputMethodManager;
  47import android.widget.AdapterView;
  48import android.widget.AdapterView.AdapterContextMenuInfo;
  49import android.widget.AdapterView.OnItemClickListener;
  50import android.widget.ArrayAdapter;
  51import android.widget.AutoCompleteTextView;
  52import android.widget.CheckBox;
  53import android.widget.Checkable;
  54import android.widget.EditText;
  55import android.widget.ListView;
  56import android.widget.Spinner;
  57import android.widget.TextView;
  58import android.widget.Toast;
  59
  60import java.util.ArrayList;
  61import java.util.Arrays;
  62import java.util.Collection;
  63import java.util.Collections;
  64import java.util.List;
  65import java.util.concurrent.atomic.AtomicBoolean;
  66
  67import eu.siacs.conversations.Config;
  68import eu.siacs.conversations.R;
  69import eu.siacs.conversations.databinding.ActivityStartConversationBinding;
  70import eu.siacs.conversations.entities.Account;
  71import eu.siacs.conversations.entities.Bookmark;
  72import eu.siacs.conversations.entities.Contact;
  73import eu.siacs.conversations.entities.Conversation;
  74import eu.siacs.conversations.entities.ListItem;
  75import eu.siacs.conversations.entities.Presence;
  76import eu.siacs.conversations.services.XmppConnectionService.OnRosterUpdate;
  77import eu.siacs.conversations.ui.adapter.KnownHostsAdapter;
  78import eu.siacs.conversations.ui.adapter.ListItemAdapter;
  79import eu.siacs.conversations.ui.service.EmojiService;
  80import eu.siacs.conversations.ui.util.DelayedHintHelper;
  81import eu.siacs.conversations.utils.XmppUri;
  82import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
  83import eu.siacs.conversations.xmpp.XmppConnection;
  84import rocks.xmpp.addr.Jid;
  85
  86public class StartConversationActivity extends XmppActivity implements OnRosterUpdate, OnUpdateBlocklist, CreateConferenceDialog.CreateConferenceDialogListener, JoinConferenceDialog.JoinConferenceDialogListener {
  87
  88	private final int REQUEST_SYNC_CONTACTS = 0x28cf;
  89	private final int REQUEST_CREATE_CONFERENCE = 0x39da;
  90	public int conference_context_id;
  91	public int contact_context_id;
  92	private ListPagerAdapter mListPagerAdapter;
  93	private List<ListItem> contacts = new ArrayList<>();
  94	private ListItemAdapter mContactsAdapter;
  95	private List<ListItem> conferences = new ArrayList<>();
  96	private ListItemAdapter mConferenceAdapter;
  97	private List<String> mActivatedAccounts = new ArrayList<>();
  98	private Collection<String> mKnownHosts;
  99	private Collection<String> mKnownConferenceHosts;
 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("dialog");
 445		if (prev != null) {
 446			ft.remove(prev);
 447		}
 448		ft.addToBackStack(null);
 449		EnterJidDialog dialog = EnterJidDialog.newInstance(
 450				mKnownHosts, mActivatedAccounts,
 451				getString(R.string.dialog_title_create_contact), getString(R.string.create),
 452				prefilledJid, null, invite == null || !invite.hasFingerprints()
 453		);
 454
 455		dialog.setOnEnterJidDialogPositiveListener((accountJid, contactJid) -> {
 456			if (!xmppConnectionServiceBound) {
 457				return false;
 458			}
 459
 460			final Account account = xmppConnectionService.findAccountByJid(accountJid);
 461			if (account == null) {
 462				return true;
 463			}
 464
 465			final Contact contact = account.getRoster().getContact(contactJid);
 466			if (invite != null && invite.getName() != null) {
 467				contact.setServerName(invite.getName());
 468			}
 469			if (contact.isSelf()) {
 470				switchToConversation(contact, null);
 471				return true;
 472			} else if (contact.showInRoster()) {
 473				throw new EnterJidDialog.JidError(getString(R.string.contact_already_exists));
 474			} else {
 475				xmppConnectionService.createContact(contact, true);
 476				if (invite != null && invite.hasFingerprints()) {
 477					xmppConnectionService.verifyFingerprints(contact, invite.getFingerprints());
 478				}
 479				switchToConversation(contact, invite == null ? null : invite.getBody());
 480				return true;
 481			}
 482		});
 483		dialog.show(ft, "dialog");
 484	}
 485
 486	@SuppressLint("InflateParams")
 487	protected void showJoinConferenceDialog(final String prefilledJid) {
 488		FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
 489		Fragment prev = getSupportFragmentManager().findFragmentByTag("dialog");
 490		if (prev != null) {
 491			ft.remove(prev);
 492		}
 493		ft.addToBackStack(null);
 494		JoinConferenceDialog joinConferenceFragment = JoinConferenceDialog.newInstance(prefilledJid, mActivatedAccounts, mKnownConferenceHosts);
 495		joinConferenceFragment.show(ft, "dialog");
 496	}
 497
 498	private void showCreateConferenceDialog() {
 499		FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
 500		Fragment prev = getSupportFragmentManager().findFragmentByTag("dialog");
 501		if (prev != null) {
 502			ft.remove(prev);
 503		}
 504		ft.addToBackStack(null);
 505		CreateConferenceDialog createConferenceFragment = CreateConferenceDialog.newInstance(mActivatedAccounts);
 506		createConferenceFragment.show(ft, "dialog");
 507	}
 508
 509	private Account getSelectedAccount(Spinner spinner) {
 510		if (!spinner.isEnabled()) {
 511			return null;
 512		}
 513		Jid jid;
 514		try {
 515			if (Config.DOMAIN_LOCK != null) {
 516				jid = Jid.of((String) spinner.getSelectedItem(), Config.DOMAIN_LOCK, null);
 517			} else {
 518				jid = Jid.of((String) spinner.getSelectedItem());
 519			}
 520		} catch (final IllegalArgumentException e) {
 521			return null;
 522		}
 523		return xmppConnectionService.findAccountByJid(jid);
 524	}
 525
 526	protected void switchToConversation(Contact contact, String body) {
 527		Conversation conversation = xmppConnectionService
 528				.findOrCreateConversation(contact.getAccount(),
 529						contact.getJid(), false, true);
 530		switchToConversation(conversation, body, false);
 531	}
 532
 533	@Override
 534	public boolean onCreateOptionsMenu(Menu menu) {
 535		getMenuInflater().inflate(R.menu.start_conversation, menu);
 536		MenuItem menuHideOffline = menu.findItem(R.id.action_hide_offline);
 537		MenuItem joinGroupChat = menu.findItem(R.id.action_join_conference);
 538		MenuItem qrCodeScanMenuItem = menu.findItem(R.id.action_scan_qr_code);
 539		ActionBar bar = getSupportActionBar();
 540		joinGroupChat.setVisible(bar != null && bar.getSelectedNavigationIndex() == 1);
 541		qrCodeScanMenuItem.setVisible(isCameraFeatureAvailable());
 542		menuHideOffline.setChecked(this.mHideOfflineContacts);
 543		mMenuSearchView = menu.findItem(R.id.action_search);
 544		mMenuSearchView.setOnActionExpandListener(mOnActionExpandListener);
 545		View mSearchView = mMenuSearchView.getActionView();
 546		mSearchEditText = mSearchView.findViewById(R.id.search_field);
 547		mSearchEditText.addTextChangedListener(mSearchTextWatcher);
 548		mSearchEditText.setOnEditorActionListener(mSearchDone);
 549		if (mInitialJid != null) {
 550			mMenuSearchView.expandActionView();
 551			mSearchEditText.append(mInitialJid);
 552			filter(mInitialJid);
 553		}
 554		return super.onCreateOptionsMenu(menu);
 555	}
 556
 557	@Override
 558	public boolean onOptionsItemSelected(MenuItem item) {
 559		switch (item.getItemId()) {
 560			case R.id.action_join_conference:
 561				showJoinConferenceDialog(null);
 562				return true;
 563			case R.id.action_scan_qr_code:
 564				UriHandlerActivity.scan(this);
 565				return true;
 566			case R.id.action_hide_offline:
 567				mHideOfflineContacts = !item.isChecked();
 568				getPreferences().edit().putBoolean("hide_offline", mHideOfflineContacts).commit();
 569				if (mSearchEditText != null) {
 570					filter(mSearchEditText.getText().toString());
 571				}
 572				invalidateOptionsMenu();
 573		}
 574		return super.onOptionsItemSelected(item);
 575	}
 576
 577	@Override
 578	public boolean onKeyUp(int keyCode, KeyEvent event) {
 579		if (keyCode == KeyEvent.KEYCODE_SEARCH && !event.isLongPress()) {
 580			openSearch();
 581			return true;
 582		}
 583		int c = event.getUnicodeChar();
 584		if (c > 32) {
 585			if (mSearchEditText != null && !mSearchEditText.isFocused()) {
 586				openSearch();
 587				mSearchEditText.append(Character.toString((char) c));
 588				return true;
 589			}
 590		}
 591		return super.onKeyUp(keyCode, event);
 592	}
 593
 594	private void openSearch() {
 595		if (mMenuSearchView != null) {
 596			mMenuSearchView.expandActionView();
 597		}
 598	}
 599
 600	@Override
 601	public void onActivityResult(int requestCode, int resultCode, Intent intent) {
 602		if (resultCode == RESULT_OK) {
 603			if (xmppConnectionServiceBound) {
 604				this.mPostponedActivityResult = null;
 605				if (requestCode == REQUEST_CREATE_CONFERENCE) {
 606					Account account = extractAccount(intent);
 607					final String subject = intent.getStringExtra("subject");
 608					List<Jid> jids = new ArrayList<>();
 609					if (intent.getBooleanExtra("multiple", false)) {
 610						String[] toAdd = intent.getStringArrayExtra("contacts");
 611						for (String item : toAdd) {
 612							try {
 613								jids.add(Jid.of(item));
 614							} catch (IllegalArgumentException e) {
 615								//ignored
 616							}
 617						}
 618					} else {
 619						try {
 620							jids.add(Jid.of(intent.getStringExtra("contact")));
 621						} catch (Exception e) {
 622							//ignored
 623						}
 624					}
 625					if (account != null && jids.size() > 0) {
 626						if (xmppConnectionService.createAdhocConference(account, subject, jids, mAdhocConferenceCallback)) {
 627							mToast = Toast.makeText(this, R.string.creating_conference, Toast.LENGTH_LONG);
 628							mToast.show();
 629						}
 630					}
 631				}
 632			} else {
 633				this.mPostponedActivityResult = new Pair<>(requestCode, intent);
 634			}
 635		}
 636		super.onActivityResult(requestCode, requestCode, intent);
 637	}
 638
 639	private void askForContactsPermissions() {
 640		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 641			if (checkSelfPermission(Manifest.permission.READ_CONTACTS) != PackageManager.PERMISSION_GRANTED) {
 642				if (mRequestedContactsPermission.compareAndSet(false, true)) {
 643					if (shouldShowRequestPermissionRationale(Manifest.permission.READ_CONTACTS)) {
 644						AlertDialog.Builder builder = new AlertDialog.Builder(this);
 645						builder.setTitle(R.string.sync_with_contacts);
 646						builder.setMessage(R.string.sync_with_contacts_long);
 647						builder.setPositiveButton(R.string.next, new OnClickListener() {
 648							@Override
 649							public void onClick(DialogInterface dialog, int which) {
 650								if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 651									requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, REQUEST_SYNC_CONTACTS);
 652								}
 653							}
 654						});
 655						if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
 656							builder.setOnDismissListener(new DialogInterface.OnDismissListener() {
 657								@Override
 658								public void onDismiss(DialogInterface dialog) {
 659									if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 660										requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, REQUEST_SYNC_CONTACTS);
 661									}
 662								}
 663							});
 664						}
 665						builder.create().show();
 666					} else {
 667						requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, 0);
 668					}
 669				}
 670			}
 671		}
 672	}
 673
 674	@Override
 675	public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[], @NonNull int[] grantResults) {
 676		if (grantResults.length > 0)
 677			if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
 678				ScanActivity.onRequestPermissionResult(this, requestCode, grantResults);
 679				if (requestCode == REQUEST_SYNC_CONTACTS && xmppConnectionServiceBound) {
 680					xmppConnectionService.loadPhoneContacts();
 681				}
 682			}
 683	}
 684
 685	@Override
 686	protected void onBackendConnected() {
 687		if (mPostponedActivityResult != null) {
 688			onActivityResult(mPostponedActivityResult.first, RESULT_OK, mPostponedActivityResult.second);
 689			this.mPostponedActivityResult = null;
 690		}
 691		this.mActivatedAccounts.clear();
 692		for (Account account : xmppConnectionService.getAccounts()) {
 693			if (account.getStatus() != Account.State.DISABLED) {
 694				if (Config.DOMAIN_LOCK != null) {
 695					this.mActivatedAccounts.add(account.getJid().getLocal());
 696				} else {
 697					this.mActivatedAccounts.add(account.getJid().asBareJid().toString());
 698				}
 699			}
 700		}
 701		final Intent intent = getIntent();
 702		final ActionBar ab = getSupportActionBar();
 703		boolean init = intent != null && intent.getBooleanExtra("init", false);
 704		boolean noConversations = xmppConnectionService.getConversations().size() == 0;
 705		if ((init || noConversations) && ab != null) {
 706			ab.setDisplayShowHomeEnabled(false);
 707			ab.setDisplayHomeAsUpEnabled(false);
 708			ab.setHomeButtonEnabled(false);
 709		}
 710		this.mKnownHosts = xmppConnectionService.getKnownHosts();
 711		this.mKnownConferenceHosts = xmppConnectionService.getKnownConferenceHosts();
 712		if (this.mPendingInvite != null) {
 713			mPendingInvite.invite();
 714			this.mPendingInvite = null;
 715			filter(null);
 716		} else if (!handleIntent(getIntent())) {
 717			if (mSearchEditText != null) {
 718				filter(mSearchEditText.getText().toString());
 719			} else {
 720				filter(null);
 721			}
 722		} else {
 723			filter(null);
 724		}
 725		setIntent(null);
 726	}
 727
 728	protected boolean handleIntent(Intent intent) {
 729		if (intent == null) {
 730			return false;
 731		}
 732		final String inviteUri = intent.getStringExtra(WelcomeActivity.EXTRA_INVITE_URI);
 733		if (inviteUri != null) {
 734			Invite invite = new Invite(inviteUri);
 735			if (invite.isJidValid()) {
 736				return invite.invite();
 737			}
 738		}
 739		if (intent.getAction() == null) {
 740			return false;
 741		}
 742		switch (intent.getAction()) {
 743			case Intent.ACTION_SENDTO:
 744			case Intent.ACTION_VIEW:
 745				Uri uri = intent.getData();
 746				if (uri != null) {
 747					Invite invite = new Invite(intent.getData(), intent.getBooleanExtra("scanned", false));
 748					invite.account = intent.getStringExtra("account");
 749					return invite.invite();
 750				} else {
 751					return false;
 752				}
 753		}
 754		return false;
 755	}
 756
 757	private boolean handleJid(Invite invite) {
 758		List<Contact> contacts = xmppConnectionService.findContacts(invite.getJid(), invite.account);
 759		if (invite.isAction(XmppUri.ACTION_JOIN)) {
 760			Conversation muc = xmppConnectionService.findFirstMuc(invite.getJid());
 761			if (muc != null) {
 762				switchToConversation(muc, invite.getBody(), false);
 763				return true;
 764			} else {
 765				showJoinConferenceDialog(invite.getJid().asBareJid().toString());
 766				return false;
 767			}
 768		} else if (contacts.size() == 0) {
 769			showCreateContactDialog(invite.getJid().toString(), invite);
 770			return false;
 771		} else if (contacts.size() == 1) {
 772			Contact contact = contacts.get(0);
 773			if (!invite.isSafeSource() && invite.hasFingerprints()) {
 774				displayVerificationWarningDialog(contact, invite);
 775			} else {
 776				if (invite.hasFingerprints()) {
 777					if (xmppConnectionService.verifyFingerprints(contact, invite.getFingerprints())) {
 778						Toast.makeText(this, R.string.verified_fingerprints, Toast.LENGTH_SHORT).show();
 779					}
 780				}
 781				if (invite.account != null) {
 782					xmppConnectionService.getShortcutService().report(contact);
 783				}
 784				switchToConversation(contact, invite.getBody());
 785			}
 786			return true;
 787		} else {
 788			if (mMenuSearchView != null) {
 789				mMenuSearchView.expandActionView();
 790				mSearchEditText.setText("");
 791				mSearchEditText.append(invite.getJid().toString());
 792				filter(invite.getJid().toString());
 793			} else {
 794				mInitialJid = invite.getJid().toString();
 795			}
 796			return true;
 797		}
 798	}
 799
 800	private void displayVerificationWarningDialog(final Contact contact, final Invite invite) {
 801		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 802		builder.setTitle(R.string.verify_omemo_keys);
 803		View view = getLayoutInflater().inflate(R.layout.dialog_verify_fingerprints, null);
 804		final CheckBox isTrustedSource = (CheckBox) view.findViewById(R.id.trusted_source);
 805		TextView warning = (TextView) view.findViewById(R.id.warning);
 806		String jid = contact.getJid().asBareJid().toString();
 807		SpannableString spannable = new SpannableString(getString(R.string.verifying_omemo_keys_trusted_source, jid, contact.getDisplayName()));
 808		int start = spannable.toString().indexOf(jid);
 809		if (start >= 0) {
 810			spannable.setSpan(new TypefaceSpan("monospace"), start, start + jid.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
 811		}
 812		warning.setText(spannable);
 813		builder.setView(view);
 814		builder.setPositiveButton(R.string.confirm, (dialog, which) -> {
 815			if (isTrustedSource.isChecked() && invite.hasFingerprints()) {
 816				xmppConnectionService.verifyFingerprints(contact, invite.getFingerprints());
 817			}
 818			switchToConversation(contact, invite.getBody());
 819		});
 820		builder.setNegativeButton(R.string.cancel, (dialog, which) -> StartConversationActivity.this.finish());
 821		AlertDialog dialog = builder.create();
 822		dialog.setCanceledOnTouchOutside(false);
 823		dialog.setOnCancelListener(dialog1 -> StartConversationActivity.this.finish());
 824		dialog.show();
 825	}
 826
 827	protected void filter(String needle) {
 828		if (xmppConnectionServiceBound) {
 829			this.filterContacts(needle);
 830			this.filterConferences(needle);
 831		}
 832	}
 833
 834	protected void filterContacts(String needle) {
 835		this.contacts.clear();
 836		for (Account account : xmppConnectionService.getAccounts()) {
 837			if (account.getStatus() != Account.State.DISABLED) {
 838				for (Contact contact : account.getRoster().getContacts()) {
 839					Presence.Status s = contact.getShownStatus();
 840					if (contact.showInRoster() && contact.match(this, needle)
 841							&& (!this.mHideOfflineContacts
 842							|| (needle != null && !needle.trim().isEmpty())
 843							|| s.compareTo(Presence.Status.OFFLINE) < 0)) {
 844						this.contacts.add(contact);
 845					}
 846				}
 847			}
 848		}
 849		Collections.sort(this.contacts);
 850		mContactsAdapter.notifyDataSetChanged();
 851	}
 852
 853	protected void filterConferences(String needle) {
 854		this.conferences.clear();
 855		for (Account account : xmppConnectionService.getAccounts()) {
 856			if (account.getStatus() != Account.State.DISABLED) {
 857				for (Bookmark bookmark : account.getBookmarks()) {
 858					if (bookmark.match(this, needle)) {
 859						this.conferences.add(bookmark);
 860					}
 861				}
 862			}
 863		}
 864		Collections.sort(this.conferences);
 865		mConferenceAdapter.notifyDataSetChanged();
 866	}
 867
 868	private void onTabChanged() {
 869		@DrawableRes final int fabDrawable;
 870		if (getSupportActionBar().getSelectedNavigationIndex() == 0) {
 871			fabDrawable = R.drawable.ic_person_add_white_24dp;
 872		} else {
 873			fabDrawable = R.drawable.ic_group_add_white_24dp;
 874		}
 875		binding.fab.setImageResource(fabDrawable);
 876		invalidateOptionsMenu();
 877	}
 878
 879	@Override
 880	public void OnUpdateBlocklist(final Status status) {
 881		refreshUi();
 882	}
 883
 884	@Override
 885	protected void refreshUiReal() {
 886		if (mSearchEditText != null) {
 887			filter(mSearchEditText.getText().toString());
 888		}
 889	}
 890
 891	@Override
 892	public void onCreateDialogPositiveClick(Spinner spinner,String subject) {
 893		if (!xmppConnectionServiceBound) {
 894			return;
 895		}
 896		final Account account = getSelectedAccount(spinner);
 897		if (account == null) {
 898			return;
 899		}
 900		Intent intent = new Intent(getApplicationContext(), ChooseContactActivity.class);
 901		intent.putExtra("multiple", true);
 902		intent.putExtra("show_enter_jid", true);
 903		intent.putExtra("subject", subject);
 904		intent.putExtra(EXTRA_ACCOUNT, account.getJid().asBareJid().toString());
 905		intent.putExtra(ChooseContactActivity.EXTRA_TITLE_RES_ID, R.string.choose_participants);
 906		startActivityForResult(intent, REQUEST_CREATE_CONFERENCE);
 907	}
 908
 909	@Override
 910	public void onJoinDialogPositiveClick(Dialog dialog, Spinner spinner, AutoCompleteTextView jid, boolean isBookmarkChecked) {
 911		if (!xmppConnectionServiceBound) {
 912			return;
 913		}
 914		final Account account = getSelectedAccount(spinner);
 915		if (account == null) {
 916			return;
 917		}
 918		final Jid conferenceJid;
 919		try {
 920			conferenceJid = Jid.of(jid.getText().toString());
 921		} catch (final IllegalArgumentException e) {
 922			jid.setError(getString(R.string.invalid_jid));
 923			return;
 924		}
 925
 926		if (isBookmarkChecked) {
 927			if (account.hasBookmarkFor(conferenceJid)) {
 928				jid.setError(getString(R.string.bookmark_already_exists));
 929			} else {
 930				final Bookmark bookmark = new Bookmark(account, conferenceJid.asBareJid());
 931				bookmark.setAutojoin(getPreferences().getBoolean("autojoin", getResources().getBoolean(R.bool.autojoin)));
 932				String nick = conferenceJid.getResource();
 933				if (nick != null && !nick.isEmpty()) {
 934					bookmark.setNick(nick);
 935				}
 936				account.getBookmarks().add(bookmark);
 937				xmppConnectionService.pushBookmarks(account);
 938				final Conversation conversation = xmppConnectionService
 939						.findOrCreateConversation(account, conferenceJid, true, true, true);
 940				bookmark.setConversation(conversation);
 941				dialog.dismiss();
 942				switchToConversation(conversation);
 943			}
 944		} else {
 945			final Conversation conversation = xmppConnectionService
 946					.findOrCreateConversation(account, conferenceJid, true, true, true);
 947			dialog.dismiss();
 948			switchToConversation(conversation);
 949		}
 950	}
 951
 952	public static class MyListFragment extends ListFragment {
 953		private AdapterView.OnItemClickListener mOnItemClickListener;
 954		private int mResContextMenu;
 955
 956		public void setContextMenu(final int res) {
 957			this.mResContextMenu = res;
 958		}
 959
 960		@Override
 961		public void onListItemClick(final ListView l, final View v, final int position, final long id) {
 962			if (mOnItemClickListener != null) {
 963				mOnItemClickListener.onItemClick(l, v, position, id);
 964			}
 965		}
 966
 967		public void setOnListItemClickListener(AdapterView.OnItemClickListener l) {
 968			this.mOnItemClickListener = l;
 969		}
 970
 971		@Override
 972		public void onViewCreated(@NonNull final View view, final Bundle savedInstanceState) {
 973			super.onViewCreated(view, savedInstanceState);
 974			registerForContextMenu(getListView());
 975			getListView().setFastScrollEnabled(true);
 976			getListView().setDivider(null);
 977			getListView().setDividerHeight(0);
 978		}
 979
 980		@Override
 981		public void onCreateContextMenu(final ContextMenu menu, final View v,
 982		                                final ContextMenuInfo menuInfo) {
 983			super.onCreateContextMenu(menu, v, menuInfo);
 984			final StartConversationActivity activity = (StartConversationActivity) getActivity();
 985			if (activity == null) {
 986				return;
 987			}
 988			activity.getMenuInflater().inflate(mResContextMenu, menu);
 989			final AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
 990			if (mResContextMenu == R.menu.conference_context) {
 991				activity.conference_context_id = acmi.position;
 992			} else if (mResContextMenu == R.menu.contact_context) {
 993				activity.contact_context_id = acmi.position;
 994				final Contact contact = (Contact) activity.contacts.get(acmi.position);
 995				final MenuItem blockUnblockItem = menu.findItem(R.id.context_contact_block_unblock);
 996				final MenuItem showContactDetailsItem = menu.findItem(R.id.context_contact_details);
 997				if (contact.isSelf()) {
 998					showContactDetailsItem.setVisible(false);
 999				}
1000				XmppConnection xmpp = contact.getAccount().getXmppConnection();
1001				if (xmpp != null && xmpp.getFeatures().blocking() && !contact.isSelf()) {
1002					if (contact.isBlocked()) {
1003						blockUnblockItem.setTitle(R.string.unblock_contact);
1004					} else {
1005						blockUnblockItem.setTitle(R.string.block_contact);
1006					}
1007				} else {
1008					blockUnblockItem.setVisible(false);
1009				}
1010			}
1011		}
1012
1013		@Override
1014		public boolean onContextItemSelected(final MenuItem item) {
1015			StartConversationActivity activity = (StartConversationActivity) getActivity();
1016			if (activity == null) {
1017				return true;
1018			}
1019			switch (item.getItemId()) {
1020				case R.id.context_start_conversation:
1021					activity.openConversationForContact();
1022					break;
1023				case R.id.context_contact_details:
1024					activity.openDetailsForContact();
1025					break;
1026				case R.id.context_contact_block_unblock:
1027					activity.toggleContactBlock();
1028					break;
1029				case R.id.context_delete_contact:
1030					activity.deleteContact();
1031					break;
1032				case R.id.context_join_conference:
1033					activity.openConversationForBookmark();
1034					break;
1035				case R.id.context_share_uri:
1036					activity.shareBookmarkUri();
1037					break;
1038				case R.id.context_delete_conference:
1039					activity.deleteConference();
1040			}
1041			return true;
1042		}
1043	}
1044
1045	public class ListPagerAdapter extends PagerAdapter {
1046		FragmentManager fragmentManager;
1047		MyListFragment[] fragments;
1048
1049		public ListPagerAdapter(FragmentManager fm) {
1050			fragmentManager = fm;
1051			fragments = new MyListFragment[2];
1052		}
1053
1054		public void requestFocus(int pos) {
1055			if (fragments.length > pos) {
1056				fragments[pos].getListView().requestFocus();
1057			}
1058		}
1059
1060		@Override
1061		public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {
1062			assert (0 <= position && position < fragments.length);
1063			FragmentTransaction trans = fragmentManager.beginTransaction();
1064			trans.remove(fragments[position]);
1065			trans.commit();
1066			fragments[position] = null;
1067		}
1068
1069		@Override
1070		public Fragment instantiateItem(@NonNull ViewGroup container, int position) {
1071			Fragment fragment = getItem(position);
1072			FragmentTransaction trans = fragmentManager.beginTransaction();
1073			trans.add(container.getId(), fragment, "fragment:" + position);
1074			trans.commit();
1075			return fragment;
1076		}
1077
1078		@Override
1079		public int getCount() {
1080			return fragments.length;
1081		}
1082
1083		@Override
1084		public boolean isViewFromObject(@NonNull View view, @NonNull Object fragment) {
1085			return ((Fragment) fragment).getView() == view;
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}