1package eu.siacs.conversations.ui;
   2
   3import android.Manifest;
   4import android.annotation.SuppressLint;
   5import android.content.res.TypedArray;
   6import android.databinding.DataBindingUtil;
   7import android.databinding.ViewDataBinding;
   8import android.graphics.drawable.Drawable;
   9import android.support.annotation.AttrRes;
  10import android.support.annotation.DrawableRes;
  11import android.support.annotation.NonNull;
  12import android.support.annotation.Nullable;
  13import android.support.design.widget.TabLayout;
  14import android.support.v4.content.ContextCompat;
  15import android.support.v7.app.AlertDialog;
  16import android.app.Dialog;
  17import android.app.PendingIntent;
  18import android.content.ActivityNotFoundException;
  19import android.content.Context;
  20import android.content.DialogInterface;
  21import android.content.DialogInterface.OnClickListener;
  22import android.content.Intent;
  23import android.content.pm.PackageManager;
  24import android.net.Uri;
  25import android.os.Build;
  26import android.os.Bundle;
  27import android.support.v4.app.Fragment;
  28import android.support.v4.app.FragmentManager;
  29import android.support.v4.app.FragmentTransaction;
  30import android.support.v4.app.ListFragment;
  31import android.support.v4.view.MenuItemCompat;
  32import android.support.v4.view.PagerAdapter;
  33import android.support.v4.view.ViewPager;
  34import android.support.v7.app.ActionBar;
  35import android.support.v7.widget.Toolbar;
  36import android.text.Editable;
  37import android.text.SpannableString;
  38import android.text.Spanned;
  39import android.text.TextWatcher;
  40import android.text.style.TypefaceSpan;
  41import android.util.Log;
  42import android.util.Pair;
  43import android.view.ContextMenu;
  44import android.view.ContextMenu.ContextMenuInfo;
  45import android.view.KeyEvent;
  46import android.view.Menu;
  47import android.view.MenuItem;
  48import android.view.View;
  49import android.view.ViewGroup;
  50import android.view.inputmethod.InputMethodManager;
  51import android.widget.AdapterView;
  52import android.widget.AdapterView.AdapterContextMenuInfo;
  53import android.widget.AdapterView.OnItemClickListener;
  54import android.widget.ArrayAdapter;
  55import android.widget.AutoCompleteTextView;
  56import android.widget.CheckBox;
  57import android.widget.Checkable;
  58import android.widget.EditText;
  59import android.widget.ListView;
  60import android.widget.Spinner;
  61import android.widget.TextView;
  62import android.widget.Toast;
  63
  64import java.util.ArrayList;
  65import java.util.Arrays;
  66import java.util.Collection;
  67import java.util.Collections;
  68import java.util.List;
  69import java.util.concurrent.atomic.AtomicBoolean;
  70
  71import eu.siacs.conversations.Config;
  72import eu.siacs.conversations.R;
  73import eu.siacs.conversations.databinding.ActivityStartConversationBinding;
  74import eu.siacs.conversations.entities.Account;
  75import eu.siacs.conversations.entities.Bookmark;
  76import eu.siacs.conversations.entities.Contact;
  77import eu.siacs.conversations.entities.Conversation;
  78import eu.siacs.conversations.entities.ListItem;
  79import eu.siacs.conversations.entities.Presence;
  80import eu.siacs.conversations.services.XmppConnectionService.OnRosterUpdate;
  81import eu.siacs.conversations.ui.adapter.KnownHostsAdapter;
  82import eu.siacs.conversations.ui.adapter.ListItemAdapter;
  83import eu.siacs.conversations.ui.interfaces.OnBackendConnected;
  84import eu.siacs.conversations.ui.service.EmojiService;
  85import eu.siacs.conversations.ui.util.DelayedHintHelper;
  86import eu.siacs.conversations.utils.XmppUri;
  87import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
  88import eu.siacs.conversations.xmpp.XmppConnection;
  89import rocks.xmpp.addr.Jid;
  90
  91public class StartConversationActivity extends XmppActivity implements OnRosterUpdate, OnUpdateBlocklist, CreateConferenceDialog.CreateConferenceDialogListener, JoinConferenceDialog.JoinConferenceDialogListener {
  92
  93	private final int REQUEST_SYNC_CONTACTS = 0x28cf;
  94	private final int REQUEST_CREATE_CONFERENCE = 0x39da;
  95	public int conference_context_id;
  96	public int contact_context_id;
  97	private ListPagerAdapter mListPagerAdapter;
  98	private List<ListItem> contacts = new ArrayList<>();
  99	private ListItemAdapter mContactsAdapter;
 100	private List<ListItem> conferences = new ArrayList<>();
 101	private ListItemAdapter mConferenceAdapter;
 102	private List<String> mActivatedAccounts = new ArrayList<>();
 103	private Invite mPendingInvite = null;
 104	private EditText mSearchEditText;
 105	private AtomicBoolean mRequestedContactsPermission = new AtomicBoolean(false);
 106	private boolean mHideOfflineContacts = false;
 107	private MenuItem.OnActionExpandListener mOnActionExpandListener = new MenuItem.OnActionExpandListener() {
 108
 109		@Override
 110		public boolean onMenuItemActionExpand(MenuItem item) {
 111			mSearchEditText.post(() -> {
 112				mSearchEditText.requestFocus();
 113				InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
 114				imm.showSoftInput(mSearchEditText, InputMethodManager.SHOW_IMPLICIT);
 115			});
 116
 117			return true;
 118		}
 119
 120		@Override
 121		public boolean onMenuItemActionCollapse(MenuItem item) {
 122			hideKeyboard();
 123			mSearchEditText.setText("");
 124			filter(null);
 125			return true;
 126		}
 127	};
 128	private TextWatcher mSearchTextWatcher = new TextWatcher() {
 129
 130		@Override
 131		public void afterTextChanged(Editable editable) {
 132			filter(editable.toString());
 133		}
 134
 135		@Override
 136		public void beforeTextChanged(CharSequence s, int start, int count,
 137		                              int after) {
 138		}
 139
 140		@Override
 141		public void onTextChanged(CharSequence s, int start, int before, int count) {
 142		}
 143	};
 144	private TextView.OnEditorActionListener mSearchDone = new TextView.OnEditorActionListener() {
 145		@Override
 146		public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
 147			int pos = binding.startConversationViewPager.getCurrentItem();
 148			if (pos == 0) {
 149				if (contacts.size() == 1) {
 150					openConversationForContact((Contact) contacts.get(0));
 151					return true;
 152				}
 153			} else {
 154				if (conferences.size() == 1) {
 155					openConversationsForBookmark((Bookmark) conferences.get(0));
 156					return true;
 157				}
 158			}
 159			hideKeyboard();
 160			mListPagerAdapter.requestFocus(pos);
 161			return true;
 162		}
 163	};
 164	private MenuItem mMenuSearchView;
 165	private ListItemAdapter.OnTagClickedListener mOnTagClickedListener = new ListItemAdapter.OnTagClickedListener() {
 166		@Override
 167		public void onTagClicked(String tag) {
 168			if (mMenuSearchView != null) {
 169				mMenuSearchView.expandActionView();
 170				mSearchEditText.setText("");
 171				mSearchEditText.append(tag);
 172				filter(tag);
 173			}
 174		}
 175	};
 176	private String mInitialJid;
 177	private Pair<Integer, Intent> mPostponedActivityResult;
 178	private Toast mToast;
 179	private UiCallback<Conversation> mAdhocConferenceCallback = new UiCallback<Conversation>() {
 180		@Override
 181		public void success(final Conversation conversation) {
 182			runOnUiThread(() -> {
 183				hideToast();
 184				switchToConversation(conversation);
 185			});
 186		}
 187
 188		@Override
 189		public void error(final int errorCode, Conversation object) {
 190			runOnUiThread(() -> replaceToast(getString(errorCode)));
 191		}
 192
 193		@Override
 194		public void userInputRequried(PendingIntent pi, Conversation object) {
 195
 196		}
 197	};
 198	private ActivityStartConversationBinding binding;
 199	private ViewPager.SimpleOnPageChangeListener mOnPageChangeListener = new ViewPager.SimpleOnPageChangeListener() {
 200		@Override
 201		public void onPageSelected(int position) {
 202			onTabChanged();
 203		}
 204	};
 205
 206	public static void populateAccountSpinner(Context context, List<String> accounts, Spinner spinner) {
 207		if (accounts.size() > 0) {
 208			ArrayAdapter<String> adapter = new ArrayAdapter<>(context, R.layout.simple_list_item, accounts);
 209			adapter.setDropDownViewResource(R.layout.simple_list_item);
 210			spinner.setAdapter(adapter);
 211			spinner.setEnabled(true);
 212		} else {
 213			ArrayAdapter<String> adapter = new ArrayAdapter<>(context,
 214					R.layout.simple_list_item,
 215					Arrays.asList(context.getString(R.string.no_accounts)));
 216			adapter.setDropDownViewResource(R.layout.simple_list_item);
 217			spinner.setAdapter(adapter);
 218			spinner.setEnabled(false);
 219		}
 220	}
 221
 222	public static void launch(Context context) {
 223		final Intent intent = new Intent(context, StartConversationActivity.class);
 224		context.startActivity(intent);
 225	}
 226
 227	protected void hideToast() {
 228		if (mToast != null) {
 229			mToast.cancel();
 230		}
 231	}
 232
 233	protected void replaceToast(String msg) {
 234		hideToast();
 235		mToast = Toast.makeText(this, msg, Toast.LENGTH_LONG);
 236		mToast.show();
 237	}
 238
 239	@Override
 240	public void onRosterUpdate() {
 241		this.refreshUi();
 242	}
 243
 244	@Override
 245	public void onCreate(Bundle savedInstanceState) {
 246		super.onCreate(savedInstanceState);
 247		new EmojiService(this).init();
 248		this.binding = DataBindingUtil.setContentView(this, R.layout.activity_start_conversation);
 249		Toolbar toolbar = (Toolbar) binding.toolbar;
 250		setSupportActionBar(toolbar);
 251		configureActionBar(getSupportActionBar());
 252		this.binding.fab.setOnClickListener((v) -> {
 253			if (binding.startConversationViewPager.getCurrentItem() == 0) {
 254				String searchString = mSearchEditText != null ? mSearchEditText.getText().toString() : null;
 255				if (searchString != null && !searchString.trim().isEmpty()) {
 256					try {
 257						Jid jid = Jid.of(searchString);
 258						if (jid.getLocal() != null && jid.isBareJid() && jid.getDomain().contains(".")) {
 259							showCreateContactDialog(jid.toString(), null);
 260							return;
 261						}
 262					} catch (IllegalArgumentException ignored) {
 263						//ignore and fall through
 264					}
 265				}
 266				showCreateContactDialog(null, null);
 267			} else {
 268				showCreateConferenceDialog();
 269			}
 270		});
 271		TabLayout tabLayout = (TabLayout) findViewById(R.id.tab_layout);
 272		tabLayout.setupWithViewPager(binding.startConversationViewPager);
 273		binding.startConversationViewPager.addOnPageChangeListener(mOnPageChangeListener);
 274		mListPagerAdapter = new ListPagerAdapter(getSupportFragmentManager());
 275		binding.startConversationViewPager.setAdapter(mListPagerAdapter);
 276
 277		mConferenceAdapter = new ListItemAdapter(this, conferences);
 278		mContactsAdapter = new ListItemAdapter(this, contacts);
 279		mContactsAdapter.setOnTagClickedListener(this.mOnTagClickedListener);
 280		this.mHideOfflineContacts = getPreferences().getBoolean("hide_offline", false);
 281
 282	}
 283
 284	@Override
 285	public void onStart() {
 286		super.onStart();
 287		final int theme = findTheme();
 288		if (this.mTheme != theme) {
 289			recreate();
 290		} else {
 291			Intent i = getIntent();
 292			if (i == null || !i.hasExtra(WelcomeActivity.EXTRA_INVITE_URI)) {
 293				askForContactsPermissions();
 294			}
 295		}
 296		mConferenceAdapter.refreshSettings();
 297		mContactsAdapter.refreshSettings();
 298	}
 299
 300	@Override
 301	public void onNewIntent(Intent intent) {
 302		if (xmppConnectionServiceBound) {
 303			handleIntent(intent);
 304		} else {
 305			setIntent(intent);
 306		}
 307	}
 308
 309	protected void openConversationForContact(int position) {
 310		Contact contact = (Contact) contacts.get(position);
 311		openConversationForContact(contact);
 312	}
 313
 314	protected void openConversationForContact(Contact contact) {
 315		Conversation conversation = xmppConnectionService.findOrCreateConversation(contact.getAccount(), contact.getJid(), false, true);
 316		switchToConversation(conversation);
 317	}
 318
 319	protected void openConversationForContact() {
 320		int position = contact_context_id;
 321		openConversationForContact(position);
 322	}
 323
 324	protected void openConversationForBookmark() {
 325		openConversationForBookmark(conference_context_id);
 326	}
 327
 328	protected void openConversationForBookmark(int position) {
 329		Bookmark bookmark = (Bookmark) conferences.get(position);
 330		openConversationsForBookmark(bookmark);
 331	}
 332
 333	protected void shareBookmarkUri() {
 334		shareBookmarkUri(conference_context_id);
 335	}
 336
 337	protected void shareBookmarkUri(int position) {
 338		Bookmark bookmark = (Bookmark) conferences.get(position);
 339		Intent shareIntent = new Intent();
 340		shareIntent.setAction(Intent.ACTION_SEND);
 341		shareIntent.putExtra(Intent.EXTRA_TEXT, "xmpp:" + bookmark.getJid().asBareJid().toEscapedString() + "?join");
 342		shareIntent.setType("text/plain");
 343		try {
 344			startActivity(Intent.createChooser(shareIntent, getText(R.string.share_uri_with)));
 345		} catch (ActivityNotFoundException e) {
 346			Toast.makeText(this, R.string.no_application_to_share_uri, Toast.LENGTH_SHORT).show();
 347		}
 348	}
 349
 350	protected void openConversationsForBookmark(Bookmark bookmark) {
 351		Jid jid = bookmark.getJid();
 352		if (jid == null) {
 353			Toast.makeText(this, R.string.invalid_jid, Toast.LENGTH_SHORT).show();
 354			return;
 355		}
 356		Conversation conversation = xmppConnectionService.findOrCreateConversation(bookmark.getAccount(), jid, true, true, true);
 357		bookmark.setConversation(conversation);
 358		if (!bookmark.autojoin() && getPreferences().getBoolean("autojoin", getResources().getBoolean(R.bool.autojoin))) {
 359			bookmark.setAutojoin(true);
 360			xmppConnectionService.pushBookmarks(bookmark.getAccount());
 361		}
 362		switchToConversation(conversation);
 363	}
 364
 365	protected void openDetailsForContact() {
 366		int position = contact_context_id;
 367		Contact contact = (Contact) contacts.get(position);
 368		switchToContactDetails(contact);
 369	}
 370
 371	protected void toggleContactBlock() {
 372		final int position = contact_context_id;
 373		BlockContactDialog.show(this, (Contact) contacts.get(position));
 374	}
 375
 376	protected void deleteContact() {
 377		final int position = contact_context_id;
 378		final Contact contact = (Contact) contacts.get(position);
 379		final AlertDialog.Builder builder = new AlertDialog.Builder(this);
 380		builder.setNegativeButton(R.string.cancel, null);
 381		builder.setTitle(R.string.action_delete_contact);
 382		builder.setMessage(getString(R.string.remove_contact_text,
 383				contact.getJid()));
 384		builder.setPositiveButton(R.string.delete, new OnClickListener() {
 385
 386			@Override
 387			public void onClick(DialogInterface dialog, int which) {
 388				xmppConnectionService.deleteContactOnServer(contact);
 389				filter(mSearchEditText.getText().toString());
 390			}
 391		});
 392		builder.create().show();
 393	}
 394
 395	protected void deleteConference() {
 396		int position = conference_context_id;
 397		final Bookmark bookmark = (Bookmark) conferences.get(position);
 398
 399		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 400		builder.setNegativeButton(R.string.cancel, null);
 401		builder.setTitle(R.string.delete_bookmark);
 402		builder.setMessage(getString(R.string.remove_bookmark_text,
 403				bookmark.getJid()));
 404		builder.setPositiveButton(R.string.delete, new OnClickListener() {
 405
 406			@Override
 407			public void onClick(DialogInterface dialog, int which) {
 408				bookmark.setConversation(null);
 409				Account account = bookmark.getAccount();
 410				account.getBookmarks().remove(bookmark);
 411				xmppConnectionService.pushBookmarks(account);
 412				filter(mSearchEditText.getText().toString());
 413			}
 414		});
 415		builder.create().show();
 416
 417	}
 418
 419	@SuppressLint("InflateParams")
 420	protected void showCreateContactDialog(final String prefilledJid, final Invite invite) {
 421		FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
 422		Fragment prev = getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAG_DIALOG);
 423		if (prev != null) {
 424			ft.remove(prev);
 425		}
 426		ft.addToBackStack(null);
 427		EnterJidDialog dialog = EnterJidDialog.newInstance(
 428				mActivatedAccounts,
 429				getString(R.string.dialog_title_create_contact),
 430				getString(R.string.create),
 431				prefilledJid,
 432				null,
 433				invite == null || !invite.hasFingerprints()
 434		);
 435
 436		dialog.setOnEnterJidDialogPositiveListener((accountJid, contactJid) -> {
 437			if (!xmppConnectionServiceBound) {
 438				return false;
 439			}
 440
 441			final Account account = xmppConnectionService.findAccountByJid(accountJid);
 442			if (account == null) {
 443				return true;
 444			}
 445
 446			final Contact contact = account.getRoster().getContact(contactJid);
 447			if (invite != null && invite.getName() != null) {
 448				contact.setServerName(invite.getName());
 449			}
 450			if (contact.isSelf()) {
 451				switchToConversation(contact, null);
 452				return true;
 453			} else if (contact.showInRoster()) {
 454				throw new EnterJidDialog.JidError(getString(R.string.contact_already_exists));
 455			} else {
 456				xmppConnectionService.createContact(contact, true);
 457				if (invite != null && invite.hasFingerprints()) {
 458					xmppConnectionService.verifyFingerprints(contact, invite.getFingerprints());
 459				}
 460				switchToConversation(contact, invite == null ? null : invite.getBody());
 461				return true;
 462			}
 463		});
 464		dialog.show(ft, FRAGMENT_TAG_DIALOG);
 465	}
 466
 467	@SuppressLint("InflateParams")
 468	protected void showJoinConferenceDialog(final String prefilledJid) {
 469		FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
 470		Fragment prev = getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAG_DIALOG);
 471		if (prev != null) {
 472			ft.remove(prev);
 473		}
 474		ft.addToBackStack(null);
 475		JoinConferenceDialog joinConferenceFragment = JoinConferenceDialog.newInstance(prefilledJid, mActivatedAccounts);
 476		joinConferenceFragment.show(ft, FRAGMENT_TAG_DIALOG);
 477	}
 478
 479	private void showCreateConferenceDialog() {
 480		FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
 481		Fragment prev = getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAG_DIALOG);
 482		if (prev != null) {
 483			ft.remove(prev);
 484		}
 485		ft.addToBackStack(null);
 486		CreateConferenceDialog createConferenceFragment = CreateConferenceDialog.newInstance(mActivatedAccounts);
 487		createConferenceFragment.show(ft, FRAGMENT_TAG_DIALOG);
 488	}
 489
 490	private Account getSelectedAccount(Spinner spinner) {
 491		if (!spinner.isEnabled()) {
 492			return null;
 493		}
 494		Jid jid;
 495		try {
 496			if (Config.DOMAIN_LOCK != null) {
 497				jid = Jid.of((String) spinner.getSelectedItem(), Config.DOMAIN_LOCK, null);
 498			} else {
 499				jid = Jid.of((String) spinner.getSelectedItem());
 500			}
 501		} catch (final IllegalArgumentException e) {
 502			return null;
 503		}
 504		return xmppConnectionService.findAccountByJid(jid);
 505	}
 506
 507	protected void switchToConversation(Contact contact, String body) {
 508		Conversation conversation = xmppConnectionService
 509				.findOrCreateConversation(contact.getAccount(),
 510						contact.getJid(), false, true);
 511		switchToConversation(conversation, body, false);
 512	}
 513
 514	@Override
 515	public boolean onCreateOptionsMenu(Menu menu) {
 516		getMenuInflater().inflate(R.menu.start_conversation, menu);
 517		MenuItem menuHideOffline = menu.findItem(R.id.action_hide_offline);
 518		MenuItem joinGroupChat = menu.findItem(R.id.action_join_conference);
 519		MenuItem qrCodeScanMenuItem = menu.findItem(R.id.action_scan_qr_code);
 520		ActionBar bar = getSupportActionBar();
 521		joinGroupChat.setVisible(bar != null && binding.startConversationViewPager.getCurrentItem() == 1);
 522		qrCodeScanMenuItem.setVisible(isCameraFeatureAvailable());
 523		menuHideOffline.setChecked(this.mHideOfflineContacts);
 524		mMenuSearchView = menu.findItem(R.id.action_search);
 525		mMenuSearchView.setOnActionExpandListener(mOnActionExpandListener);
 526		View mSearchView = mMenuSearchView.getActionView();
 527		mSearchEditText = mSearchView.findViewById(R.id.search_field);
 528		mSearchEditText.addTextChangedListener(mSearchTextWatcher);
 529		mSearchEditText.setOnEditorActionListener(mSearchDone);
 530		if (mInitialJid != null) {
 531			mMenuSearchView.expandActionView();
 532			mSearchEditText.append(mInitialJid);
 533			filter(mInitialJid);
 534		}
 535		return super.onCreateOptionsMenu(menu);
 536	}
 537
 538	@Override
 539	public boolean onOptionsItemSelected(MenuItem item) {
 540		switch (item.getItemId()) {
 541			case R.id.action_join_conference:
 542				showJoinConferenceDialog(null);
 543				return true;
 544			case R.id.action_scan_qr_code:
 545				UriHandlerActivity.scan(this);
 546				return true;
 547			case R.id.action_hide_offline:
 548				mHideOfflineContacts = !item.isChecked();
 549				getPreferences().edit().putBoolean("hide_offline", mHideOfflineContacts).commit();
 550				if (mSearchEditText != null) {
 551					filter(mSearchEditText.getText().toString());
 552				}
 553				invalidateOptionsMenu();
 554		}
 555		return super.onOptionsItemSelected(item);
 556	}
 557
 558	@Override
 559	public boolean onKeyUp(int keyCode, KeyEvent event) {
 560		if (keyCode == KeyEvent.KEYCODE_SEARCH && !event.isLongPress()) {
 561			openSearch();
 562			return true;
 563		}
 564		int c = event.getUnicodeChar();
 565		if (c > 32) {
 566			if (mSearchEditText != null && !mSearchEditText.isFocused()) {
 567				openSearch();
 568				mSearchEditText.append(Character.toString((char) c));
 569				return true;
 570			}
 571		}
 572		return super.onKeyUp(keyCode, event);
 573	}
 574
 575	private void openSearch() {
 576		if (mMenuSearchView != null) {
 577			mMenuSearchView.expandActionView();
 578		}
 579	}
 580
 581	@Override
 582	public void onActivityResult(int requestCode, int resultCode, Intent intent) {
 583		if (resultCode == RESULT_OK) {
 584			if (xmppConnectionServiceBound) {
 585				this.mPostponedActivityResult = null;
 586				if (requestCode == REQUEST_CREATE_CONFERENCE) {
 587					Account account = extractAccount(intent);
 588					final String subject = intent.getStringExtra("subject");
 589					List<Jid> jids = new ArrayList<>();
 590					if (intent.getBooleanExtra("multiple", false)) {
 591						String[] toAdd = intent.getStringArrayExtra("contacts");
 592						for (String item : toAdd) {
 593							try {
 594								jids.add(Jid.of(item));
 595							} catch (IllegalArgumentException e) {
 596								//ignored
 597							}
 598						}
 599					} else {
 600						try {
 601							jids.add(Jid.of(intent.getStringExtra("contact")));
 602						} catch (Exception e) {
 603							//ignored
 604						}
 605					}
 606					if (account != null && jids.size() > 0) {
 607						if (xmppConnectionService.createAdhocConference(account, subject, jids, mAdhocConferenceCallback)) {
 608							mToast = Toast.makeText(this, R.string.creating_conference, Toast.LENGTH_LONG);
 609							mToast.show();
 610						}
 611					}
 612				}
 613			} else {
 614				this.mPostponedActivityResult = new Pair<>(requestCode, intent);
 615			}
 616		}
 617		super.onActivityResult(requestCode, requestCode, intent);
 618	}
 619
 620	private void askForContactsPermissions() {
 621		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 622			if (checkSelfPermission(Manifest.permission.READ_CONTACTS) != PackageManager.PERMISSION_GRANTED) {
 623				if (mRequestedContactsPermission.compareAndSet(false, true)) {
 624					if (shouldShowRequestPermissionRationale(Manifest.permission.READ_CONTACTS)) {
 625						AlertDialog.Builder builder = new AlertDialog.Builder(this);
 626						builder.setTitle(R.string.sync_with_contacts);
 627						builder.setMessage(R.string.sync_with_contacts_long);
 628						builder.setPositiveButton(R.string.next, new OnClickListener() {
 629							@Override
 630							public void onClick(DialogInterface dialog, int which) {
 631								if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 632									requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, REQUEST_SYNC_CONTACTS);
 633								}
 634							}
 635						});
 636						if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
 637							builder.setOnDismissListener(new DialogInterface.OnDismissListener() {
 638								@Override
 639								public void onDismiss(DialogInterface dialog) {
 640									if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 641										requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, REQUEST_SYNC_CONTACTS);
 642									}
 643								}
 644							});
 645						}
 646						builder.create().show();
 647					} else {
 648						requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, 0);
 649					}
 650				}
 651			}
 652		}
 653	}
 654
 655	@Override
 656	public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[], @NonNull int[] grantResults) {
 657		if (grantResults.length > 0)
 658			if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
 659				ScanActivity.onRequestPermissionResult(this, requestCode, grantResults);
 660				if (requestCode == REQUEST_SYNC_CONTACTS && xmppConnectionServiceBound) {
 661					xmppConnectionService.loadPhoneContacts();
 662				}
 663			}
 664	}
 665
 666	@Override
 667	protected void onBackendConnected() {
 668		if (mPostponedActivityResult != null) {
 669			onActivityResult(mPostponedActivityResult.first, RESULT_OK, mPostponedActivityResult.second);
 670			this.mPostponedActivityResult = null;
 671		}
 672		this.mActivatedAccounts.clear();
 673		for (Account account : xmppConnectionService.getAccounts()) {
 674			if (account.getStatus() != Account.State.DISABLED) {
 675				if (Config.DOMAIN_LOCK != null) {
 676					this.mActivatedAccounts.add(account.getJid().getLocal());
 677				} else {
 678					this.mActivatedAccounts.add(account.getJid().asBareJid().toString());
 679				}
 680			}
 681		}
 682		final Intent intent = getIntent();
 683		final ActionBar ab = getSupportActionBar();
 684		boolean init = intent != null && intent.getBooleanExtra("init", false);
 685		boolean noConversations = xmppConnectionService.getConversations().size() == 0;
 686		if ((init || noConversations) && ab != null) {
 687			ab.setDisplayShowHomeEnabled(false);
 688			ab.setDisplayHomeAsUpEnabled(false);
 689			ab.setHomeButtonEnabled(false);
 690		}
 691		if (this.mPendingInvite != null) {
 692			mPendingInvite.invite();
 693			this.mPendingInvite = null;
 694			filter(null);
 695		} else if (!handleIntent(getIntent())) {
 696			if (mSearchEditText != null) {
 697				filter(mSearchEditText.getText().toString());
 698			} else {
 699				filter(null);
 700			}
 701		} else {
 702			filter(null);
 703		}
 704		setIntent(null);
 705		Fragment fragment = getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAG_DIALOG);
 706		if (fragment != null && fragment instanceof OnBackendConnected) {
 707			Log.d(Config.LOGTAG,"calling on backend connected on dialog");
 708			((OnBackendConnected) fragment).onBackendConnected();
 709		}
 710	}
 711
 712	protected boolean handleIntent(Intent intent) {
 713		if (intent == null) {
 714			return false;
 715		}
 716		final String inviteUri = intent.getStringExtra(WelcomeActivity.EXTRA_INVITE_URI);
 717		if (inviteUri != null) {
 718			Invite invite = new Invite(inviteUri);
 719			if (invite.isJidValid()) {
 720				return invite.invite();
 721			}
 722		}
 723		if (intent.getAction() == null) {
 724			return false;
 725		}
 726		switch (intent.getAction()) {
 727			case Intent.ACTION_SENDTO:
 728			case Intent.ACTION_VIEW:
 729				Uri uri = intent.getData();
 730				if (uri != null) {
 731					Invite invite = new Invite(intent.getData(), intent.getBooleanExtra("scanned", false));
 732					invite.account = intent.getStringExtra("account");
 733					return invite.invite();
 734				} else {
 735					return false;
 736				}
 737		}
 738		return false;
 739	}
 740
 741	private boolean handleJid(Invite invite) {
 742		List<Contact> contacts = xmppConnectionService.findContacts(invite.getJid(), invite.account);
 743		if (invite.isAction(XmppUri.ACTION_JOIN)) {
 744			Conversation muc = xmppConnectionService.findFirstMuc(invite.getJid());
 745			if (muc != null) {
 746				switchToConversation(muc, invite.getBody(), false);
 747				return true;
 748			} else {
 749				showJoinConferenceDialog(invite.getJid().asBareJid().toString());
 750				return false;
 751			}
 752		} else if (contacts.size() == 0) {
 753			showCreateContactDialog(invite.getJid().toString(), invite);
 754			return false;
 755		} else if (contacts.size() == 1) {
 756			Contact contact = contacts.get(0);
 757			if (!invite.isSafeSource() && invite.hasFingerprints()) {
 758				displayVerificationWarningDialog(contact, invite);
 759			} else {
 760				if (invite.hasFingerprints()) {
 761					if (xmppConnectionService.verifyFingerprints(contact, invite.getFingerprints())) {
 762						Toast.makeText(this, R.string.verified_fingerprints, Toast.LENGTH_SHORT).show();
 763					}
 764				}
 765				if (invite.account != null) {
 766					xmppConnectionService.getShortcutService().report(contact);
 767				}
 768				switchToConversation(contact, invite.getBody());
 769			}
 770			return true;
 771		} else {
 772			if (mMenuSearchView != null) {
 773				mMenuSearchView.expandActionView();
 774				mSearchEditText.setText("");
 775				mSearchEditText.append(invite.getJid().toString());
 776				filter(invite.getJid().toString());
 777			} else {
 778				mInitialJid = invite.getJid().toString();
 779			}
 780			return true;
 781		}
 782	}
 783
 784	private void displayVerificationWarningDialog(final Contact contact, final Invite invite) {
 785		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 786		builder.setTitle(R.string.verify_omemo_keys);
 787		View view = getLayoutInflater().inflate(R.layout.dialog_verify_fingerprints, null);
 788		final CheckBox isTrustedSource = (CheckBox) view.findViewById(R.id.trusted_source);
 789		TextView warning = (TextView) view.findViewById(R.id.warning);
 790		String jid = contact.getJid().asBareJid().toString();
 791		SpannableString spannable = new SpannableString(getString(R.string.verifying_omemo_keys_trusted_source, jid, contact.getDisplayName()));
 792		int start = spannable.toString().indexOf(jid);
 793		if (start >= 0) {
 794			spannable.setSpan(new TypefaceSpan("monospace"), start, start + jid.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
 795		}
 796		warning.setText(spannable);
 797		builder.setView(view);
 798		builder.setPositiveButton(R.string.confirm, (dialog, which) -> {
 799			if (isTrustedSource.isChecked() && invite.hasFingerprints()) {
 800				xmppConnectionService.verifyFingerprints(contact, invite.getFingerprints());
 801			}
 802			switchToConversation(contact, invite.getBody());
 803		});
 804		builder.setNegativeButton(R.string.cancel, (dialog, which) -> StartConversationActivity.this.finish());
 805		AlertDialog dialog = builder.create();
 806		dialog.setCanceledOnTouchOutside(false);
 807		dialog.setOnCancelListener(dialog1 -> StartConversationActivity.this.finish());
 808		dialog.show();
 809	}
 810
 811	protected void filter(String needle) {
 812		if (xmppConnectionServiceBound) {
 813			this.filterContacts(needle);
 814			this.filterConferences(needle);
 815		}
 816	}
 817
 818	protected void filterContacts(String needle) {
 819		this.contacts.clear();
 820		for (Account account : xmppConnectionService.getAccounts()) {
 821			if (account.getStatus() != Account.State.DISABLED) {
 822				for (Contact contact : account.getRoster().getContacts()) {
 823					Presence.Status s = contact.getShownStatus();
 824					if (contact.showInRoster() && contact.match(this, needle)
 825							&& (!this.mHideOfflineContacts
 826							|| (needle != null && !needle.trim().isEmpty())
 827							|| s.compareTo(Presence.Status.OFFLINE) < 0)) {
 828						this.contacts.add(contact);
 829					}
 830				}
 831			}
 832		}
 833		Collections.sort(this.contacts);
 834		mContactsAdapter.notifyDataSetChanged();
 835	}
 836
 837	protected void filterConferences(String needle) {
 838		this.conferences.clear();
 839		for (Account account : xmppConnectionService.getAccounts()) {
 840			if (account.getStatus() != Account.State.DISABLED) {
 841				for (Bookmark bookmark : account.getBookmarks()) {
 842					if (bookmark.match(this, needle)) {
 843						this.conferences.add(bookmark);
 844					}
 845				}
 846			}
 847		}
 848		Collections.sort(this.conferences);
 849		mConferenceAdapter.notifyDataSetChanged();
 850	}
 851
 852	private void onTabChanged() {
 853		@DrawableRes final int fabDrawable;
 854		if (binding.startConversationViewPager.getCurrentItem() == 0) {
 855			fabDrawable = R.drawable.ic_person_add_white_24dp;
 856		} else {
 857			fabDrawable = R.drawable.ic_group_add_white_24dp;
 858		}
 859		binding.fab.setImageResource(fabDrawable);
 860		invalidateOptionsMenu();
 861	}
 862
 863	@Override
 864	public void OnUpdateBlocklist(final Status status) {
 865		refreshUi();
 866	}
 867
 868	@Override
 869	protected void refreshUiReal() {
 870		if (mSearchEditText != null) {
 871			filter(mSearchEditText.getText().toString());
 872		}
 873	}
 874
 875	@Override
 876	public void onCreateDialogPositiveClick(Spinner spinner,String subject) {
 877		if (!xmppConnectionServiceBound) {
 878			return;
 879		}
 880		final Account account = getSelectedAccount(spinner);
 881		if (account == null) {
 882			return;
 883		}
 884		Intent intent = new Intent(getApplicationContext(), ChooseContactActivity.class);
 885		intent.putExtra("multiple", true);
 886		intent.putExtra("show_enter_jid", true);
 887		intent.putExtra("subject", subject);
 888		intent.putExtra(EXTRA_ACCOUNT, account.getJid().asBareJid().toString());
 889		intent.putExtra(ChooseContactActivity.EXTRA_TITLE_RES_ID, R.string.choose_participants);
 890		startActivityForResult(intent, REQUEST_CREATE_CONFERENCE);
 891	}
 892
 893	@Override
 894	public void onJoinDialogPositiveClick(Dialog dialog, Spinner spinner, AutoCompleteTextView jid, boolean isBookmarkChecked) {
 895		if (!xmppConnectionServiceBound) {
 896			return;
 897		}
 898		final Account account = getSelectedAccount(spinner);
 899		if (account == null) {
 900			return;
 901		}
 902		final Jid conferenceJid;
 903		try {
 904			conferenceJid = Jid.of(jid.getText().toString());
 905		} catch (final IllegalArgumentException e) {
 906			jid.setError(getString(R.string.invalid_jid));
 907			return;
 908		}
 909
 910		if (isBookmarkChecked) {
 911			if (account.hasBookmarkFor(conferenceJid)) {
 912				jid.setError(getString(R.string.bookmark_already_exists));
 913			} else {
 914				final Bookmark bookmark = new Bookmark(account, conferenceJid.asBareJid());
 915				bookmark.setAutojoin(getPreferences().getBoolean("autojoin", getResources().getBoolean(R.bool.autojoin)));
 916				String nick = conferenceJid.getResource();
 917				if (nick != null && !nick.isEmpty()) {
 918					bookmark.setNick(nick);
 919				}
 920				account.getBookmarks().add(bookmark);
 921				xmppConnectionService.pushBookmarks(account);
 922				final Conversation conversation = xmppConnectionService
 923						.findOrCreateConversation(account, conferenceJid, true, true, true);
 924				bookmark.setConversation(conversation);
 925				dialog.dismiss();
 926				switchToConversation(conversation);
 927			}
 928		} else {
 929			final Conversation conversation = xmppConnectionService
 930					.findOrCreateConversation(account, conferenceJid, true, true, true);
 931			dialog.dismiss();
 932			switchToConversation(conversation);
 933		}
 934	}
 935
 936	public static class MyListFragment extends ListFragment {
 937		private AdapterView.OnItemClickListener mOnItemClickListener;
 938		private int mResContextMenu;
 939
 940		public void setContextMenu(final int res) {
 941			this.mResContextMenu = res;
 942		}
 943
 944		@Override
 945		public void onListItemClick(final ListView l, final View v, final int position, final long id) {
 946			if (mOnItemClickListener != null) {
 947				mOnItemClickListener.onItemClick(l, v, position, id);
 948			}
 949		}
 950
 951		public void setOnListItemClickListener(AdapterView.OnItemClickListener l) {
 952			this.mOnItemClickListener = l;
 953		}
 954
 955		@Override
 956		public void onViewCreated(@NonNull final View view, final Bundle savedInstanceState) {
 957			super.onViewCreated(view, savedInstanceState);
 958			registerForContextMenu(getListView());
 959			getListView().setFastScrollEnabled(true);
 960			getListView().setDivider(null);
 961			getListView().setDividerHeight(0);
 962		}
 963
 964		@Override
 965		public void onCreateContextMenu(final ContextMenu menu, final View v,
 966		                                final ContextMenuInfo menuInfo) {
 967			super.onCreateContextMenu(menu, v, menuInfo);
 968			final StartConversationActivity activity = (StartConversationActivity) getActivity();
 969			if (activity == null) {
 970				return;
 971			}
 972			activity.getMenuInflater().inflate(mResContextMenu, menu);
 973			final AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
 974			if (mResContextMenu == R.menu.conference_context) {
 975				activity.conference_context_id = acmi.position;
 976			} else if (mResContextMenu == R.menu.contact_context) {
 977				activity.contact_context_id = acmi.position;
 978				final Contact contact = (Contact) activity.contacts.get(acmi.position);
 979				final MenuItem blockUnblockItem = menu.findItem(R.id.context_contact_block_unblock);
 980				final MenuItem showContactDetailsItem = menu.findItem(R.id.context_contact_details);
 981				if (contact.isSelf()) {
 982					showContactDetailsItem.setVisible(false);
 983				}
 984				XmppConnection xmpp = contact.getAccount().getXmppConnection();
 985				if (xmpp != null && xmpp.getFeatures().blocking() && !contact.isSelf()) {
 986					if (contact.isBlocked()) {
 987						blockUnblockItem.setTitle(R.string.unblock_contact);
 988					} else {
 989						blockUnblockItem.setTitle(R.string.block_contact);
 990					}
 991				} else {
 992					blockUnblockItem.setVisible(false);
 993				}
 994			}
 995		}
 996
 997		@Override
 998		public boolean onContextItemSelected(final MenuItem item) {
 999			StartConversationActivity activity = (StartConversationActivity) getActivity();
1000			if (activity == null) {
1001				return true;
1002			}
1003			switch (item.getItemId()) {
1004				case R.id.context_start_conversation:
1005					activity.openConversationForContact();
1006					break;
1007				case R.id.context_contact_details:
1008					activity.openDetailsForContact();
1009					break;
1010				case R.id.context_contact_block_unblock:
1011					activity.toggleContactBlock();
1012					break;
1013				case R.id.context_delete_contact:
1014					activity.deleteContact();
1015					break;
1016				case R.id.context_join_conference:
1017					activity.openConversationForBookmark();
1018					break;
1019				case R.id.context_share_uri:
1020					activity.shareBookmarkUri();
1021					break;
1022				case R.id.context_delete_conference:
1023					activity.deleteConference();
1024			}
1025			return true;
1026		}
1027	}
1028
1029	public class ListPagerAdapter extends PagerAdapter {
1030		FragmentManager fragmentManager;
1031		MyListFragment[] fragments;
1032
1033		public ListPagerAdapter(FragmentManager fm) {
1034			fragmentManager = fm;
1035			fragments = new MyListFragment[2];
1036		}
1037
1038		public void requestFocus(int pos) {
1039			if (fragments.length > pos) {
1040				fragments[pos].getListView().requestFocus();
1041			}
1042		}
1043
1044		@Override
1045		public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {
1046			assert (0 <= position && position < fragments.length);
1047			FragmentTransaction trans = fragmentManager.beginTransaction();
1048			trans.remove(fragments[position]);
1049			trans.commit();
1050			fragments[position] = null;
1051		}
1052
1053		@Override
1054		public Fragment instantiateItem(@NonNull ViewGroup container, int position) {
1055			Fragment fragment = getItem(position);
1056			FragmentTransaction trans = fragmentManager.beginTransaction();
1057			trans.add(container.getId(), fragment, "fragment:" + position);
1058			trans.commit();
1059			return fragment;
1060		}
1061
1062		@Override
1063		public int getCount() {
1064			return fragments.length;
1065		}
1066
1067		@Override
1068		public boolean isViewFromObject(@NonNull View view, @NonNull Object fragment) {
1069			return ((Fragment) fragment).getView() == view;
1070		}
1071
1072		@Nullable
1073		@Override
1074		public CharSequence getPageTitle(int position) {
1075			switch (position) {
1076				case 0:
1077					return getResources().getString(R.string.contacts);
1078				case 1:
1079					return getResources().getString(R.string.conferences);
1080				default:
1081					return super.getPageTitle(position);
1082			}
1083		}
1084
1085		public Fragment getItem(int position) {
1086			assert (0 <= position && position < fragments.length);
1087			if (fragments[position] == null) {
1088				final MyListFragment listFragment = new MyListFragment();
1089				if (position == 1) {
1090					listFragment.setListAdapter(mConferenceAdapter);
1091					listFragment.setContextMenu(R.menu.conference_context);
1092					listFragment.setOnListItemClickListener((arg0, arg1, p, arg3) -> openConversationForBookmark(p));
1093				} else {
1094
1095					listFragment.setListAdapter(mContactsAdapter);
1096					listFragment.setContextMenu(R.menu.contact_context);
1097					listFragment.setOnListItemClickListener((arg0, arg1, p, arg3) -> openConversationForContact(p));
1098				}
1099				fragments[position] = listFragment;
1100			}
1101			return fragments[position];
1102		}
1103	}
1104
1105	private class Invite extends XmppUri {
1106
1107		public String account;
1108
1109		public Invite(final Uri uri) {
1110			super(uri);
1111		}
1112
1113		public Invite(final String uri) {
1114			super(uri);
1115		}
1116
1117		public Invite(Uri uri, boolean safeSource) {
1118			super(uri, safeSource);
1119		}
1120
1121		boolean invite() {
1122			if (!isJidValid()) {
1123				Toast.makeText(StartConversationActivity.this, R.string.invalid_jid, Toast.LENGTH_SHORT).show();
1124				return false;
1125			}
1126			if (getJid() != null) {
1127				return handleJid(this);
1128			}
1129			return false;
1130		}
1131	}
1132}