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.Collections;
  63import java.util.List;
  64import java.util.concurrent.atomic.AtomicBoolean;
  65
  66import eu.siacs.conversations.Config;
  67import eu.siacs.conversations.R;
  68import eu.siacs.conversations.databinding.ActivityStartConversationBinding;
  69import eu.siacs.conversations.entities.Account;
  70import eu.siacs.conversations.entities.Bookmark;
  71import eu.siacs.conversations.entities.Contact;
  72import eu.siacs.conversations.entities.Conversation;
  73import eu.siacs.conversations.entities.ListItem;
  74import eu.siacs.conversations.entities.Presence;
  75import eu.siacs.conversations.services.XmppConnectionService.OnRosterUpdate;
  76import eu.siacs.conversations.ui.adapter.KnownHostsAdapter;
  77import eu.siacs.conversations.ui.adapter.ListItemAdapter;
  78import eu.siacs.conversations.ui.service.EmojiService;
  79import eu.siacs.conversations.ui.util.DelayedHintHelper;
  80import eu.siacs.conversations.utils.XmppUri;
  81import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
  82import eu.siacs.conversations.xmpp.XmppConnection;
  83import eu.siacs.conversations.xmpp.jid.InvalidJidException;
  84import eu.siacs.conversations.xmpp.jid.Jid;
  85
  86public class StartConversationActivity extends XmppActivity implements OnRosterUpdate, OnUpdateBlocklist {
  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 List<String> mKnownHosts;
  99	private List<String> mKnownConferenceHosts;
 100	private Invite mPendingInvite = null;
 101	private EditText mSearchEditText;
 102	private AtomicBoolean mRequestedContactsPermission = new AtomicBoolean(false);
 103	private Dialog mCurrentDialog = null;
 104	private boolean mHideOfflineContacts = false;
 105	private MenuItem.OnActionExpandListener mOnActionExpandListener = new MenuItem.OnActionExpandListener() {
 106
 107		@Override
 108		public boolean onMenuItemActionExpand(MenuItem item) {
 109			mSearchEditText.post(() -> {
 110				mSearchEditText.requestFocus();
 111				InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
 112				imm.showSoftInput(mSearchEditText, InputMethodManager.SHOW_IMPLICIT);
 113			});
 114
 115			return true;
 116		}
 117
 118		@Override
 119		public boolean onMenuItemActionCollapse(MenuItem item) {
 120			hideKeyboard();
 121			mSearchEditText.setText("");
 122			filter(null);
 123			return true;
 124		}
 125	};
 126	private TextWatcher mSearchTextWatcher = new TextWatcher() {
 127
 128		@Override
 129		public void afterTextChanged(Editable editable) {
 130			filter(editable.toString());
 131		}
 132
 133		@Override
 134		public void beforeTextChanged(CharSequence s, int start, int count,
 135		                              int after) {
 136		}
 137
 138		@Override
 139		public void onTextChanged(CharSequence s, int start, int before, int count) {
 140		}
 141	};
 142	private TextView.OnEditorActionListener mSearchDone = new TextView.OnEditorActionListener() {
 143		@Override
 144		public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
 145			int pos = getSupportActionBar().getSelectedNavigationIndex();
 146			if (pos == 0) {
 147				if (contacts.size() == 1) {
 148					openConversationForContact((Contact) contacts.get(0));
 149					return true;
 150				}
 151			} else {
 152				if (conferences.size() == 1) {
 153					openConversationsForBookmark((Bookmark) conferences.get(0));
 154					return true;
 155				}
 156			}
 157			hideKeyboard();
 158			mListPagerAdapter.requestFocus(pos);
 159			return true;
 160		}
 161	};
 162	private MenuItem mMenuSearchView;
 163	private ListItemAdapter.OnTagClickedListener mOnTagClickedListener = new ListItemAdapter.OnTagClickedListener() {
 164		@Override
 165		public void onTagClicked(String tag) {
 166			if (mMenuSearchView != null) {
 167				mMenuSearchView.expandActionView();
 168				mSearchEditText.setText("");
 169				mSearchEditText.append(tag);
 170				filter(tag);
 171			}
 172		}
 173	};
 174	private String mInitialJid;
 175	private Pair<Integer, Intent> mPostponedActivityResult;
 176	private Toast mToast;
 177	private UiCallback<Conversation> mAdhocConferenceCallback = new UiCallback<Conversation>() {
 178		@Override
 179		public void success(final Conversation conversation) {
 180			runOnUiThread(() -> {
 181				hideToast();
 182				switchToConversation(conversation);
 183			});
 184		}
 185
 186		@Override
 187		public void error(final int errorCode, Conversation object) {
 188			runOnUiThread(() -> replaceToast(getString(errorCode)));
 189		}
 190
 191		@Override
 192		public void userInputRequried(PendingIntent pi, Conversation object) {
 193
 194		}
 195	};
 196	private ActivityStartConversationBinding binding;
 197	private ActionBar.TabListener mTabListener = new ActionBar.TabListener() {
 198
 199		@Override
 200		public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction ft) {
 201			return;
 202		}
 203
 204		@Override
 205		public void onTabSelected(ActionBar.Tab tab, FragmentTransaction ft) {
 206			binding.startConversationViewPager.setCurrentItem(tab.getPosition());
 207			onTabChanged();
 208		}
 209
 210		@Override
 211		public void onTabReselected(ActionBar.Tab tab, FragmentTransaction ft) {
 212			return;
 213		}
 214	};
 215	private ViewPager.SimpleOnPageChangeListener mOnPageChangeListener = new ViewPager.SimpleOnPageChangeListener() {
 216		@Override
 217		public void onPageSelected(int position) {
 218			ActionBar actionBar = getSupportActionBar();
 219			if (actionBar != null) {
 220				actionBar.setSelectedNavigationItem(position);
 221			}
 222			onTabChanged();
 223		}
 224	};
 225
 226	public static void populateAccountSpinner(Context context, List<String> accounts, Spinner spinner) {
 227		if (accounts.size() > 0) {
 228			ArrayAdapter<String> adapter = new ArrayAdapter<>(context, R.layout.simple_list_item, accounts);
 229			adapter.setDropDownViewResource(R.layout.simple_list_item);
 230			spinner.setAdapter(adapter);
 231			spinner.setEnabled(true);
 232		} else {
 233			ArrayAdapter<String> adapter = new ArrayAdapter<>(context,
 234					R.layout.simple_list_item,
 235					Arrays.asList(context.getString(R.string.no_accounts)));
 236			adapter.setDropDownViewResource(R.layout.simple_list_item);
 237			spinner.setAdapter(adapter);
 238			spinner.setEnabled(false);
 239		}
 240	}
 241
 242	public static void launch(Context context) {
 243		final Intent intent = new Intent(context, StartConversationActivity.class);
 244		context.startActivity(intent);
 245	}
 246
 247	protected void hideToast() {
 248		if (mToast != null) {
 249			mToast.cancel();
 250		}
 251	}
 252
 253	protected void replaceToast(String msg) {
 254		hideToast();
 255		mToast = Toast.makeText(this, msg, Toast.LENGTH_LONG);
 256		mToast.show();
 257	}
 258
 259	@Override
 260	public void onRosterUpdate() {
 261		this.refreshUi();
 262	}
 263
 264	@Override
 265	public void onCreate(Bundle savedInstanceState) {
 266		super.onCreate(savedInstanceState);
 267		new EmojiService(this).init();
 268		this.binding = DataBindingUtil.setContentView(this, R.layout.activity_start_conversation);
 269		this.binding.fab.setOnClickListener((v) -> {
 270			if (getSupportActionBar().getSelectedNavigationIndex() == 0) {
 271				String searchString = mSearchEditText != null ? mSearchEditText.getText().toString() : null;
 272				if (searchString != null && !searchString.trim().isEmpty()) {
 273					try {
 274						Jid jid = Jid.fromString(searchString);
 275						if (!jid.isDomainJid() && jid.isBareJid() && jid.getDomainpart().contains(".")) {
 276							showCreateContactDialog(jid.toString(),null);
 277							return;
 278						}
 279					} catch (InvalidJidException ignored) {
 280						//ignore and fall through
 281					}
 282				}
 283				showCreateContactDialog(null, null);
 284			} else {
 285				showCreateConferenceDialog();
 286			}
 287		});
 288		ActionBar actionBar = getSupportActionBar();
 289		actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
 290
 291		ActionBar.Tab mContactsTab = actionBar.newTab().setText(R.string.contacts).setTabListener(mTabListener);
 292		ActionBar.Tab mConferencesTab = actionBar.newTab().setText(R.string.conferences).setTabListener(mTabListener);
 293		actionBar.addTab(mContactsTab);
 294		actionBar.addTab(mConferencesTab);
 295
 296		binding.startConversationViewPager.setOnPageChangeListener(mOnPageChangeListener);
 297		mListPagerAdapter = new ListPagerAdapter(getSupportFragmentManager());
 298		binding.startConversationViewPager.setAdapter(mListPagerAdapter);
 299
 300		mConferenceAdapter = new ListItemAdapter(this, conferences);
 301		mContactsAdapter = new ListItemAdapter(this, contacts);
 302		mContactsAdapter.setOnTagClickedListener(this.mOnTagClickedListener);
 303		this.mHideOfflineContacts = getPreferences().getBoolean("hide_offline", false);
 304
 305	}
 306
 307	@Override
 308	public void onStart() {
 309		super.onStart();
 310		final int theme = findTheme();
 311		if (this.mTheme != theme) {
 312			recreate();
 313		} else {
 314			Intent i = getIntent();
 315			if (i == null || !i.hasExtra(WelcomeActivity.EXTRA_INVITE_URI)) {
 316				askForContactsPermissions();
 317			}
 318		}
 319		mConferenceAdapter.refreshSettings();
 320		mContactsAdapter.refreshSettings();
 321	}
 322
 323	@Override
 324	public void onStop() {
 325		if (mCurrentDialog != null) {
 326			mCurrentDialog.dismiss();
 327		}
 328		super.onStop();
 329	}
 330
 331	@Override
 332	public void onNewIntent(Intent intent) {
 333		if (xmppConnectionServiceBound) {
 334			handleIntent(intent);
 335		} else {
 336			setIntent(intent);
 337		}
 338	}
 339
 340	protected void openConversationForContact(int position) {
 341		Contact contact = (Contact) contacts.get(position);
 342		openConversationForContact(contact);
 343	}
 344
 345	protected void openConversationForContact(Contact contact) {
 346		Conversation conversation = xmppConnectionService.findOrCreateConversation(contact.getAccount(), contact.getJid(), false, true);
 347		switchToConversation(conversation);
 348	}
 349
 350	protected void openConversationForContact() {
 351		int position = contact_context_id;
 352		openConversationForContact(position);
 353	}
 354
 355	protected void openConversationForBookmark() {
 356		openConversationForBookmark(conference_context_id);
 357	}
 358
 359	protected void openConversationForBookmark(int position) {
 360		Bookmark bookmark = (Bookmark) conferences.get(position);
 361		openConversationsForBookmark(bookmark);
 362	}
 363
 364	protected void shareBookmarkUri() {
 365		shareBookmarkUri(conference_context_id);
 366	}
 367
 368	protected void shareBookmarkUri(int position) {
 369		Bookmark bookmark = (Bookmark) conferences.get(position);
 370		Intent shareIntent = new Intent();
 371		shareIntent.setAction(Intent.ACTION_SEND);
 372		shareIntent.putExtra(Intent.EXTRA_TEXT, "xmpp:" + bookmark.getJid().toBareJid().toString() + "?join");
 373		shareIntent.setType("text/plain");
 374		try {
 375			startActivity(Intent.createChooser(shareIntent, getText(R.string.share_uri_with)));
 376		} catch (ActivityNotFoundException e) {
 377			Toast.makeText(this, R.string.no_application_to_share_uri, Toast.LENGTH_SHORT).show();
 378		}
 379	}
 380
 381	protected void openConversationsForBookmark(Bookmark bookmark) {
 382		Jid jid = bookmark.getJid();
 383		if (jid == null) {
 384			Toast.makeText(this, R.string.invalid_jid, Toast.LENGTH_SHORT).show();
 385			return;
 386		}
 387		Conversation conversation = xmppConnectionService.findOrCreateConversation(bookmark.getAccount(), jid, true, true, true);
 388		bookmark.setConversation(conversation);
 389		if (!bookmark.autojoin() && getPreferences().getBoolean("autojoin", getResources().getBoolean(R.bool.autojoin))) {
 390			bookmark.setAutojoin(true);
 391			xmppConnectionService.pushBookmarks(bookmark.getAccount());
 392		}
 393		switchToConversation(conversation);
 394	}
 395
 396	protected void openDetailsForContact() {
 397		int position = contact_context_id;
 398		Contact contact = (Contact) contacts.get(position);
 399		switchToContactDetails(contact);
 400	}
 401
 402	protected void toggleContactBlock() {
 403		final int position = contact_context_id;
 404		BlockContactDialog.show(this, (Contact) contacts.get(position));
 405	}
 406
 407	protected void deleteContact() {
 408		final int position = contact_context_id;
 409		final Contact contact = (Contact) contacts.get(position);
 410		final AlertDialog.Builder builder = new AlertDialog.Builder(this);
 411		builder.setNegativeButton(R.string.cancel, null);
 412		builder.setTitle(R.string.action_delete_contact);
 413		builder.setMessage(getString(R.string.remove_contact_text,
 414				contact.getJid()));
 415		builder.setPositiveButton(R.string.delete, new OnClickListener() {
 416
 417			@Override
 418			public void onClick(DialogInterface dialog, int which) {
 419				xmppConnectionService.deleteContactOnServer(contact);
 420				filter(mSearchEditText.getText().toString());
 421			}
 422		});
 423		builder.create().show();
 424	}
 425
 426	protected void deleteConference() {
 427		int position = conference_context_id;
 428		final Bookmark bookmark = (Bookmark) conferences.get(position);
 429
 430		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 431		builder.setNegativeButton(R.string.cancel, null);
 432		builder.setTitle(R.string.delete_bookmark);
 433		builder.setMessage(getString(R.string.remove_bookmark_text,
 434				bookmark.getJid()));
 435		builder.setPositiveButton(R.string.delete, new OnClickListener() {
 436
 437			@Override
 438			public void onClick(DialogInterface dialog, int which) {
 439				bookmark.setConversation(null);
 440				Account account = bookmark.getAccount();
 441				account.getBookmarks().remove(bookmark);
 442				xmppConnectionService.pushBookmarks(account);
 443				filter(mSearchEditText.getText().toString());
 444			}
 445		});
 446		builder.create().show();
 447
 448	}
 449
 450	@SuppressLint("InflateParams")
 451	protected void showCreateContactDialog(final String prefilledJid, final Invite invite) {
 452		EnterJidDialog dialog = new EnterJidDialog(
 453				this, mKnownHosts, mActivatedAccounts,
 454				getString(R.string.dialog_title_create_contact), getString(R.string.create),
 455				prefilledJid, null, 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
 487		mCurrentDialog = dialog.show();
 488	}
 489
 490	@SuppressLint("InflateParams")
 491	protected void showJoinConferenceDialog(final String prefilledJid) {
 492		final AlertDialog.Builder builder = new AlertDialog.Builder(this);
 493		builder.setTitle(R.string.dialog_title_join_conference);
 494		final View dialogView = getLayoutInflater().inflate(R.layout.join_conference_dialog, null);
 495		final Spinner spinner = dialogView.findViewById(R.id.account);
 496		final AutoCompleteTextView jid = dialogView.findViewById(R.id.jid);
 497		DelayedHintHelper.setHint(R.string.conference_address_example,jid);
 498		jid.setAdapter(new KnownHostsAdapter(this, R.layout.simple_list_item, mKnownConferenceHosts));
 499		if (prefilledJid != null) {
 500			jid.append(prefilledJid);
 501		}
 502		populateAccountSpinner(this, mActivatedAccounts, spinner);
 503		final Checkable bookmarkCheckBox = (CheckBox) dialogView
 504				.findViewById(R.id.bookmark);
 505		builder.setView(dialogView);
 506		builder.setNegativeButton(R.string.cancel, null);
 507		builder.setPositiveButton(R.string.join, null);
 508		final AlertDialog dialog = builder.create();
 509		dialog.show();
 510		mCurrentDialog = dialog;
 511		dialog.getButton(AlertDialog.BUTTON_POSITIVE).setOnClickListener(v -> {
 512			if (!xmppConnectionServiceBound) {
 513				return;
 514			}
 515			final Account account = getSelectedAccount(spinner);
 516			if (account == null) {
 517				return;
 518			}
 519			final Jid conferenceJid;
 520			try {
 521				conferenceJid = Jid.fromString(jid.getText().toString());
 522			} catch (final InvalidJidException e) {
 523				jid.setError(getString(R.string.invalid_jid));
 524				return;
 525			}
 526
 527			if (bookmarkCheckBox.isChecked()) {
 528				if (account.hasBookmarkFor(conferenceJid)) {
 529					jid.setError(getString(R.string.bookmark_already_exists));
 530				} else {
 531					final Bookmark bookmark = new Bookmark(account, conferenceJid.toBareJid());
 532					bookmark.setAutojoin(getPreferences().getBoolean("autojoin", getResources().getBoolean(R.bool.autojoin)));
 533					String nick = conferenceJid.getResourcepart();
 534					if (nick != null && !nick.isEmpty()) {
 535						bookmark.setNick(nick);
 536					}
 537					account.getBookmarks().add(bookmark);
 538					xmppConnectionService.pushBookmarks(account);
 539					final Conversation conversation = xmppConnectionService
 540							.findOrCreateConversation(account, conferenceJid, true, true, true);
 541					bookmark.setConversation(conversation);
 542					dialog.dismiss();
 543					mCurrentDialog = null;
 544					switchToConversation(conversation);
 545				}
 546			} else {
 547				final Conversation conversation = xmppConnectionService
 548						.findOrCreateConversation(account, conferenceJid, true, true, true);
 549				dialog.dismiss();
 550				mCurrentDialog = null;
 551				switchToConversation(conversation);
 552			}
 553		});
 554	}
 555
 556	private void showCreateConferenceDialog() {
 557		final AlertDialog.Builder builder = new AlertDialog.Builder(this);
 558		builder.setTitle(R.string.dialog_title_create_conference);
 559		final View dialogView = getLayoutInflater().inflate(R.layout.create_conference_dialog, null);
 560		final Spinner spinner = dialogView.findViewById(R.id.account);
 561		final EditText subject = dialogView.findViewById(R.id.subject);
 562		populateAccountSpinner(this, mActivatedAccounts, spinner);
 563		builder.setView(dialogView);
 564		builder.setPositiveButton(R.string.choose_participants, new OnClickListener() {
 565			@Override
 566			public void onClick(DialogInterface dialog, int which) {
 567				if (!xmppConnectionServiceBound) {
 568					return;
 569				}
 570				final Account account = getSelectedAccount(spinner);
 571				if (account == null) {
 572					return;
 573				}
 574				Intent intent = new Intent(getApplicationContext(), ChooseContactActivity.class);
 575				intent.putExtra("multiple", true);
 576				intent.putExtra("show_enter_jid", true);
 577				intent.putExtra("subject", subject.getText().toString());
 578				intent.putExtra(EXTRA_ACCOUNT, account.getJid().toBareJid().toString());
 579				intent.putExtra(ChooseContactActivity.EXTRA_TITLE_RES_ID, R.string.choose_participants);
 580				startActivityForResult(intent, REQUEST_CREATE_CONFERENCE);
 581			}
 582		});
 583		builder.setNegativeButton(R.string.cancel, null);
 584		mCurrentDialog = builder.create();
 585		mCurrentDialog.show();
 586	}
 587
 588	private Account getSelectedAccount(Spinner spinner) {
 589		if (!spinner.isEnabled()) {
 590			return null;
 591		}
 592		Jid jid;
 593		try {
 594			if (Config.DOMAIN_LOCK != null) {
 595				jid = Jid.fromParts((String) spinner.getSelectedItem(), Config.DOMAIN_LOCK, null);
 596			} else {
 597				jid = Jid.fromString((String) spinner.getSelectedItem());
 598			}
 599		} catch (final InvalidJidException e) {
 600			return null;
 601		}
 602		return xmppConnectionService.findAccountByJid(jid);
 603	}
 604
 605	protected void switchToConversation(Contact contact, String body) {
 606		Conversation conversation = xmppConnectionService
 607				.findOrCreateConversation(contact.getAccount(),
 608						contact.getJid(), false, true);
 609		switchToConversation(conversation, body, false);
 610	}
 611
 612	@Override
 613	public boolean onCreateOptionsMenu(Menu menu) {
 614		getMenuInflater().inflate(R.menu.start_conversation, menu);
 615		MenuItem menuHideOffline = menu.findItem(R.id.action_hide_offline);
 616		MenuItem joinGroupChat = menu.findItem(R.id.action_join_conference);
 617		ActionBar bar = getSupportActionBar();
 618		joinGroupChat.setVisible(bar != null && bar.getSelectedNavigationIndex() == 1);
 619		menuHideOffline.setChecked(this.mHideOfflineContacts);
 620		mMenuSearchView = menu.findItem(R.id.action_search);
 621		mMenuSearchView.setOnActionExpandListener(mOnActionExpandListener);
 622		View mSearchView = mMenuSearchView.getActionView();
 623		mSearchEditText = mSearchView.findViewById(R.id.search_field);
 624		mSearchEditText.addTextChangedListener(mSearchTextWatcher);
 625		mSearchEditText.setOnEditorActionListener(mSearchDone);
 626		if (mInitialJid != null) {
 627			MenuItemCompat.expandActionView(mMenuSearchView);
 628			mSearchEditText.append(mInitialJid);
 629			filter(mInitialJid);
 630		}
 631		return super.onCreateOptionsMenu(menu);
 632	}
 633
 634	@Override
 635	public boolean onOptionsItemSelected(MenuItem item) {
 636		switch (item.getItemId()) {
 637			case R.id.action_join_conference:
 638				showJoinConferenceDialog(null);
 639				return true;
 640			case R.id.action_scan_qr_code:
 641				UriHandlerActivity.scan(this);
 642				return true;
 643			case R.id.action_hide_offline:
 644				mHideOfflineContacts = !item.isChecked();
 645				getPreferences().edit().putBoolean("hide_offline", mHideOfflineContacts).commit();
 646				if (mSearchEditText != null) {
 647					filter(mSearchEditText.getText().toString());
 648				}
 649				invalidateOptionsMenu();
 650		}
 651		return super.onOptionsItemSelected(item);
 652	}
 653
 654	@Override
 655	public boolean onKeyUp(int keyCode, KeyEvent event) {
 656		if (keyCode == KeyEvent.KEYCODE_SEARCH && !event.isLongPress()) {
 657			openSearch();
 658			return true;
 659		}
 660		int c = event.getUnicodeChar();
 661		if (c > 32) {
 662			if (mSearchEditText != null && !mSearchEditText.isFocused()) {
 663				openSearch();
 664				mSearchEditText.append(Character.toString((char) c));
 665				return true;
 666			}
 667		}
 668		return super.onKeyUp(keyCode, event);
 669	}
 670
 671	private void openSearch() {
 672		if (mMenuSearchView != null) {
 673			mMenuSearchView.expandActionView();
 674		}
 675	}
 676
 677	@Override
 678	public void onActivityResult(int requestCode, int resultCode, Intent intent) {
 679		if (resultCode == RESULT_OK) {
 680			if (xmppConnectionServiceBound) {
 681				this.mPostponedActivityResult = null;
 682				if (requestCode == REQUEST_CREATE_CONFERENCE) {
 683					Account account = extractAccount(intent);
 684					final String subject = intent.getStringExtra("subject");
 685					List<Jid> jids = new ArrayList<>();
 686					if (intent.getBooleanExtra("multiple", false)) {
 687						String[] toAdd = intent.getStringArrayExtra("contacts");
 688						for (String item : toAdd) {
 689							try {
 690								jids.add(Jid.fromString(item));
 691							} catch (InvalidJidException e) {
 692								//ignored
 693							}
 694						}
 695					} else {
 696						try {
 697							jids.add(Jid.fromString(intent.getStringExtra("contact")));
 698						} catch (Exception e) {
 699							//ignored
 700						}
 701					}
 702					if (account != null && jids.size() > 0) {
 703						if (xmppConnectionService.createAdhocConference(account, subject, jids, mAdhocConferenceCallback)) {
 704							mToast = Toast.makeText(this, R.string.creating_conference, Toast.LENGTH_LONG);
 705							mToast.show();
 706						}
 707					}
 708				}
 709			} else {
 710				this.mPostponedActivityResult = new Pair<>(requestCode, intent);
 711			}
 712		}
 713		super.onActivityResult(requestCode, requestCode, intent);
 714	}
 715
 716	private void askForContactsPermissions() {
 717		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 718			if (checkSelfPermission(Manifest.permission.READ_CONTACTS) != PackageManager.PERMISSION_GRANTED) {
 719				if (mRequestedContactsPermission.compareAndSet(false, true)) {
 720					if (shouldShowRequestPermissionRationale(Manifest.permission.READ_CONTACTS)) {
 721						AlertDialog.Builder builder = new AlertDialog.Builder(this);
 722						builder.setTitle(R.string.sync_with_contacts);
 723						builder.setMessage(R.string.sync_with_contacts_long);
 724						builder.setPositiveButton(R.string.next, new OnClickListener() {
 725							@Override
 726							public void onClick(DialogInterface dialog, int which) {
 727								if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 728									requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, REQUEST_SYNC_CONTACTS);
 729								}
 730							}
 731						});
 732						if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
 733							builder.setOnDismissListener(new DialogInterface.OnDismissListener() {
 734								@Override
 735								public void onDismiss(DialogInterface dialog) {
 736									if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 737										requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, REQUEST_SYNC_CONTACTS);
 738									}
 739								}
 740							});
 741						}
 742						builder.create().show();
 743					} else {
 744						requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, 0);
 745					}
 746				}
 747			}
 748		}
 749	}
 750
 751	@Override
 752	public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[], @NonNull int[] grantResults) {
 753		if (grantResults.length > 0)
 754			if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
 755				if (requestCode == REQUEST_SYNC_CONTACTS && xmppConnectionServiceBound) {
 756					xmppConnectionService.loadPhoneContacts();
 757				}
 758			}
 759	}
 760
 761	@Override
 762	protected void onBackendConnected() {
 763		if (mPostponedActivityResult != null) {
 764			onActivityResult(mPostponedActivityResult.first, RESULT_OK, mPostponedActivityResult.second);
 765			this.mPostponedActivityResult = null;
 766		}
 767		this.mActivatedAccounts.clear();
 768		for (Account account : xmppConnectionService.getAccounts()) {
 769			if (account.getStatus() != Account.State.DISABLED) {
 770				if (Config.DOMAIN_LOCK != null) {
 771					this.mActivatedAccounts.add(account.getJid().getLocalpart());
 772				} else {
 773					this.mActivatedAccounts.add(account.getJid().toBareJid().toString());
 774				}
 775			}
 776		}
 777		final Intent intent = getIntent();
 778		final ActionBar ab = getSupportActionBar();
 779		boolean init = intent != null && intent.getBooleanExtra("init", false);
 780		boolean noConversations = xmppConnectionService.getConversations().size() == 0;
 781		if ((init || noConversations) && ab != null) {
 782			ab.setDisplayShowHomeEnabled(false);
 783			ab.setDisplayHomeAsUpEnabled(false);
 784			ab.setHomeButtonEnabled(false);
 785		}
 786		this.mKnownHosts = xmppConnectionService.getKnownHosts();
 787		this.mKnownConferenceHosts = xmppConnectionService.getKnownConferenceHosts();
 788		if (this.mPendingInvite != null) {
 789			mPendingInvite.invite();
 790			this.mPendingInvite = null;
 791			filter(null);
 792		} else if (!handleIntent(getIntent())) {
 793			if (mSearchEditText != null) {
 794				filter(mSearchEditText.getText().toString());
 795			} else {
 796				filter(null);
 797			}
 798		} else {
 799			filter(null);
 800		}
 801		setIntent(null);
 802	}
 803
 804	protected boolean handleIntent(Intent intent) {
 805		if (intent == null) {
 806			return false;
 807		}
 808		final String inviteUri = intent.getStringExtra(WelcomeActivity.EXTRA_INVITE_URI);
 809		if (inviteUri != null) {
 810			Invite invite = new Invite(inviteUri);
 811			if (invite.isJidValid()) {
 812				return invite.invite();
 813			}
 814		}
 815		if (intent.getAction() == null) {
 816			return false;
 817		}
 818		switch (intent.getAction()) {
 819			case Intent.ACTION_SENDTO:
 820			case Intent.ACTION_VIEW:
 821				Uri uri = intent.getData();
 822				if (uri != null) {
 823					Invite invite = new Invite(intent.getData(), false);
 824					invite.account = intent.getStringExtra("account");
 825					return invite.invite();
 826				} else {
 827					return false;
 828				}
 829		}
 830		return false;
 831	}
 832
 833	private boolean handleJid(Invite invite) {
 834		List<Contact> contacts = xmppConnectionService.findContacts(invite.getJid(), invite.account);
 835		if (invite.isAction(XmppUri.ACTION_JOIN)) {
 836			Conversation muc = xmppConnectionService.findFirstMuc(invite.getJid());
 837			if (muc != null) {
 838				switchToConversation(muc, invite.getBody(), false);
 839				return true;
 840			} else {
 841				showJoinConferenceDialog(invite.getJid().toBareJid().toString());
 842				return false;
 843			}
 844		} else if (contacts.size() == 0) {
 845			showCreateContactDialog(invite.getJid().toString(), invite);
 846			return false;
 847		} else if (contacts.size() == 1) {
 848			Contact contact = contacts.get(0);
 849			if (!invite.isSafeSource() && invite.hasFingerprints()) {
 850				displayVerificationWarningDialog(contact, invite);
 851			} else {
 852				if (invite.hasFingerprints()) {
 853					if (xmppConnectionService.verifyFingerprints(contact, invite.getFingerprints())) {
 854						Toast.makeText(this, R.string.verified_fingerprints, Toast.LENGTH_SHORT).show();
 855					}
 856				}
 857				if (invite.account != null) {
 858					xmppConnectionService.getShortcutService().report(contact);
 859				}
 860				switchToConversation(contact, invite.getBody());
 861			}
 862			return true;
 863		} else {
 864			if (mMenuSearchView != null) {
 865				mMenuSearchView.expandActionView();
 866				mSearchEditText.setText("");
 867				mSearchEditText.append(invite.getJid().toString());
 868				filter(invite.getJid().toString());
 869			} else {
 870				mInitialJid = invite.getJid().toString();
 871			}
 872			return true;
 873		}
 874	}
 875
 876	private void displayVerificationWarningDialog(final Contact contact, final Invite invite) {
 877		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 878		builder.setTitle(R.string.verify_omemo_keys);
 879		View view = getLayoutInflater().inflate(R.layout.dialog_verify_fingerprints, null);
 880		final CheckBox isTrustedSource = (CheckBox) view.findViewById(R.id.trusted_source);
 881		TextView warning = (TextView) view.findViewById(R.id.warning);
 882		String jid = contact.getJid().toBareJid().toString();
 883		SpannableString spannable = new SpannableString(getString(R.string.verifying_omemo_keys_trusted_source, jid, contact.getDisplayName()));
 884		int start = spannable.toString().indexOf(jid);
 885		if (start >= 0) {
 886			spannable.setSpan(new TypefaceSpan("monospace"), start, start + jid.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
 887		}
 888		warning.setText(spannable);
 889		builder.setView(view);
 890		builder.setPositiveButton(R.string.confirm, (dialog, which) -> {
 891			if (isTrustedSource.isChecked() && invite.hasFingerprints()) {
 892				xmppConnectionService.verifyFingerprints(contact, invite.getFingerprints());
 893			}
 894			switchToConversation(contact, invite.getBody());
 895		});
 896		builder.setNegativeButton(R.string.cancel, (dialog, which) -> StartConversationActivity.this.finish());
 897		AlertDialog dialog = builder.create();
 898		dialog.setCanceledOnTouchOutside(false);
 899		dialog.setOnCancelListener(dialog1 -> StartConversationActivity.this.finish());
 900		dialog.show();
 901	}
 902
 903	protected void filter(String needle) {
 904		if (xmppConnectionServiceBound) {
 905			this.filterContacts(needle);
 906			this.filterConferences(needle);
 907		}
 908	}
 909
 910	protected void filterContacts(String needle) {
 911		this.contacts.clear();
 912		for (Account account : xmppConnectionService.getAccounts()) {
 913			if (account.getStatus() != Account.State.DISABLED) {
 914				for (Contact contact : account.getRoster().getContacts()) {
 915					Presence.Status s = contact.getShownStatus();
 916					if (contact.showInRoster() && contact.match(this, needle)
 917							&& (!this.mHideOfflineContacts
 918							|| (needle != null && !needle.trim().isEmpty())
 919							|| s.compareTo(Presence.Status.OFFLINE) < 0)) {
 920						this.contacts.add(contact);
 921					}
 922				}
 923			}
 924		}
 925		Collections.sort(this.contacts);
 926		mContactsAdapter.notifyDataSetChanged();
 927	}
 928
 929	protected void filterConferences(String needle) {
 930		this.conferences.clear();
 931		for (Account account : xmppConnectionService.getAccounts()) {
 932			if (account.getStatus() != Account.State.DISABLED) {
 933				for (Bookmark bookmark : account.getBookmarks()) {
 934					if (bookmark.match(this, needle)) {
 935						this.conferences.add(bookmark);
 936					}
 937				}
 938			}
 939		}
 940		Collections.sort(this.conferences);
 941		mConferenceAdapter.notifyDataSetChanged();
 942	}
 943
 944	private void onTabChanged() {
 945		@DrawableRes final int fabDrawable;
 946		if (getSupportActionBar().getSelectedNavigationIndex() == 0) {
 947			fabDrawable = R.drawable.ic_person_add_white_24dp;
 948		} else {
 949			fabDrawable = R.drawable.ic_group_add_white_24dp;
 950		}
 951		binding.fab.setImageResource(fabDrawable);
 952		invalidateOptionsMenu();
 953	}
 954
 955	@Override
 956	public void OnUpdateBlocklist(final Status status) {
 957		refreshUi();
 958	}
 959
 960	@Override
 961	protected void refreshUiReal() {
 962		if (mSearchEditText != null) {
 963			filter(mSearchEditText.getText().toString());
 964		}
 965	}
 966
 967	public static class MyListFragment extends ListFragment {
 968		private AdapterView.OnItemClickListener mOnItemClickListener;
 969		private int mResContextMenu;
 970
 971		public void setContextMenu(final int res) {
 972			this.mResContextMenu = res;
 973		}
 974
 975		@Override
 976		public void onListItemClick(final ListView l, final View v, final int position, final long id) {
 977			if (mOnItemClickListener != null) {
 978				mOnItemClickListener.onItemClick(l, v, position, id);
 979			}
 980		}
 981
 982		public void setOnListItemClickListener(AdapterView.OnItemClickListener l) {
 983			this.mOnItemClickListener = l;
 984		}
 985
 986		@Override
 987		public void onViewCreated(@NonNull final View view, final Bundle savedInstanceState) {
 988			super.onViewCreated(view, savedInstanceState);
 989			registerForContextMenu(getListView());
 990			getListView().setFastScrollEnabled(true);
 991			getListView().setDivider(null);
 992			getListView().setDividerHeight(0);
 993		}
 994
 995		@Override
 996		public void onCreateContextMenu(final ContextMenu menu, final View v,
 997		                                final ContextMenuInfo menuInfo) {
 998			super.onCreateContextMenu(menu, v, menuInfo);
 999			final StartConversationActivity activity = (StartConversationActivity) getActivity();
1000			if (activity == null) {
1001				return;
1002			}
1003			activity.getMenuInflater().inflate(mResContextMenu, menu);
1004			final AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
1005			if (mResContextMenu == R.menu.conference_context) {
1006				activity.conference_context_id = acmi.position;
1007			} else if (mResContextMenu == R.menu.contact_context) {
1008				activity.contact_context_id = acmi.position;
1009				final Contact contact = (Contact) activity.contacts.get(acmi.position);
1010				final MenuItem blockUnblockItem = menu.findItem(R.id.context_contact_block_unblock);
1011				final MenuItem showContactDetailsItem = menu.findItem(R.id.context_contact_details);
1012				if (contact.isSelf()) {
1013					showContactDetailsItem.setVisible(false);
1014				}
1015				XmppConnection xmpp = contact.getAccount().getXmppConnection();
1016				if (xmpp != null && xmpp.getFeatures().blocking() && !contact.isSelf()) {
1017					if (contact.isBlocked()) {
1018						blockUnblockItem.setTitle(R.string.unblock_contact);
1019					} else {
1020						blockUnblockItem.setTitle(R.string.block_contact);
1021					}
1022				} else {
1023					blockUnblockItem.setVisible(false);
1024				}
1025			}
1026		}
1027
1028		@Override
1029		public boolean onContextItemSelected(final MenuItem item) {
1030			StartConversationActivity activity = (StartConversationActivity) getActivity();
1031			if (activity == null) {
1032				return true;
1033			}
1034			switch (item.getItemId()) {
1035				case R.id.context_start_conversation:
1036					activity.openConversationForContact();
1037					break;
1038				case R.id.context_contact_details:
1039					activity.openDetailsForContact();
1040					break;
1041				case R.id.context_contact_block_unblock:
1042					activity.toggleContactBlock();
1043					break;
1044				case R.id.context_delete_contact:
1045					activity.deleteContact();
1046					break;
1047				case R.id.context_join_conference:
1048					activity.openConversationForBookmark();
1049					break;
1050				case R.id.context_share_uri:
1051					activity.shareBookmarkUri();
1052					break;
1053				case R.id.context_delete_conference:
1054					activity.deleteConference();
1055			}
1056			return true;
1057		}
1058	}
1059
1060	public class ListPagerAdapter extends PagerAdapter {
1061		FragmentManager fragmentManager;
1062		MyListFragment[] fragments;
1063
1064		public ListPagerAdapter(FragmentManager fm) {
1065			fragmentManager = fm;
1066			fragments = new MyListFragment[2];
1067		}
1068
1069		public void requestFocus(int pos) {
1070			if (fragments.length > pos) {
1071				fragments[pos].getListView().requestFocus();
1072			}
1073		}
1074
1075		@Override
1076		public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {
1077			assert (0 <= position && position < fragments.length);
1078			FragmentTransaction trans = fragmentManager.beginTransaction();
1079			trans.remove(fragments[position]);
1080			trans.commit();
1081			fragments[position] = null;
1082		}
1083
1084		@Override
1085		public Fragment instantiateItem(@NonNull ViewGroup container, int position) {
1086			Fragment fragment = getItem(position);
1087			FragmentTransaction trans = fragmentManager.beginTransaction();
1088			trans.add(container.getId(), fragment, "fragment:" + position);
1089			trans.commit();
1090			return fragment;
1091		}
1092
1093		@Override
1094		public int getCount() {
1095			return fragments.length;
1096		}
1097
1098		@Override
1099		public boolean isViewFromObject(@NonNull View view, @NonNull Object fragment) {
1100			return ((Fragment) fragment).getView() == view;
1101		}
1102
1103		public Fragment getItem(int position) {
1104			assert (0 <= position && position < fragments.length);
1105			if (fragments[position] == null) {
1106				final MyListFragment listFragment = new MyListFragment();
1107				if (position == 1) {
1108					listFragment.setListAdapter(mConferenceAdapter);
1109					listFragment.setContextMenu(R.menu.conference_context);
1110					listFragment.setOnListItemClickListener((arg0, arg1, p, arg3) -> openConversationForBookmark(p));
1111				} else {
1112
1113					listFragment.setListAdapter(mContactsAdapter);
1114					listFragment.setContextMenu(R.menu.contact_context);
1115					listFragment.setOnListItemClickListener((arg0, arg1, p, arg3) -> openConversationForContact(p));
1116				}
1117				fragments[position] = listFragment;
1118			}
1119			return fragments[position];
1120		}
1121	}
1122
1123	private class Invite extends XmppUri {
1124
1125		public String account;
1126
1127		public Invite(final Uri uri) {
1128			super(uri);
1129		}
1130
1131		public Invite(final String uri) {
1132			super(uri);
1133		}
1134
1135		public Invite(Uri uri, boolean safeSource) {
1136			super(uri, safeSource);
1137		}
1138
1139		boolean invite() {
1140			if (!isJidValid()) {
1141				Toast.makeText(StartConversationActivity.this, R.string.invalid_jid, Toast.LENGTH_SHORT).show();
1142				return false;
1143			}
1144			if (getJid() != null) {
1145				return handleJid(this);
1146			}
1147			return false;
1148		}
1149	}
1150}