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		EnterJidDialog dialog = EnterJidDialog.newInstance(
 444				mKnownHosts, mActivatedAccounts,
 445				getString(R.string.dialog_title_create_contact), getString(R.string.create),
 446				prefilledJid, null, invite == null || !invite.hasFingerprints()
 447		);
 448
 449		dialog.setOnEnterJidDialogPositiveListener((accountJid, contactJid) -> {
 450			if (!xmppConnectionServiceBound) {
 451				return false;
 452			}
 453
 454			final Account account = xmppConnectionService.findAccountByJid(accountJid);
 455			if (account == null) {
 456				return true;
 457			}
 458
 459			final Contact contact = account.getRoster().getContact(contactJid);
 460			if (invite != null && invite.getName() != null) {
 461				contact.setServerName(invite.getName());
 462			}
 463			if (contact.isSelf()) {
 464				switchToConversation(contact, null);
 465				return true;
 466			} else if (contact.showInRoster()) {
 467				throw new EnterJidDialog.JidError(getString(R.string.contact_already_exists));
 468			} else {
 469				xmppConnectionService.createContact(contact, true);
 470				if (invite != null && invite.hasFingerprints()) {
 471					xmppConnectionService.verifyFingerprints(contact, invite.getFingerprints());
 472				}
 473				switchToConversation(contact, invite == null ? null : invite.getBody());
 474				return true;
 475			}
 476		});
 477		dialog.show(getSupportFragmentManager(), "create_contact_dialog");
 478	}
 479
 480	@SuppressLint("InflateParams")
 481	protected void showJoinConferenceDialog(final String prefilledJid) {
 482		JoinConferenceDialog dialog = JoinConferenceDialog.newInstance(prefilledJid, mActivatedAccounts, mKnownConferenceHosts);
 483		dialog.show(getSupportFragmentManager(),"join_conference_dialog");
 484	}
 485
 486	private void showCreateConferenceDialog() {
 487		CreateConferenceDialog dialog = CreateConferenceDialog.newInstance(mActivatedAccounts);
 488		dialog.show(getSupportFragmentManager(),"create_conference_dialog");
 489	}
 490
 491	private Account getSelectedAccount(Spinner spinner) {
 492		if (!spinner.isEnabled()) {
 493			return null;
 494		}
 495		Jid jid;
 496		try {
 497			if (Config.DOMAIN_LOCK != null) {
 498				jid = Jid.of((String) spinner.getSelectedItem(), Config.DOMAIN_LOCK, null);
 499			} else {
 500				jid = Jid.of((String) spinner.getSelectedItem());
 501			}
 502		} catch (final IllegalArgumentException e) {
 503			return null;
 504		}
 505		return xmppConnectionService.findAccountByJid(jid);
 506	}
 507
 508	protected void switchToConversation(Contact contact, String body) {
 509		Conversation conversation = xmppConnectionService
 510				.findOrCreateConversation(contact.getAccount(),
 511						contact.getJid(), false, true);
 512		switchToConversation(conversation, body, false);
 513	}
 514
 515	@Override
 516	public boolean onCreateOptionsMenu(Menu menu) {
 517		getMenuInflater().inflate(R.menu.start_conversation, menu);
 518		MenuItem menuHideOffline = menu.findItem(R.id.action_hide_offline);
 519		MenuItem joinGroupChat = menu.findItem(R.id.action_join_conference);
 520		MenuItem qrCodeScanMenuItem = menu.findItem(R.id.action_scan_qr_code);
 521		ActionBar bar = getSupportActionBar();
 522		joinGroupChat.setVisible(bar != null && bar.getSelectedNavigationIndex() == 1);
 523		qrCodeScanMenuItem.setVisible(isCameraFeatureAvailable());
 524		menuHideOffline.setChecked(this.mHideOfflineContacts);
 525		mMenuSearchView = menu.findItem(R.id.action_search);
 526		mMenuSearchView.setOnActionExpandListener(mOnActionExpandListener);
 527		View mSearchView = mMenuSearchView.getActionView();
 528		mSearchEditText = mSearchView.findViewById(R.id.search_field);
 529		mSearchEditText.addTextChangedListener(mSearchTextWatcher);
 530		mSearchEditText.setOnEditorActionListener(mSearchDone);
 531		if (mInitialJid != null) {
 532			mMenuSearchView.expandActionView();
 533			mSearchEditText.append(mInitialJid);
 534			filter(mInitialJid);
 535		}
 536		return super.onCreateOptionsMenu(menu);
 537	}
 538
 539	@Override
 540	public boolean onOptionsItemSelected(MenuItem item) {
 541		switch (item.getItemId()) {
 542			case R.id.action_join_conference:
 543				showJoinConferenceDialog(null);
 544				return true;
 545			case R.id.action_scan_qr_code:
 546				UriHandlerActivity.scan(this);
 547				return true;
 548			case R.id.action_hide_offline:
 549				mHideOfflineContacts = !item.isChecked();
 550				getPreferences().edit().putBoolean("hide_offline", mHideOfflineContacts).commit();
 551				if (mSearchEditText != null) {
 552					filter(mSearchEditText.getText().toString());
 553				}
 554				invalidateOptionsMenu();
 555		}
 556		return super.onOptionsItemSelected(item);
 557	}
 558
 559	@Override
 560	public boolean onKeyUp(int keyCode, KeyEvent event) {
 561		if (keyCode == KeyEvent.KEYCODE_SEARCH && !event.isLongPress()) {
 562			openSearch();
 563			return true;
 564		}
 565		int c = event.getUnicodeChar();
 566		if (c > 32) {
 567			if (mSearchEditText != null && !mSearchEditText.isFocused()) {
 568				openSearch();
 569				mSearchEditText.append(Character.toString((char) c));
 570				return true;
 571			}
 572		}
 573		return super.onKeyUp(keyCode, event);
 574	}
 575
 576	private void openSearch() {
 577		if (mMenuSearchView != null) {
 578			mMenuSearchView.expandActionView();
 579		}
 580	}
 581
 582	@Override
 583	public void onActivityResult(int requestCode, int resultCode, Intent intent) {
 584		if (resultCode == RESULT_OK) {
 585			if (xmppConnectionServiceBound) {
 586				this.mPostponedActivityResult = null;
 587				if (requestCode == REQUEST_CREATE_CONFERENCE) {
 588					Account account = extractAccount(intent);
 589					final String subject = intent.getStringExtra("subject");
 590					List<Jid> jids = new ArrayList<>();
 591					if (intent.getBooleanExtra("multiple", false)) {
 592						String[] toAdd = intent.getStringArrayExtra("contacts");
 593						for (String item : toAdd) {
 594							try {
 595								jids.add(Jid.of(item));
 596							} catch (IllegalArgumentException e) {
 597								//ignored
 598							}
 599						}
 600					} else {
 601						try {
 602							jids.add(Jid.of(intent.getStringExtra("contact")));
 603						} catch (Exception e) {
 604							//ignored
 605						}
 606					}
 607					if (account != null && jids.size() > 0) {
 608						if (xmppConnectionService.createAdhocConference(account, subject, jids, mAdhocConferenceCallback)) {
 609							mToast = Toast.makeText(this, R.string.creating_conference, Toast.LENGTH_LONG);
 610							mToast.show();
 611						}
 612					}
 613				}
 614			} else {
 615				this.mPostponedActivityResult = new Pair<>(requestCode, intent);
 616			}
 617		}
 618		super.onActivityResult(requestCode, requestCode, intent);
 619	}
 620
 621	private void askForContactsPermissions() {
 622		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 623			if (checkSelfPermission(Manifest.permission.READ_CONTACTS) != PackageManager.PERMISSION_GRANTED) {
 624				if (mRequestedContactsPermission.compareAndSet(false, true)) {
 625					if (shouldShowRequestPermissionRationale(Manifest.permission.READ_CONTACTS)) {
 626						AlertDialog.Builder builder = new AlertDialog.Builder(this);
 627						builder.setTitle(R.string.sync_with_contacts);
 628						builder.setMessage(R.string.sync_with_contacts_long);
 629						builder.setPositiveButton(R.string.next, new OnClickListener() {
 630							@Override
 631							public void onClick(DialogInterface dialog, int which) {
 632								if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 633									requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, REQUEST_SYNC_CONTACTS);
 634								}
 635							}
 636						});
 637						if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
 638							builder.setOnDismissListener(new DialogInterface.OnDismissListener() {
 639								@Override
 640								public void onDismiss(DialogInterface dialog) {
 641									if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 642										requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, REQUEST_SYNC_CONTACTS);
 643									}
 644								}
 645							});
 646						}
 647						builder.create().show();
 648					} else {
 649						requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, 0);
 650					}
 651				}
 652			}
 653		}
 654	}
 655
 656	@Override
 657	public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[], @NonNull int[] grantResults) {
 658		if (grantResults.length > 0)
 659			if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
 660				ScanActivity.onRequestPermissionResult(this, requestCode, grantResults);
 661				if (requestCode == REQUEST_SYNC_CONTACTS && xmppConnectionServiceBound) {
 662					xmppConnectionService.loadPhoneContacts();
 663				}
 664			}
 665	}
 666
 667	@Override
 668	protected void onBackendConnected() {
 669		if (mPostponedActivityResult != null) {
 670			onActivityResult(mPostponedActivityResult.first, RESULT_OK, mPostponedActivityResult.second);
 671			this.mPostponedActivityResult = null;
 672		}
 673		this.mActivatedAccounts.clear();
 674		for (Account account : xmppConnectionService.getAccounts()) {
 675			if (account.getStatus() != Account.State.DISABLED) {
 676				if (Config.DOMAIN_LOCK != null) {
 677					this.mActivatedAccounts.add(account.getJid().getLocal());
 678				} else {
 679					this.mActivatedAccounts.add(account.getJid().asBareJid().toString());
 680				}
 681			}
 682		}
 683		final Intent intent = getIntent();
 684		final ActionBar ab = getSupportActionBar();
 685		boolean init = intent != null && intent.getBooleanExtra("init", false);
 686		boolean noConversations = xmppConnectionService.getConversations().size() == 0;
 687		if ((init || noConversations) && ab != null) {
 688			ab.setDisplayShowHomeEnabled(false);
 689			ab.setDisplayHomeAsUpEnabled(false);
 690			ab.setHomeButtonEnabled(false);
 691		}
 692		this.mKnownHosts = xmppConnectionService.getKnownHosts();
 693		this.mKnownConferenceHosts = xmppConnectionService.getKnownConferenceHosts();
 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	}
 709
 710	protected boolean handleIntent(Intent intent) {
 711		if (intent == null) {
 712			return false;
 713		}
 714		final String inviteUri = intent.getStringExtra(WelcomeActivity.EXTRA_INVITE_URI);
 715		if (inviteUri != null) {
 716			Invite invite = new Invite(inviteUri);
 717			if (invite.isJidValid()) {
 718				return invite.invite();
 719			}
 720		}
 721		if (intent.getAction() == null) {
 722			return false;
 723		}
 724		switch (intent.getAction()) {
 725			case Intent.ACTION_SENDTO:
 726			case Intent.ACTION_VIEW:
 727				Uri uri = intent.getData();
 728				if (uri != null) {
 729					Invite invite = new Invite(intent.getData(), intent.getBooleanExtra("scanned", false));
 730					invite.account = intent.getStringExtra("account");
 731					return invite.invite();
 732				} else {
 733					return false;
 734				}
 735		}
 736		return false;
 737	}
 738
 739	private boolean handleJid(Invite invite) {
 740		List<Contact> contacts = xmppConnectionService.findContacts(invite.getJid(), invite.account);
 741		if (invite.isAction(XmppUri.ACTION_JOIN)) {
 742			Conversation muc = xmppConnectionService.findFirstMuc(invite.getJid());
 743			if (muc != null) {
 744				switchToConversation(muc, invite.getBody(), false);
 745				return true;
 746			} else {
 747				showJoinConferenceDialog(invite.getJid().asBareJid().toString());
 748				return false;
 749			}
 750		} else if (contacts.size() == 0) {
 751			showCreateContactDialog(invite.getJid().toString(), invite);
 752			return false;
 753		} else if (contacts.size() == 1) {
 754			Contact contact = contacts.get(0);
 755			if (!invite.isSafeSource() && invite.hasFingerprints()) {
 756				displayVerificationWarningDialog(contact, invite);
 757			} else {
 758				if (invite.hasFingerprints()) {
 759					if (xmppConnectionService.verifyFingerprints(contact, invite.getFingerprints())) {
 760						Toast.makeText(this, R.string.verified_fingerprints, Toast.LENGTH_SHORT).show();
 761					}
 762				}
 763				if (invite.account != null) {
 764					xmppConnectionService.getShortcutService().report(contact);
 765				}
 766				switchToConversation(contact, invite.getBody());
 767			}
 768			return true;
 769		} else {
 770			if (mMenuSearchView != null) {
 771				mMenuSearchView.expandActionView();
 772				mSearchEditText.setText("");
 773				mSearchEditText.append(invite.getJid().toString());
 774				filter(invite.getJid().toString());
 775			} else {
 776				mInitialJid = invite.getJid().toString();
 777			}
 778			return true;
 779		}
 780	}
 781
 782	private void displayVerificationWarningDialog(final Contact contact, final Invite invite) {
 783		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 784		builder.setTitle(R.string.verify_omemo_keys);
 785		View view = getLayoutInflater().inflate(R.layout.dialog_verify_fingerprints, null);
 786		final CheckBox isTrustedSource = (CheckBox) view.findViewById(R.id.trusted_source);
 787		TextView warning = (TextView) view.findViewById(R.id.warning);
 788		String jid = contact.getJid().asBareJid().toString();
 789		SpannableString spannable = new SpannableString(getString(R.string.verifying_omemo_keys_trusted_source, jid, contact.getDisplayName()));
 790		int start = spannable.toString().indexOf(jid);
 791		if (start >= 0) {
 792			spannable.setSpan(new TypefaceSpan("monospace"), start, start + jid.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
 793		}
 794		warning.setText(spannable);
 795		builder.setView(view);
 796		builder.setPositiveButton(R.string.confirm, (dialog, which) -> {
 797			if (isTrustedSource.isChecked() && invite.hasFingerprints()) {
 798				xmppConnectionService.verifyFingerprints(contact, invite.getFingerprints());
 799			}
 800			switchToConversation(contact, invite.getBody());
 801		});
 802		builder.setNegativeButton(R.string.cancel, (dialog, which) -> StartConversationActivity.this.finish());
 803		AlertDialog dialog = builder.create();
 804		dialog.setCanceledOnTouchOutside(false);
 805		dialog.setOnCancelListener(dialog1 -> StartConversationActivity.this.finish());
 806		dialog.show();
 807	}
 808
 809	protected void filter(String needle) {
 810		if (xmppConnectionServiceBound) {
 811			this.filterContacts(needle);
 812			this.filterConferences(needle);
 813		}
 814	}
 815
 816	protected void filterContacts(String needle) {
 817		this.contacts.clear();
 818		for (Account account : xmppConnectionService.getAccounts()) {
 819			if (account.getStatus() != Account.State.DISABLED) {
 820				for (Contact contact : account.getRoster().getContacts()) {
 821					Presence.Status s = contact.getShownStatus();
 822					if (contact.showInRoster() && contact.match(this, needle)
 823							&& (!this.mHideOfflineContacts
 824							|| (needle != null && !needle.trim().isEmpty())
 825							|| s.compareTo(Presence.Status.OFFLINE) < 0)) {
 826						this.contacts.add(contact);
 827					}
 828				}
 829			}
 830		}
 831		Collections.sort(this.contacts);
 832		mContactsAdapter.notifyDataSetChanged();
 833	}
 834
 835	protected void filterConferences(String needle) {
 836		this.conferences.clear();
 837		for (Account account : xmppConnectionService.getAccounts()) {
 838			if (account.getStatus() != Account.State.DISABLED) {
 839				for (Bookmark bookmark : account.getBookmarks()) {
 840					if (bookmark.match(this, needle)) {
 841						this.conferences.add(bookmark);
 842					}
 843				}
 844			}
 845		}
 846		Collections.sort(this.conferences);
 847		mConferenceAdapter.notifyDataSetChanged();
 848	}
 849
 850	private void onTabChanged() {
 851		@DrawableRes final int fabDrawable;
 852		if (getSupportActionBar().getSelectedNavigationIndex() == 0) {
 853			fabDrawable = R.drawable.ic_person_add_white_24dp;
 854		} else {
 855			fabDrawable = R.drawable.ic_group_add_white_24dp;
 856		}
 857		binding.fab.setImageResource(fabDrawable);
 858		invalidateOptionsMenu();
 859	}
 860
 861	@Override
 862	public void OnUpdateBlocklist(final Status status) {
 863		refreshUi();
 864	}
 865
 866	@Override
 867	protected void refreshUiReal() {
 868		if (mSearchEditText != null) {
 869			filter(mSearchEditText.getText().toString());
 870		}
 871	}
 872
 873	@Override
 874	public void onCreateDialogPositiveClick(Spinner spinner,String subject) {
 875		if (!xmppConnectionServiceBound) {
 876			return;
 877		}
 878		final Account account = getSelectedAccount(spinner);
 879		if (account == null) {
 880			return;
 881		}
 882		Intent intent = new Intent(getApplicationContext(), ChooseContactActivity.class);
 883		intent.putExtra("multiple", true);
 884		intent.putExtra("show_enter_jid", true);
 885		intent.putExtra("subject", subject);
 886		intent.putExtra(EXTRA_ACCOUNT, account.getJid().asBareJid().toString());
 887		intent.putExtra(ChooseContactActivity.EXTRA_TITLE_RES_ID, R.string.choose_participants);
 888		startActivityForResult(intent, REQUEST_CREATE_CONFERENCE);
 889	}
 890
 891	@Override
 892	public void onJoinDialogPositiveClick(Dialog dialog, Spinner spinner, AutoCompleteTextView jid, boolean isBookmarkChecked) {
 893		if (!xmppConnectionServiceBound) {
 894			return;
 895		}
 896		final Account account = getSelectedAccount(spinner);
 897		if (account == null) {
 898			return;
 899		}
 900		final Jid conferenceJid;
 901		try {
 902			conferenceJid = Jid.of(jid.getText().toString());
 903		} catch (final IllegalArgumentException e) {
 904			jid.setError(getString(R.string.invalid_jid));
 905			return;
 906		}
 907
 908		if (isBookmarkChecked) {
 909			if (account.hasBookmarkFor(conferenceJid)) {
 910				jid.setError(getString(R.string.bookmark_already_exists));
 911			} else {
 912				final Bookmark bookmark = new Bookmark(account, conferenceJid.asBareJid());
 913				bookmark.setAutojoin(getPreferences().getBoolean("autojoin", getResources().getBoolean(R.bool.autojoin)));
 914				String nick = conferenceJid.getResource();
 915				if (nick != null && !nick.isEmpty()) {
 916					bookmark.setNick(nick);
 917				}
 918				account.getBookmarks().add(bookmark);
 919				xmppConnectionService.pushBookmarks(account);
 920				final Conversation conversation = xmppConnectionService
 921						.findOrCreateConversation(account, conferenceJid, true, true, true);
 922				bookmark.setConversation(conversation);
 923				dialog.dismiss();
 924				switchToConversation(conversation);
 925			}
 926		} else {
 927			final Conversation conversation = xmppConnectionService
 928					.findOrCreateConversation(account, conferenceJid, true, true, true);
 929			dialog.dismiss();
 930			switchToConversation(conversation);
 931		}
 932	}
 933
 934	public static class MyListFragment extends ListFragment {
 935		private AdapterView.OnItemClickListener mOnItemClickListener;
 936		private int mResContextMenu;
 937
 938		public void setContextMenu(final int res) {
 939			this.mResContextMenu = res;
 940		}
 941
 942		@Override
 943		public void onListItemClick(final ListView l, final View v, final int position, final long id) {
 944			if (mOnItemClickListener != null) {
 945				mOnItemClickListener.onItemClick(l, v, position, id);
 946			}
 947		}
 948
 949		public void setOnListItemClickListener(AdapterView.OnItemClickListener l) {
 950			this.mOnItemClickListener = l;
 951		}
 952
 953		@Override
 954		public void onViewCreated(@NonNull final View view, final Bundle savedInstanceState) {
 955			super.onViewCreated(view, savedInstanceState);
 956			registerForContextMenu(getListView());
 957			getListView().setFastScrollEnabled(true);
 958			getListView().setDivider(null);
 959			getListView().setDividerHeight(0);
 960		}
 961
 962		@Override
 963		public void onCreateContextMenu(final ContextMenu menu, final View v,
 964		                                final ContextMenuInfo menuInfo) {
 965			super.onCreateContextMenu(menu, v, menuInfo);
 966			final StartConversationActivity activity = (StartConversationActivity) getActivity();
 967			if (activity == null) {
 968				return;
 969			}
 970			activity.getMenuInflater().inflate(mResContextMenu, menu);
 971			final AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
 972			if (mResContextMenu == R.menu.conference_context) {
 973				activity.conference_context_id = acmi.position;
 974			} else if (mResContextMenu == R.menu.contact_context) {
 975				activity.contact_context_id = acmi.position;
 976				final Contact contact = (Contact) activity.contacts.get(acmi.position);
 977				final MenuItem blockUnblockItem = menu.findItem(R.id.context_contact_block_unblock);
 978				final MenuItem showContactDetailsItem = menu.findItem(R.id.context_contact_details);
 979				if (contact.isSelf()) {
 980					showContactDetailsItem.setVisible(false);
 981				}
 982				XmppConnection xmpp = contact.getAccount().getXmppConnection();
 983				if (xmpp != null && xmpp.getFeatures().blocking() && !contact.isSelf()) {
 984					if (contact.isBlocked()) {
 985						blockUnblockItem.setTitle(R.string.unblock_contact);
 986					} else {
 987						blockUnblockItem.setTitle(R.string.block_contact);
 988					}
 989				} else {
 990					blockUnblockItem.setVisible(false);
 991				}
 992			}
 993		}
 994
 995		@Override
 996		public boolean onContextItemSelected(final MenuItem item) {
 997			StartConversationActivity activity = (StartConversationActivity) getActivity();
 998			if (activity == null) {
 999				return true;
1000			}
1001			switch (item.getItemId()) {
1002				case R.id.context_start_conversation:
1003					activity.openConversationForContact();
1004					break;
1005				case R.id.context_contact_details:
1006					activity.openDetailsForContact();
1007					break;
1008				case R.id.context_contact_block_unblock:
1009					activity.toggleContactBlock();
1010					break;
1011				case R.id.context_delete_contact:
1012					activity.deleteContact();
1013					break;
1014				case R.id.context_join_conference:
1015					activity.openConversationForBookmark();
1016					break;
1017				case R.id.context_share_uri:
1018					activity.shareBookmarkUri();
1019					break;
1020				case R.id.context_delete_conference:
1021					activity.deleteConference();
1022			}
1023			return true;
1024		}
1025	}
1026
1027	public class ListPagerAdapter extends PagerAdapter {
1028		FragmentManager fragmentManager;
1029		MyListFragment[] fragments;
1030
1031		public ListPagerAdapter(FragmentManager fm) {
1032			fragmentManager = fm;
1033			fragments = new MyListFragment[2];
1034		}
1035
1036		public void requestFocus(int pos) {
1037			if (fragments.length > pos) {
1038				fragments[pos].getListView().requestFocus();
1039			}
1040		}
1041
1042		@Override
1043		public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {
1044			assert (0 <= position && position < fragments.length);
1045			FragmentTransaction trans = fragmentManager.beginTransaction();
1046			trans.remove(fragments[position]);
1047			trans.commit();
1048			fragments[position] = null;
1049		}
1050
1051		@Override
1052		public Fragment instantiateItem(@NonNull ViewGroup container, int position) {
1053			Fragment fragment = getItem(position);
1054			FragmentTransaction trans = fragmentManager.beginTransaction();
1055			trans.add(container.getId(), fragment, "fragment:" + position);
1056			trans.commit();
1057			return fragment;
1058		}
1059
1060		@Override
1061		public int getCount() {
1062			return fragments.length;
1063		}
1064
1065		@Override
1066		public boolean isViewFromObject(@NonNull View view, @NonNull Object fragment) {
1067			return ((Fragment) fragment).getView() == view;
1068		}
1069
1070		public Fragment getItem(int position) {
1071			assert (0 <= position && position < fragments.length);
1072			if (fragments[position] == null) {
1073				final MyListFragment listFragment = new MyListFragment();
1074				if (position == 1) {
1075					listFragment.setListAdapter(mConferenceAdapter);
1076					listFragment.setContextMenu(R.menu.conference_context);
1077					listFragment.setOnListItemClickListener((arg0, arg1, p, arg3) -> openConversationForBookmark(p));
1078				} else {
1079
1080					listFragment.setListAdapter(mContactsAdapter);
1081					listFragment.setContextMenu(R.menu.contact_context);
1082					listFragment.setOnListItemClickListener((arg0, arg1, p, arg3) -> openConversationForContact(p));
1083				}
1084				fragments[position] = listFragment;
1085			}
1086			return fragments[position];
1087		}
1088	}
1089
1090	private class Invite extends XmppUri {
1091
1092		public String account;
1093
1094		public Invite(final Uri uri) {
1095			super(uri);
1096		}
1097
1098		public Invite(final String uri) {
1099			super(uri);
1100		}
1101
1102		public Invite(Uri uri, boolean safeSource) {
1103			super(uri, safeSource);
1104		}
1105
1106		boolean invite() {
1107			if (!isJidValid()) {
1108				Toast.makeText(StartConversationActivity.this, R.string.invalid_jid, Toast.LENGTH_SHORT).show();
1109				return false;
1110			}
1111			if (getJid() != null) {
1112				return handleJid(this);
1113			}
1114			return false;
1115		}
1116	}
1117}